Heat absorption device of circuit board drying oven

Abstract

The utility model provides a circuit board oven heat absorption device which comprises an oven body, the front end of the oven body is movably connected with two oven doors through hinges, the middle portions of the front ends of the two oven doors are fixedly connected with door handles, and the four corners of the lower end of the oven body are fixedly connected with universal wheels. A controller is fixedly connected to the front portion of the right end of the drying oven body, cooling mechanisms are fixedly connected to the lower portion of the left end and the lower portion of the right end of the drying oven body in a penetrating mode, a hot air storage box is fixedly connected to the middle of the upper end of the drying oven body, and an air conveying pipe is fixedly connected to the middle of the front end of the hot air storage box in a penetrating mode. The end, away from the hot air storage box, of the air conveying pipe is fixedly connected with an exhaust hood in a penetrating mode. According to the heat absorption device of the circuit board oven, the heat absorption assembly is arranged, heat energy can be fully utilized, environment pollution is prevented, the cooling mechanism is arranged, the heat absorption and cooling speed is increased, the production efficiency is improved, and the heat absorption device is suitable for being widely used.

Description

Technical Field

[0001] The utility model discloses a circuit board oven heat absorption device, which relates to the circuit board production field. Background Art

[0002] In the production process of circuit boards, multiple steps are required, among which drying is a crucial step in the production of circuit boards. After drying, the circuit boards can improve their own strength, bendability and other properties. After the circuit boards are placed in the oven to complete drying, the staff opens the oven, and a large amount of hot air comes out of the oven, which can easily burn the staff, so a heat absorber is used to absorb the hot air coming out of the oven;

[0003] In the Chinese patent with publication number CN217715683U, a circuit board oven heat absorption device is mentioned. When the position sensor detects that the oven door is open, the controller controls the exhaust fan to start, quickly sucking away the hot air coming out of the oven, and the hot air is discharged to the outside through the exhaust pipe from the air collecting hood, effectively reducing the waiting time of the staff and improving production efficiency; however, in the prior art, the hot air is discharged to the outside through the exhaust pipe from the air collecting hood, but the sucked hot air is directly discharged, and the heat energy cannot be fully utilized, which reduces the heat energy utilization efficiency, and the hot air also contains harmful substances. Direct discharge will cause pollution to the environment and reduce practicality. Therefore, we introduce a circuit board oven heat absorption device. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a circuit board oven heat absorption device to solve the problems raised in the above background technology. The utility model fully utilizes thermal energy, enhances the adsorption effect, has a fast heat absorption speed and high production efficiency.

[0005] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0006] A circuit board oven heat absorption device comprises an oven body, the front end of the oven body is movably connected with two oven doors by hinges, the front middle parts of the two oven doors are fixedly connected with door handles, the four corners of the lower end of the oven body are fixedly connected with universal wheels, the front right end of the oven body is fixedly connected with a controller, the lower left end and the lower right end of the oven body are both inserted and fixedly connected with a cooling mechanism, the upper middle part of the oven body is fixedly connected with a hot gas storage box, the front middle part of the hot gas storage box is inserted and fixedly connected with an air supply pipe, the end of the air supply pipe away from the hot gas storage box is inserted and fixedly connected with an exhaust hood, and the rear lower end of the exhaust hood is fixedly connected to the upper front part of the oven body, the upper left and upper right parts of the hot gas storage box are both inserted and fixedly connected with exhaust pipes, and the middle parts of the outer surfaces of the two exhaust pipes are provided with a first solenoid valve.

[0007] Furthermore, a vacuum pump is inserted and fixedly connected to the middle of the left end and the middle of the right end of the hot gas storage box, and insulation pipes are inserted and fixedly connected to the opposite sides of the two vacuum pumps, and blowing hoods are inserted and fixedly connected to the ends of the two insulation pipes away from the vacuum pumps, and the opposite sides of the two blowing hoods are respectively inserted and fixedly connected to the left box wall and the right box wall of the oven body, and a plurality of activated carbon nets and a plurality of high-efficiency filter nets are arranged inside the hot gas storage box.

[0008] Furthermore, the plurality of activated carbon nets and the plurality of high-efficiency filter nets are distributed in an interlaced manner, and the mesh diameters of the plurality of activated carbon nets and the mesh diameters of the plurality of high-efficiency filter nets are distributed in a decreasing manner from the middle to the outside.

[0009] Furthermore, the two vacuum pumps, the two first solenoid valves and the vacuum hood are all electrically connected to the controller, and the thickness of the vacuum hood is consistent with the thickness of the wall of the oven body.

[0010] Furthermore, the cooling mechanism includes a cooling pipe, a second solenoid valve is provided on the left portion of the outer surface of the cooling pipe, an exhaust fan is provided on the upper portion of the inner tube wall of the cooling pipe, a protective cover is threadedly connected to the upper portion of the outer surface of the cooling pipe, a dust filter is provided in the middle portion of the upper cover wall of the protective cover, and the left end of the cooling pipe is fixedly connected to the right box wall of the oven body through an insertion.

[0011] Furthermore, the cooling tube is configured as an L-shaped structure, and a spiral pattern is engraved on the upper portion of the outer surface of the cooling tube. The second solenoid valve, the exhaust fan and the oven body are all electrically connected to the controller.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up a heat absorption component, the hot air is extracted through the exhaust hood and input into the hot air storage box for storage. When the oven is used again, the hot air can be input back into it through the exhaust pump, which can make full use of the heat energy to speed up the heating speed of the oven and improve the efficiency of heat energy utilization. The hot air can be adsorbed and filtered through the activated carbon net and high-efficiency filter to avoid direct discharge of hot air to pollute the environment;

[0014] 2. By setting up a cooling mechanism, when the exhaust hood extracts hot air, the exhaust fan is started to input the outside air into the oven through the cooling pipe, so as to speed up the flow of air in the oven, increase the heat absorption and cooling speed of the oven, shorten the waiting time, and enable the staff to quickly take the circuit board out of the oven, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a circuit board oven heat absorption device of the utility model;

[0017] Figure 2 It is a schematic diagram of a heat absorbing component in a circuit board oven heat absorbing device of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of a hot gas storage box in a circuit board oven heat absorption device of the utility model;

[0019] Figure 4 It is a schematic diagram of a cooling mechanism in a circuit board oven heat absorption device of the utility model;

[0020] In the figure: 1. oven body; 2. oven door; 3. door handle; 4. universal wheel; 5. controller; 6. cooling mechanism; 7. hot air storage box; 8. gas pipe; 9. exhaust hood; 10. exhaust pipe; 11. first solenoid valve; 12. exhaust pump; 13. insulation pipe; 14. blowing hood; 15. activated carbon net; 16. high-efficiency filter; 61. cooling pipe; 62. second solenoid valve; 63. exhaust fan; 64. protective cover; 65. dust filter. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] See also Figures 1 to 3 , the utility model provides a technical solution:

[0023] The oven body 1 comprises an oven body 1, the front end of the oven body 1 is movably connected to two oven doors 2 through hinges, the front middle parts of the two oven doors 2 are fixedly connected to door handles 3, the four corners of the lower end of the oven body 1 are fixedly connected to universal wheels 4, the front right end of the oven body 1 is fixedly connected to a controller 5, the lower left end and the lower right end of the oven body 1 are interspersed and fixedly connected to a cooling mechanism 6, the middle part of the upper end of the oven body 1 is fixedly connected to a hot gas storage box 7, the front end of the hot gas storage box 7 is fixedly connected to the front end of the hot gas storage box 7, and the front end of the hot gas storage box 7 is fixedly connected to the front end of the hot gas storage box 7. An air delivery pipe 8 is inserted and fixedly connected in the middle, and an exhaust hood 9 is inserted and fixedly connected at one end of the air delivery pipe 8 away from the hot gas storage box 7, and the rear part of the lower end of the exhaust hood 9 is fixedly connected to the front part of the upper end of the oven body 1. An exhaust pipe 10 is inserted and fixedly connected at the upper left and upper right parts of the hot gas storage box 7. A first solenoid valve 11 is provided in the middle of the outer surface of the two exhaust pipes 10; an exhaust pump 12 is inserted and fixedly connected at the middle of the left end and the middle of the right end of the hot gas storage box 7. The opposite sides of the vacuum pump 12 are interspersed and fixedly connected with insulation pipes 13, and the ends of the two insulation pipes 13 away from the vacuum pump 12 are interspersed and fixedly connected with blowing hoods 14, and the opposite sides of the two blowing hoods 14 are interspersed and fixedly connected with the left box wall and the right box wall of the oven body 1 respectively. A plurality of activated carbon nets 15 and a plurality of high-efficiency filter nets 16 are arranged inside the hot gas storage box 7; the plurality of activated carbon nets 15 and the plurality of high-efficiency filter nets 16 are interlaced with each other, and the mesh diameters of the plurality of activated carbon nets 15 and the mesh diameters of the plurality of high-efficiency filter nets 16 are successively reduced from the middle to the outside, which can realize the sequential filtering and adsorption of hot gas and enhance the filtering and adsorption effect; the two vacuum pumps 12 and the two first solenoid valves 11 and the vacuum hood 9 are electrically connected to the controller 5, and the thickness of the blowing hood 14 is consistent with the thickness of the box wall of the oven body 1, so that the blowing hood 14 is connected to the oven body 1 and will not affect the circuit board in the oven body 1.

[0024] Specific implementation method: first hold the door handle 3 to open the oven door 2, so that the hot air in the oven body 1 can be dissipated through the opened oven door 2, and then the controller 5 controls the exhaust hood 9 to start, so that the exhaust hood 9 generates suction to extract the hot air in the oven body 1, and then the hot air is input into the hot air storage box 7 through the air pipe 8 for storage, which has a heat recovery function. When the hot air stored in the hot air storage box 7 is too much, the controller 5 can control the first solenoid valve 11 to open, so that the excess hot air in the hot air storage box 7 is discharged through the exhaust pipe 10, and the hot air is discharged. Before drying the circuit board, the hot air needs to pass through multiple activated carbon nets 15 and multiple high-efficiency filter nets 16 for adsorption and filtration in sequence, which can remove harmful substances contained in the hot air and avoid direct discharge of hot air to pollute the environment. When the oven body 1 is used to dry the circuit board again, the controller 5 controls the vacuum pump 12 to start, and the stored hot air can be transported to the blowing hood 14 through the insulation pipe 13, and the hot air can be transported back to the interior of the oven body 1 to quickly improve the stability inside the oven body 1, so that the thermal energy can be fully utilized, the utilization efficiency of thermal energy is improved, and the practicality of the heat absorption device is also improved.

[0025] See also Figure 4 The cooling mechanism 6 includes a cooling tube 61, a second solenoid valve 62 is provided on the left part of the outer surface of the cooling tube 61, an exhaust fan 63 is provided on the upper part of the inner tube wall of the cooling tube 61, a protective cover 64 is threadedly connected to the upper part of the outer surface of the cooling tube 61, a dust filter 65 is provided in the middle part of the upper cover wall of the protective cover 64, and the left end of the cooling tube 61 is fixedly connected with the right box wall of the oven body 1 through insertion; the cooling tube 61 is arranged as an L-shaped structure, and a spiral pattern is engraved on the upper part of the outer surface of the cooling tube 61, which is convenient for installation and disassembly between the protective cover 64 and the cooling tube 61, and the second solenoid valve 62, the exhaust fan 63 and the oven body 1 are all electrically connected to the controller 5.

[0026] Specific implementation method: During the process of the exhaust hood 9 extracting hot air from the oven body 1, the exhaust fan 63 and the second solenoid valve 62 can be started by the controller 5, so that the outside air can be sucked into the cooling pipe 61. Before the air enters the cooling pipe 61, the dust in the air will be filtered out by the dust filter 65 on the protective cover 64, and the air can be input into the oven body 1 through the cooling pipe 61, which can accelerate the flow of air in the oven body 1 and increase the heat absorption and cooling speed of the oven body 1 to achieve rapid cooling of the oven body 1, thereby shortening the waiting time of the staff, allowing the staff to quickly take the circuit board out of the oven body 1, thereby improving the production efficiency of the circuit board, and the protective cover 64 can be removed from the cooling pipe 61 by rotating it, so that the dust filter 65 on the protective cover 64 can be easily cleaned.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circuit board oven heat absorption device, comprising an oven body (1), characterized in that: The front end of the oven body (1) is movably connected to two doors (2) via hinges, the middle parts of the front ends of the two doors (2) are fixedly connected to door handles (3), the four corners of the lower end of the oven body (1) are fixedly connected to universal wheels (4), the front right end of the oven body (1) is fixedly connected to a controller (5), the lower left end and the lower right end of the oven body (1) are both interlaced and fixedly connected to a cooling mechanism (6), and the middle part of the upper end of the oven body (1) is fixedly connected to a hot gas storage device. A hot gas storage box (7) is provided, wherein a gas supply pipe (8) is inserted and fixedly connected to the middle of the front end of the hot gas storage box (7), an end of the gas supply pipe (8) away from the hot gas storage box (7) is inserted and fixedly connected to an exhaust hood (9), and the rear portion of the lower end of the exhaust hood (9) is fixedly connected to the front portion of the upper end of the oven body (1), and an exhaust pipe (10) is inserted and fixedly connected to the upper left and upper right portions of the hot gas storage box (7), and a first solenoid valve (11) is provided in the middle of the outer surface of the two exhaust pipes (10).

2. The circuit board oven heat absorption device according to claim 1, characterized in that: The middle of the left end and the middle of the right end of the hot gas storage box (7) are both inserted and fixedly connected with a vacuum pump (12), and the opposite sides of the two vacuum pumps (12) are both inserted and fixedly connected with a heat preservation pipe (13), and the ends of the two heat preservation pipes (13) away from the vacuum pump (12) are both inserted and fixedly connected with a blowing hood (14), and the opposite sides of the two blowing hoods (14) are respectively inserted and fixedly connected with the left box wall and the right box wall of the oven body (1), and the interior of the hot gas storage box (7) is provided with a plurality of activated carbon nets (15) and a plurality of high-efficiency filter nets (16).

3. The circuit board oven heat absorption device according to claim 2, characterized in that: The plurality of activated carbon nets (15) and the plurality of high-efficiency filter nets (16) are distributed in an interlaced manner, and the mesh diameters of the plurality of activated carbon nets (15) and the mesh diameters of the plurality of high-efficiency filter nets (16) are distributed in a manner that decreases in sequence from the middle to the outside.

4. The circuit board oven heat absorption device according to claim 2, characterized in that: The two vacuum pumps (12), the two first solenoid valves (11) and the vacuum hood (9) are all electrically connected to the controller (5), and the thickness of the vacuum hood (14) is consistent with the thickness of the wall of the oven body (1).

5. The circuit board oven heat absorption device according to claim 1, characterized in that: The cooling mechanism (6) comprises a cooling tube (61), a second solenoid valve (62) is arranged on the left portion of the outer surface of the cooling tube (61), an exhaust fan (63) is arranged on the upper portion of the inner tube wall of the cooling tube (61), a protective cover (64) is threadedly connected to the upper portion of the outer surface of the cooling tube (61), a dust filter (65) is arranged in the middle portion of the upper cover wall of the protective cover (64), and the left end of the cooling tube (61) is interlaced and fixedly connected to the right box wall of the oven body (1).

6. The circuit board oven heat absorption device according to claim 5, characterized in that: The cooling tube (61) is configured as an L-shaped structure, and a spiral pattern is engraved on the upper portion of the outer surface of the cooling tube (61). The second solenoid valve (62), the exhaust fan (63) and the oven body (1) are all electrically connected to the controller (5).

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