Silver glue sintering oven

Abstract

The utility model discloses a kind of silver glue sintering with oven, including oven body, the oven body front side is equipped with box door by hinge, the oven body inside is provided with transverse moving assembly, the oven body inside is provided with moving mounting plate by transverse moving assembly, the moving mounting plate is fixedly provided with placing plate in opposite face, the oven body top is fixedly provided with heating box. By reflow preheating component, the air entering the air inlet pipe can be preheated, the preheated air enters the heating box, and the air is heated by the heating rod, the heated air enters the exhaust pipe through the hot air pipe, and enters the oven body through the rectangular pipe, so that the discharged heat can be recycled, avoiding the situation that the heat is wasted when the gas carrying heat is directly discharged, so as to avoid the situation that the resources consumed by the silver glue sintering oven increase.

Description

Technical Field

[0001] This utility model relates to the field of silver paste sintering technology, and in particular to an oven for silver paste sintering. Background Technology

[0002] Silver paste sintering is mainly used in the electronics industry, especially in the curing of silver paste during the production of light-emitting diodes. The air inside the chamber is heated to a set temperature by a heating element, and the hot air is circulated evenly inside the chamber by a hot air circulation system, so that the silver paste can undergo a curing reaction in a high-temperature environment.

[0003] In the prior art, application number CN202122025620.9 proposes a silver paste sintering oven for the production of organic light-emitting diodes. In this oven, a blower and a heating grid are activated by a control switch. The heating grid heats the airflow. The airflow is divided into four parts by the second chamber and four rectangular frames and blown onto the four LED supports respectively, thereby accelerating the solidification of the silver paste. By setting vents, air circulation can be achieved inside the first chamber.

[0004] However, in the process of using the above-mentioned patent, the heated air is blown toward the four LED brackets and discharged from the first chamber through the vent. Since the heated air still carries heat, directly discharging the gas would lead to a waste of heat, which would increase the resources consumed by the oven for silver paste sintering. Based on the above problems, this application proposes an oven for silver paste sintering. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an oven for sintering silver paste, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An oven for sintering silver paste includes an oven body, a door hinged to the front of the oven body, a transverse moving assembly inside the oven body, a movable mounting plate inside the oven body via the transverse moving assembly, placement plates fixedly mounted on opposite sides of the movable mounting plate, a heating chamber fixedly mounted on the top of the oven body, a fan and a heating rod fixedly mounted inside the heating chamber, a hot air duct fixedly mounted on the rear of the heating chamber, an exhaust pipe fixedly mounted on the surface of the hot air duct, a rectangular tube fixedly mounted on the front of the exhaust pipe and fixedly installed inside the oven body, an air inlet pipe fixedly mounted on the front of the heating chamber, and a reflux heating assembly on the top of the oven body.

[0008] Preferably, the lateral movement component includes a servo motor fixedly installed on the right side of the oven body, a screw fixedly provided at the output end of the servo motor, a threaded sleeve provided on the surface of the screw, the threaded sleeve fixedly installed at the bottom of the movable mounting plate, a guide rod provided on the side of the threaded sleeve, the guide rod fixedly installed inside the oven body, a guide sleeve slidably provided on the surface of the guide rod, and the guide sleeve fixedly installed at the bottom of the movable mounting plate.

[0009] Preferably, the reflux heating assembly includes a reflux preheating box fixedly installed on the top of the oven body, the air inlet pipe is located inside the reflux preheating box, a guide plate is fixedly installed inside the reflux preheating box, the guide plate and the air inlet pipe are overlapped, a reflux pipe is fixedly installed on the left side of the reflux preheating box, the air outlet end of the reflux pipe passes through the oven body and extends into the interior of the oven body, and a filter assembly is installed on the right side of the reflux preheating box.

[0010] Preferably, the filtration assembly includes a conveying pipe fixedly installed on the right side of the reflux preheating box, a filter box fixedly installed on the surface of the conveying pipe, the filter box fixedly installed on the top of the oven body, and an activated carbon filter screen fixedly installed inside the filter box.

[0011] Preferably, the number of the guide vanes is several, and the several guide vanes are arranged in an alternating manner.

[0012] Preferably, the reflux preheating box has a rectangular structure, and both the reflux preheating box and the reflux pipe are made of thermal insulation material.

[0013] Preferably, the placement plate has an L-shaped structure, and there are several placement plates, which are symmetrically distributed.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: the oven for silver paste sintering can preheat the air entering the air inlet pipe through the reflux preheating component. The preheated air enters the heating chamber and is heated by the heating rod. The heated air enters the exhaust pipe through the hot air pipe and then enters the oven body through the rectangular tube. This facilitates the recovery of the discharged heat and avoids the waste of heat caused by the direct discharge of heat-carrying gas, thereby avoiding the increase in the resources consumed by the oven for silver paste sintering. Attached Figure Description

[0015] Figure 1 This is an isometric drawing of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the oven body of this utility model;

[0017] Figure 3 This is a schematic diagram of the lateral movement component structure of this utility model;

[0018] Figure 4 This is a schematic longitudinal cross-sectional view of the structure of this utility model;

[0019] Figure 5 This is a partial structural diagram of the present invention.

[0020] In the diagram: 1. Oven body; 2. Oven door; 3. Servo motor; 4. Screw; 5. Screw sleeve; 6. Movable mounting plate; 7. Guide sleeve; 8. Guide rod; 9. Placement plate; 10. Heating box; 11. Fan; 12. Heating rod; 13. Hot air duct; 14. Discharge pipe; 15. Rectangular tube; 16. Air inlet pipe; 17. Recirculation preheating box; 18. Baffle plate; 19. Recirculation pipe; 20. Conveying pipe; 21. Filter box; 22. Activated carbon filter. 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-5An oven for silver paste sintering includes an oven body 1. A door 2 is hinged to the front of the oven body 1. A transverse moving assembly is installed inside the oven body 1, and a movable mounting plate 6 is also installed inside the oven body 1 via the transverse moving assembly. Placement plates 9 are fixedly mounted on opposite sides of the movable mounting plates 6. The placement plates 9 are L-shaped, and there are several placement plates 9 arranged symmetrically. The bottom of the L-shaped placement plates 9 facilitates the placement of supports, while the vertical surfaces of the placement plates 9 clamp and fix the supports, making the supports more stable. The top of the oven body 1 is fixed... A heating chamber 10 is fixedly installed, and a fan 11 and a heating rod 12 are fixedly installed inside the heating chamber 10. A hot air pipe 13 is fixedly installed at the rear of the heating chamber 10, and an exhaust pipe 14 is fixedly installed on the surface of the hot air pipe 13. A rectangular tube 15 is fixedly installed at the front of the exhaust pipe 14 and is fixedly installed inside the oven body 1. An air inlet pipe 16 is fixedly installed at the front of the heating chamber 10. A reflux heating assembly is installed at the top of the oven body 1. The reflux heating assembly includes a reflux preheating box 17 fixedly installed at the top of the oven body 1. The air inlet pipe 16 is located inside the reflux preheating box 17. A plurality of guide plates 18 are provided, arranged in a staggered pattern. This staggered arrangement increases the travel distance of the return gas within the reflux preheating chamber 17, allowing the gas to remain in the chamber for a longer period, thus facilitating the full utilization of its heat. The guide plates 18 overlap with the inlet pipe 16. A reflux pipe 19 is fixedly installed on the left side of the reflux preheating chamber 17. The reflux preheating chamber 17 has a rectangular structure. Both the reflux preheating chamber 17 and the reflux pipe 19 are made of insulation material to prevent the heat from the return air from being transferred through the reflux preheating chamber. The hot box 17 and the return pipe 19 transfer heat to the external environment, avoiding the waste of heat from the return gas. The outlet of the return pipe 19 passes through the oven body 1 and extends into the interior of the oven body 1. A filter assembly is provided on the right side of the return preheating box 17. Then, the air carrying heat enters the interior of the return preheating box 17 through the return pipe 19. The air entering the return preheating box 17 moves inside the return preheating box 17 under the guidance of the guide plate 18, and is preheated by the air in the inlet pipe 16, which facilitates the recovery of heat in the exhaust gas and avoids the heat being directly discharged to the external environment, thus avoiding the waste of heat.

[0023] Specifically, the lateral movement component includes a servo motor 3 fixedly installed on the right side of the oven body 1. A screw 4 is fixedly installed at the output end of the servo motor 3, and a threaded sleeve 5 is threaded on the surface of the screw 4. The threaded sleeve 5 is fixedly installed at the bottom of the movable mounting plate 6. A guide rod 8 is provided on the side of the threaded sleeve 5. The guide rod 8 is fixedly installed inside the oven body 1, and a guide sleeve 7 is slidably installed on the surface of the guide rod 8. The guide sleeve 7 is fixedly installed at the bottom of the movable mounting plate 6. The output end of the servo motor 3 drives the screw 4 to rotate, causing the threaded sleeve 5 to move the movable mounting plate 6. This causes the movable mounting plate 6 to move the guide sleeve 7 on the surface of the guide rod 8, and causes the movable mounting plate 6 to move the placement plate 9. This facilitates the placement of brackets of different specifications. Moreover, the placement plate 9 contacts the bracket through its side wall, which can clamp and fix the bracket, thus making it suitable for brackets of different specifications.

[0024] Specifically, the filtration assembly includes a conveying pipe 20 fixedly installed on the right side of the reflux preheating box 17, a filter box 21 fixedly installed on the surface of the conveying pipe 20, the filter box 21 fixedly installed on the top of the oven body 1, and an activated carbon filter screen 22 fixedly installed inside the filter box 21. During the sintering process of the silver paste, some organic solvents will volatilize and form a gaseous state, which will be discharged with the hot air. When the residual heat of the discharged air heats the air in the air inlet pipe 16, it will be discharged into the filter box 21 through the conveying pipe 20 and filtered by the activated carbon filter screen 22, thus avoiding pollution of the air by organic solvents and preventing the organic solvents from igniting or even exploding when exposed to open flames.

[0025] The silver paste sintering oven is connected to a 220V mains power supply, and the main controller can be a conventional known device such as a computer for control.

[0026] In use: Start the fan 11 to allow external air to enter the heating chamber 10 and be heated by the heating rod 12. The heated air then enters the hot air duct 13, where it is split into multiple streams. The split heated air then enters the exhaust pipe 14 and passes through the rectangular pipe 15 into the oven body 1. The heated air is used to sinter the silver paste onto the diodes. The air carrying the heat then enters the return pipe 19 and then the return preheating chamber 17. The air entering the return preheating chamber 17 moves within it under the influence of the guide plate 18 and is preheated by the air in the intake pipe 16. After the preheated air enters the heating chamber 10, it is heated again by the heating rod 12, thus recovering the discharged heat.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An oven for sintering silver paste, comprising an oven body (1), characterized in that, The oven body (1) has a door (2) hinged to the front. A transverse moving assembly is installed inside the oven body (1). A movable mounting plate (6) is installed inside the oven body (1) via the transverse moving assembly. Placement plates (9) are fixedly installed on the opposing surfaces of the movable mounting plates (6). A heating box (10) is fixedly installed on the top of the oven body (1). A fan (11) and a heating rod (12) are fixedly installed inside the heating box (10). A hot air pipe (13) is fixedly installed on the rear side of the heating box (10). An exhaust pipe (14) is fixedly installed on the surface of the hot air pipe (13). A rectangular tube (15) is fixedly installed on the front side of the exhaust pipe (14). The rectangular tube (15) is fixedly installed on the oven body. Inside the body (1), an air inlet pipe (16) is fixedly installed on the front side of the heating box (10). A reflux heating assembly is installed on the top of the oven body (1). The reflux heating assembly includes a reflux preheating box (17) fixedly installed on the top of the oven body (1). The air inlet pipe (16) is located inside the reflux preheating box (17). A guide plate (18) is fixedly installed inside the reflux preheating box (17). The guide plate (18) and the air inlet pipe (16) are connected. A reflux pipe (19) is fixedly installed on the left side of the reflux preheating box (17). The outlet end of the reflux pipe (19) passes through the oven body (1) and extends into the interior of the oven body (1). A filter assembly is installed on the right side of the reflux preheating box (17).

2. The drying oven for silver paste sintering according to claim 1, characterized in that, The lateral movement component includes a servo motor (3) fixedly installed on the right side of the oven body (1). A screw (4) is fixedly installed at the output end of the servo motor (3). A screw sleeve (5) is threaded on the surface of the screw (4). The screw sleeve (5) is fixedly installed at the bottom of the movable mounting plate (6). A guide rod (8) is provided on the side of the screw sleeve (5). The guide rod (8) is fixedly installed inside the oven body (1). A guide sleeve (7) is slidably installed on the surface of the guide rod (8). The guide sleeve (7) is fixedly installed at the bottom of the movable mounting plate (6).

3. The drying oven for silver paste sintering according to claim 1, characterized in that, The filter assembly includes a conveying pipe (20) fixedly installed on the right side of the reflux preheating box (17), a filter box (21) fixedly installed on the surface of the conveying pipe (20), the filter box (21) fixedly installed on the top of the oven body (1), and an activated carbon filter screen (22) fixedly installed inside the filter box (21).

4. The drying oven for silver paste sintering according to claim 1, characterized in that, The number of the guide plates (18) is several, and the several guide plates (18) are arranged in an alternating manner.

5. The drying oven for silver paste sintering according to claim 1, characterized in that, The reflux preheating box (17) has a rectangular structure, and both the reflux preheating box (17) and the reflux pipe (19) are made of thermal insulation material.

6. The drying oven for silver paste sintering according to claim 1, characterized in that, The placement plate (9) has an L-shaped structure, and there are several placement plates (9), which are symmetrically distributed.

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