CN220611169U

CN220611169U - Dust-free and oxygen-free conductive adhesive curing furnace

Info

Publication number: CN220611169U
Application number: CN202322232596.5U
Authority: CN
Inventors: 王倩
Original assignee: Jiangsu Huida Electronic Technology Co ltd
Current assignee: Jiangsu Huida Electronic Technology Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-03-19
Anticipated expiration: 2033-08-18

Abstract

The utility model provides a dust-free and oxygen-free conductive adhesive curing furnace, which belongs to the technical field of conductive adhesive curing, and comprises a furnace body, a circulating part, a nitrogen pipe and a ventilation part, wherein a curing cavity is arranged in the furnace body, a heating part is arranged in the curing cavity, the circulating part comprises a circulating fan, an exhaust pipe and an air supply pipe are connected to the circulating fan, the exhaust pipe is communicated with the curing cavity, one end of the air supply pipe, which is far away from the circulating fan, is connected with a first branch pipe and a second branch pipe through a first three-way valve, the first branch pipe is communicated with the curing cavity, the second branch pipe is communicated with the atmosphere, one end of the nitrogen pipe is communicated with the curing cavity, and the other end of the nitrogen pipe is connected with a nitrogen source; the ventilation part comprises a ventilation pipe, one end of the ventilation pipe is communicated with the curing cavity, the other end of the ventilation pipe is connected with a third branch pipe and a fourth branch pipe through a second three-way valve, the third branch pipe is connected with the vacuum machine, and the fourth branch pipe is communicated with the atmosphere. The dust-free and oxygen-free conductive adhesive curing furnace provided by the utility model has a good cooling effect, and can be used for rapidly cooling components.

Description

Dust-free and oxygen-free conductive adhesive curing furnace

Technical Field

The utility model belongs to the technical field of conductive adhesive curing, and particularly relates to a dust-free and oxygen-free conductive adhesive curing furnace.

Background

The conductive adhesive is an adhesive with certain conductivity after being solidified or dried. It can connect various conductive materials together to form an electrical path between the materials to be connected. In the electronics industry, conductive adhesives have become an indispensable new material. In the curing of conductive adhesive of traditional components and parts, the conductive adhesive is usually heated to 300-350 ℃, and after the curing of the conductive adhesive is finished, the temperature is required to be reduced, however, the conventional curing furnace is not usually provided with effective temperature reduction measures, so that the temperature reduction speed of components and parts in the furnace is low, and the production efficiency is affected.

Disclosure of Invention

The utility model aims to provide a dust-free and oxygen-free conductive adhesive curing oven, which aims to solve the problem of low cooling speed of components in the curing oven in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: provided is a dust-free and oxygen-free conductive adhesive curing oven, comprising:

the device comprises a furnace body, wherein a curing cavity is arranged in the furnace body, and a heating component is arranged in the curing cavity;

the circulating component comprises a circulating fan, wherein the circulating fan is connected with an exhaust pipe and an air supply pipe, the exhaust pipe is communicated with the curing cavity, one end of the air supply pipe, which is far away from the circulating fan, is connected with a first branch pipe and a second branch pipe through a first three-way valve, the first branch pipe is communicated with the curing cavity, and the second branch pipe is communicated with the atmosphere;

one end of the nitrogen pipe is communicated with the curing cavity, and the other end of the nitrogen pipe is connected with a nitrogen source;

the ventilation component comprises a ventilation pipe, one end of the ventilation pipe is communicated with the curing cavity, the other end of the ventilation pipe is connected with a third branch pipe and a fourth branch pipe through a second three-way valve, the third branch pipe is connected with a vacuum machine, and the fourth branch pipe is communicated with the atmosphere.

In one possible implementation manner, a first motor is arranged at the upper end of the furnace body, a first rotating shaft is arranged at the driving end of the first motor, a fan blade is arranged at one end, away from the first motor, of the first rotating shaft, and the fan blade is located in the curing cavity.

In a possible implementation manner, an installation cavity is further formed in the furnace body, the installation cavity is located below the curing cavity, a partition plate is arranged between the installation cavity and the curing cavity, a second rotating shaft is arranged on the partition plate in a penetrating mode, a tray is arranged at the upper end of the second rotating shaft and located in the curing cavity, a driving component used for driving the second rotating shaft to rotate is arranged at the lower end of the second rotating shaft, and the driving component is located in the installation cavity.

In one possible implementation, the driving part includes:

the first bevel gear is connected to the second rotating shaft;

the output end of the second motor is provided with a driving shaft;

and the second bevel gear is connected to the driving shaft and meshed with the first bevel gear.

In one possible implementation, the exhaust pipe and the first branch pipe are respectively connected to opposite side walls of the curing cavity.

In one possible implementation, a drying chamber is provided on the exhaust pipe, and a drying agent is provided in the drying chamber.

In one possible implementation, a filter screen is disposed on the fourth branch pipe.

In one possible implementation, a temperature sensor is provided on a sidewall of the curing chamber.

In one possible implementation, an oxygen concentration sensor is provided on a sidewall of the curing chamber.

In one possible implementation, an opening is provided on one side of the curing chamber, and a sealing door is provided on the opening.

The dust-free and oxygen-free conductive adhesive curing furnace provided by the utility model has the beneficial effects that: compared with the prior art, the dust-free and oxygen-free conductive adhesive curing furnace has the advantages that when the dust-free and oxygen-free conductive adhesive curing furnace is used, the second three-way valve is controlled to enable the third branch pipe to be communicated with the vent pipe, the vacuum pump is started to vacuumize air in the curing cavity, oxygen is removed, the second three-way valve is closed, the nitrogen source supplements nitrogen into the curing cavity through the nitrogen pipe, after the air pressure in the curing cavity reaches normal, the heating part heats the nitrogen to enable the conductive adhesive to be cured, in the curing process, the first three-way valve is controlled to enable the air supply pipe to be communicated with the first branch pipe, the circulating fan is started to enable the heated nitrogen to circulate in the curing cavity, after the conductive adhesive is cured, the second three-way valve is controlled to enable the vent pipe to be communicated with the fourth branch pipe, the first three-way valve is controlled to enable the air supply pipe to be communicated with the second branch pipe, and air with lower external temperature enters the curing cavity to cool components through the fourth branch pipe, and is discharged to the atmosphere through the second branch pipe, and the air with lower external temperature can be enabled to continuously cool the components under the effect of the circulating fan, so that the cooling efficiency of the components can be cooled continuously, and the cooling efficiency of the components is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front view of a dust-free and oxygen-free conductive adhesive curing oven according to an embodiment of the present utility model;

fig. 2 is a right side view of a dust-free and oxygen-free conductive adhesive curing oven according to an embodiment of the present utility model;

fig. 3 is a front cross-sectional view of a dust-free and oxygen-free conductive adhesive curing oven according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a furnace body; 101. a curing chamber; 102. a heating member; 103. a mounting cavity; 104. a partition plate; 105. a temperature sensor; 106. an oxygen concentration sensor; 107. sealing the door; 108. a handle; 21. a circulating fan; 22. an exhaust pipe; 23. an air supply pipe; 24. a first branch pipe; 25. a second branch pipe; 26. a first three-way valve; 3. a nitrogen pipe; 41. a vent pipe; 42. a third branch pipe; 43. a fourth branch pipe; 431. a filter screen; 44. a second three-way valve; 5. a vacuum machine; 61. a first motor; 62. a first rotating shaft; 63. a fan blade; 7. a drying chamber; 81. a second rotating shaft; 82. a tray; 91. a first bevel gear; 92. a second motor; 921. a drive shaft; 93. and a second bevel gear.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 3, a dust-free and oxygen-free conductive adhesive curing oven provided by the utility model will now be described. The dust-free and oxygen-free conductive adhesive curing oven comprises an oven body 1, a circulating part, a nitrogen pipe 3 and a ventilation part, wherein a curing cavity 101 is arranged in the oven body 1, a heating part 102 is arranged in the curing cavity 101, the circulating part comprises a circulating fan 21, an exhaust pipe 22 and an air supply pipe 23 are connected to the circulating fan 21, the exhaust pipe 22 is communicated with the curing cavity 101, one end, far away from the circulating fan 21, of the air supply pipe 23 is connected with a first branch pipe 24 and a second branch pipe 25 through a first three-way valve 26, the first branch pipe 24 is communicated with the curing cavity 101, the second branch pipe 25 is communicated with the atmosphere, one end of the nitrogen pipe 3 is communicated with the curing cavity 101, and the other end of the air supply pipe is connected with a nitrogen source; the ventilation part comprises a ventilation pipe 41, one end of the ventilation pipe 41 is communicated with the solidification cavity 101, the other end of the ventilation pipe 41 is connected with a third branch pipe 42 and a fourth branch pipe 43 through a second three-way valve 44, the third branch pipe 42 is connected with the vacuum machine 5, and the fourth branch pipe 43 is communicated with the atmosphere.

Compared with the prior art, the dust-free and oxygen-free conductive adhesive curing furnace provided by the utility model has the advantages that when in use, the second three-way valve 44 is controlled to enable the third branch pipe 42 to be communicated with the vent pipe 41, the vacuum pump is started to vacuumize the air in the curing cavity 101, oxygen is removed, the second three-way valve 44 is closed, the nitrogen source supplements nitrogen into the curing cavity 101 through the nitrogen pipe 3, after the air pressure in the curing cavity 101 reaches normal, the heating part 102 heats the nitrogen to enable the conductive adhesive to be cured, the first three-way valve 26 is controlled to enable the air supply pipe 23 to be communicated with the first branch pipe 24 in the curing process, the circulating fan 21 is started to enable the heated nitrogen to circulate in the curing cavity 101, the temperature in the curing cavity 101 is uniform, after the conductive adhesive is cured, the second three-way valve 44 is controlled to enable the vent pipe 41 to be communicated with the fourth branch pipe 43, the first three-way valve 26 is controlled to enable the air supply pipe 23 to be communicated with the second branch pipe 25, and air with lower external temperature enters the curing cavity 101 through the fourth branch pipe to cool components, and the components are discharged into the atmosphere through the second branch pipe 25, and the components are cooled under the action of the circulating fan 21, the lower temperature can be enabled, and the components are cooled continuously, and the components are cooled.

In some embodiments, referring to fig. 1 to 3, the furnace body 1 is square, the front side of the furnace body 1 is provided with an opening communicating with the curing chamber 101, a sealing door 107 is arranged on the opening, a handle 108 for operating the sealing door 107 to open and close is arranged on the sealing door 107, a heating component 102 is arranged on the side wall opposite to the sealing door 107, in this embodiment, the heating component 102 may be a stainless steel heating tube, a circulating fan 21 is arranged at the upper end of the furnace body 1, the left side of the circulating fan 21 is connected with an exhaust tube 22, one end of the exhaust tube 22 away from the circulating fan 21 penetrates through the left side wall of the furnace body 1 and extends into the curing chamber 101 to communicate with the curing chamber 101, a port of the exhaust tube 22 in the curing chamber 101 is arranged at the upper part of the curing chamber 101, the right side of the circulating fan 21 is connected with an air supply tube 23, the air supply pipe 23 is connected with a first branch pipe 24 and a second branch pipe 25 through a first three-way valve 26 at one end far away from the circulating fan 21, wherein the second branch pipe 25 is directly communicated with the outside atmosphere, one end of the first branch pipe 24 far away from the first three-way valve 26 penetrates through the right side wall of the furnace body 1 and extends into the curing cavity 101 to be communicated with the curing cavity 101, a port of the first branch pipe 24 in the curing cavity 101 is positioned at the lower part of the curing cavity 101, and the high-temperature gas in the curing cavity 101 can circulate from bottom to top under the action of the circulating fan 21 by arranging the air exhaust pipe 22 and the first branch pipe 24 at the upper part of the left side wall and the lower part of the right side wall on the furnace body 1 respectively, so that the circulation range of the high-temperature gas is maximized.

Further, referring to fig. 1 to 3, a drying chamber 7 is connected to the air exhaust pipe 22, a drying agent is disposed in the drying chamber 7, specifically, a drying agent box is disposed in the drying chamber 7, ventilation holes are disposed on two opposite side walls of the drying agent box, the drying agent box is separated into a plurality of small squares for containing the drying agent by using a silk screen, when the drying agent box is used, high-temperature gas carrying water vapor passes through the drying agent box through the ventilation holes, and the drying agent in the drying agent box adsorbs the water vapor.

Further, referring to fig. 1 to 3, a first motor 61 is disposed at an upper end of the furnace body 1, a first rotating shaft 62 is disposed at a driving end of the first motor 61, the first rotating shaft 62 penetrates through an upper sidewall of the furnace body 1 and extends into the curing cavity 101, and a fan blade 63 is connected to an end portion of the first rotating shaft 62 located in the curing cavity 101.

Further, referring to fig. 1 to 3, an installation cavity 103 is further provided in the furnace body 1, the installation cavity 103 is provided below the curing cavity 101, a partition 104 is provided between the installation cavity 103 and the curing cavity 101, a second rotating shaft 81 is provided on the partition 104 in a penetrating manner, a tray 82 is provided at the upper end of the second rotating shaft 81, the tray 82 is located in the curing cavity 101, a driving component for driving the second rotating shaft 81 to rotate is provided at the lower end of the second rotating shaft 81, and the driving component is located in the installation cavity 103.

Specifically, referring to fig. 1 to 3, the driving unit includes a first bevel gear 91, a second bevel gear 93, and a second motor 92, wherein the first bevel gear 91 is connected to the second rotating shaft 81, a driving shaft 921 is provided at an output end of the second motor 92, the second bevel gear 93 is connected to the driving shaft 921, and the second bevel gear 93 is meshed with the first bevel gear 91.

In some embodiments, referring to fig. 1 to 3, a temperature sensor 105 is disposed on a side wall of the curing chamber 101 and is used for monitoring temperature change in the curing chamber 101 in real time, and an oxygen concentration sensor 106 is also disposed on the side wall of the curing chamber 101 and is used for monitoring oxygen content in the curing chamber 101 in real time, and when the temperature and/or oxygen content in the curing chamber 101 exceeds a set threshold range, the furnace body 1 alarms through a set alarm.

In some embodiments, referring to fig. 1, in order to keep the curing chamber 101 clean, a filter screen 431 is disposed on the fourth branch pipe 43, and by providing the filter screen 431 on the fourth branch pipe 43 to filter the air entering the curing chamber 101, some dust and sundries can be isolated outside the curing chamber 101, so that the curing chamber 101 can keep a clean environment.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A dust-free and oxygen-free conductive adhesive curing oven, which is characterized by comprising:

the furnace comprises a furnace body (1), wherein a curing cavity (101) is arranged in the furnace body (1), and a heating component (102) is arranged in the curing cavity (101);

the circulating component comprises a circulating fan (21), wherein an exhaust pipe (22) and an air supply pipe (23) are connected to the circulating fan (21), the exhaust pipe (22) is communicated with the curing cavity (101), one end, far away from the circulating fan (21), of the air supply pipe (23) is connected with a first branch pipe (24) and a second branch pipe (25) through a first three-way valve (26), the first branch pipe (24) is communicated with the curing cavity (101), and the second branch pipe (25) is communicated with the atmosphere;

a nitrogen pipe (3), wherein one end of the nitrogen pipe (3) is communicated with the curing cavity (101), and the other end of the nitrogen pipe is connected with a nitrogen source;

the ventilation component comprises a ventilation pipe (41), one end of the ventilation pipe (41) is communicated with the curing cavity (101), the other end of the ventilation pipe (41) is connected with a third branch pipe (42) and a fourth branch pipe (43) through a second three-way valve (44), the third branch pipe (42) is connected with a vacuum machine (5), and the fourth branch pipe (43) is communicated with the atmosphere.

2. The dust-free and oxygen-free conductive adhesive curing oven according to claim 1, wherein a first motor (61) is arranged at the upper end of the oven body (1), a first rotating shaft (62) is arranged at the driving end of the first motor (61), a fan blade (63) is arranged at one end, far away from the first motor (61), of the first rotating shaft (62), and the fan blade (63) is located in the curing cavity (101).

3. The dust-free and oxygen-free conductive adhesive curing oven according to claim 1, wherein an installation cavity (103) is further arranged in the oven body (1), the installation cavity (103) is located below the curing cavity (101), a partition plate (104) is arranged between the installation cavity (103) and the curing cavity (101), a second rotating shaft (81) is arranged on the partition plate (104) in a penetrating mode, a tray (82) is arranged at the upper end of the second rotating shaft (81), the tray (82) is located in the curing cavity (101), a driving component used for driving the second rotating shaft (81) to rotate is arranged at the lower end of the second rotating shaft (81), and the driving component is located in the installation cavity (103).

4. A dust-free and oxygen-free conductive adhesive curing oven as claimed in claim 3, wherein said driving means comprises:

a first bevel gear (91), the first bevel gear (91) being connected to the second rotating shaft (81);

the output end of the second motor (92) is provided with a driving shaft (921);

and a second bevel gear (93), wherein the second bevel gear (93) is connected to the driving shaft (921), and the second bevel gear (93) is meshed with the first bevel gear (91).

5. A dust-free and oxygen-free conductive adhesive curing oven as claimed in claim 1, wherein said exhaust tube (22) and said first branch tube (24) are respectively connected to opposite side walls of said curing chamber (101).

6. A dust-free and oxygen-free conductive adhesive curing oven as claimed in claim 5, wherein a drying chamber (7) is arranged on the exhaust pipe (22), and a drying agent is arranged in the drying chamber (7).

7. A dust-free and oxygen-free conductive adhesive curing oven as claimed in claim 1, characterized in that the fourth branch pipe (43) is provided with a filter screen (431).

8. A dust-free and oxygen-free conductive adhesive curing oven as claimed in claim 1, characterized in that the side wall of the curing chamber (101) is provided with a temperature sensor (105).

9. A dust-free and oxygen-free conductive adhesive curing oven as claimed in claim 1, wherein an oxygen concentration sensor (106) is provided on the side wall of the curing chamber (101).

10. A dust-free and oxygen-free conductive adhesive curing oven as claimed in claim 1, characterized in that an opening is provided on one side of the curing chamber (101), and a sealing door (107) is provided on the opening.