A cooling system for a flexible circuit board

Abstract

The present invention provides a flexible circuit board cooling system, which relates to the technical field of flexible circuit board cooling. It includes a base. The cross-section of the base is in a U shape, and a conveyor belt is provided inside the base. A tensioning component is provided inside the conveyor belt. A cooling seat is installed on the base, and the inside of the cooling seat is hollow. The cross-section of the cooling seat is in a U shape, and both ends of the cooling seat are respectively located above and inside the conveyor belt. An opening is provided on the cooling seat, and there are several groups of openings. Baffles are provided on both sides of the conveyor belt, and the baffles are fixedly connected to the cooling seat. An electric fan is installed between the two side baffles, and the number and position of the electric fans correspond to the openings. A heat dissipation component and a cooling component are installed on the cooling seat. By adopting the method of conveying the flexible circuit board by the conveyor belt and cooperating with the electric fan, the heat dissipation component and the cooling component, the present invention can continuously cool the flexible circuit board, so as to adapt to the continuous processing operation of the flexible circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible circuit board cooling, and particularly to a flexible circuit board cooling system. Background Art

[0002] FPC flexible circuit boards are widely used in electronic products. Wherever there is a need for flexible circuit installation or connection in electronic products such as mobile phones, laptops, PDAs, digital cameras, etc., FPC flexible circuit boards are indispensable. During the production of FPC, it is necessary to position and paste the required functional electronic components on a single-layer or multi-layer printed circuit board, and the pasting often needs to be carried out under a set temperature.

[0003] Therefore, the processed flexible circuit board needs to be cooled. However, in the prior art, usually, workers place each processed flexible circuit board on the plane of the cooling frame. Due to the need for workers to operate, the overall labor intensity is relatively large. At the same time, not every flexible circuit board is processed at the same time, and there is a certain continuity. Therefore, during the cooling process, generally, it will wait until all the flexible circuit boards in one layer of the cooling frame are cooled before further storage, which thus affects the overall processing efficiency. Moreover, as the number of processed flexible circuit boards increases, more cooling frames will be set, occupying more space, and it cannot well adapt to the continuous processing of flexible circuit boards. Therefore, the present invention proposes a flexible circuit board cooling system to solve the problems existing in the prior art. Summary of the Invention

[0004] Aiming at the above problems, the purpose of the present invention is to propose a flexible circuit board cooling system, which has the advantage of continuous cooling and can solve the problems in the prior art.

[0005] To achieve the purpose of the present invention, the present invention is realized through the following technical solutions: A flexible circuit board cooling system includes a base. The cross-section of the base is in a U shape, and a conveyor belt is provided inside the base. A tensioning component is provided inside the conveyor belt. A cooling seat is installed on the base, and the inside of the cooling seat is hollow. The cross-section of the cooling seat is in a U shape, and both ends of the cooling seat are respectively located above and inside the conveyor belt. The cooling seat is provided with openings, and there are several groups of openings. Baffles are provided on both sides of the conveyor belt, and the baffles are fixedly connected to the cooling seat. Electric fans are installed between the two baffles, and the number and positions of the electric fans correspond to the openings. A heat dissipation component and a cooling component are installed on the cooling seat.

[0006] A further improvement is that the tensioning assembly includes two groups of symmetrically arranged mounting frames, a tensioning roller is mounted on the mounting frame through a bearing, and the tensioning roller is in contact with the conveyor belt, an elastic telescopic part is mounted on one side of the mounting frame, and the elastic telescopic part is provided in several groups, and the several groups of elastic telescopic parts are connected to the base through connecting columns.

[0007] A further improvement is that a guide opening is provided on the inner side of the baffle, a guide cavity is formed between the guide opening and the conveyor belt, the inner side of the guide opening is arc-shaped, an arc-shaped protrusion structure is provided on the baffle, and the arc-shaped protrusion structure is located above the conveyor belt.

[0008] A further improvement is that the cooling assembly includes two groups of symmetrically arranged water delivery seats, water cooling pipes are installed between the two groups of water delivery seats, and several groups of water cooling pipes are provided, a water storage tank is installed on one side of the base, a cooling water circulation pump is installed on the water storage tank, and both ends of the cooling water circulation pump are respectively connected to one group of water delivery seats and the water storage tank through pipes, and the other group of water delivery seats is connected to the water storage tank through pipes.

[0009] A further improvement is that the heat dissipation component includes a heat conducting plate, which is connected to a cooling seat, and cooling fins are installed on both upper and lower sides of the heat conducting plate, and the cooling fins are provided in several groups, and the cooling fins on the lower side pass through the cooling seat and are located on the inner side of the cooling seat.

[0010] A further improvement is that partitions are provided on both sides of the electric fan, and the outer sides of the partitions are connected to the cooling seat and the baffle.

[0011] A further improvement is that cooling water is provided in both the water cooling pipe and the water storage tank, and the direction of the cooling water in the water cooling pipe is opposite to the moving direction of the conveyor belt.

[0012] A further improvement is that a dustproof net is installed on the inner side of the opening.

[0013] A further improvement is that the wind direction of the electric fan is upward.

[0014] A further improvement is that a driving roller is provided on the inner side of the conveyor belt, and three groups of driving rollers are provided, the shafts of the three groups of driving rollers are connected to the base through bearings, and the driving rollers are driven by motors.

[0015] The beneficial effects of the present invention are as follows: the flexible circuit board cooling system adopts a conveyor belt to transport the flexible circuit board, and cooperates with an electric fan, a heat dissipation component and a cooling component to continuously cool the flexible circuit board, thereby being able to adapt to continuous flexible circuit board processing operations, and further being able to effectively reduce the number of cooling frames, reduce the space occupied by the equipment, reduce the company's investment costs, and bring economic benefits to the company. Secondly, through the different speeds of the electric fan, the device forms a segmented cooling method in the process of cooling the flexible circuit board, thereby avoiding the situation where the performance of the flexible circuit board is affected by excessive cooling, and providing a layer of guarantee for the quality of the flexible circuit board after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a front view structural schematic diagram of the present invention.

[0018] Figure 2 It is a side view schematic diagram of the distribution of the cooling seat and the water storage tank of the present invention.

[0019] Figure 3 It is a side view structural schematic diagram of the distribution relationship between the cooling seat and the conveyor belt of the present invention.

[0020] Figure 4 It is a front view structural schematic diagram of the driving roller distribution of the present invention.

[0021] Figure 5 It is a front view schematic diagram of the distribution relationship between the baffle and the conveyor belt of the present invention.

[0022] Among them: 1. base; 2. conveyor belt; 3. cooling seat; 4. opening; 5. baffle; 6. electric fan; 7. mounting frame; 8. tensioning roller; 9. elastic telescopic member; 10. connecting column; 11. guide port; 12. guide cavity; 13. arc-shaped raised structure; 14. water delivery seat; 15. water cooling pipe; 16. water storage tank; 17. cooling water circulation pump; 18. heat conduction plate; 19. heat dissipation fins; 20. partition; 21. dustproof net; 22. driving roller. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0024] As shown in Figure 1-Figure 5 the figure, in this embodiment, a flexible circuit board cooling system is proposed, which includes a base 1. The cross-section of the base 1 is in a U shape, so a notch is formed on the base 1. The upper side and the front and rear sides (taking Figure 1 the perspective as a reference) of the notch are all communicated with the outside. And a conveyor belt 2 is arranged inside the base 1. A driving roller 22 is arranged inside the conveyor belt 2, and there are three groups of driving rollers 22. The shafts of the three groups of driving rollers 22 are all connected to the base 1 through bearings. The driving roller 22 is driven by a motor (the motor is not shown in the figure. The motor is located outside the base 1 and is connected to the base 1 through a bracket). As Figure 3 shown, two groups of driving rollers 22 are horizontally arranged, and the other group of driving rollers 22 is located below the two groups of driving rollers 22. Thus, the space inside the conveyor belt 2 is opened up, which is convenient for the subsequent entry of the cooling seat 3. At the same time, in order to maintain the tension of the conveyor belt 2 and avoid situations such as the conveyor belt 2 suddenly being stressed too much and breaking, a tensioning component is arranged inside the conveyor belt 2.

[0025] As Figure 3 shown, the tensioning component includes two sets of mounting frames 7 arranged symmetrically. A tensioning roller 8 is mounted on the mounting frame 7 through a bearing, and the tensioning roller 8 is in contact with the conveyor belt 2. An elastic telescopic member 9 is mounted on one side of the mounting frame 7, and there are several groups of elastic telescopic members 9. In this embodiment, each group of mounting frames 7 corresponds to two groups of elastic telescopic members 9. The elastic telescopic member 9 is composed of a telescopic member and a spring, and it has the effects of telescoping and elasticity. The elastic telescopic members 9 are all connected to the base 1 through connecting columns 10. That is, in this embodiment, two sets of connecting columns 10 arranged symmetrically are mounted inside the base 1, and two groups of elastic telescopic members 9 are mounted on each group of connecting columns 10. In this device, the upper part of the conveyor belt 2 is within the stress range. Normally, the conveyor belt 2 works normally. When an accident occurs, resulting in an increase in the force on the upper part of the conveyor belt 2 or when it is impacted, at this time, the upper part of the conveyor belt 2 collapses, and the parts on both sides are tightened. The elastic telescopic member 9 contracts, so as to play a certain buffering role. And compared with the situation where the tensioning roller 8 is not provided, in order to ensure the contact between the conveyor belt 2 and the driving roller 22, the length of the conveyor belt 2 itself will be shortened. Then when the force on the upper part of the conveyor belt 2 is relatively large, the stressed part of the conveyor belt 2 will be stretched, thus increasing the risk of its fracture.

[0026] A cooling seat 3 is mounted on the base 1, and the inside of the cooling seat 3 is hollow, which is convenient for the circulation of air. At the same time, the cross-section of the cooling seat 3 is in a U shape, that is, as Figure 1 shown, the upper part of the conveyor belt 2 is located inside the cooling seat 3, that is, the two ends of the cooling seat 3 are respectively located above and inside the conveyor belt 2.

[0027] The cooling seat 3 is provided with an opening 4, and the opening 4 is provided with several groups. In the present embodiment, a total of six groups of openings 4 are provided, which are evenly distributed on the upper and lower sides of the cooling seat 3, and are symmetrically arranged up and down. A dustproof net 21 is installed on the inner side of the opening 4, baffles 5 are provided on both sides of the conveyor belt 2, and the upper and lower ends of the baffles 5 are fixedly connected to the cooling seat 3, and electric fans 6 are installed between the baffles 5 on both sides, and the number and positions of the electric fans 6 correspond to the openings 4. In the present embodiment, the corresponding method is half of the total number of openings 4, that is, the electric fans 6 are provided with three groups, and the wind direction of the electric fans 6 is upward, that is, it blows the air below upward, and at the same time Figure 3 As shown, partitions 20 are provided on both sides of the electric fan 6, and the outer sides of the partitions 20 are connected to the cooling seat 3 and the baffle 5. Under the action of the partitions 20, multiple groups of electric fans 6 are separated.

[0028] like Figure 5 As shown, a guide port 11 is provided on the inner side of the baffle 5, that is, the shape of the baffle 5 itself makes a cover plate, and a guide cavity 12 is formed between the guide port 11 and the conveyor belt 2, part of the conveyor belt 2 is located in the guide port 11, and the guide cavity 12 is the route through which the air passes, and the inner side of the guide port 11 is arranged in an arc shape, and an arc-shaped protruding structure 13 is provided on the baffle 5, and the arc-shaped protruding structure 13 is located above the conveyor belt 2 and faces the conveyor belt 2. In this embodiment, the arc-shaped protruding structure 13 plays a guiding role in the process of air passing through, so that the air can better contact with the passing flexible circuit board and take away the heat.

[0029] A heat dissipation component and a cooling component are installed on the cooling seat 3, wherein the heat dissipation component includes a heat conducting plate 18, the heat conducting plate 18 is connected to the cooling seat 3, and heat dissipation fins 19 are installed on the upper and lower sides of the heat conducting plate 18, and the heat dissipation fins 19 are provided with a plurality of groups, and the lower heat dissipation fins 19 pass through the cooling seat 3 and are located on the inner side of the cooling seat 3. When hot air enters the upper part of the cooling seat 3, it first exchanges heat with the external air through the cooperation of the heat dissipation fins 19 and the heat conducting plate 18, and then passes through the subsequent cooling component.

[0030] The cooling assembly includes two groups of symmetrically arranged water delivery seats 14, which are arranged on the cooling seat 3. A water cooling pipe 15 is installed between the two groups of water delivery seats 14, and the water cooling pipe 15 is provided with a plurality of groups. In this embodiment, eight groups of water cooling pipes 15 are provided, and both ends of the water cooling pipe 15 are connected to the inner cavity of the water delivery seats 14 on both sides. Correspondingly, a water storage tank 16 is installed on one side of the base 1, and a cooling water circulation pump 17 is installed on the water storage tank 16. The two ends of the cooling water circulation pump 17 are respectively connected to one group of water delivery seats 14 and the water storage tank 16 through pipelines, and the other group of water delivery seats 14 is connected to the inner cavity of the water delivery seats 14 through pipelines. The pipeline is connected to the water storage tank 16. Cooling water is provided in the water cooling pipe 15 and the water storage tank 16. The direction of the cooling water in the water cooling pipe 15 is opposite to the moving direction of the conveyor belt 2. Therefore, when working, the cooling water circulation pump 17 is started to make the cooling water in the water storage tank 16 circulate in the water cooling pipe 15, and then further exchange heat with the incoming air to cool the air, thereby obtaining cold air, which then enters the opening 4 under the conveyor belt 2, and then contacts the flexible circuit board, thereby forming a virtuous cycle to cool the flexible circuit board.

[0031] In this embodiment, the rotation speed of the electric fan 6 can be controlled by a corresponding controller. Therefore, through the different rotation speeds of the electric fan 6, the device forms a segmented cooling method in the process of cooling the flexible circuit board, thereby avoiding the situation where the performance of the flexible circuit board is affected by excessive cooling, and providing a layer of protection for the quality of the flexible circuit board after processing.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flexible circuit board cooling system, comprising a base (1), characterized in that: The cross-section of the base (1) is U-shaped, and a conveyor belt (2) is provided inside the base (1). A tensioning assembly is provided inside the conveyor belt (2). A cooling base (3) is installed on the base (1), and the inside of the cooling base (3) is hollow. The cross-section of the cooling base (3) is U-shaped, and both ends of the cooling base (3) are respectively located above and inside the conveyor belt (2). An opening (4) is provided on the cooling base (3), and there are several groups of the openings (4). Baffles (5) are provided on both sides of the conveyor belt (2), and the baffles (5) are fixedly connected to the cooling base (3). An electric fan (6) is installed between the two baffles (5), and the number and position of the electric fans (6) correspond to those of the openings (4). A heat dissipation assembly and a cooling assembly are installed on the cooling base (3). A guiding port (11) is provided inside the baffle (5), and a guiding cavity (12) is formed between the guiding port (11) and the conveyor belt (2). The inside of the guiding port (11) is arc-shaped. An arc-shaped protruding structure (13) is provided on the baffle (5), and the arc-shaped protruding structure (13) is located above the conveyor belt (2). The air direction of the electric fan (6) is upward.

2. A flexible circuit board cooling system according to claim 1, characterized in that: The tensioning assembly includes two sets of mounting brackets (7) arranged symmetrically. A tensioning roller (8) is installed on the mounting bracket (7) through a bearing, and the tensioning roller (8) contacts the conveyor belt (2). An elastic telescopic member (9) is installed on one side of the mounting bracket (7), and there are several groups of the elastic telescopic members (9). All the several groups of elastic telescopic members (9) are connected to the base (1) through connecting columns (10).

3. A flexible circuit board cooling system according to claim 1, characterized in that: The cooling assembly includes two sets of water delivery seats (14) arranged symmetrically. A water cooling pipe (15) is installed between the two sets of water delivery seats (14), and there are several groups of the water cooling pipes (15). A water storage tank (16) is installed on one side of the base (1). A cooling water circulation pump (17) is installed on the water storage tank (16). Both ends of the cooling water circulation pump (17) are respectively connected to a set of water delivery seat (14) and the water storage tank (16) through pipes. The other set of water delivery seat (14) is connected to the water storage tank (16) through a pipe.

4. A flexible circuit board cooling system according to claim 1, characterized in that: The heat dissipation assembly includes a heat conducting plate (18), and the heat conducting plate (18) is connected to the cooling base (3). Heat dissipation fins (19) are installed on both the upper and lower sides of the heat conducting plate (18), and there are several groups of the heat dissipation fins (19). The lower heat dissipation fins (19) pass through the cooling base (3) and are located inside the cooling base (3).

5. A flexible circuit board cooling system according to claim 1, characterized in that: Partition plates (20) are provided on both sides of the electric fan (6), and the outer sides of the partition plates (20) are connected to the cooling base (3) and the baffle (5).

6. A cooling system for a flexible circuit board according to claim 3, characterized in that: Cooling water is provided in both the water cooling pipe (15) and the water storage tank (16), and the flow direction of the cooling water in the water cooling pipe (15) is opposite to the moving direction of the conveyor belt (2).

7. A cooling system for a flexible circuit board according to claim 1, characterized in that: A dust-proof net (21) is installed inside the opening (4).

8. A cooling system for a flexible circuit board according to claim 1, characterized in that: A driving roller (22) is provided on the inner side of the conveyor belt (2), and three groups of driving rollers (22) are provided. The shafts of the three groups of driving rollers (22) are connected to the base (1) through bearings, and the driving rollers (22) are driven by a motor.

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