Capacitor cooler

Abstract

A conveyor belt unit is in transmission connection with a rotating shaft of a driving roller through an output shaft of a motor, the driving roller and a driven roller drive a conveyor belt to operate, and the conveyor belt is tensioned on a bottom supporting frame; the heat dissipation unit comprises a heat dissipation frame connected to the bottom supporting frame and a plurality of fans arranged on the heat dissipation frame, and the fans directly face the upper surface of the conveying belt; the air guiding and conveying unit forms an air guiding channel with an inverted isosceles trapezoid-shaped cross section between the conveyor belt and the fan, and a conveying channel of the capacitor on the conveyor belt. The air guiding channel upwards communicates with an air inlet channel facing the fan, the air guiding channel downwards communicates with the guiding and conveying channel, and the air inlet channel and the guiding and conveying channel are staggered in the vertical direction. Capacitors are stably conveyed through the conveyor belt unit, fans of the heat dissipation unit evenly blow air to dissipate heat, channels are ingeniously arranged in the air guiding and conveying unit to integrate airflow, and efficient and stable cooling and curing of the capacitors are achieved.

Description

Technical Field

[0001] This utility model relates to a cooling device, and more particularly to a capacitor cooler. Background Technology

[0002] In the capacitor manufacturing industry, epoxy resin encapsulation technology is widely used. As a high-performance encapsulation material, epoxy resin provides excellent insulation, corrosion resistance, and mechanical protection for capacitors, ensuring their stability and reliability in various operating environments.

[0003] However, epoxy resin requires a cooling process to cure after encapsulation. Traditional cooling methods often have many shortcomings. For example, natural cooling is not only time-consuming, leading to low production efficiency, but also makes it difficult to precisely control the curing effect, resulting in inconsistent product quality. While rapid cooling methods with manual intervention, such as simple air cooling or water cooling, can shorten the cooling time to some extent, they are complex to operate and costly. Furthermore, uneven cooling rates can affect the curing quality of the epoxy resin, potentially adversely impacting capacitor performance. For instance, insufficiently cured epoxy resin may cause weak bonding of internal capacitor components, leading to loosening during long-term use and affecting electrical performance and lifespan; or excessive internal stress generated during curing may cause defects such as cracks in the encapsulation shell, reducing the reliability and safety of the capacitor.

[0004] Therefore, designing an efficient, stable, controllable, and economical capacitor cooler to meet the cooling and curing requirements after epoxy resin encapsulation of capacitors is of great practical significance. It will provide capacitor manufacturers with better production processes, improve the overall quality and market competitiveness of products, and promote technological progress and development in the capacitor industry. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this invention provides a capacitor cooler.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is: a capacitor cooler, characterized in that it comprises:

[0007] The conveyor belt unit is connected to the drive roller shaft via the output shaft of the motor. The drive roller and the driven roller are rotatably mounted at both ends of the bottom support frame. The drive roller and the driven roller drive the conveyor belt to rotate, and the conveyor belt is tensioned on the bottom support frame.

[0008] The heat dissipation unit includes a heat dissipation frame connected to the bottom support frame and several fans on the heat dissipation frame, with the fans facing the upper surface of the conveyor belt.

[0009] The air guiding and conveying unit forms an air guiding channel with an inverted isosceles trapezoidal cross-section between the conveyor belt and the fan, as well as a conveying channel for the capacitor on the conveyor belt; the air guiding channel is connected upward to an air inlet channel facing the fan, and the air guiding channel is connected downward to the conveying channel, with the air inlet channel and the conveying channel being vertically offset from each other.

[0010] Furthermore, the two ends of the drive roller are mounted on the bottom support frame via bearings; the bottom support frame is provided with a slide seat that is slidably mounted thereon and a locking element for fixing the slide seat, and the two ends of the driven roller are mounted on the slide seat via bearings.

[0011] Furthermore, the heat dissipation frame includes longitudinal beams and transverse beams, which together form a grid structure, with each grid structure serving as a pre-drilled hole for mounting a fan.

[0012] Furthermore, several fans are positioned at the same height and arranged in a line along the length of the conveyor belt.

[0013] Furthermore, the air guiding and conveying unit includes two L-shaped guide plates symmetrically arranged on the heat dissipation frame. The two L-shaped guide plates are connected and the butt joint line coincides with the symmetrical plane of the conveyor belt. Several air inlet channels are opened on the end face of the L-shaped guide plate near the fan, which are arranged along the length of the conveyor belt.

[0014] It also includes two triangular guide plates symmetrically arranged on the heat dissipation frame, with the two triangular guide plates spaced apart and forming a guide channel between two close end faces;

[0015] The space enclosed by the L-shaped guide plate and the triangular guide plate forms an air guide channel with an inverted isosceles trapezoidal cross-section.

[0016] This patent addresses the need for cooling and curing of capacitors after epoxy resin encapsulation by designing a novel capacitor cooler that effectively solves the shortcomings of traditional cooling methods:

[0017] I. Addressing the shortcomings of natural cooling

[0018] Traditional natural cooling is time-consuming, inefficient, and results in inconsistent product quality. This cooler uses a conveyor belt unit, with a motor-driven drive roller rotating the conveyor belt to ensure stable capacitor transport. Simultaneously, multiple fans in the heat dissipation unit are positioned directly above the conveyor belt, providing even airflow and accelerating the curing speed of the epoxy resin. This significantly reduces cooling time, improves production efficiency, and ensures consistent product quality.

[0019] II. Addressing the shortcomings of rapid cooling through manual intervention

[0020] Manually assisted rapid cooling methods are complex, costly, and the uneven cooling rate affects curing quality. This cooler's airflow guiding unit includes an inlet channel, an air guide channel, and a delivery channel. Airflow enters the air guide channel through the inlet channel and is then evenly distributed before being directed towards the capacitor through the delivery channel. This avoids direct airflow impact on the capacitor, ensuring uniform heat dissipation, reducing cooling costs, simplifying operation, and simultaneously improving cooling efficiency and capacitor curing quality, ensuring its performance and reliability. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 A three-dimensional structural diagram of the air guiding and delivery unit;

[0023] Figure 3 This is a top view of the present invention;

[0024] Figure 4 This is a side view of the air guiding and conveying unit;

[0025] Figure 5 This is a side view of the present invention;

[0026] Figure 6 This is a top view of the air guiding and conveying unit;

[0027] In the diagram: 1. Conveyor belt unit; 11. Motor; 12. Driven roller; 13. Driven roller; 14. Conveyor belt; 15. Bottom support frame; 16. Slide; 17. Locking element; 2. Heat dissipation unit; 21. Heat dissipation frame; 211. Longitudinal beam; 212. Crossbeam; 22. Fan; 3. Air guiding and conveying unit; 31. L-shaped guide plate; 311. Air inlet channel; 32. Triangular guide plate; 321. Conveying channel; 33. Air guiding channel. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] In this embodiment, Figure 1 and Figure 3 and Figure 5 The embodiment shown provides a capacitor cooler, including a conveyor belt unit 1, a heat dissipation unit 2, and an air guiding unit 3.

[0030] In conveyor unit 1, motor 11 is fixed to bottom support frame 14 via housing. The output shaft of motor 11 is connected to the rotating shaft of drive roller 12. Drive roller 12 and driven roller 13 are rotatably mounted at both ends of bottom support frame 14. Conveyor belt 15 is tensioned on bottom support frame 14. Both ends of drive roller 12 are mounted on bottom support frame 14 via bearings. Bottom support frame 14 is provided with slide block 16 slidably mounted thereon and locking member for fixing slide block 16. Slide block 16 can slide and engage with slide groove on bottom support frame 14 to adjust the position of slide block 16 relative to bottom support frame 14. The locking member is a positioning screw or positioning bolt on slide block 16. The locking force of positioning screw or the shear force of positioning bolt restricts the adjusted slide block 16. Both ends of driven roller 13 are mounted on slide block 16 via bearings. By adjusting the position of the slide 16 on the bottom support frame 14 and fixing it with locking parts, the tension of the conveyor belt 15 can be adjusted to ensure stable operation of the conveyor belt 15 and effective delivery of capacitors.

[0031] In other embodiments, the retaining device (tensioner) commonly used in belt and chain drive systems may also be used.

[0032] In the heat dissipation unit 2, the heat dissipation frame 21 is connected to the bottom support frame 14 and consists of a grid structure composed of longitudinal beams 211 and transverse beams 212. Each grid structure serves as a reserved hole for mounting fans 22, which can be fixedly mounted on the transverse beams via the side walls. Several fans 22 are positioned at the same height and arranged in a line along the length of the conveyor belt 15, facing the upper surface of the conveyor belt 15. When the capacitor is placed on the conveyor belt 15, the fans 22 can evenly blow air onto the capacitor to dissipate heat, accelerating the curing speed of the epoxy resin.

[0033] Figure 2 and Figure 4 and Figure 6The air guiding and conveying unit 3 includes two L-shaped guide plates 31 and two triangular guide plates 32 symmetrically arranged on the heat dissipation frame 21. The two L-shaped guide plates 31 are joined together, and their joint line coincides with the symmetrical plane of the conveyor belt 15. Several air inlet channels 311 are provided on the end face near the fan 22, which are arranged along the length of the conveyor belt 15. The two triangular guide plates 32 are spaced apart and form a conveying channel 321 between two adjacent end faces. The space enclosed by the L-shaped guide plates 31 and the triangular guide plates 32 forms an air guiding channel 33 with an inverted isosceles trapezoidal cross-section. The air guiding channel 33 connects upward to the air inlet channel 311 and downward to the conveying channel 321. The air inlet channel 311 and the conveying channel 321 are vertically offset from each other. This design can guide the airflow generated by the fan 22 to blow evenly onto the capacitor and make the capacitor transported stably on the conveyor belt 15, avoiding unnecessary interference from the airflow to the capacitor; note that the two L-shaped guide plates 31 and the two triangular guide plates 32 of the air guiding and conveying unit 3 can be integrally 3D printed or independent plate structures, and can be installed by fitting them onto the heat dissipation frame 21 according to the different materials.

[0034] During operation, the capacitor requiring cooling is placed on the conveyor belt 15. The motor 11 drives the drive roller 12 to rotate, causing the conveyor belt 15 to move forward, and the capacitor moves accordingly. Simultaneously, the fan 22 of the heat dissipation unit 2 starts operating, generating airflow that enters the air guide channel 33 through the air inlet channel 311 and then blows downwards evenly onto the capacitor. Due to the special shape of the air guide channel 33 and the ingenious layout of the air inlet channel 311 and the conveying channel 321, the airflow effectively covers the capacitor surface, accelerating the heat dissipation and curing of the epoxy resin. During the curing process, the capacitor is smoothly conveyed forward along the conveying channel 321, and after cooling and curing, it is removed from the end of the conveyor belt 15, achieving efficient and stable cooling of the capacitor.

[0035] The key improvement in this patent lies in the air inlet channel 311, which is located on the end face of the L-shaped guide plate 31 near the fan 22 and is positioned along the length of the conveyor belt 15. The airflow generated by the fan 22 first enters these air inlet channels 311. Since the air inlet channel 311 is connected to the air guide channel 33, the airflow flows within the air inlet channel 311 and then enters the air guide channel 33. The cross-section of the air guide channel 33 is an inverted isosceles trapezoid, a shape that effectively guides the airflow. It integrates and homogenizes the airflow entering the air inlet channel 311, gradually making the initially dispersed airflow more uniform within the air guide channel 33, preparing it for subsequent blowing onto the capacitor. The air guide channel 33 connects downwards to the conveyor channel 321, and the air inlet channel 311 and the conveyor channel 321 are vertically offset from each other. The airflow, after being processed by the air guide channel 33, enters the conveyor channel 321. This offset design avoids direct impact and turbulence when the airflow enters the conveyor channel 321. The guide channel 321 is formed by two triangular guide plates 32 spaced apart. When the airflow enters the guide channel 321, it will be blown towards the capacitor along the guide channel 321. At the same time, while guiding the airflow direction, the guide channel 321 also provides a physical channel for the capacitor to be transported on the conveyor belt 15, so that the capacitor can move forward stably along this channel.

[0036] The airflow generated by fan 22 is the power source for the entire airflow system. Fan 22 faces the upper surface of conveyor belt 15 and is arranged in a straight line along the length of conveyor belt 15 at the same height. This ensures that the generated airflow can enter each air inlet channel 311 evenly. Guided by air inlet channels 311, air guide channels 33, and conveying channels 321, the airflow from fan 22 can effectively cover the surface of the capacitor, achieving uniform heat dissipation for the capacitor. At the same time, during the capacitor transport process, these channels ensure that the airflow will not cause excessive interference to the capacitor transport, allowing the capacitor to move smoothly along the conveying channel 321.

[0037] Therefore, the air inlet channel provides an entrance for the airflow of fan 22 into the air guiding system, and multiple air inlet channels 311 are arranged along the length of conveyor belt 15 to ensure that the airflow can enter the subsequent air guiding channel 33 evenly from different positions. This uniform air intake method can avoid situations where the local airflow is too strong or too weak, giving the entire airflow system a uniform foundation from the beginning. The inverted isosceles trapezoidal cross-section of the air guiding channel can effectively integrate and homogenize the incoming airflow. It can converge and sort the airflow from multiple directions from the air inlet channel 311, making the velocity distribution and direction of the airflow more uniform after passing through the air guiding channel 33. This design can also increase the contact area between the airflow and the capacitor surface. Because the homogenized airflow can better cover all parts of the capacitor surface, thereby improving heat dissipation efficiency and accelerating the curing speed of epoxy resin. The conveying channel 321 provides a stable physical path for the capacitor to be transported on the conveyor belt 15. The capacitor can move forward smoothly under the guidance of the conveying channel 321, avoiding the capacitor's position shift or tipping caused by direct airflow impact or other external force interference. Meanwhile, the interconnected design of the conveying channel 321 and the air guiding channel 33 ensures that airflow continuously blows onto the capacitor during capacitor transport, guaranteeing the continuity of the heat dissipation process. Furthermore, the vertical misalignment of the air inlet channel 311 and the conveying channel 321 reduces the airflow resistance to capacitor transport, allowing the capacitor to complete the transport process more smoothly.

[0038] This utility model is not limited to the examples mentioned above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of this utility model shall also fall within the protection scope of this utility model.

Claims

1. A capacitor cooler, characterized in that, include: The conveyor belt unit is connected to the drive roller shaft via the output shaft of the motor. The drive roller and the driven roller are rotatably mounted at both ends of the bottom support frame. The drive roller and the driven roller drive the conveyor belt to rotate, and the conveyor belt is tensioned on the bottom support frame. The heat dissipation unit includes a heat dissipation frame connected to the bottom support frame and several fans on the heat dissipation frame, with the fans facing the upper surface of the conveyor belt. The air guiding and conveying unit forms an air guiding channel with an inverted isosceles trapezoidal cross-section between the conveyor belt and the fan, as well as a conveying channel for the capacitor on the conveyor belt; the air guiding channel is connected upward to an air inlet channel facing the fan, and the air guiding channel is connected downward to the conveying channel, with the air inlet channel and the conveying channel being vertically offset from each other.

2. The capacitor cooler according to claim 1, characterized in that: The two ends of the driving roller are mounted on the bottom support frame via bearings; the bottom support frame is provided with a slide block that is slidably mounted thereon and a locking member for fixing the slide block, and the two ends of the driven roller are mounted on the slide block via bearings.

3. The capacitor cooler according to claim 1, characterized in that: The heat dissipation frame includes longitudinal beams and transverse beams, which together form a grid structure. Each grid structure serves as a pre-drilled hole for mounting a fan.

4. The capacitor cooler according to claim 3, characterized in that: The fans are positioned at the same height and arranged in a line along the length of the conveyor belt.

5. The capacitor cooler according to claim 1 or 3, characterized in that: The air guiding and conveying unit includes two L-shaped guide plates symmetrically arranged on the heat dissipation frame. The two L-shaped guide plates are connected and the butt joint line coincides with the symmetrical plane of the conveyor belt. Several air inlet channels are opened on the end face of the L-shaped guide plate near the fan, which are arranged along the length of the conveyor belt. It also includes two triangular guide plates symmetrically arranged on the heat dissipation frame, with the two triangular guide plates spaced apart and forming a guide channel between two close end faces; The space enclosed by the L-shaped guide plate and the triangular guide plate forms the air guide channel with an inverted isosceles trapezoidal cross-section.

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