Cooling structure of lubricating cold punching plate special for FPC board drilling
By designing micro-heat dissipation micro-grooves, heat dissipation fins and coolant circulation pipes on the lubricated cold punch plate, the problem of low heat dissipation efficiency during the drilling process of the FPC board is solved, rapid heat dissipation is achieved, FPC materials are protected, and drilling accuracy and overall performance are ensured.
Patent Information
- Application Number
- CN202422284621.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The lubricated cold punch plates for drilling of existing FPC boards have low heat dissipation efficiency, which leads to rapid accumulation of heat during continuous high-speed drilling, affecting the drilling accuracy and the performance and reliability of FPC materials.
A lubricated cold punch plate is designed, with a micro-heat dissipation micro-groove on the surface, a heat dissipation fin and a coolant circulation pipeline on the back, and an insulating sheath and support frame. It quickly dissipates heat by increasing the heat dissipation area, air circulation and coolant circulation, protecting the FPC material from heat damage.
Improves heat dissipation efficiency, reduces heat accumulation, ensures drilling accuracy and overall performance of the FPC board, and protects FPC materials from thermal damage.
Smart Images
Figure CN223157316U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flexible circuit board manufacturing, in particular to a cooling structure for a lubricating cold punching plate dedicated to drilling FPC boards. Background Technique
[0002] With the trend of miniaturization and light weight of electronic products, FPC boards are widely used in smart phones, tablet computers and other portable electronic devices due to their flexible and bendable characteristics. In the production and manufacturing process of FPC boards, the drilling process is one of the key steps to ensure circuit connection. To meet the requirements of high-density wiring, drilling not only requires high precision, small hole diameter, but also smooth hole walls without burrs, which directly affects the quality and reliability of products.
[0003] In the existing FPC board drilling process, a lubricating cold punching plate with lubricating function is usually used as an auxiliary tool. Although the lubricating polymer layer coated on the surface of this cold punching plate can absorb heat to a certain extent, during continuous high-speed drilling, the heat generation speed is faster than the heat dissipation speed, resulting in rapid heat accumulation in a short time. This heat accumulation phenomenon will cause the temperature of the drill bit to rise sharply, thereby affecting the drilling accuracy. Moreover, too high a temperature may also damage the physical and chemical properties of the FPC material itself, such as causing thermal deformation or thermal damage of the material, thus affecting the overall performance and reliability of the FPC board. Content of the Utility Model
[0004] The purpose of the utility model is to provide a cooling structure for a lubricating cold punching plate dedicated to drilling FPC boards, so as to solve the problem of low heat dissipation efficiency of the lubricating cold punching plate used for drilling FPC boards in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: A cooling structure for a lubricating cold punching plate dedicated to drilling FPC boards, including a lubricating cold punching plate, the surface of the lubricating cold punching plate is provided with a number of fine heat dissipation micro-grooves, the heat dissipation micro-grooves penetrate through the thickness direction of the lubricating cold punching plate, the back of the lubricating cold punching plate is provided with a number of heat dissipation fins, a heat dissipation air duct is formed between the heat dissipation fins, and a coolant circulation pipeline is arranged inside the lubricating cold punching plate, both ends of the coolant circulation pipeline are provided with interfaces located outside the lubricating cold punching plate, the edge of the lubricating cold punching plate is provided with a heat insulation sheath, the heat insulation sheath is made of a low thermal conductivity material and is closely attached to the lubricating cold punching plate, and a support frame is symmetrically arranged at the lower part of the lubricating cold punching plate, and an elastic buffer pad is arranged between the support frame and the lubricating cold punching plate.
[0006] Preferably, the cross-section of the heat dissipation micro-groove is a V-shaped structure, and the heat dissipation micro-grooves are evenly distributed on the surface of the lubricating cold punching plate.
[0007] Preferably, the heat dissipation fins are in a strip-shaped sheet structure, and each of the heat dissipation fins is provided with a plurality of microholes.
[0008] Preferably, the coolant circulation pipeline is distributed in a spiral shape, and the coolant circulation pipeline is located on the side of the lubricating cold punching plate close to the back.
[0009] Preferably, the heat-insulating jacket covers the four peripheral edges of the lubricating cold punching plate, and reinforcing ribs are provided at the four corners of the lubricating cold punching plate.
[0010] Preferably, the elastic buffer pad is made of rubber material, and positioning pins are symmetrically provided on the support frame.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the cooling structure of the lubricating cold punching plate for drilling FPC boards can improve the heat dissipation efficiency and reduce the accumulation of heat during continuous high-speed drilling, thereby avoiding the influence of overheating of the drill needle on the drilling accuracy, and protecting the FPC material from thermal damage, thereby ensuring the overall performance and reliability of the FPC board. The cooling structure of the lubricating cold punching plate for drilling FPC boards can effectively dissipate heat quickly through the design of the coolant circulation pipeline, heat dissipation fins and heat dissipation air ducts. At the same time, the use of the heat insulation jacket and the reinforcement ribs further enhances the stability and heat insulation effect of the structure, while the elastic buffer pad and the support frame made of rubber ensure the stability and vibration resistance during high-speed drilling. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the cooling structure of a lubricating cold punching plate specially used for drilling holes in FPC boards according to the utility model;
[0013] Figure 2 This is a schematic diagram of the coolant circulation pipeline structure of a cooling structure of a lubricating cold punching plate specially used for drilling holes in an FPC board according to the utility model;
[0014] Figure 3 The utility model is a schematic diagram of the heat dissipation fin structure of the cooling structure of a lubricating cold punching plate specially used for drilling holes in FPC boards.
[0015] In the figure: 1. Lubricating cold stamping plate; 2. Heat dissipation micro grooves; 3. Heat dissipation fins; 4. Heat dissipation air ducts; 5. Coolant circulation pipes; 6. Interfaces; 7. Insulation jackets; 8. Support frames; 9. Elastic buffer pads; 10. Micropores; 11. Positioning pins; 12. Reinforcement ribs. DETAILED DESCRIPTION
[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. It is obvious that the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0017] Please refer to Figures 1 - 3, the present utility model provides a technical solution: a cooling structure for a special lubricating cold punching plate for FPC board drilling, including a lubricating cold punching plate 1. The surface of the lubricating cold punching plate 1 is provided with a number of fine heat dissipation microgrooves 2. The heat dissipation microgrooves 2 penetrate through the thickness direction of the lubricating cold punching plate 1. The back of the lubricating cold punching plate 1 is provided with a number of heat dissipation fins 3. Heat dissipation air ducts 4 are formed between the heat dissipation fins 3. And a coolant circulation pipeline 5 is provided inside the lubricating cold punching plate 1. Both ends of the coolant circulation pipeline 5 are provided with interfaces 6 located outside the lubricating cold punching plate 1. An insulating sheath 7 is provided at the edge of the lubricating cold punching plate 1. The insulating sheath 7 is made of a low thermal conductivity material and is closely attached to the lubricating cold punching plate 1. And a support frame 8 is symmetrically arranged at the lower part of the lubricating cold punching plate 1. An elastic buffer pad 9 is provided between the support frame 8 and the lubricating cold punching plate 1. This structure increases the surface area in contact with air through the fine heat dissipation microgrooves 2 on the surface of the lubricating cold punching plate 1, accelerating heat conduction and dissipation. The design of the heat dissipation fins 3 and the heat dissipation air ducts 4 further enhances air circulation and accelerates heat discharge. The coolant circulation pipeline 5 is connected to an external cooling system through the interfaces 6, capable of continuously removing the heat generated inside the lubricating cold punching plate 1. The insulating sheath 7 is made of a low thermal conductivity material, reducing heat transfer to the surrounding environment. And the elastic buffer pad 9 between the support frame 8 and the lubricating cold punching plate 1 can absorb the vibration and impact generated during the drilling process. Thus, they work together to improve the heat dissipation efficiency, reduce the heat accumulation during continuous high-speed drilling, avoid the influence of drill bit overheating on the drilling accuracy, and protect the FPC material from heat damage, ensuring the overall performance and reliability of the FPC board. The cross-section of the heat dissipation microgrooves 2 is a V-shaped structure, and the heat dissipation microgrooves 2 are evenly distributed on the surface of the lubricating cold punching plate 1. This V-shaped structure of the heat dissipation microgrooves 2 can increase the contact area between the surface of the lubricating cold punching plate 1 and the outside air, promoting rapid heat conduction and dissipation. The uniform distribution of the heat dissipation microgrooves 2 on the surface of the lubricating cold punching plate 1 makes the heat dissipation of the entire plate surface more uniform, avoiding the occurrence of local overheating phenomena, thereby improving the heat dissipation efficiency. The heat dissipation fins 3 are in the shape of strip-shaped sheets, and a number of micropores 10 are provided on the heat dissipation fins 3. This strip-shaped sheet structure of the heat dissipation fins 3 can increase the heat dissipation area and improve the heat conduction efficiency;The multiple micropores 10 arranged on the heat dissipation fins 3 further enhance air circulation and promote rapid heat dissipation, thereby effectively reducing the temperature of the lubricating cold punching plate 1 during continuous high-speed drilling. The coolant circulation pipeline 5 is spirally distributed, and the coolant circulation pipeline 5 is located on the side of the lubricating cold punching plate 1 close to the back. The coolant circulation pipeline 5 with this structure and spiral distribution can ensure that the coolant flows through most areas of the lubricating cold punching plate 1, and the heat generated by the lubricating cold punching plate 1 during the drilling process is taken away by the circulation of the coolant, thereby effectively reducing the overall temperature of the lubricating cold punching plate 1. The heat insulation jacket 7 covers the four peripheral edges of the lubricating cold punching plate 1, and the four corners of the lubricating cold punching plate 1 are provided with reinforcement ribs 12. The heat insulation jacket 7 with this structure can effectively reduce the conduction of heat to the external environment and prevent heat The elastic buffer pad 9 is made of rubber material, and the support frame 8 is symmetrically provided with positioning pins 11. The elastic buffer pad 9 of this structure can absorb the vibration and impact generated by the lubricating cold punching plate 1 during the drilling process, and reduce the heat accumulation and mechanical wear caused by the vibration. The positioning pins 11 symmetrically arranged on the support frame 8 ensure the stable connection between the lubricating cold punching plate 1 and the support frame 8, and avoid the displacement or shaking of the lubricating cold punching plate 1 during high-speed drilling, thereby jointly improving the stability and heat dissipation efficiency of the entire device. ;
[0018] Working principle: When using the cooling structure of the lubricating cold punching plate specially used for drilling holes in the FPC board, firstly, connect the external cooling system through the interface 6, and the coolant starts to circulate. The coolant circulation pipe 5 takes away the heat generated by the lubricating cold punching plate 1 during the drilling process. Then, the fine heat dissipation microgrooves 2 on the surface of the lubricating cold punching plate 1 increase the surface area in contact with the air. The heat dissipation microgrooves 2 accelerate the conduction and dissipation of heat on the surface of the lubricating cold punching plate 1, and the strip-shaped heat dissipation fins 3 increase the heat dissipation area. Multiple micropores 10 enhance air circulation and promote the rapid dissipation of heat. At the same time, the heat insulation jacket 7 covers the surrounding edges of the lubricating cold punching plate 1, reducing the conduction of heat to the external environment. The reinforcement ribs 12 enhance the rigidity and stability of the overall structure. Finally, the positioning pins 11 on the support frame 8 ensure the stable connection between the lubricating cold punching plate 1 and the support frame 8, and the elastic buffer pad 9 absorbs the vibration and impact generated during the drilling process, thereby completing a series of tasks.
[0019] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. Cooling structure of a special lubricating cold punching plate for drilling FPC boards, including a lubricating cold punching plate (1), characterized in that: The surface of the lubricating cold stamping plate (1) is provided with a number of fine heat dissipation micro-grooves (2), the heat dissipation micro-grooves (2) penetrate through the thickness direction of the lubricating cold stamping plate (1), the back of the lubricating cold stamping plate (1) is provided with a number of heat dissipation fins (3), heat dissipation air ducts (4) are formed between the heat dissipation fins (3), and a coolant circulation pipeline (5) is arranged inside the lubricating cold stamping plate (1). Both ends of the coolant circulation pipeline (5) are provided with interfaces (6) located outside the lubricating cold stamping plate (1). The edge of the lubricating cold stamping plate (1) is provided with a heat insulation sheath (7). The heat insulation sheath (7) is made of a low thermal conductivity material and is closely attached to the lubricating cold stamping plate (1). And a support frame (8) is symmetrically arranged at the lower part of the lubricating cold stamping plate (1), and an elastic buffer pad (9) is arranged between the support frame (8) and the lubricating cold stamping plate (1).
2. The cooling structure of a special lubricating cold stamping plate for drilling FPC boards according to claim 1, wherein: The cross-section of the heat dissipation micro-groove (2) is a V-shaped structure, and the heat dissipation micro-grooves (2) are evenly distributed on the surface of the lubricating cold stamping plate (1).
3. The cooling structure of a special lubricating cold punching plate for drilling FPC boards according to claim 1, characterized in that: The heat dissipation fins (3) are in a strip-shaped sheet structure, and a number of micropores (10) are provided on the heat dissipation fins (3).
4. The cooling structure of a special lubricating cold punching plate for FPC board drilling according to claim 1, characterized in that: The coolant circulation pipeline (5) is spirally distributed, and the coolant circulation pipeline (5) is located on the side of the lubricating cold stamping plate (1) close to the back.
5. The cooling structure of a special lubricating cold punching plate for FPC board drilling according to claim 1, characterized in that: The heat insulation sheath (7) covers the four peripheries of the lubricating cold stamping plate (1), and reinforcing ribs (12) are provided at the four corners of the lubricating cold stamping plate (1).
6. The cooling structure of a special lubricating cold punching plate for FPC board drilling according to claim 1, characterized in that: The elastic buffer pad (9) is made of rubber material, and positioning pins (11) are symmetrically arranged on the support frame (8).