Phase change material filling device
Patent Information
- Application Number
- CN202521866902.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-01
AI Technical Summary
Existing technologies make it difficult to efficiently fill microwave component housings with small filling ports with phase change materials, and sealing is difficult, which can easily lead to material overflow and waste, affecting filling efficiency and cost.
A phase change material filling device was designed, including a phase change material heating platform, a melting chamber, an adjustable filling machine, a gear pump, a short hose, a long hose, and a needle. The needle is directly inserted into the filling tube shell, eliminating the need for sealing, and a vacuum chamber is used to remove air bubbles, achieving efficient filling.
It enables efficient filling in small-sized filling ports, reduces sealing costs, improves filling efficiency, and avoids material overflow and waste.
Smart Images

Figure CN224929375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of phase change material filling, specifically a phase change material filling device. Background Technology
[0002] As systems place increasingly higher demands on the miniaturization and high power of microwave components, in order to further save internal space and improve the heat dissipation capacity of components, the component housing and heat dissipation are designed as an integrated structural component. This not only achieves the miniaturization requirements of the product but also meets the necessary conditions for rapid heat dissipation of components under high power conditions.
[0003] However, in terms of heat dissipation from the casing, due to the compact miniaturized casing structure, if heat dissipation is carried out by the casing itself, the heat transfer efficiency is extremely low, the time is long, and it is very easy to cause heat accumulation or even burn out the product.
[0004] Therefore, the current method is to fill the tube shell with phase change material. By using the phase change material with a large specific heat capacity to contact the tube shell, the phase change material changes from solid to liquid and absorbs a large amount of heat to deal with the heat released by the component in a short period of time, thus avoiding heat accumulation in the tube shell. However, phase change materials are solid waxes at room temperature, and the filling port size of microwave component shells is small, generally less than 5mm. Obviously, conventional filling equipment cannot handle the filling of microwave component shells with small filling ports. The traditional filling method directly connects the filling hose to the filling port. Due to the small size of the filling port and the different flow rates of the hose and the filling port, and in order to improve filling efficiency, the filling hose and the filling port are generally designed as a union, which increases the difficulty of sealing. If the filling port and the filling hose are not completely sealed, the phase change material is easy to overflow from the filling port during filling, causing contamination of the microwave component shell and waste of phase change material. At the same time, the sealing work is time-consuming and laborious, which can easily affect the filling efficiency. Utility Model Content
[0005] Purpose of the utility model: To provide a phase change material filling device to solve the above-mentioned problems existing in the prior art.
[0006] Technical solution: A phase change material filling device, comprising: A phase change material heating stage, a melting chamber disposed on the phase change material heating stage, and a filling section communicating with the melting chamber; The filling section includes: An adjustable filling machine, wherein the adjustable filling machine is equipped with a gear pump; A short hose, one end of which is connected to the melting chamber and the other end of which is connected to the input end of the gear pump, is provided with a flow stop clamp; A long flexible tube, one end of which is connected to the output end of the gear pump, and the other end of which is connected to a needle; The needle is compatible with the filling port of the filling tube shell; The melting chamber contains a phase change material.
[0007] This utility model completes the filling of the phase change material in the filling tube shell by designing a filling section. During filling, the phase change material is placed in the melting chamber and heated into a liquid state by the phase change material heating table. Then, the needle is inserted into the filling tube shell through the filling port. Finally, the adjustable filling machine controls the gear pump to pump the liquid phase change material into the filling tube to complete the filling work. By designing a needle at the end of the long tubing, the needle can adapt to the small-sized filling port of the filling tube shell. The needle moves the filling position from the original filling port to a point extending into the filling tube shell, avoiding docking with the filling port and eliminating the need for sealing. This prevents the phase change material from overflowing from the filling port. Since the sealing work is eliminated, the sealing element is eliminated, resulting in lower filling costs. At the same time, this application does not require sealing work; the needle is directly inserted into the filling tube shell, making the filling efficiency higher.
[0008] In a further embodiment, the filling device also includes a vacuum chamber; The phase change material heating platform and the adjustable filling machine are arranged side by side on the vacuum chamber; By designing a vacuum chamber in conjunction with a vacuum pump, the vacuum chamber can be evacuated to a predetermined vacuum value, removing air bubbles generated during the filling process and filling as much phase change material as possible. In a further embodiment, the vacuum chamber is equipped with a vacuum gauge, and a vacuum pump connected to the vacuum chamber is located on the side.
[0009] In a further embodiment, the vacuum chamber is equipped with a shell heating platform.
[0010] In a further embodiment, the filling tube is placed on the tube heating platform; By designing a heating platform for the tube shell, the filling tube shell is preheated to prevent the phase change material from solidifying during the filling process.
[0011] Beneficial effects: This utility model discloses a phase change material filling device. This utility model completes the filling of phase change material into the filling tube shell by designing a filling part. During filling, the phase change material is placed into the melting chamber and heated into a liquid state by the phase change material heating table. Then, the needle is inserted into the filling tube shell through the filling port. Finally, the adjustable filling machine controls the gear pump to pump the liquid phase change material into the filling tube to complete the filling work. By designing a needle at the end of the long tubing, the needle can adapt to the small-sized filling port of the filling tube shell. The needle moves the filling position from the original filling port to a point extending into the filling tube shell, avoiding docking with the filling port and eliminating the need for sealing. This prevents the phase change material from overflowing from the filling port. Since the sealing work is eliminated, the sealing element is eliminated, resulting in lower filling costs. At the same time, this application does not require sealing work; the needle is directly inserted into the filling tube shell, making the filling efficiency higher. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model.
[0013] Figure 2 This is a schematic diagram of the phase change material heating platform and melting chamber structure of this utility model.
[0014] Figure 3 This is a schematic diagram of the adjustable filling machine of this utility model.
[0015] Figure 4 This is a schematic diagram of the transparent vacuum chamber structure of this utility model.
[0016] The attached figures are labeled as follows: 1. Phase change material heating platform; 2. Melting chamber; 3. Short hose; 4. Flow stop clamp; 5. Adjustable filling machine; 6. Gear pump; 7. Long hose; 8. Needle; 9. Vacuum chamber; 10. Tube shell heating platform; 11. Filling tube shell; 12. Vacuum gauge; 13. Vacuum pump. Detailed Implementation
[0017] This application relates to a phase change material filling device, which will be explained in detail below through specific embodiments.
[0018] A phase change material filling device, comprising: A phase change material heating stage 1, a melting chamber 2 disposed on the phase change material heating stage 1, and a filling section communicating with the melting chamber 2; The filling section includes: The adjustable filling machine 5 is equipped with a gear pump 6. The adjustable filling machine 5 is existing technology and can be selected according to the required flow rate specifications. The short hose 3 is connected at one end to the melting chamber 2 and at the other end to the input end of the gear pump 6. The short hose 3 is equipped with a flow stop clamp 4. By designing the flow stop clamp 4, the connection between the short hose 3 and the melting chamber 2 can be cut off, thus cutting off the filling of the phase change material. The long flexible tube 7 is connected at one end to the output end of the gear pump 6 and at the other end to a needle 8; The needle 8 is adapted to the filling port of the filling tube shell 11; The melting chamber 2 contains a phase change material.
[0019] This utility model completes the filling of the phase change material in the filling tube shell 11 by designing a filling section. During filling, the phase change material is placed in the melting chamber 2, and the phase change material is heated into a liquid state by the phase change material heating table 1. Then, the needle 8 is inserted into the filling tube shell 11 through the filling port. Finally, the adjustable filling machine 5 controls the gear pump 6 to pump the liquid phase change material into the filling tube to complete the filling work. By designing a needle 8 at the end of the long flexible tube 7, the needle 8 can adapt to the small-sized filling port of the filling tube shell 11. The needle 8 moves the filling position from the original filling port to the needle 8 extending into the filling tube shell 11, avoiding docking with the filling port, eliminating the sealing work, and thus preventing the phase change material from overflowing from the filling port. Since the sealing work is eliminated, the sealing element is eliminated in terms of economic benefits, resulting in lower filling costs. At the same time, this application does not require sealing work, and the needle 8 is directly inserted into the filling tube shell 11, making the filling efficiency higher.
[0020] The filling device also includes a vacuum chamber 9; The phase change material heating platform 1 and the adjustable filling machine 5 are arranged side by side on the vacuum chamber 9; By designing the vacuum chamber 9 in conjunction with the vacuum pump 13, the vacuum chamber 9 can be evacuated to a predetermined vacuum value, removing air bubbles generated during the filling process and filling as much phase change material as possible. The vacuum chamber 9 is equipped with a vacuum gauge 12, and a vacuum pump 13 connected to the vacuum chamber 9 is located on the side.
[0021] The vacuum chamber 9 is equipped with a shell heating platform 10.
[0022] The filling tube shell 11 is placed on the tube shell heating platform 10; By designing a heating platform 10 for the tube shell, the filling tube shell 11 is preheated to prevent the phase change material from solidifying during the filling process. Both the tube heating platform 10 and the phase change material heating platform 1 are existing technologies and can be selected by those skilled in the art; they can be heating coils.
[0023] Working principle description: During filling, the phase change material is placed in the melting chamber 2, and the filling tube shell 11 is placed on the tube shell heating platform 10. The phase change material is heated into a liquid state by the phase change material heating platform 1, and the filling tube shell 11 is heated by the tube shell heating platform 10. Then, the needle 8 is inserted into the filling tube shell 11 through the filling port. The vacuum chamber 9 is evacuated to a predetermined vacuum range by the vacuum pump 13. Then, the adjustable filling machine 5 controls the gear pump 6 to pump the liquid phase change material into the filling tube. After filling is completed, the short tube 3 is cut off from the melting chamber 2 by the flow stop clamp 4, cutting off the flow of the phase change material and completing the filling work.
[0024] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.
Claims
1. A phase change material filling device, characterized in that, include: A phase change material heating stage (1), a melting chamber (2) disposed on the phase change material heating stage (1), and a filling section communicating with the melting chamber (2); The filling section includes: An adjustable filling machine (5) is provided with a gear pump (6); A short hose (3) is connected at one end to the melting chamber (2) and at the other end to the input end of the gear pump (6). A flow stop clamp (4) is provided on the short hose (3). A long flexible tube (7) is connected at one end to the output end of the gear pump (6) and at the other end to a needle (8). The needle (8) is adapted to the filling port of the filling tube shell (11).
2. The phase change material filling device according to claim 1, characterized in that: It also includes a vacuum chamber (9); The phase change material heating platform (1) and the adjustable filling machine (5) are arranged side by side on the vacuum chamber (9).
3. The phase change material filling device according to claim 2, characterized in that: The vacuum chamber (9) is equipped with a vacuum gauge (12) and a vacuum pump (13) connected to the vacuum chamber (9) is located on the side.
4. The phase change material filling device according to claim 2, characterized in that: The vacuum chamber (9) is equipped with a shell heating platform (10).
5. The phase change material filling device according to claim 4, characterized in that: The filling tube shell (11) is placed on the tube shell heating platform (10).
