Quick-release fan housing injection mold

By setting main channels and branch channels in the fan housing injection mold, injecting coolant for rapid cooling, and improving sealing through connectors and protective structures, the problem of slow heat dissipation during the fan housing injection molding process is solved, thus improving production efficiency.

CN224348332UActive Publication Date: 2026-06-12SHANGHAI YIDONG PLASTIC PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI YIDONG PLASTIC PROD CO LTD
Filing Date
2025-05-19
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

During the injection molding process of the fan housing, the natural heat dissipation speed is slow, resulting in long waiting time and making it difficult to improve production efficiency.

Method used

The design incorporates a quick-release fan housing injection mold with main and branch channels inside the lower and upper molds. Coolant is injected through the inlet for rapid cooling, and the seal is improved through connectors and protective structures to prevent coolant leakage.

🎯Benefits of technology

This technology enables rapid cooling of the fan housing injection mold, shortens molding waiting time, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224348332U_ABST
    Figure CN224348332U_ABST
Patent Text Reader

Abstract

The application discloses a quick-release fan shell injection mold, relates to the fan processing field, and comprises a lower mold and an upper mold, a first main channel is formed in the lower mold, a first branch channel is further formed in the inner side of the lower mold, the number of the first branch channels is multiple, the multiple first branch channels are uniformly arranged and are communicated with the first main channel, a second main channel is formed in the upper mold, a second branch channel is further formed in the inner side of the upper mold, the number of the second branch channels is multiple, the multiple second branch channels are uniformly arranged and are communicated with the second main channel. The application injects cooling liquid into the inside of the first main channel through the liquid inlet, the cooling liquid enters the inside of the first branch channel through the first main channel, the inside of the lower mold can be rapidly cooled, the cooling liquid also enters the inside of the second main channel through the plug-in connector, enters the inside of the second branch channel through the second main channel, and the inside of the upper mold can be rapidly cooled.
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Description

Technical Field

[0001] This application relates to the field of fan manufacturing, and in particular to injection molds for quick-release fan housings. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of designs and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates and replacements, and can create complex shapes. Injection molding is suitable for mass production and molding processes involving complex shapes.

[0003] Currently, most fan housings are manufactured using injection molding. However, because the liquefied liquid is prone to flow, the molded part can only be removed from the mold after the injection liquid cools down to a certain temperature and can maintain its shape. Currently, the process of waiting for the injection molded part to be formed mostly involves letting it stand and dissipate heat naturally. However, this method results in a slow heat dissipation rate, leading to a long waiting time and making it difficult to improve production efficiency. Utility Model Content

[0004] To address the issue that the process of waiting for injection molded parts to be formed mostly involves allowing them to stand still and dissipate heat naturally, which results in a slow heat dissipation rate and a long waiting time, making it difficult to improve production efficiency, this application provides a quick-release fan housing injection mold.

[0005] The quick-release fan housing injection mold provided in this application adopts the following technical solution:

[0006] The device includes a lower mold and an upper mold. The lower mold has a first main channel inside and a first diversion channel inside. The number of first diversion channels is multiple, and the multiple first diversion channels are evenly arranged and connected to the first main channel. The upper mold has a second main channel inside and a second diversion channel inside. The number of second diversion channels is multiple, and the multiple second diversion channels are evenly arranged and connected to the second main channel.

[0007] By adopting the above technical solution, coolant is injected into the interior of the first main channel through the inlet. The coolant then enters the interior of the first branch channel through the first main channel, which can quickly cool the interior of the lower mold.

[0008] Preferably, the lower mold has installation ports at both ends of the first main channel, and the upper mold has connection ports at both ends of the second main channel, with the installation ports and connection ports arranged vertically in correspondence.

[0009] By adopting the above technical solution, the coolant will enter the interior of the second main channel through the connector, and then enter the interior of the second branch channel through the second main channel.

[0010] Preferably, a connector is installed inside the mounting port, a protective washer is installed inside the connection port, one end of the connector is inserted into the connection port and the inner side of the protective washer, and a channel is provided in the middle of the connector.

[0011] By adopting the above technical solution, the coolant will enter the second main channel through the channel inside the connector, which facilitates the coolant entering the upper mold.

[0012] Preferably, the lower mold is equipped with a liquid inlet and a liquid outlet at both ends of the first main channel, and the liquid inlet and the liquid outlet are arranged opposite to each other.

[0013] By adopting the above technical solution, coolant is injected into the interior of the first main channel through the inlet, and coolant can be discharged through the outlet, which facilitates the circulation of coolant.

[0014] Preferably, a waterproof ring is installed on the lower mold on the outside of the connector, and a protective groove is provided on the upper mold on the outside of the connection port. A sealing gasket is installed inside the protective groove. The waterproof ring and the protective groove are positioned corresponding to each other and are matched in size. The waterproof ring can enter the interior of the protective groove.

[0015] By adopting the above technical solution, the waterproof ring can be inserted into the interior of the protective groove. The combination of the waterproof ring and the protective groove can prevent coolant from flowing out from the connection and improve the overall sealing performance.

[0016] Preferably, an outer protective ring is installed on the inner side of the lower mold, and a connecting groove is provided on the inner side of the upper mold. The position of the connecting groove corresponds vertically to the position of the outer protective ring, and the sizes are compatible.

[0017] By adopting the above technical solution, the outer protective ring enters the interior of the connecting groove, which can protect the inner mold of the injection molding process.

[0018] Preferably, the upper mold has positioning grooves at its four corners, and the lower mold has positioning posts at its four corners. The positioning posts and positioning grooves are vertically aligned and their sizes are compatible.

[0019] By adopting the above technical solution, the positioning groove and the positioning post are aligned, and the positioning post enters the interior of the positioning groove, which can ensure that the upper mold and the lower mold correspond to each other and prevent displacement.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. This application injects coolant into the interior of the first main channel through the inlet. The coolant enters the interior of the first branch channel through the first main channel, which can quickly cool the interior of the lower mold. The coolant also enters the interior of the second main channel through the connector, and then enters the interior of the second branch channel through the second main channel, which can quickly cool the interior of the upper mold.

[0022] 2. In this application, the upper mold moves downwards step by step to make the positioning groove and the positioning post correspond. The positioning post enters the interior of the positioning groove, which can ensure that the upper mold and the lower mold correspond to each other and prevent misalignment. At this time, the outer protective ring enters the interior of the connecting groove, which can protect the inner mold of the injection molding. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the quick-release fan housing injection mold according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram illustrating the main mold structure of the embodiments of this application;

[0025] Figure 3 This is a schematic diagram illustrating the main structure of the upper mold in the embodiments of this application;

[0026] Figure 4 This is a schematic diagram illustrating the overall cross-sectional structure of the embodiments of this application;

[0027] Figure 5 This is a schematic diagram illustrating the enlarged structure of part A, which is the main embodiment of this application.

[0028] Reference numerals: 1. Lower mold; 2. Upper mold; 3. First main channel; 4. First branch channel; 5. Second main channel; 6. Second branch channel; 7. Mounting port; 8. Connection port; 9. Plug; 10. Protective gasket; 11. Liquid inlet; 12. Liquid outlet; 13. Waterproof ring; 14. Protective groove; 15. Sealing gasket; 16. Connection groove; 17. Outer protective ring; 18. Positioning post; 19. Positioning groove. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0030] This application discloses a quick-release fan housing injection mold, including a lower mold 1 and an upper mold 2. The lower mold 1 has a first main channel 3 inside and a first diversion channel 4 inside. There are multiple first diversion channels 4, which are evenly arranged and connected to the first main channel 3. The upper mold 2 has a second main channel 5 inside and a second diversion channel 6 inside. There are multiple second diversion channels 6, which are evenly arranged and connected to the second main channel 5. Coolant is injected into the first main channel 3 through the liquid inlet 11. The coolant enters the first diversion channel 4 through the first main channel 3, which can quickly cool the interior of the lower mold 1. The coolant also enters the second main channel 5 through the connector 9 and then enters the second diversion channel 6 through the second main channel 5, which can quickly cool the interior of the upper mold 2.

[0031] Please refer to Figure 1 , Figure 4 and Figure 5 The lower mold 1 has installation ports 7 at both ends of the first main channel 3, and the upper mold 2 has connection ports 8 at both ends of the second main channel 5. The installation ports 7 and connection ports 8 are arranged vertically and vertically. The installation port 7 has a plug 9 installed inside, and the connection port 8 has a protective gasket 10 installed inside. One end of the plug 9 is inserted into the inner side of the connection port 8 and the protective gasket 10. The middle part of the plug 9 has a channel, and the coolant will enter the interior of the second main channel 5 through the plug 9 and then enter the interior of the second diversion channel 6 through the second main channel 5.

[0032] Please refer to Figure 1 and Figure 4 The lower mold 1 is equipped with an inlet 11 and an outlet 12 at both ends of the first main channel 3. The inlet 11 and the outlet 12 are arranged opposite to each other. Coolant is injected into the interior of the first main channel 3 through the inlet 11 and the outlet 12 can discharge the coolant, which facilitates the circulation of the coolant.

[0033] Please refer to Figures 1 to 3 A waterproof ring 13 is installed on the outer side of the connector 9 on the lower mold 1, and a protective groove 14 is provided on the outer side of the connection port 8 on the upper mold 2. A sealing gasket 15 is installed inside the protective groove 14. The waterproof ring 13 and the protective groove 14 are positioned corresponding to each other and are matched in size. The waterproof ring 13 can enter the interior of the protective groove 14. By the cooperation of the waterproof ring 13 and the protective groove 14, coolant can be prevented from flowing out from the connection, thus improving the overall sealing performance.

[0034] Please refer to Figure 2 and Figure 3The lower mold 1 has an outer protective ring 17 installed on its inner side, and the upper mold 2 has a connecting groove 16 on its inner side. The position of the connecting groove 16 corresponds vertically to the position of the outer protective ring 17 and the sizes are compatible. The upper mold 2 has positioning grooves 19 at its four corners, and the lower mold 1 has positioning pins 18 at its four corners. The positioning pins 18 and positioning grooves 19 correspond vertically to each other and the sizes are compatible. As the upper mold 2 moves downwards, the positioning grooves 19 and positioning pins 18 correspond to each other. The positioning pins 18 enter the interior of the positioning grooves 19, which can ensure that the upper mold 2 and the lower mold 1 correspond to each other and prevent displacement. At this time, the outer protective ring 17 enters the interior of the connecting groove 16, which can protect the inner mold of the injection molding.

[0035] The implementation principle of the quick-release fan housing injection mold in this application embodiment is as follows: During operation, the upper mold 2 moves downwards gradually, aligning the positioning groove 19 and the positioning post 18. The positioning post 18 enters the interior of the positioning groove 19, ensuring that the upper mold 2 and the lower mold 1 correspond to each other and preventing misalignment. At this time, the outer protective ring 17 enters the interior of the connecting groove 16, protecting the inner mold of the injection-molded part. As the upper mold 2 moves downwards, the connector 9 gradually enters the interior of the connecting port 8, while the waterproof ring 13 enters the interior of the protective groove 14. After injection molding, coolant is injected into the interior of the first main channel 3 through the liquid inlet 11. The coolant enters the interior of the first branch channel 4 through the first main channel 3, rapidly cooling the interior of the lower mold 1. The coolant also enters the interior of the second main channel 5 through the connector 9, and then enters the interior of the second branch channel 6 through the second main channel 5, rapidly cooling the interior of the upper mold 2. The waterproof ring 13 and the protective groove 14 work together to prevent coolant from flowing out of the connection, improving the overall sealing performance.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-release fan housing injection mold, characterized in that: The mold includes a lower mold (1) and an upper mold (2). The lower mold (1) has a first main channel (3) inside and a first diversion channel (4) inside. There are multiple first diversion channels (4), which are evenly arranged and connected to the first main channel (3). The upper mold (2) has a second main channel (5) inside and a second diversion channel (6) inside. There are multiple second diversion channels (6), which are evenly arranged and connected to the second main channel (5).

2. The quick-release fan housing injection mold according to claim 1, characterized in that: The lower mold (1) has installation ports (7) at both ends of the first main channel (3), and the upper mold (2) has connection ports (8) at both ends of the second main channel (5). The installation ports (7) and connection ports (8) are arranged vertically in correspondence.

3. The quick-release fan housing injection mold according to claim 2, characterized in that: The mounting port (7) is equipped with a connector (9), the connection port (8) is equipped with a protective gasket (10), one end of the connector (9) is inserted into the connection port (8) and the inner side of the protective gasket (10), and a channel is provided in the middle of the connector (9).

4. The quick-release fan housing injection mold according to claim 3, characterized in that: The lower mold (1) is equipped with an inlet (11) and an outlet (12) at both ends of the first main channel (3), and the inlet (11) and outlet (12) are arranged opposite to each other.

5. The quick-release fan housing injection mold according to claim 3, characterized in that: A waterproof ring (13) is installed on the lower mold (1) on the outside of the connector (9), and a protective groove (14) is provided on the upper mold (2) on the outside of the connection port (8). A sealing gasket (15) is installed inside the protective groove (14). The waterproof ring (13) and the protective groove (14) are in corresponding positions and are of compatible size. The waterproof ring (13) can enter the interior of the protective groove (14).

6. The quick-release fan housing injection mold according to claim 1, characterized in that: The lower mold (1) is equipped with an outer protective ring (17) on its inner side, and the upper mold (2) is provided with a connecting groove (16) on its inner side. The position of the connecting groove (16) and the position of the outer protective ring (17) are vertically corresponding and their sizes are compatible.

7. The quick-release fan housing injection mold according to claim 1, characterized in that: The upper mold (2) has positioning grooves (19) at its four corners, and the lower mold (1) has positioning posts (18) at its four corners. The positioning posts (18) and positioning grooves (19) are vertically aligned and their sizes are compatible.