Lightweight aluminum alloy machine body housing
By setting S-shaped flow channels and guide shields on the outer wall of the engine cover and cylinder body, combined with liquid cooling and heat sinks, the problem of insufficient heat dissipation in high-load environments is solved, achieving the effects of lightweight and efficient heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO QUANLI MACHINERY MOLD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-12
AI Technical Summary
The existing engine cover has limited heat dissipation effect in high-load environments, and adding an external liquid cooling device will increase weight and affect the lightweight effect.
An S-shaped flow channel is set on the outer wall of the cylinder body, and a guide shroud is wrapped around its outer side. The guide shroud is equipped with an inlet and an outlet. Combined with heat sinks, liquid cooling is achieved using coolant. At the same time, a limiting block and a connecting plate ensure a stable connection.
Without increasing weight, it improves the heat dissipation efficiency and stability of the engine cover, ensuring normal use under high load conditions, and is easy to install with good sealing performance.
Smart Images

Figure CN224228758U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aircraft body shells, and in particular to a lightweight aluminum alloy aircraft body shell. Background Technology
[0002] The engine cover is a crucial component of automotive and aircraft engines, primarily used to protect internal engine components, ensure their proper functioning, and enhance safety. Modern engine covers increasingly utilize aluminum alloys due to their lightweight and high strength, which helps reduce overall vehicle weight and improve fuel efficiency.
[0003] In the existing technology, since the engine inevitably generates heat during use, conventional finned heat dissipation methods can only ensure the normal operation of the engine in low-load environments, and the heat dissipation effect is limited in high-load environments. Adding liquid cooling to the outside of the engine can effectively ensure the normal operation of the engine in high-load scenarios. However, the additional liquid cooling will undoubtedly increase the weight of the engine cover, affecting the lightweight design of the cover. Utility Model Content
[0004] This application provides a lightweight aluminum alloy casing that improves heat dissipation performance while ensuring the lightweight nature of the aluminum alloy casing.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A lightweight aluminum alloy fuselage shell, comprising:
[0007] The cylinder body has an installation groove on its outer wall and an S-shaped flow channel on the inner wall of the installation groove.
[0008] The flow guide is wrapped around the outside of the cylinder body. The flow guide is connected to the cylinder body by a fastening unit. The outer wall of the flow guide is provided with an inlet and an outlet. The flow guide completely covers the mounting groove, so that the inlet and outlet are respectively located at both ends of the flow channel.
[0009] Heat sinks are spaced from top to bottom on the outer wall of the shroud to improve the heat dissipation efficiency of the shroud.
[0010] Furthermore, the flow guide is mainly composed of side plates and a middle plate. There are two side plates, and each of the two opposite sides has a protrusion forming an insertion part. The middle plate has slots on both sides for accommodating the insertion parts.
[0011] Furthermore, a sealing gasket is provided on the outer side of the insertion part, and the sealing gasket fits against the side wall of the slot.
[0012] Furthermore, a positioning hole one is provided on the outer wall of the intermediate plate near the slot, a positioning hole two is provided on the insertion part corresponding to the positioning hole one, and a threaded hole is provided on the inner wall of the mounting groove corresponding to the positioning hole one. A bolt is provided in the positioning hole one, and the bolt passes through the positioning hole one, the positioning hole two and the threaded hole in sequence.
[0013] Furthermore, the fastening unit includes a limiting block and a connecting plate. The limiting block is fixedly connected in the mounting groove between the two ends of the flow channel, and the connecting plate is fixedly connected to the side of the side plate away from the middle plate. The limiting block and the connecting plate are detachably connected.
[0014] Furthermore, a sealing gasket is embedded along the perimeter of the mounting groove to abut against the flow guide.
[0015] In summary, this utility model has at least one of the following beneficial technical effects:
[0016] 1. This lightweight aluminum alloy engine cover, by setting an S-shaped flow channel on the cylinder and covering the outer wall of the cylinder with a guide shroud that completely covers the flow channel, allows coolant to be directly injected into the cylinder. This liquid cooling method enables the aluminum alloy engine cover to be used stably under high load conditions. At the same time, since the density of coolant is much lower than that of aluminum alloy, this setting of internal cooling flow channel in aluminum alloy engine cover not only does not increase the weight of aluminum alloy engine cover, but also further improves the lightweight design of aluminum alloy engine cover.
[0017] 2. This lightweight aluminum alloy casing, by setting multiple heat dissipation fins on the outer wall of the air guide, can increase the contact area between the air guide and the air, thereby further improving the heat dissipation effect of the aluminum alloy casing and making the use of the aluminum alloy casing more stable. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a structural schematic diagram of a lightweight aluminum alloy casing according to the present invention.
[0020] Figure 2 This is a schematic diagram of the rear view structure of a lightweight aluminum alloy body shell according to the present invention.
[0021] Figure 3This is an exploded view of the air deflector in a lightweight aluminum alloy body shell according to this utility model.
[0022] Figure 4 This is a schematic diagram of the cylinder body in a lightweight aluminum alloy casing according to this utility model.
[0023] Figure 5 This is a schematic diagram of the cylinder block from the right side of a lightweight aluminum alloy casing according to this utility model.
[0024] Figure 6 This is a structural diagram showing the connection position between the side plate and the middle plate in a lightweight aluminum alloy body shell according to this utility model.
[0025] In the diagram, 1. Cylinder block; 2. Draft shield; 21. Side plate; 22. Intermediate plate; 3. Heat sink; 4. Mounting slot; 5. Flow channel; 6. Fastening unit; 61. Limiting block; 62. Connecting plate; 7. Inlet; 8. Outlet; 9. Insertion part; 10. Slot; 11. Sealing gasket one; 12. Positioning hole one; 13. Positioning hole two; 14. Threaded hole; 15. Bolt; 16. Sealing gasket two. Detailed Implementation
[0026] The present invention will be further described in detail below with reference to the accompanying drawings.
[0027] Example:
[0028] Reference Figures 1-6 The present invention discloses a lightweight aluminum alloy body shell, comprising:
[0029] The cylinder body 1 has an installation groove 4 on its outer wall and an S-shaped flow channel 5 on the inner wall of the installation groove 4.
[0030] The flow guide 2 is wrapped around the outside of the cylinder body 1. The flow guide 2 is connected to the cylinder body 1 through the fastening unit 6. The outer wall of the flow guide 2 is provided with an inlet 7 and an outlet 8 respectively. The flow guide 2 completely covers the mounting groove 4, so that the inlet 7 and the outlet 8 are respectively located at both ends of the flow channel 5.
[0031] Heat sinks 3 are spaced from top to bottom on the outer wall of the shroud 2 to improve the heat dissipation efficiency of the shroud 2.
[0032] In this embodiment, observation Figure 1 It can be seen that by setting a flow guide shroud 2 on the outside of the cylinder block 1, and connecting multiple heat sinks 3 at intervals from top to bottom on the outside of the flow guide shroud 2, the aluminum alloy engine cover can dissipate heat through the heat sinks 3 during use, ensuring the stability of the aluminum alloy engine cover under low load.
[0033] Since conventional finned cooling methods can only ensure the normal operation of the engine in low-load environments, the cooling effect is limited in high-load environments. Adding liquid cooling to the outside of the engine can effectively ensure the normal operation of the engine in high-load scenarios. However, the additional liquid cooling will undoubtedly increase the weight of the engine cover, affecting the lightweight design of the cover.
[0034] Therefore, observe Figure 4 and Figure 5 It can be observed that the outer wall of the cylinder body 1 has a mounting groove 4, and the inner wall of the mounting groove 4 has an S-shaped flow channel 5, which is then combined with... Figure 1 As can be seen, the guide shield 2 is connected to the cylinder body 1 via the fastening unit 6 and completely covers the mounting groove 4. At the same time, the outer wall of the guide shield 2 is provided with a water inlet 7 and a water outlet 8, which are respectively located at both ends of the flow channel 5. When the aluminum alloy body cover is in use, it is only necessary to connect the pipes at the water inlet 7 and the water outlet 8, and then inject the coolant into the flow channel 5 through the water inlet 7. The coolant will then flow around the cylinder body 1 along the S-shaped flow channel 5 and be discharged through the water outlet 8. This can effectively improve the heat dissipation efficiency of the cylinder body 1, thereby ensuring the stability of the aluminum alloy body cover in high-load scenarios.
[0035] Meanwhile, since the density of coolant is much lower than that of aluminum alloy, this design of internal cooling channels in the aluminum alloy casing will not only not increase the weight of the aluminum alloy casing, but will also further improve the lightweight design of the aluminum alloy casing.
[0036] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the flow guide 2 is mainly composed of side plates 21 and middle plates 22. There are two side plates 21, and each of the two opposite sides has a protruding insertion part 9. The middle plates 22 have slots 10 on both sides to accommodate the insertion parts 9. The split design makes the flow guide 2 easier and more convenient to install. The flow guide 2 can completely cover the flow channel 5 to improve heat dissipation performance and increase the installation efficiency of the flow guide 2. This can effectively improve the practicality of the aluminum alloy body shell.
[0037] In a further preferred embodiment of this utility model, such as Figure 6 As shown, by providing a sealing gasket 11 on the outside of the insertion part 9, and the sealing gasket 11 fitting against the side wall of the slot 10, the flow guide 2 can maintain good sealing performance after connection, preventing coolant leakage from the connection point, thereby further improving the practicality of the aluminum alloy body cover.
[0038] In a further preferred embodiment of this utility model, such as Figure 6As shown, a positioning hole 12 is provided on the outer wall of the intermediate plate 22 near the slot 10. A positioning hole 13 is provided on the insertion part 9 corresponding to the positioning hole 12. A threaded hole 14 is provided on the inner wall of the mounting groove 4 corresponding to the positioning hole 12. A bolt 15 is provided in the positioning hole 12. The bolt 15 passes through the positioning hole 12, the positioning hole 13 and the threaded hole 14 in sequence, so that the flow guide 2 can be positioned as shown. Figure 2 The installation is more stable after completion, as shown in the status, which avoids the leakage gap caused by the loosening of the flow guide shroud 2, thereby further ensuring the stable use of the aluminum alloy body cover.
[0039] In a further preferred embodiment of this utility model, such as Figure 1 As shown, by including a limiting block 61 and a connecting plate 62 in the fastening unit 6, the limiting block 61 is fixedly connected in the mounting groove 4 between the two ends of the flow channel 5, and the connecting plate 62 is fixedly connected to the side plate 21 away from the middle plate 22. The limiting block 61 and the connecting plate 62 are detachably connected, which can improve the connection stability of the flow guide shroud 2 and make the use of the aluminum alloy body cover more stable.
[0040] In order to enable the flow guide shroud 2 to be connected to the cylinder body 1 as a whole, the connecting plate 62 can be fixedly connected by detachable connection methods such as bolts, studs and nuts, which can improve the production efficiency of aluminum alloy body shell.
[0041] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5 As shown, by embedding a sealing gasket 2 16 along the circumferential direction at the edge of the mounting groove 4, which abuts against the flow guide 2, the flow guide 2 can be securely installed. The sealing gasket 2 16 abuts against the inner wall of the flow guide 2 to achieve a seal, thereby further preventing leakage and ensuring the stability of the aluminum alloy body shell.
[0042] Working principle: When installing the aluminum alloy body cover, first place the middle plate 22 in the mounting groove 4 away from the limiting block 61. Then place the two side plates 21 on both sides of the middle plate 22 respectively. Insert the insertion part 9 into the slot 10 of the middle plate 22 to complete the simple installation of the side plate 21 and the middle plate 22. Finally, fix the side plate 21, the middle plate 22 and the cylinder 1 with bolts 15 to complete the initial installation of the guide shield 2. After the installation is completed, the connecting plate 62 on the outer wall of the guide shield 2 can be fixedly connected to the limiting block 61, so that the guide shield 2 can be completely connected to the cylinder 1.
[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A lightweight aluminum alloy casing, characterized in that, include: The cylinder body (1) has an installation groove (4) on its outer wall and an S-shaped flow channel (5) on the inner wall of the installation groove (4). The flow guide (2) is wrapped around the outside of the cylinder body (1). The flow guide (2) is connected to the cylinder body (1) by a fastening unit (6). The outer wall of the flow guide (2) is provided with an inlet (7) and an outlet (8). The flow guide (2) completely covers the mounting groove (4), so that the inlet (7) and the outlet (8) are respectively located at both ends of the flow channel (5). Heat sinks (3) are arranged at intervals from top to bottom on the outer wall of the shroud (2) to improve the heat dissipation efficiency of the shroud (2).
2. The lightweight aluminum alloy casing according to claim 1, characterized in that, The flow guide (2) is mainly composed of a side plate (21) and a middle plate (22). There are two side plates (21), and each of the two opposite sides has a protruding insertion part (9). The middle plate (22) has slots (10) on both sides for accommodating the insertion part (9).
3. The lightweight aluminum alloy casing according to claim 2, characterized in that, A sealing gasket (11) is fitted on the outer side of the insertion part (9), and the sealing gasket (11) fits against the side wall of the slot (10).
4. The lightweight aluminum alloy casing according to claim 3, characterized in that, The outer wall of the intermediate plate (22) near the slot (10) has a positioning hole 1 (12), the insertion part (9) has a positioning hole 2 (13) corresponding to the positioning hole 1 (12), the inner wall of the mounting groove (4) has a threaded hole (14) corresponding to the positioning hole 1 (12), a bolt (15) is provided in the positioning hole 1 (12), and the bolt (15) passes through the positioning hole 1 (12), the positioning hole 2 (13) and the threaded hole (14) in sequence.
5. A lightweight aluminum alloy casing according to claim 4, characterized in that, The fastening unit (6) includes a limiting block (61) and a connecting plate (62). The limiting block (61) is fixedly connected in the mounting groove (4) between the two ends of the flow channel (5). The connecting plate (62) is fixedly connected to the side of the side plate (21) away from the middle plate (22). The limiting block (61) and the connecting plate (62) are detachably connected.
6. A lightweight aluminum alloy casing according to claim 5, characterized in that, The edge of the mounting groove (4) is fitted with a sealing gasket (16) that abuts against the flow guide (2) along the circumferential direction.