Waterproof cover and cooling fan
By incorporating an annular gap between the cap and the cylinder, as well as water-blocking ribs, the problem of the complex structure of the waterproof cover making it difficult to balance waterproofing and ventilation was solved, achieving a balance between waterproofing and ventilation and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN QYSEA TECH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-14
AI Technical Summary
Existing waterproof cover designs struggle to balance waterproofing and ventilation, resulting in complex structures and high costs.
Design a waterproof cover, including a cap and a cylinder. The cap is connected to the top of the cylinder. The cap has an annular gap around the cylinder and communicates with the ventilation window. The side wall is provided with water-blocking ribs to prevent water from entering. The ventilation window exchanges gas with the outside.
It achieves good ventilation through a simple structure while ensuring waterproof performance, thus reducing costs.
Smart Images
Figure CN224496851U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of waterproof components, and in particular to a waterproof cover and a cooling fan. Background Technology
[0002] Waterproof covers are widely used in electronic devices (such as sensors, cooling fans, and outdoor instruments), automotive parts (such as headlights and battery compartments), and outdoor products (such as sports water bottles and camping equipment). Their core function is to prevent liquid intrusion while allowing internal gases to exchange with the outside environment to balance pressure (such as increased air pressure due to device heating) or to meet specific ventilation needs (such as explosion-proof venting of battery compartments).
[0003] In existing technologies, the design of waterproof covers often faces the problem of balancing waterproof and ventilation performance. The structural design that achieves both waterproof and ventilation is also quite complex. Therefore, there is an urgent need for a waterproof cover design that is simple in structure and can meet the requirements of both waterproof and ventilation, so as to meet the application needs of low-cost waterproof covers. Utility Model Content
[0004] This application mainly provides a waterproof cover and a cooling fan to solve the problem that the waterproof cover is difficult to keep low-cost due to its complex structure.
[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is to provide a waterproof cover. The waterproof cover includes a cap and a cylindrical body. The top end of the cylindrical body is connected to the top wall of the cap. The cylindrical body is provided with at least one ventilation window. The side wall of the cap surrounds the cylindrical body and forms an annular gap with the cylindrical body. The annular gap communicates with the ventilation window. The side wall of the cap covers the ventilation window.
[0006] In some embodiments, the sidewall of the cap is provided with at least one first water-blocking rib on the side facing the cylinder. The first water-blocking rib is arranged in a ring around the circumference of the sidewall of the cap. The first water-blocking rib is used to prevent external moisture from entering the ventilation window through the annular gap. There is a first gap between the first water-blocking rib and the cylinder.
[0007] In some embodiments, the cylinder body is provided with at least one second water-blocking rib on the side wall facing the cap. The second water-blocking rib is arranged in a ring around the circumference of the cylinder body. The second water-blocking rib is used to block external moisture from entering the ventilation window through the annular gap. There is a second gap between the second water-blocking rib and the side wall of the cap.
[0008] In some embodiments, the sidewall of the cap is provided with at least one first water-blocking rib on the side facing the cylinder, and the sidewall of the cylinder facing the cap is provided with at least one second water-blocking rib, the first water-blocking rib and the second water-blocking rib being staggered within the annular gap.
[0009] In some embodiments, the ventilation window on the cylinder is disposed near the top wall, and the end of the ventilation window away from the top wall of the cap and the lower edge of the side wall of the cylinder corresponding to the cap are provided with the second water-blocking ribs, and the side wall of the cap is provided with the first water-blocking ribs in the portion between the two second water-blocking ribs.
[0010] In some embodiments, the first water-blocking rib and the second water-blocking rib overlap in the extending direction of the cylinder.
[0011] In some embodiments, the first water-blocking rib is provided with a first flow-guiding inclined surface, which is used to guide water flow to the first gap between the first water-blocking rib and the cylinder for discharge.
[0012] The second water-blocking rib is provided with a second flow-guiding slope, which is used to guide the water flow to the second gap between the second water-blocking rib and the side wall of the cap for discharge.
[0013] In some embodiments, the inner wall surface of the cylinder is provided with internal threads; or
[0014] The bottom end of the cylinder away from the cap is connected to a mounting cover plate, and the mounting cover plate is provided with mounting holes for fastener connection.
[0015] In some embodiments, the cap and the cylinder are integrally formed; or
[0016] The cap and the cylinder are detachably connected by a snap-fit structure, or the cap and the cylinder are detachably connected by a threaded structure.
[0017] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a cooling fan. The cooling fan includes the waterproof cover as described above.
[0018] The beneficial effects of this application are as follows: Unlike the prior art, this application discloses a waterproof cover and a cooling fan. By covering the top of the cylinder and the ventilation window with a cap, when the waterproof cover is in a water spray scenario, water droplets will slide off along the outer surface of the top and side walls under the action of gravity. Due to the protection of the cap, water can be prevented from entering the ventilation window and the cylinder. At the same time, through the ventilation window and annular gap set on the cylinder, gas exchange can be carried out between the inside of the cylinder and the outside. Therefore, the waterproof cover provided by this application achieves good ventilation while ensuring waterproof performance through a simple structural design, and its simple structure helps to reduce costs. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the waterproof cover provided in this application;
[0021] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the waterproof cover along the AA direction. Detailed Implementation
[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0023] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.
[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0025] This application provides a waterproof cover 100, see reference. Figure 1 and Figure 2 , Figure 1This is a structural schematic diagram of an embodiment of the waterproof cover provided in this application. Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the waterproof cover along the AA direction.
[0026] The waterproof cover 100 includes a cap 10 and a cylindrical body 20. The top of the cylindrical body 20 is connected to the top wall 11 of the cap 10. The cylindrical body 20 is provided with at least one ventilation window 201. The side wall 12 of the cap 10 is arranged around the cylindrical body 20 and forms an annular gap 202 between it and the cylindrical body 20. The annular gap 202 communicates with the ventilation window 201. The ventilation window 201 allows ventilation between the inside of the cylindrical body 20 and the outside through the annular gap 202. The side wall 12 of the cap 10 covers the ventilation window 201.
[0027] The waterproof cover 100 serves both waterproofing and ventilation purposes, preventing water from entering the cylinder 20 while allowing air circulation between the inside of the cylinder 20 and the outside. The cap 10 covers the top of the cylinder 20 and the ventilation window 201. When exposed to water, water droplets will slide off along the outer surfaces of the top wall 11 and side wall 12 under gravity. The cap 10's protection prevents water from entering the ventilation window 201 and the cylinder 20. Simultaneously, the ventilation window 201 and annular gap 202 on the cylinder 20 allow for gas exchange between the inside of the cylinder 20 and the outside, thus achieving good ventilation while ensuring waterproofing performance.
[0028] Specifically, the sidewall 12 of the cap 10 surrounds its top wall 11 and forms a receiving cavity; the cylinder 20 is a cylindrical structure, with its top end extending into the receiving cavity of the cap 10 and connecting with the top wall 11, thereby covering the top of the cylinder 20 and preventing moisture from entering; the sidewall 12 surrounds and blocks the ventilation window 201 of the cylinder 20, so that when moisture comes from the outer periphery of the cylinder 20 or slides down from the outer wall surface of the top wall 11, it will be effectively blocked by the sidewall 12 and guided to the outside, thereby preventing moisture from directly entering the ventilation window 201.
[0029] In this embodiment, the ventilation window 201 on the cylinder 20 is located near the top wall 11 to increase the distance between the ventilation window 201 and the end of the side wall 12 away from the top wall 11, thereby further reducing the risk of moisture entering the cylinder 20 through the annular gap 202 and the ventilation window 201. At the same time, the side wall 12 can also provide a more reliable shielding effect for the ventilation window 201.
[0030] The number of ventilation windows 201 can be one, two, three, four, or five, or more. When there are multiple ventilation windows 201, the multiple ventilation windows 201 are arranged at intervals along the circumference of the cylinder 20, which can make the ventilation more uniform and efficient.
[0031] The side wall 12 of the cap 10 is provided with a first water-blocking rib 13 on the side facing the cylinder 20. The first water-blocking rib 13 is arranged in a ring around the side wall 12 of the cap 10. The first water-blocking rib 13 is used to block external moisture from entering the ventilation window 201 through the annular gap 202. There is a first gap 203 between the first water-blocking rib 13 and the cylinder 20.
[0032] The first water-blocking rib 13 is integrally formed with the side wall 12 and extends towards the cylinder 20 to form a water-blocking barrier to prevent splashing water from entering the ventilation window 201 through the annular gap 202. The number of the first water-blocking rib 13 is at least one; when the number of the first water-blocking rib 13 is greater than or equal to two, the first water-blocking ribs 13 are spaced apart along the extension direction of the side wall 12 to form a multi-layer water-blocking barrier, further enhancing the water-blocking effect.
[0033] Because of the presence of the first water-blocking rib 13, the water entering the annular gap 202 is effectively blocked, while the ventilation window 201 can still ventilate with the outside through the annular gap 202 and the first gap 203.
[0034] The cylinder 20 is provided with a second water-blocking rib 22 on the side wall 12 facing the cap 10. The second water-blocking rib 22 is arranged in a ring along the circumference of the cylinder 10. The second water-blocking rib 22 is used to block external moisture from entering the ventilation window 201 through the annular gap 202. There is a second gap 204 between the second water-blocking rib 22 and the side wall 12 of the cap 10.
[0035] The second water-blocking rib 22 is integrally formed with the cylinder 20 and extends toward the side wall 12 of the cap 10 to form another water-blocking barrier, further preventing splashed water from entering the ventilation window 201 through the annular gap 202. The number of the second water-blocking rib 22 is at least one; when the number of the second water-blocking rib 22 is greater than or equal to two, each second water-blocking rib 22 is spaced apart along the extension direction of the cylinder 20 to form a multi-layer water-blocking barrier, further enhancing the waterproof effect.
[0036] The presence of the second water-blocking rib 22 effectively intercepts the water entering the annular gap 202, while the ventilation window 201 can still ventilate with the outside through the annular gap 202 and the second gap 204.
[0037] Optionally, the annular gap 202 may contain only the first water-blocking rib 13, only the second water-blocking rib 22, or both, to meet different levels of waterproofing requirements. When both the first and second water-blocking ribs 13 and 22 are present, they are staggered within the annular gap 202, forming multiple water-blocking barriers. This effectively improves waterproofing performance and significantly reduces the risk of moisture entering the ventilation window 201 through the annular gap 202.
[0038] In this embodiment, the first water-blocking rib 13 and the second water-blocking rib 22 coexist. The second water-blocking rib 22 and the first water-blocking rib 13 are staggered in the annular gap 202 to increase the path length and resistance of water entering the ventilation window 201, thereby further improving the waterproof effect.
[0039] Specifically, the first water-blocking rib 13 extends from the side wall 12 of the cap 10 toward the cylinder 20, while the second water-blocking rib 22 extends from the cylinder 20 toward the side wall 12 of the cap 10. The first water-blocking rib 13 and the second water-blocking rib 22 are arranged alternately in the annular gap 202 and do not contact each other, so as to form a labyrinthine waterproof structure. This makes water need to go through multiple turns in the annular gap 202 before it can approach the ventilation window 201, thereby greatly reducing the possibility of water directly entering the ventilation window 201.
[0040] This staggered arrangement forces moisture seeking to reach the ventilation window 201 through the annular gap 202 to change its flow direction multiple times, effectively reducing the penetration ability of moisture through the annular gap 202. Simultaneously, the presence of the first gap 203 and the second gap 204 ensures that the ventilation path between the ventilation window 201 and the outside is not completely blocked, guaranteeing that the ventilation function remains unaffected.
[0041] Furthermore, the ventilation window 201 is provided with a second water-blocking rib 22 at the end of the top wall 11 away from the cap 10 and at the lower edge of the side wall 12 of the cylinder body 20 corresponding to the cap 10, and the side wall 12 of the cap 10 is provided with a first water-blocking rib 13 corresponding to the part between the two second water-blocking ribs 22.
[0042] The second water-blocking rib 22 provided at the end of the ventilation window 201 away from the top wall 11 serves as the last water-blocking barrier in front of the ventilation window 201. It can prevent water from entering the cylinder 20 from the ventilation window 201 to the greatest extent. Because the second water-blocking rib 22 is provided at this position, it can prevent water from flowing directly towards the ventilation window 201. At the same time, even if water passes through the second gap 204 formed between the second water-blocking rib 22 and the side wall 12, the splashed water will flow towards the side wall 12 and away from the ventilation window 201. Finally, the water flows down along the side wall 12 and will not enter the ventilation window 201.
[0043] The second water-blocking rib 22, located at the lower edge of the side wall 12 of the cap 10 corresponding to the cylinder 20, serves as the first water-blocking barrier before the annular gap 202. This effectively blocks water before it enters the annular gap 202, reducing the likelihood of water entering. Simultaneously, the first water-blocking rib 13 on the side wall 12 of the cap, positioned between the two second water-blocking ribs 22, further restricts the flow path of water within the annular gap 202, forcing water to pass through multiple barriers and undergo multiple detours before reaching the ventilation window 201. This multi-layered water-blocking structure not only enhances the reliability of waterproofing but also effectively avoids the problem of reduced waterproofing performance due to the failure of a single water-blocking structure.
[0044] Furthermore, the first water-blocking rib 13 and the second water-blocking rib 22 overlap in the extending direction of the cylinder 20, thereby eliminating the possibility of water directly passing through the annular gap 202 to the ventilation window 201. This means that water must pass through multiple bends in the annular gap 202 to approach the ventilation window 201, which greatly reduces the risk of water directly penetrating the annular gap 202 and entering the ventilation window 201.
[0045] Furthermore, the first water-blocking rib 13 is provided with a first guide slope 132, which is used to guide the water flow to the first gap 203 between the first water-blocking rib 13 and the cylinder 30 for discharge; the second water-blocking rib 22 is provided with a second guide slope 222, which is used to guide the water flow to the second gap 204 between the second water-blocking rib 22 and the side wall 12 of the cap 10 for discharge, so that the water accumulated on the first water-blocking rib 13 and the second water-blocking rib 22 can be effectively guided out, avoiding the accumulation of water in the annular gap 202.
[0046] Optionally, the inner wall of the cylinder 20 is provided with an internal thread, so that it can be screwed onto a cooling fan or other device, so that the device can be ventilated from the outside while also having a good waterproof function.
[0047] Optionally, a mounting cover plate 30 is connected to the bottom end of the cylinder 20 away from the cap 10. The mounting cover plate 30 is provided with mounting holes for fastener connection. By using fasteners to connect the mounting cover plate 30 to the cooling fan or other devices, the waterproof cover 100 can be securely installed in the required position, so that the device can maintain ventilation with the outside while also having a good waterproof function.
[0048] In this embodiment, the cap 10 and the cylinder 20 are integrally formed; when the mounting cover 30 is present, the cap 10, the cylinder 20 and the mounting cover 30 are still integrally formed.
[0049] Optionally, the cap 10 and the cylinder 20 are detachably connected by a snap-fit structure. For example, the top wall 11 is provided with a slot that does not penetrate the top wall 11, and the top wall of the cylinder 20 is provided with a snap post that snaps into the slot; or, the cap 10 and the cylinder 20 are detachably connected by a threaded structure. The cap 10 is provided with an internal thread, and the top end of the cylinder 20 is provided with an external thread, and the two are threadedly connected.
[0050] Based on this, this application also provides a cooling fan, which includes the waterproof cover 100 as described above.
[0051] Unlike existing technologies, this application discloses a waterproof cover and a cooling fan. The cover covers the top of the cylinder and the ventilation window. When the waterproof cover is exposed to water, water droplets will slide off the outer surfaces of the top and side walls under gravity. The cover's protection prevents water from entering the ventilation window and the cylinder. Simultaneously, the ventilation window and annular gap on the cylinder allow for gas exchange between the inside and outside. Therefore, the waterproof cover provided in this application, through its simple structural design, achieves good ventilation while ensuring waterproof performance, and its simple structure helps reduce costs.
[0052] The above descriptions are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the description and drawings of this application, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application. The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
Claims
1. A waterproof cover, characterized in that, The waterproof cover includes a cap and a cylindrical body. The top of the cylindrical body is connected to the top wall of the cap. The cylindrical body is provided with at least one ventilation window. The side wall of the cap surrounds the cylindrical body and forms an annular gap with the cylindrical body. The annular gap communicates with the ventilation window. The side wall of the cap covers the ventilation window.
2. The waterproof cover according to claim 1, characterized in that, The cap has at least one first water-blocking rib on the side facing the cylinder. The first water-blocking rib is arranged in a ring around the circumference of the side wall of the cap. The first water-blocking rib is used to prevent external moisture from entering the ventilation window through the ring gap. There is a first gap between the first water-blocking rib and the cylinder.
3. The waterproof cover according to claim 2, characterized in that, The cylinder body is provided with at least one second water-blocking rib on the side wall facing the cap. The second water-blocking rib is arranged in a ring around the circumference of the cylinder body. The second water-blocking rib is used to prevent external moisture from entering the ventilation window through the annular gap. There is a second gap between the second water-blocking rib and the side wall of the cap.
4. The waterproof cover according to claim 3, characterized in that, The first and second water-blocking ribs are staggered within the annular gap.
5. The waterproof cover according to claim 4, characterized in that, The ventilation window on the cylinder is located near the top wall. The end of the ventilation window away from the top wall of the cap and the lower edge of the side wall of the cylinder corresponding to the cap are both provided with the second water-blocking rib. The side wall of the cap is provided with the first water-blocking rib in the part between the two second water-blocking ribs.
6. The waterproof cover according to claim 4, characterized in that, The first and second water-blocking ribs overlap in the extending direction of the cylinder.
7. The waterproof cover according to claim 4, characterized in that, The first water-blocking rib is provided with a first flow-guiding inclined surface, which is used to guide the water flow to the first gap between the first water-blocking rib and the cylinder for discharge; The second water-blocking rib is provided with a second flow-guiding slope, which is used to guide the water flow to the second gap between the second water-blocking rib and the side wall of the cap for discharge.
8. The waterproof cover according to claim 1, characterized in that, The inner wall of the cylinder is provided with internal threads; or The bottom end of the cylinder away from the cap is connected to a mounting cover plate, and the mounting cover plate is provided with mounting holes for fastener connection.
9. The waterproof cover according to claim 1, characterized in that, The cap and the cylinder are integrally formed; or The cap and the cylinder are detachably connected by a snap-fit structure, or the cap and the cylinder are detachably connected by a threaded structure.
10. A cooling fan, characterized in that, The cooling fan includes a waterproof cover as described in any one of claims 1 to 9.