Improved fairing and underwater propeller thereof

Abstract

The utility model relates to the technical field of diving equipment, in particular to an improved fairing which comprises a fairing body (10), the fairing body (10) is provided with a through hole (11), and at least one through hole (12) is formed in the position, close to the through hole (11), of the fairing body (10). The utility model further provides an underwater propeller which comprises the improved fairing. Due to the adoption of the structural design, that is, at least one through hole is formed in the position, close to the through hole, of the fairing body, when the fairing enters water, water enters a machine body of the underwater propeller from the through hole, heat dissipation is conducted on a motor working in the machine body, the working efficiency of the motor is improved, and the service life of the motor is prolonged; when the underwater propeller comes out of water, water in the body of the underwater propeller can be rapidly discharged from the through hole, and the situation that the service life of the motor is shortened due to the fact that the motor is exposed in a humid environment for a long time is prevented.

Description

Technical Field

[0001] This utility model relates to the field of diving equipment technology, and in particular to an improved fairing and its underwater propulsion device. Background Technology

[0002] A submersible propulsion system, also known as an underwater booster, is an important auxiliary equipment for shallow-sea diving. Related technologies for submersible propulsion systems include components such as a power supply assembly and a motor assembly. The motor assembly includes a motor and a propeller. Both the power supply assembly and the motor assembly are integrated inside a waterproof housing. The motor output shaft of the motor assembly passes through the waterproof housing and is connected to the external propeller for power transmission.

[0003] Chinese utility model patent CN216611560U discloses a tandem underwater propellerless thruster, comprising a fuselage, a pressurization device, a water inlet assembly, and a water outlet assembly. The fuselage has an internal cavity, within which the pressurization device is located. The water inlet assembly is encircled around the outer ring of the fuselage and communicates with the cavity, as is the water outlet assembly. The pressurization device draws water from outside the fuselage into the cavity through the water inlet assembly and then ejects it through the water outlet assembly to provide propulsion. However, because the motor of the pressurization device is sealed within the fuselage, the enclosed environment makes heat dissipation difficult, leading to decreased motor efficiency, increased energy consumption, and reduced lifespan, failing to meet the increasingly demanding requirements of modern underwater propellers.

[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an improved shroud that can dissipate heat from the motor during operation, improve the motor's working efficiency, and extend the motor's service life.

[0006] The purpose of this invention is also to provide an underwater propulsion device with the above-mentioned improved fairing.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An improved fairing includes a fairing body having a through hole and at least one through-hole near the through hole.

[0009] As a further embodiment of this utility model, when the number of through holes is even, the even number of through holes are arranged opposite each other on the periphery of the through hole.

[0010] As a further embodiment of this utility model, when the number of through holes is an odd number of three or more, the odd number of through holes are evenly distributed around the periphery of the through hole.

[0011] As a further embodiment of this utility model, the shape of the through hole includes, but is not limited to, circular, elliptical, elongated, and fan-shaped.

[0012] This invention also provides an underwater thruster, including the improved fairing described above.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] Due to the above-mentioned structural design, that is, at least one through hole is provided near the through hole in the body of the fairing, when the present application enters the water, water enters the body of the underwater thruster through the through hole, which dissipates heat from the motor working inside the body, improves the motor's working efficiency, and extends the motor's service life. When the present application comes out of the water, the water inside the body of the underwater thruster can be quickly discharged through the through hole, preventing the motor from being exposed to a humid environment for a long time, which would reduce the motor's service life. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the structure of the air guide cover according to an embodiment of the present utility model;

[0016] Appendix Figure 2 This is a side view of the air deflector according to an embodiment of the present utility model;

[0017] Appendix Figure 3 This is a diagram showing the working state of the air guide shield according to an embodiment of the present utility model;

[0018] Appendix Figure 4 This is a diagram showing another working state of the air guide shield according to an embodiment of this utility model;

[0019] Appendix Figure 5 This is a schematic diagram of the underwater thruster according to an embodiment of the present invention.

[0020] The labels in the diagram are as follows:

[0021] 1-Underwater thruster;

[0022] 10 - Shielding body;

[0023] 11-Through hole, 12-Through hole. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings:

[0025] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used 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 with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0026] In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature. Example

[0028] like Figure 1-4As shown, this application discloses an improved flow guide, including a flow guide body 10. The flow guide body 10 has a through hole 11, through which the motor output shaft passes. The flow guide body 10 has four through holes 12 near the through hole 11. The through holes 12 are fan-shaped. In this embodiment, the number of through holes 12 is even. The even number of through holes 12 are arranged in pairs opposite each other on the periphery of the through hole 11. When the through holes 12 are arranged in pairs opposite each other, it helps to achieve structural symmetry, provides better balance, helps to maintain the rigidity of the flow guide body 10, reduces the strength reduction caused by material removal, and also helps to optimize the water flow path, reduce resistance, and improve efficiency.

[0029] like Figure 3 As shown, when this application enters water, water enters the underwater thruster's fuselage from the outside through the through-hole 12, cooling the motor inside the fuselage, improving motor efficiency, and extending motor lifespan. In the prior art, the motors used in underwater thrusters are all waterproof motors; therefore, water ingress into the fuselage will not damage the motor. On the contrary, the flow of water improves the motor's heat dissipation, aiding in temperature control.

[0030] like Figure 4 As shown, when this application emerges from the water, the water inside the underwater thruster's body can be quickly discharged through the through hole 12, preventing the motor from being in a humid environment for a long time, thus reducing the motor's service life, lowering maintenance costs, and improving the overall reliability of the underwater thruster.

[0031] As an alternative to this application, when the number of through holes 12 is an odd number of three or more, the odd number of through holes 12 are evenly distributed around the periphery of the through hole 11.

[0032] As an alternative to this application, the shape of the through hole 12 includes, but is not limited to, circular, elliptical, and elongated shapes. By changing the shape of the through hole, the fluid dynamics characteristics can be optimized, resistance reduced, and flow efficiency increased.

[0033] like Figure 5 As shown, this application also provides an underwater thruster including the aforementioned improved fairing. The underwater thruster with the improved fairing can effectively dissipate heat from its motor during underwater operation, maintaining the motor's operating temperature within a reasonable range, ensuring stable performance, and extending its service life. When not in operation, it also prevents the motor inside the underwater thruster body from being exposed to a humid environment for extended periods, significantly extending the motor's service life.

[0034] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the existing technology and features ingenious structure, good heat dissipation, and long lifespan.

[0035] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. An improved fairing, characterized by: The improved fairing comprises a fairing body (10) provided with at least one through hole (12) near a through hole (11).

2. The improved fairing of claim 1, wherein: When the number of through holes (12) is even, the even number of through holes (12) are arranged opposite to each other on the circumferential side of the through hole (11).

3. The improved fairing of claim 1, wherein: When the number of through holes (12) is more than three and odd, the odd number of through holes (12) are evenly distributed on the circumferential side of the through hole (11).

4. An underwater propulsor characterized by: The improved fairing comprises the improved fairing according to any one of claims 1-3.

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