A fully sealed housing structure for a high-power hub motor in a mountain electric vehicle

Abstract

This utility model relates to the field of shell structure technology, specifically a fully sealed shell structure for a high-power hub motor of a mountain electric vehicle. The fully sealed shell structure includes a lower shell, an upper shell, a connecting pipe, and a sealing element. The upper shell is located on top of the lower shell, the connecting pipe is located in the middle of the top of the upper shell, and the sealing element is located inside the top of the connecting pipe. The sealing element includes a guide ring, a silicone ring, and a drain pipe. The guide ring is located inside the top of the connecting pipe, the silicone ring is fixed to the surface of the guide ring, and the drain pipe runs through the interior of the connecting pipe. The guide ring has a right-angled trapezoidal cross-section and is narrower at the top and wider at the bottom. The drain pipe includes a circular pipe and a conical pipe, which are integrally formed, and the conical pipe gradually narrows from the inside out. This utility model has the advantages of simple structure, reasonable design, and effective drainage of infiltrated water, improving the dryness of the internal structure of the shell and maintaining the airtightness of the shell structure.

Description

Technical Field

[0001] This utility model relates to the field of shell structure technology, specifically a fully sealed shell structure for a high-power hub motor of a mountain electric vehicle. Background Technology

[0002] Hub motors have become the preferred drive solution for mountain bikes due to their advantages such as compact structure, high transmission efficiency, and flexible drive control. Mountain riding environments are extremely harsh, and motors need to be frequently exposed to mud, gravel, rainwater, streams, snow, ice, and high humidity. Therefore, a fully sealed shell structure is an essential design feature for high-power hub motors in mountain bikes.

[0003] Existing fully sealed housing structures are relatively complex and poorly designed. In actual use, gaps exist at the connection between the housing and the external components. Over time, rainwater can seep into the housing, causing the sealing ring inside to delaminate and resulting in poor sealing of the housing structure. To address this issue, the inventors designed a fully sealed housing structure for a high-power hub motor of a mountain electric vehicle. Utility Model Content

[0004] The purpose of this utility model is to provide a fully sealed housing structure for a high-power hub motor of a mountain electric vehicle. It has the advantages of simple structure, reasonable design, effective drainage of seepage water, improved dryness of the internal structure of the housing, and maintenance of the airtightness of the housing structure, thus solving the problems mentioned in the above technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fully sealed housing structure for a high-power hub motor of a mountain electric vehicle, the fully sealed housing structure comprising a lower housing, an upper housing, a connecting pipe, and a sealing element; the upper housing is disposed on top of the lower housing, the connecting pipe is disposed in the middle of the top of the upper housing, and the sealing element is disposed inside the top of the connecting pipe;

[0006] The sealing element includes a guide ring, a silicone ring, and a drain pipe; the guide ring is located inside the top end of the connecting pipe, the silicone ring is fixed to the surface of the guide ring, and the drain pipe passes through and connects to the inside of the connecting pipe.

[0007] Preferably, the cross-section of the guide ring is a right-angled trapezoid, and the guide ring is narrower at the top and wider at the bottom.

[0008] Preferably, the drain pipe includes a circular pipe and a conical pipe, which are integrally formed, and the conical pipe gradually narrows from the inside to the outside.

[0009] Preferably, a connecting strip is fixed to the bottom surface of the upper housing, and the connecting strip is located inside the top of the lower housing.

[0010] Preferably, the outer wall of the lower housing is fixed with support columns, two of which are arranged opposite to each other, and a total of four sets of the oppositely arranged support columns are provided.

[0011] Preferably, the inner wall of the lower housing is fixed with an installation tube, and the upper housing and the installation tube are threadedly connected with a screw, and a guide hole is opened in the top of the screw.

[0012] Preferably, the connecting pipe includes a first connecting ring, a second connecting ring, and a third connecting ring; the outer diameters of the first connecting ring, the second connecting ring, and the third connecting ring gradually narrow; the surface of the first connecting ring is fixed to the surface of the upper housing; the surface of the second connecting ring is fixed to the surface of the guide ring; and the interior of the third connecting ring is connected to the circular pipe.

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

[0014] 1. This utility model provides a fully sealed housing structure for a high-power hub motor of a mountain electric vehicle. The fully sealed housing structure includes a lower housing, an upper housing, a connecting pipe, and sealing components. The sealing components include a guide ring, a silicone ring, and a drain pipe. The overall structure is simple and reasonably designed. The silicone ring provides an elastic static seal, the trapezoidal structure of the guide ring guides water flow, and the conical pipe of the drain pipe accelerates drainage. The three components work together to achieve a closed loop of "water seepage-guidance-discharge", which significantly reduces the risk of rainwater infiltration. This solution improves the dryness of the internal structure of the housing and maintains the airtightness of the housing structure.

[0015] 2. This utility model enables quick assembly and disassembly of the upper and lower housings by connecting screws and mounting tubes, making the disassembly and installation of the motor very simple and standardized. It also facilitates the inspection, replacement or maintenance of internal parts of the housing structure, greatly reducing maintenance difficulty and cost. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a structural diagram of the connecting pipe of this utility model;

[0019] Figure 4 This is a cross-sectional view of the connecting pipe of this utility model.

[0020] The reference numerals and names in the figure are as follows:

[0021] 1. Lower housing; 2. Upper housing; 3. Connecting strip; 4. Support column; 5. Mounting tube; 6. Screw; 7. Guide hole; 8. Connecting tube; 81. First connecting ring; 82. Second connecting ring; 83. Third connecting ring; 9. Seal; 91. Guide ring; 92. Silicone ring; 93. Drain pipe; 931. Circular tube; 932. Tapered tube. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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 a limitation of this utility model. 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. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0025] Please see Figures 1 to 4The present invention provides an embodiment of a fully sealed housing structure for a high-power hub motor of a mountain electric vehicle. The fully sealed housing structure includes a lower housing 1, an upper housing 2, a connecting pipe 8, and a sealing element 9. The upper housing 2 is disposed on the top of the lower housing 1, the connecting pipe 8 is disposed in the middle of the top of the upper housing 2, and the sealing element 9 is disposed inside the top of the connecting pipe 8.

[0026] The lower housing 1 forms the foundation and main support structure of the motor housing. The upper housing 2 and the lower housing 1 together form a complete sealed cavity, forming a sealed housing structure. The connecting pipe 8 serves as a channel for the motor wiring harness to be led out and integrates the core waterproof sealing structure.

[0027] The sealing element 9 includes a guide ring 91, a silicone ring 92, and a drain pipe 93; the guide ring 91 is located inside the top end of the connecting pipe 8, the silicone ring 92 is fixed on the surface of the guide ring 91, and the drain pipe 93 passes through and is connected to the inside of the connecting pipe 8.

[0028] The shape of the guide ring 91 guides water flow downwards toward the drain pipe 93, rather than accumulating around the wire harness. The silicone ring 92 provides the main radial seal, tightly wrapping the wire harness through it and preventing water from seeping into the housing along the surface of the wire harness. The drain pipe 93 smoothly discharges the water guided down by the guide ring 91 to the outside of the housing.

[0029] The cross-section of the guide ring 91 is a right trapezoidal shape, and the guide ring 91 is narrower at the top and wider at the bottom;

[0030] The guide ring 91 accelerates rainwater diversion through its shape design, reducing the risk of water accumulation;

[0031] The drain pipe 93 includes a circular pipe 931 and a tapered pipe 932, which are integrally formed, and the tapered pipe 932 gradually narrows from the inside to the outside;

[0032] The circular pipe 931 connects to the third connecting ring 83 to form a drainage channel. The tapered pipe 932 can effectively reduce the flow and possibility of external rainwater backflowing into the connecting pipe 8 due to pressure or splashing during dynamic riding.

[0033] A connecting strip 3 is fixed to the bottom surface of the upper housing 2, and the connecting strip 3 is located inside the top of the lower housing 1;

[0034] Connecting strip 3 assists in the alignment of the upper housing 2 and the lower housing 1, simplifying the assembly process and enhancing connection stability;

[0035] The outer wall of the lower shell 1 is fixed with support columns 4. Two support columns 4 are arranged opposite each other, and there are a total of four sets of opposite support columns 4.

[0036] Support column 4 enhances the overall rigidity of the outer shell, resists vibration and impact, and prevents deformation from causing seal failure;

[0037] An installation tube 5 is fixed to the inner wall of the lower housing 1, and a screw 6 is threadedly connected between the upper housing 2 and the installation tube 5. A guide hole 7 is opened in the top of the screw 6.

[0038] The mounting tube 5 is fixed to the inner wall of the lower housing 1, providing a threaded path for the screw 6. The screw 6 is used to fix itself inside the mounting tube 5, thereby connecting the upper housing 2 and the lower housing 1 together. The guide hole 7 facilitates the insertion of tools into the screw 6, thus facilitating the application of rotational force to the screw 6.

[0039] The connecting pipe 8 includes a first connecting ring 81, a second connecting ring 82, and a third connecting ring 83; the outer diameters of the first connecting ring 81, the second connecting ring 82, and the third connecting ring 83 gradually narrow; the surface of the first connecting ring 81 is fixed to the surface of the upper housing 2; the surface of the second connecting ring 82 is fixed to the surface of the guide ring 91; and the interior of the third connecting ring 83 is connected to the circular pipe 931.

[0040] The first connecting ring 81 is fixed on the surface of the upper housing 2 and serves as the base for the connecting pipe 8. The second connecting ring 82 connects to the guide ring 91 and assists in the positioning of the sealing structure. The third connecting ring 83 is connected to the circular pipe 931 of the drain pipe 93 to guide the water flow out.

[0041] Working principle: When rainwater seeps into the connecting pipe 8 during the actual use of the high-power hub motor of the mountain bike, the water will flow into the gap between the guide ring 91 and the first connecting ring 81 under the action of the silicone ring 92 and the influence of the shape of the guide ring 91. With the design of the drain pipe 93, the water will be discharged from the inside of the connecting pipe 8. With the design of the tapered pipe 932, the flow rate of water seeping into the connecting pipe 8 during rainy days can be reduced.

[0042] When it is necessary to disassemble the outer shell structure, insert the tool into the guide hole 7, apply a rotational force to the screw 6, remove the screw 6 from the mounting tube 5, and then apply an upward force to the upper shell 2 to separate the upper shell 2 from the lower shell 1. When it is necessary to connect the outer shell structure together, with the assistance of the connecting strip 3, place the upper shell 2 on top of the lower shell 1, then insert the tool into the guide hole 7, apply a rotational force to the screw 6, and drive the screw 6 into the mounting tube 5.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-power wheel hub motor full-sealed shell structure for a mountain electric vehicle, characterized in that, include: The lower housing (1), the upper housing (2), the connecting pipe (8), and the sealing element (9) are provided; the upper housing (2) is located on the top of the lower housing (1), the connecting pipe (8) is located in the middle of the top of the upper housing (2), and the sealing element (9) is located inside the top of the connecting pipe (8); The sealing element (9) includes a guide ring (91), a silicone ring (92), and a drain pipe (93); the guide ring (91) is located inside the top of the connecting pipe (8), the silicone ring (92) is fixed on the surface of the guide ring (91), and the drain pipe (93) is connected through the interior of the connecting pipe (8).

2. The high-power wheel hub motor fully-sealed housing structure for a mountain electric vehicle of claim 1, wherein The cross-section of the guide ring (91) is a right trapezoidal shape, and the guide ring (91) is narrow at the top and wide at the bottom.

3. The high-power wheel hub motor full-sealed shell structure of the mountain electric vehicle according to claim 1, characterized in that, The drain pipe (93) includes a circular pipe (931) and a tapered pipe (932), which are integrally formed, and the tapered pipe (932) gradually narrows from the inside to the outside.

4. The high-power wheel hub motor full-sealed shell structure of the mountain electric vehicle according to claim 1, characterized in that, A connecting strip (3) is fixed to the bottom surface of the upper shell (2), and the connecting strip (3) is located inside the top of the lower shell (1).

5. The high-power wheel hub motor full-sealed shell structure of the mountain electric vehicle according to claim 1, characterized in that, The outer wall of the lower housing (1) is fixed with a support column (4), and two support columns (4) are arranged opposite to each other, and there are a total of four sets of the opposite support columns (4).

6. The high-power wheel hub motor fully-sealed housing structure of the mountain electric vehicle according to claim 1, characterized in that, The inner wall of the lower housing (1) is fixed with an installation tube (5), and the upper housing (2) is threadedly connected to the installation tube (5) with a screw (6). A guide hole (7) is opened in the top of the screw (6).

7. The high-power wheel hub motor fully-sealed housing structure of the mountain electric vehicle according to claim 1, characterized in that, The connecting pipe (8) includes a first connecting ring (81), a second connecting ring (82), and a third connecting ring (83); the outer diameters of the first connecting ring (81), the second connecting ring (82), and the third connecting ring (83) decrease from wide to narrow; the surface of the first connecting ring (81) is fixed to the surface of the upper housing (2); the surface of the second connecting ring (82) is fixed to the surface of the guide ring (91); and the interior of the third connecting ring (83) is connected to the circular tube (931).

Images