Motor housing with wiring harness sealing arrangement and motor

Abstract

The utility model discloses a kind of motor casing and motor with wiring harness sealing structure, including rubber sleeve, rubber sleeve injection molding is in the end of wiring harness, the outer wall of rubber sleeve is used to with the casing of motor on the wiring harness connection exit mutual inlaying and forms sealing;The utility model discloses a kind of motor casing and motor with wiring harness sealing structure, by forming inlaying type sealing between rubber sleeve and motor shell, so as to realize axial sealing and radial sealing, compared with prior art sealing effect is good and structure is simple, cost is lower.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a motor housing and motor with a wire harness sealing structure. Background Technology

[0002] Motors have a wide range of applications and need to be able to operate in extreme and harsh environments. For motors used in ride-on vehicles (such as lawnmowers, motorcycles, and all-terrain vehicles), they need to cope with wading and mud, thus placing high demands on the motor's sealing. In the overall motor sealing system, since the motor usually needs to lead out wiring harnesses for external power connections, the motor wiring harness sealing is an indispensable part. In existing technologies, wiring harness seals typically use gland-type seals, pressure plate seals, and rubber sleeve seals. Gland-type seals require the wiring harness to pass through the gland, which has strict requirements on the diameter of the wiring harness and the diameter of the wiring harness connection terminals, requiring high matching accuracy. They also require reserved installation space in the enclosure, resulting in large space requirements. Pressure plate seals achieve wiring harness exit sealing by installing a pressure plate to compress the sealing ring. They require reserved mounting space for the pressure plate in the enclosure and machined threaded holes, resulting in a complex overall structure and a large number of parts, which is not conducive to assembly.

[0003] Therefore, it is necessary to improve the sealing structure of the motor wiring harness in the existing technology, which can improve the sealing effect, reduce the risk of leakage, simplify operation, and facilitate assembly. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a motor housing with a wire harness sealing structure, which can improve the sealing effect, reduce the risk of leakage, simplify operation, and facilitate assembly.

[0005] The present invention relates to a motor housing with a wire harness sealing structure, comprising a rubber sleeve, which is injection molded on the outer periphery of the end of the wire harness. In use, the outer wall of the rubber sleeve is used to fit into the wire harness inlet on the motor housing to form a seal.

[0006] Furthermore, the outer wall of the rubber sleeve is provided with a sealing groove, and the wire harness outlet is provided with a sealing protrusion that mates with the sealing groove and is embedded in the sealing groove to form a seal.

[0007] Furthermore, the outer wall of the rubber sleeve is provided with a sealing ring mounting groove for installing a sealing ring, and a sealing ring is installed in the sealing ring mounting groove.

[0008] Furthermore, the motor housing includes a cylindrical body and a rear cover. The cylindrical body is provided with an arc-shaped groove I, and the rear cover is provided with an arc-shaped groove II corresponding to the arc-shaped groove I. The rear cover is installed after the cylindrical body, and the arc-shaped groove I and the arc-shaped groove II form the wire harness outlet.

[0009] Furthermore, the sealing protrusion is an annular protrusion, and the sealing groove is an annular groove.

[0010] Furthermore, the arc-shaped groove I and arc-shaped groove II are respectively provided with protrusion I and protrusion II. After the arc-shaped groove I and arc-shaped groove II are combined to form the wire harness outlet, the protrusion I and protrusion II are combined to form the sealing protrusion.

[0011] Furthermore, the axial cross-section of the top surface of the annular protrusion is arc-shaped.

[0012] Furthermore, the sealing ring mounting groove is located at the end of the rubber sleeve, and the sealing groove is located at the rear end of the rubber sleeve.

[0013] Furthermore, the sealing ring is an O-ring.

[0014] The motor of this utility model includes the motor housing with the wire harness sealing structure, and the motor is mounted on a riding vehicle.

[0015] The beneficial effects of this utility model are as follows: The motor housing and motor with wire harness sealing structure of this utility model use a rubber sleeve to form a seal for the wire harness. The rubber sleeve is injection molded on the outer periphery of the wire harness. Compared with the prior art, it can greatly improve the tightness of the connection between the rubber sleeve and the wire harness. At the same time, an embedded sealing structure is formed between the rubber sleeve and the motor housing, which can realize the positioning and installation of the wire harness and improve the sealing effect. Moreover, the overall structure is simple, easy to assemble, and has low production cost. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a schematic diagram of the structure of the motor of this utility model;

[0018] Figure 2 This is an exploded view of the motor.

[0019] Figure 3 This is a cross-sectional view of the connection between the rubber sleeve and the wire harness outlet.

[0020] Figure 4 This is a cross-sectional view of the rubber sleeve;

[0021] The above figures include the following reference numerals:

[0022] 1. Cylinder body; 2. End cap; 3. Rubber sleeve; 301. Sealing ring; 302. Sealing groove; 4. Sealing protrusion. Detailed Implementation

[0023] Figure 1 This is a schematic diagram of the structure of the motor of this utility model. Figure 2This is an exploded view of the motor. Figure 3 This is a cross-sectional view of the connection between the rubber sleeve and the wire harness outlet. Figure 4 This is a cross-sectional view of the rubber sleeve, as shown below. Figure 1-4 As shown: This embodiment of the motor housing with a wire harness sealing structure includes a rubber sleeve 3, which is injection molded onto the outer periphery of the end of the wire harness. In use, the outer wall of the rubber sleeve 3 is used to interlock with the wire harness inlet on the motor housing to form a seal. In this structure, when the rubber sleeve 3 is installed at the wire harness inlet, the rubber sleeve 3 and the wire harness inlet form an embedded seal. This can be achieved by providing a sealing protrusion 4 on the inner wall of the wire harness inlet and a sealing groove 302 on the rubber sleeve 3, or by providing a sealing groove 302 on the inner wall of the wire harness inlet and a sealing protrusion 4 on the rubber sleeve 3. The end of the wire harness is near the motor housing, and the wire harness is sealed and installed in the motor through the rubber sleeve 3; naturally, the wire harness is also located inside the motor housing.

[0024] Specifically, the rubber sleeve 3 is injection molded and set on the outer periphery of the wire harness. Compared with the existing technology where wire harness mounting holes are set in the rubber sleeve 3 and the wire harness passes through the mounting holes to achieve a tight connection through external force, the sealing effect of the wire harness can be improved. At the same time, by forming an embedded seal, the rubber sleeve 3 can be compressed, achieving both radial and axial sealing. The sealing direction and sealing area are increased compared with the existing technology, resulting in a better sealing effect.

[0025] In this embodiment, the outer wall of the rubber sleeve 3 is provided with a sealing groove 302, and the wire harness outlet is provided with a sealing protrusion 4 that cooperates with the sealing groove 302 and is embedded in the sealing groove 302 to form a seal. In this structure, when the rubber sleeve 3 is installed at the wire harness outlet, the sealing protrusion 4 is fitted into the sealing groove 302, thereby applying force to the rubber sleeve 3 and improving the sealing effect.

[0026] In this embodiment, the outer wall of the rubber sleeve 3 is also provided with a sealing ring mounting groove for installing the sealing ring 301, and the sealing ring 301 is installed in the sealing ring mounting groove. By setting the sealing ring 301, when the rubber sleeve 3 is installed at the wire harness outlet, the inner wall of the wire harness outlet can apply force to the sealing ring 301 to form a seal, thereby further improving the sealing effect.

[0027] In this embodiment, the motor housing includes a cylindrical body 1 and a rear cover 2. The cylindrical body 1 has an arc-shaped groove I, and the rear cover 2 has an arc-shaped groove II corresponding to the arc-shaped groove I. After the rear cover 2 is installed on the cylindrical body 1, the arc-shaped groove I and the arc-shaped groove II form the wire harness outlet. The motor housing is a split structure, including the cylindrical body 1 and the rear cover 2. The rotor and stator of the motor are installed inside the cylindrical body 1, which is an application of existing technology and will not be described in detail here. During assembly, the cylindrical body 1 and the rear cover 2 are connected by a box assembly. After the assembly is completed, the arc-shaped groove I and the arc-shaped groove II form the wire harness outlet, which simultaneously fixes the wire harness and compresses the sealing ring 301. The shapes of the arc-shaped groove I and the arc-shaped groove II are adapted to the shape of the rubber sleeve 3.

[0028] In this embodiment, the sealing protrusion 4 is an annular protrusion, and the sealing groove 302 is an annular groove. This helps to increase the contact area with the sealing groove 302.

[0029] In this embodiment, the arc-shaped groove I and arc-shaped groove II are respectively provided with protrusion I and protrusion II. After the arc-shaped groove I and arc-shaped groove II are combined to form the wire harness outlet, the protrusion I and protrusion II are combined to form the sealing protrusion 4. Protrusion I and protrusion II are semi-annular protrusions. After the box is assembled, they form an annular protrusion, which facilitates the positioning and assembly of the rubber sleeve 3.

[0030] In this embodiment, the axial cross-section of the top surface of the annular protrusion is arc-shaped. The end of the annular protrusion that contacts the bottom of the sealing groove 302 is arc-shaped, which makes it easy to form uniform deformation, thereby increasing the force on the rubber sleeve 3, making the force more concentrated, and further improving the sealing effect.

[0031] In this embodiment, the sealing ring mounting groove is located at the end of the rubber sleeve 3, and the sealing groove 302 is located at a rearward position from the end of the rubber sleeve 3. Figure 3 As shown, the sealing ring mounting groove is relative to Figure 3 The vertical direction is located above the sealing groove 302, and the sealing groove 302 is located below the sealing ring mounting groove. At the same time, a stepped structure (formed on the outer wall of the rubber sleeve 3) is provided above the sealing ring mounting groove and below the sealing groove 302 to facilitate the bending of the wire harness.

[0032] In this embodiment, the sealing ring is an O-ring. The shape of the sealing ring mounting groove is adapted to the shape of the sealing ring.

[0033] The motor in this embodiment includes the motor housing with the wire harness sealing structure described above, and the motor is mounted on a riding vehicle. In this structure, the riding vehicle can be a lawnmower, motorcycle, or all-terrain vehicle, etc. Of course, the motor generally includes a stator assembly, a shaft, and a rotor assembly, which is an application of existing technology and will not be described in detail here.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A motor housing with a wire harness sealing structure, characterized in that: Includes a rubber sleeve, which is injection molded on the outer periphery of the end of the wire harness. In use, the outer wall of the rubber sleeve is used to fit into the wire harness inlet on the motor housing to form a seal.

2. The motor housing with a wire harness sealing structure according to claim 1, characterized in that: The outer wall of the rubber sleeve is provided with a sealing groove, and the wire harness outlet is provided with a sealing protrusion that mates with the sealing groove and is embedded in the sealing groove to form a seal.

3. The motor housing with a wire harness sealing structure according to claim 2, characterized in that: The outer wall of the rubber sleeve is also provided with a sealing ring mounting groove for installing a sealing ring, and a sealing ring is installed in the sealing ring mounting groove.

4. The motor housing with a wire harness sealing structure according to claim 2, characterized in that: The motor housing includes a cylindrical body and a rear cover. The cylindrical body is provided with an arc-shaped groove I, and the rear cover is provided with an arc-shaped groove II corresponding to the arc-shaped groove I. The rear cover is installed after the cylindrical body, and the arc-shaped groove I and the arc-shaped groove II form the wire harness outlet.

5. The motor housing with a wire harness sealing structure according to claim 2, characterized in that: The sealing protrusion is an annular protrusion, and the sealing groove is an annular groove.

6. The motor housing with a wire harness sealing structure according to claim 4, characterized in that: The arc-shaped groove I and arc-shaped groove II are respectively provided with protrusion I and protrusion II. After the arc-shaped groove I and arc-shaped groove II are combined to form the wire harness outlet, the protrusion I and protrusion II are combined to form the sealing protrusion.

7. The motor housing with a wire harness sealing structure according to claim 5, characterized in that: The axial cross-section of the top surface of the annular protrusion is arc-shaped.

8. The motor housing with a wire harness sealing structure according to claim 3, characterized in that: The sealing ring mounting groove is located at the end of the rubber sleeve, and the sealing groove is located at the rear end of the rubber sleeve.

9. The motor housing with a wire harness sealing structure according to claim 3, characterized in that: The sealing ring is an O-ring.

10. An electric motor, characterized in that: The motor includes a motor housing with a wire harness sealing structure as described in any one of claims 1-9, and the motor is mounted on a riding vehicle.

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