New energy motor controller rotary transformer wire harness sealing ring structure

Abstract

The utility model relates to the technical field of motor controllers, in particular to a new energy motor controller rotary transformer wire harness sealing ring structure which is simple and compact in overall structure, high in assembly efficiency, capable of effectively reducing production cost and reliable in waterproof grade, thereby greatly improving quality and reliability of products. In the new energy motor controller rotary transformer wire harness sealing ring structure, a sealing ring body is cylindrical, a plurality of wire passing round holes are formed in the middle of the sealing ring body, and a plurality of first annular sealing protrusions are arranged in the wire passing round holes; the outer ring of the sealing ring body is a sealing face, and the sealing face is provided with a plurality of second annular sealing protrusions. One end of the sealing ring body is provided with a limiting step with the outer diameter larger than that of the sealing face, the other end of the sealing ring body is provided with a limiting boss with the outer diameter larger than that of the sealing face, the limiting boss has a guiding inclination angle, and the maximum outer diameter of the limiting boss is smaller than the outer diameter of the limiting step. The limiting boss is provided with a plurality of vertical grooves.

Description

Technical Field

[0001] This utility model relates to the field of motor controller technology, and in particular to a sealing ring structure for a resolver harness of a new energy motor controller. Background Technology

[0002] Currently, the integration of motors and electronic controls in new energy vehicles is a mainstream trend. This type of integration itself needs to have an IP67 or even higher protection level. There is also a certain degree of isolation between the internal cavity of the motor and the electronic control to prevent condensation due to temperature differences, but the requirements for this isolation are relatively low.

[0003] In mainstream new energy vehicles, the connection between the motor and the controller wiring harness is usually made using a dedicated connector, which is then fastened to the controller housing with screws and sealed with a sealing ring. However, the inventors of this application have found that such dedicated connectors are generally expensive, have complex assembly processes, and are costly. Furthermore, for integrated motor and electronic control structures that do not require high internal isolation, using dedicated connectors would be redundant.

[0004] Therefore, how to provide a sealing ring structure for the resolver harness in a new energy motor controller, which can not only isolate the resolver harness in the controller from the motor through the sealing ring to effectively improve the protection level of the electrical control, but also has a simple structure, is easy to assemble, and can effectively reduce costs, has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing ring structure for the resolver harness of a new energy motor controller. Its overall structure is simple and compact, with high assembly efficiency, while effectively reducing production costs and ensuring reliable waterproofing, thereby greatly improving the quality and reliability of the product.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sealing ring structure for a new energy motor controller resolver harness includes: a sealing ring body, the sealing ring body being cylindrical, and having a plurality of wire-passing circular holes in the middle of the sealing ring body, with a plurality of first annular sealing protrusions inside the wire-passing circular holes; the outer ring of the sealing ring body being a sealing surface, and the sealing surface having a plurality of second annular sealing protrusions.

[0008] One end of the sealing ring body is provided with a limiting step whose outer diameter is larger than the outer diameter of the sealing surface, and the other end of the sealing ring body is provided with a limiting boss whose outer diameter is larger than the outer diameter of the sealing surface. The limiting boss has a guiding tilt angle, and the maximum outer diameter of the limiting boss is smaller than the outer diameter of the limiting step. The limiting boss is provided with multiple vertical grooves.

[0009] In practical applications, one of the multiple wire-passing holes is located on the central axis of the sealing ring body, while the remaining multiple wire-passing holes are evenly distributed along the circumference of the sealing ring body.

[0010] The plurality of the first annular sealing protrusions are distributed at equal intervals along the axial direction of the wire-passing circular hole.

[0011] Specifically, multiple second annular sealing protrusions are distributed at equal intervals along the axial direction of the sealing ring body.

[0012] Furthermore, the plurality of vertical grooves are distributed at equal intervals along the circumferential direction of the limiting boss.

[0013] Furthermore, the guide tilt angle is such that the outer diameter of the limiting boss near the limiting step is the largest, and the outer diameter of the limiting boss far from the limiting step is the smallest, with a smooth transition between the largest and smallest outer diameters.

[0014] Compared with existing technologies, the new energy motor controller resolver harness sealing ring structure of this utility model has the following advantages:

[0015] In the new energy motor controller resolver harness sealing ring structure provided by this utility model, the sealing ring body is cylindrical, and multiple wire-passing circular holes are provided in the middle of the sealing ring body. Multiple first annular sealing protrusions are provided inside the wire-passing circular holes. The outer ring of the sealing ring body is a sealing surface, and multiple second annular sealing protrusions are provided on the sealing surface. One end of the sealing ring body is provided with a limiting step with an outer diameter larger than the outer diameter of the sealing surface, and the other end of the sealing ring body is provided with a limiting boss with an outer diameter larger than the outer diameter of the sealing surface. The limiting boss has a guiding tilt angle, and the maximum outer diameter of the limiting boss is smaller than the outer diameter of the limiting step. In addition, the limiting boss is provided with multiple vertical grooves. Therefore, the new energy motor controller resolver harness sealing ring structure provided by this utility model can effectively seal the resolver harness, thereby effectively improving the protection level of the controller. Moreover, the assembly method is simple and the cost is low. Attached Figure Description

[0016] Figure 1 A schematic diagram of the sealing ring structure of the resolver harness of the new energy motor controller provided in this embodiment of the utility model;

[0017] Figure 2A cross-sectional view of the sealing ring structure of the resolver harness of the new energy motor controller provided in this embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the assembly structure of the resolver harness sealing ring structure for the new energy motor controller provided in this embodiment of the utility model.

[0019] Figure label:

[0020] 1-Sealing ring body; 2-Wire passage hole; 21-First annular sealing protrusion; 3-Sealing surface; 31-Second annular sealing protrusion; 4-Limiting step; 5-Limiting boss; 51-Vertical groove;

[0021] 6-Resolver harness; 61-Single harness; 7-Controller housing; 71-Radial sealing hole; 72-Limiting end face; 73-Outer surface. Detailed Implementation

[0022] For ease of understanding, the sealing ring structure of the new energy motor controller resolver harness provided in the present invention will be described in detail below with reference to the accompanying drawings.

[0023] This utility model embodiment provides a sealing ring structure for the resolver harness of a new energy motor controller, such as... Figure 1 and Figure 2 As shown, it includes: a sealing ring body 1, which is cylindrical and has multiple wire-passing circular holes 2 in the middle, and multiple first annular sealing protrusions 21 inside the wire-passing circular holes 2; the outer ring of the sealing ring body 1 is a sealing surface 3, and the sealing surface 3 is provided with multiple second annular sealing protrusions 31.

[0024] One end of the sealing ring body 1 is provided with a limiting step 4 whose outer diameter is larger than that of the sealing surface 3, and the other end of the sealing ring body 1 is provided with a limiting boss 5 whose outer diameter is larger than that of the sealing surface 3. The limiting boss 5 has a guiding tilt angle, and the maximum outer diameter of the limiting boss 5 is smaller than that of the limiting step 4. The limiting boss 5 is provided with multiple vertical grooves 51.

[0025] Compared with the prior art, the new energy motor controller resolver harness sealing ring structure described in this embodiment of the invention has the following advantages:

[0026] In the new energy motor controller resolver harness sealing ring structure provided in this embodiment of the utility model, the sealing ring body 1 is cylindrical, and multiple wire-passing circular holes 2 are provided in the middle of the sealing ring body 1. Multiple first annular sealing protrusions 21 are provided inside the wire-passing circular holes 2. The outer ring of the sealing ring body 1 is a sealing surface 3, and the sealing surface 3 is provided with multiple second annular sealing protrusions 31. One end of the sealing ring body 1 is provided with a limiting step 4 whose outer diameter is larger than the outer diameter of the sealing surface 3, and the other end of the sealing ring body 1 is provided with a limiting boss 5 whose outer diameter is larger than the outer diameter of the sealing surface 3. The limiting boss 5 has a guiding tilt angle, and the maximum outer diameter of the limiting boss 5 is smaller than the outer diameter of the limiting step 4. In addition, the limiting boss 5 is provided with multiple vertical grooves 51. Therefore, the new energy motor controller resolver harness sealing ring structure provided in this embodiment of the utility model can effectively seal the resolver harness with the sealing ring, thereby effectively improving the protection level of the controller. Moreover, the assembly method is simple and the cost is low.

[0027] In practical applications, such as Figure 1 and Figure 2 As shown, one of the multiple wire-passing holes 2 can be located at the central axis of the sealing ring body 1, and the other multiple wire-passing holes 2 can be distributed at equal intervals along the circumference of the sealing ring body 1.

[0028] Among them, such as Figure 1 and Figure 2 As shown, multiple first annular sealing protrusions 21 can be distributed at equal intervals along the axial direction of the through hole 2.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, multiple second annular sealing protrusions 31 can be distributed at equal intervals along the axial direction of the sealing ring body 1.

[0030] Furthermore, such as Figure 1 and Figure 2 As shown, multiple vertical grooves 51 can be distributed at equal intervals along the circumference of the limiting boss 5.

[0031] Furthermore, such as Figure 1 and Figure 2 As shown, the aforementioned guide tilt angle can be such that the outer diameter of the limiting boss 5 near the limiting step 4 is the largest, and the outer diameter of the limiting boss 5 far from the limiting step 4 is the smallest, and the transition between the largest and smallest outer diameters can preferably be smooth.

[0032] The assembly process of the new energy motor controller resolver harness sealing ring structure provided in this embodiment of the present invention will be described in detail below with reference to the accompanying drawings:

[0033] like Figure 1 and Figure 2 Combination Figure 3As shown, this sealing ring structure is mainly used for sealing and isolating the resolver harness of the motor controller for new energy vehicles. The resolver harness 6 can be composed of several single wire harnesses 61. The number of single wire harnesses 61 corresponds to the number of wire-passing holes 2 in the sealing ring body 1. The single wire harness 61 passes through the wire-passing holes 2 in the sealing ring body 1 and is assembled with the sealing ring body 1. The controller housing 7 is provided with a radial sealing hole 71. The inner side of the radial sealing hole 71 is provided with a limiting end face 72. The assembled resolver harness 6 and the sealing ring body 1 are radially sealed with the controller housing 7. The axial displacement of the sealing ring body 1 is restricted by the limiting end face 72 and the outer surface 73 of the controller housing 7. Thus, the sealing ring structure can effectively seal the resolver harness 6 and improve the protection level of the controller. At the same time, the assembly method is simple and the cost is low.

[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A sealing ring structure for a resolver harness of a new energy motor controller, characterized in that, include: The sealing ring body is cylindrical, and a plurality of wire-passing circular holes are provided in the middle of the sealing ring body. A plurality of first annular sealing protrusions are provided inside the wire-passing circular holes. The outer ring of the sealing ring body is a sealing surface, and a plurality of second annular sealing protrusions are provided on the sealing surface. One end of the sealing ring body is provided with a limiting step whose outer diameter is larger than the outer diameter of the sealing surface, and the other end of the sealing ring body is provided with a limiting boss whose outer diameter is larger than the outer diameter of the sealing surface. The limiting boss has a guiding tilt angle, and the maximum outer diameter of the limiting boss is smaller than the outer diameter of the limiting step. The limiting boss is provided with multiple vertical grooves.

2. The sealing ring structure of the new energy motor controller resolver harness according to claim 1, characterized in that, One of the plurality of wire-passing holes is located on the central axis of the sealing ring body, and the remaining plurality of wire-passing holes are distributed at equal intervals along the circumference of the sealing ring body.

3. The sealing ring structure of the new energy motor controller resolver harness according to claim 1, characterized in that, Multiple first annular sealing protrusions are evenly distributed along the axial direction of the through hole.

4. The sealing ring structure of the new energy motor controller resolver harness according to claim 1, characterized in that, Multiple second annular sealing protrusions are evenly distributed along the axial direction of the sealing ring body.

5. The sealing ring structure of the new energy motor controller resolver harness according to claim 1, characterized in that, The multiple vertical grooves are evenly distributed along the circumference of the limiting boss.

6. The sealing ring structure for the resolver harness of the new energy motor controller according to any one of claims 1-5, characterized in that, The guide tilt angle is such that the outer diameter of the limiting boss is largest near the limiting step and smallest away from the limiting step, with a smooth transition between the largest and smallest outer diameters.

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