Motor controller wiring sealing structure

Abstract

The utility model discloses a motor controller wiring sealing structure. The motor controller wiring sealing structure comprises a wiring cavity, a threading hole, a fixing frame, a first glue pouring layer, a second glue pouring layer and the like which are arranged in an upper cover. According to the utility model, the special wiring cavity is arranged in the upper cover, the wiring harness enters the wiring cavity through the threading hole and is fixed through the fixing frame, and then the first glue pouring layer and the second glue pouring layer are sequentially poured, and the wiring cavity is filled and covered, so that the wiring part of the motor controller is sealed, external substances such as water vapor and dust can be effectively prevented from entering the wiring cavity, and the service life of the motor controller is prolonged. And the sealing performance is improved, so that the safety of the wire harness and the circuit board is protected, and the service life of the motor controller is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment and specifically to a wiring sealing structure for a motor controller. Background Art

[0002] As one of the key components in the motor system, the motor controller is used to control the start, run and stop functions of the motor. The motor controller usually includes components such as the housing, internal circuit board, connector and wiring harness, among which the wiring harness is responsible for connecting various sensors, actuators and power supplies to the circuit board.

[0003] In the motor controller, the sealing structure between the wiring harness and the upper cover plays a key role. A good sealing structure can effectively prevent external substances such as water vapor and dust from entering the control box, protect the circuit board and wiring harness from damage, and thus ensure the stability and reliability of the motor controller. Traditional motor controller sealing structures usually use glue seals, sealing gaskets, etc., which are complicated to install and costly, and are prone to aging and cracking during long-term use, resulting in reduced sealing performance. In addition, some sealing structures have problems such as loose installation and susceptibility to external environmental influences, which affects the sealing effect and the service life of the controller.

[0004] Therefore, it is necessary to provide an improved wiring sealing structure to improve the sealing performance of the motor controller wiring harness. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the existing motor controller wiring seal, the utility model provides a motor controller wiring seal structure.

[0006] The technical solution adopted by the utility model is as follows: a motor controller wiring sealing structure includes: a wiring cavity, which is arranged on the inner side of the upper cover of the motor controller; a wire threading hole, which is arranged on the cavity wall of the wiring cavity and is connected with the outside of the upper cover; a fixing frame, which is detachably installed on the wire threading hole and is used to fix the wiring harness; a first glue potting layer, which is poured and filled in the gap between the wire threading hole and the wiring harness; a second glue potting layer, which is poured and filled in the wiring cavity and covers the fixing frame.

[0007] Preferably, the fixing frame comprises: a harness ring, which is installed concentrically with the threading hole; and a mounting ear, which is an integral structure with the harness ring and is fixed in a screw hole in the wiring cavity by bolts.

[0008] Preferably, the harness ring is provided with a cut which completely penetrates along the axial direction.

[0009] Preferably, the upper cover is a double-layer cover structure, comprising: a cover body, the top wall of which has a plurality of terminal through holes; a stacking cover, covering the top of the cover body, the side walls of the stacking cover having a plurality of plug-in interfaces corresponding one-to-one to the terminal through holes.

[0010] Preferably, the cover body and the stacking cover are detachable structures connected by threads.

[0011] Preferably, the cover body and the stacking cover are an integral structure.

[0012] The utility model has the following beneficial effects: the utility model sets a special wiring cavity in the upper cover, and the wiring harness enters the wiring cavity through the threading hole, is first fixed by a fixing frame, and then the first glue potting layer and the second glue potting layer are poured in sequence to fill and cover the wiring cavity, thereby realizing the sealing of the wiring part of the motor controller, and can effectively prevent external substances such as water vapor and dust from entering the wiring cavity, thereby improving the sealing performance, thereby protecting the safety of the wiring harness and the circuit board, and extending the service life of the motor controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the wiring harness after installation of the embodiment of the utility model.

[0014] Figure 2 It is an enlarged schematic diagram of the wiring harness after installation of the embodiment of the utility model (the first and second glue filling layers are hidden).

[0015] Figure 3 It is a schematic diagram of a fixing frame in an embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the upper cover in the embodiment of the utility model.

[0017] Figure 5 It is a schematic diagram of the installation of the upper cover in the embodiment of the utility model.

[0018] Wiring cavity 1; upper cover 2; threading hole 3; fixing frame 4; wiring harness 5; first glue potting layer 6; second glue potting layer 7; wiring harness ring 8; mounting ear 9; bolt 10; screw hole 11; cutout 12; cover body 13; terminal through hole 14; stacking cover 15; terminal socket 16. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the embodiments and drawings.

[0020] In the embodiment, Figures 1 to 5As shown, a wiring sealing structure of a motor controller includes: a wiring cavity 1, which is arranged on the inner side of the upper cover 2 of the motor controller; a threading hole 3, which is arranged on the cavity wall of the wiring cavity 1 and is connected with the outside of the upper cover 2; a fixing frame 4, which is detachably mounted on the threading hole 3 and is used to fix the wiring harness 5; a first glue potting layer 6, which is poured and filled in the gap between the threading hole 3 and the wiring harness 5; a second glue potting layer 7, which is poured and filled in the wiring cavity 1 and covers the fixing frame 4. In this embodiment, a special wiring cavity 1 is arranged in the upper cover 2, and the wiring harness 5 enters the wiring cavity 1 through the threading hole 3. It is first fixed by the fixing frame 4, and then the first glue potting layer 6 and the second glue potting layer 7 are poured in sequence to fill and cover the wiring cavity 1, so as to achieve the sealing of the wiring part of the motor controller, effectively prevent external substances such as water vapor and dust from entering the wiring cavity, improve the sealing performance, thereby protecting the safety of the wiring harness 5 and the circuit board, and extending the service life of the motor controller.

[0021] In the embodiment, Figure 2 , 3 As shown, the fixing frame 4 includes: a harness ring 8, which is installed in line with the threading hole 3; and a mounting ear 9, which is an integral structure with the harness ring 8 and is fixed in a screw hole 11 in the wiring cavity 1 by a bolt 10. The fixing frame 4 adopts a combined structure of the harness ring 8 and the mounting ear 9, which is fixed by the bolt 10 to ensure the stable fixation of the harness 5. This structure simplifies the installation process and improves the installation efficiency, while ensuring the safe connection of the harness 5 and avoiding the reduction of the sealing performance caused by the movement or falling off of the harness 5.

[0022] In the embodiment, Figure 3 As shown, the wire harness ring 8 is provided with a notch 12 that completely penetrates along the axial direction. In this embodiment, the inner opening of the wire harness ring 8 is smaller than the threading hole 3. After the notch 12 cuts the wire harness ring 8, a structure similar to an elastic clamp is formed to hold the wire harness 5 tightly. This structure is convenient for the wire harness 5 to be loaded into the wire harness ring 8, and can firmly fix wire harnesses 5 of different numbers and diameters.

[0023] In the embodiment, Figure 4 , 5 As shown, the upper cover 2 is a double-layer cover structure, including: a cover body 13, the top wall of which has a plurality of terminal through-holes 14; a stacked cover 15, which covers the upper part of the cover body 13, and the side wall of the stacked cover 15 has a plurality of terminal sockets 16 corresponding to the terminal through-holes 14. In this structure, the wiring terminals on the circuit board of the motor controller pass through the cover body 13 through the terminal through-holes 14, and the wiring terminals and the terminal through-holes 14 are sealed by sealing rubber rings or glue injection, and the terminal sockets 16 are convenient for connecting to the power supply. The stacked cover 15 of this embodiment has two functions, one is to shield and protect the wiring terminals, thereby improving the reliability and stability of the motor controller, and the other is to play an aesthetic role.

[0024] In the embodiment, Figure 4 ,5 As shown, the cover body 13 and the stacking cover 15 are a detachable structure connected by threads. The detachable structure decomposes the structure of the upper cover 2, which is suitable for controllers with complex overall wiring and facilitates the installation of wiring terminals. On the other hand, the cover body 12 and the stacking cover 15 are an integrated structure, which is convenient for one-time injection molding and helps reduce production costs.

[0025] Obviously, the above embodiments of the present invention are only examples for explaining the present invention, and are not intended to limit the implementation methods of the present invention. Other obvious changes or modifications derived from the essence of the present invention still fall within the protection scope of the present invention.

Claims

1. A motor controller wiring sealing structure, characterized in that: include: A wiring chamber (1) is arranged on the inner side of an upper cover (2) of a motor controller; A wire threading hole (3) is provided on the cavity wall of the wiring cavity (1) and is connected to the outside of the upper cover (2); A fixing frame (4) detachably mounted on the threading hole (3) and used to fix the wiring harness (5); A first glue potting layer (6) is poured and filled in the gap between the threading hole (3) and the wire harness (5); A second glue potting layer (7) is poured into and filled in the wiring cavity (1) and covers the fixing frame (4).

2. The motor controller wiring sealing structure according to claim 1, characterized in that: The fixing frame (4) comprises: The wire harness ring (8) is installed concentrically with the threading hole (3); The mounting ear (9) is an integral structure with the wiring harness ring (8) and is fixed in a screw hole (11) in the wiring cavity (1) by means of a bolt (10).

3. The motor controller wiring sealing structure according to claim 2, characterized in that: The harness ring (8) is provided with a cutout (12) that completely penetrates along the axial direction.

4. The motor controller wiring sealing structure according to claim 1, characterized in that: The upper cover (2) is a double-layer cover structure, comprising: A cover body (13), the top wall of which has a plurality of terminal through holes (14); A stacking cover (15) covers the cover body (13), and a side wall of the stacking cover (15) has a plurality of plug-in ports (16) corresponding one-to-one to the terminal through holes (14).

5. The motor controller wiring sealing structure according to claim 4, characterized in that: The cover body (13) and the stacking cover (15) are detachable structures connected by threads.

6. The motor controller wiring sealing structure according to claim 4, characterized in that: The cover body (13) and the stacking cover (15) are an integral structure.

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