Electrical installations

Abstract

The electrical device (electric motor) disclosed in this specification comprises: a housing body having an opening; a housing cover closing the opening; a wiring harness; and clips. Electrical components such as a rotor and stator are housed within the housing body. The wiring harness is routed along the back of the housing cover, opposite the stator. The clips are secured to the electrical components and face the back opening of the housing cover. The wiring harness passes through the clips. In other words, the clips secure the wiring harness in a designated position.

Description

Technical Field

[0001] The technology disclosed in this specification relates to an electrical device such as an electric motor. Background Technology

[0002] In electrical devices, such as electric motors, brackets are used to secure wire harnesses at predetermined positions within their housings. The bracket disclosed in Japanese Patent Application Publication No. 2024-108011 has a cylindrical body through which the wire harness passes and a mounting portion that secures the body to an electrical component inside the housing. Using this bracket requires the wire harness to pass through the bracket's body and then the bracket to be secured to the electrical component. Summary of the Invention

[0003] The bracket in Japanese Patent Application Publication No. 2024-108011 has a complex structure and installation process. This specification provides an electrical device that can fix a wire harness in a specified position with a simple structure and simple process within the housing of the electrical device.

[0004] The electrical device disclosed in this specification comprises: a housing body having an opening; a cover closing the opening; a wiring harness; and a clip. An electrical component is housed within the housing body. The wiring harness is routed along the back of the cover. The clip is secured to the electrical component and faces the back opening of the cover. The wiring harness passes through the clip. That is, the clip secures the wiring harness in a designated position.

[0005] In the electrical device disclosed in this specification, when the cover is installed on the housing body, the wiring harness is guided and secured in a predetermined position by clips. If the cover is installed on the housing body, the wiring harness is secured in a predetermined position. The wiring harness can be secured in a predetermined position with a simple procedure. The clips only need to open towards the back of the cover and have a simple structure. The electrical device disclosed in this specification can secure a wiring harness in a predetermined position within the housing with a simple structure and simple procedure.

[0006] A typical example of an electrical device is an electric motor. The electrical components housed within the housing are the stator and rotor of the electric motor, with clips mounted on resin coil end covers that cover the coil ends of the stator. The clips can be made of the same resin as the coil end covers.

[0007] The detailed description of the technology disclosed in this specification and further improvements will be described in the following "Detailed Description". Attached Figure Description

[0008] Hereinafter, with reference to the accompanying drawings, the features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described, in which the same reference numerals denote the same elements, and wherein:

[0009] Figure 1 These are the side and front views of the electrical device (electric motor) in the embodiment, in the coordinate system shown in the figure.

[0010] Figure 2 This is a side view after the cover has been separated from the main body of the casing.

[0011] Figure 3A This is a side view of the card in the variation example.

[0012] Figure 3B This is a side view of the card in the variation example.

[0013] Figure 3C This is a side view of the card in the variation example.

[0014] Figure 3D This is a side view of the card in the variation example. Detailed Implementation

[0015] The electrical device of the embodiment will be described with reference to the accompanying drawings. The electrical device of the embodiment is an electric motor 2. Hereinafter, "electric motor" will be simply referred to as "motor". Figure 1 The image shows a side view and a front view of motor 2. Figure 1 The left side shows a side view, and the right side shows a front view. The axis Ax of motor 2 is parallel to the X-axis of the coordinate system in the figure. Additionally, in Figure 1 In the image, motor 2 is cut off by a wavy line, omitting a portion of motor 2. Furthermore, in... Figure 1 In order to show the internal structure of the motor 2, the housing body 10 and the cover 20 are depicted with dashed lines.

[0016] The stator 13 and rotor 14 of the motor 2 are housed in the housing body 10. The housing body 10 is cylindrical and has an opening 10a at one end. The housing cover 20 closes the opening 10a. The housing cover 20 is fixed to the housing body 10 by bolts. In addition, a hole is provided in the center of the housing cover 20, through which the shaft 14a of the rotor 14 passes and extends to the outside of the housing cover 20.

[0017] The coil end 13a of the stator 13 is covered by a coil end cover 15. The coil end cover 15 is opposite to the back surface 20a of the housing cover 20. A clip 16 is mounted on the coil end cover 15. The coil end cover 15 and the clip 16 are made of the same type of resin.

[0018] The main body of the clip 16 has a U-shape, with the front end of the U facing the back 20a of the cover 20. In other words, the U-shaped clip 16 opens towards the back 20a of the cover 20.

[0019] Wiring harness 23 passes through the inside of the U-shape of clip 16. Wiring harness 23 is the signal line connecting speed sensor 22 and connector 21. Speed ​​sensor 22 measures the rotational speed of rotor 14. The sensor signal from speed sensor 22 is transmitted to connector 21 via wiring harness 23. A portion of connector 21 protrudes from the exterior of housing 20, and a cable (not shown) extending from the controller is connected to connector 21. The sensor signal from speed sensor 22 is transmitted to the controller via wiring harness 23, connector 21, and cable. Power can also be supplied from the controller to speed sensor 22 via wiring harness 23, connector 21, and cable.

[0020] The speed sensor 22 and connector 21 are fixed to the housing 20. The wiring harness 23 extends along the back surface 20a of the housing 20.

[0021] Ribs 24 are provided on the back 20a of the cover 20. The wire harness 23 passes through the inside of the U-shape of the clip 16 and is held by the clip 16 and the ribs 24. The wire harness 23 is fixed in a designated position by being held by the clips 16 and the ribs 24.

[0022] exist Figure 2 The diagram shows a side view of the cover 20 separated from the housing body 10. Before the cover 20 is assembled to the housing body 10, the wiring harness 23 is not fixed except at both ends, and therefore may wobble. In the motor 2, when the cover 20 is installed to the housing body 10, the wiring harness 23 is guided and fixed in a predetermined position by the clip 16. When the cover 20 is installed to the housing body 10, the wiring harness 23 is fixed in a predetermined position. The clip 16 only needs to face the opening of the cover 20 and has a simple structure. In particular, the wiring harness 23 is firmly fixed by the rib 24 provided on the back surface 20a of the cover 20 and the clip 16. Furthermore, the wiring harness 23 is simultaneously fixed to the clip 16 during the process of installing the cover 20 to the housing body 10. The technology of this embodiment enables the wiring harness to be fixed in a predetermined position within the housing of the motor 2 (electrical device) with a simple structure and a simple process. Here, "within the housing" refers to the space surrounded by the housing body 10 and the cover 20.

[0023] exist Figures 3A to 3D Several variations of the clip 16 are shown in the figure. Figure 3A 16a of the card and Figure 1 , 2The clip 16a has the same shape. Clip 16a has a U-shaped clip body 32 and a support post 31 supporting the clip body 32. The support post 31 is mounted on an electrical component in the housing body 10. In the embodiment, the support post 31 is mounted on a coil end cover 15 in the housing body 10. The coil end cover 15 is part of the electrical component. Clip 16a and coil end cover 15 are made of the same type of resin. Clip 16a can be formed simultaneously with the coil end cover 15. Clips 16b-16d, described later, are also the same.

[0024] Figure 3B The clip 16b has a V-shaped clip body 33 and a support post 31 supporting the clip body 33. If a V-shaped clip body 33 is used, the wire harness 23 is positioned at the narrow bottom of the V.

[0025] Figure 3C The clip 16c has a U-shaped clip body 34 and a support post 31 supporting the clip body 34. Return pins 34a are provided at both front ends of the U-shape of the clip body 34. The return pins 34a protrude from the inside of the U-shape. The return pins 34a prevent the wire harness 23 housed inside the clip body 34 from falling out.

[0026] Figure 3D The clip 16d has a U-shaped clip body 35 and a support post 31 supporting the clip body 35. A return pin 35a is provided at one front end of the U-shape of the clip body 35. The return pin 35a also prevents the wire harness 23 housed inside the clip body 35 from falling out. The clip 16d can be configured such that the return pin 35a is located below the wire harness 23 when the motor 2 is used.

[0027] Considerations related to the techniques described in the embodiments are explained. The electrical device in the embodiments is a motor 2. In the motor 2, the stator 13 and the rotor 14 are housed in the housing body 10. The stator 13 and the rotor 14 are examples of electrical components housed in the housing body 10 of the electrical device. The techniques of the embodiments can also be applied to electrical devices other than motors.

[0028] The housing body 10 is cylindrical and has an opening 10a at one end along the axial direction. The housing cover 20 blocks the opening 10a. The opening can be located at any position on the housing body 10.

[0029] One end of the wiring harness 23 is connected to the connector 21, and the other end is connected to the speed sensor 22. The connector 21 and the speed sensor 22 are fixed to the housing cover 20. The wiring harness 23 only needs to be fixed to the housing cover 20 at least once. More specifically, the wiring harness 23 only needs to be fixed to the housing cover 20 at least once, or to a structure (connector 21) attached to the housing cover 20. The other end of the wiring harness 23 can be a freely movable connector or fixed to a structure of the housing body 10. The wiring harness 23 only needs to be along the back surface 20a of the housing cover 20. The wiring harness 23 is connected to an electrical device related to the electrical components housed in the housing body 10. The wiring harness 23 can be a cable for transmitting electrical signals or power.

[0030] For example, one end of the wiring harness can be a temperature sensor fixed to the housing cover 20. The temperature sensor measures the internal temperature of the housing body 10. Alternatively, the temperature sensor measures the temperature of oil circulating in the housing body 10. The other end of the wiring harness can extend outward from a hole provided in the housing cover 20.

[0031] The clip 16 can be configured to support the underside of the wiring harness 23 when using the motor 2.

[0032] The following lists the features of the electrical device (motor 2) described in the embodiments.

[0033] The clip 16 is U-shaped or V-shaped and opens toward the back 20a of the cover 20. In other words, the clip 16 is U-shaped or V-shaped, with its two front ends facing the back 20a of the cover 20.

[0034] The clip 16 is secured to the housing body 10. More specifically, the clip 16 is secured to an electrical component (e.g., coil end cover 15) housed within the housing body 10. The wiring harness 23 runs along the back surface 20a of the housing cover 20 and passes through the clip 16.

[0035] The wire harness 23 is held by the structure (rib 24) on the back side 20a of the housing cover 20 and the clip 16. More specifically, the wire harness 23 is secured by the structure (rib 24) on the back side 20a of the housing cover 20 and the clip 16.

[0036] The wire harness 23 may also be secured without the ribs 24 by being held by the clips 16 and the back 20a of the cover 20.

[0037] The main bodies 34 and 35 of the clip are U-shaped or V-shaped, and at least one of their two front ends may be provided with a return pin 34a or 35a to prevent the wire harness 23 from falling off.

[0038] In addition to electrical components such as the stator 13 and rotor 14, other components (such as gear sets) can also be accommodated in the housing body 10.

[0039] The specific examples of the present invention have been described in detail above, but these are merely illustrative and do not limit the scope of the claims. The technology described in the claims includes technologies obtained by various modifications and alterations to the specific examples described above. The technical elements illustrated in this specification or drawings exert their technical usefulness individually or in various combinations, and are not limited to the combinations described in the claims at the time of application. Furthermore, the technology illustrated in this specification or drawings can achieve multiple objectives simultaneously, wherein achieving one objective is itself technically useful.

Claims

1. An electrical device, characterized in that, have: The main body of the housing has an opening and houses electrical components; A cover that closes the opening; A wiring harness, which is laid along the back of the housing cover; and A clip, which is fixed to the electrical device and has an opening facing the back, The wire harness passes through the clip.

2. The electrical device according to claim 1, characterized in that, The electrical component is the stator of an electric motor. The clip is mounted on a resin coil end cover that covers the coil end of the stator.

3. The electrical device according to claim 2, characterized in that, The clip is made of the same resin as the end cover of the coil.

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