JP2023111416A5

JP2023111416A5 -

Info

Publication number: JP2023111416A5
Application number: JP2022013266A
Authority: JP
Filing date: 2022-01-31
Publication date: 2023-09-04

Description

本発明では、ハウジング凸部がケース凹部に嵌合するようにしてハウジングをケースの内部空間に設けることにより、ハウジングをケースに対し相対回転不能に固定できる。また、ハウジングの回り止めのためにハウジングに貫通穴およびピンを設ける必要がなく、部材点数の増大を抑制できるとともに、ハウジングを変速機ケースの内部空間に設ける場合であっても、変速機ケース内の変速機オイル等の液体が貫通穴を経由してハウジングの収容空間に侵入するといった事態を回避できる。さらに、ハウジング凸部およびハウジング凹部は、ハウジングの肉厚の小さな部位に形成できるため、例えばプレス等の塑性加工により安価に形成可能であり、ハウジングの軸長を小さくすることができる。
ハウジング板部は、環状に形成されている。ハウジング凸部は、ハウジング板部の軸から径方向に所定距離離れた位置に形成されている。 In the present invention, by providing the housing in the internal space of the case so that the housing convex portion fits into the case concave portion, the housing can be fixed to the case so as not to rotate relative to the case. In addition, it is not necessary to provide through holes and pins in the housing to prevent the housing from rotating, and an increase in the number of parts can be suppressed. It is possible to avoid a situation in which liquid such as transmission oil enters the accommodation space of the housing via the through hole. Furthermore, since the housing projections and housing recesses can be formed in portions of the housing having a small wall thickness, they can be formed at low cost by plastic working such as pressing, and the axial length of the housing can be reduced.
The housing plate portion is formed in an annular shape. The housing convex portion is formed at a position radially spaced apart from the axis of the housing plate portion by a predetermined distance.

Claims

an engagement state between the first transmission portion (61) and the second transmission portion (62) that are capable of relative rotation, allowing transmission of torque between the first transmission portion and the second transmission portion; A clutch actuator (1) for use in a clutch device (1) comprising a clutch (70) that changes between a disengaged state and a disengaged state that interrupts transmission of torque between a first transmission section and a second transmission section. ,
a housing plate portion (122) provided in the internal space of a case (11) mounted on a vehicle and capable of abutting against a case plate portion (112) which is a part of the case; a housing (12) having a housing space (120) formed on the side opposite to the case plate;
an electric motor (20) provided in the accommodation space and capable of outputting torque when energized;
a rotary translation unit (2) capable of converting rotary motion due to torque from the electric motor into translational motion and changing the state of the clutch to an engaged state or a non-engaged state;
The housing is
a housing projecting portion (172) projecting from the surface of the housing plate portion on the side of the case plate portion and formed so as to be fitted into the case recess portion (183) of the case;
having a housing recess (173) recessed from the surface of the housing plate portion opposite to the housing protrusion;
The housing plate portion is formed in an annular shape,
The housing convex portion is formed at a position radially away from the axis of the housing plate portion by a predetermined distance .

2. A clutch actuator according to claim 1, wherein said housing convex portion is capable of restricting relative rotation of said housing with respect to said case by fitting into said case concave portion.

3. A clutch actuator according to claim 1, wherein said housing convex portion is formed at a position radially away from the rotating shaft of said electric motor by a predetermined distance.

The housing has a housing inner cylindrical portion (121) cylindrically extending from an inner edge portion of the housing plate portion,
The electric motor has a rotor (23) rotatably supported by the inner cylindrical portion of the housing,
4. The case according to any one of claims 1 to 3, wherein the case has a case inner cylindrical portion (111) extending cylindrically from an inner edge portion of the case plate portion and positioned radially inward of the housing inner cylindrical portion. clutch actuator.

The housing is
a housing vent hole (175) connecting the bottom surface of the housing concave portion and the end surface of the housing convex portion and communicating the accommodating space and the external space of the housing;
A clutch actuator according to any one of claims 1 to 4, further comprising a breathing filter (6) provided in said housing recess so as to cover said housing vent and through which gas can pass.

A distance (T1) between the bottom surface of the housing concave portion and the end surface of the housing convex portion is the same as the plate thickness (T2) of the portion of the housing plate portion radially outside the housing convex portion . A clutch actuator according to any one of Claims 1 to 3 .

2. The recessed portion of the case is formed in an elongated shape such that an inner diameter (R1) along the radial direction of the housing plate portion is larger than an inner diameter (R2) along the direction orthogonal to the radial direction of the housing plate portion. 7. The clutch actuator according to any one of 6 .

is provided between the housing plate portion and the case plate portion on the radially outer side of the housing convex portion when viewed in the plate thickness direction of the housing plate portion, and extends between the housing plate portion and the case plate portion. A clutch actuator according to any one of claims 1 to 7 , comprising an annular sealing member (7) that can be kept airtight or liquid-tight.

A method for manufacturing a clutch actuator according to any one of claims 1 to 8 ,
A method of manufacturing a clutch actuator including a plastic working step of simultaneously forming the housing convex portion and the housing concave portion by plastic working.