Structure for connecting engine to hybrid transmission

Patent metadata

Field	Value
Publication number	US-11498407-B2
Application number	US-202017113788-A
Country	US
Kind code	B2
Filing date	Dec 7, 2020
Priority date	Jul 6, 2020
Publication date	Nov 15, 2022
Grant date	Nov 15, 2022

Abstract

Provided is a structure for connecting an engine to a hybrid transmission, the structure including: a connecting unit connected to a rotor shaft at the opposite side and having an edge portion connected to a mass body by a connecting plate; and a drive plate positioned at a side close to a crank shaft so as to be opposite to the connecting unit, the drive plate being configured to connect the mass body and the crank shaft.

First claim

What is claimed is:

1. A structure for connecting an engine to a hybrid transmission, the structure comprising:
a connecting unit connected to a rotor shaft located at an opposite side of the connecting unit, the connecting unit having an edge portion connected to a mass body by a connecting plate; and
a drive plate positioned at a side close to a crank shaft so as to be placed opposite to the connecting unit, the drive plate being configured to connect the mass body to the crank shaft,
wherein the connecting unit is a flange, and one surface of the flange is connected to one surface of the rotor shaft,
wherein a bolt hole is formed in one surface of the flange along a pitch circle that forms a concentric circle with a center of one surface of the flange, and
wherein the flange is connected to the rotor shaft by a bolt coupled to the bolt hole.

2. The structure of claim 1 , wherein splines are formed on one surface of the flange at a periphery of the bolt hole.

3. The structure of claim 2 , wherein splines corresponding to the splines of the flange are provided formed on one surface of the rotor shaft.

4. A structure for connecting an engine to a hybrid transmission, the structure comprising:
a connecting unit connected to a rotor shaft located at an opposite side of the connecting unit, the connecting unit having an edge portion connected to a mass body by a connecting plate; and
a drive plate positioned at a side close to a crank shaft so as to be placed opposite to the connecting unit, the drive plate being configured to connect the mass body to the crank shaft,
wherein the connecting unit is a flange, and one surface of the flange is connected to one surface of the rotor shaft, and
wherein the crank shaft is connected to a boss located at a center of the drive plate by a first bolt, and an edge portion of the drive plate is connected to the mass body a second bolt.

5. A structure for connecting an engine to a hybrid transmission, the structure comprising:
a connecting unit connected to a rotor shaft located at an opposite side of the connecting unit, the connecting unit having an edge portion connected to a mass body by a connecting plate; and
a drive plate positioned at a side close to a crank shaft so as to be placed opposite to the connecting unit, the drive plate being configured to connect the mass body to the crank shaft,
wherein a housing partition wall is positioned between a motor and the mass body, and between the motor and the connecting plate,
wherein a hub is positioned at a center of the housing partition wall so as to surround the rotor shaft, and
wherein an oil seal for providing fluid tightness is positioned between an outer diameter of the rotor shaft and an inner diameter of the hub.

6. The structure of claim 1 , wherein the connecting unit is a first connecting shaft,
wherein the first connecting shaft comprises:
a first extension portion connected to the rotor shaft by means of splines while penetrating an inside of the rotor shaft; and
a second extension portion extending in a direction from the first extension portion to the crank shaft to be inserted into the crank shaft, and
wherein a locking nut is thread-coupled to an exposed portion of the first extension portion which passes the inside of the rotor shaft and is exposed to an outside of the rotor shaft, and the locking nut is in close contact with an opposite surface of the rotor shaft,
such that the first connecting shaft is locked.

7. The structure of claim 5 , wherein the connecting unit is a second connecting shaft,
wherein the second connecting shaft is configured to be inserted into the rotor shaft and connected to the rotor shaft by means of splines,
wherein a bolt is thread coupled to an end surface of the second connecting shaft, and a locking plate is coupled to the bolt and is configured to be inserted into a first insertion portion formed on an opposite surface of the rotor shaft to simultaneously come into close contact with opposite surfaces of the rotor shaft and the second connecting shaft, such that the second connecting shaft is locked, and
wherein an O-ring is pressed against the locking plate to provide fluid tightness on a portion where an end surface of the rotor shaft is connected to the end surface of the second connecting shaft means of the splines.

8. The structure of claim 5 , wherein the connecting unit is a connecting nut,
wherein the connecting nut is connected to an outer diameter of the rotor shaft by means of splines, and
wherein when a bolt is coupled to an opposite surface of the rotor shaft, the locking plate coupled to the bolt is inserted into a second insertion portion formed on an opposite surface of the connecting nut, and the rotor shaft and the opposite surface of the connecting nut simultaneously come into close contact with each other, such that the connecting nut is locked.

Assignees

• Hyundai Transys Inc

Inventors

• Kim Tae Hoon

Classifications

• F16D2001/062

  characterised by adaptors where hub bores being larger than the shaft · CPC title

• B60K2006/4825

  Electric machine connected or connectable to gearbox input shaft · CPC title

• B60Y2306/09

  Reducing noise · CPC title

• Y02T10/62

  Hybrid vehicles · CPC title

• B60K6/405 Primary

  Housings · CPC title