CN114123631A - Electric control power interruption device - Google Patents

Electric control power interruption device Download PDF

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Publication number
CN114123631A
CN114123631A CN202111498752.1A CN202111498752A CN114123631A CN 114123631 A CN114123631 A CN 114123631A CN 202111498752 A CN202111498752 A CN 202111498752A CN 114123631 A CN114123631 A CN 114123631A
Authority
CN
China
Prior art keywords
shaft
sleeve
bearing
interruption device
power interruption
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111498752.1A
Other languages
Chinese (zh)
Inventor
邱毅凡
陈祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HASCO Powertrain Components Systems Shanghai Co Ltd
Original Assignee
HASCO Powertrain Components Systems Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HASCO Powertrain Components Systems Shanghai Co Ltd filed Critical HASCO Powertrain Components Systems Shanghai Co Ltd
Priority to CN202111498752.1A priority Critical patent/CN114123631A/en
Publication of CN114123631A publication Critical patent/CN114123631A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention discloses an electric control power interruption device which is arranged at the output shaft end of a driving motor, the driving motor transfers power to the electric control power interruption device through a driving motor shaft, and the electric control power interruption device controls the connection or disconnection of the power of the driving motor and the power of an output spline shaft. The invention has the advantages that the electric control power interruption device and the driving motor are coaxially arranged, only a small axial space is needed, and the matching application of the existing power assembly is convenient; through the matching of the guide rod and the guide structure, a good self-locking function is realized.

Description

Electric control power interruption device
Technical Field
The invention relates to an electric control power interruption device, in particular to an electric control power interruption device applied to pure electric and hybrid electric vehicles.
Background
The electric control power interruption device is mainly applied to pure electric and hybrid electric vehicles, and is responsible for disconnecting the power of the output shaft of the driving motor under the dragging working condition of the driving motor, eliminating the resistance moment generated by dragging the driving motor and effectively increasing the endurance mileage.
At present, new energy vehicles are still in a starting development stage, the existing vehicle types pay less attention to the resisting moment generated by dragging of a driving motor, and few vehicle types can carry devices for controlling the power interruption of the motor. This is where the application needs to be focused on.
Disclosure of Invention
The invention aims to provide an electric control power interruption device which is coaxially arranged with a driving motor and automatically controls the output and interruption of the power of an output shaft of the driving motor under corresponding working conditions.
In order to solve the above technical problems, the present invention provides an electrically controlled power interruption device, which is disposed at an output shaft end of a driving motor, the driving motor transfers power to the electrically controlled power interruption device through a driving motor shaft, and the electrically controlled power interruption device controls engagement or disengagement of power of the driving motor and power of an output spline shaft.
Automatically controlled power interrupting device includes small electric motor, casing, apron, key, gear sleeve, threaded sleeve, axle sleeve, output spline shaft, guide bar, a plurality of jump ring, a plurality of bearing and connection mounting, wherein:
the small motor, the small motor shaft crosses the motor shaft hole on the body, connect with pinion gear of the gear bush through the key, the small motor drives the pinion gear to rotate;
the gear sleeve is arranged in the shell, and a sliding step of the gear sleeve is in clearance fit with the inner wall of the shell, so that the gear sleeve and the shell are coaxially positioned and relatively rotate; the large gear and the small gear on the gear sleeve are in tooth-shaped meshing transmission, the small motor drives the small gear to rotate, and the small gear drives the gear sleeve to rotate through the large gear;
the threaded sleeve is arranged in the gear sleeve, external threads on the threaded sleeve are meshed with internal threads on the gear sleeve, and the rotation of the gear sleeve drives the axial translation of the threaded sleeve;
the shaft sleeve is connected with the threaded sleeve through a bearing, an inner hole of the bearing is matched with a bearing seat on the shaft sleeve, an outer circle of the bearing is matched with a bearing hole on the threaded sleeve, and the axial translation of the threaded sleeve drives the axial translation of the shaft sleeve;
the output spline shaft is arranged in the shell and is connected with the shell through a bearing, an inner hole of the bearing is matched with a bearing seat on the output spline shaft, an excircle of the bearing is matched with a bearing hole on the shell, the bearing seat of the output spline shaft is provided with another bearing, and the output spline shaft transmits power through the output spline;
the small motor controls the electric control power interruption device to execute the action of power connection and interruption, namely the small motor controls the axial position of the shaft sleeve, the internal spline on the shaft sleeve is only meshed with the shaft of the driving motor, and the power of the driving motor and the power of the output spline shaft are in a disconnected state; the axial translation of the shaft sleeve enables the internal spline on the shaft sleeve to be simultaneously meshed with the power control spline of the driving motor shaft and the power control spline of the output spline shaft, and the power of the driving motor and the power of the output spline shaft are in a joint state.
And the two sides of the axial position of the internal thread of the threaded sleeve are respectively provided with a limiting snap spring, so that the axial translation of the threaded sleeve is limited forwards and backwards.
The shaft sleeve and the threaded sleeve are respectively provided with a snap spring to limit the relative axial movement among the bearing, the shaft sleeve and the threaded sleeve, and ensure that the axial translation of the threaded sleeve drives the axial translation of the shaft sleeve.
The cover plate is installed on one side of the shell, a plurality of guide holes in the cover plate are matched with one ends of the plurality of guide rods one by one, and the cover plate and the shell are fixedly connected through rivet holes in the cover plate and rivet holes in the shell by the connecting fixing piece.
The other ends of the guide rods penetrate through the guide holes of the threaded sleeve and are arranged in the guide holes of the shell, so that the threaded sleeve only translates axially.
The plurality of connecting and fixing pieces penetrate through bolt holes in the small motor, and the small motor is fixed with the shell through threaded holes in the shell.
The positions of the mounting holes on the shell and the positions of the mounting holes on the cover plate correspond to each other one by one and are used as bolt holes for mounting the driving motor.
The driving motor transfers power to the electric control power interruption device through the driving motor shaft, the driving motor shaft is meshed with the internal spline on the shaft sleeve to transfer power, the end part of the driving motor shaft is provided with a bearing hole, and when the electric control power interruption device and the driving motor are installed together, the bearing hole at the end part of the driving motor shaft is matched with a bearing on a bearing seat of the output spline shaft, so that the coaxial work of the output spline shaft and the driving motor shaft is ensured.
When the electric control power interruption device is used for interrupting the power of the driving motor, the axial position of the shaft sleeve is controlled by the small motor and is positioned at the limit position close to one side of the driving motor, the internal spline on the shaft sleeve is only meshed with the shaft of the driving motor and is not in contact with the power control spline on the output spline shaft, so that the power of the driving motor and the power of the output spline shaft are in an interruption state.
When the electric control power interruption device connects the power of the driving motor, the axial position of the shaft sleeve is controlled by the small motor and moves from the limit position close to one side of the driving motor to the limit position far away from one side of the driving motor, the internal spline on the shaft sleeve is simultaneously meshed with the shaft of the driving motor and the power control spline, and the power of the driving motor is in a connection state with the power of the output spline shaft.
The invention has the following advantages:
1. the electric control power interruption device and the driving motor are coaxially arranged, only a small axial space is needed, and the matching application of the existing power assembly is facilitated;
2. the electric control power interruption device realizes a good self-locking function through the matching of the guide rod and the guide structure, does not need a small motor to continuously output torque in the power transmission process, does not cause axial movement of the shaft sleeve, and ensures the reliability of power transmission. If the self-locking function is not available, the shaft sleeve moves axially due to factors such as shaking of the whole vehicle and the like in the process of transmitting power by matching with the output spline shaft, so that the risk of disengagement of the output spline shaft exists, and the power transmission is interrupted;
3. the application of the electric control power interruption device further optimizes the endurance mileage of the new energy vehicle.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the assembly of the present invention assembled with a drive motor;
FIG. 2 is a schematic view of an assembly of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
description of the figures
1-driving a motor;
101-a drive motor shaft; 102-bearing bore a;
2-a small motor;
201-small motor shaft; 202-bolt holes;
3-a shell;
301-motor shaft hole; 302-a threaded hole;
303-inner wall; 304-pilot hole D;
305-bearing bore B; 306-rivet hole G;
307-mounting hole I;
4-cover plate;
401-pilot hole E; 402-rivet hole H;
403-mounting hole J;
a 5-bond;
6-pinion gear;
7-gear sleeve;
701-a bull gear; 702-a sliding step;
703-internal thread;
8-small motor bolt;
9-a guide rod;
10-a threaded sleeve;
1001-bearing hole C; 1002-pilot hole F;
1003-external threads;
11-a shaft sleeve;
1101-bearing seat O; 1102-internal splines;
12-clamp spring K; 13-clamp spring L;
14-bearing R; 15-clamp spring M;
16-clamp spring N; 17-bearing S;
18-bearing T;
19-output spline shaft;
1901-bearing seat P; 1902-a power control spline;
1903-bearing seat Q; 1904-output spline;
20-rivet.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Fig. 1 is a schematic view of the assembly of the present invention assembled with a driving motor, fig. 2 is a schematic view of the assembly of the present invention, and fig. 3 is a sectional view taken along line a-a of fig. 2. As shown in fig. 1 to 3, the present invention provides an electrically controlled power interruption device, which includes a small motor 2, a housing 3, a cover plate 4, a key 5, a pinion 6, a gear sleeve 7, a small motor bolt 8, a guide bar 9, a threaded sleeve 10, a shaft sleeve 11, a snap spring K12, a snap spring L13, a bearing R14, a snap spring M15, a snap spring N16, a bearing S17, a bearing T18, an output spline shaft 19, and a rivet 20.
The small motor 2 controls the electric control power interruption device to perform power connection and interruption actions, and a small motor shaft 201 penetrates through a motor shaft hole 301 in the shell 3 and is connected with the small gear 6 through a key 5. A plurality of small motor bolts 8 pass through the bolt holes 202 on the small motor 2, and the small motor 2 and the shell 3 are fixed through the threaded holes 302 on the shell 3.
The gear sleeve 7 is arranged in the shell 3, the sliding step 702 is in clearance fit with the inner wall 303, a large gear 701 on the gear sleeve 7 is in tooth-shaped meshing transmission with a small gear 6, the small motor 2 drives the small gear 6 to rotate, and the small gear 6 drives the gear sleeve 7 to rotate through the large gear 701.
The threaded sleeve 10 is installed in the gear sleeve 7, external threads 1003 on the threaded sleeve 10 are meshed with internal threads 703 on the gear sleeve 7, the plurality of guide rods 9 penetrate through the guide holes F1002 and are installed in the guide holes D304, the gear sleeve 7 rotates to drive the threaded sleeve 10 to axially translate, the guide rods 9 guarantee that the threaded sleeve 10 cannot rotate, and the snap springs K12 and N16 are installed on two sides of the axial position of the internal threads 703 to achieve front and rear limiting of axial translation of the threaded sleeve 10.
The shaft sleeve 11 is arranged in the threaded sleeve 10 and is connected with the threaded sleeve 10 through a bearing R14, an inner hole of the bearing R14 is matched with a bearing seat O1101 on the shaft sleeve 11, an outer circle of the bearing R14 is matched with a bearing hole C1001 on the threaded sleeve 10, a clamp spring L13 and a clamp spring M15 are respectively arranged on the shaft sleeve 11 and the threaded sleeve 10, relative axial movement between the bearing R14 and two parts, namely the shaft sleeve 11 and the threaded sleeve 10, is limited, and axial translation of the threaded sleeve 10 is guaranteed to drive the shaft sleeve 11 to axially translate.
The output spline shaft 19 is arranged in the shell 3 and is connected with the shell 3 through a bearing T18, an inner hole of the bearing T18 is matched with a bearing seat P1901 on the output spline shaft 19, an outer circle of the bearing T18 is matched with a bearing hole B305 on the shell 3, a bearing S17 is arranged on a bearing seat Q1903 of the output spline shaft 19, and the output spline shaft 19 transmits power through an output spline 1904.
The cover plate 4 is installed on one side of the shell 3, a plurality of guide holes E401 on the cover plate 4 are matched with one ends of a plurality of guide rods 9 one by one, and the rivet 20 rivets and fixes the cover plate 4 and the shell 3 through a rivet hole H402 on the cover plate 4 and a rivet hole G306 on the shell 3. The mounting holes I307 on the housing 3 and the mounting holes J403 on the cover plate 4 are positioned in one-to-one correspondence, and serve as bolt holes for mounting the drive motor 1.
As shown in fig. 1, the driving motor 1 transfers power to the electric control power interruption device through the driving motor shaft 101, the driving motor shaft 101 is engaged with the internal spline 1102 on the shaft sleeve 11 to transfer power, the end of the driving motor shaft 101 is provided with a bearing hole a102, and when the electric control power interruption device is mounted with the driving motor 1, the bearing hole a102 is matched with the bearing S17, so that the coaxial work of the output spline shaft 19 and the driving motor shaft 101 is ensured.
When the electrically controlled power interruption device interrupts the power of the driving motor 1, the axial position of the shaft sleeve 11 is controlled by the small motor 2 and is located at a limit position close to one side of the driving motor 1, the internal spline 1102 on the shaft sleeve 11 is only meshed with the driving motor shaft 101 and is not in contact with the power control spline 1902 on the output spline shaft 19, so that the power of the driving motor 1 and the power of the output spline shaft 19 are in an interrupted state.
When the electrically controlled power interruption device engages the power of the driving motor 1, the axial position of the shaft sleeve 11 is controlled by the small motor 2, and moves from the limit position on the side close to the driving motor 1 to the limit position on the side far from the driving motor 1, the internal spline 1102 on the shaft sleeve 11 is simultaneously engaged with the driving motor shaft 101 and the power control spline 1902, and the power of the driving motor 1 and the power of the output spline shaft 19 are in an engaged state.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An electrically controlled power interruption device is characterized in that: the electric control power interruption device is arranged at the output shaft end of the driving motor, the driving motor transfers power to the electric control power interruption device through a driving motor shaft, and the electric control power interruption device controls the connection or disconnection of the power of the driving motor and the power of the output spline shaft.
2. An electrically controlled power interruption device according to claim 1, wherein: the electric control power interruption device comprises a small motor, a shell, a key, a gear sleeve, a thread sleeve, a shaft sleeve and an output spline shaft, wherein:
the small motor, the small motor shaft crosses the motor shaft hole on the body, connect with pinion gear of the gear bush through the key, the small motor drives the pinion gear to rotate;
the gear sleeve is arranged in the shell, a large gear and a small gear on the gear sleeve are in tooth-shaped meshing transmission, and the small gear drives the gear sleeve to rotate through the large gear;
the threaded sleeve is arranged in the gear sleeve, external threads on the threaded sleeve are meshed with internal threads on the gear sleeve, and the rotation of the gear sleeve drives the axial translation of the threaded sleeve;
the shaft sleeve is connected with the threaded sleeve through a bearing, and the axial translation of the threaded sleeve drives the axial translation of the shaft sleeve;
the output spline shaft is arranged in the shell and is connected with the shell through a bearing, and the output spline shaft transmits power through the output spline;
the axial position of the shaft sleeve is controlled by a small motor, an internal spline on the shaft sleeve is only meshed with a drive motor shaft, and the power of the drive motor and the power of the output spline shaft are in a disconnected state; the axial translation of the shaft sleeve enables the internal spline on the shaft sleeve to be simultaneously meshed with the power control spline of the driving motor shaft and the power control spline of the output spline shaft, and the power of the driving motor and the power of the output spline shaft are in a joint state.
3. The electrically controlled power interruption device of claim 2, wherein: and two sides of the axial position of the inner thread of the threaded sleeve are respectively provided with a limiting snap spring.
4. The electrically controlled power interruption device of claim 2, wherein: the shaft sleeve and the threaded sleeve are respectively provided with a snap spring to limit the relative axial movement among the bearing, the shaft sleeve and the threaded sleeve.
5. The electrically controlled power interruption device of claim 2, wherein: the sliding steps of the gear sleeve are in clearance fit with the inner wall of the shell.
6. The electrically controlled power interruption device of claim 2, wherein: the bearing is connected with the shaft sleeve, an inner hole of the bearing is matched with a bearing seat on the shaft sleeve, and an excircle of the bearing is matched with a bearing hole on the threaded sleeve.
7. The electrically controlled power interruption device of claim 2, wherein: the bearing is characterized in that the output spline shaft is connected with the shell, an inner hole of the bearing is matched with a bearing seat on the output spline shaft, an excircle of the bearing is matched with a bearing hole on the shell, and the bearing seat of the output spline shaft is provided with another bearing.
8. The electrically controlled power interruption device of claim 2, wherein: a cover plate is installed on one side of the shell, and a plurality of guide holes in the cover plate are matched with one ends of a plurality of guide rods one by one.
9. The electrically controlled power interruption device of claim 8, wherein: the other ends of the guide rods penetrate through the guide holes of the threaded sleeve and are arranged in the guide holes of the shell, so that the threaded sleeve only translates axially.
10. The electrically controlled power interruption device of claim 8, wherein: the shell is connected with the small motor, and the positions of the mounting holes in the shell and the mounting holes in the cover plate correspond to each other one by one and are used as bolt holes for mounting the driving motor.
CN202111498752.1A 2021-12-09 2021-12-09 Electric control power interruption device Pending CN114123631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111498752.1A CN114123631A (en) 2021-12-09 2021-12-09 Electric control power interruption device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111498752.1A CN114123631A (en) 2021-12-09 2021-12-09 Electric control power interruption device

Publications (1)

Publication Number Publication Date
CN114123631A true CN114123631A (en) 2022-03-01

Family

ID=80363731

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111498752.1A Pending CN114123631A (en) 2021-12-09 2021-12-09 Electric control power interruption device

Country Status (1)

Country Link
CN (1) CN114123631A (en)

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