CN208760400U - Electric car and its integrated dynamic assembly - Google Patents
Electric car and its integrated dynamic assembly Download PDFInfo
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- CN208760400U CN208760400U CN201821509958.3U CN201821509958U CN208760400U CN 208760400 U CN208760400 U CN 208760400U CN 201821509958 U CN201821509958 U CN 201821509958U CN 208760400 U CN208760400 U CN 208760400U
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- input shaft
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Abstract
The utility model relates to a kind of electric car and its integrated dynamic assemblies, the one end of reducer input shaft far from input shaft bearing does not pass through the inner wall that bearing is installed on retarder chamber, number of bearings can be reduced compared with power assembly in the prior art, to simplify structure and reduce cost.In addition, one end of reducer input shaft is protruded into motor cavity and is connect with motor output shaft spline.On the one hand, due to the nearly reducer input shaft of the second output Bearing support, therefore the second output bearing also can provide support to reducer input shaft while supporting motor output shaft.Another party, since motor output shaft and reducer input shaft transmit torque by spline connection, and spline connection has stronger radial position-limiting action, therefore the two can also be supported mutually.Therefore, the reliability in transmission process can't be affected.As it can be seen that above-mentioned electric car and its integrated dynamic assembly are while cost is reduced, higher reliability is also taken into account.
Description
Technical field
The utility model relates to technical field of new energy, in particular to a kind of electric car and its integrated dynamic are total
At.
Background technique
Motor, retarder, controller exist all in the form of individual cabinet in traditional automobile driving system, therefore are difficult to full
Foot is at present to electric vehicle structure densification, light-weighted demand.Therefore, integrated power assembly will be that electric car drives
The development trend of dynamic system.Integrated power assembly is referred to driving motor and retarder (or further including controller)
It is integrated into a shell.Wherein, driving motor output shaft both ends are respectively arranged with bearing, and the input shaft both ends of retarder are also divided
Bearing is not provided with it.
Currently, in the power assembly of design integration, frequently with the mode for reducing the simplied system structures such as number of bearings
To achieve the purpose that control cost.Although affecting it however, the cost of integrated dynamic assembly can be reduced after simplifying structure
The service performance of script and service life cause the reliability of existing integrated dynamic assembly to substantially reduce.
Utility model content
Based on this, it is necessary to aiming at the problem that existing integrated dynamic assembly cannot be considered in terms of cost and reliability, provide one
Kind cost is relatively low and the higher integrated dynamic assembly of reliability and electric car.
A kind of integrated dynamic assembly, comprising:
Shell in hollow structure has motor cavity and retarder chamber；
Driving assembly, including motor output shaft, the first output bearing and the second output bearing, the motor output shaft receiving
In in the motor cavity, and both ends pass through the first output bearing respectively and the second output bearing is rotatably installed on
The inner wall of the motor cavity；
Reducer assemblies, including reducer input shaft and input shaft bearing, one end of the reducer input shaft are contained in institute
It is intracavitary to state retarder, the other end protrudes into the motor cavity, and the reducer input shaft passes through far from one end of the motor cavity
The input shaft bearing is rotatably installed on the inner wall of the retarder chamber；
Wherein, the second output bearing is located at the motor output shaft close to one end of the retarder chamber, and described
The one end of reducer input shaft far from the input shaft bearing is connect with one end spline of the motor output shaft.
The shell is integrally formed structures in one of the embodiments, and the inside of the shell includes having
The enclosure interior is divided into the motor cavity and the retarder chamber by the partition of through-hole.
It states reducer input shaft in one of the embodiments, to be arranged in the through-hole of the partition, and the retarder
Shaft seal assembly is provided between input shaft and the partition.
The edge of the bulkhead through-hole is to the motor cavity inner bending in one of the embodiments, to form sleeve knot
Structure, the reducer input shaft are arranged in the tube-in-tube structure, and the second output bearing is fastened in tube-in-tube structure.Institute
It states
The inner wall of the motor cavity is set to annular convex platform in one of the embodiments, and the annular convex platform surrounds shape
At card slot, the first output bearing is fastened in the card slot.
The inner wall of the card slot is formed with retention bead in one of the embodiments, and described first exports the outer of bearing
Surface is formed with limiting slot, and the retention bead is fastened in limiting slot.
The motor output shaft is formed with outer flower far from one end of the first output bearing in one of the embodiments,
Key, the reducer input shaft are formed with internal spline, the internal spline and the external splines far from one end of the input shaft bearing
Engagement, so that the reducer input shaft is connect with the motor output shaft spline.
The motor output shaft is formed with interior flower far from one end of the first output bearing in one of the embodiments,
Key, the reducer input shaft are formed with external splines, the internal spline and the external splines far from one end of the input shaft bearing
Engagement, so that the reducer input shaft is connect with the motor output shaft spline.
The second output bearing is located at the motor output shaft in one of the embodiments, and the retarder inputs
The junction of axis, and the motor output shaft and the reducer input shaft are arranged in the second output bearing.
A kind of electric car, including the integrated dynamic assembly as described in any one of above preferred embodiment.
Above-mentioned electric car and its integrated dynamic assembly, reducer input shaft do not pass through axis far from one end of input shaft bearing
The inner wall for being installed on retarder chamber is held, number of bearings can be reduced compared with power assembly in the prior art, to simplify knot
Structure simultaneously reduces cost.In addition, one end of reducer input shaft is protruded into motor cavity and is connect with motor output shaft spline.One side
Face, due to the second nearly reducer input shaft of output Bearing support, therefore the second output bearing can while supporting motor output shaft,
Support is provided to reducer input shaft.Another party, since motor output shaft and reducer input shaft are transmitted by spline connection
Torque, and spline connection has stronger radial position-limiting action, therefore the two can also be supported mutually.Therefore, in transmission process can
It can't be affected by property.As it can be seen that above-mentioned electric car and its integrated dynamic assembly are while cost is reduced, also take into account
Higher reliability.
Detailed description of the invention
Fig. 1 is the half-sectional view of integrated dynamic assembly in the utility model preferred embodiment；
Fig. 2 is the half-sectional view of integrated dynamic assembly in another embodiment of the utility model.
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiment described herein.On the contrary, purpose of providing these embodiments is makes to the utility model
The understanding of disclosure is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement are for illustrative purposes only.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
The utility model provides a kind of electric car and integrated dynamic assembly.Please refer to Fig. 1 and Fig. 2, electric car
Including integrated dynamic assembly 100.Integrated dynamic assembly 100 provides power for electric car, and realizes speed change simultaneously.
Referring to Fig. 1, the integrated dynamic assembly 100 in the utility model preferred embodiment includes shell 110, drives
Dynamic component 120 and reducer assemblies 130.
Shell 110 is in hollow structure, internal to have motor cavity (figure is not marked) and retarder chamber (figure is not marked).Wherein, electric
Machine cavity and retarder chamber are mutually isolated.Shell 110 is generally formed by metal or its alloy, mechanical strength with higher.
Specifically in the present embodiment, shell 110 is integrally formed structures, and the inside of shell 110 includes partition 111,
Motor cavity and retarder chamber will be divided into inside shell 110.Wherein, through-hole (not shown) is offered on partition 111.One at
Type is conducive to be promoted the integral strength of shell 110, and simplifies production technology, to reduce cost.
Driving assembly 120 includes that motor output shaft 121, first exports bearing 123 and the second output bearing 125.Motor is defeated
Shaft 121 is generally formed by high duty metals such as steel, and the first output bearing 123 and the second output bearing 125 are located in motor cavity.
In addition, to realize driving function, driving assembly 120 further includes generally the components such as the stator being contained in motor cavity, rotor.
Further, motor output shaft 121 is contained in motor cavity, and both ends pass through respectively the first output bearing 123 and
Second output bearing 125 is rotatably installed on the inner wall of motor cavity.It should be pointed out that the first output bearing 123 and second
Output bearing 125 is intended merely to the different calls for supporting the bearing of motor output shaft 121 to distinguish and using.Obviously,
The structure of one output bearing 123 and the second output bearing 125 can be identical.
Reducer assemblies 130 include reducer input shaft 131 and input shaft bearing 133.In addition, subtracting to realize deceleration
Fast device assembly 130, which may also include, is contained in the driving members such as the intracavitary gear of retarder.
One end of reducer input shaft 131 is contained in that retarder is intracavitary, and the other end protrudes into motor cavity.That is, slowing down
131 part of device input shaft is located in motor cavity.Specifically in the present embodiment, reducer input shaft 131 is arranged in the logical of partition 111
Hole.Moreover, the one end of reducer input shaft 131 far from motor cavity is rotatably installed on retarder chamber by input shaft bearing 133
Inner wall.Wherein, reducer input shaft 131 is generally arranged in parallel with motor output shaft 121, and the second output bearing 125 is located at electricity
Machine output shaft 121 is close to one end of retarder chamber.
It is installed in retarder chamber as it can be seen that the one end of reducer input shaft 131 far from input shaft bearing 133 does not pass through bearing
Wall can reduce number of bearings compared with power assembly in the prior art, to simplify structure and reduce cost.
In the present embodiment, shaft seal assembly 113 is provided between reducer input shaft 131 and partition 111.Due to driving
120 need of work of component is unable to oil inlet without oil environment in motor cavity；And retarder is intracavitary, is typically filled with lubricating oil.Cause
This, shaft seal assembly 113 can avoid the intracavitary lubricating oil of retarder through the gap between reducer input shaft 131 and partition 111
Into in motor cavity.
Wherein, one end spline of the one end of reducer input shaft 131 far from input shaft bearing 133 and motor output shaft 121 connects
It connects.It is connect that is, one end of motor output shaft 121 is located at one end spline in motor cavity with reducer input shaft 131.Therefore, electric
Machine output shaft 121 can realize that torque transmits between reducer input shaft 131.
In the present embodiment, motor output shaft 121 is formed with external splines far from one end of the first output bearing 123 and (schemes not
Mark), reducer input shaft 131 is formed with internal spline far from one end of input shaft bearing 133 (figure is not marked).Internal spline is nibbled with external splines
It closes, so that reducer input shaft 131 is connect with 121 spline of motor output shaft.
Specifically, one end of reducer input shaft 131 is initially formed integrated pipe sleeve, then internal spline is formed in pipe sleeve.Into
One step, one end that motor output shaft 121 is formed with external splines is contained in pipe sleeve, and is engaged with internal spline realization.
Since interior external splines is respectively formed in reducer input shaft 131 and motor output shaft 121 itself, so there is no need to additionally make
With spline connection component.On the one hand, the bonding strength that reducer input shaft 131 is directly engaged with motor output shaft 121 is higher；Separately
On the one hand, it due to reducing number of parts, can also further reduce the cost.
Referring to Fig. 2, in another embodiment, motor output shaft 121 is formed far from one end of the first output bearing 123
Have internal spline (figure is not marked), reducer input shaft 131 is formed with external splines far from one end of input shaft bearing 133 (figure is not marked).It is interior
Spline is engaged with external splines, so that reducer input shaft 131 is connect with 121 spline of motor output shaft.
The difference of the embodiment and upper one embodiment is: the position of internal spline and external splines is exchanged, remaining structure phase
Together.
Since the second output bearing 125 is close to reducer input shaft 121, therefore the second output bearing 125 can be in support motor
While output shaft 121, support also is provided to reducer input shaft 131.Another party, due to motor output shaft 121 and retarder
Input shaft 131 transmits torque by spline connection, and spline connection has stronger radial position-limiting action, therefore the two can also phase
Mutually support.Therefore, even if reducer input shaft 131 reduces a spring bearing, but the reliability in transmission process can't
It is affected.
In the present embodiment, the second output bearing 125 is located at the connection of motor output shaft 121 and reducer input shaft 131
Place, and motor output shaft 121 and reducer input shaft 131 are arranged in the second output bearing 125.
At this point, effective twelve Earthly Branches can be achieved to motor output shaft 121 and reducer input shaft 131 in the second output bearing 125
Support.Especially since the motor output shaft 121 in the present embodiment partly overlaps with reducer input shaft 131, therefore one second defeated
Bearing 125 can play the role of being equivalent to two spring bearings out.Therefore, motor output shaft 121 and reducer input shaft 131 it
Between the stability that is driven further strengthen.
In the present embodiment, the inner wall of motor cavity is set to annular convex platform 115, and annular convex platform 115 (is schemed around card slot is formed
Do not mark), the first output bearing 123 is fastened in card slot.
Specifically, card slot can play position-limiting action to the first output bearing 123, prevent the first output bearing 123 from supporting
It is subjected to displacement in the process, to guarantee the stability that the first output bearing 123 supports motor output shaft 121.In addition, using ring
On the one hand shape boss 115 can form card slot and form limit；On the other hand, annular convex platform 115, which is equivalent to, is set to motor cavity wall
Reinforcing rib structure, thus prevent 110 inner wall of shell because first output bearing 123 bear torsion it is excessive due to deform.
Further, in the present embodiment, annular convex platform 115 is formed with retention bead towards the surface inside card slot
1152, the outer surface of the first output bearing 123 is formed with limiting slot (not shown), and retention bead 1152 is fastened in limiting slot.
Retention bead 1152 and limiting slot cooperate, and the radially, circumferentially realization that further can export bearing 123 to first limits
Position.Therefore, the stability that the first output bearing 123 supports motor output shaft 121 can further be promoted.
In the present embodiment, the edge of 111 through-hole of partition is to motor cavity inner bending, to form tube-in-tube structure 117, retarder
Input shaft 131 is arranged in tube-in-tube structure 117, and the second output bearing 125 is fastened in tube-in-tube structure 117.
Specifically, tube-in-tube structure 117 can to reducer input shaft 131 far from one end of input shaft bearing 133 play limit and
Supporting role avoids reducer input shaft 131 from generating swing because of single-bearing support.Further, since the second output bearing 125 needs
Motor output shaft 121 and reducer input shaft 131 are supported, therefore it is larger by torsion.Tube-in-tube structure 117 may be used also
To second output bearing 125 play position-limiting action so that second output bearing 125 support it is more stable.
Above-mentioned electric car and its integrated dynamic assembly 100, reducer input shaft 131 far from input shaft bearing 133 one
End is not installed on the inner wall of retarder chamber by bearing, can reduce number of bearings compared with power assembly in the prior art,
To simplify structure and reduce cost.In addition, one end of reducer input shaft 131 is protruded into motor cavity and and motor output shaft
The connection of 121 splines.On the one hand, since the second output bearing 125 is close to reducer input shaft 131, therefore the second output bearing 125 can
While supporting motor output shaft 121, support also is provided to reducer input shaft 131.Another party, due to motor output shaft
121 transmit torque by spline connection with reducer input shaft 131, and spline connection has stronger radial position-limiting action,
Therefore the two can also be supported mutually.Therefore, the reliability in transmission process can't be affected.As it can be seen that above-mentioned electric car and
Its integrated power assembly 100 while cost is reduced, also takes into account higher reliability.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of integrated dynamic assembly characterized by comprising
Shell in hollow structure has motor cavity and retarder chamber；
Driving assembly, including motor output shaft, the first output bearing and the second output bearing, the motor output shaft are contained in institute
State in motor cavity, and both ends pass through the first output bearing respectively and the second output bearing be rotatably installed on it is described
The inner wall of motor cavity；
Reducer assemblies, including reducer input shaft and input shaft bearing, one end of the reducer input shaft are contained in described subtract
Fast device is intracavitary, and the other end protrudes into the motor cavity, and the one end of the reducer input shaft far from the motor cavity is described in
Input shaft bearing is rotatably installed on the inner wall of the retarder chamber；
Wherein, the second output bearing is located at the motor output shaft close to one end of the retarder chamber, and the deceleration
The one end of device input shaft far from the input shaft bearing is connect with one end spline of the motor output shaft.
2. integrated dynamic assembly according to claim 1, which is characterized in that the shell is integrally formed structures,
And the inside of the shell includes the partition with through-hole, and the enclosure interior is divided into the motor cavity and the deceleration
Device chamber.
3. integrated dynamic assembly according to claim 2, which is characterized in that the reducer input shaft is arranged in described
In the through-hole of partition, and shaft seal assembly is provided between the reducer input shaft and the partition.
4. integrated dynamic assembly according to claim 2, which is characterized in that the edge of the bulkhead through-hole is to the electricity
Machine cavity inner bending, to form tube-in-tube structure, the reducer input shaft is arranged in the tube-in-tube structure, and second output
Bearing is fastened in tube-in-tube structure.
5. integrated dynamic assembly according to claim 1, which is characterized in that the inner wall of the motor cavity is set to annular
Boss, the annular convex platform are fastened in the card slot around card slot, the first output bearing is formed.
6. integrated dynamic assembly according to claim 5, which is characterized in that the inner wall of the card slot is formed with limit convex
It rises, the outer surface of the first output bearing is formed with limiting slot, and the retention bead is fastened in limiting slot.
7. integrated dynamic assembly according to claim 1, which is characterized in that the motor output shaft is far from described first
One end of output bearing is formed with external splines, and the reducer input shaft is formed with interior flower far from one end of the input shaft bearing
Key, the internal spline are engaged with the external splines, so that the reducer input shaft is connect with the motor output shaft spline.
8. integrated dynamic assembly according to claim 1, which is characterized in that the motor output shaft is far from described first
One end of output bearing is formed with internal spline, and the reducer input shaft is formed with outer flower far from one end of the input shaft bearing
Key, the internal spline are engaged with the external splines, so that the reducer input shaft is connect with the motor output shaft spline.
9. integrated dynamic assembly according to any one of claims 1 to 8, which is characterized in that the second output bearing
Positioned at the junction of the motor output shaft and the reducer input shaft, and the motor output shaft and the retarder input
Axis is arranged in the second output bearing.
10. a kind of electric car, which is characterized in that total including the described in any item integrated dynamics of such as the claims 1 to 9
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821509958.3U CN208760400U (en) | 2018-09-14 | 2018-09-14 | Electric car and its integrated dynamic assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821509958.3U CN208760400U (en) | 2018-09-14 | 2018-09-14 | Electric car and its integrated dynamic assembly |
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| Publication Number | Publication Date |
|---|---|
| CN208760400U true CN208760400U (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821509958.3U Active CN208760400U (en) | 2018-09-14 | 2018-09-14 | Electric car and its integrated dynamic assembly |
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|---|---|
| CN (1) | CN208760400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973631A (en) * | 2018-09-14 | 2018-12-11 | 株洲欧格瑞传动股份有限公司 | Electric car and its integrated dynamic assembly |
-
2018
- 2018-09-14 CN CN201821509958.3U patent/CN208760400U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108973631A (en) * | 2018-09-14 | 2018-12-11 | 株洲欧格瑞传动股份有限公司 | Electric car and its integrated dynamic assembly |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20191111 Address after: No. 10, Li Yu Industrial Park, Tianyuan District, Zhuzhou, Hunan Province, Ming day road, 412000 Patentee after: Zhuzhou Gearings Co., Ltd. Address before: 412007 Li Yu Industrial Park, Pearl River North Road, Tianyuan District, Zhuzhou, Hunan Patentee before: Zhuzhou Accurate Drive Train Co., Ltd. |