CN209454542U - The power assembly and electric vehicle of electric vehicle - Google Patents

Abstract

The utility model relates to technical field of vehicle manufacture more particularly to the power assemblies and electric vehicle of a kind of electric vehicle.The power assembly of the electric vehicle includes: driving motor, retarder, halting mechanism, and the input terminal of the retarder and the motor shaft front end of the driving motor are of coupled connections；With front end opposite rear end of the halting mechanism for locking or the motor shaft of the release driving motor.The power assembly of the electric vehicle of the utility model and the power assembly of electric vehicle are functional, halting mechanism is compact to design, flexibility is good, to solve the problems, such as that electronic parking arrangement of mechanism is in the entire power assembly performance of retarder internal influence in the prior art.

Description

The power assembly and electric vehicle of electric vehicle

Technical field

The utility model relates to technical field of vehicle manufacture more particularly to the power assemblies and electric vehicle of a kind of electric vehicle ?.

Background technique

With the development of modern economy, automobile becomes the daily vehicles of people, but with environmental requirement and The promotion that automotive safety requires, more and more electric cars are initially configured electronic parking mechanism；Halting mechanism is to prevent vehicle A kind of safety device slided, for keep automobile reliable and no time limit be parked in certain position even ramp；At present Electronic parking mechanism is all arranged on inside retarder, by shafting arrangement inside retarder and piggyback pod arrangement space Limitation, the arrangement and performance of halting mechanism are all centainly constrained, while also will affect shaft system arrangement inside retarder, are influenced whole A power assembly performance.In order to release halting mechanism arrangement and shaft system arrangement contradiction, it is necessary to halting mechanism arrangement side Formula improves.

Utility model content

The technical issues of the utility model solves is to provide the power assembly and electric vehicle of a kind of electric vehicle, to Solve the problems, such as that electronic parking arrangement of mechanism is in the entire power assembly performance of retarder internal influence in the prior art.

In a first aspect, the utility model discloses a kind of power assemblies of electric vehicle, comprising: driving motor, retarder, Halting mechanism, the input terminal of the retarder and the motor shaft front end of the driving motor are of coupled connections；The halting mechanism is used In the rear end opposite with front end of locking or the motor shaft of the release driving motor.

Further, the halting mechanism includes parking motor, the first deceleration component, the first deboost axle, park pawl, stays Vehicle ratchet；The parking motor is for driving first deceleration component to rotate；First deceleration component is described for driving The rotation of first deboost axle；First deboost axle is arranged with the park pawl to be connect, for driving the park pawl with institute It states and rotates centered on the center line of the first deboost axle；The parking ratchet wheel is opposite with front end with the motor shaft of the driving motor Rear end be arranged connection with the motor shaft of the driving motor rotate；Wherein, the park pawl is for locking or release institute State parking ratchet wheel.

Further, the halting mechanism further includes the second deceleration component, and the parking motor is for driving described the The rotation of two deceleration components, second deceleration component are engaged with first deceleration component for driving first deceleration component Rotation.

Further, the park pawl includes the first arm, and the first end of first arm is equipped with shaft hole, and described first The second end opposite with first end of arm is equipped with pawl protrusion, and first deboost axle is interspersed in the shaft hole to drive The first arm is stated to rotate centered on the center line of first deboost axle；The edge of the parking ratchet wheel is equipped with and the pawl The lock groove of protrusion engagement.

Further, the park pawl further includes the second arm, the first end of second arm and first arm Opposite with first end second end connection, for make the second end opposite with first end of first arm within a preset range with It is rotated centered on the center line of first deboost axle.

Further, the locking slot number is multiple, and multiple lock grooves are arranged with identical spacing.

Further, the lock groove is divided at least one set, and the quantity of lock groove described in every group is multiple, same group of institute The spacing for stating lock groove is circumferentially gradually increased.

Further, the halting mechanism further includes parking cabinet, and the section of the upper housing of the parking cabinet is divided into two Section, the first segment in the section of the upper housing of the parking cabinet intersect with the second segment in the section of the upper housing of the parking cabinet Angle be α, 90 ° of 180 ° of < α <.

Further, the power assembly of the electric vehicle further includes oil seal, the oil seal and driving electricity The rear end opposite with front end of the motor shaft of machine is arranged connection, for sealing the halting mechanism and the driving motor.

Second aspect, the invention also discloses a kind of electric vehicle, including first aspect are described in any item electronic The power assembly of vehicle.

In conclusion the utility model has the following beneficial effects: the power assembly of the electric vehicle of the utility model With front end opposite rear end of the halting mechanism for locking or the motor shaft of the release driving motor.Because halting mechanism is pacified Mounted in the rear end opposite with front end of the drive motor shaft, the property for being mounted on the entire power assembly of retarder internal influence is avoided It can show, halting mechanism is not influenced that compact design can be carried out by retarder internal structure, and may also adapt to different rule The retarder of lattice performance is to improve the flexibility of halting mechanism.The electric vehicle of the utility model uses above-mentioned electronic The power assembly of vehicle, therefore, the power assembly of the electric vehicle of the utility model and the power assembly performance of electric vehicle are good Well, halting mechanism is compact to design, flexibility is good, exists to solve electronic parking arrangement of mechanism in the prior art The problem of retarder internal influence entire power assembly performance.

Detailed description of the invention

Fig. 1 is the schematic diagram of the power assembly preferred embodiment of the electric vehicle of the utility model.

Fig. 2 is the halting mechanism schematic diagram of the power assembly of the electric vehicle of Fig. 1.

Specific embodiment

The feature and exemplary embodiment of the various aspects of the utility model is described more fully below, in order to keep this practical new The objects, technical solutions and advantages of type are more clearly understood, and with reference to the accompanying drawings and embodiments, carry out the utility model into one Step detailed description.It should be noted that being used to help understand the utility model for the explanation of these embodiments, but simultaneously The restriction to the utility model is not constituted.In addition, skill involved in the various embodiments of the present invention described below Art feature can be combined with each other as long as they do not conflict with each other.

Embodiment 1

Fig. 1 and Fig. 2 are please referred to, the utility model discloses a kind of power assemblies of electric vehicle, comprising: driving motor 20, retarder 30, halting mechanism 40, the input terminal of the retarder 30 couple company with the motor shaft front end of the driving motor 20 It connects；With front end opposite rear end of the halting mechanism 40 for locking or the motor shaft of the release driving motor 20.Because staying Mechanism of car 40 is mounted on the rear end opposite with front end of 20 axis of driving motor, avoids being mounted on 30 internal influence of retarder whole The performance of a power assembly, halting mechanism 40 are not influenced that compact design can be carried out by 30 internal structure of retarder, and And it may also adapt to the retarder 30 of different size performance to improve the flexibility of halting mechanism 40.

Electric energy, is converted into driving torque by power of the driving motor 20 as electric car；Retarder 30 reduces revolving speed, increases Add torque.Driving motor 20, retarder 30 select from the prior art, and specific structure and principle are not specifically limited herein.

In the utility model preferred embodiment, the halting mechanism 40 includes parking motor 41, the first deceleration component 421, the first deboost axle 422, park pawl 43, parking ratchet wheel 44；The parking motor 41 is for driving first reduction part Part 421 rotates；First deceleration component 421 is for driving first deboost axle 422 to rotate；First deboost axle 422 It is arranged and connect with the park pawl 43, for driving the park pawl 43 to be with the center line of first deboost axle 422 Center rotating；The parking ratchet wheel 44 be arranged with the rear end opposite with front end of the motor shaft of the driving motor 20 connect with The motor shaft of the driving motor 20 rotates；Wherein, the park pawl 43 is for locking or the release parking ratchet wheel 44.It stays Mechanism of car 40 locking parking ratchet wheel, 44 workflows are as follows: the motor shaft of parking motor 41, which rotates clockwise, drives the first reduction part Part 421 rotates counterclockwise, and the first deceleration component 421, which rotates counterclockwise, drives the first deboost axle 422 and park pawl 43 with described It is rotated counterclockwise centered on the center line of first deboost axle 422, to make park pawl 43 close to parking ratchet wheel 44, when parking spine When pawl 43 and parking ratchet wheel 44 complete cooperation, locking parking ratchet wheel 44 is realized, driving motor 20 is lockked by parking ratchet wheel 44 Motor shaft increase the safety of parking to realize locking electric car.Halting mechanism 40 discharges 44 workflow of parking ratchet wheel Journey is as follows: the motor shaft of parking motor 41, which rotates counterclockwise, drives the first deceleration component 421 to rotate clockwise, the first deceleration component 421 rotate clockwise drive the first deboost axle 422 and park pawl 43 it is suitable centered on the center line of first deboost axle 422 Hour hands rotation, park pawl 43 and parking ratchet wheel 44 separate, to make park pawl 43 close to parking ratchet wheel 44, realize release Parking ratchet wheel 44.Because halting mechanism 40 arranges that halting mechanism 40 is not influenced to carry out compact by 30 internal structure of retarder Design.

First deceleration component 421 includes first gear, and first gear selects gear, specific structure and original from the prior art Reason is not specifically limited herein.

In the utility model preferred embodiment, the halting mechanism 40 further includes the second deceleration component 45, described to stay Vehicle motor 41 is for driving second deceleration component 45 to rotate, second deceleration component 45 and first deceleration component 421 engagements are for driving first deceleration component 421 to rotate.Referring to Fig. 2,40 locking workflow of halting mechanism is as follows: The motor shaft of parking motor 41, which rotates counterclockwise, drives the second deceleration component 45 to rotate clockwise, and the second deceleration component 45 is clockwise Rotation drives the first deceleration component 421 to rotate counterclockwise, and the first deceleration component 421, which rotates counterclockwise, drives the first deboost axle 422 And park pawl 43 is rotated counterclockwise centered on the center line of first deboost axle 422, to keep park pawl 43 close Parking ratchet wheel 44 realizes locking parking ratchet wheel 44, passes through parking spine when park pawl 43 and the completion cooperation of parking ratchet wheel 44 The motor shaft of 44 latching driving motor 20 of wheel increases the safety of parking to realize locking electric car.Halting mechanism 40 is released It is as follows to put workflow: the motor shaft of parking motor 41, which rotates clockwise, drives the second deceleration component 45 to rotate counterclockwise, and second Deceleration component 45, which rotates counterclockwise, drives the first deceleration component 421 to rotate clockwise, and the first deceleration component 421 rotates clockwise band Dynamic first deboost axle 422 and park pawl 43 are rotated clockwise centered on the center line of first deboost axle 422, parking spine Pawl 43 and parking ratchet wheel 44 separate, to make park pawl 43 close to parking ratchet wheel 44, realize release parking ratchet wheel 44.

In the present embodiment, referring to Fig. 2, the second deceleration component 45 includes second gear 451, third gear 452, second Deboost axle 453, second gear 451, the interval of third gear 452 are set in the second deboost axle 453, third gear 452 and the first tooth Engagement is taken turns, parking motor 41 is used to that the second gear 451 to be driven to rotate, the rotation drive of second gear 451 third gear 452, The rotation of second deboost axle 453, third gear 452 drives first gear rotation, to avoid 45 excessive wear of the second deceleration component Influence the performance of halting mechanism 40.

In a variant embodiment of the present embodiment, the second deceleration component 45 includes second gear 451, and structure is simple.

In the present embodiment, referring to Fig. 2, the diameter of second gear 451 is greater than third gear 452, so that revolving speed is reduced, Increase torque.

In a variant embodiment of the present embodiment, the diameter of second gear 451 is greater than third gear 452, the first tooth The diameter of wheel is greater than second gear 451, to realize the velocity of rotation for reducing the first deboost axle 422, realizes to park pawl 43 rotation distances are precisely controlled.

In the present embodiment, halting mechanism 40 further includes the 4th gear, and the 4th gear is set in the motor of parking motor 41 There is provided power by engagement on axis reduces maintenance cost to prevent the motor shaft excessive wear of parking motor 41.

Second gear 451, third gear 452, the 4th gear select gear from the prior art, and specific structure and principle exist This is not specifically limited.

In the utility model preferred embodiment, the park pawl 43 includes the first arm 431, first arm 431 First end be equipped with shaft hole, the second end opposite with first end of first arm 431 is equipped with pawl protrusion 432, described the One deboost axle 422 is interspersed in the shaft hole to drive first arm 431 to be with the center line of first deboost axle 422 Center rotating；The edge of the parking ratchet wheel 44 is equipped with the lock groove 441 engaged with the pawl protrusion 432.Lock groove 441 It is engaged with the pawl protrusion 432, realizes locking parking ratchet wheel 44；Lock groove 441 and pawl protrusion 432 separate, and realize Discharge parking ratchet wheel 44.

In the utility model preferred embodiment, referring to Fig. 2, the edge of the pawl protrusion 432 is in arc-shaped, lock The only 432 arc-shaped groove of cooperation of slot 441 and pawl protrusion, is conducive to pawl protrusion 432 and slides into lock groove 441, be also possible to prevent Pawl protrusion 432, which has to be excessively abraded, causes lock groove 441 and the pawl protrusion 432 not to engage very well.It is understood that , the edge of pawl protrusion 432 can have a generally triangular shape, polygon etc., as long as facilitating pawl protrusion 432 and lock groove 441 Cooperation and separation, concrete shape is not specifically limited herein.

In the utility model preferred embodiment, the park pawl 43 further includes the second arm 433, second arm 433 first end is connect with the second end opposite with first end of first arm 431, for make first arm 431 with The opposite second end of first end is rotated centered on the center line of first deboost axle 422 within a preset range, to prevent Park pawl 43 excessively causes pawl protrusion 432 to skid off from lock groove 441 close to park pawl 43, further improves locking The stability of electric car further increases the safety of parking.

In the utility model preferred embodiment, 441 quantity of lock groove is multiple, multiple lock grooves 441 With the setting of identical spacing.The time of locking automobile can be shortened using multiple lock grooves 441, the user experience is improved；Multiple locks Only slot 441 is conducive to the processing of parking ratchet wheel 44 with the setting of identical spacing, and is conducive to the consistency of the operating of halting mechanism 40, Improve the performance of halting mechanism 40.

In the utility model preferred embodiment, the lock groove 441 divides at least one set, lock groove described in every group 441 quantity be it is multiple, the spacing of same group of the lock groove 441 is circumferentially gradually increased, to reduce parking ratchet wheel 44 Resonance is generated when putting into gear and engaging with park pawl 43.

In the present embodiment, in the group of the lock groove 441 of two adjacent groups the lock groove 441 spacing along identical circumferential direction by It is cumulative big, to be conducive to the consistency of the operating of halting mechanism 40, improve the performance of halting mechanism 40.

In a variant embodiment of the present embodiment, the lock groove 441 in the group of the lock groove 441 of two adjacent groups Spacing is circumferentially gradually increased along opposite.

In the present embodiment, referring to Fig. 2, the halting mechanism 40 further includes parking cabinet 401, the parking cabinet The section of 401 upper housing 402 is divided into two sections, and the first segment in the section of the upper housing 402 of the parking cabinet 401 is stayed with described The angle of the second segment intersection in the section of the upper housing 402 of box body 401 is α, 90 ° of 180 ° of < α <, to make in halting mechanism 40 Portion's part compact design as far as possible, takes full advantage of space.

In a variant embodiment of the present embodiment, 120 ° of 150 ° of < α <, to keep 40 inner body of halting mechanism most Compact design is measured, space is taken full advantage of.

In another variant embodiment of the present embodiment, α=135 °, to be conducive to make full use of parking cabinet 401 Inner space.

Parking cabinet 401 includes motor end housing and parking end housing, and motor end housing and parking end housing difference are integrally It is fitted together again after molding, is conducive to the assembling of halting mechanism 40.

In the utility model preferred embodiment, the section of the lower case 403 of the parking cabinet 401 is divided into two sections, The section of the lower case 403 of the first segment in the section of the lower case 403 of the parking cabinet 401 and the parking cabinet 401 The angle of second segment intersection is α, and 0 ° of 180 ° of < α < takes full advantage of to make 40 inner body of halting mechanism compact design as far as possible Space.

In another variant embodiment of the present embodiment, the section of parking cabinet 401 is rectangle, is conducive to parking cabinet 401 processing.

In the present embodiment, second arm 433 is located at first arm, 431 top, second arm 433 and described the The angle of one arm 431 intersection is β, 0 ° of 160 ° of < β <, is conducive to the second arm 433 second end opposite with first end with parking cabinet 401 upper housings 402 cooperation, to prevent park pawl 43 from excessively causing pawl protrusion 432 from lock groove close to park pawl 43 It is skidded off in 441, further improves the stability of locking electric car, further increase the safety of parking；In electric car When lockup state, the rotary force that the first arm 431 is rotated counterclockwise by the first deboost axle 422, parking ratchet wheel 44 produces the first arm 431 A raw clockwise pressure, is cooperated with 401 upper housing 402 of parking cabinet using the second arm 433 and generates one to the first arm 431 Support force counterclockwise further improves parking safety to increase parking power.

In a variant embodiment of the present embodiment, it is opposite with first end to be conducive to the second arm 433 by 90 ° of 150 ° of < β < Second end cooperate with 401 upper housing 402 of parking cabinet, to prevent park pawl 43 from excessively causing spine close to park pawl 43 Pawl protrusion 432 is skidded off from lock groove 441, and prevents park pawl 43 excessively close to parking motor 41 when release, to contract The short time lockked, is conducive to the operation of halting mechanism 40, improves the performance of halting mechanism 40, the user experience is improved.

In another variant embodiment of the present embodiment, whens β=135 °, prevents park pawl 43 excessively close to parking spine Pawl 43 causes pawl protrusion 432 to skid off from lock groove 441, and when release more effectively prevents park pawl 43 excessively close to parking Motor 41 is conducive to the operation of halting mechanism 40, improves the performance of halting mechanism 40, mention so as to shorten the time lockked User experience is risen.

In the present embodiment, upper casing when the second arm 433 second end highest opposite with first end apart from parking cabinet 401 The first segment in the section of body 402 and the intersection point of the second segment in the section of the upper housing 402 of the parking cabinet 401 are nearest, thus Be conducive to the second arm 433 second end opposite with first end with the cooperation of 401 upper housing 402 of parking cabinet.

In the utility model preferred embodiment, the power assembly of the electric vehicle further includes oil seal, the oil Sealing is arranged with the rear end opposite with front end of the motor shaft of the driving motor 20 and connect, for sealing the halting mechanism 40 Oil leak is prevented to improve the leakproofness of the power assembly of electric vehicle with the driving motor 20, improves electric vehicle Power assembly performance.Oil seal selects from the prior art, and specific structure and principle are not specifically limited herein.

In the present embodiment, referring to Fig. 1, parking ratchet wheel 44 is located at the lower left of the first deceleration component 421, second slows down Component 45 is located at the upper right side of the first deceleration component 421, and the motor shaft of parking motor 41 is located at the upper right of the second deceleration component 45 Side, parking motor 41 and driving motor 20 are located at the same side of the parking cabinet 401 of halting mechanism 40, to make entire electric vehicle Power assembly compact layout, improve the performance of the power assembly of electric vehicle.It is understood that parking ratchet wheel 44, First deceleration component 421, the motor shaft of parking motor 41, the second deceleration component 45 can also arrange in a line or broken line, It is not specifically limited herein.

Embodiment 2

Please continue to refer to Fig. 1 and Fig. 2, the invention also discloses any one of a kind of electric vehicles, including first aspect The power assembly of the electric vehicle.Because halting mechanism 40 be mounted on 20 axis of driving motor it is opposite with front end after End, avoids the performance for being mounted on the entire power assembly of 30 internal influence of retarder, halting mechanism 40 is not by retarder 30 The influence of portion's structure can carry out compact design, and may also adapt to the retarder 30 of different size performance and stay to improve The flexibility of mechanism of car 40.

In the present embodiment, referring to Fig. 1, electric vehicle further includes electronic control unit 50, electronic control unit 50 is located at driving electricity 20 top of machine, to make the power assembly compact layout of entire electric vehicle.

In conclusion the halting mechanism 40 of the power assembly of the electric vehicle of the utility model is used for locking or release The rear end opposite with front end of the motor shaft of the driving motor 20.Because halting mechanism 40 is mounted on 20 axis of driving motor The rear end opposite with front end avoids the performance for being mounted on the entire power assembly of 30 internal influence of retarder, halting mechanism 40 It is not influenced that compact design can be carried out by 30 internal structure of retarder, and may also adapt to the retarder of different size performance 30 so that improve the flexibility of halting mechanism 40.The electric vehicle of the utility model uses the power of electric vehicle above-mentioned Assembly, therefore, the power assembly of the electric vehicle of the utility model and power assembly of electric vehicle is functional, halting mechanism 40 is compact to design, flexibility is good, so that solving electronic parking mechanism 40 in the prior art is arranged in retarder The problem of 30 internal influences entire power assembly performance.

It is above to lift preferred embodiment, the purpose of this utility model, technical solution and advantage are described in detail, it is above The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field As technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range, furthermore " first ", " second " used in the utility model and similar word are not offered as any sequence, quantity or importance, And it is used only to distinguish different objects.In conclusion the content of the present specification is only the embodiments of the present invention, not because The scope of patent protection of this limitation the utility model, equivalent knot made by using the description of the utility model and the drawings Structure or equivalent process transformation, are applied directly or indirectly in other relevant technical fields, and are similarly included in the utility model Scope of patent protection in.It should not be construed as a limitation of the present invention.

Claims (10)

1. a kind of power assembly of electric vehicle characterized by comprising driving motor, retarder, halting mechanism, it is described to subtract The input terminal of fast device and the motor shaft front end of the driving motor are of coupled connections；The halting mechanism is for described in locking or release The rear end opposite with front end of the motor shaft of driving motor.

2. the power assembly of electric vehicle according to claim 1, which is characterized in that the halting mechanism includes parking electricity Machine, the first deceleration component, the first deboost axle, park pawl, parking ratchet wheel；

The parking motor is for driving first deceleration component to rotate；

First deceleration component is for driving first deboost axle to rotate；

First deboost axle is arranged with the park pawl to be connect, for driving the park pawl with first deboost axle Center line centered on rotate；

The parking ratchet wheel is arranged with the rear end opposite with front end of the motor shaft of the driving motor and connect with the driving The motor shaft of motor rotates；

Wherein, the park pawl is for locking or the release parking ratchet wheel.

3. the power assembly of electric vehicle according to claim 2, which is characterized in that the halting mechanism further includes second Deceleration component, the parking motor is for driving second deceleration component to rotate, second deceleration component and described first Deceleration component engagement is for driving first deceleration component to rotate.

4. the power assembly of electric vehicle according to claim 2, which is characterized in that the park pawl includes first Arm, the first end of first arm are equipped with shaft hole, and the second end opposite with first end of first arm is equipped with pawl protrusion, First deboost axle is interspersed in the shaft hole to drive during first arm with the center line of first deboost axle is Heart rotation；The edge of the parking ratchet wheel is equipped with the lock groove engaged with the pawl protrusion.

5. the power assembly of electric vehicle according to claim 4, which is characterized in that the park pawl further includes second Arm, the first end of second arm are connect with the second end opposite with first end of first arm, for making first arm The second end opposite with first end rotated centered on the center line of first deboost axle within a preset range.

6. the power assembly of electric vehicle according to claim 4, which is characterized in that the locking slot number be it is multiple, Multiple lock grooves are arranged with identical spacing.

7. the power assembly of electric vehicle according to claim 4, which is characterized in that the lock groove is divided at least one Group, the quantity of lock groove described in every group be it is multiple, the spacing of same group of the lock groove is circumferentially gradually increased.

8. the power assembly of electric vehicle according to any one of claims 1 to 7, which is characterized in that the halting mechanism It further include parking cabinet, the section of the upper housing of the parking cabinet is divided into two sections, the section of the upper housing of the parking cabinet The angle intersected with the second segment in the section of the upper housing of the parking cabinet of first segment be α, 90 ° of 180 ° of < α <.

9. the power assembly of electric vehicle according to claim 8, which is characterized in that the power assembly of the electric vehicle It further include oil seal, the oil seal is arranged with the rear end opposite with front end of the motor shaft of the driving motor and connect, and is used for Seal the halting mechanism and the driving motor.

10. a kind of electric vehicle, which is characterized in that the power including electric vehicle as described in any one of claim 1 to 9 is total At.