阅读说明：本技术 一种用于新能源汽车的具有限速功能的节能型电机 (Energy-saving motor with speed limiting function for new energy automobile ) 是由 杨海军 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种用于新能源汽车的具有限速功能的节能型电机,属于新能源汽车领域,一种用于新能源汽车的具有限速功能的节能型电机,包括转动连接在壳体内的输出轴,输出轴左侧设置有多个与其相匹配的限速组件,限速组件外端设置有与其相匹配的间歇式组件,输出轴外端连接有控制组件,控制组件位于限速组件右侧,且控制组件与间歇式组件相匹配,可以通过控制器、间歇式组件、限速组件和控制组件相互配合,有效对输出轴进行限速和调节,便于控制电机的转速,有效降低电机长时间快速转动产生的磨损,提高电机的使用寿命,增加新能源汽车的运行安全,并且有效实现自动话控制,提高新能源汽车的智能化程度。(The invention discloses an energy-saving motor with a speed limiting function for a new energy automobile, which belongs to the field of new energy automobiles, and comprises an output shaft rotationally connected in a shell, wherein the left side of the output shaft is provided with a plurality of speed limiting components matched with the output shaft, the outer end of each speed limiting component is provided with a batch type component matched with the output shaft, the outer end of the output shaft is connected with a control component, the control component is positioned on the right side of the speed limiting component, the control component is matched with the batch type component, the output shaft can be effectively limited and adjusted through the mutual matching of a controller, the batch type component, the speed limiting component and the control component, the rotating speed of the motor can be conveniently controlled, the abrasion caused by the long-time rapid rotation of the motor can be effectively reduced, the service life of the motor can be prolonged, the operation safety of the new energy automobile can be, and the intelligent degree of the new energy automobile is improved.)

1. The utility model provides an energy-saving motor that is used for new energy automobile's speed limit function has, is including rotating output shaft (1) of connection in casing (2), its characterized in that: the left side of the output shaft (1) is provided with a plurality of speed-limiting assemblies (4) matched with the output shaft, the outer ends of the speed-limiting assemblies (4) are provided with intermittent assemblies (3) matched with the speed-limiting assemblies, the outer end of the output shaft (1) is connected with a control assembly (5), the control assembly (5) is positioned on the right side of the speed-limiting assemblies (4), the control assembly (5) is matched with the intermittent assemblies (3), the right end of the shell (2) is provided with a controller, and the controller is connected with the output shaft (1) and the control assembly (5) respectively;

intermittent type formula subassembly (3) is including connecting seat (301), a plurality of connecting seats (301) that are the circumference and distribute of fixedly connected with in casing (2), connecting seat (301) inner rotates and is connected with bull stick (302), fixedly connected with a pair of contact cam (303) on bull stick (302), bull stick (302) right-hand member fixedly connected with driven gear (304).

2. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 1, characterized in that: the speed-limiting assembly (4) comprises a support (403), a plurality of supports (403) which are circumferentially distributed are fixedly connected to the left inner wall of the shell (2), a supporting spring (404) is fixedly connected to the inner end of each support (403), a speed-limiting support plate (402) which is matched with the contact cam (303) is fixedly connected to the inner end of each supporting spring (404), a speed-limiting friction plate (401) is fixedly connected to the inner end of each speed-limiting support plate (402), the speed-limiting friction plate (401) is located on the outer side of the output shaft (1), and a plurality of friction lugs (405) are fixedly connected to the inner end of each speed-limiting friction plate (.

3. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 2, characterized in that: the left end of the shell (2) is provided with a plurality of limiting long holes (201), the left end of the speed limiting support plate (402) penetrates through the limiting long holes (201) and is fixedly connected with a limiting baffle, and the speed limiting support plate (402) is in sliding connection with the limiting long holes (201).

4. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 2, characterized in that: and guide posts are fixedly connected to one ends, close to the speed-limiting support plate (402), of the support (403), and are positioned on the inner side of the supporting spring (404).

5. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 1, characterized in that: control assembly (5) is including electro-magnet (501) No. one, output shaft (1) right-hand member fixedly connected with electro-magnet (501) No. one, electro-magnet (501) left end fixedly connected with guide bar (502), guide bar (502) left end fixedly connected with electro-magnet (503) No. two, output shaft (1) outer end rotates sliding connection and has driving gear (504), and driving gear (504) are located between electro-magnet (501) and electro-magnet (503) No. two.

6. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 5, characterized in that: the driving gear (504) is provided with a guide groove matched with the guide rod (502), and the driving gear (504) is meshed with the driven gear (304).

7. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 1, characterized in that: the controller comprises a data control unit, the input end of the data control unit is connected with a speed detection unit, the output end of the data control unit is connected with a speed limiting control unit, the speed detection unit is connected with the output shaft (1), and the speed limiting control unit is electrically connected with the control assembly (5) through a wire.

8. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 7, wherein: the output end of the data control unit is connected with a voice reminding unit, and the output end of the voice reminding unit is connected with a loudspeaker.

9. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 7, wherein: the output end of the data control unit is connected with a kinetic energy conversion unit, and the kinetic energy conversion unit is connected with a generator through a lead.

10. The energy-saving motor with the speed limiting function for the new energy automobile according to claim 1, characterized in that: the use method of the speed limiting assembly (4) comprises the following steps:

s1, monitoring the rotating speed of an output shaft (1) by a controller;

s2, controlling the control assembly (5) to start after monitoring that the rotating speed of the output shaft (1) exceeds a limited speed;

s3, the control assembly (5) acts on the intermittent assembly (3) to enable the intermittent assembly (3) to rotate;

s4, the intermittent assembly (3) rotates to drive the speed limiting assembly (4) to move, so that the speed limiting assembly (4) is in intermittent contact with the output shaft (1) to limit the speed of the output shaft (1) and reduce the rotating speed of the output shaft (1);

s5, after monitoring that the rotating speed of the output shaft (1) is less than a limited speed, the controller controls the control assembly (5) to reset;

s6, resetting the intermittent assembly (3) and the speed limiting assembly (4) and stopping limiting the speed of the output shaft (1).

Technical Field

The invention relates to the field of new energy automobiles, in particular to an energy-saving motor with a speed limiting function for a new energy automobile.

Background

Automobiles are power-driven, non-rail-borne vehicles with 4 or more than 4 wheels, primarily used for: carrying personnel and/or goods; a vehicle for towing persons and/or goods; the application is special. With the increasing use amount of automobiles, the currently and commonly used fuel engine automobiles have various defects, statistics shows that under the condition of a road accounting for more than 80%, a common car only utilizes 40% of power potential energy, and can drop to 25% in urban areas, and the environment is polluted by discharged waste gas more seriously. Since the 90 s of the 20 th century, the worldwide countries have increasingly heightened calls for environmental improvement, and various electric vehicles have emerged.

The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure. The new energy automobile comprises four types of Hybrid Electric Vehicles (HEV), pure electric vehicles (BEV, including solar vehicles), Fuel Cell Electric Vehicles (FCEV), other new energy (such as efficient energy storage devices like super capacitors and flywheels) automobiles and the like. Unconventional automotive fuels refer to fuels other than gasoline, diesel, Natural Gas (NG), Liquefied Petroleum Gas (LPG), Ethanol Gasoline (EG), methanol, dimethyl ether.

The existing new energy automobile mainly runs by means of motor driving, the running speed of the new energy automobile is controlled by the rotating speed of the motor, however, when the motor rotates rapidly for a long time, the loss of the motor is easily increased, the service life of the motor is shortened, and the safety of the new energy automobile running at a high speed is poor.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an energy-saving motor with a speed limiting function for a new energy automobile, which can effectively limit and adjust the speed of an output shaft through the mutual cooperation of a controller, an intermittent assembly, a speed limiting assembly and a control assembly, is convenient to control the rotating speed of the motor, effectively reduces the abrasion caused by long-time and rapid rotation of the motor, prolongs the service life of the motor, increases the running safety of the new energy automobile, effectively realizes automatic telephone control and improves the intelligent degree of the new energy automobile.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An energy-saving motor with a speed limiting function for a new energy automobile comprises an output shaft which is rotatably connected in a shell, wherein a plurality of speed limiting assemblies matched with the output shaft are arranged on the left side of the output shaft, intermittent assemblies matched with the speed limiting assemblies are arranged at the outer ends of the speed limiting assemblies, a control assembly is connected to the outer end of the output shaft and is positioned on the right side of the speed limiting assemblies and matched with the intermittent assemblies, a controller is arranged at the right end of the shell and is respectively connected with the output shaft and the control assembly;

the intermittent assembly comprises connecting seats, a plurality of connecting seats which are distributed circumferentially are fixedly connected in the shell, rotating rods are rotatably connected at the inner ends of the connecting seats, a pair of contact cams are fixedly connected on the rotating rods, and driven gears are fixedly connected at the right ends of the rotating rods. Through controller, intermittent type formula subassembly, speed limit subassembly and control assembly mutually supporting, effectively carry out the speed limit and adjust the output shaft, the rotational speed of the control motor of being convenient for effectively reduces the wearing and tearing that the long-time fast rotation of motor produced, improves the life of motor, increases new energy automobile's operation safety to effectively realize the control of automatic words, improve new energy automobile's intelligent degree.

Furthermore, the speed limiting assembly comprises a support, a plurality of supports which are circumferentially distributed are fixedly connected to the left inner wall of the shell, a supporting spring is fixedly connected to the inner end of each support, a speed limiting support plate matched with the contact cam is fixedly connected to the inner end of each supporting spring, a speed limiting friction plate is fixedly connected to the inner end of each speed limiting support plate, the speed limiting friction plate is located on the outer side of the output shaft, and a plurality of friction lugs are fixedly connected to the inner end of each speed limiting friction plate. The contact type cam continuously acts on the speed-limiting support plate to enable the speed-limiting friction plate to be in intermittent contact with the output shaft, the rotating resistance of the output shaft is continuously increased, the speed of the output shaft is effectively limited, the output shaft is effectively prevented from being locked by adopting an intermittent contact mode, the safety of speed-limiting operation is improved, the abrasion of the speed-limiting friction plate and the output shaft is reduced, and the service life of the speed-limiting friction plate is prolonged.

Furthermore, a plurality of limiting long holes are formed in the left end of the shell, the left end of the speed limiting support plate penetrates through the limiting long holes and is fixedly connected with a limiting baffle, and the speed limiting support plate is connected with the limiting long holes in a sliding mode. The limiting long hole guides and limits the speed limiting support plate, so that the moving precision of the speed limiting support plate is improved, the occurrence of shearing force of the speed limiting friction plate under the action is reduced, and the service life of the speed limiting assembly is prolonged.

Furthermore, the ends, close to the speed-limiting supporting plate, of the supporting seat and the speed-limiting supporting plate are fixedly connected with guide posts, and the guide posts are located on the inner side of the supporting spring.

Furthermore, the control assembly comprises an electromagnet, the right end of the output shaft is fixedly connected with the electromagnet, the left end of the electromagnet is fixedly connected with a guide rod, the left end of the guide rod is fixedly connected with an electromagnet, the outer end of the output shaft is rotatably and slidably connected with a driving gear, and the driving gear is located between the electromagnet and the electromagnet. Through mutually supporting of an electro-magnet and No. two electro-magnets, adsorb the driving gear to the position of adjustment driving gear effectively realizes the start-up and close of intermittent type formula subassembly, effectively reduces the load of output shaft when normal use, improves motor kinetic energy's availability factor.

Furthermore, a guide groove matched with the guide rod is formed in the driving gear, and the driving gear is meshed with the driven gear. The driving gear passes through the restriction of guide way and guide bar, when moving on the output shaft, makes the output shaft drive the driving gear and rotates, when effectively guaranteeing the driving gear effect, improves the removal precision of driving gear, improves the cooperation precision of driving gear and driven gear.

Furthermore, the controller comprises a data control unit, the input end of the data control unit is connected with a speed detection unit, the output end of the data control unit is connected with a speed limit control unit, the speed detection unit is connected with the output shaft, and the speed limit control unit is electrically connected with the control assembly through a wire. The speed detection unit monitors the rotating speed of the output shaft in real time, safety of the new energy automobile in the driving process is effectively improved, the speed limit control unit controls the control assembly, timing speed limit operation of the output shaft is facilitated, loss of the motor is reduced, and the service life of the motor is prolonged.

Furthermore, the output end of the data control unit is connected with a voice reminding unit, and the output end of the voice reminding unit is connected with a loudspeaker. The voice reminding unit is used for reminding a driver through a loudspeaker, reminding the driver of alertness, promoting the driver to reduce driving speed and improving the driving safety of the new energy automobile.

Furthermore, the output end of the data control unit is connected with a kinetic energy conversion unit, and the kinetic energy conversion unit is connected with a generator through a lead. When the controller monitors that the output shaft is in an idle state through the speed detection unit, the energy conversion unit controls the generator to be started, redundant kinetic energy of the motor is converted into electricity to be charged by a storage battery of the new energy automobile, energy loss of the motor is effectively saved when the new energy automobile runs under inertia, and the utilization rate of kinetic energy of the motor is improved.

Further, the use method of the speed limiting assembly is as follows:

s1, monitoring the rotating speed of an output shaft by a controller;

s2, controlling a control assembly to start after monitoring that the rotating speed of the output shaft exceeds a limited speed;

s3, controlling the action of the assembly and the intermittent assembly to enable the intermittent assembly to rotate;

s4, the intermittent assembly rotates to drive the speed limiting assembly to move, so that the speed limiting assembly is in intermittent contact with the output shaft to limit the speed of the output shaft and reduce the rotating speed of the output shaft;

s5, after monitoring that the rotating speed of the output shaft is less than a limited speed, the controller controls the control assembly to reset;

s6, resetting the intermittent assembly and the speed limiting assembly and stopping limiting the speed of the output shaft. Act on intermittent type formula subassembly through the control assembly, make intermittent type formula subassembly drive speed limit subassembly be intermittent type formula and output shaft contact, the speed limit subassembly when increasing output shaft rotational resistance, effectively reduces because the loss of long-time friction to the output shaft, improves the life of output shaft to effectively avoid appearing the locking phenomenon, improve the stationarity of speed limit, improve the comfort level of driver at the driving process.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is mutually supported through controller, intermittent type formula subassembly, speed limit subassembly and control assembly, effectively carries out the speed limit and adjusts to the output shaft, and the rotational speed of the control motor of being convenient for effectively reduces the wearing and tearing that the long-time fast rotation of motor produced, improves the life of motor, increases new energy automobile's operation safety to effectively realize the control of automatic words, improve new energy automobile's intelligent degree.

(2) The contact type cam continuously acts on the speed-limiting support plate to enable the speed-limiting friction plate to be in intermittent contact with the output shaft, the rotating resistance of the output shaft is continuously increased, the speed of the output shaft is effectively limited, the output shaft is effectively prevented from being locked by adopting an intermittent contact mode, the safety of speed-limiting operation is improved, the abrasion of the speed-limiting friction plate and the output shaft is reduced, and the service life of the speed-limiting friction plate is prolonged.

(3) The limiting long hole guides and limits the speed limiting support plate, so that the moving precision of the speed limiting support plate is improved, the occurrence of shearing force of the speed limiting friction plate under the action is reduced, and the service life of the speed limiting assembly is prolonged.

(4) Through mutually supporting of an electro-magnet and No. two electro-magnets, adsorb the driving gear to the position of adjustment driving gear effectively realizes the start-up and close of intermittent type formula subassembly, effectively reduces the load of output shaft when normal use, improves motor kinetic energy's availability factor.

(5) The driving gear passes through the restriction of guide way and guide bar, when moving on the output shaft, makes the output shaft drive the driving gear and rotates, when effectively guaranteeing the driving gear effect, improves the removal precision of driving gear, improves the cooperation precision of driving gear and driven gear.

(6) The speed detection unit monitors the rotating speed of the output shaft in real time, safety of the new energy automobile in the driving process is effectively improved, the speed limit control unit controls the control assembly, timing speed limit operation of the output shaft is facilitated, loss of the motor is reduced, and the service life of the motor is prolonged.

(7) The voice reminding unit is used for reminding a driver through a loudspeaker, reminding the driver of alertness, promoting the driver to reduce driving speed and improving the driving safety of the new energy automobile.

(8) When the controller monitors that the output shaft is in an idle state through the speed detection unit, the energy conversion unit controls the generator to be started, redundant kinetic energy of the motor is converted into electricity to be charged by a storage battery of the new energy automobile, energy loss of the motor is effectively saved when the new energy automobile runs under inertia, and the utilization rate of kinetic energy of the motor is improved.

(9) Act on intermittent type formula subassembly through the control assembly, make intermittent type formula subassembly drive speed limit subassembly be intermittent type formula and output shaft contact, the speed limit subassembly when increasing output shaft rotational resistance, effectively reduces because the loss of long-time friction to the output shaft, improves the life of output shaft to effectively avoid appearing the locking phenomenon, improve the stationarity of speed limit, improve the comfort level of driver at the driving process.

Drawings

FIG. 1 is a schematic view of an internal axis measurement configuration of the present invention;

FIG. 2 is a schematic diagram of a controller frame structure according to the present invention;

FIG. 3 is a schematic view of a principal boresight configuration of the present invention;

FIG. 4 is a left side sectional structural schematic view of the present invention;

FIG. 5 is a schematic right sectional view of the present invention;

FIG. 6 is a schematic view of an axial structure of the control assembly of the present invention;

FIG. 7 is a schematic view of the output shaft and speed limiting assembly of the present invention in combination with a shaft measuring structure;

FIG. 8 is a schematic view of the output shaft and intermittent assembly mating axial structure of the present invention;

FIG. 9 is a schematic view of an axial structure of the speed limiting assembly of the present invention;

FIG. 10 is a schematic view of an axial structure of the intermittent assembly of the present invention;

FIG. 11 is a schematic view of the axle measuring structure of the intermittent assembly and the speed limiting assembly.

The reference numbers in the figures illustrate:

1 output shaft, 2 shells, 201 limit long holes, 3 intermittent assemblies, 301 connecting seats, 302 rotating rods, 303 contact cams, 304 driven gears, 4 speed limit assemblies, 401 speed limit friction plates, 402 speed limit support plates, 403 supports, 404 supporting springs, 405 friction lugs, 5 control assemblies, 501 first electromagnets, 502 guide rods, 503 second electromagnets and 504 driving gears.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-11, an energy-saving motor with a speed limiting function for a new energy automobile comprises an output shaft 1 rotatably connected in a housing 2, wherein the left side of the output shaft 1 is provided with a plurality of speed limiting assemblies 4 matched with the output shaft, the outer ends of the speed limiting assemblies 4 are provided with intermittent assemblies 3 matched with the speed limiting assemblies, the outer end of the output shaft 1 is connected with a control assembly 5, the control assembly 5 is positioned at the right side of the speed limiting assemblies 4, the control assembly 5 is matched with the intermittent assemblies 3, the right end of the housing 2 is provided with a controller, and the controller is respectively connected with the output shaft 1 and the control assembly 5; referring to fig. 8 and 10, the intermittent assembly 3 includes a connecting seat 301, a plurality of circumferentially distributed connecting seats 301 are fixedly connected in the housing 2, a rotating rod 302 is rotatably connected to an inner end of the connecting seat 301, a pair of contact cams 303 is fixedly connected to the rotating rod 302, and a driven gear 304 is fixedly connected to a right end of the rotating rod 302. Through controller, intermittent type formula subassembly 3, speed limit subassembly 4 and control assembly 5 mutually supporting, effectively carry out the speed limit and adjust output shaft 1, the rotational speed of the control motor of being convenient for effectively reduces the wearing and tearing that the long-time fast rotation of motor produced, improves the life of motor, increases new energy automobile's operation safety to effectively realize the automatic control of saying, improve new energy automobile's intelligent degree.

Referring to fig. 7 and 9, the speed-limiting assembly 4 includes a support 403, a plurality of circumferentially distributed supports 403 are fixedly connected to a left inner wall of the housing 2, a support spring 404 is fixedly connected to an inner end of the support 403, a speed-limiting support plate 402 matched with the contact cam 303 is fixedly connected to an inner end of the support spring 404, a speed-limiting friction plate 401 is fixedly connected to an inner end of the speed-limiting support plate 402, the speed-limiting friction plate 401 is located outside the output shaft 1, and a plurality of friction bumps 405 are fixedly connected to an inner end of the speed-limiting friction plate. The contact cam 303 continuously acts on the speed-limiting support plate 402, so that the speed-limiting friction plate 401 is intermittently contacted with the output shaft 1, the rotation resistance of the output shaft 1 is continuously increased, the speed limitation of the output shaft 1 is effectively realized, the locking phenomenon of the output shaft 1 is effectively avoided by adopting an intermittent contact mode, the safety of speed-limiting operation is improved, the abrasion of the speed-limiting friction plate 401 and the output shaft 1 is reduced, and the service life of the speed-limiting friction plate 401 is prolonged.

Referring to fig. 3 and 5, a plurality of limiting long holes 201 are formed at the left end of the housing 2, a limiting support plate 402 penetrates through the limiting long holes 201 and is fixedly connected with a limiting baffle, and the limiting support plate 402 is slidably connected with the limiting long holes 201. The limiting long hole 201 guides and limits the speed limiting support plate 402, so that the moving precision of the speed limiting support plate 402 is improved, the occurrence of shearing force of the speed limiting friction plate 401 in action is reduced, and the service life of the speed limiting assembly 4 is prolonged.

Referring to fig. 10, a guide post is fixedly connected to each of the seat 403 and the speed-limiting support plate 402 near one end, and the guide post is located inside the supporting spring 404.

Referring to fig. 6, the control assembly 5 includes a first electromagnet 501, the right end of the output shaft 1 is fixedly connected with the first electromagnet 501, the left end of the first electromagnet 501 is fixedly connected with a guide rod 502, the left end of the guide rod 502 is fixedly connected with a second electromagnet 503, the outer end of the output shaft 1 is rotatably and slidably connected with a driving gear 504, and the driving gear 504 is located between the first electromagnet 501 and the second electromagnet 503. Through the mutual cooperation of electromagnet 501 and electromagnet 503, adsorb driving gear 504 to the position of adjustment driving gear 504 effectively realizes the start-up and closing to intermittent type formula subassembly 3, effectively reduces the load of output shaft 1 when normal use, improves motor kinetic energy's availability factor.

Referring to fig. 6, the driving gear 504 is provided with a guide slot matching with the guide rod 502, and the driving gear 504 is engaged with the driven gear 304. The driving gear 504 moves on the output shaft 1 through the restriction of the guide groove and the guide rod 502, and the output shaft 1 drives the driving gear 504 to rotate, so that the action of the driving gear 504 is effectively guaranteed, the moving precision of the driving gear 504 is improved, and the matching precision of the driving gear 504 and the driven gear 304 is improved.

Referring to fig. 2, the controller includes a data control unit, an input end of the data control unit is connected to a speed detection unit, an output end of the data control unit is connected to a speed limit control unit, the speed detection unit is connected to the output shaft 1, and the speed limit control unit is electrically connected to the control assembly 5 through a wire. The speed detection unit monitors the rotating speed of the output shaft 1 in real time, safety of the new energy automobile in the running process is effectively improved, the speed limit control unit controls the control assembly 5, memorability speed limit operation of the output shaft 1 is facilitated in time, loss of the motor is reduced, and the service life of the motor is prolonged.

Referring to fig. 2, the output end of the data control unit is connected to a voice reminding unit, and the output end of the voice reminding unit is connected to a loudspeaker. The voice reminding unit is used for reminding a driver through a loudspeaker, reminding the driver of alertness, promoting the driver to reduce driving speed and improving the driving safety of the new energy automobile.

Referring to fig. 2, the output end of the data control unit is connected to a kinetic energy conversion unit, and the kinetic energy conversion unit is connected to a generator through a wire. When the controller monitors that the output shaft 1 is in an idle running state through the speed detection unit, the energy conversion unit controls the generator to be started, redundant kinetic energy of the motor is converted into electricity to be charged by a storage battery of the new energy automobile, energy loss of the motor is effectively saved when the new energy automobile runs under inertia, and the utilization rate of kinetic energy of the motor is improved.

Referring to fig. 1-11, the method of use: the motor drives the output shaft 1 to rotate, when the speed detection unit detects that the rotating speed of the output shaft 1 exceeds a limited speed, data is transmitted to the data control unit, the data control unit controls the first electromagnet 501 to be powered off, the second electromagnet 503 is powered on, magnetism is generated after the second electromagnet 503 is powered on, the driving gear 504 is subjected to magnetic adsorption, the driving gear 504 moves to the second electromagnet 503 under the guide of the second electromagnet 503, the driving gear 504 is meshed with the driven gear 304 to drive the driven gear 304 to rotate, the rotating rod 302 drives the contact cam 303 to rotate, the contact cam 303 continuously acts on the speed limiting support plate 402, the speed limiting support plate 402 continuously approaches to and leaves away from the output shaft 1 under the action of the support spring 404, the speed limiting friction plate 401 continuously contacts with the output shaft 1, the rotating resistance of the output shaft 1 is increased through the friction bump 405, and the speed of the output shaft 1, the rotating speed of the output shaft 1 is reduced, the data control unit transmits overspeed data to the voice reminding unit, and the voice warning is given to a driver through the loudspeaker to remind the driver of overspeed so as to reduce the driving speed;

after the speed detection unit detects that the rotating speed of the output shaft 1 returns to the normal speed, data are transmitted to the data control unit, the data control unit controls the first electromagnet 501 to be electrified, the second electromagnet 503 is powered off, the first electromagnet 501 generates magnetism and adsorbs the driving gear 504, the driving gear 504 moves to the first electromagnet 501 under the guidance of the guide rod 502 to be separated from the driven gear 304, the rotating rod 302 stops rotating, the contact cam 303 stops acting on the speed-limiting support plate 402, the support spring 404 drives the speed-limiting friction plate 401 to reset, the speed-limiting friction plate 401 is far away from the output shaft 1, and the load of the output shaft 1 during normal rotation is reduced;

when the speed detection unit detects that the output shaft 1 is in an idle state, data are transmitted to the data control unit, the data control unit controls the generator to be started through the kinetic energy conversion unit, kinetic energy of the output shaft 1 in the idle state is converted into electric energy through the generator, the electric energy is transmitted into a storage battery of the new energy electric vehicle, the storage battery is charged, waste of the kinetic energy of the output shaft 1 in the idle state is reduced, and kinetic energy output by the motor is saved.

It should be noted that all the beneficial effects that the present invention does not need to achieve in the using process can be selected by those skilled in the art according to the actual needs.

Example 2:

referring to fig. 1 to 11, wherein the same or corresponding components as those in embodiment 1 are designated by the same reference numerals as those in embodiment 1, only the points different from embodiment 1 will be described below for the sake of convenience. This example 2 differs from example 1 in that: referring to fig. 1, the usage of the speed limiting assembly 4 is as follows:

s1, monitoring the rotating speed of an output shaft 1 by a controller;

s2, controlling the control component 5 to start after monitoring that the rotating speed of the output shaft 1 exceeds a limited speed;

s3, the control assembly 5 acts on the intermittent assembly 3 to enable the intermittent assembly 3 to rotate;

s4, the intermittent assembly 3 rotates to drive the speed limiting assembly 4 to move, so that the speed limiting assembly 4 is in intermittent contact with the output shaft 1 to limit the speed of the output shaft 1 and reduce the rotating speed of the output shaft 1;

s5, after monitoring that the rotating speed of the output shaft 1 is less than a limited speed, the controller controls the control assembly 5 to reset;

s6, resetting the intermittent assembly 3 and the speed limiting assembly 4 and stopping limiting the speed of the output shaft 1. Act on intermittent type formula subassembly 3 through control assembly 5, make intermittent type formula subassembly 3 drive speed limit subassembly 4 be intermittent type formula and output shaft 1 contact, speed limit subassembly 4 when increasing output shaft 1 rotation resistance, effectively reduce because the loss of long-time friction to output shaft 1, improve the life of output shaft 1 to effectively avoid appearing the locking phenomenon, improve the stationarity of speed limit, improve the comfort level of driver at the process of driving.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.