CN218031293U

CN218031293U - Electric actuator for automobile

Info

Publication number: CN218031293U
Application number: CN202221882987.0U
Authority: CN
Inventors: 童腾超; 任成波
Original assignee: Ningbo Jingcheng Car Industry Co ltd
Current assignee: Ningbo Jingcheng Car Industry Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-13
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses an electric actuator for car aims at providing a transmission reliable and stable's improved generation electric actuator for car, include: the assembly structure comprises a shell, an assembly space is arranged on the inner side of the shell, a multi-stage speed reducing structure is arranged in the assembly space, the multi-stage speed reducing structure comprises a worm, a first duplicate gear, a second duplicate gear and an output gear which are meshed in sequence, the worm is connected with the output end of a motor, the output gear is sleeved with an output shaft, the output shaft is connected with an executing part of an active air inlet grille, and the output end of the motor rotates to drive the executing part to rotate through the multi-stage speed reducing structure; the utility model relates to an electric actuator technical field.

Description

Electric actuator for automobile

Technical Field

The utility model relates to an electric actuator technical field more exactly relates to an electric actuator for car.

Background

At present, an output shaft of an electric actuator of an automobile is connected with an actuating element, and the actuating element comprises a blade for opening and closing an automobile front grille, a cover plate for opening or closing a charging port and the like; when the electric actuator is used, the controller outputs signals to the electric actuator, and the opening or closing function of the actuator is completed according to requirements through mechanical transmission matching.

The first duplicate gear of the existing electric actuator for the automobile is usually meshed with a gear, the gear is driven by the rotation of an output end of a motor under the condition of electrifying, and due to the lack of a proper outage locking structure, after the motor is powered off, the position of an executing part cannot be completely fixed, and under severe vibration, the position of the executing part can be changed and cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects and shortcomings of the prior art, the electric actuator with stable and reliable transmission is provided, and comprises:

the inner side of the shell is provided with an assembly space, a multi-stage reduction structure is arranged in the assembly space, the multi-stage reduction structure comprises a worm, a first duplicate gear, a second duplicate gear and an output gear which are meshed in sequence,

the worm is connected to the output end of the motor, the output gear is sleeved with an output shaft, the output shaft is connected with an executing part of the active air inlet grille, and the output end of the motor rotates to drive the executing part to rotate through the multi-stage speed reducing structure.

After the structure above the adoption, the utility model discloses an electric actuator for car compares with prior art, has following advantage: the worm is arranged in the assembly space and meshed with the first duplicate gear, the worm is sleeved at the output end of the motor, the motor rotates through the linkage of the second worm and the first duplicate gear, the first duplicate gear is linked with the second duplicate gear to rotate, the second duplicate gear is linked with the third duplicate gear to rotate, the third duplicate gear is linked with the output gear to rotate, and the output gear and the output shaft synchronously rotate to drive the execution part to rotate so as to adjust the opening and closing of the grille.

By adopting the transmission structure of the worm, when the motor is powered off, the first duplicate gear cannot drive the worm to rotate by utilizing the characteristic of worm transmission, and further the second duplicate gear, the third duplicate gear and the output shaft cannot rotate, namely the position of the executing part is fixed; in addition, the number of duplicate gears is reduced, the size is smaller under the same times of torque amplification, and the device is favorably miniaturized.

As an improvement of the utility model, the one end in assembly space is provided with the motor storage tank, the motor is horizontal embedded in the motor storage tank. Above-mentioned improvement sets up the motor storage tank in the one end in assembly space and is used for the embedded setting of power machine, makes structural configuration reasonable, space utilization high, avoids the motor to spill, reduces debris and gets into, promotes the operational reliability.

As an improvement of the utility model, the assembly space corresponds the protruding baffle that is equipped with of motor output side end face, the baffle offsets with the motor end face to the opening that the output of power supply machine passed is seted up to the baffle. Above-mentioned improvement, the baffle extends the one end that sets up at the motor storage tank, and it offsets with the terminal surface of motor, promotes area of contact, makes the connection of motor firm reliable.

As an improvement of the utility model, a fixing part for fixing the position of the motor is connected between the baffle and the end face of the motor. The baffle that extends sets up and is connected with the motor terminal surface in order to make the connection of motor firm reliable with the fixed mounting of motor to the position of mounting has the characteristics of making things convenient for the dismouting.

As an improvement of the utility model, the worm meshes with the gear wheel of first duplicate gear, the pinion of first duplicate gear meshes with the gear wheel of second duplicate gear, the pinion of second duplicate gear meshes with the gear wheel of third duplicate gear, the pinion of third duplicate gear meshes with output gear's tooth portion, the outside at the output shaft is established to the output gear cover. The improvement ensures reasonable structural layout and reliable operation.

As an improvement of the utility model, the assembly space upper end cover is equipped with the apron, be provided with the round pin axle that supplies first duplicate gear, second duplicate gear and third duplicate gear cover to establish between apron and the casing. The improvement ensures reasonable structural layout and reliable operation.

As an improvement of the utility model the casing of motor one side is provided with the plug, the plug electricity is connected with the circuit board, the circuit board is connected in the assembly space, the both sides position that the assembly space corresponds the circuit board is provided with the setting element, the circuit board is provided with the constant head tank that agrees with the setting element. Above-mentioned improvement, the constant head tank of circuit board agrees with the setting element on the casing, connects the circuit board in circuit board diagonal direction, promotes the firm degree that the circuit board is connected.

As an improvement of the present invention, the circuit board is provided with a slot for the pinion of the first duplicate gear, the gear of the second duplicate gear and the peripheral side of the motor to pass through.

Drawings

Fig. 1 is a schematic structural diagram of the inside of the housing of the present invention.

Fig. 2 is a schematic structural view of the multistage speed reduction mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the local part explosion state of the present invention.

Fig. 4 is a schematic view of an assembly of the present invention.

Shown in the figure: 1. a housing; 1.1, a motor accommodating groove; 1.2, a baffle plate; 1.21, a fixing piece; 12.2, opening; 1.3, positioning parts; 2. a worm; 3. a first duplicate gear; 4. a second duplicate gear; 5. a third duplicate gear; 6. an output gear; 7. a motor; 8. an output shaft; 9. a cover plate; 10. a plug; 11. a circuit board; 11.1 and positioning grooves.

Detailed Description

The invention will be further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1-4, an electric actuator with stable and reliable transmission includes:

a shell 1, an assembly space is arranged at the inner side of the shell 1, a multi-stage speed reducing structure is arranged in the assembly space, the multi-stage speed reducing structure comprises a worm 2, a first duplicate gear 3, a second duplicate gear 4 and an output gear 6 which are meshed in sequence,

worm 2 is connected at the output of

motor

7, and 6 covers of output gear are equipped with output shaft 8, and output shaft 8 is connected with active air-inlet grille's executive component, and motor 7's output is rotatory to be removed through multistage speed reduction structure drive executive component.

The worm 2 is arranged in the assembly space and meshed with the first duplicate gear 3, the worm 2 is sleeved at the output end of the motor 7, the motor 7 rotates through the linkage of the second worm 2 and the first duplicate gear 3, the first duplicate gear 3 is linked with the second duplicate gear 4 to rotate, the second duplicate gear 4 is linked with the third duplicate gear 5 to rotate, the third duplicate gear 5 is linked with the output gear 6 to rotate, and the output gear 6 and the output shaft 8 rotate synchronously to drive the executing part to rotate so as to adjust the opening and closing of the grille.

By adopting the transmission structure of the worm 2, when the motor 7 is powered off, the first duplicate gear 3 can not drive the worm 2 to rotate by utilizing the transmission characteristic of the worm 2, and further the second duplicate gear 4, the third duplicate gear 5 and the output shaft 8 can not rotate, namely the position of the executing piece is fixed, the executing piece has the power-off self-locking function by the improvement, and the device has better performance and stable and reliable transmission; in addition, the number of duplicate gears is reduced, the size is smaller under the same times of torque amplification, and the device is favorably miniaturized.

One end of the assembly space is provided with a motor 7 accommodating groove 1.1, and the motor 7 is transversely embedded in the motor 7 accommodating groove 1.1. Above-mentioned improvement sets up motor 7 storage tank 1.1 in the one end of assembly space and is used for the embedded setting of power supply machine 7, makes structural layout reasonable, space utilization high, avoids motor 7 to spill, reduces debris and gets into, promotes the operational reliability.

The assembly space corresponds motor 7 output end one side terminal surface and convexly is equipped with baffle 1.2, and baffle 1.2 offsets with motor 7 terminal surface to baffle 1.2 sets up the opening 12.2 that the output of power supply motor 7 passed. Above-mentioned improvement, baffle 1.2 extends the one end that sets up at motor 7 storage tank 1.1, and it offsets with the terminal surface of motor 7, promotes area of contact, makes motor 7's connection firm reliable.

A fixing piece 1.21 for fixing the position of the motor 7 is connected between the baffle plate 1.2 and the end face of the motor 7. The fixing piece 1.21 connected with the end face of the motor 7 to fix the motor 7 is arranged on the extended baffle plate 1.2, so that the motor 7 is stably and reliably connected, and the position of the fixing piece 1.21 has the characteristic of being convenient to disassemble and assemble.

The worm 2 is meshed with a large gear of the first duplicate gear 3, a small gear of the first duplicate gear 3 is meshed with a large gear of the second duplicate gear 4, a small gear of the second duplicate gear 4 is meshed with a large gear of the third duplicate gear 5, a small gear of the third duplicate gear 5 is meshed with a tooth part of the output gear 6, and the output gear 6 is sleeved on the outer side of the output shaft 8. The improvement ensures reasonable structural layout and reliable operation.

The upper end cover of the assembly space is provided with a cover plate 9, and a pin shaft for sleeving the first duplicate gear 3, the second duplicate gear 4 and the third duplicate gear 5 is arranged between the cover plate 9 and the shell 1. The improvement ensures reasonable structural layout and reliable operation.

The shell 1 close to one side of the motor 7 is provided with a plug 10, the plug 10 is electrically connected with a circuit board 11, the circuit board 11 is connected in an assembly space, positioning parts 1.3 are arranged at positions of the assembly space corresponding to two sides of the circuit board 11, and the circuit board 11 is provided with a positioning groove 11.1 matched with the positioning parts 1.3. In the improvement, the positioning groove 11.1 of the circuit board 11 is matched with the positioning piece 1.3 on the shell 1, the circuit board 11 is connected in the diagonal direction of the circuit board 11, and the connection stability of the circuit board 11 is improved.

The circuit board 11 is provided with a slot through which the pinion of the first duplicate gear 3, the bull gear of the second duplicate gear 4 and the peripheral side of the motor 7 pass.

The working principle is as follows: through holes for the fixing pieces 1.21 to pass through are respectively arranged at two sides of the opening 12.2 on the baffle plate 1.2, the two fixing pieces 1.21 pass through the through holes to be connected with two opposite positions of the shell of the motor 7, and the connection stability of the motor 7 is improved;

the first duplicate gear 3, the second duplicate gear 4, the third duplicate gear 5 and the output gear 6 all adopt gears with straight tooth structures, and the transmission is stable and reliable.

Above only the utility model discloses a preferred embodiment, the utility model discloses a scope not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An electric actuator for a motor vehicle, comprising:

the gear transmission mechanism comprises a shell (1), wherein an assembly space is arranged on the inner side of the shell (1), a multi-stage reduction structure is arranged in the assembly space, the multi-stage reduction structure comprises a worm (2), a first duplicate gear (3), a second duplicate gear (4), a third duplicate gear (5) and an output gear (6) which are meshed in sequence,

the output of motor (7) is connected in worm (2), output gear (6) cover is equipped with output shaft (8), output shaft (8) are connected with the executive component of active air-inlet grille, and the output rotation of motor (7) drives the executive component through multistage speed reduction structure and removes.

2. An electric actuator for a vehicle according to claim 1, wherein: one end of the assembly space is provided with a motor (7) accommodating groove (1.1), and the motor (7) is transversely embedded in the motor (7) accommodating groove (1.1).

3. An electric actuator for a vehicle according to claim 2, wherein: the assembling space is convexly provided with a baffle (1.2) corresponding to the end face of one side of the output end of the motor (7), the baffle (1.2) is abutted to the end face of the motor (7), and the baffle (1.2) is provided with an opening (12.2) for the output end of the motor (7) to penetrate.

4. An electric actuator for a vehicle according to claim 3, wherein: and a fixing piece (1.21) used for fixing the position of the motor (7) is connected between the baffle (1.2) and the end surface of the motor (7).

5. An electric actuator for a vehicle according to claim 2, wherein: the worm (2) is meshed with a large gear of a first duplicate gear (3), a small gear of the first duplicate gear (3) is meshed with a large gear of a second duplicate gear (4), a small gear of the second duplicate gear (4) is meshed with a large gear of a third duplicate gear (5), a small gear of the third duplicate gear (5) is meshed with a tooth part of an output gear (6), and the output gear (6) is sleeved on the outer side of an output shaft (8).

6. An electric actuator for a vehicle according to claim 2, wherein: the assembling space upper end cover is provided with a cover plate (9), and a pin shaft for sleeving the first duplicate gear (3), the second duplicate gear (4) and the third duplicate gear (5) is arranged between the cover plate (9) and the shell (1).

7. An electric actuator for a vehicle according to claim 2, wherein: be close to casing (1) of motor (7) one side is provided with plug (10), plug (10) electricity is connected with circuit board (11), circuit board (11) are connected in the assembly space, the both sides position that the assembly space corresponds circuit board (11) is provided with setting element (1.3), circuit board (11) are provided with constant head tank (11.1) that agree with setting element (1.3).

8. An electric actuator for a vehicle according to claim 7, wherein: the circuit board (11) is provided with a small gear of the first duplicate gear (3), a large gear of the second duplicate gear (4) and a slot through which the peripheral side of the motor (7) passes.