CN116971679A

CN116971679A - Concealed automobile door handle actuator

Info

Publication number: CN116971679A
Application number: CN202310977260.3A
Authority: CN
Inventors: 周金威; 周玉伟; 张军伟; 赵启智
Original assignee: Shanghai Xinyao Electronics Co Ltd
Current assignee: Shanghai Xinyao Electronics Co Ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2023-10-31

Abstract

The utility model provides a hidden car door handle executor, includes shell, power supply, drive mechanism, ejector pin and PCB control panel, have in the shell and be used for holding the first installation cavity of power supply, be used for holding the second installation cavity of ejector pin, be used for holding the third installation cavity of PCB control panel and be used for holding drive mechanism's fourth installation cavity, the head in second installation cavity forms by the pore that the head of ejector pin passed, the power supply passes through drive mechanism and ejector pin and is connected, the PCB control panel with the power supply electricity is connected, the shell is formed by upper shell and inferior valve amalgamation, and both link to each other through laser welding, and the welding muscle that forms surrounds and seals first installation cavity, second installation cavity, third installation cavity and fourth installation cavity. The actuator has good tightness and can prevent water from entering.

Description

Concealed automobile door handle actuator

Technical Field

The application belongs to the technical field of hidden car door handles, and particularly relates to a hidden car door handle actuator.

Background

With the popularization of electric vehicles, in order to reduce wind resistance caused by the exposure of a door handle and reduce energy consumption of the electric vehicles, and meanwhile, in order to achieve attractive appearance, the hidden type automobile door handle is widely applied to the electric vehicles, and a hidden type door handle actuator is used as an execution structure of the hidden type door handle and can eject or retract the door handle from a vehicle door.

The conventional door handle actuator has poor sealability and is easy to be filled with water, so that internal devices are damaged.

Disclosure of Invention

Based on the technical problems, the hidden automobile door handle actuator with good sealing performance is provided.

The technical scheme adopted by the application is as follows:

the utility model provides a hidden car door handle executor, includes shell, power supply, drive mechanism, ejector pin and PCB control panel, have in the shell and be used for holding the first installation cavity of power supply, be used for holding the second installation cavity of ejector pin, be used for holding the third installation cavity of PCB control panel and be used for holding drive mechanism's fourth installation cavity, the head in second installation cavity forms by the pore that the head of ejector pin passed, the power supply passes through drive mechanism and ejector pin to be connected, the PCB control panel with the power supply electricity is connected, its characterized in that, the shell is formed by upper shell and inferior valve amalgamation, and both link to each other through laser welding, and the welding muscle that forms surrounds and seals first installation cavity, second installation cavity, third installation cavity and fourth installation cavity.

The actuator disclosed by the application has good tightness, and can prevent internal devices from being damaged due to internal water inflow.

Drawings

The application is described in detail below with reference to the attached drawings and detailed description:

FIG. 1 is an exploded view of the present application;

FIG. 2 is a schematic diagram of the structure of the present application;

fig. 3 is a schematic view of the internal cavity of the housing of the present application.

Detailed Description

Embodiments of the present application will be described below with reference to the drawings. The embodiments described in the present specification are not intended to be exhaustive or to represent the only embodiments of the present application. The following examples are presented for clarity of illustration of the application of the present patent and are not intended to limit the embodiments thereof. It will be apparent to those skilled in the art that various changes and modifications can be made in the embodiment described, and that all the obvious changes or modifications which come within the spirit and scope of the application are deemed to be within the scope of the application.

As shown in fig. 1 and 2, an embodiment of the present application provides a hidden door handle actuator, which includes a housing 110, a power source 120, a first transmission shaft 130, a second transmission shaft 140, a push rod 150, and a PCB control board 160.

The outer case 110 is formed by combining an upper case 111 and a lower case 112, and as shown in fig. 3, has a first installation cavity 113, a second installation cavity 114, a third installation cavity 115, and a fourth installation cavity 116 therein, wherein the lower part of the fourth installation cavity 116 is connected with the head part (left side) of the first installation cavity, the upper part of the fourth installation cavity 116 is connected with the tail part (left side) of the second installation cavity 114, and the head part of the second installation cavity 114 forms a duct 117 penetrated by the head part of the ejector rod 150.

The power source 120 employs a motor, which is accommodated in the first installation cavity 113, and an output shaft 121 thereof passes through a lower portion of the fourth installation cavity 116, and as shown in fig. 3, a first bearing groove 116a is formed at a left side of the lower portion of the fourth installation cavity 116, a first bearing 116b is engaged in the first bearing groove 116a, and the first bearing 116b is connected with a head portion of the output shaft 121.

The output shaft 121 is provided with a worm 121a.

As shown in fig. 1 and 3, the first mounting cavity 113 is internally provided with a first contact pin 113a which is integrally injection-molded and is used for being electrically connected with a motor and a reed groove 113b which is positioned at the tail (right side) of the first mounting cavity 113, and a metal reed 113c which axially abuts against the tail of the motor is arranged in the reed groove 113b, so that the metal shaft of the motor is prevented from moving, and noise is reduced.

The first transmission shaft 130 and the second transmission shaft 140 constitute a transmission mechanism, and the power source 120 is connected to the jack 150 through the transmission mechanism.

Specifically, the first transmission shaft 130 is accommodated in the fourth mounting chamber 116 in the up-down direction, and has a gear portion 131 and a worm portion 132 thereon, and the gear portion 131 is engaged with the worm 121a by helical teeth thereon.

The first transmission shaft 130 is rotatably sleeved on the concentric positioning shaft 170, and two ends of the positioning shaft 170 are connected with positioning shaft mounting grooves 116c on the upper side and the lower side of the fourth mounting cavity 116, so that the first transmission shaft 130 is positioned in the fourth mounting cavity 116.

The second transmission shaft 140 is disposed in the left-right direction, and has a tail portion accommodated in the fourth mounting chamber 116, the tail portion being provided with a gear 141, the gear 141 being engaged with the worm portion 132 by helical teeth thereon, and a head portion accommodated in the second mounting chamber 114, and a peripheral surface thereof being provided with an external thread 142.

As shown in fig. 3, the left side of the fourth mounting cavity 116 has a second bearing groove 116d, and a second bearing 116e is clamped in the second bearing groove 116d, and the second bearing 116e is connected to the tail end of the second transmission shaft 140.

The first bearing 116b and the second bearing 116e are respectively used for avoiding the motor and the second transmission shaft 140 from jumping during operation, so that the motor and the second transmission shaft can operate more smoothly during operation, and both the first bearing 116b and the second bearing 116e can adopt oil-containing bearings.

The push rod 150 is accommodated in the second mounting chamber 114 in the left-right direction, and has an internally threaded hole connected to the head external thread 142 of the second transmission shaft 140.

As shown in fig. 3, a sliding groove 114a located in the lower shell 112 and having the same direction as the ejector rod (left-right direction) is formed in the second mounting cavity 114, as shown in fig. 1, a T-shaped sliding block 151 in sliding fit with the sliding groove 114a is formed at the tail of the ejector rod 150, a rubber cap 152 is disposed at the head of the ejector rod 150, an installation groove 153 matched with the rubber cap 151 is disposed at the head of the ejector rod 150, a clamping connector 152a is disposed on the rubber cap 152, the clamping connector 152a is clamped with the installation groove 153, the rubber cap 152 plays a buffering role, the ejector rod 150 is prevented from being in hard contact with a door handle structural member, and impact and noise are reduced.

The PCB control board 160 is accommodated in the third mounting chamber 115, as shown in fig. 3, the third mounting chamber 115 has therein integrally injection-molded second pins 115a for electrical connection with the PCB control board 160, and the second pins 115a are electrically connected with the first pins 113a, thereby achieving electrical connection of the PCB control board 160 with the motor.

The upper shell 111 and the lower shell 112 are connected by laser welding, as shown in fig. 3, the formed welding rib 118 encloses and seals the first installation cavity 113, the second installation cavity 114, the third installation cavity 115 and the fourth installation cavity 116, prevents water from entering and prevents damage to internal devices, further, a first sealing ring installation groove 119a is formed at the joint of the fourth installation cavity 116 and the second installation cavity 114, a first sealing ring 180 is arranged in the first sealing ring installation groove 119a, a second sealing ring 190 is arranged in the second installation cavity 114 and the joint of the duct 117, and the internal devices are safer.

The working principle of the actuator of the embodiment of the application is as follows:

extension mode: when the PCB control board 160 receives an external door opening command, the driving motor operates in the forward direction, the first transmission shaft 130 is driven to rotate in the forward direction through the worm 121a and the gear portion 131 on the first transmission shaft 130, and then the second transmission shaft 140 is driven to rotate in the forward direction through the worm portion 132 of the first transmission shaft 130 and the gear 141 of the second transmission shaft 140, under the cooperation of the external thread 142 of the second transmission shaft 140 and the internal thread hole of the ejector rod 150, the ejector rod 150 is driven to displace in a straight line, the head of the ejector rod 150 extends out of the shell through the hole 117, the door handle of the automobile is pushed out from the door, when the door handle extends out of the door, the handle structure triggers the extending switch, the system receives the handle extending switch command and no longer supplies power to the PCB control board 160.

Retraction mode: when the PCB control board 160 receives an external retraction command, the driving motor is operated in the opposite direction, so that the head of the push rod 150 is retracted from the outside of the housing through the hole 117, the door handle is retracted into the door, and when the door handle is completely retracted, the handle structure triggers the retraction switch, and the system receives the retraction switch command and does not supply power to the PCB control board 160.

Ice breaking mode: when the PCB control board 160 receives an external door opening instruction, the driving motor operates positively, the ejector rod 150 is driven, the handle structure cannot trigger the extension switch because the handle is frozen, at this time, the PCB control board 160 increases output current, increases motor torque, increases driving force until the handle breaks an ice layer, extends out of the vehicle door, and is used for preventing the motor from being burnt by heavy current.

The first transmission shaft 130 and the second transmission shaft 140 are used for transmission, which has the advantages of large ejection force and high running speed, and other structures can be used for transmission.

Therefore, the executor disclosed by the embodiment of the application has good tightness, and internal devices can be prevented from being damaged due to internal water inflow.

In addition, the actuator provided by the embodiment of the application has the advantage of low noise.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a hidden car door handle executor, includes shell, power supply, drive mechanism, ejector pin and PCB control panel, have in the shell and be used for holding the first installation cavity of power supply, be used for holding the second installation cavity of ejector pin, be used for holding the third installation cavity of PCB control panel and be used for holding drive mechanism's fourth installation cavity, the head in second installation cavity forms by the pore that the head of ejector pin passed, the power supply passes through drive mechanism and ejector pin to be connected, the PCB control panel with the power supply electricity is connected, its characterized in that, the shell is formed by upper shell and inferior valve amalgamation, and both link to each other through laser welding, and the welding muscle that forms surrounds and seals first installation cavity, second installation cavity, third installation cavity and fourth installation cavity.

2. The hidden automobile door handle actuator according to claim 1, wherein the fourth mounting cavity is connected with the head of the first mounting cavity and the tail of the second mounting cavity, the power source is a motor, an output shaft of the power source is located in the fourth mounting cavity, a worm is arranged on the output shaft, the transmission mechanism comprises a first transmission shaft and a second transmission shaft, the first transmission shaft is provided with a gear part and a worm part, the gear part is meshed with the worm, the tail of the second transmission shaft is provided with a gear, the peripheral surface of the head is provided with external threads, the gear is meshed with the worm part, and the ejector rod is provided with an internal thread hole connected with the head of the second transmission shaft.

3. The hidden door handle actuator of claim 2, wherein a first seal ring is disposed at a junction of the fourth mounting cavity and the second mounting cavity, and a second seal ring is disposed at a junction of the second mounting cavity and the tunnel.

4. A hidden car door handle actuator according to claim 2 or 3, wherein the first mounting cavity is provided therein with a first pin for electrical connection with the motor and a reed for axial abutment against the tail of the motor.

5. The hidden door handle actuator of claim 4, wherein the second mounting cavity is formed with a sliding slot in the same direction as the ejector rod, the tail of the ejector rod is formed with a sliding block in sliding fit with the sliding slot, and the head of the ejector rod is provided with a rubber cap.

6. The concealed automobile door handle actuator of claim 5 wherein a second pin is disposed in the third mounting cavity for electrical connection with the PCB control board, the second pin being electrically connected with the first pin.

7. The hidden door handle actuator of claim 6, wherein the first drive shaft is rotatably sleeved on a positioning shaft, and two ends of the positioning shaft are connected with the fourth mounting cavity.

8. The hidden door handle actuator of claim 7, wherein a first bearing and a second bearing are disposed within the fourth mounting cavity, the first bearing being coupled to the head of the output shaft, the second bearing being coupled to the tail end of the second drive shaft.