Improved electronic parking actuating mechanism

Abstract

The utility model relates to an improved electronic parking actuating mechanism, which solves the technical problems that the size of the actuating mechanism is larger and the structural design needs to be optimized, and comprises a bottom plate, an actuating bin is fixed on the bottom plate, a motor is fixed on the bottom plate, a worm arranged in the actuating bin is fixed at the end of the actuating motor, and the left side of the worm is meshed with a worm gear. A first small gear is fixed at the coaxial lower end of the worm gear, the first small gear is meshed with a second large gear, a second small gear is fixed at the coaxial lower end of the second large gear, the second small gear is meshed with a third large gear, a third small gear is fixed at the coaxial upper end of the third large gear, and the third small gear is meshed with a fourth large gear; according to the utility model, a plurality of gears which are vertically mounted in the prior art are changed into transverse mounting, so that the overall height is reduced, the long-time lubrication performance of lubricating oil is prolonged, the pulling force and the transmission force are more stable, and the overall stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of parking actuators, in particular to an improved electronic parking actuator. Background Art

[0002] The parking actuator is an important component of the power output in the parking system of vehicles such as cars and tricycles. It is responsible for controlling the contact force between the parking plate and the parking disc, thereby realizing the parking function of the vehicle.

[0003] This application is mainly an update and iteration of the product previously applied for by the applicant. It is a new product that is summarized and improved after market application and market feedback.

[0004] The predecessor products mainly include utility model patents with patent number 202123111780.1 and application number 2023236111232 (currently unpublished). Both utility model patents were previously applied for by the applicant. Our company has made further improvements based on the market feedback and further research and development of R&D personnel to further improve product quality. The main reasons for the improvement are:

[0005] 1. The overall volume of previous products was relatively large, so the structure and volume were readjusted.

[0006] 2. Previously, no matter whether the worm was at the top or the bottom, the lubricating oil would drip to the bottom of the bin after long-term use, and there would still be gears or worms at the top that had not been lubricated with lubricating oil for a long time.

[0007] 3. The previous parking line was in a special parking compartment, which took up space, and the pulling force of the cable wheel was at an eccentric position on the side, which caused eccentricity and instability in the pulling force and transmission force. In addition, the direction of the parking line was reverse parking, which limited the installation position space.

[0008] On this basis, the utility model further improves the previously applied patent and proposes an improved electronic parking actuator to solve this problem. Utility Model Content

[0009] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an improved electronic parking actuator. The utility model has a novel structure and ingenious conception, and effectively solves the technical problems of the actuator being large in size and the structural design to be optimized.

[0010] An improved electronic parking actuator is characterized in that it includes a base plate, an actuator chamber is fixed on the base plate, an actuator motor placed outside the actuator chamber is fixed on the base plate, a worm placed inside the actuator chamber is fixed to the end of the actuator motor, a worm wheel placed laterally is meshed on the left side of the worm, a first pinion is fixed on the coaxial lower end of the worm wheel, the first pinion is meshed with a second large gear, a second pinion is fixed on the coaxial lower end of the second large gear, the second pinion is meshed with a third large gear, a third pinion is fixed on the coaxial upper end of the third large gear, the third pinion is meshed with a fourth large gear, a wire pulling wheel is integrally connected to the upper end of the fourth large gear, and a wire pulling hole is opened on the side wall of the actuator chamber.

[0011] Preferably, the first transmission shaft, the second transmission shaft, the third transmission shaft, and the fourth transmission shaft are vertically installed in the execution chamber, the worm gear and the first pinion are sleeved on the first transmission shaft, the second large gear and the second small gear are sleeved on the second transmission shaft, the third large gear and the third small gear are sleeved on the third transmission shaft, and the fourth large gear and the wire pulling wheel are sleeved on the fourth transmission shaft.

[0012] Preferably, the diameters of the worm gear, the second large gear, and the third large gear increase sequentially.

[0013] Preferably, a positioning clamping spring is installed on the fourth transmission shaft, and a shaft sleeve is sleeved on the third transmission shaft.

[0014] Preferably, the execution chamber consists of a bottom plate, a front side plate, a rear side plate, a left side plate, a right side plate, and a top plate.

[0015] Preferably, the wire drawing hole is disposed on the front side panel, the rear side panel, the left side panel, or the right side panel.

[0016] Preferably, a control box placed beside the execution motor is fixed on the base plate.

[0017] Preferably, a parking execution shell is buckled on the bottom plate, a wiring hole is opened on one side of the parking execution shell, and corresponding bolt holes are opened on the parking execution shell and the bottom plate.

[0018] Preferably, the actuator motor includes a motor housing, a stator, a rotor, a coil, and a commutator. The front end of the rotor is coaxially and integrally connected to a worm gear disposed outside the motor housing, and the rear end of the rotor is coaxially and integrally connected to a rotating rod disposed outside the motor housing, and a rotating bolt is fixed to the end of the rotating rod.

[0019] The utility model has the following technical effects.

[0020] The utility model reduces the overall height by changing the multiple gears that were previously installed vertically to horizontal installation, that is, changing the original vertical placement to horizontal placement, so that the lubricating oil can drip to the bottom of the execution chamber after being placed for a long time and submerge all the gears, thereby extending the long-term lubrication performance of the lubricating oil, and the wire pulling wheel is installed in the execution chamber, and a separate parking chamber is no longer used, so the overall volume is reduced and no space is occupied, and the pulling force of the parking wire is also disposed in the execution chamber instead of the previous eccentric side, so that the pulling force and transmission force are more stable, thereby improving the overall stability, and by opening wire pulling holes on different side walls, the overall installation can adapt to more installation environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a front sectional schematic diagram of the utility model.

[0023] Figure 2 It is a side sectional schematic diagram of the utility model.

[0024] Figure 3 It is a side view schematic diagram of the utility model.

[0025] Figure 4 It is a three-dimensional schematic diagram of the parking execution shell of the utility model.

[0026] Figure 5 It is a front view schematic diagram of the parking execution shell of the utility model.

[0027] Figure 6 This is a schematic diagram of the internal structure of the execution motor of the utility model.

[0028] Reference numerals:

[0029] 1-bottom plate, 2-execution chamber, 3-execution motor, 4-worm, 5-worm wheel, 6-first small gear, 7-second large gear, 8-second small gear, 9-third large gear, 10-third small gear, 11-fourth large gear, 12-wire pulley, 13-wire pull hole, 14-first transmission shaft, 15-second transmission shaft, 16-third transmission shaft, 17-fourth transmission shaft, 18-positioning spring, 19-front side plate, 20-rear side plate, 21-left side plate, 22-right side plate, 23-top plate, 24-sleeve, 25-control box, 26-parking execution shell, 27-wire hole, 28-bolt hole, 29-motor shell, 30-stator, 31-rotor, 32-coil, 33-commutator, 34-rotating rod, 35-rotating bolt. DETAILED DESCRIPTION

[0030] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figures 1 to 6 The details of the embodiments will be clearly presented. The contents mentioned in the following embodiments are all based on the drawings in the specification.

[0031] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0032] Embodiment 1: The utility model is an improved electronic parking actuator, mainly for the patents that have been applied for before. After market application and customer feedback, the product optimization design is carried out again. The R&D personnel have made further improvements on this, including a bottom plate 1, an execution chamber 2 is fixed on the bottom plate 1, the execution chamber 2 is smaller than the bottom plate 1, and the execution chamber 2 is surrounded by the bottom plate 1, the front side plate 19, the rear side plate 20, the left side plate 21, the right side plate 22, and the top plate 23. The fixing is welded or bolted. The top plate 23 is detachable. The interior of the execution chamber 2 is a cavity. An execution motor 3 placed outside the execution chamber 2 is fixed on the bottom plate 1. The execution motor 3 is fixed to the front side plate 19 of the execution chamber 2 by means of bolts through the motor plate. The front side plate 19 is provided with a motor shaft hole. A worm 4 is fixed to the end of the execution motor 3. The worm 4 passes through the motor shaft hole and is placed inside the execution chamber 2. A vertically arranged first transmission shaft 14, a second transmission shaft 15, a third transmission shaft 16, and a fourth transmission shaft 17 are vertically installed for vertical rotation in the execution chamber 2, so that the gears subsequently installed on the shaft become horizontally laid flat. This can greatly reduce the height of the execution chamber 2. A horizontally laid worm wheel 5 is meshed on the left side of the worm wheel 4. A first pinion 6 is coaxially fixed to the lower end of the worm wheel 5. The worm wheel 5 and the first pinion 6 are The gear 6 is fixedly sleeved on the first transmission shaft 14, the first pinion 6 is meshed with the second large gear 7, the lower end of the second large gear 7 is coaxially fixed with the second pinion 8, the second large gear 7 and the second pinion 8 are fixedly sleeved on the second transmission shaft 15, the second pinion 8 is meshed with the third large gear 9, the upper end of the third large gear 9 is coaxially fixed with the third pinion 10, the third large gear 9 and the third pinion 10 are coaxially fixedly sleeved on the third transmission shaft 16, the third transmission shaft 16 is sleeved with a shaft sleeve for fixing the third large gear 9 and the third pinion 10, the third pinion 10 is meshed with the fourth large gear 11, the upper end of the fourth large gear 11 is coaxially fixed with the third pinion 10, A wire pulling wheel 12 is fixed on the shaft, the fourth large gear 11 and the wire pulling wheel 12 are fixedly mounted on the fourth transmission shaft 17, a positioning spring 18 is mounted on the first transmission shaft 14 and is placed between the fourth large gear 11 and the wire pulling wheel 12 for positioning the fourth large gear 11 and the wire pulling wheel 12, a parking wire is wound around the wire pulling wheel 12, a wire pulling hole 13 is provided on the side wall of the execution chamber 2, the wire pulling hole 13 is used to pass the parking wire, different actuators are provided with wire pulling holes 13 on the front side panel 19 or the rear side panel 20 or the left side panel 21 or the right side panel 22, and the actuator with the wire pulling hole 13 at a suitable position is selected according to different installation environments.

[0033] When the execution motor drives the worm 4 to rotate, the worm 4 engages with the worm wheel 5 next to it to rotate, and the worm wheel 5 coaxially drives the first small gear 6 to rotate, the first small gear 6 engages with the second large gear 7 to reduce speed, the second large gear 7 coaxially drives the second small gear 8 to rotate, the second small gear 8 engages with the third large gear 9 to reduce speed, the third large gear 9 coaxially drives the third small gear 10 to rotate, the third small gear 10 engages with the four large gears 11 to rotate, the fourth large gear 11 coaxially drives the wire pulley 12 to rotate, and the wire pulley 12 winds the parking wire to perform parking.

[0034] The diameters of the worm gear 5, the second large gear 7, and the third large gear 9 are increased in sequence, which can improve the stability and strength of the overall transmission.

[0035] In the present application, the worm 4 of the execution motor is meshed with the side of the worm wheel 5, so that the worm wheel 5, the first small gear 6, the second large gear 7, the second small gear 8, the third large gear 9, the third small gear 10, and the fourth large gear 11 are all installed horizontally and flatly, and the overall installation space height becomes smaller. After lubricating oil is added to the execution chamber 2, after a long period of use, the lubricating oil sinks to the bottom of the execution chamber 2 due to gravity. After sinking, it can still submerge the above-mentioned gears, and can continue to lubricate them, thereby extending the lubrication of the execution chamber 2 during operation, and also avoiding the waste of lubricating oil.

[0036] The traditional parking actuator and control box are two separate entities, which are installed in different positions. However, in the present application, a control box 25 placed next to the actuator motor 3 is fixed on the base plate 1, and the parking actuator and the control box 25 are integrated together. Not only the installation space is reduced, but also the connection line is greatly shortened, which is more convenient for debugging, installation and maintenance.

[0037] A parking execution shell 26 is buckled on the base plate 1, and the parking execution shell 26 buckles the parking execution mechanism and the control box 25 in a space. The parking execution shell 26 is rectangular as a whole, with a cavity inside and an opening at the lower end. A wiring hole 27 is opened on one side of the parking execution shell 26, which is convenient for the installation of the line of the control box 25 and for heat dissipation. Corresponding bolt holes 28 are opened on the parking execution shell 26 and the base plate 1. There are 6 bolt holes 28, which are convenient for bolting the base plate box and the parking execution shell 26.

[0038] When working normally, the actuator motor 3 relies on the control box 25 to achieve braking and releasing. When the actuator motor 3 fails, for example, the actuator motor 3 loses its power source and cannot be electronically controlled. At this time, the vehicle braking and releasing cannot be controlled. Especially when the vehicle brakes, if the parking actuator is not released, the vehicle will not be able to move. Therefore, the utility model is mainly used for manual control to achieve braking and releasing of the actuator motor 3, and it is mainly used for 4S shops or maintenance personnel to use during maintenance.

[0039] The actuator motor 3 includes a motor housing 29, a stator 30, a rotor 31, a coil 32 (winding), an armature, a commutator 33, a permanent magnet, a brush (brushless), terminals and other parts, which are existing structures of the actuator motor 3, and the main purpose is to enable the actuator motor 3 to work normally.

[0040] The present application mainly includes a worm 4 disposed outside the motor housing 29 coaxially and integrally connected to the front end of the rotor 31, which is equivalent to directly opening a thread on the motor shaft instead of connecting the worm via a connector, that is, the original motor shaft is directly and integrally changed to the worm 4, the purpose of which is to make the worm wheel 5 in the parking actuator more stable during meshing. A rotating rod 34 disposed outside the motor housing 29 is coaxially and integrally connected to the rear end of the rotor 31, so that manual control of the rotating rod 34 is convenient. A rotating bolt 35 is fixed to the end of the rotating rod 34, so that manual rotation of the rotating bolt 35 can synchronously drive the rotor 31 and the worm 5 to rotate.

[0041] When the actuator motor loses power and cannot be electronically controlled, maintenance personnel can manually rotate the rotating bolt 35 to drive the rotor 31 and the worm 5 to rotate, thereby achieving braking and releasing of the parking actuator.

[0042] The utility model changes the multiple gears that were previously installed vertically to horizontal installation, that is, changes the original vertical placement to horizontal placement, so that the overall height is reduced and the structural design is more reasonable. After the lubricating oil is placed for a long time, it drips to the bottom of the execution chamber and can submerge all the gears, thereby extending the long-term lubrication performance of the lubricating oil.

[0043] In addition, the cable pulling wheel is installed in the execution compartment, and a separate parking compartment is no longer used, so the overall volume is reduced and no space is occupied.

[0044] The pulling force of the parking line is also transferred to the execution chamber from the previous eccentric side, making the pulling force and transmission force more stable and improving the overall stability.

[0045] By opening wire pulling holes on different side walls, the overall installation can adapt to more installation environments.

[0046] By installing the control box and the parking actuator together, the occupied space is reduced, the wiring is convenient, and the maintenance and replacement are convenient.

[0047] By arranging a rotating rod, the executing motor can be manually controlled to brake and release after the executing motor loses power.

[0048] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. An improved electronic parking actuator, characterized in that: The invention comprises a bottom plate (1), an execution chamber (2) is fixed on the bottom plate (1), an execution motor (3) arranged outside the execution chamber (2) is fixed on the bottom plate (1), a worm (4) arranged inside the execution chamber (2) is fixed on the end of the execution motor (3), a worm wheel (5) arranged laterally is meshed on the left side of the worm wheel (4), a first pinion (6) is fixed on the coaxial lower end of the worm wheel (5), a second large gear (7) is meshed on the first pinion (6), a second pinion (8) is fixed on the coaxial lower end of the second large gear (7), a third pinion (9) is meshed on the second pinion (8), a third pinion (10) is fixed on the coaxial upper end of the third large gear (9), a fourth large gear (11) is meshed on the third pinion (10), a wire pulling wheel (12) is integrally connected to the upper end of the fourth large gear (11), and a wire pulling hole (13) is opened on the side wall of the execution chamber (2).

2. An improved electronic parking actuator according to claim 1, characterized in that: A first transmission shaft (14), a second transmission shaft (15), a third transmission shaft (16), and a fourth transmission shaft (17) are vertically installed in the execution chamber (2); the worm gear (5) and the first pinion gear (6) are sleeved on the first transmission shaft (14); the second large gear (7) and the second pinion gear (8) are sleeved on the second transmission shaft (15); the third large gear (9) and the third pinion gear (10) are sleeved on the third transmission shaft (16); and the fourth large gear (11) and the wire pulling wheel (12) are sleeved on the fourth transmission shaft (17).

3. The improved electronic parking actuator according to claim 1, characterized in that: The diameters of the worm gear (5), the second large gear (7), and the third large gear (9) increase sequentially.

4. An improved electronic parking actuator according to claim 2, characterized in that: A positioning clamping spring (18) is installed on the fourth transmission shaft (17), and a shaft sleeve (24) is sleeved on the third transmission shaft (16).

5. The improved electronic parking actuator according to claim 1, characterized in that: The execution chamber (2) is composed of a bottom plate (1), a front side plate (19), a rear side plate (20), a left side plate (21), a right side plate (22), and a top plate (23).

6. An improved electronic parking actuator according to claim 5, characterized in that: The wire pulling hole (13) is disposed on the front side plate (19), the rear side plate (20), the left side plate (21), or the right side plate (22).

7. The improved electronic parking actuator according to claim 1, characterized in that: A control box (25) is fixed on the base plate (1) and is placed beside the actuator motor (3).

8. The improved electronic parking actuator according to claim 1, characterized in that: A parking execution shell (26) is buckled onto the bottom plate (1), a wire hole (27) is provided on one side of the parking execution shell (26), and corresponding bolt holes (28) are provided on the parking execution shell (26) and the bottom plate (1).

9. The improved electronic parking actuator according to claim 1, characterized in that: The actuator motor (3) comprises a motor housing (29), a stator (30), a rotor (31), a coil (32), and a commutator (33); the front end of the rotor (31) is coaxially and integrally connected to a worm (4) disposed outside the motor housing (29); the rear end of the rotor (31) is coaxially and integrally connected to a rotating rod (34) disposed outside the motor housing (29); and a rotating bolt (35) is fixed to the end of the rotating rod (34).

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