Novel electronic parking actuator structure

Abstract

The utility model discloses a novel electronic parking actuator structure, relates to the technical field of vehicle equipment, and can solve the problem that in the prior art, in the working process of an actuator in an existing electronic parking system, the running state of the actuator cannot be presented to a driver in real time, and consequently the driver has cognitive deviation on the actual state of a vehicle. In the working process, after the push rod motor is started, the steel wire rope is pulled through the mechanical action of the push rod motor, and then the steel wire rope effectively transmits the borne pulling force to the brake. After receiving the pulling force, the brake immediately carries out tensioning operation on a wheel brake shoe so as to effectively brake the wheel and ensure the safety of vehicle driving, and the current sensor is used for accurately measuring the current of the motor, so that a driver can intuitively know the real-time working state of the push rod motor, and the driving safety of the vehicle is ensured. Therefore, cognitive errors possibly occurring in the driving process of the driver are avoided, and the driving accuracy and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle equipment, in particular to a novel electronic parking actuator structure. Background Art

[0002] Electronic parking brake technology is an advanced technology that uses electronic control to achieve parking braking. When the driver presses the control switch to perform parking or emergency braking, the vehicle's electronic control unit (ECU) receives feedback from various sensors and issues parking or emergency braking commands to the actuator. The actuator then operates according to the command and actuates the brakes to complete the parking or emergency braking task.

[0003] However, the current electronic parking system's actuators don't display their operating status to the driver in real time during operation. This can lead to a misperception of the vehicle's actual status, potentially affecting the accuracy and safety of driving operations. Utility Model Content

[0004] In order to solve the problem in the prior art that the operating status of the actuator in the current electronic parking system cannot be presented to the driver in real time during operation, resulting in the driver's cognitive deviation from the actual status of the vehicle, the present application provides a new electronic parking actuator structure to solve the above problem.

[0005] In order to achieve the above objectives, the technical solutions adopted in this application are:

[0006] A simple electronic parking actuator structure is mounted on a vehicle frame and includes a mounting plate, a brake, a push rod motor, a steel cable assembly, and a current sensor. The mounting plate is securely mounted on and fixedly connected to the vehicle frame. The brake includes a driving portion and a braking portion, wherein the driving portion is mounted on the top of the mounting plate and the braking portion is fixed to the bottom of the mounting plate.

[0007] The push rod motor is mounted on the vehicle frame and is located outside the mounting plate. The steel cable assembly includes a steel wire rope, one end of which is connected to the driving unit, and the other end of which is connected to a connecting plate provided on the output shaft of the push rod motor.

[0008] The current sensor is connected to the vehicle frame and electrically connected to the push rod motor. The current sensor is also electrically connected to a controller in the vehicle.

[0009] As a further improvement of the present invention, the steel cable assembly further includes a guide cylinder, which is arranged transversely and fixedly connected to the top of the mounting plate, and the second end of the steel wire rope passes through the interior of the guide cylinder.

[0010] As a further improvement of the present invention, the steel cable assembly also includes a limit column and a spring, the first end of the limit column is fixedly connected to the second end of the steel wire rope, the second end of the limit column is fixedly connected to the output shaft of the push rod motor, the limit column cannot enter the interior of the guide cylinder, the spring is mounted on the guide cylinder, and the spring keeps the steel wire rope taut.

[0011] As a further improvement of the present invention, the steel cable assembly further comprises a protective sleeve, which is sleeved on the outside of the steel wire rope and fixedly connected to an end of the guide cylinder away from the limiting column.

[0012] As a further improvement of the present invention, the protective cover is made of rubber material.

[0013] As a further improvement of the present invention, it further comprises a balancer, wherein a first end of the balancer is connected to the driving part, and a second end of the balancer is connected to the first end of the steel wire rope.

[0014] Compared with the prior art, the technical solution provided by this utility model has the following advantages and effects:

[0015] During operation, after the actuator motor is activated, its mechanical action pulls the wire rope, which then effectively transmits the tension to the brake. Upon receiving this tension, the brake immediately tightens the wheel brake shoe, effectively braking the wheel and ensuring vehicle safety. Furthermore, to monitor the actuator motor's operating status in real time, a current sensor accurately measures the motor's current. This critical data is transmitted in real time via the vehicle's controller to the driver interface, providing the driver with an intuitive understanding of the actuator motor's real-time operating status. This prevents potential cognitive errors during driving and improves driving accuracy and safety. Furthermore, we prioritize the maintenance and management of all system components. Regular inspection and maintenance of the actuator motor, wire rope, and brake ensures their stable and reliable operation. We promptly implement corrective measures for any issues or potential risks identified to eliminate safety hazards and ensure the normal operation of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1This is a schematic diagram of the top view of the structure of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0019] In the figure: 10, frame; 20, mounting plate; 30, brake; 31, drive unit; 40, push rod motor; 41, connecting plate; 50, cable assembly; 51, wire rope; 52, guide cylinder; 53, limit column; 54, spring; 60, current sensor; 70, balancer. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without making any creative efforts shall fall within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0023] In the description of this application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, if the terms "first", "second", etc. appear in the description of this application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not necessarily imply that a component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical" and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0025] It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0026] Example:

[0027] A simple electronic parking actuator structure is provided on a vehicle frame 10 and includes a mounting plate 20, a brake 30, a push rod motor 40, a cable assembly 50, and a current sensor 60. The mounting plate 20 is securely mounted on and fixedly connected to the vehicle frame 10. The brake 30 includes a drive unit 31 and a brake unit, wherein the drive unit 31 is mounted on the top of the mounting plate 20, and the brake unit is fixed to the bottom of the mounting plate 20.

[0028] The push rod motor 40 is mounted on the vehicle frame 10 and is located outside the mounting plate 20. The cable assembly 50 includes a steel wire rope 51. One end of the steel wire rope 51 is connected to the driving unit 31, and the other end of the steel wire rope 51 is connected to a connecting plate 41 provided on the output shaft of the push rod motor 40.

[0029] The current sensor 60 is connected to the vehicle frame 10 and electrically connected to the push rod motor 40 . The current sensor 60 is also electrically connected to a controller in the vehicle.

[0030] To explain, when the vehicle needs to park, the controller receives a parking signal and sends a command to the push rod motor 40. The push rod motor 40 then starts, pulling the wire rope 51 through its output shaft. The wire rope 51, under the action of the guide wheel, transmits the driving force to the drive unit 31 of the brake 30. Upon receiving this driving force, the drive unit 31 actuates the brake unit, tightly fitting the brake shoe to the wheel or brake disc, thus achieving the vehicle's parking function.

[0031] Specifically, during parking, the current sensor 60 detects changes in the current of the push rod motor 40 in real time and feeds this information back to the controller. Based on this information, the controller determines whether the parking actuator is operating normally and whether the motor's driving force needs to be adjusted. If an abnormality occurs, the controller immediately takes appropriate measures, such as stopping the motor or issuing an alarm, to ensure vehicle safety.

[0032] Combined with the accompanying drawings Figure 1-Figure 2 The steel cable assembly 50 also includes a guide cylinder 52, which is arranged horizontally and fixedly connected to the top of the mounting plate 20. The second end of the steel wire rope 51 passes through the interior of the guide cylinder 52. The steel cable assembly 50 also includes a limit column 53 and a spring 54. The first end of the limit column 53 is fixedly connected to the second end of the steel wire rope 51, and the second end of the limit column 53 is fixedly connected to the output shaft of the push rod motor 40. The limit column 53 cannot enter the interior of the guide cylinder 52. The spring 54 is sleeved on the guide cylinder 52, and the spring 54 keeps the steel wire rope 51 taut.

[0033] It should be noted that the horizontal arrangement of the guide cylinder 52 not only provides a stable path for the wire rope 51, but also ensures the stability of the overall structure through its fixed connection with the top of the mounting plate 20. The second end of the wire rope 51 cleverly passes through the interior of the guide cylinder 52, making the transmission of the entire wire rope assembly 50 smoother. The fixed connection between the limit column 53 and the second end of the wire rope 51, as well as its close fit with the output shaft of the push rod motor 40, ensure the accuracy and reliability of the wire rope assembly 50 during operation. It is particularly worth mentioning that the design of the limit column 53 cleverly avoids the possibility of it entering the interior of the guide cylinder 52, which further enhances the safety and stability of the wire rope assembly 50. The spring 54 is mounted on the guide cylinder 52, which not only provides continuous tension for the wire rope 51, ensuring its stability during operation, but also can absorb and alleviate external impact to a certain extent, thereby improving the service life of the wire rope assembly 50.

[0034] Combined with the accompanying drawings Figure 1-Figure 2The cable assembly 50 also includes a protective cover, which is positioned over the outer surface of the cable 51 and fixedly connected to the end of the guide cylinder 52 away from the stop post 53. The protective cover is made of a rubber material. Once positioned over the cable 51, the rubber cover effectively protects the cable 51 from corrosion, abrasion, and other adverse effects of the external environment, thereby increasing the service life and safety of the cable assembly 50. The rubber material has excellent elasticity and wear resistance, providing cushioning and shock absorption during the movement of the cable 51, reducing noise and vibration caused by friction and enhancing overall user comfort. Furthermore, one end of the protective cover is fixedly connected to the end of the guide cylinder 52 away from the stop post 53. This connection is not only secure and reliable, but also ensures that the protective cover will not fall off or shift during operation, thereby ensuring the stability and safety of the cable assembly 50. Furthermore, the protective cover is relatively easy to install and remove, making it convenient for users to perform routine maintenance and replacement.

[0035] It is worth noting that a balancer 70 is further included, a first end of the balancer 70 is connected to the driving part 31 , and a second end of the balancer 70 is connected to the first end of the steel wire rope 51 .

[0036] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A novel electronic parking actuator structure, arranged on a vehicle frame (10), characterized in that: The invention comprises a mounting plate (20), a brake (30), a push rod motor (40), a steel cable assembly (50) and a current sensor (60), wherein the mounting plate (20) is firmly arranged on the vehicle frame (10) and is fixedly connected to the vehicle frame (10), and the brake (30) comprises a driving part (31) and a braking part, wherein the driving part (31) is mounted on the top of the mounting plate (20) and the braking part is fixed on the bottom of the mounting plate (20); The push rod motor (40) is mounted on the vehicle frame (10) and is located outside the mounting plate (20). The steel cable assembly (50) includes a steel wire rope (51). One end of the steel wire rope (51) is connected to the driving portion (31), and the other end of the steel wire rope (51) is connected to a connecting plate (41) provided on the output shaft of the push rod motor (40). The current sensor (60) is connected to the vehicle frame (10) and electrically connected to the push rod motor (40). The current sensor (60) is also electrically connected to a controller in the vehicle.

2. The novel electronic parking actuator structure according to claim 1 is characterized in that: The steel cable assembly (50) further comprises a guide cylinder (52) which is arranged in a transverse direction and fixedly connected to the top of the mounting plate (20). The second end of the steel wire rope (51) passes through the interior of the guide cylinder (52).

3. The novel electronic parking actuator structure according to claim 2 is characterized in that: The steel cable assembly (50) further includes a limiting column (53) and a spring (54), wherein the first end of the limiting column (53) is fixedly connected to the second end of the steel wire rope (51), and the second end of the limiting column (53) is fixedly connected to the output shaft of the push rod motor (40), and the limiting column (53) cannot enter the interior of the guide cylinder (52). The spring (54) is sleeved on the guide cylinder (52), and the spring (54) keeps the steel wire rope (51) taut.

4. The novel electronic parking actuator structure according to claim 3 is characterized in that: The steel cable assembly (50) further comprises a protective sleeve, which is sleeved on the outside of the steel wire rope (51) and is fixedly connected to an end of the guide cylinder (52) away from the limiting column (53).

5. The novel electronic parking actuator structure according to claim 4 is characterized in that: The protective cover is made of rubber material.

6. The novel electronic parking actuator structure according to claim 1 is characterized in that: It also includes a balancer (70), wherein a first end of the balancer (70) is connected to the driving portion (31), and a second end of the balancer (70) is connected to the first end of the steel wire rope (51).

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