Female connector, connector assembly, electromechanical brake device and electric vehicle

Abstract

The utility model provides a female connector, a connector assembly, an electronic mechanical braking device and an electric vehicle. The female connector is used for being matched with the male connector to be connected with a brake motor and a motor controller of the electromechanical brake device, the female connector comprises a first female terminal and a second female terminal, the first female terminal is used for transmitting current to the brake motor to drive the brake motor, and the second female terminal is used for transmitting signals to the motor controller. The shell of the female connector comprises a first jack and a second jack, the opening directions of the first jack and the second jack are the same, the first jack is used for allowing the first male terminal to pass through along the first direction to be connected with the first female terminal to transmit current, and the second jack is used for allowing the second male terminal to pass through along the first direction to be connected with the second female terminal to transmit signals. The first female terminal used for transmitting current and the second female terminal used for transmitting signals are integrated in the female connector, the space occupied by the female connector can be reduced, and the layout of the electronic mechanical braking device at the wheel end can be optimized.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, and in particular to a female connector, connector assembly, electromechanical braking device, and electric vehicle. Background Technology

[0002] In electric vehicles, electromechanical braking systems utilize a combination of an electric motor and a mechanical transmission structure to drive the brakes. Compared to traditional electro-hydraulic braking systems, electromechanical braking systems offer advantages such as simpler structure, faster response, easier assembly and maintenance, and the elimination of the need for hydraulic lines. Employing electromechanical braking systems can improve vehicle safety, handling, and comfort.

[0003] Connectors are the key components in electromechanical braking systems used to transmit current and signals. Since electromechanical braking systems are mounted on the wheel end, and space is limited at the wheel end, an excessively large connector could negatively impact the proper installation of the electromechanical braking system. Utility Model Content

[0004] This application provides a female connector, connector assembly, electromechanical braking device, and electric vehicle that can reduce the space occupied by the wheel well.

[0005] In a first aspect, embodiments of this application provide a female connector. The female connector is used to mate with a male connector to connect a brake motor and a motor controller of an electromechanical braking device. The female connector includes a first female terminal and a second female terminal. The first female terminal is used to transmit current to the brake motor to drive the brake motor, and the second female terminal is used to transmit signals to the motor controller.

[0006] The female connector housing includes a first socket and a second socket, with the openings of the first socket and the second socket facing the same direction. The first socket is used for transmitting current through the first male terminal of the male connector along a first direction to connect to the first female terminal, and the second socket is used for transmitting signals through the second male terminal of the male connector along the first direction to connect to the second female terminal.

[0007] In this embodiment, the first and second female terminals of the female connector are used to transmit current and signals, respectively, to ensure that the electromechanical braking device effectively performs its braking function. The first female terminal helps ensure that the electromechanical braking device has the power to brake the wheels, while the second female terminal helps ensure that the electromechanical braking device can receive control signals.

[0008] In this embodiment, the first socket of the female connector is used to connect the first female terminal and the first male terminal, and the second socket of the female connector is used to connect the second female terminal and the second male terminal. Both the first and second sockets are integrated into the housing of the female connector, which helps to reduce the wheel space occupied by the female connector. If two separate connectors are used to transmit current and signals respectively, the two separate connectors themselves need to occupy space. In order to avoid interference between the two connectors or interference between the two connectors and other devices on the wheel, space also needs to be reserved for avoidance, which is not conducive to the miniaturization design of the female connector.

[0009] In this embodiment, the openings of the first and second sockets face the same direction, ensuring that both the first and second male terminals are inserted and removed in the same direction. This simplifies the connection operations between the first female terminal and the first male terminal, as well as between the second female terminal and the second male terminal. The first and second sockets are distributed on the same surface of the female connector's housing, arranged compactly, which optimizes the layout of the first and second female terminals within the female connector's housing.

[0010] In one embodiment, the female connector includes a plurality of first sockets and a plurality of second sockets. The plurality of first sockets are arranged adjacent to each other, and the plurality of second sockets are arranged adjacent to each other. The distance between the center of any one first socket and the center of any one second socket is greater than at least one of the distance between the centers of any two adjacent first sockets or the distance between the centers of any two adjacent second sockets.

[0011] In this embodiment, each first socket of the female connector is used to connect a first female terminal to a first male terminal, and each second socket of the female connector is used to connect a second female terminal to a second female terminal. The number of first sockets is equal to the number of first female terminals and the number of first male terminals, and the number of second sockets is equal to the number of second female terminals and the number of second male terminals.

[0012] In this embodiment, since multiple first sockets and multiple second sockets are integrated into the housing of the female connector, and the openings of the first and second sockets face the same direction, if the first and second sockets are arranged haphazardly, it may lead to incorrect connection between the male and female terminals, and also easily cause mutual interference between current transmission and signal transmission. In this embodiment, multiple first sockets are arranged adjacent to each other, and multiple second sockets are arranged adjacent to each other, concentrating the multiple first female terminals used for current transmission and the multiple second female terminals used for signal transmission in different areas, which helps to reduce the risk of incorrect connection between the male and female terminals. In this embodiment, the distance between the center of any first socket and the center of any second socket is greater than at least one of the distance between the centers of two adjacent first sockets or the distance between the centers of two adjacent second sockets. By increasing the distance between the first and second sockets, the electromagnetic interference generated between the first and second female terminals is reduced.

[0013] In one embodiment, a first socket is opposite to a first female terminal along a first direction, and a second female terminal is opposite to a second socket along the first direction, wherein the arrangement direction of the first female terminal and the second female terminal is perpendicular to the first direction.

[0014] In this embodiment, the arrangement direction of the first socket and the first female terminal is parallel to the insertion direction of the first male terminal, and the arrangement direction of the second socket and the second female terminal is parallel to the insertion direction of the second male terminal. This helps to reduce the connection difficulty between the first female terminal and the first male terminal, as well as between the second female terminal and the second male terminal. The arrangement direction of the first socket and the first female terminal is also parallel to the arrangement direction of the second socket and the second female terminal, facilitating the simultaneous installation of the first female terminal and the second female terminal. The arrangement direction of the first female terminal and the second female terminal is perpendicular to the first direction, which can reduce the length of the female connector in the first direction, allowing the first female terminal and the second female terminal to share the space of the female connector in the arrangement direction of the first female terminal and the second female terminal.

[0015] In one embodiment, the housing of the female connector includes a first protective shell and a first insulating body, the first protective shell accommodating the first insulating body. The opening of the first protective shell is oriented parallel to the opening orientation of the first and second sockets, which are distributed on the surfaces of the first insulating body opposite to the first and second female terminals. The distance between the opening of the first socket and the first protective shell along a first direction is not equal to the distance between the opening of the second socket and the first protective shell.

[0016] In this embodiment, the first and second sockets are distributed on the first insulating body, which facilitates the insulating spacing between the first male terminal inserted into the first socket and the second male terminal inserted into the second socket. The first protective shell protects the first insulating body, the first female terminal, and the second female terminal. The opening of the first protective shell faces a direction parallel to the opening direction of the first and second sockets, facilitating the movement of the first male terminal and the second male terminal relative to the first and second sockets along a first direction, respectively.

[0017] In this embodiment, the first male terminal and the second male terminal move relative to the first insulating body in the same direction. The first insulating body integrates the first socket and the second socket, and there are a large number of sockets. In this embodiment, the distances between the first socket, the second socket and the opening of the first protective shell are not equal, so that the contact and conduction between the first male terminal and the second male terminal and the female connector have a sequence. This helps to reduce the insertion and extraction force of the first male terminal and the second male terminal with the female connector and improves operability.

[0018] In one embodiment, the inner diameter of the first socket is larger than the inner diameter of the second socket, and the first socket protrudes from the opening of the first protective shell relative to the second socket along a first direction.

[0019] In this embodiment, the relationship between the inner diameters of the first and second sockets reflects the relative specifications and structural strengths of the first and second male terminals, indicating that the structural strength of the first male terminal is superior to that of the second male terminal. In this embodiment, the second socket is positioned away from the opening of the first protective shell along the first direction, causing the contact between the second male terminal and the second female terminal to occur after the contact between the first male terminal and the first female terminal. During the mating process of the female and male connectors, the friction state changes from dynamic friction to static friction, with a relatively large frictional force in the initial stage of mating. In this embodiment, the first male terminal and the first female terminal contact first, meaning that the male and female terminals with relatively higher structural strength initially bear a larger frictional force. This is beneficial for correcting and guiding the subsequent contact between the second male terminal and the second female terminal, and also makes the female connector more adaptable to the vibration environment of the wheel side. If the second male terminal and the second female terminal contact first, due to the relatively poor structural strength of the second male terminal, it may not only lead to poor contact with the second female terminal but may also interfere with the connection process between the first male terminal and the first female terminal.

[0020] In one embodiment, the first insulating body includes a first mounting groove and a second mounting groove. One end of a first female terminal is used to pass through the opening of the first mounting groove to the bottom of the first mounting groove, and the other end of the first female terminal is used to connect a power cable. One end of a second female terminal is used to pass through the opening of the second mounting groove to the bottom of the second mounting groove, and the other end of the second female terminal is used to connect a signal cable. A first socket penetrates the bottom of the first mounting groove, and a second socket penetrates the bottom of the second mounting groove. The outer diameter of the signal cable is smaller than the outer diameter of the power cable, and the depth of the second mounting groove along a first direction is smaller than the depth of the first mounting groove.

[0021] In this embodiment, the first mounting groove and the second mounting groove of the first insulating body are used to accommodate one end of the first female terminal and one end of the second female terminal, respectively. The other end of the first female terminal and the other end of the second female terminal are used to connect a power cable and a signal cable, respectively. The power cable moves towards the bottom of the first mounting groove following one end of the first female terminal, and the signal cable moves towards the bottom of the second mounting groove following the other end of the second female terminal. The signal cable has relatively low structural strength and is prone to deformation. The depth of the second mounting groove along the first direction is less than the depth of the first mounting groove, which helps to shorten the movement stroke of the second female terminal and the signal cable, avoids changes in the insertion angle of the second female terminal due to deformation of the signal cable, and improves the connection stability between the second female terminal and the second mounting groove.

[0022] In one embodiment, a first shielding shell for the first female terminal is disposed within a first mounting groove, and a second shielding shell for the second female terminal is disposed within a second mounting groove. The first shielding shell is used to accommodate the first male terminal, and the second shielding shell is used to accommodate the second male terminal.

[0023] The female connector further includes terminal locking elements, which are distributed along a first direction on the side of the opening of the first mounting groove opposite to the first shielding shell and on the side of the opening of the second mounting groove opposite to the second shielding shell. The terminal locking elements include a first notch and a second notch.

[0024] When the terminal locking member is in the first locked position relative to the first protective shell, the first notch and the opening of the first mounting groove are opposite each other along the first direction, and the first notch connects to the first mounting groove. The second notch and the opening of the second mounting groove are opposite each other along the first direction, and the second notch connects to the second mounting groove.

[0025] When the terminal locking member is in the second locking position relative to the first protective shell, the projection of the terminal locking member along the first direction covers part of the projection of the first shielding shell and part of the projection of the second shielding shell.

[0026] In this embodiment, the first shielding shell shields the first male terminal and the first female terminal from electromagnetic interference, and the second shielding shell shields the second male terminal and the second female terminal from electromagnetic interference.

[0027] In this embodiment, the female connector is used in the electromechanical braking device on the wheel side. The female connector is prone to detachment due to the vibration of the components of the electromechanical braking device. Under the action of external vibration, the first female terminal of the female connector may move away from the bottom of the first mounting groove, or even come out of the opening of the first mounting groove, resulting in the failure of the connection between the first female terminal and the first male terminal.

[0028] To reduce the negative impact of vibration on the female connector and improve the connection stability between the female connector and the first and second male terminals, embodiments of this application employ terminal locking components to lock the first and second female terminals. Specifically, the terminal locking components are distributed along a first direction at the openings of the first and second mounting grooves on the side opposite to the first and second shielding shells. The terminal locking components have a first locking position and a second locking position relative to the first protective shell, meaning that the terminal locking components can be fixed to the first and second locking positions of the first protective shell respectively, and the terminal locking components can be interchanged between the first and second locking positions through manual operation. Integrating the structure for locking the first and second female terminals into the terminal locking components helps reduce the number of parts in the female connector.

[0029] In this embodiment, during the installation of the first female terminal and the second female terminal, the terminal locking member is in a first locking position, with the first notch and the second notch of the terminal locking member respectively opposite to and connected to the openings of the first and second mounting grooves. In this case, the first shielding shell can sequentially pass through the first notch of the terminal locking member and the opening of the first mounting groove, and the second shielding shell can sequentially pass through the second notch of the terminal locking member and the opening of the second mounting groove. The terminal locking member can play a positioning role for the first female terminal and the second female terminal, making the installation position of the first female terminal and the second female terminal relative to the first insulating body more accurate.

[0030] In this embodiment, after the first female terminal and the second female terminal are installed, the terminal locking member changes from the first locking position to the second locking position. The position of the first notch relative to the opening of the first mounting groove changes, and the position of the second notch relative to the opening of the second mounting groove changes. The projection of the terminal locking member along the first direction covers a portion of the projection of the first shielding shell and a portion of the projection of the second shielding shell. In this case, the terminal locking member can prevent one end of the first female terminal from dislodging outward toward the outside of the first mounting groove, and prevent one end of the second female terminal from dislodging outward toward the outside of the second mounting groove, thereby enhancing the connection stability between the female connector and the first male terminal and the second male terminal.

[0031] In one embodiment, the inner diameter of the first notch is larger than the inner diameter of the second notch.

[0032] In this embodiment, the female connector integrates a first female terminal and a second female terminal, which share a terminal locking member. To balance the anti-detachment requirements of the first and second female terminals, the inner diameters of the first and second notches of the terminal locking member need to be adjusted according to the specifications of the first and second female terminals. In this embodiment, the inner diameter of the first notch is adjusted to be relatively large, which helps to avoid obstructing the installation of the first female terminal when the terminal locking member is in the first locking position. In this embodiment, the inner diameter of the second notch is adjusted to be relatively small, which helps to prevent the second female terminal from still being able to detach from the second mounting slot when the terminal locking member is in the second locking position.

[0033] In one embodiment, a first sealing ring is positioned opposite to a first female terminal along a first direction, and a second sealing ring is positioned opposite to a second female terminal along the first direction. The first sealing ring is distributed between the first protective shell and the power cable, and the second sealing ring is distributed between the first protective shell and the signal cable. The center-to-center distance between any two adjacent first sealing rings is greater than or equal to 3 mm, and the center-to-center distance between any two adjacent second sealing rings is greater than or equal to 2 mm.

[0034] In this embodiment, the first and second sealing rings effectively prevent moisture and dust from entering the female connector, protecting the first and second female terminals from damage. Compared to all first and second female terminals sharing a single seal, this embodiment uses single-wire seals for both terminals, improving sealing performance and ease of installation. Since the first and second female terminals have different functions and specifications, and the signal and power cables have different inner diameters and insertion strokes, sharing a single seal would require comprehensive consideration of the seal's structural design. The installation process would also need to simultaneously meet the sealing requirements of multiple female terminals and cables, hindering simplified installation and reduced design and manufacturing costs.

[0035] In this embodiment, the first sealing ring and the second sealing ring are respectively opposite to the first socket and the second socket. To avoid interference between the first female terminals and between the second female terminals, this embodiment adjusts the range of the center distance between any two adjacent first sockets and the center distance between any two adjacent second sockets to provide installation space for single-line sealing of the first and second female terminals.

[0036] Secondly, embodiments of this application provide a connector assembly. The connector assembly includes a male connector and a female connector as described in any embodiment of the first aspect, the male connector being used for mating with the female connector. The housing of the male connector includes a second protective shell for accommodating a first male terminal and a second male terminal. The outer peripheral surface of the second protective shell includes a positioning protrusion, and the second male terminal is arranged between the positioning protrusion and the first male terminal along a second direction. The positioning protrusion is used to embed into a positioning groove in the housing of the female connector, the second direction being perpendicular to the first direction.

[0037] In this application embodiment, the female connector described in any embodiment of the first aspect is applied to the connector assembly of this application embodiment. Since the female connector integrates a first female terminal and a second female terminal with different functions, the space occupied by the connector assembly can be effectively reduced. During the mating process of the female connector and the male connector, in order to avoid assembly errors, the positions of the positioning protrusion and the positioning groove can be used to distinguish the first female terminal and the second female terminal. Specifically, the first male terminal, the second male terminal and the positioning protrusion are arranged sequentially along the second direction, and correspondingly, the first female terminal, the second female terminal and the positioning groove are arranged sequentially along the second direction. Inserting the positioning protrusion into the positioning groove can prevent the first male terminal or the second male terminal from being inserted incorrectly.

[0038] Thirdly, embodiments of this application provide an electromechanical braking device. The electromechanical braking device includes a brake motor, a motor controller, and a connector assembly as described in the second aspect. A third male terminal of the male connector is used to connect a first male terminal and the motor controller, and a fourth male terminal of the male connector is used to connect a second male terminal and the motor controller. The housing of the male connector includes a mounting base for fixing to the housing of the motor controller. The mounting base and the second protective housing are arranged along a third direction, and the female connector and the motor controller are arranged along a third direction. The third and fourth male terminals protrude from the surface of the mounting base facing the motor controller in a first direction, and the third direction is perpendicular to the first and second directions.

[0039] In this embodiment, the connector assembly described in the second aspect is applied to the electromechanical braking device of this embodiment. Since the connector assembly occupies less space, it is beneficial to optimize the layout of the electromechanical braking device on the wheel side. The female connector and the motor controller are arranged along a third direction, which means that the female connector utilizes the space on one side of the motor controller along the third direction. Compared to arranging the female connector and the motor controller along a first direction, this embodiment avoids extending the length of the electromechanical braking device in the first direction.

[0040] In this embodiment, the second protective shells of the female connector and the male connector are fixed along a first direction, and the fixing seat of the male connector is arranged along a third direction, which is perpendicular to the first direction, so that the female connector and the male connector form a U-shaped connector assembly. If the fixing seat and the second protective shell are arranged along the first direction, the female connector and the male connector form a straight connector, which is not conducive to laying power cables and signal cables in the narrow space of the wheel rim. In this embodiment, the U-shaped connector assembly can change the routing direction of the power cables and signal cables, making it easier to reduce the wheel rim space occupied by the power cables and signal cables by changing the wiring method.

[0041] In one embodiment, the electromechanical braking device further includes a speed reducer, which is drively connected to the motor shaft of the brake motor. The motor controller, the speed reducer, and the brake motor are arranged along a first direction, and a male connector along the first direction is arranged on the side of the motor controller facing the speed reducer.

[0042] In this embodiment, the male connector utilizes the space on the side of the motor controller facing the reducer, reducing the overall size of the electromechanical braking device and making it suitable for use in confined wheel-side environments. Because the male and female connectors form a U-shaped connector assembly, the U-shape allows the power and signal cables to exit away from the reducer, preventing interference between the power and signal cables and the reducer / brake motor. This also helps reduce the negative impact of cable vibration, ensuring the normal operation of the electromechanical braking device.

[0043] Fourthly, embodiments of this application provide an electric vehicle. The electric vehicle includes a power battery, a pedal device, and an electromechanical braking device as described in any embodiment of the third aspect. The power battery is used to transmit current to a brake motor through a connector assembly, the pedal device is used to transmit signals to a motor controller through the connector assembly, and the electromechanical braking device is used to brake the wheels of the electric vehicle.

[0044] In the embodiments of this application, the electromechanical braking device described in any of the third aspects is applied to the electric vehicle of the present application embodiment. The connector assembly and the electromechanical braking device are small in size, which facilitates the optimization of the space layout of the electric vehicle.

[0045] In one embodiment, the female connector housing includes four first sockets and nine second sockets. The connector assembly connects between the motor controller and the central control box of the electric vehicle, whereby the electromechanical braking device receives signals output from the pedal mechanism via the central control box.

[0046] In this embodiment, the connector assembly includes four first female terminals and four first male terminals, as well as nine second female terminals and nine second male terminals, suitable for scenarios where a central control box is used to uniformly control the electromechanical braking devices of multiple wheels. The control signal output by the pedal device is transmitted to the electromechanical braking devices of the four wheels through the central control box.

[0047] In one embodiment, the female connector housing includes four first sockets and sixteen second sockets. The connector assembly connects the motor controller and the pedal assembly, and the electromechanical braking device receives signals output from the pedal assembly.

[0048] In this embodiment, due to the large number of second sockets, the connector assembly and pedal device can directly transmit signals. That is, the control signal output by the pedal device can be directly transmitted to the motor controller of the electromechanical braking device through the connector assembly, which helps reduce the number of domain control modules in the central control box. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0050] Figure 1 This is a schematic diagram of an electric vehicle provided in an embodiment of this application;

[0051] Figure 2 This is a schematic diagram of the wheel location provided in an embodiment of this application;

[0052] Figure 3 This is a partial schematic diagram of an electric vehicle provided in an embodiment of this application;

[0053] Figure 4 This is a partial schematic diagram of an electric vehicle provided in an embodiment of this application;

[0054] Figure 5 This is a schematic diagram of the electromechanical braking device provided in the embodiments of this application;

[0055] Figure 6 This is a schematic diagram of the brake and brake disc provided in the embodiments of this application;

[0056] Figure 7 This is an exploded view of the connector assembly provided in the embodiments of this application;

[0057] Figure 8 This is a cross-sectional view of the connector assembly provided in an embodiment of this application;

[0058] Figure 9 This is a cross-sectional view of the connector assembly provided in an embodiment of this application;

[0059] Figure 10 This is an exploded view of the female connector provided in the embodiments of this application;

[0060] Figure 11 This is an exploded view of the female connector provided in the embodiments of this application;

[0061] Figure 12 This is an exploded view of the female connector provided in the embodiments of this application;

[0062] Figure 13 This is an exploded view of the connector assembly provided in the embodiments of this application;

[0063] Figure 14 This is an exploded view of the connector assembly provided in the embodiments of this application;

[0064] Figure 15 This is an exploded view of the female connector provided in the embodiments of this application;

[0065] Figure 16 This is a cross-sectional view of the female connector provided in an embodiment of this application;

[0066] Figure 17 This is a cross-sectional view of the female connector provided in an embodiment of this application;

[0067] Figure 18 This is an exploded view of the connector assembly provided in the embodiments of this application;

[0068] Figure 19 This is a schematic diagram of the connector assembly provided in an embodiment of this application;

[0069] Figure 20 This is a schematic diagram of the connector assembly provided in an embodiment of this application. Detailed Implementation

[0070] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0071] For ease of understanding, the relevant technical terms involved in the embodiments of this application will be explained and described below.

[0072] Perpendicularity: The perpendicularity defined in this application is not limited to an absolutely perpendicular intersection. Cases where the intersection is not absolutely perpendicular due to factors such as assembly tolerances, design tolerances, and structural flatness are allowed. Small angular errors are permissible, for example, within the range of 80 to 100 degrees, which can be understood as a perpendicular relationship.

[0073] Parallelism: The parallelism defined in the embodiments of this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, allowing for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness.

[0074] Currently, connectors used in electromechanical braking devices occupy a large amount of wheel end space. This application provides a female connector for mating with a male connector to connect the brake motor and motor controller of the electromechanical braking device. The female connector includes a first female terminal and a second female terminal. The first female terminal is used to transmit current to the brake motor to drive it, and the second female terminal is used to transmit signals to the motor controller.

[0075] The female connector housing includes a first socket and a second socket, with the openings of the first socket and the second socket facing the same direction. The first socket is used for transmitting current by allowing the first male terminal to pass through the first female terminal in a first direction, and the second socket is used for transmitting signals by allowing the second male terminal to pass through the second female terminal in the first direction.

[0076] This application integrates a first female terminal for transmitting current and a second female terminal for transmitting signals into a female connector, which reduces the space occupied by the female connector and facilitates optimization of the layout of the electromechanical braking device at the wheel end. The female connector provided in this application can be applied to connector assemblies and electromechanical braking devices, and electromechanical braking devices including the female connector of this application can be applied to electric vehicles.

[0077] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the electric vehicle 1 provided in an embodiment of this application. Figure 2 This is a schematic diagram of the wheel 30 provided in an embodiment of this application. It should be noted that... Figure 1 and Figure 2 The electromechanical braking device 10 is shown schematically on the wheel side and does not represent the specific location, structure and size of the electromechanical braking device 10.

[0078] In one embodiment, the electric vehicle 1 includes an electromechanical braking device 10, a frame 20, and wheels 30. The electromechanical braking device 10 is fixed to the frame 20 and positioned corresponding to the wheels 30.

[0079] In this embodiment, electric vehicle 1 refers to a wheeled device driven or towed by a power unit. The electromechanical braking device 10 is used to brake the wheels 30 of electric vehicle 1. Exemplarily, the electromechanical braking device 10 can decelerate or even stop a moving vehicle, maintain a stable downhill speed, and keep a stopped vehicle stationary. The frame 20 is the structural skeleton of electric vehicle 1, capable of bearing the loads from the internal and external environment of electric vehicle 1.

[0080] In one embodiment, the electric vehicle 1 further includes a power battery 40 for supplying power to the electromechanical braking device 10 via a connector assembly. The power battery 40 may also be referred to as a battery pack.

[0081] Please refer to the following: Figures 2 to 4 , Figure 3 This is a partial schematic diagram of the electric vehicle 1 provided in an embodiment of this application. Figure 4 This is a partial schematic diagram of an electric vehicle 1 provided in an embodiment of this application.

[0082] In one embodiment, the electric vehicle 1 further includes a pedal device 50, which transmits signals to the electromechanical braking device 10 via a connector assembly. In another embodiment, the electric vehicle 1 further includes a brake disc 60, which is coaxially fixed to the wheel 30 and can rotate synchronously with the wheel 30. After receiving the signal output from the pedal device 50, the electromechanical braking device 10, in conjunction with the brake disc 60, applies braking force to the wheel 30.

[0083] It should be noted that, in Figure 2 In the illustrated embodiment, only one wheel 30 and one electromechanical braking device 10 are used as examples for illustrative purposes. In practical applications, some wheels 30 or each wheel 30 in the electric vehicle 1 can be equipped with an electromechanical braking device 10.

[0084] Please see Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the electromechanical braking device 10 provided in an embodiment of this application. Figure 6 This is a schematic diagram of the brake 15 and brake disc 60 provided in an embodiment of this application.

[0085] In one embodiment, the electromechanical braking device 10 includes a brake motor 12, a motor controller 13, and a reducer 14. The motor controller 13 is used to control the brake motor 12, and the input shaft 1401 of the reducer 14 is used to drive the motor shaft 1201 of the brake motor 12 and the output shaft 1402 of the reducer 14.

[0086] In one embodiment, the power battery 40 is used to transmit direct current (DC) power to the motor controller 13. The motor controller 13 includes a circuit board 1301 for mounting an inverter circuit, which converts the DC power into alternating current (AC) power and transmits it to the brake motor 12. The brake motor 12 converts electrical energy into mechanical energy to drive the input shaft 1401 of the reducer 14 to rotate.

[0087] In one embodiment, the electromechanical braking device 10 further includes a brake 15, which includes a transmission assembly 1501 and a friction pad 1502. The transmission assembly 1501 is used to drive the output shaft 1402 of the reducer 14 and the friction pad 1502. The transmission assembly 1501 is used to convert the rotational motion of the output shaft 1402 into a displacement motion along the axial direction of the brake disc 60, so as to drive the friction pad 1502 to move along the axial direction of the brake disc 60. The friction pad 1502 is used to provide braking force to the brake disc 60 to achieve braking of the wheel 30.

[0088] In one embodiment, the brake 15 includes two friction pads 1502 arranged on both sides of the brake disc 60 along its axial direction. The brake motor 12 drives the two friction pads 1502 to slide towards each other along the axial direction of the brake disc 60 until they contact the brake disc 60, generating friction to brake the brake disc 60. The brake motor 12 also drives the two friction pads 1502 to slide away from the brake disc 60 along its axial direction to release the brake on the brake disc 60.

[0089] It should be noted that, in Figure 5 The embodiments shown are merely illustrative examples of one possible arrangement of the components within the electromechanical braking device 10 of this application, and are not limited to this arrangement. Furthermore, Figure 5 The positional relationship between the connector assembly 11 and the electromechanical braking device 10 is shown only schematically and does not represent their specific structure and dimensions.

[0090] Please continue reading. Figure 5 In one embodiment, the connector assembly 11 includes a mating female connector 100 and a male connector 200, wherein the male connector 200 is fixed to the motor controller 13 of the electromechanical braking device 10. The male terminal of the male connector 200 is for insertion into one end of the female terminal of the female connector 100, and the other end of the female terminal is for connecting a power cable and a signal cable. The power cable is used to transmit current, and the signal cable is used to transmit signals.

[0091] In electric vehicles, electromechanical braking devices are located at the wheel wells, where space is limited. If the connector assemblies used for transmitting current and signals occupy too much space, it will affect the normal installation of the electromechanical braking devices at the wheel wells and interfere with the cable routing.

[0092] The embodiments of this application improve the connector assembly, thereby reducing the space occupied by the connector assembly and facilitating the miniaturization design of the electromechanical braking device.

[0093] The female connector in the connector assembly provided in the embodiments of this application is described in detail below.

[0094] Please see Figures 7 to 9 as well as Figure 14 , Figure 7 This is an exploded view of the connector assembly 11 provided in an embodiment of this application. Figure 8 This is a cross-sectional view of the connector assembly 11 provided in an embodiment of this application. Figure 9 This is a cross-sectional view of the connector assembly 11 provided in an embodiment of this application. Figure 14 An exploded view of the connector assembly 11 provided in an embodiment of this application.

[0095] In one embodiment, the female connector 100 is used to mate with the male connector 200 to connect the brake motor and the motor controller of the electromechanical braking device 10. The female connector 100 includes a first female terminal 110 and a second female terminal 120. The first female terminal 110 is used to transmit current to the brake motor to drive the brake motor, and the second female terminal 120 is used to transmit signals to the motor controller.

[0096] The female connector 100 housing includes a first socket 131 and a second socket 132, with the openings of the first socket 131 and the second socket 132 facing the same direction. The first socket 131 is used for transmitting current through the first male terminal 210 of the male connector 200 along a first direction A, connecting to the first female terminal 110. The second socket 132 is used for transmitting signals through the second male terminal 220 of the male connector 200 along the first direction A, connecting to the second female terminal 120.

[0097] In this embodiment, the first female terminal 110 and the second female terminal 120 of the female connector 100 are used to transmit current and signals, respectively, to ensure that the electromechanical braking device 10 effectively performs its braking function. The first female terminal 110 helps ensure that the electromechanical braking device 10 has the power to brake the wheel 30, and the second female terminal 120 helps ensure that the electromechanical braking device 10 can receive control signals.

[0098] In one embodiment, for example, the brake motor includes a stator, windings, a rotor, and a motor shaft. A first female terminal is used to realize the transfer of electrical energy between the power battery and the windings. The alternating magnetic flux generated when AC current is applied to the windings interacts with the permanent magnet flux generated by the rotor, causing the rotor to rotate relative to the stator. The rotor is fixedly connected to the motor shaft, allowing the motor shaft to rotate with the rotor. The stator is rotatably connected to the motor shaft, enabling the motor shaft to rotate relative to the stator, converting electrical energy into mechanical energy. In another embodiment, for example, the circuit board of the motor controller is used to fix the control circuit, and a second female terminal is used to realize signal transmission between the pedal device and the control circuit. The control circuit is connected to the brake motor, facilitating the adjustment of the brake motor's power output state according to the signal, thereby meeting the user's different braking needs for the electric vehicle.

[0099] In this embodiment, the first socket 131 of the female connector 100 is used to connect the first female terminal 110 and the first male terminal 210, and the second socket 132 of the female connector 100 is used to connect the second female terminal 120 and the second male terminal 220. Both the first socket 131 and the second socket 132 are integrated into the housing of the female connector 100, which helps to reduce the wheel-side space occupied by the female connector 100 and the connector assembly 11, and reduces the number of insertions and removals. If two separate connectors are used to transmit current and signals respectively, the two separate connectors themselves need to occupy space. To avoid interference between the two connectors or interference between the two connectors and other devices on the wheel-side, clearance space also needs to be provided, which is not conducive to the miniaturization design of the female connector 100, the connector assembly 11, and the electromechanical braking device 10.

[0100] In this embodiment, the openings of the first socket 131 and the second socket 132 face the same direction, ensuring that the first male terminal 210 and the second male terminal 220 are inserted and removed in the same direction. This simplifies the connection operations between the first female terminal 110 and the first male terminal 210, as well as between the second female terminal 120 and the second male terminal 220. The first socket 131 and the second socket 132 are distributed on the same surface of the female connector 100's housing, arranged compactly, which optimizes the layout of the first female terminal 110 and the second female terminal 120 within the female connector 100's housing.

[0101] Please see Figure 10 and Figure 15 , Figure 10 This is an exploded view of the female connector 100 provided in an embodiment of this application. Figure 15 An exploded view of the female connector 100 provided in an embodiment of this application.

[0102] In one embodiment, the female connector 100 includes a plurality of first sockets 131 and a plurality of second sockets 132. The plurality of first sockets 131 are arranged adjacent to each other, and the plurality of second sockets 132 are arranged adjacent to each other. The distance between the center of any first socket 131 and the center of any second socket 132 is greater than at least one of the distance between the centers of any two adjacent first sockets 131 or the distance between the centers of any two adjacent second sockets 132.

[0103] In this embodiment of the application, for ease of description, the distance between the centers of every two adjacent first sockets 131 is denoted as L1, and the distance between the centers of every two adjacent second sockets 132 is denoted as L2.

[0104] In this embodiment, each first socket 131 of the female connector 100 is used to connect a first female terminal 110 to a first male terminal 210, and each second socket 132 of the female connector 100 is used to connect a second female terminal 120 to a second female terminal 120. It is understood that the number of first sockets 131 is equal to the number of first female terminals 110 and the number of first male terminals 210, and the number of second sockets 132 is equal to the number of second female terminals 120 and the number of second male terminals 220.

[0105] In this embodiment, since multiple first sockets 131 and multiple second sockets 132 are integrated into the housing of the female connector 100, and the openings of the first sockets 131 and the second sockets 132 face the same direction, if the arrangement of the first sockets 131 and the second sockets 132 is disordered, it may lead to incorrect connection of the male and female terminals, and may also easily cause mutual interference between current transmission and signal transmission. In this embodiment, multiple first sockets 131 are arranged adjacent to each other, and multiple second sockets 132 are arranged adjacent to each other, concentrating the multiple first female terminals 110 used for current transmission and the multiple second female terminals 120 used for signal transmission in different areas, which helps to reduce the risk of incorrect connection of the male and female terminals. In this embodiment, the distance between the center of any first socket 131 and the center of any second socket 132 is greater than at least one of L1 or L2. By increasing the distance between the first sockets 131 and the second sockets 132, the electromagnetic interference generated between the first female terminals 110 and the second female terminals 120 is reduced.

[0106] In one embodiment, the number of first sockets 131 is less than the number of second sockets 132. The distance between the centers of any two adjacent first sockets 131 is greater than the distance between the centers of any two adjacent second sockets 132. In this embodiment, the number of second sockets 132 is greater than the number of first sockets 131, and L2 is less than L1, which reduces the space occupied by the multiple second sockets 132. The first sockets 131 are used to cooperate with the first female terminal 110 and the first male terminal 210 to achieve current transmission, and the second sockets 132 are used to cooperate with the second female terminal 120 and the second male terminal 220 to achieve signal transmission. Compared with the second female terminal 120 and the second male terminal 220, since the first female terminal 110 and the first male terminal 210 usually need to carry relatively high current and voltage, L1 is greater than L2, that is, the distance between the centers of any two adjacent first sockets 131 is relatively large, which is beneficial to improving the safety performance of the female connector 100 and also facilitates heat dissipation of the first female terminal 110 and the first male terminal 210. In this embodiment, L1 is greater than L2, which is beneficial to take into account the different needs of the first female terminal 110 and the second female terminal 120, and facilitates the integration of the first socket 131 and the second socket 132 into the housing of the female connector 100.

[0107] Please continue reading. Figures 8 to 10 In one embodiment, the first socket 131 is opposite to the first female terminal 110 along the first direction A, and the second female terminal 120 is opposite to the second socket 132 along the first direction A. The arrangement direction of the first female terminal 110 and the second female terminal 120 is perpendicular to the first direction A.

[0108] In this embodiment, the arrangement direction of the first socket 131 and the first female terminal 110 is parallel to the insertion direction of the first male terminal 210, and the arrangement direction of the second socket 132 and the second female terminal 120 is parallel to the insertion direction of the second male terminal 220. This helps to reduce the connection difficulty between the first female terminal 110 and the first male terminal 210, as well as between the second female terminal 120 and the second male terminal 220. The arrangement direction of the first socket 131 and the first female terminal 110 is also parallel to the arrangement direction of the second socket 132 and the second female terminal 120, facilitating the simultaneous installation of the first female terminal 110 and the second female terminal 120. The arrangement direction of the first female terminal 110 and the second female terminal 120 is perpendicular to the first direction A, which can reduce the length of the female connector 100 in the first direction A. The first female terminal 110 and the second female terminal 120 can share the space of the female connector 100 in the arrangement direction of the first female terminal 110 and the second female terminal 120.

[0109] Please continue reading. Figure 7 , Figure 10 , Figure 14 and Figure 15In one embodiment, the housing of the female connector 100 includes a first protective shell 140 and a first insulating body 130, the first protective shell 140 being used to accommodate the first insulating body 130. The opening of the first protective shell 140 is oriented parallel to the opening orientation of the first socket 131 and the second socket 132, the first socket 131 and the second socket 132 being distributed on the surface of the first insulating body 130 opposite to the first female terminal 110 and the second female terminal 120. The distance between the opening of the first socket 131 and the first protective shell 140 along a first direction A is not equal to the distance between the opening of the second socket 132 and the first protective shell 140.

[0110] In this embodiment, the first socket 131 and the second socket 132 are distributed on the first insulating body 130, which facilitates the insulating spacing between the first male terminal 210 inserted into the first socket 131 and the second male terminal 220 inserted into the second socket 132. The first protective shell 140 is used to protect the first insulating body 130, the first female terminal 110, and the second female terminal 120. The opening of the first protective shell 140 faces a direction parallel to the opening direction of the first socket 131 and the second socket 132, which facilitates the movement of the first male terminal 210 and the second male terminal 220 relative to the first socket 131 and the second socket 132 along the first direction A, respectively.

[0111] In this embodiment, the first male terminal 210 and the second male terminal 220 move relative to the first insulating body 130 in the same direction. The first insulating body 130 integrates the first socket 131 and the second socket 132, and has a large number of sockets. In this embodiment, the distances between the first socket 131, the second socket 132 and the opening of the first protective shell 140 are not equal, so that the contact and conduction of the first male terminal 210 and the second male terminal 220 with the female connector 100 have a sequential order. This helps to reduce the insertion and extraction force of the first male terminal 210 and the second male terminal 220 with the female connector 100 and improves operability.

[0112] In one embodiment, for example, the first female terminal 110 includes two first conductive sheets 111, which are adjacent to the first socket 131 along a first direction A. A first male terminal 210 passes through the first socket 131 and is inserted between the first contact protrusions 1111 of the two first conductive sheets 111. The second female terminal 120 includes two second conductive sheets 121, which are adjacent to the second socket 132 along a first direction A. A second male terminal 220 passes through the second socket 132 and is inserted between the second contact protrusions 1211 of the two second conductive sheets 121. The distance between the first contact protrusions 1111 and the second contact protrusions 1211 along the first direction A is not equal to the difference in length between the first male terminal 210 and the second male terminal 220, such that the contact between the first male terminal 210 and the first contact protrusions 1111, and the contact between the second male terminal 220 and the second contact protrusions 1211, have a sequential order.

[0113] In one embodiment, the first protective shell 140 and the first insulating body 130 are integrally formed.

[0114] Please continue reading. Figure 7 and Figure 14 In one embodiment, the inner diameter of the first socket 131 is larger than the inner diameter of the second socket 132, and the first socket 131 protrudes from the opening of the first protective shell 140 relative to the second socket 132 along the first direction A.

[0115] In this embodiment, the relationship between the inner diameter of the first socket 131 and the inner diameter of the second socket 132 reflects the relationship between the specifications and structural strength of the first male terminal 210 and the second male terminal 220, i.e., the structural strength of the first male terminal 210 is greater than that of the second male terminal 220. In this embodiment, the second socket 132 is positioned away from the opening of the first protective shell 140 along the first direction A, such that the contact between the second male terminal 220 and the second female terminal 120 occurs after the first male terminal 210 has contacted the first female terminal 110. Exemplarily, in one embodiment, the second contact protrusion 1211 is positioned away from the opening of the first protective shell 140 relative to the first contact protrusion 1111. The distance between the first contact protrusion 1111 and the second contact protrusion 1211 along the first direction A is greater than the difference in length between the first male terminal 210 and the second male terminal 220. That is, before the second male terminal 220 contacts the second contact protrusion 1211, the first male terminal 210 has already contacted the first contact protrusion 1111.

[0116] It is understandable that during the mating process of the female connector 100 and the male connector 200, the friction state changes from dynamic friction to static friction, and the frictional force is relatively large in the initial stage of mating. In this embodiment, the first male terminal 210 and the first female terminal 110 contact first, which means that the male and female terminals with relatively higher structural strength bear a larger frictional force first. This is beneficial for correcting and guiding the subsequent contact of the second male terminal 220 and the second female terminal 120, and also makes the female connector 100 and the connector assembly 11 more adaptable to the vibration environment of the wheel side. If the second male terminal 220 and the second female terminal 120 contact first, due to the relatively poor structural strength of the second male terminal 220, it will not only lead to poor contact between itself and the second female terminal 120, but may also interfere with the connection process of the first male terminal 210 and the first female terminal 110.

[0117] Please refer to the following: Figure 8 , Figure 9 and Figure 11 , Figure 11 An exploded view of the female connector 100 provided in an embodiment of this application.

[0118] In one embodiment, the first insulating body 130 includes a first mounting groove 133 and a second mounting groove 134. One end of a first female terminal 110 is used to pass through the opening of the first mounting groove 133 to the bottom of the first mounting groove 133, and the other end of the first female terminal 110 is used to connect a power cable. One end of a second female terminal 120 is used to pass through the opening of the second mounting groove 134 to the bottom of the second mounting groove 134, and the other end of the second female terminal 120 is used to connect a signal cable. A first socket 131 penetrates the bottom of the first mounting groove 133, and a second socket 132 penetrates the bottom of the second mounting groove 134. The outer diameter of the signal cable is smaller than the outer diameter of the power cable, and the depth of the second mounting groove 134 along the first direction A is smaller than the depth of the first mounting groove 133.

[0119] In this embodiment, the first mounting groove 133 and the second mounting groove 134 of the first insulating body 130 are respectively used to accommodate one end of the first female terminal 110 and one end of the second female terminal 120. In one embodiment, the first conductive piece 111 and the second conductive piece 121 are respectively distributed at one end of the first female terminal 110 and one end of the second female terminal 120. One end of the first female terminal 110 is arranged adjacent to the bottom of the first mounting groove 133 and the first socket 131, which facilitates the connection of the first male terminal 210 to the first conductive piece 111 of the first female terminal 110 after the first male terminal 210 is inserted into the first socket 131. One end of the second female terminal 120 is arranged adjacent to the bottom of the second mounting groove 134 and the second socket 132, which facilitates the connection of the second male terminal 220 to the second conductive piece 121 of the second female terminal 120 after the second male terminal 220 is inserted into the second socket 132, which helps to simplify the connection operation of the first male terminal 210, the second male terminal 220 and the female connector 100.

[0120] In this embodiment, the other end of the first female terminal 110 and the other end of the second female terminal 120 are used to connect a power cable and a signal cable, respectively. The power cable moves towards the bottom of the first mounting groove 133 following one end of the first female terminal 110, and the signal cable moves towards the bottom of the second mounting groove 134 following the other end of the second female terminal 120. The signal cable has relatively low structural strength and is prone to deformation. The groove depth of the second mounting groove 134 along the first direction A is less than the groove depth of the first mounting groove 133, which helps to shorten the movement stroke of the second female terminal 120 and the signal cable, avoids changes in the insertion angle of the second female terminal 120 due to deformation of the signal cable, and improves the connection stability between the second female terminal 120 and the second mounting groove 134.

[0121] Please refer to the following: Figure 11 , Figure 12 , Figure 16 and Figure 17 , Figure 12 This is an exploded view of the female connector 100 provided in an embodiment of this application. Figure 16 This is a cross-sectional view of the female connector 100 provided in an embodiment of this application. Figure 17 This is a cross-sectional view of the female connector 100 provided in an embodiment of this application.

[0122] In one embodiment, a first shielding shell 112 of the first female terminal 110 is distributed within a first mounting groove 133, and a second shielding shell 122 of the second female terminal 120 is distributed within a second mounting groove 134. The first shielding shell 112 is used to accommodate a first male terminal 210, and the second shielding shell 122 is used to accommodate a second male terminal 220. The female connector 100 further includes a terminal locking member 150, which is distributed along a first direction A on the side of the opening of the first mounting groove 133 opposite to the first shielding shell 112 and on the side of the opening of the second mounting groove 134 opposite to the second shielding shell 122. The terminal locking member 150 includes a first notch 151 and a second notch 152.

[0123] When the terminal locking member 150 is in the first locking position relative to the first protective shell 140, the first notch 151 is opposite to the opening of the first mounting groove 133 along the first direction A, and the first notch 151 connects to the first mounting groove 133. The second notch 152 is opposite to the opening of the second mounting groove 134 along the first direction A, and the second notch 152 connects to the second mounting groove 134.

[0124] When the terminal locking member 150 is in the second locking position relative to the first protective shell 140, the projection of the terminal locking member 150 along the first direction A covers part of the projection of the first shielding shell 112 and part of the projection of the first shielding shell 112.

[0125] In this embodiment, the first shielding shell 112 shields the first male terminal 210 and the first female terminal 110 from electromagnetic interference, and the second shielding shell 122 shields the second male terminal 220 and the second female terminal 120 from electromagnetic interference. In one embodiment, the first shielding shell 112 is also used to accommodate the first conductive sheet 111, and the second shielding shell 122 is also used to accommodate the second conductive sheet 121.

[0126] In this embodiment, the female connector 100 is applied to the electromechanical braking device 10 at the wheel. During vehicle operation, the wheel 30 and the brake motor 12 and reducer 14 in the electromechanical braking device 10 are prone to vibration, which may cause the female connector 100 to detach. For example, the first female terminal 110 of the female connector 100 may move away from the bottom of the first mounting groove 133, or even come out of the opening of the first mounting groove 133, causing the connection between the first female terminal 110 and the first male terminal 210 to fail.

[0127] To reduce the negative impact of vibration on the female connector 100 and improve the connection stability between the female connector 100 and the first male terminal 210 and the second male terminal 220, this embodiment employs a terminal locking member 150 to lock the first female terminal 110 and the second female terminal 120. Specifically, the terminal locking members 150 are distributed along the first direction A on the side opposite to the first shielding shell 112 and the second shielding shell 122, at the openings of the first mounting groove 133 and the second mounting groove 134. The terminal locking member 150 has a first locking position and a second locking position relative to the first protective shell 140, meaning that the terminal locking member 150 can be fixed to the first locking position and the second locking position of the first protective shell 140, respectively, and can be interchanged between the first locking position and the second locking position by manual operation. Integrating the structure for locking the first female terminal 110 and the second female terminal 120 into the terminal locking member 150 helps to reduce the number of parts in the female connector 100. In one embodiment, the terminal locking member 150 may also be referred to as a TPA (Terminal Position Assurance) structure.

[0128] In this embodiment, during the installation of the first female terminal 110 and the second female terminal 120, the terminal locking member 150 is in a first locking position. The first notch 151 and the second notch 152 of the terminal locking member 150 are opposite to and connected to the openings of the first mounting groove 133 and the second mounting groove 134, respectively. In this case, the first shielding shell 112 can pass through the first notch 151 and the opening of the first mounting groove 133 of the terminal locking member 150 in sequence, and the second shielding shell 122 can pass through the second notch 152 and the opening of the second mounting groove 134 of the terminal locking member 150 in sequence. The terminal locking member 150 can play a positioning role for the first female terminal 110 and the second female terminal 120, making the installation position of the first female terminal 110 and the second female terminal 120 relative to the first insulating body 130 more accurate.

[0129] In this embodiment, after the first female terminal 110 and the second female terminal 120 are installed, the terminal locking member 150 changes from the first locking position to the second locking position. The position of the first notch 151 relative to the opening of the first mounting groove 133 changes, and the position of the second notch 152 relative to the opening of the second mounting groove 134 changes. The projection of the terminal locking member 150 along the first direction A covers part of the projection of the first shielding shell 112 and part of the projection of the second shielding shell 122. In this case, the terminal locking member 150 can prevent one end of the first female terminal 110 from dislodging outward toward the outside of the first mounting groove 133 and prevent one end of the second female terminal 120 from dislodging outward toward the outside of the second mounting groove 134, thereby enhancing the connection stability between the female connector 100 and the first male terminal 210 and the second male terminal 220.

[0130] Please continue reading. Figures 10 to 12 In one embodiment, the terminal locking member 150 includes a first locking protrusion 153 and a second locking protrusion 154, and the first protective shell 140 includes a through hole 141 and a locking groove 142. The terminal locking member 150 is used to pass through the through hole 141 into the first protective shell 140. The protruding direction of the first locking protrusion 153 and the second locking protrusion 154 is parallel to the recessing direction of the locking groove 142. When the first locking protrusion 153 is located in the first locking groove 142, the terminal locking member 150 is in a first locking position relative to the first protective shell 140. When the second locking protrusion 154 is located in the first locking groove 142, the terminal locking member 150 is in a second locking position relative to the first protective shell 140.

[0131] In one embodiment, when the first protective shell 140 and the first insulating body 130 are integrally formed, the locking groove 142 may also be distributed on the first insulating body 130.

[0132] Please continue reading. Figure 11 and Figure 15In one embodiment, the inner diameter of the first notch 151 is larger than the inner diameter of the second notch 152.

[0133] In this embodiment, the female connector 100 integrates a first female terminal 110 and a second female terminal 120, which share a terminal locking member 150. To accommodate the anti-detachment requirements of both the first female terminal 110 and the second female terminal 120, the inner diameters of the first notch 151 and the second notch 152 of the terminal locking member 150 need to be adjusted according to the specifications of the first female terminal 110 and the second female terminal 120. Since the specifications of the first female terminal 110 are larger than those of the second female terminal 120, this embodiment adjusts the inner diameter of the first notch 151 to be relatively larger, which helps to avoid obstructing the installation of the first female terminal 110 when the terminal locking member 150 is in the first locking position. Since the specifications of the second female terminal 120 are smaller than those of the first female terminal 110, this embodiment adjusts the inner diameter of the second notch 152 to be relatively smaller, which helps to prevent the second female terminal 120 from still being able to detach from the second mounting groove 134 when the terminal locking member 150 is in the second locking position.

[0134] Please continue reading. Figure 8 , Figure 9 and Figure 11 In one embodiment, the length of the second shielding shell 122 along the first direction A is less than the length of the first shielding shell 112. The distance between the second shielding shell 122 and the first notch 151 along the first direction A is equal to the distance between the first shielding shell 112 and the first notch 151.

[0135] In this embodiment, as described above, the length of the second mounting groove 134 along the first direction A is less than the length of the first mounting groove 133, which helps to shorten the insertion stroke of the signal cable connected to the second female terminal 120. The first shielding shell 112 and the second shielding shell 122 are respectively accommodated in the first mounting groove 133 and the second mounting groove 134. Therefore, the length relationship between the first shielding shell 112 and the second shielding shell 122 along the first direction A needs to match the length relationship between the first mounting groove 133 and the second mounting groove 134 along the first direction A.

[0136] In this case, if the bottom of the first mounting groove 133 is flush with the bottom of the second mounting groove 134, it means that the opening of the second mounting groove 134 is away from the first notch 151 relative to the opening of the first mounting groove 133. To enable the first female terminal 110 and the second female terminal 120 to share the terminal locking member 150, the second notch 152 of the terminal locking member 150 must also be away from the first notch 151 relative to the opening of the first mounting groove 133, resulting in a more complex structure for the terminal locking member 150 and a larger space occupied by the terminal locking member 150 within the first protective shell 140. In this embodiment, the distance between the second shielding shell 122 and the first notch 151 is equal to the distance between the first shielding shell 112 and the first notch 151, which is equivalent to the opening of the first mounting groove 133 being flush with the opening of the second mounting groove 134. This aligns the first notch 151 and the second notch 152, simplifying the structure of the terminal locking member 150 and making the internal component arrangement of the female connector 100 more compact.

[0137] Please continue reading. Figure 8 and Figure 9 In one embodiment, along the first direction A, the first socket 131 is opposite to the first sealing ring 113 of the first female terminal 110, and along the first direction A, the second socket 132 is opposite to the second sealing ring 123 of the second female terminal 120. The first sealing ring 113 is distributed between the first protective shell 140 and the power cable, and the second sealing ring 123 is distributed between the first protective shell 140 and the signal cable. The center-to-center distance between any two adjacent first sockets 131 is greater than or equal to 3 mm, and the center-to-center distance between any two adjacent second sockets 132 is greater than or equal to 2 mm.

[0138] In this embodiment, the first sealing ring 113 and the second sealing ring 123 effectively prevent moisture and dust from entering the interior of the female connector 100, protecting the first female terminal 110 and the second female terminal 120 from damage. Compared to all first female terminals 110 and second female terminals 120 sharing a single seal, in this embodiment, both first female terminals 110 and second female terminals 120 employ single-wire seals, making installation more flexible and convenient. Since the functions and specifications of the first female terminals 110 and second female terminals 120 are different, and the inner diameters and insertion strokes of signal cables and power cables are different, sharing a single seal would require comprehensive consideration of the seal's structural design. The installation process would also need to simultaneously meet the sealing requirements of multiple female terminals and cables, which is detrimental to simplifying installation operations and reducing design and manufacturing costs.

[0139] In this embodiment, the first sealing ring 113 and the second sealing ring 123 are respectively opposite to the first insertion hole 131 and the second insertion hole 132. To avoid interference between the first female terminals 110 and between the second female terminals 120, this embodiment adjusts the size range of L1 and L2 to provide installation space for the single-line sealing of the first female terminals 110 and the second female terminals 120.

[0140] Please see Figure 13 and Figure 18 , Figure 13 This is an exploded view of the connector assembly 11 provided in an embodiment of this application. Figure 18 An exploded view of the connector assembly 11 provided in an embodiment of this application.

[0141] In one embodiment, the bus connector further includes a first clamp 160 and a second clamp 170. The first clamp 160 is arranged along a first direction A on the side of the first sealing ring 113 opposite to the first shielding shell 112, and the second clamp 170 is arranged along the first direction A on the side of the second sealing ring 123 opposite to the second shielding shell 122. The inner rings of the first clamp 160 and the second clamp 170 are respectively used to accommodate power cables and signal cables, and the outer rings of the first clamp 160 and the second clamp 170 are respectively fixed to the first through hole 146 and the second through hole 147 of the first protective shell 140.

[0142] In this embodiment, the power cable passes sequentially through the first through hole 146 and the first sealing ring 113, and connects to the first conductive plate 111. The signal cable passes sequentially through the second through hole 147 and the second sealing ring 123, and connects to the second conductive plate 121. The portions of the power cable and signal cable exposed above the first protective shell 140 need to be coated with adhesive to ensure normal cable operation and reduce the negative impact of the external environment on the connector assembly 11. During the coating process, the first wire clamp 160 and the second wire clamp 170 prevent foreign matter such as adhesive from entering the interior of the first female terminal 110 and the second female terminal 120 through the first through hole 146 and the second through hole 147.

[0143] In one embodiment, the electromechanical braking devices 10 corresponding to the four wheels 30 of the electric vehicle 1 can use the same connector assembly 11 provided in the embodiments of this application, thereby achieving a standardized design of the connector assembly 11. In one embodiment, the electromechanical braking devices 10 corresponding to the two front wheels of the electric vehicle 1 and the electromechanical braking devices 10 corresponding to the two rear wheels of the electric vehicle 1 can use the same connector assembly 11 provided in the embodiments of this application.

[0144] Please continue reading. Figure 7In one embodiment, the housing of the male connector 200 of the connector assembly 11 includes a second protective shell 230 for accommodating a first male terminal 210 and a second male terminal 220. The outer peripheral surface of the second protective shell 230 includes a positioning protrusion 231, and the second male terminal 220 is arranged between the positioning protrusion 231 and the first male terminal 210 along a second direction B. The positioning protrusion 231 is for embedding into a positioning groove 143 in the housing of the female connector 100, where the second direction B is perpendicular to the first direction A.

[0145] In this embodiment, for ease of description, the positioning protrusion 231 of the second protective shell 230 is designated as 231a, and the positioning groove 143 that mates with the positioning protrusion 231a is designated as 143a. Since the female connector 100 integrates a first female terminal 110 and a second female terminal 120 with different functions, during the mating process between the female connector 100 and the male connector 200, to avoid assembly errors, the positions of the positioning protrusion 231a and the positioning groove 143a can be used to distinguish the first female terminal 110 and the second female terminal 120. Specifically, the first male terminal 210, the second male terminal 220, and the positioning protrusion 231a are arranged sequentially along the second direction B. Correspondingly, the first female terminal 110, the second female terminal 120, and the positioning groove 143a are arranged sequentially along the second direction B. Inserting the positioning protrusion 231a into the positioning groove 143a can prevent the first male terminal 210 or the second male terminal 220 from being inserted incorrectly.

[0146] In one embodiment, positioning grooves 143a are distributed on the inner peripheral surface of the first protective shell 140 of the female connector 100, and the second protective shell 230 is embedded in the gap between the first protective shell 140 and the first insulating body 130.

[0147] Please continue reading. Figure 7 and Figure 13 In one embodiment, the outer shell of the male connector 200 further includes a second insulating body 240, and a second protective shell 230 for accommodating the second insulating body 240. A first male terminal 210 and a second male terminal 220 protrude from the surface of the second insulating body 240 facing the first insulating body 130. The positioning groove 143b of the first insulating body 130 is used to accommodate a positioning protrusion 231b of the second insulating body 240. The positioning groove 143b of the first insulating body 130 is distributed on at least one side of the first socket 131 and the second socket 132 along a second direction B or at least one side of a third direction C, where the third direction C is perpendicular to the first direction A and the second direction B. In this embodiment, the cooperation of the first protective shell 140 and the first insulating body 130 enables multiple positioning for male-female mating, which helps reduce the risk of installation errors, improves the connection stability between the female connector 100 and the male connector 200, and enhances the vibration resistance of the connector assembly 11.

[0148] Please continue reading. Figure 10 and Figure 15 In one embodiment, the female connector 100 further includes a CPA structure 180, which can move towards or away from the second protective shell 230 along a first direction A within the housing locking groove 144 of the first protective shell 140. After the first protective shell 140 and the second protective shell 230 are mated, the CPA structure 180 engages with the opening of the housing locking groove 144, providing secondary locking for the first protective shell 140 and the second protective shell 230, which helps to improve the connection strength between the female connector 100 and the male connector 200.

[0149] Please continue reading. Figure 7 and Figure 10 In one embodiment, the first protective shell 140 further includes two stop protrusions 145, which are distributed on both sides of the locking groove 144 along the third direction C. The stop protrusions 145 are used to prevent accidental activation of the CPA structure 180 and to prevent the secondary locking effect of the CPA structure 180 from being interfered with by external factors.

[0150] In one embodiment, the female connector 100 includes two CPA structures 180, which are distributed on both sides of the second protective shell 230 along the second direction B, which helps to further enhance the vibration resistance of the connector assembly 11.

[0151] Please refer to the following: Figure 5 , Figure 13 and Figure 18 In one embodiment, the third male terminal 250 of the male connector 200 is used to connect the first male terminal 210 and the motor controller, and the fourth male terminal 260 of the male connector 200 is used to connect the second male terminal 220 and the motor controller. The housing of the male connector 200 includes a mounting base 270 for fixing to the housing of the motor controller 13.

[0152] The mounting base 270 and the second protective shell 230 are arranged along a third direction C, and the female connector 100 and the motor controller 13 are arranged along a third direction C. The third male terminal 250 and the fourth male terminal 260 protrude from the surface of the mounting base 270 facing the motor controller 13 along a first direction A. The third direction C is perpendicular to the first direction A and the second direction B.

[0153] In this embodiment, the female connector 100 and the motor controller 13 are arranged along a third direction C, which means that the female connector 100 utilizes the space on one side of the motor controller 13 along the third direction C. Compared to arranging the female connector 100 and the motor controller 13 along a first direction A, this embodiment avoids extending the length of the electromechanical braking device 10 in the first direction A.

[0154] In this embodiment, the second protective shells 230 of the female connector 100 and the male connector 200 are fixed along a first direction A. The fixing base 270 of the male connector 200 and the second protective shell 230 are arranged along a third direction C, which is perpendicular to the first direction A, so that the female connector 100 and the male connector 200 form a U-shaped connector. If the fixing base 270 and the second protective shell 230 are arranged along the first direction A, the female connector 100 and the male connector 200 form a straight connector, which is not conducive to laying power cables and signal cables in the narrow space of the wheel rim. In this embodiment, the U-shaped connector can change the routing direction of the power cables and signal cables, making it easier to reduce the wheel rim space occupied by the power cables and signal cables by changing the wiring method.

[0155] In one embodiment, the third male terminal 250 and the fourth male terminal 260 are fixedly connected to the circuit board 1301 of the motor controller 13. The arrangement direction of the third male terminal 250, the fourth male terminal 260, the first male terminal 210, and the second male terminal 220 is parallel to the third direction C. Along the first direction A, the length of the first male terminal 210 is less than the length of the second male terminal 220, and along the first direction A, the length of the third male terminal 250 is equal to the length of the fourth male terminal 260. In this embodiment, the lengths of the first male terminal 210 and the second male terminal 220 are not equal in order to cooperate with the first socket 131 and the second socket 132 of the female connector 100, thereby reducing the insertion and extraction force. The third male terminal 250 and the fourth male terminal 260 are always plugged into the circuit board 1301 in the working state, without involving repeated insertion and extraction. Therefore, the equal lengths of the third male terminal 250 and the fourth male terminal 260 can avoid the problem of unstable local connection between the male connector 200 and the circuit board 1301.

[0156] In one embodiment, the third male terminal 250 and the fourth male terminal 260 may be manufactured using a dispensing process, which is beneficial for increasing airtightness.

[0157] Please continue reading. Figure 5 In one embodiment, the motor controller 13, the reducer 14, and the brake motor 12 are arranged along a first direction A, and the male connector 200 along the first direction A is arranged on the side of the motor controller 13 facing the reducer 14.

[0158] In this embodiment, the male connector 200 can utilize the space on the side of the motor controller 13 facing the reducer 14, thereby reducing the overall size of the electromechanical braking device 10 and making it suitable for use in confined wheel-side environments. Since the male connector 200 and the female connector 100 form a U-shaped connector, the U-shaped connector allows the power and signal cables to exit in directions away from the reducer 14, preventing interference between the power and signal cables and the reducer 14 and brake motor 12. This helps reduce the negative impact of cable vibration and ensures the normal operation of the electromechanical braking device 10.

[0159] Please refer to the following: Figure 3 , Figure 7 and Figure 13 In one embodiment, the housing of the female connector 100 includes four first sockets 131 and nine second sockets 132. The connector assembly 11 is connected between the motor controller 13 and the central control box 70 of the electric vehicle 1, and the electromechanical braking device 10 is used to receive signals output from the pedal device 50 through the central control box 70.

[0160] In this embodiment, the connector assembly 11 includes four first female terminals 110 and four first male terminals 210, as well as nine second female terminals 120 and nine second male terminals 220, suitable for scenarios where a central control box 70 is used to uniformly control the electromechanical braking device 10 of multiple wheels 30. The control signal output by the pedal device 50 is transmitted to the electromechanical braking device 10 of the four wheels 30 through the central control box 70.

[0161] In one embodiment, the four first sockets 131 can be divided into two first socket groups, with two first sockets 131 in each first socket group arranged along a second direction B and the two first socket groups arranged along a third direction C. The nine second sockets 132 can be divided into three second socket groups, with three second sockets 132 in each second socket group arranged along a second direction B and the three second socket groups arranged along a third direction C. In this embodiment, the four first sockets 131 are arranged in a two-row, two-column layout, and the nine second sockets 132 are arranged in a three-row, three-column layout. By rationally arranging the positions of the first sockets 131 and the second sockets 132, the utilization rate of the first insulating body 130 can be improved.

[0162] Please refer to section 4 for further details. Figure 14 and Figure 18 In one embodiment, the housing of the female connector 100 includes four first sockets 131 and sixteen second sockets 132. The connector assembly 11 is connected between the motor controller 13 and the pedal device 50, and the electromechanical braking device 10 is used to receive signals output by the pedal device 50.

[0163] In this embodiment, compared to the scheme with nine second sockets 132, the increased number of second sockets 132 allows for direct signal transmission between the connector assembly 11 and the pedal device 50. That is, the control signal output by the pedal device 50 can be directly transmitted to the motor controller 13 of the electromechanical braking device 10 via the connector assembly 11, which helps reduce the number of domain control modules in the central control box 70.

[0164] In one embodiment, the four first sockets 131 can be divided into two first socket groups, with two first sockets 131 in each first socket group arranged along a second direction B, and the two first socket groups arranged along a third direction C. The sixteen second sockets 132 can be divided into four second socket groups, with four second sockets 132 in each second socket group arranged along a second direction B, and the four second socket groups arranged along a third direction C. In this embodiment, the four first sockets 131 are arranged in a two-row, two-column layout, and the sixteen second sockets 132 are arranged in a four-row, four-column layout. By rationally arranging the positions of the first sockets 131 and the second sockets 132, the utilization rate of the first insulating body 130 can be improved.

[0165] Please refer to the following: Figure 15 , Figure 19 and Figure 20 . Figure 19 This is a schematic diagram of the connector assembly 11 provided in an embodiment of this application. Figure 20 This is a schematic diagram of the connector assembly 11 provided in an embodiment of this application.

[0166] In one embodiment, the female connector 100 further includes a rocker arm 190, which is rotatably connected to the fixing post 148 of the first protective shell 140. The guide groove 191 of the rocker arm 190 is used to accommodate the guide post 232 of the second protective shell 230. After the female connector 100 and the male connector 200 are plugged in, the rocker arm 190 is pushed to rotate, causing the guide post 232 to move within the guide groove 191 until the multiple stops 192 of the rocker arm 190 are respectively in a mutually limiting state with the first protective shell 140 and the CPA structure 180. The use of the rocker arm 190 and the CPA structure 180 helps to improve the stability of the connector assembly 11 after assembly. In one embodiment, when the outer shell of the female connector 100 includes four first sockets 131 and sixteen second sockets 132, since the number of first female terminals 110 and second female terminals 120 is large, the use of the rocker arm 190 and the CPA structure 180 can achieve secondary locking of male and female mating, ensuring that the connection strength meets the requirements.

[0167] The foregoing has provided a detailed description of the female connector, connector assembly, electromechanical braking device, and electric vehicle provided in the embodiments of this application. Specific examples have been used to illustrate the principles and embodiments of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in specific embodiments and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A female connector, characterized in that, The female connector is used to mate with the male connector to connect the brake motor and motor controller of the electromechanical braking device. The female connector includes a first female terminal and a second female terminal. The first female terminal is used to transmit current to the brake motor to drive the brake motor, and the second female terminal is used to transmit signals to the motor controller, wherein: The female connector housing includes a first socket and a second socket, the openings of the first socket and the second socket facing the same direction. The first socket is used for the first male terminal of the male connector to pass through the first female terminal in a first direction to transmit the current. The second socket is used for the second male terminal of the male connector to pass through the second female terminal in the first direction to transmit the signal.

2. The female connector according to claim 1, characterized in that, The female connector includes a plurality of first sockets and a plurality of second sockets, the plurality of first sockets being arranged adjacent to each other, the plurality of second sockets being arranged adjacent to each other, and the distance between the center of any one of the first sockets and the center of any one of the second sockets being greater than at least one of the distance between the centers of any two adjacent first sockets or the distance between the centers of any two adjacent second sockets.

3. The female connector according to claim 1, characterized in that, Along the first direction, the first socket is opposite to the first female terminal, and along the first direction, the second female terminal is opposite to the second socket. The arrangement direction of the first female terminal and the second female terminal is perpendicular to the first direction.

4. The female connector according to any one of claims 1-3, characterized in that, The housing of the female connector includes a first protective shell and a first insulating body. The first protective shell is used to house the first insulating body. The opening of the first protective shell is oriented parallel to the opening orientation of the first and second sockets. The first and second sockets are distributed on the surface of the first insulating body opposite to the first and second female terminals, wherein: The distance between the first socket and the opening of the first protective shell along the first direction is not equal to the distance between the second socket and the opening of the first protective shell.

5. The female connector according to claim 4, characterized in that, The inner diameter of the first socket is larger than the inner diameter of the second socket, and the first socket protrudes from the opening of the first protective shell relative to the second socket along the first direction.

6. The female connector according to claim 4, characterized in that, The first insulating body includes a first mounting groove and a second mounting groove. One end of the first female terminal is used to pass through the opening of the first mounting groove to the bottom of the first mounting groove, and the other end of the first female terminal is used to connect a power cable. One end of the second female terminal is used to pass through the opening of the second mounting groove to the bottom of the second mounting groove, and the other end of the second female terminal is used to connect a signal cable. The first socket penetrates the bottom of the first mounting groove, and the second socket penetrates the bottom of the second mounting groove, wherein: The outer diameter of the signal cable is smaller than that of the power cable, and the depth of the second mounting groove along the first direction is smaller than that of the first mounting groove.

7. The female connector according to claim 6, characterized in that, The first shielding shell of the first female terminal is distributed within the first mounting groove, and the second shielding shell of the second female terminal is distributed within the second mounting groove. The first shielding shell is used to accommodate the first male terminal, and the second shielding shell is used to accommodate the second male terminal, wherein: The female connector further includes a terminal locking member, which is distributed along the first direction on the side of the opening of the first mounting groove opposite to the first shielding shell and on the side of the opening of the second mounting groove opposite to the second shielding shell. The terminal locking member includes a first notch and a second notch. When the terminal locking member is in the first locking position relative to the first protective shell, the first notch and the opening of the first mounting groove are opposite to each other along the first direction, the first notch is connected to the first mounting groove, the second notch and the opening of the second mounting groove are opposite to each other along the first direction, and the second notch is connected to the second mounting groove. When the terminal locking member is in the second locking position relative to the first protective shell, the projection of the terminal locking member along the first direction covers a portion of the projection of the first shielding shell and a portion of the projection of the second shielding shell.

8. The female connector according to claim 7, characterized in that, The inner diameter of the first notch is larger than the inner diameter of the second notch.

9. The female connector according to any one of claims 4-8, characterized in that, Along the first direction, the first socket and the first sealing ring of the first female terminal are opposite each other, and along the first direction, the second socket and the second sealing ring of the second female terminal are opposite each other. The first sealing ring is distributed between the first protective shell and the power cable, and the second sealing ring is distributed between the first protective shell and the signal cable, wherein: The distance between the centers of any two adjacent first sockets is greater than or equal to 3 mm, and the distance between the centers of any two adjacent second sockets is greater than or equal to 2 mm.

10. A connector assembly, characterized in that, The connector assembly includes a male connector and a female connector as described in any one of claims 1-9, the male connector being used for mating with the female connector, the housing of the male connector including a second protective shell for accommodating the first male terminal and the second male terminal, the outer peripheral surface of the second protective shell including a positioning protrusion, the second male terminal being arranged between the positioning protrusion and the first male terminal along a second direction, the positioning protrusion being used for embedding in a positioning groove of the housing of the female connector, the second direction being perpendicular to the first direction.

11. An electromechanical braking device, characterized in that, The electromechanical braking device includes a brake motor, a motor controller, and a connector assembly as described in claim 10. A third male terminal of the male connector is used to connect the first male terminal and the motor controller. A fourth male terminal of the male connector is used to connect the second male terminal and the motor controller. The housing of the male connector includes a mounting base for fixing to the housing of the motor controller. Wherein: The mounting base and the second protective shell are arranged along a third direction, the female connector and the motor controller are arranged along the third direction, the third male terminal and the fourth male terminal protrude from the surface of the mounting base facing the motor controller along the first direction, and the third direction is perpendicular to the first direction and the second direction.

12. The electromechanical braking device according to claim 11, characterized in that, The electromechanical braking device further includes a reducer, which is connected to the motor shaft of the brake motor. The motor controller, the reducer, and the brake motor are arranged along the first direction, and the male connector is arranged on the side of the motor controller facing the reducer along the first direction.

13. An electric vehicle, characterized in that, The electric vehicle includes a power battery, a pedal device, and an electromechanical braking device as described in claim 11 or 12, wherein the power battery is used to transmit the current to the brake motor through the connector assembly, the pedal device is used to transmit the signal to the motor controller through the connector assembly, and the electromechanical braking device is used to brake the wheels of the electric vehicle.

14. The electric vehicle according to claim 13, characterized in that, The housing of the female connector includes four first sockets and nine second sockets. The connector assembly is connected between the motor controller and the central control box of the electric vehicle. The electromechanical braking device is used to receive signals output by the pedal device through the central control box.

15. The electric vehicle according to claim 13, characterized in that, The housing of the female connector includes four first sockets and sixteen second sockets. The connector assembly is connected between the motor controller and the pedal device. The electromechanical braking device is used to receive signals output by the pedal device.

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