Brake assembly and electric automobile

Abstract

The utility model provides a brake assembly and an electric vehicle. The brake assembly includes a connector and a brake assembly housing. The connector comprises a plug outer shell, a cylindrical plug inner shell and a cylindrical socket shell, one side face of the plug outer shell comprises a plug mounting hole penetrating in the first direction, the plug mounting hole is used for containing the socket shell and the plug inner shell, one end of the plug inner shell is used for being embedded into the plug mounting hole, and the other end of the plug inner shell is used for being embedded into the socket shell. And the other end of the plug inner shell is used for being embedded into the socket shell. One side plate of the brake assembly shell comprises a socket mounting hole penetrating in the first direction, and the socket mounting hole is used for being embedded into the socket shell. According to the brake assembly, it can be guaranteed that the connector of the brake assembly is not affected by the severe environment of the wheel end, and the production cost of the brake assembly can be reduced. Furthermore, the performance of the electric automobile is improved, and the production cost of the electric automobile is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of brake assemblies, and more specifically, to a brake assembly and an electric vehicle. Background Art

[0002] With the development of new energy technology, electric vehicles have been more widely used. In order to ensure the safe driving of electric vehicles, electric vehicles are equipped with a braking system. The braking system applies braking force to the wheels of the electric vehicle, thereby forcibly braking the electric vehicle.

[0003] The brake system is connected to other devices through the connector in the brake system. Usually, the brake system is installed at the wheel end. Due to the harsh environment at the wheel end and the low vibration reduction performance of the connector, the connector is generally set in the interior space of the electric vehicle. In this way, different brake systems need to be set for different vehicle layouts, which increases the production cost of the brake system. Utility Model Content

[0004] The present application provides a brake assembly and an electric vehicle, which can not only ensure that the connector of the brake assembly is not affected by the harsh environment of the wheel end, but also reduce the production cost of the brake assembly, thereby improving the performance of the electric vehicle and reducing the production cost of the electric vehicle.

[0005] In a first aspect, a brake assembly is provided, the brake assembly comprising a connector and a brake assembly housing. The connector comprises a plug outer housing, a cylindrical plug inner housing and a cylindrical socket housing, one side of the plug outer housing comprises a plug mounting hole penetrating along a first direction, the plug mounting hole is used to accommodate the socket housing and the plug inner housing, one end of the plug inner housing is used to be embedded in the plug mounting hole, and the other end of the plug inner housing is used to be embedded in the socket housing. A side plate of the brake assembly housing comprises a socket mounting hole penetrating along the first direction, the socket mounting hole is used to be embedded in the socket housing.

[0006] The brake assembly provided in the embodiment of the present application has one end of the socket housing of the connector plugged into a side plate of the brake assembly housing, the other end of the socket housing plugged into the plug inner housing, and the plug mounting hole of the plug outer housing accommodates the plugged plug inner housing and the socket housing. In this way, the space enclosed by the side plate of the brake assembly housing and the plug mounting hole of the plug outer housing can wrap the connector to prevent the connector from being affected by the harsh environment of the wheel end. In addition, the connector and the housing of the brake assembly are connected. In other words, the connector and the brake assembly are both arranged at the wheel end. In this way, the brake assembly can be designed in a normalized manner for different vehicle layouts, reducing the production cost of the brake assembly. Furthermore, the brake assembly provided in the embodiment of the present application can not only ensure that the connector is not affected by the harsh environment of the wheel end, but also reduce the production cost of the brake assembly.

[0007] In one implementation, the outer cylindrical wall of the socket housing includes an annular groove for embedding a sealing ring, wherein the size of a sealing ring along the second direction is larger than the size of the socket mounting hole, and the size of a sealing ring along the third direction is larger than the size of the socket mounting hole.

[0008] The size of the sealing ring along the second direction and the third direction is larger than the size of the socket mounting hole of the brake assembly housing, that is, the sealing ring and the socket mounting hole are interference fit, so that the sealing ring can seal the gap between the outer cylinder wall of the socket housing and the socket mounting hole of the brake assembly housing, preventing hot air from entering the interior of the socket housing and being rapidly cooled to produce condensation. In addition, the embedded sealing ring in the annular groove can also achieve a vibration reduction function.

[0009] In one implementation, the socket housing includes two connected housings, wherein the size of one housing along the second direction is smaller than or equal to the size of the socket mounting hole, and the size of one housing along the third direction is smaller than or equal to the size of the socket mounting hole. The size of the other housing along the second direction is larger than the size of the socket mounting hole, and the size of the other housing along the third direction is larger than the size of the socket mounting hole.

[0010] Since the size of the other shell along the second direction and the third direction are both larger than the size of the socket mounting hole, in the process of inserting one side of one shell of the socket shell into the socket mounting hole of the brake assembly shell, the socket shell moves along the first direction to the intersection of one shell and the other shell and cannot move, thereby ensuring that the socket shell is plugged into place.

[0011] In one implementation, the size of the other shell along the first direction is less than or equal to the size of the plug mounting hole, the size of the other shell along the second direction is equal to the size of the plug mounting hole, and the size of the other shell along the third direction is equal to the size of the plug mounting hole. In this way, the other shell can be completely accommodated in the plug mounting hole of the plug outer shell, preventing the connector from being affected by the harsh environment of the wheel end.

[0012] In one implementation, the socket mounting hole includes two hole walls arranged opposite to each other along the second direction, each hole wall includes a protrusion, and the interval between the two protrusions of the two hole walls along the second direction is equal to the size of one shell.

[0013] The two protrusions on the two hole walls can clamp a shell, so that the force between the socket shell and the brake assembly is concentrated on the brake assembly shell and will not be transmitted to the circuit board of the brake assembly, avoiding damage to the circuit board and reducing the service life of the brake assembly.

[0014] In one implementation, the outer cylindrical wall of the inner shell of the plug includes an annular groove, which is used to embed another sealing ring. The size of the other sealing ring along the second direction is larger than the size of the cavity of the socket shell, and the size of the other sealing ring along the third direction is larger than the size of the cavity of the socket shell.

[0015] The size of the sealing ring along the second direction and the third direction is larger than the size of the cavity of the socket housing, that is, the sealing ring and the cavity of the socket housing are interference fit, so that the sealing ring can seal the gap between the socket housing and the inner housing of the plug, thereby improving the sealing effect of the brake assembly.

[0016] In one implementation, the outer cylinder wall of the plug housing includes an annular flange structure, and one side of the annular flange structure includes an annular groove for embedding another sealing ring. The size of the annular groove along the first direction is smaller than the size of the another sealing ring.

[0017] The size of the annular groove along the first direction is smaller than that of another sealing ring. Thus, during the assembly of the plug outer shell and the socket shell, another sealing ring is compressed along the first direction to seal the gap between the plug outer shell and the brake assembly shell, thereby improving the sealing effect of the brake assembly.

[0018] In one implementation, the annular flange structure includes a plurality of through holes penetrating along a first direction, each through hole is used to embed a fastener, and the fastener is used to fix and connect the plug housing and the brake assembly housing.

[0019] By arranging a flange structure on the outer cylinder wall of the plug outer shell, and arranging a through hole on the flange structure, the fastener can fix the plug outer shell and the brake assembly shell through the through hole.

[0020] In one implementation, the brake assembly further includes a plurality of plug terminals, a plurality of cables and a wire sealing member, each plug terminal passes through and is fixed to a partition of the plug inner housing along a first direction, the partition and the wire sealing member are arranged along the first direction, and the wire sealing member is used to be embedded in the plug mounting hole. Each cable passes through and is fixed to the wire sealing member along the first direction, one end of each cable is used to electrically connect to a plug terminal, and the other end of each cable is used to electrically connect to a battery terminal or a controller terminal, and the controller is used to provide a brake signal. In this way, the wire sealing member can not only fix multiple cables, but also improve the stability of the connection between the cables and the plug terminals.

[0021] In an implementation, the size of the wire sealing member along the second direction is larger than the size of the plug installation hole, and the size of the wire sealing member along the third direction is larger than the size of the plug installation hole.

[0022] The dimensions of the wire sealing member along the second direction and the third direction are both larger than the dimensions of the plug mounting hole on the plug outer shell on which the plug inner shell is installed, that is, the wire sealing member and the through hole of the plug outer shell are interference fits, so that the wire sealing member can seal the gap between the cable and the plug mounting hole of the plug outer shell, thereby improving the sealing effect of the brake assembly.

[0023] In one implementation, the brake assembly also includes a plurality of annular protective members, one end of each annular protective member is fixedly connected to another side surface of the plug outer shell, each annular protective member is used to wrap a cable, a size of each annular protective member along a first direction is smaller than a size of the cable wrapped by each annular protective member, and another side surface is arranged opposite to one side surface along the first direction.

[0024] During the movement of the electric vehicle, each annular protective member can prevent stress concentration on the cable near the through hole of the plug housing, so as to prevent the cable from breaking, thereby improving the service life of the brake assembly.

[0025] In one implementation, the outer circumferential surface of each annular protective member includes two groups of grooves, the two groups of grooves are arranged at intervals along the second direction or the third direction, and the distances between the two groups of grooves and the other side surface along the first direction are unequal.

[0026] Since the distances between the two groups of grooves and the other side surface along the first direction are not equal, each annular protective member can produce elastic deformation in different directions as the cable is bent along different directions, thereby avoiding force concentration on the annular protective member, which would cause the annular protective member to be damaged and lose its protective effect on the cable.

[0027] In one implementation, each group of grooves includes at least one groove, and the plurality of grooves in each group of grooves are arranged at intervals along the first direction.

[0028] The bending points of the cable along the first direction are different, and the positions where each annular protective member is elastically deformed as the cable is bent along the first direction are also different. Therefore, it is possible to avoid force concentration on the annular protective member, which may cause the annular protective member to be damaged and lose its protective effect on the cable.

[0029] In one implementation, the size of the plug inner housing along the second direction is equal to the size of the cavity of the socket housing, and the size of the plug inner housing along the third direction is equal to the size of the cavity of the socket housing. In this way, there is almost no gap between the plug inner housing and the inner cylinder wall of the socket housing, simplifying the assembly process between the plug inner housing and the socket housing.

[0030] In a second aspect, an electric vehicle is provided, comprising wheels and a brake assembly as described in the first aspect and any possible implementation of the first aspect, wherein the brake assembly further comprises a brake mechanism, wherein the brake mechanism is transmission-connected to the motor, and the motor is used to drive the brake mechanism to brake the wheel.

[0031] The brake assembly provided in the first aspect can not only ensure that the connector of the brake assembly is not affected by the harsh environment of the wheel end, but also reduce the production cost of the brake assembly, thereby improving the performance of the electric vehicle and reducing the production cost of the electric vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of an electric vehicle provided in an embodiment of the present application.

[0033] Figure 2 A schematic structural diagram of a brake assembly provided in an embodiment of the present application.

[0034] Figure 3 for Figure 2 A schematic exploded view of the brake assembly is shown.

[0035] Figure 4 for Figure 2 A schematic exploded view of the brake assembly housing in the brake assembly is shown.

[0036] Figure 5 and Figure 6 They are Figure 2 A schematic exploded view of the support seat in the brake assembly is shown.

[0037] Figure 7 A schematic structural diagram of another brake assembly provided in an embodiment of the present application.

[0038] Figure 8 for Figure 7 A schematic exploded view of the brake assembly is shown.

[0039] Fig. 9 for Figure 7 A cross-sectional schematic diagram of the brake assembly is shown.

[0040] Fig.10 for Figure 7 The schematic structure diagram of the plug housing in the brake assembly is shown. DETAILED DESCRIPTION

[0041] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0042] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or. For example, A / B can mean A or B. The “and / or” in this article is merely a way to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0043] In the description of this embodiment, unless otherwise specified, “plurality” means two or more.

[0044] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" in the embodiments of the present application are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0045] References to "some embodiments" and the like described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in some embodiments" and the like appearing in different places in this specification do not necessarily all refer to the same embodiment, but rather mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0046] The “vertical” mentioned in this application is not vertical in a strict sense, but is within the allowable error range.

[0047] In the embodiments of the present application, the same reference numerals represent the same component or the same part. In the embodiments of the present application, for multiple identical parts, only one of the parts may be marked with a reference numeral in the drawings as an example. For other identical parts or components, the reference numerals are also applicable. In addition, the sizes and dimensions of the parts shown in the drawings are only exemplary.

[0048] The embodiment of the present application provides a brake assembly, which includes a connector and a brake assembly housing. The connector includes a plug outer housing, a cylindrical plug inner housing, and a cylindrical socket housing. One side of the plug outer housing includes a plug mounting hole that penetrates along a first direction. The plug mounting hole is used to accommodate the socket housing and the plug inner housing. One end of the plug inner housing is used to be embedded in the plug mounting hole, and the other end of the plug inner housing is used to be embedded in the socket housing. A side plate of the brake assembly housing includes a socket mounting hole that penetrates along the first direction. The socket mounting hole is used to be embedded in the socket housing.

[0049] The brake assembly provided in the embodiment of the present application has one end of the socket housing of the connector plugged into a side plate of the brake assembly housing, the other end of the socket housing plugged into the plug inner housing, and the plug mounting hole of the plug outer housing accommodates the plugged plug inner housing and the socket housing. In this way, the space enclosed by the side plate of the brake assembly housing and the plug mounting hole of the plug outer housing can wrap the connector to prevent the connector from being affected by the harsh environment of the wheel end. In addition, the connector and the housing of the brake assembly are connected. In other words, the connector and the brake assembly are both arranged at the wheel end. In this way, the brake assembly can be designed in a normalized manner for different vehicle layouts, reducing the production cost of the brake assembly. Furthermore, the brake assembly provided in the embodiment of the present application can not only ensure that the connector is not affected by the harsh environment of the wheel end, but also reduce the production cost of the brake assembly.

[0050] The present application also provides an electric vehicle. Figure 1 The electric vehicle provided in the embodiment of the present application is first described in detail.

[0051] Figure 1 This is a schematic diagram of the structure of an electric vehicle provided in an embodiment of the present application. Figure 1 As shown, the electric vehicle 1 provided in the embodiment of the present application may include a wheel 10, a pedal mechanism 20 and a brake assembly 30. The brake assembly 30 is connected to the pedal mechanism 20, and the brake assembly 30 is used to brake the wheel 10 to achieve braking of the electric vehicle 1.

[0052] The electric vehicle 1 provided in the embodiment of the present application includes a pure electric vehicle, a hybrid electric vehicle, an extended-range electric vehicle, a plug-in hybrid electric vehicle or a new energy vehicle, etc. Among them, a pure electric vehicle is also called a pure electric vehicle / battery electric vehicle, or simply pure EV / battery EV. A hybrid electric vehicle is also called a hybrid electric vehicle, or simply HEV. An extended-range electric vehicle is also called a range extended electric vehicle, or simply REEV. A plug-in hybrid electric vehicle is also called a plug-in hybrid electric vehicle, or simply PHEV. A new energy vehicle is also called a new energy vehicle, or simply NEV.

[0053] The brake assembly 30 also includes a controller, which is used to provide a brake signal. In one example, the number of brake controllers and the number of brake assemblies 30 are equal to the number of wheels. That is, each controller controls the braking of one wheel through a brake assembly 30. In another example, there are two controllers and four brake assemblies 30, one controller controls the braking of one wheel of the two wheels through each brake assembly 30 of the two brake assemblies 30, and the other controller controls the braking of one wheel of the other two wheels through each brake assembly 30 of the other two brake assemblies 30.

[0054] The existing braking system of electric vehicles includes a service braking system and an electronic parking braking system.

[0055] The braking principle of the service brake system: The controller detects the force applied to the pedal mechanism 20, generates a braking signal according to the force applied to the pedal mechanism 20, and transmits the braking signal to the service brake motor. The service brake motor controls the clamping force of the caliper on the brake pad according to the braking signal to achieve service braking. Among them, the braking signal is used to indicate the clamping force of the caliper on the brake pad.

[0056] The parking brake principle of the electronic parking brake system: the controller detects that the electronic parking brake function has been turned on, and the controller generates a brake signal, and transmits the brake signal to the electronic parking brake motor through the circuit board 320. The electronic parking brake motor controls the brake piston to press the brake disc according to the brake signal to achieve parking. Among them, the brake signal is used to indicate the thrust of the brake piston.

[0057] The parking brake release principle of the electronic parking brake system: the controller detects that the electronic parking brake function has been turned off, and the controller generates a release signal, which is transmitted to the electronic parking brake motor through the circuit board 320. The electronic parking brake motor controls the brake piston to release the brake disc according to the release signal, thereby releasing the parking brake.

[0058] Typically, the power of the service brake motor is greater than that of the electronic parking brake motor. Exemplarily, the service brake motor may be a permanent magnet motor, and the electronic parking brake motor may be a DC motor.

[0059] Combine the following Figures 2 to 10 The structure of the brake assembly 30 provided in the embodiment of the present application is described in detail.

[0060] like Figure 2 , Figure 3 , Figures 7 to 9 As shown, the brake assembly 30 includes a brake assembly housing 310, and the brake assembly housing 310 is used to accommodate components. Figure 3 , Figure 8 and Fig. 9As shown, the brake assembly housing 310 includes a cover 311 and a cover plate 312. The cover 311 has an opening L along a first direction. The cover plate 312 is used to cover the opening L to form a brake assembly housing 310 with an accommodating cavity. One side plate of the brake assembly housing 310 includes a plurality of mounting holes. Each mounting hole penetrates one side plate of the brake assembly housing 310 along the thickness direction of the side plate of the brake assembly housing 310. Figure 4 As shown, the bottom plate 3111 of the brake assembly housing 310 includes a mounting hole T 11 , another mounting hole T 12 And another mounting hole T 13 , a mounting hole T 11 , another mounting hole T 12 And another mounting hole T 13 They penetrate the bottom plate 3111 respectively along the first direction. 11 The annular protective member 331 for embedding a motor 330 described below, and another mounting hole T 12 An annular protective member 341 for embedding another motor 340, and another mounting hole T 13 An annular protective member 351 is used to embed the sensor 350. Figure 8 and Fig. 9 As shown, the cover plate 312 of the brake assembly housing 310 includes another mounting hole T extending along the first direction. 21 , and another mounting hole T 21 The socket housing 411 is used to be inserted into the connector 40 described below.

[0061] It should be noted that Figures 2 to 9 The brake assembly housing 310 in the embodiment is exemplified by a housing formed by deep drawing. In some embodiments, the brake assembly housing 310 can also be formed by integral die casting.

[0062] The brake assembly 30 also includes a motor controller, which is used to control the start or stop, forward or reverse rotation, speed increase or decrease, increase or decrease of driving torque, increase or decrease of braking torque, etc. of the motor. Figure 3 , Figure 8 and Fig. 9As shown, the motor controller includes a circuit board 320, and the circuit board 320 is used to be accommodated in the brake assembly housing 310. In some embodiments, the motor controller and the brake assembly 30 share a housing, that is, the housing of the motor controller is the brake assembly housing 310. The circuit board 320 and the bottom plate 3111 of the brake assembly housing 310 are arranged along a first direction. The circuit board 320 is used to electrically connect the wiring terminal of the controller, and the controller is used to provide a braking signal, that is, the controller is used to provide a braking signal for the brake assembly 30. In some embodiments, the circuit board 320 of the brake assembly 30 is electrically connected to the wiring terminal of the controller via a cable. Among them, the wiring terminal of the controller can be understood as the wiring terminal of the circuit board of the controller or the wiring terminal of the output end of the controller.

[0063] In the embodiment of the present application, the circuit board 320 may also be referred to as a printed circuit board assembly, which is also referred to as a printed circuit board assembly, or PCBA for short.

[0064] The circuit board 320 is also used to fix other devices, such as power tubes, capacitors, inductors, etc. Exemplarily, the power tubes involved in the embodiments of the present application include but are not limited to power semiconductor devices, devices with heat dissipation, etc. For example, the power tube is an insulated gate bipolar transistor or a power inductor. Among them, the insulated gate bipolar transistor is also called an insulated gate bipolar transistor, or abbreviated as IGBT.

[0065] The circuit board 320 further includes at least one group of through holes, each group of through holes including a plurality of through holes. Figure 3 As shown, a group of through holes 321 of the circuit board 320 is used to embed a plurality of cantilever terminals of the connection terminal of each phase stator winding of a motor 330, another group of through holes 322 of the circuit board 320 is used to embed a plurality of cantilever terminals fixed to an end plate 341 of another motor 340, and another group of through holes 323 of the circuit board 320 is used to embed a plurality of cantilever terminals of the connection terminal of the sensor 350. Figure 8 As shown, another set of through holes 324 of the circuit board 320 is used to embed a plurality of socket terminals 412 of the connector 40 described below.

[0066] The brake assembly 30 further includes at least one motor, which is a device for the actuator of the brake assembly 30. Figure 3 As shown, the brake assembly 30 includes a motor 330 and another motor 340. Among them, one motor 330 is a driving brake motor, that is, one motor 330 is used to reduce the speed of the electric vehicle 1 when it is running or even stop. The other motor 340 is a parking brake motor, that is, the other motor 340 is used to keep the stopped car stationary.

[0067] A motor 330 includes a motor shaft, a motor rotor and a motor stator. The motor shaft passes through the shaft hole of the motor rotor, and the motor rotor is embedded in the shaft hole of the motor stator. The motor stator includes a stator core and a stator winding. The inner circumference of the stator core includes a plurality of winding slots extending axially through the stator core, and the plurality of winding slots are used to accommodate the stator winding. The connection terminals of each phase of the stator winding along the axial direction of a motor 330 are arranged on a side of the stator core facing the bottom plate 3111 of the brake assembly housing 310. The connection terminals of each phase of the stator winding include a plurality of cantilever terminals, and each cantilever terminal passes through the bottom plate 3111 along the axial direction of a motor 330 to be electrically connected to the circuit board 320 of the brake assembly 30. Figure 3 As shown, the connection terminal of a phase stator winding of a motor 330 includes a cantilever terminal A 11 and another cantilever terminal A 12 The connection terminal of the other phase stator winding of the motor 330 includes a cantilever terminal A 21 and another cantilever terminal A 22 The connection terminal of another phase stator winding of a motor 330 includes a cantilever terminal A 31 Sub and another cantilever terminal A 32 .

[0068] Accordingly, the circuit board 320 of the brake assembly 30 and the terminal of the stator winding do not need to be provided with three-phase copper bars, nor is it necessary to weld the three-phase copper bars of the circuit board 320 of the brake assembly 30 to the three-phase copper bars of the terminal of the stator winding, so that an electrical connection between a motor 330 and the circuit board 320 of the brake assembly 30 can be achieved, thereby reducing the connection breakpoints between the circuit board 320 of the brake assembly 30 and the terminal of the stator winding. In addition, the bottom plate 3111 of the brake assembly housing 310 can serve as an end cover on the terminal side of each phase of the stator winding of a motor 330, and there is no need to set up an end cover separately. As a result, the brake assembly 30 has a smaller volume, a lower manufacturing cost, and a simpler installation process.

[0069] In some embodiments, the size of each cantilever terminal of the stator winding connection terminal of a motor 330 along the stator core axis is the same. In this way, not only is the processing technology of the cantilever terminal of the stator winding connection terminal of a motor 330 simplified, but also the flow capacity of each cantilever terminal of the stator winding connection terminal of a motor 330 is ensured to be the same.

[0070] Each of the multiple cantilever terminals at the connection end of each phase stator winding is made of metal material. In order to improve the safety of each of the multiple cantilever terminals at the connection end of each phase stator winding in harsh environments, the outer surface of each cantilever terminal at the connection end of each phase stator winding is wrapped with an annular protective member. Specifically, Figure 3As shown, a motor 330 further includes an annular protective member 331, and the annular protective member 331 of a motor 330 is used to wrap a plurality of cantilever terminals of a stator winding terminal of a motor 330. The size of the annular protective member 331 of a motor 330 along the axial direction of the stator core is smaller than the size of each of the plurality of cantilever terminals of a stator winding terminal of each phase of a motor 330. In this way, while ensuring that each cantilever terminal of a stator winding terminal of each phase can be electrically connected to the circuit board 320 of the brake assembly 30, the annular protective member 331 of a motor 330 can insulate and protect each of the plurality of cantilever terminals of a stator winding terminal of each phase of a motor 330, thereby extending the service life of the brake assembly 30.

[0071] In some embodiments, the annular protective member 331 of a motor 330 includes a plurality of through holes penetrating along the axial direction of the stator core, the plurality of through holes of the annular protective member 331 of a motor 330 are arranged at intervals, and each through hole of the annular protective member 331 of a motor 330 is used to embed a cantilever terminal among a plurality of cantilever terminals of the connection terminal of each phase stator winding of a motor 330. The size of each through hole of the annular protective member 331 of a motor 330 along the second direction is equal to the size of the cantilever terminal embedded in each through hole of the annular protective member 331 of a motor 330, and the size of each through hole of the annular protective member 331 of a motor 330 along the third direction is equal to the size of the cantilever terminal embedded in each through hole of the annular protective member 331 of a motor 330. In this way, each through hole of the annular protective member 331 of a motor 330 can prevent the cantilever terminal embedded in each through hole from moving.

[0072] In some embodiments, the dimension of one end of the annular protective member 331 of the motor 330 along the axial direction of the stator core gradually decreases, and one end of the annular protective member 331 of the motor 330 is arranged at the side of the circuit board 320 of the brake assembly 30 facing the other end of the annular protective member 331 of the motor 330. In other words, the side of the annular protective member 331 of the motor 330 facing the circuit board 320 of the brake assembly 30 is provided with a chamfer, and the chamfer of the annular protective member of the motor 330 can play a guiding role in the process of the annular protective member 331 of the motor 330 passing through the bottom plate 3111, thereby improving the assembly efficiency of the motor 330 and the bottom plate 3111.

[0073] In some embodiments, the size of the annular protection member 331 of one motor 330 along the axial direction of the stator core is greater than or equal to the size of the bottom plate 3111. In this way, each of the multiple cantilever terminals of the connection terminal of each phase stator winding of one motor 330 will not be exposed outside the brake assembly housing 310, thereby improving the insulation safety of the brake assembly 30.

[0074] In some embodiments, a plurality of cantilever terminals of the connection terminal of each phase stator winding of a motor 330 are connected to a mounting hole T through an annular protective member 331 of the motor 330. 11 Wherein, a mounting hole T along the second direction 11 The size is equal to the size of the annular protective member 331 of the motor 330, and a mounting hole T is provided along the third direction. 11 The size is equal to the size of the annular protective member 331 of one motor 330 .

[0075] Accordingly, the multiple cantilever terminals of a motor 330 are respectively passed through a mounting hole T on the bottom plate 3111. 11 After that, the circuit board 320 is dropped into the brake assembly housing 310, and the circuit board 320 can be assembled with the multiple cantilever terminals of a motor 330. In this way, the multiple cantilever terminals of a motor 330 are all connected with a mounting hole T of the bottom plate 3111. 11 As an installation positioning reference, the installation deviation between multiple cantilever terminals of a motor 330 and the circuit board 320 can be reduced, thereby improving the installation efficiency of the brake assembly 30.

[0076] In some embodiments, a mounting hole T is provided along the axial direction of the stator core. 11 That is, a mounting hole T 11 A chamfer is provided on one side facing the motor 330 , so that the annular protective member 331 of the motor 330 embedded in the bottom plate 3111 can be guided, thereby improving the assembly efficiency of the motor 330 and the bottom plate 3111 .

[0077] In some embodiments, the outer peripheral surface of the annular protective member 331 of a motor 330 includes an annular groove, and the annular groove of the annular protective member of the motor 330 is used to embed an annular rubber ring. The size of an annular rubber ring along the second direction is larger than that of a mounting hole T 11 The size of the annular rubber ring along the third direction is larger than that of the mounting hole T 11 Thus, the annular protective member 331 of the motor 330 is connected to a mounting hole T through an annular rubber ring. 11 Sealed connection, an annular rubber ring can not only be embedded in an annular protective member 331 of a motor 330 into a mounting hole T 11 By correcting the position, it can also achieve the effect of vibration reduction.

[0078] It should be noted that the outer circumferential surface of the annular protective member 331 of a motor 330 can be understood as: the outer circumferential surface of the annular protective member 331 of the motor 330 that surrounds the stator core axially.

[0079] In some embodiments, the annular protective member 331 of a motor 330 and the multiple cantilever terminals of the connection terminal of each phase stator winding of the motor 330 are an integral structure, thus reducing the production cost of the brake assembly 30. Exemplarily, the annular protective member 331 of a motor 330 and the multiple cantilever terminals of the connection terminal of each phase stator winding of the motor 330 are integrally formed by an injection molding process.

[0080] In some embodiments, the annular protective member 331 of a motor 330 and an annular rubber ring are integrated into one structure, thus reducing the production cost of the brake assembly 30. Exemplarily, the annular protective member 331 of a motor 330 and an annular rubber ring are integrally formed by injection molding.

[0081] like Figure 3 As shown, the other motor 340 includes an end plate facing the bottom plate 3111 of the brake assembly housing 310, and an end plate of the other motor 340 is used to fix a plurality of cantilever terminals. Figure 3 As shown, another motor 340 includes a cantilever terminal B 11 and another cantilever terminal B 12 Among them, along the axial direction of the stator core, one end of each cantilever terminal of another motor 340 is used to electrically connect to the circuit board of another motor 340, and the other end of each cantilever terminal of another motor 340 passes through the bottom plate 3111 to be electrically connected to the circuit board 320 of the brake assembly 30.

[0082] Accordingly, the other motor 340 and the circuit board 320 of the brake assembly 30 do not need to be provided with a separate connector, so that the other motor 340 can be electrically connected to the circuit board 320 of the brake assembly 30, thereby reducing the connection breakpoints between the other motor 340 and the circuit board 320 of the brake assembly 30. Further, the brake assembly 30 has a smaller volume, a simpler installation process, and a lower manufacturing cost.

[0083] In some embodiments, one end of each cantilever terminal of another motor 340 is electrically connected to the circuit board of another motor 340 through a cable. In this way, the layout of the internal components of another motor 340 can be flexibly set. In other embodiments, one end of each cantilever terminal of another motor 340 is directly electrically connected to the circuit board of another motor 340. In other embodiments, the circuit board of another motor 340 and an end plate of another motor 340 are arranged along the first direction. In this way, the volume of another motor 340 can be reduced and the production cost of another motor 340 can be reduced.

[0084] In some embodiments, the size of each cantilever terminal of the other motor 340 along the stator core axis is the same. In this way, not only the processing technology of the cantilever terminal of the other motor 340 is simplified, but also the flow capacity of each cantilever terminal of the other motor 340 is guaranteed to be the same.

[0085] Each of the multiple cantilever terminals of the other motor 340 is made of metal material. In order to improve the safety of each cantilever terminal of the other motor 340 in harsh environments, the outer surface of each cantilever terminal of the other motor 340 is wrapped with an annular protective member. Figure 3 As shown, the other motor 340 further includes an annular protective member 341, and the annular protective member 341 of the other motor 340 is used to wrap the multiple cantilever terminals of the other motor 340. The size of the annular protective member 341 of the other motor 340 along the axial direction of the stator core is smaller than the size of each of the multiple cantilever terminals of the other motor 340. In this way, while ensuring that each cantilever terminal of the other motor 340 can be electrically connected to the circuit board 320 of the brake assembly 30, the annular protective member 341 of the other motor 340 can insulate and protect each of the multiple cantilever terminals of the other motor 340, thereby extending the service life of the brake assembly 30.

[0086] In some embodiments, the annular protective member 341 of the other motor 340 includes a plurality of through holes extending axially through the stator core, the plurality of through holes of the annular protective member 341 of the other motor 340 are arranged at intervals, and each through hole of the annular protective member 341 of the other motor 340 is used to embed one of the plurality of cantilever terminals of the other motor 340. The size of each through hole of the annular protective member 341 of the other motor 340 along the second direction is equal to the size of the cantilever terminal embedded in each through hole of the annular protective member 341 of the other motor 340, and the size of each through hole of the annular protective member 341 of the other motor 340 along the third direction is equal to the size of the cantilever terminal embedded in each through hole of the annular protective member 341 of the other motor 340. In this way, each through hole of the annular protective member 341 of the other motor 340 can prevent the cantilever terminal embedded in each through hole from moving.

[0087] In some embodiments, the dimension of one end of the annular protective member 341 of the other motor 340 along the axial direction of the stator core gradually decreases, and one end of the annular protective member 341 of the other motor 340 is arranged at the side of the other end of the annular protective member 341 of the other motor 340 facing the circuit board 320 of the brake assembly 30. In other words, the side of the annular protective member 341 of the other motor 340 facing the circuit board 320 of the brake assembly 30 is provided with a chamfer, and the chamfer of the annular protective member 341 of the other motor 340 can play a guiding role in the process of the annular protective member 341 of the other motor 340 passing through the bottom plate 3111, thereby improving the assembly efficiency of the other motor 340 and the bottom plate 3111.

[0088] In some embodiments, the size of the annular protective member 341 of the other motor 340 along the axial direction of the stator core is greater than or equal to the size of the bottom plate 3111. In this way, each of the multiple cantilever terminals of the other motor 340 will not be exposed outside the brake assembly housing 310, thereby improving the insulation safety of the brake assembly 30.

[0089] In some embodiments, the multiple cantilever terminals of another motor 340 are connected to another mounting hole T through the annular protective member 341 of another motor 340. 12 Wherein, another mounting hole T along the second direction 12 The size of the annular protective member 341 of the other motor 340 is equal to the size of the annular protective member 341 of the other motor 340, and another mounting hole T along the third direction 12 The size of is equal to the size of the annular protective member 341 of the other motor 340 .

[0090] Correspondingly, the multiple cantilever terminals of another motor 340 are respectively passed through another mounting hole T on the bottom plate 3111. 12 After that, the circuit board 320 is dropped into the brake assembly housing 310, and the circuit board 320 can be assembled with the multiple cantilever terminals of the other motor 340. In this way, the multiple cantilever terminals of the other motor 340 are all connected with the other mounting hole T of the bottom plate 3111. 12 As an installation positioning reference, the installation deviation between the multiple cantilever terminals of another motor 340 and the circuit board 320 can be reduced, thereby improving the installation efficiency of the brake assembly 30.

[0091] In some embodiments, another mounting hole T is provided along the axial direction of the stator core. 12 That is, the other mounting hole T 12 A chamfer is provided on the side facing the other motor 340 , so that the annular protective member 341 of the other motor 340 embedded in the bottom plate 3111 can be guided, thereby improving the assembly efficiency of the other motor 340 and the bottom plate 3111 .

[0092] In some embodiments, the outer peripheral surface of the annular protective member 341 of the other motor 340 includes an annular groove, and the annular groove of the annular protective member 341 of the other motor 340 is used to embed another annular rubber ring. The size of the other annular rubber ring along the second direction is larger than the other mounting hole T 12 The size of the other annular rubber ring along the third direction is larger than the other mounting hole T 12 Thus, the annular protective member 341 of the other motor 340 is connected to the other mounting hole T through another annular rubber ring. 12 The other annular rubber ring can not only be used to seal the annular protective member 341 of the other motor 340, but also be embedded in the other mounting hole T 12 By correcting the position, it can also achieve the effect of vibration reduction.

[0093] It should be noted that the outer circumferential surface of the annular protective member 341 of the other motor 340 can be understood as: the outer circumferential surface of the annular protective member 341 of the other motor 340 that surrounds the stator core axially.

[0094] In some embodiments, the annular protective member 341 of another motor 340 and the multiple cantilever terminals of another motor 340 are an integral structure, thus reducing the production cost of the brake assembly 30. Exemplarily, the annular protective member 341 of another motor 340 and the multiple cantilever terminals of another motor 340 are integrally formed by an injection molding process.

[0095] In some embodiments, the annular protective member 341 of the other motor 340 and the other annular rubber ring are an integral structure, thus reducing the production cost of the brake assembly 30. Exemplarily, the annular protective member 341 of the other motor 340 and the other annular rubber ring are integrally formed by injection molding.

[0096] like Figure 3 As shown, the brake assembly 30 further includes a sensor 350, which is used to detect and feed back to the controller a braking force output by a motor 330. The wiring terminals of the sensor 350 include a plurality of cantilever terminals, such as Figure 3 As shown, the terminal of the sensor 350 includes a cantilever terminal C 11 and another cantilever terminal C 12 Each cantilever terminal of the terminal of the sensor 350 along the first direction is electrically connected to the circuit board 320 through the bottom plate 3111.

[0097] Accordingly, the sensor 350 does not need to be wired, and a connector does not need to be provided on the circuit board 320 of the brake assembly 30, so that the sensor 350 can be electrically connected to the circuit board 320 of the brake assembly 30, thereby reducing the connection breakpoints between the circuit board 320 of the brake assembly 30 and the sensor 350. Furthermore, the brake assembly 30 is further reduced in size, simple in installation process, and low in manufacturing cost.

[0098] In some embodiments, the connection terminal of the sensor 350 may be understood as a connection terminal of a circuit board of the sensor 350 or a connection terminal of an output end of the sensor 350 .

[0099] In some embodiments, the size of each cantilever terminal of the sensor 350 along the axial direction of the stator core is the same. In this way, not only the processing technology of the cantilever terminal of the sensor 350 is simplified, but also the flow capacity of each cantilever terminal of the sensor 350 is ensured to be the same.

[0100] Each of the multiple cantilever terminals of the sensor 350 is made of metal material. In order to improve the safety of each cantilever terminal of the sensor 350 in harsh environments, the outer surface of each cantilever terminal of the sensor 350 is wrapped with an annular protective member. Figure 3 As shown, the sensor 350 further includes an annular protective member 351, and the annular protective member 351 of the sensor 350 is used to wrap the multiple cantilever terminals of the sensor 350. The size of the annular protective member 351 of the sensor 350 along the axial direction of the stator core is smaller than the size of each of the multiple cantilever terminals of the sensor 350. In this way, while ensuring that each cantilever terminal of the sensor 350 can be electrically connected to the circuit board 320 of the brake assembly 30, the annular protective member 351 of the sensor 350 can insulate and protect each of the multiple cantilever terminals of the sensor 350, thereby extending the service life of the brake assembly 30.

[0101] In some embodiments, the annular protective member 351 of the sensor 350 includes a plurality of through holes penetrating along the axial direction of the stator core, the plurality of through holes of the annular protective member 351 of the sensor 350 are arranged at intervals, and each through hole of the annular protective member 351 of the sensor 350 is used to embed one of the plurality of cantilever terminals of the sensor 350. The size of each through hole of the annular protective member 351 of the sensor 350 along the second direction is equal to the size of the cantilever terminal embedded in each through hole of the annular protective member 351 of the sensor 350, and the size of each through hole of the annular protective member 351 of the sensor 350 along the third direction is equal to the size of the cantilever terminal embedded in each through hole of the annular protective member 351 of the sensor 350. In this way, each through hole of the annular protective member 351 of the sensor 350 can prevent the cantilever terminal embedded in each through hole from moving.

[0102] In some embodiments, the dimension of one end of the annular protective member 351 of the sensor 350 along the axial direction of the stator core gradually decreases along the axial direction of the stator core, and one end of the annular protective member 351 of the sensor 350 is arranged at the side of the circuit board 320 of the brake assembly 30 facing the other end of the annular protective member 351 of the sensor 350. In other words, a chamfer is provided on the side of the annular protective member 351 of the sensor 350 facing the circuit board 320 of the brake assembly 30, and the chamfer of the annular protective member of the sensor 350 can play a guiding role in the process of the annular protective member 351 of the sensor 350 passing through the bottom plate 3111, thereby improving the assembly efficiency of the sensor 350 and the bottom plate 3111.

[0103] In some embodiments, the size of the annular protective member 351 of the sensor 350 along the axial direction of the stator core is greater than or equal to the size of the bottom plate 3111. In this way, each of the multiple cantilever terminals of the sensor 350 will not be exposed outside the brake assembly housing 310, thereby improving the insulation safety of the brake assembly 30.

[0104] In some embodiments, the plurality of cantilever terminals of the sensor 350 are connected to another mounting hole T through the annular protective member 351 of the sensor 350. 13 There is another mounting hole T along the second direction. 13 The size of the annular protective member 351 of the sensor 350 is equal to that of the annular protective member 351 of the sensor 350. There is another mounting hole T along the third direction. 13 The size of is equal to the size of the annular protective member 351 of the sensor 350 .

[0105] Correspondingly, the multiple cantilever terminals of the sensor 350 are respectively passed through another mounting hole T on the bottom plate 3111. 13 After that, the circuit board 320 is dropped into the brake assembly housing 310, and the circuit board 320 can be assembled with the multiple cantilever terminals of the sensor 350. In this way, the multiple cantilever terminals of the sensor 350 are all connected with another mounting hole T of the bottom plate 3111. 13 As an installation positioning reference, the installation deviation between the multiple cantilever terminals of the sensor 350 and the circuit board 320 can be reduced, thereby improving the installation efficiency of the brake assembly 30.

[0106] In some embodiments, there is another mounting hole T along the axial direction of the stator core. 13 That is, another mounting hole T 13 A chamfer is provided on the side facing the sensor 350 , so that the annular protective member 351 of the sensor 350 embedded in the bottom plate 3111 can be guided, thereby improving the assembly efficiency of the sensor 350 and the bottom plate 3111 .

[0107] In some embodiments, the outer peripheral surface of the annular protective member 351 of the sensor 350 includes an annular groove, and the annular groove of the annular protective member 351 of the sensor 350 is used to embed another annular rubber ring. The size of the another annular rubber ring along the second direction is larger than the size of the another mounting hole T 13 The size of the annular rubber ring along the third direction is larger than the size of the mounting hole T 13 Thus, the annular protective member 351 of the sensor 350 is connected to another mounting hole T through another annular rubber ring. 13 Sealed connection, another annular rubber ring can not only embed the annular protective member of the sensor 350 into another mounting hole T 13 By correcting the position, it can also achieve the effect of vibration reduction.

[0108] It should be noted that the outer circumferential surface of the annular protective member 351 of the sensor 350 can be understood as: the outer circumferential surface of the annular protective member 351 of the sensor 350 that surrounds the stator core axially.

[0109] In some embodiments, the annular protective member 351 of the sensor 350 and the multiple cantilever terminals of the sensor 350 are an integral structure, thus reducing the production cost of the brake assembly 30. Exemplarily, the annular protective member 351 of the sensor 350 and the multiple cantilever terminals of the sensor 350 are integrally formed by an injection molding process.

[0110] In some embodiments, the annular protective member 351 of the sensor 350 and another annular rubber ring are an integral structure, thus reducing the production cost of the brake assembly 30. Exemplarily, the annular protective member 351 of the sensor 350 and another annular rubber ring are integrally formed by injection molding.

[0111] like Figure 3 As shown, the brake assembly 30 further includes a support seat 360, which is used to fix a plurality of cantilever terminals of the sensor 350. Specifically, the support seat 360 is arranged on a side of the sensor 350 facing a motor 330 along the axial direction of the stator core. Figure 3 and Figure 6 As shown, the support seat 360 includes an end surface 361 facing the bottom plate 3111, and a through hole T extending through the end surface 361 along the axial direction of the stator core. 14 The terminal of the sensor 350 along the axial direction of the stator core passes through the through hole T of one end surface 361 of the support seat 360. 14 Accordingly, not only the size of the terminal of the sensor 350 is reduced, but also the risk of failure of the sensor 350 due to the high vibration environment of the wheel side can be reduced.

[0112] In some embodiments, the through hole T of one end surface 361 along the second direction 14The size of the sensor 350 is equal to the size of the terminal, and the through hole T is connected along the third direction. 14 The size of the through hole T of one end face 361 is equal to the size of the terminal of the sensor 350. 14 The terminals of the sensor 350 can be prevented from moving.

[0113] It should be noted that the second direction, the third direction, and the axial direction of the stator core are perpendicular to each other. The axial direction of the stator core can be understood as the first direction mentioned above, the height direction of the brake assembly housing 310, or the up-down direction of the brake assembly 30. The second direction can be understood as the length direction of the brake assembly housing 310 or the left-right direction of the brake assembly 30. The third direction can be understood as the width direction of the brake assembly housing 310 or the front-back direction of the brake assembly 30.

[0114] like Figure 3 As shown, the support base 360 ​​is also used to accommodate the sensor 350. Specifically, as Figure 5 As shown, the support seat 360 includes another end surface 362 away from the bottom plate 3111, and the other end surface 362 includes a groove G 11 , Groove G 11 It is used to accommodate the sensor 350. Accordingly, the sensor 350 can be placed in the groove G of the support base 360. 11 In this embodiment, the dimension of the brake assembly 30 along the axial direction of the stator core can be reduced.

[0115] like Figure 3 As shown, the support base 360 ​​is also used to accommodate a motor 330. Specifically, as Figure 3 and Figure 6 As shown, one end surface 361 of the support seat 360 also includes a groove G 12 , Groove G 12 For accommodating a motor 330, the groove G along the axial direction of the stator core 12 With through hole T 14 Accordingly, a motor 330 can be placed in the groove G of the support seat 360. 12 In this embodiment, the dimension of the brake assembly 30 along the axial direction of the stator core can be reduced.

[0116] In some embodiments, the groove G of one end surface 361 along the second direction 12 The size is equal to the housing size of a motor 330, and the groove G of an end face 361 along the third direction 12 The size of is equal to the housing size of a motor 330. Accordingly, the groove G of an end face 361 12 One motor 330 can be prevented from moving.

[0117] In some embodiments, the brake assembly housing 310 further includes a middle partition, which is arranged between the bottom plate 3111 and the circuit board 320. There is a gap between the middle partition and the bottom plate 3111 along the first direction, and another motor 340 is arranged between the middle partition and the bottom plate 3111. In this way, another motor 340 is arranged in the space between the middle partition and the bottom plate 3111, and one motor 330, the sensor 350, and the support seat 360 are all arranged outside the brake assembly housing 310.

[0118] In this embodiment, the bottom plate 3111 does not include the further mounting hole T described above. 13 , the middle partition includes another mounting hole T 13 , and the middle partition also includes a mounting hole T as described above 11 and another mounting hole T 12 , a mounting hole T 11 , another mounting hole T 12 Another mounting hole T 13 The plurality of cantilever terminals of the connection terminal of each phase stator winding of a motor 330 pass through a mounting hole T of the bottom plate 3111 in sequence. 11 , a mounting hole T in the middle partition 11 The motor 340 is electrically connected to the circuit board 320. Each cantilever terminal of the other motor 340 passes through another mounting hole T of the middle partition plate. 13 The multiple cantilever terminals of the sensor 350 pass through another mounting hole T of the bottom plate 3111 in sequence. 12 , Another mounting hole T of the middle partition 12 Electrically connected to the circuit board 320 .

[0119] About a mounting hole T of the middle partition 11 The description can refer to a mounting hole T of the bottom plate 3111 above. 11 Related description, another mounting hole T in the middle partition 12 The description of the above can refer to another mounting hole T of the bottom plate 3111 12 Related description, and another mounting hole T in the middle partition 13 The description of the above can refer to another mounting hole T of the bottom plate 3111. 13 The relevant description will not be repeated here.

[0120] The brake assembly 30 also includes a connector 40, through which the brake assembly 30 is connected to a device outside the brake assembly. Figures 7 to 10 The structure of the connector 40 is described in detail.

[0121] like Figure 8 and Fig. 9As shown, the connector 40 includes a socket 410, and the socket 410 includes a socket housing 411. The socket housing 411 is a cylindrical structure with openings at both ends. The socket housing 411 is used to be embedded in the socket mounting hole of the brake assembly housing 310.

[0122] In one example, the socket mounting hole is located on any one of the plates of the brake assembly housing 310. For example, the socket housing 411 includes two side plates arranged along the second direction, and the socket mounting hole is located on the other side plate of the brake assembly housing 310, and the other side plate is any one of the two side plates. In this way, the brake assembly 30 is electrically connected to other components outside the brake assembly 30 through the socket 410 on the other side plate of the brake assembly housing 310. Since the socket housing 411 is arranged on the other side plate of the brake assembly 30, and the socket terminal 412 is connected to the circuit board 320 of the brake assembly 30 through the other side plate, the connector 40 will not occupy the deployment space of various components inside the brake assembly 30.

[0123] In an example, Figure 8 and Fig. 9 As shown, the socket mounting hole is another mounting hole T described above. 21 , thus, the socket mounting hole is located on the cover plate 312 of the brake assembly housing 310 .

[0124] like Figure 8 As shown, the outer wall of the socket housing 411 includes an annular groove G 21 , annular groove G 21 The seal ring S1 is used to be embedded. The size of the seal ring S1 along the second direction is larger than the size of the socket mounting hole, and the size of the seal ring S1 along the third direction is larger than the size of the socket mounting hole. That is, the seal ring S1 and the socket mounting hole are interference fit, so that the seal ring S1 can seal the gap between the outer cylinder wall of the socket housing 411 and the socket mounting hole of the brake assembly housing 310, preventing hot air from entering the interior of the socket housing 411 and causing condensation due to rapid cooling. In addition, the annular groove G of the outer cylinder wall of the socket housing 411 21 The embedded sealing ring S1 can also achieve a vibration reduction function.

[0125] In some embodiments, the socket housing 411 includes two connected housings, the size of one housing along the second direction is less than or equal to the size of the socket mounting hole, and the size of one housing along the third direction is less than or equal to the size of the socket mounting hole. The size of the other housing along the second direction is greater than the size of the socket mounting hole, and the size of the other housing along the third direction is greater than the size of the socket mounting hole. In this way, when one side of one housing of the socket housing 411 is inserted into the socket mounting hole of the brake assembly housing 310, the socket housing moves along the first direction to the intersection of one housing and the other housing and cannot move, thereby ensuring that the socket housing 411 is plugged in place.

[0126] like Fig. 9 and Fig.10 As shown, the end surface of the socket housing 411 facing the circuit board 320 includes a plurality of protrusions P1, and each protrusion P1 is used to abut the circuit board 320 along the first direction. In this way, when the side of the socket housing 411 with the protrusions P1 is inserted into the socket mounting hole of the brake assembly housing 310, the socket housing 411 moves along the first direction to the intersection of the protrusions P1 and the circuit board 320 and cannot move, thereby ensuring that the socket housing 411 is plugged in place.

[0127] In some embodiments, the socket mounting hole includes two hole walls arranged opposite to each other along the second direction, each hole wall includes a protrusion, and the interval between the two protrusions of the two hole walls along the second direction is equal to the minimum size of the socket housing 411. In this way, the two protrusions of the two hole walls can clamp the socket housing 411, so that the force between the socket housing 411 and the brake assembly 30 is concentrated on the brake assembly housing 310, and will not be transmitted to the circuit board 320 of the brake assembly 30, thereby avoiding damage to the circuit board 320 and reducing the service life of the brake assembly 30.

[0128] In some embodiments, the brake assembly 30 further includes a snap ring / circlip, and the size of the snap ring / circlip along the second direction is larger than the maximum size of the socket housing 411. In this way, the snap ring / circlip can abut against the socket mounting hole along the second direction, so that the socket housing 411 cannot move along the first direction. Alternatively, the size of the snap ring / circlip along the third direction is larger than the minimum size of the socket housing 411. In this way, the snap ring / circlip can abut against the socket mounting hole along the third direction, so that the socket housing 411 cannot move along the first direction.

[0129] The socket housing 411 includes a middle partition, and the circuit board 320 and the middle partition of the socket housing 411 are arranged along a first direction. The connector 40 also includes a plurality of socket terminals 412 , each of which passes through and is fixed to the middle partition of the socket housing 411 and is electrically connected to the circuit board 320 .

[0130] In the embodiment where the socket mounting hole is located on the cover plate 312 of the brake assembly housing 310, each socket terminal 412 extends along the first direction, and each socket terminal 412 passes through the middle partition of the socket housing 411 along the first direction to be electrically connected to the circuit board 320. In some embodiments, the length of each socket terminal 412 along the first direction is the same. In this way, not only the processing technology of the socket terminal 412 is simplified, but also the flow capacity of each socket terminal 412 is ensured to be the same.

[0131] In the embodiment where the socket mounting hole is located on the other board of the brake assembly housing 310, the socket terminal 412 includes two connected parts, one part of the socket terminal 412 extends along the thickness direction of the other board of the brake assembly housing 310, and the other part of the socket terminal 412 extends along the first direction. In the second direction, a part of each socket terminal 412 passes through the middle partition of the socket housing 411, and the other part of the socket terminal 412 is electrically connected to the circuit board 320. In some embodiments, the length of the other part of each socket terminal 412 along the first direction is the same. In this way, the processing technology of the socket terminal 412 is simplified.

[0132] In some embodiments, the length of each socket terminal 412 is the same, which not only simplifies the processing technology of the socket terminal 412, but also ensures that the flow capacity of each socket terminal 412 is the same.

[0133] In some embodiments, the plurality of socket terminals 412 are arranged in an array, and there is a gap between two adjacent socket terminals 412. In this way, the risk of short circuit between the socket terminals 412 can be avoided, thereby improving the safety of the connector 40.

[0134] like Figure 8 and Fig. 9 As shown, the connector 40 further includes a plug 420, which includes a plug outer shell 421 and a cylindrical plug inner shell 422. Fig. 9 and 10 As shown, one side surface 4211 of the plug housing 421 includes a plug mounting hole T extending along a first direction. 22 ,like Fig. 9 As shown, one end of the plug inner housing 422 is used to be embedded in the plug mounting hole T of the plug outer housing 421. 22 The other end of the plug inner housing 422 is used to be embedded in the socket housing 411. In this way, the cover plate 312 of the brake assembly housing 310 and the plug mounting hole T of the plug outer housing 421 are connected. 22The enclosed space can wrap the connector 40 to prevent the connector 40 from being affected by the harsh environment of the wheel end. In addition, the connector 40 is connected to the brake assembly housing 310. In other words, the connector 40 and the brake assembly 30 are both arranged at the wheel end. In this way, the brake assembly 30 can be designed in a standardized manner for different vehicle layouts, thereby reducing the production cost of the brake assembly 30.

[0135] like Figures 8 to 10 As shown, the end surface of the plug housing 421 facing the circuit board 320 includes an annular flange structure 4212, the annular flange structure 4212 includes a side surface 4211 facing the circuit board 320, and one side surface 4211 of the annular flange structure 4212 includes an annular groove G 22 , annular groove G 22 Used to embed the sealing ring S2, along the first direction of the annular groove G 22 The size of the plug housing 421 is smaller than the size of the sealing ring S2. Thus, during the assembly of the plug housing 421 and the socket housing 411, the sealing ring S2 is compressed along the first direction to seal the gap between the plug housing 421 and the brake assembly housing 310, thereby improving the sealing effect of the brake assembly 30.

[0136] In some embodiments, Figures 8 to 10 As shown, the annular flange structure 4212 includes a plurality of through holes T penetrating along the first direction. 23 Each through hole T of the annular flange structure 4212 23 The fastener 430 is used to embed the fastener 430, and the fastener 430 is used to fix the plug housing 421 and the brake assembly housing 310. In this way, the fastener 430 passes through each through hole T of the annular flange structure 4212. 23 The plug outer housing 421 and the brake assembly housing 310 can be fixed.

[0137] By way of example, the fasteners 430 include screws, bolts, studs, and the like.

[0138] In some embodiments, the size of another housing of the socket housing 411 along the first direction is smaller than or equal to the plug mounting hole T 22 The size of the other housing of the socket housing 411 along the second direction is equal to the plug mounting hole T 22 The size of the other housing of the socket housing 411 along the third direction is equal to the plug mounting hole T 22 In this way, the other housing can be completely accommodated in the plug mounting hole T of the plug outer housing 421. 22 In this way, the connector 40 is prevented from being affected by the harsh environment of the wheel end.

[0139] In some embodiments, the size of the plug inner housing 422 along the second direction is equal to the size of the cavity of the socket housing 411, and the size of the plug inner housing 422 along the third direction is equal to the size of the cavity of the socket housing 411. In this way, there is almost no gap between the plug inner housing 422 and the inner cylinder wall of the socket housing 411, which simplifies the assembly process between the plug inner housing 422 and the socket housing 411.

[0140] like Figure 8 and Fig. 9 As shown, the outer wall of the plug inner housing 422 includes an annular groove G 23 , an annular groove G 23 The seal ring S3 is used to be embedded, and the size of the seal ring S3 along the second direction is larger than the size of the cavity of the socket housing 411, and the size of the seal ring S3 along the third direction is larger than the size of the cavity of the socket housing 411. In this way, the seal ring S3 and the cavity of the socket housing 411 are interference fit, so that the seal ring S3 can seal the gap between the socket housing 411 and the plug inner housing 422, thereby improving the sealing effect of the brake assembly 30.

[0141] In some embodiments, Figure 8 and Fig. 9 As shown, the outer wall of the plug inner housing 422 includes another annular groove G 24 , another annular groove G 24 Used to embed the sealing ring S4, the size of the sealing ring S4 along the second direction is larger than the plug installation hole T 22 The size of the sealing ring S4 along the third direction is larger than the plug mounting hole T 22 Thus, the plug mounting hole T of the sealing ring S3 and the plug housing 421 is 22 It is an interference fit, so that the sealing ring S4 can seal the gap between the plug outer shell 421 and the plug inner shell 422, thereby improving the sealing effect of the brake assembly 30.

[0142] like Figure 8 and Fig. 9 As shown, the plug 420 further includes a plurality of plug terminals 423, a plurality of cables 424 and a sealing member 425. Each plug terminal 423 passes through and is fixed to the middle partition of the plug inner housing 422 along the first direction. The middle partition and the sealing member 425 are arranged along the first direction. The sealing member 425 is arranged on the side of the middle partition away from the socket housing 411. The sealing member 425 is used to be embedded in the plug mounting hole T 22Each cable 424 passes through and is fixed to the sealing member 425 along the first direction, one end of each cable 424 is used to electrically connect to a plug terminal 423, and the other end of each cable 424 is used to electrically connect to a battery terminal or a controller terminal. In this way, the sealing member 425 can not only fix multiple cables 424, but also improve the stability of the connection between the cables 424 and the plug terminals 423.

[0143] In some embodiments, the size of each plug terminal 423 along the first direction is equal, so that not only the processing technology of the plug terminal 423 is simplified, but also the flow capacity of each plug terminal 423 is guaranteed to be the same.

[0144] In some embodiments, the plurality of plug terminals 423 are arranged in an array, and there is a gap between two adjacent plug terminals 423. In this way, the risk of short circuit between the plug terminals 423 can be avoided, thereby improving the safety of the connector 40.

[0145] In some embodiments, the size of the sealing member 425 along the second direction is larger than the plug installation hole T 22 The size of the sealing member 425 along the third direction is larger than the plug mounting hole T 22 Thus, the sealing member 425 and the plug mounting hole T 22 The sealing member 425 is an interference fit, so that the cable 424 and the plug installation hole T 22 The gap between the brake assembly 30 is improved.

[0146] In some embodiments, Figure 8 and Fig. 9 As shown, the sealing body 425 includes an end surface facing the plug inner housing 422, and an end surface of the sealing body 425 includes a protrusion P2. The protrusion P2 on the end surface of the sealing body 425 is used to be embedded in the plug mounting hole T 22 The size of the protrusion P2 on one end surface of the sealing body 425 along the second direction is greater than or equal to the plug installation hole T 22 The size of the protrusion P2 on one end surface of the sealing body 425 along the third direction is greater than or equal to the plug mounting hole T 22 The size of the sealing body 425 is smaller than that of the sealing body 425. In this way, the protrusion P2 on one end surface of the sealing body 425 is aligned with the plug mounting hole T 22 It is a transition fit or an interference fit, so that hot air can be prevented from entering the interior of the socket housing 411 along the gap between the sealing body 425 and the plug inner housing 422 and being rapidly cooled to produce condensation.

[0147] In some embodiments, the plug 420 further includes a plurality of annular protective members, one end of each annular protective member of the plug 420 is fixedly connected to the other end surface 4213 of the plug outer shell 421, each annular protective member of the plug 420 is used to wrap a cable 424, the size of each annular protective member of the plug 420 along the first direction is smaller than the size of the cable 424 wrapped by each annular protective member of the plug 420, and the other side surface 4213 is arranged opposite to the one side surface 4211 along the first direction. During the movement of the electric vehicle, each annular protective member of the plug 420 can prevent the plug installation hole T near the plug outer shell 421 from being moved. 22 The stress of the cable 424 is concentrated at the position, so that the cable 424 breaks. Thus, the service life of the brake assembly 30 is improved.

[0148] The outer circumferential surface of each annular protective member of the plug 420 includes two groups of grooves, which are arranged at intervals along the second direction or the third direction, and the distances between the two groups of grooves and the other side surface along the first direction are not equal. In this way, each annular protective member of the plug 420 can produce elastic deformation in different directions as the cable 424 is bent in different directions, thereby preventing the force concentration of each annular protective member of the plug 420 from being damaged, thereby losing the protective function of the cable 424.

[0149] In some embodiments, each group of grooves includes at least one groove, and the grooves of each group of grooves are arranged at intervals along the first direction. The bending positions of the cable 424 along the first direction are different, and the positions where each annular protective member of the plug 420 is elastically deformed along with the bending of the cable 424 along the first direction are also different, thereby preventing the force concentration of each annular protective member of the plug 420 from being damaged, thereby losing the protective function of the cable 424.

[0150] like Fig. 9 As shown, when the plug inner housing 422 is inserted into the socket housing 411, the plug terminal 423 and the socket terminal 412 are arranged in abutment with each other along the first direction. In this way, the circuit board 320 of the brake assembly 30 and the battery or controller are connected.

[0151] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A brake assembly, characterized in that: The brake assembly comprises: A connector, the connector comprising a plug outer shell, a cylindrical plug inner shell and a cylindrical socket shell, one side of the plug outer shell comprising a plug mounting hole penetrating along a first direction, the plug mounting hole being used to accommodate the socket shell and the plug inner shell, one end of the plug inner shell being used to be embedded in the plug mounting hole, and the other end of the plug inner shell being used to be embedded in the socket shell; A brake assembly housing, wherein a side plate of the brake assembly housing comprises a socket mounting hole penetrating along the first direction, and the socket mounting hole is used to be embedded in the socket housing.

2. The brake assembly according to claim 1, characterized in that: The outer cylinder wall of the socket housing includes an annular groove, which is used to embed a sealing ring. The size of the sealing ring along the second direction is larger than the size of the socket mounting hole, and the size of the sealing ring along the third direction is larger than the size of the socket mounting hole.

3. The brake assembly according to claim 1, characterized in that: The socket housing comprises two connected housings, wherein: The size of one of the two shells along the second direction is smaller than or equal to the size of the socket mounting hole, and the size of the one of the two shells along the third direction is smaller than or equal to the size of the socket mounting hole; The size of the other of the two shells along the second direction is larger than the size of the socket mounting hole, and the size of the other of the two shells along the third direction is larger than the size of the socket mounting hole.

4. The brake assembly according to claim 3, characterized in that: The size of the other shell of the two shells along the first direction is less than or equal to the size of the plug mounting hole, the size of the other shell of the two shells along the second direction is equal to the size of the plug mounting hole, and the size of the other shell of the two shells along the third direction is equal to the size of the plug mounting hole.

5. The brake assembly according to claim 3, characterized in that: The socket mounting hole includes two hole walls arranged opposite to each other along the second direction, each of the hole walls includes a protrusion, and the interval between the two protrusions of the two hole walls along the second direction is equal to the size of the one of the two shells.

6. The brake assembly according to claim 1, characterized in that: The outer cylindrical wall of the plug inner shell includes an annular groove, which is used to embed another sealing ring. The size of the other sealing ring along the second direction is larger than the size of the cavity of the socket shell, and the size of the other sealing ring along the third direction is larger than the size of the cavity of the socket shell.

7. The brake assembly according to claim 1, characterized in that: The outer cylinder wall of the plug shell includes an annular flange structure, and one side of the annular flange structure includes an annular groove. The annular groove is used to embed another sealing ring. The size of the annular groove along the first direction is smaller than the size of the another sealing ring.

8. The brake assembly according to claim 7, characterized in that: The annular flange structure includes a plurality of through holes penetrating along the first direction, each of the through holes is used to embed a fastener, and the fastener is used to fix the plug outer shell and the brake assembly shell.

9. The brake assembly according to claim 1, characterized in that: The brake assembly further includes a plurality of plug terminals, a plurality of cables and a wire sealing member, each of the plug terminals passes through and is fixed to a partition of the plug inner housing along the first direction, the partition and the wire sealing member are arranged along the first direction, and the wire sealing member is used to be embedded in the plug mounting hole, wherein: Each of the cables passes through and is fixed to the sealing member along the first direction, one end of each of the cables is used to electrically connect to one of the plug terminals, and the other end of each of the cables is used to electrically connect to a terminal of a battery or a terminal of a controller, and the controller is used to provide a braking signal.

10. The brake assembly according to claim 9, characterized in that: The size of the wire sealing member along the second direction is larger than the size of the plug installation hole, and the size of the wire sealing member along the third direction is larger than the size of the plug installation hole.

11. The brake assembly according to claim 9, characterized in that: The brake assembly also includes a plurality of annular protective members, one end of each of the annular protective members being fixedly connected to the other side surface of the plug outer shell, each of the annular protective members being used to wrap one of the cables, a size of each of the annular protective members along the first direction being smaller than a size of the cable wrapped by each of the annular protective members, and the other side surface of the plug outer shell being arranged opposite to the one side surface of the plug outer shell along the first direction.

12. The brake assembly according to claim 11, characterized in that: The outer peripheral surface of each annular protective member includes two groups of grooves, and the two groups of grooves of each annular protective member are arranged at intervals along the second direction or the third direction. The distances between the two groups of grooves and the other side surface along the first direction are not equal.

13. The brake assembly according to claim 12, characterized in that: Each group of the grooves on the outer circumferential surface of each of the annular protective members includes at least one groove, and a plurality of grooves in each group of the grooves are arranged at intervals along the first direction.

14. The brake assembly according to any one of claims 1 to 13, characterized in that: The size of the plug inner housing along the second direction is equal to the size of the cavity of the socket housing, and the size of the plug inner housing along the third direction is equal to the size of the cavity of the socket housing.

15. An electric vehicle, characterized in that: The electric vehicle comprises a wheel and a brake assembly as claimed in any one of claims 1 to 14, wherein the brake assembly further comprises a motor and a brake mechanism, wherein the brake mechanism is drivingly connected to the motor, and the motor is used to drive the brake mechanism to brake the wheel.

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