Brake assembly, driving assembly and vehicle

Abstract

The utility model discloses a brake assembly, a driving assembly and a vehicle, and relates to the technical field of driving systems.The brake assembly comprises two brake calipers and an executing mechanism; the two brake calipers are used for being arranged corresponding to the two opposite brake discs correspondingly. The two brake calipers are both in transmission connection with the executing mechanism, and the executing mechanism drives the two brake calipers to move in the same direction or in the opposite directions. When the two brake calipers move in the opposite directions, the two brake calipers abut against the two brake discs correspondingly, so that the two brake discs are braked. According to the technical scheme provided by the utility model, the use number of executing mechanisms can be reduced, so that the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of drive systems, and in particular to a brake component, a drive assembly and a vehicle. Background Art

[0002] In the application of new energy vehicles, the conventional EMB (electronic mechanical brake) solution has a brake caliper installed on each wheel, and each brake caliper is equipped with a set of actuators, requiring at least four sets of actuators in total, which is relatively costly. Utility Model Content

[0003] The main purpose of the utility model is to provide a brake assembly, a drive assembly and a vehicle, aiming to reduce the number of actuators used to reduce costs.

[0004] To achieve the above objectives, the present invention provides a brake assembly comprising:

[0005] Two brake calipers, the two brake calipers are respectively used to correspond to two opposite brake discs;

[0006] An actuator, wherein the two brake calipers are both transmission-connected to the actuator, and the actuator drives the two brake calipers to move toward each other or in opposite directions;

[0007] When the two brake calipers move in opposite directions, the two brake calipers respectively abut against the two brake discs to brake the two brake discs.

[0008] In one embodiment, the actuator comprises:

[0009] Drive mechanism;

[0010] A toggle mechanism is connected to the drive mechanism in a transmission manner. The drive mechanism drives the toggle mechanism to move. The toggle mechanism includes two free ends. The two brake calipers are respectively hinged to the two free ends.

[0011] In one embodiment, the toggle mechanism comprises:

[0012] a first connecting rod, the first connecting rod being transmission-connected to the driving mechanism;

[0013] a second connecting rod, one end of the second connecting rod being hinged to one end of the first connecting rod, and the other end of the second connecting rod being hinged to the brake caliper;

[0014] A third connecting rod, one end of the third connecting rod is hinged to the other end of the first connecting rod, and the other end of the third connecting rod is hinged to the other brake caliper.

[0015] In one embodiment, the driving mechanism comprises:

[0016] Brake motor;

[0017] A screw rod, which is transmission-connected to the brake motor and extends vertically, and the brake motor drives the screw rod to rotate; the first connecting rod is sleeved on the screw rod and connected to the screw rod;

[0018] When the screw rod rotates, it drives the first connecting rod to move along the length direction of the screw rod, thereby driving the second connecting rod and the third connecting rod to retract or open, so that the two brake calipers move towards each other or in opposite directions.

[0019] In one embodiment, the middle portion of the first connecting rod is sleeved on the screw rod.

[0020] To achieve the above objectives, the present invention further provides a drive assembly, comprising:

[0021] Two drive units, each of the drive units comprising:

[0022] two wheels;

[0023] Two drive assemblies, the output shaft of each drive assembly is connected to one of the wheels, and each drive assembly is connected to a brake disc;

[0024] As in the brake assembly described above, the two brake calipers of the brake assembly are respectively arranged corresponding to the two brake discs; when the two brake calipers move in opposite directions, the two brake calipers respectively abut against the two brake discs to brake the two brake discs.

[0025] In one embodiment, the drive assembly comprises:

[0026] Drive motor;

[0027] A reducer is connected to the drive motor in a transmission manner, and the wheel is connected to the output shaft of the reducer; the brake disc is connected to one of the output shaft of the drive motor, the output shaft of the reducer, and the intermediate shaft of the reducer.

[0028] In one embodiment, the reducer is a one-stage or at least two-stage reducer; when the reducer is a two-stage reducer, the brake disc is connected to the intermediate shaft of the two-stage reducer.

[0029] To achieve the above objectives, the present invention also provides a vehicle comprising the drive assembly as described above.

[0030] The technical solution of this utility model utilizes a transmission connection between two brake calipers and a single actuator, thereby simultaneously driving the two brake calipers to move toward or in opposite directions. When the actuator drives the two brake calipers in opposite directions, the two brake calipers can respectively abut against two opposing brake discs to brake the two discs. Therefore, the brake assembly proposed in this solution can use a single set of actuators for the two brake calipers, thereby reducing the number of actuators used and lowering costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0032] Figure 1 A schematic structural diagram of an embodiment of a brake assembly provided by the present utility model;

[0033] Figure 2 This is a structural diagram of an embodiment of a drive unit provided by the present utility model.

[0034] Description of Figure Numbers:

[0035] Label name Label name 100 drive unit 1221 First connecting rod 10 brake components 1222 Second connecting rod 11 brake calipers 1223 Third link 12 Actuator 20 wheel 121 Drive mechanism 30 Drive components 1211 brake motor 31 brake disc 1212 Screw 32 drive motor 122 toggle mechanism 33 reducer

[0036] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0040] In the application of new energy vehicles, the conventional EMB (electronic mechanical brake) solution has a brake caliper installed on each wheel, and each brake caliper is equipped with a set of actuators, requiring at least four sets of actuators in total, which is relatively costly.

[0041] Based on the above problems, the present invention proposes a brake assembly 10, which aims to reduce the number of actuators 12 used to reduce costs. The brake assembly 10 is applied to a drive assembly, which includes two drive units 100, each of which includes two wheels 20, two drive assemblies 30 and a set of brake assemblies 10. The output shaft of each drive assembly 30 is connected to a wheel 20, and each drive assembly 30 is connected to a brake disc 31. The two brake calipers 11 of the brake assembly 10 are respectively arranged corresponding to the two brake discs 31 of the drive unit 100. Therefore, when the actuator 12 drives the two brake calipers 11 to move in opposite directions, the two brake calipers 11 can respectively abut against the two brake discs 31 to achieve braking of the two brake discs 31. Therefore, the drive assembly only needs to use two sets of actuators 12 to achieve braking of the four brake discs 31, and then achieve braking of the four wheels 20, reducing the number of actuators 12 used. The structure of the brake assembly 10 will be described below in the form of an embodiment:

[0042] See also Figure 1 、 Figure 2In one embodiment of the present invention, the brake assembly 10 includes two brake calipers 11 and an actuator 12; the two brake calipers 11 are respectively used to correspond to two opposite brake discs 31; the two brake calipers 11 are both transmission-connected to the actuator 12, and the actuator 12 drives the two brake calipers 11 to move toward each other or in opposite directions; wherein, when the two brake calipers 11 move in opposite directions, the two brake calipers 11 respectively abut against the two brake discs 31 to brake the two brake discs 31.

[0043] The technical solution of the present invention utilizes a transmission connection between two brake calipers 11 and a single actuator 12, thereby simultaneously driving the two brake calipers 11 to move toward or in opposite directions. When the actuator 12 drives the two brake calipers 11 in opposite directions, the two brake calipers 11 can respectively abut against two opposing brake discs 31 to brake the two brake discs 31. Therefore, the brake assembly 10 proposed in this solution allows the two brake calipers 11 to share a single set of actuators 12, thereby reducing the number of actuators 12 used and lowering costs.

[0044] In this embodiment, the two brake discs 31 corresponding to the two brake calipers 11 of the same brake assembly 10 can be the two brake discs 31 corresponding to the two front wheels 20 respectively, or the two brake discs 31 corresponding to the two rear wheels 20 respectively.

[0045] In actual application, the actuator 12 can be a structure in which the motor screw 1212 cooperates with the connecting rod mechanism, a structure in which a linear motor cooperates with the connecting rod mechanism, a structure in which a motor cooperates with a gear rack, or a structure in which a motor cooperates with a pulley belt.

[0046] In one embodiment, when the actuator 12 is a structure in which a motor screw 1212 cooperates with a connecting rod mechanism, or a structure in which a linear motor cooperates with a connecting rod mechanism, the two brake calipers 11 are respectively connected to the two free ends of the connecting rod mechanism. Under the drive of the motor screw 1212 or the linear motor, the connecting rod mechanism can be driven to move, thereby driving the two brake calipers 11 to move toward or in opposite directions.

[0047] In another embodiment, when the actuator 12 is a structure in which a motor and a gear rack are matched, the gear sleeve is arranged on the output shaft of the motor, and there are two racks, which are respectively engaged with the two sides of the gear, and the two brake calipers 11 are respectively connected to the two racks. When the motor drives the gear to rotate, it can drive the two racks to move, and the movement directions of the two racks are opposite, thereby driving the two brake calipers 11 to move toward each other or in opposite directions.

[0048] In another embodiment, when the actuator 12 is a structure in which a motor and a belt are combined, the driving wheel is sleeved on the output shaft of the motor, the conveyor belt is sleeved on the driving wheel and the driven wheel, and the two brake calipers 11 are respectively connected to two sections of the conveyor belt with opposite movement directions in the transmission belt. When the motor drives the driving wheel to rotate, it can drive the conveyor belt and the driven wheel to rotate, and then drive the two brake calipers 11 to move toward or in opposite directions.

[0049] See also Figure 1 In one embodiment of the present utility model, the actuator 12 includes a driving mechanism 121 and a toggle mechanism 122; the toggle mechanism 122 is transmission-connected to the driving mechanism 121, and the driving mechanism 121 drives the toggle mechanism 122 to move. The toggle mechanism 122 includes two free ends, and the two brake calipers 11 are respectively hinged to the two free ends.

[0050] In this arrangement, since the mechanical advantage of the toggle mechanism 122 can be close to infinity when it is close to the collinear position, the toggle mechanism 122 is used as the intermediate transmission member to drive the two brake calipers 11 to move through the toggle mechanism 122 under the drive of the driving mechanism 121. When the two brake calipers 11 are driven to move in opposite directions, infinite mechanical force can be applied to the two brake calipers 11, and then infinite braking force can be applied to the two brake discs 31, which can achieve a better braking effect on the brake discs 31.

[0051] See also Figure 1 In one embodiment of the present invention, the toggle mechanism 122 includes a first link 1221, a second link 1222 and a third link 1223; the first link 1221 is transmission-connected to the drive mechanism 121; one end of the second link 1222 is hinged to one end of the first link 1221, and the other end of the second link 1222 is hinged to a brake caliper 11; one end of the third link 1223 is hinged to the other end of the first link 1221, and the other end of the third link 1223 is hinged to another brake caliper 11.

[0052] With such a configuration, the driving mechanism 121 can drive the first link 1221 to move, and the movement of the first link 1221 can drive the second link 1222 and the third link 1223 to rotate relative to the first link 1221, thereby driving the two brake calipers 11 to move toward each other or in opposite directions, thereby improving the stability of driving the two brake calipers 11 to move.

[0053] See also Figure 1In one embodiment of the present utility model, the driving mechanism 121 includes a brake motor 1211 and a screw rod 1212; the screw rod 1212 is transmission-connected to the brake motor 1211 and extends vertically, and the brake motor 1211 drives the screw rod 1212 to rotate; the first connecting rod 1221 is sleeved on the screw rod 1212 and connected to the screw rod 1212; wherein, when the screw rod 1212 rotates, it drives the first connecting rod 1221 to move along the length direction of the screw rod 1212, so as to drive the second connecting rod 1222 and the third connecting rod 1223 to retract or open, so that the two brake calipers 11 move toward each other or in opposite directions.

[0054] With this arrangement, when the motor drives the screw rod 1212 to rotate forward, it can drive the first connecting rod 1221 upward, thereby driving the second connecting rod 1222 and the third connecting rod 1223 to retract, causing the two brake calipers 11 to move toward each other. When the motor drives the screw rod 1212 to rotate backward, it can drive the first connecting rod 1221 downward, thereby driving the second connecting rod 1222 and the third connecting rod 1223 to open, causing the two brake calipers 11 to move in opposite directions. In this way, under the action of the motor and the screw rod 1212, the displacement of the first connecting rod 1221 can be precisely controlled, and thus the braking effect of the two brake calipers 11 on the two brake discs 31 can be precisely controlled.

[0055] In actual application, the first connecting rod 1221 can be mounted on the screw rod 1212 at the middle position, at the end position, or at a position between the middle and the end.

[0056] See also Figure 1 In one embodiment of the present invention, the middle portion of the first connecting rod 1221 is sleeved on the screw rod 1212 .

[0057] Such an arrangement can improve the balance of the screw rod 1212 in driving the first connecting rod 1221 to rise and fall during rotation, so that the first connecting rod 1221 can rise and fall more smoothly.

[0058] In actual application, a connecting hole with an internal thread can be directly opened on the first connecting rod 1221, or a smooth connecting hole can be opened on the first connecting rod 1221 to install a nut in the connecting hole.

[0059] See also Figure 2 The present invention also proposes a drive assembly, which includes two drive units 100. Each drive unit 100 includes two wheels 20, two drive assemblies 30 and a brake assembly 10. The specific structure of the brake assembly 10 refers to the above embodiment. Since the present drive assembly adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0060] Among them, the output shaft of each drive assembly 30 is connected to a wheel 20, and each drive assembly 30 is connected to a brake disc 31; the two brake calipers 11 of the brake assembly 10 are respectively arranged corresponding to the two brake discs 31; when the two brake calipers 11 move in opposite directions, the two brake calipers 11 respectively abut against the two brake discs 31 to brake the two brake discs 31.

[0061] It can be understood that the drive assembly includes two drive units 100, that is, the drive assembly includes four wheels 20, four drive assemblies 30 and two sets of brake assemblies 10. Therefore, the drive assembly only needs to use two sets of actuators 12 to achieve braking of the four brake discs 31, and then achieve braking of the four wheels 20, reducing the number of actuators 12 used.

[0062] See also Figure 2 In one embodiment of the present invention, the drive assembly 30 includes a drive motor 32 and a reducer 33; the reducer 33 is transmission-connected to the drive motor 32, and the wheel 20 is connected to the output shaft of the reducer 33; the brake disc 31 is connected to one of the output shaft of the drive motor 32, the output shaft of the reducer 33, and the intermediate shaft of the reducer 33.

[0063] With such an arrangement, the rotational speed and torque of the wheel 20 can be precisely controlled with the cooperation of the drive motor 32 and the reducer 33, and by connecting the brake disc 31 to one of the output shaft of the drive motor 32, the output shaft of the reducer 33, and the intermediate shaft of the reducer 33, the brake disc 31 can be driven to rotate when the drive motor 32 is working, and when the brake caliper 11 brakes the brake disc 31, the drive motor 32 can be braked through the brake disc 31, thereby achieving braking of the wheel 20 and achieving the purpose of braking.

[0064] In actual application, the reducer 33 can be a single-stage reducer 33, or a two-stage or multi-stage reducer 33, and the specific size can be determined according to actual usage conditions.

[0065] See also Figure 2 In one embodiment of the present invention, when the reducer 33 is a two-stage reducer 33 , the brake disc 31 is connected to the intermediate shaft of the two-stage reducer 33 .

[0066] With this arrangement, the design of the two-stage reducer 33 can more accurately control the rotational speed and torque of the wheel 20 , and by connecting the brake disc 31 to the intermediate shaft of the two-stage reducer 33 , the installation of the brake disc 31 is more convenient.

[0067] It should be noted that the intermediate shaft of the two-stage reducer 33 refers to a rotating shaft that connects the first-stage reducer 33 and the second-stage reducer 33 .

[0068] The present utility model also proposes a vehicle, which includes a drive assembly. The specific structure of the drive assembly refers to the above-mentioned embodiments. Since this vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0069] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A brake assembly, characterized in that: include: Two brake calipers, the two brake calipers are respectively used to correspond to two opposite brake discs; An actuator, wherein the two brake calipers are both transmission-connected to the actuator, and the actuator drives the two brake calipers to move toward each other or in opposite directions; When the two brake calipers move in opposite directions, the two brake calipers respectively abut against the two brake discs to brake the two brake discs.

2. The brake assembly according to claim 1, wherein: The executive mechanism comprises: Drive mechanism; A toggle mechanism is connected to the drive mechanism in a transmission manner. The drive mechanism drives the toggle mechanism to move. The toggle mechanism includes two free ends. The two brake calipers are respectively hinged to the two free ends.

3. The brake assembly according to claim 2, wherein: The toggle mechanism comprises: a first connecting rod, the first connecting rod being transmission-connected to the driving mechanism; a second connecting rod, one end of the second connecting rod being hinged to one end of the first connecting rod, and the other end of the second connecting rod being hinged to the brake caliper; A third connecting rod, one end of the third connecting rod is hinged to the other end of the first connecting rod, and the other end of the third connecting rod is hinged to the other brake caliper.

4. The brake assembly according to claim 3, wherein: The driving mechanism comprises: Brake motor; A screw rod, which is transmission-connected to the brake motor and extends vertically, and the brake motor drives the screw rod to rotate; the first connecting rod is sleeved on the screw rod and connected to the screw rod; When the screw rod rotates, it drives the first connecting rod to move along the length direction of the screw rod, thereby driving the second connecting rod and the third connecting rod to retract or open, so that the two brake calipers move towards each other or in opposite directions.

5. The brake assembly according to claim 4, wherein: The middle portion of the first connecting rod is sleeved on the screw rod.

6. A drive assembly, characterized in that: include: Two drive units, each of the drive units comprising: two wheels; Two drive assemblies, the output shaft of each drive assembly is connected to one of the wheels, and each drive assembly is connected to a brake disc; The brake assembly according to any one of claims 1 to 5, wherein the two brake calipers of the brake assembly are respectively arranged corresponding to the two brake discs; when the two brake calipers move in opposite directions, the two brake calipers respectively abut against the two brake discs to brake the two brake discs.

7. The drive assembly according to claim 6, wherein: The drive assembly includes: Drive motor; A reducer is connected to the drive motor in a transmission manner, and the wheel is connected to the output shaft of the reducer; the brake disc is connected to one of the output shaft of the drive motor, the output shaft of the reducer, and the intermediate shaft of the reducer.

8. The brake assembly according to claim 7, wherein: The reducer is a one-stage reducer or at least a two-stage reducer; when the reducer is a two-stage reducer, the brake disc is connected to the intermediate shaft of the two-stage reducer.

9. A vehicle, characterized in that: Comprising a drive assembly as claimed in any one of claims 6 to 8.

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