Electric brake device

Abstract

The invention provides an electric brake device capable of improving workability, improving mountability on a vehicle and design of an outline, and sharing components in a pair of left and right wheels. In particular, the electric brake device is provided with a power supply connector or a sensor connector for supplying power to an electric motor and / or inputting a signal from a detection sensor, and is configured so as to be attachable to the vehicle body side as a pair of electric brake devices on the left and right wheels. The power supply connector or the sensor connector is configured so as to be able to be mounted on the vehicle body side in a regular arrangement. As a result, it is possible to improve workability, improve mountability on a vehicle and design of a profile, and share a component in a pair of left and right wheels.

Description

Technical Field

[0001] The present invention relates to an electric brake device used for braking a vehicle such as an automobile. Background Art

[0002] Patent document 1 discloses an electric brake device, which inputs power supply to the motor, detection signals from detection sensors corresponding to the driver's requirements and various detection sensors for detecting various conditions required for braking, etc. to a control board arranged in a gear housing via a connector, and controls the drive of the motor through the control board.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: (Japanese) Patent Publication No. 2022-28979 Summary of the invention

[0006] Technical problem to be solved by the invention

[0007] In the electric brake device of the above-mentioned patent document 1, there are a plurality of connectors having the above-mentioned functions, but the detailed positional relationship of each connector is unclear. Since the connector shapes of each of these connectors are different, when the same components (such as a housing having a connector integrally) are set in each wheel in the left and right pair of wheels, the positions of each connector on the left and right sides of the vehicle body are different, so there is a concern that the workability related to the connection to each connector will deteriorate. In addition, since the positions of each connector are different on the left and right sides of the vehicle body, it is necessary to design a profile that can be mounted on any wheel in the left and right pair of wheels. In addition, in the case where the profiles of the left and right pairs of wheels are designed separately in order to maximize the use of the mounting space mounted on the vehicle, inherent components are required in the left and right pairs of wheels, so there is a concern that it will lead to high costs.

[0008] Therefore, one object of the present invention is to provide an electric brake device that can improve workability, improve mountability on a vehicle and improve contour design, and that can share components between a pair of left and right wheels.

[0009] Technical solutions for solving technical problems

[0010] As a technical solution for solving the above technical problems, the electric brake device of the present invention comprises:

[0011] a brake mechanism that presses the brake member toward the braked member;

[0012] an electric motor that drives the brake mechanism;

[0013] A plurality of connectors for supplying power to the motor or inputting a signal from a detection sensor;

[0014] The electric brake device is configured to be mountable on the vehicle body side as a pair of electric brake devices on the left and right wheels.

[0015] The connector portions are configured to be attachable to the vehicle body in a regularly arranged manner.

[0016] According to the electric brake device of one embodiment of the present invention, workability can be improved, and the mountability on the vehicle and the design of the outline can be improved, and components can be shared by a pair of left and right wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a perspective view of the electric brake device according to the present embodiment.

[0018] Figure 2 It is a partial cross-sectional view of the electric brake device according to the present embodiment.

[0019] Figure 3 It is a schematic diagram showing a state where the electric brake device according to the present embodiment is mounted on a vehicle body.

[0020] Figure 4 It is a layout diagram showing the mounting positions of a pair of power supply connectors and a sensor connector on the other end surface of the control unit case in the electric brake device of the present embodiment.

[0021] Figure 5 It is a layout diagram showing the mounting positions of a pair of power supply connectors and a sensor connector of the electric brake device according to the present embodiment with respect to the vehicle body.

[0022] Figure 6 It means Figure 5 Different layout diagrams showing the mounting positions of a pair of power supply connectors and sensor connectors relative to the vehicle body.

[0023] Figure 7 It is a layout diagram showing the mounting positions of a pair of power supply connectors and a pair of sensor connectors on the other end surface of the control unit case.

[0024] Figure 8 It means Figure 7 Differently, this figure shows the arrangement of the mounting positions of a pair of power supply connectors and a pair of sensor connectors on the other end surface of the control unit housing.

[0025] Fig. 9 Another embodiment of the mounting method of the control unit housing and the motor gear housing is shown in the figure showing a state where the control unit housing and the motor gear housing are rotatable around the central axis of the motor.

[0026] Fig.10 It is a perspective view showing another embodiment of the mounting positions of the control unit housing and the motor gear housing with respect to the cylinder unit. DETAILED DESCRIPTION

[0027] The following is based on Figures 1 to 10 This embodiment will be described in detail.

[0028] like Figure 1 and Figure 2 As shown, the electric brake device 1 of this embodiment is an electric disc brake that generates braking force by driving an electric motor 26, and is used as a brake device during normal driving of a vehicle. It should be noted that in the following description, the inside of the vehicle is referred to as the inside, and the outside of the vehicle is referred to as the outside. In addition, sometimes it is appropriate to refer to the inside as one end side and the outside as the other end side. The electric brake device 1 of this embodiment includes: a pair of inner brake pads 2 and outer brake pads 3, and the pair of inner brake pads 2 and outer brake pads 3 are separated by a companion axle 82 (refer to Figure 3 ) is rotated by the disc rotor D and is arranged on both sides of the axial direction; the brake caliper 4. Figure 3 As shown in FIG. 1 , an electric brake device 1 is provided corresponding to the disc rotor D of each wheel 83. Figure 1 In the figure, the disc rotor D is omitted.

[0029] The electric brake device 1 of this embodiment is configured as a brake caliper floating type. A pair of inner brake pads 2 and outer brake pads 3, and a brake caliper 4 are supported by a planetary carrier 5 fixed to a non-rotating portion such as a steering knuckle (not shown) of a vehicle so as to be movable in the axial direction of the disc rotor D relative to the planetary carrier 5. The braking components correspond to the pair of inner brake pads 2 and outer brake pads 3, and the braked component corresponds to the disc rotor D.

[0030] Reference Figure 1 and Figure 2 The planetary carrier 5 includes: a pair of pin connection parts 8, 8, which respectively connect the sliding pins 38, 38 described later; inner and outer support parts 9, 10, which are integrally connected to the pair of pin connection parts 8, 8 and independently support the inner brake pad 2 and the outer brake pad 3 respectively. The pair of pin connection parts 8, 8 are arranged at intervals along the rotation direction of the disc rotor D. Each pin connection part 8 is integrally connected to the inner arm part 13 of the inner support part 9 described later and the outer arm part 20 of the outer support part 10 described later, and is protruded on the side of each pin sliding part 31 described later. Each pin connection part 8 is protruded from a position between the inner arm part 13 of the inner support part 9 and the outer arm part 20 of the outer support part 10.

[0031] The inner support portion 9 is arranged at intervals along the rotation direction of the disk rotor D, and is composed of a pair of inner arm portions 13, 13 extending in a direction orthogonal to the axial direction of a slide pin 38 described later, and an inner beam portion 14 connecting the ends of the pair of inner arm portions 13, 13 on the side opposite to the pin connection portion 8. The inner brake pad 2 is supported on the inner side of the pair of inner arm portions 13, 13 so as to be movably supported along the axial direction of the disk rotor D. A pair of fixing portions 16, 16 for fixing the planetary carrier 5 to a non-rotating portion of the vehicle are integrally connected to both ends of the inner beam portion 14 in the rotation direction of the disk rotor D.

[0032] The outer support portion 10 is composed of a pair of outer arm portions 20, 20, which are arranged outside the pair of inner arm portions 13, 13 of the inner support portion 9 at a distance, and an outer beam portion 21, which connects the ends of the pair of outer arm portions 20, 20 on the side opposite to the pin connection portion 8. The outer brake pad 3 is supported on the inner side of the pair of outer arm portions 20, 20 so as to be movably supported in the axial direction of the disc rotor D. In addition, the planetary carrier 5 is fixed to the non-rotating part of the vehicle via a pair of fixing portions 16, 16 of the inner support portion 9.

[0033] Reference Figure 1 and Figure 2 The brake caliper 4 includes a brake caliper body 25 as the main body of the brake caliper 4, an electric motor 26, and a brake mechanism 28. The brake caliper body 25 is integrally formed with a cylindrical cylinder body portion 29, a pair of claw portions 30, 30, and a pair of pin sliding portions 31, 31. The cylindrical cylinder body portion 29 is arranged on the base end side opposite to the inner brake pad 2 and is open opposite to the inner brake pad 2; the pair of claw portions 30, 30 extend outward from the cylinder body portion 29 across the disc rotor D and are arranged on the front end side opposite to the outer brake pad 3; the pair of pin sliding portions 31, 31 are protruded from the cylinder body portion 29 at intervals along the rotation direction of the disc rotor D. It should be noted that in Figure 2 In the figure, in the cylinder portion 29, for easy understanding, illustration of fine planar shapes such as a protrusion extending from a pair of claws 30, 30 toward one end side is omitted.

[0034] The cylinder body 29 is formed with a substantially circular cylinder hole 34 opened from the other end surface thereof. The piston 36 is inserted into the cylinder hole 34 in a manner that it cannot rotate relative to the cylinder body 29 but can move in the axial direction. The piston 36 is, for example, in a cup shape consisting of a cylindrical portion and a bottom, and its axial direction coincides with the axial direction of the disc rotor D and the sliding pin 38. Furthermore, during braking, the driving force from the motor 26 is transmitted to the piston 36 in the cylinder body 29 via the brake mechanism 28, and the piston 36 moves forward toward the disc rotor D and its bottom presses the inner brake pad 2. On the other hand, during brake release, the driving force from the motor 26 is transmitted to the piston 36 via the brake mechanism 28, and the piston 36 retreats from the disc rotor D.

[0035] A pair of pin sliding portions 31, 31 are integrally provided on the cylinder portion 29 of the caliper body 25 so as to protrude outward along the rotation direction of the disc rotor D. Each pin sliding portion 31 extends along the axial direction of the disc rotor D. Each pin sliding portion 31 is formed into a bottomed cylindrical shape with the other end surface open. A pair of sliding pins 38, 38 are inserted into the inside of the pair of pin sliding portions 31, 31 so as to slide freely along the axial direction. Each pin sliding portion 31, 31 is arranged at a position closer to one end side than the pair of pin connecting portions 8, 8 of the planetary carrier 5. The sliding pin 38 extends along the axial direction of the disc rotor D. The sliding pin 38 is formed into a slender circular cross-sectional shape.

[0036] Furthermore, a pair of sliding pins 38, 38 are inserted into each pin sliding portion 31, 31 provided in the cylinder body portion 29 from the other end side so as to be slidable in the axial direction. The pair of sliding pins 38, 38 are connected to the corresponding pin connecting portions 8, 8 of the planetary carrier 5. Pin covers 39, 39 having a bellows portion that can be extended and retracted are provided so as to cover each sliding pin 38, 38. As a result, by sliding of the pair of sliding pins 38, 38 in each pin sliding portion 31, 31 provided in the cylinder body portion 29, the caliper body 25 (brake caliper 4) can be supported so as to be slidable in the axial direction of the disc rotor D relative to the planetary carrier 5.

[0037] The motor 26 is electrically connected to a control unit (ECU) 42 for controlling its rotation. The outer shape of the motor 26 is formed into a circular shape. The motor 26 is arranged on one end side from the bottom of the cylinder body 29. The motor 26 is housed in a cylindrical motor gear housing 44. The motor 26 is arranged in the motor gear housing 44 and on one end side thereof. Specifically, the motor 26 is arranged across the motor gear housing 44 and the control unit housing 47 described later. The axial direction of the rotating shaft 27 of the motor 26 coincides with the axial direction of the disc rotor D. The rotating shaft 27 of the motor 26 is arranged approximately concentrically with the cylinder hole 34 of the cylinder body 29. In other words, the motor gear housing 44 and the cylinder hole 34 of the cylinder body 29 are arranged approximately concentrically.

[0038] During braking during normal driving, the control unit 42 controls the rotation (rotation direction, rotation speed, etc.) of the motor 26 based on various detection signals, such as detection signals from detection sensors corresponding to the driver's request and detection sensors for detecting various conditions required for braking, detection signals from wheel speed detection sensors for detecting wheel speeds, detection signals from a rotation angle detection mechanism (not shown) for detecting the rotation angle of the rotating shaft 27 of the motor 26, and detection signals from a thrust sensor (not shown) for thrust (pressing force) of the inner and outer brake pads 2 and 3 on the disc rotor D. The control unit 42 is arranged on one end side from the motor 26.

[0039] The control unit 42 is accommodated in one end side of the control unit housing 47. The control unit housing 47 is connected to the motor gear housing 44 in one piece. It should be noted that the component that integrates the control unit housing 47 with the motor gear housing 44 is equivalent to the housing. The control unit housing 47 is configured to protrude toward the opposite side of the inner side and outer side support parts 9, 10 and the inner side and outer side beam parts 14, 21 side than the motor gear housing 44. Thus, in the control unit housing 47, the other end surface 47A is exposed on the opposite side of the inner side and outer side support parts 9, 10 and the inner side and outer side beam parts 14, 21 side than the motor gear housing 44. The opening on one end side of the control unit housing 47 is closed by the cover member 48.

[0040] Reference Figure 2 The brake mechanism 28 is provided on the brake caliper body 25 and includes a speed reduction mechanism 60 and a rotation-to-direct motion conversion mechanism 61, and transmits the driving force from the motor 26 to the piston 36 in the cylinder 29 of the brake caliper body 25 via the speed reduction mechanism 60 and the rotation-to-direct motion conversion mechanism 61. Specifically, the brake mechanism 28 is provided on the brake caliper body 25 and includes: the speed reduction mechanism 60, which amplifies the rotation torque from the motor 26; and the rotation-to-direct motion conversion mechanism 61, which converts the rotational motion from the speed reduction mechanism 60 into a linear motion and applies a thrust to the piston 36.

[0041] The rotation of the rotating shaft 27 from the motor 26 is transmitted to the speed reduction mechanism 60. The speed reduction mechanism 60 increases the rotation torque from the motor 26 and transmits it to the rotation-to-direct motion conversion mechanism 61. The speed reduction mechanism 60 adopts a planetary gear speed reduction mechanism or the like. The speed reduction mechanism 60 is housed in the motor gear housing 44 and on its other end side (cylinder body 29 side). The rotation-to-direct motion conversion mechanism 61 is arranged between the bottom of the cylinder body 29 and the piston 36 in the cylinder hole 34 of the cylinder body 29. The rotation-to-direct motion conversion mechanism 61 converts the rotational motion from the speed reduction mechanism 60 into a linear motion and applies a thrust to the piston 36. The rotation-to-direct motion conversion mechanism 61 adopts a ball screw mechanism, a ball ramp mechanism, or the like.

[0042] Reference Figure 1 , Figure 2 and Figure 4 A pair of power supply connectors 55A and 55B for supplying power to the motor 26 and a sensor connector 57 for inputting detection signals from a detection sensor corresponding to the driver's request, a detection sensor for detecting various conditions required for braking, a vehicle speed detection sensor, etc. are respectively connected to the control unit 42. Both the pair of power supply connectors 55A and 55B are mainly used to supply power to the motor 26. In short, the pair of power supply connectors 55A and 55B have the same outer shape and have the same function. The front view outer shape of the pair of power supply connectors 55A and 55B is formed into a substantially square shape.

[0043] On the other hand, the sensor connector 57 is formed to be slightly smaller than the outer area of ​​the pair of power supply connectors 55A, 55B, and has a generally rectangular shape when viewed from the front. In short, the outer shapes of the pair of power supply connectors 55A, 55B and the sensor connector 57 are different. The pair of power supply connectors 55A, 55B and the sensor connector 57 are protrudingly arranged on the control unit housing 47 and from the other end surface 47A toward the other end side, and the other end surface 47A is a portion protruding from the motor gear housing 44. In other words, the pair of power supply connectors 55A, 55B and the sensor connector 57 are protrudingly arranged from the other end surface 47A of the control unit housing 47 toward the inner and outer brake pads 2, 3 along the axial direction of the rotating shaft 27 of the motor 26.

[0044] The pair of power supply connectors 55A, 55B and the sensor connector 57 are arranged in a row. Specifically, the pair of power supply connectors 55A, 55B and the sensor connector 57 are arranged in a row along the same direction as the extending direction of the inner and outer beams 14, 21 of the inner and outer support parts 9, 10. In particular, referring to Figure 4 , the sensor connector 57 is arranged between the pair of power supply connectors 55A, 55B at the center thereof. In other words, the pair of power supply connectors 55A, 55B are arranged at line-symmetrical positions with respect to the reference line L1 that passes through the center O2 of the motor 26 and extends in the radial direction. Specifically, the reference line L1 passes through the center O2 of the motor 26 and extends in the same direction as the extending direction of the pair of inner arm portions 13, 13 of the inner support portion 9 and the pair of outer arm portions 20, 20 of the outer support portion 10. In addition, the sensor connector 57 is provided between the pair of power supply connectors 55A, 55B and on the reference line L1.

[0045] In addition, refer to Figure 5The pair of power supply connectors 55A, 55B and the sensor connector 57, which are provided to protrude from the other end surface 47A of the control unit housing 47 and constitute the electric brake device 1, are configured to be mounted on the vehicle body 81 side in a regularly arranged manner. Specifically, in the electric brake devices 1, 1 respectively provided on the pair of left and right wheels 83, 83, the pair of power supply connectors 55A, 55B and the sensor connector 57 are respectively arranged at line-symmetrical positions with respect to a reference line L2 located at the center between the pair of left and right wheels 83, 83 and extending in the traveling direction (front-rear direction) of the vehicle, in other words, located at the center in the width direction of the vehicle body 81 and extending in the traveling direction (front-rear direction) of the vehicle.

[0046] On the other hand, referring to Figure 6 In the electric brake devices 1, 1 respectively provided on the left and right pair of wheels 83, 83, the pair of power supply connectors 55A, 55B and the sensor connector 57 are respectively arranged at point-symmetrical positions with respect to the reference point O1. It should be noted that the reference point O1 is located in the center between the left and right pair of wheels 83, 83 and in the middle of the entire length (outer diameter of the wheel 83) along the traveling direction (front-rear direction) of the left and right pair of wheels 83, 83.

[0047] It should be noted that, when the sensor connectors 57A and 57B are provided at two locations, Figure 7 As shown, the pair of sensor connectors 57A and 57B are respectively provided on the reference line L1. The motor gear housing 44 is arranged between the pair of sensor connectors 57A and 57B. One sensor connector 57A (57B) of the pair of sensor connectors 57A and 57B is arranged in the center between the pair of power supply connectors 55A and 55B.

[0048] On the other hand, as another embodiment of the configuration of the sensor connectors 57A and 57B, Figure 8 As shown, a pair of sensor connectors 57A, 57B are arranged between a pair of power supply connectors 55A, 55B and in a direction orthogonal to the reference line L1, spaced apart from each other. In other words, a pair of power supply connectors 55A, 55B and a pair of sensor connectors 57A, 57B are arranged in a row. A pair of sensor connectors 57A, 57B are arranged on both sides of the reference line L1. That is, a pair of sensor connectors 57A, 57B are arranged at line-symmetrical positions with respect to the reference line L1.

[0049] Furthermore, in the electric brake device 1 of the present embodiment, during braking during normal driving, power supply to the motor 26, detection signals from detection sensors corresponding to the driver's request and detecting various conditions required for braking, detection signals from wheel speed detection sensors, etc., are input to the control unit 42 via a pair of power supply connectors 55A, 55B and a sensor connector 57. It should be noted that detection signals from a rotation angle detection mechanism that detects the rotation angle of the rotating shaft 27 of the motor 26 and detection signals from a thrust sensor that detects thrusts of the inner and outer brake pads 2, 3 to the disc rotor D, etc. are also input to the control unit 42.

[0050] Next, in the control unit 42, based on these detection signals, the rotation of the rotating shaft 27 of the motor 26 in the positive direction, that is, the braking direction, is controlled. The rotation of the motor 26 is transmitted to the speed reduction mechanism 60 of the brake mechanism 28. Next, the rotation after the force is increased by the speed reduction mechanism 60 is transmitted to the rotation-to-direct motion conversion mechanism 61 of the brake mechanism 28. The rotation-to-direct motion conversion mechanism 61 converts the rotational motion from the speed reduction mechanism 60 into a linear motion, thereby advancing the piston 36, and the inner brake pad 2 presses the disc rotor D due to the advancement of the piston 36.

[0051] Furthermore, due to the reaction force of the piston 36 against the pressing force of the inner brake pad 2, the caliper body 25 (brake caliper 4) moves inward relative to the planetary carrier 5 by the axial sliding of the pair of sliding pins 38, 38 into the pair of pin sliding portions 31, 31, and the outer brake pad 3 in contact with the pair of claw portions 30, 30 presses the disc rotor D. As a result, the disc rotor D is sandwiched between the pair of inner and outer brake pads 2, 3, generating friction force, thereby generating a braking force for the vehicle.

[0052] On the other hand, when the brake is released, the rotating shaft 27 of the motor 26 is controlled to rotate in the opposite direction, that is, the release direction, according to the command from the control unit 42, and the rotation in the opposite direction is transmitted to the rotation-to-direct motion conversion mechanism 61 via the speed reduction mechanism 60 of the brake mechanism 28. As a result, the piston 36 retreats and returns to the initial position, and the braking force on the pair of inner and outer brake pads 2 and 3 of the disc rotor D is released.

[0053] Moreover, in the electric brake device 1 of the present embodiment described above, the pair of power supply connectors 55A, 55B and the sensor connector 57 are configured to be mounted on the vehicle body 81 side in a regularly arranged manner. Specifically, in the electric brake devices 1, 1 respectively equipped with a pair of left and right wheels 83, 83, the pair of power supply connectors 55A, 55B and the sensor connector 57 are respectively arranged at positions that are line-symmetrical with respect to the reference line L2. In addition, in the electric brake devices 1, 1 respectively equipped with a pair of left and right wheels 83, 83, the pair of power supply connectors 55A, 55B and the sensor connector 57 may also be respectively arranged at positions that are point-symmetrical with respect to the reference point O1.

[0054] As a result, the workability related to the connection to the pair of power supply connectors 55A, 55B and the sensor connector 57 is improved, and it also contributes to the improvement of the vehicle's mounting performance and the design of the outline. In addition, the control unit housing 47 and the motor gear housing 44 including the pair of power supply connectors 55A, 55B and the sensor connector 57 can be shared by the left and right pair of electric brake devices 1, 1 corresponding to the left and right pair of wheels 82, 82. As a result, it is possible to suppress the increase in cost, which is economically advantageous.

[0055] In addition, in the electric brake device 1 of the present embodiment, in particular, the pair of power supply connectors 55A and 55B are arranged line-symmetrically with respect to a reference line L1 extending in the radial direction and passing through the center O2 of the motor 26. On the other hand, the sensor connector 57 is arranged on the reference line L1. Thus, the workability related to the connection to the pair of power supply connectors 55A and 55B and the sensor connector 57 can be further improved.

[0056] Next, as other implementations, Fig. 9 As shown in (a), a pair of rotating mounting parts 65, 65 are provided on the outer periphery of the control unit housing 47 or the motor gear housing 44. The rotating mounting part 65 has a mounting plate part 66 extending in a predetermined range along the circumferential direction and a slit part 67 formed in the mounting plate part 66. When the reference line L1 passes through the center O2 of the motor 26 and extends in the vertical direction, the pair of rotating mounting parts 65, 65 are respectively arranged at the bottom and the center angle α is set to a position of approximately 120°. Support pins 68, 68 are respectively arranged in the slit parts 67, 67 of each rotating mounting part 65, 65. It should be noted that the support pins 68, 68 are connected to the vehicle body 81 side.

[0057] Moreover, if Fig. 9As shown in (b) and (c) of FIG. 1 , the control unit housing 47 and the motor gear housing 44 are configured to be rotatable relative to the cylinder body 29 with the radial center O2 of the motor 26 as the reference, that is, around the radial center axis (rotation axis 27) within the range of the circumferential length of the slit portion 67, and can be fixed at any position. As a result, the positions of the pair of power supply connectors 55A, 55B and the sensor connector 57 can also be changed as needed. As a result, the mounting performance on the vehicle and the workability related to the connection to the pair of power supply connectors 55A, 55B and the sensor connector 57 can be further improved.

[0058] In addition, in this embodiment, if Figure 1 As shown in FIG. 1 , the rotating shaft 27 (motor gear housing 44) of the motor 26 and the cylinder hole 34 of the cylinder body 29 are arranged substantially concentrically, but may also be arranged as shown in FIG. Fig.10 As shown, the rotating shaft 27 of the motor 26 and the radial center axis of the cylinder hole 34 of the cylinder body 29 are parallel to each other and are respectively arranged at different positions. As a result, the vehicle mounting performance can be further improved. It should be noted that in this embodiment, Fig.10 Reference symbol L3 indicates the position of the rotation shaft 27 , and reference symbol L4 indicates the position of the radial center axis of the cylinder hole 34 .

[0059] In addition, this embodiment is adopted in the electric brake device 1 in which the control unit 42 is mounted in the control unit case 47, but it is also possible to adopt an electric brake device without mounting the control unit 42. In addition, in this embodiment, two power supply connectors 55A and 55B are provided, but three or more connectors may be provided.

[0060] It should be noted that the present invention is not limited to the above-mentioned embodiments, and may include various variations. For example, the above-mentioned embodiments are described in detail to make the present invention easy to understand, and are not limited to having all the described structures. In addition, a part of the structure of a certain embodiment may be replaced by the structure of other embodiments, and the structure of other embodiments may be added to the structure of a certain embodiment. In addition, other structures may be added, deleted, or replaced to a part of the structure of each embodiment.

[0061] This application claims priority based on Japanese application No. 2022-191841, filed on November 30, 2022. This application is hereby incorporated by reference in its entirety including the specification, claims, drawings, and abstract of Japanese application No. 2022-191841, filed on November 30, 2022.

[0062] Description of Reference Numerals

[0063] 1 electric brake device; 2 inner brake pad (brake component); 3 outer brake pad (brake component); 4 brake caliper; 26 electric motor; 28 brake mechanism; 42 control unit; 55A, 55B power supply connector (connector unit, power supply connector unit); 57, 57A, 57B sensor connector (connector unit); 81 vehicle body; D disc rotor (braked component).

Claims

1. An electric brake device, characterized in that: The electric brake device has: a brake mechanism that presses the brake member toward the braked member; an electric motor that drives the brake mechanism; A plurality of connectors for supplying power to the motor or inputting a signal from a detection sensor; The electric brake device is configured to be mountable on the vehicle body side as a pair of electric brake devices on the left and right wheels. The connector portions are configured to be attachable to the vehicle body in a regularly arranged manner.

2. The electric brake device according to claim 1, wherein: The connector portions are arranged symmetrically with respect to the vehicle body.

3. The electric brake device according to claim 1, wherein: The connector portions are arranged point-symmetrically with respect to the vehicle body.

4. The electric brake device according to claim 2 or 3, wherein: The connector portions are arranged symmetrically with respect to a reference line that passes through the center of the electric motor having a circular outer shape and extends in a radial direction.

5. The electric brake device according to claim 1, wherein: The motor and the connectors are mounted on a housing. The housing is configured to be rotatable about the central axis of the electric motor having a circular outer shape.

6. The electric brake device according to claim 1, wherein: A control unit is provided which is electrically connected to the electric motor.

7. The electric brake device according to claim 1, wherein: Each of the connector portions has two or more power supply connector portions for inputting power supply.

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