Vehicle brake device with parking caliper

Abstract

The present invention discloses a vehicle brake device with a parking caliper, comprising: a brake disc; a caliper body, located on the brake disc; two brake pads, arranged inside the caliper body and respectively located on both sides of the brake disc; a brake motor, installed inside the caliper body; a channel, fixedly connected to the caliper body, having a first branch and a second branch, respectively corresponding to the two brake pads; a control component, arranged in the second branch, to control the connection state of the second branch. The channel of the present invention contains brake fluid, and the brake motor applies pressure to the brake fluid, so that the brake fluid flows in the channel and transmits the pressure to the brake pad. The control component can intercept the brake fluid in the second branch, cooperate with the brake motor to control the first branch, and form three working modes of single braking of any one brake pad and double braking of two brake pads, so as to overcome the problem of weakened braking effect caused by deformation of the brake pad due to continuous braking, and achieve braking for a long time and maintain the braking effect.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic power transmission devices, and in particular to a vehicle braking device with a parking caliper. Background Art

[0002] Vehicle braking forces a moving vehicle to slow down or even stop according to the driver's subjective will, and the main component that plays the above role is the parking caliper in the vehicle.

[0003] When the vehicle decelerates, the brake pads in the parking caliper transmit the force through the corresponding transmission structure to make the brake pads approach and slide against the brake disc, reducing the vehicle's forward kinetic energy through continuous friction resistance. However, the continuous friction between the relatively stationary brake pads and the relatively sliding brake disc will generate heat. The continuous generation and accumulation of heat, if accumulated to a certain extent, will cause the brake pads to deform, and the braking effect on the brake disc will be weakened or even fail. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle brake device with a parking caliper to overcome the problem of weakened braking effect caused by deformation of brake pads due to continuous braking.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A vehicle braking device with a parking caliper, comprising:

[0007] Brake discs;

[0008] The caliper body, located on the brake disc;

[0009] Two brake pads are arranged inside the caliper body and are respectively located on both sides of the brake disc;

[0010] A brake motor, mounted inside the caliper body;

[0011] A channel is fixedly connected to the caliper body and has a first branch and a second branch, corresponding to two brake pads respectively;

[0012] A control component, disposed on the second branch, to control a connection state of the second branch;

[0013] Among them, the channel contains brake fluid, and the brake motor applies brake fluid pressure to make the brake fluid flow in the channel and transmit the pressure to the brake pad. The control component can intercept the second branch brake fluid and cooperate with the brake motor to control the first branch to form three working modes: single braking of any one brake pad and double braking of two brake pads.

[0014] Preferably, the caliper body includes a covering part, a wrapping part fixed on both sides of the covering part, and a mounting part fixed on one of the covering parts. The two brake pads are located in the covering part. The wrapping part contains a recessed area that is recessed inward. An arc plate is provided for sliding sealing in the recessed area. The thickness of the arc plate is less than the depth of the recessed area. The arc plate is fixedly connected to the brake pads. The first branch and the second branch of the channel are respectively connected to the two recessed areas.

[0015] Preferably, the arc-shaped plate has a first circular hole, a cylinder is fixed to the first circular hole, the cylinder is a hollow structure, the cover has a second circular hole, a sliding seal is arranged between the cylinder and the second circular hole, and one end of the cylinder extending into the cover is fixedly connected to the brake pad.

[0016] Preferably, the brake motor is installed in the mounting member, the output end of the brake motor is fixedly connected to the threaded shaft, the threaded shaft is threadedly connected to the nut, a pressure plate is sealingly and slidingly arranged in the channel, and the pressure plate and the nut are fixedly connected.

[0017] Preferably, the control component includes a first baffle and a second baffle located in the second branch, the first baffle is fixed inside the second branch, the second baffle is slidably arranged inside the second branch, the first baffle and the second baffle both have flow openings, the first baffle and the second baffle are in contact with each other and a torsion spring is arranged therebetween, and the two ends of the torsion spring are respectively connected to the first baffle and the second baffle.

[0018] Preferably, a concave groove is opened on the side opposite to the second baffle plate, the depth of the groove is less than the thickness of the first baffle plate and the second baffle plate, the center of the first baffle plate is coaxially fixedly connected to the fixed shaft, the other end of the fixed shaft extends into the groove of the second baffle plate, and the torsion spring is sleeved on the outer wall of the fixed shaft.

[0019] Preferably, the control component also includes a control motor fixedly installed on the outside of the second branch, the output shaft of the control motor is fixedly connected to the first fan-shaped plate, the outer edge of the second baffle is fixedly connected to the second fan-shaped plate, the second fan-shaped plate extends out of the second branch and contacts the first fan-shaped plate, and a sealing ring is also fixedly arranged inside the second branch, one side of the sealing ring is in contact with the second baffle to prevent the brake fluid in the second branch from leaking out.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The channel of the present invention contains brake fluid, and the brake motor applies brake fluid pressure to make the brake fluid flow in the channel and transmit the pressure to the brake pad. The control component can intercept the second branch brake fluid and cooperate with the brake motor to control the first branch to form three working modes of single braking of any brake pad and double braking of two brake pads, thereby overcoming the problem of weakened braking effect caused by deformation of the brake pad due to continuous braking, and achieving braking for a longer time and maintaining the braking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of a vehicle brake device with a parking caliper proposed by the present invention;

[0023] Figure 2 A schematic structural diagram of a covering member, a wrapping member and a mounting member in a vehicle brake device with a parking caliper proposed by the present invention;

[0024] Figure 3 A schematic diagram of a connection structure between a channel and a wrapping member in a vehicle brake device with a parking caliper proposed by the present invention;

[0025] Figure 4 A schematic diagram of the connection structure between a brake motor and a pressure plate in a vehicle brake device with a parking caliper proposed by the present invention;

[0026] Figure 5 A schematic structural diagram of a control component provided on a second branch in a vehicle brake device with a parking caliper proposed by the present invention;

[0027] Figure 6 A schematic structural diagram of a first gear disc and a second gear disc in a vehicle brake device with a parking caliper proposed by the present invention;

[0028] Figure 7 The present invention provides a schematic structural diagram of a first circular hole and a second circular hole in a vehicle brake device with a parking caliper.

[0029] In the figure: 1. brake disc; 2. covering part; 3. brake pad; 4. brake motor; 5. first branch; 6. second branch; 7. wrapping part; 8. mounting part; 9. recessed area; 10. arc plate; 11. first circular hole; 12. cylinder; 13. second circular hole; 14. threaded shaft; 15. nut; 16. pressure plate; 17. first baffle plate; 18. second baffle plate; 19. flow port; 20. torsion spring; 21. groove; 22. fixed shaft; 23. control motor; 24. first fan-shaped plate; 25. second fan-shaped plate; 26. sealing ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1 -Attached Figure 7 , a vehicle braking device with a parking caliper, comprising:

[0032] Brake disc 1;

[0033] The caliper body is located on the brake disc 1;

[0034] Two brake pads 3 are arranged inside the caliper body and are respectively located on both sides of the brake disc 1;

[0035] The brake motor 4 is installed inside the caliper body;

[0036] A channel, fixedly connected to the caliper body, having a first branch 5 and a second branch 6, corresponding to the two brake pads 3 respectively;

[0037] A control component, disposed on the second branch 6, to control the connection state of the second branch 6;

[0038] Among them, the channel contains brake fluid, and the brake motor 4 applies brake fluid pressure to make the brake fluid flow in the channel and transmit the pressure to the brake pad 3. The control component can intercept the brake fluid in the second branch 6 and cooperate with the brake motor 4 to control the first branch 5 to form three working modes: single braking of any brake pad 3 and double braking of two brake pads 3.

[0039] The caliper body includes a covering part 2, a wrapping part 7 fixed on both sides of the covering part 2, and a mounting part 8 fixed on one covering part 2. Two brake pads 3 are located in the covering part 2. The wrapping part 7 contains a recessed area 9 recessed inwardly. An arc plate 10 is provided in the recessed area 9 for sliding sealing. The thickness of the arc plate 10 is less than the depth of the recessed area 9. The arc plate 10 is fixedly connected to the brake pads 3. The first branch 5 and the second branch 6 of the channel are respectively connected to the two recessed areas 9.

[0040] The arc plate 10 defines a first circular hole 11, a cylinder 12 is fixed to the first circular hole 11, and the cylinder 12 is a hollow structure. The cover 2 defines a second circular hole 13, and a sliding seal is arranged between the cylinder 12 and the second circular hole 13. One end of the cylinder 12 extending into the cover 2 is fixedly connected to the brake pad 3, so that the brake fluid in the channel can directly contact the brake pad 3 through the cylinder 12, and can absorb the heat generated by the friction of the brake pad 3.

[0041] The brake motor 4 is installed in the mounting part 8, and the output end of the brake motor 4 is fixedly connected to the threaded shaft 14, and the threaded shaft 14 is threadedly connected to the nut 15. A pressure plate 16 is sealingly and slidingly arranged in the channel, and the pressure plate 16 and the nut 15 are fixedly connected. By rotating the threaded shaft 14, the pressure plate 16 slides inside the channel, and the brake fluid in the channel is pressurized or relieved by controlling the sliding direction.

[0042] The control component includes a first baffle 17 and a second baffle 18 located in the second branch 6, the first baffle 17 is fixed inside the second branch 6, and the second baffle 18 is slidably arranged inside the second branch 6, the first baffle 17 and the second baffle 18 both have flow openings 19, the first baffle 17 and the second baffle 18 are in contact with each other and a torsion spring 20 is arranged therebetween, and both ends of the torsion spring 20 are respectively connected to the first baffle 17 and the second baffle 18, and under the elastic action of the torsion spring 20, the flow opening 19 of the first baffle 17 and the flow opening 19 of the second baffle 18 are staggered and not connected.

[0043] A concave groove 21 is provided on one side of the first baffle plate 17 opposite to the second baffle plate 18. The depth of the groove 21 is less than the thickness of the first baffle plate 17 and the second baffle plate 18. The center of the first baffle plate 17 is coaxially fixedly connected to a fixed shaft 22. The other end of the fixed shaft 22 extends into the groove 21 of the second baffle plate 18. The torsion spring 20 is sleeved on the outer wall of the fixed shaft 22.

[0044] The control component also includes a control motor 23 fixedly installed on the outside of the second branch 6, the output shaft of the control motor 23 is fixedly connected to the first fan-shaped plate 24, the outer edge of the second baffle plate 18 is fixedly connected to the second fan-shaped plate 25, the second fan-shaped plate 25 extends out of the second branch 6 and contacts the first fan-shaped plate 24, and a sealing ring 26 is also fixedly arranged inside the second branch 6, one side of the sealing ring 26 is in contact with the second baffle plate 18, and is used to prevent the brake fluid in the second branch 6 from leaking out.

[0045] First mode:

[0046] The brake motor 4 does not apply pressure to the brake fluid in the channel, and the two brake pads 3 do not conflict with the brake disc 1.

[0047] Second mode:

[0048] On the premise that the flow ports 19 of the first baffle plate 17 and the second baffle plate 18 are staggered, the brake motor 4 is started to push the pressure plate 16 forward. The pressure plate 16 applies pressure to the brake fluid, and the brake fluid flows into the recessed area 9 corresponding to the first branch 5, applying pressure to the brake pad 3 corresponding to the first branch 5, so that the brake pad 3 conflicts with the brake disc 1.

[0049] Third mode:

[0050] Based on the second mode, the control motor 23 is started so that the second baffle plate 18 overcomes the elastic force of the torsion spring 20 and rotates forward and makes the two flow ports 19 interconnected. The pressure applied by the brake motor 4 causes the brake fluid to enter the second branch 6, applying pressure to the brake pad 3 corresponding to the first branch 5, so that the two brake pads 3 come into contact with the brake disc 1.

[0051] Fourth mode:

[0052] By controlling the motor 23 to drive the second baffle plate 18 to rotate in the opposite direction again, the two flow ports 19 are staggered and disconnected from each other, thereby maintaining the pressure of the brake fluid in the second branch 6 on the corresponding brake pad 3. Then, the brake motor 4 is controlled to make the pressure plate 16 retreat and cancel the application of the brake fluid pressure. Then, only the brake pad 3 corresponding to the second branch 6 is in conflict with the brake disc 1. Then, by controlling the motor 23 to drive the second baffle plate 18 to rotate forward again, the two flow ports 19 are connected to each other. Then, the pressure of the brake fluid in the second branch 6 is canceled and the first mode is restored.

[0053] The driver presses the brakes at his / her subjective will, that is, inputs the braking information, and the braking device of the present application changes from the first mode to the second mode for braking. A time timer can be added and the duration of the second mode can be pre-set, for example, 0.5s, 1s, 1.5s, etc. After the duration is reached, the second mode is changed to the third mode and the duration of the third mode is set. After the duration is reached, the third mode is changed to the fourth mode and the duration of the fourth mode is set. Among them, the second mode and the fourth mode are both braked by one brake pad 3 and are different brake pads 3. The third mode is a transition mode to avoid braking gaps when the brake pad 3 is replaced, and also increases the braking force on the brake disc 1.

[0054] It should be noted that:

[0055] If the duration of any of the second mode, the third mode and the fourth mode does not reach the predetermined duration, the same operation is adopted to connect the two flow ports 19, connect the first branch 5 and the second branch 6, and cancel the pressure applied to the brake fluid by the brake motor 4 to restore the first mode.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle brake device with a parking caliper, characterized in that: include: Brake disc (1); A caliper body, located on the brake disc (1); Two brake pads (3) are arranged inside the caliper body and are respectively located on the left and right sides of the brake disc (1); A brake motor (4) is installed inside the caliper body; A channel, fixedly connected to the caliper body, having a first branch (5) and a second branch (6), corresponding to the two brake pads (3) respectively; A control component, arranged on the second branch (6), controlling the connection state of the second branch (6); The channel contains brake fluid, and a brake motor (4) applies brake fluid pressure to the brake fluid, causing the brake fluid to flow in the channel and transmit the pressure to the brake pad (3). The control component can intercept the brake fluid in the second branch (6), and cooperate with the brake motor (4) to control the first branch (5), thereby forming three working modes: single braking of any one brake pad (3) and double braking of two brake pads (3); The control component comprises a first baffle (17) and a second baffle (18) located in the second branch (6); the first baffle (17) is fixed inside the second branch (6); the second baffle (18) is rotatably arranged inside the second branch (6); both the first baffle (17) and the second baffle (18) are provided with a flow port (19); the first baffle (17) and the second baffle (18) are in contact with each other and a torsion spring (20) is arranged therebetween; and two ends of the torsion spring (20) are respectively connected to the first baffle (17) and the second baffle (18); A concave groove (21) is provided on one side of the first baffle plate (17) opposite to the second baffle plate (18); the depth of the groove (21) is less than the thickness of the first baffle plate (17) and the second baffle plate (18); the center of the first baffle plate (17) is coaxially fixedly connected to a fixed shaft (22); the other end of the fixed shaft (22) extends into the groove (21) of the second baffle plate (18); and the torsion spring (20) is sleeved on the outer wall of the fixed shaft (22); The control component further comprises a control motor (23) fixedly mounted on the outside of the second branch (6), an output shaft of the control motor (23) fixedly connected to the first sector plate (24), an outer edge of the second baffle plate (18) fixedly connected to the second sector plate (25), the second sector plate (25) extending out of the second branch (6) and contacting the first sector plate (24), a sealing ring (26) fixedly arranged inside the second branch (6), one side of the sealing ring (26) being in contact with the second baffle plate (18) for preventing the brake fluid in the second branch (6) from leaking out; The three working modes are: On the premise that the flow ports (19) of the first baffle plate (17) and the second baffle plate (18) are staggered, the brake motor (4) is started, and the pressure plate (16) applies pressure to the brake fluid, and applies pressure to the brake pad (3) corresponding to the first branch (5), so that the brake pad (3) and the brake disc (1) come into contact; Based on the previous working mode, the control motor (23) is started so that the two flow ports (19) are connected to each other, and the pressure applied by the brake motor (4) causes the brake fluid to enter the second branch (6), and applies pressure to the brake pads (3) corresponding to the second branch (6), so that the two brake pads (3) are in contact with the brake disc (1); On the basis of the previous working mode, the control motor (23) is driven again so that the two flow ports (19) are staggered and disconnected from each other, the pressure of the brake fluid in the second branch (6) on the corresponding brake pad (3) is maintained, the pressure plate (16) moves backward, and the application of the brake fluid pressure is cancelled, so that only the brake pad (3) corresponding to the second branch (6) is in conflict with the brake disc (1).

2. A vehicle brake device with a parking caliper according to claim 1, characterized in that: The caliper body comprises a covering member (2), a wrapping member (7) fixed on both sides of the covering member (2), and a mounting member (8) fixed to one of the covering members (2); two brake pads (3) are located in the covering member (2); the wrapping member (7) comprises a recessed area (9) recessed inwardly; a curved plate (10) is provided in the recessed area (9) as a sliding seal; the thickness of the curved plate (10) is less than the depth of the recessed area (9); the curved plate (10) is fixedly connected to the brake pad (3); and a first branch (5) and a second branch (6) of the channel are respectively connected to the two recessed areas (9).

3. A vehicle brake device with a parking caliper according to claim 2, characterized in that: The arc-shaped plate (10) defines a first circular hole (11), a cylinder (12) is fixed to the first circular hole (11), the cylinder (12) is a hollow structure, the cover (2) defines a second circular hole (13), a sliding seal is provided between the cylinder (12) and the second circular hole (13), and one end of the cylinder (12) extending into the cover (2) is fixedly connected to the brake pad (3).

4. A vehicle brake device with a parking caliper according to claim 1, characterized in that: The brake motor (4) is installed in the mounting member (8), the output end of the brake motor (4) is fixedly connected to the threaded shaft (14), the threaded shaft (14) is threadedly connected to the nut (15), a pressure plate (16) is sealed and slidably arranged in the channel, and the pressure plate (16) and the nut (15) are fixedly connected.

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