CN218228964U - Hydraulic electronic braking hand brake - Google Patents

Abstract

The utility model discloses a hydraulic electronic brake hand brake, which comprises a first shell, a second shell connected with the first shell, a piston assembly and a motor connected with the piston assembly; the left end face of the first shell is provided with an oil outlet used for being connected with an oil way system of the brake caliper, the right end face of the first shell is connected with the left end face of the second shell, and the right end face of the second shell is provided with a motor interface; the inner wall of the first shell and the inner wall of the second shell form a working cavity; an oil inlet groove used for connecting an oil inlet of an automobile oil pipe and an oil inlet connected with the oil inlet is formed in the side wall of the first shell; the piston assembly is sleeved in the working cavity, and the outer edge of the baffle plate of the piston assembly is attached to the inner wall of the working cavity; the push rod of the piston assembly penetrates through the motor interface and is connected with the motor. The utility model adopts the above structure, the electronic hand brake caliper and the brake caliper are designed into a whole; the brake system can be suitable for medium and large hub vehicles, saves installation space for brake upgrading, and saves manufacturing cost.

Description

Hydraulic electronic braking hand brake

Technical Field

The utility model relates to a car braking system braking pincers technical field, concretely relates to hydraulic electronic braking manual brake.

Background

With the development of the vehicle industry, the requirements of consumers on the safety performance of vehicles are higher and higher, wherein the performance of a brake caliper is particularly important as an important safety device. Brake calipers refer to components that generate a braking torque, a force that resists movement or the tendency of a vehicle to move. At present, friction type brake calipers are mostly adopted in automobiles, and the friction between a fixed element and a working surface of a rotating element is utilized to generate brake torque.

Among the prior art, the vehicle of back wheel area electron manual brake wants to upgrade brake braking effect, need do the brake and the parking that two calipers realized the vehicle: one caliper realizes normal braking through hydraulic pressure, and the other caliper realizes parking through a motor. The principle of achieving normal braking by hydraulic pressure is as follows: an oil path system of the brake caliper is connected with a brake oil pipe of an automobile, brake oil in the oil path system pushes a piston of the brake caliper, the piston pushes friction plates, 2 friction plates which are oppositely arranged are close to each other, and the 2 friction plates are matched with each other to clamp a brake disc to realize a braking effect; otherwise, 2 friction discs are far away from each other, and the 2 friction discs loosen the brake disc. The parking is realized through the motor, and the motor is generally mechanically connected with the friction plates to drive the 2 friction plates to approach or leave in opposite directions. The double-caliper structure occupies the installation space and has higher cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to disclose a hydraulic electronic braking manual brake, solved and adopted two callipers to realize electronic brake and hydraulic brake among the prior art, installation space occupies greatly, problem with high costs.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hydraulic electronic braking hand brake comprises a first shell, a second shell connected with the first shell, a piston assembly and a motor connected with the piston assembly; the left end face of the first shell is provided with an oil outlet used for being connected with an oil way system of the brake caliper, the right end face of the first shell is connected with the left end face of the second shell, and the right end face of the second shell is provided with a motor interface; the inner wall of the first shell and the inner wall of the second shell form a working cavity; an oil inlet groove used for connecting an oil inlet of an automobile oil pipe and an oil inlet connected with the oil inlet is formed in the side wall of the first shell; the piston assembly is sleeved in the working cavity, and the outer edge of the baffle plate of the piston assembly is attached to the inner wall of the working cavity; the push rod of the piston assembly penetrates through the motor interface and is connected with the motor.

Further, a first cavity is formed on the inner wall of the first shell, and a second cavity is formed on the inner wall of the second shell; the first cavity and the second cavity are coaxially matched to form the working cavity; the oil outlet is communicated with the first cavity.

Further, the piston assembly and the working chamber are coaxially fitted.

Further, the oil inlet is formed in the position close to the right end of the first shell, and the oil inlet penetrates through the side wall of the first shell; the oil inlet groove is formed in the inner wall of the first shell and close to the right end of the first shell.

Further, the longitudinal section of the first cavity is circular, the axis of the oil inlet is arranged along the radial direction of the first cavity, and the oil inlet groove is arranged along the axis direction of the first cavity.

Furthermore, the right-hand member outer wall of first casing is equipped with first connecting seat, the left end outer wall of second casing is equipped with the second connecting seat, and the connecting piece passes first connecting seat and second connecting seat and realizes that the right-hand member of first casing connects the left end of second casing.

Further, the piston assembly comprises a push rod and a piston connected with the push rod, and the push rod comprises an external thread part provided with external threads, a chuck part connected with the external thread part and a push rod connecting part connected with the chuck part; the left end of the external thread part is connected with a chuck part, the chuck part is attached to the inner wall of the right end face of the second shell, and the push rod connecting part penetrates through the motor interface and then is connected with the motor; the right end of the male screw portion is inserted into the piston.

Furthermore, the piston assembly also comprises a limiting block; the piston comprises a baffle and a piston connecting part provided with a piston inner cavity, the longitudinal section of the baffle is of a circular structure, the shape of the baffle is matched with that of the working cavity, and the outer edge of the baffle is attached to the inner wall of the working cavity; the longitudinal section of the piston connecting part is of a square structure; the limiting block is sleeved on the outer wall of the piston connecting part; the right end of the baffle is connected with the left end of the piston connecting part, the piston inner cavity is coaxially matched with the piston connecting part, and the piston inner cavity is provided with internal threads; the piston inner cavity is provided with an opening at the right end of the piston connecting part; the push rod connecting part is inserted into the piston inner cavity from the right end of the piston connecting part, and the push rod connecting part and the piston inner cavity are in movable threaded connection through external threads and internal threads; the longitudinal section of the limiting block is circular, a square limiting hole is formed in the center of the limiting block, and the piston connecting part penetrates through the limiting hole; the outer edge of the limiting block is attached to the inner wall of the second shell and is located at the position close to the left end of the second shell.

Further, a first sealing ring for sealing is clamped between the outer edge of the baffle and the working cavity.

Further, the device also comprises a one-way valve assembly; the piston is provided with at least 1 first through hole; the check valve assembly comprises a valve body, a pressing sheet, a second sealing ring and a spring, the spring is sleeved on the valve body, the right end of the valve body is connected with the left end face of the baffle through the pressing sheet and the second sealing ring, and the second sealing ring covers the first through hole; the valve body is connected with the piston, the left end of the spring is propped against the flange of the valve body, and the right end of the spring is propped against the pressing sheet.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model adopts the structure that the working cavity, the motor and the piston assembly are matched, realizes the reciprocating displacement of the motor-driven piston assembly in the working cavity, adopts the design of controlling an oil circuit by the motor, adopts the design of a check valve in the internal structure, and realizes the functions of normal braking, normal parking and the like of the vehicle; is suitable for rear wheel brake assemblies of various medium and large-sized automobiles. When the automobile brake control device is used, the brake oil input into the brake caliper firstly passes through the brake caliper and controls the output of the whole oil way, so that the automobile brake and parking are controlled.

The utility model discloses a split type structure of accomplishing through multiple processes such as aluminum alloy forging and CNC processing adopts bolted connection. Compared with the prior art, the utility model can be adapted to a large-medium hub, and is suitable for more rear wheel brake assemblies; the electronic hydraulic brake hand brake split type single piston structure is simple in structure and convenient to install. A hydraulic electronic brake hand brake integrates automobile hydraulic brake and electronic motor caliper parking, and is mainly applied to automobiles with electronic hand brakes on the rear wheels; the utility model discloses electronic hydraulic braking manual brake adopts motor control oil piping system, can be used to the medium and large-scale car more than 17 cun wheel hub. The utility model discloses electron hydraulic braking manual brake system realizes low in manufacturing cost, and the installation is simple and easy, characteristics such as function diversification.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.

Fig. 1 is a schematic perspective view of an embodiment of a hydraulic electronic brake hand brake of the present invention;

FIG. 2 is an exploded schematic view of FIG. 1;

FIG. 3 is a schematic front view of FIG. 1;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is a schematic cross-sectional front view of the first housing of FIG. 2;

FIG. 6 is a schematic sectional front view of the second housing of FIG. 2;

FIG. 7 is an exploded view of the piston assembly of FIG. 2;

FIG. 8 is a schematic sectional elevational view of FIG. 7;

FIG. 9 is a schematic elevational view of the piston of FIG. 7;

FIG. 10 is a schematic right side view of FIG. 9;

FIG. 11 is a schematic front view of the stop block of FIG. 7;

FIG. 12 is a schematic right view of FIG. 11;

FIG. 13 is an exploded schematic view of the one-way valve assembly of FIG. 2;

FIG. 14 is a schematic sectional elevational view of FIG. 13;

in the figure, 1, a first housing; 11. an oil outlet; 12. a first cavity; 13. an oil inlet; 14. an oil inlet groove; 15. a first connecting seat; 2. a second housing; 21. a motor interface; 22. a second cavity; 23. a second connecting seat; 3. a piston assembly; 31. a push rod; 311. an external threaded portion; 312. a chuck section; 313. a push rod connecting part; 32. a piston; 321. a baffle plate; 322. a piston connecting portion; 323. a piston inner cavity; 324. a first through hole; 33. a limiting block; 331. a limiting hole; 332. limiting the tenon; 4. a one-way valve assembly; 41. a valve body; 411. a flange; 42. tabletting; 43. a second seal ring; 44. a spring; 5. a motor; 6. a first seal ring.

Detailed Description

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

A hydraulic electronic brake hand brake as shown in the embodiments of fig. 1-14 comprises a first housing 1, a second housing 2 connected with the first housing, a piston assembly 3 and a one-way valve assembly 4. The left end face of the first shell 1 is provided with an oil outlet 11 used for being connected with an oil path system of the brake caliper, the right end face of the first shell 1 is connected with the left end face of the second shell 2, and the right end face of the second shell 2 is provided with a motor interface 21 used for being connected with the motor 5. The inner wall of the first housing 1 forms a first cavity 12 and the inner wall of the second housing 2 forms a second cavity 22. The first cavity 12 and the second cavity 22 are coaxially fitted and constitute a working chamber of the present embodiment. The oil outlet 11 is communicated with the first cavity 12. The piston assembly 3 is sleeved in the working cavity and is coaxially matched with the working cavity. The check valve assembly 4 is sleeved in the working cavity and connected with the piston assembly 3.

The side wall of the first housing 1 is provided with an oil inlet 13 for connecting an automobile oil pipe and an oil inlet groove 14 for connecting the oil inlet 13. The oil inlet 13 is arranged at a position close to the right end of the first housing 1, and the oil inlet 13 penetrates through the side wall of the first housing 1. The oil inlet groove 14 is formed in the inner wall of the first housing 1 and is close to the right end of the first housing 1. The longitudinal section of the first cavity 12 is circular, the axis of the oil inlet 13 is arranged along the radial direction R of the first cavity 12, and the oil inlet groove 14 is arranged along the axial direction L of the first cavity 12. The right-hand member outer wall of first casing 1 is equipped with first connecting seat 15, and the left end outer wall of second casing 2 is equipped with second connecting seat 23, and connecting piece (not shown) passes first connecting seat 15 and second connecting seat 23 and realizes that the right-hand member of first casing 1 connects the left end of second casing 2.

The piston assembly 3 comprises a push rod 31, a piston 32 connected with the push rod 31 and a limit block 33, wherein the push rod 31 comprises an external thread part 311 provided with external threads, a chuck part 312 connected with the external thread part and a push rod connecting part 313 connected with the chuck part 312. The left end of the external thread part 311 is connected with a chuck part 312, the chuck part 312 is attached to the inner wall of the right end surface of the second housing 2, and the push rod connecting part 313 passes through the motor interface 21 and then is connected with the motor 5. The right end of the male screw part 311 is inserted into the piston 32.

The piston 32 comprises a baffle 321 and a piston connecting part 322 provided with a piston inner cavity 323, the longitudinal section of the baffle 321 is a circular structure, the shape of the baffle 321 is matched with that of the working cavity, the outer edge of the baffle 321 is attached to the inner wall of the working cavity, and a first sealing ring 6 for sealing is further arranged between the outer edge of the baffle 321 and the working cavity. The longitudinal section of the piston connecting portion 322 is a square structure, and the limiting block 33 is sleeved on the outer wall of the piston connecting portion 322. The right end of baffle 321 is connected with the left end of piston connecting portion 322, and piston inner chamber 323 and piston connecting portion 322 are coaxial cooperation and piston inner chamber 323 is equipped with the internal thread. The piston inner chamber 323 is open at the right end of the piston connecting portion 322. The push rod connecting part 313 is inserted into the piston inner cavity 323 from the right end of the piston connecting part 322, and the push rod connecting part 313 and the piston inner cavity 323 realize movable threaded connection through external threads and internal threads, and simultaneously realize movable threaded connection of the push rod 31 and the piston 32. The piston 32 is provided with 8 first through holes 324,8 and the first through holes 324 are arranged around the center of the piston 32. The longitudinal section of the limiting block 33 is circular, a square limiting hole 331 is formed in the center of the limiting block 33, the outer edge of the piston connecting portion 322 is of a square structure, and the piston connecting portion 322 penetrates through the limiting hole 331 and is matched with the limiting hole 331. The outer edge of the limiting block 33 is attached to the inner wall of the second housing 2 and is located at the left end position close to the second housing 2. The outer edge of the limiting block 33 is provided with a limiting tenon 332, and the inner wall of the second shell 2 is provided with a limiting groove matched with the limiting tenon 332. The stopper tenon 332 extends in the axial direction of the stopper 33. Now, the operation flow of the piston assembly 3 is explained: if the motor 5 drives the push rod 31 to rotate forward, the piston 32 movably connected with the push rod through threads is driven by the push rod to move towards the left; if the motor 5 drives the push rod 31 to rotate reversely, the piston 32 movably connected with the push rod through threads is driven by the push rod to move towards the right.

The check valve assembly 4 includes a valve body 41, a pressure plate 42, a second seal ring 43, and a spring 44. The spring 44 is sleeved on the valve body 41, the right end of the valve body 41 is connected to the left end face of the baffle 321 through the pressing sheet 42 and the second sealing ring 43, and the second sealing ring 43 covers the first through hole 324. The valve body 41 is connected to the piston 32, the left end of the spring 44 abuts against the flange 411 of the valve body 41, and the right end of the spring 44 abuts against the pressing piece 42.

As right the utility model discloses a further improvement, first sealing washer 6 and second sealing washer 43 adopt rubber or high density micropore polyurethane foam to make, adopt high density micropore polyurethane foam can be applicable to preparation such as most of frames are sealed, module protection and hardware support. The rubber has the advantages of excellent compressibility, slow rebound resilience, moisture resistance, chemical resistance and rebound resilience, can bear large force and long-time compression, and has good buffering, sealing, filling and shockproof effects.

This embodiment is the split type structure of accomplishing through multiple processes such as aluminum alloy forging and CNC processing, adopts bolted connection. In the embodiment, the design of a motor control oil way is adopted, and the design of a one-way valve is adopted for the internal structure, so that the functions of normal braking, normal parking and the like of the vehicle are realized; is suitable for rear wheel brake assemblies of various medium and large-sized automobiles. When the automobile brake control device is used, the brake oil input into the brake caliper firstly passes through the brake caliper and controls the output of the whole oil way, so that the automobile brake and parking are controlled.

As a further explanation of the present embodiment, the working principle thereof will now be explained: the oil inlet 13 is connected with an automobile oil pipe, and the oil outlet 11 is connected with a brake caliper; the motor 5 does not work during normal service braking, and when the brake is stepped on, brake oil enters the brake caliper through the oil inlet 13, the oil inlet groove 14, the first cavity 12 and the oil outlet 11, so that a friction plate of the brake caliper is driven to work, and a braking effect is generated; the push rod connecting part 313 of the embodiment is connected with the motor 5 after penetrating through the motor interface 21, and the push rod 31 and the piston 32 are connected in a jogged mode through screw threads (namely external threads and internal threads); the piston connecting part 322 adopts a square design and is embedded with the limiting block 33, so that the effect that the piston 32 can only move in the horizontal direction and cannot rotate is achieved; when the parking function is used, the motor 5 works to drive the push rod 31 to rotate forward, so that the piston 32 is forced to move forward (namely the baffle plate moves leftwards), when the first sealing ring 6 reaches the tail end of the oil inlet groove 14, the baffle plate pushes brake oil in the first cavity 12 to enter the brake calipers through the oil outlet 11, a parking effect is generated, and the motor stops working; when the hand brake is released, the motor 5 works to drive the push rod 31 to rotate reversely, the push rod 31 pulls the piston 32 back (namely, the baffle 321 displaces right), the brake oil of the second cavity 22 enters the first cavity 12 through the check valve component 4, the first sealing ring 6 passes through the oil inlet groove 14 right, and the brake oil in the brake caliper flows back, so that the hand brake releasing effect is generated, and the motor stops working.

Compared with the prior art, the brake device can be adapted to large and medium hubs and is suitable for rear wheel brake assemblies of more vehicle types; the electronic hydraulic brake hand brake split type single piston structure is simple in structure and convenient to install.

Other structures of the present embodiment are referred to in the prior art.

As a further explanation of the present invention, the technical features in the embodiments and the embodiments of the present invention can be combined with each other without conflict. The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are also intended to be included within the scope of the claims and the equivalent technical scope of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a hydraulic electronic braking manual brake which characterized in that: comprises a first shell (1), a second shell (2) connected with the first shell, a piston assembly (3) and a motor (5) connected with the piston assembly; an oil outlet (11) for connecting an oil way system of the brake caliper is formed in the left end face of the first shell, the right end face of the first shell is connected with the left end face of the second shell, and a motor interface (21) is formed in the right end face of the second shell; the inner wall of the first shell and the inner wall of the second shell form a working cavity; an oil inlet (13) for connecting an automobile oil pipe and an oil inlet groove (14) for connecting the oil inlet are formed in the side wall of the first shell; the piston assembly (3) is sleeved in the working cavity, and the outer edge of the baffle (321) of the piston assembly is attached to the inner wall of the working cavity; the push rod (31) of the piston assembly passes through the motor interface and is connected with the motor.

2. The hydraulic electronic brake hand brake of claim 1, characterized in that: the inner wall of the first shell (1) forms a first cavity (12), and the inner wall of the second shell (2) forms a second cavity (22); the first cavity and the second cavity are coaxially matched to form the working cavity; the oil outlet (11) is communicated with the first cavity.

3. The hydraulic electronic brake hand brake of claim 1, characterized in that: the piston assembly and the working chamber are coaxially matched.

4. The hydraulic electronic brake hand brake of claim 2, characterized in that: the oil inlet (13) is arranged at a position close to the right end of the first shell (1), and the oil inlet penetrates through the side wall of the first shell; the oil inlet groove (14) is formed in the inner wall of the first shell and close to the right end of the first shell.

5. The hydraulic electronic brake hand brake of claim 2, characterized in that: the longitudinal section of the first cavity (12) is circular, the axis of the oil inlet (13) is arranged along the radial direction of the first cavity, and the oil inlet groove (14) is arranged along the axis direction of the first cavity.

6. The hydraulic electronic brake hand brake of claim 5, characterized in that: the right-hand member outer wall of first casing (1) is equipped with first connecting seat (15), the left end outer wall of second casing (2) is equipped with second connecting seat (23), and the connecting piece passes first connecting seat and second connecting seat and realizes that the right-hand member of first casing connects the left end of second casing.

7. The hydraulic electronic brake hand brake of claim 5, characterized in that: the piston assembly (3) comprises a push rod (31) and a piston (32) connected with the push rod, wherein the push rod comprises an external thread part (311) provided with external threads, a chuck part (312) connected with the external thread part and a push rod connecting part (313) connected with the chuck part; the left end of the external thread part is connected with a chuck part, the chuck part is attached to the inner wall of the right end face of the second shell (2), and the push rod connecting part penetrates through the motor interface (21) and then is connected with the motor (5); the right end of the male screw portion is inserted into the piston.

8. The hydraulic electronic brake hand brake of claim 7, characterized in that: the piston assembly (3) further comprises a limiting block (33); the piston (32) comprises a baffle (321) and a piston connecting part (322) provided with a piston inner cavity (323), the longitudinal section of the baffle is of a circular structure, the shape of the baffle is matched with that of the working cavity, and the outer edge of the baffle is attached to the inner wall of the working cavity; the longitudinal section of the piston connecting part is of a square structure; the limiting block is sleeved on the outer wall of the piston connecting part; the right end of the baffle is connected with the left end of the piston connecting part, the piston inner cavity is coaxially matched with the piston connecting part, and the piston inner cavity is provided with internal threads; the piston inner cavity is provided with an opening at the right end of the piston connecting part; the push rod connecting part (313) is inserted into the piston inner cavity from the right end of the piston connecting part, and the push rod connecting part and the piston inner cavity are in movable threaded connection through external threads and internal threads; the longitudinal section of the limiting block is circular, a square limiting hole (331) is formed in the center of the limiting block, and the piston connecting part penetrates through the limiting hole; the outer edge of the limiting block is attached to the inner wall of the second shell (2) and is positioned at the left end position close to the second shell.

9. The hydraulic electronic brake hand brake of claim 8, characterized in that: and a first sealing ring (6) for sealing is clamped between the outer edge of the baffle plate (321) and the working cavity.

10. The hydraulic electronic brake hand brake of claim 8, characterized in that: also includes a one-way valve assembly; the piston (32) is provided with at least 1 first through hole (324); the check valve assembly comprises a valve body (41), a pressing sheet (42), a second sealing ring (43) and a spring (44), the spring is sleeved on the valve body, the right end of the valve body is connected with the left end face of the baffle (321) through the pressing sheet and the second sealing ring, and the second sealing ring covers the first through hole; the valve body is connected with the piston, the left end of the spring is propped against the flange (411) of the valve body, and the right end of the spring is propped against the pressing sheet.

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