CN114810868B - New energy automobile braking pincers - Google Patents

Abstract

The invention discloses a new energy automobile brake caliper. The clamp comprises a clamp body, a clamp body bridge is arranged on one side surface of the clamp body, a clamp body outer wall top corner and another side outer wall top corner of the clamp body bridge and a clamp pin ring are fixedly arranged at the top corner of the one side outer wall top and the top corner of the other side outer wall of the clamp body bridge respectively, clamp pin rods are fixedly arranged on the inner side walls of the clamp pin rings respectively, and a hydraulic oil box is fixedly arranged at the lower part of the inner wall of one side of the clamp body bridge respectively. There is liquid in the space that forms in the hydraulic piston section of thick bamboo and the heat conduction board is outer, has the friction disc in the liquid, drives the friction disc through the vibration and rubs each other, makes the friction disc convert vibration energy into heat energy to reduce the influence that the vibration produced, on heat energy conducts the sponge layer through liquid and heat conduction board simultaneously, in order to protect the piston, prevent effectively that the vibration from producing the influence to the piston structure, guaranteed that the piston can not take place the skew, protected navigating mate's safety.

Description

A new energy vehicle brake caliper

Technical Field

The present invention relates to the technical field of brake calipers, and in particular to a brake caliper for a new energy vehicle.

Background technique

Braking, also known as braking, refers to the action of stopping or reducing the speed of a running locomotive, vehicle, other means of transportation or machinery. The general principle of braking is to fix a wheel or disc on the high-speed shaft of the machine, install a brake shoe, belt or disc corresponding to it on the machine base, and generate a braking torque under the action of external force. The brake device is a mechanical brake device that can slow down the speed of the vehicle, also known as a reducer. Simply put: the brake pedal of the car is under the steering wheel. When the brake pedal is stepped on, the brake lever is linked to the brake pad on the brake drum to clamp the brake wheel disc, so that the car slows down or stops running. The manual brake of the car is next to the gear and connected to the brake lever. The brake device generates friction between the brake pad and the wheel drum or disc, and converts the kinetic energy of the car into heat energy during the friction process and consumes it. Among them, the disc brake method is the braking method of most existing cars. Disc brakes are composed of the brake pads on the caliper and the brake disc connected to the wheel. When braking, they interact until the wheel stops rotating. Moreover, disc brakes have good braking effects and are easier to maintain than previous drum brake devices. However, disc brake calipers have the following problems: 1. When the brake caliper is in use, friction generates a large amount of heat, which causes brake thermal decay, reduces the friction coefficient of the brake pad, and affects the service life of the brake caliper; 2. At the same time, when the brake caliper is in use, it will vibrate due to friction, and the internal piston will vibrate repeatedly, causing the piston to shift, resulting in poor braking effect or brake failure, which is prone to safety problems.

Summary of the invention

1. Technical issues to be solved

In view of the deficiencies in the prior art, the present invention provides a brake caliper for a new energy vehicle, which has the advantages of ensuring the normal operation of the piston and efficiently dissipating heat, and solves the problem of thermal decay caused by piston displacement and overheating.

(II) Technical solution

To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new energy vehicle brake caliper, comprising a caliper body, a caliper body bridge, a brake structure, a piston protection structure, and a water cooling structure. The caliper body is connected to the caliper body bridge, and the brake structure is arranged between the interior of the caliper body and the interior of the caliper body bridge. The brake structure comprises a piston protection structure, a hydraulic piston cylinder, and a piston. The piston can move relative to the hydraulic piston cylinder. The piston protection structure is located between the hydraulic piston cylinder and the piston. The water cooling structure is arranged at the upper end of the brake structure, and the water flowing out of the water cooling structure can be sprayed on the brake structure.

Preferably, the brake structure comprises a hydraulic oil box respectively fixedly mounted on the inner wall of the caliper body and the inner wall of the caliper body bridge, and a plurality of piston ports are opened on the side wall of the hydraulic oil box, and the piston ports are communicated with the hydraulic piston cylinder.

Preferably, the brake structure also includes a brake pad, a brake block, and a brake disc. The brake pad is fixedly mounted on the piston, a brake pad is fixedly mounted on one end of the brake pad, and the pistons are arranged at both ends of the brake disc. The pistons at both ends can move towards each other to drive the corresponding brake pads to respectively abut against the two ends of the brake disc, that is, the brake pad that cooperates with the piston at one end abuts against one end of the brake disc, and the brake pad that cooperates with the piston at the other end abuts against the other end of the brake disc.

Preferably, the piston protection structure includes a guide slide cylinder fixedly installed in the hydraulic piston cylinder, the guide slide cylinder and the piston are sleeved, a sponge layer is fixedly installed on the outer wall of the guide slide cylinder, a heat conduction plate is fixedly installed on the outer wall of the sponge layer, and a gap is formed between the outer side of the heat conduction plate and the inner side of the hydraulic piston cylinder.

Preferably, the piston protection structure further comprises friction blocks, and a plurality of the friction blocks are immersed in the liquid.

Preferably, the water cooling structure comprises an electrically controlled valve fixedly mounted on the upper portion of the inner wall of the caliper body, a water pipe is fixedly mounted on the outlet end of the electrically controlled valve, and the outlet end of the water pipe is opposite to the upper portion of the brake structure.

Preferably, the brake structure also includes a heat dissipation structure, which includes a fixing groove opened at the center of one end of the brake disc, a plurality of air circulation ports opened on the inner side wall of the fixing groove, a plurality of heat dissipation holes opened at one end of the brake disc, the heat dissipation holes are communicated with the air circulation ports, an annular groove is opened on the side wall of the brake disc, and the air circulation ports are communicated with the annular groove.

Preferably, a connecting hole is provided in the middle of the external top surface of the hydraulic oil box, a connecting pipe is fixedly installed in the middle of the external top surface of the hydraulic oil box, both ends of the connecting pipe are respectively communicated with the connecting holes on both sides, and an arc opening is provided in the middle of the external bottom surface of the hydraulic oil box, the arc opening located at one end of the brake disc is opposite to the bottom surface of the caliper body, and the other arc opening located at the other end of the brake disc is opposite to the bottom surface of the caliper body bridge.

Preferably, brackets are provided at both ends of the lower side of the caliper body, the brackets are opposite to the brake disc, a number of threaded grooves are respectively opened at both ends of the side walls of the bracket, a number of fixing frames are fixedly installed on the bracket, the fixing frames are respectively located at both ends of the brake disc, mud removal bevel blocks are respectively fixedly installed at the corners at both ends of the bottom surface of the bracket, and the side surfaces of each of the mud removal bevel blocks are opposite to the brake disc.

(III) Beneficial effects

Compared with the prior art, the present invention provides a new energy vehicle brake caliper, which has the following beneficial effects:

The brake caliper of the new energy vehicle uses the brake structure to decelerate the running wheel by friction. When the brake structure generates a large amount of heat, the water cooling structure performs water cooling and heat dissipation on the brake structure. At the same time, the heat dissipation structure performs convection heat dissipation on the brake structure. The piston protection structure protects the piston in the brake structure, so that the large amount of heat generated by the brake can be effectively dissipated during braking, and the vibration generated during braking can be prevented from affecting the piston.

Furthermore, when the brake caliper of the new energy vehicle generates vibration, there is liquid in the space formed by the hydraulic piston cylinder and the outside of the heat conduction plate, and there is a friction block in the liquid. The friction blocks are driven to rub against each other by the vibration, so that the friction blocks convert the vibration energy into heat energy to reduce the impact of the vibration. At the same time, the heat energy is transferred to the sponge layer through the liquid and the heat conduction plate to protect the piston, effectively preventing the vibration from affecting the piston structure, ensuring that the piston will not deviate, and protecting the safety of the driver;

Furthermore, when a large amount of heat is generated by brake friction, the brake caliper of the new energy vehicle generates airflow through the air flow port under the action of the rotation of the brake disc to dissipate heat for the brake caliper, and the heat dissipation holes deepen the degree of heat dissipation. When the brake caliper cannot effectively dissipate heat through convection heat dissipation, the electronically controlled valve can be opened through the control in the cab to draw water from the water tank and spray it onto the brake disc through the water pipe to deeply dissipate heat for the brake caliper, prevent overheating from causing thermal decay and affecting the brake structure, effectively reduce the large amount of heat generated during braking, ensure that the friction coefficient of the brake pad will not be reduced, and increase the service life of the brake caliper;

Furthermore, when there is mud on the brake disc of the new energy vehicle brake caliper, in order to prevent the mud from affecting the brake structure, as the brake disc rotates, the brake disc is demudified by the inclined surface of the demudification inclined block, so that the mud falls off the brake disc, and the mud is effectively removed to ensure the braking effect, and the mud is prevented from affecting the brake structure;

Furthermore, the brake caliper of the new energy vehicle, through the setting of the electronically controlled valve, allows the driver to open the electronically controlled valve to water-cool the brake caliper when needed, avoiding water cooling when not needed, preventing excessive waste of water in the water tank, and increasing the practicality of the device;

Furthermore, the brake caliper of the new energy vehicle, through the setting of the annular groove, forms an inner annular airflow in the annular groove when the brake disc rotates, ensuring that the heat discharged from the air circulation port and the heat dissipation hole can be effectively dissipated, avoiding heat retention inside the air circulation port and the heat dissipation hole, and improving the heat dissipation efficiency of the device.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a schematic diagram of the structure of the clamp body of the present invention;

FIG3 is a schematic diagram of the internal structure of the pliers body of the present invention;

FIG4 is a schematic diagram of the structure of the hydraulic oil box of the present invention;

FIG5 is a schematic diagram of a water cooling structure of the present invention;

FIG6 is a schematic cross-sectional plan view of a hydraulic piston cylinder according to the present invention;

FIG7 is a schematic diagram of the brake structure of the present invention;

FIG8 is a schematic diagram of the structure of a tray according to the present invention;

FIG. 9 is a schematic diagram of the brake disc structure of the present invention.

In the figure: 1. caliper body; 2. caliper body bridge; 3. bayonet ring; 4. bayonet rod; 5. hydraulic oil box; 6. arc mouth; 7. oil inlet; 8. connecting hole; 9. connecting pipe; 10. piston mouth; 11. hydraulic piston cylinder; 12. sliding mouth; 13. guide slide cylinder; 14. piston; 15. sponge layer; 16. heat conduction plate; 17. friction block; 18. brake pad; 19. brake block; 20. brake disc; 21. fixing groove; 22. shaft hole; 23. bolt hole; 24. ventilation port; 25. heat dissipation hole; 26. annular groove; 27. bracket; 28. threaded groove; 29. fixing bracket; 30. mud removal inclined block; 31. electric control valve; 32. water pipe.

Detailed ways

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 described embodiments 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 creative work are within the scope of protection of the present invention.

As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, this application proposes a brake caliper for a new energy vehicle.

In a typical embodiment of the present application, as shown in Figures 1-9, a new energy vehicle brake caliper includes a caliper body 1, a caliper body bridge 2, a brake structure, a piston protection structure, and a water cooling structure. The caliper body 1 is connected to the caliper body bridge 2, and the brake structure is arranged between the interior of the caliper body 1 and the interior of the caliper body bridge 2. The brake structure includes a piston protection structure, a hydraulic piston cylinder 11, and a piston 14. The piston 14 can move relative to the hydraulic piston cylinder 11. The piston protection structure is located between the hydraulic piston cylinder 11 and the piston 14. The water cooling structure is arranged at the upper end of the brake structure, and the water flowing out of the water cooling structure can be sprayed on the brake structure.

Furthermore, the brake structure includes a hydraulic oil box 5 fixedly mounted on the inner wall of the caliper body 1 and the inner wall of the caliper body bridge 2, respectively. A plurality of piston ports 10 are opened on the side wall of the hydraulic oil box 5. The piston ports 10 are communicated with the hydraulic piston cylinder 11 for controlling the operation of the brake structure.

Furthermore, the brake structure also includes a brake pad 18, a brake block 19, and a brake disc 20. The brake pad 18 is fixedly mounted on the piston 14, and a brake block 19 is fixedly mounted on one end of the brake pad 18. The pistons 14 are arranged at both ends of the brake disc 20. The pistons 14 at both ends can move towards each other to drive the corresponding brake blocks 19 to abut against the two ends of the brake disc 20 respectively, so as to brake the new energy vehicle.

Furthermore, the piston protection structure includes a guide slide cylinder 13 fixedly installed in the hydraulic piston cylinder 11, the guide slide cylinder 13 and the piston 14 are nested, a sponge layer 15 is fixedly installed on the outer wall of the guide slide cylinder 13, a heat conducting plate 16 is fixedly installed on the outer wall of the sponge layer 15, and a gap is formed between the outer side of the heat conducting plate 16 and the inner side of the hydraulic piston cylinder 11, which is used to protect the normal operation of the piston 14.

Furthermore, the piston protection structure further includes friction blocks 17, and a plurality of the friction blocks 17 are immersed in the liquid for heat dissipation by convection.

Furthermore, the water cooling structure includes an electrically controlled valve 31 fixedly mounted on the upper inner wall of the caliper body 1, a water pipe 32 fixedly mounted on the outlet end of the electrically controlled valve 31, the outlet end of the water pipe 32 is opposite to the top of the brake structure, and is used to spray water on the brake structure for conduction heat dissipation.

Furthermore, the brake structure also includes a heat dissipation structure, which includes a fixing groove 21 opened at the center of one end of the brake disc 20, and a plurality of ventilation ports 24 are opened on the inner side wall of the fixing groove 21. A plurality of heat dissipation holes 25 are opened at one end of the brake disc 20, and the heat dissipation holes 25 are communicated with the ventilation ports 24. An annular groove 26 is opened on the side wall of the brake disc 20, and the ventilation ports 24 are communicated with the annular groove 26 for dissipating heat by convection.

Furthermore, a connecting hole 8 is opened in the middle of the external top surface of the hydraulic oil box 5, and a connecting pipe 9 is fixedly installed in the middle of the external top surface of the hydraulic oil box 5. The two ends of the connecting pipe 9 are respectively communicated with the connecting holes 8 on both sides, and an arc opening 6 is opened in the middle of the external bottom surface of the hydraulic oil box 5. The arc opening 6 located at one end of the brake disc 20 is opposite to the bottom surface of the caliper body 1, and the other arc opening 6 located at the other end of the brake disc 20 is opposite to the bottom surface of the caliper body bridge 2, so that the hydraulic oil boxes 5 are connected to each other to facilitate the use of hydraulic oil.

Furthermore, brackets 27 are provided at both ends of the lower side of the caliper body 1, and the bracket 27 is opposite to the brake disc 20. A plurality of threaded grooves 28 are respectively provided at both ends of the side walls of the bracket 27. A plurality of fixing frames 29 are fixedly installed on the bracket 27, and the fixing frames 29 are respectively located at both ends of the brake disc 20. Mud removal bevel blocks 30 are respectively fixedly installed at the corners at both ends of the bottom surface of the bracket 27, and the side surfaces of each of the mud removal bevel blocks 30 are opposite to the brake disc 20, so as to remove mud on the brake disc 20.

Furthermore, a bayonet ring 3 is fixedly installed at the top corner of the outer wall on one side of the caliper body 1, the top corner of the outer wall on the other side, and the top corner of the outer wall on one side of the caliper body bridge 2, respectively. The bayonet ring 3 is an annular structure, and a bayonet rod 4 is fixedly installed on the inner wall of the bayonet ring 3, which is used to connect and fix the caliper body 1 and the caliper body bridge 2. An oil inlet 7 is opened in the middle of the outer wall of one side of the hydraulic oil box 5, which is used to pass hydraulic oil into the hydraulic oil box 5. A sliding mouth 12 is opened at the center of the external top surface and the center of the external bottom surface of the hydraulic piston cylinder 11, respectively. The sliding mouth 12 is a circular through hole. The size of the sliding mouth 12 is the same as the size of the piston mouth 10, and the sliding mouth 12 is opposite to the piston mouth 10. An axial hole 22 is opened at the center of one end of the fixing groove 21 for fixing the axle, and a plurality of bolt holes 23 are opened at one end of the fixing groove 21 for fixing bolts.

The working principle of the present invention is as follows: when the vehicle brakes, hydraulic oil is introduced into the hydraulic oil box 5 through the oil inlet 7, and the hydraulic oil in the hydraulic oil box 5 pushes the piston 14 with pressure, so that the piston 14 is pushed outward to push the brake pad 18 to move, and the brake pad 18 drives the brake block 19 to move, and the two brake blocks 19 are respectively moved to the two end surfaces of the brake disc 20, so that the brake block 19 and the brake disc 20 are attached together to decelerate the tire.

When the brake generates vibration, there is liquid in the space formed by the hydraulic piston cylinder 11 and the heat conducting plate 16, and there is a friction block 17 in the liquid. The friction blocks 17 are driven to rub against each other by vibration, so that the friction blocks 17 convert the vibration energy into heat energy to reduce the impact of the vibration. At the same time, the heat energy is transferred to the sponge layer 15 through the liquid and the heat conducting plate 16 to protect the piston. When a large amount of heat is generated by the friction of the brake, an air flow is generated through the air flow port 24 under the action of the rotation of the brake disc 20 to dissipate the heat of the brake caliper. At the same time, the heat dissipation hole 25 deepens the degree of heat dissipation. When the brake caliper cannot effectively dissipate the heat of the brake caliper through convection heat dissipation, the electric control valve 31 can be opened through the control in the cab to pump out the water in the water tank and spray it onto the brake disc 20 through the water pipe 32 to dissipate the heat of the brake caliper deeply and prevent the overheating from causing thermal decay and affecting the brake structure.

When there is mud on the brake disc 20 , in order to prevent the mud from affecting the brake structure, as the brake disc 20 rotates, the brake disc 20 is demudified by the inclined surface of the demudging ramp 30 , so that the mud falls off the brake disc 20 .

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A brake caliper for a new energy vehicle, comprising a caliper body (1), a caliper body bridge (2), a brake structure, a piston protection structure, and a water cooling structure, characterized in that: the caliper body (1) is connected to the caliper body bridge (2), the brake structure is arranged between the interior of the caliper body (1) and the interior of the caliper body bridge (2), the brake structure comprises a piston protection structure, a hydraulic piston cylinder (11), and a piston (14), the piston (14) can move relative to the hydraulic piston cylinder (11), the piston protection structure is located between the hydraulic piston cylinder (11) and the piston (14), the water cooling structure is arranged at one end above the brake structure, and water flowing out of the water cooling structure can flow into the brake structure, the brake structure comprises a hydraulic oil box (5) respectively fixedly mounted on the inner wall of the caliper body (1) and the inner wall of the caliper body bridge (2), a plurality of piston ports (10) are opened on the side wall of the hydraulic oil box (5), the piston port (10) is communicated with the hydraulic piston cylinder (11), and the brake structure also comprises a brake The brake pad (18), the brake block (19), and the brake disc (20), the brake pad (18) is fixedly mounted on the piston (14), the brake block (19) is fixedly mounted on one end of the brake pad (18), the piston (14) is arranged at both ends of the brake disc (20), the pistons (14) at both ends move towards each other to drive the corresponding brake blocks (19) to be respectively attached to the two ends of the brake disc (20), and the piston protection structure includes a guide slide cylinder (13) fixedly mounted in the hydraulic piston cylinder (11), The piston (14) is sleeved in the guide slide cylinder (13) so that the piston (14) can move relative to the guide slide cylinder (13); a sponge layer (15) is fixedly mounted on the outer wall of the guide slide cylinder (13); a heat conduction plate (16) is fixedly mounted on the outer wall of the sponge layer (15); a gap is formed between the outer side of the heat conduction plate (16) and the inner side of the hydraulic piston cylinder (11); the piston protection structure also includes friction blocks (17); a plurality of friction blocks (17) are immersed in the liquid. 2. A new energy vehicle brake caliper according to claim 1, characterized in that: the brake structure also includes a heat dissipation structure, the heat dissipation structure includes a fixing groove (21) opened at the center of one end of the brake disc (20), and a plurality of ventilation ports (24) are opened on the inner side wall of the fixing groove (21), and a plurality of heat dissipation holes (25) are opened at one end of the brake disc (20), and the heat dissipation holes (25) are communicated with the ventilation ports (24), and an annular groove (26) is opened on the side wall of the brake disc (20), and the ventilation ports (24) are communicated with the annular groove (26). 3. A new energy vehicle brake caliper according to claim 2, characterized in that: a connecting hole (8) is opened in the middle of the external top surface of the hydraulic oil box (5), and a connecting pipe (9) is fixedly installed in the middle of the external top surface of the hydraulic oil box (5), and the two ends of the connecting pipe (9) are respectively connected to the connecting holes (8) on both sides, and an arc opening (6) is opened in the middle of the external bottom surface of the hydraulic oil box (5), and the arc opening (6) located at one end of the brake disc (20) is opposite to the bottom surface of the caliper body (1), and the other arc opening (6) located at the other end of the brake disc (20) is opposite to the bottom surface of the caliper body bridge (2). 4. A new energy vehicle brake caliper according to claim 3, characterized in that: the water cooling structure includes an electrically controlled valve (31) fixedly installed on the upper part of the inner wall of the caliper body (1), and a water pipe (32) is fixedly installed at the outlet end of the electrically controlled valve (31), and the outlet end of the water pipe (32) is opposite to the top of the brake structure. 5. A new energy vehicle brake caliper according to claim 4, characterized in that: brackets (27) are provided at both ends of the lower side of the caliper body (1), the bracket (27) is opposite to the brake disc (20), and a plurality of threaded grooves (28) are respectively opened at both ends of the side wall of the bracket (27), and a plurality of fixing frames (29) are fixedly installed on the bracket (27), and the fixing frames (29) are respectively located at the two ends of the brake disc (20), and mud removal inclined blocks (30) are respectively fixedly installed at the corners at both ends of the bottom surface of the bracket (27), and the side surfaces of each mud removal inclined block (30) are opposite to the brake disc (20).