Ventilation and heat dissipation mechanism of automobile brake calipers

Abstract

The utility model discloses a ventilation and heat dissipation mechanism of an automobile brake caliper, which belongs to the technical field of automobile processing, and comprises a brake caliper shell, a front end cover and a rear end cover are arranged on the brake caliper shell, piston cylinder covers are symmetrically arranged on the brake caliper shell, a wind scooper is fixedly arranged in the front end cover, and a fan is fixedly arranged in the rear end cover. A cover body of the wind scooper is arranged in an arc shape, third connecting pipes are symmetrically arranged on the wind scooper, second connecting pipes are fixedly connected to air outlets of the third connecting pipes, air outlets of the second connecting pipes communicate with the piston cylinder cover, and the second connecting pipes are arranged in a conical cylinder shape; and the cross sectional area of the second connecting pipe is gradually reduced from the air inlet to the air outlet. By means of the wind scooper, the third connecting pipe and the second connecting pipe, ventilation and heat dissipation can be conducted on main brake components such as the piston cylinder, and the service life of the calipers is effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile processing, and in particular relates to a ventilation and heat dissipation mechanism of an automobile brake caliper. Background Art

[0002] The car brake caliper belongs to the brake structure in the car's brake system. When the car brakes, hydraulic oil is injected into the piston cylinder to push the piston movement, thereby driving the friction plate set on the caliper to move toward the brake disc. The friction between the friction plate and the rotating brake disc slows down the brake disc, thereby achieving the purpose of deceleration braking.

[0003] When a car brakes, a large amount of heat is generated due to friction. Generally, a heat dissipation mechanism is set on the brake disc to dissipate heat. However, since the brake caliper is provided with an outer shell, the temperature inside the caliper shell will be higher. Usually, ventilation holes are opened in the shell for ventilation and heat dissipation. However, since the piston cylinder is embedded in the shell, it is difficult to dissipate heat from the piston cylinder. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a ventilation and heat dissipation mechanism for an automobile brake caliper.

[0005] The technical solution adopted to solve the above technical problems is: a ventilation and heat dissipation mechanism of an automobile brake caliper, comprising a brake caliper housing, a front end cover and a rear end cover being provided on the brake caliper housing, a piston cylinder cover being symmetrically provided on the brake caliper housing, an air guide cover being fixedly provided inside the front end cover, the cover body of the air guide cover being arranged in an arc shape, a third connecting pipe being symmetrically provided on the air guide cover, a second connecting pipe being fixedly connected to the air outlet of the third connecting pipe, the air outlet of the second connecting pipe being connected to the piston cylinder cover, the second connecting pipe being arranged in a conical cylindrical shape, and the cross-sectional area of ​​the second connecting pipe gradually decreasing from the air inlet to the air outlet.

[0006] Through the above technical solution, when air flows into the front end cover, it flows along the inner wall of the front end cover, and part of the air enters the air guide hood arranged in the front end cover. Since the cover body of the air guide hood is arranged in an arc shape, the air flows along the arc inner wall of the air guide hood, and converges in the air guide hood, and enters the second connecting pipe through the third connecting pipe. Since the second connecting pipe is arranged in a conical cylindrical shape, the cross-sectional area of ​​the second connecting pipe gradually decreases from the air inlet to the air outlet. According to the principle that the flow velocity is small where the cross-section is large and the flow velocity is large where the cross-section is small, the air enters the second connecting pipe and flows along the second connecting pipe, and the flow velocity gradually increases. After being accelerated through the second connecting pipe, the air enters the piston cylinder cover, takes away the heat of the piston cylinder cover and enters the air guide cylinder through the first connecting pipe, thereby ventilating and cooling the main brake components such as the piston cylinder, effectively extending the service life of the caliper.

[0007] Furthermore, a ventilation hole is provided on the brake caliper housing.

[0008] Furthermore, an air guide tube is symmetrically provided on the brake caliper housing, and an isolation net is fixedly provided on one side surface of the air guide tube.

[0009] Furthermore, the air guide cylinder and the piston cylinder cover are connected via a first connecting pipe. The first connecting pipe is arranged in a conical cylindrical shape, and the cross-sectional area of ​​the first connecting pipe gradually decreases from the air inlet to the air outlet.

[0010] Furthermore, a rotating roller is rotatably arranged in the air guide tube, and a movable groove is opened on the surface of the rotating roller. The movable groove is arranged in a wave shape with end to end connected. One end of the rotating roller is fixedly connected to a fixed shaft, and centrifugal blades are arranged in a circumferential array on the fixed shaft.

[0011] Furthermore, the brake caliper housing is symmetrically provided with a limiting sliding groove, a connecting rod is slidably arranged in the limiting sliding groove, and both ends of the connecting rod are fixedly connected to a scraper plate and a limiting block respectively.

[0012] Furthermore, the edge of the dust scraper is arranged to fit the rear inner wall of the brake caliper housing.

[0013] Furthermore, the limit block is arranged in the air guide tube, and a sliding rod is fixedly connected to the limit block, and one end of the sliding rod is slidably arranged in the movable groove.

[0014] Through the above technical solution, since the first connecting tube is arranged in a conical cylindrical shape, the cross-sectional area of ​​the first connecting tube gradually decreases from the air inlet to the air outlet, and the air is further accelerated through the first connecting tube into the air guide tube and blown to the centrifugal blades. The centrifugal blades rotate under the push of the accelerated air, thereby driving the rotating roller to rotate through the fixed shaft, so that the slide rod slides relatively under the push of the groove wall of the movable groove of the rotating roller. Since the movable groove is in a wave shape connected end to end, the slide rod is driven to move back and forth in the movable groove relative to the rotating roller, thereby driving the connecting rod to move back and forth in the limiting groove through the limit block, thereby driving the scraper plate to repeatedly scrape the rear inner wall of the brake caliper housing, thereby preventing dust from adhering to the rear inner wall of the caliper housing, and the scraped dust is discharged from the inside of the caliper housing with the flow of air. When braking, dust is prevented from entering the gap between the friction plate and the inner wall of the brake caliper housing into the gap between the piston shaft and the hole, thereby accelerating the wear of the piston shaft, and further extending the service life of the caliper.

[0015] The beneficial effects of the utility model are as follows:

[0016] (1)The utility model discloses a wind scooper, third connecting pipe and second connecting pipe are set up, when the air flows into the inside of front end cover, along the inner wall of front end cover, part of air enters the wind scooper of the inside of front end cover, because the cover of wind scooper is arc, so air along the arc inner wall of wind scooper flows, and gathers in the wind scooper, and enters the second connecting pipe in through third connecting pipe, because the second connecting pipe is conical cylinder shape setting, the cross section area of second connecting pipe gradually reduces from air inlet to air outlet, according to the principle that the flow velocity is small in the section, the flow velocity is big in the section, air enters the second connecting pipe and along the second connecting pipe flows, and the flow velocity gradually increases, and air enters piston cylinder cover after accelerating through the second connecting pipe, and the heat of piston cylinder cover is taken away and enters the wind scooper through the first connecting pipe, thereby the main brake parts such as piston cylinder are ventilated and cooled, and the service life of caliper is effectively prolonged.

[0017] (2)The utility model discloses a wind scooper, centrifugal blade, rotating roller, moving groove and dust scraping plate are set up, because the first connecting pipe is conical cylinder shape setting, the cross section area of first connecting pipe gradually reduces from air inlet to air outlet, and air further enters the wind scooper and blows to centrifugal blade after accelerating through the first connecting pipe, and centrifugal blade rotates under the push of accelerating air, thereby rotating roller is driven to rotate through fixed shaft, thereby the relative sliding of slide rod under the push of the groove wall of moving groove of rotating roller is formed, because moving groove is head-to-tail wave shape, so the back and forth movement of slide rod in moving groove relative to rotating roller is formed, thereby the reciprocating movement of connecting rod in limit sliding slot is driven through limiting block, thereby the repeated scraping of dust scraping plate in the tail inner wall of brake caliper shell is driven, thereby avoiding that dust adheres to the tail inner wall of brake caliper shell, and the dust scraped off is discharged from the inside of brake caliper shell along with the flow of air, and when braking, avoiding that dust enters the gap of piston shaft and hole through the gap between friction piece and the inner wall of brake caliper shell and accelerates the wear of piston shaft, and further prolonging the service life of caliper. DRAWINGS

[0018] Figure 1 It is the brake disc and caliper of the ventilation and cooling mechanism of the utility model discloses a kind of automobile brake caliper;

[0019] Figure 2 It is the brake disc and caliper of the ventilation and cooling mechanism of the utility model discloses a kind of automobile brake caliper;

[0020] Figure 3 It is the brake disc and caliper of the ventilation and cooling mechanism of the utility model discloses a kind of automobile brake caliper;

[0021] Figure 4 It is the A structure of the ventilation and cooling mechanism of the utility model discloses a kind of automobile brake caliper Enlarged view;

[0022] Figure 5It is the utility model a kind of automobile brake caliper's ventilation and heat dissipation mechanism's air deflector cover perspective view;

[0023] Figure 6 It is the utility model a kind of automobile brake caliper's ventilation and heat dissipation mechanism's rotating roller perspective view.

[0024] Reference signs: 1, brake caliper shell;2, ventilation opening;3, front end cover;4, rear end cover;5, air deflector;6, first connecting pipe;7, piston cylinder cover;8, second connecting pipe;9, third connecting pipe;10, isolation net;11, air deflector cover;12, ash scraping board;13, limit sliding slot;14, connecting rod;15, limit block;16, sliding rod;17, moving groove;18, rotating roller;19, fixed shaft;20, centrifugal blade. DETAILED DESCRIPTION

[0025] In order to make the utility model purposes, technical scheme and advantages more clearly, the following is combined with drawing and example, and the utility model is further detailed.The specific embodiments described herein are merely used to explain the utility model, and are not used to limit the utility model.

[0026] As Figures 1-6 Indicated, the utility model a kind of automobile brake caliper's ventilation and heat dissipation mechanism, including brake caliper shell 1, brake caliper shell 1 is provided with front end cover 3 and rear end cover 4, brake caliper shell 1 is symmetrically provided with piston cylinder cover 7, front end cover 3 inside fixedly provided with air deflector cover 11, the cover body of air deflector cover 11 is arc-shaped setting, air deflector cover 11 is symmetrically provided with third connecting pipe 9, third connecting pipe 9 outlet is fixedly connected with second connecting pipe 8, the outlet of second connecting pipe 8 is communicated with piston cylinder cover 7, second connecting pipe 8 is conical cylinder shape setting, the cross-sectional area of second connecting pipe 8 gradually decreases from air inlet to outlet, can be ventilated and heat dissipated to piston cylinder and other main brake components, to prolong the service life of caliper.

[0027] Brake caliper shell 1 is provided with ventilation opening 2, can effectively ventilate and heat dissipate inside caliper shell 1, reduce the weight of caliper shell 1 simultaneously, improve the performance of automobile, save material cost.

[0028] Brake caliper shell 1 is symmetrically provided with air deflector 5, and air deflector 5 one side surface is fixedly provided with isolation net 10.

[0029] Air deflector 5 and piston cylinder cover 7 are communicated by first connecting pipe 6, and first connecting pipe 6 is conical cylinder shape setting, and the cross-sectional area of first connecting pipe 6 gradually decreases from air inlet to outlet.

[0030] A rotating roller 18 is rotatably arranged in the air guide tube 5, and a movable groove 17 is opened on the surface of the rotating roller 18. The movable groove 17 is arranged in a wave shape with end to end connected. One end of the rotating roller 18 is fixedly connected to a fixed shaft 19, and the fixed shaft 19 is provided with centrifugal blades 20 in a circumferential array.

[0031] The brake caliper housing 1 is symmetrically provided with a limiting slide groove 13 , in which a connecting rod 14 is slidably arranged. The two ends of the connecting rod 14 are respectively fixedly connected to a scraper plate 12 and a limiting block 15 .

[0032] The edge of the dust scraper 12 is arranged in contact with the inner wall of the rear portion of the brake caliper housing 1 .

[0033] A limit block 15 is arranged in the air guide tube 5, and a slide rod 16 is fixedly connected to the limit block 15. One end of the slide rod 16 is slidably arranged in a movable groove 17. The dust scraper 12 repeatedly scrapes the rear inner wall of the brake caliper housing 1 to prevent dust from adhering to the rear inner wall of the caliper housing 1. The scraped dust is discharged from the inside of the caliper housing 1 with the flow of air. When braking, dust is prevented from entering the gap between the friction plate and the inner wall of the brake caliper housing 1 into the gap between the piston shaft and the hole, thereby accelerating the wear of the piston shaft.

[0034] The working principle of this embodiment is as follows: the brake disc has a double-layer structure, and an arc-shaped sheet is arranged in a circular array in the middle of the interlayer. The direction of the arc-shaped sheet is toward the rotation direction of the brake disc. When the brake disc rotates, the air flows along the arc-shaped sheet under the push of the arc-shaped sheet. Therefore, when the brake disc rotates, the air flows into the brake caliper housing 1 under the action of the arc-shaped sheet. The flow direction of the air flows from the front end cover 3 of the brake caliper housing 1 to the rear end cover of the brake caliper housing 1. The heat in the brake caliper housing 1 is dissipated through the vent 2 along with the flow of air. At the same time, when the air flows into the front end cover 3, it flows along the front end cover 3. The inner wall of the air flows, and part of the air enters the air guide cover 11 set in the front cover 3. Since the cover body of the air guide cover 11 is arranged in an arc shape, the air flows along the arc inner wall of the air guide cover 11, and converges in the air guide cover 11, and enters the second connecting pipe 8 through the third connecting pipe 9. Since the second connecting pipe 8 is arranged in a conical cylindrical shape, the cross-sectional area of ​​the second connecting pipe 8 gradually decreases from the air inlet to the air outlet. According to the principle that the flow rate is small at a large cross-section and the flow rate is large at a small cross-section, the air enters the second connecting pipe 8 and flows along the second connecting pipe 8. The flow rate gradually increases, and the air is accelerated after passing through the second connecting pipe 8 and enters The piston cylinder cover 7 takes away the heat of the piston cylinder cover 7 and enters the air guide cylinder 5 through the first connecting pipe 6, thereby ventilating and cooling the main brake components such as the piston cylinder. Since the first connecting pipe 6 is arranged in a conical cylindrical shape, the cross-sectional area of ​​the first connecting pipe 6 gradually decreases from the air inlet to the air outlet. The air is further accelerated by the first connecting pipe 6 and enters the air guide cylinder 5 and blows toward the centrifugal blades 20. The centrifugal blades 20 rotate under the impetus of the accelerated air, thereby driving the rotating roller 18 to rotate through the fixed shaft 19, so that the slide bar 16 moves relative to the groove wall of the moving groove 17 of the rotating roller 18 under the impetus of the sliding rod 16. Sliding, since the moving groove 17 is in a wavy shape connected end to end, it drives the sliding rod 16 to move back and forth in the moving groove 17 relative to the rotating roller 18, thereby driving the connecting rod 14 to reciprocate in the limiting slide groove 13 through the limit block 15, thereby driving the scraper plate 12 to repeatedly scrape the rear inner wall of the brake caliper housing 1, thereby preventing dust from adhering to the rear inner wall of the caliper housing 1, and the scraped dust is discharged from the inside of the caliper housing 1 with the flow of air. When braking, it prevents dust from entering the gap between the friction plate and the inner wall of the brake caliper housing 1 into the gap between the piston shaft and the hole and accelerating the wear of the piston shaft.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A ventilation and heat dissipation mechanism for an automobile brake caliper, comprising a brake caliper housing (1), characterized in that: The brake caliper housing (1) is provided with a front end cover (3) and a rear end cover (4), the brake caliper housing (1) is symmetrically provided with a piston cylinder cover (7), the front end cover (3) is fixedly provided with an air guide cover (11) inside, the cover body of the air guide cover (11) is arranged in an arc shape, a third connecting pipe (9) is symmetrically provided on the air guide cover (11), the air outlet of the third connecting pipe (9) is fixedly connected to a second connecting pipe (8), the air outlet of the second connecting pipe (8) is communicated with the piston cylinder cover (7), the second connecting pipe (8) is arranged in a conical cylindrical shape, and the cross-sectional area of ​​the second connecting pipe (8) gradually decreases from the air inlet to the air outlet.

2. The ventilation and heat dissipation mechanism of an automobile brake caliper according to claim 1, characterized in that: A vent (2) is provided on the brake caliper housing (1).

3. The ventilation and heat dissipation mechanism of an automobile brake caliper according to claim 1, characterized in that: An air guide tube (5) is symmetrically arranged on the brake caliper housing (1), and an isolation net (10) is fixedly arranged on one side surface of the air guide tube (5).

4. The ventilation and heat dissipation mechanism of an automobile brake caliper according to claim 3, characterized in that: The air guide cylinder (5) and the piston cylinder cover (7) are connected via a first connecting pipe (6). The first connecting pipe (6) is arranged in a conical cylindrical shape, and the cross-sectional area of ​​the first connecting pipe (6) gradually decreases from the air inlet to the air outlet.

5. The ventilation and heat dissipation mechanism of an automobile brake caliper according to claim 3, characterized in that: A rotating roller (18) is rotatably arranged in the air guide tube (5), and a movable groove (17) is provided on the surface of the rotating roller (18). The movable groove (17) is arranged in a wave shape with the ends connected to each other. One end of the rotating roller (18) is fixedly connected to a fixed shaft (19), and centrifugal blades (20) are arranged in a circumferential array on the fixed shaft (19).

6. The ventilation and heat dissipation mechanism of an automobile brake caliper according to claim 1, characterized in that: A limiting slot (13) is symmetrically provided on the brake caliper housing (1), a connecting rod (14) is slidably arranged in the limiting slot (13), and both ends of the connecting rod (14) are fixedly connected to a scraper plate (12) and a limiting block (15).

7. The ventilation and heat dissipation mechanism of an automobile brake caliper according to claim 6, characterized in that: The edge of the scraper plate (12) is arranged to fit the inner wall of the rear portion of the brake caliper housing (1).

8. The ventilation and heat dissipation mechanism for an automobile brake caliper according to claim 6, characterized in that: The limit block (15) is arranged in the air guide tube (5), and a slide rod (16) is fixedly connected to the limit block (15), and one end of the slide rod (16) is slidably arranged in the movable groove (17).

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