Brake device and vehicle

Abstract

The brake device comprises a brake disc (1), a friction part (2), a brake pad (3) and a cooling device (4), the friction part (2) is installed on the brake disc (1), the brake pad (3) is configured to make contact with the friction part (2) and make friction with the friction part (2), and the cooling device (4) is arranged on the brake pad (3) and used for cooling the brake pad (3). The vehicle comprises the brake device. The service life of the brake disc and the brake pad can be effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular, to a braking device and a vehicle. Background Art

[0002] Currently, disc braking devices are usually adopted on motor vehicles, including brake discs and brake pads. When the vehicle brakes, the brake pads frictionally brake with the brake discs.

[0003] During the braking process, the friction between the brake pads and the brake discs will cause the temperatures of the brake pads and the brake discs to rise sharply, resulting in carbonization and damage of the brake pads, deformation and damage of the brake discs, etc., and further leading to damage or locking of the braking device.

[0004] It should be noted that the information disclosed in the background art part of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0005] Embodiments of the present invention provide a braking device and a vehicle, which can effectively improve the service life of the braking device.

[0006] According to one aspect of the present invention, a braking device is provided, including a brake disc, a friction part, a brake pad, and a cooling device. The friction part is mounted on the brake disc, the brake pad is configured to contact and friction with the friction part, and the cooling device is disposed on the brake pad and used to cool the brake pad.

[0007] In some embodiments, the braking device includes two friction parts, which are respectively mounted on the two end faces of the brake disc.

[0008] In some embodiments, the friction part includes a friction plate and a first connecting member. The brake disc is provided with a first mounting hole, the friction plate is provided with a second mounting hole, and the first connecting member passes through the second mounting hole and the first mounting hole to connect the friction plate and the brake disc.

[0009] In some embodiments, the friction part includes a friction material, a heat insulation material, and an adhesive. The friction material and the heat insulation material are bonded to the two end faces of the brake disc through the adhesive.

[0010] In some embodiments, the friction part further includes a second connecting member. The brake disc is provided with a third mounting hole, and the integral formed by the friction material, the heat insulation material, and the adhesive is provided with a fourth mounting hole. The second connecting member passes through the fourth mounting hole and the third mounting hole to connect the friction material, the heat insulation material, the adhesive, and the brake disc.

[0011] In some embodiments, the friction part includes a friction material, a heat insulation material, and an adhesive. The friction material, the heat insulation material, and the adhesive are integrally formed by die-casting on the two end faces of the brake disc.

[0012] In some embodiments, the brake disc and the friction portion are integrally formed.

[0013] In some embodiments, a cavity is provided inside the brake pad. A first through hole communicating with the cavity is provided on a first side wall of the brake pad. The cooling device includes a storage tank and a first delivery pipe. A coolant is stored in the storage tank. One end of the first delivery pipe communicates with the storage tank, and the other end communicates with the cavity through the first through hole.

[0014] In some embodiments, the cooling device further includes a second delivery pipe. A second through hole communicating with the cavity is provided on the first side wall of the brake pad. The second delivery pipe communicates with the cavity through the second through hole, and the coolant in the cavity is discharged through the second delivery pipe.

[0015] In some embodiments, the first side wall is located on a side of the brake pad away from the brake disc. The brake pad further includes a second side wall close to the brake disc, and the cavity is located between the first side wall and the second side wall.

[0016] In some embodiments, the thickness of the first side wall is less than the thickness of the second side wall.

[0017] In some embodiments, the brake pad further includes a support member disposed in the cavity, and the support member is supported between the first side wall and the second side wall.

[0018] In some embodiments, the cooling device further includes a first switching valve, a temperature detection device, a control device, and a second switching valve. The first switching valve is disposed on the pipeline of the first delivery pipe, and the second switching valve is disposed on the pipeline of the second delivery pipe. The temperature detection device is configured to detect the temperature of the brake pad. The control device is signal-connected to the temperature detection device, the first switching valve, and the second switching valve, and controls the first switching valve and the second switching valve to open when the temperature detection device detects that the temperature of the brake pad exceeds a first preset value, or controls the first switching valve and the second switching valve to close when the temperature detection device detects that the temperature of the brake pad is less than a second preset value.

[0019] In some embodiments, the cooling device further includes a heat exchange device and a third delivery pipe. The heat exchange device is configured to cool the coolant. The outlet of the second delivery pipe is connected to the inlet of the heat exchange device, and the third delivery pipe communicates the outlet of the heat exchange device and the storage tank.

[0020] In some embodiments, the brake pad is made of a metal material.

[0021] According to another aspect of the present invention, a vehicle is provided, including the above-mentioned braking device.

[0022] Based on the above technical solution, in the embodiment of the braking device provided by the present invention, a friction part that can contact and rub against the brake pad is installed on the brake disc, which can effectively protect the brake disc and extend its service life; moreover, the braking device further includes a cooling device for cooling the brake pad, which can cool down the brake pad, prevent the brake pad from being damaged due to excessive temperature, and extend the service life of the brake pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0024] Figure 1 FIG. is a schematic structural diagram of an embodiment of the braking device provided by the present invention.

[0025] Figure 2 FIG. is a schematic structural diagram of the brake disc and the friction part in an embodiment of the braking device provided by the present invention.

[0026] Figure 3 FIG. is a schematic structural diagram of the brake pad in an embodiment of the braking device provided by the present invention.

[0027] Figure 4 FIG. is a top view of the brake pad in an embodiment of the braking device provided by the present invention.

[0028] Figure 5 FIG. is a schematic structural diagram of the brake pad and the cooling device in an embodiment of the braking device provided by the present invention.

[0029] Figure 6 FIG. is a cross-sectional view of the brake pad in an embodiment of the braking device provided by the present invention.

[0030] In the figure:

[0031] 1. Brake disc; 2. Friction part; 3. Brake pad; 31. Cavity; 32. First side wall; 33. Second side wall; 34. First through hole; 35. Second through hole; 36. Support member; 4. Cooling device; 41. Storage tank; 42. First delivery pipe; 43. Second delivery pipe; 44. First switching valve; 45. Temperature detection device; 46. Control device; 47. Second switching valve; 48. Heat exchange device; 49. Third delivery pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present invention.

[0034] Reference Figures 1 to 5 , in some embodiments of the braking device provided by the present invention, the braking device includes a brake disc 1, a friction part 2, a brake pad 3 and a cooling device 4. The friction part 2 is installed on the brake disc 1, and the brake pad 3 is configured to contact and rub against the friction part 2. The cooling device 4 is arranged on the brake pad 3 and is used to cool the brake pad 3.

[0035] In the embodiment of the braking device provided by the present invention, a friction part 2 that can contact and rub against the brake pad 3 is installed on the brake disc 1, which can effectively protect the brake disc 1 and extend the service life of the brake disc 1; moreover, the braking device further includes a cooling device 4 for cooling the brake pad 3, which can cool the brake pad 3, prevent the brake pad 3 from being damaged due to excessive temperature, and extend the service life of the brake pad 3.

[0036] As Figure 2 shown, in some embodiments, the braking device includes two friction parts 2, and the two friction parts 2 are respectively installed on both end faces of the brake disc 1.

[0037] By respectively arranging a friction part 2 on both end faces of the brake disc 1, both end faces of the brake pad 3 can be protected simultaneously, effectively improving the service life of the brake pad 3.

[0038] In some embodiments, the friction part 2 includes a friction plate and a first connecting member. The brake disc 1 is provided with a first mounting hole, and the friction plate is provided with a second mounting hole. The first connecting member passes through the second mounting hole and the first mounting hole to connect the friction plate to the brake disc 1.

[0039] The friction part 2 adopts a friction plate and a first connecting member, and the friction plate can be connected to the brake disc 1 through the first connecting member, which is convenient for manufacturing and installation.

[0040] The friction plate can be made of wear-resistant and high-temperature-resistant materials to improve the wear resistance and high-temperature resistance of the friction plate.

[0041] The first connecting member can be a bolt or a rivet, etc.

[0042] In some embodiments, the friction portion 2 includes a friction material, a heat-insulating material, and an adhesive. The friction material and the heat-insulating material are adhered to both side end faces of the brake disc 1 through the adhesive.

[0043] The friction portion 2 adopting a combination of a friction material, a heat-insulating material, and an adhesive can paste the friction material and the heat-insulating material on the brake disc 1 through the adhesive, and the operation is simple and convenient.

[0044] The friction material and the heat-insulating material can be powder or granular materials.

[0045] In some embodiments, the heat-insulating material is disposed between the friction material and the adhesive, so as to paste the friction material and the heat-insulating material on the brake disc 1 through the adhesive. At the same time, the heat-insulating material is disposed inside the friction material, which can effectively protect the heat-insulating material and prevent the heat-insulating material from being consumed due to friction and affecting the heat-insulating effect.

[0046] In some embodiments, the friction portion 2 further includes a second connecting member. The brake disc 1 is provided with a third mounting hole, and the overall formed by the friction material, the heat-insulating material, and the adhesive is provided with a fourth mounting hole. The second connecting member passes through the fourth mounting hole and the third mounting hole to connect the friction material, the heat-insulating material, the adhesive, and the brake disc 1.

[0047] In the embodiment where the friction material and the heat-insulating material are pasted on the brake disc 1 by using an adhesive, by providing the second connecting member to connect the friction material, the heat-insulating material, the adhesive, and the brake disc 1, the connection stability of the friction material, the heat-insulating material, the adhesive, and the brake disc 1 can be further improved, and it can prevent the friction material or the heat-insulating material from falling off due to poor adhesion to the brake disc 1.

[0048] The second connecting member can be a bolt or a rivet, etc.

[0049] In some embodiments, the friction portion 2 includes a friction material, a heat-insulating material, and an adhesive. The friction material, the heat-insulating material, and the adhesive are integrally formed by die-casting on both side end faces of the brake disc 1.

[0050] By integrally forming the friction material, the heat-insulating material, and the adhesive by die-casting on both side end faces of the brake disc 1, the stability of the friction material, the heat-insulating material, and the adhesive with the brake disc 1 can be effectively improved, and it can prevent the friction material from falling off.

[0051] In some embodiments, the brake disc 1 and the friction portion 2 are integrally formed. By integrally forming the brake disc 1 and the friction portion 2, the installation operation can be simplified and the assembly efficiency can be improved. Moreover, the integral formation of the brake disc 1 and the friction portion 2 is also beneficial to improving the relative stability between the brake disc 1 and the friction portion 2.

[0052] As Figures 3 to 5 shown, in some embodiments, a cavity 31 is provided inside the brake pad 3, a first through hole 34 communicating with the cavity 31 is provided on the first side wall 32 of the brake pad 3, the cooling device 4 includes a storage tank 41 and a first delivery pipe 42, a coolant is stored in the storage tank 41, one end of the first delivery pipe 42 communicates with the storage tank 41, and the other end communicates with the cavity 31 through the first through hole 34.

[0053] By providing the cavity 31, coolant can be introduced into the interior of the brake pad 3 to cool the brake pad 3 and prevent the brake pad 3 from being damaged due to high-temperature erosion.

[0054] In some embodiments, the cooling device 4 further includes a second delivery pipe 43, a second through hole 35 communicating with the cavity 31 is provided on the first side wall 32 of the brake pad 3, the second delivery pipe 43 communicates with the cavity 31 through the second through hole 35, and the coolant in the cavity 31 is discharged through the second delivery pipe 43.

[0055] By providing the second delivery pipe 43, the coolant in the cavity 31 can be discharged in time to facilitate the replacement of new coolant and prevent the cooling effect from being reduced due to the increase in the temperature of the coolant.

[0056] In some embodiments, the first side wall 32 is located on the side of the brake pad 3 away from the brake disc 1, the brake pad 3 further includes a second side wall 33 close to the brake disc 1, the cavity 31 is located between the first side wall 32 and the second side wall 33, and the first through hole 34 and / or the second through hole 35 is provided on the first side wall 32.

[0057] By providing the first through hole 34 and / or the second through hole 35 on the first side wall 32, it is possible to avoid interference between the first delivery pipe 42 communicating with the first through hole 34 and the second delivery pipe 43 communicating with the second through hole 35 and the brake disc 1 or the friction portion 2, which may affect the cooling effect.

[0058] In some embodiments, the thickness of the first side wall 32 is less than the thickness of the second side wall 33.

[0059] The second side wall 33 is close to the brake disc 1, and the second side wall 33 contacts and rubs against the friction portion 2 on the brake disc 1. Therefore, by setting the thickness of the second side wall 33 to be greater than the thickness of the first side wall 32, the wear resistance of the second side wall 33 can be improved by increasing the thickness of the second side wall 33, thereby extending the service life of the brake pad 3.

[0060] AsFigure 6 As shown, in some embodiments, the brake pad 3 further includes a support member 36 disposed in the cavity 31, and the support member 36 is supported between the first side wall 32 and the second side wall 33.

[0061] By providing the support member 36 in the cavity 31, the structural strength of the brake pad 3 can be effectively improved, and the brake pad 3 can be prevented from being compressed to squeeze the cavity, resulting in deformation or damage of the brake pad 3.

[0062] By providing the support member 36, the structure of the cavity 31 can also be prevented from being damaged, and the coolant in the cavity 31 can be prevented from leaking, effectively ensuring the cooling effect.

[0063] The support member 36 can be cylindrical or square columnar, etc.

[0064] As Figure 5 shown, in some embodiments, the cooling device 4 further includes a first switching valve 44, a temperature detection device 45, a control device 46, and a second switching valve 47. The first switching valve 44 is disposed on the pipeline of the first delivery pipe 42, and the second switching valve 47 is disposed on the pipeline of the second delivery pipe 43. The temperature detection device 45 is configured to detect the temperature of the brake pad 3. The control device 46 is signal-connected to the temperature detection device 45, the first switching valve 44, and the second switching valve 47, and controls the first switching valve 44 and the second switching valve 47 to open when the temperature detection device 45 detects that the temperature of the brake pad 3 exceeds a first preset value, or controls the first switching valve 44 and the second switching valve 47 to close when the temperature detection device 45 detects that the temperature of the brake pad 3 is less than a second preset value.

[0065] By providing the first switching valve 44, the temperature detection device 45, the control device 46, and the second switching valve 47, the temperature of the brake pad 3 can be detected in real time, and the opening or closing of the first switching valve 44 and the second switching valve 47 can be automatically controlled according to the real-time temperature of the brake pad 3, realizing the automatic discharge and drainage of the coolant, thereby realizing automatic cooling, effectively ensuring the working temperature of the brake pad 3, and preventing the brake pad 3 from being damaged due to high temperature.

[0066] Grooves can be provided on the brake pad 3, and the temperature detection device 45 is installed in the grooves.

[0067] The control device 46 can also be installed in the grooves together with the temperature detection device 45, or installed in other convenient positions.

[0068] The temperature detection device 45 can be a temperature sensor, etc.

[0069] In some embodiments, the cooling device 4 further includes a heat exchange device 48 and a third delivery pipe 49. The heat exchange device 48 is configured to cool the coolant. The outlet of the second delivery pipe 43 is connected to the inlet of the heat exchange device 48, and the third delivery pipe 49 communicates the outlet of the heat exchange device 48 and the storage tank 41.

[0070] By providing the heat exchange device 48, the coolant discharged from the second delivery pipe 43 can be cooled, and the cooled coolant can be delivered into the storage tank 41 through the third delivery pipe 49, thereby realizing the recycling of the coolant.

[0071] In some embodiments, the brake pads 3 are made of a metallic material.

[0072] In the embodiments provided by the present invention, the braking device includes a cooling device 4 for cooling the brake pads 3. Therefore, there can be more choices for the manufacturing material of the brake pads 3, which are not limited to high-temperature resistant materials with relatively high prices. For example, they can be made of a metallic material to reduce the manufacturing cost of the brake pads 3.

[0073] In the embodiments of the present invention, the brake disc 1 can adopt a solid structure.

[0074] The following Figures 1 to 6 will describe the structure and working process of an embodiment of the braking device of the present invention with reference to the

[0075] The braking device includes a brake disc 1, a friction part 2, brake pads 3, and a cooling device 4.

[0076] As Figure 1 shown, the brake pads 3 are installed on the edge of the brake disc 1, and the two brake pads 3 sandwich the brake disc 1 therebetween.

[0077] In the embodiment as Figure 1 shown, the brake pads 3 are arc-shaped block structures. In other embodiments, the brake pads 3 can also be circular disc-shaped and arranged on the side surface of the brake disc 1. Alternatively, the brake pads 3 can also be in other feasible shapes.

[0078] As Figure 2 shown, the friction parts 2 are respectively installed on both end faces of the brake disc 1.

[0079] As Figure 3 shown, a cavity 31 is provided inside the brake pads 3. The brake pads 3 include a first side wall 32 and a second side wall 33, and the cavity 31 is located between the first side wall 32 and the second side wall 33.

[0080] As Figure 4 shown, it is a top view of the brake pads 3, and the first side wall 32 can be seen.

[0081] As Figure 5As shown in the figure, the cooling device 4 includes a storage tank 41, a first delivery pipe 42, a second delivery pipe 43, a first switching valve 44, a temperature detection device 45, a control device 46, a second switching valve 47, a heat exchange device 48, and a third delivery pipe 49. A first through hole 34 and a second through hole 35 are provided on the first side wall 32 of the brake pad 3.

[0082] The first delivery pipe 42 is connected between the storage tank 41 and the first through hole 34, and the second delivery pipe 43 is connected between the second through hole 35 and the heat exchange device 48. The third delivery pipe 49 communicates the heat exchange device 48 and the storage tank 41. The control device 46 is in signal connection with the first switching valve 44, the temperature detection device 45, and the second switching valve 47. Among them, a pump is provided in the storage tank 41 to drive the flow of the coolant.

[0083] When the braking device is on standby, both the first switching valve 44 and the second switching valve 47 are in the closed state;

[0084] After stepping on the brake, the braking device starts to work. The brake cylinder pushes the inner brake pad 3 against the friction part 2, and the outer brake pad 3 starts to pull back. The two brake pads 3 on both sides simultaneously clamp the friction part 2 on the outside of the brake disc 1 to start frictional braking. A large amount of heat is generated by the friction, which will cause the temperature of the brake pad 3 to rise continuously. The temperature detection device 45 detects the temperature of the brake pad 3 in real time. When the temperature of the brake pad 3 exceeds the first preset value, the control device 46 controls the first switching valve 44 to open, and the first delivery pipe 42 starts to deliver the coolant into the cavity 31 of the brake pad 3 to cool down the brake pad 3. At the same time, the second switching valve 47 can be opened synchronously so that the coolant with an increased temperature can be discharged in time. The new coolant continuously circulates in the cavity 31 to improve the cooling effect; or, the second switching valve 47 is opened after the first switching valve 44 is opened for a period of time to reserve time for the coolant to fill the cavity 31. After the second switching valve 47 is opened, the coolant discharged through the second delivery pipe 43 enters the heat exchange device 48 for heat exchange and cooling, and the cooled coolant returns to the storage tank 41 through the third delivery pipe 49 for standby.

[0085] The braking device provided by the present invention can be applied to disc brakes or drum brakes.

[0086] When applied to a disc brake, the friction part 2 is installed on the disc-shaped brake disc 1, the brake pad 3 adopts a hollow structure, and the cooling device 4 cools the brake pad 3.

[0087] When applied to a drum brake, the friction part 2 is installed on the inner side of the brake drum, the brake shoe adopts a hollow structure, and the cooling device cools the brake shoe.

[0088] Based on the above braking device, the present invention also proposes a vehicle, which includes the above braking device.

[0089] The braking device provided by the present invention can be applied to automobiles, trains, high-speed rails or bullet trains, etc.

[0090] The positive technical effects of the braking device in each of the above embodiments are equally applicable to vehicles and will not be elaborated here.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that without departing from the principle of the present invention, modifications can still be made to the specific implementation manners of the present invention or equivalent replacements can be made to some technical features, and these modifications and equivalent replacements should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A brake device, characterized in that: include: Brake disc (1); A friction part (2) mounted on the brake disc (1); A brake pad (3) configured to contact and rub against the friction portion (2); and A cooling device (4) is arranged on the brake pad (3) and is used to cool the brake pad (3).

2. The brake device according to claim 1, characterized in that: The brake device comprises two friction parts (2), and the two friction parts (2) are respectively mounted on the two side end surfaces of the brake disc (1).

3. The brake device according to claim 1, characterized in that: The friction part (2) comprises a friction plate and a first connecting member, the brake disc (1) is provided with a first mounting hole, the friction plate is provided with a second mounting hole, and the first connecting member passes through the second mounting hole and the first mounting hole to connect the friction plate and the brake disc (1).

4. The brake device according to claim 1, characterized in that: The friction part (2) comprises a friction material, a heat insulating material and an adhesive, and the friction material and the heat insulating material are bonded to both side end surfaces of the brake disc (1) via the adhesive.

5. The brake device according to claim 4, characterized in that: The friction part (2) also includes a second connecting member, the brake disc (1) is provided with a third mounting hole, the whole formed by the friction material, the thermal insulation material and the adhesive is provided with a fourth mounting hole, and the second connecting member passes through the fourth mounting hole and the third mounting hole to connect the friction material, the thermal insulation material, the adhesive and the brake disc (1).

6. The brake device according to claim 1, characterized in that: The friction part (2) comprises a friction material, a heat insulating material and an adhesive, and the friction material, the heat insulating material and the adhesive are integrally formed on both side end surfaces of the brake disc (1) by die-casting.

7. The brake device according to claim 1, characterized in that: The brake disc (1) and the friction portion (2) are integrally formed.

8. The brake device according to claim 1, characterized in that: The brake pad (3) is provided with a cavity (31) inside, and the first side wall (32) of the brake pad (3) is provided with a first through hole (34) connected to the cavity (31). The cooling device (4) comprises a storage box (41) and a first delivery pipe (42). Cooling liquid is stored in the storage box (41), and one end of the first delivery pipe (42) is connected to the storage box (41), and the other end is connected to the cavity (31) through the first through hole (34).

9. The brake device according to claim 8, characterized in that: The cooling device (4) further comprises a second delivery pipe (43); the first side wall (32) of the brake pad (3) is provided with a second through hole (35) communicating with the cavity (31); the second delivery pipe (43) is communicated with the cavity (31) through the second through hole (35); and the coolant in the cavity (31) is discharged through the second delivery pipe (43).

10. The brake device according to claim 9, characterized in that: The first side wall (32) is located on a side of the brake pad (3) away from the brake disc (1), the brake pad (3) further comprises a second side wall (33) close to the brake disc (1), and the cavity (31) is located between the first side wall (32) and the second side wall (33).

11. The brake device according to claim 10, characterized in that: The thickness of the first side wall (32) is smaller than the thickness of the second side wall (33).

12. The brake device according to claim 10, characterized in that: The brake pad (3) further comprises a support member (36) disposed in the cavity (31), wherein the support member (36) is supported between the first side wall (32) and the second side wall (33).

13. The brake device according to claim 9, characterized in that: The cooling device (4) further comprises a first switch valve (44), a temperature detection device (45), a control device (46) and a second switch valve (47); the first switch valve (44) is arranged on the delivery pipeline of the first delivery pipe (42); the second switch valve (47) is arranged on the delivery pipeline of the second delivery pipe (43); the temperature detection device (45) is configured to detect the temperature of the brake pad (3); the control device (46) is signal-connected to the temperature detection device (45), the first switch valve (44) and the second switch valve (47); and when the temperature detection device (45) detects that the temperature of the brake pad (3) exceeds a first preset value, the control device (46) controls the first switch valve (44) and the second switch valve (47) to open; or when the temperature detection device (45) detects that the temperature of the brake pad (3) is less than a second preset value, the control device (46) controls the first switch valve (44) and the second switch valve (47) to close.

14. The brake device according to claim 9, characterized in that: The cooling device (4) further comprises a heat exchange device (48) and a third delivery pipe (49), wherein the heat exchange device (48) is configured to cool the coolant, the outlet of the second delivery pipe (43) is connected to the inlet of the heat exchange device (48), and the third delivery pipe (49) connects the outlet of the heat exchange device (48) and the storage tank (41).

15. The brake device according to any one of claims 1 to 14, characterized in that: The brake pad (3) is made of metal material.

16. A vehicle, characterized in that: It comprises a brake device as claimed in any one of claims 1 to 15.

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