Heat exchange conduit, braking system and vehicle

Abstract

The application provides a heat exchange pipeline, a braking system and a vehicle, wherein the heat exchange pipeline comprises a pipeline collection shaft and a heat dissipation disc; the pipeline collection shaft has n flow cavities which are independent of each other, wherein n is an even number greater than or equal to 4, and the pipeline collection shaft is further provided with a plurality of first flow holes corresponding to the plurality of flow cavities; the pipeline collection shaft is perpendicular to the heat dissipation disc, and the heat dissipation disc comprises n / 2 heat dissipation pipes, and the ports of all the heat dissipation pipes are in communication with different flow cavities. The technical scheme of the application can effectively solve the problem of poor heat dissipation capacity of the braking system of the vehicle in the prior art.

Description

Technical Field

[0001] This invention relates to the field of vehicle braking systems, and more specifically, to a heat exchange pipeline, a braking system, and a vehicle. Background Technology

[0002] Currently, with the upgrading of braking systems from traditional braking to ABS, and then from ABS to EBS, and on this basis, the ESC function is being implemented, as stipulated in the national standard GB7258 "Technical Conditions for Safe Operation of Motor Vehicles" (GB7258-2017) are constantly being updated. GB7258-2017 stipulates that all dedicated school buses and dangerous goods transport trucks, as well as the front wheels of other passenger vehicles with a length greater than 9 meters, and all wheels of dangerous goods transport semi-trailers, three-axle flatbed and stake semi-trailers, should be equipped with disc brakes. Because disc brakes have higher heat dissipation efficiency than drum brakes and superior performance, disc brakes will become the mainstream in the future.

[0003] Although disc brakes are superior to drum brakes, axles using disc brakes are prone to high-temperature tire blowouts and fires due to the high temperatures, jeopardizing vehicle safety, cargo safety, and personal safety. Against this backdrop, a heat exchange system for trailer axle brakes and axle heads that can control high temperatures within a reasonable range during continuous long-distance braking is crucial for their normal operation.

[0004] Currently, there are roughly three ways in which heat is generated and dissipated through braking friction:

[0005] The first option is water cooling. Water spraying onto the brake discs can cause uneven temperature distribution and deformation, making water spraying unsuitable for disc brakes. Furthermore, water cooling is limited in icy areas of northern regions to prevent reduced friction and potential traffic accidents caused by icy or slippery roads.

[0006] The second type is air cooling; forced air cooling technology does not have much application space in open spaces, so the effect of air cooling on disc brakes is not good.

[0007] The third method uses a hydraulic retarder to reduce braking friction, but this structure makes the braking system very expensive. Summary of the Invention

[0008] The main objective of this invention is to provide a heat exchange pipeline, a braking system, and a vehicle to solve the problem of poor heat dissipation capacity in the braking system of vehicles in the prior art.

[0009] To achieve the above objectives, according to one aspect of the present invention, a heat exchange pipeline is provided, comprising: a pipeline manifold shaft having n independent flow chambers, wherein n is an even number greater than or equal to 4, and the pipeline manifold shaft also having a plurality of first flow holes corresponding to the plurality of flow chambers; a heat sink, the pipeline manifold shaft being perpendicular to the heat sink, the heat sink comprising n / 2 heat sink tubes, and the ports of all heat sink tubes being connected to different flow chambers.

[0010] In one embodiment, the pipeline manifold includes a hollow shaft with end faces at both ends and n / 2 intersecting partition walls disposed within the hollow shaft, the n / 2 partition walls dividing the cavity within the hollow shaft into n flow chambers.

[0011] In one embodiment, n second flow holes are arranged circumferentially on the side wall of the first end of the pipeline manifold shaft. The multiple second flow holes are arranged one-to-one with multiple flow cavities. The port of each heat dissipation pipe is connected to the corresponding second flow hole. Multiple first flow holes are located on the side wall of the second end of the pipeline manifold shaft.

[0012] In one embodiment, the heat dissipation pipe includes two functional pipes arranged in parallel, a transition bend connecting the two functional pipes, and two connecting pipes connecting the free ends of the two functional pipes. The connecting pipes are connected to the second flow hole, and the functional pipes include multiple interconnected bends.

[0013] In one embodiment, the heat dissipation pipes are coiled in a circumferential direction, and multiple heat dissipation pipes are arranged at intervals in a radial direction, with each heat dissipation pipe having the same shape of its functional tube.

[0014] In one embodiment, the heat sink further includes a heat-reinforcing tube, the two ports of which are connected to different flow cavities, and the flow cavities corresponding to the two ports of the heat-reinforcing tube are the same as the flow cavities corresponding to the two ports of one of the heat sinks.

[0015] According to another aspect of the present invention, a braking system is provided, comprising: a braking mechanism including a brake disc and a brake pad arranged opposite to each other, wherein an accommodating gap is formed between the outer surface of the brake pad and the inner surface of the brake disc; and a heat exchange pipeline, wherein the heat exchange pipeline is the aforementioned heat exchange pipeline, and a heat sink of the heat exchange pipeline is disposed within the accommodating gap of the braking mechanism.

[0016] In one embodiment, a heat sink is connected to a brake disc, there are two braking mechanisms, and two heat exchange pipes are correspondingly arranged for the braking mechanisms. The braking system also includes: a support shaft, the brake pads of the two braking mechanisms are pivotally mounted on both ends of the support shaft via bearings, the support shaft is a hollow shaft, the pipe confluence shaft of the heat exchange pipes is located inside the support shaft, each heat exchange pipe confluence shaft and the support shaft have n independent annular chambers, the sidewall of the confluence shaft and the sidewall of the support shaft form the cavity wall of the annular chamber, all the first flow holes of each confluence shaft correspond to different annular chambers on the same side of the support shaft, so that the n annular chambers on the same side form n / 2 groups of liquid exchange chambers; n / 2 circulating heat dissipation mechanisms, each circulating heat dissipation mechanism includes a circulating pipe, a circulating pump arranged on the circulating pipe, and a radiator arranged on the circulating pipe, the circulating pipe connects the two groups of liquid exchange chambers on both sides of the support shaft, and the circulating pipes of each circulating heat dissipation mechanism are not interconnected.

[0017] In one embodiment, two third flow holes are provided at the top of both ends of the support shaft, and the third flow holes are connected to one of the n annular chambers on one side of the support shaft.

[0018] In one embodiment, two annular chambers located at both ends of the n annular chambers on any side of the support shaft form a group of liquid exchange chambers, and the third flow hole communicates with one of the annular chambers in this group of liquid exchange chambers.

[0019] In one embodiment, a replenishment port is provided on the circulation pipeline connected to the third flow hole.

[0020] In one embodiment, the inner walls at both ends of the support shaft are provided with n annular ribs and a partition, and each annular rib is sealed to its corresponding pipeline assembly shaft by a sealing ring.

[0021] In one embodiment, liquids with different specific heat capacities circulate in the multiple heat dissipation pipes of the heat sink through the flow chamber of the corresponding pipe collection shaft, the corresponding annular chamber, and the corresponding circulating heat dissipation mechanism, and the boiling point of the liquid with the smaller specific heat capacity is greater than that of the liquid with the larger specific heat capacity.

[0022] According to another aspect of the present invention, a vehicle is provided, comprising: a vehicle body; and a braking system disposed on the vehicle body, wherein the braking system is the braking system described above.

[0023] According to a final aspect of the present invention, a vehicle is provided, comprising: a vehicle body; a braking system disposed on the vehicle body, the braking system being the aforementioned braking system; and a water tank disposed on the vehicle body, the water tank being connected to the inlet of a circulation pipe of a circulation cooling mechanism of the braking system, wherein liquid in the water tank flows into the circulation pipe through the inlet under negative pressure.

[0024] The technical solution of this invention places the heat exchange pipe's heat dissipation plate in the gap between the brake disc and brake pads. In use, low-temperature refrigerant is injected into the corresponding flow chamber through at least two first flow holes, allowing the refrigerant to fill multiple heat dissipation pipes corresponding to that flow chamber. These multiple heat dissipation pipes then absorb heat between the brake disc and brake pads, cooling them. The high-temperature refrigerant, after absorbing heat, is then discharged through the remaining flow chambers and finally flows out from the remaining first flow holes. Using this structure to dissipate heat from the braking system has several advantages: first, it does not cause deformation of the brake disc and brake pads; second, it is not limited by the environment and is suitable for cold northern regions; third, it provides good cooling in open spaces; and fourth, it is low-cost. Furthermore, and more importantly, in practical use, the multiple heat dissipation pipes need to be filled with liquid conductive media of different specific heat capacities. Selecting liquids with different specific heat capacities primarily aims to conduct heat from high-temperature areas to low-temperature areas, thereby effectively cooling the system. Furthermore, during normal braking or continuous small-amplitude braking, the different liquid conductive media can absorb heat together, thus achieving a good cooling effect. During emergency braking or continuous large-amplitude braking, due to the violent braking action, the disc brake rapidly generates high temperatures, exceeding the boiling point of one of the liquid conductive media. At this point, although the liquid conductive media vaporizes, the other liquid conductive media remain liquid and can still play a good role in absorbing heat, ensuring the cooling effect.

[0025] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0026] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a heat exchange pipeline according to the present invention is shown;

[0028] Figure 2 It shows Figure 1 Front view of the heat exchange piping;

[0029] Figure 3 It shows Figure 2 An enlarged structural diagram of point A in the heat exchange pipeline;

[0030] Figure 4 It shows Figure 1 A longitudinal section diagram of the heat exchange pipeline;

[0031] Figure 5 A front view of the braking system according to the present invention is shown;

[0032] Figure 6 It shows Figure 5 A cross-sectional view of the braking system along the HH direction;

[0033] Figure 7 It shows Figure 5 A cross-sectional view of the braking system along the JJ direction;

[0034] Figure 8 It shows Figure 5 Side view of the braking system;

[0035] Figure 9 It shows Figure 8 A partially enlarged cross-sectional view of the braking system along the LL direction; and

[0036] Figure 10 It shows Figure 8 A partially enlarged view of the cross-sectional view of the braking system along the GG direction.

[0037] The above figures include the following reference numerals:

[0038] 1. Annular chamber; 2. Liquid exchange chamber; 10. Pipeline manifold shaft; 11. Flow chamber; 12. First flow hole; 13. Hollow shaft; 14. Partition wall; 15. Second flow hole; 20. Heat sink; 21. Heat sink pipe; 211. Functional pipe; 212. Transition bend; 213. Connecting pipe; 30. Braking mechanism; 31. Brake disc; 32. Brake pad; 33. Accommodation gap; 40. Support shaft; 41. Third flow hole; 50. Bearing; 60. Heat exchange pipeline; 70. Circulating heat dissipation mechanism; 71. Circulating pipeline; 72. Circulating pump; 73. Radiator; 100. Annular rib; 110. Partition plate; 120. Sealing ring. Detailed Implementation

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] like Figures 1 to 4 As shown, the heat exchange piping in this embodiment includes a pipe manifold 10 and a heat sink 20. The pipe manifold 10 has four independent flow chambers 11, and four first flow holes 12 corresponding to the four flow chambers 11 are also provided on the pipe manifold 10. The pipe manifold 10 is perpendicular to the heat sink 20, which includes two heat dissipation pipes 21, and the ports of all the heat dissipation pipes 21 are connected to different flow chambers 11.

[0044] Applying the technical solution of this embodiment, the heat exchange pipe's heat sink 20 is positioned in the gap between the brake disc 31 and the brake pad 32. In use, low-temperature refrigerant is injected into the corresponding two flow chambers 11 through the two first flow holes 12, allowing the refrigerant to flow into the two heat dissipation pipes 21 corresponding to each flow chamber 11. The two heat dissipation pipes 21 then absorb heat between the brake disc 31 and the brake pad 32, cooling them down. The high-temperature refrigerant, after absorbing heat, is then discharged through the remaining two flow chambers 11 and finally flows out from the remaining two first flow holes 12. Using the above structure to dissipate heat from the braking system has the following advantages: First, it does not cause deformation of the brake disc 31 and brake pad 32; second, it is not limited by the environment and is suitable for cold northern regions; third, it provides good cooling effect in open spaces; and fourth, it is low-cost. Furthermore, and more importantly, in practical use, the two heat dissipation pipes 21 need to be filled with liquid conductive media of different specific heat capacities (i.e., one heat dissipation pipe 21 is filled with a first liquid conductive medium with a larger specific heat capacity, and the other heat dissipation pipe 21 is filled with a second liquid conductive medium with a smaller specific heat capacity, the boiling point of the second liquid conductive medium being greater than that of the first liquid conductive medium). The selection of liquids with different specific heat capacities is mainly to conduct heat from high-temperature areas to low-temperature areas, thereby effectively cooling the system. In addition, during normal braking or continuous small-amplitude braking, the first and second liquid conductive media can absorb heat together, achieving a good cooling effect. During emergency braking or continuous large-amplitude braking, due to the violent braking action, the disc brake rapidly generates high temperatures exceeding the boiling point of the first liquid conductive medium. Although the first liquid conductive medium vaporizes at this time, the second liquid conductive medium remains liquid and can still effectively absorb heat, ensuring a cooling effect.

[0045] The following details the effects of injecting liquids with different specific heat capacities into the two heat pipes 21:

[0046] When the heat exchange pipeline is specifically applied between the brake disc 31 and brake pad 32 in the heating system, one heat dissipation pipe 21 (hereinafter referred to as the first heat dissipation pipe) is located near the center of the brake disc 31 and brake pad 32 and is filled with the second conductive medium, while the other heat dissipation pipe 21 (hereinafter referred to as the second heat dissipation pipe) is located near the edge of the brake disc 31 and brake pad 32 and is filled with the first conductive medium. When the braking system is working, due to the lower specific heat capacity of the second conductive medium, the temperature in the central area where the second heat dissipation pipe is located is high. Conversely, due to the higher specific heat capacity of the first conductive medium, the temperature in the edge area where the first heat dissipation pipe is located is low. Thus, heat from the central area is directed to the edge area. Furthermore, because the first conductive medium has a higher specific heat capacity, it heats up slowly. With the flow of the first conductive medium, it can quickly carry away heat from the edge area, thereby ensuring a cooling effect.

[0047] It should be noted that in other embodiments not shown in the figure, the number of flow cavities 11 can be an even number greater than 4.

[0048] like Figures 2 to 4 As shown, in this embodiment, the pipeline manifold 10 includes a hollow shaft 13 with end faces at both ends and two intersecting partition walls 14 disposed within the hollow shaft 13. The two partition walls 14 divide the cavity within the hollow shaft 13 into four flow chambers 11. The above structure is simple and easy to manufacture.

[0049] like Figure 2 and Figure 3 As shown, in this embodiment, four circumferentially arranged second flow holes 15 are provided on the side wall of the first end of the pipeline manifold 10. The four second flow holes 15 correspond one-to-one with the four flow cavities 11. The port of each heat dissipation pipe 21 is connected to the corresponding second flow hole 15. The four first flow holes 12 are located on the side wall of the second end of the pipeline manifold 10. The above structure is simple and easy to manufacture.

[0050] like Figure 2 and Figure 3 As shown, in this embodiment, the heat dissipation pipe 21 includes two parallel functional pipes 211, a transition bend 212 connecting the two functional pipes 211, and two connecting pipes 213 connecting the free ends of the two functional pipes 211. The connecting pipes 213 are connected to the second flow hole 15. The functional pipes 211 include multiple interconnected bends. This structure maximizes the length of the heat dissipation pipe 21, thereby improving the heat absorption capacity of the heat exchange pipeline and effectively controlling the temperature of the braking system.

[0051] like Figure 2 As shown, in this embodiment, the heat dissipation pipe 21 is coiled circumferentially, and two heat dissipation pipes 21 are arranged radially at intervals, with the functional tubes 211 of each heat dissipation pipe having the same shape. This structure ensures a reasonable arrangement of the two heat dissipation pipes 21, maximizing the length of each heat dissipation pipe 21, enhancing the heat absorption capacity of the heat exchange pipeline, and effectively controlling the temperature of the braking system. It should be noted that the outer heat dissipation pipe 21 is filled with pure water, while the inner heat dissipation pipe 21 is filled with a diluted solution (e.g., ethylene glycol, industrial salts, or glycerin solution, with a boiling point greater than 150°C).

[0052] In this embodiment, the four flow chambers 11 are respectively the first flow chamber, the second flow chamber, the third flow chamber and the fourth flow chamber, and the two heat dissipation pipes 21 are respectively the first heat dissipation pipe and the second heat dissipation pipe. The two ports of the first heat dissipation pipe are respectively connected to the first flow chamber and the second flow chamber, and the two ports of the second heat dissipation pipe are respectively connected to the third flow chamber and the fourth flow chamber. The first heat dissipation pipe is filled with a first liquid conductive medium, and the second heat dissipation pipe is filled with a second liquid conductive medium.

[0053] To further enhance heat dissipation, in other embodiments not shown in the figures, the heat sink 20 also includes a reinforcing heat dissipation pipe. The two ports of the reinforcing heat dissipation pipe are connected to different flow cavities 11, and the flow cavities 11 corresponding to the two ports of the reinforcing heat dissipation pipe are the same as those corresponding to the two ports of one of the heat dissipation pipes 21. Specifically, the connection method between the two ports of the reinforcing heat dissipation pipe and the pipe assembly shaft 10 is either the same as the connection method of the first heat dissipation pipe, and the liquid conduction medium in the reinforcing heat dissipation pipe is the same as the liquid conduction medium in the first heat dissipation pipe; or the connection method is the same as the connection method of the second heat dissipation pipe, and the liquid conduction medium in the reinforcing heat dissipation pipe is the same as the liquid conduction medium in the second heat dissipation pipe. This structure can further enhance the heat dissipation effect and effectively control the temperature of the braking system.

[0054] like Figures 5 to 10 As shown, this application also provides a braking system. An embodiment of the braking system according to this application includes a braking mechanism 30 and a heat exchange pipeline 60. The braking mechanism 30 includes a brake disc 31 and brake pads 32 arranged opposite to each other, with a receiving gap 33 between the outer surface of the brake pads 32 and the inner surface of the brake disc 31. The heat exchange pipeline 60 is the aforementioned heat exchange pipeline, and its heat dissipation plate 20 is disposed within the receiving gap 33 of the braking mechanism 30. The aforementioned heat exchange pipeline 60 has the following advantages: First, it will not cause deformation of the brake disc 31 and brake pads 32; second, it is not limited by the environment and is suitable for cold northern regions; third, it has good cooling effect when used in open spaces; fourth, it has low cost; fifth, regardless of normal braking, continuous small-amplitude braking, emergency braking, or continuous large-amplitude braking, the heat exchange pipeline 60 can effectively absorb the heat generated by the braking mechanism, thereby reducing the temperature rise of the braking mechanism and ensuring safety. Therefore, the braking system having it also has the above advantages.

[0055] like Figures 5 to 10As shown, in this embodiment, the heat sink 20 is connected to the brake disc 31, there are two brake mechanisms 30, and two heat exchange pipes 60 are arranged corresponding to the brake mechanisms 30. The braking system also includes a support shaft 40 and two circulating heat dissipation mechanisms 70. The brake pads 32 of the two brake mechanisms 30 are pivotally mounted on both ends of the support shaft 40 via bearings 50. The support shaft 40 is a hollow shaft. The pipe confluence shaft 10 of the heat exchange pipes 60 is located inside the support shaft 40. Each heat exchange pipe confluence shaft 60 has four independent annular chambers 1 between its confluence shaft 10 and the support shaft 40. The sidewalls of the confluence shaft 10 and the support shaft 40 form the walls of the annular chambers 1. All the first flow holes 12 of each confluence shaft 10 correspond to different annular chambers 1 on the same side of the support shaft 40, so that the four annular chambers 1 on the same side form two sets of liquid exchange chambers 2. Each circulating heat dissipation mechanism 70 includes a circulating pipe 71, a circulating pump 72 mounted on the circulating pipe 71, and a radiator 73 mounted on the circulating pipe 71. The circulating pipe 71 connects the two sets of liquid exchange chambers 2 on both sides of the support shaft 40, and the circulating pipes 71 of each circulating heat dissipation mechanism 70 are not interconnected. In the above structure, the high-temperature refrigerant discharged from the heat exchange pipe 60 can be cooled by the radiator and then become a low-temperature refrigerant, which is then recirculated into the heat exchange pipe 60, so that the heat exchange pipe 60 can continuously dissipate heat for the braking mechanism 30, thereby ensuring the heat dissipation effect. In addition, the heat dissipation pipes in the two heat exchange pipes 60 that flow with the same refrigerant are pumped out and dissipated through the same circulating heat dissipation mechanism 70, which can effectively reduce the number of components in the braking system and reduce production costs.

[0056] Specifically, in this embodiment, the four first flow holes 12 are respectively the first through hole, second through hole, third through hole, and fourth through hole corresponding to the first flow cavity, second flow cavity, third flow cavity, and fourth flow cavity, respectively. The four annular chambers 1 are respectively the first annular chamber, second annular chamber, third annular chamber, and fourth annular chamber. The first annular chamber corresponds to the first through hole, the second annular chamber corresponds to the second through hole, the third annular chamber corresponds to the third through hole, and the fourth annular chamber corresponds to the fourth through hole. The first annular chamber and the fourth annular chamber form a first liquid exchange chamber, and the second annular chamber and the third annular chamber form a second liquid exchange chamber. The circulating heat dissipation mechanism 70 includes a first circulating heat dissipation mechanism connecting the first liquid exchange chambers on the left and right sides of the braking system and a second circulating heat dissipation mechanism connecting the second liquid exchange chambers on the left and right sides of the braking system.

[0057] The following is a brief introduction to the heat dissipation process:

[0058] In use, the first liquid conduction medium sequentially passes through the circulation pump 72 of the first circulating heat dissipation mechanism, the fourth annular chamber on the left, the fourth through hole on the left, the fourth flow cavity on the left, the first heat dissipation pipe of the heat dissipation plate on the left, the first flow cavity on the left, the first through hole on the left, the first annular chamber on the left, the radiator 73 of the first circulating heat dissipation mechanism, the fourth annular chamber on the right, the fourth through hole on the right, the fourth flow cavity on the right, the first heat dissipation pipe of the heat dissipation plate on the right, the first flow cavity on the right, the first through hole on the right, the first annular chamber on the right, the radiator 73 of the first circulating heat dissipation mechanism, and finally returns to the circulation pump 72, thus circulating. The second liquid conduction medium sequentially passes through the circulation pump 72 of the second circulating heat dissipation mechanism, the third annular chamber on the left, the third through hole on the left, the third flow chamber on the left, the second heat dissipation pipe of the heat dissipation plate on the left, the second flow chamber on the left, the second through hole on the left, the second annular chamber on the left, the radiator 73 of the second circulating heat dissipation mechanism, the third annular chamber on the right, the third through hole on the right, the third flow chamber on the right, the second heat dissipation pipe of the heat dissipation plate on the right, the second flow chamber on the right, the second through hole on the right, the second annular chamber on the right, the radiator 73 of the second circulating heat dissipation mechanism, and finally returns to the circulation pump 72, thus circulating. It should be noted that the radiator of the first circulating heat dissipation mechanism and the radiator of the second circulating heat dissipation mechanism can be the same radiator or different radiators. The radiator adopts a parallel flow radiator, in which heat is dissipated into the air through convection and the action of the cooling motor.

[0059] During emergency braking or sustained, sharp braking, the disc brake rapidly generates high temperatures due to the violent braking action. These temperatures exceed the boiling point of the first liquid conduction medium, causing it to vaporize. This vapor lock in the lines may affect circulation. To address this issue, such as... Figure 5 and Figure 10 As shown, in this embodiment, two third flow holes 41 are provided at the top of both ends of the support shaft 40. The third flow holes 41 are connected to one of the four annular chambers 1 on one side of the support shaft 40. It should be noted that the annular chamber 1 corresponding to the third flow hole 41 should be filled with a first liquid conductive medium. In this way, once the first liquid conductive medium vaporizes, the gas will be ejected through the third flow hole 41, preventing gas lock.

[0060] like Figure 10As shown, in this embodiment, two annular chambers 1 at both ends of the four annular chambers 1 on any side of the support shaft 40 form a group of liquid exchange chambers 2, and the third flow hole 41 communicates with one of the annular chambers 1 in this group of liquid exchange chambers 2. Specifically, in this embodiment, the first annular chamber, the second annular chamber, the third annular chamber, and the fourth annular chamber are arranged sequentially along the axial direction of the support shaft 40, and the third flow hole 41 communicates with the first annular chamber. The first and fourth annular chambers are filled with a first liquid conduction medium, and the second and third annular chambers are filled with a second liquid conduction medium. The above arrangement prevents the first liquid conduction medium from forming a gaseous state in the cross-flow management, and it can only be effectively vaporized at the location of the third flow hole 41.

[0061] Since some of the first liquid conduction medium will vaporize and be discharged from the braking system, in order to replenish the first liquid conduction medium, in this embodiment, a liquid replenishment port is provided on the circulation pipeline 71 connected to the third flow hole 41.

[0062] like Figure 9 and Figure 10 As shown, in this embodiment, the inner walls at both ends of the support shaft 40 are provided with four annular ribs 100 and a partition 110. Each annular rib 100 is sealed to its corresponding pipeline assembly shaft 10 by a sealing ring 120. The above structure is simple and can effectively separate multiple annular chambers 1, preventing the first liquid conduction medium and the second liquid conduction medium from mixing.

[0063] This application also provides a vehicle, an embodiment of which (not shown in the figures) includes a vehicle body and a braking system. The braking system is mounted on the vehicle body and is the braking system described above. Because the above-described braking system has the advantage of low temperature rise, the vehicle equipped with this braking system has high safety.

[0064] In this embodiment, the vehicle also includes a water tank, which is mounted on the vehicle body. The water tank is connected to the replenishment port of the circulation pipe 71 of the braking system's circulating cooling mechanism 70. Under negative pressure, the liquid in the water tank flows into the circulation pipe 71 through the replenishment port. This structure allows the first liquid conduction medium to be automatically replenished by negative pressure, eliminating the need for manual intervention or additional pumps, thereby reducing production costs.

[0065] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0066] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0067] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0068] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A braking system, characterized in that, include: Braking mechanism (30) includes a brake disc (31) and a brake pad (32) arranged opposite to each other, and there is a receiving gap (33) between the outer surface of the brake pad (32) and the inner surface of the brake disc (31). A heat exchange pipeline (60) includes: a pipeline manifold (10) having n independent flow chambers (11) within it, where n is an even number greater than or equal to 4; the pipeline manifold (10) also has a plurality of first flow holes (12) corresponding to the plurality of flow chambers (11); a heat sink (20) having the pipeline manifold (10) perpendicular to it; the heat sink (20) including n / 2 heat sink pipes (21), the ports of all the heat sink pipes (21) being connected to different flow chambers (11); the heat sink (20) of the heat exchange pipeline (60) being disposed within the receiving gap (33) of the braking mechanism (30); wherein, The heat sink (20) is connected to the brake disc (31), there are two brake mechanisms (30), and two heat exchange pipes (60) are provided corresponding to the brake mechanisms (30). The braking system also includes: The support shaft (40) has two brake pads (32) of the two braking mechanisms (30) pivotally mounted on both ends of the support shaft (40) via bearings (50). The support shaft (40) is a hollow shaft. The pipe confluence shaft (10) of the heat exchange pipe (60) is located inside the support shaft (40). Each pipe confluence shaft (10) of the heat exchange pipe (60) has n independent annular chambers (1) between it and the support shaft (40). The sidewall of the pipe confluence shaft (10) and the sidewall of the support shaft (40) form the cavity wall of the annular chamber (1). All the first flow holes (12) of each pipe confluence shaft (10) correspond to different annular chambers (1) on the same side of the support shaft (40), so that the n annular chambers (1) on the same side form n / 2 groups of liquid exchange chambers (2). n / 2 circulating heat dissipation mechanisms (70), each of the circulating heat dissipation mechanisms (70) includes a circulating pipe (71), a circulating pump (72) disposed on the circulating pipe (71), and a radiator (73) disposed on the circulating pipe (71). The circulating pipe (71) connects the two sets of liquid exchange chambers (2) on both sides of the support shaft (40), and the circulating pipes (71) of each of the circulating heat dissipation mechanisms (70) are not connected to each other.

2. The braking system according to claim 1, characterized in that, The pipeline converging shaft (10) includes a hollow shaft (13) with end faces at both ends and n / 2 intersecting partition walls (14) disposed within the hollow shaft (13), the n / 2 partition walls (14) dividing the cavity within the hollow shaft (13) into n flow chambers (11).

3. The braking system according to claim 2, characterized in that, The first end of the pipeline converging shaft (10) is provided with n second flow holes (15) arranged in a circumferential direction. The multiple second flow holes (15) are provided in a one-to-one correspondence with the multiple flow cavities (11). The port of each heat dissipation pipe (21) is connected to the corresponding second flow hole (15). The multiple first flow holes (12) are located on the side wall of the second end of the pipeline converging shaft (10).

4. The braking system according to claim 3, characterized in that, The heat dissipation pipe (21) includes two functional pipes (211) arranged in parallel, a transition bend (212) connecting the two functional pipes (211), and two connecting pipes (213) connecting the free ends of the two functional pipes (211). The connecting pipes (213) are connected to the second flow hole (15). The functional pipe (211) includes multiple interconnected bends.

5. The braking system according to claim 4, characterized in that, The heat dissipation pipe (21) is coiled in the circumferential direction, and multiple heat dissipation pipes (21) are arranged at intervals in the radial direction, and the functional pipes (211) of each heat dissipation pipe (21) have the same shape.

6. The braking system according to claim 1, characterized in that, The heat sink (20) also includes an enhanced heat sink tube, the two ports of which are connected to different flow cavities (11), and the flow cavities (11) corresponding to the two ports of the enhanced heat sink tube are the same as the flow cavities (11) corresponding to the two ports of one of the heat sink tubes (21).

7. The braking system according to claim 1, characterized in that, The top of both ends of the support shaft (40) is provided with two third flow holes (41), and the third flow holes (41) are connected to one of the n annular chambers (1) on one side of the support shaft (40).

8. The braking system according to claim 7, characterized in that, Two of the n annular chambers (1) on either side of the support shaft (40) form a group of liquid exchange chambers (2), and the third flow hole (41) is connected to one of the annular chambers (1) in the group of liquid exchange chambers (2).

9. The braking system according to claim 7, characterized in that, A liquid replenishment port is provided on the circulation pipeline (71) that is connected to the third flow hole (41).

10. The braking system according to claim 1, characterized in that, The inner walls at both ends of the support shaft (40) are provided with n annular ribs (100) and a partition (110), and each annular rib (100) is sealed with its corresponding pipeline collection shaft (10) by a sealing ring (120).

11. The braking system according to any one of claims 1 to 10, characterized in that, In the multiple heat dissipation pipes (21) of the heat dissipation plate (20), liquids with different specific heat capacities are circulated through the flow cavity (11) of the corresponding pipe converging shaft (10), the corresponding annular chamber (1) and the corresponding circulating heat dissipation mechanism (70), and the boiling point of the liquid with a small specific heat capacity is greater than that of the liquid with a large specific heat capacity.

12. A vehicle comprising: The vehicle body; A braking system, disposed on the vehicle body, characterized in that the braking system is the braking system according to any one of claims 1 to 11.

13. A vehicle comprising: The vehicle body; A braking system, disposed on the vehicle body, characterized in that the braking system is the braking system as described in claim 9; A water tank is installed on the vehicle body. The water tank is connected to the liquid inlet of the circulation pipe (71) of the circulation cooling mechanism (70) of the braking system. Under the action of negative pressure, the liquid in the water tank flows into the circulation pipe (71) through the liquid inlet.

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