Low-temperature anti-leakage brake hose assembly for new energy automobile

Abstract

The invention relates to the technical field of brake hoses of new energy automobiles, and particularly discloses a low-temperature anti-leakage brake hose assembly for a new energy automobile, which comprises a mounting seat and a mounting joint fixedly connected to the mounting seat, and the mounting joint is connected with a hose main body through a connecting joint. The connecting joints are arranged at the two ends of the hose body, extrusion rings are arranged on the inner sides of the mounting joints and the outer sides of the connecting joints, and the mounting joints are arranged on the outer sides of the connecting joints in a sleeving mode. The brake hose assembly can be rapidly connected with other components, the brake hose can be more tightly connected with other components through the first memory alloy spring and the second memory alloy spring at the low temperature, then the leakage situation can be prevented, in addition, in the running process of a new energy automobile, generated shaking can be fed back to the brake hose assembly, and the safety of the new energy automobile is improved. And the connection tightness of the brake hose and other components is enhanced.

Description

Technical Field

[0001] This invention relates to the field of brake hose technology for new energy vehicles, specifically a low-temperature leak-proof brake hose assembly for new energy vehicles. Background Technology

[0002] The rapid development of the new energy vehicle industry is driving the upgrading of vehicle braking systems towards electro-hydraulic braking, electronic parking brake, high pressure transmission, and stable operation over a wide temperature range. As a core flexible component in the braking system that transmits hydraulic pressure and connects the brake master cylinder and the wheel-side actuator, the brake hose assembly must meet comprehensive performance requirements such as high pressure pulse, high and low temperature cycle, vibration fatigue, and resistance to brake fluid corrosion throughout the entire life cycle of the vehicle. Its structural reliability and sealing stability are directly related to the driving safety of the entire vehicle.

[0003] Compared to traditional fuel vehicles, new energy vehicles place more stringent adaptation requirements on brake hose assemblies. Specifically, the system operates at higher pressures, responds faster, and experiences greater temperature fluctuations in the hoses due to frequent energy recovery and braking switching. Furthermore, the vehicles are used in complex environments such as cold regions with low temperatures, high altitudes with low pressure, and humid and hot aging conditions, requiring the hose assembly to maintain stable pressure transmission and reliable sealing performance under all operating conditions.

[0004] Low-temperature environmental adaptability and low-temperature leak prevention capability are key technical indicators of brake hose assemblies for new energy vehicles. In low-temperature environments, brake hose assemblies for new energy vehicles are affected by thermal expansion and contraction, and their joints are prone to loosening, which can easily lead to leakage at the joints where the brake hoses are connected to other components.

[0005] Therefore, a low-temperature leak-proof brake hose assembly for new energy vehicles is needed to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a low-temperature leak-proof brake hose assembly for new energy vehicles, in order to solve the problem mentioned in the background art that existing brake hose assemblies for new energy vehicles are prone to leakage at low temperatures.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A low-temperature leak-proof brake hose assembly for new energy vehicles includes a mounting base and a mounting connector fixedly connected to the mounting base. The mounting connector is connected to the hose body via a connecting connector. The connecting connector is provided at both ends of the hose body, and a compression ring is provided on the inner side of the mounting connector and the outer side of the connecting connector. The mounting connector is sleeved on the outer side of the connecting connector, and a rubber sealing gasket is provided between the compression ring on the mounting connector and the compression ring on the connecting connector. The corresponding connecting connector is compressed by a limiting compression mechanism on the mounting connector, and the limiting compression mechanism includes a pressure receiving ring fixedly connected to the outer side of the connecting connector. The mounting connector is provided with a vibration feedback pressure compensation mechanism to increase the tightness of its connection with the connecting connector, and the vibration feedback pressure compensation mechanism includes an annular fixed magnet fixedly connected to the outer side of the mounting connector.

[0009] Preferably, the pressure ring has a frustum structure, and its conical surface is positioned away from the compression ring.

[0010] Preferably, the limiting extrusion mechanism further includes a cylindrical piston cavity disposed on the mounting joint, and three cylindrical piston cavities are distributed at equal angles about the axis of the mounting joint. The piston end of the piston column is seamlessly slidably connected inside the cylindrical piston cavity, and the rod end of the piston column seamlessly slidably penetrates into the interior of the mounting joint. The cylindrical piston cavity is provided with a pressure relief hole penetrating to the outside of the mounting joint, and an extrusion block is fixedly connected to the rod end of the piston column.

[0011] Preferably, the side of the extrusion block away from the opening end of the mounting joint is provided with a beveled surface facing the axis of the mounting joint, and the inner side of the mounting joint is provided with a groove corresponding to the extrusion block. A memory alloy spring 2 is provided between the extrusion block and the corresponding groove, which is movably nested on the outside of the piston rod end.

[0012] Preferably, the limiting and pressing mechanism further includes a strip-shaped piston cavity disposed within the mounting joint, and the distance between the strip-shaped piston cavity and the opening end of the mounting joint is greater than the distance between the columnar piston cavity and the opening end of the mounting joint. The strip-shaped piston cavity and the columnar piston cavity are arranged in a one-to-one correspondence, and the strip-shaped piston cavity is connected to the corresponding columnar piston cavity through an air passage. One end of a piston plate is seamlessly slidably connected inside the strip-shaped piston cavity, and a protrusion is provided on the other end of the piston plate. A strip-shaped through groove is opened on the mounting joint, extending into the interior of the strip-shaped piston cavity, and an actuating ring is sleeved on the outer side of the mounting joint. The protrusion on the piston plate passes through the corresponding strip-shaped through groove and is connected to the inner side of the actuating ring.

[0013] Preferably, the other end of the piston plate is provided with a limiting hole, and one end of a limiting rod extends movably into the limiting hole. The other end of the limiting rod is fixedly connected to the inner side of the strip-shaped piston cavity, and a memory alloy spring is provided between the inner side of the strip-shaped piston cavity and the other end of the piston plate, which is movably nested on the outside of the limiting rod.

[0014] Preferably, the pressure relief hole and the air passage are respectively located on both sides of the piston end on the corresponding piston rod.

[0015] Preferably, the vibration feedback pressure compensation mechanism further includes a piston ring tube fixedly connected to the outside of the mounting joint, and an annular piston disc seamlessly slidably connected to the piston ring tube inside. An annular support magnet is also movably nested on the outside of the mounting joint. A connecting column perpendicular to the annular piston disc is fixedly connected at equal angles on the annular piston disc, and the connecting column movably extends to the outside of the piston ring tube and connects to the annular support magnet. A one-way air inlet hole extending to the outside of the mounting joint is provided on the piston ring tube, and the one-way air inlet hole and the connecting column are respectively located on both sides of the annular piston disc. The piston ring tube is connected to the columnar piston cavity through a one-way exhaust hole.

[0016] Preferably, the inner side of the annular support magnet and the outer side of the annular fixed magnet are opposite magnetic poles.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the low-temperature leak-proof brake hose assembly for new energy vehicles can be quickly connected to other components, and at low temperatures, the shape memory alloy springs one and two enable the brake hose to be connected more tightly to other components, thereby preventing leakage. In addition, the vibrations that occur during the operation of the new energy vehicle can be fed back to the brake hose assembly, enhancing the tightness of the connection between the brake hose and other components.

[0018] 1. When it is necessary to connect the hose body to the installation connector, the gas in the strip piston chamber can be pushed into the columnar piston chamber by sliding the actuating ring, which can then cause the extrusion block to retract into the groove. At this time, both the memory alloy spring one and the memory alloy spring two are in a compressed state. After the installation connector is sleeved on the outside of the connection connector, the actuating ring is released. Under the reset action of the memory alloy spring one and the memory alloy spring two, the actuating ring and the extrusion block can be reset. At this time, the beveled surface of the extrusion block will contact the conical surface of the pressure ring. Through the extrusion of the memory alloy spring two, the two extrusion rings can tightly squeeze the sealing gasket, thereby making the installation connector and the connection connector stably and tightly connected.

[0019] 2. In low-temperature environments, the shape memory alloy spring one allows the gas in the cylindrical piston chamber to flow into the strip piston chamber, thereby causing the extrusion block to move towards the pressure ring. In addition, the shape memory alloy spring two gradually increases the spring pressure on the extrusion block, also causing the extrusion block to move towards the pressure ring. By using shape memory alloy spring one and shape memory alloy spring two to make the extrusion block move towards the pressure ring at low temperatures, the degree of compression of the sealing gasket by the two extrusion rings can be increased, thereby preventing leakage.

[0020] 3. When the brake hose assembly vibrates during the use of new energy vehicles, the first component to shift is the annular support magnet. Due to the mutual attraction between the annular support magnet and the annular fixed magnet, the annular support magnet will move back and forth. During this process, it will drive the annular piston disc to move back and forth through the connecting column. With the setting of one-way air inlet and one-way air outlet, external gas can be continuously delivered to the columnar piston chamber, which increases the pressure in the columnar piston chamber, thereby ensuring the degree of compression of the pressure ring by the compression block. In addition, when the pressure in the columnar piston chamber reaches a certain value, the pressure relief hole will gradually release the excess air pressure, thereby preventing the air pressure in the columnar piston chamber from becoming too high. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the connection structure between the mounting base and the connecting joint of the present invention;

[0023] Figure 3 This is a schematic diagram of a partial explosion structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram of point A in the middle;

[0025] Figure 5 For the present invention Figure 3 Enlarged structural diagram of point B;

[0026] Figure 6 This is a partial cross-sectional view of the present invention;

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram of point C;

[0028] Figure 8 This is a schematic cross-sectional view of the installation connector and connection connector of the present invention;

[0029] Figure 9 For the present invention Figure 8 A magnified structural diagram of point D in the middle.

[0030] In the diagram: 1. Mounting base; 2. Mounting connector; 3. Connecting connector; 4. Piston ring tube; 5. Annular support magnet; 6. Actuating ring; 7. Compression ring; 8. Pressure-bearing ring; 9. Sealing gasket; 10. Soft-release hole; 11. Connecting column; 12. One-way air inlet; 13. Strip-shaped piston chamber; 14. Piston plate; 15. Strip-shaped through groove; 16. Limiting hole; 17. Limiting rod; 18. Memory alloy spring one; 19. Columnar piston chamber; 20. Piston column; 21. Memory alloy spring two; 22. Compression block; 23. Air passage; 24. One-way exhaust hole; 25. Annular piston disc; 26. Annular fixing magnet; 27. Hose body. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0032] Please see Figures 1-9 The present invention provides the following technical solution:

[0033] Example 1: To address the problem of leakage in brake hose assemblies for new energy vehicles under low-temperature conditions, the following technical solution is provided: a low-temperature leak-proof brake hose assembly for new energy vehicles, comprising a mounting base 1 and a mounting connector 2 fixedly connected to the mounting base 1. The mounting connector 2 is connected to the hose body 27 via a connecting connector 3. The connecting connector 3 is provided at both ends of the hose body 27, and a compression ring 7 is provided on the inner side of the mounting connector 2 and the outer side of the connecting connector 3. The mounting connector 2 is sleeved on the outer side of the connecting connector 3, and a rubber sealing gasket 9 is provided between the compression ring 7 on the mounting connector 2 and the compression ring 7 on the connecting connector 3. The mounting connector 2 is compressed by a limiting compression mechanism, and the limiting compression mechanism includes a pressure ring 8 fixedly connected to the outer side of the connecting connector 3. The pressure ring 8 has a frustum structure, and its conical surface faces away from the compression ring 7.

[0034] The limiting compression mechanism also includes a cylindrical piston cavity 19 disposed on the mounting joint 2, and three cylindrical piston cavities 19 are distributed at equal angles about the axis of the mounting joint 2. The piston end of the piston column 20 is seamlessly slidably connected inside the cylindrical piston cavity 19, and the rod end of the piston column 20 seamlessly slidably penetrates into the interior of the mounting joint 2. The cylindrical piston cavity 19 is provided with a pressure relief hole 10 penetrating to the outside of the mounting joint 2. The rod end of the piston column 20 is fixedly connected to a compression block 22. The side of the compression block 22 away from the opening end of the mounting joint 2 is provided with a beveled surface facing the axis of the mounting joint 2, and the inner side of the mounting joint 2 is provided with grooves corresponding to the compression blocks 22. A memory alloy spring 21 is movably nested between the compression block 22 and the corresponding groove, which is located outside the rod end of the piston column 20. The limiting compression mechanism also includes a strip-shaped piston cavity 13 disposed in the mounting joint 2, and the distance between the strip-shaped piston cavity 13 and the opening end of the mounting joint 2 is greater than the distance between the cylindrical piston cavity 19 and the opening end of the mounting joint 2. The distance between the strip-shaped piston chamber 13 and the columnar piston chamber 19 is such that they correspond one-to-one. The strip-shaped piston chamber 13 is connected to the corresponding columnar piston chamber 19 through the air passage 23. One end of the piston plate 14 is seamlessly slidably connected inside the strip-shaped piston chamber 13, and a protrusion is provided on the other end of the piston plate 14. The mounting joint 2 is provided with a strip-shaped through groove 15 that extends into the inside of the strip-shaped piston chamber 13, and an actuating ring 6 is sleeved on the outside of the mounting joint 2. The protrusion on the piston plate 14 penetrates the corresponding strip-shaped piston chamber 19. The through groove 15 is connected to the inner side of the actuating ring 6. The other end of the piston plate 14 is provided with a limiting hole 16, and one end of the limiting rod 17 extends movably into the limiting hole 16. The other end of the limiting rod 17 is fixedly connected to the inner side of the strip piston cavity 13. A memory alloy spring 18 is provided between the inner side of the strip piston cavity 13 and the other end of the piston plate 14, which is movably nested on the outside of the limiting rod 17. The pressure relief hole 10 and the air passage 23 are respectively provided on both sides of the piston end on the corresponding piston column 20.

[0035] according to Figures 1-7 When in use, the sliding toggle ring 6 causes the piston plate 14 to move synchronously with it, and during the process, the memory alloy spring 18 is compressed.

[0036] When the piston plate 14 moves, the gas in the strip piston chamber 13 can be injected into the columnar piston chamber 19 through the air passage 23, which increases the pressure below the piston end on the piston column 20 and causes the piston column 20 to gradually approach the corresponding pressure relief hole 10.

[0037] As the piston rod 20 gradually approaches the corresponding pressure relief hole 10, the air pressure between the piston end of the piston rod 20 and the pressure relief hole 10 increases, causing the pressure relief hole 10 to release the gas in the columnar piston chamber 19.

[0038] During the above process, the extrusion block 22 connected to the piston column 20 will gradually retract into the corresponding groove, and the memory alloy spring 21 will be gradually compressed.

[0039] Then the connecting joint 3 on the hose body 27 is inserted into the mounting joint 2, so that the compression ring 7 on the mounting joint 2 and the compression ring 7 on the connecting joint 3 respectively compress the two sides of the sealing gasket 9;

[0040] When the actuating ring 6 is released, the actuating ring 6 will reset under the action of the memory alloy spring 18, and the pressing block 22 will reset under the action of the memory alloy spring 21.

[0041] During the resetting process of the actuating ring 6 and the squeezing block 22, some of the gas in the piston ring tube 4 will enter the cylindrical piston chamber 19 through the one-way exhaust hole 24 to replenish the missing gas pressure in the cylindrical piston chamber 19.

[0042] The gas flowing from the piston ring tube 4 to the cylindrical piston chamber 19 is replenished through the one-way air inlet 12.

[0043] In the above process, the brake hose assembly can be quickly connected to other components. In low-temperature environments, the shape memory alloy spring 18 and shape memory alloy spring 21 will cause the strip piston chamber 13 to tend to draw gas from the columnar piston chamber 19, and will cause the piston column 20 and the compression block 22 to tend to separate from each other. This will cause the compression block 22 to compress the pressure ring 8 more tightly. Through the contact connection between the conical surface of the pressure ring 8 and the oblique surface of the compression block 22, the two compression rings 7 can compress the sealing gasket 9 more tightly, thereby preventing leakage of the brake hose assembly in low-temperature environments.

[0044] Example 2: To solve the problem of leakage caused by loosening of the connection due to long-term vibration during use of the brake hose assembly of new energy vehicles, the following technical solution is provided: The mounting connector 2 is provided with a vibration feedback pressure compensation mechanism to increase the tightness of its connection with the connecting connector 3, and the vibration feedback pressure compensation mechanism includes an annular fixed magnet 26 fixedly connected to the outside of the mounting connector 2.

[0045] The vibration feedback pressure compensation mechanism also includes a piston ring tube 4 fixedly connected to the outside of the mounting joint 2, and an annular piston disc 25 seamlessly slidably connected inside the piston ring tube 4. An annular support magnet 5 is also movably nested on the outside of the mounting joint 2. A connecting column 11 perpendicular to the annular piston disc 25 is fixedly connected at equal angles on the annular piston disc 25. The connecting column 11 movably passes through to the outside of the piston ring tube 4 and connects to the annular support magnet 5. A one-way air inlet 12 is provided on the piston ring tube 4, which passes through to the outside of the mounting joint 2. The one-way air inlet 12 and the connecting column 11 are respectively located on both sides of the annular piston disc 25. The piston ring tube 4 is connected to the columnar piston cavity 19 through a one-way exhaust hole 24. The inner side of the annular support magnet 5 and the outer side of the annular fixed magnet 26 are opposite magnetic poles.

[0046] according to Figures 6-9 During the use of new energy vehicles, the brake hose assembly will inevitably vibrate. The vibration energy will preferentially cause the annular support magnet 5 to move relative to the annular fixed magnet 26. Since the inner side of the annular support magnet 5 and the annular fixed magnet 26 are opposite magnetic poles that attract each other, the annular support magnet 5 will move back and forth under the action of vibration energy.

[0047] When the annular support magnet 5 reciprocates, it will carry the annular piston disk 25 to reciprocate through the connecting column 11, thereby causing it to continuously draw in external gas through the one-way air inlet 12 and continuously deliver the gas to the columnar piston chamber 19 through the one-way exhaust port 24.

[0048] When the gas inside the cylindrical piston chamber 19 increases, the internal pressure increases, which in turn squeezes the piston column 20. This ensures the degree of compression between the compression block 22 connected to the piston column 20 and the pressure ring 8, preventing them from loosening. In other words, during vibration, feedback pressure can be provided to prevent the connection between the mounting connector 2 and the connecting connector 3 from becoming loose, thus ensuring the stability of the brake hose assembly for new energy vehicles.

[0049] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature leak-proof brake hose assembly for new energy vehicles, comprising a mounting base (1) and a mounting connector (2) fixedly connected to the mounting base (1), wherein the mounting connector (2) is connected to the hose body (27) via a connecting connector (3), characterized in that: The connecting joint (3) is provided at both ends of the hose body (27), and the inner side of the mounting joint (2) and the outer side of the connecting joint (3) are provided with compression rings (7). The mounting joint (2) is sleeved on the outer side of the connecting joint (3), and a rubber sealing gasket (9) is provided between the compression ring (7) on the mounting joint (2) and the compression ring (7) on the connecting joint (3). The corresponding connecting joint (3) is squeezed by the limiting compression mechanism on the mounting joint (2), and the limiting compression mechanism includes a pressure ring (8) fixedly connected to the outer side of the connecting joint (3). The mounting joint (2) is provided with a vibration feedback pressure compensation mechanism to increase the tightness of its connection with the connecting joint (3), and the vibration feedback pressure compensation mechanism includes an annular fixed magnet (26) fixedly connected to the outer side of the mounting joint (2).

2. The low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 1, characterized in that: The pressure ring (8) has a frustum structure, and its conical surface is set away from the compression ring (7).

3. A low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 2, characterized in that: The limiting extrusion mechanism also includes a columnar piston cavity (19) disposed on the mounting joint (2), and three columnar piston cavities (19) are distributed at equal angles about the axis of the mounting joint (2). The piston end of the piston column (20) is seamlessly slidably connected inside the columnar piston cavity (19), and the rod end of the piston column (20) seamlessly slidably penetrates into the interior of the mounting joint (2). A slow-release pressure hole (10) is provided on the columnar piston cavity (19) and penetrates into the exterior of the mounting joint (2). An extrusion block (22) is fixedly connected to the rod end of the piston column (20).

4. A low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 3, characterized in that: The extrusion block (22) has a beveled surface facing the axis of the mounting joint (2) on the side away from the opening end of the mounting joint (2), and the inner side of the mounting joint (2) has a groove corresponding to the extrusion block (22). A memory alloy spring (21) is movably nested on the outside of the piston rod end of the piston column (20) between the extrusion block (22) and the corresponding groove.

5. A low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 4, characterized in that: The limiting compression mechanism also includes a strip piston cavity (13) disposed in the mounting joint (2), and the distance between the strip piston cavity (13) and the opening end of the mounting joint (2) is greater than the distance between the columnar piston cavity (19) and the opening end of the mounting joint (2). The strip piston cavity (13) and the columnar piston cavity (19) are arranged in a one-to-one correspondence, and the strip piston cavity (13) is connected to the corresponding columnar piston cavity (19) through the air passage (23). One end of the piston plate (14) is seamlessly slidably connected in the strip piston cavity (13), and a protrusion is provided on the other end of the piston plate (14). A strip through groove (15) is opened on the mounting joint (2) and extends into the interior of the strip piston cavity (13). A toggle ring (6) is sleeved on the outer side of the mounting joint (2). The protrusion on the piston plate (14) passes through the corresponding strip through groove (15) and is connected to the inner side of the toggle ring (6).

6. A low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 5, characterized in that: The piston plate (14) is provided with a limiting hole (16) at the other end, and a limiting rod (17) extends movably into the limiting hole (16). The other end of the limiting rod (17) is fixedly connected to the inner side of the strip piston cavity (13), and a memory alloy spring (18) is provided between the inner side of the strip piston cavity (13) and the other end of the piston plate (14), which is movably nested on the outside of the limiting rod (17).

7. A low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 6, characterized in that: The pressure relief hole (10) and the air passage (23) are respectively located on both sides of the piston end of the corresponding piston column (20).

8. A low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 7, characterized in that: The vibration feedback pressure compensation mechanism also includes a piston ring tube (4) fixedly connected to the outside of the mounting joint (2), and an annular piston disc (25) seamlessly slidably connected to the piston ring tube (4). An annular support magnet (5) is also movably nested on the outside of the mounting joint (2). A connecting column (11) perpendicular to the annular piston disc (25) is fixedly connected at equal angles. The connecting column (11) movably penetrates to the outside of the piston ring tube (4) and connects to the annular support magnet (5). A one-way air inlet (12) penetrating to the outside of the mounting joint (2) is provided on the piston ring tube (4), and the one-way air inlet (12) and the connecting column (11) are respectively located on both sides of the annular piston disc (25). The piston ring tube (4) is connected to the columnar piston cavity (19) through a one-way exhaust hole (24).

9. A low-temperature leak-proof brake hose assembly for new energy vehicles according to claim 8, characterized in that: The inner side of the annular support magnet (5) and the outer side of the annular fixed magnet (26) are opposite magnetic poles.

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