Modular structure, shock absorber having modular structure, and vehicle having shock absorber

Abstract

A modular structure, comprising a connecting block (24), wherein at least one second flow portion is provided on the connecting block (24); two sides of the second flow portion are respectively provided with a first communication portion and a third communication portion; the first communication portion and the third communication portion are symmetrically arranged; and a first flow portion, the second flow portion and a third flow portion make oil passages communicate, so as to meet the flow requirements of the oil passages of a shock absorber. The modular structure has a connection block of a highly integrated module, thereby facilitating later inspection and maintenance of the shock absorber, and reducing the failure rate of the entire shock absorber. Further comprised are a shock absorber having a modular structure and a vehicle having a shock absorber.

Description

Module structure, shock absorber with module structure and vehicle with shock absorber TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile shock absorbers, in particular to a module structure, a shock absorber with the module structure and a vehicle with the shock absorber. BACKGROUND

[0002] With the development of human society, the automobile industry is accelerating the trend of developing new energy vehicles. Vehicle manufacturers are constantly improving the quality of automobile parts. The automobile shock absorber has a very important influence on the stability and smoothness of automobile control, and plays an important role in the competition of the automobile industry.

[0003] The use of shock absorbers on automobile suspensions requires the cooperation of electromagnetic valves. In the shock absorber, the electromagnetic valve is used to control the inflow and outflow of oil and gas, thereby adjusting the damping force of the shock absorber to control and reduce the vibration of the vehicle body.

[0004] In the prior art, such as the Chinese patent with the application number 2023227521.3 and the authorization announcement number CN221443184U, named a stroke-sensitive automobile shock absorber, the above-mentioned patent discloses a stroke-sensitive automobile shock absorber, which comprises a shock absorber outer cylinder and a shock absorber inner cylinder. The upper end of the shock absorber outer cylinder is provided with a cover, and the shock absorber outer cylinder is provided with the shock absorber inner cylinder. The lower end of the shock absorber inner cylinder is connected to the lower end of the shock absorber outer cylinder through a bottom valve system. The shock absorber inner cylinder is provided with a piston rod, and the shock absorber inner cylinder protrudes outward in the axial direction by a fixed depth, forming one or more oil guide grooves. The shape of each oil guide groove has a constant or variable cross-sectional area in the radial direction, and each oil guide groove has different or the same length.

[0005] In the above-mentioned patent, the cross-sectional area, length and number of the oil guide grooves are used to control the damping force at different stroke positions, thereby obtaining a better driving experience. It is known that the automobile shock absorbers in the prior art, such as the above-mentioned patent, all need to pass through the oil circuit to realize the damping operation of the shock absorber. However, the bottom of the shock absorber in the prior art needs to be provided with a complex structure to realize the flow of the oil circuit. When one of the structures is damaged, the entire shock absorber will be difficult to work normally.

[0006] How to set a high-integration module on the shock absorber to realize the flow of the oil circuit is a technical problem to be solved. SUMMARY

[0007] The purpose of the present application is to provide a module structure, a shock absorber with the module structure and a vehicle with the shock absorber to solve the problems raised in the background.

[0008] To achieve the above object, the present application provides the following technical solutions: a module structure comprising a connecting block, at least one second flow passage is formed on the connecting block, a first communication passage and a third communication passage are respectively arranged on both sides of the second flow passage, and the first communication passage and the third communication passage are symmetrically arranged.

[0009] The first flow passage, the second flow passage and the third flow passage are connected to meet the oil passage flow requirement of the shock absorber.

[0010] Further, the first flow passage comprises a first channel formed on the side wall of the connecting block, and the first channel is in communication with the top of the connecting block.

[0011] Further, the second flow passage comprises a second channel formed on the connecting block, and the second channel is in communication with the inside of the connecting block through an oil inlet.

[0012] Further, the third flow passage comprises a third channel formed on the connecting block, and the third channel is in communication with the inside of the connecting block through a fifth oil hole.

[0013] Further, the bottom of the connecting block is further provided with an annular channel, and the second channel is in communication with the annular channel.

[0014] A shock absorber with a module structure comprises the module structure described above, further comprises a liquid storage cylinder and a working cylinder installed in the liquid storage cylinder, a piston rod is vertically and slidably connected in the working cylinder, a first piston is arranged at the bottom of the piston rod, and an active cavity is formed between the first piston and the working cylinder; a connecting block is installed at the bottom of the liquid storage cylinder, and a power mechanism is arranged in the connecting block, the power mechanism drives the shock absorber oil in the liquid storage cylinder to flow in the active cavity, so that the pressure in the active cavity changes, thereby realizing the active up and down movement of the vehicle wheel.

[0015] Further, the active cavity comprises a compression cavity and a recovery cavity.

[0016] Further, a partition plate is fixedly connected in the connecting block, an energy accumulator cavity is formed between the partition plate and the connecting block, the compression cavity and the energy accumulator cavity are separated by the partition plate, that is, the compression cavity, the recovery cavity and the energy accumulator cavity are independent cavities.

[0017] Further, a first outer valve sleeve and a second outer valve sleeve are arranged on the outside of the liquid storage cylinder, a compression CDC electromagnetic valve is arranged in the first outer valve sleeve, and a recovery CDC electromagnetic valve is arranged in the second outer valve sleeve; the compression cavity is in communication with the compression CDC electromagnetic valve through a fourth oil hole.

[0018] Further, the energy accumulator cavity is in communication with the compression CDC electromagnetic valve through a third oil hole, and a second one-way valve is arranged between the third oil hole and the compression CDC electromagnetic valve.

[0019] Further, the recovery CDC solenoid valve is connected with the working cylinder through a first oil hole, and the recovery cavity is connected with the reservoir through an upper cavity hole.

[0020] Further, the power mechanism comprises a gear pump arranged outside the reservoir, the gear pump being connected with the first outer valve sleeve through a first gear pump port, and the gear pump being connected with the second outer valve sleeve through a second gear pump port.

[0021] Further, the energy accumulator cavity is connected with the recovery CDC solenoid valve through a second oil hole, and a first one-way valve is arranged between the recovery CDC solenoid valve and the second oil hole.

[0022] Further, the first outer valve sleeve is internally provided with a compression soft valve, the compression soft valve being arranged between a third oil hole and the energy accumulator cavity, and the compression CDC solenoid valve entering the energy accumulator cavity through the third oil hole after passing through the compression soft valve.

[0023] Further, the second outer valve sleeve is internally provided with a recovery soft valve, the recovery soft valve being arranged between a second oil hole and the energy accumulator cavity, and the compression CDC solenoid valve entering the energy accumulator cavity through the third oil hole after passing through the recovery soft valve.

[0024] Further, the annular channel is connected with the first gear pump port through a second oil hole.

[0025] Further, the first oil hole is connected with the reservoir through a first channel.

[0026] Further, the second channel is connected with the energy accumulator cavity through an oil inlet.

[0027] Further, the third channel is connected with a fourth oil hole, and the third channel is connected with the reservoir through a fifth oil hole.

[0028] Further, the connecting block is welded with the working cylinder and the reservoir.

[0029] Further, the first piston is provided with a safety valve.

[0030] Further, the connecting block is internally provided with a second piston or a diaphragm, the second piston or the diaphragm and the bottom of the connecting block forming a filling cavity, and the filling cavity being filled with gas.

[0031] Further, a guide is mounted on the top of the reservoir, and the guide and the tightening nut are mounted on the reservoir.

[0032] Further, the first outer valve sleeve and the second outer valve sleeve are at the same horizontal plane or are not at the same horizontal plane.

[0033] A vehicle with the damper comprises the damper with the modular structure.

[0034] Compared with the prior art, the module structure of the present application can meet the oil passage flow needs of the damper by connecting the oil passages through the first, second and third flow passages, can greatly facilitate the maintenance and repair of the damper in the later stage by replacing the complex structure in the prior art with the high-integration module connecting block, and can reduce the failure rate of the damper as a whole by using the high-integration module connecting block structure to reduce the complex structure cooperation in the prior art, thereby further meeting the working needs and being suitable for wide use. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0036] Fig. 1 is a schematic diagram of the overall structure of the module according to an embodiment of the present application;

[0037] Fig. 2 is a schematic diagram of the overall structure of the module according to an embodiment of the present application;

[0038] Fig. 3 is a schematic diagram of the sectional structure of the damper according to an embodiment of the present application;

[0039] Fig. 4 is a schematic diagram of the partial sectional structure of the damper according to an embodiment of the present application;

[0040] Fig. 5 is a schematic diagram of the overall structure of the damper according to an embodiment of the present application;

[0041] Fig. 6 is a schematic diagram of the installation method of the diaphragm according to another embodiment of the present application.

[0042] Fig. 6 is a schematic diagram of the installation method of the diaphragm according to another embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0044] Please refer to FIG. 1-FIG. 6, the present application provides a technical solution: a module structure, comprising a connecting block, at least one second flow-through part is formed on the connecting block, the two sides of the second flow-through part are respectively provided with a first communication part and a third communication part, and the first communication part and the third communication part are symmetrically arranged. The first flow-through part, the second flow-through part and the third flow-through part are connected to the oil circuit to meet the need of the oil circuit flow-through of the shock absorber.

[0045] Specifically, the connecting block 24 is cylindrical in shape, and the connecting block 24 is hollow in the middle to facilitate the installation and use of the entire shock absorber. The first flow-through part, the second flow-through part and the third flow-through part are formed on the connecting block 24, and the first flow-through part, the second flow-through part and the third flow-through part are connected to the oil circuit to meet the need of the oil circuit flow-through of the shock absorber. Therefore, during use, the oil circuit is connected through the first flow-through part, the second flow-through part and the third flow-through part, thereby meeting the need of the oil circuit flow-through of the shock absorber. By replacing the complex structure in the prior art with the connecting block 24 with high integration module, the maintenance and repair of the shock absorber in the later stage can be greatly facilitated, and the structure of the connecting block 24 with high integration module is adopted, thereby reducing the complex structure cooperation in the prior art, and thus the failure rate of the entire shock absorber is reduced, the working needs are further met, and the connecting block 24 with high integration module is suitable for wide promotion and use.

[0046] In the embodiments provided by the present application, the first flow-through part includes a first channel 8 formed on the side wall of the connecting block 24, and the first channel 8 is in communication with the top of the connecting block 24. The second flow-through part includes a second channel 31 formed on the connecting block 24. The first channel 8 and the second channel 31 are not located at the same height. The second channel 31 is in communication with the inside of the connecting block 24 through an oil inlet 15. The third flow-through part includes a third channel 32 formed on the connecting block 24. The third channel 32 is independently arranged on the side wall of the connecting block 24. The third channel 32 is in communication with the inside of the connecting block 24 through a fifth oil hole 33. The bottom of the connecting block 24 is also provided with an annular channel 27. The second channel 31 is in communication with the annular channel 27, and the third channel 32 is not in communication with the annular channel 27, thereby meeting the need of the oil circuit flow-through of the shock absorber.

[0047] The application also provides a shock absorber with a module structure, which comprises the features of the module structure, and further comprises a liquid storage cylinder 2 and a working cylinder 5 installed inside the liquid storage cylinder 2.

[0048] The bottom of the liquid storage cylinder 2 is provided with a connecting block 24, and the connecting block 24 is internally provided with a power mechanism, which drives the shock absorber oil inside the liquid storage cylinder 2 to flow in the active cavity, so that the pressure in the active cavity changes, thereby realizing the active up and down movement of the vehicle wheel.

[0049] Specifically, the shock absorber with a module structure comprises a liquid storage cylinder 2 and a working cylinder 5 installed inside the liquid storage cylinder 2, wherein the liquid storage cylinder 2 is filled with shock absorber oil. The shock absorber oil is usually a high-viscosity liquid with good temperature stability and chemical stability, which needs to maintain stable damping effect under high temperature and high pressure conditions and will not reduce its performance after long-term use. At the same time, the shock absorber oil also needs to have low bubble anti-emulsification to prevent the generation of bubbles and emulsification in the shock absorber system. The working cylinder 5 is vertically and slidably connected with a piston rod 1, and the bottom of the piston rod 1 is provided with a first piston 7, and the first piston 7 and the working cylinder 5 form an active cavity. The bottom of the liquid storage cylinder 2 is provided with a connecting block 24, and the connecting block 24 is internally provided with a power mechanism, which drives the shock absorber oil inside the liquid storage cylinder 2 to flow in the active cavity, so that the pressure in the active cavity changes, thereby realizing the active up and down movement of the vehicle wheel. Therefore, in actual use, when encountering uneven road surface, scanning is performed by laser radar, and then the power mechanism is started through algorithm, so that the power mechanism on the connecting block 24 drives the shock absorber oil inside the liquid storage cylinder 2 to flow into (or flow out of) the recovery cavity 4 through the upper cavity hole 3, so that the pressure in the recovery cavity 4 increases (decreases), thereby actively realizing the lifting (lowering) operation, so that the vehicle passes through the road surface in a more stable posture, improves the comfort of the vehicle, greatly improves the practicability of the shock absorber, and meets the working needs.

[0050] In the embodiments provided by the application, the active cavity comprises a compression cavity 28 and a recovery cavity 4.

[0051] In the embodiments provided by the application, the connecting block 24 is fixedly connected with a partition plate 26, and the partition plate 26 and the connecting block 24 form an energy storage cavity 25, and the compression cavity 28 and the energy storage cavity 25 are separated by the partition plate 26, that is, the compression cavity 28, the recovery cavity 4 and the energy storage cavity 25 are independent cavities. In some embodiments, the connecting block 24 and the partition plate 26 can be welded together or directly processed as an integral molding, and the above connection modes are all within the protection scope.

[0052] In the embodiment provided by the application, the first outer valve sleeve and the second outer valve sleeve are arranged on the outer side of the liquid storage cylinder 2, the compression CDC electromagnetic valve 21 is arranged in the first outer valve sleeve, and the recovery CDC electromagnetic valve 11 is arranged in the second outer valve sleeve; the compression cavity 28 is connected with the compression CDC electromagnetic valve 21 through the fourth oil hole 23, the energy accumulator cavity 25 is connected with the compression CDC electromagnetic valve 21 through the third oil hole 18, and the second one-way valve 22 is arranged between the third oil hole 18 and the compression CDC electromagnetic valve 21; the recovery CDC electromagnetic valve 11 is connected with the working cylinder 5 through the first oil hole 9, and the recovery cavity 4 is connected with the liquid storage cylinder 2 through the upper cavity hole 3. The power mechanism comprises a gear pump arranged outside the liquid storage cylinder 2, the gear pump is connected with the first outer valve sleeve through the first gear pump port 13, and the gear pump is connected with the second outer valve sleeve through the second gear pump port 19.

[0053] In the working process, in the active control mode: lifting the wheel, the recovery CDC electromagnetic valve 11 and the compression CDC electromagnetic valve 21 are powered on and closed, the damper oil in the compression cavity 28 enters the ring cavity of the compression CDC electromagnetic valve 21 through the fourth oil hole 23, at the same time, the damper oil in the energy accumulator cavity 25 enters the ring cavity of the compression CDC electromagnetic valve 21 through the third oil hole 18 and the second one-way valve 22, then the damper oil enters the ring cavity of the recovery CDC electromagnetic valve 11 through the second gear pump port 19 by the gear pump through the first gear pump port 13, and then enters the recovery cavity 4 through the working cylinder 5 and the ring cavity of the liquid storage cylinder 2 through the upper cavity hole 3 through the first oil hole 9, the pressure of the recovery cavity 4 increases, the liquid storage cylinder 2 is driven to move upwards, and the wheel is lifted.

[0054] In the embodiment provided by the application, the energy accumulator cavity 25 is connected with the recovery CDC electromagnetic valve 11 through the second oil hole 14, and the first one-way valve 10 is arranged between the recovery CDC electromagnetic valve 11 and the second oil hole 14.

[0055] Lowering the wheel: the recovery CDC electromagnetic valve 11 and the compression CDC electromagnetic valve 21 are powered on and closed, the damper oil in the recovery cavity 4 enters the ring hydraulic cavity of the liquid storage cylinder 2 and the working cylinder 5 through the upper cavity hole 3, and then enters the ring cavity of the recovery CDC electromagnetic valve 11 through the first oil hole 9, at the same time, the damper oil in the energy accumulator cavity 25 enters the ring cavity of the recovery CDC electromagnetic valve 11 through the second oil hole 14 and the first one-way valve 10, then the damper oil enters the ring cavity of the compression CDC electromagnetic valve 21 through the first gear pump port 13 by the gear pump through the second gear pump port 19, and then enters the compression cavity 28 through the fourth oil hole 23, the pressure of the compression cavity 28 increases, the liquid storage cylinder 2 is driven to move downwards, and the wheel is lowered.

[0056] In the embodiment provided by the application, the first outer valve sleeve further has a compression soft valve 20 arranged between the third oil hole 18 and the energy accumulator cavity 25, and the compression CDC electromagnetic valve 21 enters the energy accumulator cavity 25 through the third oil hole 18 after passing through the compression soft valve 20. Meanwhile, the compression soft valve 20 also has the effect of a one-way valve.

[0057] Specifically, the compression damping in the working process is as follows: the recovery CDC electromagnetic valve 11 and the compression CDC electromagnetic valve 21 are powered on to be in the damping states required by the system respectively, the piston rod 1 and the first piston 7 move downward, the damper oil in the compression cavity 28 enters the ring cavity of the compression CDC electromagnetic valve 21 through the fourth oil hole 23, the compression CDC electromagnetic valve 21 is powered on (the size of the damping hole of the electromagnetic valve changes according to the algorithm) to be opened, the damper oil in the ring cavity of the compression CDC electromagnetic valve 21 passes through the compression soft valve 20, enters the energy accumulator cavity 25 through the third oil hole 18, and meanwhile, the damper oil in the ring cavity of the compression CDC electromagnetic valve 21 enters the ring cavity of the recovery CDC electromagnetic valve 11 through the second gear pump port 19 by the gear pump through the first gear pump port 13, enters the recovery cavity 4 through the first oil hole 9, passes through the ring cavity of the working cylinder 5 and the liquid tank 2 through the upper cavity hole 3, and realizes the compression damping force of the damper.

[0058] In the embodiment provided by the application, the second outer valve sleeve further has a recovery soft valve 12 arranged between the second oil hole 14 and the energy accumulator cavity 25, and the compression CDC electromagnetic valve 21 enters the energy accumulator cavity 25 through the third oil hole 18 after passing through the compression soft valve 20.

[0059] The recovery damping is as follows: the recovery CDC electromagnetic valve 11 and the compression CDC electromagnetic valve 21 are powered on to be in the damping states required by the system respectively, the piston rod 1 and the first piston 7 move upward, the damper oil in the recovery cavity 4 enters the ring hydraulic cavity of the liquid tank 2 and the working cylinder 5 through the hole, enters the ring cavity of the recovery CDC electromagnetic valve 11 through the first oil hole 9, the recovery CDC electromagnetic valve 11 is powered on (the size of the damping hole of the electromagnetic valve changes according to the algorithm) to be opened, the damper oil in the ring cavity enters the energy accumulator cavity 25 through the recovery soft valve 12 through the second oil hole 14, and meanwhile, the damper oil in the ring cavity of the recovery CDC electromagnetic valve 11 enters the ring cavity of the compression CDC electromagnetic valve 21 through the first gear pump port 13 by the gear pump through the second gear pump port 19, enters the compression cavity 28 through the fourth oil hole 23, and realizes the recovery damping force. The recovery soft valve 12 also has the effect of a one-way valve. In the above, the recovery soft valve 12 and the compression soft valve 20 can be added or not added according to actual needs.

[0060] In the embodiment provided by the application, the ring-shaped channel 27 is connected with the first gear pump port 13 through the second oil hole 14, which facilitates the operation of the first gear pump.

[0061] In the embodiment provided by the present application, the first channel 8 is arranged on the connecting block 24, and the first oil hole 9 is communicated with the liquid storage cylinder 2 through the first channel 8, so as to facilitate the oil circulation.

[0062] In the embodiment provided by the present application, more specifically, the second channel 31 is arranged on the connecting block 24, the second channel 31 is communicated with the annular channel 27, and the second channel 31 is communicated with the energy storage cavity 25 through the oil inlet 15.

[0063] In the embodiment provided by the present application, further, the third channel 32 is arranged on the connecting block 24, the third channel 32 is communicated with the fourth oil hole 23, and the third channel 32 is communicated with the liquid storage cylinder 2 through the fifth oil hole 33.

[0064] In the embodiment provided by the present application, the connecting block 24 is welded with the working cylinder 5 and the liquid storage cylinder 2, so as to improve the stability during the installation of the working cylinder 5 and the liquid storage cylinder 2.

[0065] In the embodiment provided by the present application, the diameter of the connecting block 24 is greater than or less than the diameter of the liquid storage cylinder 2, so as to improve the installation stability of the connecting block 24 and effectively save the cost.

[0066] In the embodiment provided by the present application, the safety valve 6 is arranged on the first piston 7, so as to play a pressure relief role when the pressure is higher than the set value.

[0067] In the embodiment provided by the present application, the second piston 16 or the diaphragm 34 is arranged in the connecting block 24, the second piston 16 or the diaphragm 34 and the bottom of the connecting block 24 form a filling cavity, and the filling cavity is filled with the gas 17, which can be high-pressure nitrogen, inert gas, rare gas or other gas, the gas 17 is filled by using a special gas welding integrated machine at the bottom small hole of the liquid storage cylinder 2, so as to ensure that there is no leakage. In another embodiment, the principle of the diaphragm 34 is equivalent to that of the second piston 16.

[0068] In the embodiment provided by the present application, the guide 29 is arranged on the top of the liquid storage cylinder 2, and the guide 29 and the locking nut 30 are arranged on the liquid storage cylinder 2. A pad is arranged between the locking nut 30 and the guide 29, the pad is in contact with the wall surface of the piston rod 1, but does not affect the sliding performance of the piston rod 1, and the locking nut 30 is pressed on the pad, so as to improve the sealing performance of the shock absorber. In some embodiments, the locking nut 30 can be cancelled, or the upper end of the liquid storage cylinder 2 is folded to press on the pad, that is, to press on the oil seal, or the locking nut 30 is directly installed and connected by the riveting process, as long as the sealing can be ensured, any installation and connection mode can be used.

[0069] In the embodiments provided by the present application, the first outer valve sleeve and the second outer valve sleeve are in the same horizontal plane. In some embodiments, the first outer valve sleeve and the second outer valve sleeve can not be in the same horizontal plane and have a height difference, so that the shock absorber can be conveniently installed in a predetermined position. The installation mode of the two valve sleeves can be adjusted according to actual needs. In addition, the two outer valve sleeves and the liquid storage cylinder 2 or the connecting block 24 are sealed by a sealing ring and then welded together to improve the sealing performance.

[0070] The present application also provides a vehicle with the shock absorber. The vehicle with the shock absorber comprises the shock absorber with the modular structure mentioned above, and the shock absorber with the modular structure mentioned above is suitable for the vehicle with the shock absorber, that is, the vehicle with the shock absorber should also have the same effects as described above, and details are not repeated.

[0071] It should be noted that the electric devices involved in the present application can be powered by a battery or an external power source.

[0072] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "provided with", "connected" and the like should be understood in a broad sense, for example, "connected" can be fixedly connected, or detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0073] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A module structure comprising a connecting block (24), characterized in that: at least one second flow passage is formed in the connecting block (24), and a first communication passage and a third communication passage are arranged on both sides of the second flow passage, and the first communication passage and the third communication passage are symmetrically arranged; the first flow passage, the second flow passage and the third flow passage are in communication with the oil passage to meet the oil passage flow requirement of the shock absorber.

2. The modular structure of claim 1, wherein: the first flow passage comprises a first channel (8) formed in the side wall of the connecting block (24), and the first channel (8) is in communication with the top of the connecting block (24).

3. The modular structure of claim 1, wherein: the second flow passage comprises a second channel (31) formed in the connecting block (24), and the second channel (31) is in communication with the inside of the connecting block (24) through an oil inlet (15).

4. The modular structure of claim 1, wherein: the third flow passage comprises a third channel (32) formed in the connecting block (24), and the third channel (32) is in communication with the inside of the connecting block (24) through a fifth oil hole (33).

5. The modular structure of claim 3, wherein: the bottom of the connecting block (24) is further provided with an annular channel (27), and the second channel (31) is in communication with the annular channel (27).

6. A shock absorber with a module structure, comprising the module structure of any one of claims 1-5, and further comprising a liquid storage cylinder (2) and a working cylinder (5) mounted in the liquid storage cylinder (2), characterized in that: a piston rod (1) is vertically and slidably connected in the working cylinder (5), and a first piston (7) is arranged at the bottom of the piston rod (1), and an active cavity is formed between the first piston (7) and the working cylinder (5); and the bottom of the liquid storage cylinder (2) is provided with the connecting block (24), and a power mechanism is arranged in the connecting block (24), and the power mechanism drives the shock absorber oil in the liquid storage cylinder (2) to flow in the active cavity, so that the pressure in the active cavity changes, thereby realizing the active up and down movement of the vehicle wheel.

7. A damper with modular construction according to claim 6, characterized in that: the active cavity comprises a compression chamber (28) and a recovery chamber (4).

8. A damper with modular structure according to claim 7, characterized in that: a partition plate (26) is fixedly connected in the connecting block (24), and an energy storage chamber (25) is formed between the partition plate (26) and the connecting block (24), and the compression chamber (28) is separated from the energy storage chamber (25) by the partition plate (26), that is, the compression chamber (28), the recovery chamber (4) and the energy storage chamber (25) are independent cavities.

9. A damper with modular construction according to claim 8, characterized in that: a first outer valve sleeve and a second outer valve sleeve are arranged on the outside of the liquid storage cylinder (2), a compression CDC electromagnetic valve (21) is arranged in the first outer valve sleeve, and a recovery CDC electromagnetic valve (11) is arranged in the second outer valve sleeve; the compression chamber (28) is in communication with the compression CDC electromagnetic valve (21) through a fourth oil hole (23).

10. A damper with modular construction according to claim 9, characterized in that: the energy storage chamber (25) is in communication with the compression CDC electromagnetic valve (21) through a third oil hole (18), and a second one-way valve (22) is arranged between the third oil hole (18) and the compression CDC electromagnetic valve (21).

11. A damper with modular construction according to claim 10, characterized in that: the recovery CDC electromagnetic valve (11) is in communication with the working cylinder (5) through a first oil hole (9), and the recovery chamber (4) is in communication with the liquid storage cylinder (2) through an upper cavity hole (3).

12. A damper with modular construction according to claim 11, characterized in that: The power mechanism comprises a gear pump arranged outside the liquid storage cylinder (2), the gear pump is communicated with the first outer valve sleeve through a first gear pump port (13), and the gear pump is communicated with the second outer valve sleeve through a second gear pump port (19).

13. The damper with modular construction of claim 9, wherein: The energy storage cavity (25) is communicated with the recovery CDC electromagnetic valve (11) through a second oil hole (14), and a first one-way valve (10) is arranged between the recovery CDC electromagnetic valve (11) and the second oil hole (14).

14. The damper with modular construction of claim 10, wherein: The first outer valve sleeve is internally provided with a compression soft valve (20), the compression soft valve (20) is arranged between the third oil hole (18) and the energy storage cavity (25), and the compression CDC electromagnetic valve (21) enters the energy storage cavity (25) through the compression soft valve (20) and the third oil hole (18).

15. A damper with modular construction according to claim 14, characterized in that: The second outer valve sleeve is internally provided with a recovery soft valve (12), the recovery soft valve (12) is arranged between the second oil hole (14) and the energy storage cavity (25), and the compression CDC electromagnetic valve (21) enters the energy storage cavity (25) through the compression soft valve (20) and the third oil hole (18).

16. A damper having a modular construction according to claim 15, characterized in that: The annular channel (27) is communicated with the first gear pump port (13) through the second oil hole (14).

17. The damper having a modular structure according to claim 11, characterized in that: The first oil hole (9) is communicated with the liquid storage cylinder (2) through a first channel (8).

18. A damper having a modular construction according to claim 17, characterized in that: The second channel (31) is communicated with the energy storage cavity (25) through an oil inlet (15).

19. The damper having a modular structure according to claim 10, characterized in that: The third channel (32) is communicated with the fourth oil hole (23), and the third channel (32) is communicated with the liquid storage cylinder (2) through a fifth oil hole (33).

20. The damper with modular construction of claim 6, wherein: The connecting block (24) is welded with the working cylinder (5) and the liquid storage cylinder (2).

21. The damper with modular construction of claim 6, wherein: The first piston (7) is provided with a safety valve (6).

22. The damper with modular construction of claim 6, wherein: The connecting block (24) is internally provided with a second piston (16) or a diaphragm (34), the second piston (16) or the diaphragm (34) and the bottom of the connecting block (24) form a filling cavity, and the filling cavity is filled with gas (17).

23. The damper with modular construction of claim 6, wherein: The liquid storage cylinder (2) is provided with a guide (29) at the top, and the guide (29) and a tightening nut (30) are arranged on the liquid storage cylinder (2).

24. The damper with modular construction of claim 6, wherein: The first outer valve sleeve and the second outer valve sleeve are in the same horizontal plane or not in the same horizontal plane.

25. A vehicle having the damper according to claim 24, characterized by: The shock absorber with a module structure comprises the shock absorber with a module structure according to any one of claims 6-24. The shock absorber with a module structure comprises the shock absorber with a module structure according to any one of claims 6-24.

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