Integrated valve body and air supply unit

Abstract

The utility model discloses an integrated valve body and an air supply unit, which comprise a valve body main body, the valve body main body is provided with a top surface, a bottom surface and a plurality of side surfaces, a piston arm mounting cavity and piston mounting holes extending to the side surfaces are arranged in the valve body main body, and a motor mounting hole communicated with the piston arm mounting cavity is arranged in the middle of the top surface. A plurality of component mounting holes are formed in the top face and the side faces, a plurality of valve mounting holes are formed in the bottom face and the top face, a pneumatic connecting channel is arranged in the valve body main body, and the pneumatic connecting channel is in pneumatic connection among at least one component mounting hole, one valve mounting hole and one piston mounting hole. An assembly channel extending to the middle of the piston arm installation cavity from the side face without the piston installation hole is transversely formed in the valve body main body. The utility model can solve the problems that the existing valve block needs to be provided with a crankshaft, pistons and locking parts among the pistons, so that a single valve body structure cannot be adopted, the assembly is tedious, the cost is high, and the size is larger.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile air supply units, in particular to an integrated valve body and an air supply unit. Background Art

[0002] With the increasing demand for comfort in vehicles, air suspension has experienced rapid development, and electronic product designs are becoming increasingly modular and miniaturized. Closed air supply units (ASUs) have gained widespread recognition due to their high inflation efficiency and minimal external gas exchange. Closed air supply units primarily operate by transporting internal gas. To shorten the gas path and reduce switching time, an integrated valve block is required to integrate the compressor, solenoid valve, and sensor. Existing valve blocks lack sufficient integration, particularly due to the need to mount the crankshaft, piston, and the locking components between them, which often precludes the use of a single valve body structure. This results in cumbersome assembly, high costs, and bulky design. Utility Model Content

[0003] The utility model provides an integrated valve body and air supply unit, which can solve the problems that the existing valve block needs to install a crankshaft, a piston and a locking component between the pistons and often cannot adopt a single valve body structure, and the assembly is cumbersome, costly and large in size.

[0004] To achieve the above-mentioned purpose, in the first aspect, the present invention provides the following technical solutions: an integrated valve body, comprising a valve body main body, the valve body main body having a top surface, a bottom surface and a plurality of side surfaces, a piston arm mounting cavity being provided inside the valve body main body, piston mounting holes extending to the side surfaces being provided at both ends of the piston arm mounting cavity, a motor mounting hole being provided in the center of the top surface and communicating with the piston arm mounting cavity, a plurality of component mounting holes being provided on the top surface and the side surfaces, a plurality of valve mounting holes being provided on the bottom surface and the top surface, a pneumatic connection channel being provided inside the valve body main body, and the pneumatic connection channel being provided in at least one component A pneumatic connection is created between the mounting holes, the valve mounting holes and the piston mounting holes. An assembly channel is laterally arranged inside the valve body, extending from the side without the piston mounting holes to the middle of the piston arm mounting cavity. By integrating the motor mounting holes, the component mounting holes and the valve mounting holes into one valve body and connecting them through the pneumatic connection channel inside the valve body, the integration of the air supply unit is improved. The overall volume is small, and the through piston mounting hole facilitates the installation of the piston arm. Other parts are all mounted on the outside of the valve body. By setting the assembly channel, the locking installation of the piston arm inside the valve body can be quickly achieved, the assembly is simple, and the overall volume is small.

[0005] Preferably, a side cover is provided on the side surface to block the assembly channel, thereby preventing external debris from entering the piston arm installation cavity and facilitating the disassembly and replacement of the piston arm.

[0006] Preferably, the cross-section of the assembly channel is in the shape of an elongated strip, which is conducive to delivering the locking component horizontally into the piston arm installation cavity for installation, and provides sufficient operating space.

[0007] Preferably, a motor connector connection hole connecting the top surface and the bottom surface is provided on one side of the motor mounting hole, so as to facilitate electrical connection between the motor and the ECU component on the bottom surface without the need for additional wiring, and is easy to install.

[0008] Preferably, the component mounting holes include intake and exhaust seat connecting holes, exhaust holes and multiple air nozzle mounting holes, which facilitate the installation of intake and exhaust seats and air nozzles of various lines. These component mounting holes are relatively concentrated, which is conducive to quick installation.

[0009] Preferably, the valve mounting holes include a dryer throttle valve connecting hole arranged on the top surface, a pressure relief valve hole arranged on the bottom surface, and a plurality of switching valve mounting holes. The pressure relief valve hole and the switching valve mounting hole are installed on the bottom surface, which is conducive to connecting the corresponding solenoid valve with the ECU component. The dryer throttle valve connecting hole is installed on the top surface, which is conducive to connecting with an external dryer without the need to disassemble and assemble other components.

[0010] Preferably, the assembly channel is arranged on the side of the valve body for connecting to the shock-absorbing module, and a plurality of shock-absorbing module connection holes are provided on the side. The shock-absorbing module is used to be connected to the car, and can protect the assembly channel and the side cover. No other components need to be installed on the side. The arrangement of the assembly channel can effectively utilize the internal space of the valve body, and this position can also have sufficient volume to arrange the assembly channel.

[0011] Preferably, a boss is provided at the edge of the top surface, and the boss is arranged at a position corresponding to the pneumatic connection channel extending to the side edge. The boss can prevent the edge of the valve body from cracking or arching due to being too close to the edge during the processing of the pneumatic connection channel.

[0012] In the second aspect, the utility model also relates to an air supply unit, comprising an integrated valve body as described in the first aspect, and also comprising a motor and a pair of piston arms installed in a piston arm mounting cavity, wherein the main shaft of the motor is connected to the bearing through a crankshaft, and the two sides of the bearing are docked with the piston arms, and the piston arms are connected by a locking component sent from an assembly channel to clamp the bearing, and the locking component can be smoothly inserted into the piston arm mounting cavity through the assembly channel, and the locking component can be directly put on the two piston arms from the side, which is convenient for installation.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The structure is simple. The motor mounting hole, component mounting hole and valve mounting hole are integrated into a valve body and connected through the pneumatic connection channel inside the valve body, which improves the integration of the air supply unit. The overall volume is small. The through piston mounting hole can facilitate the installation of the piston arm. The other parts are all installed on the outside of the valve body. By setting the assembly channel, the locking installation of the piston arm inside the valve body can be quickly achieved. The assembly process is simple and the overall volume is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a first-perspective three-dimensional structural diagram of the integrated valve body of the present utility model;

[0016] Figure 2 This is a second perspective structural diagram of the integrated valve body of the present utility model;

[0017] Figure 3 This is a main sectional structural diagram of the integrated valve body of the utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the air supply unit of the present invention;

[0019] Figure 5 This is a cross-sectional structural diagram of the air supply unit of the present invention;

[0020] Figure 6 This is a system principle diagram of the air supply unit of the present utility model.

[0021] Reference numerals:

[0022] 1. Valve body; 11. Bottom surface; 12. Valve mounting hole; 13. Motor connector connection hole; 14. Piston arm mounting cavity; 15. Assembly channel; 16. Side cover; 17. Boss; 18. Side; 19. Air nozzle mounting hole; 2. Top surface; 20. Motor; 21. Switching valve mounting hole; 22. Dryer throttle valve connection hole; 23. Shock absorber module connection hole; 3. Motor mounting hole; 30. Piston arm; 4. Component mounting hole; 40. Locking component; 5. Inlet and exhaust seat connection hole; 6. Piston mounting hole; 7. Pneumatic connection channel; 8. Exhaust hole; 9. Motor fixing hole; 10. Pressure relief valve hole; SV1, SV2, SV3, SV4, AV1, AV2, AV3, AV4: switching valve; RR, RL, FR, FL: air suspension; EAD, dryer assembly; EV, exhaust valve; TCV, throttle check valve; PLV, power limiting valve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] like Figure 1-6 As shown, the present invention solves the problem that the existing valve block needs to install a crankshaft, a piston and a locking component between the pistons, but often cannot adopt a single valve body structure, which is cumbersome to assemble, costly and large in size. The present invention provides the following technical solutions: an integrated valve body, comprising a valve body main body 1, the valve body main body 1 having a top surface 2, a bottom surface 11 and a plurality of side surfaces 18, a piston arm mounting cavity 14 is provided inside the valve body main body 1, piston mounting holes 6 extending to the side surfaces 18 are provided at both ends of the piston arm mounting cavity 14, a motor mounting hole 3 connected to the piston arm mounting cavity 14 is provided in the center of the top surface 2, a plurality of component mounting holes 4 are provided on the top surface 2 and the side surfaces 18, a plurality of valve mounting holes 12 are provided on the bottom surface 11 and the top surface 2, the valve body main body 1 is provided with a plurality of mounting holes 12. A pneumatic connection channel 7 is provided, and the pneumatic connection channel 7 creates a pneumatic connection between at least one component mounting hole 4, the valve mounting hole 12 and the piston mounting hole 6. An assembly channel 15 is laterally provided inside the valve body main body 1, extending from the side 18 without the piston mounting hole 6 to the middle of the piston arm mounting cavity 14. By integrating the motor mounting hole 3, the component mounting hole 4 and the valve mounting hole 12 into one valve body main body 1 and connecting them through the pneumatic connection channel 7 inside the valve body main body 1, the integration of the air supply unit is improved, the overall volume is small, the through piston mounting hole 6 can facilitate the installation of the piston arm, and the other parts are all installed on the outside of the valve body main body 1. By setting the assembly channel 15, the locking installation of the piston arm inside the valve body main body 1 can be quickly achieved, the assembly is simple, and the overall volume is small.

[0025] Specifically, the valve body 1 can be in a cubic shape. As one of the core components of the air supply unit, the main components of the air supply unit need to be installed on the valve body 1. For example, the motor 20 is installed on the top surface 2, and it is installed and positioned through the motor mounting hole 3. A plurality of motor fixing holes 9 are provided around the motor mounting hole 3 on the top surface 2. The outer shell of the motor 20 can be mounted to the motor fixing hole 9 by screws. A shock absorber assembly needs to be installed on one side of the valve body 1. The shock absorber assembly is connected to the car frame and is the component that connects the air supply unit to the car. The bottom surface 11 of the valve body 1 is used to install the ECU assembly. The ECU assembly is used to control the opening and closing of each solenoid valve and the operation of the motor. It is the control system of the air supply unit.

[0026] As an innovative structure, the assembly channel 15 rationally utilizes the space inside the valve body 1, so that the locking component 40 between the piston arms 30 can be installed from the side, avoiding the problem of opening a channel at the bottom of the bottom surface 11 of the valve body 1, which requires the entire ECU assembly to be disassembled during maintenance, making the solenoid valve and the electrical components inside the ECU assembly prone to damage.

[0027] The valve body 1 can be die-casted from 6061-T6 aluminum alloy with a tensile strength of ≥310 MPa, meeting the requirements of pneumatic high pressure (maximum 1.2 MPa) and being 40% lighter than a cast iron valve body.

[0028] In this embodiment, a side cover 16 is provided on the side surface 18 to block the assembly channel 15, thereby preventing external debris from entering the piston arm mounting cavity 14 and facilitating the removal and replacement of the piston arm. The side cover 16 has a metal cover, and a seal can be provided between the side cover 16 and the valve body 1. The side cover 16 can be removed from the outside, and after removal, a tool can be used to insert into the assembly channel 15 for operation. The cross-section of the assembly channel 15 is preferably configured as an elongated strip, because the locking component 40 is mostly flat, which facilitates the horizontal insertion of the locking component 40 into the piston arm mounting cavity 14 for installation, and provides sufficient operating space. Specifically, the elongated cross-section of the assembly channel 15 has a width of 20 mm and a height of 10 mm, and a length of 80 mm. The distance from the side surface 18 connected to the damping module to the middle of the piston arm mounting cavity 14 is 75 mm from the cavity end. The axis of the channel intersects the axis of the piston arm mounting cavity 14 at right angles, ensuring that the locking component 40 can be inserted horizontally.

[0029] In this embodiment, a motor connector connection hole 13 connecting the top surface 2 and the bottom surface 11 is provided on one side of the motor mounting hole 3, which facilitates the electrical connection of the motor 20 with the ECU component on the bottom surface 11 without the need for additional wiring, and is easy to install. The connector between the motor 20 and the ECU component passes vertically through the motor connector connection hole 13.

[0030] In this embodiment, the component mounting holes 4 include the intake and exhaust seat connecting holes 5, the exhaust holes 8 and a plurality of gas nozzle mounting holes 19, which facilitate the installation of the intake and exhaust seats and the gas nozzles of various lines. These component mounting holes 4 are relatively concentrated, which is conducive to quick installation. Figure 1 As shown, the intake and exhaust seat connecting holes 5, the exhaust holes 8 and the multiple air nozzle mounting holes 19 are mainly installed on the top surface 2. Individual air nozzle mounting holes 19 can be set on the side 18. Installing them on the top surface 2 is conducive to connecting the air pipes to each air suspension.

[0031] In this embodiment, if Figure 2 As shown, the valve mounting hole 12 includes a dryer throttle valve connecting hole 22 arranged on the top surface 2, a pressure relief valve hole 10 and a plurality of switching valve mounting holes 21 arranged on the bottom surface 11. The pressure relief valve hole 10 and the switching valve mounting hole 21 are installed on the bottom surface 11 to facilitate the connection of the corresponding solenoid valve and the ECU component, and the dryer throttle valve connecting hole 22 is installed on the top surface 2 to facilitate connection with an external dryer without the need to disassemble and assemble other components.

[0032] In this embodiment, if Figure 3-5 As shown, the assembly channel 15 is arranged on the side 18 of the valve body main body 1 for connecting to the shock absorbing module. A plurality of shock absorbing module connection holes 23 are provided on the side 18. The shock absorbing module is used to be connected to the car and can protect the assembly channel 15 and the side cover 16. No other components need to be installed on the side 18. The arrangement of the assembly channel 15 can effectively utilize the internal space of the valve body main body 1, and this position can also have sufficient volume to arrange the assembly channel 15.

[0033] In this embodiment, if Figure 1 As shown, a boss 17 is provided at the edge of the top surface 2, and the boss 17 is arranged at a position corresponding to the pneumatic connecting channel 7 extending to the edge of the side surface 18. The boss 17 can prevent the edge of the valve body from cracking or arching due to being too close to the edge during the processing of the pneumatic connecting channel 7. The number of bosses 17 can be adjusted according to the actual position of the pneumatic connecting channel 7.

[0034] In this embodiment, an air supply unit is also involved, including the above-mentioned integrated valve body, and also including a motor 20 and a pair of piston arms 30 installed in the piston arm mounting cavity 14. The main shaft of the motor 20 is connected to the bearing through a crankshaft, and the two sides of the bearing are docked with the piston arms 30. The piston arms 30 are connected by a locking component 40 sent from the assembly channel 15 to clamp the bearing. The locking component 40 can be smoothly inserted into the piston arm mounting cavity 14 through the assembly channel 15, and the locking component 40 can be directly put on the two piston arms 30 from the side, which is convenient for installation.

[0035] Specifically, if Figure 6 As shown in the figure, it is a system schematic diagram of the air supply unit, in which the switching valves SV1, SV2, SV3, SV4, AV1, AV2, AV3, and AV4 are all installed in the switching valve mounting hole 21, corresponding to the air suspensions RR, RL, FR, and FL of the automobile. The throttle check valve TCV is installed in the dryer throttle valve connecting hole 22 for connecting with the dryer assembly EAD. The power limiting valve PLV is installed in the pressure relief valve hole 10, and the exhaust valve EV is installed in the exhaust hole 8. Therefore, except for the air suspensions RR, RL, FR, and FL, the components in the system schematic diagram can be directly installed on the valve body 1, and the integration is relatively high.

[0036] During assembly, first insert the pair of piston arms 30 into the piston arm mounting cavity 14 through the piston mounting holes 6 on both sides, aligning the ends of the two arms (with a spacing of 5mm). The main shaft of the motor 20 passes through the motor mounting hole 3 and connects to the bearing (φ15mm) at the end of the piston arm 30 through the crankshaft. Secure the motor housing to the motor fixing hole 9 with M6 screws, with a torque of 8-10N·m.

[0037] Insert the locking component 40 from the assembly channel 15 and fit it into the groove (8mm wide) in the middle of the two piston arms 30. Use a special tool (such as a 100mm long hook wrench) to lock the buckle to ensure that the bearing is clamped (axial clearance ≤ 0.05mm);

[0038] Install the side cover 16, which can be fixed to the side 18 with four M4 screws. Install a nitrile rubber O-ring on the inside of the cover, compressed by 20% to ensure sealing;

[0039] Various components are installed in each mounting hole, and then the ECU assembly is installed on the bottom surface 11 and fixed by screws. The motor connector passes through the motor connector connection hole 13 to be electrically connected to the ECU.

[0040] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0043] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. An integrated valve body, comprising a valve body main body (1), characterized in that: The valve body (1) has a top surface (2), a bottom surface (11) and multiple side surfaces (18), a piston arm mounting cavity (14) is provided inside the valve body (1), piston mounting holes (6) extending to the side surfaces (18) are provided at both ends of the piston arm mounting cavity (14), a motor mounting hole (3) connected to the piston arm mounting cavity (14) is centrally provided on the top surface (2), multiple component mounting holes (4) are provided on the top surface (2) and the side surfaces (18), multiple valve mounting holes (12) are provided on the bottom surface (11) and the top surface (2), a pneumatic connection channel (7) is provided inside the valve body (1), the pneumatic connection channel (7) generates a pneumatic connection between at least one component mounting hole (4), the valve mounting hole (12) and the piston mounting hole (6), and an assembly channel (15) is laterally provided inside the valve body (1) and extends from the side surface (18) without the piston mounting hole (6) to the middle of the piston arm mounting cavity (14).

2. The integrated valve body according to claim 1, characterized in that: A side cover (16) for blocking the assembly channel (15) is provided on the side surface (18).

3. The integrated valve body according to claim 2, characterized in that: The cross section of the assembly channel (15) is in the shape of an elongated strip.

4. The integrated valve body according to claim 1, characterized in that: A motor connector connection hole (13) communicating with the top surface (2) and the bottom surface (11) is provided on one side of the motor mounting hole (3).

5. The integrated valve body according to claim 1, characterized in that: The component mounting holes (4) include an air inlet and outlet seat connecting hole (5), an air exhaust hole (8), and a plurality of air nozzle mounting holes (19).

6. The integrated valve body according to claim 5, characterized in that: The valve mounting hole (12) comprises a dryer throttle valve connecting hole (22) arranged on the top surface (2), a pressure relief valve hole (10) arranged on the bottom surface (11), and a plurality of switching valve mounting holes (21).

7. The integrated valve body according to claim 1, characterized in that: The assembly channel (15) is provided on a side surface (18) of the valve body (1) for connecting to the shock absorbing module, and a plurality of shock absorbing module connecting holes (23) are provided on the side surface (18).

8. The integrated valve body according to claim 7, characterized in that: A boss (17) is provided at the edge of the top surface (2), and the boss (17) is provided at a position corresponding to the pneumatic connection channel (7) extending to the edge of the side surface (18).

9. An air supply unit, characterized in that: The integrated valve body comprises the integrated valve body as described in any one of claims 1 to 8, and further comprises a motor (20) and a pair of piston arms (30) installed in a piston arm installation cavity (14), wherein the main shaft of the motor (20) is connected to the bearing via a crankshaft, both sides of the bearing are docked with the piston arms (30), and the piston arms (30) are connected to each other via a locking component (40) fed from an assembly channel (15) to clamp the bearing.

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