High-integration electronic valve body

Abstract

The utility model relates to a high-integration electronic valve body, which comprises a three-in-one sensor, a valve body and a control unit, the three-in-one sensor detects pressure and temperature information in the valve body through a pressure detection hole and a temperature detection hole, and simultaneously transmits the pressure and temperature information to an engine ECU (Electronic Control Unit); the engine ECU calculates the opening degree of the valve body according to the pressure and temperature information and transmits the opening degree information of the valve body to the driving motor, the driving motor controls the valve shaft to rotate to open the valve plate, and the three-in-one sensor detects the opening angle of the valve plate and feeds back the opening angle to the control unit. Compared with the prior art, the high-integration electronic valve body has the advantages that the arrangement of the air inlet pressure sensor and the temperature sensor is added, the integration level is higher, and the space arrangement and the cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, in particular to a highly integrated electronic valve body. Background Art

[0002] With the emergence of electronic valve bodies, flexible connection methods have eliminated traditional mechanical connections, and the valve body is quickly and accurately positioned through the electronic control unit. Its advantage is that it can determine the optimal opening of the valve body according to the driver's needs and various driving conditions of the vehicle, ensuring the vehicle's optimal power and fuel economy. It also has control functions such as traction control and cruise control to improve safety and ride comfort.

[0003] However, with the continued development of electronic valve bodies, requirements for cost and space layout are gradually increasing. Reducing the space required for electronic valve bodies and increasing integration have become the current development direction. Currently, electronic valve bodies are generally available in two configurations: one in which the dual-position sensor is integrated with the drive motor; the other in which the dual-position sensor, a two-in-one sensor, and the drive motor are assembled on the valve body.

[0004] The two aforementioned electronic valve bodies not only lack space advantages, but also lack compatible solutions for the intake air temperature and pressure sensors, resulting in high replacement costs. Furthermore, the existing electronic valve body drive is expensive to maintain, requiring complete replacement if a problem occurs. Utility Model Content

[0005] The purpose of the present invention is to provide a highly integrated electronic valve body in order to solve the problems existing in the prior art. The highly integrated electronic valve body provided by the present invention has an additional arrangement of intake pressure and temperature sensors, a higher degree of integration, and saves space and cost.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A highly integrated electronic valve body, including a three-in-one sensor, a valve body and a control unit.

[0008] The three-in-one sensor is installed at one end of the valve body, the three-in-one sensor is externally connected to the engine ECU, and a pressure detection hole and a temperature detection hole are provided on the end surface of the valve body on which the three-in-one sensor is installed. The three-in-one sensor is used to detect the pressure and temperature information in the valve body and the opening of the valve body;

[0009] The valve body is provided with a rotating unit, which includes a valve shaft and a valve plate. The valve plate is mounted on the valve body through the valve shaft.

[0010] The control unit includes a drive motor, which is installed at one end of the valve body and is externally connected to the engine ECU; a transmission assembly is provided on the end surface of the valve body where the drive motor is installed, and the drive motor is connected to the valve shaft through the transmission assembly;

[0011] The three-in-one sensor detects the pressure and temperature information inside the valve body through the pressure detection hole and the temperature detection hole, and transmits the pressure and temperature information to the engine ECU at the same time; the engine ECU calculates the opening of the valve body based on the pressure and temperature information, and transmits the opening information of the valve body to the drive motor. The drive motor controls the valve shaft to rotate to open the valve plate, and the three-in-one sensor detects the valve plate opening angle and feeds back to the control unit.

[0012] In one embodiment of the present invention, the end surface of the valve body on which the three-in-one sensor is installed is further provided with a bolt fixing hole, a motor bolt fixing hole and a drive motor cavity.

[0013] The three-in-one sensor is installed on the valve body through the sensor bolt passing through the bolt fixing hole.

[0014] The drive motor is fixed in the drive motor cavity through the motor bolt fixing hole.

[0015] In one embodiment of the present invention, a motor flange plate is provided on the outside of the drive motor cavity, and the motor flange plate is used to fix the drive motor in the drive motor cavity.

[0016] As a preferred technical solution, the motor flange plate is fixed to the valve body by motor bolts.

[0017] In one embodiment of the present invention, the rotating unit further includes a needle bearing and a torsion spring, and the two needle bearings are respectively provided at the left and right ends of the valve shaft.

[0018] A torsion spring is also provided at one end of the valve shaft. The torsion spring is mainly used to rotate the valve shaft and drive the valve disc back to its initial angle in limp mode after the driving motor fails and the torque overcomes the force of the rotating part.

[0019] In one embodiment of the present invention, the needle roller bearing is rotatably connected to the valve shaft via a C-shaped clamping ring, and the needle roller bearing controls the position limiting and rotation of the valve shaft by cooperating with the C-shaped clamping ring.

[0020] In one embodiment of the present invention, the transmission assembly also includes a motor gear, an intermediate gear and a fan gear, one end of the motor gear is mounted on the output shaft of the drive motor, the other end of the motor gear is meshed with the intermediate gear, the end of the intermediate gear away from the motor gear is meshed with the fan gear, and the fan gear is mounted on the valve shaft.

[0021] As a preferred technical solution, a sector gear insert is installed between the sector gear and the valve shaft, and the sector gear insert is used to limit the torsion spring.

[0022] In one embodiment of the present invention, an intermediate gear pin is provided on the valve body.

[0023] The intermediate gear is assembled on the intermediate gear pin, and the left and right ends of the intermediate gear are respectively engaged with the motor gear and the sector gear;

[0024] A gear pin hole is also provided on the end surface of the valve body on which the transmission assembly is installed, and the intermediate gear pin is assembled in the gear pin hole.

[0025] In one embodiment of the present invention, the valve disc is connected to the valve shaft via a valve disc screw.

[0026] In one embodiment of the present utility model, the valve body is provided with a carbon canister pipe, a hose, a first air intake pipe and a second air intake pipe. The valve body is connected to the carbon canister through the carbon canister pipe. The carbon canister pipe is mainly used for desorption of fuel vapor; the first air intake pipe and the second air intake pipe are connected by a hose for a roundabout design of intake pressure detection.

[0027] In one embodiment of the present invention, a cover plate is further provided on the valve body, and the cover plate is fixed to the valve body by a clip.

[0028] The cover plate is provided with a sealing ring, which is used to ensure waterproof and dustproof after meeting the air tightness test after assembly.

[0029] The working principle of this utility model is as follows:

[0030] The highly integrated electronic valve body provided by this utility model is assembled and used on a motorcycle. When the motorcycle engine is running, the engine ECU uses pressure and temperature information provided by a three-in-one sensor to correct the fuel injection quantity and ignition timing angle. It then analyzes the driver's intention based on the throttle grip rotation angle, combined with the current operating mode, throttle movement, and rate of change, to calculate the basic engine torque demand and the corresponding basic expected value of the valve body's rotation angle. This determines the optimal valve body opening and sends a corresponding voltage signal to the drive circuit module, which drives the motor to adjust the valve body to the optimal opening position. The three-in-one sensor then feeds the valve body opening signal back to the valve control unit, forming a closed loop for precise control.

[0031] The drive unit of this highly integrated electronic valve body is driven by a motor gear meshing with an intermediate gear and a sector gear. The motor drives the motor gear, which then transmits the rotation to the valve shaft via the two gears, causing the valve disc to rotate. When the motor is powered off, a torsion spring drives the sector gear, valve shaft, and valve disc back to the mechanical bottom dead center.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. The highly integrated electronic valve body provided by the present invention designs the three-in-one sensor on the corresponding sector gear cover and places the magnet in the center of the sector gear.

[0034] 2. The utility model eliminates the need to arrange a separate position sensor in the transmission part, thereby reducing the volume and thickness of the transmission part and the design difficulty. The transmission part and electrical components are also easier to maintain and the cost is reduced.

[0035] 3. The highly integrated electronic valve body provided by the utility model adds intake pressure and temperature sensor arrangements, resulting in higher integration and saving space layout and cost.

[0036] 4. The highly integrated electronic valve body provided by the utility model also adopts a circuitous airway design for intake pressure detection, which makes the data accuracy of the pressure chip higher and the service life longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a three-dimensional schematic diagram of the highly integrated electronic valve body of the utility model;

[0038] Figure 2 This is a schematic diagram of the half-section structure of the highly integrated electronic valve body of the utility model;

[0039] Figure 3 This is a schematic diagram of the assembly surface of the three-in-one sensor in the utility model;

[0040] Figure 4 It is a schematic diagram of the valve body of the present invention;

[0041] Figure 5 It is a two-dimensional structural diagram of the highly integrated electronic valve body in the utility model;

[0042] Figure 6 It is a structural diagram of the transmission assembly in the utility model;

[0043] Figure 7 It is a schematic diagram of the overall structure of the highly integrated electronic valve body in the utility model.

[0044] Explanation of the accompanying figures: 1. Three-in-one sensor, 2. Valve body, 201. Pressure detection hole, 202. Temperature detection hole, 203. Bolt fixing hole, 204. Motor bolt fixing hole, 205. Drive motor cavity, 206. Gear pin hole, 3. Drive motor, 4. Valve shaft, 401. Needle roller bearing, 402. C-type clamping ring, 5. Torsion spring, 6. Valve plate, 7. Valve plate screw, 8. Carbon canister pipe, 801. First intake pipe, 802. Second intake pipe, 9. Sealing ring, 10. Cover plate, 11. Clip, 12. Hose, 13. Sensor bolt, 14. Motor gear, 15. Intermediate gear, 16. Intermediate gear pin, 17. Sector gear, 18. Sector gear insert, 19. Motor flange plate, 20. Motor bolt. DETAILED DESCRIPTION

[0045] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0046] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0047] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0048] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0049] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0050] Example 1

[0051] See also Figures 1 to 7 This embodiment provides a highly integrated electronic valve body, including a three-in-one sensor 1, a valve body 2 and a control unit.

[0052] The three-in-one sensor 1 is installed at one end of the valve body 2. The three-in-one sensor 1 is externally connected to the engine ECU. The end surface of the valve body 2 on which the three-in-one sensor 1 is installed is provided with a pressure detection hole 201 and a temperature detection hole 202. The three-in-one sensor 1 is used to detect the pressure and temperature information in the valve body 2 and the opening of the valve body 2;

[0053] The valve body 2 is provided with a rotating unit, which includes a valve shaft 4 and a valve plate 6. The valve plate 6 is mounted on the valve body 2 through the valve shaft 4.

[0054] The control unit includes a drive motor 3, which is mounted on one end of the valve body 2 and is externally connected to the engine ECU; a transmission assembly is provided on the end surface of the valve body 2 where the drive motor 3 is mounted, and the drive motor 3 is connected to the valve shaft 4 via the transmission assembly;

[0055] The three-in-one sensor 1 detects the pressure and temperature information inside the valve body 2 through the pressure detection hole 201 and the temperature detection hole 202, and transmits the pressure and temperature information to the engine ECU at the same time; the engine ECU calculates the opening of the valve body 2 based on the pressure and temperature information, and transmits the opening information of the valve body 2 to the drive motor 3. The drive motor 3 controls the valve shaft 4 to rotate and open the valve plate 6. The three-in-one sensor 1 detects the opening angle of the valve plate 6 and feeds back to the control unit.

[0056] In this embodiment, the end surface of the valve body 2 on which the three-in-one sensor 1 is mounted is further provided with a bolt fixing hole 203, a motor bolt fixing hole 204 and a drive motor cavity 205.

[0057] The three-in-one sensor 1 is installed on the valve body 2 by passing the sensor bolt 13 through the bolt fixing hole 203.

[0058] The drive motor 3 is fixed in the drive motor cavity 205 through the motor bolt fixing hole 204 .

[0059] In this embodiment, a motor flange plate 19 is provided outside the drive motor cavity 205 , and the motor flange plate 19 is used to fix the drive motor 3 in the drive motor cavity 205 .

[0060] In this embodiment, the motor flange plate 19 is fixed to the valve body 2 by motor bolts 20 .

[0061] In this embodiment, the rotating unit further includes a needle bearing 401 and a torsion spring 5. The two needle bearings 401 are respectively provided at the left and right ends of the valve shaft 4.

[0062] A torsion spring 5 is also provided at one end of the valve shaft 4. The torsion spring 5 is mainly used to rotate the valve shaft 4 and drive the valve plate 6 back to the initial angle in the limp mode after the torsion force overcomes the force of the rotating part after the driving motor 3 fails.

[0063] In this embodiment, the needle roller bearing 401 is rotatably connected to the valve shaft 4 via a C-shaped retaining ring 402 . The needle roller bearing 401 cooperates with the C-shaped retaining ring 402 to control the position limiting and rotation of the valve shaft 4 .

[0064] In this embodiment, the transmission assembly also includes a motor gear 14, an intermediate gear 15 and a fan gear 17. One end of the motor gear 14 is mounted on the output shaft of the drive motor 3, and the other end of the motor gear 14 is engaged with the intermediate gear 15. The end of the intermediate gear 15 away from the motor gear 14 is engaged with the fan gear 17, and the fan gear 17 is mounted on the valve shaft 4.

[0065] In this embodiment, a sector gear insert 18 is installed between the sector gear 17 and the valve shaft 4 , and the sector gear insert 18 is used to limit the torsion spring 5 .

[0066] In this embodiment, the valve body 2 is provided with an intermediate gear pin 16.

[0067] The intermediate gear 15 is assembled on the intermediate gear pin 16, and the left and right ends of the intermediate gear 15 are respectively engaged with the motor gear 14 and the sector gear 17;

[0068] A gear pin hole 206 is further provided on the end surface of the valve body 2 where the transmission assembly is installed, and the intermediate gear pin 16 is assembled in the gear pin hole 206 .

[0069] In this embodiment, the valve disc 6 is connected to the valve shaft 4 via a valve disc screw 7 .

[0070] In this embodiment, the valve body 2 is provided with a carbon canister pipe 8, a hose 12, a first air intake pipe 801 and a second air intake pipe 802. The valve body 2 is connected to the carbon canister through the carbon canister pipe 8. The carbon canister pipe 8 is mainly used for desorption of fuel vapor; the first air intake pipe 801 and the second air intake pipe 802 are connected by the hose 12 for a roundabout design of intake pressure detection.

[0071] In this embodiment, a cover plate 10 is further provided on the valve body 2, and the cover plate 10 is fixed on the valve body 2 by a clip 11.

[0072] The cover plate 10 is provided with a sealing ring 9, which is used to prevent water and dust after being assembled and meeting the air tightness test.

[0073] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the disclosure of this utility model without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A highly integrated electronic valve body, characterized in that: It comprises a three-in-one sensor (1), a valve body (2) and a control unit. The three-in-one sensor (1) is mounted on one end of the valve body (2), the three-in-one sensor (1) is externally connected to the engine ECU, and a pressure detection hole (201) and a temperature detection hole (202) are provided on the end surface of the valve body (2) on which the three-in-one sensor (1) is mounted. The three-in-one sensor (1) is used to detect pressure and temperature information in the valve body (2) and the opening of the valve body (2); A rotating unit is provided in the valve body (2), and the rotating unit comprises a valve shaft (4) and a valve plate (6). The valve plate (6) is mounted on the valve body (2) via the valve shaft (4). The control unit includes a drive motor (3), the drive motor (3) is installed at one end of the valve body (2), and the drive motor (3) is externally connected to the engine ECU; a transmission component is provided on the end surface of the valve body (2) on which the drive motor (3) is installed, and the drive motor (3) is connected to the valve shaft (4) through the transmission component.

2. A highly integrated electronic valve body according to claim 1, characterized in that: The end surface of the valve body (2) on which the three-in-one sensor (1) is mounted is also provided with a bolt fixing hole (203), a motor bolt fixing hole (204) and a drive motor cavity (205). The three-in-one sensor (1) is mounted on the valve body (2) by passing the sensor bolt (13) through the bolt fixing hole (203). The drive motor (3) is fixed in the drive motor cavity (205) through the motor bolt fixing hole (204).

3. A highly integrated electronic valve body according to claim 2, characterized in that: A motor flange plate (19) is provided outside the drive motor cavity (205), and the motor flange plate (19) is used to fix the drive motor (3) in the drive motor cavity (205).

4. The highly integrated electronic valve body according to claim 1, characterized in that: The rotating unit further comprises a needle bearing (401) and a torsion spring (5). The two needle bearings (401) are respectively arranged at the left and right ends of the valve shaft (4). A torsion spring (5) is also provided at one end of the valve shaft (4).

5. The highly integrated electronic valve body according to claim 4, characterized in that: The needle bearing (401) is rotatably connected to the valve shaft (4) via a C-shaped clamping ring (402).

6. The highly integrated electronic valve body according to claim 1, characterized in that: The transmission assembly further comprises a motor gear (14), an intermediate gear (15) and a sector gear (17), wherein one end of the motor gear (14) is mounted on the output shaft of the drive motor (3), the other end of the motor gear (14) is meshed with the intermediate gear (15), and the end of the intermediate gear (15) away from the motor gear (14) is meshed with the sector gear (17), and the sector gear (17) is mounted on the valve shaft (4).

7. The highly integrated electronic valve body according to claim 6, characterized in that: The valve body (2) is provided with an intermediate gear pin (16). The intermediate gear (15) is assembled on the intermediate gear pin (16), and the left and right ends of the intermediate gear (15) are respectively engaged with the motor gear (14) and the sector gear (17); A gear pin hole (206) is also provided on the end surface of the valve body (2) on which the transmission assembly is installed, and the intermediate gear pin (16) is assembled in the gear pin hole (206).

8. The highly integrated electronic valve body according to claim 1, characterized in that: The valve plate (6) is connected to the valve shaft (4) via a valve plate screw (7).

9. The highly integrated electronic valve body according to claim 1, characterized in that: The valve body (2) is provided with a carbon canister pipe (8), a rubber hose (12), a first air intake pipe (801) and a second air intake pipe (802); the valve body (2) is connected to an external carbon canister via the carbon canister pipe (8); the carbon canister pipe (8) is mainly used for desorption of fuel vapor; the first air intake pipe (801) and the second air intake pipe (802) are connected via the rubber hose (12).

10. The highly integrated electronic valve body according to claim 1, characterized in that: The valve body (2) is also provided with a cover plate (10), which is fixed to the valve body (2) via a clamp (11), and the cover plate (10) is provided with a sealing ring (9).

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