Modular electronic throttle valve

Abstract

The utility model discloses a modularization electronic throttle valve, include: valve piece assembly module and gear execution mechanism module, valve piece assembly module and gear execution mechanism module are detachably connected through bolt, valve piece assembly module includes valve piece, and gear execution mechanism module is transmission connection with valve piece. Through the application of the utility model, propose a kind of modularization electronic throttle valve, its through the modularization design of splitting valve piece assembly module and gear execution mechanism module, the adaptation of different diameter valve piece assembly and same gear execution mechanism is realized, product versatility is improved, in addition, it cancels the two-way spring return mechanism in traditional structure, hobbling position structure, under the premise of satisfying range extending engine air intake regulation use demand, effectively solve the over design problem when traditional electronic throttle valve body adapts range extending engine.

Description

Technical Field

[0001] This utility model relates to the field of electronic throttle technology, and in particular to a modular electronic throttle. Background Technology

[0002] In existing technologies, electronic throttle bodies used in range-extended engines generally employ a two-way spring return mechanism with a limp-position feature, combined with a DC motor and a two-way position sensor to drive and sense the position of the valve plate. However, considering the operating conditions of range-extended engines, traditional electronic throttle bodies have significant shortcomings: First, the core design of the limp-position spring return mechanism and the two-way position sensor is to meet the safety redundancy requirements of traditional internal combustion engines under extreme operating conditions. However, range-extended engines operate primarily on electric motor drive, with the engine only serving as a supplementary power source for the range extender, thus eliminating the need for such high-redundancy safety designs. Second, the redundant structural design directly increases the variety and number of components in the electronic throttle body, increasing the complexity of the assembly process. Furthermore, components such as the two-way position sensor and the spring return mechanism significantly increase the material and manufacturing costs of the product. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a modular electronic throttle valve, including: a valve plate assembly module and a gear actuator module, wherein the valve plate assembly module and the gear actuator module are detachably connected by bolts, the valve plate assembly module includes a valve plate, and the gear actuator module is drivenly connected to the valve plate.

[0004] In another preferred embodiment, the gear actuator module includes: a motor and a gear transmission assembly, the gear transmission assembly being connected to the output end of the motor, and the valve plate being drivenly connected to the gear transmission assembly.

[0005] In another preferred embodiment, the valve plate assembly module further includes a valve stem, the valve plate being disposed on the valve stem, and one end of the valve stem being connected to the gear transmission assembly for transmission.

[0006] In another preferred embodiment, the gear transmission assembly includes a first gear, a second gear, and a third gear that mesh sequentially, the first gear being sleeved around the output shaft of the motor, and the third gear being sleeved around the valve stem.

[0007] In another preferred embodiment, the gear transmission assembly includes a worm, a worm wheel, an intermediate tooth, and an output tooth. The output shaft of the motor is connected to the worm, the worm meshes with the worm wheel, the worm wheel meshes with the output tooth through the intermediate tooth, and the output tooth is connected to the valve plate in a driving connection.

[0008] In another preferred embodiment, one end of the valve stem is provided with an external spline, and the middle of the output tooth is provided with an internal spline, wherein the internal spline matches the external spline.

[0009] In another preferred embodiment, the device further includes a position detection unit connected to the motor.

[0010] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: Through the application of this invention, a modular electronic throttle body is proposed. Its modular design, which separates the valve plate assembly module from the gear actuator module, enables the adaptation of valve plate assemblies of different diameters to the same gear actuator, improving product versatility. Furthermore, it eliminates the bidirectional spring return mechanism and limp-position structure in traditional structures, replaces the bidirectional position sensor with a low-cost single-channel position signal chip or pulse counter, and uses a small-output torque motor in conjunction with a gear transmission assembly with a large gear ratio to amplify the torque. This simplifies the redundant structure and reduces material and assembly costs. While meeting the intake air regulation requirements of range-extended engines, it effectively solves the over-design problem of adapting traditional electronic throttle bodies to range-extended engines. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of a modular electronic throttle valve according to the present invention;

[0012] Figure 2 This is an exploded schematic diagram of a modular electronic throttle valve according to the present invention.

[0013] Figure 3 This is a schematic diagram of the gear actuator module of a modular electronic throttle valve according to the present invention;

[0014] Figure 4 This is a schematic diagram of the gear actuator module in another embodiment of the modular electronic throttle valve of this utility model.

[0015] In the attached image:

[0016] 1. Valve plate assembly module; 2. Gear actuator module; 3. Bolt; 4. Motor; 5. First gear; 6. Second gear; 7. Third gear; 8. Worm; 9. Worm wheel; 10. Intermediate gear; 11. Output gear. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0020] like Figure 1-4 As shown, a preferred embodiment of a modular electronic throttle valve is illustrated, comprising: a valve plate assembly module 1 and a gear actuator module 2. The valve plate assembly module 1 and the gear actuator module 2 are detachably connected by bolts 3. The valve plate assembly module 1 includes a valve plate, and the gear actuator module 2 is drivenly connected to the valve plate.

[0021] Furthermore, as a preferred embodiment, the gear actuator module 2 includes: a motor 4 and a gear transmission assembly, the gear transmission assembly being connected to the output end of the motor 4, and the valve plate being connected to the gear transmission assembly in a transmission connection.

[0022] Furthermore, in a preferred embodiment, the valve plate assembly module 1 further includes a valve stem, on which the valve plate is disposed, and one end of the valve stem is connected to the gear transmission assembly for transmission. The valve stem is further used to transmit the torque of the gear transmission assembly, driving the valve plate to rotate to regulate the engine's intake airflow.

[0023] Furthermore, in a preferred embodiment, the gear transmission assembly includes a first gear 5, a second gear 6, and a third gear 7 that mesh sequentially. The first gear 5 is sleeved around the output shaft of the motor 4, and the third gear 7 is sleeved around the valve stem. Further, during operation, the output shaft of the motor 4 drives the first gear 5 to rotate, which in turn drives the second gear 6 to rotate. The second gear 6 further drives the third gear 7 to rotate, and the third gear 7 drives the valve stem and valve plate to rotate synchronously.

[0024] In another embodiment of this utility model, the gear transmission assembly includes: a worm 8, a worm wheel 9, an intermediate tooth 10, and an output tooth 11. The output shaft of the motor 4 is connected to the worm 8, the worm 8 meshes with the worm wheel 9, the worm wheel 9 meshes with the output tooth 11 through the intermediate tooth 10, and the output tooth 11 is connected to the valve plate in a transmission connection. Further, during operation, the motor 4 can drive the worm 8 to rotate, the worm 8 drives the worm wheel 9 to rotate, the worm wheel 9 transmits torque to the output tooth 11 through the intermediate tooth 10, and the output tooth 11 drives the valve stem and valve plate to rotate.

[0025] In another embodiment of this utility model, an external spline is provided at one end of the valve stem, and an internal spline is provided in the middle of the output tooth 11, with the internal spline matching the external spline. Furthermore, by providing the spline structure, the contact area between the valve stem and the output tooth can be increased, improving the stability and reliability of torque transmission and avoiding problems such as transmission slippage and uneven tooth surface wear during long-term use.

[0026] Furthermore, as a preferred embodiment, it also includes: a position detection unit, which is connected to the motor 4, and is used to provide real-time feedback on the opening position of the valve plate to achieve closed-loop control.

[0027] Furthermore, as a preferred embodiment, the position detection unit is preferably configured as a single-channel position signal chip, which is integrated on the PCB board of the gear actuator module 2. The single-channel position signal chip can calculate the real-time opening degree of the valve plate by sensing the position change of the rotor of the motor 4, and feed the signal back to the engine control system.

[0028] In another embodiment of this utility model, the position detection unit is preferably set as an encoder, which is installed inside the motor 4. The encoder can be used to identify the opening position of the valve plate.

[0029] In another embodiment of this utility model, the position detection unit is preferably set as a pulse counter, which is connected to the motor 4. The pulse counter can calculate the valve opening degree by counting the number of pulses of the motor 4.

[0030] The working principle of this utility model is as follows: When the range-extender engine is working, the control system can send an opening adjustment command to the motor 4 of the electronic throttle according to the engine's power requirements. After receiving the command, the motor 4 starts to run, and the small torque output is amplified by the gear transmission assembly. Then, the gear transmission assembly transmits the amplified torque to the valve stem, which drives the valve plate to rotate to the target opening, thereby achieving precise adjustment of the engine's intake air volume. At the same time, the position detection unit collects the valve plate opening signal in real time and feeds it back to the control system. The control system adjusts the motor operating parameters according to the feedback signal to form a closed-loop control, ensuring that the valve plate opening is precisely matched with the engine's requirements.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular electronic throttle valve, characterized in that, include: The valve plate assembly module and the gear actuator module are detachably connected by bolts. The valve plate assembly module includes a valve plate, and the gear actuator module is drivenly connected to the valve plate.

2. The modular electronic throttle valve according to claim 1, characterized in that, The gear actuator module includes a motor and a gear transmission assembly, wherein the gear transmission assembly is connected to the output end of the motor, and the valve plate is connected to the gear transmission assembly in a transmission connection.

3. The modular electronic throttle valve according to claim 2, characterized in that, The valve plate assembly module further includes a valve stem, on which the valve plate is disposed, and one end of the valve stem is connected to the gear transmission assembly for transmission.

4. The modular electronic throttle valve according to claim 3, characterized in that, The gear transmission assembly includes a first gear, a second gear, and a third gear that mesh in sequence. The first gear is sleeved around the output shaft of the motor, and the third gear is sleeved around the valve stem.

5. The modular electronic throttle valve according to claim 3, characterized in that, The gear transmission assembly includes a worm, a worm wheel, an intermediate tooth, and an output tooth. The output shaft of the motor is connected to the worm, the worm meshes with the worm wheel, the worm wheel meshes with the output tooth through the intermediate tooth, and the output tooth is connected to the valve plate in a driving connection.

6. The modular electronic throttle valve according to claim 5, characterized in that, One end of the valve stem is provided with an external spline, and the middle of the output tooth is provided with an internal spline, the internal spline matching the external spline.

7. The modular electronic throttle valve according to claim 2, characterized in that, Also includes: A position detection unit is connected to the motor.

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