Electronic throttle valve convenient to overhaul

Abstract

The utility model provides an electronic throttle valve convenient to overhaul, which relates to the technical field of throttle valves, and comprises a casing, a transmission pipe, a valve rod, a valve rod, a valve rod and a valve rod, and the transmission pipe is fixed on one side of the upper part of the casing; the throttle valve assembly is arranged in the machine shell and the transmission pipe; the motor is fixedly installed on the lower portion of the machine shell and controls the throttle valve assembly to be matched with the conveying pipe to conduct airflow control action. The socket comprises a seat body fixed on one side of the machine shell, and an inserting gap used for inserting a control power line is formed in the seat body electrically connected with the motor; a limiting block is slidably installed on the upper portion of the base through a spring. By means of the technical scheme, automatic plugging and forced limiting locking of the power plug are achieved through a spring limiting block and lead screw sliding block combined structure, meanwhile, the valve disc is driven by a motor multi-stage transmission mechanism to adjust the air inflow, the valve disc and the inserting rod are in sliding connection and fixed through threads, rapid dismounting, mounting and overhauling are facilitated, and the working efficiency is improved. And the use and maintenance reliability is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of throttle valve technology, and in particular to an electronic throttle valve that is easy to maintain. Background Technology

[0002] An electronic throttle is an engine intake control device that is driven by an electric actuator and whose electronic control unit precisely controls the intake air volume. It is widely used in modern automobiles.

[0003] Compared to traditional mechanical cable-operated throttle valves, electronic throttle valves receive multiple signals from sensors such as the accelerator pedal position sensor, engine speed sensor, and intake air pressure sensor. The ECU engine control unit then analyzes these signals and drives a stepper motor or DC motor to adjust the throttle valve opening, thereby achieving high-precision control of the engine's intake air volume and improving fuel economy, responsiveness, and emission control levels.

[0004] Meanwhile, the electronic throttle can also realize a variety of intelligent functions such as cruise control, idle speed control, traction control, and stability control. It is an important basic component for realizing vehicle intelligence and energy conservation and emission reduction, and has technical advantages such as compact structure, fast response and high control precision.

[0005] Traditional electronic throttle valves use plastic plug-in electrical interfaces, which, due to their simplified structure, generally lack metal latches or multi-point locking reinforcement designs. This means that the connection points rely solely on the plastic deformation of the latches to maintain a locked state during long-term use. As material fatigue and thermal expansion and contraction accumulate, the latching force gradually weakens. Especially under the high-frequency vibration and thermal shock generated during engine operation, the plug is prone to slight loosening or displacement, leading to increased contact resistance between contact points or even momentary circuit breakage. This not only affects the stable transmission of the throttle motor drive signal but may also induce system misjudgments, alarms, or abnormal power control. Such intermittent electrical faults caused by loosening are often difficult to accurately locate using conventional testing methods and are easily misjudged as damage to other components, resulting in repeated disassembly and reassembly, low repair efficiency, further increasing maintenance difficulty and potential safety hazards, and seriously affecting the reliability and ease of maintenance of the entire vehicle. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as weak locking structures that cause plugs to loosen easily, affecting signal transmission and system stability, and impacting maintenance efficiency.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an electronic throttle body that is easy to maintain, including a housing, and further including: a transmission pipe, the transmission pipe being fixed to one side of the upper part of the housing; a throttle body assembly, the throttle body assembly being disposed in the housing and the transmission pipe; a motor, the motor being fixedly installed in the lower part of the housing, and controlling the throttle body assembly to perform airflow control actions in coordination with the transmission pipe; a socket, the socket including a base fixed to one side of the housing, the base being electrically connected to the motor having an insertion gap for inserting a control power cord; a limit block being slidably installed on the upper part of the base by a spring, the limit block having two chamfers, in use, the connector of the control power cord is inserted into the insertion gap, the limit block first retracts and then inserts into a connector limiting groove that matches the shape of the lower part of the limit block.

[0008] In at least some embodiments, a lead screw is rotatably mounted on the upper part of the base, and one end of the lead screw passes through the base and is fixedly connected to a knob.

[0009] In at least some embodiments, a slider is slidably mounted on the upper part of the base, and the slider has a chamfer on the side near the limiting block. When the slider, which is screwed to the outside of the lead screw, is driven by the lead screw to move to the upper part of the limiting block, the limiting block locks the connector of the limiting control power line.

[0010] In at least some embodiments, the throttle assembly includes a first wheel rotatably mounted inside the housing, and the first wheel fixed at the motor output end and a second wheel rotatably mounted on the upper part of the housing are belt driven.

[0011] In at least some embodiments, a first bevel gear fixed to one side of the second rotating wheel is meshed with a second bevel gear rotatably installed inside the housing, and a worm fixed to one side of the second bevel gear is meshed with a worm wheel rotatably installed inside the housing.

[0012] In at least some embodiments, a valve disc is placed inside the transmission tube, and a rod inserted into one side of the transmission tube passes through the center of the valve disc and is re-inserted into the worm gear. The valve disc is slidably connected to the rod, and a screw mounted rotatably on one side of the rod is screwed to the outer wall of the transmission tube.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] By introducing a dual-limit locking design into the socket structure, not only can the plug be automatically positioned and limited during insertion, but the limit block can also be forcibly pressed by an external knob-driven slider. This effectively prevents plug loosening caused by thermal expansion, material fatigue, or vibration, ensuring stable signal transmission and avoiding false alarms or system malfunctions. At the same time, the valve disc inside the throttle body adopts a sliding plug-in + external thread fixing method, achieving a separate arrangement from the transmission mechanism. The valve disc can be quickly removed for cleaning, replacement, or repair without disassembling the housing or disconnecting the motor, greatly improving the efficiency of vehicle maintenance, reducing service hours, and lowering repair costs. It is particularly suitable for automotive electronic control system scenarios with high requirements for reliability and service convenience. Attached Figure Description

[0015] Figure 1 A three-dimensional schematic diagram of the overall structure of an electronic throttle valve that is easy to maintain is provided for this utility model;

[0016] Figure 2 This utility model provides a three-dimensional structural diagram of the internal structure of the socket in an electronic throttle body that is easy to inspect and repair.

[0017] Figure 3 This utility model proposes an electronic throttle valve that is easy to maintain. Figure 2 A three-dimensional schematic diagram of the structure shown in section A;

[0018] Figure 4 This utility model presents a three-dimensional structural diagram of the throttle assembly in an electronic throttle valve that is easy to inspect and maintain.

[0019] Legend: 1. Engine housing; 2. Throttle body assembly; 3. Socket; 4. Transmission pipe; 5. Motor;

[0020] 201. First rotating wheel; 202. Second rotating wheel; 203. First bevel gear; 204. Second bevel gear; 205. Worm gear; 206. Worm wheel; 207. Valve disc; 208. Insert rod; 209. Screw;

[0021] 301. Base; 302. Insertion gap; 303. Knob; 304. Lead screw; 305. Slider; 306. Spring; 307. Limit block. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example, according to Figures 1-4 As shown, the present invention provides an electronic throttle valve that is easy to maintain. By introducing an improved socket 3 limiting mechanism and a split component layout in the structure, it effectively solves the problems of loose electrical interfaces, poor contact and difficult maintenance of traditional throttle valves in high temperature and vibration environments.

[0025] Specifically, the system includes: housing 1, transmission pipe 4, which is fixed to one side of the upper part of housing 1; throttle assembly 2, which is disposed in housing 1 and transmission pipe 4; motor 5, which is fixedly installed in the lower part of housing 1 and controls throttle assembly 2 to perform airflow control action in conjunction with transmission pipe 4; and socket 3, which includes a base 301 fixed to one side of housing 1. The base 301, which is electrically connected to motor 5, has an insertion gap 302 for inserting control power cord. A limit block 307 is slidably installed on the upper part of base 301 by spring 306. The limit block 307 has two chamfers. In use, the connector of the control power cord is inserted into the insertion gap 302, and the limit block 307 first retracts and then inserts into the connector limiting groove that matches the shape of the lower part of the limit block 307.

[0026] When the electronic throttle is running, external airflow is guided into the throttle assembly 2 through the transmission pipe 4. The motor 5 is installed at the lower part of the housing 1 and receives electrical signals from the control system to drive the throttle valve plate in the throttle assembly 2 to rotate, thereby achieving precise adjustment of the intake air volume.

[0027] In terms of electrical connection, the socket 3 located on one side of the casing 1 is a split structure. The socket 3 has a plug-in gap 302 inside for the control power cord connector to be inserted.

[0028] The socket 3 is equipped with a sliding limit block 307 with a spring 306. When the maintenance personnel insert the power cord plug into the plug gap 302, the limit block 307 is passively retracted during the plug push-in process. After the plug is fully inserted, the limit block 307 is reset under the action of the spring 306 and automatically embedded into the connector limit groove on the plug shell to form a stable bidirectional limit connection. At the same time, the two chamfers on the limit block 307 facilitate insertion guidance, improve the convenience of operation and shock resistance stability.

[0029] This structure not only ensures self-positioning and automatic locking during the plugging process, preventing the plug from loosening due to vibration or thermal expansion and contraction, but also facilitates quick disassembly during maintenance. The plugging and unplugging operations can be performed without additional tools, significantly improving maintenance efficiency and on-site adaptability, reducing the possibility of misjudgment and repeated disassembly and assembly, and enhancing the overall reliability and service convenience of the throttle assembly 2.

[0030] In this embodiment, a lead screw 304 is rotatably mounted on the upper part of the base 301. One end of the lead screw 304 passes through the base 301 and is fixedly connected to a knob 303. A slider 305 is slidably mounted on the upper part of the base 301. A chamfer is provided on the side of the slider 305 near the limiting block 307. When the slider 305, which is screwed to the outside of the lead screw 304, moves to the upper part of the limiting block 307 driven by the lead screw 304, the limiting block 307 locks the connector of the limiting control power line.

[0031] The upper part of the base 301 is provided with a rotatable lead screw 304 structure. One end of the lead screw 304 passes through the base 301 and is fixedly connected to an external knob 303 for easy manual adjustment. A slider 305 is also slidably installed on the upper part of the base 301. The slider 305 is screwed to the lead screw 304 and can move axially when the lead screw 304 rotates.

[0032] When it is necessary to lock and fix the plug, the operator rotates the knob 303 to drive the lead screw 304 to rotate, thereby driving the slider 305 to move towards the limit block 307. The slider 305 has a guide chamfer on the side near the limit block 307, which can smoothly align with the position above the limit block 307 during the sliding process and press its top structure, so that the limit block 307 can no longer retract under the action of the spring 306, thereby firmly limiting the inserted control power cord connector in the insertion gap 302, realizing the forced limiting and anti-dislodgement function of the plug;

[0033] The limiting block 307 is locked a second time by mechanical clamping, which effectively prevents the limiting block 307 from accidentally retracting due to vibration, thermal deformation or plug pulling, improves the impact resistance and stability of the connection, and is especially suitable for the high requirements of throttle body electrical connection safety during vehicle operation. It also enhances the reliable positioning function of the plug in maintenance operations, ensuring the stability and reliability of the connector.

[0034] In this embodiment, the throttle assembly 2 adopts a multi-stage mechanical transmission structure to achieve precise control of the intake valve disc 207, and improves the detachability and maintenance convenience of the valve disc 207 through structural optimization.

[0035] Specifically, the throttle assembly 2 includes a first rotating wheel 201 rotatably mounted inside the housing 1, a first rotating wheel 201 fixed at the output end of the motor 5 and a second rotating wheel 202 rotatably mounted on the upper part of the housing 1 via belt drive, a first bevel gear 203 fixed on one side of the second rotating wheel 202 meshing with a second bevel gear 204 rotatably mounted inside the housing 1, and a worm gear 205 fixed on one side of the second bevel gear 204 meshing with a worm wheel 206 rotatably mounted inside the housing 1. A valve disc 207 is placed inside the transmission pipe 4, and a rod 208 inserted into one side of the transmission pipe 4 passes through the center of the valve disc 207 and is again inserted into the worm wheel 206. The valve disc 207 and the rod 208 are slidably connected, and a screw 209 rotatably mounted on one side of the rod 208 is screwed to the outer wall of the transmission pipe 4.

[0036] The motor 5 is fixedly installed on the lower part of the housing 1. A first rotating wheel 201 is provided on its output shaft. The first rotating wheel 201 drives the second rotating wheel 202 on the upper part of the housing 1 to rotate via a belt. A first bevel gear 203 is connected to one side of the second rotating wheel 202. The first bevel gear 203 meshes with a second bevel gear 204 provided inside the housing 1. Power is transmitted to another drive shaft through a right-angle change of direction.

[0037] A worm 205 is fixed on one side of the second bevel gear 204 and meshes with the worm wheel 206 to form a worm wheel 206 worm 205 reduction mechanism, which is used to improve the transmission torque and adjustment accuracy.

[0038] The worm gear 206 is connected to the insert rod 208 inside the transmission pipe 4 by a plug-in connection. The insert rod 208 passes through the throttle valve center disc 207 and slides with the center hole of the valve disc 207 to ensure that the valve disc 207 is accurately opened and closed to control the airflow when rotating, while maintaining good sealing and guidance.

[0039] To enhance the maintainability of the valve disc 207 assembly, the insert rod 208 is designed as a pluggable structure. One end of the insert rod is externally connected to the side wall of the transmission pipe 4, and the other end is slidably connected to the valve disc 207. A screw 209 structure is provided on one side of the insert rod 208 and screwed to the outer wall of the transmission pipe 4. During disassembly, only the external screw 209 needs to be unscrewed to pull out the insert rod 208 and valve disc 207 assembly as a whole. There is no need to disassemble the entire throttle assembly 2, which effectively simplifies the maintenance process, shortens the maintenance time, and reduces the dependence on precision assembly.

[0040] This structural optimization not only achieves efficient control of throttle opening but also significantly improves the convenience of valve disc 207 maintenance and replacement, making it suitable for regular maintenance and rapid repair needs under long-term operating conditions.

[0041] The working principle of this utility model is as follows: By setting an improved socket 3 limiting structure and a lockable slider 305 mechanism on one side of the housing, the power plug is stably plugged in, and is shockproof and anti-loosening, avoiding signal abnormalities caused by plug loosening under high temperature and high vibration conditions; wherein the socket 3 is provided with a limiting block 307, which is slidably installed above the base 301 by a spring 306. When the control power line is inserted into the plugging gap 302, the limiting block 307 is passively retracted and reset to be embedded in the plug limiting groove, realizing self-positioning connection; at the same time, a knob 30 is provided on the upper part of the base 301. The lead screw 304 mechanism controlled by the 3 drives the slider 305 to slide and press the top of the limit block 307, so that the limit block 307 is locked and no longer retracts, realizing the secondary anti-loosening and locking function; in terms of airflow control, the motor 5 drives the valve disc 207 to rotate precisely to adjust the air intake through a multi-stage gear transmission mechanism. The valve disc 207 is slidably connected by the insert rod 208. The insert rod 208 has a threaded structure on the outside that cooperates with the outer wall of the transmission pipe 4 for fixation. During maintenance, only the screw 209 needs to be unscrewed to quickly pull out the valve disc 207 assembly, improving maintenance efficiency and overall modular maintainability.

[0042] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An electronic throttle valve which is convenient for inspection, comprising a casing (1), characterized in that, Also include: Transmission pipe (4), the transmission pipe (4) is fixed on the upper part of the shell (1) one side; Throttle assembly (2), the throttle assembly (2) is arranged in the shell (1) and transmission pipe (4); Motor (5), the motor (5) is fixedly installed on the lower part of the shell (1), and the throttle assembly (2) is controlled to cooperate with the transmission pipe (4) to make airflow control action; Socket (3), the socket (3) includes a seat body (301) fixed on one side of the shell (1), and the seat body (301) is electrically connected with the motor (5) and is internally provided with a plug gap (302) for plugging control power line; The upper part of the seat body (301) is slidably installed with a limiting block (307) through a spring (306), the limiting block (307) is provided with two chamfers, in use, the joint of the control power line is inserted into the plug gap (302), the limiting block (307) is retracted first and then plugged into the joint limiting groove matched with the shape of the lower part of the limiting block (307).

2. The electronic throttle valve for easy maintenance according to claim 1, characterized by: The upper part of the seat body (301) is also rotatably installed with a lead screw (304), one end of the lead screw (304) penetrates through the seat body (301) and is fixedly connected with a knob (303).

3. An electronic throttle valve facilitating maintenance according to claim 2, characterized in that: The upper part of the seat body (301) is slidably installed with a sliding block (305), one side of the sliding block (305) close to the limiting block (307) is provided with a chamfer, the sliding block (305) screwed on the outside of the lead screw (304) is driven to move to the upper part of the limiting block (307) by the lead screw (304), and the limiting block (307) locks and controls the joint of the power line.

4. The electronic throttle valve for easy maintenance according to claim 1, characterized by: The throttle assembly (2) includes a first rotating wheel (201) rotatably installed in the shell (1), the first rotating wheel (201) fixed on the output end of the motor (5) is in belt transmission with a second rotating wheel (202) rotatably installed on the upper part of the shell (1).

5. An electronic throttle valve facilitating maintenance according to claim 4, characterized in that: A first bevel gear (203) fixed on one side of the second rotating wheel (202) is meshedly connected with a second bevel gear (204) rotatably installed in the shell (1), and a worm (205) fixed on one side of the second bevel gear (204) is meshedly connected with a worm wheel (206) rotatably installed in the shell (1).

6. An electronic throttle valve facilitating maintenance according to claim 5, characterized in that: The transmission pipe (4) is placed with a valve disc (207), a plug rod (208) plugged on one side of the transmission pipe (4) penetrates through the center of the valve disc (207) and is plugged with the worm wheel (206) again, the valve disc (207) is slidably connected with the plug rod (208), and a screw rod (209) rotatably installed on one side of the plug rod (208) is screwed with the outer wall of the transmission pipe (4).

Images