Pin connecting structure, air inlet throttle valve and engine
By introducing a guide opening and bevel design into the pin connection structure of the intake throttle valve, the tilt of the motor pin is automatically corrected, solving the problem of poor electrical connection and improving engine performance and safety.
Patent Information
- Application Number
- CN202520086719.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-14
AI Technical Summary
In the existing technology, the cover pin structure of the intake throttle valve cannot automatically correct the tilt state of the motor pin, resulting in poor electrical connection and affecting the performance and safety of the engine.
A pin connection structure is designed, including a first pin and a second pin. The second pin consists of a protective sleeve and a female pin end. The protective sleeve has a guide opening and a bevel structure, which can automatically correct the tilt of the first pin and ensure accurate insertion.
It improves the accuracy and reliability of pin connections, avoids poor contact problems, and enhances the stability of electrical connections and the operational reliability of the engine.
Smart Images
Figure CN223815858U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric actuator technical field, specifically, plug pin connection structure, intake throttle valve and engine with it. BACKGROUND
[0002] At present, in the control system of automobile and industrial machinery, intake throttle valve as the key component of adjusting engine intake volume, its performance advantage and shortcoming directly influence the running efficiency and stability of engine. The control of intake throttle valve usually depends on electric actuator, and it realizes the accurate regulation of intake volume through the opening and closing of motor driven throttle valve. The second pin is arranged on the cover plate of electric actuator, which is used for electrically connecting with the first pin on the motor, so as to transmit control signal and power. This plug pin connection mode requires that the first pin and the second pin must be aligned to ensure the accurate transmission of electrical signal. The plug pin structure design of cover plate needs to fully consider the docking convenience and connection stability of the first pin.
[0003] However, in actual operation, especially in high temperature, high vibration or complex working conditions, the inclination or slight deviation of the first pin of the motor is difficult to avoid. When the first pin and the second pin are plugged, if the first pin is inclined, the cover plate plug pin structure of the prior art often cannot effectively automatically correct this state, resulting in virtual connection or poor contact between the first pin and the second pin. This connection problem not only reduces the response speed and control accuracy of the electric actuator, but also may cause electrical failure in long-term operation, and even leads to abnormal work of the intake throttle valve, affecting the performance and safety of the engine. In addition, the virtual connection problem is difficult to be accurately identified in the production detection stage, so that the defective actuator may be misjudged as qualified product, further affecting the market reputation and user satisfaction of the product. Therefore, in the prior art, there is a technical problem that the plug pin on the cover plate of the intake throttle valve cannot automatically correct the inclination state of the motor pin, which becomes a big challenge to improve the control accuracy and reliability of the throttle valve, and innovative technical solutions are needed to solve this problem. UTILITY MODEL CONTENTS
[0004] The main purpose of the utility model is to provide a plug pin connection structure, intake throttle valve and engine with it, to solve the technical problem that the plug pin on the cover plate of the intake throttle valve in the prior art cannot correct the inclination state of the motor pin, thereby causing poor contact between the motor and the cover plate.
[0005] In order to achieve the above object, according to one aspect of the utility model, provide a pin connection structure, including first pin, for setting on the motor of intake throttle valve, first pin at least partially protruding on the motor, second pin, for setting on the cover plate of intake throttle valve, second pin includes protective sleeve and pin female end, protective sleeve and pin female end are set on the cover plate, the protective sleeve is at least partially surrounded on the outside of pin female end, the end of pin female end is equipped with the first socket extending towards the cover plate, the protective sleeve is equipped with the second socket, the second socket is located on the outside of first socket, the protective sleeve has the guide opening in communication with the second socket, in the direction away from first socket, the guide opening gradually increases, so that first pin enters first socket under the guidance of guide opening.
[0006] Further, the guide opening has a large end and a small end, the large end is arranged at the end of the protective sleeve, the small end is connected with the second socket, and the guide opening includes a slope structure between the large end and the small end.
[0007] Further, one end of the second socket close to the cover plate is a second insertion end, one end of the first socket close to the cover plate is a first insertion end, and the second insertion end is located on the side of the first insertion end away from the cover plate.
[0008] Further, the protective sleeve has a first protective plate and a second protective plate, the first protective plate and the second protective plate are arranged in parallel and are spaced apart, the pin female end is clamped between the first protective plate and the second protective plate, and the second socket is arranged on the first protective plate and the second protective plate.
[0009] Further, the protective sleeve further includes a third protective plate, and opposite sides of the third protective plate are connected with the same side wall of the first protective plate and the second protective plate.
[0010] Further, the motor is provided with two first pins, and the cover plate is provided with two second pins correspondingly, and the third protective plate of the two second pins is arranged on the side of each second pin close to the other second pin.
[0011] Further, the width of the first socket along the extension direction of the pin female end is d1, the width of the second socket along the extension direction of the pin female end is d2, and the following relationship is satisfied: 2mm≤d2-d1≤3mm.
[0012] Further, the protective sleeve is made of one-piece injection molding process, and the protective sleeve is made of flame-retardant and non-conductive organic polymer material.
[0013] The second aspect of the present application provides an air intake throttle valve, comprising a motor and a cover plate, the air intake throttle valve comprising the pin connection structure described above; a shell is provided with a mounting cavity, the valve plate and the motor are mounted in the mounting cavity, the motor is used for driving the valve plate, the shell is provided with a mounting port, the mounting port is communicated with the mounting cavity, the cover plate is arranged in cooperation with the shell and covers the mounting port, the cover plate is provided with a charging port, and the charging port is electrically connected with the second pin.
[0014] The third aspect of the present application provides an engine, comprising an air intake system and an intercooler, the engine further comprising the air intake throttle valve described above, the air intake throttle valve further comprising: a first connecting pipe and a second connecting pipe, the first connecting pipe is connected with an air inlet pipe of the engine air intake system, and the second connecting pipe is connected with an air outlet pipe of the engine intercooler.
[0015] The technical scheme of the present application is applied, the first pin is directly arranged on the motor of the air intake throttle valve, and at least part of the first pin protrudes from the motor, the purpose being to electrically connect with the second pin. The protruding length and shape of the first pin must match the subsequent plug-in structure to ensure the stability and reliability of the electrical connection. The second pin is composed of a protective sleeve and a pin female end, the protective sleeve not only plays a protective role to prevent external environmental factors such as water, dust, oil and the like from damaging the pin female end, but also bears the key functions of guiding and correcting the inclined state of the first pin. The pin female end is arranged on the cover plate and has a first plug opening for realizing electrical connection with the first pin. The second plug opening of the protective sleeve is located outside the first plug opening, this design provides a larger insertion range, and the setting of the guide opening enables the first pin to be guided into the first plug opening under the action of the guide opening even if the first pin is inclined, thereby realizing precise plugging. The guide opening gradually narrows from the large opening end to the small opening end to form a slope structure. This design can automatically correct the inclined state of the first pin, and ensures that the first pin can be guided to the correct position and electrically connected with the pin female end even if there is an angle deviation when initially inserted. This design significantly improves the precision and reliability of the pin connection, and avoids the problem of poor contact caused by the inclination of the pin. The pin connection structure establishes an accurate and reliable electrical connection channel between the first pin and the second pin, and combines the automatic correction function of the guide opening, thereby effectively solving the problem of poor contact caused by the inclination of the motor pin during the assembly of the air intake throttle valve. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the descriptions thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:
[0017] Figure 1 Fig. 1 shows a schematic diagram of a cross section along the vertical direction of an embodiment of the pin connection structure according to the present application;
[0018] Figure 2 A third embodiment of the pin connection structure is shown in the perspective view of the second pin;
[0019] Figure 3 A third embodiment of the pin connection structure is shown in the perspective view of the first pin and the second pin in the plugged state;
[0020] Figure 4 A third embodiment of the air intake throttle valve is shown in the perspective view;
[0021] Figure 5 A third embodiment of the air intake throttle valve is shown in the vertical cross-sectional view;
[0022] Figure 6 A third embodiment of the air intake throttle valve is shown in the perspective split view.
[0023] Among them, the above-mentioned drawings include the following reference signs:
[0024] 1, the first pin; 2, the second pin; 21, the protective sleeve; 211, the second socket; 212, the guide opening; 213, the first protective plate; 214, the second protective plate; 215, the third protective plate; 22, the pin female end; 221, the first socket; 3, the motor; 4, the cover plate; 5, the shell; 6, the charging port; 7, the first connecting pipe; 8, the second connecting pipe. DETAILED DESCRIPTION
[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.
[0027] In the present application, unless otherwise specified, the orientation words such as "up, down, top, bottom" are generally directed to the direction shown in the drawings, or directed to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the present application.
[0028] For example, Figures 1 to 6As shown, according to the first aspect of the present application, the embodiment of the utility model provides a pin connection structure, comprising first pin 1 and second pin 2, first pin 1 is used to set up on the motor 3 of intake throttle valve, and first pin 1 at least partially protrudes from the motor 3;Second pin 2 is used to set up on the cover plate 4 of intake throttle valve, and second pin 2 includes protective sleeve 21 and pin female end 22, protective sleeve 21 and pin female end 22 are set up on the cover plate 4, and protective sleeve 21 at least partially surrounds the outside of pin female end 22, and the end of pin female end 22 is provided with the first socket 221 extending towards the cover plate 4, and protective sleeve 21 is provided with the second socket 211, and the second socket 211 is located on the outside of the first socket 221, and protective sleeve 21 has the guide opening 212 in communication with the second socket 211, and in the direction away from the first socket 221, the guide opening 212 gradually increases, so that first pin 1 enters the first socket 221 under the guidance of the guide opening 212.
[0029] The pin connection structure provided by the embodiment of the utility model establishes accurate and reliable electrical connection channel between the first pin 1 and the second pin 2, and in combination with the automatic correction function of the guide opening 212, effectively solves the poor contact problem caused by the inclination of the motor pin during the assembly of the intake throttle valve.
[0030] In the above embodiment, the first pin 1 is directly arranged on the motor 3 of the intake throttle valve, and at least partially protrudes from the motor 3, and the purpose is to be electrically connected with the second pin 2. The protruding length and shape of the first pin 1 must match the subsequent plug-in structure to ensure the stability and reliability of the electrical connection. The second pin 2 is composed of the protective sleeve 21 and the pin female end 22, and the protective sleeve 21 not only plays a protective role to prevent external environmental factors such as water, dust, oil and the like from damaging the pin female end 22, but also bears the key functions of guiding and correcting the inclination of the first pin 1. The pin female end 22 is arranged on the cover plate 4 and has the first socket 221 for realizing electrical connection with the first pin 1. The second socket 211 of the protective sleeve 21 is located on the outside of the first socket 221, which provides a larger insertion range, and the setting of the guide opening 212 enables the first pin 1 to be guided into the first socket 221 under the action of the guide opening 212 even if the first pin 1 is inclined, so as to realize accurate plug-in. The guide opening 212 gradually narrows from the large end to the small end to form a slope structure. This design can automatically correct the inclination of the first pin 1, and ensure that the first pin 1 can be guided to the correct position and electrically connected with the pin female end 22 even if there is an angle deviation during initial insertion. This design significantly improves the precision and reliability of the pin connection, and avoids the poor contact problem caused by the inclination of the pin.
[0031] As Figures 1 to 3As shown, specifically, the guide opening 212 has a large end and a small end, the large end is arranged at the end of the protective sleeve 21, and the small end is connected with the second socket 211. The guide opening 212 includes a slope structure between the large end and the small end. The guide opening 212 with the slope structure can more accurately guide the first pin 1 to enter the first socket 221, and the connection can be successfully completed even with slight alignment deviation. The slope structure of the guide opening 212 gradually narrows from the large end to the small end, which is a direct implementer of automatically correcting the inclined state of the first pin 1. The arrangement of the large end provides sufficient insertion range, so that the first pin 1 can easily contact the protective sleeve 21 even if there is an inclination when initially inserted. The design of the slope plays a guiding and correcting role, and through the gradually decreasing width, the first pin 1 is forced to adjust the angle until it is aligned with the second socket 211, achieving precise insertion. The protective sleeve 21 not only serves as a carrier of the guide opening 212, but also protects the pin female end of the second pin 2, preventing external environmental factors from damaging the electrical connection point. At the same time, the structural design of the protective sleeve 21 ensures the relative positional relationship between the second socket 211 and the first socket 221, providing accurate guidance and positioning for the electrical connection between the first pin 1 and the pin female end 22, ensuring the stability and reliability of the electrical connection. The second socket 211 is located on the outside of the first socket 221, which expands the insertion range of the first pin 1. At the same time, the second socket 211 is connected with the guide opening 212, and through the gradient design of the guide opening 212, the first pin 1 is guided by the guide opening 212 to first contact the protective sleeve 21, and then adjust the angle under the action of the slope structure, and finally realize electrical connection through the first socket 221 of the pin female end 22 and the second socket 211. The relative position and size relationship between the second socket 211 and the first socket 221 is the basis for ensuring that the first pin 1 can be smoothly inserted and effectively electrically connected. The guide opening 212 with the slope structure generates a guide force when the first pin 1 is inserted, and the direction of the force is inward along the slope, which promotes the first pin 1 to move and adjust the angle in the direction of the first socket 221. The arrangement of the slope enables the first pin 1 to automatically adjust to the correct position through friction and contact with the slope even if there is deviation in the insertion angle, achieving effective insertion with the pin female end 22 and avoiding poor contact or pin damage.
[0032] Specifically, the second socket 211 is the second insertion end near one end of the cover plate 4, and the first socket 221 is the first insertion end near one end of the cover plate 4. The second insertion end of the second socket 211 is located on the side of the first insertion end of the first socket 221 away from the cover plate 4. The second insertion end of the second socket 211 is defined as the second insertion end, and the first insertion end of the first socket 221 is defined as the first insertion end. This description clearly defines the relative positions of the two sockets on the cover plate 4, i.e. the second insertion end is located on the side of the first insertion end away from the cover plate 4. The second insertion end of the second socket 211 is located on the side of the first insertion end of the first socket 221 away from the cover plate 4, which provides preliminary positioning and guiding for the insertion of the first pin 1, and prevents the first pin 1 from contacting the second pin 2 if it is bent in the guiding structure of the second pin 2.
[0033] Specifically, the protective sleeve 21 has a first protective plate 213 and a second protective plate 214, which are parallel and spaced apart. The pin female end 22 is clamped between the first protective plate 213 and the second protective plate 214, and the first protective plate 213 and the second protective plate 214 are both provided with the second socket 211. The first protective plate 213 and the second protective plate 214 are arranged in parallel and spaced apart, forming a relatively closed space for enclosing and protecting the pin female end 22. Parallel arrangement ensures the position of the pin female end 22 is fixed in the transverse direction, preventing it from shifting during insertion and ensuring accurate connection with the first pin. The pin female end 22 is clamped between the first protective plate 213 and the second protective plate 214, which not only fixes the position of the pin female end 22, but also keeps it stable relative to the cover plate 4. This positioning of the pin female end 22, combined with the arrangement of the first socket 221, ensures accurate electrical connection with the first pin 1, thereby ensuring the normal operation of the intake throttle valve. The first protective plate 213 and the second protective plate 214 are both provided with the second socket 211, which provides two independent sockets, allowing electrical connection through one of the second sockets 211 even if the first pin 1 is tilted or offset during insertion. This double insurance mechanism greatly improves the reliability and fault tolerance of the pin connection. The spacing and positioning between the first protective plate 213 and the second protective plate 214 not only provide physical protection for the pin female end 22, but also form a guiding system through the second sockets 211 they themselves provide, guiding the first pin 1 into the correct insertion position and avoiding damage caused by direct contact. At the same time, the design of the protective plate also plays a role in waterproofing and dustproofing, further improving the stability and durability of the pin connection structure.
[0034] Specifically, the protective sleeve 21 further comprises a third protective plate 215, the opposite sides of which are connected with the same side wall of the first protective plate 213 and the second protective plate 214 respectively. The main function of the introduction of the third protective plate 215 is to enhance the structural stability of the protective sleeve 21 and the protection capability of the female end 22 of the pin. The opposite sides of the third protective plate 215 are connected with the same side wall of the first protective plate 213 and the second protective plate 214 respectively, which makes the protective sleeve 21 form a more closed structure, improves the protection of the female end 22 of the pin, avoids the direct action of external force or environmental factors on the electrical connection point, and thus improves the reliability and durability of the pin connection structure. The connection between the third protective plate 215 and the first protective plate 213 and the second protective plate 214 not only strengthens the stability of the structure of the entire protective sleeve 21, but also forms a more careful protection for the female end 22 of the electrical connection. By clamping the female end 22 of the pin with the first protective plate 213 and the second protective plate 214, the third protective plate 215 provides additional support and protection in the direction perpendicular to the first and second protective plates 214. This synergistic effect makes the protective sleeve 21 not only provide guidance and protection in the horizontal direction (i.e. the direction of the first and second protective plates 214), but also enhances the stability of the structure in the vertical direction, further improving the stability of the electrical connection. The existence of the third protective plate 215 indirectly improves the precision and reliability of the pin connection by enhancing the overall structure of the protective sleeve 21. During assembly, even if external impact or inclination of the motor pin is encountered, the third protective plate 215 can work synergistically with other protective plates to keep the position of the female end 22 of the pin stable, ensuring that the first pin can smoothly enter the first socket 221 under the guidance of the guide opening 212, achieving precise electrical connection. In addition, the third protective plate 215 can also play an isolation role, avoiding direct contact between the motor pin and other parts of the cover plate 4 during insertion, preventing short circuit or electrical interference.
[0035] As Figure 6As shown, specifically, two first pins 1 are arranged on the motor 3, and two second pins 2 are arranged on the cover plate 4, and the third protective plate 215 is arranged on the side of each second pin 2 close to the other second pin 2. The arrangement of two first pins 1 on the motor 3 indicates that the electrical connection of the motor 3 adopts a double-pin design to enhance the stability of the electrical connection. The arrangement of two first pins 1 can provide redundant connection, so that even if one pin connection is unstable, the other pin can still maintain the effectiveness of the electrical connection, thereby ensuring the continuity and reliability of the motor 3 operation. The two second pins 2 arranged on the cover plate 4 correspond to the two first pins 1 on the motor 3, and the purpose is to realize the electrical connection of the double pins. This one-to-one matching ensures the accurate transmission of electrical signals and power supply between the motor 3 and the cover plate 4, and enhances the stability and reliability of the connection structure. On the side of each second pin 2 close to the other second pin 2, a third protective plate 215 is arranged. The arrangement of the third protective plate 215 aims to prevent the double pins from interfering with each other during insertion, and ensures the proper spacing and position fixing between the two second pins 2. In addition, the third protective plate 215 also has a limiting effect to prevent the second pin 2 from being offset under external force, thereby ensuring the stability of the electrical connection.
[0036] In the above embodiment, the double-pin connection structure improves the stability of the electrical connection: by arranging two pins on the motor 3 and the cover plate 4 respectively, a double-pin connection is formed, and this redundant design enhances the stability of the electrical connection. Even in harsh working environments, the accurate transmission of electrical signals can be maintained, and the risk of signal interruption caused by single-pin connection can be avoided. The limiting and anti-interference effect of the third protective plate 215: the design of the third protective plate 215 ensures that the two second pins 2 will not be electrically short-circuited or mechanically interfered due to being close to each other, and it also plays a positioning role to ensure the stable position of the second pin 2 on the cover plate. Even if subjected to external force during assembly, the reliability of the electrical connection can be maintained. The overall structure is enhanced: the double-pin design on the motor 2 and the cover plate 3, combined with the cooperative action of the third protective plate 215, not only improves the stability and reliability of the pin connection, but also enhances the structural stability and electrical safety of the entire electric actuator, so that it can maintain normal operation in various application environments.
[0037] Specifically, the first socket 221 has a width d1 along the extension direction of the female end of the first pin 1, and the second socket 211 has a width d2 along the extension direction of the female end of the second pin 2, satisfying the following relationship: 2mm≤d2-d1≤3mm. By controlling the width difference between the second socket 211 and the first socket 221 through the mathematical relationship 2mm≤d2-d1≤3mm, this design aims to provide a suitable guiding and insertion range to adapt to a series of inclination or deviation situations that may exist during the insertion process of the first pin 1. The setting of the upper limit 3mm and the lower limit 2mm of the width difference ensures that the pins can pass through the guidance of the second socket 211 under different angle deviations, and finally accurately insert into the first socket 221 to achieve electrical connection. At the same time, the control of this width difference also avoids the electrical connection problems caused by too wide or too narrow, such as poor contact or increased assembly difficulty.
[0038] Specifically, the protective sleeve 21 is made by one-piece injection molding process, and the protective sleeve 21 is made of flame-retardant and non-conductive organic polymer material. The use of one-piece injection molding process simplifies the manufacturing process of the protective sleeve 21, reduces subsequent processing steps such as assembly and welding, not only improves production efficiency, but also reduces production cost. Injection molding process can realize mass production quickly, while ensuring product consistency and precision, which is especially beneficial for large-scale production and assembly line operation. The one-piece injection molded protective sleeve 21 has better integrity, reduces structural defects caused by assembly or welding, and improves the protection capability of the second pin 2 and its female end. The selection of organic polymer material makes the protective sleeve 21 more structurally robust, which can resist external impact and vibration, thereby ensuring the stability of electrical connection. The use of flame-retardant and non-conductive organic polymer material improves the flame-retardant performance of the protective sleeve 21, reducing the risk of electrical fire. In an electrical environment, the use of this material is particularly important, as it can prevent fires caused by electrical faults or short circuits, ensuring the safety of equipment operation. At the same time, the non-conductive property also avoids the protective sleeve 21 becoming an accidental electrical path, preventing safety problems such as short circuit or accidental electric shock. Organic polymer material generally has good environmental adaptability and durability, can withstand various harsh environmental conditions such as temperature changes, humidity, corrosive substances, etc., prolonging the service life of the protective sleeve 21 and the entire electrical connection structure. The selection of this material plays an important role in improving the reliability and durability of the electric actuator. Organic polymer material is relatively lighter than metal material, which helps to realize the lightweight of the pin connection structure, reduces the overall weight of the electric actuator, and improves the portability and installation adaptability of the equipment. At the same time, the injection molding process provides design flexibility, which can adjust the shape and size of the protective sleeve 21 as needed to adapt to different types of electric actuators and installation environments.
[0039] According to Figures 4 to 6As shown, according to the second aspect of the present application, an air intake throttle valve is provided, including a motor 3, a cover plate 4, the above-mentioned pin connection structure and a housing 5. The housing 5 is provided with a mounting cavity, and the valve plate and the motor 3 are installed in the mounting cavity. The motor 3 is used to drive the valve plate. The housing 5 is provided with a mounting port, which is in communication with the mounting cavity. The cover plate 4 is cooperatively arranged with the housing 5 and covers the mounting port. The cover plate 4 is provided with a charging port 6, which is electrically connected with the second pin 2. The motor 3 is installed in the mounting cavity in the housing 5 and is directly connected with the valve plate. The function of the motor 3 is to drive the valve plate, and the air intake amount or airflow adjustment is controlled by adjusting the position of the valve plate, which is the core of the air intake throttle valve to realize its function. The cooperation between the motor 3 and the valve plate ensures the accuracy and response speed of the electric execution, and meets the demand of air intake control under different working conditions. The housing 5 not only accommodates the core components such as the motor 3 and the valve plate, but also cooperates with the cover plate 4 to close the mounting cavity. The close cooperation between the cover plate 4 and the housing 5 provides physical protection for the internal components, preventing external dust, moisture and other factors from affecting the normal work of electrical connections and mechanical components. On the other hand, the cooperation between the charging port 6 on the cover plate 4 and the mounting port on the housing 5 ensures the sealing and integrity of the electrical connection, avoiding electrical interference or safety problems that may occur during charging or power supply. The pin connection structure, as a key component for electrical connection between the motor 3 and the cover plate 4, is designed to solve the problem of inclination and deviation of the motor pin during assembly. By setting appropriate second pins 2 and pin female ends 22 on the cover plate 4, as well as using protective sleeves 21 and guide openings 212, it is ensured that the motor pin can successfully realize electrical connection even in the case of slight inclination, improving the reliability and consistency of electrical connection. The integration of this structure solves the common problem of poor contact in traditional connection methods, enhancing the running stability of the air intake throttle valve. The charging port 6 on the cover plate 4 is electrically connected with the second pin 2, which ensures that the air intake throttle valve can be supplied with power or charged through the charging port 6 without the need to disassemble the cover plate 4, improving the convenience and maintenance efficiency of the equipment. The direct electrical connection between the charging port 6 and the second pin 2 simplifies the electrical path, reduces the connection points, and thus reduces the possibility of electrical failure, enhancing the electrical safety and reliability of the equipment. The cooperation between the motor 3, the cover plate 4, the housing 5 and the charging port 6 and other components forms the complete structure of the air intake throttle valve. This cooperative relationship not only ensures the basic function of the air intake throttle valve, i.e. controlling the air intake amount by driving the valve plate with the motor 3, but also improves the electrical connection performance, convenience and maintenance efficiency of the equipment through the optimized pin connection structure and charging port 6 design. The synergy of the overall design enables the air intake throttle valve to maintain its efficient and stable working state in the face of different working conditions and use environments.
[0040] According to the third aspect of the present application, an engine is provided, comprising the above-mentioned intake throttle valve, the intake throttle valve further comprising: a first connecting pipe 7 connected with an intake pipe of the engine intake system, and a second connecting pipe 8 connected with an intercooler outlet pipe of the engine. The intake throttle valve is a key control component in the engine intake system, which can adjust the amount of air entering the engine according to the engine operating state and demand. By controlling the intake throttle valve, the engine can maintain optimal performance and efficiency under different operating conditions, while meeting the requirements of emission standards. The first connecting pipe 7 is responsible for connecting the intake pipe of the engine intake system with the intake throttle valve. This connection ensures that fresh air from the air cleaner or intake manifold and other air sources can flow into the intake throttle valve without obstruction. The size and shape of the first connecting pipe 7 are designed to match the interface of the intake pipe and the throttle valve to achieve optimal airflow efficiency and minimal resistance loss. The second connecting pipe 8 connects the intercooler outlet pipe with the intake throttle valve. In turbocharged engines, the intercooler is used to reduce the temperature of the supercharged air, thereby increasing air density and increasing the mass of air entering the engine per cycle. Through the connection of the second connecting pipe 8, the air cooled by the intercooler can smoothly reach the intake throttle valve, further optimizing the intake process and improving the engine's combustion efficiency and power output. The intake throttle valve, as the hub connecting the first connecting pipe 7 and the second connecting pipe 8, its position and design ensure the smooth flow of air from the intake pipe to the intercooler, and then from the intercooler to the throttle valve, and finally into the engine cylinder. The butterfly structure of the throttle valve can flexibly control the intake air volume, while the first connecting pipe 7 and the second connecting pipe 8 ensure the efficient delivery of fresh air and cooled air, respectively. The synergy between the three is crucial for achieving engine performance optimization. The synergy between the engine, the intake throttle valve, and the first connecting pipe 7 and the second connecting pipe 8 not only ensures the continuity and controllability of air supply, but also improves the efficiency and quality of air flow, thereby directly affecting the engine's combustion efficiency, power output, and fuel economy. In addition, this synergy can also reduce the resistance loss of the engine intake system, reduce energy consumption, and improve the overall system's response speed and stability.
[0041] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:
[0042] Improve the precision and reliability of electrical connection: by setting the guide opening 212 on the protective sleeve 21 of the second pin 2, when the first pin 1 deviates from the normal path due to assembly error or inclination, the inclined surface structure of the guide opening 212 can automatically correct the inclination of the first pin 1, ensuring that it is smoothly and accurately inserted into the first opening 221, enhancing the precision and reliability of electrical connection, and avoiding the problem of virtual connection and poor contact.
[0043] Enhanced structural stability and protection: The protective sleeve 21 is made of flame-retardant and non-conductive organic polymer material through one-piece injection molding process, which not only improves the overall stability and stability of the structure, but also has good electrical isolation and flame retardant performance, ensuring the safety of electrical connection and the durability of the equipment in complex working environment.
[0044] Optimized assembly process, improved production efficiency: The design of the first and second pins and the guide opening greatly reduces the dependence on accurate alignment during assembly, ensuring the correctness of electrical connection even on fast production lines, thereby improving assembly efficiency and reducing production cost.
[0045] Improved control performance of intake throttle valve: The intake throttle valve is driven by motor 3 to control the airflow of the valve plate, combined with the precise design of the electrical connection structure, to ensure the sensitivity and accuracy of airflow control, improving the operating efficiency and fuel economy of the engine under different working conditions.
[0046] Enhanced performance of engine intake system: The coordinated work of the intake throttle valve with the first and second connecting pipes 7 and 8 optimizes the air flow path, ensuring smooth and accurate air flow from the intake pipe to the intercooler and then to the intake throttle valve, improving the air flow efficiency of the entire intake system, thereby improving the power performance and response speed of the engine.
[0047] Reduced engine operation risk: By precisely controlling the width difference between the second socket and the first socket 221, the pin connection structure can automatically adjust into the first socket 221 through the guide opening 212 even if the first pin 1 deviates slightly, preventing false connection or short circuit and reducing the risk of engine operation caused by electrical connection problems.
[0048] Simplified maintenance and detection process: The material selection and structural design of the protective sleeve 21 ensure that even if the first pin 1 contacts the protective sleeve 21 during maintenance or detection, there will be no electrical short circuit, simplifying the detection process and reducing maintenance costs.
[0049] Improved overall performance and market competitiveness of the engine: The efficient airflow control of the intake throttle valve and the optimization of the pin connection structure jointly act on the engine's intake system, thereby improving the overall performance of the engine, including combustion efficiency, power output and emission control, which will enhance the engine's competitiveness in the market.
[0050] In summary, the application through the innovative design of the pin connection structure not only solves the common false connection problem in electrical connection, but also optimizes the control performance of the intake throttle valve, further improves the efficiency of the engine's intake system, significantly enhances the reliability, performance and market competitiveness of the engine, and embodies the practicality and innovation of the design.
[0051] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments consistent with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.
[0052] It should be noted that the terms "first", "second", and the like, herein do not necessarily have an either chronological or spatial relation. Rather, these terms can be used solely to distinguish a certain specific entity from another entity. It should be understood that the terms "comprises", "comprising", "includes", "including" and the like used herein are specifically intended to be interpreted as specifying the presence of stated features, steps, components, devices, objects or the like, but do not preclude the presence or addition of one or more other features, steps, components, devices, objects or the like.
[0053] The preferred embodiments of the present application have been described above with the specific embodiments. The present application is not limited to the above embodiments. It will be appreciated by those skilled in the art that the present application can be implemented in various ways without departing from the spirit and scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the present application.
Claims
1. A pin connection structure, characterized in that, include: A first pin (1) is used to be mounted on the motor (3) of the intake throttle valve, and the first pin (1) extends at least partially out of the motor (3); The second pin (2) is used to be installed on the cover plate (4) of the intake throttle valve. The second pin (2) includes a protective sleeve (21) and a female pin end (22). The protective sleeve (21) and the female pin end (22) are installed on the cover plate (4). The protective sleeve (21) is at least partially surrounding the outside of the female pin end (22). The end of the female pin end (22) is provided with a first insertion port (221) extending toward the cover plate (4). The protective sleeve (21) is provided with a second insertion port (211), which is located outside the first insertion port (221). The protective sleeve (21) has a guide opening (212) communicating with the second insertion port (211). The guide opening (212) gradually increases in the direction away from the first insertion port (221) so that the first insertion pin (1) enters the first insertion port (221) under the guidance of the guide opening (212).
2. The pin connection structure according to claim 1, characterized in that, The guide opening (212) has a large end and a small end. The large end is located at the end of the protective sleeve (21), and the small end is connected to the second insertion port (211). The guide opening (212) includes a slope structure located between the large end and the small end.
3. The pin connection structure according to claim 1, characterized in that, The second insertion end (211) near the cover plate (4) is the second insertion end, the first insertion end (221) near the cover plate (4) is the first insertion end, and the second insertion end is located on the side of the first insertion end away from the cover plate (4).
4. The pin connection structure according to claim 1, characterized in that, The protective sleeve (21) has a first protective plate (213) and a second protective plate (214). The first protective plate (213) and the second protective plate (214) are parallel and spaced apart. The female end of the pin (22) is sandwiched between the first protective plate (213) and the second protective plate (214). The first protective plate (213) and the second protective plate (214) are both provided with the second insertion port (211).
5. The pin connection structure according to claim 4, characterized in that, The protective sleeve (21) also includes a third protective plate (215), the opposite sides of which are connected to the same sidewall of the first protective plate (213) and the second protective plate (214), respectively.
6. The pin connection structure according to claim 5, characterized in that, The motor (3) is provided with two first pins (1), and the cover plate (4) is provided with two second pins (2). The third protective plates (215) of the two second pins (2) are respectively provided on the side of each second pin (2) close to the other second pin (2).
7. The pin connection structure according to claim 1, characterized in that, The width of the first socket (221) along the extension direction parallel to the female end of the pin is d1, and the width of the second socket (211) along the extension direction of the female end of the pin is d2, satisfying the following relationship: 2mm≤d2-d1≤3mm.
8. The pin connection structure according to claim 1, characterized in that, The protective sleeve (21) is made by a one-piece injection molding process; and / or, the protective sleeve (21) is made of a flame-retardant and non-conductive organic polymer material.
9. An intake throttle valve, comprising a motor (3) and a cover plate (4), characterized in that, The intake throttle valve includes: The pin connection structure according to any one of claims 1 to 8; The housing (5) has an installation cavity inside, in which a valve plate and the motor (3) are installed. The motor (3) is used to drive the valve plate. The housing (5) has an installation port that communicates with the installation cavity. The cover plate (4) is fitted to the housing (5) and covers the installation port. The cover plate (4) has a charging port (6) that is electrically connected to the second pin (2).
10. An engine comprising an intake system and an intercooler, characterized in that, The engine also includes: The intake throttle valve as described in claim 9; The intake throttle valve also includes a first connecting pipe (7) and a second connecting pipe (8). The first connecting pipe (7) is connected to the intake pipe of the engine intake system, and the second connecting pipe (8) is connected to the outlet pipe of the engine intercooler.