Throttle valve with icebreaking function

Abstract

The invention discloses a throttle valve with an ice breaking function, which comprises a throttle valve main body for adjusting the amount of air entering an engine, a bypass pipe arranged on a main through pipe and a valve plate for controlling the opening degree of a gas circulation channel, and an idling removing structure arranged on the throttle valve main body and used for removing an ice layer on the inner wall of the main through pipe. The idling removing structure comprises an umbrella-shaped base fixedly connected to the main through pipe, a sealed inner cavity is formed between the metal elastic piece and the inner wall of the umbrella-shaped base, the main through pipe is provided with a pressure transformation assembly for changing the air pressure in the inner cavity according to the air circulation change in the main through pipe, and the main through pipe is provided with a temperature conduction assembly for conducting the temperature in the movable heat conduction plate to the main through pipe. By arranging the idling removing structure, the deicing process can be automatically started when the temperature of the throttle valve is low, heat of an engine is effectively utilized, an ice layer at the throttle valve is rapidly melted, it is ensured that a vehicle is smoothly started and stably runs in the low-temperature environment, heat conduction is immediately cut off after deicing is completed, and therefore the air inlet temperature is prevented from being too high.

Description

Technical Field

[0001] The invention relates to the technical field of throttle valves, in particular to a throttle valve with an ice-breaking function. Background Art

[0002] In internal combustion engines and some power equipment, the throttle is a mechanical device used to control the air or fuel entering the engine. Its main function is to adjust the air flow entering the engine, thereby affecting the engine's power output and fuel efficiency. However, in low temperature environments, especially in cold winter, the throttle is prone to freezing and cannot work properly. The icing phenomenon causes the throttle to get stuck or move blocked, making the air flow control inaccurate, affecting the engine's start and operation, and may even cause engine failure. In this case, the vehicle may experience problems such as unstable idling and limited power output.

[0003] Chinese patent (publication number: CN116220930A), the scheme specifically includes: determining whether the throttle valve is frozen; when it is determined that the throttle valve is frozen, driving the throttle valve to move to a preset opening; obtaining the real-time opening of the throttle valve during the process of moving from the preset opening to closing; determining the target driving opening of the throttle valve according to the real-time opening and the preset opening offset; wherein the target driving opening is greater than the real-time opening; according to the target driving opening, driving the throttle valve to close and break the ice. Through this method, both the ice-breaking effect and the mechanical life of the throttle valve can be taken into account.

[0004] Chinese patent (Announcement No.: CN118499163A), in this scheme, the throttle body is arranged below the intake manifold, and the throttle body is connected to the air inlet of the intake manifold, and a water retaining rib is added around the pressure stabilizing chamber of the intake manifold near the air inlet. The height of the water retaining rib is set to 2mm~10mm. The water retaining rib is composed of two arc ribs, and the two arc ribs are arranged around the air inlet of the intake manifold. The two ends of the two arc ribs are connected to the pressure stabilizing chamber of the intake manifold, and the two arc ribs and the inner wall of the pressure stabilizing chamber of the intake manifold enclose the air inlet of the intake manifold inside. The present invention adds a water retaining rib near the air inlet inside the intake manifold cavity to block water droplets inside the intake manifold, so that they will not flow into the throttle to cause the throttle body to freeze, and can effectively prevent the water vapor in the intake manifold from liquefying and flowing into the throttle body, causing the throttle body to freeze in a low temperature environment.

[0005] The throttle valve is mainly composed of a main passage pipe and a bypass pipe. When a vehicle is in use, it is usually started first. At this time, the vehicle is in an idling state, that is, the engine is at a relatively low speed. At this time, the valve plate at the main passage pipe is in a closed or almost closed state, and the gas source of the engine is mainly through the bypass pipe. When the vehicle is in an idling state, although the engine is running at a relatively low speed, it can still generate heat. When the vehicle is running at a high speed, the bypass pipe is closed, and the gas enters the engine through the main passage pipe. Among them, when the existing throttle valve is in use, it is difficult to clear the ice layer that may appear at the position of its own valve plate through the heat generated by the engine in the idling state, and then the throttle valve with icing phenomenon is difficult to control the opening and closing degree of the valve plate.

[0006] At the same time, when the existing throttle is in use, it is difficult to autonomously adjust whether the de-icing process is needed according to the temperature state of the throttle position. If the throttle position is heated without de-icing, it will affect the intake temperature, causing the air entering the engine to have a lower density due to the increase in temperature, thereby reducing the amount of gas entering the engine, and ultimately affecting the engine's output efficiency and overall performance. Therefore, a throttle with an ice-breaking function is proposed. Summary of the invention

[0007] The purpose of the present invention is to provide a throttle with an ice-breaking function, which has the advantages of removing ice layers and preventing the intake temperature from being too high, and solves the problem of clearing ice layers that may appear at the valve plate position and preventing the intake temperature from being too high.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a throttle with an ice-breaking function, comprising a throttle body for adjusting the amount of air entering an engine, the throttle body comprising a plurality of main through-pipes, the main through-pipes being provided with bypass pipes and a valve plate for controlling the opening and closing degree of a gas flow channel, the bypass pipes being provided with solenoid valves, and the throttle body being provided with an idle structure for clearing ice from the inner wall of the main through-pipes; The idle structure comprises an umbrella-shaped seat fixedly connected to the main through pipe, a metal spring is arranged in the umbrella-shaped seat, and the outer peripheral surface of the metal spring is sealed and fixed on the inner wall of the umbrella-shaped seat, and a sealed inner chamber is formed between the metal spring and the inner wall of the umbrella-shaped seat; The main through-tube is provided with a pressure-changing component for changing the air pressure in the inner chamber according to the change of the gas flow therein, an active heat-conducting plate is provided at one end of the umbrella-shaped seat away from the main through-tube, and a temperature-conducting component for conducting the temperature in the active heat-conducting plate to the main through-tube is provided on the main through-tube; A positioning heat conducting plate is provided on one side of the movable heat conducting plate away from the umbrella-shaped seat, and the positioning heat conducting plate is fixedly connected to the throttle body, a plurality of sets of heat conducting wires are fixedly connected to the positioning heat conducting plate, and the heat conducting wires are fixedly connected to the engine, and a heat starting component is provided on the umbrella-shaped seat for driving the movable heat conducting plate to contact the positioning heat conducting plate when the air pressure in the inner chamber decreases; The main through pipe is also provided with a disconnection component for driving the movable heat conducting plate and the positioning heat conducting plate to separate.

[0009] Preferably, the transformer assembly comprises a hollow conical seat, the hollow conical seat is fixedly connected to the inner wall of the bypass pipe, a plurality of air duct openings are provided on the hollow conical seat, the air duct openings comprise an integrally formed narrow mouth portion, and a micro-diameter hole communicating with the gas between the narrow mouth portion is provided on the hollow conical seat; The hollow conical seat is provided with an annular air channel, the annular air channel is in gas communication with the plurality of groups of micro-diameter holes, and the annular air channel is in gas communication with the inner chamber.

[0010] Preferably, a return spring is provided in the inner chamber, and two ends of the return spring are respectively fixedly connected to the metal spring sheet and the inner wall of the umbrella-shaped seat.

[0011] Preferably, the heat-starting component comprises a traverse column arranged on an umbrella-shaped seat, and a receiving groove is provided on the umbrella-shaped seat for the traverse column to slide horizontally through, and an end of the traverse column facing the metal spring sheet is fixedly connected to an end seat, and a plurality of groups of blocking balls arranged in a circular array are provided on the end seat, and a ball groove is provided on the end seat for the blocking balls to slide and connect; The metal spring sheet is fixedly connected to a plug coaxially arranged with the end head seat on one side thereof facing the end head seat, and the outer peripheral surface of the plug is in sliding contact with the blocking ball, and the umbrella-shaped seat includes a step portion which is integrally formed and abuts against the blocking ball; The outer circumferential surface of the traverse column is sleeved with a pressure spring, and the two ends of the pressure spring are respectively fixedly connected to the end seat and the umbrella-shaped seat; One end of the traverse column away from the end seat is fixedly connected to the movable heat conducting plate.

[0012] Preferably, the pressure spring is in an extended state in an initial state.

[0013] Preferably, the temperature transfer assembly comprises a heat transfer plate fixedly connected to the main through pipe, and an inner key cylinder is fixedly connected to the side of the heat transfer plate facing the movable heat transfer plate, the inner key cylinder is provided with a spline column, and the inner key cylinder is provided with a spline groove for horizontal sliding connection of the spline column; The spline column is fixedly connected to the movable heat conducting plate.

[0014] Preferably, the movable heat conducting plate includes an integrally formed convex corner portion on one side facing the positioning heat conducting plate, and the positioning heat conducting plate is provided with a tooth groove that fits with the convex corner portion.

[0015] Preferably, the disconnection assembly comprises a base plate fixedly connected to the throttle body, a fixed resistance plate is provided on the base plate, and a groove body 1 is provided on the base plate for the fixed resistance plate to be slidably connected in the horizontal direction; The heat transfer plate is fixedly connected with a temperature-sensitive memory alloy, and one end of the temperature-sensitive memory alloy away from the fixed resistance plate is fixedly connected to the heat transfer plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can automatically start the deicing process when the throttle temperature is low by setting an idle structure, effectively utilize the heat of the engine, quickly melt the ice layer at the throttle, ensure the smooth start and stable operation of the vehicle in a low-temperature environment, and melt the ice by the heat of the engine itself instead of an external heating system, thereby saving additional energy consumption, and immediately cut off heat conduction after deicing is completed, thereby preventing the intake temperature from being too high.

[0017] 2. The present invention provides a disconnection component to automatically cut off heat conduction after deicing is completed, thereby preventing the intake temperature from being too high and ensuring that the air density is not affected, thereby maintaining the output efficiency and fuel economy of the engine and avoiding the decline in power and performance due to high-temperature intake air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the components where the main through pipe of the present invention is located; Figure 3 This is a schematic diagram of the components where the umbrella-shaped seat of the present invention is located; Figure 4 This is a schematic diagram of the components where the heat transfer plate of the present invention is located; Figure 5 This is a schematic diagram of the components where the hollow conical seat of the present invention is located; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the components where the inner chamber of the present invention is located; Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle; Fig. 9 It is a schematic diagram of the components where the inner key cylinder of the present invention is located.

[0019] In the figure: 1. throttle body; 2. main passage pipe; 3. valve plate; 4. bypass pipe; 5. hollow conical seat; 6. air duct opening; 7. narrow mouth; 8. micro-diameter hole; 9. annular air duct; 10. umbrella-shaped seat; 11. metal spring; 12. return spring; 13. inner chamber; 14. end seat; 15. latch; 16. resistance ball; 17. step portion; 18. transverse column; 19. pressure spring; 20. movable heat conduction plate; 201. convex corner portion; 21. spline column; 22. positioning heat conduction plate; 23. inner key cylinder; 24. temperature-sensitive memory alloy; 25. spline groove; 26. heat transfer plate; 27. substrate; 28. fixed resistance plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 9 The present invention provides a technical solution: a throttle with an ice-breaking function, comprising a throttle body 1 for adjusting the amount of air entering an engine, the throttle body 1 comprising a plurality of main through pipes 2, the main through pipes 2 being provided with a bypass pipe 4 and a valve plate 3 for controlling the opening and closing degree of a gas flow channel, the bypass pipe 4 being provided with a solenoid valve, and the throttle body 1 being provided with an idle structure for clearing ice from an inner wall of the main through pipe 2.

[0022] The idle structure includes an umbrella-shaped seat 10 fixedly connected to the main through pipe 2, a metal spring 11 is arranged in the umbrella-shaped seat 10, and the outer peripheral surface of the metal spring 11 is sealed and fixed on the inner wall of the umbrella-shaped seat 10, and a sealed inner chamber 13 is formed between the metal spring 11 and the inner wall of the umbrella-shaped seat 10; The main through-tube 2 is provided with a pressure-changing component for changing the air pressure in the inner chamber 13 according to the change of the air flow therein, and the umbrella-shaped seat 10 is provided with a movable heat-conducting plate 20 at one end away from the main through-tube 2, and the main through-tube 2 is provided with a temperature-conducting component for conducting the temperature in the movable heat-conducting plate 20 to the main through-tube 2; A positioning heat conducting plate 22 is provided on one side of the movable heat conducting plate 20 away from the umbrella-shaped seat 10, and the positioning heat conducting plate 22 is fixedly connected to the throttle body 1, and a plurality of groups of heat conducting wires are fixedly connected to the positioning heat conducting plate 22, and the heat conducting wires are fixedly connected to the engine, and a heat starting component is provided on the umbrella-shaped seat 10 for driving the movable heat conducting plate 20 and the positioning heat conducting plate 22 to contact each other when the air pressure in the inner chamber 13 decreases; The main through pipe 2 is also provided with a disconnection component for driving the movable heat conducting plate 20 and the positioning heat conducting plate 22 to separate.

[0023] like Figure 1-Figure 4 As shown, when the vehicle is started but not driving, the vehicle is in an idling state. At this time, the gas mainly enters the engine through the bypass pipe 4. At this time, when the gas entering the engine flows through the bypass pipe 4, it can trigger the heating component to operate, thereby driving the movable heat conductive plate 20 to move toward the positioning heat conductive plate 22.

[0024] Among them, when the temperature at the main through pipe 2 is higher than the set value, it is determined that there is no ice formation in the main through pipe 2. At this time, when the heating component is running, under the restriction of the disconnection component, the movable heat conductive plate 20 cannot contact the positioning heat conductive plate 22. When the temperature at the main through pipe 2 is lower than or equal to the set value, the operation of the heating component can drive the movable heat conductive plate 20 to contact the positioning heat conductive plate 22. At the same time, multiple groups of heat conductive wires transfer the temperature at the engine to the positioning heat conductive plate 22, and transfer the temperature to the movable heat conductive plate 20 that is closely attached to the positioning heat conductive plate 22.

[0025] At the same time, driven by the temperature transfer component, the heat on the movable heat transfer plate 20 can be transferred to the main pipe 2, thereby heating the positioning heat transfer plate 22, thereby breaking the ice layer on the inner wall of the main pipe 2. At the same time, as the temperature of the main pipe 2 gradually rises until the temperature thereon exceeds the set value, it is determined that the ice layer on the main pipe 2 has been broken, and then the disconnection component is driven to operate, so that the movable heat transfer plate 20 is separated from the positioning heat transfer plate 22, so as to prevent the heat of the engine from being continuously transferred to the main pipe 2.

[0026] When the car is running, the solenoid valve on the bypass pipe 4 is closed, and the gas enters the engine through the main pipe 2. If the temperature of the engine is continuously transmitted to the main pipe 2, the intake temperature of the engine will be driven higher, and the higher intake temperature will cause the air density to decrease, thereby reducing the amount of oxygen contained in the unit volume of air. Therefore, after the temperature of the main pipe 2 exceeds the setting, it is determined that there is no ice on it, thereby cutting off the heat conduction process to avoid the engine intake temperature being too high, thereby ensuring the output efficiency and overall performance of the engine.

[0027] In one of the more preferred embodiments, the transformer assembly includes a hollow conical seat 5, the hollow conical seat 5 is fixedly connected to the inner wall of the bypass pipe 4, a plurality of air duct openings 6 are provided on the hollow conical seat 5, the air duct openings 6 include an integrally formed narrow mouth portion 7, and a micro-diameter hole 8 is provided on the hollow conical seat 5 for gas communication with the narrow mouth portion 7; The hollow conical seat 5 is provided with an annular air passage 9 , and the annular air passage 9 is in gas communication with the plurality of groups of micro-diameter holes 8 , and the annular air passage 9 is in gas communication with the inner chamber 13 .

[0028] A return spring 12 is disposed in the inner chamber 13 , and two ends of the return spring 12 are fixedly connected to the metal spring 11 and the inner wall of the umbrella-shaped seat 10 , respectively.

[0029] like Figure 5-Figure 7 As shown, when the vehicle is idling, the gas enters the engine through the bypass pipe 4. At this time, the gas will flow through the air duct opening 6 on the hollow conical seat 5. According to the Venturi effect, the Venturi effect is expressed as follows: when the fluid passes through the tightened channel, the flow rate will increase, and its size is inversely proportional to the cross-section of the tightening part. Therefore, when the gas passes through the narrow mouth 7, the flow rate at the narrow mouth 7 will increase, and under the Bernoulli effect, low pressure will be generated near the highly flowing fluid. Therefore, low pressure will be generated at the narrow mouth 7, so that suction will be generated at the micro-diameter hole 8 and the annular airway 9, wherein the annular airway 9 is in communication with the inner chamber 13. Therefore, when gas flows in the bypass pipe 4, negative pressure will be generated in the inner chamber 13 to drive the metal spring 11 to deform.

[0030] At the same time, when negative pressure occurs in the inner chamber 13, the return spring 12 can be driven to compress and deform synchronously. When the vehicle is driving, the solenoid valve on the bypass pipe 4 is closed, and the gas mainly enters the engine through the main pipe 2. At this time, high-speed gas will no longer flow at the narrow mouth 7. Therefore, under the action of the return spring 12, the inner chamber 13 can be restored to normal pressure and drive the metal spring 11 to restore elastic deformation.

[0031] On the basis of the transformer assembly embodiment, the heat-starting assembly includes a traverse column 18 arranged on an umbrella-shaped seat 10, and the umbrella-shaped seat 10 is provided with a receiving groove for the traverse column 18 to slide horizontally through, and the end of the traverse column 18 facing the metal spring 11 is fixedly connected to the end seat 14, and the end seat 14 is provided with a plurality of groups of blocking balls 16 arranged in a circular array, and the end seat 14 is provided with a ball groove for the blocking balls 16 to slide and connect; The metal spring sheet 11 is fixedly connected to a plug 15 coaxially arranged with the end seat 14 on one side thereof, and the outer peripheral surface of the plug 15 is in sliding contact with the blocking ball 16. The umbrella-shaped seat 10 includes a step portion 17 integrally formed and abuttingly connected with the blocking ball 16. The outer circumference of the traverse column 18 is sleeved with a pressure spring 19, and the two ends of the pressure spring 19 are fixedly connected to the end seat 14 and the umbrella seat 10 respectively; One end of the traverse column 18 away from the end seat 14 is fixedly connected to the movable heat conducting plate 20 .

[0032] The pressure spring 19 is in an extended state in an initial state.

[0033] like Figure 3 , Figure 7 and Figure 8As shown, in the initial state, the pressure spring 19 is in an extended state, at which time the latch 15 is between the multiple groups of blocking balls 16 and is in squeeze contact with the multiple groups of blocking balls 16. Therefore, the multiple groups of blocking balls 16 cannot retract into the end seat 14 due to the restriction of the step portion 17, thereby making the pressure spring 19 unable to restore its deformation.

[0034] At the same time, when the vehicle is in an idling state and the air pressure in the inner chamber 13 is driven to decrease through the transformer assembly, the metal spring 11 is deformed and drives the latch 15 away from the end seat 14. At this time, the multiple groups of resistance balls 16 will no longer be restricted by the latch 15, and then, under the action of the elastic potential energy of the pressure spring 19, they can move toward the center of the end seat 14. When the pressure spring 19 is restored, it drives the end seat 14 and the traverse column 18 to move toward the side away from the umbrella-shaped seat 10, and then drives the movable heat conductive plate 20 to move toward the side of the positioning heat conductive plate 22 until the movable heat conductive plate 20 is tightly attached to the positioning heat conductive plate 22.

[0035] At the same time, when the movable heat conductive plate 20 and the positioning heat conductive plate 22 are in close contact, the heat generated by the engine in the idle state can be transferred to the movable heat conductive plate 20 through the heat conductive wire and the positioning heat conductive plate 22, and the heat is transferred to the main through-tube 2 through the temperature conductive component, thereby increasing the temperature at the main through-tube 2 to break the ice layer on the inner wall of the main through-tube 2.

[0036] Based on the embodiment of the heat-starting component, the temperature-conducting component includes a heat transfer plate 26 fixedly connected to the main through-tube 2, and the heat transfer plate 26 is fixedly connected to an inner key cylinder 23 on one side facing the movable heat-conducting plate 20, and a spline column 21 is provided on the inner key cylinder 23, and a spline groove 25 for the spline column 21 to be horizontally slidably connected is opened on the inner key cylinder 23; The spline column 21 is fixedly connected to the movable heat conducting plate 20 .

[0037] The movable heat conducting plate 20 includes an integrally formed convex corner portion 201 on one side facing the positioning heat conducting plate 22 , and the positioning heat conducting plate 22 is provided with a tooth groove that fits with the convex corner portion 201 .

[0038] like Figure 3 , Figure 4 and Fig. 9 As shown, when the movable heat conductive plate 20 contacts the positioning heat conductive plate 22, the positioning heat conductive plate 22 can transfer the temperature generated when the engine is running to the movable heat conductive plate 20, and then transfer it to the heat transfer plate 26 through the spline column 21 and the spline groove 25 in turn, wherein the heat transfer plate 26 is fixedly arranged on the main through pipe 2, and then the heat is transferred to the heat transfer plate 26 to promote the heat transfer plate 26 to heat up, thereby breaking the ice layer in the main through pipe 2.

[0039] Among them, the heat transfer plate 26 can be set at the opening and closing position of the valve plate 3 in actual use, thereby mainly increasing the temperature at the valve plate 3 to avoid the ice layer there interfering with the opening and closing process of the valve plate 3. At the same time, by setting the convex corner portion 201 on the movable heat conduction plate 20 and the tooth groove on the positioning heat conduction plate 22, the contact area between the two can be increased, thereby ensuring the heat transfer ratio and reducing heat loss.

[0040] Based on the embodiment of the temperature conduction component, the disconnection component includes a base plate 27 fixedly connected to the throttle body 1, a fixed resistance plate 28 is provided on the base plate 27, and a groove body 1 for the fixed resistance plate 28 to be slidably connected in the horizontal direction is opened on the base plate 27; The heat transfer plate 26 is fixedly connected with a temperature-sensitive memory alloy 24 , and one end of the temperature-sensitive memory alloy 24 away from the fixed resistance plate 28 is fixedly connected to the heat transfer plate 26 .

[0041] like Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig. 9 As shown, in the initial state, the pressure spring 19 is in an extended state. If the temperature at the main through-tube 2 is lower than the set value at this time, the temperature-sensitive memory alloy 24 can be naturally extended, and the fixed resistance plate 28 does not contact the movable heat conductive plate 20. When the vehicle is in an idle state, the movable heat conductive plate 20 can be close to the positioning heat conductive plate 22 under the drive of the voltage transformer and the heat-starting component. During this process, the fixed resistance plate 28 will not hinder the movement of the movable heat conductive plate 20 to ensure smooth contact between the movable heat conductive plate 20 and the positioning heat conductive plate 22, and complete the heat conduction process to eliminate the ice layer in the main through-tube 2.

[0042] At the same time, when the temperature at the main passage 2 reaches the set value, the temperature-sensitive memory alloy 24 is in contact with the movable heat conductive plate 20 in the initial state. At this time, when the vehicle is idling, although the inner chamber 13 presents low pressure and the latch 15 is disengaged from the blocking ball 16, under the restriction of the fixed resistance plate 28, the pressure spring 19 still cannot restore its deformation, thereby hindering the movement of the movable heat conductive plate 20 and preventing the movable heat conductive plate 20 from contacting the positioning heat conductive plate 22, thereby avoiding the phenomenon that the intake temperature at the main passage 2 is too high due to the heat generated when the engine is running.

[0043] Among them, it should be noted that when the initial temperature state of the main through-tube 2 is lower than the set value, a negative pressure phenomenon occurs in the inner chamber 13 and drives the pressure spring 19 to restore elastic deformation, and the movable heat conductive plate 20 contacts the positioning heat conductive plate 22 under the action of the elastic potential energy of the pressure spring 19. However, with the conduction of heat, the temperature of the heat transfer plate 26 fixedly arranged with the main through-tube 2 gradually increases, and the temperature at the heat transfer plate 26 represents the temperature change at the main through-tube 2. After the temperature of the heat transfer plate 26 increases with the heat conduction and reaches the set temperature of the temperature-sensitive memory alloy 24, the temperature-sensitive memory alloy 24 can drive the fixed resistance plate 28 to move toward the inner key cylinder 23, and through the movement process of the temperature-sensitive memory alloy 24, the movable heat conductive plate 20 is separated from the positioning heat conductive plate 22 to cut off the heat transfer process. At this time, it means that the ice layer at the main through-tube 2 has been eliminated, thereby preventing the temperature at the main through-tube 2 from continuing to rise.

[0044] At the same time, when the fixed resistance plate 28 pushes the movable heat conducting plate 20 to move toward the inner key cylinder 23, it can drive the pressure spring 19 to stretch and deform again, and then drive the blocking ball 16 to correspond to the position of the pin 15 again. At this time, the blocking ball 16 cannot restore its deformation due to the restriction of the step portion 17 and the pin 15, thereby achieving the purpose of driving the movable heat conducting plate 20, the transverse column 18 and the pressure spring 19 to reset, and can simultaneously avoid the phenomenon of excessively high intake temperature caused by the temperature rise at the main through pipe 2.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A throttle with an ice-breaking function, comprising a throttle body (1) for adjusting the amount of air entering an engine, the throttle body (1) comprising a plurality of main passages (2), the main passages (2) being provided with bypass pipes (4) and a valve plate (3) for controlling the opening and closing degree of a gas flow passage, the bypass pipes (4) being provided with a solenoid valve, characterized in that: The throttle body (1) is provided with an idle structure for clearing ice from the inner wall of the main through pipe (2); The idle structure comprises an umbrella-shaped seat (10) fixedly connected to the main through pipe (2), a metal spring (11) being arranged in the umbrella-shaped seat (10), and an outer peripheral surface of the metal spring (11) being sealed and fixed on an inner wall of the umbrella-shaped seat (10), so that a sealed inner chamber (13) is formed between the metal spring (11) and the inner wall of the umbrella-shaped seat (10); The main through-tube (2) is provided with a pressure-changing component for changing the air pressure in the inner chamber (13) according to changes in the air flow therein; an end of the umbrella-shaped seat (10) away from the main through-tube (2) is provided with a movable heat-conducting plate (20); and the main through-tube (2) is provided with a temperature-conducting component for conducting the temperature in the movable heat-conducting plate (20) to the main through-tube (2).

2. The throttle with ice-breaking function according to claim 1, characterized in that: A positioning heat conducting plate (22) is provided on a side of the movable heat conducting plate (20) away from the umbrella-shaped seat (10), and the positioning heat conducting plate (22) is fixedly connected to the throttle body (1), a plurality of groups of heat conducting wires are fixedly connected to the positioning heat conducting plate (22), and the heat conducting wires are fixedly connected to the engine, and a heat starting component is provided on the umbrella-shaped seat (10) for driving the movable heat conducting plate (20) and the positioning heat conducting plate (22) to contact each other when the air pressure in the inner chamber (13) decreases; The main through pipe (2) is also provided with a disconnection component for driving the movable heat conducting plate (20) and the positioning heat conducting plate (22) to separate.

3. The throttle with ice-breaking function according to claim 2, characterized in that: The transformer assembly comprises a hollow conical seat (5), the hollow conical seat (5) being fixedly connected to the inner wall of the bypass pipe (4), the hollow conical seat (5) being provided with a plurality of groups of air duct openings (6), the air duct openings (6) comprising an integrally formed narrow mouth portion (7), and the hollow conical seat (5) being provided with a micro-diameter hole (8) for gas communication with the narrow mouth portion (7); The hollow conical seat (5) is provided with an annular air passage (9), the annular air passage (9) and the plurality of groups of micro-diameter holes (8) are in gas communication, and the annular air passage (9) and the inner chamber (13) are in gas communication; A return spring (12) is provided in the inner chamber (13), and two ends of the return spring (12) are respectively fixedly connected to the metal spring (11) and the inner wall of the umbrella-shaped seat (10); The heat-starting component comprises a traverse column (18) arranged on an umbrella-shaped seat (10), and the umbrella-shaped seat (10) is provided with a receiving groove for the traverse column (18) to slide horizontally through, and one end of the traverse column (18) facing the metal spring sheet (11) is fixedly connected to an end seat (14), and the end seat (14) is provided with a plurality of groups of blocking balls (16) arranged in a circular array, and the end seat (14) is provided with a ball groove for the blocking balls (16) to be slidably connected; The metal spring sheet (11) is fixedly connected to a latch pin (15) coaxially arranged with the end head seat (14) on one side thereof facing the end head seat (14), and the outer peripheral surface of the latch pin (15) is in sliding contact with the blocking ball (16). The umbrella-shaped seat (10) includes a step portion (17) integrally formed and abuttingly connected with the blocking ball (16).

4. The throttle valve with ice-breaking function according to claim 3, characterized in that: The outer circumferential surface of the traverse column (18) is sleeved with a pressure spring (19), and the two ends of the pressure spring (19) are respectively fixedly connected to the end seat (14) and the umbrella-shaped seat (10); One end of the traverse column (18) away from the end seat (14) is fixedly connected to the movable heat conduction plate (20).

5. The throttle valve with ice-breaking function according to claim 4, characterized in that: The thermal conduction assembly comprises a heat transfer plate (26) fixedly connected to the main through pipe (2), an inner key cylinder (23) fixedly connected to the side of the heat transfer plate (26) facing the movable heat conduction plate (20), a spline column (21) being provided on the inner key cylinder (23), and a spline groove (25) for horizontal sliding connection of the spline column (21) being provided on the inner key cylinder (23).

6. The throttle with ice-breaking function according to claim 5, characterized in that: The pressure spring (19) is in an extended state in an initial state; The spline column (21) is fixedly connected to the movable heat conducting plate (20).

7. The throttle with ice-breaking function according to claim 6, characterized in that: The side of the movable heat conducting plate (20) facing the positioning heat conducting plate (22) comprises an integrally formed convex corner portion (201), and the positioning heat conducting plate (22) is provided with a tooth groove that fits with the convex corner portion (201).

8. The throttle valve with ice-breaking function according to claim 7, characterized in that: The disconnection assembly comprises a base plate (27) fixedly connected to the throttle body (1), a fixed resistance plate (28) being provided on the base plate (27), and a groove body (1) for the fixed resistance plate (28) to be slidably connected in a horizontal direction being provided on the base plate (27); The heat transfer plate (26) is fixedly connected to a temperature-sensitive memory alloy (24); one end of the temperature-sensitive memory alloy (24) away from the fixed resistance plate (28) is fixedly connected to the heat transfer plate (26).

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