Electronic throttle valve, engine, and vehicle

Abstract

The present application discloses an electronic throttle valve, an engine, and a vehicle. The electronic throttle valve comprises a valve body, a rotating shaft, a valve plate, and a heating assembly. The valve body is provided with an air inlet channel, the rotating shaft is rotatably connected to the valve body and at least a part of the rotating shaft is located in the air inlet channel, and the valve plate is arranged in the air inlet channel and connected to the rotating shaft. The heating assembly comprises a heating member, and the heating member is arranged on at least one of the valve body and the valve plate.

Description

Electronic throttle valve, engine and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202420446184.3 and application date of March 7, 2024, and claims the priority of the above-mentioned Chinese patent application. The entire content of the above-mentioned Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the technical field of electronic throttle valves, and in particular to an electronic throttle valve, an engine and a vehicle. Background Art

[0004] In related technology, vehicle engines are typically equipped with an electronic throttle valve to precisely control the engine's intake air flow. Specifically, the electronic throttle valve comprises a valve plate, a valve body, a rotating shaft, and a drive mechanism. The valve plate is mounted within the valve body's intake passage and connected to the drive mechanism via the rotating shaft. The drive mechanism controls the valve plate's opening angle by rotating the rotating shaft, thereby adjusting the intake passage's cross-sectional area and regulating the engine's intake air flow.

[0005] However, due to the low temperature in the north in winter, when there is a lot of water vapor in the engine intake system, after the engine is shut down, the water vapor will freeze in the gap between the valve plate and the valve body, causing the valve plate to be unable to open normally, and the engine will not be able to cold start, resulting in a poor driving experience for users. Summary of the Invention

[0006] The present disclosure aims to address, at least to some extent, one of the technical problems in the related art. To this end, embodiments of the present disclosure provide an electronic throttle valve to enable a normal cold start of an engine in cold environments, an engine to enable a normal cold start of an engine in cold environments, and a vehicle that provides a good user experience.

[0007] The electronic throttle valve disclosed herein includes a valve body, a rotating shaft, a valve plate and a heating assembly, wherein the valve body has an air intake passage; the rotating shaft is rotatably connected to the valve body and at least a portion of the rotating shaft is located in the air intake passage; the valve plate is arranged in the air intake passage and connected to the rotating shaft; the heating assembly includes a heating element, which is arranged on at least one of the valve body and the valve plate.

[0008] In some embodiments, the heating element is a heating plate, which is attached to the inner wall of the air inlet channel of the valve body and is arranged around the valve plate in the circumferential direction of the air inlet channel.

[0009] In some embodiments, the heating plate is arranged around the valve plate, and the heating plate has a first avoidance hole for the rotating shaft to pass through.

[0010] In some embodiments, the electronic throttle valve disclosed herein further includes an insulating member, which is disposed between the valve body and the heating plate. The insulating member is connected to the valve body, and the heating plate is connected to the insulating member. The insulating member has a second avoidance hole for the rotating shaft to pass through.

[0011] In some embodiments, the heating plate has a positive electrode and a negative electrode, and the valve body has a first mounting hole and a second mounting hole;

[0012] The heating assembly further includes a first conductive member, which is provided on the first mounting hole. The first conductive member includes a first conductive portion and a first wire. The insulating member has a third avoidance hole for the first conductive portion to pass through. The first conductive portion is adapted to extend into the air inlet passage and be electrically connected to the positive electrode of the heating plate. The first wire is used to be connected to a heating power source. And / or

[0013] A second conductive member is arranged on the second mounting hole, the second conductive member includes a second conductive part and a second wire, the insulating member also has a fourth avoidance hole for the second conductive part to pass through, the second conductive part is suitable for extending into the air intake channel and being electrically connected to the negative electrode of the heating plate, and the second wire is used to be connected to the heating power supply.

[0014] In some embodiments, the first conductive member includes a first mounting portion provided between the first conductive portion and the first conductive wire, the first mounting portion being threadedly connected to the first mounting hole; and / or

[0015] The second conductive member includes a second mounting portion provided between the second conductive portion and the second conductive wire, and the second mounting portion is threadedly connected to the second mounting hole.

[0016] In some embodiments, the first conductive member further includes a first screwing portion provided between the first conductive wire and the first mounting portion, the first screwing portion being used to screw the first mounting portion; and / or

[0017] The second conductive member further includes a second screwing portion provided between the second conductive wire and the second mounting portion, and the second screwing portion is used for screwing the second mounting portion.

[0018] In some embodiments, the first conductive wire includes a first wire body and a first PIN needle, one end of the first wire body is electrically connected to the first conductive portion, and the other end of the first wire body is electrically connected to the first PIN needle; and / or

[0019] The second wire includes a second wire body and a second PIN needle. One end of the second wire body is electrically connected to the second conductive portion, and the other end of the second wire body is electrically connected to the second PIN needle.

[0020] The engine disclosed herein includes the electronic throttle valve described in any one of the above embodiments.

[0021] The vehicle of the present disclosure includes the engine described in any one of the above embodiments.

[0022] In the cold winter environment of northern China, when the electronic throttle valve disclosed herein contains a large amount of water vapor in the engine intake system and freezes in the gap between the valve body and the valve plate, before the engine is started, a heating element is used to heat one of the valve body and the valve plate. The heat generated by the heating element is transferred to the other of the valve body and the valve plate, and then the heat is transferred through the other of the valve body and the valve plate to the ice between the valve body and the valve plate, thereby melting the ice between the valve body and the valve plate. When the engine is started normally, the rotating shaft can drive the valve plate to open a certain angle to achieve normal engine air intake, thereby achieving a normal cold start of the engine in cold conditions, and providing a better driving experience for users. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of an electronic throttle valve according to an embodiment of the present application.

[0024] FIG2 is a schematic diagram of a partial structure of an electronic throttle valve according to an embodiment of the present application.

[0025] FIG3 is a schematic diagram of a partial structural decomposition of an electronic throttle valve according to an embodiment of the present application.

[0026] FIG4 is a partial cross-sectional view of the electronic throttle valve according to an embodiment of the present application.

[0027] FIG5 is a schematic structural diagram of a first conductive member and a second conductive member according to an embodiment of the present application.

[0028] Figure markings: 100, electronic throttle valve; 1, valve body; 101, intake channel; 102, first mounting hole; 103, second mounting hole; 2, rotating shaft; 3, valve plate; 4, heating element; 401, first avoidance hole; 402, positive electrode; 403, negative electrode; 5, insulating element; 501, second avoidance hole; 502, third avoidance hole; 503, fourth avoidance hole; 6, first conducting element; 601, first conductive part; 602, first wire; 6021, first wire body; 6022, first PIN needle; 603, first mounting part; 604, first tightening part; 7, second conducting element; 701, second conductive part; 702, second wire; 7021, second wire body; 7022, second PIN needle; 703, second mounting part; 704, second tightening part. DETAILED DESCRIPTION

[0029] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present application, but should not be understood as limiting the present application.

[0030] As shown in Figures 1 to 5, an electronic throttle valve 100 according to an embodiment of the present application includes a valve body 1, a rotating shaft 2, a valve disc 3, and a heating assembly. The valve body 1 has an air intake passage 101. The rotating shaft 2 is rotatably connected to the valve body 1, with at least a portion of the rotating shaft 2 located within the air intake passage 101. The valve disc 3 is disposed within the air intake passage 101 and connected to the rotating shaft 2. The heating assembly includes a heater 4, which is disposed on at least one of the valve body 1 and the valve disc 3.

[0031] As shown in Figure 2, the central axis of shaft 2 is perpendicular to the central axis of intake passage 101. One end of shaft 2 extends into intake passage 101 of valve body 1, while the other end of shaft 2 is located outside intake passage 101 and is connected to a drive mechanism to rotate shaft 2. The drive mechanism can be a servo motor or a stepper motor, connected to shaft 2 via a gear pair. Rotation of shaft 2 drives valve plate 3, opening valve plate 3 to different angles, changing the flow cross-sectional area of ​​intake passage 101, and thereby adjusting the engine intake flow rate.

[0032] The heating element 4 is provided on at least one of the valve body 1 and the valve disc 3. It can be understood that the heating element 4 is provided only on the valve body 1, or the heating element 4 is provided only on the valve disc 3, or the heating element 4 is provided on both the valve body 1 and the valve disc 3. When the heating element 4 is provided on the valve body 1, the heating element 4 can be provided inside the air intake passage 101 or outside the air intake passage 101.

[0033] Specifically, in the cold winter environment of northern China, when a large amount of water vapor in the engine intake system freezes in the gap between the valve body 1 and the valve plate 3, before the engine is started, the heater 4 is used to heat one of the valve body 1 and the valve plate 3. The heat generated by the heater 4 is transferred to the one of the valve body 1 and the valve plate 3. The heat is then transferred to the ice between the valve body 1 and the valve plate 3 through the one of the valve body 1 and the valve plate 3 to melt the ice between the valve body 1 and the valve plate 3. When the engine is started normally, the rotating shaft 2 can drive the valve plate 3 to open a certain angle to achieve normal air intake for the engine, thereby achieving a normal cold start of the engine in a cold environment, giving users a better driving experience.

[0034] In some embodiments, the heating element 4 is a heating plate, which is attached to the inner wall of the air inlet channel 101 of the valve body 1 and is arranged around the valve plate 3 in the circumferential direction of the air inlet channel 101. For example, the heating plate can be a PTC heating plate.

[0035] As shown in FIG3 , it is understood that when the valve disc 3 is in the closed state, a small assembly gap exists between the valve disc 3 and the valve body 1 . By configuring the heater 4 as a heater plate, the assembly gap between the valve disc 3 and the valve body 1 can be utilized for installation of the heater plate, thereby reducing the space occupied by the heater 4 and facilitating improved compactness of the electronic throttle valve 100 . Furthermore, since the heater 4 is located in the gap between the valve disc 3 and the valve body 1 , when the heater 4 is heating, it can directly contact and exchange heat with the ice between the valve disc 3 and the valve body 1 , thereby facilitating increased melting speed and improved ice-breaking efficiency.

[0036] Optionally, a heating plate is disposed around the valve plate 3 and has a first avoidance hole 401 formed therein for the shaft 2 to pass through. As shown in FIG3 , the shaft 2 is connected to the valve plate 3 after passing through the first avoidance hole 401. Since the heating plate is disposed around the valve plate 3, the circumference of the valve plate 3 is heated more evenly during deicing, allowing for simultaneous breaking of ice around the valve plate 3, further improving deicing efficiency.

[0037] In some embodiments, the electronic throttle valve 100 of the embodiment of the present application also includes an insulating member 5, which is arranged between the valve body 1 and the heating plate. The insulating member 5 is connected to the valve body 1, and the heating plate is connected to the insulating member 5. The insulating member 5 has a second avoidance hole 501 for the rotating shaft 2 to pass through.

[0038] During installation, the insulating member 5 is first fitted onto the inner wall of the air inlet passage 101, and then the heating plate is fitted onto the insulating member 5. Both the insulating member 5 and the heating plate can be installed by coating. After the insulating member 5 and the heating plate are installed, the rotating shaft is passed through the second avoidance hole 501 and the first avoidance hole 401 in sequence and then connected to the heating plate. It is understandable that the heating plate is an electronic heating product. In addition, the valve body 1 and the valve plate 3 are both made of metal. When the heating plate and the heating power supply are energized, the insulating member 5 acts as an insulating protection between the valve body 1 and the valve plate 3, which can prevent the current on the heating plate from being transmitted through the valve body 1 and causing the safety risk of leakage.

[0039] In some embodiments, the heating plate has a positive electrode 402 and a negative electrode 403, and the valve body 1 has a first mounting hole 102 and a second mounting hole 103. The heating assembly also includes a first conductive member 6, which is disposed on the first mounting hole 102 and includes a first conductive portion 601 and a first wire 602. The insulating member 5 has a third avoidance hole 502 for the first conductive portion 601 to pass through. The first conductive portion 601 is adapted to extend into the air inlet passage 101 and electrically connect to the positive electrode 402 of the heating plate. The first wire 602 is used to connect to a heating power source.

[0040] Specifically, as shown in Figures 2, 3, and 5, when electrically connecting the heating plate, the first conductive member 6 is first installed on the first mounting hole 102, and the first conductive portion 601 is passed through the third avoidance hole 502 on the insulating member 5 and then extends into the air inlet channel 101. The first conductive portion 601 is then abutted against the positive electrode 402 of the heating plate to achieve electrical connection between the first conductive portion 601 and the positive electrode 402 of the heating plate. Then, the first conductive wire 602 is electrically connected to the positive terminal of the external heating power supply to achieve quick electrical connection between the heating power supply and the positive electrode 402 of the heating plate, making the connection convenient.

[0041] Optionally, as shown in FIG. 4 , the positive electrode 402 and the negative electrode 403 of the heating plate are arranged in a staggered manner in the air intake direction of the air intake channel 101 .

[0042] In some embodiments, the heating assembly also includes a second conductive member 7, which is arranged on the second mounting hole 103. The second conductive member 7 includes a second conductive part 701 and a second wire 702. The insulating member 5 also has a fourth avoidance hole 503 for the second conductive part 701 to pass through. The second conductive part 701 is suitable for extending into the air intake channel 101 and being electrically connected to the negative electrode 403 of the heating plate. The second wire 702 is used to be connected to the heating power supply.

[0043] Specifically, as shown in Figures 2, 3, and 5, when electrically connecting the heating plate, the second conductive member 7 is first installed on the second mounting hole 103, and the second conductive portion 701 is passed through the fourth avoidance hole 503 on the insulating member 5 and then extends into the air inlet channel 101. The second conductive portion 701 is then abutted against the negative electrode 403 of the heating plate to achieve electrical connection between the second conductive portion 701 and the negative electrode 403 of the heating plate. Then, the second conductive wire 702 is electrically connected to the negative terminal of the external heating power supply to achieve quick electrical connection between the heating power supply and the negative electrode 403 of the heating plate, making the connection convenient.

[0044] In some embodiments, the first conductive member 6 includes a first mounting portion 603 disposed between the first conductive portion 601 and the first conductive wire 602. The first mounting portion 603 is threadedly connected to the first mounting hole 102. For example, the first mounting portion 603 has a first external thread, and the first mounting hole 102 has a first internal thread that matches the first external thread. By screwing the first mounting portion 603 onto the first mounting hole 102, the first mounting portion 603 is connected to the first mounting hole 102, making installation of the first conductive member 6 simple and convenient.

[0045] In some embodiments, the second conductive member 7 includes a second mounting portion 703 disposed between the second conductive portion 701 and the second conductive wire 702. The second mounting portion 703 is threadedly connected to the second mounting hole 103. For example, the second mounting portion 703 has a second external thread, and the second mounting hole 103 has a second internal thread that matches the second external thread. By screwing the second mounting portion 703 into the second mounting hole 103, the second mounting portion 703 is connected to the second mounting hole 103, making installation of the second conductive member 7 simple and convenient.

[0046] In some embodiments, the first conductive member 6 further includes a first screwing portion 604 disposed between the first conductive wire 602 and the first mounting portion 603. The first screwing portion 604 is used to screw the first mounting portion 603. For example, as shown in FIG5 , the first screwing portion 604 is in the shape of a rectangular parallelepiped, and the central axis of the first screwing portion 604 is parallel to the central axis of the first mounting portion 603. The first screwing portion 604 facilitates force application, and the first mounting portion 603 can be quickly screwed onto the first mounting hole 102 through the first screwing portion 604, thereby improving the installation efficiency of the first mounting portion 603.

[0047] In some embodiments, the second conductive member 7 further includes a second screwing portion 704 disposed between the second conductive wire 702 and the second mounting portion 703. The second screwing portion 704 is used to screw the second mounting portion 703. For example, as shown in FIG5 , the second screwing portion 704 is in the shape of a rectangular parallelepiped, and the central axis of the second screwing portion 704 is parallel to the central axis of the second mounting portion 703. The second screwing portion 704 facilitates force application, and the second mounting portion 703 can be quickly screwed onto the second mounting hole 103 through the second screwing portion 704, thereby improving the installation efficiency of the second mounting portion 703.

[0048] In some embodiments, the first wire 602 includes a first wire body 6021 and a first PIN pin 6022. One end of the first wire body 6021 is electrically connected to the first conductive portion 601, and the other end of the first wire body 6021 is electrically connected to the first PIN pin 6022. The second wire 702 includes a second wire body 7021 and a second PIN pin 7022. One end of the second wire body 7021 is electrically connected to the second conductive portion 701, and the other end of the second wire body 7021 is electrically connected to the second PIN pin 7022.

[0049] It can be understood that since the electronic throttle valve 100 is relatively far from the on-board 12V power supply, in order to facilitate installation, the on-board 12V power supply can be first led to the valve cover of the electronic throttle valve through the circuit board, and then electrically connected to the circuit board through the first PIN pin 6022 on the first wire 602 and the second PIN pin 6022 on the second wire 702 to realize the connection between the first conductive member 6 and the second conductive member 7 and the on-board 12V power supply.

[0050] The engine of the embodiment of the present application includes the electronic throttle valve 100 described in any of the above embodiments. Therefore, the engine of the embodiment of the present application can achieve normal cold start in a cold environment, giving users a better driving experience.

[0051] The vehicle of the present embodiment includes the engine described in any of the above embodiments. To implement the heating and de-icing function, it is necessary to perform a corresponding match with the vehicle control module. After the vehicle is unlocked, a corresponding program is written into the vehicle controller to connect the heating plate to the vehicle's 12V battery power source as a heating power source. The heating plate enters a heating operating state for a period of time, melting the ice between the valve body 1 and the valve plate 3 of the electronic throttle valve 100, so that the engine can operate normally when the start command is received. Therefore, the vehicle of the present embodiment can achieve normal cold start in cold environments, providing users with a better driving experience.

[0052] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0054] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0055] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0057] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present application. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present application.

Claims

1. An electronic throttle valve, comprising: a valve body having an air inlet passage; a rotating shaft, the rotating shaft being rotatably connected to the valve body and at least a portion of the rotating shaft being located in the air inlet passage; a valve plate, the valve plate being arranged in the air inlet passage and connected to the rotating shaft; A heating assembly includes a heating element, and the heating element is provided on at least one of the valve body and the valve plate.

2. The electronic throttle valve according to claim 1, wherein: The heating element is a heating plate, which is attached to the inner wall of the air inlet passage of the valve body and is arranged around the valve plate in the circumferential direction of the air inlet passage.

3. The electronic throttle valve according to claim 2, characterized in that: The heating plate is arranged around the valve plate, and a first avoidance hole for the rotating shaft to pass through is provided on the heating plate.

4. The electronic throttle valve according to claim 3, wherein: It also includes an insulating member, which is arranged between the valve body and the heating plate. The insulating member is connected to the valve body, and the heating plate is connected to the insulating member. The insulating member has a second avoidance hole for the rotating shaft to pass through.

5. The electronic throttle valve according to claim 4, wherein: The heating plate has a positive electrode and a negative electrode, and the valve body has a first mounting hole and a second mounting hole; The heating assembly further includes a first conductive member, which is provided on the first mounting hole. The first conductive member includes a first conductive portion and a first wire. The insulating member has a third avoidance hole for the first conductive portion to pass through. The first conductive portion is adapted to extend into the air inlet passage and be electrically connected to the positive electrode of the heating plate. The first wire is used to be connected to a heating power source. And / or A second conductive member is arranged on the second mounting hole, the second conductive member includes a second conductive part and a second wire, the insulating member also has a fourth avoidance hole for the second conductive part to pass through, the second conductive part is suitable for extending into the air intake channel and being electrically connected to the negative electrode of the heating plate, and the second wire is used to be connected to the heating power supply.

6. The electronic throttle valve according to claim 5, wherein: The first conductive member includes a first mounting portion provided between the first conductive portion and the first conductive wire, the first mounting portion being threadedly connected to the first mounting hole; and / or The second conductive member includes a second mounting portion provided between the second conductive portion and the second conductive wire, and the second mounting portion is threadedly connected to the second mounting hole.

7. The electronic throttle valve according to claim 6, wherein: The first conductive member further includes a first screwing portion provided between the first conductive wire and the first mounting portion, the first screwing portion being used to screw the first mounting portion; and / or The second conductive member further includes a second screwing portion provided between the second conductive wire and the second mounting portion, and the second screwing portion is used for screwing the second mounting portion.

8. The electronic throttle valve according to any one of claims 5 to 7, wherein: The first conductive wire includes a first wire body and a first PIN needle, one end of the first wire body is electrically connected to the first conductive portion, and the other end of the first wire body is electrically connected to the first PIN needle; and / or The second wire includes a second wire body and a second PIN needle. One end of the second wire body is electrically connected to the second conductive portion, and the other end of the second wire body is electrically connected to the second PIN needle.

9. An engine comprising the electronic throttle valve according to any one of claims 1 to 8.

10. A vehicle comprising the engine according to claim 9.

Images