Electronic throttle sensor cooling system

Abstract

The present invention discloses an electronic throttle sensor cooling system, which relates to the field of sensor technology, including a throttle aluminum body and a throttle cover arranged at the upper end of the throttle aluminum body, and also including a heat conducting plate, a gear pin, a sensor and a cooling pipeline. The upper end of the throttle aluminum body is provided with a gear pin, and one end of the gear pin extends to the inside of the throttle aluminum body. A heat conducting plate is provided on the inner wall of the throttle cover, and a sensor is provided on the heat conducting plate. One side of the heat conducting plate is against the other end of the gear pin. A cooling pipeline is provided inside the throttle aluminum body, and one end of the gear pin is against the cooling pipeline. The electronic throttle sensor cooling system in the present invention has the characteristics of simple structure, low cost, and simple manufacturing process. It occupies less space to realize the layout of the cooling system, ensuring that the sensor can work normally in a high temperature environment, and well meets the ultra-high temperature application conditions.

Description

Technical Field

[0001] The invention relates to the technical field of sensors, and in particular to an electronic throttle sensor cooling system. Background Art

[0002] The general working environment temperature of electronic throttle is below 160℃, and the throttle angle sensor can work normally at this temperature. Therefore, in the current conventional throttle application, the angle sensor itself can meet the temperature application requirements. There is no special temperature control design for the angle sensor. The angle sensor is fixed to the plastic cover by hot riveting and has no heat dissipation structure.

[0003] The current application environment of electronic throttle is becoming more and more harsh. For the application conditions of rear intercooler, the throttle operating temperature often exceeds 180℃, while the application temperature of the electronic throttle angle sensor is generally lower than 180℃. When the throttle operating temperature exceeds the temperature upper limit of the throttle angle sensor, it will affect the life of the angle sensor and cause sensor damage. Summary of the invention

[0004] The purpose of the present invention is to provide an electronic throttle sensor cooling system to solve the above technical problems.

[0005] The technical solution adopted by the present invention is as follows:

[0006] An electronic throttle sensor cooling system includes a throttle aluminum body and a throttle cover arranged at the upper end of the throttle aluminum body, and also includes a heat conductive sheet, a gear pin, a sensor and a cooling pipeline. The upper end of the throttle aluminum body is provided with the gear pin, and one end of the gear pin extends to the interior of the throttle aluminum body. The heat conductive sheet is provided on the inner wall of the throttle cover, and the sensor is provided on the heat conductive sheet. One side of the heat conductive sheet is abutted against the other end of the gear pin. The cooling pipeline is provided inside the throttle aluminum body, and one end of the gear pin is abutted against the cooling pipeline.

[0007] Preferably, the other side of the heat conductive sheet is overmolded on the inner wall of the throttle cover.

[0008] Preferably, a thermally conductive pad is further included, wherein the thermally conductive pad is provided on one side of the thermally conductive sheet, and the thermally conductive sheet abuts against the other end of the gear pin through the thermally conductive pad.

[0009] Preferably, it further comprises a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is connected to one end of the cooling pipeline, and the water outlet pipe is connected to the other end of the cooling pipeline.

[0010] Preferably, a mounting groove is provided on the side wall of the throttle cover, and the heat conducting plate is fixed in the mounting groove.

[0011] As a further preference, it further includes a positioning sleeve, which is arranged on the side wall of the throttle cover, the positioning sleeve is communicated with the mounting groove, and the positioning sleeve is directly opposite to the thermal pad.

[0012] As a further preference, a middle portion of the heat conducting sheet is exposed outside the mounting groove, and the sensor is disposed in the middle portion of the heat conducting sheet.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] The electronic throttle sensor cooling system in the present invention has the characteristics of simple structure, low cost and simple manufacturing process. It occupies less space to arrange the cooling system, ensuring that the sensor can work normally in a high temperature environment, and well meets the ultra-high temperature application conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded schematic diagram of the electronic throttle sensor cooling system of the present invention;

[0016] Figure 2 It is a schematic diagram of the internal structure of the throttle cover in the present invention;

[0017] Figure 3 It is a schematic diagram of the internal structure of the throttle aluminum body in the present invention.

[0018] In the figure: 1. Aluminum body of throttle body; 2. Throttle cover; 3. Heat conducting plate; 4. Gear pin; 5. Sensor; 6. Cooling pipeline; 7. Heat conducting pad; 8. Water inlet pipe; 9. Water outlet pipe; 10. Positioning sleeve. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0020] In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as limiting the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Figure 1 is an exploded schematic diagram of the electronic throttle sensor cooling system of the present invention; Figure 2 It is a schematic diagram of the internal structure of the throttle cover in the present invention; Figure 3 This is a schematic diagram of the internal structure of the throttle aluminum body of the present invention, see Figures 1 to 3 As shown, a preferred embodiment is shown, which shows an electronic throttle sensor 5 cooling system, including a throttle aluminum body 1 and a throttle cover 2 arranged at the upper end of the throttle aluminum body 1, and also includes a heat conductive sheet 3, a gear pin 4, a sensor 5 and a cooling pipeline 6. The upper end of the throttle aluminum body 1 is provided with a gear pin 4, and one end of the gear pin 4 extends to the inside of the throttle aluminum body 1. A heat conductive sheet 3 is provided on the inner wall of the throttle cover 2, and a sensor 5 is provided on the heat conductive sheet 3. One side of the heat conductive sheet 3 is against the other end of the gear pin 4. A cooling pipeline 6 is provided inside the throttle aluminum body 1, and one end of the gear pin 4 is against the cooling pipeline 6. In this embodiment, as Figure 1As shown, the throttle cover 2 is detachably connected to the throttle aluminum body 1, and the throttle aluminum body 1 is made of metal, and the heat conducting sheet 3 is a metal sheet, which is used to conduct the heat of the sensor 5 to the heat conducting sheet 3, and then from the heat conducting sheet 3 to the gear pin 4, and then from the gear pin 4 to the throttle aluminum body 1. By continuously pouring cooling water into the cooling pipeline 6, heat exchange is performed with the heat conducted by the gear pin 4, thereby achieving the cooling effect of the sensor 5. The electronic throttle sensor 5 cooling system of the present invention, through thermal simulation analysis, can effectively control the temperature of the throttle angle sensor 5 below 180°C under an ambient temperature of 200°C and an intake air temperature of 210°C, so that the electronic throttle can meet ultra-high temperature application conditions without affecting the service life and accuracy of the throttle angle sensor 5.

[0023] Further, as a preferred embodiment, the other side of the heat conductive sheet 3 is overmolded on the inner wall of the throttle cover 2 .

[0024] Further, as a preferred embodiment, it further includes a thermal pad 7, a thermal pad 7 is provided on one side of the thermal conductive sheet 3, and the thermal conductive sheet 3 abuts against the other end of the gear pin 4 through the thermal pad 7. Figure 1 and Figure 2 As shown, the heat conductive pad 7 is in contact with the heat conductive sheet 3, and can effectively transfer the heat of the heat conductive sheet 3 to the gear pin 4. The heat conductive pad 7 in this embodiment is made of soft rubber material, and after the throttle cover 2 is installed on the throttle aluminum body 1, the heat conductive sheet 3 and the gear pin 4 squeeze the heat conductive pad 7, so that the three are in close contact to ensure the heat transfer effect.

[0025] Further, as a preferred embodiment, it further includes a water inlet pipe 8 and a water outlet pipe 9, the water inlet pipe 8 is connected to one end of the cooling pipeline 6, and the water outlet pipe 9 is connected to the other end of the cooling pipeline 6. In this embodiment, the water inlet pipe 8 is connected to the water inlet of the cooling pipeline 6, the water outlet pipe 9 is connected to the water outlet of the cooling pipeline 6, and cooling water is continuously pumped into the cooling pipeline 6 from the water inlet pipe 8, and the cooling water after heat exchange is discharged from the water outlet.

[0026] Further, as a preferred embodiment, a mounting groove is provided on the side wall of the throttle cover 2, and the heat conducting sheet 3 is fixed in the mounting groove. Figure 2 As shown, a mounting groove is provided in the upper inner wall of the throttle cover 2, and one side of the mounting groove is high and the other side is low, and both sides of the mounting groove are located on the inner wall of the throttle cover 2, one side of the heat conductive sheet 3 is located inside the other side of the mounting groove, and the other side of the heat conductive sheet 3 is located inside one side of the mounting groove. The sensor 5 is provided in the middle of the heat conductive sheet 3, and the sensor 5 is coated on the heat conductive sheet 3.

[0027] Furthermore, as a preferred embodiment, it further comprises a positioning sleeve 10, which is arranged on the side wall of the throttle cover 2, the positioning sleeve 10 is connected to the mounting groove, and the positioning sleeve 10 is directly opposite to the thermal pad 7. Figure 2 As shown, the positioning sleeve 10 is directly opposite to the heat conductive pad 7, and the upper end of the gear pin 4 is inserted into the positioning sleeve 10 and abuts against the heat conductive pad 7. In this embodiment, the positioning sleeve 10 is connected to the throttle cover 2 in an integral manner.

[0028] Further, as a preferred implementation, the middle portion of the heat conducting sheet 3 is exposed outside the mounting groove, and the sensor 5 is disposed in the middle portion of the heat conducting sheet 3 .

[0029] In this embodiment, by connecting the sensor 5 to the heat conducting sheet 3, the heat conducting sheet 3 is connected to the gear pin 4 through the heat conducting pad 7, and the gear pin 4 is cooled by the cooling pipe 6 next to it, at an ambient temperature of 200°C and an intake air temperature of 210°C, the whole system can effectively maintain the temperature of the throttle sensor 5 below 180°C. The electronic throttle sensor 5 cooling system of the present invention has the characteristics of simple structure, low cost, and simple manufacturing process. It occupies less space to realize the layout of the cooling system, ensuring that the sensor 5 can work normally in a high temperature environment, and well meets the ultra-high temperature application conditions.

[0030] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic throttle sensor cooling system, comprising a throttle aluminum body and a throttle cover arranged on the upper end of the throttle aluminum body, characterized in that: It also includes a heat conductive sheet, a gear pin, a sensor and a cooling pipeline. The gear pin is provided at the upper end of the throttle aluminum body, and one end of the gear pin extends to the interior of the throttle aluminum body. The heat conductive sheet is provided on the inner wall of the throttle cover, and the sensor is provided on the heat conductive sheet. One side of the heat conductive sheet is abutted against the other end of the gear pin. The cooling pipeline is provided inside the throttle aluminum body, and one end of the gear pin is abutted against the cooling pipeline. The other side of the heat conductive sheet is overmolded on the inner wall of the throttle cover. It also includes a thermal pad. The thermal conductive pad is provided on one side of the heat conductive sheet, and the heat conductive sheet is abutted against the other end of the gear pin through the thermal conductive pad.

2. The electronic throttle sensor cooling system according to claim 1, characterized in that: It also includes a water inlet pipe and a water outlet pipe, wherein the water inlet pipe is connected to one end of the cooling pipeline, and the water outlet pipe is connected to the other end of the cooling pipeline.

3. The electronic throttle sensor cooling system according to claim 1, characterized in that: A mounting groove is provided on the side wall of the throttle cover, and the heat conducting sheet is fixed in the mounting groove.

4. The electronic throttle sensor cooling system as claimed in claim 3, characterized in that: It also includes a positioning sleeve, which is arranged on the side wall of the throttle cover, the positioning sleeve is communicated with the mounting groove, and the positioning sleeve is directly opposite to the thermal pad.

5. The electronic throttle sensor cooling system as claimed in claim 3, characterized in that: The middle part of the heat conducting sheet is exposed outside the mounting groove, and the sensor is arranged in the middle part of the heat conducting sheet.

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