Intelligent driver and engine thermal management module

Abstract

The utility model discloses an intelligent driver and an engine thermal management module adopting the intelligent driver, and belongs to the technical field of engine parts, a power transmission mechanism and a reset mechanism are accommodated in a lower accommodating cavity of the intelligent driver, and the power transmission mechanism comprises a driving motor and a gear transmission mechanism. The reset mechanism comprises a reset torsion spring and a reset screw; an output shaft of the power transmission mechanism is connected with the thermal management valve, and the torque of the reset torsion spring is larger than the maximum return resistance torque of the thermal management valve; under the condition of power failure or motor failure, the output gear of the power transmission mechanism is driven to rotate through the reset torsion spring or the reset screw, finally the heat management valve is driven to rotate and return to the large-circulation full-open state, engine cooling liquid flows according to large circulation, potential safety hazards are eliminated, and normal work of an engine is guaranteed.

Description

Technical Field

[0001] The utility model relates to an intelligent driver and an engine thermal management module adopting the intelligent driver, belonging to the technical field of engine parts. Background Art

[0002] Electric drive mechanisms (electric actuators) are used in various valve components. The drive motor of the actuator is connected to the actuator (valve ball or valve) through a speed change mechanism, driving the main shaft of the actuator to rotate. The rotation of the main shaft realizes the opening or closing of the actuator.

[0003] The engine thermal management module is a key component of the engine thermal management system. It includes a thermal management valve and an electric actuator that drives the thermal management valve. Chinese utility model patent application number 202021879275.4, entitled "A Thermal Management Valve with a Double Seal Mechanism," discloses a thermal management valve and its electric actuator. The electric actuator's motor drives the valve ball drive shaft of the thermal management valve through a gear reduction mechanism and a worm gear transmission. The worm gear transmission has a self-locking capability, which prevents the reverse impact force of the water flow from being transmitted to the motor, providing excellent protection for the motor and ensuring that the ball valve is fixed at a certain opening. However, the disadvantage of this patented technology is that when a power outage or motor failure occurs, the ball valve is locked at a certain opening (for example, a small opening, the engine coolant runs in a small cycle). At this time, the actual operating conditions may require the engine coolant to run a large cycle to improve the heat dissipation efficiency and speed up the cooling speed of the engine. However, because the ball valve is locked and difficult to return to its position, the thermal management valve cannot be opened to the maximum opening to meet the large cycle requirements, resulting in the engine being in a dangerous operating state and a great safety hazard. Utility Model Content

[0004] In view of this, the technical problem to be solved by the present invention is: to provide an intelligent driver and an engine thermal management module using the intelligent driver, so that in the event of motor failure or power outage, the driven components can easily return to their original positions, eliminating safety hazards and ensuring normal operation.

[0005] To solve the above-mentioned technical problems regarding the intelligent driver, the technical solution of the present invention is: an intelligent driver, comprising: a lower shell, a gear chamber cover, and a PCB cover that are detachably fixed together, an upper cavity formed between the gear chamber cover and the PCB cover, a PCB board being housed in the upper cavity, and a sensor being provided on the PCB board, a lower cavity formed between the lower shell and the gear chamber cover, the lower cavity accommodating a power transmission mechanism and a reset mechanism; the power transmission mechanism comprising: a drive motor, a motor shaft of the drive motor being provided with a motor gear; an intermediate gear, the intermediate gear meshing with the motor gear, the intermediate gear being larger than the motor gear, and the intermediate gear being provided on a gear shaft; an output gear, the output gear meshing with the gear shaft, the output gear being provided on an output shaft, one end of the output shaft being provided with a magnet, the magnet corresponding to the position of the sensor; the reset mechanism comprising a reset torsion spring, the reset torsion spring being sleeved on the outer circumference of the output shaft, one end of the reset torsion spring being connected to the lower shell, and the other end of the reset torsion spring being connected to the output gear.

[0006] The following are several further optimized designs of the utility model intelligent driver:

[0007] Wherein, the sensor adopts a Hall-type angle sensor.

[0008] Wherein, a magnet mounting seat is provided at one end of the output shaft, and the magnet is arranged in the magnet mounting seat.

[0009] Wherein, the other end of the output shaft is configured as a spline structure.

[0010] Among them, the output gear is designed as an incomplete gear, which includes a gear tooth portion and an arc portion. There is a transition portion between the gear tooth portion and the arc portion. The radial dimension of the arc portion is smaller than the radial dimension of the gear tooth portion. The arc portion is provided with an output gear protrusion.

[0011] Wherein, a lower shell limiting protrusion is provided in the lower shell, and the transition portion of the output gear can be abutted against the lower shell limiting protrusion.

[0012] The reset mechanism further includes a reset screw, which is used to push the output gear protrusion to drive the output gear to rotate, so that the output gear protrusion is abutted against the lower shell limiting protrusion.

[0013] Wherein, the arc portion is further provided with an output gear balancing block.

[0014] Wherein, a mounting hole and a connector connected to the upper cavity are provided on the outside of the intelligent driver.

[0015] In order to solve the above-mentioned technical problems regarding the engine thermal management module, the technical solution of the utility model is: an engine thermal management module, the engine thermal management module includes a thermal management valve and the above-mentioned intelligent driver, the output shaft of the intelligent driver is connected to the thermal management valve, the torque of the reset torsion spring of the intelligent driver is greater than the maximum return resistance torque of the thermal management valve, and the drive motor and the PCB board of the intelligent driver are electrically connected to the engine ECU respectively.

[0016] After adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0017] Since the lower cavity of the intelligent driver of the present invention accommodates a power transmission mechanism and a reset mechanism, the power transmission mechanism includes a drive motor and a gear transmission mechanism, and the reset mechanism includes a reset torsion spring; the engine thermal management module of the present invention includes a thermal management valve and the intelligent driver, and the output shaft of the intelligent driver is connected to the thermal management valve. The reset torsion spring torque of the intelligent driver is greater than the maximum return resistance torque of the thermal management valve. In the event of power failure or motor failure, the output gear is driven to rotate by the reset torsion spring, and then the thermal management valve (driven component) is driven to rotate back by the output shaft of the intelligent driver, so that the thermal management valve position is in a fully open state of the large circulation, and the engine coolant flows along the large circulation route, eliminating safety hazards and ensuring the normal operation of the engine.

[0018] Since the reset mechanism of the intelligent driver of the utility model also includes a reset screw, if the reset torsion spring fails or fails, the thermal management valve (driven component) cannot automatically return to its position. The reset screw can push the output gear to force the output gear to rotate, driving the thermal management valve to be forced to return to the fully open state of the large cycle, providing further guarantee for the normal operation of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a bottom view of the intelligent driver according to an embodiment of the present utility model;

[0020] Figure 2 This is a top view of the intelligent driver according to an embodiment of the present utility model;

[0021] Figure 3 yes Figure 2 Schematic diagram after removing the PCB cover;

[0022] Figure 4 yes Figure 3 Schematic diagram after removing the PCB board;

[0023] Figure 5 yes Figure 4 Schematic diagram after removing the gear chamber cover;

[0024] Figure 6yes Figure 5 Schematic diagram of using the reset screw to push the output gear;

[0025] Figure 7 yes Figure 6 Schematic diagram of the lower shell structure;

[0026] Figure 8 yes Figure 6 Schematic diagram of the power transmission mechanism;

[0027] Figure 9 yes Figure 8 Schematic diagram of the output gear structure in FIG;

[0028] Figure 10 This is a schematic diagram of an orientation of the intelligent driver according to an embodiment of the present utility model;

[0029] Figure 11 yes Figure 10 Middle AA cross-sectional view;

[0030] Figure 12 This is a schematic diagram of another orientation of the intelligent driver according to an embodiment of the present utility model;

[0031] Figure 13 yes Figure 12 Schematic diagram of the BB cross section;

[0032] Figure 14 This is another schematic diagram of the intelligent driver according to the embodiment of the present utility model;

[0033] Figure 15 yes Figure 14 Schematic diagram of CC cross section;

[0034] In the figure: 1. lower housing; 101. lower housing limit convex block; 102. adjustment slot; 103. bearing seat; 104. reset screw accommodating chamber; 2. output shaft; 3. mounting hole; 4. connector; 5. gear chamber cover; 6. reset screw; 7. sealing screw; 8. sealing gasket; 9. PCB cover; 10. fastening screw; 11. PCB board; 111. sensor; 12. magnet; 13. output gear; 131. gear tooth portion; 132. transition portion; 133. arc portion; 134. output gear convex block; 135. output gear balancing block; 14. intermediate gear; 15. motor gear; 16. bearing I; 17. gear shaft; 18. drive motor; 19. reset torsion spring; 20. cylindrical pin; 21. bearing II; 22. skeleton oil seal; 23. magnet mounting seat; 24. sealing ring I; 25. sealing ring II. DETAILED DESCRIPTION

[0035] It should be noted that, in the description herein, unless otherwise specified or limited, the terms "connected," "connected," and "connected" should be understood in a broad sense, and may refer to a direct connection between two elements or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms based on the specific circumstances. The orientations or positional relationships described by terms such as "upper" and "lower" are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0036] The following is a detailed non-limiting description of the embodiments of the present invention with reference to the accompanying drawings.

[0037] like Figures 1 to 15 As shown together, the intelligent driver of the embodiment of the utility model includes: a lower shell 1, a gear chamber cover 5 and a PCB cover 9 which are detachably fixed together by fastening screws 10, and a sealing ring I24 is provided between the lower shell 1 and the gear chamber cover 5. A sealing ring II25 is provided between the gear chamber cover 5 and the PCB cover 9, and an upper cavity is formed between the gear chamber cover 5 and the PCB cover 9, in which a PCB board 11 is accommodated, and a sensor 111 (preferably a Hall-type angle sensor) is provided on the PCB board 11. A lower cavity is formed between the lower shell 1 and the gear chamber cover 5, and the lower cavity accommodates a power transmission mechanism and a reset mechanism. A mounting hole 3 and a connector 4 connected to the upper cavity are provided on the outside of the intelligent driver to facilitate electrical connection / communication between the PCB board 11 and the external control unit.

[0038] like Figure 7 As shown, the lower shell 1 is provided with (preferably integrally formed): a lower shell limiting protrusion 101, a plurality of adjustment slots 102, a bearing seat 103, and a reset screw accommodating cavity 104. Figure 1 As shown, the side wall of the lower housing 1 is provided with a sealing screw 7 and a sealing gasket 8.

[0039] like Figure 8 、 Figure 11 、 Figure 13 and Figure 15As shown together, the power transmission mechanism includes: a drive motor 18, the motor shaft of the drive motor 18 is provided with a motor gear 15; an intermediate gear 14, the intermediate gear 14 is engaged with the motor gear 15, and the intermediate gear 14 is larger than the motor gear 15, the intermediate gear 14 is provided on the gear shaft 17, and the two ends of the gear shaft 17 are rotatably mounted on the lower housing 1 and the gear chamber cover 5 respectively through bearings I16; an output gear 13, the output gear 13 is engaged with the gear tooth portion of the gear shaft 17, the output gear 13 is provided on the output shaft 2 (for example, fixed by a cylindrical pin 20), and one end (upper end) of the output shaft 2 is provided with The magnet 12 corresponds to the position of the sensor 111 (for ease of installation and maintenance, a magnet mounting seat 23 is provided at the upper end of the output shaft 2, and the magnet 12 is arranged in the magnet mounting seat 23). The upper end of the output shaft 2 is rotatably mounted on the gear chamber cover 5 through the bearing I16, and the other end, that is, the output end (lower end) of the output shaft 2 is rotatably mounted on the lower shell 1 through the bearing II21. The bearing II21 is arranged in the bearing seat 103. A skeleton oil seal 22 is provided between the output end of the output shaft 2 and the lower shell 1. The output end of the output shaft 2 is optimized to be a spline structure (internal spline), which is used to be spline-connected to the input end of the driven component to transmit greater torque.

[0040] like Figure 9 As shown, the output gear 13 is optimized to be an incomplete gear, which includes a gear tooth portion 131 and an arc portion 133. There is a transition portion 132 between the gear tooth portion 131 and the arc portion 133, and the radial dimension of the arc portion 133 is smaller than the radial dimension of the gear tooth portion 131. An output gear protrusion 134 is provided on the arc portion 133, and an output gear balance block 135 is further provided.

[0041] like Figure 7 and Figure 11 As shown together, the reset mechanism includes a reset torsion spring 19, which is sleeved on the outer periphery of the output shaft 2 and located on the outside of the bearing seat 103. One end (lower end) of the reset torsion spring 19 is connected to one of the adjustment slots 102 of the lower shell 1, and the other end (upper end) of the reset torsion spring 19 is connected to the output gear 13.

[0042] like Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, the reset mechanism further includes a reset screw 6. When the reset torsion spring 19 fails or fails, the reset screw 6 can be manually operated to force reset to ensure safety.

[0043] Taking the application of the intelligent driver of the embodiment of the present invention to the engine thermal management module as an example, the working process / principle is described as follows:

[0044] The engine thermal management module includes a thermal management valve and an intelligent driver of an embodiment of the utility model. The output shaft 2 of the intelligent driver is connected to the thermal management valve, and the torque of the reset torsion spring 19 of the intelligent driver is greater than the maximum return resistance torque of the thermal management valve. The drive motor 18 and PCB board 11 of the intelligent driver are electrically connected to the engine ECU respectively.

[0045] Under normal operating conditions, the intelligent driver is turned on, and the engine ECU controls the drive motor 18 to open the thermal management valve to the required opening according to the detected engine coolant water temperature signal. The sensor 111 on the PCB board 11 senses the magnet 12 on the output shaft 2, detects the rotation angle of the output shaft, and displays it on the control panel in a timely manner.

[0046] like Figure 5 、 Figure 7 and Figure 9 As shown together, the transition portion 132 of the output gear 13 is abutted against the lower shell limit protrusion 101 of the lower shell 1. At this time, the thermal management valve is slightly opened and the engine coolant is in a small circulation state. For example, when the engine is initially started, it helps the engine to quickly rise to its normal operating temperature.

[0047] Once the engine temperature stabilizes, the coolant should switch to the large circulation route to ensure the engine operates within the appropriate temperature range. If the driver loses power or the motor fails, the reset torsion spring 19 drives the output gear 13 to rotate, and the output shaft 2 of the intelligent driver drives the thermal management valve back to its original position, returning the thermal management valve to the large circulation fully open position. The engine coolant then flows along the large circulation route, eliminating safety hazards and ensuring normal engine operation.

[0048] like Figure 5 、 Figure 6 、 Figure 7 and Figure 9 As shown, if the reset torsion spring 19 fails or fails, the thermal management valve cannot automatically return to its original position, and manual operation can be performed to force reset. Figure 5 Unscrew from the position shown in Figure 6 As shown, remove the sealing screw 7 and the sealing gasket 8, place the reset screw 6 in the position of the original sealing screw 7, screw the reset screw 6 to push the output gear protrusion 134, drive the output gear 13 to rotate and then drive the thermal management valve to rotate until the output gear protrusion 134 is abutted against the lower shell limit protrusion 101. At this time, the thermal management valve is at its maximum opening and the engine coolant is in a large circulation state, eliminating safety hazards and providing further guarantee for the normal operation of the engine.

[0049] Obviously, the intelligent driver of the embodiment of the present invention is not limited to being used as a driver for a thermal management valve in an engine thermal management system, but can also be applied to other working scenarios, for example, as a driver for pump components, etc., which is not limited here.

[0050] The above description is an example of a preferred embodiment of the present invention. The parts not described in detail are all known technologies in the field. The scope of protection of the present invention is based on the content of the claims. Any equivalent transformation based on the technical inspiration of the present invention is within the scope of protection of the present invention.

Claims

1. Intelligent drive, characterized in that, The intelligent driver comprises: a lower housing, a gear chamber cover and a PCB cover that are detachably fixedly connected together; an upper cavity is formed between the gear chamber cover and the PCB cover; a PCB is housed in the upper cavity; a sensor is provided on the PCB; a lower cavity is formed between the lower housing and the gear chamber cover; a power transmission mechanism and a reset mechanism are housed in the lower cavity; The power transmission mechanism comprises: A drive motor, wherein a motor shaft of the drive motor is provided with a motor gear; An intermediate gear, the intermediate gear meshing with the motor gear, the intermediate gear being larger than the motor gear, and the intermediate gear being disposed on the gear shaft; an output gear, the output gear being engaged with the gear shaft, the output gear being disposed on the output shaft, a magnet being disposed at one end of the output shaft, the magnet being positioned correspondingly to the sensor; The reset mechanism includes a reset torsion spring, which is sleeved on the outer circumference of the output shaft. One end of the reset torsion spring is connected to the lower housing, and the other end of the reset torsion spring is connected to the output gear.

2. The intelligent driver according to claim 1, wherein: The sensor is a Hall-type angle sensor.

3. The intelligent driver according to claim 1, wherein: A magnet mounting seat is provided at one end of the output shaft, and the magnet is arranged in the magnet mounting seat.

4. The intelligent driver according to claim 1, wherein: The other end of the output shaft is provided with a spline structure.

5. The intelligent driver according to claim 1, wherein: The output gear is an incomplete gear, which includes a gear tooth portion and an arc portion. A transition portion is provided between the gear tooth portion and the arc portion. The radial dimension of the arc portion is smaller than that of the gear tooth portion. The arc portion is provided with an output gear protrusion.

6. The intelligent driver according to claim 5, characterized in that A lower shell limiting protrusion is provided in the lower shell, and the transition portion of the output gear can be abutted against the lower shell limiting protrusion.

7. The intelligent driver according to claim 5, characterized in that The reset mechanism further includes a reset screw, which is used to push the output gear protrusion to drive the output gear to rotate, so that the output gear protrusion is abutted against the limiting protrusion of the lower shell.

8. The intelligent driver according to claim 5, wherein: The arc portion is further provided with an output gear balancing block.

9. The intelligent driver according to claim 1, wherein: The outer side of the intelligent driver is provided with a mounting hole and a connector connected with the upper cavity.

10. Engine thermal management module, characterized in that: The engine thermal management module includes a thermal management valve and the intelligent driver according to any one of claims 1 to 9, the output shaft of the intelligent driver is connected to the thermal management valve, the torque of the reset torsion spring of the intelligent driver is greater than the maximum return resistance torque of the thermal management valve, and the drive motor and the PCB board of the intelligent driver are electrically connected to the engine ECU respectively.

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