A new electronic water valve dual motor actuator

Abstract

The utility model relates to the technical field of automobile manufacturing, in particular to a novel electronic water valve double motor executor, its through double motor drive double executor's framework, realize two sets of cooling circuit's complete decoupling control in heat management system, completely eliminate traditional single motor linkage structure's mechanical transmission error, double motor design forms hardware level redundancy, when single motor or executor failure, spare unit can take over the control right of at least one loop, ensure system continuous operation, and through integrated valve body integrated design, still keep with traditional single valve body equivalent volume under double motor executor configuration, reduce development cost, including lower casing, still including two groups of execution mechanism, electric control mechanism and upper casing, two groups of execution mechanism all install on lower casing and drive water valve switch, electric control mechanism installs on two groups of execution mechanism and accurate control rotates, upper casing installs on lower casing and cooperates lower casing and protects.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile manufacturing, and in particular to a novel dual-motor actuator for electronic water valves. Background Technology

[0002] The thermal management system of new energy vehicles needs to simultaneously regulate the temperature of multiple components such as battery pack, drive motor, electronic control unit, and air conditioning system, and the requirements of different components for temperature range and response speed vary significantly.

[0003] Existing dual-motor actuators for electronic water valves, such as the automotive electronic water valve actuator disclosed in utility model patent application number 202420099315.5, mainly consist of a lower housing and an upper housing. The mounting cavity of the lower housing houses a gear set, a motor, and a PCB board. The upper housing is connected to the open end of the lower housing. The lower end face of the upper housing has an upper positioning part, and the lower housing has a lower positioning part. The upper positioning part and the lower positioning part cooperate with each other. In use, corresponding positioning parts are set on the upper housing and the lower housing respectively to ensure the positional accuracy when the upper and lower housings are connected, thereby improving the fitting accuracy of each gear shaft of the gear set, and ultimately ensuring that the output shaft of the actuator can more precisely control the rotation angle of the valve core.

[0004] However, most existing electronic water valve actuators are single-motor, single-actuator structures. They drive multiple valve cores in linkage through a single motor and rely on complex mechanical structures to switch flow paths, resulting in low control accuracy, response delay, and poor redundancy. While the solenoid valve array solution uses multiple independent solenoid valves in parallel to control different loops, which improves control flexibility, it suffers from problems such as large size, high energy consumption, and high cost. The hybrid drive solution, which combines stepper motors and shape memory alloy drives, improves response speed, but faces defects such as poor compatibility and short lifespan. Utility Model Content

[0005] To address the aforementioned technical issues, this utility model provides an architecture that drives two actuators with dual motors, achieving complete decoupling control of two cooling circuits in the thermal management system. This completely eliminates the mechanical transmission errors of traditional single-motor linkage structures. The dual-motor design creates hardware-level redundancy, allowing the backup unit to take over control of at least one circuit in case of a single motor or actuator failure, ensuring continuous system operation. Furthermore, through an integrated valve body design, the dual-motor actuator configuration maintains a size comparable to that of a traditional single valve body, reducing development costs. This is a novel electronic water valve dual-motor actuator.

[0006] This utility model discloses a novel dual-motor actuator for electronic water valves, comprising a lower housing, two sets of actuators, an electrical control mechanism, and an upper housing. Both sets of actuators are mounted on the lower housing and drive the water valve switch. The electrical control mechanism is mounted on both sets of actuators and precisely controls their rotation. The upper housing is mounted on the lower housing and provides protection in conjunction with the lower housing. The electrical control mechanism precisely controls the rotation angle of the actuators, facilitating adjustment of the flow channel opening. By setting two sets of actuators, the opening of the two flow channels is controlled separately, ensuring continuous system operation.

[0007] Preferably, the lower housing includes a lower housing body, two sets of limiting ribs, two sets of gear shafts, multiple sets of pins, and a primary block. The lower housing body has two sets of motor shaft limiting grooves. Both sets of limiting ribs are installed on the lower housing body, both sets of gear shafts are installed on the lower housing body, multiple sets of pins are installed on the lower housing body, and the primary block is installed on the lower housing body. The actuator is limited by setting two sets of limiting ribs and two sets of gear shafts, and the multiple sets of pins are fixed by the primary block.

[0008] Preferably, it also includes a lower housing body, multiple sets of pins, and a single-piece injection molded integrally; the sealing performance of the lower housing body is ensured by integral injection molding.

[0009] Preferably, the actuator includes two sets of motors, two sets of worm gears, and two sets of gears. Both sets of motors are mounted on the lower housing body, and the motor shafts are respectively located within the two motor shaft limiting grooves on the lower housing body. The output ends of the two sets of motors are connected to the input ends of the two sets of worm gears, and the output ends of the two sets of worm gears are connected to the input ends of the two sets of gears. The motor shaft limiting grooves, in conjunction with two sets of limiting ribs, limit the movement of the two sets of motors, effectively preventing them from shifting during operation. The two sets of motors are connected to multiple sets of pins. The electrical control mechanism controls the motors through these pins. The motors drive the gear sets to rotate via the worm gears, controlling the valve core switching and changing the coolant flow area.

[0010] Preferably, the electronic control mechanism includes a PCBA board and two sets of potentiometers. The PCBA board is mounted on the lower housing body, and the two sets of potentiometers are mounted on the PCBA board and connected to the output terminals of two sets of gears respectively. The two sets of gears drive the two sets of potentiometers to rotate, thereby precisely controlling the rotation through the voltage changes of the two sets of potentiometers.

[0011] Preferably, the upper housing includes an upper housing body and two sets of actuator sealing rings. The upper housing body is mounted on the lower housing body, and both sets of actuator sealing rings are mounted on the upper housing body. Two sets of gears press down on the two sets of actuator sealing rings to ensure the sealing effect. The upper housing body and the lower housing body are laser welded together to achieve the sealing effect.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the rotation angle of the actuator is precisely controlled by the electronic control mechanism, which facilitates the adjustment of the flow channel opening. By setting two sets of actuators, the opening of the two sets of flow channels is controlled respectively, ensuring the continuous operation of the system. Attached Figure Description

[0013] Figure 1 This is a cross-sectional axonometric structural schematic diagram of this utility model; Figure 2 This is a cross-sectional isometric structural diagram of the lower housing and the actuator of this utility model; Figure 3 This is a cross-sectional isometric structural diagram of the electrical control mechanism of this utility model; Figure 4 This is a partially enlarged cross-sectional isometric structural schematic diagram of the upper shell of this utility model; Figure 5 This is a schematic diagram of the isometric structure of this utility model.

[0014] The following markings are used in the attached diagram: 01, lower housing; 11, lower housing body; 12, limiting rib; 13, gear shaft; 14, PIN pin; 15, primary block; 02, actuator; 21, motor; 22, worm gear; 23, gear set; 03, electrical control mechanism; 31, PCBA board; 32, potentiometer; 04, upper housing; 41, upper housing body; 42, actuator sealing ring. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0016] Example 1 This utility model discloses a novel dual-motor actuator for an electronic water valve, comprising a lower housing 01; it also includes two sets of actuators 02, an electrical control mechanism 03, and an upper housing 04. Both sets of actuators 02 are mounted on the lower housing 01 and drive the water valve switch. The electrical control mechanism 03 is mounted on both sets of actuators 02 and precisely controls their rotation. The upper housing 04 is mounted on the lower housing 01 and cooperates with the lower housing 01 for protection. The lower housing 01 includes a lower housing body 11, two sets of limiting ribs 12, two sets of gear shafts 13, multiple sets of pins 14, and a primary block 1. 5. The lower housing body 11 has two sets of motor shaft limiting grooves, two sets of limiting ribs 12 are installed on the lower housing body 11, two sets of gear shafts 13 are installed on the lower housing body 11, multiple sets of pins 14 are installed on the lower housing body 11, and a primary block 15 is installed on the lower housing body 11; it also includes the lower housing body 11, multiple sets of pins 14, and primary block 15 integrally injection molded; the actuator 02 includes two sets of motors 21, two sets of worm gears 22, and two sets of gear sets 23, with the two motors 21 installed on the lower housing body 11. 1. The motor shafts are respectively located in the two sets of motor shaft limiting grooves of the lower housing body 11. The output ends of the two sets of motors 21 are respectively connected to the input ends of the two sets of worm gears 22, and the output ends of the two sets of worm gears 22 are respectively connected to the input ends of the two sets of gear sets 23. The electronic control mechanism 03 includes a PCBA board 31 and two sets of potentiometers 32. The PCBA board 31 is mounted on the lower housing body 11, and the two sets of potentiometers 32 are both mounted on the PCBA board 31 and respectively connected to the output ends of the two sets of gear sets 23. When it is working, firstly, the motor shaft is limited. The slot, together with two sets of limiting ribs 12, limits the two sets of motors 21, effectively preventing the motors from moving during operation. The two sets of motors 21 are connected to multiple sets of pins 14. The multiple sets of pins 14 are fixed by a primary block 15. The PCBA board 31 controls the motors 21 through the multiple sets of pins 14. The motors 21 drive the gear set 23 to rotate through the worm gear 22, controlling the valve core switching and changing the coolant flow area. The two sets of gears 23 drive the two sets of potentiometers 32 to rotate, thereby precisely controlling the rotation through the voltage change of the two sets of potentiometers 32.

[0017] Example 2 like Figures 1 to 5As shown, this utility model discloses a novel dual-motor actuator for an electronic water valve, based on embodiment 1. The upper housing 04 includes an upper housing body 41 and two sets of actuator sealing rings 42. The upper housing body 41 is mounted on the lower housing body 11, and both sets of actuator sealing rings 42 are mounted on the upper housing body 41. During operation, firstly, the motor shaft limiting groove, in conjunction with two sets of limiting ribs 12, limits the two sets of motors 21, effectively preventing the motors from moving during operation. The two sets of motors 21 are then connected to multiple sets of PIN pins 14, utilizing a primary block 15. Multiple sets of pins 14 are fixed. PCBA board 31 controls motor 21 through multiple sets of pins 14. Motor 21 drives gear set 23 to rotate through worm gear 22, controlling valve core switching and changing coolant flow area. Two sets of gear sets 23 drive two sets of potentiometers 32 to rotate, thereby precisely controlling rotation through voltage changes of the two sets of potentiometers 32. Two sets of gear sets 23 press against two sets of actuator sealing rings 42 to ensure sealing effect. The upper housing body 41 and lower housing body 11 are laser welded together and fixed to achieve sealing effect.

[0018] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel dual-motor actuator for an electronic water valve, comprising a lower housing (01); characterized in that, It also includes two sets of actuators (02), an electrical control mechanism (03) and an upper housing (04). The two sets of actuators (02) are installed on the lower housing (01) and drive the water valve switch. The electrical control mechanism (03) is installed on the two sets of actuators (02) and precisely controls the rotation. The upper housing (04) is installed on the lower housing (01) and works with the lower housing (01) for protection.

2. The novel dual-motor actuator for an electronic water valve as described in claim 1, characterized in that, The lower housing (01) includes a lower housing body (11), two sets of limiting ribs (12), two sets of gear shafts (13), multiple sets of PIN pins (14), and a primary block (15). The lower housing body (11) has two sets of motor shaft limiting grooves. Both sets of limiting ribs (12) are installed on the lower housing body (11), both sets of gear shafts (13) are installed on the lower housing body (11), multiple sets of PIN pins (14) are installed on the lower housing body (11), and the primary block (15) is installed on the lower housing body (11).

3. The novel dual-motor actuator for an electronic water valve as described in claim 2, characterized in that, It also includes the lower housing body (11), multiple sets of PIN pins (14) and a primary block (15) integrally injection molded.

4. The novel dual-motor actuator for an electronic water valve as described in claim 2, characterized in that, The actuator (02) includes two sets of motors (21), two sets of worm gears (22) and two sets of gears (23). Both sets of motors (21) are mounted on the lower housing body (11), and the motor shafts are respectively located in the motor shaft limiting grooves of the two sets of motors on the lower housing body (11). The output ends of the two sets of motors (21) are respectively connected to the input ends of the two sets of worm gears (22), and the output ends of the two sets of worm gears (22) are respectively connected to the input ends of the two sets of gears (23).

5. A novel dual-motor actuator for an electronic water valve as described in claim 2, characterized in that, The electrical control mechanism (03) includes a PCBA board (31) and two sets of potentiometers (32). The PCBA board (31) is mounted on the lower housing body (11), and the two sets of potentiometers (32) are mounted on the PCBA board (31) and connected to the output terminals of the two sets of gears (23) respectively.

6. A novel dual-motor actuator for an electronic water valve as described in claim 2, characterized in that, The upper housing (04) includes an upper housing body (41) and two sets of actuator seals (42). The upper housing body (41) is mounted on the lower housing body (11), and both sets of actuator seals (42) are mounted on the upper housing body (41).

Images