Symmetrical double-gear-set water valve actuator structure and electronic water valve

Abstract

The utility model discloses a symmetrical type double-gear-set water valve actuator structure which comprises an upper shell and a lower shell, the upper shell and the lower shell are both of a symmetrical type structure, an installation cavity is formed after the upper shell and the lower shell are buckled, a PCBA control panel, two sets of motors and two sets of gear sets are installed in the installation cavity, and the PCBA control panel is connected with the two sets of motors. Each motor is in transmission connection with the gear set at the corresponding position, the two motors are electrically connected with the PCBA control panel, and the two motors and the two gear sets are symmetrically installed in the installation cavity. An electronic water valve is also disclosed. The integrated water valve meets the requirements of multi-mode driving, stable and reliable structure and the like of the integrated water valve in a thermal management system. A completely symmetrical structure is adopted, the structures of the double motors and the double gear sets are completely the same, the mold opening cost and the material management cost are reduced, the installation process is simple, and fault management and control are convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive thermal management technology, specifically to a symmetrical dual-gear water valve actuator structure and an electronic water valve. Background Technology

[0002] Actuators are key components in automotive thermal management systems that drive water valves, and the type of drive is crucial for multi-channel water valves.

[0003] Currently, most actuators use a motor to drive a gear set, and then a control board controls the rotation of the water valve. The above-mentioned problems have the following drawbacks:

[0004] 1) Design and installation: The design is simplistic and cannot achieve synchronous operation of multiple water valves;

[0005] 2) Cost aspect: Each set of motors requires a set of PCBA circuit boards for control, which increases manufacturing costs, maintenance costs, and accuracy.

[0006] 3) In terms of reliability and performance: The one-to-one motor gear configuration leads to an increased probability of failure and unstable performance, and the flimsy structure is prone to failure;

[0007] 4) Functional aspects: If two sets of water valves are to be used together, two different actuators are required to drive them. The spatial arrangement of the two sets of water valves and actuators is a difficult problem to solve. The circuit control and power supply need to meet the needs of the two sets of actuators, which makes it inconvenient to use and the redundant circuit is prone to failure. Utility Model Content

[0008] To address the existing technical problems, this utility model provides a symmetrical double-gear water valve actuator structure and an electronic water valve to solve the problems in the prior art.

[0009] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0010] A symmetrical double-gear water valve actuator structure includes an upper housing and a lower housing, both of which are symmetrical structures. After the upper and lower housings are fastened together, they form a mounting cavity. A PCBA control board, two sets of motors, and two sets of gears are installed in the mounting cavity. Each motor is driven by a gear set at a corresponding position. Both sets of motors are electrically connected to the PCBA control board. The two sets of motors and the two sets of gears are symmetrically installed in the mounting cavity.

[0011] Preferably, the lower shell comprises a lower shell body, a positioning metal bushing is arranged in the lower shell body, the PCBA control board is arranged on the positioning metal bushing, and then fixed by plastic hot riveting and connected by tin soldering.

[0012] Preferably, the bottom of the PCBA control board is provided with a heat-conducting glue heat dissipation structure.

[0013] Preferably, the lower shell comprises a lower shell body, a positioning metal bushing is arranged in the lower shell body, the PCBA control board is arranged on the positioning metal bushing, and then fixed by plastic hot riveting and connected by tin soldering.

[0014] The lower shell body is provided with a support structure, and the motor is supported on the support structure.

[0015] In this way, when the motor is installed, the mounting bracket on the motor passes through the mounting positioning column, and then the motor is supported on the support structure, realizing the installation and fixation of the motor.

[0016] Preferably, the lower shell body is provided with an axle end limiting structure near the axle end position of the output shaft of the motor.

[0017] In this way, the axle end limiting structure is used to limit and fix the output shaft of the motor, so that the overall structure is more stable.

[0018] Preferably, a Hall induction sensor is sleeved on the central shaft of the motor, and the Hall induction sensor is electrically connected with the PCBA control board.

[0019] In this way, one PCBA control board controls two groups of motors through the Hall induction sensor, the combined logic is more accurate and reliable in performance compared with two control boards controlling two groups of motors, and only one control system and power supply circuit are needed to meet the use of the actuator.

[0020] Preferably, the upper shell and the lower shell are respectively provided with sound-absorbing fins corresponding to the positions of the motor.

[0021] Preferably, the upper shell is symmetrically provided with a positioning latch, the lower shell is provided with a latch hole corresponding to the position of the positioning latch, and the positioning latch is inserted into the latch hole when the upper shell and the lower shell are buckled.

[0022] In this way, the accuracy of the positions of the upper shell and the lower shell during installation can be ensured, and the offset of the gear shaft is controlled to the minimum gap.

[0023] Preferably, one side of the lower shell is transitionally connected through a symmetrically arranged curved surface structure, and the lower shell is provided with a reinforcing rib plate corresponding to the position of the curved surface structure.

[0024] This design enhances the overall strength and stability of the structure.

[0025] An electronic water valve includes a valve body and two valve cores located within the valve body, and also includes the aforementioned symmetrical double gear water valve actuator structure, wherein the two sets of gears are respectively connected to the corresponding valve cores for transmission.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can meet the simultaneous drive of two motors, and one program controls the two motors to rotate to different positions. By controlling the different positions of the motors, the two valve cores driven are in different positions to meet various flow channel requirements. This utility model adopts a completely symmetrical structure, and the structures of the two motors and the two gear sets are exactly the same, which reduces the cost of mold opening and material management, and has obvious effects such as simple installation process and convenient fault control. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0028] Figure 2 for Figure 1 A schematic diagram of the exploded structure;

[0029] Figure 3 for Figure 1 Internal sectional view;

[0030] Figure 4 for Figure 1 A schematic diagram of the lower shell structure;

[0031] Figure 5 for Figure 4 Top view;

[0032] Figure 6 for Figure 1 The top view of the upper shell. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0034] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0035] As shown in the accompanying Figure 1 - the Figure 6 symmetrical double gear set water valve actuator structure shown in the drawings, including upper shell 1 and lower shell 2, upper shell 1 and lower shell 2 are symmetrical structure, upper shell 1 and lower shell 2 are buckled to form mounting cavity, PCBA control panel 5, two groups of motors 3 and two groups of gear sets 4 are installed in the mounting cavity, each motor 3 is transmissionally connected with the corresponding position gear set 4, two groups of motors 3 are electrically connected with PCBA control panel 5, two groups of motors 3 and two groups of gear sets 4 are symmetrically installed in the mounting cavity.

[0036] From Figure 2 , Figure 4 and Figure 5 It can be seen that the lower shell 2 includes a lower shell body, the lower shell body is distributed with a positioning metal bushing 51, the PCBA control panel 5 is arranged on the positioning metal bushing 51, and then fixed by plastic hot riveting, and then connected by tin welding. The bottom of the PCBA control panel 5 is distributed with a heat-conducting glue heat dissipation structure 53, which is a heat-conducting block structure made of heat-conducting glue in the embodiment. Since the double motors have serious high-power heating, the cooperation of the heat-conducting glue and the heat-conducting block can effectively reduce the temperature rise and improve the operation reliability of the product. The grounding sheet structure 52 is adopted between the motor and the PCBA control panel 5, which can effectively reduce the interference of the signal and improve the control accuracy.

[0037] The lower shell 2 includes a lower shell body, the lower shell body is distributed with a positioning metal bushing 51, the PCBA control panel 5 is arranged on the positioning metal bushing 51, and then fixed by plastic hot riveting, and then connected by tin welding. The bottom of the PCBA control panel 5 is distributed with a heat-conducting glue heat dissipation structure 53, which is a heat-conducting block structure made of heat-conducting glue in the embodiment. Since the double motors have serious high-power heating, the cooperation of the heat-conducting glue and the heat-conducting block can effectively reduce the temperature rise and improve the operation reliability of the product. The grounding sheet structure 52 is adopted between the motor and the PCBA control panel 5, which can effectively reduce the interference of the signal and improve the control accuracy.

[0038] The central shaft of the motor 3 is sleeved with a Hall induction sensor 31, which is electrically connected with the PCBA control board 5. One PCBA control board 5 controls two groups of motors through the Hall induction sensor 31. The combined logic is more accurate and reliable than two control boards controlling two groups of motors. In addition, only one control system and power supply circuit can meet the use of the actuator.

[0039] One side of the lower shell 2 is connected by a symmetrically arranged curved surface structure, and the lower shell 2 is provided with a reinforcing rib plate 23 at a position corresponding to the curved surface structure. The middle part of the reinforcing rib plate 23 is provided with a wire insertion hole 6 connected with an external terminal.

[0040] Two groups of gear set mounting holes 41 and gear set mounting shafts 42 are distributed in the lower shell body. The two groups of gear set mounting holes 41 and gear set mounting shafts 42 are symmetrically distributed. The gear set 4 is installed in the mounting cavity formed by the buckling of the upper shell 1 and the lower shell 2 through the gear set mounting hole 41 and the gear set mounting shaft 42.

[0041] In this embodiment, the gear set 4 adopts a powder metallurgy material, which effectively improves the gear matching strength and reduces the running noise of the actuator.

[0042] The upper shell 1 and the lower shell 2 are respectively provided with sound-absorbing fins 7 at positions corresponding to the motor 3.

[0043] Reference Figure 6 The upper shell 1 is symmetrically provided with a positioning latch 14, and the lower shell 2 is provided with a latch hole 24 corresponding to the position of the positioning latch 14. When the upper shell 1 and the lower shell 2 are buckled, the positioning latch 14 is inserted into the latch hole 24. The upper shell 1 is provided with a positioning column hole 17 corresponding to the position of the positioning column 34. When the upper shell 1 and the lower shell 2 are buckled, the positioning column 34 can be inserted into the positioning column hole 17. The outer periphery of the upper shell 1 is provided with a first mounting hole 11. The outer periphery of the lower shell 2 is provided with a second mounting hole 21 corresponding to the position of the first mounting hole 11. After the upper shell and the lower shell are buckled, fasteners are installed in the first mounting hole 11 and the corresponding second mounting hole 21 to connect and fix the upper shell and the lower shell. The outer periphery of the lower shell 2 is provided with a connecting lug, and the connecting lug is provided with a third connecting hole 22. The actuator is installed on the valve by installing fasteners in the third connecting hole 22.

[0044] A double-sided material groove 25 is arranged at the connection between the lower shell 2 and the upper shell 1. PA66+GF30 welding material with higher strength is used for welding, and a double-sided material groove structure is adopted, which can effectively reduce the influence of material slag. At the same time, a sealing ring and a screw fastening process are added at the connection between the lower shell 2 and the upper shell 1. On the basis of laser welding, a double redundant structure design is added to ensure the reliability of the actuator sealing.

[0045] An electronic water valve comprises a valve body and two valve cores installed in the valve body, and further comprises the symmetrical double gear set water valve actuator structure, two groups of gear sets 4 are respectively in driving connection with the corresponding valve cores.

[0046] Other not specifically described belongs to the prior art, not further detailed here.

[0047] The advantages of the present scheme are as follows:

[0048] 1. The symmetrical double gear set water valve actuator structure can meet the simultaneous driving of two motors, one program controls two motors to rotate to different positions, and through the control of different positions of the motors, the two valve cores driven can be in different required positions.

[0049] 2. One PCBA control board controls two groups of motors through the Hall inductive sensor mode, the combined logic is more accurate and reliable than two control boards controlling two groups of motors; in addition, only one control system and power supply circuit can meet the use of the actuator.

[0050] 3. The pair of upper and lower shells of the present scheme accommodate two groups of motors and two groups of gear sets after buckling, which improves the stability control of precision and makes the structure more reliable.

[0051] 3. The structure of the present scheme is completely symmetrical, the structure of the double motor and the double gear set is completely the same, which reduces the mold opening cost, material management cost, and has obvious effects such as simple installation process, convenient fault control and management.

[0052] The utility model not only solves the demand of multi-mode driving and stable and reliable structure of the integrated water valve in the thermal management system, but also meets the light weight requirement of commercial vehicles and the high performance price ratio trend of future market.

[0053] The above describes the preferred embodiment of the utility model. It should be understood that those skilled in the art can make many modifications and changes without creative labor according to the concept of the utility model. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model should be within the protection scope determined by the claims.

Claims

1. A symmetrical double-pinion set water valve actuator structure comprising an upper housing (1) and a lower housing (2), characterized in that: The upper shell (1) and the lower shell (2) are both symmetrical structures, and the upper shell (1) and the lower shell (2) are buckled to form a mounting cavity, and the mounting cavity is provided with a PCBA control panel (5), two groups of motors (3) and two groups of gear sets (4), each motor (3) is in transmission connection with the corresponding gear set (4), the two groups of motors (3) are in electrical connection with the PCBA control panel (5), and the two groups of motors (3) and the two groups of gear sets (4) are symmetrically arranged in the mounting cavity.

2. The symmetrical double-pinion set water valve actuator structure according to claim 1, characterized in that: The lower shell (2) comprises a lower shell body, and a positioning metal bushing (51) is arranged in the lower shell body, the PCBA control panel (5) is arranged on the positioning metal bushing (51), and then fixed by plastic hot riveting and connected by tin soldering.

3. The symmetrical double-pinion set water valve actuator structure according to claim 2, characterized in that: The bottom of the PCBA control panel (5) is provided with a heat-conducting glue heat dissipation structure (53).

4. The symmetrical double-pinion set water valve actuator structure according to claim 1, characterized by: The lower shell (2) comprises a lower shell body, and installation positioning columns (34) are arranged at positions on both sides of the PCBA control panel (5) in the lower shell body; the motor (3) is provided with an installation support (32), and the installation support (32) can be arranged on the installation positioning column (34). The lower shell body is provided with a support structure (35), and the motor (3) is supported on the support structure (35).

5. The symmetrical double-pinion set water valve actuator structure according to claim 4, characterized in that: The lower shell body is provided with an axle end limiting structure (36) near an axle end position of an output shaft of the motor (3).

6. The symmetrical double-pinion set water valve actuator structure according to claim 5, characterized by: A Hall induction sensor (31) is arranged on the central shaft of the motor (3) and is in electrical connection with the PCBA control panel (5).

7. The symmetrical double-pinion set water valve actuator structure according to claim 1, characterized by: The upper shell (1) and the lower shell (2) are respectively provided with sound-absorbing fins (7) corresponding to positions of the motor (3).

8. The symmetrical double-pinion set water valve actuator structure according to claim 7, characterized in that: The upper shell (1) is symmetrically provided with a positioning bolt (14), the lower shell (2) is provided with a bolt hole (24) corresponding to the position of the positioning bolt (14), and the positioning bolt (14) is inserted into the bolt hole (24) when the upper shell (1) and the lower shell (2) are buckled.

9. The symmetrical double-pinion set water valve actuator structure according to claim 1, characterized by: One side of the lower shell (2) is connected through a symmetrically arranged curved surface structure, and the lower shell (2) is provided with a reinforcing rib plate (23) corresponding to the position of the curved surface structure.

10. An electronic water valve comprising a valve body and two spools located within the valve body, characterized by: The symmetrical double-gear set water valve actuator structure also comprises the symmetrical double-gear set water valve actuator structure according to any one of claims 1-9, and the two groups of gear sets (4) are respectively in transmission connection with the corresponding valve cores.

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