Water valve actuator motor

Abstract

The utility model discloses a water valve execution motor, including casing, micromotor, gear drive mechanism and output shaft, the micromotor is in the casing inside opposite first direction X is oblique setting, the axial direction of any gear of gear drive mechanism is perpendicular to the axial direction of micromotor and sets up, the output shaft is through gear drive mechanism with micromotor drive connection. Based on the technical scheme disclosed by the utility model, can make full use of the inside space of casing, make the motor internal structure more compact, help to reduce the overall volume of motor, indirectly improve its adaptability to a variety of valve body.

Description

Technical Field

[0001] This utility model relates to an electric motor, specifically a water valve actuator motor. Background Technology

[0002] A water valve actuator motor is a core device that uses electricity to drive the valve to open or close or adjust its opening degree. It is widely used in industrial automation fluid control systems and also has related applications in automobiles.

[0003] In related technologies, the water valve actuator motor typically includes a housing, inside which a micro motor and an output shaft are installed. The micro motor and the output shaft are usually connected by a gear transmission mechanism, which enables the micro motor to drive the output shaft to rotate and complete the corresponding execution action.

[0004] However, in many similar water valve actuator motors, the unreasonable arrangement of the micro motor and gear transmission mechanism inside the housing leads to low utilization of the internal space, resulting in a generally large size of the entire water valve actuator motor. This makes it difficult to adapt to various valve bodies, and its applicability is relatively limited, which urgently needs to be improved. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a water valve actuator motor to solve the technical problems of existing water valve actuator motors being too large in size, difficult to adapt to various valve bodies, and having limited applicability.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a water valve actuator motor, comprising:

[0008] case;

[0009] A micro motor, wherein the micro motor is obliquely arranged inside the housing relative to the first direction X;

[0010] A gear transmission mechanism, wherein the axial direction of any gear in the gear transmission mechanism is perpendicular to the axial direction of the micromotor; and

[0011] The output shaft is connected to the micro motor via the gear transmission mechanism.

[0012] In some embodiments, the gear transmission mechanism includes:

[0013] A driving worm gear is fixed coaxially with the motor shaft of the micro motor.

[0014] An output gear, coaxially fixed to the output shaft, is used to drive the output shaft to rotate; and

[0015] Multiple transmission gears are rotatably disposed inside the housing and are sequentially meshed to drive the drive worm gear and the output gear.

[0016] In some embodiments, the plurality of transmission gears include:

[0017] A first transmission gear is rotatably disposed inside the housing and meshes with the drive worm gear; and

[0018] The second transmission gear is rotatably disposed inside the housing and meshes with the first transmission gear and the output gear respectively;

[0019] The first transmission gear, the second transmission gear, and the output gear are arranged in a triangular configuration.

[0020] In some embodiments, each of the plurality of transmission gears includes a driven gear and a driving gear of different diameters, wherein the driven gear and the driving gear are coaxially fixed.

[0021] In some embodiments, the driven wheels and driving wheels on the plurality of transmission gears are arranged alternately in the height direction of the housing.

[0022] In some embodiments, a PCB circuit board is fixedly disposed inside the housing, and a carbon film is disposed on the PCB circuit board; a spring brush for detecting the rotation angle in conjunction with the carbon film is fixedly disposed on the output gear.

[0023] In some embodiments, a plurality of positioning ribs are fixed on the inner side of the housing, the plurality of positioning ribs surround and position the PCB circuit board; a plurality of pins are also fixed on the bottom of the inner side of the housing, the plurality of pins are fixedly connected to the PCB circuit board.

[0024] In some embodiments, a plurality of limiting ribs are fixedly provided at the bottom of the inner side of the housing and surround the micro motor. Metal fixing plates for fixing the micro motor can also be detachably provided on the plurality of limiting ribs.

[0025] In some embodiments, the housing is provided with a waterproof seal at its connection with the output end of the output shaft.

[0026] In some embodiments, the micro motor is arranged horizontally inside the housing.

[0027] Compared with the prior art, the water valve actuator motor provided by this utility model can make full use of the internal space of the housing when the height and lateral length of the housing are insufficient. This is achieved by setting the micro motor obliquely inside the housing and setting the axial direction of each gear on the gear transmission mechanism perpendicular to the axial direction of the micro motor. This makes the internal structure of the motor more compact, helps to reduce the overall size of the motor, and indirectly improves its adaptability to various valve bodies. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the water valve actuator motor in one embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the shell in one embodiment of the present invention;

[0030] Figure 3 This is an exploded schematic diagram of the water valve actuator motor in one embodiment of this utility model.

[0031] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Base; 111. Limiting rib; 12. Top cover; 2. Micro motor; 3. Output shaft; 4. Gear drive mechanism; 41. Drive worm; 42. First transmission gear; 421. First transmission shaft; 43. Second transmission gear; 431. Second transmission shaft; 44. Output gear; 5. Metal fixing plate; 6. Waterproof seal; 7. Driven wheel; 8. Driven wheel; 9. PCB circuit board; 10. Brush. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] To solve the above-mentioned technical problems, this utility model provides a water valve actuator motor, which not only makes the internal structure of the motor more compact and helps to reduce the overall size of the motor, but also indirectly improves its adaptability to various valve bodies.

[0034] Please see Figure 1-2 The present invention provides a water valve actuator motor, including a housing 1. Inside the housing 1, there is a micro motor 2, an output shaft 3 and a gear transmission mechanism. The gear transmission mechanism can drive the micro motor 2 and the output shaft 3 to rotate, so that the micro motor 2 can drive the output shaft 3 to rotate through the gear transmission mechanism.

[0035] Specifically, the housing 1 may include a base 11 and a top cover 12. The top cover 12 is disposed on top of the base 11 and can be detachably connected to the base 11 by screws.

[0036] To accommodate the aforementioned micro motor 2, a plurality of limiting ribs 111 are fixedly provided on the bottom inner side of the base 11. These limiting ribs 111 can form a designated space for installing the micro motor 2. When the micro motor 2 is embedded in this designated space, the multiple limiting ribs 111 are precisely arranged around the periphery of the micro motor 2 and can limit the movement of the micro motor 2.

[0037] Meanwhile, multiple limiting ribs 111 are also provided with metal fixing plates 5. The metal fixing plates 5 can be set on the upper side of the micro motor 2 and can be detachably connected to the multiple limiting ribs 111 by screws. When the metal fixing plates 5 are fixed on the multiple limiting ribs 111, the metal fixing plates 5 can press and fix the micro motor 2 from top to bottom to ensure the stability of the installation of the micro motor 2.

[0038] It is understood that when the micro motor 2 is correctly installed between the aforementioned multiple limiting ribs 111, the micro motor 2 is horizontally positioned inside the housing 1. Furthermore, to fully utilize the internal space of the housing 1, the axial direction of the micro motor 2 can be obliquely positioned relative to the first direction X. The first direction X can be set as the length direction of the housing 1.

[0039] It should be noted that the "horizontal arrangement" mentioned above refers to the micro motor 2 being horizontally mounted inside the housing 1, with the axis of the micro motor 2 perpendicular to the height direction of the housing 1. Furthermore, by obliquely mounting the micro motor 2 inside the housing 1, it is possible to address situations where there is insufficient installation space inside the housing 1, thereby reducing the space occupied by the micro motor 2 in the horizontal direction inside the housing 1.

[0040] Therefore, by placing the micro motor 2 horizontally inside the housing 1 and installing the micro motor 2 at an angle, it is helpful to reduce the height of the housing 1 and make full use of the space in the lateral direction of the housing 1, thereby helping to reduce the size of the water valve actuator motor.

[0041] Please see Figure 2-3 The aforementioned output shaft 3 can be vertically installed inside the housing 1 and can be rotatably connected to the housing 1 via bearings, allowing the output shaft 3 to rotate flexibly inside the housing 1. In this case, the output shaft 3 is perpendicular to the axis of the micro motor 2, meaning that the output shaft 3 can be positioned along the height direction of the housing 1 inside the housing 1.

[0042] Based on this, the actual installation position of the output shaft 3 inside the housing 1 can be flexibly adjusted according to the internal spatial distribution of the housing 1. For example, the output shaft 3 can be distributed at intervals with the aforementioned micro motor 2 along the first direction X. The output shaft 3 can be vertically mounted between the base 11 and the upper cover 12, and the output end of the output shaft 3 extends vertically through the upper cover 12 for power output.

[0043] To prevent water ingress, a waterproof seal 6 can be provided at the connection between the output end of the output shaft 3 and the housing 1 (i.e., the position where the output shaft 3 passes through the top cover 12). The waterproof seal 6 can be any component with waterproof sealing effect, such as a waterproof sealing ring, without specific limitations.

[0044] It is understandable that by setting the output shaft 3 perpendicular to the axis of the micro motor 2, it helps to make full use of the space inside the housing 1 in the lateral direction and achieve a compact design.

[0045] Please see Figure 2-3 The aforementioned gear transmission mechanism is mainly used for the transmission connection between the micro motor 2 and the output shaft 3. It includes a drive worm 41, an output gear 44, and multiple transmission gears. The drive worm 41 is connected to the motor shaft of the micro motor 2, the output gear 44 is mounted on the output shaft 3, and the multiple transmission gears are used to connect the drive worm 41 and the output gear 44.

[0046] Specifically, the aforementioned drive worm gear 41 can be coaxially fixed with the motor shaft of the micro motor 2. The output gear 44 can be coaxially fixed on the output shaft 3 via a key connection, enabling it to drive the output shaft 3 to rotate synchronously.

[0047] Based on this, the aforementioned multiple transmission gears may include a first transmission gear 42 and a second transmission gear 43. The first transmission gear 42 can be meshed with the drive worm 41, and the second transmission gear 43 can be meshed with both the first transmission gear 42 and the output gear 44. In this way, the micro motor 2 can drive the output gear 44 to rotate sequentially through the drive worm 41, the first transmission gear 42, and the second transmission gear 43.

[0048] Specifically, taking the first transmission gear 42 as an example, the first transmission gear 42 includes a driven gear 7 and a driving gear 8. The driven gear 7 and the driving gear 8 can be integrally formed or separately arranged. When the driven gear 7 and the driving gear 8 are separately arranged, the driven gear 7 and the driving gear 8 can be coaxially fixed together to form a whole. In this way, the first transmission gear 42 can mesh with the aforementioned drive worm gear 41 through the driven gear 7, and can mesh with the second transmission gear 43 through the driving gear 8.

[0049] It is understood that the second transmission gear 43 mentioned above can adopt the same structural form as the first transmission gear 42, so the specific structure of the second transmission gear 43 will not be described in detail here.

[0050] Based on this, for the installation of each transmission gear, a first transmission shaft 421 and a second transmission shaft 431 are respectively provided on the inner side of the housing 1. Both the first transmission shaft 421 and the second transmission shaft 431 can be rotatably connected to the housing 1, allowing them to rotate flexibly inside the housing 1. At the same time, the first transmission shaft 421 and the second transmission shaft 431 are arranged in parallel, and their axial directions are both perpendicular to the axial direction of the micro motor 2.

[0051] It should be noted that the first transmission gear 42, the second transmission gear 43, and the output gear 44 are respectively installed inside the housing 1 via the first transmission shaft 421, the second transmission shaft 431, and the output shaft 3. In this case, the first transmission gear 42, the second transmission gear 43, and the output gear 44 can be arranged in a triangular distribution inside the housing 1. This effectively saves internal space in the housing 1, especially when the size of the housing 1 is small, greatly improving the utilization rate of the internal space.

[0052] Meanwhile, since both transmission gears adopt a structure combining driven gear 7 and driving gear 8, the specific parameters of driven gear 7 and driving gear 8 can be controlled so that their diameters (which can refer to any of the parameters of pitch circle diameter, addendum circle diameter, and dedendum circle diameter) are different, thereby enabling the driven gear 7 and driving gear 8 on the first transmission gear 42 and the second transmission gear 43 to form an alternating structure in the height direction of the housing 1.

[0053] like Figure 2 As shown, on the first transmission gear 42, the driven wheel 7 is located below the driving wheel 8, and the diameter of the driven wheel 7 is larger than the diameter of the driving wheel 8; at this time, the driven wheel 7 is meshed with the aforementioned driving worm gear 41, while the driving wheel 8 is meshed with the second transmission gear 43.

[0054] On the second transmission gear 43, the driven wheel 7 is located above the driving wheel 8, and the diameter of the driven wheel 7 is larger than the diameter of the driving wheel 8. At this time, the driven wheel 7 of the second transmission gear 43 is meshed with the driving wheel 8 on the first transmission gear 42, and the driving wheel 8 of the second transmission gear 43 is meshed with the output gear 44.

[0055] Based on this, the height of the output gear 44 within the housing 1 can be lower than the height of the driven wheel 7 on the second transmission gear 43. Thus, the driven wheel 7 and driving wheel 8 on the two transmission gears, along with the output gear 44, will form an alternating arrangement in the height direction of the housing 1, thereby avoiding excessive motor height due to multi-stage gear transmission and helping to reduce the size of the water valve actuator motor.

[0056] With the above settings, the gear transmission mechanism can achieve multi-stage gear transmission; on this basis, by reasonably setting the transmission ratio of each gear pair, the torque can be increased.

[0057] Since the axial direction of each transmission shaft is perpendicular to the axial direction of the micro motor 2, and the two transmission gears and the output gear 44 are triangularly distributed, the space inside the housing 1 can be fully utilized in the lateral direction, thereby improving the utilization rate of the internal space of the housing 1, which helps to improve the compactness of the internal structure of the housing 1 and reduce the volume of the water valve actuator motor.

[0058] Please see Figure 2-3 In this embodiment, a PCB circuit board 9 is also provided on the inner side of the housing 1. The PCB circuit board 9 can cooperate with multiple positioning ribs (not shown in the figure) protruding on the inner side of the base 11. That is, the multiple positioning ribs can be arranged around the periphery of the PCB circuit board 9 and position the PCB circuit board 9. Multiple pins are also formed on the bottom of the inner side of the housing 1. The PCB circuit board 9 can be connected to the multiple pins by soldering, thereby achieving full fixation of the PCB circuit board 9.

[0059] It should be noted that after the PCB circuit board 9 is installed and fixed, the PCB circuit board 9 can be located at the bottom of the inner side of the housing 1, that is, it can be located below the output gear 44, thereby making multi-level use of the space inside the housing 1 in the height direction.

[0060] Based on this, a detection component for determining the rotation angle of the output gear 44 is also provided inside the housing 1. The detection component includes a carbon film (not shown in the figure) coated on the side of the PCB circuit board 9 near the output gear 44 and a spring brush 10 fixed on the output gear 44. The end of the spring brush 10 away from the output gear 44 is in contact with the carbon film.

[0061] Thus, the brush 10 can rotate with the output gear 44 and slide on the carbon film. The sliding of the brush 10 on the carbon film will change the resistance value between the brush 10 and the two contacts at both ends of the carbon film. With the help of the voltage divider circuit on the PCB circuit board 9, an electrical signal proportional to the position can be output. The rotation angle of the output gear 44 can be calculated through this electrical signal, so that the rotation angle information of the output gear 44 can be output in real time on the matching control system.

[0062] To better understand this utility model, the following is combined with... Figure 1-3 The technical solution of this utility model is described in detail below:

[0063] By installing the micro motor 2 horizontally at the bottom of the housing 1 and obliquely relative to the first direction X, the height of the housing 1 can be reduced, adapting to installation environments where the housing 1 is not tall enough, and making full use of the internal space of the housing 1.

[0064] Based on this, by vertically mounting the output shaft 3 and each transmission shaft inside the housing 1 so that they are perpendicular to the axis of the micro motor 2, and in conjunction with the aforementioned gear transmission mechanism, the transmission connection between the micro motor 2 and the output shaft 3 is realized. While ensuring the transmission ratio, the position of the output gear 44 and the two transmission gears in the lateral direction can be flexibly adjusted according to the size of the space inside the housing 1, so that the output gear 44 and the two transmission gears are distributed in a triangle, further improving the space utilization rate.

[0065] The above configuration makes full use of the internal space of housing 1, making the internal structure of the motor more compact, which helps to reduce the overall size of the motor and indirectly improves its adaptability to various valve bodies.

[0066] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0067] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0068] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A water valve actuator motor, characterized in that, include: case; A micro motor, wherein the micro motor is obliquely arranged inside the housing relative to the length direction of the housing; A gear transmission mechanism, wherein the axial direction of any gear in the gear transmission mechanism is perpendicular to the axial direction of the micromotor; and The output shaft is connected to the micro motor via the gear transmission mechanism.

2. The water valve actuator motor according to claim 1, characterized in that, The gear transmission mechanism includes: A driving worm gear is fixed coaxially with the motor shaft of the micro motor. An output gear, coaxially fixed to the output shaft, is used to drive the output shaft to rotate; and Multiple transmission gears are rotatably disposed inside the housing and are sequentially meshed to drive the drive worm gear and the output gear.

3. The water valve actuator motor according to claim 2, characterized in that, The plurality of transmission gears include: A first transmission gear is rotatably disposed inside the housing and meshes with the drive worm gear; and The second transmission gear is rotatably disposed inside the housing and meshes with the first transmission gear and the output gear respectively; The first transmission gear, the second transmission gear, and the output gear are arranged in a triangular configuration.

4. The water valve actuator motor according to claim 2, characterized in that, Each of the multiple transmission gears includes driven gears and driving gears of different diameters, and the driven gears and the driving gears are coaxially fixed.

5. The water valve actuator motor according to claim 4, characterized in that, The driven and driving gears on the plurality of transmission gears are arranged alternately in the height direction of the housing.

6. The water valve actuator motor according to claim 2, characterized in that, A PCB circuit board is fixedly installed inside the housing, and a carbon film is disposed on the PCB circuit board; a spring brush for cooperating with the carbon film is fixedly installed on the output gear.

7. The water valve actuator motor according to claim 6, characterized in that, Multiple positioning ribs are fixed inside the housing, and the multiple positioning ribs surround and position the PCB circuit board; multiple pins are also fixed at the bottom inside the housing, and the multiple pins are fixedly connected to the PCB circuit board.

8. The water valve actuator motor according to claim 1, characterized in that, The bottom of the inner side of the housing is fixedly provided with a plurality of limiting ribs surrounding the micro motor, and metal fixing plates for fixing the micro motor can also be detachably provided on the plurality of limiting ribs.

9. The water valve actuator motor according to claim 1, characterized in that, The housing is provided with a waterproof seal at the connection between it and the output end of the output shaft.

10. The water valve actuator motor according to any one of claims 1-9, characterized in that, The micro motor is horizontally arranged inside the housing.

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