Water valve actuating motor

Abstract

This utility model discloses a water valve actuator motor, including a housing, a micro motor, a gear transmission mechanism, and an output shaft. The micro motor is horizontally arranged inside the housing. The axial direction of any gear in the gear transmission mechanism is perpendicular to the axial direction of the micro motor. The output shaft is connected to the micro motor via the gear transmission mechanism. Based on the technical solution disclosed in this utility model, the height of the housing can be reduced, the utilization rate of the internal space of the housing can be improved, the overall structure of the motor can be made more compact, the overall volume of the motor can be reduced, and its applicability can be greatly improved.

Description

Technical Field

[0001] This utility model relates to an electric motor, and more particularly to 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 horizontally arranged inside the housing;

[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 bottom of the housing is provided with a mounting groove for embedding the micro motor; a metal mounting plate may also be detachably provided inside the housing, the metal mounting plate being located on the upper side of the micro motor and pressing and fixing the micro motor in the mounting groove.

[0013] In some embodiments, the gear transmission mechanism includes:

[0014] A driving worm gear is fixed coaxially with the motor shaft of the micro motor.

[0015] An output gear, coaxially fixed to the output shaft, is used to drive the output shaft to rotate; and

[0016] Multiple transmission gears are rotatably disposed inside the housing and are sequentially meshed to drive the drive worm gear and the output gear.

[0017] 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.

[0018] In some embodiments, the transmission gear includes a driven gear and a driving gear, wherein the driven gear and the driving gear are coaxially fixed.

[0019] In some embodiments, the transmission gears are provided in two, three, or four configurations.

[0020] In some embodiments, the height of the output gear within the housing is greater than the height of the micromotor.

[0021] In some embodiments, the output end of the output shaft is located at the center of the corresponding side of the housing.

[0022] In some embodiments, the housing is provided with a plurality of protrusions, and the plurality of protrusions are respectively formed into a plurality of prefabricated mounting grooves on the inner side of the housing.

[0023] In some embodiments, the housing is provided with a waterproof seal at its connection with the output end of the output shaft.

[0024] Compared with the prior art, the water valve actuator motor provided by this utility model is designed by horizontally mounting the micro motor 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. In this way, the height of the housing is reduced, the idle space inside the housing is reduced, the utilization rate of the internal space of the housing is improved, the overall structure of the motor is more compact, the overall volume of the motor is reduced, and its adaptability to various valve bodies is indirectly improved, thereby greatly improving its applicability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the water valve actuator motor in one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the shell in one embodiment of the present invention;

[0027] Figure 3 This is an exploded schematic diagram of the water valve actuator motor in one embodiment of this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Base; 111. Mounting slot; 112. Protrusion; 113. Prefabricated mounting slot; 12. Top cover; 121. Pin; 2. Micro motor; 3. Output shaft; 4. Gear transmission mechanism; 41. Drive worm; 42. Output gear; 43. First transmission gear; 431. First transmission shaft; 44. Second transmission gear; 441. Second transmission shaft; 45. Third transmission gear; 451. Third transmission shaft; 5. Metal mounting plate; 6. Waterproof seal; 7. PCB circuit board; 8. Brush. Detailed Implementation

[0029] 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.

[0030] To solve the above-mentioned technical problems, this utility model provides a water valve actuator motor, which not only makes the overall structure of the motor more compact, thereby reducing the overall size of the motor, but also allows the motor to be adapted to various valve bodies, greatly improving its applicability.

[0031] 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 4. The gear transmission mechanism 4 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 4.

[0032] 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.

[0033] To accommodate the aforementioned micro motor 2, a mounting groove 111 is provided on the bottom inner side of the base 11, allowing the micro motor 2 to be perfectly embedded in the mounting groove 111. When the micro motor 2 is fully embedded in the mounting groove 111, the micro motor 2 is horizontally mounted inside the base 11.

[0034] Meanwhile, a metal mounting plate 5 is also provided inside the housing 1. The metal mounting plate 5 can be set on the upper side of the micro motor 2, and it can be detachably connected to the housing 1 by screws. When the metal mounting plate 5 is completely fixed by screws, the metal mounting plate 5 is located on the upper side of the micro motor 2, and can press and fix the micro motor 2 in the aforementioned mounting groove 111 to ensure the stability of the installation of the micro motor 2.

[0035] like Figure 2 As shown, when the metal mounting plate 5 is fixed to the inside of the housing 1 with screws, the connection between the metal mounting plate 5 and the housing 1 will occupy part of the internal space of the housing 1. Considering that this space occupation is not conducive to the compact design of the internal structure of the housing 1, multiple protrusions 112 can be provided on the housing 1 at corresponding positions. The multiple protrusions 112 will form multiple prefabricated mounting grooves 113 inside the housing 1, so that the connection between the metal mounting plate 5 and the housing 1 can be embedded in the above-mentioned multiple prefabricated mounting grooves 113, avoiding affecting the arrangement of other components inside the housing 1.

[0036] It is understandable that the aforementioned "horizontal installation" 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. By horizontally mounting the micro motor 2 inside the housing 1, the height of the housing 1 is reduced, and the lateral space of the housing 1 is fully utilized, thereby helping to reduce the size of the water valve actuator motor.

[0037] The prefabricated mounting slots 113 described above are not limited to addressing the space occupied at the connection between the metal mounting plate 5 and the housing 1; they can be installed at any location on the inner side of the housing 1 where space occupancy may be an issue, thereby reducing space loss on the inner side of the housing 1. Furthermore, the number of prefabricated mounting slots 113 can be flexibly set as needed, without any specific limitation.

[0038] It should be noted that, in some other embodiments, an elastic pad (not shown in the figure) may be provided at the bottom of the mounting groove 111 and / or on the side of the metal mounting plate 5 near the micro motor 2, so that the micro motor 2 can abut against the housing 1 and / or the metal mounting plate 5 through the elastic pad. By providing the elastic pad, the impact of vibration on the micro motor 2 can be reduced, thereby improving the vibration resistance of the water valve actuator motor.

[0039] Please see Figure 2-3 When the micro motor 2 is installed horizontally, the output shaft 3 can be installed vertically inside the housing 1 and can be rotatably connected to the housing 1 through 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, that is, the output shaft 3 can be set along the height direction of the housing 1 inside the housing 1.

[0040] Based on this, the actual installation position of the output shaft 3 inside the housing 1 can be flexibly adjusted. For example, the output shaft 3 can be set in the middle of the inside of the housing 1, so that the output end of the output shaft 3 (i.e. the end that outputs power) is located in the middle of the corresponding side of the housing 1.

[0041] Specifically, the output shaft 3 can be vertically mounted between the base 11 and the upper cover 12. The output end of the output shaft 3 passes vertically through the upper cover 12 and can be used to output power. Furthermore, the position where the output shaft 3 passes through the upper cover 12 can be set at the center of the upper cover 12, or it can be set at a position close to the center of the upper cover 12, that is, the output shaft 3 is set in the middle of the inner side of the housing 1.

[0042] Since the output end of the output shaft 3 passes through the top cover 12, in order to prevent water from entering, 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, and there is no specific limitation on it.

[0043] 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.

[0044] By placing the output shaft 3 in the middle of the inner side of the housing 1, it not only helps to adapt to valve bodies with different installation directions and meet the driving requirements of various valve bodies, thus achieving structural symmetry and versatility optimization, but also reduces the risk of off-center load on the motor of the water valve and improves the efficiency and stability of force transmission.

[0045] Please see Figure 2-3 The aforementioned gear transmission mechanism 4 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 42, and multiple transmission gears. The drive worm 41 is connected to the motor shaft of the micro motor 2, the output gear 42 is mounted on the output shaft 3, and the multiple transmission gears are used to connect the drive worm 41 and the output gear 42.

[0046] Specifically, the aforementioned drive worm gear 41 can be coaxially fixed with the motor shaft of the micro motor 2. The output gear 42 can be coaxially fixed on the output shaft 3 via a key connection, enabling it to drive the output shaft 3 to rotate synchronously. Furthermore, to further improve the utilization of the internal space of the housing 1, the mounting position of the output gear 42 on the output shaft 3 can be adjusted so that the mounting height of the output gear 42 inside the housing 1 is greater than the height of the micro motor 2, thus allowing the output gear 42 to be mounted above the micro motor 2, thereby fully utilizing the space in the height direction of the housing 1.

[0047] Based on this, the aforementioned multiple transmission gears may include a first transmission gear 43, a second transmission gear 44, and a third transmission gear 45. The first transmission gear 43 may mesh with the drive worm gear 41, the second transmission gear 44 may mesh with the first transmission gear 43, and the third transmission gear 45 may mesh with the second transmission gear 44 and the output gear 42 respectively.

[0048] Thus, the first transmission gear 43, the second transmission gear 44, and the third transmission gear 45 can mesh and transmit power in sequence, thereby enabling the micro motor 2 to drive the output gear 42 to rotate in sequence through the drive worm 41, the first transmission gear 43, the second transmission gear 44, and the third transmission gear 45.

[0049] Specifically, taking the first transmission gear 43 as an example, the first transmission gear 43 includes a driven gear and a driving gear. The driven gear and the driving gear can be integrally formed or separately set. When the driven gear and the driving gear are separately set, the driven gear and the driving gear can be coaxially fixed together to form a whole. In this way, the first transmission gear 43 can mesh with the aforementioned drive worm gear 41 through the driven gear, and mesh with the second transmission gear 44 through the driving gear.

[0050] It is understood that the second transmission gear 44 and the third transmission gear 45 mentioned above can adopt the same structural form as the first transmission gear 43. Therefore, the specific structure of the second transmission gear 44 and the third transmission gear 45 will not be described in detail here.

[0051] Based on the aforementioned structure of multiple transmission gears, a first transmission shaft 431, a second transmission shaft 441, and a third transmission shaft 451 are respectively provided on the inner side of the housing 1 to install each transmission gear. All three transmission shafts (431, 441, and 451) can be rotatably connected to the housing 1, allowing them to rotate freely within the housing 1. Furthermore, the first transmission shaft 431, second transmission shaft 441, and third transmission shaft 451 are arranged in parallel, and the axial directions of all three transmission shafts are perpendicular to the axial direction of the micro-motor 2.

[0052] It should be noted that by setting the first transmission shaft 431, the second transmission shaft 441 and the third transmission shaft 451, in conjunction with the aforementioned gear transmission mechanism 4, multi-stage gear transmission can be achieved; on this basis, by reasonably setting the transmission ratio of each gear pair, the torque can be increased.

[0053] Since the axial direction of each drive shaft is perpendicular to the axial direction of the micro motor 2, 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 and helping to improve the compactness of the internal structure of the housing 1.

[0054] Based on this, by reasonably adjusting the positions of the first drive shaft 431, the second drive shaft 441 and the third drive shaft 451 in the lateral direction, the transmission direction can be flexibly adjusted indirectly, so that even in a narrow space, the driving force of the micro motor 2 can be transmitted to the output gear 42 located in the middle of the housing 1.

[0055] Furthermore, the fact that there are three transmission gears in this embodiment (i.e., the first transmission gear 43, the second transmission gear 44, and the third transmission gear 45) does not mean that there can only be three transmission gears. For example, in other embodiments, there can also be two, four, or more transmission gears. As long as the transmission ratio and transmission stability are guaranteed, there is no specific limitation on this.

[0056] Please see Figure 3 In this embodiment, a PCB circuit board 7 is also provided on the inner side of the housing 1. The PCB circuit board 7 can be inserted and engaged with the protruding ribs (not shown in the figure) on the inner side of the base 11 to achieve positioning. A plurality of pins 121 are also formed on the upper cover 12. The PCB circuit board 7 can be connected to the plurality of pins 121 by soldering, thereby achieving effective fixation of the PCB circuit board 7.

[0057] It should be noted that after the PCB circuit board 7 is installed and fixed, the PCB circuit board 7 can be located on the lower side of the output gear 42, thereby making multi-level use of the space inside the housing 1 in the height direction.

[0058] Based on this, a detection component for determining the rotation angle of the output gear 42 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 7 near the output gear 42 and a spring brush 8 fixedly mounted on the output gear 42. The end of the spring brush 8 away from the output gear 42 is in contact with the carbon film.

[0059] Thus, the brush 8 can rotate with the output gear 42 and slide on the carbon film. The sliding of the brush 8 on the carbon film will change the resistance value between the brush 8 and the two ends of the carbon film. With the help of the voltage divider circuit on the PCB circuit board 7, an electrical signal proportional to the position can be output. The rotation angle of the output gear 42 can be calculated through this electrical signal, so that the rotation angle information of the output gear 42 can be output in real time on the matching control system.

[0060] 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:

[0061] By mounting the micro motor 2 horizontally at the bottom of the housing 1, the height of the housing 1 can be reduced, and the space in the lateral direction inside the housing 1 can be fully utilized.

[0062] 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 cooperating with the aforementioned gear transmission mechanism 4, 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 42 and each transmission gear in the lateral direction can be flexibly adjusted according to the size of the space inside the housing 1, thereby further improving the space utilization rate.

[0063] Furthermore, based on the above settings, the output gear 42 can be adjusted to the middle position of the housing 1, which not only helps to adapt to valve bodies with different installation directions and meet the driving requirements of various valve bodies, achieving structural symmetry and versatility optimization, but also reduces the risk of off-center load on the motor of the water valve actuator and improves force transmission efficiency and stability.

[0064] 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.

[0065] 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.

[0066] 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 actuating motor characterized by, The utility model relates to a micro motor with gear transmission mechanism, comprising: A shell; A micro motor horizontally arranged inside the shell; A gear transmission mechanism, any gear of which is arranged perpendicularly to the axial direction of the micro motor; and An output shaft drivingly connected to the micro motor through the gear transmission mechanism.

2. The water valve actuating motor of claim 1, wherein, The bottom of the shell is provided with a mounting groove for embedding the micro motor; and a metal mounting plate is detachably arranged inside the shell, which is located above the micro motor and presses and fixes the micro motor in the mounting groove.

3. The water valve actuating motor of claim 1, wherein, The gear transmission mechanism comprises: A driving worm fixed coaxially with the motor shaft of the micro motor; An output gear coaxially fixed on the output shaft for driving the output shaft to rotate; and A plurality of transmission gears rotationally arranged inside the shell and sequentially meshed and connected for drivingly connecting the driving worm and the output gear.

4. The water valve actuating motor of claim 3, wherein, A PCB circuit board is fixedly arranged inside the shell, and a carbon film is arranged on the PCB circuit board; and a spring brush for cooperating with the carbon film is fixedly arranged on the output gear.

5. The water valve actuation motor of claim 3, wherein, The transmission gear comprises a driven gear and a driving gear, which are coaxially fixed.

6. The water valve actuating motor of claim 3, wherein, The transmission gear comprises two, three or four gears.

7. The water valve actuating motor of claim 3, wherein, The height of the output gear arranged inside the shell is greater than the height of the micro motor.

8. The water valve actuating motor according to any one of claims 1-7, characterized in that, The output end of the output shaft is located at the middle position of the corresponding side of the shell.

9. The water valve actuating motor according to any one of claims 1-7, characterized in that, A plurality of protrusions are arranged on the shell, and a plurality of preformed mounting grooves are formed on the inner side of the shell.

10. The water valve actuating motor according to any one of claims 1-7, characterized in that, A waterproof sealing member is arranged at the connection between the shell and the output end of the output shaft.

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