Magnetic coding motor

Abstract

The utility model relates to a magnetic coding motor which comprises a motor body. The front and rear ends of the motor main body are respectively connected with a front mounting seat and a rear mounting seat; a driving shaft of the motor main body extends out of the front mounting seat; the front mounting seat is connected with a waterproof assembly matched with the driving shaft; a through hole is formed in the rear mounting seat; the driving shaft partially extends into the through hole; a magnet is fixedly arranged at the end, located in the through hole, of the driving shaft. And a magnetic coding circuit board matched with the magnet to detect the rotation angle of the driving shaft is arranged at one end, far away from the front end cover, of the rear mounting seat. According to the utility model, the magnetic coding circuit board is integrated on the motor main body, so that the problem of poor universality is effectively solved; meanwhile, the magnetic coding circuit board is matched with the motor main body, so that the rotation detection of the magnetic coding circuit board on the driving shaft is more accurate; furthermore, the waterproof design of the magnetic coding circuit board can be conveniently realized through the matched connection with the motor main body, and the waterproof difficulty is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp field especially relates to a magnetic coding motor. BACKGROUND

[0002] The application of stage lamps is more and more extensive. From the movement mode, it is mainly divided into shaking head lamps and non-shaking head lamps. The shaking head lamps rely on the stepping motor and transmission mechanism to drive the lamp body, and the positioning of the rotating position is usually realized by the cooperation of the counting wheel piece, the optical coupling counter and the stepping motor.

[0003] Now, the waterproof shaking head lamp has been successfully developed, and many manufacturers have launched such products. In the waterproof design of the rotating shaft, the driving structure is the main waterproof difficulty. Because the motor, the counting wheel piece and the optical coupling component adopt a separate structure, it is difficult to waterproof the stepping motor and the optical coupling component. At present, plastic shell sealing is mainly adopted, and multiple waterproof measures are set at the motor output shaft, but the design requires high precision of the plastic shell.

[0004] In addition, the traditional counting wheel piece and optical coupling counter cooperation mode is not only not conducive to waterproof, but also large in size.

[0005] In the prior art, a magnetic encoder is also used to realize the detection of the rotation angle of the lamp head / arm. However, the structure of the stage lamp for installing the magnetic encoder in the prior art is relatively complex, and it is difficult to disassemble and assemble, which is not convenient for product assembly, so that the maintenance difficulty is large in the later period. The Chinese utility model patent with the patent announcement number CN218846035U discloses a stage lamp with a magnetic encoder for easy installation, which can easily modularize the installation of the magnetic encoder in the stage lamp, has a simple structure, realizes the simple disassembly and assembly of the magnetic encoder on the stage lamp, and obviously reduces the maintenance difficulty. However, in the structure, the magnetic coding module needs to be accurately linked with the rotating shaft of the stage lamp, and the installation position, the rotating body slot body and the transmission shaft plug and other components have specific specifications. This means that if the model of the stage lamp, the size of the rotating shaft or the transmission mode changes, the magnetic coding module may not be compatible, and the universality is poor. UTILITY MODEL CONTENT

[0006] In order to solve the above problems of the prior art, the utility model provides a magnetic coding motor.

[0007] In order to achieve the above purpose, the utility model adopts the main technical scheme including:

[0008] The utility model provides a magnetic encoding motor, including motor body, the front and rear ends of motor body are connected with front mounting seat and rear mounting seat respectively, the drive shaft of motor body stretches out from front mounting seat, the waterproof assembly that cooperates with drive shaft is connected on front mounting seat, the through -hole that is equipped with in rear mounting seat, drive shaft part goes into the through -hole, the end of drive shaft in through -hole is fixed with magnet, the one end of rear mounting seat away from front end cover is equipped with magnetic encoding circuit board with magnet cooperation to detect the rotation angle of drive shaft.

[0009] Further, the waterproof assembly includes a connecting seat fixedly connected to an end surface of the front mounting seat away from the rear mounting seat, the connecting seat is provided with a through hole allowing the drive shaft to pass through, the inner side of the connecting seat located in the through hole is provided with a mounting groove, and the mounting groove is provided with an oil seal sleeved on the drive shaft.

[0010] Further, the connecting seat is provided with a sealing ring along the outer periphery of an end surface away from the front mounting seat.

[0011] Further, the magnetic encoding motor is sealingly connected with the base shell through the sealing ring.

[0012] Further, the end of the drive shaft extending out of the connecting seat is connected with a drive wheel, and the drive wheel is rotationally connected with the drive shaft.

[0013] Further, the end of the drive wheel away from the connecting seat is connected with a limiting plate, and the end close to the connecting seat is connected with a limiting block, and the limiting block is fixedly connected with the drive shaft through a fixing screw.

[0014] Further, the magnetic encoding circuit board is fixedly connected with the rear mounting seat through a screw.

[0015] Further, the magnetic encoding circuit board is provided with a waterproof cover fixedly connected to the rear mounting seat.

[0016] Further, the connection between the waterproof cover and the rear mounting seat is provided with a sealing glue.

[0017] The utility model has the advantages that by integrating the magnetic encoding circuit board to the motor body, the problem of poor universality is effectively solved, and the rotation detection of the magnetic encoding circuit board on the drive shaft is more accurate due to the cooperation with the motor body. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the technical scheme of the embodiments of the present application clearer, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0019] Figure 1 is a structural section view of the present application;

[0020] Figure 2 is a section view of the present application in use;

[0021] Explanation of reference signs:

[0022] 10, motor body; 11, drive shaft; 20, front mounting seat; 30, rear mounting seat; 31, through hole; 32, magnet; 33, magnetic encoding circuit board; 34, screw; 35, waterproof cover; 40, connecting seat; 41, via hole; 42, mounting groove; 43, oil seal; 44, sealing ring; 50, drive wheel; 51, limiting plate; 52, limiting block; 53, fixing screw; 60, base shell. DETAILED DESCRIPTION

[0023] In order to make the technical scheme of the embodiments of the present application clearer, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0024] In the description of the utility model, it is necessary to explain, the term "upper", "lower", "internal", "external" "front end", "rear end", "both ends", "one end", "the other end" and so on indicate the position relation or location relation is based on the position relation or location relation shown in the drawing, only is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the term "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it is necessary to explain, unless otherwise expressly provided and limited, the term "installation", "provided with", "connection" and so on, should be broadly understood, for example "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0026] Embodiment, please refer to Figure 1 As shown in the figure:

[0027] The utility model provides a kind of magnetic encoding motor, including motor body 10;The front and rear ends of the motor body 10 are connected with front mounting seat 20 and rear mounting seat 30 respectively;Driving shaft 11 of the motor body 10 extends from the front mounting seat 20;Waterproof assembly is connected with driving shaft 11 cooperation on the front mounting seat 20, waterproof design is specially aimed at driving shaft 11 this key position, effectively solve the waterproof problem of driving structure in the waterproof design of rotating shaft, compared with traditional design, greatly improve the overall waterproof capacity, can better meet the use demand of waterproof moving head lamp in humid environment.The rear mounting seat 30 is equipped with through hole 31;Driving shaft 11 part extends into the through hole 31;Magnet 32 is fixed on the end of driving shaft 11 in through hole 31;The end of rear mounting seat 30 away from front end cover is equipped with magnetic encoding circuit board 33 with magnet 32 cooperation to detect the rotation angle of driving shaft 11.Discard the mode of traditional counting wheel and photo-coupler counter cooperation.This kind of magnetic encoding mode is conducive to realizing waterproof, avoids the disadvantages of traditional mode not conducive to waterproof;At the same time, magnetic encoding structure is relatively compact, compared with traditional structure, smaller in size, help product overall miniaturization design, more convenient to install in the lamp with limited space.Motor body 10 front and rear ends are connected with front mounting seat 20 and rear mounting seat 30 respectively, and the stability of the motor is improved by this structure design.The front and rear mounting seats 30 support and fix the motor body 10, which can reduce the shaking and displacement of the motor during operation, ensure the stable output of the motor, and ensure the smooth and accurate rotation of the lamp body of the moving head lamp.This structure also facilitates the structural modification of ordinary non-waterproof motor, so that it has the functions of waterproof and high-precision detection of rotation angle, better universality, and can be widely used in various stage lamps.

[0028] In the previous embodiment, a dedicated waterproof structure is not designed at the magnetic encoding circuit board 33, as a waterproof assembly is separately provided at the front mounting seat 20, which is usually connected with the base shell 60 and other structures, achieving waterproof at the connection. The magnetic encoding circuit board 33 is located inside the base shell 60, which is usually designed as a sealed structure, so the waterproof of the magnetic encoding circuit board 33 is ensured by the sealing and waterproof of the base shell 60.

[0029] In an embodiment, the waterproof assembly comprises a connecting seat 40 fixedly connected to the end surface of the front mounting seat 20 away from the rear mounting seat 30; the connecting seat 40 is provided with a through hole 41 allowing the driving shaft 11 to pass through; the inner side of the through hole 41 of the connecting seat 40 is provided with a mounting groove 42; and the mounting groove 42 is provided with an oil seal 43 sleeved on the driving shaft 11. This design forms a tight waterproof barrier, and the oil seal 43 can effectively prevent water from entering the motor from the gap between the driving shaft 11 and the connecting seat 40, further improving the waterproof performance. Even in a more humid environment, the risk of motor damage due to water ingress can be greatly reduced, prolonging the service life of the motor. Secondly, the mounting groove 42 can provide effective structural support for the installation of the oil seal 43, ensuring its long-term use, and the connecting seat 40 provides protection for the oil seal 43 from the outside, avoiding the direct impact of vibration or deformation on the oil seal 43 during use, greatly improving the service life of the oil seal 43.

[0030] In an embodiment, the connecting seat 40 is provided with a sealing ring 44 along the outer periphery of the end surface away from the front mounting seat 20. This design further enhances the waterproof effect, and the sealing ring 44 can form a seal at the contact point between the connecting seat 40 and the external components (such as the lamp housing), preventing water from penetrating into the motor from the gap in the outer periphery of the connecting seat 40. Together with the oil seal 43, it forms multiple waterproof lines, providing more comprehensive and reliable waterproof protection for the motor, and further improving the working stability of the motor in a humid environment.

[0031] As shown in Figure 2 In an embodiment, the magnetic encoding motor is sealed and connected to the base housing 60 through the sealing ring 44. The motor body 10 is connected to the base housing 60, and the connecting seat 40 is connected to one side wall of the base housing 60. The sealing ring 44 can effectively prevent water from entering the internal space of the base housing 60, and the oil seal 43 can effectively prevent water from entering the internal space of the motor body 10 directly from the driving shaft 11. That is, the oil seal 43 and the sealing ring 44 achieve waterproofing through double protection.

[0032] In an embodiment, the end of the driving shaft 11 extending out of the connecting seat 40 is connected to a driving wheel 50; and the driving wheel 50 is rotationally connected to the driving shaft 11. This connection ensures that the rotational power of the motor driving shaft 11 can be efficiently and stably transmitted to the driving wheel 50. When the motor is running, there is no relative rotation between the driving shaft 11 and the driving wheel 50, avoiding energy loss and slipping during power transmission, and ensuring the accuracy and reliability of power transmission. The driving wheel 50 can smoothly transmit the power of the motor to other rotating components of the head-moving lamp, making the head-moving action of the lamp more smooth and accurate, and improving the overall performance and use effect of the lamp.

[0033] In an embodiment, the driving wheel 50 is connected to a limiting plate 51 away from one end of the connecting seat 40, and is connected to a limiting block 52 near one end of the connecting seat 40; the limiting block 52 is fixedly connected with the driving shaft 11 through a fixing screw 53. The limiting plate 51 plays a physical blocking role, effectively limiting the excessive movement of the driving wheel 50 in the axial direction, avoiding the driving wheel 50 from being separated from the driving shaft 11 due to abnormal stress, and ensuring the integrity of the power transmission system. The cooperation of the limiting block 52 and the fixing screw 53 further enhances the connection stability of the driving wheel 50 and the driving shaft 11, preventing loosening between the driving wheel 50 and the driving shaft 11 during high-speed operation or long-term use of the motor, and ensuring that the power transmission remains stable. This design not only improves the stability of the motor structure, but also improves the safety of the entire lamp system operation, reducing the risk of failure caused by component loosening and displacement. Further, when the driving wheel 50 is connected with the transmission belt, the limiting on both sides can effectively ensure the stability of the position of the transmission belt.

[0034] In an embodiment, the magnetic encoding circuit board 33 is fixedly connected with the rear mounting seat 30 through a screw 34. The magnetic encoding circuit board 33 is externally provided with a waterproof cover 35 fixedly connected with the rear mounting seat 30. The waterproof cover 35 provides additional waterproof protection for the magnetic encoding circuit board 33, effectively preventing water from contacting the magnetic encoding circuit board 33, avoiding short circuit or damage of the circuit board caused by water ingress, prolonging the service life of the magnetic encoding circuit board 33, and thus ensuring the stability and reliability of the entire angle detection system, so that the motor can accurately control the rotation angle of the driving shaft 11 in a humid environment, improving the control precision and stability of the lamp head movement. Secondly, the rear mounting seat 30 provides conditions for the installation of the waterproof cover 35, facilitating the quick installation of the waterproof cover 35, and enabling the waterproof of the magnetic encoding circuit board 33 to be realized at a lower cost; and the magnetic encoding circuit board 33 is blocked on the through hole 31, thereby realizing waterproof at the through hole 31. In an embodiment, a sealing glue is arranged at the connection between the waterproof cover 35 and the rear mounting seat 30, for further increasing the waterproof effect. In this embodiment, by designing a separate waterproof structure for the magnetic encoding circuit board 33, it is not necessary to pay attention to whether the waterproof of the base shell 60 is normal, and the applicability is wider.

[0035] The above description is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent transformation or direct or indirect application in related technical fields based on the content of the present application is also included in the patent protection range of the present application.

Claims

1. A magnetic coded electric machine, characterized by: The motor comprises a motor body (10), a front mounting base (20) and a rear mounting base (30) connected to the front and rear ends of the motor body (10) respectively, a drive shaft (11) of the motor body (10) extending from the front mounting base (20), a waterproof assembly matched with the drive shaft (11) connected to the front mounting base (20), a through hole (31) provided in the rear mounting base (30), the drive shaft (11) partially extending into the through hole (31), a magnet (32) fixed to the end of the drive shaft (11) located in the through hole (31), and a magnetic encoding circuit board (33) provided at the end of the rear mounting base (30) away from the front end cover and matched with the magnet (32) to detect the rotating angle of the drive shaft (11).

2. A magnetic coded electric machine according to claim 1, characterized in that: The waterproof assembly comprises a connecting base (40) fixedly connected to the end face of the front mounting base (20) away from the rear mounting base (30), a through hole (41) allowing the drive shaft (11) to pass through provided in the connecting base (40), an installation groove (42) provided on the inner side of the connecting base (40) located in the through hole (41), and an oil seal (43) provided in the installation groove (42) and sleeved on the drive shaft (11).

3. A magnetic coded electric machine according to claim 2, characterized in that: A sealing ring (44) is provided on the end face of the connecting base (40) away from the front mounting base (20) along the outer periphery.

4. A magnetic coded electric machine according to claim 3, characterized in that: The magnetic encoding motor is sealed and connected to the base shell (60) through the sealing ring (44).

5. A magnetic coded electric machine according to claim 2, characterized in that: A drive wheel (50) is connected to the end of the drive shaft (11) extending out of the connecting base (40), and the drive wheel (50) is rotationally connected to the drive shaft (11).

6. A magnetic coded electric machine according to claim 5, characterized in that: The drive wheel (50) is connected to a limiting plate (51) at the end away from the connecting base (40) and to a limiting block (52) at the end close to the connecting base (40), and the limiting block (52) is fixedly connected to the drive shaft (11) through a fixing screw (53).

7. A magnetic coded electric machine according to claim 1, characterized in that: The magnetic encoding circuit board (33) is fixedly connected to the rear mounting base (30) through a screw (34).

8. A magnetic coded electric machine according to claim 1, characterized in that: A waterproof cover (35) is fixedly connected to the rear mounting base (30) outside the magnetic encoding circuit board (33).

9. A magnetic coded electric machine according to claim 8, characterized in that: A sealing glue is provided at the connection between the waterproof cover (35) and the rear mounting base (30).

Images