A single blade motor assembly

Abstract

The utility model relates to a single scrape motor assembly, including motor body, the motor body is provided with the installation shell, one side of installation shell is equipped with the touch -actuated element that can control motor body positive -negative rotation, the motor body includes the pivot, rotationally connected with the control wheel in the installation shell, the control wheel is connected through setting the rotation axis between installation shell, the control wheel is through the rotation axle sleeve and located one side of installation shell, the rotation axis end part is equipped with the fixing part, the fixing part and control wheel between through the clamping piece and carry out the clamping, the fixing part and the inside wall of installation shell abut, the control wheel is through the rotation axle sleeve and located one side of installation shell, the fixing part of rotation axis end part setting and the inside wall of installation shell abut, form the axial location to the rotation axis, limit the rotation axis along its axial direction and shift.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a single scraper motor assembly. Background Technology

[0002] The single-wiper motor assembly is a power device that converts electrical energy into mechanical energy to drive a single wiper arm to reciprocate. It mainly consists of an electromagnetic drive unit, a reduction transmission module, and a reset and control device. Its working principle is to rotate the rotor through electromagnetic induction, and after deceleration, the rotational motion is converted into angular reciprocating oscillation by a motion conversion mechanism. The reset device ensures that the wiper arm returns to its original position after power failure. It is widely used in automotive single-arm wiper systems, industrial equipment observation window cleaning, and special equipment porthole wiping, and features a compact structure, flexible control, and adaptability to different cleaning needs.

[0003] CN217824600U discloses an insulated wiper motor, including a motor and a gearbox housing. The gearbox housing contains a worm gear linked to the motor, which is mounted on a worm gear shaft. The surface of the worm gear has an annular boss that connects to the worm gear shaft. A reset plate is embedded in the worm gear; the reset plate is annular, with its inner ring abutting against the annular boss. The inner ring of the reset plate has three locking feet that engage with the worm gear. The outer circumference of the annular boss has a first groove that matches the locking feet. During operation, the worm gear of this motor will generate axial vibration, causing operating noise and vibration; it will also compromise transmission accuracy, resulting in unstable wiper arm swing angles and abnormal wiping strokes. Therefore, this technology still has room for improvement. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a single scraper motor assembly to address the shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a single scraper motor assembly, comprising a motor body, wherein the motor body is provided with a mounting housing, and a trigger capable of controlling the forward and reverse rotation of the motor body is provided on one side of the mounting housing. The motor body includes a rotating shaft, and a control wheel is rotatably connected inside the mounting housing. The control wheel is connected to the mounting housing via a rotating shaft, the control wheel is sleeved on one side of the mounting housing via the rotating shaft, a fixing member is provided at the end of the rotating shaft, the fixing member is engaged with the control wheel via a snap-fit ​​member, and the fixing member abuts against the inner wall of the mounting housing.

[0006] Using the above technical solution, the control wheel is sleeved on one side of the mounting housing via a rotating shaft. A fixing member at the end of the rotating shaft abuts against the inner wall of the mounting housing, providing axial restraint and limiting the shaft's movement along its axis. Simultaneously, the fixing member and the control wheel are engaged by a snap-fit ​​mechanism, fixing the control wheel relative to the rotating shaft and preventing relative axial displacement, thus ensuring the stability of the control wheel's axial position during rotation. Through the sleeved fit between the rotating shaft and the mounting housing, the axial abutment and restraint of the rotating shaft by the fixing member, and the snap-fit ​​mechanism securing the control wheel to the fixing member, axial vibration of the control wheel during operation can be reduced, thereby lowering operating noise and vibration caused by axial vibration. After the axial position of the control wheel is stabilized, the transmission precision between it and the motor shaft and subsequent transmission components is improved, preventing transmission stroke fluctuations caused by axial displacement of the control wheel, resulting in a more stable wiper arm swing angle and improving abnormal wiping stroke. Furthermore, the relative fixation of the control wheel and the rotating shaft reduces axial friction and wear between components, extending the service life of the motor assembly.

[0007] The aforementioned single scraper motor assembly can be further configured such that: the rotating shaft is placed inside the mounting housing, the rotating shaft is linked to the control wheel to enable the rotating shaft to drive the control wheel to rotate, an output shaft is rotatably provided on one side of the mounting housing, the output shaft is provided with a connecting arm inside the mounting housing, and the other end of the connecting arm is connected to the control wheel to enable the rotating shaft to drive the output shaft to rotate through the connecting arm.

[0008] With the above technical solution, the rotating shaft is placed inside the mounting housing and linked to the control wheel. This linkage connection allows the rotational motion of the rotating shaft to be directly transmitted to the control wheel, ensuring that the two rotate synchronously, reducing relative displacement caused by power transmission gaps or looseness, and avoiding additional axial movement of the control wheel during rotation. When the rotating shaft drives the control wheel to rotate, the control wheel pushes or pulls the output shaft through the connecting arm, causing the output shaft to rotate around its own axis.

[0009] The aforementioned single scraper motor assembly can be further configured such that: the connecting arm includes a first connecting member rotatably connected to the output shaft, a second connecting member is rotatably connected to one end of the first connecting member away from the output shaft, the other end of the second connecting member is rotatably connected to the control wheel, and the second connecting member is positioned between the snap-fit ​​member and the control wheel.

[0010] Using the above technical solution, the connecting arm is rotatably connected to the output shaft via the first connecting member and rotatably connected to the first connecting member and the control wheel via the second connecting member, forming a multi-segment rotatable connection structure. Each rotatable connection part allows relative rotation between the first connecting member and the second connecting member, and between the second connecting member and the control wheel. This can buffer the axial displacement caused by axial vibration of the control wheel, avoid directly and rigidly transmitting the axial movement of the control wheel to the output shaft, and reduce the vibration of the output shaft caused by uneven axial force. The second connecting member is placed between the snap-fit ​​member and the control wheel. The snap-fit ​​spring can axially limit the movement of the second connecting member along the axial direction of the control wheel, ensuring the stability of the connection position between the second connecting member and the control wheel.

[0011] The aforementioned single scraper motor assembly can be further configured such that: an embedded groove for mounting a trigger is provided in the mounting housing; the trigger includes a housing and three trigger feet; a commutator is provided at one end of the control wheel facing the trigger; a protrusion is provided on the inner ring of the commutator; a groove is provided on the outer ring of the commutator; and the trigger feet abut against the commutator.

[0012] Using the above technical solution, the actuator is installed through the embedded groove in the mounting housing. The housing can fix the actuator as a whole, restrict its displacement in the mounting housing, and ensure that the contact position between the three actuator feet and the commutator is stable. The forward and reverse rotation control of the motor is realized by changing the circuit connection state between the actuator feet. At the same time, the three actuator feet ensure that the wiper motor can achieve the reset function when it is not grounded.

[0013] The aforementioned single scraper motor assembly can be further configured such that: the motor body has a fixed ramp on the side facing the mounting housing, the mounting housing is fixedly installed on the top of the fixed ramp, a fixed platform is formed between the motor body and the fixed ramp, and the fixed platform has a wire hole that communicates with the motor body.

[0014] Using the above technical solution, the fixed ramp on the side of the motor body facing the mounting housing provides an inclined mounting reference surface for the mounting housing. The mounting housing is fixedly installed on the top of the fixed ramp. The ramp structure makes the connection position between the mounting housing and the motor body relatively fixed. The wire hole opened on the fixed platform is connected to the inside of the motor body. The internal cables of the power supply motor are led out through the hole. At the same time, since the wire hole is installed on the outer plane of the motor body, the automated installation of the wire harness can be realized, which greatly improves the production capacity.

[0015] The beneficial effects of this utility model are as follows: the control wheel is sleeved on one side of the mounting housing via a rotating shaft, and the fixing member at the end of the rotating shaft abuts against the inner wall of the mounting housing, thereby axially limiting the rotating shaft and restricting its movement along its axial direction. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is a diagram showing the internal structure of the mounting housing of this utility model; Figure 3 This is an exploded view of the structure of this utility model; Label annotations: 1-Motor body, 2-Mounting housing, 3-Actuator, 4-Shaft, 5-Control wheel, 6-Fixing component, 7-Snap-fit ​​component, 8-Output shaft, 9-Connecting arm, 10-First connector, 11-Second connector, 12-Inset groove, 13-Housing shell, 14-Three actuating feet, 15-Commutator segment, 16-Protrusion, 17-Groove, 18-Fixing ramp, 19-Fixing platform, 20-Wire hole. Detailed Implementation

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0018] like Figure 1-3 The present invention provides the following technical solution: a single scraper motor assembly, including a motor body 1, a mounting housing 2, and a trigger 3 on one side of the mounting housing 2 for controlling the forward and reverse rotation of the motor body 1. The motor body 1 includes a rotating shaft 4, and a control wheel 5 is rotatably connected inside the mounting housing 2. The control wheel 5 is connected to the mounting housing 2 via a rotating shaft. The control wheel 5 is sleeved on one side of the mounting housing 2 via the rotating shaft. A fixing member 6 is provided at the end of the rotating shaft. The fixing member 6 and the control wheel 5 are engaged via a snap-fit ​​member 7. The fixing member 6 abuts against the inner wall of the mounting housing 2. The fixing member 6 at the end of the rotating shaft abuts against the inner wall of the mounting housing 2, thus axially limiting the rotation shaft and restricting its movement along its axis. At the same time, the fixing member 6 and the control wheel 5 are engaged via the snap-fit ​​member 7, so that the control wheel 5 and the rotating shaft are relatively fixed, avoiding axial relative displacement between them and ensuring the axial position of the control wheel 5 is stable during rotation with the rotating shaft. By fitting the rotating shaft into the mounting housing 2, limiting the axial contact of the rotating shaft with the fixing part 6, and securing the control wheel 5 to the fixing part 6 with the snap-fit ​​part 7, the axial vibration of the control wheel 5 during operation can be reduced, thereby reducing the operating noise and vibration caused by the axial vibration. After the axial position of the control wheel 5 is stabilized, the transmission accuracy between it and the rotating shaft 4 of the motor body 1 and subsequent transmission components is improved, which can avoid the transmission stroke fluctuation caused by the axial displacement of the control wheel 5, making the wiper arm swing angle more stable and improving the problem of abnormal wiping stroke. In addition, the relative fixation between the control wheel 5 and the rotating shaft can also reduce the axial friction and wear between components and extend the service life of the motor assembly.

[0019] like Figure 1-3The present invention provides the following technical solution: a single scraper motor assembly, wherein a rotating shaft 4 is placed inside a mounting housing 2, and the rotating shaft 4 is linked to a control wheel 5, enabling the rotating shaft 4 to drive the control wheel 5 to rotate. An output shaft 8 is rotatably mounted on one side of the mounting housing 2, and a connecting arm 9 is provided inside the mounting housing 2 for the output shaft 8. The other end of the connecting arm 9 is connected to the control wheel 5, enabling the rotating shaft 4 to drive the output shaft 8 to rotate through the connecting arm 9. The rotating shaft 4 is placed inside the mounting housing 2 and linked to the control wheel 5. This linkage connection allows the rotational motion of the rotating shaft 4 to be directly transmitted to the control wheel 5, ensuring that the two rotate synchronously and reducing the impact of power transmission gaps or looseness. The relative displacement is adjusted to prevent additional axial movement of the control wheel 5 during rotation. When the rotating shaft 4 drives the control wheel 5 to rotate, the control wheel 5 pushes or pulls the output shaft 8 through the connecting arm 9, causing the output shaft 8 to rotate around its own axis. The connecting arm 9 includes a first connecting member 10 rotatably connected to the output shaft 8. A second connecting member 11 is rotatably connected to one end of the first connecting member 10 away from the output shaft 8. The other end of the second connecting member 11 is rotatably connected to the control wheel 5. The second connecting member 11 is placed between the snap-fit ​​member 7 and the control wheel 5. The connecting arm 9 is rotatably connected to the output shaft 8 through the first connecting member 10, and to the first connecting member 10 and the control wheel 5 through the second connecting member 11. The control wheel 5 is rotatably connected, forming a multi-segment rotatable connection structure. Each rotatable connection allows relative rotation between the first connecting member 10 and the second connecting member 11, and between the second connecting member 11 and the control wheel 5. This buffers the axial displacement of the control wheel 5 caused by axial vibration, preventing the axial movement of the control wheel 5 from being directly and rigidly transmitted to the output shaft 8, and reducing vibration of the output shaft 8 caused by uneven axial force. The second connecting member 11 is placed between the snap-fit ​​member 7 and the control wheel 5. The snap-fit ​​spring can axially limit the movement of the second connecting member 11 along the axial direction of the control wheel 5, ensuring the stability of the connection position between the second connecting member 11 and the control wheel 5. The mounting housing 2 has an embedded groove 12 for mounting the actuator 3. The actuator 3 includes a housing 13 and three actuator feet 14. The control wheel 5 has a commutator 15 facing the actuator 3. The commutator 15 has a protrusion 16 on its inner ring and a groove 17 on its outer ring. The actuator feet 14 abut against the commutator 15. The actuator 3 is mounted through the embedded groove 12 in the mounting housing 2. The housing 13 can fix the actuator 3 as a whole, restricting its displacement in the mounting housing 2, and ensuring that the contact position between the three actuator feet 14 and the commutator 15 is stable. The forward and reverse rotation control of the motor is achieved by changing the circuit connection state between the actuator feet 14.Simultaneously, three trigger feet 14 ensure that the wiper motor can achieve the reset function when not grounded. A fixed ramp 18 is provided on the side of the motor body 1 facing the mounting housing 2. The mounting housing 2 is fixedly installed on the top of the fixed ramp 18, forming a fixed platform 19 between the motor body 1 and the fixed ramp 18. The fixed platform 19 has a wire hole 20, which communicates with the inside of the motor body 1. The fixed ramp 18 on the side of the motor body 1 facing the mounting housing 2 provides an inclined mounting reference surface for the mounting housing 2. The mounting housing 2 is fixedly installed on the top of the fixed ramp 18. The ramp structure keeps the connection position between the mounting housing 2 and the motor body 1 relatively fixed. The wire hole 20 on the fixed platform 19 communicates with the inside of the motor body 1, allowing the internal power supply cable to be led out through the hole. Furthermore, since the wire hole 20 is installed on the outer plane of the motor body 1, automated wiring installation can be achieved, greatly improving production capacity.

[0020] The beneficial effects of this utility model are as follows: the control wheel 5 is sleeved on one side of the mounting housing 2 via a rotating shaft, and the fixing member 6 at the end of the rotating shaft abuts against the inner wall of the mounting housing 2, thereby axially limiting the rotating shaft and restricting its movement along its axial direction.

Claims

1. A single-scraper motor assembly, comprising a motor body, wherein the motor body is provided with a mounting housing, and a trigger capable of controlling the forward and reverse rotation of the motor body is provided on one side of the mounting housing; the motor body includes a rotating shaft, and a control wheel is rotatably connected within the mounting housing, characterized in that: The control wheel is connected to the mounting housing by a rotating shaft. The control wheel is sleeved on one side of the mounting housing via the rotating shaft. A fixing member is provided at the end of the rotating shaft. The fixing member and the control wheel are engaged by a snap-fit ​​member. The fixing member abuts against the inner wall of the mounting housing.

2. The single scraper motor assembly according to claim 1, characterized in that: The rotating shaft is placed inside the mounting housing. The rotating shaft is linked to the control wheel, which enables the rotating shaft to drive the control wheel to rotate. An output shaft is rotatably provided on one side of the mounting housing. The output shaft is located inside the mounting housing and is provided with a connecting arm. The other end of the connecting arm is connected to the control wheel, which enables the rotating shaft to drive the output shaft to rotate through the connecting arm.

3. The single scraper motor assembly according to claim 2, characterized in that: The connecting arm includes a first connecting member rotatably connected to the output shaft, a second connecting member rotatably connected to one end of the first connecting member away from the output shaft, and the other end of the second connecting member rotatably connected to the control wheel. The second connecting member is positioned between the snap-fit ​​member and the control wheel.

4. A single scraper motor assembly according to claim 3, characterized in that: The mounting housing has an embedded groove for mounting the actuator. The actuator includes a housing and three actuator feet. The control wheel has a commutator segment at one end facing the actuator. The inner ring of the commutator segment has a protrusion, and the outer ring of the commutator segment has a groove. The actuator feet abut against the commutator segment.

5. A single scraper motor assembly according to any one of claims 1-4, characterized in that: The motor body has a fixed ramp on the side facing the mounting housing. The mounting housing is fixedly installed on the top of the fixed ramp. A fixed platform is formed between the motor body and the fixed ramp. The fixed platform has a wire hole that communicates with the inside of the motor body.

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