High-reliability windscreen wiper motor

Abstract

The utility model provides a windscreen wiper motor with high reliability, which comprises a shell, a motor body, a worm, a turbine, a transmission mechanism and a connecting rod, the motor body is fixed on the outer side surface of the shell, the output end of the motor body is fixed with the worm, and the worm is rotatably arranged in the shell; the outer side face of the worm is meshed with a turbine, the turbine is connected with the input end of a transmission mechanism, and the transmission mechanism is fixed in the shell. A connecting rod is fixed to the output end of the transmission mechanism and rotationally connected with the shell, and a windscreen wiper connecting rod is fixed to one end of the connecting rod. A rotating speed sensor is fixed in the shell, and a fan is fixed to the outer side face of the shell through a positioning frame. According to the utility model, on the premise that the rotating speed of the motor body is not changed, the speed regulation function of the windscreen wiper is realized, and whether the motor body operates normally or not can be detected.

Description

Technical Field

[0001] This utility model belongs to the technical field of windshield wiper accessories, and in particular relates to a high-reliability windshield wiper motor. Background Technology

[0002] The wiper motor is the core component of a car's wiper system. Its main function is to provide power for the wipers to wipe, thereby ensuring a clear view through the windshield in rain, snow, or other adverse weather conditions, and ensuring driving safety.

[0003] Existing automotive wiper motors typically consist of a motor body, a transmission mechanism, and output components connected to the wiper linkage. The motor body directly drives the transmission mechanism, which in turn drives the wiper to perform the wiping action. However, existing automotive wiper motors have the following drawbacks in practical use:

[0004] First, in terms of the transmission mechanism, worm gear transmission is generally used directly, which does not have the function of flexibly adjusting the wiper speed. If different speeds of the wiper are to be achieved, the rotation speed of the motor body needs to be adjusted. This not only increases the complexity of motor control, but may also affect the service life and stability of the motor.

[0005] Furthermore, existing wiper motors cannot monitor the working status of the motor itself. This makes it difficult for drivers to intuitively and promptly understand whether the motor is working properly. If the motor malfunctions, it cannot be detected and repaired in time, thus affecting the cleaning effect of the windshield and reducing driving safety.

[0006] Therefore, it is essential to invent a highly reliable windshield wiper motor. Utility Model Content

[0007] To address the above problems, this utility model proposes a highly reliable windshield wiper motor, and the technical solution used is as follows:

[0008] A high-reliability windshield wiper motor includes a housing, a motor body, a worm gear, a turbine, a transmission mechanism, and a connecting rod. The motor body is bolted to the outer side of the housing, and the output end of the motor body is fixed to the worm gear, which is rotatably mounted inside the housing via a support bearing. The turbine gear meshes with the outer side of the worm gear and is connected to the input end of the transmission mechanism, which is fixed inside the housing. The output end of the transmission mechanism is fixed to the connecting rod, which is rotatably connected to the housing via a support bearing, and one end of the connecting rod is fixed to a windshield wiper linkage. The motor body is electrically connected to the car's center console via a data cable.

[0009] Furthermore, a speed sensor is fixed to the inner wall of the housing by bolts. The detection end of the speed sensor is located on the outside of the worm gear, and the speed sensor is electrically connected to the car's center console via a data cable. This arrangement makes it easy for staff to confirm whether the motor body is working properly.

[0010] Furthermore, a positioning frame is fixed to the outer side of the housing by bolts, and a fan is fixed inside the positioning frame by bolts, with the output end of the fan facing the motor body; the fan is electrically connected to the car's center console via a data cable. This arrangement enables heat dissipation from the motor body.

[0011] Furthermore, the transmission mechanism includes a first rotating shaft, a first gear, a second gear, a second rotating shaft, and a reduction mechanism. The first rotating shaft is rotatably mounted inside the housing via a support bearing, and a turbine and a first gear are fixed to the outer surface of the first rotating shaft respectively. Two second gears mesh with the outer surface of the first gear, and a second rotating shaft is fixed to the middle of each of the second gears. The second rotating shafts are rotatably connected to the housing via support bearings. The second rotating shafts are connected to the connecting rod via the reduction mechanism. This arrangement enables the kinetic energy of the turbine to be transmitted to the connecting rod.

[0012] Furthermore, the deceleration mechanism includes a third gear, a fourth gear, an electric braking mechanism, and a fifth gear. The third gear and the fourth gear are both fixed to the corresponding second rotating shafts via the electric braking mechanism, and both the third gear and the fourth gear are meshed with the fifth gear, wherein the fifth gear is fixed to the connecting rod. The diameter of the third gear is larger than the diameter of the fourth gear, and the diameters of the third gear and the fifth gear are the same. This arrangement can satisfy the normal operation and slow operation of the car windshield wiper, respectively.

[0013] Furthermore, the electric braking mechanism includes an outer sleeve, an inner sleeve, an electric push rod, and a pressing plate. The outer sleeve is fixed to the third or fourth gear by bolts, and the inner sleeve is rotatably mounted inside the outer sleeve via a support bearing. The inner sleeve is fixed to the outer side of the corresponding second rotating shaft. An electric push rod is fixed to the outer side of the outer sleeve, and the output end of the electric push rod is fixed to the pressing plate, which is located outside the second rotating shaft. The electric push rod is electrically connected to the car's center console via a data cable. This configuration allows the electric push rod to drive the pressing plate to press the second rotating shaft, thereby locking the second rotating shaft with the third or fourth gear through friction.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The design of this utility model, when in use, enables the windshield wipers to perform corresponding actions through the coordinated operation of the motor body, worm gear, turbine, transmission mechanism, and connecting rod. In particular, by changing the state of the reduction mechanism inside the transmission mechanism, it can meet the different needs of normal and slow wiping speeds of the car windshield wipers without adjusting the speed of the motor body, which greatly simplifies the control logic and improves stability and reliability.

[0016] 2. The speed sensor of this utility model can monitor the rotational state of the worm gear driven by the motor body in real time and transmit the detection data to the car's center console in a timely manner. With the help of this data, the driver can intuitively and accurately confirm whether the working status of the motor body is normal, thereby discovering potential faults in advance and ensuring the stable operation of the windshield wipers. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0020] Figure 3 This is a schematic diagram of the transmission mechanism of this utility model.

[0021] Figure 4 This is a schematic diagram of the deceleration mechanism of this utility model.

[0022] Figure 5 This is a cross-sectional structural schematic diagram of the electric braking mechanism of this utility model.

[0023] In the picture:

[0024] 1-Outer casing, 2-Motor body, 3-Worm gear, 4-Turbine, 5-Transmission mechanism, 51-First rotating shaft, 52-First gear, 53-Second gear, 54-Second rotating shaft, 55-Reduction mechanism, 551-Third gear, 552-Fourth gear, 553-Electric braking mechanism, 5531-Outer sleeve, 5532-Inner sleeve, 5533-Electric push rod, 5534-Extrusion plate, 554-Fifth gear, 6-Connecting rod, 7-Speed ​​sensor, 8-Positioning frame, 9-Fan. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0027] Please see Figures 1 to 5 As shown, this utility model is a high-reliability windshield wiper motor, including a housing 1, a motor body 2, a worm gear 3, a turbine 4, a transmission mechanism 5, and a connecting rod 6. The motor body 2 is fixed to the outer side of the housing 1 by bolts, wherein the output end of the motor body 2 is fixed to the worm gear 3, and the worm gear 3 is rotatably mounted inside the housing 1 through a support bearing; the turbine 4 is engaged on the outer side of the worm gear 3, wherein the turbine 4 is connected to the input end of the transmission mechanism 5, and the transmission mechanism 5 is fixed inside the housing 1; the output end of the transmission mechanism 5 is fixed to the connecting rod 6, wherein the connecting rod 6 is rotatably connected to the housing 1 through a support bearing, and one end of the connecting rod 6 is fixed to a windshield wiper linkage; the motor body 2 is electrically connected to the car's center console through a data cable.

[0028] Specifically, a speed sensor 7 is fixed to the inner wall of the outer casing 1 by bolts. The detection end of the speed sensor 7 is located on the outside of the worm gear 3, and the speed sensor 7 is electrically connected to the car center console via a data cable. When in use, the speed sensor 7 can detect whether the worm gear 3 is rotating under the drive of the motor body 2, and transmit the detection data to the car center console, so that the driver can confirm whether the motor body 2 is working properly.

[0029] Specifically, a positioning frame 8 is fixed to the outer side of the outer casing 1 by bolts, and a fan 9 is fixed inside the positioning frame 8 by bolts. The output end of the fan 9 faces the motor body 2. The fan 9 is electrically connected to the car center console via a data cable. When in use, the fan 9 can be started through the car center console, and the fan 9 can blow air to cool the motor body 2, thereby improving the stability of the motor body 2.

[0030] Specifically, the transmission mechanism 5 includes a first rotating shaft 51, a first gear 52, a second gear 53, a second rotating shaft 54, and a reduction mechanism 55. The first rotating shaft 51 is rotatably mounted inside the housing 1 via a support bearing, and a turbine 4 and a first gear 52 are fixed to the outer side of the first rotating shaft 51 respectively. Two second gears 53 mesh with the outer side of the first gear 52, and a second rotating shaft 54 ​​is fixed to the middle of each of the second gears 53. The second rotating shafts 54 are rotatably connected to the housing 1 via support bearings. The second rotating shafts 54 are connected to the connecting rod 6 via the reduction mechanism 55. In use, the first rotating shaft 51 can rotate under the drive of the turbine 4, and then the second rotating shaft 54 ​​is driven to rotate accordingly through the cooperation of the first gear 52 and the second gear 53. Then, the connecting rod 6 is driven to rotate through the reduction mechanism 55.

[0031] Specifically, the reduction mechanism 55 includes a third gear 551, a fourth gear 552, an electric braking mechanism 553, and a fifth gear 554. The third gear 551 and the fourth gear 552 are both fixed to their respective second rotating shafts 54 via the electric braking mechanism 553, and both are meshed with the fifth gear 554, which is fixed to the connecting rod 6. The diameter of the third gear 551 is larger than the diameter of the fourth gear 552, and the diameters of the third gear 551 and the fifth gear 554 are the same. When the windshield wipers need to operate normally, the electric braking mechanism 553 can activate the reduction gear. The third gear 551 and the second rotating shaft 54 ​​are locked, and the fourth gear 552 and the second rotating shaft 54 ​​are released. Then, through the cooperation of the second rotating shaft 54, the third gear 551, the fifth gear 554 and the connecting rod 6, the windshield wipers are driven to move accordingly. When the windshield wipers are slowly wiping the windshield as needed, the electric braking mechanism 553 can lock the fourth gear 552 and the second rotating shaft 54, and release the third gear 551 and the second rotating shaft 54. Then, through the cooperation of the second rotating shaft 54, the fourth gear 552, the fifth gear 554 and the connecting rod 6, the windshield wipers are driven to move accordingly.

[0032] Specifically, the electric braking mechanism 553 includes an outer sleeve 5531, an inner sleeve 5532, an electric push rod 5533, and a pressing plate 5534. The outer sleeve is fixed to the third gear 551 or the fourth gear 552 by bolts, and the inner sleeve 5532 is rotatably mounted inside the outer sleeve 5531 through a support bearing. The inner sleeve 5532 is fixed to the outer side of the corresponding second rotating shaft 54. The electric push rod 5533 is fixed to the outer side of the outer sleeve 5531, and the pressing plate 5534 is fixed to the output end of the electric push rod 5533. The pressing plate 5534 is located outside the second rotating shaft 54. The electric push rod 5533 is electrically connected to the car's center console through a data cable. When in use, the electric push rod 5533 can drive the pressing plate 5534 to press the second rotating shaft 54, thereby locking the second rotating shaft 54 ​​with the third gear 551 or the fourth gear 552 through friction.

[0033] Please see Figures 1-5 As shown, this utility model is a high-reliability windshield wiper motor. Its working principle is as follows: When in use, the outer shell 1 can be fixed to the vehicle body with bolts, and then the wiper linkage can be fixed to the connecting rod 6. Then, through the coordinated cooperation of the motor body 2, worm gear 3, turbine 4, transmission mechanism 5 and connecting rod 6, the wiper can be driven to perform corresponding actions. The speed sensor 7 can detect whether the motor body 2 is working properly. In addition, the fan 9 can dissipate heat from the motor body 2.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-reliability windshield wiper motor, comprising a housing (1), a motor body (2), a worm gear (3), a turbine (4), a transmission mechanism (5), and a connecting rod (6), characterized in that: The outer side of the housing (1) is fixed with a motor body (2), wherein the output end of the motor body (2) is fixed with a worm gear (3), which is rotatably installed inside the housing (1); a turbine (4) is engaged on the outer side of the worm gear (3), wherein the turbine (4) is connected to the input end of a transmission mechanism (5), which is fixed inside the housing (1); a connecting rod (6) is fixed at the output end of the transmission mechanism (5), wherein the connecting rod (6) is rotatably connected to the housing (1), and a wiper linkage is fixed at one end of the connecting rod (6); the motor body (2) is electrically connected to the car center console via a data cable.

2. The high-reliability wiper motor as described in claim 1, characterized in that: A speed sensor (7) is fixed on the inner wall of the housing (1), wherein the detection end of the speed sensor (7) is located on the outside of the worm (3), and the speed sensor (7) is electrically connected to the car center console through a data cable.

3. A high-reliability wiper motor as described in claim 1, characterized in that: A positioning frame (8) is fixed on the outer side of the outer shell (1), and a fan (9) is fixed inside the positioning frame (8). The output end of the fan (9) faces the motor body (2). The fan (9) is electrically connected to the car center console via a data cable.

4. A high-reliability wiper motor as described in claim 1, characterized in that: The transmission mechanism (5) includes a first rotating shaft (51), a first gear (52), a second gear (53), a second rotating shaft (54), and a reduction mechanism (55). The first rotating shaft (51) is rotatably installed inside the housing (1), and a turbine (4) and a first gear (52) are fixed on the outer side of the first rotating shaft (51). Two second gears (53) mesh on the outer side of the first gear (52), and a second rotating shaft (54) is fixed in the middle of each of the second gears (53). The second rotating shafts (54) are rotatably connected to the housing (1). The second rotating shafts (54) are connected to the connecting rod (6) through the reduction mechanism (55).

5. A high-reliability wiper motor as described in claim 4, characterized in that: The deceleration mechanism (55) includes a third gear (551), a fourth gear (552), an electric braking mechanism (553), and a fifth gear (554). The third gear (551) and the fourth gear (552) are both fixed on the corresponding second rotating shaft (54) by the electric braking mechanism (553), and the third gear (551) and the fourth gear (552) are both meshed with the fifth gear (554). The fifth gear (554) is fixed on the connecting rod (6). The diameter of the third gear (551) is larger than the diameter of the fourth gear (552), and the diameter of the third gear (551) is the same as the diameter of the fifth gear (554).

6. A high-reliability wiper motor as described in claim 5, characterized in that: The electric braking mechanism (553) includes an outer sleeve (5531), an inner sleeve (5532), an electric push rod (5533), and a pressing plate (5534). The outer sleeve is fixed to a third gear (551) or a fourth gear (552), and the inner sleeve (5532) is rotatably installed inside the outer sleeve (5531). The inner sleeve (5532) is fixed to the outer side of the corresponding second rotating shaft (54). The electric push rod (5533) is fixed to the outer side of the outer sleeve (5531), and the pressing plate (5534) is fixed to the output end of the electric push rod (5533). The pressing plate (5534) is located outside the second rotating shaft (54). The electric push rod (5533) is electrically connected to the car's center console via a data cable.

Images