Automobile seat mechanical massage motor driver

Abstract

The utility model discloses an automobile seat mechanical massage motor driver which comprises a driving motor, a reduction gearbox assembly and a power output piece, the reduction gearbox assembly comprises a reduction gearbox body, a first worm, a first worm gear and a second worm are rotationally installed in a box body containing cavity of the reduction gearbox body, and the first worm is installed on a motor output shaft; a second worm, a second worm gear, a third worm and a third worm gear are further rotationally installed in the containing cavity of the box body, the first worm gear and the second worm are coaxially arranged and synchronously rotate, and the first worm is meshed with the first worm gear; the second worm gear is tightly sleeved on the third worm, and the second worm is meshed with the second worm gear; the third worm gear is arranged on the power output piece, and the third worm is meshed with the third worm gear. By means of the structural design, the self-locking mechanism has the advantages of being novel in structural design and large in self-locking force, and can be effectively suitable for a mechanical massage mechanism of an automobile seat.

Description

Technical Field

[0001] This utility model relates to the field of motor driver technology, and in particular to a mechanical massage motor driver for automotive seats. Background Technology

[0002] For a car seat mechanical massage mechanism, it generally includes a massage head, a hollow base, an inner rotor assembly, and a drive mechanism. The massage head is connected to the inner rotor assembly. The inner rotor assembly is installed inside the base, so that the inner rotor assembly is connected to a sliding groove on the inner wall of the base. The drive mechanism is connected to the inner rotor assembly. The drive mechanism is used to drive the inner rotor assembly, so that the inner rotor assembly rotates along the sliding groove, thereby realizing the rise or fall of the inner rotor assembly relative to the base. The drive mechanism includes a transmission rod and a motor. One end of the transmission rod is inserted into the connecting hole at the bottom of the inner rotor, and the other end is connected to the motor. The motor is a low-speed motor with higher torque.

[0003] It should be explained that the motor of the mechanical massage mechanism of a car seat needs to have a self-locking capability so that the massage head will not shift in the opposite direction under large external pressure.

[0004] Among them, the Chinese utility model patent with patent number ZL202420269799.3 and patent name: A geared motor drive mechanism specifically discloses the following technical solution: A geared motor drive mechanism includes a drive motor and a gear reducer. The gear reducer has an output shaft that outputs rotational force outward. The shaft of the drive motor and the output shaft of the gear reducer are set at an angle to each other. The gear reducer includes a first housing, a second housing, and a third housing. The first housing and the third housing are respectively disposed on the upper and lower sides of the second housing. The second housing extends radially to one side along the gear reducer to form a motor mounting part. The drive motor is mounted on the motor mounting part. The gear reducer includes a planetary gear unit and a transmission gear unit. A first transmission cavity is formed in the motor mounting part. The drive motor and the transmission gear unit are meshed and connected. The transmission gear unit includes a first transmission tooth and a second transmission tooth. The first transmission tooth and the second transmission tooth are coaxially arranged. The first transmission tooth is connected to the drive motor by a worm gear transmission, and the second transmission tooth is connected to the planetary gear unit by gear meshing transmission.

[0005] It should be noted that the above-mentioned geared motor drive mechanism still has the following defects: the reduction component inside the gear reducer only has a worm gear transmission pair, its self-locking force is still limited, and it cannot be used in the environment of large reaction force of automotive seat mechanical massage mechanism. Utility Model Content

[0006] The purpose of this utility model is to provide a mechanical massage motor driver for automobile seats that addresses the shortcomings of existing technologies. This mechanical massage motor driver for automobile seats has a novel structural design, a large self-locking force, and can be effectively applied to mechanical massage mechanisms for automobile seats.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0008] A mechanical massage motor driver for an automotive seat includes a drive motor, a gearbox assembly, and a power output component. The gearbox assembly includes a gearbox housing, and the gearbox housing has a housing cavity formed inside. A first worm and a first worm wheel are rotatably mounted inside the housing cavity.

[0009] The housing of the drive motor is securely mounted to the gearbox housing, and the motor output shaft of the drive motor extends into the housing cavity, with the first worm gear mounted on the motor output shaft;

[0010] The housing cavity also contains a second worm, a second worm wheel, a third worm, and a third worm wheel that are rotatably installed. The first worm wheel and the second worm are arranged coaxially and rotate synchronously. The first worm and the first worm wheel mesh with each other.

[0011] The second worm gear is fastened to the third worm, and the second worm meshes with the second worm gear;

[0012] The third worm gear is located on the power output component, and the third worm meshes with the third worm gear.

[0013] The housing contains a rotating component, the first worm gear is located at one end of the rotating component, and the second worm is located at the other end of the rotating component. The first worm gear and the second worm are integral components.

[0014] The third worm gear is arranged parallel to and spaced apart from the motor output shaft. The rotating component is perpendicular to both the motor output shaft and the third worm gear, and the motor output shaft and the power output component are located on the same side of the third worm gear.

[0015] The gearbox housing includes a main housing, a housing cavity is opened in the main housing, a cover is screwed onto the main housing and located at the opening of the housing cavity, and the housing of the drive motor is screwed and fastened to the main housing.

[0016] The main housing has a wear-resistant plate slot at one end of the third worm gear, and an axial wear-resistant plate is embedded in the wear-resistant plate slot. The end face of the third worm gear on the corresponding side contacts the axial wear-resistant plate.

[0017] The main housing has an outward-facing internal threaded hole on the other end of the third worm gear that communicates with the housing cavity. A clearance adjustment screw is installed inside the internal threaded hole. An axial wear-resistant pad is installed at the inner end of the clearance adjustment screw. The axial wear-resistant pad contacts the end face of the corresponding side of the third worm gear.

[0018] The inner end face of the gap adjusting set screw is provided with a set screw positioning hole, and the axial wear-resistant pad is provided with a positioning protrusion protruding toward the gap adjusting set screw side. The positioning protrusion of the axial wear-resistant pad is embedded in the set screw positioning hole of the gap adjusting set screw.

[0019] Compared with existing technologies, this utility model has the following beneficial effects: Specifically, during the rotation of the power output component driven by the drive motor, the first worm and the first worm wheel form a first worm wheel and worm pair, the second worm and the second worm wheel form a second worm wheel and worm pair, and the third worm and the third worm wheel form a third worm wheel and worm pair. This triple worm wheel and worm pair combination structure can achieve a triple self-locking function. Therefore, this utility model has the advantages of novel structural design and strong self-locking force, and can be effectively applied to automotive seat mechanical massage mechanisms. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0024] Figure 4 This is a partial structural schematic diagram of the present invention.

[0025] exist Figures 1 to 4 This includes:

[0026] 1-Drive motor; 11-Motor output shaft; 2-Reduction gearbox assembly; 21-Reduction gearbox housing; 211-Main housing; 2111-Wear-resistant plate slot; 2112-Internal threaded hole; 212-Gearbox cover; 22-Gearbox housing cavity; 231-First worm; 232-First worm wheel; 241-Second worm; 242-Second worm wheel; 251-Third worm; 252-Third worm wheel; 26-Rotating component; 3-Power output component; 4-Axial wear-resistant plate; 51-Clearance adjustment set screw; 511-Set screw positioning hole; 52-Axial wear-resistant pad; 521-Positioning protrusion. Detailed Implementation

[0027] The present invention will now be described in conjunction with specific embodiments.

[0028] Example 1, as Figures 1 to 4 As shown, a mechanical massage motor driver for an automotive seat includes a drive motor 1, a gearbox assembly 2, and a power output component 3. The gearbox assembly 2 includes a gearbox housing 21, and the gearbox housing 21 has a housing cavity 22 formed inside. A first worm gear 231 and a first worm wheel 232 are rotatably mounted inside the housing cavity 22.

[0029] The drive motor 1 is fixedly mounted on the gearbox housing 21, and the motor output shaft 11 of the drive motor 1 extends into the housing cavity 22. The first worm gear 231 is mounted on the motor output shaft 11.

[0030] Furthermore, such as Figures 2 to 4 As shown, a second worm 241, a second worm wheel 242, a third worm 251, and a third worm wheel 252 are rotatably installed inside the housing cavity 22. The first worm wheel 232 is coaxially arranged with the second worm 241 and rotates synchronously. The first worm 231 meshes with the first worm wheel 232.

[0031] Furthermore, the second worm gear 242 is fastened to the third worm 251, and the second worm 241 meshes with the second worm gear 242.

[0032] Furthermore, the third worm gear 252 is located on the power output component 3, and the third worm 251 meshes with the third worm gear 252.

[0033] In the process of driving the power output component 3 to rotate by the drive motor 1 in this embodiment, the reduction gearbox assembly 2 achieves speed reduction transmission through the first worm gear 232 worm pair composed of the first worm 231 and the first worm wheel 232, the second worm gear 242 worm pair composed of the second worm 241 and the second worm wheel 242, and the third worm gear 252 worm pair composed of the third worm 251 and the third worm wheel 252 246. Since each worm gear pair has a self-locking capability, the above-mentioned triple worm gear pair combination structure can achieve a triple self-locking function. That is, the car seat mechanical massage motor driver in this embodiment has a very high self-locking force. When the car seat mechanical massage motor driver in this embodiment is applied to the car seat mechanical massage mechanism, the above-mentioned triple self-locking structure can effectively keep the massage head at the required massage pressure position under the action of external force, and the massage head will not shift in the opposite direction under the action of large external pressure, thus having good stability and reliability.

[0034] In summary, the automotive seat mechanical massage motor driver of this embodiment has the advantages of novel structural design and strong self-locking force, and can be effectively applied to automotive seat mechanical massage mechanisms through the above structural design.

[0035] Example 2, as Figure 2 and Figure 4 As shown, the difference between this embodiment 2 and embodiment 1 is that: a rotating component 26 is rotatably installed in the housing cavity 22, a first worm gear 232 is disposed at one end of the rotating component 26, and a second worm 241 is disposed at the other end of the rotating component 26, and the first worm gear 232 and the second worm 241 are an integral structure.

[0036] In this second embodiment, the first worm gear 232 and the second worm 241 are an integral structure. This integral structure design can effectively ensure the accuracy of the synchronous rotation of the first worm gear 232 and the second worm 241, and also improve the convenience of assembly.

[0037] Example 3, as Figure 2 and Figure 4 As shown, the difference between this embodiment 3 and embodiment 1 is that the third worm 251 and the motor output shaft 11 are arranged in parallel and spaced apart, the rotating part 26 is perpendicular to the motor output shaft 11 and the third worm 251 respectively, and the motor output shaft 11 and the power output part 3 are located on the same side of the third worm 251 respectively.

[0038] The above-mentioned structural layout of the motor output shaft 11, rotating part 26, third worm gear 251 and power output part 3 has the advantages of good structural compactness and small size, and can effectively reduce the overall space occupied.

[0039] Example 4, as Figures 2 to 4 As shown, the difference between this embodiment four and embodiment one is that: the gearbox housing 21 includes a main housing 211, a housing cavity 22 is opened in the main housing 211, a housing cover 212 located at the opening of the housing cavity 22 is screwed onto the main housing 211, and the housing of the drive motor 1 is screwed and fastened to the main housing 211.

[0040] Among them, the main housing 211 has a wear-resistant plate slot 2111 on one end of the third worm 251. An axial wear-resistant plate 4 is embedded in the wear-resistant plate slot 2111, and the end face of the corresponding side of the third worm 251 contacts the axial wear-resistant plate 4.

[0041] In addition, the main housing 211 has an outwardly opening internal threaded hole 2112 on the other end of the third worm gear 251, which communicates with the housing cavity 22. The internal threaded hole 2112 is internally threaded with a clearance adjustment screw 51. The inner end of the clearance adjustment screw 51 is equipped with an axial wear-resistant pad 52, which contacts the end face of the corresponding side of the third worm gear 251.

[0042] During operation, the gap adjustment set screw 51 can be rotated to move axially relative to the third worm 251, thereby causing the gap adjustment set screw 51 and the axial wear-resistant pad 52 to move along the axial direction of the third worm 251, so as to ensure that the axial wear-resistant pad 52 and the end face of the third worm 251 maintain abutting contact.

[0043] When the third worm 251 becomes axially loose, the user can adjust the set screw 51 by rotating the clearance to keep the axial wear-resistant pad 52 in abutting contact with the end face of the third worm 251, which can effectively improve the axial impact resistance of the product.

[0044] Example 5, such as Figure 3 As shown, the difference between this embodiment 5 and embodiment 4 is that: the inner end face of the gap adjusting top screw 51 is provided with a top screw positioning hole 511, and the axial wear-resistant pad 52 is provided with a positioning protrusion 521 protruding toward the gap adjusting top screw 51. The positioning protrusion 521 of the axial wear-resistant pad 52 is embedded into the top screw positioning hole 511 of the gap adjusting top screw 51.

[0045] By cooperating with the positioning protrusion 521 and the positioning hole 511 of the set screw, this fifth embodiment can achieve a quick and accurate assembly connection between the gap adjustment set screw 51 and the axial wear-resistant pad 52.

[0046] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An automobile seat mechanical massage motor driver, comprising a driving motor (1), a reduction box assembly (2) and a power output (3), the reduction box assembly (2) comprises a reduction box body (21), a box accommodating cavity (22) is formed in the reduction box body (21), a first worm (231) and a first worm wheel (232) are rotatably installed in the box accommodating cavity (22), the driving motor (1) is fastened and installed on the reduction box body (21), and a motor output shaft (11) of the driving motor (1) extends into the box accommodating cavity (22), the first worm (231) is arranged on the motor output shaft (11); a second worm (241), a second worm wheel (242), a third worm (251) and a third worm wheel (252) are also rotatably installed in the box accommodating cavity (22), the first worm wheel (232) is coaxially arranged with the second worm (241) and synchronously rotates, the first worm (231) is engaged with the first worm wheel (232); characterized in that the second worm wheel (242) is fastened and sleeved on the third worm (251), the second worm (241) is engaged with the second worm wheel (242); the third worm wheel (252) is arranged on the power output (3), and the third worm (251) is engaged with the third worm wheel (252). The box accommodating cavity (22) is rotatably installed with a rotating piece (26), the first worm wheel (232) is arranged on one end of the rotating piece (26), the second worm (241) is arranged on the other end of the rotating piece (26), and the first worm wheel (232) and the second worm (241) are an integral structure.

2. The mechanical massage motor driver for a car seat according to claim 1, characterized in that: The third worm (251) is parallelly and spacedly arranged with the motor output shaft (11), the rotating piece (26) is perpendicular to the motor output shaft (11) and the third worm (251), and the motor output shaft (11) and the power output (3) are located on the same side of the third worm (251).

3. The mechanical massage motor driver for a car seat according to claim 2, characterized in that: The reduction box body (21) comprises a main box body (211), the box accommodating cavity (22) is arranged on the main box body (211), the main box body (211) is screw-fastened with a box cover (212) located at an opening position of the box accommodating cavity (22), and the shell of the driving motor (1) is screw-fastened on the main box body (211); 4. The mechanical massage motor driver for a car seat according to claim 1, characterized in that: the main box body (211) is provided with a wear-resistant sheet clamping groove (2111) on one end side of the third worm (251), an axial wear-resistant sheet (4) is clampingly installed in the wear-resistant sheet clamping groove (2111), and an end face of the corresponding side of the third worm (251) is in contact with the axial wear-resistant sheet (4); the main box body (211) is provided with an internally-threaded hole (2112) opening outward and communicating with the box accommodating cavity (22) on the other end side of the third worm (251), a gap adjustment jackscrew (51) is screw-fastened in the internally-threaded hole (2112), an axial wear-resistant pad (52) is arranged on an inner end of the gap adjustment jackscrew (51), and an end face of the corresponding side of the third worm (251) is in contact with the axial wear-resistant pad (52). ​ 5. The mechanical massage motor driver for a car seat according to claim 4, characterized in that: The inner end face of the gap adjusting top pin (51) is provided with a top pin positioning hole (511), the axial wear-resistant pad (52) is provided with a positioning protrusion (521) protruding towards the gap adjusting top pin (51), and the positioning protrusion (521) of the axial wear-resistant pad (52) is embedded into the top pin positioning hole (511) of the gap adjusting top pin (51).

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