WO2024083154A1 - Massage mechanism for car seat and car seat comprising same - Google Patents

Abstract

A massage mechanism for a car seat and a car seat comprising same. The massage mechanism comprises a massage head (10), a torsion spring shock absorbing mechanism (20), a hollow base (30), an inner rotor assembly and a driving mechanism. The massage head (10) is connected to the inner rotor assembly by means of the torsion spring shock absorbing mechanism (20); the inner rotor assembly is mounted in the base (30), so that the inner rotor assembly is connected to a sliding groove (31) on the inner wall surface of the base (30), and the driving mechanism is connected to the inner rotor assembly; and the driving mechanism is used for driving the inner rotor assembly, so that the inner rotor assembly rotates along the sliding groove (31), thereby realizing the lifting or lowering of the inner rotor assembly relative to the base (30).

Description

Massage mechanism for car seat and car seat including the same Technical Field

The present application relates to the field of seats, and in particular to a massage mechanism for a car seat and a car seat comprising the same.

Background technique

As people's requirements for the comfort of car seats are getting higher and higher, adding massage functions to car seats has become an inevitable trend. The massage function of car seats is usually achieved by mechanical massage systems simulating real massage techniques. For example, pressing acupuncture points on the human body, rotating up and down, and having massage functions and lumbar support functions.

However, in the prior art, the mechanical massage structure currently used in car seats is relatively complex. The position and center of gravity of the motor and massage head are not arranged reasonably, resulting in the center of gravity being on the same side of the backrest, making the overall structure very heavy. Moreover, the front motor is not conducive to the comfort of the backrest. Therefore, this mechanical massage system structure cannot be applied to a wide range of car seat back structures.

In addition, the massage heads commonly used at present are usually single-convex point structures, using double springs, and the massage heads and rotors are buckled to prevent them from falling out. The motor is arranged on the front and driven by gears.

These structures have the following disadvantages:

1. The massage comfort is relatively hard;

2. It does not fit the curve of the human back;

3. Buckles are prone to fatigue fracture;

4. The weight is too heavy;

5. Low transmission efficiency;

6. The motor layout is unbalanced and affects the layout of the front foam cover.

In view of this, the inventor of the present application has designed a massage mechanism for a vehicle-mounted massage seat and a vehicle seat including the same, in order to overcome the above-mentioned technical problems.

Summary of the invention

In order to overcome the shortcomings of the prior art, one of the purposes of this application is to overcome the defects of the mechanical massage structure load used in the car seats in the prior art, the heavy weight of the overall structure, and the low backrest comfort, and to provide a massage mechanism for a car massage seat and a car seat including the same.

According to the first aspect of this application:

A massage mechanism for a vehicle-mounted massage seat, the massage mechanism comprising a massage head, a torsion spring damping mechanism, a hollow base, an inner rotor assembly and a driving mechanism, the massage head being connected to the inner rotor assembly via the torsion spring damping mechanism;

The inner rotor assembly is installed in the base, so that the inner rotor assembly is connected to the slide groove on the inner wall surface of the base, and the driving mechanism is connected to the inner rotor assembly;

The driving mechanism is used to drive the inner rotor assembly so that the inner rotor assembly rotates along the slide slot, thereby achieving the rise or fall of the inner rotor assembly relative to the base.

In some embodiments, the inner rotor assembly includes an inner rotor and a bearing roller, wherein the bearing roller is mounted on an outer wall surface of the inner rotor and inserted into the slide groove.

In some embodiments, the driving mechanism includes a transmission rod and a motor, one end of the transmission rod is inserted into a connecting hole at the bottom of the inner rotor, and the other end is connected to the motor;

When the motor drives the transmission rod to rotate, the transmission rod drives the bearing roller to roll along the slide groove, thereby driving the inner rotor to move.

In some embodiments, the slide groove is a continuous spiral structure, and the inner rotor rises or descends in a spiral along the inner wall surface of the base.

In some embodiments, the torsion spring shock absorbing mechanism includes a plurality of torsion springs, a plurality of mounting portions are provided on the bottom end surface of the massage head, a plurality of connecting columns are provided on the inner bottom surface of the inner rotor, one end of the torsion spring is fixed to the corresponding mounting portion, and the other end is connected to the corresponding connecting column.

In some embodiments, the mounting portion is a claw that vertically protrudes along the bottom end surface of the massage head; the connecting column is a snap-fit structure that vertically protrudes along the inner bottom surface of the inner rotor.

In some embodiments, a first slot is formed on the outer wall surface of the inner rotor, and the bearing roller includes a roller and a ball bearing connected as one body, the ball bearing is inserted into the first slot, and the roller protrudes outward along the outer wall surface of the inner rotor.

In some embodiments, the first slot is located at a lower portion of the inner rotor.

In some embodiments, the massage mechanism further includes an induction magnet and a sensor, a second slot is provided on the outer wall surface of the inner rotor, the induction magnet is installed in the second slot, the sensor is installed on the outer wall surface of the base, and the sensor and the induction magnet are mutually inductively coupled.

In some embodiments, the upper portion of the transmission rod is a cross-shaped structure, which cooperates with the connecting hole at the bottom of the inner rotor;

The lower part of the transmission rod is a columnar structure, which cooperates with the output port of the motor.

In some embodiments, the massage head is a double-convex point massage head.

A car seat is characterized in that the car seat comprises the massage mechanism for the in-vehicle massage seat as described above.

The positive and progressive effects of the massage mechanism for a vehicle-mounted massage seat and the implementation of the vehicle seat of the first aspect of the present application described above include but are not limited to:

1. The three-spring shock-absorbing system absorbs the gap caused by vibration as much as possible and fits the curve of the human back; the structure is simple, the number of parts is small, and it is easy to assemble;

Second, the simplified structure makes it have a more efficient transmission rate, and the torque of the motor can be transmitted to the massage head more directly and efficiently;

3. The transmission efficiency of a single motor driving a single massage head is optimized, and it can carry a larger load;

4. The rear-mounted motor and transmission structure are conducive to the layout of the front foam and the face cover, optimizing comfort;

5. The rear-mounted motor does not affect the lifting and lowering stroke of the massage structure. In theory, the massage stroke can continue to increase, improving the massage effect;

6. The structure is deeply optimized, and the modular structure is conducive to arrangement in the backrests of various models.

According to the second aspect of this application:

A massage mechanism for a car seat, the massage mechanism comprising a plurality of ball-pin type massage head assemblies, a transmission mechanism and a drive mechanism, wherein the ball-pin type massage head assemblies are respectively connected to the drive mechanism through the transmission mechanism;

Each of the ball-pin type massage head components comprises a massage head, an inner rotor component and a base, wherein the massage head is rotatably connected to the inner rotor component, and the inner rotor component is installed in the base so that the inner rotor component is connected to the slide groove on the inner wall surface of the base;

The driving mechanism is used to drive the transmission mechanism to drive the inner rotor assembly to rotate along the slide slot, thereby achieving the rise or fall of the inner rotor assembly relative to the base.

In some embodiments, the inner rotor assembly includes an inner rotor and a bearing roller, wherein the bearing roller is mounted on an outer wall surface of the inner rotor, and the inner rotor is mounted in the base so that the bearing roller is inserted into the slide groove.

In some embodiments, each of the ball-pin type massage head components further comprises a rotation connection component and a torsion spring, wherein the massage head is connected to the inner rotor via the rotation connection component, and the torsion spring is mounted on the massage head. and between the inner rotor.

In some embodiments, the driving mechanism includes a motor and a transmission rod, 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 transmission mechanism, and the motor is connected to the transmission mechanism;

The motor drives the transmission mechanism, and the transmission mechanism drives the transmission rod to rotate, so that the bearing roller rolls along the slide groove, thereby driving the inner rotor to move.

In some embodiments, the transmission mechanism includes an output gear, a transmission gear assembly and a plurality of input gears, each of the input gears is mounted on the input end of the corresponding ball-pin type massage head assembly, the input gears are respectively meshed with the transmission gear assembly, the output gear is connected to the output end of the motor, and the output gear is meshed with the transmission gear assembly;

The motor drives the output gear, drives the transmission gear assembly, and then transmits power to the input gear, thereby driving the ball-pin type massage head assembly to move.

In some embodiments, the transmission gear assembly includes a first transmission gear, a connecting key, and a second transmission gear, wherein the connecting key passes through the first transmission gear and the second transmission gear in sequence to lock the first transmission gear and the second transmission gear up and down, and the diameter of the first transmission gear is greater than the diameter of the second transmission gear;

The input gear is meshed with the first transmission gear, and the output gear is meshed with the second transmission gear.

In some embodiments, a boss is provided in the inner rotor, a circle of mounting groove is formed between the boss and the inner wall surface of the inner rotor, the massage head is connected to the boss through the rotating connection assembly, one end of the torsion spring is installed in the mounting groove, and the other end is connected to the bottom end surface of the massage head.

In some embodiments, a circle of raised portions is disposed on the bottom end surface of the massage head, and the other end of the torsion spring is connected to the raised portion.

In some embodiments, the rotating connection assembly includes at least one group of rotating connection members, each group of the rotating connection members includes a plurality of connection plates and a plurality of connection pins, and two adjacent connection plates are rotationally connected through the connection pins;

The boss is provided with a first positioning portion, the bottom end surface of the massage head is provided with a second positioning portion, one end of the rotating connecting member is connected to the first positioning portion, and the other end is connected to the second positioning portion.

In some embodiments, the slide groove is a continuous spiral structure, and the inner rotor is arranged along the base. The inner wall surface spirals up or down.

In some embodiments, a first slot is formed on the outer wall surface of the inner rotor, and the bearing roller includes a roller and a ball bearing connected as one body, the ball bearing is inserted into the first slot, and the roller protrudes outward along the outer wall surface of the inner rotor.

In some embodiments, the first slot is located at a lower portion of the inner rotor.

In some embodiments, the ball pin type massage head assembly also includes an induction magnet and a sensor, a second slot is opened on the outer wall surface of the inner rotor, the induction magnet is installed in the second slot, and the sensor is installed on the outer wall surface of the base, and the sensor and the induction magnet are mutually inductive.

In some embodiments, the massage head is a double-convex point massage head.

A car seat comprises the massage mechanism for the car seat as described above.

The positive and progressive effects of the massage mechanism for a car seat and the implementation of the car seat in the second aspect of the present application described above include but are not limited to:

1. The massage head can rotate 180 degrees adaptively to fit the back line;

Second, the ball pin structure is more comfortable than other structures, and can imitate the double finger pressure in professional massage techniques to achieve a deep and shallow pressing effect;

3. The massage head rises vertically to the backrest and rotates to apply gentle pressure;

Fourth, the simplified structure can achieve a more efficient transmission rate, and the torque of the motor can be transmitted to the massage head more directly and efficiently;

5. The rear-mounted motor and transmission structure are conducive to the layout of the front foam and the face cover, optimizing comfort;

6. The rear-mounted motor does not affect the lifting and lowering stroke of the massage structure. In theory, the massage stroke can continue to increase to improve the massage effect.

According to the third aspect of this application:

A vehicle-mounted massage seat with a mechanical massage mechanism, the vehicle-mounted massage seat comprising a seat back, a plurality of mechanical massage mechanisms and a control system, the mechanical massage mechanisms being installed on the seat back in a plurality of rows and columns, the mechanical massage mechanisms being connected to the control system, and the mechanical massage mechanisms being controlled by the control system to realize a plurality of lumbar support modes and a plurality of massage modes.

In some embodiments, at least one row of the mechanical massage mechanisms uses a single motor to drive two massage heads, and at least one row of the mechanical massage mechanisms uses a single motor to drive a single massage head.

In some embodiments, the vehicle-mounted massage seat includes at least three rows of mechanical massage mechanisms, In the embodiment, at least one row of the mechanical massage mechanisms located in the upper part adopts a single motor to drive two massage heads, and at least two rows of the mechanical massage mechanisms located in the middle and lower parts adopt a single motor to drive a single massage head.

In some embodiments, the lumbar support mode includes an upper lumbar support mode, in which the mechanical massage mechanism located in the middle rises to a highest stroke.

In some embodiments, the lumbar support mode includes a middle lumbar support mode, in which the mechanical massage mechanisms located in the middle and lower parts are both raised to the highest stroke.

In some embodiments, the lumbar support mode includes a lower lumbar support mode, in which the mechanical massage mechanism located at the lower portion rises to a highest stroke.

In some embodiments, the massage mode includes a cat's paw mode. In the cat's paw mode, the massage head of the mechanical massage mechanism located at the bottom rotates 72° from left to right, then switches to the massage head of the mechanical massage mechanism located in the middle and rotates 72° from left to right, and finally transmits to the massage head of the mechanical massage mechanism located at the top and rotates 72°, and the cycle continues.

In some embodiments, the massage mode includes a shoulder mode. In the shoulder mode, the massage head of the mechanical massage mechanism located in the middle rotates 120° from left to right, and then the massage head of the mechanical massage mechanism located in the upper part rotates 120° each, and the cycle continues.

In some embodiments, the massage mode includes a wave mode. In the wave mode, the massage heads of the mechanical massage mechanism located at the bottom rotate 60° each, which is transmitted to the massage heads of the mechanical massage mechanism located in the middle to rotate 60° each, and then transmitted to the massage heads of the mechanical massage mechanism located at the top to rotate 60° each, and the cycle continues.

In some embodiments, the massage mode includes a waist mode, in which the massage head of the mechanical massage mechanism located at the bottom rotates 180° from left to right in sequence.

In some embodiments, the rotation angle of the massage head of the mechanical massage mechanism is memorized by a Hall motor and stored in an electronic control unit of the control system. The start time and the end time are determined by a written code and stored in the electronic control unit.

The positive and progressive effects of the implementation of the vehicle-mounted massage seat with a mechanical massage mechanism according to the third aspect of the present application described above include but are not limited to:

The in-vehicle massage seat with a mechanical massage mechanism uses a motor-controlled massage head that can achieve forward and reverse rotation, as well as raising and lowering, so there are many permutations and combinations. The functional modes that can be achieved by these combinations are not limited to the three lumbar support modes and four massage modes. The later scalability is very high, and the mode can be updated through OTA.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other features, properties and advantages of the present application will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

FIG. 1 is a perspective view of a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 2 is a second stereoscopic view of a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 3 is a third stereoscopic view of a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 4 is an exploded view of a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 5 is a schematic diagram of the internal structure of a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 6 is a first structural diagram of a base in a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 7 is a second structural schematic diagram of a base in a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 8 is a first structural schematic diagram of an inner rotor in a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 9 is a second structural schematic diagram of an inner rotor in a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 10 is a schematic structural diagram of a massage head in a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 11 is a schematic diagram of the structure of a transmission rod in a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 12 is a schematic diagram of the structure of a motor in a massage mechanism for a vehicle-mounted massage seat according to an embodiment of the present application.

FIG. 13 is a front schematic diagram of a massage mechanism arranged in a car seat according to an embodiment of the present application.

FIG. 14 is an enlarged schematic diagram of portion A in FIG. 13 .

FIG. 15 is a schematic diagram of the back side of a massage mechanism arranged in a car seat according to an embodiment of the present application.

FIG. 16 is a three-dimensional view of a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 17 is an exploded view of a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 18 is a first stereoscopic view of a ball-pin type massage head assembly and a motor installed as one in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 19 is a ball-pin type massage head assembly and a massage mechanism for a car seat in another embodiment of the present application. The motor is installed as a three-dimensional picture 2.

FIG. 20 is a stereoscopic view of a ball-pin type massage head assembly in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 21 is a schematic diagram of the internal structure of a ball-pin type massage head assembly in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 22 is a schematic diagram of an exploded view of a ball-pin type massage head assembly in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 23 is a first stereoscopic view of a massage head in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 24 is a second stereoscopic view of a massage head in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 25 is a stereoscopic view of an inner rotor in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 26 is a schematic diagram of the internal structure of an inner rotor in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 27 is an exploded view of a rotating connection assembly in a massage mechanism for a car seat according to another embodiment of the present application.

FIG. 28 is a front schematic diagram of a massage mechanism arranged in a car seat according to another embodiment of the present application.

FIG. 29 is an enlarged schematic diagram of portion A in FIG. 28 .

FIG. 30 is a schematic diagram of the back side of a massage mechanism arranged in a car seat according to another embodiment of the present application.

FIG31 is a schematic diagram showing the arrangement of a vehicle-mounted massage seat with a mechanical massage mechanism according to yet another embodiment of the present application.

FIG. 32 is a schematic diagram of the state of a vehicle massage seat with a mechanical massage mechanism according to yet another embodiment of the present application when the lumbar support mode is in the upper lumbar support mode.

FIG. 33 is a schematic diagram of the state of a vehicle massage seat with a mechanical massage mechanism according to yet another embodiment of the present application when the lumbar support mode is in the middle lumbar support mode.

FIG. 34 is a schematic diagram showing the state of a vehicle massage seat with a mechanical massage mechanism according to yet another embodiment of the present application when the lumbar support mode is in the lower lumbar support mode.

FIG. 35 is a schematic diagram showing the state of a vehicle massage seat with a mechanical massage mechanism according to yet another embodiment of the present application when the massage mode is a cat's paw mode.

FIG. 36 is a schematic diagram showing the state of a vehicle massage seat with a mechanical massage mechanism according to yet another embodiment of the present application when the massage mode is the shoulder mode.

FIG. 37 is a schematic diagram showing the state of a vehicle massage seat with a mechanical massage mechanism according to yet another embodiment of the present application when the massage mode is a wave mode.

FIG38 is a schematic structural diagram of a mechanical massage mechanism in which a single motor drives dual massage heads in a vehicle-mounted massage seat having a mechanical massage mechanism according to yet another embodiment of the present application.

FIG39 is an exploded view of a mechanical massage mechanism in which a single motor drives dual massage heads in a vehicle-mounted massage seat having a mechanical massage mechanism according to yet another embodiment of the present application.

FIG. 40 is a schematic structural diagram of a mechanical massage mechanism in which a single motor drives a single massage head in a vehicle-mounted massage seat having a mechanical massage mechanism according to yet another embodiment of the present application.

41 is an exploded view of a mechanical massage mechanism in which a single motor drives a single massage head in a vehicle-mounted massage seat having a mechanical massage mechanism according to yet another embodiment of the present application.

Preferred embodiments of the present invention

The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

Massage mechanism for vehicle-mounted massage seat and vehicle seat including the same

As shown in FIGS. 1 to 12 , the present application discloses a massage mechanism for a vehicle-mounted massage seat, which includes a massage head 10, a torsion spring damping mechanism 20, a hollow base 30, an inner rotor assembly and a driving mechanism. The massage head 10 is connected to the inner rotor assembly through the torsion spring damping mechanism 20. The inner rotor assembly is installed in the base 30 so that the inner rotor assembly is connected to the slide groove 31 on the inner wall surface of the base 30, and the driving mechanism is connected to the inner rotor assembly. Here, the driving mechanism is mainly used to drive the inner rotor assembly so that the inner rotor assembly rotates along the slide groove 31, thereby realizing the rise or fall of the inner rotor assembly relative to the base 30.

Here, the inner rotor assembly may preferably include an inner rotor 40 and a bearing roller 50, wherein the bearing roller 50 is mounted on the outer wall of the inner rotor 40, and the inner rotor 40 is mounted in the base 30 so that the bearing roller 50 is inserted into the slide groove 31. The driving mechanism may preferably include a transmission rod 60 and a motor 70, wherein one end of the transmission rod 60 is inserted into the connection hole 41 at the bottom of the inner rotor 40, and the other end is connected to the motor 70. When the motor 70 drives the transmission rod 60 to rotate, the transmission rod 60 drives the bearing roller 50 to roll along the slide groove 31. The inner rotor 40 is driven to move. The motor 70 is a motor with a larger torque and a lower speed.

With such a structure, when the motor 70 drives the transmission rod 60 to rotate, the transmission rod 60 drives the bearing roller 50 to roll along the slide groove 31, thereby driving the inner rotor 40 to move.

Preferably, as shown in FIG. 6 and FIG. 7 , the slide groove 31 is designed as a continuous spiral structure, and the inner rotor 40 rises or falls in a spiral along the inner wall surface of the base 30 .

Furthermore, the torsion spring shock absorbing mechanism 20 includes a plurality of torsion springs 21, a plurality of mounting portions 11 are provided on the bottom end surface of the massage head 10, a plurality of connecting columns 42 are provided on the inner bottom surface of the inner rotor 40, one end of the torsion spring 21 is fixed to the corresponding mounting portion 11, and the other end is connected to the corresponding connecting column 42.

The mounting portion 11 here can preferably be a claw, vertically protruding along the bottom end surface of the massage head 10. The connecting column 42 can preferably be a buckle structure, vertically protruding along the inner bottom surface of the inner rotor 40.

Furthermore, the massage mechanism for the vehicle-mounted massage seat further includes an induction magnet 80 and a sensor 90. A second slot 44 is provided on the outer wall of the inner rotor 40, the induction magnet 80 is installed in the second slot 44, and the sensor 90 is installed on the outer wall of the base 30, and the sensor 90 and the induction magnet 80 are inductively coupled to each other.

The massage head 10 is assembled with the inner rotor 40 through the claws, and the torsion spring 21 is fixed on the protruding buckle of the inner rotor 40. The induction magnet is inserted into the groove of the inner rotor, and the above is the inner rotor assembly. The inner rotor assembly is placed in the base 30, and then the bearing roller 50 is inserted from the bottom to be inserted into the slide groove 31 on the inner wall of the base 30. The bearing roller 50 can thus roll along the inner groove slide groove 31, driving the inner rotor 40 to spiral up and down.

In the massage mechanism for the vehicle-mounted massage seat, a torsion spring damping mechanism is used internally (for example, a three-torsion spring damping mechanism is used as an example in this embodiment), which can provide all-round force feedback for the deformation caused by the massage head squeezing the back, so that the double massage convex points fit the back curve tightly, and cooperate with the lifting and lowering stroke to imitate the double finger pressure in the massage technique. The massage head and the inner rotor are limited by a buckle connection, and the torsion spring provides suspension support. The three-torsion spring damping mechanism not only provides sufficient support for massage, but also gives a comfortable suspension feeling when the passenger leans on the backrest.

The torsion spring damping mechanism can absorb the gap caused by vibration as much as possible and fit the curve of the human back. It has a simple structure, a small number of parts, and is easy to assemble. The simplified structure of the torsion spring damping mechanism makes it have a more efficient transmission rate, and the torque of the motor can be transmitted to the massage head more directly and efficiently.

As shown in FIG8 and FIG9, preferably, a first slot 43 is provided on the outer wall surface of the inner rotor 40. The bearing roller 50 here may preferably include a roller 51 and a ball bearing 52 connected as one body, wherein the ball bearing 52 is provided on the outer wall surface of the inner rotor 40. The bearing 52 is inserted into the first slot 43 , and the roller 51 protrudes outward along the outer wall surface of the inner rotor 40 .

The first slot 43 is preferably located at the lower part of the inner rotor. The length of the first slot 43 determines the stroke of the roller 51.

As shown in Fig. 10, the massage head 10 can be preferably designed as a double-convex point massage head. The massage head adopts a double-convex point design to better massage the back.

As shown in FIG11 , the upper portion of the transmission rod 60 is a cross-shaped structure, which is matched with the connection hole 41 at the bottom of the inner rotor 40 . The lower portion of the transmission rod 60 is a columnar structure, which is matched with the output port of the motor 70 .

A memory motor 70 is arranged behind the back plate and fixed by a shock-absorbing rubber pad and bolts, which can effectively reduce the vibration and abnormal noise caused by the rotation of the motor. The inner rotor 40 is driven by the transmission rod 60. The roller 51 in the inner rotor 40 is connected to the ball bearing 52 and can rotate freely, and move up and down along the slideway 31 inside the base 30 in a continuous spiral line, so as to realize the inner rotor rotation up/down. Through the mutual induction of the sensor 90 in the base 30 and the induction magnet 80 of the inner rotor 40, the memory electrical signal can be triggered to the ECU, and the function of adjusting the height stroke by controlling the number of motor rotations can be realized.

According to the above structural description, the massage mechanism for the vehicle massage seat introduced above has made the following improvements and innovations:

1. The double-convex point massage head can simulate the double finger pressure in professional massage techniques;

Second, the three-torsion spring shock absorption system can provide support and comfortable suspension for the backrest;

3. Closed slide height adjustment mechanism, adjust the height of the massage head to simulate the change of massage force;

4. Lightweight structure, simplified but strong structure, optimized motor transmission efficiency;

5. The massage head is directly driven by the synchronous shaft, which can greatly increase the transmission efficiency;

6. The motor and main drive gear are placed at the rear, which is conducive to the layout of the front foam cover and improves comfort.

The massage mechanism for the in-vehicle massage seat introduced above uses a single motor to drive a single massage head to optimize the transmission efficiency and can carry a larger load. The rear-mounted motor and transmission structure are conducive to the layout of the front foam and the face cover, optimizing comfort. The rear-mounted motor does not affect the lifting stroke of the massage structure. In theory, the massage stroke can continue to increase and improve the massage effect. Its structure is deeply optimized, and the modular mechanism is conducive to its arrangement in the backrests of various models.

As shown in FIG. 13 to FIG. 15 , the present application further discloses a vehicle seat, which includes the massage mechanism 100 for the vehicle-mounted massage seat as described above.

In the car seat, the whole set of massage mechanism can adopt two layouts: a single motor drives a single massage head, And a single motor drives dual massage heads.

Single motor drives single massage head (as shown in Figures 1 to 3): The motor 70 and the inner rotor 40 are directly driven by the flower-shaped shaft, not the gear, which greatly optimizes the transmission efficiency. In order to prevent the relative displacement between the transmission shaft and the inner rotor 40 during lifting and lowering, thereby generating radial friction and driving the transmission shaft to move upward, a stopper rod and grease are provided to prevent disengagement.

The inner rotor 40 can be raised and lowered by rotating, and the height of the massage head 10 can be adjusted in two levels, so that it can fit the back of the human body in a comprehensive and timely manner, and press at two points with the same strength. Simple structure, fewer parts, easy to assemble.

Here, a single motor drives a single massage head with high transmission efficiency and can withstand large torque. The rear-mounted motor and transmission structure are conducive to the front foam cover layout, bringing better comfort to the massage experience. The modular structure is suitable for most backrests. The arrangement of the massage mechanism can be selected according to the working conditions.

The massage mechanism for the vehicle massage seat and the vehicle seat including the massage mechanism have the following advantages:

1. The three-spring shock-absorbing system absorbs the gap caused by vibration as much as possible and fits the curve of the human back; the structure is simple, the number of parts is small, and it is easy to assemble;

Second, the simplified structure makes it have a more efficient transmission rate, and the torque of the motor can be transmitted to the massage head more directly and efficiently;

3. The transmission efficiency of a single motor driving a single massage head is optimized, and it can carry a larger load;

4. The rear-mounted motor and transmission structure are conducive to the layout of the front foam and the face cover, optimizing comfort;

5. The rear-mounted motor does not affect the lifting and lowering stroke of the massage structure. In theory, the massage stroke can continue to increase, improving the massage effect;

6. The structure is deeply optimized, and the modular structure is conducive to arrangement in the backrests of various models.

Massage mechanism for car seat and car seat including the same

As shown in Figures 16 to 27, the present application discloses a massage mechanism for a car seat, which includes a plurality of ball-pin type massage head assemblies 100a, a transmission mechanism and a drive mechanism. The ball-pin type massage head assemblies 100a are connected to the drive mechanism through the transmission mechanism, respectively. Each ball-pin type massage head assembly 100a includes a massage head 110a, an inner rotor assembly and a base 150a. The massage head 110a is rotationally connected to the inner rotor assembly. The inner rotor assembly is installed in the base 150a so that the inner rotor assembly is connected to the slide groove 151a on the inner wall surface of the base 150a. The drive mechanism is used to drive the transmission mechanism to drive the inner rotor assembly to rotate along the slide groove 151a, thereby realizing the inner rotor assembly relative to the base 150a. Rise or fall.

Here, the inner rotor assembly may preferably include an inner rotor 140a and a bearing roller 160a, the bearing roller 160a being mounted on the outer wall surface of the inner rotor 140a, and the inner rotor 140a being mounted in the base 150a so that the bearing roller 160a is inserted into the slide groove 151a.

Furthermore, each ball-pin type massage head assembly 100a may also preferably include a rotation connection assembly 120a and a torsion spring 130a, the massage head 110a is connected to the inner rotor 140a via the rotation connection assembly 120a, and the torsion spring 130a is installed between the massage head 110a and the inner rotor 140a.

The driving mechanism may preferably include a motor 500a and a transmission rod 170a, one end of the transmission rod 170a is inserted into the connection hole 141a at the bottom of the inner rotor 140a, and the other end is connected to the transmission mechanism, and the motor 500a is connected to the transmission mechanism. The motor 500a drives the transmission mechanism, and the transmission mechanism drives the transmission rod 170a to rotate, so that the bearing roller 160a rolls along the slide groove 151a, thereby driving the inner rotor 140a to move.

In addition, the transmission mechanism may preferably include an output gear 200a, a transmission gear assembly 300a and a plurality of input gears 400a, each of which is mounted at the input end of the corresponding ball-pin type massage head assembly 100a, and the input gears 400a are respectively meshed with the transmission gear assembly 300a, and the output gear 200a is connected to the output end of the motor 500a, and the output gear 200a is meshed with the transmission gear assembly 300a. The motor 500a drives the output gear 200a, drives the transmission gear assembly 300a, and then transmits the power to the input gear 400a, thereby driving the ball-pin type massage head assembly 100a to move.

Here, the transmission gear assembly 300a may preferably include a first transmission gear 310a, a connecting key 320a and a second transmission gear 330a. The connecting key 320a sequentially passes through the first transmission gear 310a and the second transmission gear 330a, locking the first transmission gear 310a and the second transmission gear 330a up and down, and the diameter of the first transmission gear 310a is greater than the diameter of the second transmission gear 330a. The input gear 400a is meshed with the first transmission gear 310a, and the output gear 200a is meshed with the second transmission gear 330a.

Here, as shown in Figures 23 and 24, the massage head 110a may preferably be a double-convex point massage head. The massage head 110a adopts a double-convex point design to better massage the back.

The bearing roller 160a is mounted on the outer wall of the inner rotor 140a, and a slide groove 151a is provided on the inner wall of the base 150a. The inner rotor 140a is mounted in the base 150a so that the bearing roller 160a is inserted into the slide groove 151a, one end of the transmission rod 170a is inserted into the connection hole 141a at the bottom of the inner rotor 140a, and the other end is connected to the input gear 200a. When the input gear 200a drives the transmission rod 170a to rotate, the shaft The roller shaft 160a rolls along the slide groove 151a, thereby driving the inner rotor 140a to move.

A ball pin structure is used between the massage head 110a and the inner rotor 140a, and a 180° rotation effect can be achieved with a large torsion spring.

Here, the slide groove 151a is preferably a continuous spiral structure, and the inner rotor 140a rises or falls in a spiral along the inner wall surface of the base 150a.

As shown in Figures 25 and 26, further preferably, a boss 142a is provided in the inner rotor 140a, so that a circle of mounting groove 143a is formed between the boss 142a and the inner wall surface of the inner rotor 140a, and the massage head 110a is connected to the boss 142a through the rotating connecting assembly 120a, and one end of the torsion spring 130a is installed in the mounting groove 143a, and the other end is connected to the bottom end surface of the massage head 110a.

In addition, a circle of raised portions 111 a is provided on the bottom end surface of the massage head 110 a , and the other end of the torsion spring 130 a is connected to the raised portion 111 a .

As shown in FIG. 27 , the rotating connection assembly 120a may preferably include at least one group of rotating connections, each group of rotating connections includes a plurality of connecting plates 121a and a plurality of connecting pins 122a, and two adjacent connecting plates 121a are rotationally connected via the connecting pins 122a.

For example, four connecting plates 121a are used to transmit the rotational kinetic energy from the inner rotor 140a to drive the rotation of the massage head 110a, and can also adjust the massage effect according to the back curve. When the massage head fits an uneven surface, the double convex point massage head 110a can fit the surface tightly.

Furthermore, a first positioning portion 144a is provided on the boss 142a, and a second positioning portion 112a is provided on the bottom end surface of the massage head 110a, and one end of the rotating connector 120a is connected to the first positioning portion 144a, and the other end is connected to the second positioning portion 112a. The claw structure formed by the four connecting plates 121a meets the fatigue requirements and can ensure that it will not break due to fatigue during long-term operation.

Furthermore, a first slot 145a is provided on the outer wall surface of the inner rotor 140a, and the bearing roller 160a includes a roller 161a and a ball bearing 162a connected as one body, the ball bearing 162a is inserted in the first slot 145a, and the roller 161a protrudes outward along the outer wall surface of the inner rotor 140a. Here, the first slot 145a is preferably located at the lower part of the inner rotor 140a. The length of the first slot 145a determines the stroke of the roller 161a.

In addition, the ball-pin type massage head assembly 100a may also preferably include an induction magnet 180a and a sensor 190a. A second slot 146a is provided on the outer wall of the inner rotor 140a. The induction magnet 180a is installed in the second slot 146a. The sensor 190a is installed on the outer wall of the base 150a. Mutual induction with the induction magnet 180a.

In the massage mechanism, the massage head 110a and the inner rotor 140a are connected through a plurality of connecting plates 121a (e.g., four connecting plates) and connecting pins and ball pins, and a large torsion spring is installed between them to realize the suspension and shock absorption function. The induction magnet 180a is inserted into the groove of the inner rotor 140a, and the above is the inner rotor assembly. The inner rotor assembly is placed in the base 150a, and then the roller 161a is inserted from the bottom so that it is inserted into the slide groove 151a on the inner wall of the base 150a. The roller 161a can thus roll along the inner groove slide groove 151a, driving the inner rotor 140a to rise and fall in a spiral.

A memory motor 500a is arranged behind the back plate and fixed by a shock-absorbing rubber pad and bolts, which can effectively reduce the vibration and abnormal noise caused by the rotation of the motor. The inner rotor 140a is driven by the transmission rod 170a. The roller 161a in the inner rotor 140a is connected to the ball bearing 162a and can rotate freely, and move up and down along the slide 151a on the inner side of the base 150a in a continuous spiral line, thereby realizing the rotation up/down of the inner rotor 140a. Through the mutual induction of the sensor 190a in the base 150a and the induction magnet 180a on the inner rotor 140a, the memory electrical signal can be triggered to the ECU, and the function of adjusting the height stroke by controlling the number of motor rotations can be realized.

According to the above structural description, the massage mechanism for the car seat of this application has made the following improvements and innovations:

1. The double-convex point massage head can simulate the double finger pressure in professional massage techniques;

Second, the ball pin structure and large torsion spring can realize the back adaptive adjustment function;

3. Use four connecting plates to form a rotating connection assembly to transmit rotating power;

4. Closed slide height adjustment mechanism, adjust the height of the massage head to simulate the change of massage force;

5. The motor and main transmission gear are placed at the rear, which is conducive to the layout of the front foam cover and improves comfort;

6. The massage head can rotate 180 degrees adaptively to fit the back line.

The present application is used for the massage mechanism of the car seat. The ball pin structure adopted is more comfortable than other structures, and can imitate the double finger pressure in professional massage techniques to achieve a deep and shallow pressing effect. The massage head rises vertically to the backrest and rotates softly at the same time. The simplified structure makes it have a more efficient transmission rate, and the torque of the motor can be transmitted to the massage head more directly and efficiently. The rear-mounted motor and transmission structure are conducive to the arrangement of the front foaming and the face cover, and optimize the comfort. The rear-mounted motor does not affect the lifting and lowering stroke of the massage structure. In theory, the massage stroke can continue to increase to improve the massage effect.

As shown in FIG. 28 to FIG. 30 , the present application also provides a car seat, which includes the massage mechanism 10 a for a car seat as described above.

In the car seat, the whole set of massage mechanism can adopt a structure in which a single motor drives two massage heads, and its specific principle is as follows:

The motor 500a drives the output gear 200a, thereby driving the transmission gear assembly 300a. The transmission gear assembly 300a is divided into two gears, one large and one small, which are locked by a flower-shaped connecting key 320a. The second transmission gear 330a (upper gear) receives the power transmitted by the first transmission gear 310a (lower gear), and then transmits it to the input gear 400a of the massage head 110a, thereby driving the massage head 110a.

The ratio of the number of teeth of the output gear 200a of the motor 500a to the number of teeth of the first transmission gear 310a is equal to the ratio of the number of teeth of the input gear 400a of the massage head 110a to the number of teeth of the second transmission gear 330a. Therefore, the rotation speed of the motor 500a is still equal to the rotation speed of the massage head 110a, and the torque is evenly distributed because there are two input ends.

The inner rotor 140a can be raised and lowered by rotating, and the height of the massage head 110a can be adjusted in two levels, which can adapt to the back curve of the human body and is more comfortable than other structures.

Here, the transmission efficiency of the single motor driving the dual massage heads is high and can withstand large torque. The rear-mounted motor and transmission structure are conducive to the layout of the front foam cover, bringing better comfort to the massage experience. The modular structure is suitable for most backrests. The arrangement of the massage mechanism can be selected according to the working conditions.

In summary, the massage mechanism for a car seat and the car seat including the same in the present application have the following advantages:

1. The massage head can rotate 180 degrees adaptively to fit the back line;

Second, the ball pin structure is more comfortable than other structures, and can imitate the double finger pressure in professional massage techniques to achieve a deep and shallow pressing effect;

3. The massage head rises vertically to the backrest and rotates to apply gentle pressure;

Fourth, the simplified structure can achieve a more efficient transmission rate, and the torque of the motor can be transmitted to the massage head more directly and efficiently;

5. The rear-mounted motor and transmission structure are conducive to the layout of the front foam and the face cover, optimizing comfort;

6. The rear-mounted motor does not affect the lifting and lowering stroke of the massage structure. In theory, the massage stroke can continue to increase to improve the massage effect.

Car massage seat with mechanical massage mechanism

As shown in FIG31 , the present application discloses a vehicle-mounted massage seat with a mechanical massage mechanism, which includes a seat back 10 b, a plurality of mechanical massage mechanisms 20 b and a control system. The mechanical massage mechanisms 20 b are installed on the seat back 10 b in a multi-row and multi-column form, and the mechanical massage mechanisms 20 b are connected to the control system, and the control system controls the mechanical massage mechanisms 20 b to realize a plurality of lumbar support modes and a plurality of massage modes.

Preferably, at least one row of mechanical massage mechanisms 20b uses a single motor to drive dual massage heads, and at least one row of mechanical massage mechanisms 20b uses a single motor to drive a single massage head.

Furthermore, the vehicle-mounted massage seat includes at least three rows of mechanical massage mechanisms 20b, wherein at least one row of the mechanical massage mechanisms located at the upper part (for example, the first row of mechanical massage mechanisms 21b) uses a single motor to drive dual massage heads, and at least two rows of the mechanical massage mechanisms located in the middle and lower parts (for example, the second row of mechanical massage mechanisms 22b and the third row of mechanical massage mechanisms 23b) use a single motor to drive a single massage head.

As shown in FIG. 32 , preferably, the lumbar support mode may be selected to include an upper lumbar support mode, in which the mechanical massage mechanism located in the middle (eg, the second row mechanical massage mechanism 23 b ) rises to the highest stroke.

As shown in FIG. 33 , the lumbar support mode may be selected to include a middle lumbar support mode, in which the mechanical massage mechanisms located in the middle and lower parts (eg, the second row mechanical massage mechanism 22b and the third row mechanical massage mechanism 23b) are both raised to the highest stroke.

As shown in FIG. 34 , the lumbar support mode may be selected to include a lower lumbar support mode, in which the mechanical massage mechanism located at the lower portion (eg, the third row mechanical massage mechanism 23 b ) rises to the highest stroke.

As shown in Figure 35, the massage mode can be selected to include a cat's paw mode. In the cat's paw mode, the massage head of the mechanical massage mechanism located at the bottom (for example, the third row mechanical massage mechanism 23b) rotates 72° from left to right, and then switches to the massage head of the mechanical massage mechanism located in the middle (for example, the second row mechanical massage mechanism 22b) which rotates 72° from left to right, and finally passes to the massage head of the mechanical massage mechanism located at the top (for example, the first row mechanical massage mechanism 21b) which rotates 72°, and the cycle continues.

As shown in Figure 36, the massage mode includes a shoulder mode. In the shoulder mode, the massage head of the mechanical massage mechanism located in the middle (for example, the second row mechanical massage mechanism 22b) rotates 120° from left to right, and then the massage head of the mechanical massage mechanism located in the upper part (for example, the first row mechanical massage mechanism 21b) rotates 120° each, and the cycle continues.

As shown in FIG. 37 , the massage mode includes a wave mode. In the wave mode, the massage heads of the mechanical massage mechanism located at the bottom (e.g., the third row mechanical massage mechanism 23b) each rotate 60° and transmit the massage to the mechanical massage mechanism located in the middle (e.g., the second row mechanical massage mechanism 22b). The massage heads of the first row of mechanical massage mechanisms 21a rotate 60° each, and then the massage heads of the mechanical massage mechanisms located at the top (such as the first row of mechanical massage mechanisms 21b) rotate 60° each, and the cycle continues.

In addition, the massage mode includes a waist mode. In the waist mode, the massage head of the mechanical massage mechanism located at the bottom (such as the third row mechanical massage mechanism 23b) rotates 180 degrees from left to right in sequence.

The rotation angle of the massage head of the mechanical massage mechanism is memorized by the Hall motor and stored in the electronic control unit of the control system. The start time and the end time are determined by the written code and stored in the electronic control unit. The electronic control unit (ECU) integrates a wireless network (WIFI) module and transmits information with the control device through the wireless network (WIFI) communication protocol.

The present application provides a vehicle-mounted massage seat with a mechanical massage mechanism, and provides the functions and modes of the vehicle-mounted mechanical massage mechanism, so that it can operate normally, and the lumbar support function and massage function can be controlled by an external device.

The massage head controlled by the motor can realize forward and reverse rotation, raising and lowering, so there are many permutations and combinations. The functional modes that the mechanical massage mechanism can achieve are not limited to the three lumbar support modes and four massage modes. The above lumbar support modes and massage modes are only examples. The later scalability is very high, and the mode can be updated through OTA (Over the Air Download Technology).

As shown in FIG. 38 and FIG. 39 , in the vehicle massage seat with a mechanical massage mechanism of the present application, the single motor driven dual massage head structure includes: a plurality of ball pin massage head assemblies 100b, an output gear 200b, a transmission gear assembly 300b, a plurality of input gears 400b and a motor 500b, each input gear 200b is installed at the input end of the corresponding ball pin massage head assembly 100b, the input gear 400b is respectively meshed with the transmission gear assembly 300b, the output gear 200b is connected to the output end of the motor 500b, and the output gear 200b is meshed with the transmission gear assembly 300b. The motor 500b drives the output gear 200b, drives the transmission gear assembly 300b, and then transmits the power to the input gear 400b, thereby driving the ball pin massage head assembly 100b to move.

Here, the transmission gear assembly 300b may preferably include a first transmission gear 310b, a connecting key 320b and a second transmission gear 330b. The connecting key 320b sequentially passes through the first transmission gear 310b and the second transmission gear 330b, locking the first transmission gear 310b and the second transmission gear 330b up and down, and the diameter of the first transmission gear 310b is larger than the diameter of the second transmission gear 330b. The input gear 400b is meshed with the first transmission gear 310b, and the output gear 200b is meshed with the second transmission gear 330b.

In this embodiment, each ball-pin type massage head assembly 100b may preferably include a massage head 110b, a rotary The massage head 110b is connected to the inner rotor 140b by the rotating connection assembly 120b, the torsion spring 130b, the inner rotor 140b, the base 150b, the bearing roller 160b and the transmission rod 170b. The massage head 110b is connected to the inner rotor 140b by the rotating connection assembly 120b, and the torsion spring 130b is installed between the massage head 110b and the inner rotor 140b. The massage head 110b can preferably be a double-convex point massage head. The massage head 110b adopts a double-convex point design to better massage the back.

The bearing roller 160b is mounted on the outer wall of the inner rotor 140b, and a slide groove 151b is provided on the inner wall of the base 150b. The inner rotor 140b is mounted in the base 150b so that the bearing roller 160b is inserted into the slide groove 151b, one end of the transmission rod 170b is inserted into the connecting hole at the bottom of the inner rotor 140b, and the other end is connected to the input gear 200b. When the input gear 200b drives the transmission rod 170b to rotate, the bearing roller 160b rolls along the slide groove 151b, thereby driving the inner rotor 140b to move. A ball pin structure is used between the massage head 110b and the inner rotor 140b, and a 180° rotation effect can be achieved with a large torsion spring. Here, the slide groove 151b is a continuous spiral structure, and the inner rotor 140b rises or falls in a spiral along the inner wall of the base 150b.

In addition, the ball pin type massage head assembly 100b may also preferably include an induction magnet 180b and a sensor 190b. A second slot is provided on the outer wall surface of the inner rotor 140b, and the induction magnet 180b is installed in the second slot. The sensor 190b is installed on the outer wall surface of the base 150b, and the sensor 190b and the induction magnet 180b are mutually inductive.

In the structure of a single motor driving two massage heads adopted here, the massage head 110b and the inner rotor 140b are connected with the connecting pin and the ball pin through multiple connecting plates 121b (for example, four connecting plates), and the suspension and shock absorption function is realized by assembling a large torsion spring. The induction magnet 180b is inserted into the groove of the inner rotor 140b, and the above is the inner rotor assembly. The inner rotor assembly is placed in the base 150b, and then the roller 161b is inserted from the bottom so that it is inserted into the slide groove 151b on the inner wall of the base 150b. The roller 161b can thus roll along the inner groove slide groove 151b, driving the inner rotor 140b to spirally rise and fall.

As shown in Figures 40 and 41, in the vehicle massage seat with a mechanical massage mechanism of the present application, the single motor driven single massage head structure includes: a massage head 30b, a torsion spring shock absorbing mechanism 40b, a hollow base 50b, an inner rotor 60b, a bearing roller 70b, a transmission rod 80b and a motor 90b. Among them, the massage head 30b is connected to the inner rotor 60b through the torsion spring shock absorbing mechanism 40b, the bearing roller 70b is installed on the outer wall surface of the inner rotor 60b, and a slide groove 51b is provided on the inner wall surface of the base 50b. The inner rotor 60b is installed in the base 50b, so that the bearing roller 70b is inserted into the slide groove 51b, one end of the transmission rod 80b is inserted into the connecting hole 61b at the bottom of the inner rotor 60b, and the other end is connected to the motor 90b. The motor 90b adopts a larger torque and low speed motor. Here, the slide groove 51b is designed as a continuous spiral structure, and the inner rotor 60b is along the base 30b. The inner wall surface spirally rises or falls. The massage head 30b can be preferably designed as a double-convex point massage head. The massage head adopts a double-convex point design to better massage the back.

With such a structure, when the motor 90b drives the transmission rod 80b to rotate, the transmission rod 80b drives the bearing roller 70b to roll along the slide groove 51b, thereby driving the inner rotor 60b to move.

Furthermore, the single motor driving single massage head structure also includes an induction magnet 81b and a sensor 82b. A second slot 61b is provided on the outer wall of the inner rotor 60b, the induction magnet 81b is installed in the second slot 83b, and the sensor 82b is installed on the outer wall of the base 50b, and the sensor 82b and the induction magnet 81b are mutually inductive.

Here, in the structure of a single motor driving a single massage head, a torsion spring damping mechanism is used inside (for example, a three-torsion spring damping mechanism is used as an example in this embodiment), which can provide all-round force feedback for the deformation caused by the massage head squeezing the back, so that the double massage convex points fit the back curve tightly, and with the lifting stroke, imitate the double finger pressure in the massage technique. The massage head and the inner rotor are limited by a buckle connection, and the torsion spring provides suspension support. The three-torsion spring damping mechanism not only provides sufficient support for massage, but also gives a comfortable suspension feeling when the passenger leans on the backrest.

The torsion spring damping mechanism can absorb the gap caused by vibration as much as possible and fit the curve of the human back. It has a simple structure, a small number of parts, and is easy to assemble. The simplified structure of the torsion spring damping mechanism makes it have a more efficient transmission rate, and the torque of the motor can be transmitted to the massage head more directly and efficiently.

In summary, the present application has a car massage seat with a mechanical massage mechanism, and the motor-controlled massage head can realize forward and reverse rotation, raising and lowering, so there are many permutations and combinations. The functional modes that can be achieved by these combinations are not limited to three lumbar support modes and four massage modes. The later scalability is very high, and the mode can be updated through OTA.

Finally, it should be noted that the above is only a preferred example of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims (38)

A massage mechanism for a vehicle-mounted massage seat, characterized in that the massage mechanism includes a massage head, a torsion spring shock-absorbing mechanism, a hollow base, an inner rotor assembly and a driving mechanism, wherein the massage head is connected to the inner rotor assembly through the torsion spring shock-absorbing mechanism; the inner rotor assembly is installed in the base so that the inner rotor assembly is connected to a slide groove on the inner wall surface of the base, and the driving mechanism is connected to the inner rotor assembly; the driving mechanism is used to drive the inner rotor assembly so that the inner rotor assembly rotates along the slide groove, thereby realizing the rise or fall of the inner rotor assembly relative to the base. The massage mechanism for a vehicle-mounted massage seat as described in claim 1 is characterized in that the inner rotor assembly includes an inner rotor and a bearing roller, the bearing roller is installed on the outer wall surface of the inner rotor, and the bearing roller is inserted into the slide groove. The massage mechanism for a vehicle-mounted massage seat as described in claim 2 is characterized in that the driving 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; when the motor drives the transmission rod to rotate, the transmission rod drives the bearing roller to roll along the slide groove, thereby driving the inner rotor to move. The massage mechanism for a vehicle-mounted massage seat as described in claim 3 is characterized in that the slide groove is a continuous spiral structure, and the inner rotor rises or descends in a spiral along the inner wall surface of the base. The massage mechanism for a vehicle-mounted massage seat as described in claim 3 is characterized in that the torsion spring shock-absorbing mechanism includes a plurality of torsion springs, a plurality of mounting portions are provided on the bottom end surface of the massage head, a plurality of connecting columns are provided on the inner bottom surface of the inner rotor, one end of the torsion spring is fixed to the corresponding mounting portion, and the other end is connected to the corresponding connecting column. The massage mechanism for a vehicle-mounted massage seat as described in claim 5 is characterized in that the mounting portion is a claw that vertically protrudes along the bottom end surface of the massage head; and the connecting column is a snap-fit structure that vertically protrudes along the inner bottom surface of the inner rotor. The massage mechanism for a vehicle-mounted massage seat as described in claim 3 is characterized in that a first groove is opened on the outer wall surface of the inner rotor, the bearing roller includes a roller and a ball bearing connected as one body, the ball bearing is inserted in the first groove, and the roller protrudes outward along the outer wall surface of the inner rotor. The massage mechanism for a vehicle-mounted massage seat as described in claim 7 is characterized in that the first slot is located at the lower part of the inner rotor. The massage mechanism for a vehicle-mounted massage seat according to claim 3, characterized in that the massage machine The structure also includes an induction magnet and a sensor. A second slot is provided on the outer wall surface of the inner rotor. The induction magnet is installed in the second slot. The sensor is installed on the outer wall surface of the base. The sensor and the induction magnet are mutually inductively coupled. The massage mechanism for a vehicle-mounted massage seat as described in claim 3 is characterized in that the upper part of the transmission rod is a cross-shaped structure, which cooperates with the connecting hole at the bottom of the inner rotor; the lower part of the transmission rod is a columnar structure, which cooperates with the output port of the motor. The massage mechanism for a vehicle-mounted massage seat as described in claim 3 is characterized in that the massage head is a double-convex point massage head. A car seat, characterized in that the car seat comprises a massage mechanism for a car massage seat as described in any one of claims 1-11. A massage mechanism for a car seat, characterized in that the massage mechanism includes a plurality of ball pin type massage head assemblies, a transmission mechanism and a drive mechanism, wherein the ball pin type massage head assemblies are connected to the drive mechanism via the transmission mechanism respectively; each of the ball pin type massage head assemblies includes a massage head, an inner rotor assembly and a base, wherein the massage head is rotationally connected to the inner rotor assembly, and the inner rotor assembly is installed in the base so that the inner rotor assembly is connected to a slide groove on the inner wall surface of the base; the drive mechanism is used to drive the transmission mechanism to drive the inner rotor assembly to rotate along the slide groove, thereby realizing the rising or falling of the inner rotor assembly relative to the base. The massage mechanism for a car seat as described in claim 13 is characterized in that the inner rotor assembly includes an inner rotor and a bearing roller, the bearing roller is mounted on the outer wall surface of the inner rotor, and the inner rotor is mounted in the base so that the bearing roller is inserted into the slide groove. The massage mechanism for a car seat as described in claim 14 is characterized in that each of the ball-pin type massage head components further includes a rotating connection component and a torsion spring, the massage head is connected to the inner rotor via the rotating connection component, and the torsion spring is installed between the massage head and the inner rotor. The massage mechanism for a car seat as described in claim 15 is characterized in that the driving mechanism includes a motor and a transmission rod, 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 transmission mechanism, and the motor is connected to the transmission mechanism; the motor drives the transmission mechanism, and the transmission mechanism drives the transmission rod to rotate, so that the bearing roller rolls along the slide groove, thereby driving the inner rotor to move. The massage mechanism for a car seat according to claim 16, wherein the transmission mechanism It includes an output gear, a transmission gear assembly and multiple input gears, each of the input gears is installed at the input end of the corresponding ball-pin type massage head assembly, the input gears are respectively meshed with the transmission gear assemblies, the output gear is connected to the output end of the motor, and the output gear is meshed with the transmission gear assembly; the motor drives the output gear, drives the transmission gear assembly, and then transmits power to the input gear, thereby driving the ball-pin type massage head assembly to move. The massage mechanism for a car seat as described in claim 17 is characterized in that the transmission gear assembly includes a first transmission gear, a connecting key and a second transmission gear, the connecting key passes through the first transmission gear and the second transmission gear in sequence to lock the first transmission gear and the second transmission gear up and down, and the diameter of the first transmission gear is larger than the diameter of the second transmission gear; the input gear is meshed with the first transmission gear, and the output gear is meshed with the second transmission gear. The massage mechanism for a car seat as described in claim 15 is characterized in that a boss is provided in the inner rotor, a circle of mounting groove is formed between the boss and the inner wall surface of the inner rotor, the massage head is connected to the boss through the rotating connection assembly, one end of the torsion spring is installed in the mounting groove, and the other end is connected to the bottom end surface of the massage head. The massage mechanism for a car seat as described in claim 19 is characterized in that a circle of raised portions is provided on the bottom end surface of the massage head, and the other end of the torsion spring is connected to the raised portion. The massage mechanism for a car seat as described in claim 19 is characterized in that the rotating connection assembly includes at least one group of rotating connecting parts, each group of rotating connecting parts includes a plurality of connecting plates and a plurality of connecting pins, and two adjacent connecting plates are rotatably connected through the connecting pins; a first positioning portion is provided on the boss, and a second positioning portion is provided on the bottom end surface of the massage head, one end of the rotating connecting part is connected to the first positioning portion, and the other end is connected to the second positioning portion. The massage mechanism for a car seat as described in claim 15 is characterized in that the slide groove is a continuous spiral structure, and the inner rotor rises or descends in a spiral along the inner wall surface of the base. The massage mechanism for a car seat as described in claim 15 is characterized in that a first groove is opened on the outer wall surface of the inner rotor, the bearing roller includes a roller and a ball bearing connected as one body, the ball bearing is inserted in the first groove, and the roller protrudes outward along the outer wall surface of the inner rotor. The massage mechanism for a car seat as described in claim 23 is characterized in that the first groove is located at the lower part of the inner rotor. The massage mechanism for a car seat according to claim 15, characterized in that the ball pin type massage The friction head assembly also includes an induction magnet and a sensor. A second slot is provided on the outer wall of the inner rotor. The induction magnet is installed in the second slot. The sensor is installed on the outer wall of the base. The sensor and the induction magnet are mutually inductively coupled. The massage mechanism for a car seat as described in claim 15 is characterized in that the massage head is a double-convex point massage head. A car seat, characterized in that the car seat comprises a massage mechanism for a car seat as described in any one of claims 13-26. A vehicle-mounted massage seat with a mechanical massage mechanism, characterized in that the vehicle-mounted massage seat includes a seat back, multiple mechanical massage mechanisms and a control system, the mechanical massage mechanisms are installed on the seat back in multiple rows and columns, the mechanical massage mechanisms are connected to the control system, and the control system controls the mechanical massage mechanisms to achieve multiple lumbar support modes and multiple massage modes. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 28 is characterized in that at least one row of the mechanical massage mechanisms uses a single motor to drive dual massage heads, and at least one row of the mechanical massage mechanisms uses a single motor to drive a single massage head. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 29 is characterized in that the vehicle-mounted massage seat includes at least three rows of the mechanical massage mechanisms, wherein at least one row of the mechanical massage mechanisms located at the upper part uses a single motor to drive double massage heads, and at least two rows of the mechanical massage mechanisms located in the middle and lower parts use a single motor to drive a single massage head. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 30 is characterized in that the lumbar support mode includes an upper lumbar support mode, in which the mechanical massage mechanism located in the middle rises to a maximum stroke. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 30 is characterized in that the lumbar support mode includes a middle lumbar support mode, in which the mechanical massage mechanisms located in the middle and lower parts are both raised to the highest stroke. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 30 is characterized in that the lumbar support mode includes a lower lumbar support mode, in which the mechanical massage mechanism located at the bottom rises to a maximum stroke. The vehicle-mounted massage seat with a mechanical massage mechanism as claimed in claim 30, characterized in that the massage mode includes a cat's paw mode, in which the mechanical massage mechanism located at the bottom The massage head rotates 72° from left to right, then switches to the massage head of the mechanical massage mechanism located in the middle, which rotates 72° from left to right, and finally transfers to the massage head of the mechanical massage mechanism located at the top, which rotates 72°, and the cycle continues. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 30 is characterized in that the massage mode includes a shoulder mode. In the shoulder mode, the massage head of the mechanical massage mechanism located in the middle rotates 120° from left to right, and then the massage head of the mechanical massage mechanism located in the upper part rotates 120° each, and the cycle continues in sequence. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 30 is characterized in that the massage mode includes a wave mode. In the wave mode, the massage heads of the mechanical massage mechanism located at the bottom rotate 60° each, which is transmitted to the massage heads of the mechanical massage mechanism located in the middle to rotate 60° each, and then transmitted to the massage heads of the mechanical massage mechanism located at the top to rotate 60° each, and the cycle is repeated in sequence. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 30 is characterized in that the massage mode includes a waist mode, in which the massage head of the mechanical massage mechanism located at the bottom rotates 180° from left to right in sequence. The vehicle-mounted massage seat with a mechanical massage mechanism as described in claim 30 is characterized in that the rotation angle of the massage head of the mechanical massage mechanism is memorized by a Hall motor and stored in the electronic control unit of the control system, and the start time and the end time are determined by writing a code and stored in the electronic control unit.