CN207218427U - A kind of new automobile waist support motor - Google Patents

Abstract

A kind of new automobile waist support motor is the utility model is related to, including：Shell sub-unit, rotor sub-unit, inner end cap sub-unit, outer end cap sub-unit；The inner end cap sub-unit is arranged on rotor sub-unit, and the rotor sub-unit is arranged in shell sub-unit；The outer end cap sub-unit is arranged on one end of shell sub-unit；The rotor sub-unit includes：Armature spindle, the silicon steel sheet stacked group for being wound with enamel-covered wire, copper sheathing, bakelite pad, corrugated gasket, Teflon pad, ring varistor, commutator；The inner end cap sub-unit includes inner end cap, ball bearing, plum blossom fork, the circuit board with PTC thermal protectors, two power pins, left inductance, two carbon brush inserted sheets, two carbon brush, right inductance, ground connection contact pin, two carbon brush holders and two torsion springs.The motor volume is small, and low voltage starting performance is good, and security performance is high, service life length.

Description

A new type of lumbar support motor for automobiles

technical field

The utility model belongs to the field of automobile parts, in particular to a novel waist support motor for automobiles.

Background technique

The adjustment device used for the lumbar support on the car seat is generally divided into two types: electric and manual according to the configuration requirements of users. Among them, the manual form requires manual adjustment, the adjustment process is time-consuming and laborious, and it cannot be adjusted to any position like the electric one. Electric adjustment devices currently on the market mainly use a motor to drive a screw transmission mechanism to enable the driver or passenger to achieve a comfortable seating position. However, almost all motors on the market face problems such as large diameter, large volume, heavy weight, poor safety, high noise, poor low-voltage starting performance, short service life, and high cost in order to ensure sufficient torque.

Contents of the invention

The purpose of this utility model is to solve the above problems and provide a new type of lumbar support motor for automobiles. The motor has large output torque, small volume, good low-voltage starting performance, high safety and long service life.

In order to achieve the above object, the utility model provides a novel automobile lumbar support motor, comprising: a housing subassembly, a rotor subassembly, an inner end cover subassembly, and an outer end cover subassembly; the inner end cover subassembly The rotor sub-assembly is installed on the rotor sub-assembly, and the rotor sub-assembly is installed in the shell sub-assembly; the outer end cover sub-assembly is installed on one end of the shell sub-assembly;

Wherein, the inner end cover subassembly includes an inner end cover, a ball bearing, a plum blossom fork, a circuit board with a PTC thermal protector, two power supply pins, a left inductor, two carbon brush inserts, two carbon Brush, right inductance, grounding pin, two carbon brush holders and two torsion springs; wherein, the inner end cover has two cavities separated from the inside and the outside, and the center position between the two cavities passes through the plum blossom A ball bearing is installed on the fork; the circuit board with the PTC thermal protector and the two power supply pins are arranged on the outer cavity; the left inductor, two carbon brush inserts, two carbon brushes, the right inductor, The ground pin, two carbon brush holders and two torsion springs are set on the inner cavity; the circuit board is made of SMD electronic components, the positive and negative poles of the power pin are used for external power supply, and one of the power pins is connected to the Circuit board connection, the printed circuit on the circuit board is connected to the left inductance, the left inductance is connected to the PTC thermal protector on the circuit board, the PTC thermal protector is connected to a carbon brush insert, and the carbon brush insert Connect with a carbon brush, the carbon brush is connected to one end of the commutator on the rotor sub-assembly, the commutator is connected to one end of the enameled wire on the rotor sub-assembly, the other end of the enameled wire is connected to the other end of the commutator, and the commutator Then connect with the carbon brush on the other side, the carbon brush is connected with another carbon brush insert, the carbon brush insert is connected with the right inductance, and the right inductance is connected with another power supply pin, so that the whole circuit is connected; The grounding pin is connected to the sub-assembly of the shell to protect the circuit; the two carbon brush holders are respectively arranged on the inner end cover, and the two carbon brushes are respectively installed in the carbon brush holder through torsion springs , so that the carbon brush is in close contact with the commutator on the rotor subassembly.

As a preference of the present utility model, the rotor sub-assembly includes: rotor shaft, silicon steel sheet stacked with enameled wire, copper sleeve, bakelite gasket, wave gasket, Teflon gasket, ring varistor , commutator; the silicon steel sheet stacked with enameled wires is arranged on the rotor shaft, and one end of the rotor shaft is sequentially installed with copper sleeves, bakelite gaskets, wave gaskets, Teflon gaskets, and the rotor The other end of the shaft is sequentially installed with annular varistors, commutators, Bakelite gaskets, and Teflon gaskets from the inside to the outside; the rotor shaft can also be processed with a knurled area, and the knurled area is used for Injection-moulded worm, integrated with the rotor shaft through the knurled area.

As a further preference of the present utility model, the housing subassembly includes: a housing, two magnetic tiles, two support springs, and a cylindrical bearing; the cylindrical bearing is installed at one end of the housing, and the two magnetic tiles are respectively connected The spring is mounted on the inner side wall of the housing.

As a further preference of the present utility model, the outer end cover subassembly includes: an outer end cover and a gasket, and the gasket is arranged in the cavity of the outer end cover, which is in close contact with one end of the rotor shaft to improve low-voltage start-up performance.

The utility model has the following advantages and effects:

1. The inner end cover of the lumbar support motor of the present invention has two cavities separated inside and outside, a ball bearing is arranged in the center between the two cavities, the circuit board is arranged on the outer cavity, and other components are arranged In the inner cavity, when the rotor sub-assembly is inserted into the ball bearing and assembled, the inner and outer cavities on the inner end cover are separated to ensure that the carbon powder cannot splash and stick when the carbon brush and the commutator rotate and rub to the circuit board, avoiding the occurrence of circuit board short circuit and prolonging the service life of the motor.

2. The rotor shaft of the rotor sub-assembly of the lumbar support motor of the present invention is provided with a wave gasket, and a gasket is provided on the outer end cover sub-assembly, which can improve the low-voltage starting performance of the motor; at the same time, through the rotor sub-assembly A ring-shaped piezoresistor is installed on the finished rotor shaft to further improve the circuit, solve the problem of sparks flying, and make the motor safer and safer to use.

3. The lumbar support motor of the utility model can directly transmit the torque provided by the rotation of the motor to the screw drive device, which can not only reduce the energy loss caused by multi-stage transmission, but also simplify the structure and facilitate installation.

4. The utility model integrates the connection circuit on the circuit board, and the circuit board adopts patch electronic components, which not only reduces the volume, but also ensures the reliability of the connection of the circuit, making large-scale automatic production possible, and adopts the circuit board The form makes the installation process more convenient and reduces the noise generated during the operation of the motor.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the waist support motor of the present invention.

Fig. 2 is an exploded schematic view of the waist support motor of the present invention.

Fig. 3 is a schematic diagram of the assembly of the rotor sub-assembly of the present invention.

Fig. 4 is an exploded view of the inner end cover sub-assembly of the present invention.

Fig. 5 is an exploded schematic view of the housing sub-assembly of the present invention.

Fig. 6 is a schematic diagram of the assembly of the outer end cover sub-assembly of the present invention.

Fig. 7 is a schematic structural diagram of the circuit board of the present invention.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions and advantages of the utility model, the application is described in detail below in conjunction with the accompanying drawings, but it is not intended to limit the protection scope of the utility model.

Referring to Fig. 1 and Fig. 2, the novel automobile lumbar support motor provided by the utility model includes: shell sub-assembly 1, rotor sub-assembly 2, inner end cover sub-assembly 3, outer end cover sub-assembly 4; wherein, The inner end cover subassembly 3 is installed on the rotor subassembly 2, and the rotor subassembly 2 is installed in the shell subassembly 1; the outer end cover subassembly 4 is installed in the shell subassembly 1 one end of

Referring to Fig. 3, the rotor subassembly 2 includes: a rotor shaft 21, a stack of silicon steel sheets 22 wound with enameled wires, a copper sleeve 23, a bakelite gasket 24, a wave gasket 25, a Teflon gasket 26, Annular varistor 27 and commutator 28; wherein, the silicon steel sheet stack 22 wound with enameled wire is arranged on the rotor shaft 21, and one end of the rotor shaft 21 is sequentially installed with a copper sleeve 23 and a bakelite gasket from the inside to the outside 24. Wave gasket 25, Teflon gasket 26, the other end of the rotor shaft 21 is sequentially installed with annular varistor 27, commutator 28, Bakelite gasket 24, Teflon gasket 26; A knurling area is also processed on the rotor shaft, and the knurling area is used for injection-molding the worm, and the worm and the rotor shaft are integrated through the knurling area.

Referring to Fig. 4, the inner end cover subassembly 3 includes: inner end cover 301, ball bearing 302, plum blossom fork 303, circuit board 304 with PTC thermal protector, two power pins 305, left inductor 306, Two carbon brush inserts 307, two carbon brushes 308, right inductance 309, ground pin 310, two carbon brush holders 311 and two torsion springs 312; Two cavities, a ball bearing 302 is installed through a plum blossom fork 303 at the center between the two cavities; the circuit board 304 with a PTC thermal protector and two power pins 305 are arranged on the outer cavity; The left inductance 306, two carbon brush inserts 307, two carbon brushes 308, right inductance 309, ground pin 310, two carbon brush holders 311 and two torsion springs 312 are arranged on the inner cavity; 304 is made of SMD electronic components. The positive and negative poles of the power supply pin 305 are used for external power supply. One of the power supply pins 305 is connected to the circuit board 304, and the printed circuit on the circuit board is connected to the left inductor 306. The inductance 306 is connected with the PTC thermal protector on the circuit board, and the PTC thermal protector is connected with a carbon brush insert 307, and the carbon brush insert 307 is connected with a carbon brush 308, and the carbon brush 308 is separated from the rotor. One end of the commutator 28 on the assembly is connected, the commutator 28 is connected to one end of the enameled wire on the rotor sub-assembly, the other end of the enameled wire is connected to the other end of the commutator, and the commutator is connected to the carbon brush 308 on the other side, The carbon brush 308 is connected with another carbon brush insert 307, the carbon brush insert 307 is connected with the right inductance 309, and the right inductance 309 is connected with another power supply pin 305, so that the whole circuit is communicated; the ground pin 310 is connected with the shell sub-assembly 1 to protect the circuit; the two carbon brush holders 311 are respectively set on the inner end cover 301, and the two carbon brushes 308 are respectively installed on the carbon brushes through torsion springs 312 In the frame, make the carbon brush closely contact with the commutator on the rotor sub-assembly.

Referring to Figure 5, the housing subassembly 1 includes: a housing 11, two magnetic tiles 12, two support springs, and a cylindrical bearing 13; the cylindrical bearing 13 is installed at one end of the housing 11, and the two magnetic tiles 12 are respectively installed on the inner side wall of the shell by the support spring.

Referring to Fig. 6, the outer end cover subassembly 4 includes: an outer end cover 41 and a gasket 42, the gasket 42 is arranged in the cavity of the outer end cover and is in close contact with one end of the rotor shaft to improve the low-voltage start-up performance .

Referring to Fig. 7, the circuit board 304 described in the utility model includes: a circuit board body 30401, a chip varistor 30402 arranged on the circuit board body 30401, two ground chip capacitors 30403, a parallel chip capacitor 30404, and The PTC thermal protector 30405 installed on the circuit board body 30401, the parallel chip capacitors, ground chip capacitors, and chip varistors are used to protect the circuit and make the current more stable.

The working principle of the lumbar support motor described in the utility model is as follows: when the power is turned on, the current flows into the circuit board 304 through the power pin 305, is passed to the carbon brush insert 307 after being rectified by the left inductor 306, and flows through the carbon brush 308 , enter the commutator 28, and the enameled wire connected with the commutator 28 will be subjected to the magnetic field of the magnetic tile 12 after being energized, so that the rotor sub-assembly 2 will move, and the motor will start to move like this.

Claims (4)

1. A new type of lumbar support motor for automobiles, characterized in that: comprising: shell sub-assembly, rotor sub-assembly, inner end cover sub-assembly, outer end cover sub-assembly; said inner end cover sub-assembly is installed On the rotor sub-assembly, the rotor sub-assembly is installed in the shell sub-assembly; the outer end cover sub-assembly is installed at one end of the outer shell sub-assembly; the inner end cover sub-assembly includes: the inner end Cover, Ball Bearing, Torx Fork, Circuit Board with PTC Thermal Protector, Two Power Pins, Left Inductor, Two Carbon Brush Inserts, Two Carbon Brushes, Right Inductor, Grounding Pin, Two Carbon Brushes frame and two torsion springs; wherein, the inner end cover has two cavities separated inside and outside, and a ball bearing is installed through a plum blossom fork in the center between the two cavities; the PTC heat The circuit board and two power pins of the protector are arranged on the outer cavity; the left inductance, two carbon brush inserts, two carbon brushes, right inductance, grounding pin, two carbon brush holders and two torque The spring is set on the inner cavity; the circuit board is made of SMD electronic components. connection, the left inductor is connected with the PTC thermal protector on the circuit board, the PTC thermal protector is connected with a carbon brush insert, the carbon brush insert is connected with a carbon brush, and the carbon brush is separated from the rotor One end of the commutator on the assembly is connected, the commutator is connected to one end of the enameled wire on the rotor subassembly, the other end of the enameled wire is connected to the other end of the commutator, and the commutator is connected to the carbon brush on the other side. The brush is connected to another carbon brush insert, and the carbon brush insert is connected to the right inductance, and the right inductance is connected to another power supply pin to communicate with the whole circuit; the ground pin is connected to the shell sub-assembly for Protection circuit; the two carbon brush holders are respectively arranged on the inner end cover, and the two carbon brushes are respectively installed in the carbon brush holders through torsion springs, so that the carbon brushes and the commutator on the rotor sub-assembly Close contact. 2. A new type of lumbar support motor for automobiles according to claim 1, characterized in that: the rotor sub-assembly includes: rotor shaft, silicon steel sheet stacked with enameled wire, copper sleeve, bakelite gasket , corrugated gasket, Teflon gasket, ring varistor, commutator; the silicon steel sheet stacked with enameled wire is set on the rotor shaft, and one end of the rotor shaft is installed with copper sleeve, electric Wood gaskets, wave gaskets, Teflon gaskets, ring varistors, commutators, bakelite gaskets, Teflon gaskets are installed on the other end of the rotor shaft in sequence from inside to outside. 3. A new type of lumbar support motor for automobiles according to claim 1, characterized in that: the housing sub-assembly comprises: a housing, two magnetic tiles, two support springs, and cylindrical bearings; the cylindrical bearings are installed At one end of the housing, the two magnetic tiles are respectively installed on the inner side wall of the housing through a supporting spring. 4. A new type of automobile lumbar support motor according to claim 1, characterized in that: the outer end cover sub-assembly comprises: an outer end cover and a gasket, and the gasket is arranged in the cavity of the outer end cover, It is in close contact with one end of the rotor shaft.