An electric power steering device and an electrically powered luggage compartment

Abstract

The application discloses an electric steering device and an electric luggage case, and belongs to the field of luggage cases. The electric steering device comprises a steering rod, a fixing base, and a steering motor for driving the steering of the steering rod. The steering motor comprises a stator and a rotor. The stator is fixedly connected to the fixing base, and the rotor is fixedly connected to the steering rod. The electric steering device and the electric luggage case provided by the application utilize the cooperation of the stator and the rotor of the steering motor to realize the left and right electric steering of the steering rod, and the steering motor can be controlled by a controller to meet the use requirements of remote control, automatic following and other functions.

Description

Technical Field

[0001] This application relates to the field of luggage, and particularly to an electric steering device and an electric luggage. Background Technology

[0002] Electric suitcases are improvements on traditional suitcases, enabling them to be ridden and reducing the burden of carrying luggage. However, to enable electric suitcases to have more intelligent functions, such as remote control and automatic following, it is necessary to solve the problem of how to achieve electric steering. Therefore, an electric steering device and an electric suitcase need to be designed. Summary of the Invention

[0003] This application provides an electric steering device and an electric luggage box to solve the problems mentioned in the background art.

[0004] An electric steering device includes a steering rod, a fixed base, and a steering motor for driving the steering rod to turn. The steering motor includes a stator and a rotor, the stator being fixedly connected to the fixed base, and the rotor being fixedly connected to the steering rod.

[0005] Specifically, it also includes a front wheel and a wheel fork for mounting the front wheel. A steering connector is fixedly connected between the rotor and the wheel fork, and the rotor synchronously drives the front wheel to steer through the steering connector.

[0006] Specifically, the stator is fixedly fitted with a stator cover, and the rotor is fixedly fitted with a rotor cover. The stator cover and the rotor cover are fitted together and form a receiving cavity inside them. The stator and the rotor are located in the receiving cavity.

[0007] Specifically, the connection between the stator outer cover and the rotor outer cover is provided with a staggered step.

[0008] Specifically, the rotor is fixedly connected to a connecting sleeve, and the connecting sleeve is fixedly connected to the steering rod.

[0009] Specifically, the connecting sleeve is provided with a locking thread, and the connecting sleeve is inserted into the steering rod and fixedly connected to the steering rod.

[0010] Specifically, the wheel fork is rotatably connected to the fixed seat, the wheel fork is provided with a steering limiter, the fixed seat is provided with a steering limiter groove adapted to the steering limiter, and the steering limiter is inserted into the steering limiter groove.

[0011] Specifically, the steering rod includes a fixed rod that is fixedly connected to the rotor and a lifting rod that is slidably mounted on the fixed rod and can slide along the fixed rod. The top of the lifting rod is provided with a steering handle.

[0012] An electric suitcase includes a suitcase body and the aforementioned electric steering device.

[0013] Specifically, the fixed seat in the electric steering device is fixedly connected to the housing.

[0014] Specifically, the housing includes a telescopic rod that can protrude out of the housing body, and the fixed seat in the electric steering device is fixedly installed on the telescopic rod.

[0015] Specifically, the housing is equipped with an electric push rod for driving the telescopic rod to slide.

[0016] As can be seen from the above technical solution, the electric steering device and electric luggage box provided in this application realize the electric steering of the steering rod by utilizing the cooperation of the stator and rotor of the steering motor. Thus, the steering motor can be controlled by the controller to meet the usage requirements of functions such as remote control and automatic following. Attached Figure Description

[0017] Figure 1 A perspective view of an electric steering device provided in this application;

[0018] Figure 2 A perspective view of the steering motor in an electric steering device provided in this application;

[0019] Figure 3 A schematic diagram of the connection between the steering motor and the fixed base in an electric steering device provided in this application;

[0020] Figure 4 A perspective view of the stator housing in an electric steering device provided in this application;

[0021] Figure 5 A perspective view of the fixed base in an electric steering device provided in this application;

[0022] Figure 6 A schematic diagram showing the connection between the stator housing and the rotor housing in an electric steering device provided in this application;

[0023] Figure 7 for Figure 6 Cross-sectional view of AA in the middle;

[0024] Figure 8 A schematic diagram showing the position of the connecting sleeve in an electric steering device provided in this application;

[0025] Figure 9 A perspective view of a fixed rod in an electric steering device provided in this application;

[0026] Figure 10 A perspective view of a steering connector in an electric steering device provided in this application;

[0027] Figure 11A perspective view of the front wheel and wheel fork in an electric steering device provided in this application;

[0028] Figure 12 A schematic diagram of the bottom of the fixed base in an electric steering device provided in this application;

[0029] Figure 13 A perspective view of an electric steering device provided in this application with the lifting rod deployed;

[0030] Figure 14 A side view of the electric luggage box provided for this application;

[0031] Figure 15 A schematic diagram of the internal structure of the electric suitcase provided in this application;

[0032] Figure 16 A perspective view of the electric suitcase provided in this application;

[0033] Figure 17 A perspective view of the support base in the electric suitcase provided in this application;

[0034] Figure 18 A schematic diagram of the back of the electric suitcase provided in this application.

[0035] Wherein: 10-Steering rod, 101-Fixed rod, 102-Lifting rod, 103-Steering handle, 104-Control component, 105-Speed ​​control throttle, 106-Brake throttle, 20-Fixed base, 201-Steering limit groove, 202-Connecting part, 30-Steering motor, 301-Stator, 302-Rotor, 303-Stator outer cover, 304-Mounting foot, 305-Mounting groove, 306-Steering motor cable outlet, 307-Rotor outer cover, 308-Receiving cavity, 309-Offset step, 310-Connecting sleeve, 311 - Mounting base, 312 - Locking thread, 313 - Tensioning notch, 314 - Tensioning screw, 40 - Front wheel, 401 - Wheel fork, 402 - Steering connector, 403 - Connecting base, 404 - Through hole, 405 - Riser, 406 - Handle cable outlet, 407 - Steering limiter, 50 - Housing, 501 - Telescopic rod, 502 - Controller, 503 - Opening, 504 - Support base, 505 - Slide rail, 506 - Electric push rod, 507 - Battery, 508 - Battery slot, 509 - Power switch, 510 - Control switch. Detailed Implementation

[0036] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but this is not intended to limit the scope of protection of the present invention. The terms "front," "rear," "left," "right," "upper," and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "first" and "second" are only used to simplify the textual description and distinguish it from similar objects, and should not be construed as a specific sequential relationship.

[0037] See Figure 1 and Figure 2 This application provides an electric steering device, including a steering rod 10, a fixed base 20, and a steering motor 30 for driving the steering rod 10 to turn. The steering motor 30 includes a stator 301 and a rotor 302, such as a gimbal motor. The stator 301 and the rotor 302 are arranged vertically. The steering center axis of the rotor 302 and the steering rod 10 is coaxial with the center axis of the stator 301. The stator 301 is fixedly connected to the top of the fixed base 20. The rotor 302 is located on the upper part of the stator 301 and fixedly connected to the steering rod 10. When the steering motor 30 is started, the rotor 302 rotates relative to the stator 301, and the rotor 302 drives the steering rod 10 to rotate to achieve left and right electric steering.

[0038] See Figures 2 to 7 Both the stator 301 and the rotor 302 are cylindrical. A stator cover 303 is fitted over the stator 301. The back of the stator 301 and the stator cover 303 have corresponding screw holes. The stator 301 is fixedly installed inside the stator cover 303 by locking screws. Multiple mounting feet 304 protrude from the bottom of the stator cover 303. The mounting base 20 has multiple mounting slots 305 that mate with the mounting feet 304. The mounting feet 304 are inserted into corresponding mounting slots. The stator cover 303 is installed in the groove 305 and fixed by locking screws. The cooperation between the protruding mounting feet 304 and the recessed mounting groove 305 achieves a tight connection between the stator cover 303 and the fixed seat 20, so as to prevent the stator 301 from causing the stator cover 303 to shift relative to the fixed seat 20, thereby affecting the electric steering accuracy. The bottom of the stator cover 303 is also provided with a steering motor cable outlet hole 306 for the steering motor 30 to run the cable, so as to prevent the cable harness from being exposed or tangled.

[0039] The rotor 302 is fitted with a rotor cover 307. Both the back of the rotor 302 and the rotor cover 307 have corresponding screw holes. The rotor 302 is fixedly installed in the rotor cover 307 by locking screws. The rotor cover 307 and the stator cover 303 are fitted together and form a receiving cavity 308 inside. The stator 301 and the rotor 302 are both located in the receiving cavity 308. Placing the stator 301 and the rotor 302 in the receiving cavity 308 can effectively protect them and prevent external collisions from damaging the steering motor 30. On the other hand, because there is a certain gap between the stator 301 and the rotor 302, this arrangement can also isolate dust and debris to ensure the normal rotation of the rotor 302.

[0040] The stator cover 303 and the rotor cover 307 are both cylindrical and mutually compatible. When the rotor 302 rotates relative to the stator 301, it synchronously drives the rotor cover 307 to rotate relative to the stator cover 303. The connection between the stator cover 303 and the rotor cover 307 is provided with a staggered step 309, which is higher on the inside and lower on the outside. This design can prevent rainwater from entering the receiving cavity 308 through the gap, further ensuring the normal operation of the steering motor 30.

[0041] See Figure 8 , Figure 9 and Figure 13 The steering rod 10 includes a fixed rod 101 fixedly connected to the rotor 302 and a lifting rod 102 slidably mounted on the fixed rod 101 and slidable along the fixed rod 101. Both the fixed rod 101 and the lifting rod 102 are hollow tubular structures. A connecting sleeve 310 is fixedly connected to the rotor 302. Specifically, the bottom of the connecting sleeve 310 is provided with a mounting seat 311, which is fixedly mounted to the outside of the rotor cover 307 by a locking screw. The outer surface of the connecting sleeve 310 is provided with a locking thread 312. The bottom of the fixed rod 101 is provided with a tension notch 313 and a tension screw 314. The connecting sleeve 310 is inserted into the fixed rod 101, and the tension notch 313 is tightened by the tension screw 314 to achieve a fixed connection between the connecting sleeve 310 and the fixed rod 101, thereby achieving a fixed connection between the rotor 302 and the steering rod 10. The connecting sleeve 310 and the fixing rod 101 are made of different materials. The fixing rod 101 is made of aluminum alloy and the connecting sleeve 310 is made of iron. By tightening and pressing the two different metals, a stable connection between the connecting sleeve 310 and the fixing rod 101 is achieved. At the same time, the locking thread 312 is used to increase the surface friction between the two, further improving the stability of the connection.

[0042] See Figure 10 and Figure 11The electric steering device also includes a front wheel 40 located at the lower part of the fixed base 20 and a wheel fork 401 for mounting the front wheel 40. The front wheel 40 is a hub motor wheel. A steering connector 402 is fixedly connected between the rotor 302 and the wheel fork 401. One end of the steering connector 402 is fixedly connected to the rotor cover 307, and the other end is fixedly connected to the wheel fork 401. A connecting seat 403 is provided on the upper part of the steering connector 402. The connecting seat 403 is provided with screw holes that are adapted to the rotor 302 and the rotor cover 307. The connecting seat 403 is fixedly connected to the rotor 302 and the rotor cover 307 by locking screws. A through hole 404 is provided in the middle of the connecting seat 403 for the connecting sleeve 310 to pass through. The middle part of the steering connector 402 is in the shape of a semi-enclosed cover and is wrapped around the outside of the rotor cover 307, the stator cover 303 and the fixed base 20. The lower part of the connecting seat 403 is fixedly connected to the wheel fork 401 by locking screws. When the rotor 302 rotates, it drives the steering rod 10 to rotate synchronously via the rotor cover 307 and the connecting sleeve 310. At the same time, it drives the wheel fork 401 and the front wheel 40 to rotate synchronously via the rotor cover 307 and the steering connector 402. When the steering motor 30 is not started, the steering rod 10 can drive the rotor 302, the rotor cover 307, the steering connector 402 and the front wheel 40 to rotate arbitrarily.

[0043] See Figure 5 , Figure 11 and Figure 12 The wheel fork 401 has a riser 405 on its upper part, which is inserted into the fixed base 20 and rotatably connected to the fixed base 20 via a bearing. The fixed base 20 is hollow inside and communicates with the steering motor cable outlet 306 and the riser 405. The control cable of the steering motor 30 enters the fixed base 20 through the steering motor cable outlet 306, and the control cable of the front wheel 40 enters the fixed base 20 through the riser 405. The side of the fixed base 20 also has a handlebar cable outlet 406, which is also connected to the interior of the fixed base 20.

[0044] See Figure 13 The top of the lifting rod 102 in the steering lever 10 is equipped with a steering handle 103. The steering handle 103 has a control component 104 for controlling the forward or backward movement of the front wheel 40. The control component 104 includes a speed control throttle 105 and a brake throttle 106. Both the speed control throttle 105 and the brake throttle 106 can rotate circumferentially. Both the speed control throttle 105 and the brake throttle 106 have a force-applying element that allows the thumb to press or flick. The speed controller of the speed control throttle 105 is a potentiometer or a Hall sensor. The control line of the control component 104 passes through the hollow lifting rod 102, the fixed rod 101, and the hollow connecting sleeve 310 to the outside of the fixed base 20, and then enters the interior of the fixed base 20 through the handle cable outlet hole 406.

[0045] See Figure 11 and Figure 12 The wheel fork 401 is provided with a steering limiter 407, and the fixed seat 20 is provided with a steering limiter groove 201 adapted to the steering limiter 407. The steering limiter 407 is inserted into the steering limiter groove 201 to limit the steering angle of the front wheel 40 and the steering rod 10.

[0046] This application also provides an electric suitcase, including a suitcase body 50 and the aforementioned electric steering device.

[0047] See Figure 14 and Figure 15 In one embodiment, the housing 50 includes a telescopic rod 501 that protrudes out of the housing 50. The fixed seat 20 of the electric steering device is fixedly installed on the telescopic rod 501. Specifically, the telescopic rod 50 has a hollow structure. The fixed seat 20 has a connecting part 202 protruding from the side near the telescopic rod 50. The connecting part 202 is inserted into the telescopic rod 50 and fixedly connected to the telescopic rod 50 by a locking screw. The connecting part 202 is hollow and communicates with the inside of the fixed seat 20. The control lines of the steering motor 30, the front wheel 40, and the control components 104 all enter the housing 50 through the inside of the fixed seat 20, the connecting part 202, and the telescopic rod 501, and are connected to the controller 502.

[0048] See Figures 16 to 18 The bottom front of the housing 50 has an opening 503 and a support 504 installed at the opening 503. The support 504 has a slide rail 505 through which the telescopic rod 501 passes, and the telescopic rod 501 passes through the slide rail 505 and connects to the fixed base 20. Inside the housing 50 is an electric push rod 506 for driving the telescopic rod to slide. One end of the electric push rod 506 is fixed to the housing 50, and the other end is connected to the telescopic rod 501. The back of the housing 50 has a battery 507 and a battery slot 508. The battery 507 is detachably installed in the battery slot 508. The back of the housing 50 also has a power switch 509 and a control switch 510. The control switch 510 is used to control the extension and retraction of the electric push rod 506. The battery 507, power switch 509, and control switch 510 are all connected to the controller 502. Two rear wheels 512 are mounted on the rear bottom side of the housing 50 via wheel axle fixing parts 511, and the two rear wheels 512 are driven by the front wheels 40.

[0049] In another embodiment, the fixed seat in the electric steering device is fixedly connected to the housing 50, the steering rod 10, the fixed seat 20, and the steering motor 30 are all located inside the housing 50, the lifting rod 102 passes through the top wall of the housing 50 from the inside to the outside and protrudes out of the housing 50, and the front wheel 40 is located on the front side of the bottom of the housing 50.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Therefore, although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention. All technical solutions and improvements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electric steering device, characterized in that, It includes a steering rod, a mounting base, and a steering motor for driving the steering rod to turn. The steering motor includes a stator and a rotor. The stator is fixedly connected to the mounting base, and the rotor is fixedly connected to the steering rod.

2. The electric steering device according to claim 1, characterized in that, It also includes a front wheel and a wheel fork for mounting the front wheel. A steering connector is fixedly connected between the rotor and the wheel fork, and the rotor synchronously drives the front wheel to steer through the steering connector.

3. The electric steering device according to claim 1, characterized in that, The stator is fixedly fitted with a stator cover, and the rotor is fixedly fitted with a rotor cover. The stator cover and the rotor cover are fitted together and form a receiving cavity inside them. The stator and the rotor are located in the receiving cavity.

4. The electric steering device according to claim 3, characterized in that, The connection between the stator outer cover and the rotor outer cover is provided with a staggered step.

5. The electric steering device according to claim 1, characterized in that, The rotor is fixedly connected to a connecting sleeve, and the connecting sleeve is fixedly connected to the steering rod.

6. The electric steering device according to claim 5, characterized in that, The connecting sleeve is provided with locking threads. The connecting sleeve is inserted into the steering rod and is fixedly connected to the steering rod.

7. The electric steering device according to claim 2, characterized in that, The wheel fork is rotatably connected to the fixed base. The wheel fork is provided with a steering limiter. The fixed base is provided with a steering limiter groove that is adapted to the steering limiter. The steering limiter is inserted into the steering limiter groove.

8. The electric steering device according to claim 1, characterized in that, The steering rod includes a fixed rod that is fixedly connected to the rotor and a lifting rod that is slidably mounted on the fixed rod and can slide along the fixed rod. The top of the lifting rod is provided with a steering handle.

9. An electric suitcase, characterized in that, Includes a housing and the electric steering device as described in any one of claims 1 to 8.

10. The electric suitcase according to claim 9, characterized in that, The fixed seat in the electric steering device is fixedly connected to the housing.

11. The electric suitcase according to claim 9, characterized in that, The housing includes a telescopic rod that can protrude out of the housing body, and the fixed seat in the electric steering device is fixedly installed on the telescopic rod.

12. The electric suitcase according to claim 11, characterized in that, The housing is equipped with an electric push rod for driving the telescopic rod to slide.

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