A new type of intelligent power disconnector

Abstract

This invention provides a novel intelligent power disconnector comprising a power input shaft, a power output shaft, and a movably connected power connection structure. It also includes a control motor and an actuator. The actuator connects the motor shaft of the control motor to the power connection structure. By rotating the output motor, the actuator drives the power connection structure to translate, thereby controlling the connection or disconnection between the power input shaft and the power output shaft. This novel intelligent power disconnector controls the rotation of the control motor output, and the cooperating actuator converts the output rotational motion into the movement of the power connection mechanism. The movement of the power connection mechanism enables the connection between the power output shaft and the power input shaft to be switched on or off. In electric vehicles, when the four-wheel drive is running smoothly, it can be switched to two-wheel drive, with the other two wheels driven, allowing the other motor of the vehicle to operate in an energy-saving mode, effectively conserving energy.

Description

Technical Field

[0001] This invention relates to the field of vehicle power control technology, and more specifically, to a novel intelligent power disconnector. Background Technology

[0002] Currently, four-wheel drive vehicles offer stronger driving force and better passability than two-wheel drive vehicles, boasting superior off-road and handling performance, but they consume more energy and have poorer fuel economy. In a four-wheel drive vehicle, the engine's power is transmitted via clutch, transmission, transfer case, front and rear drive shafts, and then distributed to the drive axles and subsequently to the left and right half-shafts. The transfer case in a four-wheel drive vehicle is a gear transmission system; its front end connects to the transmission, transmitting the output power through appropriate gear changes to the front and rear drive axles, further increasing torque. In this four-wheel drive state, the vehicle can travel on rough roads such as ice, snow, mud, and areas without roads. There are three types of four-wheel drive: part-time four-wheel drive, on-demand four-wheel drive, and full-time four-wheel drive. Part-time four-wheel drive allows the driver to switch between two-wheel and four-wheel drive modes by engaging or disengaging the transfer case, depending on road conditions. This is the most common drive mode for off-road vehicles or four-wheel drive SUVs. Under normal road conditions, the vehicle uses two-wheel drive. When it needs to traverse rough terrain, it switches from two-wheel drive to four-wheel drive, allowing all four wheels to provide driving force, thereby improving the vehicle's off-road performance. Especially when the four-wheel drive vehicle is powered by an electric or hybrid system, it consumes both fuel and electricity in four-wheel drive mode.

[0003] Traditional four-wheel drive control systems work by the operator pushing a transfer lever in the cab, which in turn pulls a cable or push rod to control the transfer mechanism. This type of control system is complex, occupies a large amount of cab space, requires the vehicle to be stopped to switch, cannot react quickly, easily misses opportunities to escape difficult situations, and is inconvenient to operate.

[0004] In summary, existing four-wheel drive vehicle power output switching devices suffer from problems such as complex structure and poor switching effect. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing four-wheel drive vehicle power output mode switching device has a complex structure and poor switching effect.

[0006] To address the aforementioned problems, this invention provides a novel intelligent power disconnector, comprising a power input shaft, a power output shaft, and a movably connected power connection structure. It also includes a control motor and an actuator. The actuator connects the motor shaft of the control motor to the power connection structure, and drives the power connection structure to translate by rotating the output of the control motor, thereby controlling the connection or disconnection between the power input shaft and the power output shaft.

[0007] As a preferred option, the motor shaft of the control motor is arranged perpendicularly to the power input shaft and the power output shaft.

[0008] As a preferred embodiment, the actuator includes an eccentric block and a positioning sleeve that are eccentrically disposed on the motor shaft of the control motor. The positioning sleeve is connected between the power input shaft and the power output shaft. The outer circumference of the positioning sleeve is provided with a groove that cooperates with the eccentric block. The eccentric block moves the positioning sleeve axially to position or disengage the power input shaft and the power output shaft circumferentially.

[0009] As a preferred embodiment, the outer circumference of the power output shaft is provided with engaging external teeth, one end of the positioning sleeve is circumferentially positioned and connected to the power input shaft, and the other end is fitted onto the outside of the power output shaft. The engaging external teeth and the positioning teeth on the positioning sleeve are spaced apart, pushing the positioning sleeve to move axially, driving the engaging external teeth to engage or disengage with the positioning teeth on the positioning sleeve.

[0010] As a preferred embodiment, the motor shaft is connected to a planetary gear set mechanism, the output gear of the motor shaft meshes with the planetary gears of the planetary gear set mechanism, and the eccentric block is set on the wheel frame of the planetary gear set mechanism.

[0011] As a preferred embodiment, the planetary gear mechanism includes a primary planetary gear set and a secondary planetary gear set that are connected by a transmission. The output gear of the motor shaft meshes with the planetary gears of the primary planetary gear set, and the eccentric block is set on the gear carrier of the secondary planetary gear set.

[0012] As a preferred embodiment, the device also includes a disconnector housing, in which the control motor and actuator are installed, and the connection between the power input shaft and the power output shaft is located within the housing.

[0013] As a preferred embodiment, the motor control includes the motor itself and a servo control component.

[0014] The novel intelligent power disconnector provided by this invention includes a power input shaft, a power output shaft, and a movably connected power connection structure. It also includes a control motor and an actuator. The actuator connects the motor shaft of the control motor to the power connection structure. By rotating the output of the actuator motor, it drives the power connection structure to translate, thereby controlling the connection or disconnection between the power input shaft and the power output shaft. This novel intelligent power disconnector controls the connection between the power output shaft and the power input shaft by controlling the rotation of the control motor, and the cooperating actuator converts the rotational motion into the movement of the power connection mechanism. The movement of the power connection mechanism achieves the connection switching between the power output shaft and the power input shaft. Essentially, it controls the power output by controlling a series of mechanisms driven by the control motor. The power connection and disconnection can be precisely controlled, the operation is easy and the response is timely, and the structure is simple and the control action is stable. This device can switch an electric vehicle's four-wheel drive to two-wheel drive during smooth operation, with the other two wheels driven, allowing the other motor to be in energy-saving mode, effectively saving energy. Electric four-wheel drive saves electricity, hybrid four-wheel drive saves fuel, and the overall vehicle range is improved. It effectively solves the problems of complex structure and poor switching effect of existing four-wheel drive vehicle power output mode switching devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a novel intelligent power disconnector provided by the present invention.

[0016] in, Figure 1 middle:

[0017] 1. Power input shaft; 2. Planetary gear set mechanism; 3. Motor shaft; 4. Control motor; 5. Wheel frame; 6. Eccentric block; 7. Slot; 8. Positioning gear sleeve; 9. Disconnector housing; 10. Power output shaft. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a novel intelligent power disconnector provided by the present invention.

[0020] The novel embodiment of the present invention includes a power input shaft 1, a power output shaft 10, and a movably connected power connection structure. It also includes a control motor 4 and an actuator. The actuator connects the motor shaft 3 of the control motor 4 and the power connection structure. By rotating the output of the actuator, the power connection structure is driven to translate, thereby controlling the connection or disconnection between the power input shaft 1 and the power output shaft 10.

[0021] This novel intelligent power disconnector controls the rotation of a motor output, and the cooperating actuator converts the rotational motion into the movement of a power connection mechanism. This movement of the power connection mechanism controls the connection between the power output shaft and the power input shaft. Essentially, it controls the power output by controlling a series of driven mechanisms via a controlled motor. The power connection is precisely controlled, easy to operate, and responds quickly. Furthermore, its simple structure and stable control action allow for the switching of four-wheel drive in electric vehicles during smooth operation, switching to two-wheel drive with the other two wheels driven, thus putting the other motor in energy-saving mode and effectively conserving energy. This effectively solves the problems of complex structures and poor switching effects in existing four-wheel drive vehicle power output switching devices.

[0022] Based on the above embodiments, a preferred embodiment is that the motor shaft 3 of the control motor 4 is arranged perpendicularly to the power input shaft 1 and the power output shaft 10. The technical solution provided in this embodiment optimizes the overall spatial layout design of the device, as the output shaft of the control motor is perpendicularly distributed to the straight lines containing the power input shaft and the power output shaft, shortening the overall axial distance of the device and reducing the overall axial space occupied by the device.

[0023] The technical solution provided in this embodiment optimizes the specific structural design of the actuator. The actuator includes an eccentric block 6 and a positioning sleeve 8 that are eccentrically disposed with respect to the motor shaft 3 of the control motor 4. The positioning sleeve 8 is connected between the power input shaft 1 and the power output shaft 10. The outer periphery of the positioning sleeve 8 is provided with a groove 7 that cooperates with the eccentric block 6. By moving the positioning sleeve 8 axially through the eccentric block 6, the power input shaft 1 and the power output shaft 10 are circumferentially positioned or disengaged.

[0024] The eccentric block, which is mechanically connected to the motor shaft, converts the output rotational motion into vertical feed motion through the eccentric structure. That is, the eccentric rotational motion of the eccentric block, in conjunction with the slot structure, pushes the positioning sleeve to make feed motion in the direction perpendicular to the motor output shaft. The positioning sleeve can circumferentially position or disengage the power input shaft and power output shaft connected to it at different axial positions. The overall structure is relatively simple, and the design control of the rotational motion conversion achieved by the eccentric structure is stable.

[0025] Based on the above embodiments, this embodiment optimizes the connection method between the positioning sleeve and the power input shaft and the power output shaft. Specifically, the power output shaft 10 is provided with engaging external teeth on its outer periphery. One end of the positioning sleeve 8 is circumferentially positioned and connected to the power input shaft 1, and the other end is fitted onto the outside of the power output shaft 10. The engaging external teeth and the positioning teeth on the positioning sleeve 8 are spaced apart, which pushes the positioning sleeve 8 to move axially, driving the engaging external teeth to engage or disengage with the positioning teeth on the positioning sleeve 8.

[0026] This design features a structure where the positioning sleeve and the external teeth of the power output shaft are spaced out. That is, the axial tooth structure on the outer periphery of the connection point between the two is intermittent. This structure ensures that the connection or disconnection can be switched by only axially shifting the positioning sleeve a relatively short distance. This shortens the displacement required for switching states, reduces the difficulty of the mechanical structure to achieve control actions, and helps to optimize and simplify the overall design of the device.

[0027] Since the control motor itself has a high speed, and the control action converted by the eccentric block only requires a small segment of rotational motion to complete the operation when switching the connection state, the high speed of the motor will make the control action difficult to achieve. Therefore, in this embodiment, the design of planetary gears is used to reduce the speed of the output rotation of the motor, so as to reduce the difficulty of controlling the output rotation phase. The motor shaft 3 is connected to the planetary gear set mechanism 2, and the output gear of the motor shaft 3 meshes with the planetary gears of the planetary gear set mechanism 2. The eccentric block 6 is set on the wheel frame 5 of the planetary gear set mechanism 2.

[0028] The planetary gear mechanism reduces the rotational speed of the control motor output, thus reducing the difficulty of controlling its output rotational phase. The eccentric block is located on the other side of the wheel frame away from the motor output shaft.

[0029] The planetary gear mechanism includes a primary planetary gear set and a secondary planetary gear set connected by a transmission. The output gear of the motor shaft 3 meshes with the planetary gears of the primary planetary gear set, and an eccentric block is mounted on the wheel carrier of the secondary planetary gear set. This embodiment is a continuation of the technical concept of the above embodiments. When the vehicle has high requirements for the switching speed of the drive mode switching control action, a high-speed control motor may be required. However, excessively high speed will greatly increase the difficulty of controlling the rotation phase. Therefore, a multi-stage planetary gear set design is provided to optimize the deceleration capability of the planetary gear set.

[0030] Based on the above embodiments, the device further includes a disconnector housing 9, with the control motor 4 and actuator installed inside the housing, and the connection between the power input shaft 1 and the power output shaft 10 located inside the housing. The overall assembly structure design of the device is optimized.

[0031] The technical solution provided in this embodiment optimizes the control of the motor. By accurately controlling the number of rotations output by the motor each time it works through a servo control component, accurate control of the output control action is achieved. The control motor includes the motor itself and the servo control component.

Claims

1. A new power intelligent disconnector, characterized by, The device includes a power input shaft (1), a power output shaft (10), and a movably connected power connection structure. It also includes a control motor (4) and an actuator. The actuator connects the motor shaft (3) of the control motor (4) to the power connection structure. The actuator drives the power connection structure to translate via the output rotation of the motor, thereby controlling the connection or disconnection between the power input shaft (1) and the power output shaft (10). The actuator includes an eccentric block (6) and a positioning sleeve (8) eccentrically disposed with respect to the motor shaft (3) of the control motor (4). The positioning sleeve (8) is connected between the power input shaft (1) and the power output shaft (10). The outer periphery of the positioning sleeve (8) is provided with a groove (7) that mates with the eccentric block (6). The eccentric block (6)... The positioning sleeve (8) is moved axially to position or disengage the power input shaft (1) from the power output shaft (10) circumferentially; the power output shaft (10) is provided with engaging external teeth on its outer circumference; one end of the positioning sleeve (8) is circumferentially connected to the power input shaft (1) and the other end is fitted onto the power output shaft (10); the engaging external teeth and the positioning teeth on the positioning sleeve (8) are spaced apart; the positioning sleeve (8) is pushed to move axially, driving the engaging external teeth to engage or disengage with the positioning teeth on the positioning sleeve (8); the motor shaft (3) is connected to a planetary gear set mechanism (2); the output gear of the motor shaft (3) meshes with the planetary gears of the planetary gear set mechanism (2); the eccentric block (6) is set on the wheel frame (5) of the planetary gear set mechanism (2).

2. The novel power intelligent disconnector according to claim 1, characterized in that, The motor shaft (3) of the control motor (4) is arranged vertically with the power input shaft (1) and the power output shaft (10).

3. The novel power intelligent disconnector according to claim 1, characterized in that, The planetary gear set mechanism includes a primary planetary gear set and a secondary planetary gear set connected by transmission. The output gear of the motor shaft (3) meshes with the planetary gears of the primary planetary gear set, and the eccentric block (6) is disposed on the wheel frame (5) of the secondary planetary gear set.

4. The novel power intelligent disconnector according to claim 1, characterized in that, It also includes a disconnector housing (9), in which the control motor (4) and the actuator are installed, and the connection between the power input shaft (1) and the power output shaft (10) is located inside the housing.

5. The novel power intelligent disconnector according to claim 4, characterized in that, The control motor (4) includes a motor and a servo control component.

6. A four-wheel drive vehicle characterized by Including the novel intelligent power disconnector as described in any one of claims 1-5.

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