A dual-source emergency drive device with power generation function

Abstract

The present invention discloses a dual-source emergency drive device with a power generation function, comprising a housing, an electric motor and a drive-generator integrated unit, wherein the housing is formed with a cavity; the electric motor is fixed in the cavity; the first shaft of the electric motor is rotatably arranged in the housing; the drive-generator integrated unit is fixed in the cavity; one end of the second shaft of the drive-generator integrated unit is connected to one end of the first shaft through a one-way bearing, for outputting power in one direction toward the second shaft. The drive-generator integrated unit of the technical solution of the present invention can be driven by the electric motor under normal circumstances, transmitting the power of the electric motor to the steering oil pump or other components, or generating electricity as a generator while transmitting power, supplying power to electrical equipment or charging batteries, and can replace the electric motor when the electric motor is damaged; it can also assist the electric motor in driving the steering oil pump or other components under extreme working conditions, thereby appropriately reducing and reducing the power of the electric motor, improving the load rate of the electric motor, and allowing the motor to operate in a more efficient area.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and in particular to a dual-source emergency drive device with a power generation function. Background Art

[0002] Traditional drive devices use electric motors to generate power, but once the motor fails, the entire device stops working, affecting the normal operation of the entire device. In addition, replacing the motor is relatively complicated, and the device cannot be started in time, affecting the operation of the device.

[0003] In summary, if a motor fails, how to promptly replace the motor to generate power to drive the entire device to work normally is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] The main purpose of the embodiments of the present invention is to provide a dual-source emergency drive device with a power generation function, aiming to design a dual-source emergency drive device to drive the shaft to output power when the motor fails.

[0005] The technical solution of the present invention to solve the above technical problems is to provide a dual-source emergency drive device with power generation function, including: a shell, an electric motor and a drive generator, the shell forming a cavity; the electric motor is fixed in the cavity; the first shaft of the electric motor is rotatably arranged in the shell; the drive generator is fixed in the cavity; one end of the second shaft of the drive generator is connected to one end of the first shaft through a one-way bearing, which is used to output power in one direction toward the second shaft.

[0006] In one embodiment of the present invention, the electric motor includes a first stator and a first rotor; the first stator is fixed on the cavity wall of the shell, the first shaft is passed through the first stator and is rotatably fixed to the shell, and one end of the first shaft is connected to one end of the one-way bearing; the first rotor is fixed on the first shaft and is located in the first stator.

[0007] In one embodiment of the present invention, the drive generator includes a second stator and a second rotor; the second stator and the first stator are fixed on the cavity wall of the shell in parallel; the second machine shaft is passed through the second stator and is rotatably fixed on the shell, and one end of the second machine shaft is connected to the other end of the one-way bearing; the second rotor is fixed on the second machine shaft and is located in the second stator.

[0008] In one embodiment of the present invention, the first shaft is fixed to the inner ring of the one-way bearing, and the second shaft is fixed to the outer ring of the one-way bearing; or the first shaft is fixed to the outer ring of the one-way bearing, and the second shaft is fixed to the inner ring of the one-way bearing.

[0009] In one embodiment of the present invention, two front bearings are provided in the housing along the length direction of the first shaft, and two ends of the first shaft are respectively fixed to the inner rings of the two front bearings.

[0010] In one embodiment of the present invention, the housing is provided with a rear bearing along the length direction of the second shaft, and both ends of the second shaft are fixed on the rear bearing and the one-way bearing respectively.

[0011] In one embodiment of the present invention, the dual-source emergency drive device with power generation function further includes a steering oil pump, and the steering oil pump is connected to an end of the second engine shaft away from the first engine shaft.

[0012] The technical solution of the present invention is to provide a drive-generator integrated unit. The drive-generator integrated unit can be driven by an electric motor under normal circumstances to transmit the power of the electric motor to the steering oil pump or other components, or generate electricity as a generator while transmitting power to supply power to other electrical equipment or charge the battery. It can also replace the electric motor when the electric motor is damaged; it can also assist the electric motor in driving the steering oil pump or other components under extreme working conditions, so that the power of the electric motor can be appropriately reduced, thereby improving the load rate of the electric motor, and having more chances to work in the high-efficiency area. The motor efficiency can also be improved, which is more conducive to reducing system energy consumption, saving energy, and extending vehicle range. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the explosion structure of the dual-source emergency drive device with power generation function according to the present invention;

[0015] Figure 2 This is a schematic cross-sectional structural diagram of the dual-source emergency drive device with power generation function according to the present invention.

[0016] Description of Figure Numbers:

[0017] Label name Label name 10 case 30 Drive generator 11 front bearing 31 Second crankshaft 12 rear bearing 32 Second stator 20 electric motor 33 Second rotor 21 First crankshaft 40 One-way bearings 22 First stator 50 Steering oil pump 23 First rotor DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "several" or "a plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0021] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] The present invention proposes a dual-source emergency drive device with a power generation function, aiming to design a dual-source emergency drive device to drive a crankshaft to output power when a motor fails.

[0024] The specific structure of the dual-source emergency drive device with power generation function proposed by the present invention will be described in the following specific embodiments:

[0025] In the technical solution of this embodiment, Figure 1 、 Figure 2 As shown, a dual-source emergency drive device with power generation function includes: a shell 10, an electric motor 20 and a drive generator 30, the shell 10 forms a cavity; the electric motor 20 is fixed in the cavity; the first shaft 21 of the electric motor 20 is rotatably arranged in the shell 10; the drive generator 30 is fixed in the cavity; one end of the second shaft 31 of the drive generator 30 is connected to one end of the first shaft 21 through a one-way bearing 40, which is used to output power in one direction toward the second shaft 31.

[0026] It can be understood that the present application sets a driving generator 30 in the housing 10, and the second shaft 31 of the driving generator 30 is connected to the first shaft 21 of the motor 20 through a one-way bearing 40. The first shaft 21 of the motor 20 drives the one-way bearing 40 to rotate, and the one-way bearing 40 drives the second shaft 31 of the driving generator 30 to rotate, and then drives the parts of the equipment (steering oil pump 50) to rotate through the second shaft 31 to realize multi-axis drive; and the one-way bearing 40 can only output power in one direction, that is, when the motor 20 is damaged, the driving generator 30 provides power to drive the second shaft 31 to rotate. When the second shaft 31 rotates, it drives the parts of the equipment to rotate. However, since it is connected to the first shaft 21 through the one-way bearing 40, it will not drive the first shaft 21 to rotate to achieve the function of driving the equipment.

[0027] In one feasible embodiment, the driving generator 30 is a generator. When the electric motor 20 works normally, it drives the second shaft 31 to rotate, and the second shaft 31 drives the second rotor 33 to rotate. At this time, the driving generator 30 works as a generator, which can generate and output electricity for charging the vehicle battery or powering other electrical equipment.

[0028] Under specific operating conditions, the drive generator 30 is controlled by its controller and can be transformed into an electric motor, working together with the system's original electric motor 20 to drive the steering oil pump 50 and / or other electric accessories. Under normal circumstances, the one-way clutch rotates and engages in the forward direction, ensuring that the driving force of the electric motor 20 is transmitted from the electric motor 20 to the one-way bearing 40, and then from the one-way bearing 40 to the drive generator 30. However, when the drive generator 30 is transformed into an electric motor, if its speed exceeds that of the original electric motor 20, the one-way bearing 40 automatically disengages, and the drive generator 30 (now transformed into an electric motor) rotates forward on its own, driving the steering oil pump 50, but cannot reverse drive the electric motor 20. When the drive generator 30 is passively rotating, after generating AC power, the AC power is processed by the controller and can directly power the vehicle's low-voltage storage battery (DC12V or DC24V). The system then functions as a generator in a conventional vehicle, powering the vehicle's low-voltage electrical system. The driving generator 30 can assist the electric motor 20 in driving the steering oil pump 50 or other components under extreme working conditions, so the power of the electric motor 20 can be appropriately reduced. In this way, the load rate of the electric motor 20 is improved, and there is a greater chance of it working in the high-efficiency area. The motor efficiency can also be improved, which is more conducive to reducing system energy consumption, saving energy, and extending the vehicle's driving range.

[0029] In the technical solution of this embodiment, Figure 2 As shown, the electric motor 20 includes a first stator 22 and a first rotor 23; the first stator 22 is fixed on the cavity wall of the housing 10, the first shaft 21 is passed through the first stator 22 and is rotatably fixed on the housing 10, and one end of the first shaft 21 is connected to one end of the one-way bearing 40; the first rotor 23 is fixed on the first shaft 21 and is located in the first stator 22.

[0030] It can be understood that the motor 20 includes a first stator 22 and a first rotor 23. After power is supplied, the first stator 22 acts on the first rotor 23, thereby driving the first shaft 21 to rotate in the housing 10. The first shaft 21 drives the one-way bearing 40 to rotate, and the one-way bearing 40 drives the second shaft 31 to rotate, thereby driving the components of the equipment to rotate.

[0031] In the technical solution of this embodiment, Figure 2 As shown, the drive generator 30 includes a second stator 32 and a second rotor 33; the second stator 32 and the first stator 22 are fixed on the cavity wall of the shell 10 in parallel; the second machine shaft 31 is arranged in the second stator 32 and is rotatably fixed on the shell 10, and one end of the second machine shaft 31 is connected to the other end of the one-way bearing 40; the second rotor 33 is fixed on the second machine shaft 31 and is located in the second stator 32.

[0032] It can be understood that the driving generator 30 includes a second stator 32 and a second rotor 33. When the motor 20 rotates normally, the second shaft 31 rotates under the action of the one-way bearing 40. When the second shaft 31 rotates, it drives the second rotor 33 to rotate. The second rotor 33 acts on the second stator 32 to generate electricity, thereby achieving the function of simultaneous power generation.

[0033] In the technical solution of this embodiment, the first machine shaft 21 is fixed to the inner ring of the one-way bearing 40, and the second machine shaft 31 is fixed to the outer ring of the one-way bearing 40; or the first machine shaft 21 is fixed to the outer ring of the one-way bearing 40, and the second machine shaft 31 is fixed to the inner ring of the one-way bearing 40.

[0034] It can be understood that the one-way bearing 40 includes an inner ring and an outer ring, the first shaft 21 is fixed to the inner ring of the one-way bearing 40 , and the second shaft 31 is fixed to the outer ring of the one-way bearing 40 .

[0035] In a feasible implementation manner, the first shaft 21 is fixed to the outer ring of the one-way bearing 40 , and the second shaft 31 is fixed to the inner ring of the one-way bearing 40 .

[0036] In the technical solution of this embodiment, Figure 1 、 Figure 2 As shown, two front bearings 11 are provided in the housing 10 along the length direction of the first shaft 21 , and both ends of the first shaft 21 are fixed on the inner rings of the two front bearings 11 respectively.

[0037] It can be understood that by providing the front bearing 11 in the housing 10 , the first shaft 21 is fixed at a fixed position in the housing 10 and is able to rotate relatively in the housing 10 .

[0038] In the technical solution of this embodiment, Figure 1 、 Figure 2 As shown, the housing 10 is provided with a rear bearing 12 along the length direction of the second shaft 31 , and both ends of the second shaft 31 are fixed on the rear bearing 12 and the one-way bearing 40 respectively.

[0039] It can be understood that by arranging the rear bearing 12 and the one-way bearing 40 in the housing 10 , the second shaft 31 is fixed at a fixed position in the housing 10 and is able to rotate relatively in the housing 10 .

[0040] In the technical solution of this embodiment, Figure 1 、 Figure 2 As shown, the dual-source emergency drive device with power generation function further includes a steering oil pump 50 , which is connected to an end of the second crankshaft 31 away from the first crankshaft 21 .

[0041] It can be understood that the steering oil pump 50 is driven by the second crankshaft 31 to rotate.

[0042] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A dual-source emergency drive device with power generation function, characterized in that: include: a housing, wherein the housing is formed with a cavity; an electric motor, the electric motor being fixed in the cavity; a first shaft of the electric motor being rotatably disposed in the housing; and a drive-generator integrated machine, the drive-generator integrated machine being fixed in the cavity; one end of a second shaft of the drive-generator integrated machine being connected to one end of the first shaft via a one-way bearing for unidirectionally outputting power toward the second shaft; The motor includes a first stator and a first rotor; the first stator is fixed to the cavity wall of the housing; the first shaft is disposed in the first stator and is rotatably fixed to the housing, and one end of the first shaft is connected to one end of the one-way bearing; the first rotor is fixed to the first shaft and is located in the first stator; The drive generator includes a second stator and a second rotor; the second stator and the first stator are fixed in parallel on the cavity wall of the shell; the second machine shaft is passed through the second stator and is rotatably fixed on the shell, and one end of the second machine shaft is connected to the other end of the one-way bearing; the second rotor is fixed on the second machine shaft and is located in the second stator.

2. The dual-source emergency drive device with power generation function according to claim 1, characterized in that: The first shaft is fixed to the inner ring of the one-way bearing, and the second shaft is fixed to the outer ring of the one-way bearing; or the first shaft is fixed to the outer ring of the one-way bearing, and the second shaft is fixed to the inner ring of the one-way bearing.

3. The dual-source emergency drive device with power generation function according to claim 1, characterized in that: Two front bearings are arranged in the housing along the length direction of the first shaft, and two ends of the first shaft are respectively fixed on the inner rings of the two front bearings.

4. The dual-source emergency drive device with power generation function according to claim 1, characterized in that: The housing is provided with a rear bearing along the length direction of the second shaft, and both ends of the second shaft are respectively fixed on the rear bearing and the one-way bearing.

5. The dual-source emergency driving device with power generation function according to claim 1, characterized in that: The dual-source emergency drive device with power generation function also includes: A steering oil pump is connected to an end of the second crankshaft away from the first crankshaft.

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