Double-source permanent magnet synchronous motor

Abstract

The utility model discloses a double-source permanent magnet synchronous motor which comprises a motor power assembly and a low-voltage controller, the low-voltage controller is installed and fixed at the upper end of the motor power assembly, the motor power assembly comprises an integrated all-in-one casing front cover and a rear cover, the rear cover is installed and fixed at the tail end of the integrated all-in-one casing front cover, and the low-voltage controller is installed and fixed at the tail end of the integrated all-in-one casing front cover. A high-low voltage duplex winding stator is fixed in a front cover and a rear cover of the integrated all-in-one machine shell, an output rotor is rotatably arranged on the inner side of the high-low voltage duplex winding stator, the side end of the low-voltage controller is further connected with a low-voltage plug-in which extends downwards, and a fixing column is fixed at the outer side end of the front cover of the integrated all-in-one machine shell. A wire harness fixing clamp is relatively fixed on the outer side of the fixing column and located below the low-voltage plug-in, and more than four pairs of mounting holes are further distributed in the side end of the front cover of the integrated all-in-one machine shell. The utility model has the advantages of simple structure, wide application range, long service life and high safety.

Description

Technical Field

[0001] This utility model relates to the field of automotive motor technology, specifically to a dual-source permanent magnet synchronous motor. Background Technology

[0002] As the automotive industry matures, car users increasingly demand higher safety standards. Vehicles are required to be lightweight, and current integrated steering system motor pumps use separate installations for the pump, motor, and controller. This presents several problems: 1. During assembly, the threaded holes connecting the motor front cover and housing are prone to stripping, leading to protection failure; 2. The pump head and motor mounting holes are fixed during different motor pump installations, making adjustments impossible for different vehicle models and situations; 3. Secondary installation of the motor housing and front cover results in poor coaxiality, shortening service life; 4. At high speeds, a power steering failure can lead to loss of steering control, causing accidents and potentially endangering the lives of passengers and drivers; 5. Most controller connectors use a horizontal plug-in connection, making them susceptible to water ingress and damage. External connectors are also plug-in type, making them prone to detachment due to vibrations during use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dual-source permanent magnet synchronous motor, which has a simple structure, wide application range, long service life and high safety.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A dual-source permanent magnet synchronous motor includes a motor power assembly and a low-voltage controller. The low-voltage controller is mounted and fixed on the upper end of the motor power assembly. The motor power assembly includes an integrated front cover and a rear cover. The rear cover is mounted and fixed on the tail end of the integrated front cover. A high- and low-voltage dual-winding stator is fixed inside the integrated front cover and the rear cover. An output rotor is rotatably arranged inside the high- and low-voltage dual-winding stator. A low-voltage plug extending downward is connected to the side end of the low-voltage controller. A fixing post is fixed to the outer end of the integrated front cover. A wire harness fixing clamp is fixed to the outer side of the fixing post and below the low-voltage plug. Four or more pairs of mounting holes are distributed on the side end of the integrated front cover.

[0006] A further technical solution is that the high- and low-voltage dual-winding stator is also connected to low-voltage winding leads and high-voltage winding leads, which are respectively connected to the low-voltage controller and the high-voltage plug-in.

[0007] A further technical solution is that a high-voltage plug is also fixed on the rear cover, and the high-voltage plug is used to electrically connect with the high-voltage winding lead wire on the high- and low-voltage dual-winding stator.

[0008] A further technical solution is that shock-absorbing pads are fixed at the four corners of the bottom of the motor power assembly to reduce vibration during motor use.

[0009] A further technical solution is that the fixing post is also connected with a clamp bolt. The clamp bolt passes through the wire harness fixing clamp and is threaded to the fixing post. First, the side end of the wire harness fixing clamp is pressed against the outer end of the fixing post. Then, the clamp bolt passes through the side end of the wire harness fixing clamp and is threaded to the outer end of the fixing post. In this way, the wire harness can be restricted to the wire harness fixing clamp and cannot move, reducing the risk of falling off.

[0010] The beneficial effects of this utility model are:

[0011] 1. The stator adopts a dual high-voltage and low-voltage winding, which allows the low-voltage winding to provide temporary power in case of an accident while the high-voltage winding is working, thus improving the safety of the vehicle while it is in motion.

[0012] 2. An integrated one-piece housing and front cover are adopted, which integrates the housing and the front cover into one piece, increasing the connection strength and improving the risk of protection failure. The front cover and housing are now one piece, and the one-cut molding process ensures the coaxiality of the housing and the front cover, thus extending the service life.

[0013] 3. Four or more pairs of mounting holes are distributed on the integrated unibody front cover. Depending on the different models, four mounting holes can be used for each installation, and the four holes can be replaced in two groups for installation, making it more applicable.

[0014] 4. The low-voltage plug-in with a downward extension design can prevent rainwater from entering and causing damage when connecting to external components, reducing the need for later maintenance;

[0015] 5. The use of wire harness fixing clamps can limit the wire harness connected to the low-voltage plug, preventing it from falling off due to bumps during vehicle operation, thus enhancing safety. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings required for manufacturing in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a dual-source permanent magnet synchronous motor according to the present invention;

[0018] Figure 2 This is a schematic diagram of the integrated one-piece housing front cover of a dual-source permanent magnet synchronous motor according to this utility model;

[0019] Figure 3 This is a schematic diagram showing the distribution of mounting holes on the front cover of an integrated housing in a dual-source permanent magnet synchronous motor according to this utility model.

[0020] Figure 4 This is a schematic diagram of a high- and low-voltage dual-winding stator in a dual-source permanent magnet synchronous motor according to this utility model.

[0021] Figure 1-4 In the middle: 1-Low voltage controller, 2-Motor power assembly, 3-Low voltage plug, 4-High voltage plug, 5-Shock damping pad, 6-Fixing column, 7-Wire harness fixing clamp, 8-Clamping bolt, 9-High and low voltage dual winding stator, 10-High voltage winding lead wire, 11-Low voltage winding lead wire, 12-Output rotor, 13-Mounting hole, 21-Integrated one-piece housing front cover, 22-Rear cover. Detailed Implementation

[0022] The preferred embodiments of this utility model will be described in detail below so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of this utility model.

[0023] See Figures 1 to 4 As shown, a dual-source permanent magnet synchronous motor includes a motor power assembly 2 and a low-voltage controller 1. The low-voltage controller 1 is mounted and fixed on the upper end of the motor power assembly 2. The motor power assembly 2 includes an integrated housing front cover 21 and a rear cover 22. The rear cover 22 is mounted and fixed on the tail end of the integrated housing front cover 21. A high- and low-voltage dual-winding stator 9 is fixed inside the integrated housing front cover 21 and the rear cover 22. An output rotor 12 is rotatably arranged inside the high- and low-voltage dual-winding stator 9. A low-voltage plug 3 extending downward is also connected to the side end of the low-voltage controller 1. A fixing post 6 is fixed to the outer end of the integrated housing front cover 21. A wire harness fixing clamp 7 is fixed to the outer side of the fixing post 6 and below the low-voltage plug 3. Four or more pairs of mounting holes 13 are also distributed on the side end of the integrated housing front cover 21.

[0024] The high- and low-voltage dual-winding stator 9 is also connected to a low-voltage winding lead 11 and a high-voltage winding lead 10, which are respectively connected to the low-voltage controller 1 and the high-voltage plug-in 4. The high-voltage plug-in 4 is also fixed on the rear cover 22, and is used for electrical connection with the high-voltage winding lead 10 on the high- and low-voltage dual-winding stator 9. Vibration damping pads 5 are also fixed at the four corners of the bottom of the motor power assembly 2 for vibration damping during motor operation. A clamp bolt 8 is also connected to the fixing post 6. The clamp bolt 8 passes through the wire harness fixing clamp 7 and is threaded to the fixing post 6. First, the side end of the wire harness fixing clamp 7 is pressed against the outer end of the fixing post 6, and then the clamp bolt 8 passes through the side end of the wire harness fixing clamp 7 and is threaded to the outer end of the fixing post 6. This confines the wire harness within the wire harness fixing clamp 7, preventing movement and reducing the risk of detachment.

[0025] In this embodiment, the high- and low-voltage dual-winding stator 9 is first installed inside the integrated housing front cover 21. Then, the output rotor 12 is placed inside the integrated housing front cover 21 and installed inside the integrated housing front cover 21 together. Then, the rear cover 22 is fixed to the tail end of the integrated housing front cover 21 with bolts. The high-voltage winding lead 10 on the high- and low-voltage dual-winding stator 9 is connected to the high-voltage plug 4 on the rear cover 22. The low-voltage winding lead 11 on the high- and low-voltage dual-winding stator 9 passes through the holes at the top of the integrated housing front cover 21 and the bottom of the low-voltage controller 1 and is connected to the low-voltage controller 1. The low-voltage controller 1 is connected to external components by a snap-fit ​​connection through two downwardly extending low-voltage plugs 3 on the side end.

[0026] A set of high- and low-voltage dual-winding stator 9 (one high-voltage winding and one low-voltage winding) is equipped with a low-voltage controller 1 on top. When the vehicle is working normally, the vehicle supplies power to the high-voltage winding on the high- and low-voltage dual-winding stator 9, and the drive motor power assembly 2 provides power steering to the vehicle. At this time, the low-voltage controller 1 is in standby mode, and the low-voltage winding on the high- and low-voltage dual-winding stator 9 is de-energized and does not operate. Once a high-voltage component malfunctions or stops operating, the low-voltage controller 1 actively intervenes by supplying power to the low-voltage winding on the high- and low-voltage dual-winding stator 9 for 3 minutes. During these 3 minutes, the power steering will decrease in a stepped manner until the power steering reaches zero, giving the driver sufficient reaction time and steering assistance to pull the vehicle to the side of the road and call for assistance within the 3 minutes of high-voltage power steering loss.

[0027] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that are conceived without creative effort should be covered by the protection scope of this utility model.

Claims

1. A dual-source permanent magnet synchronous motor, characterized by: The device includes a motor power assembly and a low-voltage controller. The low-voltage controller is mounted and fixed on the upper end of the motor power assembly. The motor power assembly includes an integrated front cover and a rear cover. The rear cover is mounted and fixed on the tail end of the integrated front cover. A high- and low-voltage dual-winding stator is fixed inside the integrated front cover and the rear cover. An output rotor is rotatably arranged inside the high- and low-voltage dual-winding stator. A low-voltage plug extending downward is connected to the side end of the low-voltage controller. A fixing post is fixed to the outer end of the integrated front cover. A wire harness fixing clamp is fixed to the outer side of the fixing post and below the low-voltage plug. Four or more pairs of mounting holes are distributed on the side end of the integrated front cover.

2. A dual-source permanent magnet synchronous motor according to claim 1, characterized in that: The high- and low-voltage dual-winding stator is also connected to low-voltage winding leads and high-voltage winding leads.

3. A dual-source permanent magnet synchronous motor according to claim 1, characterized in that: A high-voltage plug is also fixed on the rear cover.

4. A dual-source permanent magnet synchronous motor according to claim 1, characterized in that: The motor power assembly is also equipped with shock-absorbing pads at the four corners of its bottom.

5. A dual-source permanent magnet synchronous motor according to claim 1, characterized in that: The fixing post is also connected to a clamp bolt, which passes through the wire harness fixing clamp and is threadedly connected to the fixing post.

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