Separate structure of motor stator of electric water pump
A technology of motor stator and electric water pump, which is applied in the direction of pump device, electromechanical device, structural connection, etc., can solve the problems of affecting the stable operation of the rotor and the failure of the electric water pump to supply water normally, and achieves the effect of simple structure, easy assembly and low production cost.
Active Publication Date: 2016-11-09
富奥泵业(湖北)有限公司
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Problems solved by technology
When the motor stator is installed into the water pump body in a sub-package structure, if the motor stator shakes during the operation of the electric water pump, it will affect the stable operation of the rotor and cause the electric water pump to fail to supply water normally; therefore, in the structural design, it must be ensured that the motor stator is completely Constrained, fixed and reliable
Method used
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Embodiment Construction
[0020] like figure 1 As shown, an electric water pump motor stator sub-assembly structure includes a water pump body 1, a motor stator 2, a control board 3, a water pump rear end cover 4, an impeller cavity 5, a motor rotor 6, an impeller 7, and a water pump front end cover 8; figure 2 As shown, the motor stator 2 is mainly composed of a plastic frame 201 and a silicon steel sheet 202. Six silicon steel sheets 202 evenly spaced around the circumference are fixed on the peripheral surface of the plastic frame 201, and a coaxial wire is sleeved on the tail end of the motor stator 2 There is no gap between the fine-tuning part 9 of the motor stator 2 and the inner diameter of the water pump body 1 through the fine-tuning part 9; such as image 3 As shown, the structure of the fine-tuning component 9 is as follows: including a connecting seat 901 that can be fixed on the rear end surface of the motor stator 2, a plurality of connecting arms 902 are evenly distributed in the circu...
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The invention provides a separate structure of a motor stator of an electric water pump. The separate structure comprises a water pump body, the motor stator, a control board, a water pump rear end cover, an impeller cavity, a motor rotor, an impeller and a water pump front end cover, wherein a fine tuning part sleeves the tail end of the motor stator; the motor stator passes through the fine tuning part and no gap is generated between the motor stator and the inner diameter of the water pump body; the structure of the fine tuning part comprises a connecting base which can be fixed on the tail end surface of the motor stator; a plurality of connecting arms are uniformly distributed in the circumferential direction of the connecting base at intervals; the outer end of each connecting arm extends towards the front end direction of the motor stator in a bending manner and then forms a spring sheet; and a gap is arranged between the inner arc surface of the spring sheet and the outer peripheral surface of the motor stator. The target of designing the structure of the spring sheet is to ensure that the motor stator can be easily shifted into the water pump body through manpower when the motor stator is assembled in a non-interference fit manner; and meanwhile, no gap between the motor stator and the inner diameter of the water pump body is ensured, so that the radial direction of the motor stator does not shake when the water pump works.
Description
technical field [0001] The invention belongs to the technical field of electric water pumps for automobiles, and particularly relates to an electric water pump motor stator sub-assembly structure. Background technique [0002] The brushless DC motor is the driving part of the electric water pump. The stator of the motor is fixed and the rotor of the motor rotates together with the impeller. When the motor stator is installed in the water pump body in a separate package structure, if the motor stator shakes during the operation of the electric water pump, the stable operation of the rotor will be affected, and the electric water pump will not be able to supply water normally; therefore, in the structural design, it must be ensured that the motor stator is completely Constrained, fixed and reliable. SUMMARY OF THE INVENTION [0003] The invention provides an electric water pump motor stator sub-assembly structure, which adopts the sub-assembly structure to install the motor...
Claims
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IPC IPC(8): H02K7/14H02K11/30F04D13/06F04D29/60
CPCF04D13/06F04D29/605H02K7/14H02K11/0094
Inventor 蹇波张群坡李险峰
Owner 富奥泵业(湖北)有限公司