Vibration preventing automobile instrument motor

An automobile instrument and motor technology, applied in the field of vibration isolation and vibration reduction, can solve the problems of low reliability of automobile instrument motor, unstable rotation of instrument pointer, large friction resistance, etc. The effect of small resistance and uniform stress

Inactive Publication Date: 2009-08-12
WUXI MCROT MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When working, due to the large change of working temperature and large vibration in the car, some parts of the automobile instrument motor, such as the output shaft gear, sometimes have excessive frictional resistance due to v

Method used

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  • Vibration preventing automobile instrument motor
  • Vibration preventing automobile instrument motor
  • Vibration preventing automobile instrument motor

Examples

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Example Embodiment

[0017] Combine figure 1 with figure 2 The anti-vibration automobile instrument motor of the present invention includes left and right drive coils 16, 17, left and right drive coil cores 14, 15, stator plates 20, motor drive gear 18, intermediate gear 19, output shaft gear 1, upper cover 3 and lower Cover 13. A boss 2 integrated with the gear 1 is provided on the upper surface of the output shaft gear 1. The boss 2 is a round boss, and the diameter of the boss 2 is 3 to 5 mm. A stainless steel spring sheet 4 is arranged between the inner surface of the gear 1 and the upper cover 3. The middle hole of the stainless steel spring sheet 4 is matched with the boss 2, and the convex surface of the stainless steel spring sheet 4 is in contact with the surface of the gear 1, such as image 3 with Figure 4 . The inner diameter R1 of the stainless steel spring plate 4 is equal to the diameter of the boss 2 plus 0.3 mm, the forming radius R of the stainless steel spring plate 4 is equal to...

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Abstract

The invention discloses an anti-vibration motormeter motor. An upper surface of an output shaft gear is provided with a boss integrated with the gear; a stainless steel spring piece is arranged between the gear and the inner surface of an upper cover, a central hole of the stainless steel spring piece is matched with the boss, and the convex surface of the stainless steel spring piece is contacted with the surface of the gear; the inner surface of the upper cover is provided with four protrusions which are provided with a hole respectively, and four silicon rubber bars are arranged in the four holes respectively; and when the upper cover is matched with a lower cover, two silicon rubber bards are pressed on the two ends of left coil core and the other two silicon rubber bars are pressed on the two ends of right coil core. During the operation of the anti-vibration motormeter motor, uniform pressure provided with the stainless steel spring piece enables the output shaft gear to operate smoothly during operation; and a silicon rubber spring allows the coil cores and a stator piece to be attached together tightly during operation without fastening by a bolt, and the magnetic resistance on magnetic paths of coils is reduced. The anti-vibration motormeter motor can operate stably on various vehicles in an environment at 40 DEG C below zero to 150 DEG C.

Description

technical field [0001] The invention belongs to vibration isolation and damping technology, in particular to an anti-vibration structure for an automobile meter motor. Background technique [0002] The working environment of automotive instrument motors is at a temperature of -40°C to 150°C, with large vibration and high operating speed, so the reliability requirements for instrument motors are high. [0003] The original automobile instrument motor has no anti-vibration structure, and the coil iron core and the stator piece are connected by bolts. When working, due to the large change of working temperature and large vibration in the car, some parts of the automobile instrument motor, such as the output shaft gear, sometimes have excessive frictional resistance due to vibration, resulting in unstable rotation of the instrument pointer; bolts are connected under alternating temperature and load. It is easy to loosen under the action, which makes the reliability of the autom...

Claims

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Application Information

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IPC IPC(8): H02K5/24H02K7/116
Inventor 金闻瑞
Owner WUXI MCROT MOTOR
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