Non-contact vibration damping linear vibration motor and implementation method thereof

A vibration damping, linear vibration technology, applied in electromechanical devices, electrical components, electric components, etc., can solve problems such as changing the spring stress distribution, damping characteristics affecting customer experience, etc., to maintain vibration damping unchanged, reduce magnetic field leakage, The effect of increasing space utilization

Active Publication Date: 2020-09-29
ZHEJIANG DONGYANG CHENGJI ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with increasingly harsh environmental test conditions, its damping characteristics that vary with temperature have become a major defect that affects customer experience
On this basis, the industry also proposes to use elastic solids such as foam and elastic glue as loss parts to lose the vibration kinetic energy after power failure, but because it often acts on the spring (contact vibration damping), it changes the stress distribution of the spring itself , which brings reliability problems of lifetime

Method used

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  • Non-contact vibration damping linear vibration motor and implementation method thereof
  • Non-contact vibration damping linear vibration motor and implementation method thereof
  • Non-contact vibration damping linear vibration motor and implementation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see Figure 1-8 , the present invention provides the following technical solutions: a linear vibration motor with non-contact vibration damping, including a casing 1 and a lower bracket 11, a stator assembly is arranged above the lower bracket 11, and a vibrator assembly is sleeved outside the stator assembly The outside of the vibrator assembly is covered with a casing 1, and the two sides of the vibrator assembly are connected to the casing 1 through a spring 9. The spring 9 is an S-shaped structure. The steel group, the top of the magnetic steel group is provided with a balance weight 4.

[0040] Further, the inside of the counterweight 3 is provided with a receiving groove 31 for accommodating the balance weight 4 and the magnetic steel group, and the upper part of the counterweight 3 is welded with the bracket 2 .

[0041] By adopting the above technical solution, the balance weight 4 is embedded in the interior of the accommodation groove 31 and welded to the bra...

Embodiment 2

[0059] see Figure 9 , The difference between this embodiment and Embodiment 1 is: further, the magnetic steel group includes three permanent magnets 5 arranged side by side.

[0060] Further, the implementation method of the non-contact vibration damping linear vibration motor according to the present invention includes the following steps:

[0061] (1), the casing 1 and the lower bracket 11 form a closed cavity for accommodating the internal stator assembly and vibrator assembly;

[0062] (2), the counterweight 3, the balance weight 4 and the magnetic steel group constitute the vibrator assembly, and the magnetic steel group provides a magnetic field for the motor drive;

[0063] (3), the pole core 7, the loss sheet 8, the coil 12 and the FPC10 form a stator assembly, and the coil 12 and the FPC10 form a circuit, which generates an electric field when electrified, and the electric field interacts with the magnetic field to drive the motor to vibrate;

[0064] (4), the spri...

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Abstract

The invention discloses a linear vibration motor with non-contact vibration damping. The motor comprises a casing and a lower support, wherein a stator assembly is arranged above the lower support, the stator assembly is sleeved with a vibrator assembly, the vibrator assembly is sleeved with a machine shell, two sides of the vibrator assembly are connected with the machine shell through springs, the springs are of an S-shaped structure, the vibrator assembly comprises a balancing weight, a magnetic steel set is arranged in the balancing weight, and a balance block is arranged above the magnetic steel set. The invention further discloses an implementation method of the non-contact vibration damping linear vibration motor. Compared with a linear vibration motor in the prior art, the structure is more compact, and the linear vibration motor is extremely suitable for motors with small sizes or small vibration direction sizes, the spring disclosed by the invention is small in occupied space, but can provide a relatively large deformation space, so the vibration sense under a small size is ensured, and the space utilization rate of a product is increased.

Description

technical field [0001] The invention belongs to the technical field of vibration motors, and in particular relates to a non-contact vibration damping linear vibration motor and a realization method thereof. Background technique [0002] In recent years, with the continuous expansion of the market for smart consumer electronic devices such as mobile phones, it has driven the continuous upgrading of related industries. Comparisons are made in terms of vision, hearing, camera, touch, etc., in order to win the favor of more consumers. Linear vibrating motors, as premium components for tactile sensation, are playing an increasingly critical role in the competition. However, due to cost differences, domestic mobile phones are currently more inclined to small-sized linear motors. How to maintain high performance in a small volume has become a technical direction of continuous research. [0003] At the same time, in order to reduce the vibration stop time after the linear motor is...

Claims

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Application Information

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IPC IPC(8): H02K33/02H02K33/18H02K5/02
CPCH02K33/02H02K33/18H02K5/02H02K33/16H02K5/24H02K41/02H02K2203/03
Inventor 黄浩静王欣欣
Owner ZHEJIANG DONGYANG CHENGJI ELECTRO MECHANICS CO LTD
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