An inertial vibrator based on a double-coil single-moving magnet structure based on air-cooled heat dissipation
A technology of moving magnets and double coils, applied in the field of inertial vibrator, can solve the problems of low energy density, complex installation structure, poor heat dissipation performance of vibrator, etc., and achieve high force output capability, enhanced magnetic field, and heat dissipation performance enhanced effect
Active Publication Date: 2019-05-17
INST OF ACOUSTICS CHINESE ACAD OF SCI
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[0006] The object of the present invention is to provide an inertial vibrator based on an air-cooled and heat-dissipating double-coil single-moving magnet structure in order to solve the existing shortcomings of poor heat dissipation performance, low energy density, and complicated installation structure. Using the inertial vibrator can improve the heat dissipation capacity of the vibrator and improve its reliability of long-term and high-power operation
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[0031] An inertial vibrator based on an air-cooled and heat-dissipating double-coil single-moving magnet structure according to the present invention will be described in detail below with reference to the drawings and embodiments.
[0032] Such as figure 1 As shown, the inertial vibrator based on the air-cooled and heat-dissipating dual-coil single-moving magnet structure provided by the present invention includes: a moving magnet 1, a casing 2, an upper leaf spring 8, a lower leaf spring 9, an upper coil 13, and a lower coil 14 and heat sink. Both the upper leaf spring and the lower leaf spring 9 are annular plate-shaped elastic structures, which are used to support the moving magnet 1 in the casing 2, and limit the non-axial displacement of the moving magnet 1. The two sides of the moving magnet 1 The end is a symmetrically arranged annular tubular structure, so that the magnetic field generated by the moving magnet 1 forms a loop along the tube wall of the annular tubular...
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The invention provides an inertia type vibration exciter of a double-coil single-action magnet structure based on convection heat dissipation. The inertia type vibration exciter comprises a movable magnet (1), an upper coil (13), a lower coil (14), plate springs, a housing (2) and a heat dissipation device; the two ends of the movable magnet (1) are of annular tubular structures arranged symmetrically, so that a magnetic field generated by the movable magnet (1) forms a loop along the tube walls of the annular tubular structures; an annular hole (22) is formed in the end face of the outer side of each annular tubular structure; the upper coil (13) and the lower coil (14) are symmetrically located in the two annular holes (22); after the upper coil (13) and the lower coil (14) are connected with reverse alternating current, equidirectional electromagnetic exciting force is formed between the upper coil (13) and the movable magnet (1) and between the lower coil (14) and the movable magnet (1), so that relative movement is generated between the movable magnet (1) and the housing (2), and vibration exciting is formed; and the heat dissipation device cools the inertia type vibration exciter by driving air to flow. The heat dissipation capability of the inertia type vibration exciter is improved, the long-time and high-power working reliability of the inertia type vibration exciter is improved.
Description
technical field [0001] The invention relates to the technical field of mechanical vibration, in particular to an inertial vibrator based on an air-cooled and heat-dissipating double-coil single-moving magnet structure. Background technique [0002] A vibration exciter (referred to as an exciter, also known as an actuator) is a vibration excitation device that converts electrical energy into mechanical energy. Driven by an input signal, it excites the target in the form of an output force to generate the expected vibration. With the advancement of technology, in various fields such as scientific research, military affairs, automobiles, entertainment, etc., as people's demand for vibration generation or control becomes stronger, the application of vibration exciters is becoming more and more extensive. [0003] According to the different transducer devices, the exciter can be divided into electromagnetic type, piezoelectric type, magnetostrictive type, hydraulic type and other...
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IPC IPC(8): B06B1/08
Inventor 安峰岩孙红灵马龙华程晓斌杨军
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI