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CN-224231878-U - Capacitor noise test box

CN224231878UCN 224231878 UCN224231878 UCN 224231878UCN-224231878-U

Abstract

The utility model discloses a capacitor noise test box which comprises a box body, wherein a box door is hinged to the side wall of the box body, an adjusting component is arranged at the top of an inner cavity of the box body, a radio is arranged at the top of the inner cavity of the box body, a plurality of vibration reduction components are arranged at the bottom of the box body, a capacitor is placed at the top of a movable seat, noise test is carried out through the radio, a motor is opened to drive a rotating shaft to rotate, a winding roller drives a pull rope to wind, then the position of the movable seat is adjusted, noise attenuation data of the capacitor along with the change of distance is conveniently tested, an electric push rod is opened to drive a connecting plate to move, a clamping block is conveniently locked to prevent the capacitor from sliding down, and secondly, when the external environment vibrates, the box body drives a supporting block to vibrate, buffering vibration reduction is conveniently carried out through the vibration reduction components, and the influence of a sound source caused by the vibration of the external environment on a noise test result is conveniently reduced.

Inventors

  • ZHU HUIMING
  • AN CHUNYAN
  • ZHENG TUAN

Assignees

  • 无锡市华裕电子有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (7)

  1. 1. The utility model provides a condenser noise test box, its characterized in that, including box (1), box (1) lateral wall articulates there is chamber door (2), box (1) inner chamber top is equipped with adjusting part (3), adjusting part (3) are including fixed block (301), fixed block (301) bottom is equipped with fixed box (302), fixed box (302) lateral wall is equipped with motor (303), motor (303) output is equipped with pivot (304), pivot (304) circumference outer wall both sides all are equipped with wind-up roll (305), two wind-up roll (305) circumference outer wall all is equipped with stay cord (306), two stay cord (306) bottom is equipped with removes seat (307), pivot (304) circumference outer wall is equipped with gear (308), fixed box (302) inner chamber bottom is equipped with electric putter (309), electric putter (309) output is equipped with connecting plate (310), connecting plate (310) lateral wall top is equipped with fixture block (311), box (1) inner chamber top is equipped with radio receiver (4), box (1) bottom is equipped with a plurality of subassemblies (5).
  2. 2. The capacitor noise test box according to claim 1, wherein the vibration reduction assembly (5) comprises a fixed seat (501), a plurality of damping spring vibration absorbers (502) are arranged at the bottom of an inner cavity of the fixed seat (501), a supporting block (503) is arranged at the top of each damping spring vibration absorber (502), a plurality of rotating grooves (504) are formed in two side walls of each supporting block (503), and a plurality of balls (505) are rotatably connected to the circumferential inner walls of the rotating grooves (504).
  3. 3. The capacitor noise test box according to claim 2, wherein the rotating shaft (304) is rotatably connected with the side wall of the inner cavity of the box body (1), and the size and the position of the gear (308) are matched with those of the clamping block (311).
  4. 4. A capacitor noise testing box according to claim 3, wherein the side walls of the two sides of the movable seat (307) are provided with limit grooves (312), and the bottom of the inner cavity of the box body (1) is provided with two limit rods (313).
  5. 5. The capacitor noise test box of claim 4, wherein the top opening of the movable seat (307) is upward, and the size and position of the limit groove (312) are matched with those of the limit rod (313).
  6. 6. The capacitor noise test box according to claim 5, wherein the diameter of the opening of the rotary groove (504) is smaller than the diameter of the ball (505), and the ball (505) is rotationally connected with the side wall of the inner cavity of the fixing seat (501).
  7. 7. The capacitor noise test box according to claim 6, wherein the inner wall of the box body (1) is provided with a sound insulation plate (6), and the sound insulation plate (6) is made of polyester fiber sound-absorbing cotton.

Description

Capacitor noise test box Technical Field The utility model relates to the technical field of noise test boxes, in particular to a capacitor noise test box. Background Two conductors close to each other, a layer of non-conductive insulating medium is sandwiched between them to form a capacitor, and the capacitor plays an important role in circuits of tuning, bypass, coupling and filtering, etc., and the sound insulation box (noise test box) is used for making sound absorption treatment in the sound insulation space so as to make it become a small-size soundless space in which some small-size products, such as motor, sound equipment, transformer and ballast, etc., can be tested. The patent document with the publication number of CN212432332U provides a gear motor noise test box, which comprises a test box, the gear motor noise test box can comprehensively process a plurality of groups of data through a plurality of groups of tests, errors caused by single measurement are avoided, the measurement precision is improved, the noise measurement of a first radio and a second radio is integrated, the data of different noises generated in solid and air media for noise can be realized, the targeted noise improvement is convenient to carry out at the later stage, so that better NVH is obtained, a cover plate can be limited through a limiting plate, the limiting plate is made of silica gel material, good tightness is realized, the fixing plate and the motor mounting plate are clamped through the rotating block, the motor mounting plate and the motor are structurally fixed, the fixing plate and the motor mounting plate are separated through the rotating block which rotates reversely after the test is finished, the test can be carried out by changing different motors, the dismounting structure is reliable, the operation is convenient, and the gear motor noise test box has extremely strong practicability. Although the device has more beneficial effects, the device still has the following problems that the position of a test platform is fixed in the using process of the device, so that noise attenuation data of a capacitor along with the change of distance is inconvenient to test, and secondly, the test box is directly contacted with the ground in the using process of the device, so that the influence of a sound source caused by external environment vibration on a noise test result is easy to cause, and in view of the problem, the capacitor noise test box is proposed. Disclosure of utility model This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model. 1. The technical problems to be solved are as follows: The utility model is provided for solving the problems that the position of the testing platform is fixed, noise attenuation data of a capacitor which is inconvenient to test along with the change of distance and the testing box is in direct contact with the ground, and the influence of a sound source caused by external environment vibration on a noise testing result is easy to occur. Therefore, the utility model aims to provide the capacitor noise test box which is convenient for adjusting the distance between the movable seat and the radio, is convenient for testing noise attenuation data of the capacitor along with the change of the distance, is convenient for vibration reduction, and reduces the influence of a sound source caused by external environment vibration on a noise test result. 2. The technical scheme is as follows: in order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided: The utility model provides a condenser noise test box, its includes the box, the box lateral wall articulates there is the chamber door, box inner chamber top is equipped with adjusting part, adjusting part includes the fixed block, the fixed block bottom is equipped with fixed box, fixed box lateral wall is equipped with the motor, the motor output is equipped with the pivot, pivot circumference outer wall both sides all are equipped with the wind-up roll, two the wind-up roll circumference outer wall all is equipped with the stay cord, two the stay cord bottom is equipped with removes the seat, pivot circumference outer wall is equipped with the gear, fixed box inner chamber bottom is equipped with electric putter, electric putter output is equipped with the connecting plate, connecting plate lateral wall top is equipped with the fixture block, box inner chamber top is equipped with the radio, the box bottom is equipped with a plurality of damping subassembly. The diameter at the two ends of the wind-up roller is larger than the diameter in the middle of the wind-u