CN214066332U

CN214066332U - Noise testing device

Info

Publication number: CN214066332U
Application number: CN202023037878.2U
Authority: CN
Inventors: 李海军; 罗自皓; 曾思翰
Original assignee: Zhuhai Cosmx Power Co Ltd
Current assignee: Zhuhai Cosmx Power Co Ltd
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-08-27
Anticipated expiration: 2030-12-15

Abstract

A noise testing device, comprising: the sound insulation box is internally provided with a test article placing position; a noise sensor disposed in the soundproof box; the pressing element is arranged in the sound insulation box and is positioned above the test article placement position; a pressing member driving unit that drives the pressing member to move up and down, the pressing member driving unit being provided outside the soundproof case; a controller that controls the pressing member driving unit. The utility model discloses can swiftly test out conveniently and press the noise value size of making the battery production, it is unified to cut test condition, and the test data accuracy is high, can provide data support for choosing of battery best structure, is favorable to reducing development cycle and research and development expense, improves the battery noise immunity ability.

Description

Noise testing device

Technical Field

The utility model belongs to the technical field of the noise test, concretely relates to battery noise testing arrangement.

Background

The low delay and the high network speed brought by the 5G technology can greatly promote the popularization of cloud services, and future computer equipment does not need strong performance any more and can be developed towards a thinner direction. The continuous improvement of portability requires further reduction of the size of the body, the miniaturization of computer equipment, especially notebook computers, leads to an increasingly narrow installation space of the battery, the battery structure becomes thinner, the probability of noise generation of the notebook computer during the press test is increased, and the problem of battery noise is solved by various battery manufacturers.

The battery of the notebook computer generates noise mainly due to the following two aspects: firstly, the noise caused by the characteristics of the PET material is different, and different noises are generated due to different thicknesses of the PET material; secondly, the sound of glue bonding, the noise can be produced when glue and other materials are bonded. At present, no equipment specially used for testing battery noise exists, a battery manufacturer generally entrusts testing of the battery noise to a third party for testing, the testing period is long, and the cost is high. Therefore, it is highly desirable to develop a device that can conveniently and quickly perform a battery noise test.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a noise test device for battery noise test.

In order to achieve the above object, the present invention adopts the following technical solutions:

a noise testing device, comprising: the sound insulation box is internally provided with a test article placing position; a noise sensor disposed in the soundproof box; the pressing element is arranged in the sound insulation box and is positioned above the test article placement position; a pressing member driving unit that drives the pressing member to move up and down, the pressing member driving unit being provided outside the soundproof case; a controller that controls the pressing member driving unit.

According to the above technical scheme, the utility model discloses a soundproof box founds a airtight test space of relative silence, place the battery in soundproof box, the noise value that produces when pressing down through the noise sensor record battery of soundproof box, press down the component and can use balanced power to press down the battery, make test condition unified, the test data accuracy is high, can swiftly conveniently test and press down the noise value size that makes the battery production, it provides data support to select for the best structure of battery, be favorable to reducing development cycle and research and development expense, improve the battery noise immunity performance, satisfy the customer end demand, promote user experience. The method can be used for noise test of polymer lithium ion batteries of consumer electronics products.

As an embodiment of the noise testing apparatus of the present invention, a window is provided on a wall plate of the sound insulation box.

As the utility model discloses noise testing arrangement's an embodiment, the wallboard inboard of sound-proof box is provided with the amortization bubble cotton, the wallboard of sound-proof box is the bakelite board, and the door plant is transparent ya keli board.

Through window or transparent acrylic plate, the testing condition in the sound-proof box of tester observation of being convenient for.

As an embodiment of the noise testing apparatus of the present invention, the noise sensor is a noise meter.

As an embodiment of the utility model discloses noise testing arrangement, it is fixed to be provided with in the sound-proof box noise sensor's mounting bracket, the mounting bracket sets up on the slide rail of horizontal extension and can follow the slide rail removes.

As an embodiment of the utility model discloses noise testing arrangement, be provided with waist type hole on the mounting bracket, noise sensor passes through waist type hole install in on the mounting bracket, the major axis direction in waist type hole is vertical direction.

The mounting position of the noise sensor can be adjusted in the vertical and horizontal directions, so that the requirement of multi-position noise testing is met.

As an embodiment of the noise testing apparatus of the present invention, the pressing member is a weight.

As an embodiment of the noise testing device, the bottom of the weight is provided with the silica gel cover.

As an embodiment of the noise testing apparatus of the present invention, the pressing member driving unit is a motor, the top of the weight is connected to a rope, the rope bypasses a pulley provided at the top of the sound insulation box, and directly or indirectly connects to an output shaft of the motor.

As an embodiment of the utility model discloses noise testing arrangement, the motor is the silence motor, the silence motor sets up in a whistle box, the whistle box with the sound-proof box contactless.

Adopt the weight as pressing the component, the motor is as drive unit, realizes pressing the action of pressing the component through mechanical transmission structure, and stable in structure can guarantee that test condition is unified, provides accurate measured data.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is an exploded schematic view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

fig. 3 is the schematic structural view of the weight of the embodiment of the present invention.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings, wherein for convenience of illustration, the drawings showing the structure of the device are not to scale and are partially enlarged, and the drawings are only examples, which should not limit the scope of the invention. It should be noted that the drawings are in simplified form and are not to precise scale, which is only used for the purpose of facilitating and clearly assisting in the description of the embodiments of the present invention.

As shown in fig. 1 and 2, the noise test apparatus of the present embodiment includes a soundproof case 1, a noise sensor 2, a pressing member 3, a pressing member driving unit 4, and a controller 5. Noise sensor 2 sets up in sound-proof box 1, and sound-proof box 1 of this embodiment comprises 5 bakelite boards 1-1 and an acrylic board 1-2, and bakelite board 1-1 is as sound-proof box 1's wallboard, is provided with amortization bubble cotton 6 in bakelite board 1-1's inboard, and amortization bubble cotton 6 is used for the amortization, can reduce the influence of external environment noise to the test on the one hand, and on the other hand also can reduce the sound that produces when pressing the test and run off, influence the accuracy of test numerical value. The acrylic plate 1-2 is a door plate of the sound insulation box 1, and a test object can be conveniently taken and placed after the acrylic plate 1-2 is opened. In order to ensure the sealing property of the soundproof box 1, a weather strip (not shown) is provided on the frame of the acrylic plate 1-2. The transparent acrylic plate 1-2 can also be used as a window at the same time, and a tester can conveniently observe the internal condition of the sound insulation box 1 during testing. According to the size of the existing battery, the size of the sound insulation box 1 can be 500 × 500mm, and the size saves space, is convenient to store and use. A test article placing position 1a is arranged on the bottom plate of the sound insulation box 1, and during noise test, the battery is flatly placed on the test article placing position 1 a.

The noise sensor 2 of this embodiment adopts the noise meter, is provided with the mounting bracket 7 of fixed noise sensor 2 in sound-proof box 1, and the mounting bracket 7 of this embodiment sets up on fixing the slide rail 8 on sound-proof box 1 back wallboard, and slide rail 8 sets up along the horizontal direction, and slide rail 8 removal can be followed to mounting bracket 7 to can adjust the position of noise sensor 2 on the horizontal direction. Meanwhile, a waist-shaped hole 7a is processed in the mounting frame 7, the direction of the long axis of the waist-shaped hole 7a is the vertical direction, the noise sensor 2 is mounted on the mounting frame 7 through the waist-shaped hole 7a, the mounting height of the noise sensor 2 can be adjusted through the waist-shaped hole 7a, the noise values at different distances can be tested, and the requirement of multi-position noise testing is met.

The pressing member 3 is provided inside the soundproof case 1, the pressing member driving unit 4 is provided outside the soundproof case 1, the pressing member driving unit 4 drives the pressing member 3 to move up and down inside the soundproof case 1, and the pressing member driving unit 4 of the present embodiment employs a silent motor. The pressing member 3 is located above the test article placement site 1a, and can be pressed down on or away from the battery under the control of the pressing member driving unit 4. By disposing the pressing member driving unit 4 outside the soundproof case 1, the influence of the noise test can be reduced. The pressing element 3 of this embodiment is a weight, a pair of pulleys 9 arranged at intervals are arranged on the top wall plate of the sound insulation box 1, a rope 10 bypasses the two pulleys 9, one end of the rope is connected with the weight, the other end of the rope extends out of the sound insulation box 1 and is connected with an output shaft of a silent motor through a transmission structure, and the transmission structure of this embodiment is a transmission shaft, a transmission belt and a synchronous wheel which are commonly used in mechanical design. As the preferred embodiment of the present invention, in order to prevent the weight from impacting when contacting the battery, the rigid contact is prevented from generating large noise, which results in inaccurate test data, and as shown in fig. 3, a silica gel cover 3a is disposed at the bottom of the weight. In order to further prevent the vibration generated by the motor from affecting the noise test, the present embodiment provides the mute motor inside the mute box 11, and the mute box 11 is not in contact with the sound insulation box 1. The press stress is adjusted by the weight of the weight, the weight with different weights can be replaced, or the weight can be adjusted in a superposition mode.

The controller 5 is used for controlling the operating state of the pressing element driving unit 4, and further controlling the actions of the pressing element 3, such as start, stop, speed, frequency, and the like. The controller 5 is provided with a power switch, a test switch, a frequency adjusting knob and a pressing frequency adjusting knob. The frequency adjusting knob is used for controlling the rotating speed of the mute motor and further controlling the frequency of the weight pressing the battery. The press number adjusting button can adjust the press number required by the test.

The following explains the method of use of the present invention:

during testing, the acrylic plate 1-2 is opened, the test battery is flatly placed to a test article placing position 1a in the sound insulation box 1, the height of the noise meter is adjusted according to testing requirements, then the pressing position of the battery is adjusted, and the noise test pressing point is located right below the weight; the weight of the weight is adjusted according to the test requirement, the acrylic plate 1-2 is closed, the power switch of the controller 5 is opened, the pressing frequency and the pressing frequency are adjusted according to the test requirement, the test switch is started, and then the test data can be recorded.

The battery noise testing method of the utility model can quickly test the battery noise values of different materials, different pressing strength and different positions, and the sound insulation box forms a relatively quiet closed space, can isolate external interference, has sound insulation effect and is convenient to operate; the pressing element can press the battery by using balanced force, so that the deformation of the battery is consistent, the test conditions are uniform, and the recorded noise value has reference value.

Of course, the technical concept of the present invention is not limited to the above embodiments, and many different specific schemes can be obtained according to the concept of the present invention, for example, in the above embodiments, the door panel of the sound insulation box is made of transparent acrylic plate, so that the condition inside the sound insulation box can be observed through the acrylic plate, but the cover plate can also be a bakelite plate, a window can be arranged on the bakelite plate, and the condition inside the sound insulation box can also be observed; for another example, the controller may also be in communication with the noise sensor, and the noise value collected by the noise sensor is displayed on the controller; such modifications and equivalents are intended to be included within the scope of the present invention.

Claims

1. A noise testing device, comprising:

the sound insulation box is internally provided with a test article placing position;

a noise sensor disposed in the soundproof box;

the pressing element is arranged in the sound insulation box and is positioned above the test article placement position;

a pressing member driving unit that drives the pressing member to move up and down, the pressing member driving unit being provided outside the soundproof case;

a controller that controls the pressing member driving unit.

2. The noise testing apparatus of claim 1, wherein: a window is arranged on one wall plate of the sound insulation box.

3. The noise testing apparatus of claim 1, wherein: the wallboard inboard of sound-proof box is provided with the amortization bubble cotton, the wallboard of sound-proof box is the bakelite board, and the door plant is transparent ya keli board.

4. The noise testing apparatus of claim 1, wherein: the noise sensor is a noise meter.

5. The noise testing apparatus of claim 1, wherein: and the sound insulation box is internally provided with a mounting rack for fixing the noise sensor, and the mounting rack is arranged on a slide rail extending horizontally and can move along the slide rail.

6. The noise testing apparatus of claim 5, wherein: the noise sensor is characterized in that a waist-shaped hole is formed in the mounting frame, the noise sensor is installed on the mounting frame through the waist-shaped hole, and the long axis direction of the waist-shaped hole is vertical.

7. The noise testing apparatus of claim 1, wherein: the pressing element is a weight.

8. The noise testing apparatus of claim 7, wherein: and a silica gel sleeve is arranged at the bottom of the weight.

9. The noise testing apparatus of claim 7, wherein: the pressing element driving unit is a motor, the top of the weight is connected with a rope, and the rope bypasses a pulley arranged at the top of the sound insulation box and is directly or indirectly connected with an output shaft of the motor.

10. The noise testing apparatus of claim 9, wherein: the motor is a mute motor, the mute motor is arranged in a sound-deadening box, and the sound-deadening box is not in contact with the sound-insulating box.