CN219267309U

CN219267309U - Noise reduction device for environment test box

Info

Publication number: CN219267309U
Application number: CN202223030782.2U
Authority: CN
Inventors: 夏可瑜; 邓成臣
Original assignee: Dongguan City Simplewell Technology Co ltd
Current assignee: Dongguan City Simplewell Technology Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-06-27
Anticipated expiration: 2032-11-15

Abstract

The utility model relates to the technical field of noise reduction devices, in particular to a noise reduction device for an environmental test box. The noise reduction device for the environmental test box comprises a test box refrigerating unit body, wherein the test box refrigerating unit body comprises a shell, a working cavity and a hollow interlayer, the working cavity is arranged in the shell, and the hollow interlayer is arranged between the shell and the working cavity; the hollow interlayer is of a single-layer or multi-layer structure; a first sound insulation device is arranged on at least one inner wall of the working cavity; a second sound insulation device is arranged on at least one inner wall of the shell; the test box refrigerating unit body is provided with at least one heat radiating device component; a heat radiation port corresponding to the heat radiation device component is formed in the test box refrigerating unit body; and a sound insulation piece is arranged at the heat dissipation opening. The noise reduction device for the environmental test box solves the problems that the sound insulation effect is poor, and noise is diffused from a heat radiation opening during heat radiation.

Description

Noise reduction device for environment test box

Technical Field

The utility model relates to the technical field of noise reduction devices, in particular to a noise reduction device for an environmental test box.

Background

The environment test box can be called as a temperature and humidity test box or a constant temperature and humidity test box, can simulate different environment conditions such as high temperature and humidity, high temperature and low humidity, low temperature and high humidity, high temperature and low temperature, and the like, and is matched with a high-accuracy programming control and fixed-point control system which is easy to operate and learn, so that the optimal test performance is provided.

The existing sound insulation and noise reduction structure of the environment test box is characterized in that a layer of sound insulation material is adhered to the cover plate around the environment test box, a certain sound insulation effect can be achieved when equipment operates, and the sound insulation effect is poor. And, the inside of environment test case needs the heat dissipation when the environment test case is refrigerating, consequently usually has the louvre structure in apron design all around, and the noise of louvre structure department can not be controlled, can lead to noise diffusion.

The above drawbacks are to be overcome by those skilled in the art.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides the noise reduction device for the environment test box, which has good noise reduction effect and good heat dissipation effect.

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

the noise reduction device for the environmental test box comprises a test box refrigerating unit body, wherein the test box refrigerating unit body comprises a shell, a working cavity and a hollow interlayer, the working cavity is arranged in the shell, and the hollow interlayer is arranged between the shell and the working cavity; the hollow interlayer is of a single-layer or multi-layer structure;

a first sound insulation device is arranged on at least one inner wall of the working cavity; a second sound insulation device is arranged on at least one inner wall of the shell; the test box refrigerating unit body is provided with at least one heat radiating device component; a heat radiation port corresponding to the heat radiation device component is formed in the test box refrigerating unit body; and a sound insulation piece is arranged at the heat dissipation opening.

The refrigerator set body of the test box consists of a shell, a working cavity and a hollow interlayer, wherein the working cavity is arranged in the shell, and the hollow interlayer is arranged between the shell and the working cavity, so that the environment test box is of a double-layer or multi-layer structure; the first sound insulation device is arranged on at least one inner wall of the working cavity, and the second sound insulation device is arranged on at least one inner wall of the shell, so that the sound insulation effect is good; through set up at least one heat abstractor subassembly at the test box refrigerating unit body, set up the thermovent corresponding with the heat abstractor subassembly on the test box refrigerating unit body to set up the sound insulation piece in thermovent department, realize radiating in order to keep environmental test box normal operating, noise reduction is from thermovent department diffusion, thereby reduce noise diffusion in the environmental test box realizes the reduction environmental test box is to the noise pollution of environment production when using.

Further, the test box refrigerating unit body further comprises a base arranged at the bottom of the working cavity.

Further, the first sound insulation device and the second sound insulation device are both made of sound insulation materials. Preferably, the first sound insulation device and the second sound insulation device are all crest cottons. The interior of the wave crest cotton is filled with small gaps and a half-open hole structure, so that a large amount of injected sound wave energy can be absorbed, the attenuation effect on the sound wave is achieved, and the noise reduction effect is good.

Further, the heat dissipation device component is a first heat dissipation air inlet and a second heat dissipation air inlet which are arranged at the top of the working cavity; the heat dissipation port comprises a first heat dissipation port which is arranged at the top of the shell and corresponds to the first heat dissipation air inlet, and a second heat dissipation port which is arranged at the top of the shell and corresponds to the second heat dissipation air inlet.

Preferably, the first heat dissipation air inlet is provided with an air inlet fan; and an exhaust fan is arranged on the second heat radiation air inlet and used for enhancing the heat radiation effect.

Preferably, the air inlet fan and the air outlet fan are both outer rotor fans. The outer rotor fan adopts an outer rotor motor to directly drive the impeller, and has the advantages of high efficiency, low noise, light weight, compact structure and convenient installation and maintenance.

Further, the sound insulation piece arranged at the heat dissipation opening comprises a first wind shield arranged at the first heat dissipation opening and a second wind shield arranged at the second heat dissipation opening. Preferably, a third sound insulation device and a fourth sound insulation device are respectively arranged on one sides of the first wind shield and the second wind shield, which are close to the working cavity. The noise is reduced from diffusing to the external environment from the first heat radiation port and the second heat radiation port.

Preferably, the noise reduction device for the environmental test box further comprises a temperature sensor device arranged inside the test box refrigerating unit body, and can monitor the temperature inside the environmental test box.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model relates to a noise reduction device for an environmental test box, which comprises a test box refrigerating unit body, a working cavity and a hollow interlayer, wherein the test box refrigerating unit body is composed of a shell, the working cavity is arranged in the shell, and the hollow interlayer is arranged between the shell and the working cavity, so that the environmental test box is of a double-layer or multi-layer structure; secondly, the first sound insulation device is arranged on at least one inner wall of the working cavity, and the second sound insulation device is arranged on at least one inner wall of the shell, so that the sound insulation effect is good; and at least one heat radiating device component is arranged on the test box refrigerating unit body, a heat radiating opening corresponding to the heat radiating device component is formed in the test box refrigerating unit body, and a sound insulation piece is arranged at the heat radiating opening, so that heat is radiated to keep the environment test box to normally run, and noise is reduced from the heat radiating opening to diffuse, thereby reducing noise diffusion in the environment test box, and reducing noise pollution to the environment generated by the environment test box during use is realized.

2. The first sound insulation device and the second sound insulation device are both crest cotton. The interior of the wave crest cotton is filled with small gaps and a half-open hole structure, so that a large amount of injected sound wave energy can be absorbed, and the sound wave attenuation and noise reduction effects are good.

Drawings

FIG. 1 is a schematic diagram of the internal structure of an embodiment of the present utility model;

fig. 2 is a cross-sectional view of a right side view of one embodiment of the present utility model.

[ reference numerals description ] 1, a test box refrigerating unit body; 11. a housing; 111. a first heat radiation port; 112. a second heat radiation port; 12. a working chamber; 13. a base; 14. a hollow interlayer; 2. a first sound insulation device; 3. a second sound insulation device; 4. a heat sink assembly; 41. a first heat dissipation air inlet; 42. the second heat dissipation air inlet; 43. an inlet fan; 44. an exhaust fan; 5. a first wind deflector; 6. a second wind deflector; 7. a compressor.

Detailed Description

The present utility model will be described more fully hereinafter in order to facilitate an understanding of the present utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 2, a noise reduction device for an environmental test chamber according to an embodiment of the present utility model includes a test chamber refrigerating unit body 1, at least one first sound insulation device 2, at least one second sound insulation device 3, at least one heat dissipation device assembly 4, and at least one sound insulation member; the test box refrigerating unit body 1 comprises a shell 11, a working cavity 12, a base 13 and a hollow interlayer 14; the test box refrigerating unit body 1 is provided with a heat radiation port, and in the embodiment, the heat radiation port is arranged on the shell 11; the second sound insulation means 3 is provided on at least one inner wall of the housing 11; the working chamber 12 is arranged in the shell 11, and at least one inner wall of the working chamber 12 is provided with a first sound insulation device 2; the base 13 is arranged at the bottom of the working cavity 12, the base 13 is provided with a plurality of compressors 7, and the compressors 7 are noise sources when the environment test box runs; the hollow interlayer 14 is arranged between the shell 11 and the working cavity 12, and the hollow interlayer 14 has a single-layer or multi-layer structure; the test box refrigerating unit body 1 is of a double-layer or multi-layer structure, and a temperature sensor device is further arranged in the test box refrigerating unit body 1 and used for monitoring the internal temperature of the environmental test box. The heat radiator assembly 4 is arranged on the test box refrigerating unit body 1; in this embodiment, the heat dissipating device assembly 4 is installed on the top of the working chamber 12, and the heat dissipating device assembly 4 corresponds to a heat dissipating port formed on the housing 11; and a sound insulation piece is arranged at the heat dissipation opening. The noise reduction device for the environment test box has good noise reduction effect and good heat dissipation effect.

In this embodiment, the hollow interlayer 14 has a single-layer structure; in other embodiments, the hollow interlayer 14 may be provided with a double-layer structure or a triple-layer structure, and the utility model is not limited thereto. In this embodiment, the second sound insulation devices 3 are disposed on the inner walls of the housing 11; in other embodiments, the housing 11 may be provided with the second sound insulation device 3 on one or both of the inner walls, which is not limited thereto. In this embodiment, the first sound insulation devices 2 are disposed on the inner walls of the working chambers 12; in other embodiments, the working chamber 12 may be configured with one or both of the inner walls provided with the first sound insulation device 2, which is not limited thereto.

Specifically, in this embodiment, the first sound insulation device 2 and the second sound insulation device 3 are both made of a sound insulation material; preferably, the first sound insulation device 2 and the second sound insulation device 3 are all set to be crest cotton, the inside of the crest cotton is filled with tiny gaps and a half-open hole structure, and can absorb a large amount of injected sound wave energy, so that the sound wave is attenuated, the sound wave is prevented from being transmitted to the outside of the test box refrigerating unit body 1, and the noise reduction effect is good. In other embodiments, the first and second sound-insulating

devices

2 and 3 may be further configured as damping plates, and have a noise reduction function, which is not limited thereto.

The heat dissipating device assembly 4 comprises a first heat dissipating air inlet 41 and a second heat dissipating air inlet 42; the first heat dissipation air inlet 41 and the second heat dissipation air inlet 42 are arranged at the top of the working cavity 12; preferably, the first heat dissipation air inlet 41 is further provided with an air inlet fan 43; an exhaust fan 44 is further arranged on the second heat dissipation air inlet 42; preferably, the air inlet fan 43 and the exhaust fan 44 are external rotor fans, and the external rotor fans directly drive the impellers by adopting external rotor motors, so that the air inlet fan 43 and the exhaust fan 44 have high working efficiency, low noise, light weight, compact structure and convenient installation and maintenance. Specifically, the heat dissipation ports include a first heat dissipation port 111 and a second heat dissipation port 112; the first heat dissipation port 111 and the second heat dissipation port 112 are formed at the top of the housing 11; the first heat dissipation port 111 corresponds to the first heat dissipation air inlet 41; the second heat dissipation port 112 corresponds to the second heat dissipation air intake 42. When the intake fan 43 and the exhaust fan 44 are started, the effect of heat dissipation and ventilation can be enhanced.

In this embodiment, the sound insulation member installed at the heat dissipation port includes a first wind deflector 5, a second wind deflector 6; the first wind deflector 5 is arranged at the first heat dissipation port 111; the second wind shield 6 is arranged at the second heat dissipation port 112; the first wind deflector 5 and the second wind deflector 6 are respectively provided with a third sound insulation device and a fourth sound insulation device at one side close to the working cavity 12; specifically, in the present embodiment, the third sound insulation device and the fourth sound insulation device are both provided as sound insulation materials; preferably, the third sound insulation device and the fourth sound insulation device are all set to be crest cotton, so that the noise reduction effect is good, and the environment test box can realize noise reduction and diffusion from the first heat dissipation port 111 and the second heat dissipation port 112 while radiating and ventilating. In other embodiments, the third and fourth sound-insulating devices may be further configured as damping plates, and also have a noise-reducing function, which is not limited thereto.

Working principle: when the environment test box runs, noise generated by the compressor 7 arranged in the test box refrigerating unit body 1 diffuses to the periphery; noise is reduced through the first soundproof device 2; then continues to diffuse in the hollow interlayer 14, passing through the second sound insulation device 3, the noise is further reduced; simultaneously starting an air inlet fan 43 and an exhaust fan 44, wherein the air inlet fan 43 sucks air from the periphery of the first heat radiation opening 111 and the first wind shield 5 into the working cavity 12; the exhaust fan 44 diffuses air in the working cavity 12 to the periphery of the outside through the second heat radiation opening 112 and the second wind shield 6, so that ventilation and heat radiation of the test box refrigerating unit body 1 are realized; noise is reduced by the third soundproof device mounted on the side of the first wind deflector 5 close to the working chamber 12, and by the fourth soundproof device mounted on the side of the second wind deflector 6 close to the working chamber 12, and noise is reduced from being diffused into the external environment from the first heat radiation port 111 and the second heat radiation port 112. The noise reduction device for the environment test box has good noise reduction effect, and can reduce noise from the first heat dissipation port 111 and the second heat dissipation port 112 to the external environment while heat dissipation is realized, so that noise pollution to the environment generated by the environment test box during use is reduced.

The foregoing examples illustrate only a few embodiments of the utility model and are described in detail herein without thereby limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The noise reduction device for the environmental test box comprises a test box refrigerating unit body (1) and is characterized in that the test box refrigerating unit body (1) comprises a shell (11), a working cavity (12) arranged in the shell (11) and a hollow interlayer (14) arranged between the shell (11) and the working cavity (12); the hollow interlayer (14) is of a single-layer or multi-layer structure;

at least one inner wall of the working cavity (12) is provided with a first sound insulation device (2); at least one inner wall of the shell (11) is provided with a second sound insulation device (3); the test box refrigerating unit body (1) is provided with at least one heat radiating device component (4); a cooling port corresponding to the cooling device component (4) is formed in the test box refrigerating unit body (1); and a sound insulation piece is arranged at the heat dissipation opening.

2. Noise reduction device for environmental test chambers according to claim 1, characterized in that the test chamber freezer unit body (1) further comprises a base (13) mounted at the bottom of the working chamber (12).

3. A noise reduction device for an environmental test chamber according to claim 1, characterized in that the first sound insulation means (2) and the second sound insulation means (3) are each provided as sound insulation material.

4. A noise reduction device for an environmental test chamber according to claim 3, wherein the first and second sound insulation means (2, 3) are each of the peak wool type.

5. The noise reduction device for an environmental test chamber according to claim 1, wherein the heat dissipation device assembly (4) is a first heat dissipation air inlet (41) and a second heat dissipation air inlet (42) arranged at the top of the working chamber (12); the heat dissipation port comprises a first heat dissipation port (111) which is arranged at the top of the shell (11) and corresponds to the first heat dissipation air inlet (41) and a second heat dissipation port (112) which is arranged at the top of the shell (11) and corresponds to the second heat dissipation air inlet (42).

6. The noise reduction device for an environmental test chamber according to claim 5, wherein the first heat dissipation air inlet (41) is provided with an air inlet fan (43); an exhaust fan (44) is arranged on the second heat radiation air inlet (42).

7. The noise reduction device for an environmental test chamber according to claim 6, wherein the air inlet fan (43) and the exhaust fan (44) are external rotor fans.

8. A noise reduction device for an environmental test chamber according to claim 5, characterized in that the sound insulation provided at the heat sink comprises a first wind deflector (5) provided at the first heat sink (111) and a second wind deflector (6) provided at the second heat sink (112).

9. The noise reduction device for the environmental test chamber according to claim 8, wherein the side, close to the working cavity (12), of the first wind deflector (5) and the second wind deflector (6) is respectively provided with a third sound insulation device and a fourth sound insulation device.

10. A noise reducing device for an environmental test chamber according to any one of claims 1-9, characterized in that the noise reducing device for an environmental test chamber further comprises a temperature sensor device arranged inside the body (1) of the test chamber freezer.