CN218213072U

CN218213072U - Rotatable wave-transparent incubator and test system

Info

Publication number: CN218213072U
Application number: CN202221312842.7U
Authority: CN
Inventors: 王守源; 宋振波; 安少赓
Original assignee: China Academy of Information and Communications Technology CAICT
Current assignee: China Academy of Information and Communications Technology CAICT
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2023-01-03
Anticipated expiration: 2032-05-27

Abstract

The application discloses rotatable wave-transparent incubator and test system has solved the problem that prior art temperature control device can produce great influence to radio frequency empty port test environment. The rotatable wave-transparent incubator comprises a wave-transparent incubator body, a rotating shaft and a control device. The rotating shaft is fixedly arranged on the outer wall of the wave-transparent box body, and the rotating shaft drives the wave-transparent box body to rotate by taking the axis as the center when rotating. And the control device is used for controlling the temperature in the wave-transparent box body and is fixedly connected with the outer side of the wave-transparent box body. A test system comprises the rotatable wave-transparent incubator and an object stage. The objective table comprises a base and a rotating shaft bracket. The rotating shaft support is provided with a driving device and is arranged on the base, and the rotating shaft is driven to rotate by taking the axis of the rotating shaft as a center. The application makes a local controllable high low temperature change environment, is convenient for form the controllable environment of cold and hot change in the incubator to reduce objects such as temperature control facility and give the influence that the radio frequency air interface test brought.

Description

Rotatable wave-transparent incubator and test system

Technical Field

The utility model relates to a novel mobile communication test field especially relates to a rotatable wave-transparent incubator and test system.

Background

In the process of demonstration, design and development of radio frequency air interface integrated equipment (i.e. equipment with an antenna tightly combined with a radio frequency unit and not capable of being disassembled) such as a 5G base station and the like, in order to ensure the radio frequency performance of the equipment, the performance of the equipment is often checked by means of a radio frequency air interface test. Radio frequency air interface tests are typically performed in anechoic environments. The anechoic chamber is an electromagnetic shielding chamber with the inner wall coated with radio frequency wave absorbing material, so that the electromagnetic field distribution of the anechoic chamber can be prevented from being influenced by the reflection of an electromagnetic field inside the anechoic chamber, and the electromagnetic field outside the anechoic chamber can be prevented from entering the inside of the anechoic chamber to influence the internal electromagnetic environment.

At present, no suitable high-low temperature environment test facility applied to mobile communication and information technology wireless transmission air interface measurement exists. The existing high-low temperature environment facilities cannot meet the air interface test requirements due to the shielding property. Some simple alternative ways also bring serious interference to the test because the conditions of the air interface test are not satisfied.

Especially, the control device for controlling the temperature is arranged inside the greenhouse, and no matter what material is adopted by the control device, the control device can cause interference to electric waves in the greenhouse, so that the accuracy of the radio frequency air interface test is seriously influenced, and the requirement of the radio frequency air interface test cannot be met.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a rotatable wave-transparent incubator and a test system, and solves the problem that a temperature control device in the prior art is installed inside an incubator and influences the accuracy of radio frequency air interface test.

The embodiment of the application provides a rotatable wave-transparent incubator, which comprises a wave-transparent incubator body, a rotating shaft and a control device. The rotating shaft is fixedly arranged on the outer wall of the wave-transparent box body, and the rotating shaft drives the wave-transparent box body to rotate by taking the axis of the rotating shaft as a center when rotating. The control device is used for controlling the temperature in the wave-transparent box body and is fixedly arranged at the bottom of the wave-transparent box body.

The embodiment of the application also provides a test system, which comprises the rotatable wave-transparent incubator and an object stage. The objective table comprises a base and a rotating shaft bracket. The rotating shaft support is provided with a driving device and is fixedly arranged on the base, and the rotating shaft support drives the rotating shaft to rotate by taking the axis of the rotating shaft as a center through the driving device.

Preferably, the base of the object stage rotates along the horizontal direction, and the wave-transparent box body is positioned at the center of the horizontal angular rotation.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

the local controllable high-low temperature changing environment is manufactured, so that the environment with controllable cold and hot changes can be conveniently formed in the incubator. Completely meets the internationally recognized air interface test requirement. The influence of the temperature control facility on the radio frequency air interface test is reduced to the minimum. Is the solution with highest precision and closest to the requirement of the industry.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a structural diagram of an embodiment of a rotatable wave-transparent incubator according to the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

A rotatable wave-transparent incubator comprises a wave-transparent incubator body 1, a rotating shaft 2 and a control device 3.

The wave-transparent box body is made of a material with a low enough dielectric constant under the condition of meeting the performance of high-low temperature isolation, so that the influence caused by the introduction of the wave-transparent box body is small enough, and the requirements of relevant radio frequency air interface test standards are met.

And an object 4 to be tested for electromagnetic radiation test, such as a base station, is fixed in the wave-transparent box body.

The object to be measured can be fixed by using the binding band and the reserved hole.

The object to be measured can be fixedly connected to the bottom surface of the incubator, and can also be fixedly provided with an accommodating part in the incubator, and the object to be measured is fixedly connected to the accommodating part. Preferably, the test object is located at the center of rotation of the device of the present application after being immobilized.

Except the box door, the other parts of the wave-transmitting box body are integrally formed and are all made of light high-temperature-resistant foam cores, and the hinge, the fixing screw and the handle nail of the box door are also made of the light high-temperature-resistant foam cores.

The base station fixing plate is arranged in the middle of the wave-transparent box body and made of a light high-temperature-resistant foam core and used for fixing the base station. The base station and the fixing plate inside the wave-transparent incubator can be fixed by using a cloth bandage.

The rotating shaft is fixedly arranged on the outer wall of the wave-transparent box body, and the rotating shaft drives the wave-transparent box body to rotate by taking the axis of the rotating shaft as a center when rotating.

For example, the rotating shaft is combined with the wave-transparent box body through a U-shaped frame 6, and further, the top or the bottom of the wave-transparent box body is fixed on the U-shaped frame. The box body is fixedly connected with the beam of the U-shaped frame through the suspension arm 7, and the side edge of the U-shaped frame is fixedly connected with the rotating shaft.

And the control device is fixedly connected with the outer side of the wave-transparent box body. Used for controlling the temperature in the box body and exhausting air. The control device is internally provided with a high-temperature low-temperature control device and an air inlet and exhaust system, and an air inlet and an air outlet are both arranged on the control device. In order to prevent dust and the like from entering, the air inlet and the air outlet are provided with net-shaped protection plates. The net-shaped protection plate on the air outlet of the air inlet is made of light high-temperature-resistant foam core materials.

The control device further comprises a temperature controller, a probe of the temperature controller is installed at the top of the incubator, and a temperature display screen is installed on the control device below the temperature controller and used for better monitoring the temperature.

The control device can be arranged on any side surface of the wave-transparent box body, but the left side and the right side of the wave-transparent box body are tightly attached to the U-shaped frame, so that the space is small. Only one control device is arranged, and the rotation of the wave-transparent box body can be influenced by the control devices arranged at the front side and the rear side. Therefore, the control device is preferably installed inside or outside the bottom surface of the wave-transparent box body.

Further, the suspension arm and the control device can be arranged on the same side of the incubator or on different sides.

Further, when the control device is installed outside the wave-transparent box body, it may be disposed below the illustrated U-shaped frame 6.

In any of the embodiments of the present application, the temperature control device is disposed opposite to the radiation surface of the base station when the incubator is used for base station testing.

The embodiment of the application further provides a test system, which comprises the rotatable wave-transparent incubator and an object stage 5.

The stage comprises a base 51 and a spindle support 52. The rotating shaft support is provided with a driving device and is arranged above the base, and the rotating shaft support drives the rotating shaft to rotate by taking the axis of the rotating shaft as a center through the driving device.

The rotating shaft bracket may be a side arm standing on the base, or may be another type of bracket, which is not further limited herein.

For example, the rotating shaft bracket is a side arm standing on the base, a rotating shaft is mounted on the side arm, and the rotating shaft is driven by a driving motor to rotate along the axis direction of the rotating shaft.

The side arm can be one or two. Preferably, the two side arms are respectively erected on two sides of the upper surface of the base and are respectively fixedly connected to two sides of the U-shaped frame through two rotating shafts.

The base can be for the rigid, also can rotate along horizontal direction angular motion, because the base can provide more angles for the ripples box that passes through at horizontal direction angular motion, consequently preferably, the base can be along horizontal direction angular rotation, and the ripples box that passes through is horizontal angle center of rotation.

The control device needs to be shielded by a shell made of metal. Because the anechoic chamber of the radiation test simulates an outdoor electromagnetic environment without a space with infinite reflection, wave-absorbing materials are paved around the anechoic chamber, and the aim of transmitting the electric wave out without reflection is fulfilled to reduce the influence caused by the reflection of the electromagnetic wave. Because some devices of the device are made of metal, preferably, all exposed surfaces of the metal of the device are covered with wave-absorbing materials. The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A rotatable wave-transparent incubator is characterized by comprising a wave-transparent incubator body, a rotating shaft and a control device;

the rotating shaft is fixedly arranged on the outer wall of the wave-transparent box body, and the rotating shaft drives the wave-transparent box body to rotate by taking the axis of the rotating shaft as a center when rotating;

the control device is used for controlling the temperature in the wave-transparent box body and is fixedly arranged at the bottom of the wave-transparent box body.

2. A test system comprising the rotatable, wave-transparent incubator of claim 1, further comprising a stage;

the objective table comprises a base and a rotating shaft bracket;

the rotating shaft support is provided with a driving device and is fixedly arranged on the base, and the rotating shaft support drives the rotating shaft to rotate by taking the axis of the rotating shaft as a center through the driving device.

3. The test system of claim 2, wherein the base of the stage is angularly rotated in a horizontal direction, and the wave-transparent enclosure is located at a horizontal angular center of rotation.