An electromagnetic shielding device for a microwave transmitter

CN122094071APending Publication Date: 2026-05-26DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Filing Date
2026-03-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing microwave transmitters generate a large amount of electromagnetic radiation in directions other than the transmitting direction during use, which can lead to safety hazards, especially when the electromagnetic field strength is high, which may cause sparks and electric arcs.

Method used

A microwave absorption component is constructed using regularly arranged conductive liquid pipelines, and the microwaves are converted into heat through a heat dissipation and cooling system. The heat is then dissipated using a water pump and a cooling fan to achieve electromagnetic shielding.

Benefits of technology

It effectively absorbs and dissipates microwaves from the sides and rear of the microwave transmitter, reducing electromagnetic radiation, preventing heat accumulation, and improving safety.

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Abstract

This invention provides an electromagnetic shielding device for a microwave transmitter, belonging to the field of microwave shielding technology. The device comprises: a microwave absorbing component that absorbs microwaves from the microwave transmitter and converts them into heat through a conductive liquid; the microwave absorbing component is connected to a heat dissipation and cooling system for heat dissipation; the microwave absorbing component includes: several conductive liquid pipes arranged regularly and tightly attached to the microwave transmitting antenna; a fixing frame for supporting the conductive liquid pipes; a water pump; and a flow pipe; the heat dissipation and cooling system includes: a liquid storage cavity and a cooling fan; the flow pipe connects the liquid storage cavity and the conductive liquid pipes, and the water pump circulates the conductive liquid between the conductive liquid pipes and the liquid storage cavity; the cooling fan is arranged on the liquid storage cavity to dissipate heat from the conductive liquid within the cavity. By absorbing microwaves from the microwave transmitter and converting them into heat through the conductive liquid, and then having the heat carried away by the cooling fan, the electromagnetic shielding effect of the microwave transmitter is achieved.
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Description

Technical Field

[0001] This invention relates to the field of microwave shielding technology, and in particular to an electromagnetic shielding device for a microwave transmitter. Background Technology

[0002] Microwaves are high-frequency electromagnetic waves with wavelengths ranging from 1 mm to 1 m and frequencies from 0.3 GHz to 300 GHz. A microwave transmitter typically consists of a microwave generator, a directional transmitting antenna, and a servo control system. The microwave generator transmits microwave electromagnetic pulses, the directional transmitting antenna focuses almost all of the microwave energy in a specific direction, and the servo control system points the antenna in the desired direction.

[0003] In existing technologies, microwave transmitters generate significant electromagnetic radiation in directions other than the transmission direction, namely the surrounding area and rear. A common solution is to use an external metal casing for electromagnetic shielding. However, when the electromagnetic field strength is high, the metal releases a large amount of heat and generates induced current under microwave influence. In severe cases, this can ionize the surrounding air, causing sparks and arcs, posing a safety hazard.

[0004] Therefore, an electromagnetic shielding device for microwave transmitters is needed. Summary of the Invention

[0005] In view of this, the present invention provides an electromagnetic shielding device for a microwave transmitter, which uses a microwave absorption component constructed by regularly arranged conductive liquid pipelines to absorb microwaves and then dissipates heat through circulation with a heat dissipation and cooling system to achieve electromagnetic shielding.

[0006] Therefore, the present invention provides the following technical solution:

[0007] An electromagnetic shielding device for a microwave transmitter, comprising: Microwave absorption components and heat dissipation and cooling system; The microwave absorption component absorbs microwaves from the microwave transmitter and converts them into heat through a conductive liquid; the microwave absorption component is connected to the heat dissipation and cooling system for heat dissipation. The microwave absorption assembly includes: a plurality of conductive liquid pipes arranged regularly and closely attached to the microwave transmitting antenna, a fixing frame for supporting the conductive liquid pipes, a water pump, and a flow pipe. The heat dissipation and cooling system includes: a liquid storage cavity and a cooling fan; The flow pipe connects the liquid storage cavity and the conductive liquid pipeline, and the water pump enables the conductive liquid to circulate between the conductive liquid pipeline and the liquid storage cavity; the cooling fan is arranged on the liquid storage cavity to dissipate heat from the conductive liquid in the liquid storage cavity.

[0008] Furthermore, several temperature sensors are installed inside the conductive liquid pipeline.

[0009] Furthermore, several flow rate sensors are installed inside the conductive liquid pipeline.

[0010] Furthermore, several hydraulic sensors are installed inside the conductive liquid pipeline.

[0011] Furthermore, a dustproof mesh is provided on the outside of the cooling fan.

[0012] Compared with the prior art, the present invention has the following advantages: This invention uses a conductive liquid to absorb microwaves from the surrounding area and rear of the microwave transmitter, converting the microwaves into heat energy. Then, a water pump drives the conductive liquid to flow in pipes and a liquid storage cavity, and a cooling fan carries away the heat from the conductive liquid after absorbing the microwaves, thus achieving the electromagnetic shielding effect of the microwave transmitter. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the electromagnetic shielding device for a microwave transmitter.

[0015] In the diagram: 1. Conductive liquid pipeline; 2. Microwave transmitting antenna; 3. Water pump; 4. Flow pipe; 5. Fixture; 6. Liquid storage cavity; 7. Cooling fan; 8. Dustproof net. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0018] like Figure 1 As shown, an electromagnetic shielding device for a microwave transmitter includes: The system includes conductive liquid pipelines 1 and a cooling system. Conductive liquid pipelines 1 are tightly fitted to the microwave transmitting antenna 2, absorbing microwaves from the surrounding and rear sides of the transmitter. All conductive liquid pipelines are interconnected and connected to several water pumps 3 to ensure the flow of conductive liquid within the pipelines. Flow pipes 4 are fixedly connected to both ends of conductive liquid pipelines 1. Fixing frames 5 are fixedly connected around conductive liquid pipelines 1, securing the pipelines and the housing. The cooling system includes a liquid storage cavity 6 and a cooling fan 7. The flow pipes 4 are fixedly connected to the liquid storage cavity 6, which stores the absorbed conductive liquid. The cooling fan 7 dissipates heat from the conductive liquid. A dust filter 8 is installed on the exterior of the cooling fan 7 to reduce maintenance costs.

[0019] Example In this embodiment, the conductive liquid pipeline of the electromagnetic shielding device of the microwave transmitter is equipped with several temperature sensors, flow rate sensors and hydraulic sensors.

[0020] Data is collected and analyzed by temperature, flow rate and hydraulic pressure sensors. Based on the analysis results, the speed of water pump 3 and cooling fan 7 is controlled to improve heat dissipation efficiency and save energy.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electromagnetic shielding device for a microwave transmitter, characterized in that, include: Microwave absorption components and heat dissipation and cooling system; The microwave absorption component absorbs microwaves from the microwave transmitter and converts them into heat through a conductive liquid. The microwave absorption component is connected to the heat dissipation and cooling system, and heat dissipation is achieved through the heat dissipation and cooling system. The microwave absorption assembly includes: a plurality of conductive liquid pipes (1) arranged regularly and closely attached to the microwave transmitting antenna (2), a fixing frame (5) for supporting the conductive liquid pipes (1), a water pump (3), and a flow pipe (4). The heat dissipation and cooling system includes: a liquid storage cavity (6) and a cooling fan (7). The flow pipe (4) connects the liquid storage cavity (6) and the conductive liquid pipeline (1), and the water pump (3) realizes the circulation of the conductive liquid between the conductive liquid pipeline (1) and the liquid storage cavity (6); the cooling fan (7) is arranged on the liquid storage cavity (6) to dissipate heat from the conductive liquid in the liquid storage cavity (6).

2. The electromagnetic shielding device for a microwave transmitter according to claim 1, characterized in that: Several temperature sensors are installed inside the conductive liquid pipeline (1).

3. The electromagnetic shielding device for a microwave transmitter according to claim 1, characterized in that: Several flow rate sensors are installed inside the conductive liquid pipeline (1).

4. The electromagnetic shielding device for a microwave transmitter according to claim 1, characterized in that: Several hydraulic sensors are installed inside the conductive liquid pipeline (1).

5. The electromagnetic shielding device for a microwave transmitter according to claim 1, characterized in that: A dustproof mesh (8) is provided on the outside of the cooling fan (7).