A microwave circulator with heat dissipation function
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAODING JULONG MICROWAVE ENERGY EQUIP
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-30
Smart Images

Figure CN224437904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of microwave circulator technology, and in particular to a microwave circulator with heat dissipation function. Background Technology
[0002] With the concept of low-carbon and environmental protection becoming a core guiding principle for industrial development, atmospheric pressure microwave plasma technology, with its advantages of high electron density, suitable temperature, low equipment cost, and simple operation, has emerged as a key means of achieving waste gas purification in the field of industrial waste gas treatment. In this technology system, the microwave circulator, as a crucial component of the microwave transmission system, bears the important responsibility of ensuring efficient microwave energy transmission and avoiding signal reflection interference. Its performance directly affects the operational stability and efficiency of the entire microwave plasma treatment system. However, traditional microwave circulators are prone to generating heat during actual operation due to prolonged microwave processing. The lack of efficient heat dissipation design prevents timely heat dissipation, which can even lead to equipment failure and shorten equipment lifespan in severe cases. Utility Model Content
[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a microwave circulator with heat dissipation function, which solves the problem of heat not being able to be dissipated in time.
[0004] This utility model also provides a microwave circulator with the above-mentioned heat dissipation function, comprising: a circulator body, a heat-conducting load fixedly connected to the outer surface of the circulator body via a flange, the heat-conducting load including a waveguide, a heat sink one fixedly connected to the outer surface of the waveguide via a flange, a heat sink two fixedly connected to the outer surface of the waveguide via a flange, a circular adsorption block fixedly connected inside the waveguide, a copper tube installed on the inner wall of the circular adsorption block, the two ends of the copper tube contacting the heat sink one and the heat sink two, a grease injection rod fixedly connected to the outer surface of the heat sink two, the interior of the grease injection rod communicating with the interior of the copper tube.
[0005] According to the present invention, a microwave circulator with heat dissipation function is provided, wherein a plug is installed at one end of the copper tube, and an O-ring is installed on the outer surface of the plug. The plug, in conjunction with the O-ring, can effectively prevent the leakage of heat-conducting grease inside the copper tube.
[0006] According to the present invention, a microwave circulator with heat dissipation function is provided, wherein the outer surface of the first O-ring seal abuts against the inner wall of the copper tube, and the other end of the copper tube is equipped with the second O-ring seal. The two ends of the copper tube are respectively equipped with the first O-ring seal and the second O-ring seal, forming a double sealing structure, which greatly improves the reliability of the seal.
[0007] According to the present invention, a microwave circulator with heat dissipation function is provided, wherein the second O-ring seal and the first O-ring seal are located at the two ends of the copper tube, and the first heat sink and the second heat sink are located on both sides of the waveguide. The first heat sink and the second heat sink on both sides form a double-sided heat dissipation, and the double heat sink design increases the heat dissipation area.
[0008] The microwave circulator with heat dissipation function in this technical solution uses copper tubes with excellent thermal conductivity, which can quickly conduct heat from the high-temperature area to radiator one and radiator two. Through radiator one and radiator two on both sides, double-sided heat dissipation is formed, which conducts the heat inside the waveguide to the outside. At the same time, the double radiator design increases the heat dissipation area, further accelerating heat dissipation. In addition, thermal grease can be injected into the copper tube to reduce the air inside the copper tube and enhance the stability of heat conduction efficiency. Attached Figure Description
[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0010] Figure 1 This is a structural diagram of the microwave circulator with heat dissipation function in this practical application.
[0011] Figure 2 This is a schematic diagram of the waveguide connection of the microwave circulator with heat dissipation function in this utility model;
[0012] Figure 3 This is a schematic diagram of the grease injection rod connection for the microwave circulator with heat dissipation function in this utility model.
[0013] Figure 4 This is a schematic diagram of the O-ring connection of the microwave circulator with heat dissipation function in this utility model;
[0014] Figure 5 This is a schematic diagram of the plug connection for the microwave circulator with heat dissipation function in this utility model.
[0015] Figure 6 This is a schematic diagram of the copper tube connection of the microwave circulator with heat dissipation function in this utility model.
[0016] Legend:
[0017] 1. Circulator body; 2. Thermal load; 201. Waveguide; 202. Radiator 1; 203. Radiator 2; 204. Grease injector rod; 205. O-ring 1; 206. Copper pipe; 207. O-ring 2; 208. Circular adsorption block; 209. Plug. Detailed Implementation
[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0019] Reference Figure 1-6 This utility model discloses a microwave circulator with heat dissipation function, comprising: a circulator body 1, which guides the microwave transmission direction and ensures unidirectional microwave transmission from the microwave power source to the microwave reactor. It is mainly composed of a permanent magnet and a metal cavity. Utilizing the unidirectional transmission characteristic of the circulator, the microwaves can only flow in a specific direction (e.g., from the power source to the reactor). Microwaves reflected from the reactor are guided by the circulator towards a heat-conducting load 2, preventing them from returning to the power source, thus preventing damage to magnetrons and other equipment from reflected waves. This is an existing structure. The outer surface of the circulator body 1 is fixedly connected to the heat-conducting load 2 via a flange, absorbing the microwave energy reflected from the reactor and preventing reflected microwaves from returning to the microwave power source, protecting magnetrons and other equipment. It consists of a shell and an absorption medium. Utilizing the absorption characteristics of the absorption medium, when reflected microwaves enter the heat-conducting load 2, the microwave energy is absorbed and converted into heat energy, thereby dissipating the reflected microwaves. This is an existing structure. The heat-conducting load 2 includes a waveguide. Radiator 202 is fixedly connected to the outer surface of the waveguide 201 via a flange. Radiator 203 is also fixedly connected to the outer surface of the waveguide 201 via a flange. A circular suction block 208 is fixedly connected inside the waveguide 201. A copper tube 206 is installed on the inner wall of the circular suction block 208. Both ends of the copper tube 206 are in contact with radiator 202 and radiator 203. A grease injection rod 204 is fixedly connected to the outer surface of radiator 203. The part is connected to the interior of the copper tube 206. A plug 209 is installed at one end of the copper tube 206. An O-ring 205 is installed on the outer surface of the plug 209. The outer surface of the O-ring 205 abuts against the inner wall of the copper tube 206. An O-ring 207 is installed at the other end of the copper tube 206. The O-ring 207 and the O-ring 205 are located at the two ends of the copper tube 206, respectively. The radiator 202 and the radiator 203 are located on both sides of the waveguide 201, respectively.
[0020] Specifically, when the temperature of the heat-conducting load 2 rises, the excellent thermal conductivity of the copper tube 206 allows heat to be quickly transferred from the high-temperature area to the first radiator 202 and the second radiator 203. Through the first radiator 202 and the second radiator 203 on both sides, double-sided heat dissipation is formed, transferring the heat inside the waveguide 201 to the outside. At the same time, the double radiator design increases the heat dissipation area, further accelerating heat dissipation. Furthermore, thermal grease can be injected into the copper tube 206 through the grease injection rod 204 to reduce the air inside the copper tube 206 and enhance the stability of heat conduction efficiency.
[0021] Working principle: When the temperature of the heat-conducting load 2 rises, the excellent thermal conductivity of the copper tube 206 can quickly conduct heat from the high-temperature area to the heat sink 202 and the heat sink 203, forming double-sided heat dissipation. The heat in the waveguide 201 is conducted to the outside. Furthermore, thermal grease can be injected into the copper tube 206 through the grease injection rod 204 to reduce the air inside the copper tube 206 and enhance the stability of heat conduction efficiency.
[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A microwave circulator with heat dissipation function, characterized in that, include: The circulator body (1) has a heat-conducting load (2) fixedly connected to its outer surface via a flange. The heat-conducting load (2) includes a waveguide (201). A radiator (202) is fixedly connected to the outer surface of the waveguide (201) via a flange. A radiator (203) is fixedly connected to the outer surface of the waveguide (201) via a flange. A circular adsorption block (208) is fixedly connected inside the waveguide (201). A copper tube (206) is installed on the inner wall of the circular adsorption block (208). Both ends of the copper tube (206) are in contact with the radiator (202) and the radiator (203). A grease injection rod (204) is fixedly connected to the outer surface of the radiator (203). The interior of the grease injection rod (204) is connected to the interior of the copper tube (206).
2. A microwave circulator with heat dissipation function according to claim 1, characterized in that, One end of the copper tube (206) is fitted with a plug (209), and an O-ring (205) is fitted on the outer surface of the plug (209).
3. A microwave circulator with heat dissipation function according to claim 2, characterized in that, The outer surface of the first O-ring (205) abuts against the inner wall of the copper tube (206), and the other end of the copper tube (206) is equipped with the second O-ring (207).
4. A microwave circulator with heat dissipation function according to claim 3, characterized in that, The O-ring two (207) and O-ring one (205) are located at both ends of the copper tube (206), and the radiator one (202) and radiator two (203) are located on both sides of the waveguide (201).