Efficient heat dissipation device of ultrahigh frequency power supply

Abstract

The utility model relates to the technical field of ultrahigh-frequency power supplies, in particular to a high-efficiency heat dissipation device of an ultrahigh-frequency power supply, which comprises a power supply body, a top cover is detachably arranged at the top of the power supply body, a mounting bracket is fixedly connected to the inner wall of a shell of the power supply body, an air inlet hole is formed in one side of the shell of the power supply body, and the air inlet hole is communicated with the mounting bracket. An exhaust hole is formed in the other side of the shell of the power supply body; a filter screen for shielding the air inlet hole and the exhaust hole is arranged on the surface of the shell of the power supply body; by arranging the heat dissipation structure, the influence of dust and impurities entering the interior of the power supply body caused by forced ventilation on components can be reduced under the action of the heat dissipation structure, the interior of the power supply body can be divided into a working area and a heat dissipation area by arranging the connecting plate, and actively injected airflow only flows in the heat dissipation area; components in the power supply body are not affected, and a good working environment of the power supply body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of ultra-high frequency power supply technology, and in particular to a high-efficiency heat dissipation device for ultra-high frequency power supplies. Background Technology

[0002] Ultra-high frequency (UHF) power supplies refer to power devices operating in the frequency range of 30MHz to 300MHz, used in radio frequency applications such as communications, medical equipment, and industrial heating. These power supplies typically require high efficiency and high stability, but high-frequency operation leads to significant switching losses and heat dissipation, making heat dissipation crucial. Current heat dissipation methods primarily rely on forced ventilation, but this can allow external impurities to enter the power supply and affect the operation of components.

[0003] Therefore, a high-efficiency heat dissipation device for ultra-high frequency power supplies is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an efficient heat dissipation device for ultra-high frequency power supplies in order to solve the above-mentioned problems, thereby improving the situation where forced ventilation causes impurities from the outside to enter the power supply and affect the operation of components.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a high-efficiency heat dissipation device for an ultra-high frequency power supply, comprising:

[0006] The power supply body has a detachable top cover, a mounting bracket is fixedly connected to the inner wall of the outer shell of the power supply body, an air inlet is opened on one side of the outer shell of the power supply body, an exhaust vent is opened on the other side of the outer shell of the power supply body, a filter screen is provided on the surface of the outer shell of the power supply body to block the air inlet and exhaust vent, and a guide plate is fixedly connected to the bottom of the top cover.

[0007] A heat dissipation structure is disposed inside the outer casing of the power supply body, and the heat dissipation structure is used to dissipate heat from the power supply body.

[0008] The heat dissipation structure includes a connecting plate disposed on the top of the mounting bracket. A liquid storage box is fixedly connected to the side of the connecting plate near the air inlet. The liquid storage box is filled with a heat exchange medium. A partition plate is fixedly connected to the middle of the inner wall of the liquid storage box. A mounting plate is fixedly connected to the top of the liquid storage box. Fans are evenly distributed on the surface of the mounting plate.

[0009] Preferably, a reflux cavity is formed between the top of the partition plate and the inner wall of the liquid storage box, and an outlet cavity is formed between the bottom of the partition plate and the inner wall of the liquid storage box. A pump body is provided at the top of the partition plate, and the water outlet end of the pump body passes through the partition plate and is connected to the outlet cavity.

[0010] Preferably, the surface of the connecting plate is provided with uniformly distributed heat exchange tubes, the heat exchange tubes have a U-shaped cross-section, one end of the heat exchange tubes penetrates the connecting plate and is connected to the reflux cavity, and the other end of the heat exchange tubes penetrates the connecting plate and is connected to the outlet cavity.

[0011] Preferably, the surface of the heat exchange tube is provided with several sets of heat exchange fins located above the connecting plate. The heat exchange fins have a triangular cross-sectional shape and ventilation grooves are formed on the surface of the heat exchange fins.

[0012] Preferably, each group of heat exchange fins has no fewer than three fins, which are fixedly connected to the surface of the heat exchange tube in a fan shape, and the two groups of adjacent heat exchange fins are staggered.

[0013] Preferably, the bottom of the connecting plate is fixedly connected to a uniformly distributed heat exchange shell, the heat exchange shell has an arc-shaped cross-section, and several heat exchange shells are connected end to end in a wave-like arrangement. The side of the heat exchange tube away from the heat exchange fins is located inside the adjacent heat exchange shell, and the inside of the heat exchange shell is filled with thermally conductive silicone grease.

[0014] Preferably, a baffle is provided at the bottom of the connecting plate, and a sealing block that is evenly distributed and engages with the inner side of the heat exchange shell is fixedly connected to one side of the baffle.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting up a heat dissipation structure, the impact of dust and impurities entering the power supply body caused by forced ventilation can be reduced. By setting up a connecting plate, the inside of the power supply body can be divided into a working area and a heat dissipation area. The actively injected airflow will only flow in the heat dissipation area and will not affect the components inside the power supply body, thus ensuring a good working environment for the power supply body.

[0017] 2. By setting up a liquid storage box, partition plate, pump body and heat exchange medium, the heat exchange medium can be driven to flow from the working area to the heat dissipation area in the heat exchange tube. During this process, the heat exchange shell and thermal grease are used to enhance the absorption of heat inside the working area. At the same time, the setting of heat dissipation fins can effectively increase the heat exchange area and improve the heat dissipation and cooling effect inside the heat dissipation area. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the structural separation of this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the heat dissipation structure of this utility model;

[0021] Figure 4 for Figure 3 A magnified view of A in the middle.

[0022] In the diagram: 1. Power supply body; 101. Top cover; 102. Guide plate; 103. Exhaust vent; 104. Air inlet; 105. Filter screen; 106. Mounting bracket; 2. Heat dissipation structure; 201. Mounting plate; 202. Fan; 203. Liquid storage box; 204. Divider plate; 205. Pump body; 206. Heat exchange tube; 207. Heat exchange shell; 208. Baffle; 210. Sealing block; 209. Connecting plate; 211. Heat exchange fins. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In practical implementation: such as Figure 1-4 As shown, a high-efficiency heat dissipation device for an ultra-high frequency power supply includes:

[0025] The power supply body 1 has a detachable top cover 101 on its top. A mounting bracket 106 is fixedly connected to the inner wall of the outer shell of the power supply body 1. An air inlet 104 is opened on one side of the outer shell of the power supply body 1, and an exhaust 103 is opened on the other side of the outer shell of the power supply body 1. A filter screen 105 is provided on the surface of the outer shell of the power supply body 1 to block the air inlet 104 and the exhaust 103. A guide plate 102 is fixedly connected to the bottom of the top cover 101.

[0026] Heat dissipation structure 2 is disposed inside the outer casing of the power supply body 1 and is used to dissipate heat from the power supply body 1.

[0027] The heat dissipation structure 2 includes a connecting plate 209 disposed on the top of the mounting bracket 106. A liquid storage box 203 is fixedly connected to the side of the connecting plate 209 near the air inlet 104. The liquid storage box 203 is filled with heat exchange medium. A partition plate 204 is fixedly connected to the middle of the inner wall of the liquid storage box 203. A mounting plate 201 is fixedly connected to the top of the liquid storage box 203. Fans 202 are evenly distributed on the surface of the mounting plate 201.

[0028] The power supply body 1 is an ultra-high frequency power supply, which efficiently converts input electrical energy into high frequency AC output while maintaining high stability and low noise. It generates a lot of heat during use. The top cover 101 is designed to facilitate opening the outer shell of the power supply body 1 for internal maintenance and repair. The top cover 101 can be fixed and limited by snap-fit ​​and bolt connection, which will not be elaborated on here.

[0029] By activating the fan 202, outside air is actively filtered through the filter 105 and then introduced into the casing of the power supply unit 1 through the air inlet 104 for timely dissipation of heat generated during operation.

[0030] like Figure 2 , Figure 3 and Figure 4 As shown, a reflux cavity is formed between the top of the partition plate 204 and the inner wall of the liquid storage box 203, and an outlet cavity is formed between the bottom of the partition plate 204 and the inner wall of the liquid storage box 203. A pump body 205 is provided on the top of the partition plate 204, and the water outlet end of the pump body 205 passes through the partition plate 204 and is connected to the outlet cavity.

[0031] The surface of the connecting plate 209 is provided with uniformly distributed heat exchange tubes 206. The cross-sectional shape of the heat exchange tubes 206 is "U". One end of the heat exchange tube 206 passes through the connecting plate 209 and is connected to the reflux cavity, and the other end of the heat exchange tube 206 passes through the connecting plate 209 and is connected to the outlet cavity.

[0032] The surface of the heat exchange tube 206 is provided with several sets of heat exchange fins 211 located above the connecting plate 209. The heat exchange fins 211 have a triangular cross-sectional shape and ventilation grooves are provided on the surface of the heat exchange fins 211.

[0033] Each group of heat exchange fins 211 consists of no fewer than three fins and is fixedly connected to the surface of the heat exchange tube 206 in a fan shape. Two groups of adjacent heat exchange fins 211 are staggered.

[0034] By activating the pump 205, the heat exchange medium in the return cavity can be injected into the outlet cavity, thereby forming a circulation through one end of the heat exchange tube 206 and the other end into the return cavity. During this process, the heat generated during the operation of the power supply body 1 can be absorbed. During the injection into the return cavity, the airflow introduced by the fan 202, together with the heat exchange fins 211, dissipates the heat, reducing the temperature of the heat exchange medium so that it can be reused after being injected into the return cavity. The connection plate 209 can work with the mounting bracket 106 to divide the interior of the power supply body 1 into a working area and a heat dissipation area. The heat exchange medium flows from the working area to the heat dissipation area, thereby absorbing the heat in the working area and dissipating it in the heat dissipation area. There is little interference between the two, and the operation of the internal components will not be affected by the airflow. This avoids the dust and impurities caused by active exhaust from sticking to the surface of the components and affecting them.

[0035] The heat exchange fins 211 have a triangular cross-sectional shape, and the surface of the heat exchange fins 211 is provided with ventilation grooves, which can increase the contact area with the gas without affecting the airflow.

[0036] like Figure 2 , Figure 3 and Figure 4 As shown, the bottom of the connecting plate 209 is fixedly connected with uniformly distributed heat exchange shells 207. The cross-sectional shape of the heat exchange shells 207 is arc-shaped, and several heat exchange shells 207 are connected end to end in a wave-like arrangement. The side of the heat exchange tube 206 away from the heat exchange fins 211 is located inside the adjacent heat exchange shell 207. The inside of the heat exchange shell 207 is filled with thermally conductive silicone grease.

[0037] A baffle 208 is provided at the bottom of the connecting plate 209, and a sealing block 210 is fixedly connected to one side of the baffle 208, which is evenly distributed and engages with the inner side of the heat exchange shell 207.

[0038] The application of thermal grease reduces thermal resistance, and the heat exchange shell 207 increases the contact area with the working area, allowing for better heat absorption and transfer to the surface of the heat exchange tube 206. The heat is then carried to the heat dissipation area by the flow of the heat exchange medium, improving the heat exchange effect. The baffle 208 and the sealing block 210 can seal the end of the heat exchange shell 207 to prevent the thermal grease from flowing out. Furthermore, the sealing block 210 can be separated from the heat exchange shell 207 by removing the baffle 208, making it easier to replace the thermal grease.

[0039] In use, this invention actively draws outside air through the filter screen 105 and into the housing of the power supply unit 1 via the air inlet 104 by activating the fan 202. Activating the pump 205 injects the heat exchange medium from the return chamber into the outlet chamber, creating a circulation by injecting the heat exchange medium through one end of the heat exchange tube 206 and into the return chamber through the other end. This process absorbs the heat generated during the operation of the power supply unit 1. During injection into the return chamber, the airflow from the fan 202, combined with the heat exchange fins 211, dissipates heat, lowering the temperature of the heat exchange medium for reuse after injection. The use of thermal grease reduces thermal resistance, and the heat exchange shell 207 increases the contact area with the working area, allowing for better heat absorption and transfer to the surface of the heat exchange tube 206. The heat exchange medium then carries the heat to the heat dissipation area, improving the heat exchange effect.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency heat dissipation device for an ultra-high frequency power supply, characterized in that, include: The power supply body (1) has a top cover (101) that can be detachably provided on the top. The inner wall of the outer shell of the power supply body (1) is fixedly connected to a mounting bracket (106). An air inlet (104) is provided on one side of the outer shell of the power supply body (1), and an exhaust hole (103) is provided on the other side of the outer shell of the power supply body (1). A filter screen (105) is provided on the surface of the outer shell of the power supply body (1) to block the air inlet (104) and the exhaust hole (103). A guide plate (102) is fixedly connected to the bottom of the top cover (101). Heat dissipation structure (2), the heat dissipation structure (2) is disposed inside the outer shell of the power supply body (1), the heat dissipation structure (2) is used to dissipate heat from the power supply body (1); The heat dissipation structure (2) includes a connecting plate (209) disposed on the top of the mounting bracket (106). A liquid storage box (203) is fixedly connected to the side of the connecting plate (209) near the air inlet (104). The liquid storage box (203) is filled with heat exchange medium. A partition plate (204) is fixedly connected to the middle of the inner wall of the liquid storage box (203). An mounting plate (201) is fixedly connected to the top of the liquid storage box (203). Fans (202) are evenly distributed on the surface of the mounting plate (201).

2. The high-efficiency heat dissipation device for an ultra-high frequency power supply according to claim 1, characterized in that: A reflux cavity is formed between the top of the partition plate (204) and the inner wall of the liquid storage box (203), and an outlet cavity is formed between the bottom of the partition plate (204) and the inner wall of the liquid storage box (203). A pump body (205) is provided on the top of the partition plate (204), and the water outlet end of the pump body (205) passes through the partition plate (204) and is connected to the outlet cavity.

3. The high-efficiency heat dissipation device for an ultra-high frequency power supply according to claim 2, characterized in that: The surface of the connecting plate (209) is provided with uniformly distributed heat exchange tubes (206). The heat exchange tubes (206) have a "U" shaped cross-section. One end of the heat exchange tube (206) passes through the connecting plate (209) and is connected to the reflux cavity. The other end of the heat exchange tube (206) passes through the connecting plate (209) and is connected to the outlet cavity.

4. The high-efficiency heat dissipation device for an ultra-high frequency power supply according to claim 3, characterized in that: The surface of the heat exchange tube (206) is provided with several sets of heat exchange fins (211) located above the connecting plate (209). The heat exchange fins (211) have a triangular cross-sectional shape and ventilation grooves are provided on the surface of the heat exchange fins (211).

5. The high-efficiency heat dissipation device for an ultra-high frequency power supply according to claim 4, characterized in that: Each group of heat exchange fins (211) has no fewer than three and is fixedly connected to the surface of the heat exchange tube (206) in a fan shape, with two adjacent groups of heat exchange fins (211) being staggered.

6. The high-efficiency heat dissipation device for an ultra-high frequency power supply according to claim 5, characterized in that: The bottom of the connecting plate (209) is fixedly connected to a uniformly distributed heat exchange shell (207). The heat exchange shell (207) has a circular arc shape in cross-section, and several heat exchange shells (207) are connected end to end in a wave-like arrangement. The side of the heat exchange tube (206) away from the heat exchange fins (211) is located inside the adjacent heat exchange shell (207). The inside of the heat exchange shell (207) is filled with thermally conductive silicone grease.

7. The high-efficiency heat dissipation device for an ultra-high frequency power supply according to claim 6, characterized in that: The bottom of the connecting plate (209) is provided with a baffle (208), and a sealing block (210) is fixedly connected to one side of the baffle (208) and is evenly distributed and engages with the inner side of the heat exchange shell (207).

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