A heat pipe connected to a heat sink air-cooled medium-frequency reactor

Abstract

This utility model relates to the field of heat dissipation in power electronic equipment, and more particularly to a medium-frequency reactor with heat pipes connected to heat sinks and air cooling. It includes a medium-frequency reactor body, with a mounting base fastened to the top of the reactor body. Auxiliary heat dissipation components are provided on the mounting base corresponding to the winding positions of the reactor body. Each auxiliary heat dissipation component includes two heat pipes, with multiple heat sinks fixedly mounted at equal intervals around the two heat pipes. In this utility model, the concentrated heat from the windings is transferred to the externally distributed heat sinks through the evaporation and condensation phase change cycle of the working fluid inside the heat pipes, and then rapidly dissipated through forced convection by a fan. Simultaneously, a protective shell composed of an L-shaped column and a detachable dustproof top and side plates effectively prevents dust and debris from entering the reactor body and heat sink area.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for power electronic equipment, and in particular to a medium-frequency reactor with heat pipe connection to heat sink and air cooling. Background Technology

[0002] The structural design of intermediate frequency reactors is crucial to their performance and reliability. Its core function is to provide the required inductance within a specific intermediate frequency range, while simultaneously withstanding operating current and voltage, and effectively controlling losses, temperature rise, and electromagnetic interference.

[0003] The heat dissipation methods of some existing medium-frequency reactors are simple aluminum fins, natural convection or low-speed fans, which are not efficient enough. They are prone to failing to quickly transfer the heat inside the equipment (especially the heat concentration areas such as windings) to the external environment, resulting in excessively high local temperatures. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat pipe connected to a heat sink and air-cooled medium-frequency reactor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat pipe connected to a heat sink and air-cooled medium-frequency reactor includes a medium-frequency reactor body. A mounting base is installed on the top of the medium-frequency reactor body by fasteners. An auxiliary heat dissipation component is provided on the mounting base at the position corresponding to the winding of the medium-frequency reactor body. The auxiliary heat dissipation component includes two heat pipes. Multiple heat sinks are fixedly sleeved on the outside of the two heat pipes at equal intervals. One end of the heat pipe is embedded in the gap of the winding. A fan assembly is provided between two adjacent sets of auxiliary heat dissipation components, and the fan assembly blows air towards the heat sink.

[0007] Each of the four corners of the top of the mounting base is vertically fixed with an L-shaped column. A dustproof side plate is provided between each two adjacent L-shaped columns, and the top of the four dustproof side plates is connected to the dustproof top plate. A limit component is provided on one side of the L-shaped column, and the dustproof top plate is limited to the adjacent L-shaped column by the limit component.

[0008] In addition, a preferred structure is that the limiting component includes a fixed base and a limiting rod, with one side of the fixed base connected to an adjacent L-shaped column.

[0009] In addition, a preferred structure is that a support base is installed on the fixed base, and a movable limiting plate is movably embedded on one side of the outer wall of the support base.

[0010] In addition, a preferred structure is that multiple positioning rods are installed at equal distances on both sides of the bottom of the dustproof top plate and on the adjacent dustproof side plate, and a positioning groove is opened at the top of the L-shaped column at the adjacent positioning rod.

[0011] In addition, a preferred structure is that the movable limiting plate has an insertion hole at the limiting rod, the top of the L-shaped column has a slot at the adjacent limiting rod, and the dustproof top plate has an auxiliary hole at the slot.

[0012] Furthermore, a preferred structure is that the heat pipe is a hollow metal tube filled with a phase change working fluid.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, the heat from the winding is concentrated and transferred to the externally equidistant heat sinks through the evaporation and condensation phase change cycle of the working fluid inside the heat pipe, and then the heat is quickly dissipated by forced convection through the fan; at the same time, the protective shell composed of L-shaped columns and detachable dustproof top and side plates effectively prevents dust and debris from the environment from entering the reactor body and heat sink area. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a partially disassembled cross-section of a heat pipe connected to a heat sink and air-cooled medium-frequency reactor proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of a heat pipe connected to a heat sink and air-cooled medium-frequency reactor proposed in this utility model.

[0017] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0018] Figure 4 This is a partial structural diagram of a heat pipe connected to a heat sink and air-cooled medium-frequency reactor proposed in this utility model.

[0019] In the diagram: 1. Medium frequency reactor body; 2. Mounting base; 3. L-shaped column; 4. Dustproof top plate; 41. Dustproof side plate; 5. Limiting component; 51. Fixing base; 52. Support base; 53. Limiting rod; 54. Movable limiting plate; 6. Heat sink; 7. Heat pipe; 8. Fan assembly. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4A heat pipe connected to a heat sink and air-cooled medium-frequency reactor includes a medium-frequency reactor body 1. A mounting base 2 is installed on the top of the medium-frequency reactor body 1 by fasteners. The mounting base 2 is provided with auxiliary heat dissipation components at the positions of the windings of the medium-frequency reactor body 1. The auxiliary heat dissipation components include two heat pipes 7. Multiple heat sinks 6 are fixedly sleeved on the outside of the two heat pipes 7 at equal intervals. One end of the heat pipe 7 is embedded in the gap of the winding. A fan assembly 8 is provided between two adjacent sets of auxiliary heat dissipation components, and the fan assembly 8 blows air towards the heat sink 6.

[0022] It is worth noting that the specific structure, connection method and working principle of the intermediate frequency reactor body 1 and the winding are all existing technologies that are currently publicly available on the market, so they will not be elaborated further.

[0023] Meanwhile, L-shaped columns 3 are vertically fixed at the four corners of the top of the mounting base 2. Dustproof side plates 41 are provided between two adjacent L-shaped columns 3, and the top of the four dustproof side plates 41 is connected to the dustproof top plate 4. A limiting component 5 is provided on one side of the L-shaped column 3, and the dustproof top plate 4 is limited to the adjacent L-shaped column 3 by the limiting component 5.

[0024] Furthermore, the limiting component 5 includes a fixed base 51 and a limiting rod 53. One side of the fixed base 51 is connected to the adjacent L-shaped column 3. A support base 52 is installed on the fixed base 51, and a movable limiting plate 54 is movably embedded on one side of the outer wall of the support base 52.

[0025] Meanwhile, multiple positioning rods are installed at equal distances on both sides of the bottom of the dustproof top plate 4 and the adjacent dustproof side plate 41, and a positioning groove is opened at the top of the L-shaped column 3 at the adjacent positioning rod.

[0026] Meanwhile, the movable limiting plate 54 has an insertion hole at the limiting rod 53, the top of the L-shaped column 3 has a slot at the adjacent limiting rod 53, and the dustproof top plate 4 has an auxiliary hole at the slot.

[0027] Furthermore, the heat pipe 7 is a hollow metal tube filled with a phase change working fluid.

[0028] In this embodiment, the phase change working fluid inside the heat pipe 7, typically pure water or other low-boiling-point fluid, absorbs heat at the hot end near the winding and evaporates. The vapor rapidly flows to the cooler, farther heat sink area, where it condenses and releases heat. The condensate then flows back to the hot end through capillary action or gravity. This phase change cycle has excellent equivalent thermal conductivity, enabling extremely rapid transfer of concentrated heat generated inside the winding to the external heat sink 6. Furthermore, the heat sink is fixed at equal intervals around the heat pipe 7, significantly increasing the heat dissipation surface area. The fan assembly 8 blows air directly onto the heat sink, creating forced convection, which greatly improves the heat exchange efficiency between the air and the heat sink 6, rapidly carrying away the heat transferred from the heat pipe 7 to the heat sink.

[0029] Meanwhile, the L-shaped column, dustproof side panel and dustproof top panel together form a protective shell, which effectively prevents dust and debris in the environment from entering the reactor body and heat sink area.

[0030] When it is necessary to clean the dustproof top plate 4 and the dustproof side plate 41, pull out the limiting rods 53 at the four corners and rotate the movable limiting plate 54 until it is away from the dustproof top plate 4, and then the dustproof top plate 4 and the dustproof side plate 41 can be cleaned.

[0031] After cleaning the dustproof top plate 4 and dustproof side plate 41, align the dustproof side plate 41 between the two adjacent L-shaped columns 3, and align the positioning rod with the adjacent positioning groove and insert it. After insertion, the auxiliary hole of the dustproof top plate 4 is aligned with the slot of the adjacent L-shaped column 3. Rotate the movable limiting plate 54 until its insertion hole is aligned with the auxiliary hole of the dustproof top plate 4, and align the limiting rod 53 with the insertion hole of the adjacent movable limiting plate 54 and insert it, thereby limiting the movable limiting plate 54 and the adjacent L-shaped column 3. It is worth noting that when the movable limiting plate 54 is rotated to be above the dustproof top plate 4, the bottom of the movable limiting plate 54 is in contact with the top of the dustproof top plate 4.

[0032] In this invention, the heat from the winding is concentrated and transferred to the externally equidistant heat sinks through the evaporation and condensation phase change cycle of the working fluid inside the heat pipe, and then the heat is quickly dissipated by forced convection through the fan; at the same time, the protective shell composed of L-shaped columns and detachable dustproof top and side plates effectively prevents dust and debris from the environment from entering the reactor body and heat sink area.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A medium-frequency reactor with heat pipe connection and heat sink air cooling, comprising a medium-frequency reactor body (1), characterized in that, The top of the medium frequency reactor body (1) is fitted with a mounting base (2) by fasteners. The mounting base (2) is provided with auxiliary heat dissipation components at the positions of the windings of the medium frequency reactor body (1). The auxiliary heat dissipation components include two heat pipes (7). Multiple heat sinks (6) are fixedly fitted on the outside of the two heat pipes (7) at equal distances. One end of the heat pipe (7) is embedded in the gap of the winding. A fan assembly (8) is provided between two adjacent sets of auxiliary heat dissipation components. The fan assembly (8) blows air towards the heat sink (6). The four corners of the top of the mounting base (2) are vertically fixed with L-shaped columns (3), and dustproof side plates (41) are provided between two adjacent L-shaped columns (3). The top of the four dustproof side plates (41) is connected to the dustproof top plate (4). A limiting component (5) is provided on one side of the L-shaped column (3), and the dustproof top plate (4) is limited to the adjacent L-shaped column (3) by the limiting component (5).

2. The medium-frequency reactor with heat pipe connection and heat sink air cooling according to claim 1, characterized in that, The limiting component (5) includes a fixed base (51) and a limiting rod (53). One side of the fixed base (51) is connected to the adjacent L-shaped column (3).

3. A medium-frequency reactor with heat pipe connection and heat sink air cooling according to claim 2, characterized in that, A support base (52) is installed on the fixed base (51), and a movable limiting plate (54) is movably embedded on one side of the outer wall of the support base (52).

4. A medium-frequency reactor with heat pipe connection and heat sink air cooling as described in claim 1, characterized in that, Multiple positioning rods are installed at equal distances on both sides of the bottom of the dustproof top plate (4) and the adjacent dustproof side plate (41), and a positioning groove is opened at the top of the L-shaped column (3) at the adjacent positioning rod.

5. A medium-frequency reactor with heat pipe connection and heat sink air cooling according to claim 3, characterized in that, The movable limiting plate (54) has an insertion hole at the limiting rod (53), the top of the L-shaped column (3) has a slot at the adjacent limiting rod (53), and the dustproof top plate (4) has an auxiliary hole at the slot.

6. A medium-frequency reactor with heat pipe connection and heat sink air cooling according to claim 1, characterized in that, The heat pipe (7) is a hollow metal tube filled with a phase change working fluid.

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