A water-cooled high-frequency transformer rectifier
By employing a multi-dimensional heat dissipation design in a water-cooled high-frequency transformer rectifier, the problem of insufficient heat dissipation in high-power, high-heat scenarios using traditional heat dissipation methods is solved, achieving efficient heat dissipation and stable operation, and extending equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN PURNS ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-20
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional heat dissipation methods are insufficient to meet the heat dissipation requirements of high-frequency transformer rectifiers in high-power, high-heat-generating scenarios, affecting their working efficiency and service life.
It adopts a water-cooled high-frequency transformer rectifier, combined with a water-cooling heat dissipation mechanism, an auxiliary heat dissipation mechanism and an installation mechanism. Through a multi-dimensional heat dissipation design of water-cooled circulation heat dissipation, heat-conducting heat sinks and auxiliary heat dissipation holes, it achieves efficient heat dissipation.
It effectively addresses the high heat generation of the rectifier, ensuring its operational stability and service life, while also featuring a compact and reasonable structure that facilitates integration into electronic devices.
Smart Images

Figure CN224583531U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-frequency transformer rectifier technology, specifically a water-cooled high-frequency transformer rectifier. Background Technology
[0002] High-frequency transformer rectifiers are widely used in electronic devices to convert and rectify electrical energy. During operation, the rectifier generates a significant amount of heat. If this heat cannot be dissipated in a timely manner, it will affect the rectifier's efficiency and lifespan, and may even lead to equipment failure. Traditional heat dissipation methods, such as natural cooling and simple air cooling, are often insufficient for high-power, high-heat-generating scenarios. Therefore, a more efficient heat dissipation structure is needed to ensure the stable operation of high-frequency transformer rectifiers. Utility Model Content
[0003] (a) Technical problems to be solved.
[0004] To address the shortcomings of existing technologies, this invention provides a water-cooled high-frequency transformer rectifier, which solves the problems mentioned in the background section.
[0005] (ii) Technical solution.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-cooled high-frequency transformer rectifier, comprising a mounting mechanism, a rectifier mechanism, a water-cooling heat dissipation mechanism, and an auxiliary heat dissipation mechanism. These mechanisms cooperate to achieve functions such as power conversion and efficient heat dissipation. The specific structure is as follows:
[0007] The mounting mechanism, serving as the fundamental support structure for the entire rectifier, includes a mounting frame. The mounting frame has a first and a second assembly slot for precisely installing relevant components of the rectifier mechanism. Through slots are used for the conduction and adaptation of the rectifier mechanism's circuitry, ensuring smooth circuit connections. Mounting holes are located at the four corners of the mounting frame, facilitating the use of bolts and other mounting components to secure the entire rectifier to external equipment or brackets, ensuring stable installation. Auxiliary heat dissipation holes are evenly distributed on the front and rear sides of the mounting frame to enhance heat dissipation and work in conjunction with other heat dissipation structures.
[0008] Preferably, the rectifier mechanism undertakes the function of power rectification and conversion, including a rectifier assembly. One end of the rectifier assembly is provided with an output interface and the other end is provided with an input pin. It is adapted to connect with an external circuit through the output interface and the input pin to realize the input, rectification and conversion and output of power. The rectifier assembly is adapted to be installed in the first and second assembly slots of the mounting mechanism to ensure accurate installation position and compact structure.
[0009] Preferably, the core heat dissipation structure of the water-cooled heat dissipation mechanism includes a water-cooled heat-conducting sleeve. The water-cooled heat-conducting sleeve is made of copper and has built-in water channels. Copper has good thermal conductivity and can quickly absorb the heat generated by the rectifier components. The water-cooled heat-conducting sleeve is provided with inlet and outlet water connectors for connecting an external circulating water-cooling heat dissipation component, such as a chiller (not shown in the figure), which can continuously fill the water-cooled heat-conducting sleeve with cold water. The heat is carried away by the circulation of cold water, achieving efficient heat dissipation. The first heat dissipation fin consists of multiple fins that are evenly distributed on the top outer surface of the water-cooled heat-conducting sleeve to increase the contact area with air, assist in water-cooled heat dissipation, and improve heat dissipation efficiency. The water-cooled heat-conducting sleeve is set to fit the heat-generating parts on the top of the rectifier components, targeting the high-heat-generating areas for heat dissipation. The inlet and outlet water connectors are symmetrically arranged on one side of the water-cooled heat-conducting sleeve to ensure smooth circulation of cold water and improve heat dissipation stability.
[0010] Preferably, the auxiliary heat dissipation mechanism enhances heat dissipation, including an external auxiliary heat-conducting copper sleeve. The external auxiliary heat-conducting copper sleeve is fitted to the top of the mounting frame and the outer wall of the water-cooling heat-conducting sleeve to further absorb and conduct heat away. The second heat sink consists of multiple fins evenly distributed on the top outer surface of the external auxiliary heat-conducting copper sleeve to increase the heat dissipation area. The connector is fitted with an assembly groove to accommodate the installation of inlet and outlet water connectors, ensuring the overall structural compactness. The flow guide hole is opened on the second heat sink to assist gas flow and accelerate the dissipation of heat into the air. In conjunction with the auxiliary heat dissipation holes of the water-cooling heat dissipation mechanism and the mounting mechanism, the overall heat dissipation effect is enhanced.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. In this utility model, water cooling circulation heat dissipation is achieved through water cooling heat dissipation mechanism, combined with heat conduction and heat dissipation of auxiliary heat dissipation mechanism, and air circulation is accelerated by auxiliary heat dissipation holes of installation mechanism. This multi-dimensional efficient heat dissipation can effectively cope with the high heat generation of rectifier and ensure its working stability and service life.
[0013] 2. In this utility model, the rectifier can be stably installed on external equipment or brackets by using the mounting holes of the mounting mechanism and the mounting components, ensuring structural stability during use and reducing the impact of vibration. In addition, the structure is compact and reasonable, and each component is precisely installed through assembly slots, adapter structures, etc., such as the assembly of the rectifier mechanism and the mounting mechanism, the fitting of the auxiliary heat dissipation mechanism and the water cooling heat dissipation mechanism, and the mounting mechanism, ensuring that the overall structure is compact, the space is used reasonably, and it is easy to integrate into electronic equipment. Attached Figure Description
[0014] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ;
[0015] Figure 2 The overall three-dimensional structure of this utility model Figure 2 ;
[0016] Figure 3 This is a perspective view of the installation mechanism and the rectifier mechanism of this utility model;
[0017] Figure 4 This is a perspective view of the water-cooled heat dissipation mechanism and the auxiliary heat dissipation mechanism of this utility model.
[0018] In the diagram: 1. Mounting mechanism; 2. Rectifier mechanism; 3. Water-cooled heat dissipation mechanism; 4. Auxiliary heat dissipation mechanism; 11. Mounting frame; 12. First assembly slot; 13. Second assembly slot; 14. Through slot; 15. Mounting hole; 16. Auxiliary heat dissipation hole; 21. Rectifier assembly; 22. Output interface; 23. Input pin; 31. Water-cooled heat-conducting sleeve; 32. Inlet / outlet water connector; 33. First heat sink; 41. External auxiliary heat-conducting copper sleeve; 42. Connector mating assembly slot; 43. Second heat sink; 44. Guide hole. Detailed Implementation
[0019] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0020] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Please see Figures 1-4 In this embodiment of the utility model, a water-cooled high-frequency transformer rectifier includes an installation mechanism 1, a rectifier mechanism 2, a water-cooled heat dissipation mechanism 3, and an auxiliary heat dissipation mechanism 4.
[0023] The mounting mechanism 1 includes a mounting frame 11, which has a first mounting slot 12, a second mounting slot 13, a through slot 14, a mounting hole 15, and an auxiliary heat dissipation hole 16. The rectifier mechanism 2 includes a rectifier assembly 21, which has an output interface 22 at one end and an input pin 23 at the other end. The rectifier assembly 21 is adapted to be installed at the corresponding position on the mounting mechanism 1. The water-cooling heat dissipation mechanism 3 includes water... The water-cooled heat-conducting sleeve 31 is a copper sleeve with built-in water channels. The water-cooled heat-conducting sleeve 31 is provided with inlet and outlet water connectors 32. The water-cooled heat-conducting sleeve 31 is also provided with a first heat sink 33. The auxiliary heat dissipation mechanism 4 includes an external auxiliary heat-conducting copper sleeve 41. The external auxiliary heat-conducting copper sleeve 41 is provided with a connector fitting assembly groove 42. The surface of the external auxiliary heat-conducting copper sleeve 41 is provided with a second heat sink 43. The external auxiliary heat-conducting copper sleeve 41 is provided with a flow guide hole 44.
[0024] In this embodiment, the mounting holes 15 are located at the four corners of the mounting frame 11, and the mounting holes 15 are countersunk holes. The mounting frame 11 can be securely installed on external equipment or brackets using hex socket head cap screws. The head of the hex socket head cap screw is recessed into the mounting hole 15 to ensure the flatness of the mounting surface. The first assembly groove 12 and the second assembly groove 13 are distributed in a stepped manner on the top of the mounting frame 11. The bottom of the rectifier assembly 21 is provided with a positioning protrusion that matches the assembly groove. During assembly, the positioning protrusion is embedded into the corresponding assembly groove to achieve precise positioning and installation of the rectifier assembly 21. The positioning accuracy can reach ±0.1mm.
[0025] The inner wall of the water-cooled heat-conducting sleeve 31 is tightly fitted to the top heating surface of the rectifier assembly 21. The surface roughness of the fitting surface Ra≤0.8μm, and thermally conductive silicone grease with a thermal conductivity ≥3.0W / (m・K) is applied between the fitting surfaces to improve heat transfer efficiency. The inlet and outlet water connectors 32 are quick-plug connectors with a one-way check valve inside to prevent coolant leakage when connecting or disconnecting the external circulating water cooling heat dissipation assembly. The first heat sink 33 and the water-cooled heat-conducting sleeve 31 are integrally formed and adopt a microchannel heat dissipation design. The heat sink thickness is 0.5mm and the spacing between the fins is 1.5mm, which effectively increases the heat dissipation area while ensuring smooth coolant flow.
[0026] The external auxiliary heat-conducting copper sleeve 41 is fixedly connected to the mounting frame 11 and the water-cooled heat-conducting sleeve 31 through a snap-fit structure. The snap-fit is made of elastic metal material, which has good fatigue resistance and can withstand more than 5,000 repeated disassembly and installation cycles. The second heat sink 43 is distributed in an array on the top of the external auxiliary heat-conducting copper sleeve 41, forming a heat dissipation channel with a width of 2 mm between adjacent heat sinks. The guide holes 44 are evenly distributed on the side wall of the heat dissipation channel. The guide holes have a diameter of 3 mm and can guide airflow through the heat dissipation channel to enhance the convection heat dissipation effect. The auxiliary heat dissipation holes 16 are arranged in a matrix on the front and rear sides of the mounting frame 11. The hole diameter is 5 mm and the hole spacing is 10 mm, which can effectively promote the exchange of internal and external air.
[0027] The working principle of this utility model is as follows: In use, firstly, the rectifier assembly 21 is precisely positioned and fixed to the first mounting slot 12 and the second mounting slot 13 on the mounting frame 11 via the positioning protrusion. The output interface 22 and input pin 23 are connected to the external circuit via the through slot 14. Then, the water-cooled heat-conducting sleeve 31 is attached to the top heating surface of the rectifier assembly 21 and connected to the external circulating water-cooling heat dissipation assembly via the quick-plug inlet / outlet water connector 32, ensuring a good seal in the coolant circulation pipeline. Next, the external auxiliary heat-conducting copper sleeve 41 is fixed to the outside of the mounting frame 11 and the water-cooled heat-conducting sleeve 31 via a snap-fit structure, ensuring the connector matches the mounting slot 42 and the inlet / outlet water connector 32. Finally, the entire rectifier is fixed to the external equipment or bracket using hexagonal bolts through the mounting holes 15 at the four corners of the mounting frame 11. When the rectifier is working... The heat generated by the rectifier assembly 21 is first transferred to the water-cooled heat-conducting sleeve 31 through the contact surface. The external circulating water-cooling heat dissipation assembly pumps the coolant from the inlet connector 32 into the internal water channel of the water-cooled heat-conducting sleeve 31. The coolant absorbs heat during the flow and flows out from the outlet connector 32, forming a circulating heat dissipation loop. The first heat dissipation fin 33 on the surface of the water-cooled heat-conducting sleeve 31 dissipates some of the heat directly into the air, which helps to enhance the heat dissipation effect. At the same time, the external auxiliary heat-conducting copper sleeve 41 absorbs the heat from the mounting frame 11 and the side of the water-cooled heat-conducting sleeve 31 and conducts it to the second heat dissipation fin 43. When the air flows through the heat dissipation channel between the second heat dissipation fins 43, it forms turbulence through the guide hole 44, which further improves the heat dissipation efficiency. The auxiliary heat dissipation holes 16 on the front and rear sides of the mounting frame 11 promote the convection of internal and external air, quickly remove the heat, and ensure that the rectifier works stably in an environment with high-efficiency heat dissipation.
[0028] 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 water-cooled high-frequency transformer rectifier, comprising an installation mechanism (1), a rectifier mechanism (2), a water-cooled heat dissipation mechanism (3), and an auxiliary heat dissipation mechanism (4). characterized in that The mounting mechanism (1) includes a mounting frame (11), which has a first mounting groove (12), a second mounting groove (13), a through groove (14), a mounting hole (15), and an auxiliary heat dissipation hole (16). The rectifier mechanism (2) includes a rectifier assembly (21), one end of which is provided with an output interface (22), and the other end of which is provided with an input pin (23). The rectifier assembly (21) is adapted to be installed at the corresponding position of the mounting mechanism (1). The water-cooled heat dissipation mechanism (3) includes a water-cooled heat-conducting sleeve (31), which is a copper sleeve with built-in water channels. The water-cooled heat-conducting sleeve (31) is provided with inlet and outlet water connectors (32), and the water-cooled heat-conducting sleeve (31) is also provided with a first heat sink (33). The auxiliary heat dissipation mechanism (4) includes an external auxiliary heat-conducting copper sleeve (41), on which a joint fitting assembly groove (42) is provided, and a second heat sink (43) is provided on the surface of the external auxiliary heat-conducting copper sleeve (41), and a flow guide hole (44) is provided on the external auxiliary heat-conducting copper sleeve (41).
2. A water-cooled high-frequency transformer rectifier according to claim 1, characterized in that: The rectifier assembly (21) is adapted to external circuits through the output interface (22) and input pin (23).
3. A water-cooled high-frequency transformer rectifier according to claim 1, characterized in that: The output interface (22), rectifier assembly (21) and input pin (23) are installed and positioned at the first assembly slot (12) and the second assembly slot (13) of the mounting mechanism (1), and the line conduction adaptation is performed by the through slot (14).
4. The water-cooled high-frequency transformer rectifier according to claim 1, characterized in that: The water-cooled heat-conducting sleeve (31) is fitted to the heat-generating part on the top of the rectifier assembly (21), and the first heat sink (33) consists of multiple pieces and is evenly distributed on the outer surface of the top of the water-cooled heat-conducting sleeve (31).
5. A water-cooled high-frequency transformer rectifier according to claim 1, characterized in that: The inlet and outlet water connectors (32) are symmetrically arranged on one side of the water-cooled heat-conducting sleeve (31), and the inlet and outlet water connectors (32) are used to connect to the external circulating water-cooled heat dissipation components.
6. A water-cooled high-frequency transformer rectifier according to claim 1, characterized in that: The external auxiliary heat-conducting copper sleeve (41) is fitted to the top of the mounting frame (11) and the outer wall of the water-cooled heat-conducting sleeve (31). The second heat sink (43) consists of multiple pieces that are evenly distributed on the top outer surface of the external auxiliary heat-conducting copper sleeve (41). The connector is fitted with the assembly groove (42) to adapt and install the inlet and outlet water connectors (32). The flow guide hole (44) is opened on the second heat sink (43).
7. A water-cooled high-frequency transformer rectifier according to claim 1, characterized in that: The mounting holes (15) are located at the four corners of the mounting frame (11), and the auxiliary heat dissipation holes (16) are multiple and evenly distributed on the front and rear sides of the mounting frame (11).