High-power-density ACDC charging module

Abstract

The utility model provides a high power density ACDC charging module, which comprises a bracket and a machine body, the top of the bracket is fixedly connected with the machine body, the inside of the machine body is fixedly connected with an input module, one side of the input module is connected with a rectifier module, and one side of the rectifier module is connected with a filter module. The utility model has the advantages that the heat conduction frame is made of high heat conduction and insulation materials, heat of heating elements of each module can be conducted to the outside for heat dissipation, heat is prevented from being stored in the machine body, the heat dissipation plate structure is designed and matched with the heat dissipation holes arranged in the honeycomb shape, the surface of the heat dissipation plate and the hole walls of the heat dissipation holes can dissipate heat, the heat dissipation area is greatly increased, and meanwhile, the heat dissipation efficiency is improved. And the fan is arranged below the heat dissipation plate and directly blows towards the heat dissipation plate, so that the air velocity inside the heat dissipation holes and on the surface of the heat dissipation plate is improved, and the heat dissipation speed is greatly improved, thereby realizing rapid heat dissipation and no heat storage of the charging module, and meeting the heat dissipation requirement of the charging module under relatively high power.

Description

Technical Field

[0001] The utility model relates to the technical field of charging modules, in particular to a high-power density ACDC charging module. Background Art

[0002] The ACDC charging module is a device that converts alternating current power (AC) into direct current power (DC), and is a power supply system.

[0003] In the prior art, the power of ACDC charging modules is getting higher and higher, and the heat generated is also relatively large. The conventional heat dissipation method is self-heating or installing a fan to allow internal and external air circulation to achieve heat dissipation. However, the heat dissipation effect is not ideal, and heat is easily stored inside the module, which cannot meet the high power density usage scenario. Therefore, a new high power density ACDC charging module is proposed. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the present invention is to propose a high power density ACDC charging module to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a high power density ACDC charging module, comprising a bracket and a body, wherein the top of the bracket is fixedly connected to the body, an input module is fixedly connected inside the body, one side of the input module is connected to a rectifier module, one side of the rectifier module is connected to a filter module, one side of the filter module is connected to a voltage stabilizing module, and one side of the voltage stabilizing module is connected to an output module;

[0007] A heat-conducting frame is fixedly connected inside the body, and a heat-dissipating plate is fixedly connected at the end of the heat-conducting frame;

[0008] The heat dissipation plate is provided with a plurality of heat dissipation holes, which are in a hexagonal structure and arranged in a honeycomb shape;

[0009] A bracket is fixedly connected to the side of the machine body, and a plurality of fans are fixedly connected to one side of the bracket, with the air outlet ends of the fans facing upwards.

[0010] Preferably, any of the above schemes has a bending angle of ninety degrees, and the top end of the bracket is welded to the body.

[0011] Adopting the above technical solution: the AC to DC charging module is mainly composed of an input module, a rectifier module, a filter module, a voltage stabilizing module and an output module.

[0012] Adopting the above technical solution: The working principle of this AC to DC charging module: The input module is responsible for receiving AC power to protect the circuit from damage by overcurrent; the rectifier module is the core part of the AC to DC module, which is responsible for converting the input AC power into DC power. The full-wave rectifier module usually uses a transformer with a center tap on the secondary side and two diodes to achieve rectification. Each diode is turned on in the positive half cycle and cut off in the negative half cycle, thereby converting AC power into DC power; the filter module is used to smooth the rectified DC power to reduce the pulsating component therein. The filter module usually includes capacitors, inductors and resistors, and uses the characteristics of these components to filter out the AC component in the DC power to make the output voltage more stable; the voltage regulator module is used to maintain the stability of the output voltage to adapt to different load requirements. The voltage regulator module usually adopts a feedback control loop to adjust the input voltage according to the change of the output voltage so that the output voltage remains at a set stable value; the output module is responsible for outputting the stabilized DC power to the external device. The output module usually includes an output voltage indicator and a protection module to prevent overcurrent or overvoltage from causing damage to the external device.

[0013] Preferably, any of the above schemes is that the heat-conducting frame is made of alumina ceramic, the heat-conducting frame is bonded to the heat sink, and the heat-conducting frame is located at one end of the body and connected to the surfaces of heating elements such as resistors, inductors, and diodes of the input module, rectifier module, filter module, voltage regulator module, and output module.

[0014] Adopting the above technical solution: This ACDC charging module adopts a half-bridge or full-bridge topology structure, which can effectively improve the power conversion efficiency. This ACDC charging module selects low-loss ferrite magnetic components and low ESR (equivalent series resistance) capacitors, which can improve the efficiency of the charging module, thereby achieving a high power density of the charging module.

[0015] Preferably, any of the above schemes is that the heat sink is made of alumina ceramics, and the heat sink is located directly above the fan.

[0016] Adopting the above technical solution: the core structure of this module is: heat conduction frame, heat sink, heat dissipation hole, bracket, fan. The core advantages of this module are: good heat dissipation performance, no heat storage, the heat conduction frame is made of high thermal conductivity and insulation material, which can conduct the heat of the heating elements of each module to the outside for heat dissipation, preventing heat storage inside the body, and designing the heat dissipation plate structure, and coordinating with the heat dissipation holes arranged in a honeycomb pattern. The surface of the heat dissipation plate and the hole wall of the heat dissipation hole can dissipate heat, greatly increasing the heat dissipation area. At the same time, there is a fan under the heat dissipation plate, which blows directly at the heat dissipation plate, increasing the air flow rate inside the heat dissipation hole and the surface of the heat dissipation plate, greatly increasing the heat dissipation speed, thereby realizing the rapid heat dissipation of this charging module, without heat storage, and meeting the heat dissipation needs of this charging module at higher power.

[0017] Preferably, any of the above schemes is that the heat dissipation holes penetrate the heat dissipation plate from top to bottom, and the bracket is connected to the side of the body by screws.

[0018] Preferably, any of the above solutions includes at least two fans covering the entire heat sink.

[0019] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0020] The high-power density ACDC charging module is equipped with a heat-conducting frame, a heat sink, heat dissipation holes, a bracket, and a fan. The heat-conducting frame is made of high thermal conductivity and insulation material, which can conduct the heat of the heating elements of each module to the outside for heat dissipation to prevent heat accumulation inside the body. The heat sink structure is designed, and the heat dissipation holes are arranged in a honeycomb shape. The surface of the heat sink and the hole walls of the heat dissipation holes can dissipate heat, which greatly increases the heat dissipation area. At the same time, there is a fan under the heat sink, which blows directly at the heat sink, increases the air flow rate inside the heat dissipation holes and the surface of the heat sink, and greatly increases the heat dissipation speed, thereby realizing rapid heat dissipation of this charging module without heat accumulation, and can meet the heat dissipation needs of this charging module at higher power.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0024] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0025] Figure 3 It is a side view structural schematic diagram of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the utility model when the fan is not installed.

[0027] In the figure: 1- bracket, 2- body, 3- input module, 4- rectifier module, 5- filter module, 6- voltage regulator module, 7- output module, 8- heat conduction frame, 9- heat sink, 10- heat dissipation hole, 11- bracket, 12- fan. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figure 1-4 As shown, the high power density ACDC charging module comprises a bracket 1 and a body 2. The top of the bracket 1 is fixedly connected to the body 2. The inside of the body 2 is fixedly connected to an input module 3. One side of the input module 3 is connected to a rectifier module 4. One side of the rectifier module 4 is connected to a filter module 5. One side of the filter module 5 is connected to a voltage stabilizing module 6. One side of the voltage stabilizing module 6 is connected to an output module 7.

[0031] A heat-conducting frame 8 is fixedly connected to the interior of the body 2, and a heat-dissipating plate 9 is fixedly connected to the end of the heat-conducting frame 8;

[0032] A plurality of heat dissipation holes 10 are provided on the heat dissipation plate 9, and the heat dissipation holes 10 are hexagonal in structure and arranged in a honeycomb shape;

[0033] A bracket 11 is fixedly connected to the side of the body 2, and a plurality of fans 12 are fixedly connected to one side of the bracket 11, with the air outlet ends of the fans 12 facing upward.

[0034] Embodiment 1: The bending angle of the bracket 1 is 90 degrees, and the top of the bracket 1 is welded to the body 2. The AC-to-DC charging module mainly consists of an input module 3, a rectifier module 4, a filter module 5, a voltage stabilizing module 6 and an output module 7.

[0035] Embodiment 2: The heat-conducting frame 8 is made of alumina ceramic material, and the heat-conducting frame 8 is bonded to the heat sink 9. The heat-conducting frame 8 is located at one end of the body 2 and is connected to the surfaces of heating elements such as resistors, inductors, and diodes of the input module 3, the rectifier module 4, the filter module 5, the voltage regulator module 6, and the output module 7.

[0036] This ACDC charging module adopts a half-bridge or full-bridge topology, which can effectively improve the power conversion efficiency. This ACDC charging module selects low-loss ferrite magnetic components and low ESR (equivalent series resistance) capacitors to improve the efficiency of the charging module, thereby achieving a high power density of the charging module.

[0037] Embodiment 3: The heat sink 9 is made of alumina ceramics and is located directly above the fan 12. The heat conducting frame 8 is made of a highly thermally conductive and insulating material and can conduct the heat of the heating elements of each module to the outside for heat dissipation.

[0038] The working principle of the utility model is as follows:

[0039] The input module 3 is responsible for receiving the AC power supply to protect the circuit from damage caused by overcurrent; the rectifier module 4 is the core part of the AC to DC module, which is responsible for converting the input AC power into DC power. The full-wave rectifier module 4 usually uses a transformer with a center tap on the secondary side and two diodes to achieve rectification. Each diode is turned on in the positive half cycle and cut off in the negative half cycle, thereby converting the AC power into DC power; the filter module 5 is used to smooth the rectified DC power to reduce the pulsating component therein. The filter module 5 usually includes capacitors, inductors and resistors, and uses the characteristics of these components to filter out the AC component in the DC power to make the output voltage more stable; the voltage regulator module is used to maintain the stability of the output voltage to adapt to different load requirements. The voltage regulator module 6 usually adopts a feedback control loop to adjust the input voltage according to the change of the output voltage so that the output voltage remains at a set stable value; the output module 7 is responsible for outputting the stabilized DC power to the external device. The output module 7 usually includes an output voltage indicator and a protection module to prevent overcurrent or overvoltage from damaging the external device.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The high power density ACDC charging module is provided with a heat conducting frame 8, a heat sink 9, heat dissipation holes 10, a bracket 11, and a fan 12. The heat conducting frame 8 is made of a high thermal conductivity and insulating material, and can conduct the heat of the heating elements of each module to the outside for heat dissipation to prevent heat from being stored inside the body 2. The heat sink 9 structure is designed, and the heat dissipation holes 10 are arranged in a honeycomb shape. The surface of the heat sink 9 and the hole wall of the heat dissipation hole 10 can dissipate heat, which greatly increases the heat dissipation area. At the same time, there is a fan 12 below the heat sink 9, which blows directly at the heat sink 9, thereby increasing the air flow rate inside the heat dissipation hole 10 and on the surface of the heat sink 9, greatly increasing the heat dissipation speed, thereby realizing rapid heat dissipation of this charging module without heat storage, and meeting the heat dissipation needs of this charging module at higher power.

Claims

1. A high power density ACDC charging module, comprising a bracket (1) and a body (2), wherein the top of the bracket (1) is fixedly connected to the body (2), characterized in that: An input module (3) is fixedly connected inside the machine body (2); one side of the input module (3) is connected to a rectifier module (4); one side of the rectifier module (4) is connected to a filter module (5); one side of the filter module (5) is connected to a voltage stabilizing module (6); and one side of the voltage stabilizing module (6) is connected to an output module (7); A heat-conducting frame (8) is fixedly connected to the interior of the machine body (2), and a heat-dissipating plate (9) is fixedly connected to the end of the heat-conducting frame (8); The heat dissipation plate (9) is provided with a plurality of heat dissipation holes (10), and the heat dissipation holes (10) are in a hexagonal structure and arranged in a honeycomb shape; A bracket (11) is fixedly connected to the side of the machine body (2), and a plurality of fans (12) are fixedly connected to one side of the bracket (11), with the air outlet ends of the fans (12) facing upwards.

2. A high power density ACDC charging module as claimed in claim 1, characterized in that: The bending angle of the bracket (1) is ninety degrees, and the top end of the bracket (1) is welded to the machine body (2).

3. A high power density ACDC charging module as claimed in claim 2, characterized in that: The heat-conducting frame (8) is made of alumina ceramic material. The heat-conducting frame (8) is bonded to the heat sink (9). The heat-conducting frame (8) is located at one end of the body (2) and is connected to the surfaces of heating elements such as resistors, inductors, and diodes of the input module (3), the rectifier module (4), the filter module (5), the voltage stabilizing module (6), and the output module (7).

4. A high power density ACDC charging module as claimed in claim 3, characterized in that: The heat sink (9) is made of alumina ceramics, and the heat sink (9) is located directly above the fan (12).

5. A high power density ACDC charging module as claimed in claim 4, characterized in that: The heat dissipation holes (10) penetrate the heat dissipation plate (9) vertically, and the bracket (11) is connected to the side of the machine body (2) by screws.

6. A high power density ACDC charging module as claimed in claim 5, characterized in that: There are at least two fans (12) and they cover the entire heat sink (9).

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