Efficient three-dimensional heat dissipation water channel

Abstract

The utility model discloses a high-efficiency three-dimensional heat dissipation water channel, which comprises a heat dissipation box, the side surface of which is suitable for fitting and installing a heat-dissipated power device, and the interior of which is provided with a water channel cavity for accommodating cooling liquid; the water inlet is formed in one end of the heat dissipation box and used for leading cooling liquid into the water channel cavity; the water outlet is formed in the other end of the heat dissipation box and used for discharging the cooling liquid from the water channel cavity; the enhanced heat conduction core is arranged in the water channel cavity and used for enhancing heat transfer between the power device and the cooling liquid, the enhanced heat conduction core is provided with one structure selected from a porous structure and a multi-pipe structure, the porous structure comprises a plurality of pores penetrating through the enhanced heat conduction core, and the multi-pipe structure comprises a plurality of heat conduction holes penetrating through the enhanced heat conduction core. The multi-tube structure includes a plurality of tubular channels through the reinforced thermally conductive core. The LED lamp has the advantages of being more efficient, compact and better in heat dissipation effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to DC DC converter heat dissipation device technical field especially relates to a kind of high -efficient three -dimensional heat dissipation waterway. BACKGROUND

[0002] Direct current / direct current (DC / DC) converter is a key component in fuel cell system, responsible for boosting the power generated by fuel cell module to a stable voltage to power the electrical equipment (such as driving motor and power battery). Traditional DC / DC converter usually uses planar heat dissipation method to cool power devices. This method lays power devices on the bottom surface of the box and sets a flat waterway below it, transferring heat to the cooling liquid through the bottom of the box. However, the cooling area of this planar heat dissipation scheme is limited, and as the power of DC / DC converter increases, its heat dissipation capacity gradually becomes insufficient. In order to meet the heat dissipation needs of high-power devices, it is usually necessary to increase the flow of cooling liquid or expand the area of flat waterway, which inevitably leads to the increase of DC / DC converter volume, making it difficult to meet the development trend of system miniaturization and lightweight.

[0003] In order to improve the space utilization and heat dissipation efficiency, some existing technologies try to use three-dimensional waterway design. For example, Chinese utility model patent CN217362881U discloses a DC / DC converter that uses a three-dimensional waterway to enhance heat dissipation. However, this scheme usually relies on mechanical processing or mold forming to manufacture the cooling liquid flow channel and heat-conducting fins inside the waterway. Due to the limitations of processing technology, the heat-conducting fins usually need to have a larger thickness (e.g. above 1.5mm) and spacing (e.g. above 3mm). Larger fin spacing will result in a decrease in the number of fins, thus reducing the heat dissipation efficiency. In addition, the heat-conducting fins in this scheme can usually only be arranged on the two end faces that need to be cooled, while the upper and lower end faces of the waterway cannot be effectively utilized, further limiting the heat exchange area. Therefore, in the case of large amount of heat generated by high-power devices, the heat dissipation capacity of this three-dimensional waterway design is still insufficient, which cannot meet the heat dissipation needs of high-power-density DC / DC converters. This limits the improvement of the overall performance of fuel cell systems and hinders their widespread application in electric vehicles and other fields.

[0004] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and the utility model is made based on this situation. UTILITY MODEL CONTENTS

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a three-dimensional heat dissipation waterway that is more efficient, compact and has better heat dissipation effect.

[0006] The utility model is implemented through the following technical solutions:

[0007] To solve the above technical problems, the utility model provides a kind of high -efficient three -dimensional heat dissipation waterway, including:

[0008] Heat dissipation box, its side is suitable for the power device being heat-dissipated and is attached installation, and its inside has waterway cavity for accommodating cooling liquid;

[0009] Water inlet, it is arranged in one end of the heat dissipation box, for cooling liquid is introduced into the waterway cavity;

[0010] Water outlet, it is arranged in the other end of the heat dissipation box, for cooling liquid is discharged from the waterway cavity;And

[0011] Enhanced heat conduction core, it is arranged in the waterway cavity, for enhancing the heat transfer between the power device and cooling liquid, the enhanced heat conduction core has one of structure selected from porous structure and multi -tube structure, wherein the porous structure includes multiple apertures through the enhanced heat conduction core, and the multi -tube structure includes multiple tubular passages through the enhanced heat conduction core.

[0012] To further solve the technical problems to be solved by the utility model, in a kind of high -efficient three -dimensional heat dissipation waterway provided by the utility model, each side wall of the enhanced heat conduction core is closely attached with the corresponding side wall of the waterway cavity.

[0013] To further solve the technical problems to be solved by the utility model, in a kind of high -efficient three -dimensional heat dissipation waterway provided by the utility model, the enhanced heat conduction core is metal heat conduction piece.

[0014] To further solve the technical problems to be solved by the utility model, in a kind of high -efficient three -dimensional heat dissipation waterway provided by the utility model, the heat dissipation box includes main box body, and the main box body side is equipped with opening and the opening place sealingly connected with side cover.

[0015] To further solve the technical problems to be solved by the utility model, in a kind of high -efficient three -dimensional heat dissipation waterway provided by the utility model, the main box body, enhanced heat conduction core and side cover are welded together.

[0016] To further solve the technical problems to be solved by the utility model, in a kind of high -efficient three -dimensional heat dissipation waterway provided by the utility model, multiple support columns are arranged between the main box body and the side cover, the support column penetrates the enhanced heat conduction core, for enhancing the structural strength of the heat dissipation box and supporting the enhanced heat conduction core.

[0017] To further solve the technical problems to be solved by the utility model, in a kind of high -efficient three -dimensional heat dissipation waterway provided by the utility model, the heat dissipation box and enhanced heat conduction core are integrally formed by 3D printing.

[0018] To further solve the technical problems to be solved by the utility model, the utility model provides a kind of efficient three-dimensional heat dissipation waterway, the heat dissipation box is equipped with several guide vanes respectively located at water inlet and water outlet, one end of the guide vane is aligned with water inlet or water outlet, and the other end extends along the length direction of the heat dissipation box to guide the flow of coolant.

[0019] Compared with prior art, the utility model has the following advantages:

[0020] The utility model provides a kind of efficient three-dimensional heat dissipation waterway, it adopts a kind of enhanced heat conduction core located in waterway cavity, the heat conduction core can be porous structure or multi-tube structure, increases the heat dissipation area and improves heat dissipation efficiency.This design makes coolant be in contact with heat conduction core fully, to quickly take away the heat generated by power device, simultaneously, enhanced heat conduction core and waterway cavity are closely adhered, further improve heat exchange efficiency.Compared with traditional plane heat dissipation mode or existing three-dimensional waterway scheme, the heat dissipation waterway structure of the utility model is more compact, and heat dissipation efficiency is higher, and manufacturing cost is lower, and it is more suitable for the miniaturization DC / DC converter of higher heat dissipation requirement. BRIEF DESCRIPTION OF DRAWINGS

[0021] The specific embodiment of the utility model is further explained in detail in combination with the drawings, wherein:

[0022] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the exploded schematic diagram of the utility model;

[0024] Figure 3 It is the three-dimensional structure schematic diagram of main box;

[0025] Figure 4 It is the three-dimensional structure schematic diagram of side cover;

[0026] Figure 5 It is the three-dimensional structure schematic diagram of enhanced heat conduction core of porous structure;

[0027] Figure 6 It is the three-dimensional structure schematic diagram of enhanced heat conduction core of multi-tube structure;

[0028] Figure 7 It is the section view schematic diagram of the utility model. DETAILED DESCRIPTION

[0029] To make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model is further explained in detail in combination with the drawings and specific embodiment.

[0030] As Figures 1 to 7The utility model discloses a preferred embodiment of efficient three-dimensional heat dissipation waterway. The heat dissipation waterway mainly includes heat dissipation box 1 and enhanced heat conduction core 2.

[0031] The heat dissipation box 1 side is suitable for the installation of the power device 3 to be dissipated, and the inside forms the waterway cavity 11 for containing the cooling liquid. One end of the heat dissipation box 1 is provided with the water inlet 12 for introducing the cooling liquid into the waterway cavity 11, and the other end is provided with the water outlet 13 for discharging the cooling liquid from the waterway cavity 11.

[0032] The enhanced heat conduction core 2 is arranged in the waterway cavity 11, and its main function is to enhance the heat transfer between the power device 3 and the cooling liquid. The enhanced heat conduction core 2 can adopt a porous structure 21 or a multi-tube structure 22.

[0033] As shown in the figure, Figure 5 The porous structure 21 refers to the dense honeycomb pores on the enhanced heat conduction core 2, for example, a porous honeycomb foam copper or sintered metal powder material can be used. These pores increase the contact area of the cooling liquid and the heat conduction core, thereby improving the heat dissipation efficiency.

[0034] As shown in the figure, Figure 6 The multi-tube structure 22 refers to the dense small tubular channels in the enhanced heat conduction core 2. These tubular channels usually extend parallel to the length direction of the heat dissipation box 1, for example, a wire drawing process or a 3D printing technology can be used for manufacturing. The multi-tube structure 22 not only can increase the heat exchange area and the heat dissipation efficiency, but also can effectively reduce the flow resistance of the cooling liquid and reduce the pressure drop.

[0035] In this embodiment, each side wall of the enhanced heat conduction core 2 is tightly attached to the corresponding side wall of the waterway cavity 11. This design has several advantages: first, it can ensure that the four faces of the heat dissipation box 1 can effectively conduct heat to the enhanced heat conduction core 2, thereby maximizing the heat exchange area; second, it can limit the flow path of the cooling liquid, forcing the cooling liquid to flow through the pores of the porous structure 21 or the tubular channels of the multi-tube structure 22 of the enhanced heat conduction core 2, thereby improving the heat dissipation efficiency; finally, the tight attachment design also helps to improve the overall strength and stability of the heat dissipation structure.

[0036] In order to further improve the heat conduction performance, the enhanced heat conduction core 2 is preferably made of a high thermal conductivity metal material, such as copper or aluminum.

[0037] The heat dissipation box 1 can be composed of a main box body 1a and a side cover 1b. The main box body 1a side is provided with an opening, and the side cover 1b is sealingly connected to the opening. In order to ensure the air tightness and water tightness of the heat dissipation waterway, the main box body 1a, the enhanced heat conduction core 2 and the side cover 1b are preferably connected together by welding. Of course, other connection methods such as bonding, mechanical connection, etc. can also be used as long as the sealing performance can be guaranteed.

[0038] The reinforced heat-conducting core 2 can be customized according to the internal structural space of the water channel cavity 11. For example, the reinforced heat-conducting core 2 can be cut into a desired shape using methods such as wire cutting, electric spark machining, etc. to fully fill the space within the water channel cavity 11, without the need for mold opening, thereby reducing manufacturing costs. For the reinforced heat-conducting core 2 of the multi-tube structure 22, batch production can also be carried out using processes such as extrusion molding, etc.

[0039] In order to enhance the structural strength of the heat dissipation box 1 and support the reinforced heat-conducting core 2, a plurality of support columns 15 can be provided between the main box body 1a and the side cover 1b, which pass through the reinforced heat-conducting core 2.

[0040] As a preferred embodiment of the present application, the heat dissipation box 1 and the reinforced heat-conducting core 2 can also be integrally formed using 3D printing technology, thereby further simplifying the manufacturing process and improving the overall structure.

[0041] In order to optimize the flow of the cooling liquid, a flow guide plate 14 can be provided in the heat dissipation box 1 near the water inlet 12 and the water outlet 13. One end of the flow guide plate 14 is aligned with the water inlet 12 or the water outlet 13, and the other end extends along the length direction of the heat dissipation box 1, usually in an arc shape, to guide the flow of the cooling liquid and reduce the pressure drop.

Claims

1. A high efficiency three-dimensional heat dissipation waterway, characterized in that, The application relates to a heat dissipation box (1) suitable for being attached to a power device (3) to be cooled, and having a water channel cavity (11) for containing cooling liquid inside; a water inlet (12) arranged at one end of the heat dissipation box (1) for introducing the cooling liquid into the water channel cavity (11); a water outlet (13) arranged at the other end of the heat dissipation box (1) for discharging the cooling liquid from the water channel cavity (11); and a reinforced heat conduction core (2) arranged in the water channel cavity (11) for enhancing heat transfer between the power device (3) and the cooling liquid, the reinforced heat conduction core (2) having one structure selected from a porous structure (21) and a multi-tube structure (22), wherein the porous structure (21) comprises a plurality of pores penetrating through the reinforced heat conduction core (2), and the multi-tube structure (22) comprises a plurality of tubular channels penetrating through the reinforced heat conduction core (2). Each side wall of the reinforced heat conduction core (2) is tightly attached to the corresponding side wall of the water channel cavity (11). The reinforced heat conduction core (2) is a metal heat conduction member. The heat dissipation box (1) comprises a main box body (1a) provided with an opening on the side and having a side cover (1b) sealingly connected to the opening. The main box body (1a), the reinforced heat conduction core (2) and the side cover (1b) are welded together. A plurality of support columns (15) penetrating through the reinforced heat conduction core (2) are arranged between the main box body (1a) and the side cover (1b) for enhancing the structural strength of the heat dissipation box (1) and supporting the reinforced heat conduction core (2).

2. The high efficiency three-dimensional heat dissipating water channel according to claim 1, wherein: The heat dissipation box (1) and the reinforced heat conduction core (2) are integrally formed by 3D printing.

3. The high efficiency three-dimensional heat dissipating water channel according to claim 1, wherein: A plurality of flow guide plates (14) are arranged in the heat dissipation box (1) and located at the water inlet (12) and the water outlet (13), one end of each flow guide plate (14) being aligned with the water inlet (12) or the water outlet (13) and the other end extending along the length direction of the heat dissipation box (1) to guide the flow of the cooling liquid.

4. The high efficiency three-dimensional heat dissipating water channel according to claim 1, wherein: ​ 5. The high efficiency three-dimensional heat dissipating water channel according to claim 4, wherein: ​ 6. The high efficiency three-dimensional heat dissipating water channel according to claim 4, wherein: ​ 7. The high efficiency three-dimensional heat dissipating water channel according to claim 1, wherein: ​ 8. The high efficiency three-dimensional heat dissipating water channel of claim 1, wherein: ​

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