A heat sink and charging pile

Abstract

The embodiment of the application provides a radiator and a charging pile. It relates to the technical field of electrical equipment. The radiator comprises a first supporting body, a third supporting body and at least one second supporting body, the first supporting body, the second supporting body and the third supporting body all have channels for air circulation, and the first supporting body, the second supporting body and the third supporting body are connected in sequence side by side; a plurality of blowing pieces are arranged on the channels correspondingly, so that the air in the first supporting body, the second supporting body and the third supporting body flows. The radiator of the application solves the problem that the cost of changing the size of the radiator according to the increase of the power module is high.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and in particular to a radiator and a charging pile. Background Technology

[0002] The power module (also known as the charging module) is the most important component inside the charging pile. Its main function is to convert the input AC power into DC power to charge the car.

[0003] The heatsink in the power module uses an independent airflow cooling system, the core feature of which is that the cooling airflow of the heatsink is isolated from other parts of the power module. In related technologies, the heatsink includes a sheet metal housing and several heat dissipation fins disposed within the sheet metal housing. The heat dissipation fins form an airflow channel to dissipate heat from the power module.

[0004] As the power of charging piles gradually increases, the power modules also need to be enlarged. However, when changing the size of existing heat sinks, the sheet metal molds and heat sink fin structures need to be redesigned. Utility Model Content

[0005] This application provides a heat sink and a charging pile to solve the problem that existing heat sinks are costly to change in size as the power module increases.

[0006] On one hand, embodiments of this application provide a heat sink, including:

[0007] A first support body, a third support body, and at least one second support body, wherein the first support body, the second support body, and the third support body each have a channel for air circulation, and the first support body, the second support body, and the third support body are connected side by side in sequence;

[0008] Multiple air blowing components are disposed on the channel to allow air to flow within the first support, the second support, and the third support.

[0009] In one possible implementation, a plurality of second supports are arranged in a single row between the first support and the third support, and adjacent second supports are welded and fixed together. The second supports on both sides are welded and fixed to the first support and the third support, respectively.

[0010] In one possible implementation, the first support includes a first side plate and a first heat sink, the channel is located on the first heat sink, and the first side plate is located on the side of the first heat sink;

[0011] The third support includes a second side plate and a second heat sink, the channel is located on the second heat sink, and the second side plate is located on the side of the second heat sink.

[0012] In one possible implementation, the height of the first side plate is greater than that of the first heat sink, and the height of the second side plate is greater than that of the second heat sink, so that a cavity for accommodating electrical components is formed between the first side plate and the second side plate.

[0013] In one possible implementation, the first heat sink, the second heat sink, and the second support have the same cross-section.

[0014] In one possible implementation, the first support, the second support, and the third support are all integrally molded parts.

[0015] In one possible implementation, the blowing element includes a fan, which is respectively disposed on the first support, the second support and the third support to allow air to flow in the channel.

[0016] In one possible implementation, a front ventilation panel is also included, the front ventilation panel being provided with ventilation mesh holes, the front ventilation panel being disposed on the side of the channel away from the blower.

[0017] In one possible implementation, a cover plate and a sealing plate are also included. The sealing plate is disposed on the blower and connected to the first side plate and the second side plate respectively. The front ventilation plate, the first side plate, the second side plate and the sealing plate surround the cavity. The cover plate covers the first side plate and the second side plate to close the cavity. A sealing strip is provided on the cover plate to seal the cavity.

[0018] On the other hand, this application provides a charging pile, including a power module and a heat sink disposed on the power module.

[0019] This application provides a heat sink and a charging pile. The heat sink is assembled from a first support body, a third support body, and at least one second support body. A blower drives the airflow within the first, third, and second support bodies to achieve a heat dissipation effect. Furthermore, the size of the heat sink can be changed by selecting different numbers of second support bodies according to the power requirements of the charging pile, without redesigning the heat sink structure or changing the mold. This allows the size of the heat sink to be changed according to the power module of the charging pile, reducing the production time and lowering the production cost. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0021] Figure 1This is an exploded structural diagram of the radiator provided in this application;

[0022] Figure 2 for Figure 1 Front view of the middle box;

[0023] Figure 3 This is a schematic diagram of the connection structure of the box.

[0024] Explanation of reference numerals in the attached figures:

[0025] 110. First support body; 111. First side plate; 112. First heat sink; 130. Third support body; 131. Second side plate; 132. Second heat sink; 120. Second support body;

[0026] 200. Air blower; 210. Mounting plate; 220. Fan;

[0027] 300. Front ventilation panel;

[0028] 400. Cover plate;

[0029] 500, sealing plate;

[0030] 600. Sealing strip.

[0031] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0032] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0033] First, let me explain the terms used in this application:

[0034] Aluminum extrusion molding: refers to applying strong pressure to an aluminum billet placed in a mold cavity (or extrusion cylinder), forcing the aluminum billet to undergo directional plastic deformation;

[0035] Independent sealed air duct: refers to a system that uses physical isolation (such as a deflector or baffle) to ensure that airflow only passes through a designated channel;

[0036] Shovel teeth: refers to a method of cutting metal sheets into heat sinks of a certain shape using a specific mechanical device;

[0037] Tooth cutting: refers to a process of inserting or cutting metal sheets or plates into specific shapes using specialized machines.

[0038] The power module (also known as the charging module) is the most important component inside the charging pile. Its main function is to convert the input AC power into DC power to charge the car.

[0039] The heatsink in the power module uses an independent airflow cooling system, the core feature of which is that the cooling airflow of the heatsink is isolated from other parts of the power module. Related technologies include a sheet metal housing and several heat dissipation fins disposed within the sheet metal housing. These fins form an airflow channel for heat dissipation from the power module.

[0040] As the power of charging piles gradually increases, the power modules also need to be enlarged. However, when changing the size of existing heat sinks, the sheet metal molds and heat sink fin structures need to be redesigned.

[0041] This application provides a heat sink and a charging pile. The heat sink is assembled by a first support body, a third support body, and at least one second support body. A blower drives the air flow within the first support body, the third support body, and the second support body to achieve a heat dissipation effect. Furthermore, the size of the heat sink can be changed by selecting different numbers of second support bodies according to the power requirements of the charging pile, without redesigning the structure of the heat sink or changing the mold. This allows the size of the heat sink to be changed according to the changes in the power module of the charging pile, reducing the production cycle and lowering the production cost.

[0042] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0043] This application provides a heat sink, referring to... Figure 1 The heat sink includes:

[0044] A first support 110, a third support 130, and at least one second support 120, each of which has a channel for air circulation, are connected side by side in sequence.

[0045] Multiple air blowers 200 are arranged on the channel to allow air to flow within the first support 110, the second support 120, and the third support 130.

[0046] The first support 110, the second support 120 and the third support 130 are each equipped with a number of heat dissipation fins. The adjacent heat dissipation fins form a channel for air circulation. The heat dissipation fins have the function of conducting heat to transfer heat into the channel and dissipate it through the flow of air, thereby achieving air cooling.

[0047] The first support body 110, the second support body 120, and the third support body 130 are connected in sequence to form a box structure. The outer walls of the first support body 110, the second support body 120, and the third support body 130 serve as the box wall. This breaks the traditional structural feature of the box and the heat dissipation fins being separate, and integrates the box and the internal heat dissipation fins into one unit. The box structure is formed by splicing the first support body 110, the second support body 120, and the third support body 130. When the size of the heat dissipation radiator is changed, there is no need to change the sheet metal mold, which reduces the manufacturing cost and improves the adaptability of the heat dissipation radiator to different size and structural requirements.

[0048] Compared to traditional radiators, this design uses sheet metal molds to manufacture the casing, followed by bending to form the four side walls. The four side walls are then connected and sealed using a riveting and adhesive process. The first support body 110, the second support body 120, and the third support body 130 are welded together using friction stir welding; this secures the adjacent support bodies 110, 120, and 130 and provides a good sealing effect, forming an independent sealed air duct.

[0049] Compared to the sidewalls of traditional heat sinks, when the power of the charging pile power module increases from 60kW to 80kW or 120kW, the number of internal components of the power module increases, and the performance requirements for the sidewalls also increase accordingly. Traditional sidewalls often need to be thickened to meet higher strength requirements, but this increases material costs and structural weight. In this application, however, the outer walls of the first support 110, the second support 120, and the third support 130 are used as the casing walls, improving the overall structural stability. Therefore, structural stability can be achieved without increasing the thickness of the sidewalls.

[0050] Furthermore, by embedding the heat dissipation fins within the first support 110, the second support 120, and the third support 130, the installation gap between the heat dissipation fins and the casing wall in traditional structures is reduced. This further improves the stability of the structure and optimizes space utilization without compromising the airflow cooling effect. It not only ensures heat dissipation efficiency but also makes full use of limited space, enhancing the compactness and aesthetics of the entire device.

[0051] The multiple second supports 120 have the same structure, which facilitates mass production. When the size of the heat sink is increased, only the number of second supports 120 needs to be increased. There is no need to redesign and manufacture sheet metal molds, which reduces manufacturing costs and improves production efficiency, providing the required heat sink after the power module of the charging pile is changed.

[0052] In other embodiments, when the required radiator diameter is small, the second support 120 can be removed, and only the first support 110 and the third support 130 can be welded and fixed. This will not be elaborated further here.

[0053] For example, when multiple second supports are provided, multiple second supports 120 are arranged in a single row between the first support 110 and the third support 130, and adjacent second supports 120 are welded and fixed together. The second supports 120 on both sides are welded and fixed to the first support 110 and the third support 130 respectively.

[0054] In one possible implementation, refer to Figure 1 and Figure 2 The first support body 110 includes a first side plate 111 and a first heat sink 112, with the support body located on the first heat sink 112 and the first side plate 111 located on the side of the first heat sink 112.

[0055] The first heat sink 112 has several parallel heat dissipation fins with spacing between adjacent fins. The first heat sink 112 has open ends to form airflow channels. Using the first side plate 111 as the side wall of the housing improves the overall structural stability, achieving structural stability without increasing the thickness of the side wall.

[0056] The first side plate 111 and the first heat sink 112 are integrally formed aluminum extrusion parts. The connection between the first side plate 111 and the first heat sink 112 is more stable. When the first side plate 111 is used as the side wall of the box, the first side plate 111 has a stronger load-bearing capacity. Therefore, even without increasing the thickness of the first side plate 111, it still has better strength. The aluminum extrusion molding process has the advantages of high production efficiency, low cost, high product dimensional accuracy, and good surface quality.

[0057] In one possible implementation, refer to Figure 1 and Figure 2 The third support 130 includes a second side plate 131 and a second heat sink 132. The channel is located on the second heat sink 132, and the second side plate 131 is located on the side of the second heat sink 132.

[0058] The second side plate 131 and the second heat sink 132 are integrally formed aluminum extrusion parts. The connection between the second side plate 131 and the second side plate 131 part is more stable. When the second side plate 131 is used as the side wall of the box, the second side plate 131 has a stronger load-bearing capacity. Therefore, even without increasing the thickness of the second side plate 131, it still has better strength.

[0059] The third support 130 is symmetrically arranged with the first support 110. The second side plate 131 is located to the right of the second heat sink 132, serving as the right side wall of the enclosure. The first side plate 111 is located to the left of the first heat sink 112, serving as the left side wall of the enclosure.

[0060] Reference Figure 2 The first heat sink 112, the second heat sink 132, and the second support 120 all have friction stir welding points, such as... Figure 2 The solid black dots in the center are the welding points, which are used to weld the various parts through friction stir welding.

[0061] The second support body 120 is also a one-piece aluminum extrusion molded part. Multiple second support bodies 120 are formed by aluminum extrusion. During the production process of the heat sink, the number of second support bodies 120 can be selected according to the size requirements of the heat sink, and the second support bodies 120 are arranged between the first support body 110 and the third support body 130, with the two ends of the second support body 120 aligned with the two ends of the first support body 110 and the third support body 130. Compared with traditional heat sinks, there is no need to change the production mold, reducing production costs. The heat dissipation fins of the second support body 120, the first heat sink 112, and the second heat sink 132 are all formed by aluminum extrusion. Compared with the traditional heat dissipation fins which are formed by shoveling or shaping teeth combined with CNC (numerical control machining), manufacturing is simpler and more convenient, and it avoids the secondary installation of heat dissipation fins to the chassis, improving production efficiency and avoiding the sealing problems that exist when installing heat dissipation fins.

[0062] In one possible implementation, refer to Figure 1 and Figure 3 The height of the first side plate 111 is greater than that of the first heat sink 112, and the height of the second side plate 131 is greater than that of the second heat sink 132, so that a cavity for accommodating electrical components is formed between the first side plate 111 and the second side plate 131.

[0063] The first side plate 111 and the second side plate 131 are relatively high, so that the left channel and the right channel are both L-shaped. Parts of the first side plate 111 and the second side plate 131 protrude above the first heat sink 112 and the second heat sink 132, respectively, to form cavities for accommodating electrical components.

[0064] In one possible implementation, the first heat sink 112, the second heat sink 132, and the second support 120 have the same cross-section.

[0065] The first heat sink 112, the second heat sink 132, and the second support 120 have identical cross-sections. This uniform cross-sectional structure ensures consistent shape along its entire length, making the extrusion process more stable and simplifying mold design and manufacturing, thereby reducing production costs and complexity. In subsequent machining, the machining path and program design for the uniform cross-section structure are simpler and more direct. Due to the consistent cross-sectional shape, the machine tool can employ standardized machining programs to precisely machine localized areas, such as removing some heat sink fins to make room for the fan 220. This consistency reduces the number of adjustments and tool changes during machining, improving machining efficiency and accuracy.

[0066] In one possible implementation, the blower 200 includes a fan 220, which is respectively disposed on the first support 110, the second support 120, and the third support 130 to circulate air within the channel. The blower 200 also includes a mounting plate 210, on which the fan 220 is disposed. The mounting plate 210 is welded and fixed to the ends of the first support 110, the second support 120, and the third support 130.

[0067] Mounting plate 210 is installed at the end of the enclosure. A portion of the heat dissipation fins on the ends of the first support 110, second support 120, and third support 130 is machined off to create space for the fan 220. Mounting plate 210 is connected to the ends of the first support 110, second support 120, and third support 130 by bolts or screws. Furthermore, to improve overall sealing, a sealing strip 600 is installed between mounting plate 210 and the enclosure to enhance the sealing effect.

[0068] In one possible implementation, the radiator further includes a front ventilation plate 300, which has ventilation mesh holes and is located on the side of the channel away from the blower 200.

[0069] The front ventilation panel 300 has a mesh ventilation opening, which faces the first support 110, the second support 120, and the third support 130 to allow airflow within these three supports. The front ventilation panel 300 is fully welded to the housing using cold metal transfer welding to improve the sealing effect between the front ventilation panel 300 and the first side panel 111 and the second side panel 131.

[0070] The front ventilation panel 300, the first side panel 111, and the second side panel 131 are at the same height to facilitate the formation of a cavity for placing electrical components.

[0071] In one possible implementation, refer to Figure 1 The radiator also includes a cover plate 400 and a sealing plate 500. The sealing plate 500 is disposed on the blower 200 and is connected to the first side plate 111 and the second side plate 131 respectively. The front ventilation plate 300, the first side plate 111, the second side plate 131 and the sealing plate 500 form a cavity. The cover plate 400 covers the first side plate 111 and the second side plate 131 to seal the cavity.

[0072] The sealing plate 500 is fully welded to the first side plate 111 and the second side plate 131 by cold metal transfer welding. The top of the sealing plate 500 is flush with the top of the first side plate 111 and the second side plate 131, so that the front ventilation plate 300, the first side plate 111, the second side plate 131 and the sealing plate 500 form a rectangular cavity, which is sealed by the cover plate 400.

[0073] The cover plate 400 is fixed to the top of the front ventilation plate 300, the first side plate 111, the second side plate 131 and the sealing plate 500 by means of bolts or screws.

[0074] In one possible implementation, refer to Figure 1 A sealing strip 600 is provided on the cover plate 400 to seal the cavity.

[0075] A sealing strip 600 is circumferentially arranged around the top of the front ventilation panel 300, the first side panel 111, the second side panel 131, and the sealing plate 500 to seal the gap between the cover plate 400 and the front ventilation panel 300, the first side panel 111, the second side panel 131, and the sealing plate 500, thereby improving the sealing effect. The sealing effect of the cavity is further enhanced by a full cold metal transition weld using the sealing strip 600, achieving an IP56 protection rating (dustproof rating 5, waterproof rating 6). Compared to traditional heat sinks that use riveting and adhesive bonding for sealing, this method offers better durability.

[0076] This application provides a charging pile, including a power module and a heat sink disposed on the power module. The heat sink in this embodiment has the same structure as the heat sink provided in any of the above embodiments and can bring the same or similar technical effects; therefore, it will not be described in detail here, but can be referred to the description of the above embodiments.

[0077] The charging pile provided in this application embodiment has a heat sink in the power module, which is spliced ​​together by a first support body 110, a third support body 130 and at least one second support body 120. The air in the first support body 110, the third support body 130 and the second support body 120 is driven by a blower 200 to achieve a heat dissipation effect. Different numbers of second support bodies 120 can be selected according to the changes in the power requirements of the charging pile to change the size of the heat sink. There is no need to redesign the structure of the heat sink or change the mold, so that the size of the heat sink can be changed according to the changes in the power module of the charging pile, reducing the production period and reducing the production cost.

[0078] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A radiator, characterized in that, include: A first support (110), a third support (130), and at least one second support (120), wherein the first support (110), the second support (120), and the third support (130) each have a channel for air circulation, and the first support (110), the second support (120), and the third support (130) are connected side by side in sequence; Multiple air blowers (200) are disposed on the channel to allow air to flow within the first support (110), the second support (120), and the third support (130).

2. The radiator according to claim 1, characterized in that, Multiple second supports (120) are arranged in a single row between the first support (110) and the third support (130). Adjacent second supports (120) are welded and fixed together. The second supports (120) on both sides are welded and fixed to the first support (110) and the third support (130) respectively.

3. The radiator according to claim 1, characterized in that, The first support (110) includes a first side plate (111) and a first heat sink (112), the channel is located on the first heat sink (112), and the first side plate (111) is disposed on the side of the first heat sink (112); The third support (130) includes a second side plate (131) and a second heat sink (132), the channel is located on the second heat sink (132), and the second side plate (131) is disposed on the side of the second heat sink (132).

4. The radiator according to claim 3, characterized in that, The height of the first side plate (111) is greater than that of the first heat sink (112), and the height of the second side plate (131) is greater than that of the second heat sink (132), so that a cavity for accommodating electrical components is formed between the first side plate (111) and the second side plate (131).

5. The radiator according to claim 3, characterized in that, The first heat sink (112), the second heat sink (132), and the second support (120) have the same cross-section.

6. The radiator according to any one of claims 1-5, characterized in that, The first support (110), the second support (120) and the third support (130) are all integrally formed parts.

7. The radiator according to any one of claims 1-5, characterized in that, The blower (200) includes a fan (220), which is respectively disposed on the first support (110), the second support (120) and the third support (130) to allow air to flow in the channel.

8. The radiator according to claim 4, characterized in that, It also includes a front ventilation panel (300) with ventilation mesh holes, and the front ventilation panel (300) is located on the side of the channel away from the blower (200).

9. The radiator according to claim 8, characterized in that, It also includes a cover plate (400) and a sealing plate (500). The sealing plate (500) is disposed on the blower (200) and connected to the first side plate (111) and the second side plate (131) respectively. The front ventilation plate (300), the first side plate (111), the second side plate (131) and the sealing plate (500) surround to form the cavity. The cover plate (400) covers the first side plate (111) and the second side plate (131) to close the cavity. A sealing strip (600) is provided on the cover plate (400) to seal the cavity.

10. A charging pile, characterized in that, It includes a power module and a heat sink as described in any one of claims 1-9 disposed on the power module.

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