Natural heat dissipation charging pile module radiator

Abstract

The utility model provides a natural heat dissipation charging pile module radiator, which comprises a heat absorption surface for installing a charging pile module, the back surface of the heat absorption surface is a heat dissipation surface, and heat dissipation teeth are uniformly distributed on the heat dissipation surface; the heat absorption surface is further provided with a coil groove for containing a heating coil on the charging pile module, a PCB welded with the coil in the charging pile module covers a coil groove opening, the coil is contained in a sealed space defined by the PCB welded with the coil and the coil groove, and a gap is filled with guide liquid. According to the utility model, devices with high heat productivity, such as an inductance coil and a transformer coil, can be placed in the coil groove and soaked in the heat conduction oil, and heat is quickly brought to the groove wall by utilizing convection of the heat conduction oil, so that the heat dissipation effect is better.

Description

Technical Field

[0001] The utility model relates to a natural heat dissipation charging pile module radiator. Background Art

[0002] The charging pile module is the charging module of a DC charging pile. It converts AC power from the AC grid into DC power that can charge the power battery. It is the core component of a DC charging pile that charges the power battery. Traditional charging modules mainly consist of four parts: an input filter, a power factor correction circuit, a DC converter circuit, and an output filter.

[0003] Because the charging module for charging a car has high power, it requires a radiator to operate properly. Patent document CN113071351 A discloses a radiator for a charging pile device, comprising a sealed box, heat-absorbing teeth, heat-dissipating teeth, and a heat-conducting substrate mounted on the sealed box. The heat-absorbing teeth are located inside the sealed box, while the heat-dissipating teeth are located outside the sealed box. An external fan is used to blow air to the heat-dissipating teeth, and the heat-conducting substrate is used to transfer heat from the heat-absorbing teeth to the heat-dissipating teeth. During use, the heating element is installed in the sealed box. The hot air in the sealed cavity flows through the heat-absorbing teeth, transferring heat to the heat-absorbing teeth through a strong convection heat transfer process. The heat-absorbing teeth then transfer the heat to the heat-dissipating teeth through the heat conduction heat transfer process of the heat-conducting substrate, ultimately achieving heat dissipation in the sealed cavity. This heat dissipation device, by arranging heat-absorbing teeth capable of transferring heat to the heat-conducting substrate within the sealed box, further transfers the heat within the sealed box to the heat-dissipating teeth via the heat-conducting substrate as quickly as possible. The installation position of the heating element is not affected by the specific structure of the radiator, thereby improving the versatility of the radiator. However, in this type of radiator, when the heat absorbing teeth absorb the heat in the sealed box and transfer it to the heat dissipating teeth through the heat-conducting substrate, a strong convection heat transfer process is required inside the sealed box to transfer the heat to the heat absorbing teeth. Outside the sealed box, a strong convection heat transfer process is also required to cool the heat dissipating teeth. A large amount of energy is consumed in the heat dissipation process. Utility Model Content

[0004] The utility model aims to solve the problem that the radiator of the current charging pile module needs to consume more energy to achieve a better heat dissipation effect, and provides a natural heat dissipation charging pile module radiator.

[0005] The technical solution adopted by the utility model to achieve its technical purpose is: a natural heat dissipation charging pile module radiator, comprising a heat absorbing surface for mounting the charging pile module, a heat dissipation surface (1) on the back of the heat absorbing surface, and heat dissipation teeth evenly distributed on the heat dissipation surface; a coil slot for accommodating a heating coil on the charging pile module is further provided on the heat absorbing surface, a PCB board with a coil welded thereon in the charging pile module covers the coil slot, the coil is accommodated in a sealed space enclosed by the PCB board with the coil welded thereon and the coil slot, and the gap is filled with a guide liquid.

[0006] Furthermore, in the above-mentioned natural heat dissipation charging pile module radiator: screw holes for fixing the power device with screws are also provided on the heat absorption surface.

[0007] Furthermore, in the above-mentioned natural heat dissipation charging pile module radiator: the coil slot includes two parallel grooves, one of which is provided with an inductor coil, and the other is provided with a transformer coil.

[0008] Furthermore, in the above-mentioned natural heat dissipation charging pile module radiator: heat dissipation teeth are vertically arranged on the outer wall of the coil slot.

[0009] Furthermore, in the above-mentioned natural heat dissipation charging pile module radiator: when the radiator is installed, the heat dissipation teeth are perpendicular to the ground.

[0010] In the utility model, components with high heat generation, such as inductor coils and transformer coils, can be placed in the coil slot and immersed in heat-conducting oil. The heat can be quickly brought to the slot wall by convection of the heat-conducting oil, thereby achieving better heat dissipation effect.

[0011] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attachment Figure 1 This is a three-dimensional diagram of a radiator according to an embodiment of the present utility model;

[0013] Attachment Figure 2 This is a front view of one side of the heat dissipation teeth of the radiator according to the embodiment of the utility model;

[0014] Attachment Figure 3 This is a rear view of the heat absorbing surface of the radiator according to the embodiment of the present utility model;

[0015] Attachment Figure 4 This is a top view of a side view of the radiator according to an embodiment of the present invention. DETAILED DESCRIPTION

[0016] Example 1, as Figure 1 、 2As shown in Figures 3 and 4, this embodiment is a natural heat dissipation charging pile module radiator, which is vertically installed in the charging pile and is punched into a square shape with a piece of aluminum alloy profile. It has two surfaces, front and back, one side is a heat dissipation surface 2, and the other side is a heat absorption surface 1. The heat absorption surface 2 is installed on the charging pile module to absorb the heat generated by the charging pile module, and the heat is conducted to the heat dissipation surface 1 on the back by the aluminum alloy with strong thermal conductivity. On the heat dissipation surface 1, the heat is dissipated into the air by the heat dissipation teeth 110 evenly distributed on the heat dissipation surface 1; in this embodiment, a coil slot 210 for accommodating the heating coil on the charging pile module is also provided on the heat absorption surface 2, and the PCB board with the coil welded in the charging pile module covers the mouth of the coil slot 210, and the coil is accommodated in a sealed space surrounded by the PCB board with the coil welded and the coil slot 210, and the gap is filled with heat transfer liquid. In this embodiment, in the charging pile module, the coils mainly include inductor coils and transformer coils, both of which are high-heat devices. Because these coils have a certain resistance, they also generate a lot of heat when the current is trapped. Normally, these coils are exposed to the air, and the heat on the coils is taken away by air convection. This may not meet the requirements. In this embodiment, two parallel coil slots 210 are used, one with a slightly smaller width and the other with a slightly wider width. The slightly wider coil slot 210 is used to set the transformer, and the slightly narrower coil slot 210 is used to set the inductor coil. In this embodiment, the transformer and inductor in the charging pile module are relatively concentrated. According to the heat dissipation situation, all transformers are set in a long On the square PCB, this rectangular PCB just covers the notch of the slightly wider coil slot 210, and the transformer on it extends into the slot through the notch of the coil slot 210, using the PCB to seal the notch. Similarly, all inductors can be soldered to another narrower PCB board. This narrower PCB can also be sealed and covered on the narrower coil slot 210, and the inductor coil is inserted into the coil slot 210. In this way, both coil slots 210 use PCB board sealing notches, which can be filled with liquids with good thermal conductivity, such as thermal oil, thermal adhesive, etc. These are all good thermal conductors and insulators. It is safe for transformers or power plant coils to be immersed in them. In this embodiment, the charging pile module is vertically installed in the charging pile box, and heat dissipation teeth 110 are evenly distributed on the back of the radiator. These heat dissipation teeth 110 are arranged vertically. In this way, due to the heat dissipation around the heat dissipation teeth 110, the air temperature around the radiator, especially on both sides of the heat dissipation teeth 110, will be relatively high. At this time, the air expands when heated, and the specific gravity decreases, and it will flow upward along the vertical heat dissipation teeth 110. At this time, the cold air below is continuously replenished. In this way, the cold fresh air is continuously replenished around the heat dissipation teeth 110, so that the radiator can dissipate heat naturally.

[0017] In some other embodiments, the shape and number of the coil slots 210 on the front of the radiator are uniformly considered according to the situation of the electronic circuit on the module. On the back of the radiator, the groove wall of the coil slot 210 can also be provided with heat dissipation teeth 110, such as Figure 4 As shown, the heat dissipation teeth 110 are perpendicular to the slot wall. At the bottom of the coil slot 210, the heat dissipation teeth 110 are also vertically arranged as usual. Heat dissipation teeth perpendicular to the slot wall can be arranged on the other four surfaces of the coil slot 210.

[0018] In this embodiment, compared to other heat sinks, the heat absorbing surface 2 is also a flat surface that can be fully integrated with the PCB. Besides the coil slots 210, screw holes 220 are provided elsewhere on the heat absorbing surface. These screw holes 220 are used to secure power devices, such as MOS transistors, which generate a lot of heat. Screw holes 220 are also provided for securing power devices. Power devices are bolted to this heat absorbing surface using screws.

Claims

1. A natural heat dissipation charging pile module radiator, comprising a heat absorbing surface (2) for mounting the charging pile module, a heat dissipation surface (1) on the back side of the heat absorbing surface (2), and heat dissipation teeth (110) uniformly distributed on the heat dissipation surface (1); characterized in that: The heat absorbing surface (2) is further provided with a coil slot (210) for accommodating a heating coil on a charging pile module; a PCB board on which a coil is welded in the charging pile module covers an opening of the coil slot (210); the coil is accommodated in a sealed space enclosed by the PCB board on which the coil is welded and the coil slot (210); and the gap is filled with heat-conducting liquid.

2. The natural heat dissipation charging pile module radiator according to claim 1 is characterized by: The heat absorbing surface (2) is also provided with screw holes (220) for fixing the heat dissipation device with screws.

3. The natural heat dissipation charging pile module radiator according to claim 1 is characterized in that: The coil slot (210) comprises two parallel grooves, wherein an inductor coil is arranged in one groove and a transformer coil is arranged in the other groove.

4. The natural heat dissipation charging pile module radiator according to claim 3 is characterized by: Heat dissipation teeth (110) are vertically arranged on the outer wall of the coil slot (210).

5. The natural heat dissipation charging pile module radiator according to any one of claims 1 to 4, characterized in that: When the radiator is installed, the heat dissipation teeth (110) are perpendicular to the ground.

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