Charger

Abstract

The utility model discloses a charger which comprises an outer shell, and a waterproof space and a ventilation space are respectively formed in the outer shell. The charger further comprises a heating assembly, a cooling plate, a radiator, a circulating pump and a cooling fan. The heating assembly and the cooling plate are arranged in the waterproof space, and the heating assembly is attached to the cooling plate; a water outlet of the circulating pump is communicated with a runner inlet of the cooling plate through a first guide pipe; a runner outlet of the cooling plate is communicated with a runner inlet of the radiator through a second guide pipe; a runner outlet of the radiator is communicated with a water inlet of the circulating pump through a third guide pipe; the circulating pump is used for driving the liquid working medium in the cooling plate runner to flow; the radiator and the cooling fan are arranged in the ventilation space, the radiator is provided with an airflow channel, and the cooling fan is arranged close to the airflow channel and used for cooling of the radiator. According to the technical scheme of the utility model, the waterproof performance and the heat dissipation performance of the charger are ensured at the same time, so that the reliability of the charger is improved, and the charger can adapt to a severe outdoor environment.

Description

Technical Field

[0001] This utility model relates to the field of charging device technology, and in particular to a charger. Background Technology

[0002] In modern electric equipment, DC chargers are important charging devices and are widely used in various charging stations. Furthermore, with the continuous development of charging technology, the performance requirements for chargers are also increasing, with waterproofing and heat dissipation being two key factors considered in charger product design.

[0003] Specifically, chargers used outdoors require strong waterproof capabilities to ensure normal operation under various harsh weather conditions. However, the charger's heat dissipation performance is equally crucial, especially in high-power DC chargers. Efficient heat dissipation design can prevent overheating and ensure safe and stable operation. However, current technologies commonly use a combination of heat sinks and cooling fans to achieve air convection cooling, but these methods are easily limited by the waterproof design in practical applications. Specifically, while ensuring waterproof and dustproof performance, existing technologies may compromise heat dissipation, leading to excessively high charger operating temperatures, affecting its lifespan and reliability. Utility Model Content

[0004] The purpose of this invention is to provide a charger that simultaneously ensures the charger's waterproof and heat dissipation performance, thereby improving the charger's reliability and adapting it to harsh outdoor environments.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A charger includes a housing, the housing having a waterproof space and a ventilation space; the charger also includes a heating element, a cooling plate, a radiator, a circulation pump, and a cooling fan;

[0007] The heating element and the cooling plate are disposed in the waterproof space, with the heating element and the cooling plate being fitted together. The outlet of the circulating pump is connected to the inlet of the cooling plate's flow channel via a first conduit. The outlet of the cooling plate's flow channel is connected to the inlet of the radiator's flow channel via a second conduit. The outlet of the radiator's flow channel is connected to the inlet of the circulating pump via a third conduit. The circulating pump is used to drive the flow of the liquid working fluid within the cooling plate's flow channel. The radiator and the cooling fan are disposed in the ventilation space. The radiator has an airflow channel, and the cooling fan is disposed close to the airflow channel for heat dissipation of the radiator.

[0008] In one embodiment, the heating component includes a first heating element and a second heating element distributed at different locations; the first heating element is attached to the cooling plate.

[0009] The charger also includes a first heat-conducting plate and a second heat-conducting plate.

[0010] The first heat-conducting plate is attached to the cooling plate, and a heat pipe is connected to the first heat-conducting plate. The heat pipe is attached to the second heat-conducting plate. The second heat-conducting plate is attached to the second heating device.

[0011] In one embodiment, the cooling plate and / or the heat sink is made of aluminum or copper.

[0012] The first heat-conducting plate and / or the second heat-conducting plate are made of copper.

[0013] In one embodiment, the circulating pump is a water pump, and the water pump is connected to a water tank.

[0014] In one embodiment, the cooling fan is a waterproof fan.

[0015] In one embodiment, the waterproof space is superimposed on the ventilation space, and the ventilation space is located below the waterproof space.

[0016] In one embodiment, the waterproof space is enclosed by the outer shell and the cover, which are connected by a sealing gasket or sealant; and the first conduit and the second conduit are both sealed to the outer shell.

[0017] In one embodiment, the ventilation space has an air inlet and an air outlet, and the cooling fan is located near the air outlet; and the air inlet and the air outlet are respectively located on both sides of the airflow channel of the radiator.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The charger's outer casing is designed with two independent spaces: a waterproof space and a ventilation space. The waterproof space primarily protects the heating elements and cooling plate, ensuring they are protected from external moisture and dust, thus effectively improving the charger's waterproof performance in harsh outdoor environments. The ventilation space, used to house the radiator and cooling fan, allows for efficient heat dissipation through both natural ventilation and forced ventilation from the cooling fan, without compromising the waterproof space's seal.

[0020] Furthermore, the cooling plate, radiator, and circulating pump in this utility model's technical solution constitute a closed-loop cooling system. Specifically, the cooling plate is positioned close to the heating element and collects the heat generated by the heating element, causing the low-temperature liquid working medium in the first conduit to be converted into a high-temperature liquid working medium. The high-temperature liquid working medium flows to the radiator through the second conduit, and the radiator dissipates heat through natural ventilation and a cooling fan, thereby reducing the temperature of the heat dissipation medium in the third conduit and achieving sufficient heat dissipation for the heating element.

[0021] The heating element and cooling plate are placed in a waterproof space to prevent damage from moisture and external water spray. The radiator and cooling fan are placed in a ventilated space, utilizing airflow for heat dissipation. Their heat dissipation design is not limited by the waterproof design. Therefore, this invention simultaneously ensures the charger's waterproof and heat dissipation performance, thereby improving the charger's reliability and adaptability to harsh outdoor environments. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Figure 1 This is a structural diagram of an embodiment of the charger of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of an embodiment of the charger of this utility model;

[0026] Figure 3 This is a schematic diagram of one embodiment of the charger of this utility model;

[0027] Figure 4 This is a schematic diagram of another embodiment of the charger of this utility model;

[0028] Illustration: 100, Charger;

[0029] 110. Outer shell; 110a. Waterproof space; 112. Cover; 110b. Ventilation space; 113. Air inlet; 114. Air outlet;

[0030] 120. Heating component; 121. First heating element; 122. Second heating element;

[0031] 130. Cooling plate; 140. Radiator; 140a. Airflow channel;

[0032] 150. Circulating pump; 160. Cooling fan;

[0033] 171. First catheter; 172. Second catheter; 173. Third catheter;

[0034] 180. First heat-conducting plate; 181. Heat pipe;

[0035] 190. Second heat-conducting plate. Detailed Implementation

[0036] To make the technical objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are 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. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0038] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] This utility model embodiment provides a charger 100.

[0040] Please see Figures 1 to 4The charger 100 includes a housing 110, which has a waterproof space 110a and a ventilation space 110b. The charger 100 also includes a heating element 120, a cooling plate 130, a radiator 140, a circulation pump 150, and a cooling fan 160.

[0041] The heating element 120 and the cooling plate 130 are disposed in the waterproof space 110a, with the heating element 120 and the cooling plate 130 in close contact. The outlet of the circulating pump 150 is connected to the inlet of the flow channel of the cooling plate 130 through a first conduit 171. The outlet of the flow channel of the cooling plate 130 is connected to the inlet of the flow channel of the radiator 140 through a second conduit 172. The outlet of the flow channel of the radiator 140 is connected to the inlet of the circulating pump 150 through a third conduit 173. The circulating pump 150 is used to drive the flow of the liquid working fluid in the flow channel of the cooling plate 130. The radiator 140 and the cooling fan 160 are disposed in the ventilation space 110b. The radiator 140 has an airflow channel 140a, and the cooling fan 160 is disposed close to the airflow channel 140a for heat dissipation of the radiator 140.

[0042] It is understood that the outer casing 110 of the charger 100 in this utility model is designed as two independent spaces: a waterproof space 110a and a ventilation space 110b. The waterproof space 110a is mainly used to protect the heating element 120 and the cooling plate 130, ensuring that they are not exposed to external moisture and dust, thereby effectively improving the waterproof performance of the charger 100 in harsh outdoor environments. By providing the ventilation space 110b, which is used to install the radiator 140 and the cooling fan 160, the ventilation space 110b can make full use of natural ventilation and the forced ventilation of the cooling fan 160 for heat dissipation without affecting the sealing of the waterproof space 110a.

[0043] Furthermore, the arrangement of the cooling plate 130, radiator 140, and circulating pump 150 in this utility model's technical solution constitutes a closed-loop cooling system. Specifically, the cooling plate 130 is positioned close to the heating element 120 and is used to collect the heat generated by the heating element 120, thereby converting the low-temperature liquid working medium in the first conduit 171 into a high-temperature liquid working medium. The high-temperature liquid working medium flows to the radiator 140 through the second conduit 172, and the radiator 140 dissipates heat through natural ventilation and the cooling fan 160, thereby reducing the temperature of the heat dissipation medium in the third conduit 173 and achieving sufficient heat dissipation for the heating element 120.

[0044] The heating element 120 and cooling plate 130 are placed in the waterproof space 110a to prevent moisture and external water spray from damaging the heating element 120. The radiator 140 and cooling fan 160 are placed in the ventilation space 110b, using airflow for heat dissipation. Their heat dissipation design is not limited by the waterproof design. Therefore, the present invention simultaneously ensures the waterproof performance and heat dissipation performance of the charger 100, thereby improving the reliability of the charger 100 to adapt to harsh outdoor environments.

[0045] It should also be explained that the contact position described in this utility model is mainly for achieving high-efficiency heat conduction. Specifically, to further improve heat conduction efficiency and contact reliability, the heating component 120 and the cooling plate 130 are connected by thermally conductive silicone grease and / or thermally conductive ceramic sheets.

[0046] Specifically, the liquid working medium in the cooling system can be pure water, an aqueous solution of ethanol, or an aqueous solution of ethylene glycol, etc.

[0047] In a specific embodiment, the circulating pump 150 is a water pump, and the water pump is connected to a water tank. The water tank is used to provide a liquid working fluid reserve to ensure the stable operation of the equipment over a long period of time.

[0048] It should also be noted that, in order to improve the stability of the system, a control device is also provided in the cooling system, which consists of the cooling plate 130, the radiator 140 and the circulating pump 150 forming a closed loop. The control device is connected to the second conduit 172.

[0049] Furthermore, such as Figure 1 and Figure 4 As shown, the control device is integrated with the circulating pump 150.

[0050] Please see Figures 1 to 4 In a preferred embodiment of the present invention, the heating component 120 includes a first heating element 121 and a second heating element 122 distributed at different positions; the first heating element 121 is attached to the cooling plate 130.

[0051] The charger 100 also includes a first heat-conducting plate 180 and a second heat-conducting plate 190.

[0052] The first heat-conducting plate 180 is attached to the cooling plate 130, and the first heat-conducting plate 180 is connected to a heat pipe 181. The heat pipe 181 is attached to the second heat-conducting plate 190. The second heat-conducting plate 190 is attached to the second heating device 122.

[0053] It can be explained that the heat generated by the first heating element 121 during operation is greater than the heat generated by the second heating element 122 during operation. Correspondingly, attaching the first heating element 121 to the cooling plate 130 can improve heat conduction efficiency and reduce the risk of equipment damage. Furthermore, the placement of the first heat-conducting plate 180 and the second heat-conducting plate 190 ensures that the second heating element 122, which is located away from the cooling plate 130, can also effectively dissipate heat. It can also be understood that the placement of the first heat-conducting plate 180 and the second heat-conducting plate 190 increases the flexibility of the position of the second heating element 122.

[0054] Another explanation is that the first heating device 121 is an integrated circuit component; the second heating device 122 is a passive component, such as a resistor, inductor, capacitor, transformer, etc.

[0055] In one embodiment, the cooling plate 130 and the heat sink 140 are made of aluminum or copper.

[0056] Preferably, in order to reduce the material cost and weight of the charger 100, the cooling plate 130 and the heat sink 140 are made of aluminum.

[0057] In one embodiment, to improve heat transfer efficiency, the first heat-conducting plate 180 and the second heat-conducting plate 190 are made of copper.

[0058] Specifically, in the heat pipe system composed of the first heat-conducting plate 180, the second heat-conducting plate 190, and the heat pipe 181, the second heat-conducting plate 190 actively absorbs the heat from the second heating device 122, making the second heat-conducting plate 190 the heat source end of the heat pipe system. The heat pipe 181 absorbs the heat from the second heat-conducting plate 190, causing the liquid working fluid inside the heat pipe 181 to move towards the first heat-conducting plate 180. The cooling plate 130 can absorb the heat from the first heat-conducting plate 180, making the first heat-conducting plate 180 the low-temperature end of the heat pipe system. During the heat dissipation process of the first heat-conducting plate 180, the liquid working fluid inside the heat pipe 181 can flow back to the heat source end through the capillary structure in the heat pipe 181, thereby completing the circulation of the heat pipe 181.

[0059] Furthermore, the cooling fan 160 is a waterproof fan to ensure that the cooling fan 160 operating in the ventilation space 110b will not be damaged by moisture intrusion, thereby improving the reliability of the equipment in a humid environment.

[0060] Furthermore, the waterproof space 110a and the ventilation space 110b are stacked, with the ventilation space 110b located below the waterproof space 110a. This can be explained by the fact that hot air rises naturally, while cold air enters from below, which helps improve heat dissipation efficiency.

[0061] Furthermore, the waterproof space 110a is formed by the outer shell 110 and the cover 112, which are connected by a sealing gasket or sealant; and the first conduit 171 and the second conduit 172 are both sealed to the outer shell 110. This ensures a waterproof effect.

[0062] Furthermore, the ventilation space 110b is provided with an air inlet 113 and an air outlet 114, and the cooling fan 160 is located near the air outlet 114; and the air inlet 113 and the air outlet 114 are respectively located on both sides of the airflow channel 140a of the radiator 140, thereby ensuring that air can flow fully through the radiator 140 and improving the heat dissipation efficiency.

[0063] It should also be noted that the design of the charger 100 of this utility model enables the charger 100 to achieve a waterproof rating of IP68.

[0064] Furthermore, the cooling fan 160 can be a DC fan, an AC fan, or an EC fan. In practical applications, the power of the cooling fan 160 can be selected according to the cooling requirements.

[0065] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A charger, characterized in that, The charger includes an outer casing, which has a waterproof space and a ventilation space; the charger also includes a heating element, a cooling plate, a radiator, a circulation pump, and a cooling fan. The heating element and the cooling plate are disposed in the waterproof space, with the heating element and the cooling plate being fitted together. The outlet of the circulating pump is connected to the inlet of the cooling plate's flow channel via a first conduit. The outlet of the cooling plate's flow channel is connected to the inlet of the radiator's flow channel via a second conduit. The outlet of the radiator's flow channel is connected to the inlet of the circulating pump via a third conduit. The circulating pump is used to drive the flow of the liquid working fluid within the cooling plate's flow channel. The radiator and the cooling fan are disposed in the ventilation space. The radiator has an airflow channel, and the cooling fan is disposed close to the airflow channel for heat dissipation of the radiator.

2. The charger according to claim 1, characterized in that, The heating component includes a first heating element and a second heating element distributed at different locations; the first heating element is attached to the cooling plate. The charger also includes a first heat-conducting plate and a second heat-conducting plate. The first heat-conducting plate is attached to the cooling plate, and a heat pipe is connected to the first heat-conducting plate. The heat pipe is attached to the second heat-conducting plate. The second heat-conducting plate is attached to the second heating device.

3. The charger according to claim 2, characterized in that, The cooling plate and / or the radiator are made of aluminum or copper. The first heat-conducting plate and / or the second heat-conducting plate are made of copper.

4. The charger according to claim 3, characterized in that, The circulating pump is a water pump, and the water pump is connected to a water tank.

5. The charger according to claim 1, characterized in that, The cooling fan is a waterproof fan.

6. The charger according to any one of claims 1 to 5, characterized in that, The waterproof space and the ventilation space are stacked, and the ventilation space is located below the waterproof space.

7. The charger according to claim 6, characterized in that, The waterproof space is enclosed by the outer shell and the cover, which are connected by a sealing gasket or sealant; and the first conduit and the second conduit are both sealed to the outer shell.

8. The charger according to claim 7, characterized in that, The ventilation space has an air inlet and an air outlet, and the cooling fan is located near the air outlet; the air inlet and the air outlet are respectively located on both sides of the airflow channel of the radiator.

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