New energy charger with built-in cooling mechanism

By incorporating a built-in cooling mechanism, and utilizing components such as heat-conducting plates, S-shaped pipes, and fan impellers, combined with water-cooling and air-cooling systems, the design solves the problems of low heat dissipation efficiency and inconvenient maintenance of existing chargers. It achieves uniform cooling and convenient maintenance, thereby improving the stability and service life of the charger.

CN224224909UActive Publication Date: 2026-05-12FUJIAN WEIWEI ER TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUJIAN WEIWEI ER TECHNOLOGY CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing new energy chargers generate heat during operation, which is mainly cooled by air cooling or passive heat dissipation, and liquid cooling is inconvenient for maintenance.

Method used

采用内置降温机构,包括等距分布的导热片、S形管道结构、风叶轮和散热鳍片,结合水冷和主动风冷系统,实现均匀传导和持续降温,并设计为可拆卸结构以便于维护。

Benefits of technology

It achieves uniform and continuous cooling, avoids local overheating, improves the stability and service life of the charger, and facilitates quick maintenance and component replacement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224224909U_ABST
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Abstract

The utility model discloses a new energy charger with a built-in cooling mechanism, and relates to the technical field of chargers, the new energy charger comprises a box body, the top of the box body is detachably connected with a box cover, and the top of the box cover and the bottom of the box body are respectively provided with a heat dissipation structure; the bottom of the inner side of the box body is fixedly connected with heat-conducting fins which are distributed at equal intervals, the bottom of the box body is detachably connected with a sealing plate, and a pipeline structure which is distributed in an S shape is arranged between the box body and the sealing plate; a first open groove distributed in an S-shaped structure is formed in the bottom of the box body, and a second open groove distributed in an S-shaped structure is formed in the top of the sealing plate. According to the new energy charger with the built-in cooling mechanism, heat generated by internal electronic components is uniformly conducted to an S-shaped pipeline structure at the bottom of the box body through heat-conducting fins which are distributed at equal intervals, and continuous and balanced cooling is realized by combining the design of a bent and extended water cooling pipeline and circulating cooling of a vehicle water tank, so that a local overheating phenomenon is avoided; and stable operation of the charger is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of charger technology, specifically a new energy charger with a built-in cooling mechanism. Background Technology

[0002] New energy chargers typically refer to charging equipment used in new energy vehicles such as electric vehicles and hybrid vehicles. They are used to transfer electrical energy to the vehicle's battery to ensure the vehicle's range requirements. During operation, the charger will generate heat, which will affect its operating status.

[0003] To overcome the aforementioned shortcomings, Chinese patent (publication number: CN220220432U) discloses a new energy vehicle on-board charger, relating to the field of on-board charger technology. The charger includes a main body and a heat dissipation mechanism. A cover mechanism for assembly is installed at the upper center of the main body. The heat dissipation mechanism, used to assist in heat dissipation, is installed on the inner center of the cover mechanism. A cooling mechanism for rapid cooling is provided on the inner sidewall of the main body. The cover can be installed on the outside of the heat-conducting strip via mounting holes and screws. Through the blowing of the exhaust fan and the heat conduction of the heat-conducting strip, the heat generated during the operation of the main body can be quickly dissipated and cooled, thereby reducing temperature accumulation. The existing technology (publication number: CN220374315U) discloses a protective cover for the electrical assembly of a new energy vehicle charger. This cover includes a cover plate with a rectangular frame fixedly connected to its top. A heat dissipation vent is located inside the rectangular frame at the top of the cover plate. The rectangular frame contains four device cavities, each equipped with a telescopic component. A protective plate is positioned between the four telescopic components. A heat dissipation fan is mounted on both sides of the inner wall of the rectangular frame via a support frame. The output of the heat dissipation fan rotates a shaft, which in turn rotates a rotating plate. This rotation causes the through-holes on the rotating plate to rotate, thus distributing and dispersing the cold air blown in by the heat dissipation fan. This ensures that the cold air is evenly distributed to the electrical equipment inside the electrical assembly housing, preventing poor cooling of equipment far from the heat dissipation vents, thereby improving heat dissipation and extending the equipment's lifespan.

[0004] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation: chargers generate heat during use and need to be cooled. Existing chargers generally use air cooling or passive heat dissipation for cooling, and liquid cooling is inconvenient for maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide a new energy charger with a built-in cooling mechanism to solve the problems in the background art where existing chargers generally cool down by air cooling or passive heat dissipation, and are inconvenient to maintain when using liquid cooling.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a new energy charger with a built-in cooling mechanism, including a housing, a lid detachably connected to the top of the housing, and heat dissipation structures provided at the top of the lid and the bottom of the housing;

[0007] The bottom of the inner side of the box is fixedly connected with equidistantly distributed heat-conducting plates, and the bottom of the box is detachably connected with a sealing plate. An S-shaped pipe structure is provided between the box and the sealing plate.

[0008] Preferably, the bottom of the box body is provided with a first slot with an S-shaped structure, and the top of the sealing plate is provided with a second slot with an S-shaped structure, and the first slot and the sealing plate are spliced ​​together to form an S-shaped pipe structure.

[0009] Preferably, the pipe structure is equipped with connectors at both ends, and the connectors are connected to the water tank inside the vehicle.

[0010] Preferably, a groove is provided in the middle of the top of the cover, and annularly distributed heat dissipation fins are fixedly connected inside the groove.

[0011] Preferably, a fan impeller is rotatably connected to the center of the groove at the top of the cover, and the fan impeller is driven by a motor and is located in the center of the heat dissipation fins of the annular structure.

[0012] Preferably, the side of the box cover is provided with equally spaced mounting holes, and the inside of the box is fixedly connected with equally spaced connecting seats. The mounting holes are slidably connected with bolts extending into the inside of the connecting seats.

[0013] Preferably, the housing is fixedly connected with studs arranged in a matrix structure, and the electronic components inside the housing are mounted on the top of the studs. Fixing lugs are fixedly connected to both sides of the housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This new energy charger with a built-in cooling mechanism uses evenly distributed heat-conducting plates to uniformly conduct the heat generated by the internal electronic components to the S-shaped pipe structure at the bottom of the casing. Combined with the design of curved and extended water-cooling pipes and the vehicle's water tank circulation cooling, it achieves continuous and balanced cooling, avoids local overheating, and ensures stable operation of the charger.

[0016] The fan impeller and heat dissipation fins on the top of the cover form an active air cooling system, which helps to improve the overall heat dissipation efficiency. In addition, the cover, sealing plate, heat conduction plate and other components are all designed to be detachable, which facilitates quick maintenance, cleaning and replacement, and improves the service life and reliability of the system. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the heat dissipation fin structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the box structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the slotted structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the sealing plate structure of this utility model.

[0023] In the diagram: 1. Box body; 2. Box cover; 3. Heat-conducting plate; 4. First slot; 5. Sealing plate; 6. Second slot; 7. Connector; 8. Heat dissipation fins; 9. Fan impeller; 10. Mounting hole; 11. Connecting seat; 12. Bolt; 13. Stud; 14. Fixing lug. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides the following technical solution: a new energy charger with a built-in cooling mechanism, including a housing 1, a cover 2 detachably connected to the top of the housing 1, and heat dissipation structures provided at the top of the cover 2 and the bottom of the housing 1; heat-conducting plates 3 are fixedly connected to the bottom inner side of the housing 1 at equal intervals, and a sealing plate 5 is detachably connected to the bottom of the housing 1; an S-shaped pipe structure is provided between the housing 1 and the sealing plate 5; a first slot 4 with an S-shaped structure is provided at the bottom of the housing 1, and a second slot 6 with an S-shaped structure is provided at the top of the sealing plate 5; the first slot 4 and the sealing plate 5 are spliced ​​together to form an S-shaped pipe structure; connectors 7 are installed at both ends of the pipe structure, and the connectors 7 are connected to the vehicle interior. The water tank is connected; a groove is provided in the middle of the top of the cover 2, and a ring of equally spaced heat dissipation fins 8 are fixedly connected inside the groove; a fan wheel 9 is rotatably connected in the middle of the groove on the top of the cover 2, and the fan wheel 9 is driven by a motor and is located in the middle of the ring-shaped heat dissipation fins 8; the side of the cover 2 is provided with equally spaced mounting holes 10, and the inner side of the box body 1 is fixedly connected with equally spaced connecting seats 11. The mounting holes 10 are slidably connected to bolts 12 extending into the inner side of the connecting seats 11; a matrix structure of studs 13 is fixedly connected inside the box body 1, and the electronic components inside the box body 1 are installed on the top of the studs 13. Fixing ears 14 are fixedly connected on both sides of the box body 1.

[0026] The heat-conducting plate 3 at the bottom of the box 1 contacts the internal electronic components, and conducts the heat generated by the charger during operation to the S-shaped pipe structure at the bottom of the box. The pipe is formed by splicing the first S-shaped slot 4 at the bottom of the box and the second slot 6 of the sealing plate 5. It is connected to the vehicle's water tank through the two end connectors 7, so that the coolant circulates in the pipe.

[0027] The heat-conducting plate 3 and the pipes are located on the inner and outer sides of the bottom of the housing 1, respectively. Therefore, the heat generated by the electronic components at the bottom of the housing 1 will be transferred to the pipe structure for heat dissipation through the heat-conducting plate 3. The heat dissipation fins 8 on the top of the housing cover 2 and the fan impeller 9 constitute an active cooling system. The fan impeller 9, driven by the motor, rotates. At this time, the fan impeller 9 draws air in from the middle and then discharges it through the outside of the fan impeller 9, causing the air to flow faster between the heat dissipation fins 8, quickly dissipating the heat accumulated on the heat dissipation fins 8, thus cooling the housing cover 2.

[0028] When the coolant flows in the S-shaped pipe, the tortuous design of the pipe extends the heat exchange time. Combined with the vehicle's water tank's circulating cooling system, continuous cooling is achieved. The equidistant distribution of the heat-conducting fins 3 ensures that heat is evenly conducted to the pipe contact surface, avoiding local overheating. Furthermore, the placement of the heat-conducting fins 3 increases the contact area between the bottom of the housing 1 and its internal space. When the ambient temperature is high, the forced heat dissipation of the fan impeller 9 can help improve the overall heat dissipation efficiency.

[0029] The enclosure 1 is connected to the external bracket via the fixing lugs 14. The matrix distribution of the internal studs 13 provides a stable mounting platform for electronic components. The cover 2 can be quickly disassembled and assembled via the mounting holes 10 and the bolts 12 of the connecting seat 11, which facilitates the maintenance of the heat dissipation system or the replacement of the heat conduction plate 3. The removable design of the sealing plate 5 makes it easy to clean the pipe deposits and ensure the efficiency of coolant flow.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A new energy charger with a built-in cooling mechanism, comprising a housing (1), wherein a cover (2) is detachably connected to the top of the housing (1), and both the top of the cover (2) and the bottom of the housing (1) are provided with heat dissipation structures; characterized in that The bottom of the inner side of the box (1) is fixedly connected with heat-conducting plates (3) that are evenly distributed, and the bottom of the box (1) is detachably connected with a sealing plate (5). An S-shaped pipe structure is provided between the box (1) and the sealing plate (5).

2. A new energy charger with a built-in cooling mechanism according to claim 1, characterized in that: The bottom of the box (1) is provided with a first slot (4) with an S-shaped structure, and the top of the sealing plate (5) is provided with a second slot (6) with an S-shaped structure. The first slot (4) and the sealing plate (5) are spliced ​​together to form an S-shaped pipe structure.

3. A new energy charger with a built-in cooling mechanism according to claim 2, characterized in that: Both ends of the pipe structure are equipped with connectors (7), and the connectors (7) are connected to the water tank inside the vehicle.

4. A new energy charger with a built-in cooling mechanism according to claim 3, characterized in that: The top center of the cover (2) is provided with a groove, and the groove is fixedly connected with annularly distributed heat dissipation fins (8).

5. A new energy charger with a built-in cooling mechanism according to claim 4, characterized in that: The top groove of the cover (2) is rotatably connected to a fan impeller (9), which is driven by a motor and is located in the middle of the heat dissipation fins (8) of the annular structure.

6. A new energy charger with a built-in cooling mechanism according to claim 5, characterized in that: The box cover (2) has equidistantly distributed mounting holes (10) on its side, and the box body (1) is fixedly connected to equidistantly distributed connecting seats (11). The mounting holes (10) are slidably connected to bolts (12) extending into the connecting seats (11).

7. A new energy charger with a built-in cooling mechanism according to claim 6, characterized in that: The box (1) is fixedly connected with studs (13) arranged in a matrix structure, and the electronic components inside the box (1) are installed on the top of the studs (13). The box (1) is fixedly connected with fixing ears (14) on both sides.