Air-cooled charging gun base

Abstract

The utility model discloses an air-cooled charging gun seat, which comprises a cabin, a charging socket terminal assembly extending into the cabin is arranged on the upper surface of the cabin, and the charging socket terminal assembly comprises a mounting plate mounted on the upper surface of the cabin. A mounting plate is arranged in the cabin, a plurality of charging socket terminals extending into the cabin are arranged on the mounting plate, a connecting plate connected with a charging socket terminal assembly is arranged at the bottom of the cabin, a power transmission line is arranged at the bottom of the connecting plate, and a fan assembly for cooling the interior of the cabin is arranged on the upper surface of the cabin. By installing the fan assembly on the cabin, active heat dissipation can be conducted on the charging socket terminal in the cabin in a targeted mode, compared with natural cooling, the heat dissipation efficiency is higher, and the charging safety is effectively improved; the charging socket terminal with the hollow structure is also beneficial to heat dissipation to a certain extent, and the design of the heat dissipation gap on the charging socket terminal increases the contact area between the charging socket terminal and air, so that heat can be dissipated more quickly, the working temperature of the charging socket terminal is reduced, and the reliability of the charging socket terminal is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive charging socket technology, and particularly relates to an air-cooled charging gun socket. Background Technology

[0002] With the widespread adoption of electric vehicles, the requirements for their charging infrastructure are constantly increasing. Among the many key components of charging infrastructure, the performance of the car charging interface (i.e., the charging gun socket) is crucial. Currently, car charging interfaces face numerous challenges in high-power charging scenarios. On the one hand, the charging socket terminal assembly generates heat during operation; if heat dissipation is not timely, heat accumulation can lead to safety risks. Most existing charging interfaces rely on natural cooling, but this method has low heat dissipation efficiency and is difficult to meet the heat dissipation requirements of high-power charging.

[0003] On the other hand, the existing heat dissipation structure design of charging interfaces has shortcomings. Although some heat dissipation designs have been improved, they still have many limitations. For example, the heat dissipation area of ​​some charging socket terminal assembly structures is limited, and the heat dissipation channels are not reasonable enough, making it difficult to effectively reduce the operating temperature of the charging socket terminals, thus affecting their reliability and service life. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing an air-cooled charging gun holder.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: an air-cooled charging gun holder, including a cabin, a charging socket terminal assembly extending into the cabin is provided on the upper surface of the cabin, the charging socket terminal assembly includes a mounting plate attached to the upper surface of the cabin, a plurality of charging socket terminals extending into the cabin are provided on the mounting plate, a connecting plate connected to the charging socket terminal assembly is provided at the bottom of the cabin, a power transmission line is provided at the bottom of the connecting plate, and a fan assembly for cooling the interior of the cabin is provided on the upper surface of the cabin.

[0006] In the above technical solution, by installing a fan assembly on the cockpit, the charging socket terminals inside the cockpit can be actively cooled. Compared with natural cooling, the heat dissipation efficiency is higher and the charging safety is effectively improved.

[0007] Optionally, the bottom of the cockpit is designed with an opening, and the upper surface of the cockpit has mounting holes for the charging socket terminal assembly. The upper surface of the cockpit and the sides of the charging socket terminal assembly have air inlets and exhaust outlets respectively. The air inlets allow the cool air from the fan assembly to enter the cockpit and then exit through the exhaust outlets, thus creating a forced airflow circulation channel. This facilitates air circulation, improves heat dissipation efficiency, and reduces the impact of heat generated by the charging socket terminal assembly during operation on the device performance.

[0008] Optionally, the charging socket terminal is a hollow, silver-plated copper rod. A longitudinal heat dissipation notch is provided on the surface of the charging socket terminal and on the portion below the mounting plate. The heat dissipation notch penetrates the side wall of the charging socket terminal. The charging socket terminal forms a current path with the power transmission line through a connecting plate.

[0009] In the above technical solution, the charging socket terminals are made of hollow, silver-plated copper rods. The hollow structure reduces the weight of the charging socket terminals and also facilitates heat dissipation to some extent. The silver plating improves the conductivity of the charging socket terminals, reduces power loss during transmission, and ensures charging efficiency. The heat dissipation notch design increases the contact area between the charging socket terminals and the air, allowing heat to dissipate more quickly, reducing the operating temperature of the charging socket terminals, and improving their reliability. Furthermore, the heat dissipation notch penetrates the sidewall of the charging socket terminals, ensuring more uniform heat dissipation. Simultaneously, the charging socket terminals, connecting plate, and power transmission lines form a good current path, ensuring stable power transmission.

[0010] Optionally, the heat dissipation notch includes a longitudinal notch and a transverse notch, both of which penetrate the charging socket terminal and are perpendicular to each other in the same plane.

[0011] In the above technical solution, the design of the vertical and horizontal notches being perpendicular to each other further optimizes the shape and distribution of the heat dissipation notches. This structure can increase the heat dissipation area of ​​the charging socket terminals in different directions, enabling the charging socket terminals to effectively dissipate heat in all directions. At the same time, the two notches are on the same plane, which facilitates airflow at the notches, forming a more effective heat dissipation channel, thereby better reducing the temperature of the charging socket terminals and improving their working performance and lifespan.

[0012] Optionally, the fan assembly includes a mounting frame attached to the outer periphery of the air inlet, a fan is mounted on the mounting frame, the top of the fan is the air inlet end, the air inlet end of the fan is provided with an air duct, the top of the air duct is provided with a filter box, the filter box is provided with a filter element, and the top of the filter box is provided with a flip-up cover.

[0013] In the above technical solution, the fan assembly mounting frame is attached to the outer periphery of the air intake, which can firmly fix the fan and ensure its stability during operation. The fan is designed to actively draw cool external air into the cabin, dissipating heat for components such as the charging socket terminal assembly. The air duct design guides the airflow direction, allowing air to enter the cabin more systematically and concentrating airflow to improve heat dissipation efficiency. The filter element inside the filter box filters impurities and dust from the incoming air, preventing these impurities from entering the cabin and affecting the normal operation of the charging socket terminal assembly and other components. The flip-up cover allows for easy cleaning of the filter box and replacement of the filter element, improving the maintenance convenience of the fan assembly.

[0014] Optionally, two fans are symmetrically arranged, each connected to the same filter box via an air duct. The filter box and the air duct are internally connected. The symmetrical arrangement of the two fans can provide a larger airflow, enhancing heat dissipation and allowing heat inside the cabin to be removed more quickly. Connecting the two fans to the filter box via the same air duct allows for more even airflow into the cabin, preventing localized poor heat dissipation, simplifying the air duct structure, and improving the overall performance and reliability of the equipment.

[0015] Optionally, the flip-up angle of the cover plate is between 0° and 270°. A large-angle flip can fully expose the inside of the filter box, which is convenient for thorough cleaning, allows external cold air to easily enter the filter box, and also makes it convenient to remove the filter element inside the filter box for cleaning later.

[0016] Optionally, the plurality of charging socket terminals include CC1 terminal, CC2 terminal, S+ terminal, S- terminal, A+ terminal, A- terminal, DC+ terminal, DC- terminal, and PE terminal. The fan is connected to the A+ terminal and A- terminal of the charging socket terminal assembly via connecting wires. The connecting wires are laid on the upper surface of the cockpit. The power required by the fan is directly supplied by the charging socket terminal assembly, eliminating the need for external power supply wiring, improving system integration. Laying the connecting wires on the upper surface of the cockpit can prevent the connecting wires from getting tangled inside the cockpit or interfering with other components, ensuring the cleanliness and orderliness of the cockpit interior space, and also facilitating the installation and maintenance of the connecting wires.

[0017] Optionally, the outer periphery of the cockpit is provided with an upward and outwardly expanding mounting cover, the height of which exceeds the portion of the charging socket terminal located on the mounting plate, thereby protecting the charging socket terminal assembly.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By installing a fan assembly on the cockpit, the charging socket terminals inside the cockpit can be actively cooled in a targeted manner. Compared with natural cooling, the heat dissipation efficiency is higher, effectively improving charging safety; 2. The hollow structure of the charging socket terminals also facilitates heat dissipation to a certain extent. The design of the heat dissipation notch on the charging socket terminals increases the contact area between the charging socket terminals and the air, allowing heat to dissipate more quickly, reducing the operating temperature of the charging socket terminals, improving their reliability. Furthermore, the heat dissipation notch penetrates the side wall of the charging socket terminals, ensuring a more uniform heat dissipation effect. At the same time, the charging socket terminals, connecting plates, and power transmission lines form a good current path, ensuring stable power transmission; 3. The design of the heat dissipation notch with the longitudinal and transverse notches perpendicular to each other further optimizes the shape and distribution of the heat dissipation notch. This increases the heat dissipation area of ​​the charging socket terminals in different directions, enabling the charging socket terminals to effectively dissipate heat in all directions. At the same time, the two notches are on the same plane, which is conducive to air flow at the notches, forming a more effective heat dissipation channel, thereby better reducing the temperature of the charging socket terminals and improving their working performance and lifespan. Attached Figure Description

[0019] Figure 1 This is a top-view three-dimensional schematic diagram of an air-cooled charging gun holder according to the present invention;

[0020] Figure 2 This is a three-dimensional top-view schematic diagram of an air-cooled charging gun holder according to the present invention;

[0021] Figure 3 This is a top view schematic diagram of an air-cooled charging gun holder according to the present invention;

[0022] Figure 4 This is a schematic diagram illustrating the assembly effect of the cockpit and battery cell of this utility model;

[0023] Figure 5 This is a schematic diagram illustrating the assembly effect of the cockpit, charging socket terminal assembly, and fan assembly of this utility model.

[0024] Figure 6 This is a cross-sectional view of the filter box of this utility model;

[0025] Figure 7 This is a schematic diagram of the battery cell of this utility model;

[0026] Figure 8 This is a bottom view of the charging socket terminals representing DC+ or DC- in this utility model.

[0027] In the diagram: 1. Cockpit; 11. Air intake; 12. Exhaust outlet; 2. Charging socket terminal assembly; 21. Mounting plate; 22. Charging socket terminal; 23. Heat dissipation notch; 23a. Longitudinal notch; 23b. Lateral notch; 3. Connecting plate; 4. Power transmission line; 5. Fan assembly; 51. Mounting frame; 52. Fan; 53. Air duct; 54. Filter box; 55. Filter element; 56. Flip cover; 6. Connecting wire; 7. Mounting cover. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.

[0029] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0030] like Figure 1 As shown in Figure 8, the specific solution of the embodiment is as follows: An air-cooled charging gun holder includes a cabin 1. A charging socket terminal assembly 2 extending into the cabin 1 is provided on the upper surface of the cabin 1. The charging socket terminal assembly 2 includes a mounting plate 21 attached to the upper surface of the cabin 1. A plurality of charging socket terminals 22 extending into the cabin 1 are provided on the mounting plate 21. A connecting plate 3 connected to the charging socket terminal assembly 2 is provided at the bottom of the cabin 1. A power transmission line 4 is provided at the bottom of the connecting plate 3. A fan assembly 5 for heat dissipation inside the cabin 1 is provided on the upper surface of the cabin 1.

[0031] In the above technical solution, by installing a fan assembly 5 on the cockpit 1, the charging socket terminal 22 inside the cockpit 1 can be actively cooled. Compared with natural cooling, the heat dissipation efficiency is higher and the charging safety is effectively improved.

[0032] In this embodiment, the charging socket terminal assembly is a DC charging interface. The number of charging socket terminals 22 in one charging socket terminal assembly 2 is designed according to the national standard 9-hole charging gun. Therefore, the number of charging socket terminals 22 is 9. The 9 charging socket terminals include CC1 terminal, CC2 terminal, S+ terminal, S- terminal, A+ terminal, A- terminal, DC+ terminal, DC- terminal and PE terminal, to adapt to the national standard-compliant charging guns on the market.

[0033] In this embodiment, the bottom of the cabin 1 is designed with an opening, and the upper surface of the cabin 1 is provided with mounting holes for the charging socket terminal assembly 2. The upper surface of the cabin 1 and the two sides of the charging socket terminal assembly 2 are respectively provided with an air inlet 11 and an exhaust outlet 12. The cool air from the fan assembly 5 is allowed to enter the cabin 1 through the air inlet 11 and then discharged through the exhaust outlet 12, which can realize a forced airflow circulation channel, which is conducive to air circulation, thereby improving heat dissipation efficiency and reducing the impact of the heat generated by the charging socket terminal assembly 2 during operation on the performance of the equipment.

[0034] In this embodiment, the charging socket terminal 22 is a hollow and silver-plated copper rod. Its hollow structure is just connected to the plug of the charging gun. In order to compensate for the problem that the charging socket terminal 22 becomes thinner and the actual current carrying capacity decreases due to the hollow structure, the thickness of the copper rod is widened without changing the inner diameter of the copper rod, and the thickness of the silver plating layer on the surface is ≥50μm.

[0035] In the above technical solution, the charging socket terminal 22 is made of hollow, silver-plated copper rod. The hollow structure reduces the weight of the charging socket terminal 22 and also facilitates heat dissipation to some extent. The silver plating improves the conductivity of the charging socket terminal 22, reduces power loss during transmission, and ensures charging efficiency.

[0036] It should be noted that, according to national standards, the two charging socket terminals 22 representing DC+ and DC- in the DC charging interface are thicker than the other seven charging socket terminals 22. Therefore, the two charging socket terminals 22 representing DC+ and DC- generate more heat. Hence, a longitudinal heat dissipation notch 23 is provided on the surface of the two charging socket terminals 22 representing DC+ and DC- and located below the mounting plate 21. The heat dissipation notch 23 penetrates the side wall of the charging socket terminal 22. The charging socket terminal 22 forms a current path with the power transmission line 4 through the connecting plate 3.

[0037] The design of the heat dissipation notch 23 increases the contact area between the charging socket terminal 22 and the air, allowing heat to dissipate more quickly, reducing the operating temperature of the charging socket terminal 22, and improving its reliability. Furthermore, the heat dissipation notch 23 penetrates the side wall of the charging socket terminal 22, ensuring more uniform heat dissipation. Simultaneously, the charging socket terminal 22, the connecting plate 3, and the power transmission line 4 form a good current path, ensuring stable power transmission.

[0038] In this embodiment, the heat dissipation notch 23 includes a longitudinal notch 23a and a transverse notch 23b. The longitudinal notch 23a extends axially along the charging socket terminal 22, with a depth of 1 / 3 of the rod diameter and a width of 2mm. The transverse notch 23b intersects the longitudinal notch 23a perpendicularly in the same plane to form a grid-like heat dissipation structure with a notch spacing of 10mm.

[0039] In the above technical solution, the design of the vertical notch 23a and the horizontal notch 23b being perpendicular to each other further optimizes the shape and distribution of the heat dissipation notch 23. This structure can increase the heat dissipation area of ​​the charging socket terminal 22 in different directions, enabling the charging socket terminal 22 to effectively dissipate heat in all directions. At the same time, the two notches are on the same plane, which is conducive to the airflow at the notches, forming a more effective heat dissipation channel, thereby better reducing the temperature of the charging socket terminal 22 and improving its working performance and lifespan.

[0040] In this embodiment, the fan assembly 5 includes a mounting frame 51 attached to the outer periphery of the air inlet 11. A fan 52 is mounted on the mounting frame 51. The top of the fan 52 is the air inlet end. An air duct 53 is provided at the air inlet end of the fan 52. A filter box 54 is provided at the top of the air duct 53. A filter element 55 is provided inside the filter box 54. A flip-up cover 56 is provided at the top of the filter box 54.

[0041] In this embodiment, the filter element 55 is a commonly available filter plate, such as a microporous plate or a multi-layer staggered filter screen. The filter element 55 is placed directly in the filter box 54 and can be removed for replacement or cleaning at any time. When in use, the flip cover 56 needs to be opened to expose the filter element 54, so that it can absorb outside air after the fan 52 is running.

[0042] In the above technical solution, the mounting frame 51 of the fan assembly 5 is attached to the outer periphery of the air inlet 11, which can firmly fix the fan 52 and ensure the stability of the fan 52 during operation. The fan 52 can actively draw external cold air into the cabin 1 to dissipate heat for components such as the charging socket terminal assembly 2. The design of the air duct 53 can guide the airflow direction, allowing air to enter the cabin 1 more orderly and concentrating the airflow to improve heat dissipation efficiency. The filter element 55 inside the filter box 54 can filter impurities and dust in the incoming air, preventing these impurities from entering the cabin 1 and affecting the normal operation of the charging socket terminal assembly 2 and other components. The flip cover 56 can easily clean the filter box 54 and replace the filter element 55, improving the maintenance convenience of the fan assembly 5.

[0043] In this embodiment, two fans 52 are symmetrically arranged, each connected to the same filter box 54 via an air duct 53. The filter box 54 and the air duct 53 are internally connected. The symmetrical arrangement of the two fans 52 can provide a larger airflow, enhance heat dissipation, and allow heat inside the cabin 1 to be removed more quickly. The design of connecting the two fans 52 to the filter box 54 via the same air duct 53 allows air to enter the cabin 1 more evenly, avoiding localized poor heat dissipation, simplifying the structure of the air duct 53, and improving the overall performance and reliability of the equipment.

[0044] Optionally, fan 52 can be set to one, and the corresponding air duct 53 can also be set to only one. Using a single fan can effectively save space and power consumption.

[0045] In this embodiment, the flip-up angle of the cover plate 56 is between 0° and 270°. A large-angle flip can completely expose the inside of the filter box 54, which is convenient for thorough cleaning and allows external cold air to easily enter the filter box 54. It also makes it convenient to remove the filter element 55 inside the filter box 54 for cleaning later.

[0046] In this embodiment, the fan 52 is connected to the A+ and A- terminals of the charging socket terminal assembly 2 via the connecting wire 6. The connecting wire 6 is laid on the upper surface of the cabin 1. The power required by the fan 52 is directly supplied by the charging socket terminal assembly 2, eliminating the need for external power supply wiring and improving system integration. When the charging gun is connected to the charging socket terminal assembly 2, the A+ and A- pins of the charging gun are respectively inserted into the corresponding charging socket terminals 22 on the charging socket terminal assembly 2, thereby energizing the charging socket terminals 22. The connecting wire 6 is directly connected to these two charging socket terminals 22. Therefore, after these two charging socket terminals 22 are energized, the connecting wire 6 can directly obtain power to supply the fan 52. The connecting wire 6 is laid on the upper surface of the cabin 1. This layout can avoid the connecting wire 6 from getting tangled inside the cabin 1 or interfering with other components, ensuring the cleanliness and orderliness of the interior space of the cabin 1. It also facilitates the installation and maintenance of the connecting wire 6.

[0047] In this embodiment, an upward and outwardly expanding mounting cover 7 is provided on the outer periphery of the cockpit 1. The height of the mounting cover 7 exceeds the part of the charging socket terminal 22 located on the mounting plate 21, thus protecting the charging socket terminal assembly 2.

[0048] The working principle of the above embodiment is as follows: external air is filtered by the filter box 54 on the top of the fan assembly 5, and then drawn in by the symmetrically arranged dual fans 52. It is then guided through the air duct 53 and enters the cabin 1 from the air inlets 11 on both sides. When the cold air flows through the longitudinal and transverse heat dissipation gaps 23 on the surface of the charging socket terminal 22, it exchanges heat with the hollow silver-plated copper rod (charging socket terminal 22), carrying away the heat generated by its conductivity. The hot air is forced out through the opening at the bottom of the cabin 1 and the exhaust port 12, forming a circulating heat dissipation path. Simultaneously, the charging socket terminal 22 is directly connected to the power transmission line 4 through the connecting plate 3. The silver plating reduces resistance loss, and the heat dissipation gaps 23 increase the contact area with the airflow, further improving heat dissipation efficiency. The mounting cover 7 on the outer periphery of the cabin 1 provides physical protection for the charging socket terminal assembly 2, while the fan 52 is directly powered by the charging socket terminal assembly 2, enabling the system to operate self-sustainingly. Ultimately, through the synergistic effect of active air cooling and optimized conductive structure, the efficiency and safety of the charging process are ensured.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air-cooled charging gun holder, characterized in that, The system includes a cockpit, the upper surface of which is provided with a charging socket terminal assembly extending into the interior of the cockpit. The charging socket terminal assembly includes a mounting plate attached to the upper surface of the cockpit, the mounting plate being provided with a plurality of charging socket terminals extending into the interior of the cockpit, the bottom of the cockpit being provided with a connecting plate connected to the charging socket terminal assembly, the bottom of the connecting plate being provided with a power transmission line, and the upper surface of the cockpit being provided with a fan assembly for cooling the interior of the cockpit.

2. The air-cooled charging gun holder according to claim 1, characterized in that: The bottom of the cockpit has an open design, and the upper surface of the cockpit has mounting holes for the charging socket terminal assembly. The upper surface of the cockpit also has air inlets and exhaust outlets on both sides of the charging socket terminal assembly.

3. The air-cooled charging gun holder according to claim 1, characterized in that: The charging socket terminal is a hollow, silver-plated copper rod. A heat dissipation notch extending along the length of the charging socket terminal is provided on the surface of the charging socket terminal and below the mounting plate. The heat dissipation notch penetrates the side wall of the charging socket terminal. The charging socket terminal forms a current path with the power transmission line through the connecting plate.

4. The air-cooled charging gun holder according to claim 3, characterized in that: The heat dissipation notch includes a longitudinal notch and a transverse notch, both of which penetrate the charging socket terminal and are perpendicular to each other in the same plane.

5. The air-cooled charging gun holder according to claim 2, characterized in that: The fan assembly includes a mounting frame attached to the outer periphery of the air inlet, a fan is mounted on the mounting frame, the top of the fan is the air inlet, the air inlet of the fan is provided with an air duct, the top of the air duct is provided with a filter box, the filter box is provided with a filter element, and the top of the filter box is provided with a flip-up cover.

6. The air-cooled charging gun holder according to claim 5, characterized in that: Two fans are symmetrically arranged, and each fan is connected to the same filter box through an air duct. The filter box and the air duct are connected internally.

7. The air-cooled charging gun holder according to claim 5, characterized in that: The flip-up angle of the cover plate ranges from 0° to 270°.

8. The air-cooled charging gun holder according to claim 1, characterized in that: The multiple charging socket terminals include CC1 terminal, CC2 terminal, S+ terminal, S- terminal, A+ terminal, A- terminal, DC+ terminal, DC- terminal and PE terminal. The fan is connected to the A+ terminal and A- terminal in the charging socket terminal assembly via connecting wires, which are laid on the upper surface of the cockpit.

9. The air-cooled charging gun holder according to claim 1, characterized in that: The outer periphery of the cockpit is provided with an upward and outward-expanding mounting cover, the height of which exceeds the portion of the charging socket terminal located on the mounting plate.

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