Connecting terminal with good heat dissipation effect for liquid cooling gun and charging gun

Abstract

The utility model discloses a connecting terminal with a good heat dissipation effect for a liquid cooling gun and a charging gun, the connecting terminal comprises a first terminal and a second terminal, the first terminal is provided with a wiring part, the second terminal is provided with a channel for liquid medium circulation, and the first terminal is provided with a heat dissipation part. The channel and the wiring part are detachably connected and fixed, one side of the channel is provided with an output port, the wiring part is provided with a cable and penetrates through the channel, and gaps for allowing a liquid medium to flow are arranged between the cable and the channel and between the wiring part and the channel. The cable and the connecting position of the cable and the wiring part are wrapped inside through the channel, liquid cooling is continuously conveyed into the channel, the liquid cooling makes contact with the wiring part and the cable to the maximum extent, the heat exchange area is remarkably increased, and therefore the heat dissipation effect is improved, in addition, the heat exchange efficiency can be further improved by increasing the flowing speed of the liquid cooling in the channel, and the heat dissipation efficiency is improved. The product has the advantages of being good in heat dissipation effect and capable of controlling temperature rise.

Description

Technical Field

[0001] This utility model relates to the field of charging gun technology, and in particular to a connection terminal with good heat dissipation effect for liquid-cooled charging guns. Background Technology

[0002] High-power conductive charging is one of the main methods for quickly replenishing the energy of electric vehicles, which requires a charging gun connected to the car. The high-voltage current generates a significant amount of heat during charging, leading to high temperatures. High temperatures reduce charging efficiency and can damage the charging gun itself; overheating can even cause a fire. To ensure safe charging, the charging gun must be cooled down promptly to prevent overheating.

[0003] There are two existing liquid cooling methods for charging guns: immersion liquid cooling and enclosed liquid cooling. Immersion liquid cooling requires immersing various components in the charging gun into the coolant, which places high demands on the sealing of the parts and results in higher equipment production processes and costs, making it unsuitable for market circulation. In contrast, enclosed liquid cooling involves enclosing the coolant in a flowable container, which can be a hollow plate or other structure. This allows for heat exchange and dissipation of the wiring harness and central components inside the charging gun that require heat dissipation. This cooling method is more in line with market requirements in terms of both equipment sealing and production costs.

[0004] Existing terminals are directly connected to cables, resulting in high temperatures at the connection point. While enclosed liquid cooling relies solely on the outside of the cable directly contacting the coolant for heat exchange, this method is inefficient and ineffective. Therefore, the applicant has developed a useful design to address these issues, and the technical solution described below arose from this context. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology design and to provide a product with good heat dissipation and temperature control.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A connection terminal with good heat dissipation effect for a liquid-cooled charging gun includes a first terminal and a second terminal. The first terminal is provided with a wiring part, and the second terminal is provided with a channel for the flow of liquid medium. The channel and the wiring part are fixed by a detachable connection. An output port is provided on one side of the channel. The wiring part is provided with a cable that passes through the channel. A gap is provided between the cable and the channel, and between the wiring part and the channel, to accommodate the flow of liquid medium.

[0008] Preferably, the first terminal is provided with a retaining ring, and the retaining ring abuts against the second terminal.

[0009] Preferably, the outer wall of the wiring part is provided with an external thread groove, and the wiring part is provided with a wiring groove for accommodating cables.

[0010] Preferably, the channel is provided with an internal threaded groove and is threadedly connected to an external threaded groove.

[0011] Preferably, one end of the channel and the wiring portion are provided with a countersunk hole, and the countersunk hole is provided with a sealing ring and abuts against a retaining ring.

[0012] Preferably, the second terminal is fitted with a sealing sleeve and is located on the outer wall at the inlet of the through hole. The outer wall of the second terminal is provided with at least one protrusion, which is tightly fitted with the inner wall of the sealing sleeve.

[0013] Preferably, the detachable type is configured as an external threaded groove.

[0014] Beneficial effects:

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This invention encloses the cable and the connection point between the cable and the connector within a channel, continuously supplying liquid coolant into the channel. The liquid coolant makes maximum contact with the connector and cable, significantly increasing the heat exchange area and thus improving the heat dissipation effect. The cooled liquid coolant is discharged from the outlet after heat exchange, and the outlet can also be connected to a separate pipeline for the recycling of coolant. In addition, increasing the flow velocity of the liquid coolant in the channel can further improve the heat exchange efficiency, giving the product the advantages of good heat dissipation and controlled temperature rise. Attached Figure Description

[0017] Figure 1 This is a side cross-sectional view of a connection terminal with good heat dissipation for a liquid-cooled gun charging gun according to the present invention.

[0018] Figure 2 This utility model Figure 1 A partially enlarged view A of a connection terminal with good heat dissipation effect for a liquid-cooled gun charging gun;

[0019] Figure 3 This is an exploded structural diagram of a connection terminal with good heat dissipation effect for a liquid-cooled gun charging gun according to the present invention.

[0020] The correspondence between the labels and component names in the attached figures is as follows:

[0021] Reference numerals: 1. First terminal; 2. Second terminal; 3. Cable; 4. Spacing; 5. Sealing ring; 6. Sealing sleeve; 11. Wiring part; 12. Retaining ring; 13. External thread groove; 14. Wiring groove; 21. Channel; 22. Output port; 23. Internal thread groove; 24. Countersunk hole; 25. Protrusion. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, 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 protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", 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.

[0024] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0025] Reference example Figures 1 to 3 A connection terminal with good heat dissipation effect for a liquid-cooled gun charging gun includes a first terminal 1 and a second terminal 2. The first terminal 1 is provided with a wiring part 11, and the second terminal 2 is provided with a channel 21 for the flow of liquid medium. The channel 21 and the wiring part 11 are fixed by a detachable connection. An output port 22 is provided on one side of the channel 21. The wiring part 11 is provided with a cable 3, which passes through the channel 21. A gap 4 is provided between the cable 3 and the channel 21, and between the wiring part 11 and the channel 21 to accommodate the flow of liquid medium. The channel 21 wraps the cable 3 and the connection between the cable 3 and the wiring part 11, and continuously delivers liquid cooling into the channel 21. The liquid cooling has maximum contact with the wiring part 11 and the cable 3, which significantly increases the heat exchange area and thus improves the heat dissipation effect. The liquid cooling after heat exchange is discharged from the output port 22. The output port 22 can also be connected to a pipeline separately to facilitate the recycling of coolant. In addition, increasing the flow velocity of the liquid cooling in the channel 21 can further improve the heat exchange efficiency.

[0026] It is worth mentioning that the first terminal 1 is provided with a retaining ring 12, and the retaining ring 12 abuts against the second terminal 2;

[0027] It is worth mentioning that the outer wall of the wiring part 11 is provided with an external thread groove 13, and the wiring part 11 is provided with a wiring groove 14 for accommodating the cable 3;

[0028] It is worth mentioning that the channel 21 is provided with an internal thread groove 23, which is threaded to the external thread groove 13;

[0029] It is worth mentioning that one end of the channel 21 and the wiring part 21 are provided with a countersunk hole 24. The countersunk hole 24 is provided with a sealing ring 5 and abuts against the retaining ring 12. The sealing ring 5 prevents the liquid cooling from leaking from here during the charging process, thereby preventing a short circuit.

[0030] It is worth mentioning that the second terminal 2 is fitted with a sealing sleeve 6 and is located on the outer wall at the inlet of the through hole. The outer wall of the second terminal 2 is provided with at least one protrusion 25, which is tightly fitted with the inner wall of the sealing sleeve 6. The protrusion 25 allows the sealing sleeve 6 to be connected to the second terminal 2 in an interference fit manner. When an independent liquid cooling pipeline is inserted at the inlet of the channel 21, the sealing sleeve 6 enhances the sealing performance of the connection between the liquid cooling pipeline and the second terminal 2.

[0031] It is worth mentioning that the detachable design features an external threaded groove 13, which allows for quick assembly and facilitates later maintenance. Furthermore, by dividing the terminal into two parts and machining the two terminals independently, the difficulties of integrated machining processes are avoided.

[0032] The above design scheme enables the product to achieve the advantages of good heat dissipation and controlled temperature rise.

[0033] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A connection terminal with good heat dissipation effect for a liquid-cooled charging gun, comprising a first terminal (1) and a second terminal (2), characterized in that: The first terminal (1) is provided with a wiring part (11), and the second terminal (2) is provided with a channel (21) for the flow of liquid medium. The channel (21) and the wiring part (11) are fixed by a detachable connection. An output port (22) is provided on one side of the channel (21). The wiring part (11) is provided with a cable (3) and passes through the channel (21). A gap (4) is provided between the cable (3) and the channel (21) and between the wiring part (11) and the channel (21) to accommodate the flow of liquid medium.

2. The connection terminal with good heat dissipation effect for liquid-cooled charging guns according to claim 1, characterized in that: The first terminal (1) is provided with a retaining ring (12), and the retaining ring (12) abuts against the second terminal (2).

3. The connection terminal with good heat dissipation effect for liquid-cooled charging guns according to claim 1, characterized in that: The outer wall of the wiring part (11) is provided with an external thread groove (13), and the wiring part (11) is provided with a wiring groove (14) for accommodating the cable (3).

4. The connection terminal with good heat dissipation effect for liquid-cooled charging guns according to claim 3, characterized in that: The channel (21) is provided with an internal threaded groove (23) and is threadedly connected to the external threaded groove (13).

5. The connection terminal with good heat dissipation effect for liquid-cooled charging guns according to claim 2, characterized in that: One end of the channel (21) and the wiring part (11) are provided with a countersunk hole (24), and the countersunk hole (24) is provided with a sealing ring (5) and abuts against the retaining ring (12).

6. The connection terminal with good heat dissipation effect for liquid-cooled charging guns according to claim 1, characterized in that: The second terminal (2) is fitted with a sealing sleeve (6) and is located on the outer wall at the inlet of the through hole. The outer wall of the second terminal (2) is provided with at least one protrusion (25) and is tightly fitted with the inner wall of the sealing sleeve (6).

7. The connection terminal with good heat dissipation effect for liquid-cooled charging guns according to claim 4, characterized in that: The detachable type is configured with an external threaded groove (13).

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