Direct-current charging gun

Abstract

The utility model discloses a direct current type charging gun which comprises a heat dissipation assembly arranged in a charging gun main body, the heat dissipation assembly comprises heat dissipation fins, and the heat dissipation fins are arranged along the inner wall of the charging gun main body in a surrounding mode and correspond to a fan installed on an installation groove formed in the side wall of the charging gun. Compared with a common direct-current charging gun structure, the direct-current charging gun has a good heat dissipation function under the action of the heat dissipation assembly, and the heat dissipation fins arranged on the inner wall of the charging gun body in a surrounding mode can further improve the heat dissipation effect and can ensure the uniformity of heat dissipation in the charging gun at the same time; according to the charging method, the stability and continuity in the charging process can be further improved, the service life of the charging gun can be further prolonged while the charging efficiency is improved, potential safety hazards caused by abnormal conditions such as overheating of the charging gun in the charging process are reduced, and unnecessary panic and trouble caused to a charging vehicle owner are avoided.

Description

Technical Field

[0001] The utility model relates to the field of charging guns, in particular to a DC charging gun. Background Art

[0002] With the increasing development and popularization of new energy vehicles, the research and development and innovation of their charging technology have become the focus of attention. Currently, most commonly used charging guns are divided into two types, namely DC charging guns and AC charging guns. DC charging guns are widely used because of their faster charging speed and shorter charging time. For this reason, the existing DC charging guns also have some obvious shortcomings in practical applications.

[0003] First of all, due to the characteristics of the DC charging gun itself, a higher current is often required during the DC charging process. As the high current is continuously conducted, the gun body and its charging port are prone to heat up, which places higher requirements on the charging protection mechanism in the DC charging gun and its matching charging pile structure. At present, most common DC charging gun structures often do not have good heat dissipation effects. During the charging process, overheating of the charging gun is prone to certain safety hazards, and after long-term use, poor heat dissipation may also affect its charging efficiency and charging performance. In addition, the traditional protection mechanism usually stops charging directly or suspends charging for a period of time when abnormal conditions such as current instability occur due to overheating of the charging gun, and then resumes charging when the temperature of the charging gun drops to a certain range. This is not only inconvenient for timely adjustment, but also reduces the charging efficiency and charging stability. It is also easy to cause unnecessary charging panic to the charging owners and cause unnecessary trouble in the use of their vehicles. Utility Model Content

[0004] The purpose of the utility model is to provide a DC charging gun, which has a certain heat dissipation function and can further improve the stability and safety during the charging process.

[0005] The technical solution adopted by the utility model to solve the above problems is:

[0006] A DC charging gun includes a charging gun body, a heat dissipation component is arranged inside the charging gun body, and the heat dissipation component includes a heat sink. The heat sink is arranged around the inner wall of the charging gun body and corresponds to a fan installed on a mounting groove provided on a side wall of the charging gun.

[0007] Further: the heat sink adopts a split structure, including a first heat sink and a second heat sink. The first heat sink and the second heat sink are relatively slidably installed on both sides of the charging gun body and built into the side wall to form a certain cavity between them.

[0008] Furthermore: a heat dissipation pipe is arranged in the cavity formed between the first heat sink and the second heat sink, and a plurality of ventilation slots are opened at the cavity.

[0009] Further: a plurality of fins surround the outer wall of the heat dissipation pipe and penetrate the main body of the charging gun.

[0010] Furthermore: a temperature measuring component is also provided on the charging gun body, and the temperature measuring component includes a display screen installed on the outside of the charging gun body for temperature display and a temperature sensor connected inside the display screen.

[0011] Furthermore: the display screen is also provided with a plurality of groups of signal lights.

[0012] Furthermore: a radiator consisting of a fan and a heat sink is also provided inside the charging port on the charging gun body, and a fixing plate is provided at the contact position between the charging gun body and the charging port, and a plurality of through holes are opened on the fixing plate.

[0013] Furthermore: a snap-fitting part is slidably provided on the charging gun body and is placed at the charging port.

[0014] Furthermore: a dustproof net of a matching size is installed on the installation slot provided on the charging gun body.

[0015] Furthermore: the main shell of the charging gun adopts an inner and outer double-layer structure, the inner layer is set as a heat preservation layer, and the outer layer is set as a heat insulation layer.

[0016] Compared with the prior art, the utility model has the following advantages and effects:

[0017] The utility model discloses a DC charging gun, which has good heat dissipation function under the action of the heat dissipation component compared with the common DC charging gun structure. The heat sink arranged on the inner wall of the charging gun body can further improve the heat dissipation effect while ensuring the uniformity of heat dissipation inside the charging gun, further improve the stability and continuity of the charging process, improve the charging efficiency and further extend the service life of the charging gun, reduce the safety hazards caused by abnormal situations such as overheating of the charging gun during the charging process, avoid unnecessary panic and trouble to the charging car owner, and the heat dissipation component can start and stop according to the specific use status of the charging gun by judging the conduction of the internal charging circuit current, so as to further reduce unnecessary energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a DC charging gun according to an embodiment of the utility model.

[0019] Figure 2-4It is a partial enlarged view of a DC charging gun according to an embodiment of the utility model.

[0020] Figure numbers: charging gun body 1, mounting groove 11, charging port 12, fixing plate 13, through hole 131, snap-on piece 14, heat dissipation assembly 2, heat sink 21, first heat sink 211, second heat sink 212, slide groove 213, ventilation groove 214, fan 22, heat dissipation pipe 23, fin 231, temperature measuring assembly 3, display screen 31, signal light 32, dustproof net 4. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0022] See also Figure 1-4 The present embodiment relates to a DC charging gun, including a charging gun body 1, wherein a heat dissipation assembly 2 is arranged inside the charging gun body 1, wherein the heat dissipation assembly 2 includes a heat sink 21, and the heat sink 21 is arranged around the inner wall of the charging gun body 1 and corresponds to a fan 22 installed on a mounting groove 11 provided on a side wall of the charging gun.

[0023] Specifically in this embodiment, when using this DC charging gun, the heat dissipation component 2 provided inside the charging gun body 1 can dissipate heat for the charging gun body 1, so that the charging gun maintains a constant temperature. For specific configurations of the heat dissipation component 2 inside the charging gun, see Figure 2As shown in the figure, when the heat dissipation component 2 is installed, its signal line is connected to the charging line in the charging gun body 1. When current passes through the internal charging line of the charging gun during the charging process, the heat dissipation component 2 starts to work. The heat generated inside the charging gun during the charging process can be dissipated through the heat sink 21 arranged around the inner wall thereof, and under the action of the fan 22 arranged on the mounting groove 11 at the corresponding position of the side wall of the charging gun, cold air can be introduced into the charging gun along the side wall of the charging gun, so as to realize the continuous circulation of the air inside the charging gun and continuously dissipate the heat of the charging gun body 1 and the heat sink 21 inside the charging gun. This DC charging gun is relatively stable under the action of the heat dissipation component 2. Compared with the common DC charging gun structure, it has a good heat dissipation effect. The heat sink 21 arranged around the inner wall of the charging gun body 1 can further improve the heat dissipation effect while ensuring the uniformity of heat dissipation inside the charging gun, and can further improve the stability and continuity of the charging process. While improving the charging efficiency, it can further extend the service life of the charging gun, reduce the safety hazards caused by abnormal situations such as overheating of the charging gun during the charging process, and avoid unnecessary panic and trouble for the charging car owners. The heat dissipation component 2 can start and stop according to the specific use status of the charging gun by judging the conduction of the internal charging circuit current, thereby further reducing unnecessary energy loss.

[0024] The heat sink 21 is provided in a split structure, including a first heat sink 211 and a second heat sink 212. The first heat sink 211 and the second heat sink 212 are relatively slidably installed on both sides of the charging gun body 1 and are built into the side wall to form a certain cavity between them. Figure 2 As shown, the heat sink 21 with a split structural design can further increase the surface area of ​​the heat sink 21, improve the heat dissipation efficiency, and the first heat sink 211 and the second heat sink 212 inside the charging gun body 1 can slide relative to each other through the slide groove 213 provided thereon, which is also convenient for installation, disassembly and replacement, so that it has high adaptability to charging gun bodies 1 of different sizes and shapes. In addition, the cavity formed between the first heat sink 211 and the second heat sink 212 can facilitate the connection of the charging circuit inside the charging gun, and is beneficial to the heat conduction between the heat sinks 21 and the air circulation inside the charging gun body 1, thereby reducing the influence of heat accumulation on the charging gun body and its internal charging circuit, and improving the overall heat dissipation performance.

[0025] A heat dissipation pipe 23 is arranged in the cavity formed between the first heat sink 211 and the second heat sink 212, and a plurality of ventilation slots 214 are opened at the cavity position. The heat dissipation pipe 23 can be used to pass the charging circuit inside the charging gun body 1, which is convenient for the connection and heat dissipation of the charging circuit and plays a certain protective role. The heat dissipation pipe 23 arranged in the cavity cooperates with the plurality of ventilation slots 214 opened at the cavity positions of the first heat sink 211 and the second heat sink 212 and the fans 22 arranged on both sides of the side walls of the charging gun body 1 on both sides of the first heat sink 211 and the second heat sink 212, so that the air in the charging gun body 1 can be continuously conducted and circulated, which can effectively improve the heat dissipation effect and heat dissipation efficiency inside the charging gun body 1.

[0026] The heat dissipation pipe 23 is surrounded by a plurality of fins 231 on its outer wall and is arranged through the charging gun body 1. The heat dissipation pipe 23 arranged inside the charging gun body 1 and the plurality of fins 231 surrounding its outer wall can further improve the heat dissipation efficiency while facilitating the overall connection of the internal charging circuit, thereby improving the convenience of the installation process and effectively preventing the internal charging circuit of the charging gun from getting entangled during use, thereby ensuring the stability during the charging process.

[0027] A temperature measuring component 3 is also provided on the charging gun body 1. The temperature measuring component 3 includes a display screen 31 installed on the outside of the charging gun body 1 for displaying temperature and a temperature sensor connected inside the body. The temperature measuring component 3 can detect and monitor the internal stability in real time through the temperature sensor connected inside the charging gun body 1 and display the real-time temperature through the display screen 31 provided on the outside. Under the action of the temperature measuring component 3, the charging gun body 1 can conveniently observe the current temperature of the charging gun during use, which can further enhance the user experience and safety of use.

[0028] The display screen 31 is also provided with a plurality of signal lights 32, which can display the temperature of the charging gun within a specific range during the charging process in different colors, thereby facilitating real-time observation and timely adjustment of the real-time status of the charging gun and improving the safety and reliability of the charging gun.

[0029] The charging port 12 on the charging gun body 1 is also provided with a radiator composed of a fan 22 and a heat sink 21, and a fixing plate 13 is provided at the contact position between the charging gun body 1 and the charging port 12, and the fixing plate 13 is provided with a plurality of through holes 131. The radiator provided inside the charging port 12 can further improve the heat dissipation effect at the charging port 12 of the charging gun while ensuring the stable connection between the charging gun and the charging vehicle during the charging process of the charging gun, and play a certain heat dissipation role at the charging port of the charging vehicle to which the charging gun is connected during the charging process, thereby ensuring the stable progress of the charging process and further improving the safety of use. In addition, see Figure 4 As shown, the fixing plate 13 can further improve the connection stability and overall rigidity of the charging gun body 1 and the connection between it and the charging port 12, and further reduce the probability of deformation of the charging gun body 1 or the charging port 12 due to long-term use. At the same time, the plurality of through holes 131 opened on the fixing plate 13 can ensure the air circulation inside the charging gun body 1 and the corresponding charging position of the charging vehicle connected thereto under the action of the heat dissipation component 2, ensure the heat dissipation uniformity and temperature consistency of the heat dissipation component 2, and reduce the damage to the charging gun body 1 or the charging part of the charging vehicle caused by local excessively high or low temperature.

[0030] A latch 14 is also slidably provided on the charging gun body 1 and is placed at the charging port 12. The latch 14 is convenient for plugging and unplugging and can further improve the stability of the connection between the charging gun and the charging vehicle, thereby preventing the charging gun from loosening or falling off due to uncertain factors such as the external environment during the charging process, thereby ensuring the safety and reliability of the charging process.

[0031] The mounting groove 11 provided on the charging gun body 1 is also provided with a dustproof net 4 of an appropriate size. Figure 1 or Figure 3 As shown, the dust-proof net 4 can play a certain dust-proof role for the heat dissipation component 2 inside the charging gun during the heat dissipation process without affecting the internal air circulation, reduce the impact of dust or debris entering the interior of the charging gun on the heat dissipation component 2 and other components, improve reliability and appropriately extend its service life. At the same time, the dust-proof net 4 installed in the mounting groove 11 is also convenient for disassembly and cleaning.

[0032] The main shell of the charging gun adopts an inner and outer double-layer structure, wherein the inner layer is a heat preservation layer and the outer layer is a heat insulating layer. The heat preservation layer can have a certain heat preservation effect, ensuring the heat dissipation effect of the internal heat dissipation component 2 of the charging gun while further improving the heat dissipation efficiency. The heat insulating layer can reduce the phenomenon of unstable charging of the charging gun and reduced charging efficiency caused by excessively high or low external temperature, and can also further reduce the impact on the heat dissipation component 2 in the charging gun body 1, so as to improve the stability of the heat dissipation process.

[0033] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A DC charging gun, comprising a charging gun body, characterized in that: A heat dissipation component is arranged inside the charging gun body, and the heat dissipation component includes a heat sink. The heat sink is arranged around the inner wall of the charging gun body and corresponds to the fan installed on the installation groove provided on the side wall of the charging gun.

2. A DC charging gun according to claim 1, characterized in that: The heat sink adopts a split structure, including a first heat sink and a second heat sink. The first heat sink and the second heat sink are relatively slidably installed on both sides of the charging gun body and built into the side wall to form a certain cavity between them.

3. A DC charging gun according to claim 2, characterized in that: A heat dissipation pipe is arranged in the cavity formed between the first heat dissipation fin and the second heat dissipation fin, and a plurality of ventilation slots are opened at the position of the cavity.

4. A DC charging gun according to claim 3, characterized in that: The outer wall of the heat dissipation pipe is surrounded by a plurality of fins and is penetrated through the main body of the charging gun.

5. A DC charging gun according to claim 1, characterized in that: The charging gun body is also provided with a temperature measuring component, which includes a display screen installed on the outside of the charging gun body for temperature display and a temperature sensor connected inside the display screen.

6. A DC charging gun according to claim 5, characterized in that: The display screen is also provided with a plurality of groups of signal lights.

7. A DC charging gun according to claim 1, characterized in that: A radiator including a fan and a heat sink is also provided inside the charging port on the charging gun body, and a fixing plate is provided at the contact position between the charging gun body and the charging port, and a plurality of through holes are opened on the fixing plate.

8. The DC charging gun according to claim 1, characterized in that: The charging gun body is also slidably provided with a snap-fit ​​piece which is placed at the charging port.

9. A DC charging gun according to claim 1, characterized in that: A dustproof net of a matching size is also installed on the installation slot provided on the charging gun body.

10. A DC charging gun according to claim 1, characterized in that: The main body shell of the charging gun adopts an inner and outer double-layer structure, wherein the inner layer is a heat preservation layer and the outer layer is a heat insulation layer.

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