Charging pile with gun head liquid cooling function

Abstract

The charging pile comprises a charging gun head, a connecting line and a pile body, the charging gun head comprises a shell, a cooling assembly and a waterproof assembly, a connecting terminal is arranged in an inner cavity of the shell, the left side of the connecting terminal penetrates to the outer side of the shell, the right side of the bottom of the shell is fixedly connected with a grip, and the right side of the bottom of the shell is fixedly connected with a water inlet. The cooling assembly is arranged in an inner cavity of the shell and comprises a heat conduction plate, the right side of the heat conduction plate is fixedly connected with a water cooling shell, and the right side of the inner cavity of the shell is fixedly connected with a cylindrical water storage box. According to the utility model, through the arrangement of the cooling assembly, the coolant between the water cooling shell and the water storage box can be circulated through the water pump, so that the coolant in the water cooling shell enters the water storage box again through the heat dissipation pipe, and the high temperature generated when the connecting terminal works is taken away through the circulation of the coolant; the connecting terminal is prevented from working in a high-temperature state for a long time, charging abnormity can be avoided, and the safety can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging equipment, and in particular relates to a charging pile. Background Art

[0002] Charging piles are mainly used to charge electric vehicles, etc. They are usually composed of a pile body, connecting lines and charging gun heads. The pile body converts the mains electricity into the charging voltage required by the electric vehicle. The charging gun head is an interface device connected to the electric vehicle, which is used to input the electric energy transmitted through the connecting line into the electric vehicle.

[0003] Among them, the charging gun head in the prior art is usually composed of components such as a connection terminal, a connection line and a shell, which is connected to the charging port of the vehicle through the connection terminal, and the vehicle is charged through the charging pile and the connection line. However, many current charging gun heads do not have a heat dissipation function. Due to the contact resistance between the connection terminal and the vehicle charging port, and the long charging time of the vehicle, a large amount of heat will be generated during the charging process, especially in hot weather. Under the influence of external weather, the temperature of the charging gun head will be very high. If the heat is not dissipated in time, the charging gun head will cause charging abnormalities due to overheating, causing the charging process to terminate. In more serious cases, the charging gun head will burn, posing a major safety hazard.

[0004] To this end, we provide a charging pile with gun tip liquid cooling to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a charging pile with gun head liquid cooling, which can cool the charging gun head and avoid the problem of abnormal charging caused by overheating of the charging gun head.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] A charging pile with gun tip liquid cooling, comprising a charging gun tip, a connecting line and a pile body, wherein two ends of the connecting line are respectively connected to the charging gun tip and the pile body, the charging gun tip comprises an outer shell, a cooling component and a waterproof component, the inner cavity of the outer shell is provided with a connecting terminal, the left side of the connecting terminal penetrates to the outside of the outer shell, and the right side of the bottom of the outer shell is fixedly connected with a handle; the cooling component is arranged in the inner cavity of the outer shell, comprising a heat conducting plate, the right side of the heat conducting plate is fixedly connected with a water cooling shell, the right side of the inner cavity of the outer shell is fixedly connected with a cylindrical water storage box, the bottom between the water storage box and the water cooling shell is connected with a heat dissipation pipe, the top of the inner cavity of the outer shell is fixedly connected with a water pump, the water pump is respectively connected with the water storage box and the water cooling shell, the right side of the outer shell is connected with an exhaust pipe, the inner cavity of the exhaust pipe is provided with a fan, and the bottom of the outer shell is connected with a heat exhaust pipe below the heat dissipation pipe.

[0008] According to the charging pile with gun tip liquid cooling, a heat sink is fixedly connected to the right side of the heat conducting plate, and the right side of the heat sink penetrates into the inner cavity of the water cooling shell.

[0009] According to the charging pile with gun tip liquid cooling, the waterproof component is arranged on the surface of the shell, including a waterproof cover, both sides of the waterproof cover are fixedly connected with sealing rings, the top of the shell is fixedly connected with a reset box, the inner cavity of the reset box is provided with a spring, the left side of the spring is fixedly connected with a push rod, the left side of the push rod passes through the reset box and is fixedly connected to the waterproof cover.

[0010] According to the charging pile with gun tip liquid cooling, a filter is fixedly connected to the right side of the inner cavity of the exhaust pipe, and a baffle is fixedly connected to the right side of the exhaust pipe through a column head.

[0011] According to the charging pile with gun tip liquid cooling, the top and bottom of the fan are fixedly connected with mounting rods, and the side of the mounting rod away from the fan is fixedly connected to the inner wall of the exhaust pipe.

[0012] According to the charging pile with gun tip liquid cooling, the top of the water storage box is connected to a water injection pipe, the top of the water injection pipe passes through the outer shell and is covered with a sealing cover.

[0013] According to the charging pile with gun tip liquid cooling, a thermal conductive silicone grease layer is provided between the left side of the heat conductive plate and the connecting terminal.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model can circulate the coolant between the water-cooling shell and the water storage box through the setting of the cooling component through the water pump, so that the coolant in the water-cooling shell re-enters the water storage box through the heat dissipation pipe, and the high temperature generated by the connection terminal during operation is taken away by the circulation of the coolant, so as to prevent the connection terminal from working in a high temperature state for a long time, which can not only avoid charging abnormalities and prevent overheating and power failure during long-term operation, but also improve its safety.

[0016] 2. The utility model can improve the sealing and waterproof effect of the charging gun head by setting a waterproof component through the cooperation of a waterproof cover and a sealing ring. When the charging gun head is connected to the charging port of the vehicle, the waterproof cover is squeezed and moves backward. Through the elasticity of the spring, the sealing ring is always in contact with the charging interface of the vehicle to prevent external rainwater from entering the charging port of the vehicle, thereby improving the waterproof effect of the charging gun head and will not affect the normal charging of the charging gun head.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural stereogram of a charging pile with gun tip liquid cooling;

[0020] Figure 2 This is a cross-sectional view of the outer shell of the charging gun head;

[0021] Figure 3 This is a cross-sectional view of the water cooling shell of the charging gun head;

[0022] Figure 4 This is a cross-sectional view of the exhaust pipe of the charging gun head;

[0023] Figure 5 This is a cross-sectional view of the reset box of the charging gun head.

[0024] In the attached figure:

[0025] 100, charging gun head; 200, connecting line 200; 300, pile body 300;

[0026] 1. Shell; 2. Connecting terminal; 3. Handle; 4. Cooling component; 401. Heat conduction plate; 402. Water cooling shell; 403. Water storage box; 404. Heat dissipation pipe; 405. Water pump; 406. Exhaust pipe; 407. Fan; 408. Baffle; 5. Waterproof component; 501. Waterproof cover; 502. Sealing ring; 503. Reset box; 504. Spring; 505. Push rod; 6. Heat sink; 7. Heat dissipation pipe; 8. Handle; 9. Filter. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-5The utility model is a charging pile with gun head liquid cooling, comprising a charging gun head 100, a connecting line 200 and a pile body 300, wherein the connecting line 200 is respectively connected to the charging gun head 100 and the pile body 300. Among them, the charging gun head 100 includes a shell 1, a cooling component 4 and a waterproof component 5. The inner cavity of the shell 1 is provided with a connecting terminal 2, and the left side of the connecting terminal 2 passes through the outside of the shell 1. The right side of the bottom of the shell 1 is fixedly connected to a handle 3, and the right side of the handle 3 is fixedly connected to a handle 8. The cooling component 4 is arranged in the inner cavity of the shell 1, including a heat conducting plate 401, and the right side of the heat conducting plate 401 is fixedly connected to a water cooling shell 402. The right side of the inner cavity of the shell 1 is fixedly connected to a cylindrical water storage box 403, and the bottom between the water storage box 403 and the water cooling shell 402 is connected to a heat dissipation pipe 404. The top of the inner cavity of the shell 1 is fixedly connected to a water pump 405, and the water pump 405 is respectively connected to the water storage box 403 and the water cooling shell 402. The right side of the shell 1 is connected to an exhaust pipe 406, and the inner cavity of the exhaust pipe 406 is provided with a fan 407. The bottom of the shell 1 is connected to a heat exhaust pipe 7, which is located below the heat dissipation pipe 404.

[0029] Specifically, the handle 3 is connected to the housing 1 by bolt fixing or integral injection molding, the surfaces of the water-cooling shell 402 and the water storage box 403 are connected to the housing 1 by glue, the heat dissipation pipe 404 is made of pure copper, which can improve its thermal conductivity, so that the heat in the coolant is discharged by the heat dissipation pipe 404, the sealing ring 502 is connected to the waterproof cover 501 by waterproof glue, and the sealing ring 502 on one side is interference fit with the housing 1. The water-cooling shell 402, the water storage box 403 and the heat dissipation pipe 404 are filled with coolant.

[0030] The waterproof component 5 is arranged on the surface of the housing 1, and includes a waterproof cover 501, and sealing rings 502 are fixedly connected to both sides of the waterproof cover 501, and a reset box 503 is fixedly connected to the top of the housing 1, and a spring 504 is arranged in the inner cavity of the reset box 503, and a push rod 505 is fixedly connected to the left side of the spring 504, and the left side of the push rod 505 penetrates the reset box 503 and is fixedly connected to the waterproof cover 501. Specifically, both sides of the spring 504 are fixedly connected to the push rod 505 and the inner wall of the reset box 503, and a through hole for use with the push rod 505 is opened on the left side of the reset box 503.

[0031] A heat sink 6 is fixedly connected to the right side of the heat conducting plate 401, and the right side of the heat sink 6 penetrates into the inner cavity of the water cooling shell 402. A filter screen 9 is fixedly connected to the right side of the inner cavity of the exhaust pipe 406, and a baffle 408 is fixedly connected to the right side of the exhaust pipe 406 through a column head.

[0032] Specifically, the heat sink 6 is made of a thin copper plate, which can effectively conduct the heat of the heat conducting plate 401 to the coolant. The airflow generated by the fan 407 passes through the water storage box 403 and the heat dissipation pipe 404. The hot air in the outer shell 1 can be discharged by using the heat exhaust pipe 7, and the heat on the surface of the heat dissipation pipe 404 is taken away by the high-speed airflow; the column heads are respectively connected to the left side of the baffle 408 and the right end of the exhaust pipe 406 to form a circular air inlet gap on the left side of the baffle 408 and the right end of the exhaust pipe 406, which can prevent foreign matter from entering the exhaust pipe 406.

[0033] Mounting rods are fixedly connected to the top and bottom of the fan 407, and the side of the mounting rods away from the fan 407 is fixedly connected to the inner wall of the exhaust pipe 406. The top of the water storage box 403 is connected to a water injection pipe, and the top of the water injection pipe passes through the outer shell 1 and is covered with a sealing cover. The left side of the heat conducting plate 401 is in contact with the connecting terminal 2, and a thermal conductive silicone grease layer is arranged between the heat conducting plate 401 and the connecting terminal 2.

[0034] The connecting terminal 2 comprises an insulating ceramic seat, in which a conductive column and / or a conductive cylinder for transmitting electric energy is embedded, and an insulating rubber layer is covered on the outer side of the insulating ceramic seat.

[0035] Specifically: the surface of the water injection pipe is connected to the sealing cover through a thread, which can facilitate the user to inject coolant into the water storage box 403. The through hole is opened by a drill bit to facilitate the push rod 505 to move left and right. The spring 504 can cooperate with the push rod 505 to drive the waterproof cover 501 to always squeeze the vehicle charging port. The thermal grease layer can better export the heat generated by the connection terminal 2 during operation to the heat conducting plate 401, thereby improving the thermal conductivity of the heat conducting plate 401.

[0036] The working principle of the utility model is as follows: when the charging gun head 100 is inserted into the charging port of the vehicle, the sealing ring 502 on the left side of the waterproof cover 501 is pressed by the spring 504 to fit with the charging port of the vehicle to form a seal to prevent rainwater from entering the charging port. Then the fan 407 and the water pump 405 are started, and the water pump 405 cooperates with the heat dissipation pipe 404 to circulate the coolant in the water storage box 403 and the water cooling shell 402, so that the circulating coolant takes away the heat derived from the heat conduction plate 401. At the same time, the outside air is sucked into the shell 1 by the fan 407, and then discharged through the heat exhaust pipe 7, so that a high-speed airflow is formed near the heat dissipation pipe 404, which takes away the heat derived from the heat dissipation pipe 404 and cools down the coolant. In this cycle, the connection terminal 2 is always kept at a suitable working temperature for charging, so as to prevent its temperature from being too high and causing abnormal charging, thereby improving its safety.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A charging pile with gun head liquid cooling, comprising a charging gun head, a connecting line and a pile body, wherein the two ends of the connecting line are respectively connected to the charging gun head and the pile body, characterized in that: The charging gun head includes a shell, a cooling component and a waterproof component. The inner cavity of the shell is provided with a connecting terminal. The left side of the connecting terminal penetrates the outside of the shell. The right side of the bottom of the shell is fixedly connected with a handle. The cooling component is arranged in the inner cavity of the shell, and includes a heat conducting plate. A water cooling shell is fixedly connected to the right side of the heat conducting plate. A cylindrical water storage box is fixedly connected to the right side of the inner cavity of the shell. A heat dissipation pipe is connected to the bottom between the water storage box and the water cooling shell. A water pump is fixedly connected to the top of the inner cavity of the shell. The water pump is respectively connected to the water storage box and the water cooling shell. An exhaust pipe is connected to the right side of the shell. A fan is arranged in the inner cavity of the exhaust pipe. A heat exhaust pipe is connected to the bottom of the shell below the heat dissipation pipe.

2. A charging pile with gun tip liquid cooling according to claim 1, characterized in that: A heat sink is fixedly connected to the right side of the heat conducting plate, and the right side of the heat sink penetrates into the inner cavity of the water cooling shell.

3. A charging pile with gun tip liquid cooling according to claim 1, characterized in that: The waterproof component is arranged on the surface of the shell, including a waterproof cover, both sides of the waterproof cover are fixedly connected with sealing rings, the top of the shell is fixedly connected with a reset box, the inner cavity of the reset box is provided with a spring, the left side of the spring is fixedly connected with a push rod, the left side of the push rod passes through the reset box and is fixedly connected to the waterproof cover.

4. The charging pile with gun tip liquid cooling according to claim 1, characterized in that: A filter screen is fixedly connected to the right side of the inner cavity of the exhaust pipe, and a baffle is fixedly connected to the right side of the exhaust pipe through a column head.

5. The charging pile with gun tip liquid cooling according to claim 1, characterized in that: The top and bottom of the fan are both fixedly connected with mounting rods, and a side of the mounting rod away from the fan is fixedly connected to the inner wall of the exhaust pipe.

6. The charging pile with gun tip liquid cooling according to claim 1, characterized in that: The top of the water storage box is connected with a water injection pipe, the top of the water injection pipe passes through the shell and is sleeved with a sealing cover.

7. The charging pile with gun tip liquid cooling according to claim 1, characterized in that: A thermal conductive silicone grease layer is arranged between the left side of the heat conductive plate and the connecting terminal.

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