Charging gun heat dissipation mechanism

Abstract

The utility model belongs to the technical field of charging guns, and particularly relates to a charging gun heat dissipation mechanism which comprises a charging gun, a heat dissipation cavity and an installation cavity, the heat dissipation cavity and the installation cavity are arranged in the charging gun, a charging head and a pressing piece are arranged at the front end of the charging gun, a connecting wire is arranged at the rear end of the charging gun, and a power connection part is arranged at the rear end of the charging head. A driving part is arranged at the rear end of the pressing part, a magnetic push rod is arranged on one side of the driving part, an elastic groove is formed in the mounting cavity, a spring is arranged in the elastic groove and abuts against the driving part, the heat dissipation cavity comprises an exchange part, a circulation part and an electromagnetic valve, a plurality of cooling fins are arranged in the exchange part, and a switch part of the electromagnetic valve penetrates through the heat dissipation cavity to be arranged in the mounting cavity; the magnetic push rod is in magnetic attraction fit with the switch part of the electromagnetic valve, the connecting line comprises an outer skin, a liquid cooling pipe, a liquid changing pipe and a power line, after the charging gun is inserted back into the charging pile, the pressing piece is extruded again to open the valve body of the electromagnetic valve, heat dissipation is conducted on the interior of the charging gun after charging, and sufficient heat dissipation is achieved when the interior of the charging gun is used and after the charging gun is used.

Description

Technical Field

[0001] The utility model relates to the technical field of charging guns, and in particular to a heat dissipation mechanism of a charging gun. Background Art

[0002] With the development of new energy electric vehicles, charging piles for these vehicles are also being built. The charging gun is the connecting component between the charging pile and the electric vehicle's charging port. Simply plugging the charging gun into the charging port allows charging to take place. However, during the charging process, the gun generates a large amount of heat due to the flow of current. If this heat cannot be dissipated quickly, it can cause serious damage to the gun, reducing the safety of the charging pile. It can also hinder the gun's charging efficiency, significantly reducing charging efficiency and wasting energy. Existing charging guns typically require thermal insulation treatment, resulting in poor insulation inside the gun. However, after charging is complete, residual heat remains inside the gun. If this heat is not dissipated promptly, it can easily damage the electronic components within the gun. Utility Model Content

[0003] The purpose of the present invention is to provide a heat dissipation mechanism for a charging gun, which aims to solve the technical problem in the prior art that residual temperature remains in the charging gun after charging is completed, and if the heat is not dissipated in time, the electronic components in the charging gun may be easily damaged.

[0004] To achieve the above objectives, an embodiment of the present invention provides a charging gun heat dissipation mechanism, comprising a charging gun, a heat dissipation cavity and an installation cavity provided in the charging gun, wherein the front end of the charging gun is provided with a charging head and a pressing member, and the rear end is provided with a connecting wire. The rear end of the charging head is provided with a power connection portion, the rear end of the pressing member is slidably connected to the installation cavity, the rear end of the pressing member is provided with a driving member, one side of the driving member is provided with a magnetic push rod, an elastic groove is provided in the installation cavity, a spring is provided in the elastic groove, and the spring abuts against the driving member, the heat dissipation cavity comprises an exchange portion, a circulation portion and a solenoid valve, the exchange portion is provided with a plurality of heat dissipation fins, the valve body of the solenoid valve is used to connect the exchange portion and the circulation portion, the switch portion of the solenoid valve passes through the heat dissipation cavity and is provided in the installation cavity, the magnetic push rod is magnetically engaged with the switch portion of the solenoid valve, the connecting wire comprises an outer sheath and a cold liquid pipe, a liquid exchange pipe and a power cord provided in the outer sheath, the cold liquid pipe is used to input coolant into the exchange portion, the liquid exchange pipe is used to output coolant in the circulation portion, and the power cord is used to achieve connection with the power connection portion.

[0005] Preferably, the driving member is further provided with a pushing portion, the pushing portion is fixedly connected to the spring, and the pushing portion is limitedly slidably connected to the elastic groove.

[0006] Preferably, each of the heat sinks extends toward the inner wall of the exchange portion and abuts against the inner wall of the exchange portion, and the inner wall of the exchange portion is provided with a support seat for clamping each of the heat sinks.

[0007] Preferably, the heat dissipation cavity further includes a reinforcement layer, and the reinforcement layer is adhered to the exchange part and the circulation part.

[0008] Preferably, a movable opening and a limiting portion are provided at the front end of the installation cavity, the driving member is slidably connected to the movable opening, the limiting portion is located on one side of the movable opening, and the front side of the driving member is in limiting contact with the inner wall of the limiting portion.

[0009] Preferably, the charging gun is provided with a locking mechanism, which includes a lock and a button for unlocking and closing the lock.

[0010] Preferably, the portion of the power connection portion located in the heat dissipation cavity is covered with a heat-conducting layer, and the heat dissipating fins are evenly distributed on the surface of the heat-conducting layer.

[0011] One or more of the above technical solutions in the heat dissipation mechanism of the charging gun provided by the embodiment of the utility model have at least one of the following technical effects:

[0012] When in use, lift the charging gun and connect the charging head to the charging port of the car. During this process, the outer wall of the charging port of the car squeezes the pressing piece at the same time, and the pressing piece slides into the installation cavity and compresses the spring. The magnetic push rod gradually moves toward the switch part of the solenoid valve, and finally the magnetic push rod contacts the switch of the solenoid valve, causing the valve body of the solenoid valve to open. The cooling oil is filled into the exchange part through the cold liquid pipe through the oil pump arranged in the charging pile, and each heat sink is immersed in the cooling oil for heat exchange. The cooling oil enters the circulation part through the valve body of the solenoid valve, and finally the cooling oil is returned to the heat dissipation mechanism of the charging pile through the heat exchange pipe for heat dissipation circulation; after charging is completed, the charging gun is taken out, and the pressing piece is pushed under the elastic extension action of the spring to move the magnetic push rod away from the switch part of the solenoid valve, so that the valve body of the solenoid valve is temporarily closed. After the charging gun is inserted back into the charging pile, the pressing piece is squeezed again to open the valve body of the solenoid valve, so that the charging gun is fully dissipated after charging, thereby achieving sufficient heat dissipation in the charging gun during and after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the overall structure of the heat dissipation mechanism of the charging gun provided in an embodiment of the utility model;

[0014] Figure 2 A cross-sectional view of the heat dissipation mechanism of the charging gun provided in an embodiment of the present utility model;

[0015] Figure 3 This is a cross-sectional view of the circulation portion of the heat dissipation mechanism of the charging gun provided in an embodiment of the present invention.

[0016] Among them, the reference numerals in the figures are:

[0017] 1-charging gun, 11-charging head, 12-pressing part, 121-driving part, 122-magnetic push rod, 123-pushing part, 13-connecting line, 131-outer skin, 132-cold liquid pipe, 133-liquid exchange pipe, 134-power cord, 14-power connection part, 2-heat dissipation cavity, 21-exchange part, 211-heat sink, 212-support seat, 22-circulation part, 23-solenoid valve, 24-reinforcement layer, 3-installation cavity, 31-elastic groove, 32-spring, 33-movable port, 34-limiting part, 41-lock, 42-button DETAILED DESCRIPTION

[0018] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0019] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0021] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on specific circumstances.

[0022] In one embodiment of the present invention, Figures 1 to 3 As shown, a charging gun heat dissipation mechanism is provided, including a charging gun 1 and a heat dissipation cavity 2 and an installation cavity 3 arranged in the charging gun 1. The front end of the charging gun 1 is provided with a charging head 11 and a pressing member 12, and the rear end is provided with a connecting line 13. The rear end of the charging head 11 is provided with a power connection portion 14, and the rear end of the pressing member 12 is slidably connected to the installation cavity 3. The rear end of the pressing member 12 is provided with a driving member 121, and a magnetic push rod 122 is provided on one side of the driving member 121. An elastic groove 31 is provided in the installation cavity 3, and a spring 32 is provided in the elastic groove 31. The spring 32 abuts against the driving member 121. The heat dissipation cavity 2 includes an exchange portion 21, a circulation portion 22 and an electromagnetic valve 2 3. A plurality of heat sinks 211 are provided in the exchange part 21. The valve body of the solenoid valve 23 is used to connect the exchange part 21 and the circulation part 22. The switch part of the solenoid valve 23 is arranged in the installation cavity 3 through the heat dissipation cavity 2. The magnetic push rod 122 is magnetically matched with the switch part of the solenoid valve 23. The connecting line 13 includes an outer skin 131 and a cold liquid pipe 132, a liquid exchange pipe 133 and a power line 134 provided in the outer skin 131. The cold liquid pipe 132 is used to input coolant into the exchange part 21. The liquid exchange pipe 133 is used to output the coolant in the circulation part 22. The power line 134 is used to connect with the power connection part 14.

[0023] Furthermore, the driving member 121 is further provided with a pushing portion 123, which is fixedly connected to the spring 32 and is in limited sliding connection with the elastic groove 31. Specifically, when in use, the charging gun is lifted to connect the charging head 11 to the charging port of the car. During this process, the outer wall of the charging port of the car squeezes the pressing member 12 at the same time, and the pushing portion 123 slides into the installation cavity 3 and compresses the spring 32, and slides into the elastic groove 31, so that the posture of the pressing member 12 is more stable during the movement, and the magnetic push rod 122 gradually moves toward the switch portion of the solenoid valve 23, and finally the magnetic push rod 122 contacts the switch of the solenoid valve 23, so that the valve body of the solenoid valve 23 is opened, achieving a better switching effect of the valve body.

[0024] Furthermore, each of the heat sinks 211 extends toward and abuts the inner wall of the exchange portion 21. The inner wall of the exchange portion 21 is provided with a support base 212 for clamping each of the heat sinks 211. Specifically, by providing the support base 212, when the charging gun housing and internal components are installed and positioned, each heat sink 211 is fixed to a support base 212, thereby stabilizing the posture of the power connection portion 14 located within the heat dissipation cavity 2, thereby facilitating subsequent structural installation.

[0025] Furthermore, the heat dissipation cavity 2 further includes a reinforcement layer 24, which is attached to the exchange portion 21 and the circulation portion 22. Specifically, by providing the reinforcement layer 24, the structure inside the charging gun can be reinforced, thereby improving the structural strength of the hollow charging gun.

[0026] Furthermore, the front end of the mounting cavity 3 is provided with a movable opening 33 and a limiting portion 34. The driving member 121 is slidably connected to the movable opening 33. The limiting portion 34 is located on one side of the movable opening 33, and the front side of the driving member 121 is in limited contact with the inner wall of the limiting portion 34. Specifically, after charging is completed, the charging gun is removed, and the elastic extension of the spring 32 pushes the pressing member 12, causing it to eventually contact the inner wall of the limiting portion 34, moving the magnetic push rod 122 away from the switch portion of the solenoid valve 23, temporarily closing the valve body of the solenoid valve 23, limiting the range of movement of the pressing member 12, and achieving a better valve switching effect.

[0027] Furthermore, the charging gun is provided with a locking mechanism, which includes a lock 41 and a button 42 for unlocking and closing the lock 41. Specifically, when the charging gun is lifted and the charging head 11 is connected to the charging interface of the car, the charging head 11 of the charging gun is engaged with the charging interface of the car through the lock 41. Since the existing charging gun is usually also engaged with the charging port of the car using the lock 41, the charging port of the car will automatically lock with the lock during the charging process to prevent the charging gun from being pulled out during the charging process. After charging is completed, the connection between the charging port of the car and the lock 41 is unlocked. When the charging gun is pulled out, the button 42 can be pressed to drive the lock 41 to unlock and separate from the charging port of the car. There are also other locking methods in the prior art, which will not be described here.

[0028] Furthermore, the portion of the power connection portion 14 located in the heat dissipation cavity 2 is covered with a heat conductive layer, and the heat sinks 211 are evenly distributed on the surface of the heat conductive layer. Specifically, by providing the heat conductive layer, the heat in the power connection portion 14 can be better transferred to the heat sinks 211 through the heat conductive layer, which is more conducive to heat dissipation.

[0029] Working principle: When in use, lift the charging gun and connect the charging head 11 to the charging interface of the car. During this process, the outer wall of the charging interface of the car squeezes the pressing piece 12 at the same time, and the pressing piece 12 slides into the installation cavity 3 and compresses the spring 32. The magnetic push rod 122 gradually moves toward the switch part of the solenoid valve 23, and finally the magnetic push rod 122 contacts the switch of the solenoid valve 23, so that the valve body of the solenoid valve 23 is opened, and the cooling oil is filled into the exchange part 21 through the cold liquid pipe 132 by the oil pump arranged in the charging pile, and each heat sink 211 is immersed in the cooling oil for heat exchange. In exchange, the cooling oil enters the circulation part 22 through the valve body of the solenoid valve 23, and finally returns the cooling oil to the heat dissipation mechanism of the charging pile through the heat exchange pipe for heat dissipation circulation; after charging is completed, the charging gun is taken out, and the pressing part 12 is pushed under the elastic extension action of the spring 32 to make the magnetic push rod 122 away from the switch part of the solenoid valve 23, so that the valve body of the solenoid valve 23 is temporarily closed. After the charging gun is inserted back into the charging pile, the pressing part 12 is squeezed again to open the valve body of the solenoid valve 23, so as to fully dissipate the heat in the charging gun after charging, thereby achieving sufficient heat dissipation in the charging gun during and after use.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A charging gun heat dissipation mechanism, characterized by: The charging gun includes a charging gun and a heat dissipation cavity and an installation cavity arranged in the charging gun. The front end of the charging gun is provided with a charging head and a pressing part, and the rear end is provided with a connecting wire. The rear end of the charging head is provided with a power connection part. The rear end of the pressing part is slidably connected to the installation cavity. The rear end of the pressing part is provided with a driving part. A magnetic push rod is provided on one side of the driving part. An elastic groove is provided in the installation cavity. A spring is provided in the elastic groove. The spring abuts against the driving part. The heat dissipation cavity includes an exchange part, a circulation part and a solenoid valve. A plurality of heat dissipation fins are provided in the exchange part. The valve body of the solenoid valve is used to connect the exchange part and the circulation part. The switch part of the solenoid valve is arranged in the installation cavity through the heat dissipation cavity. The magnetic push rod is magnetically matched with the switch part of the solenoid valve. The connecting wire includes an outer skin and a cold liquid pipe, a liquid exchange pipe and a power cord arranged in the outer skin. The cold liquid pipe is used to input cooling liquid into the exchange part, the liquid exchange pipe is used to output the cooling liquid in the circulation part, and the power cord is used to achieve connection with the power connection part.

2. The heat dissipation mechanism of the charging gun according to claim 1, characterized in that: The driving member is further provided with a pushing portion, the pushing portion is fixedly connected to the spring, and the pushing portion is limitedly and slidably connected to the elastic groove.

3. The heat dissipation mechanism of the charging gun according to claim 1, characterized in that: Each of the heat sinks extends toward the inner wall of the exchange portion and abuts against the inner wall of the exchange portion. The inner wall of the exchange portion is provided with a support seat for clamping each of the heat sinks.

4. The heat dissipation mechanism of the charging gun according to claim 1, characterized in that: The heat dissipation cavity further includes a reinforcement layer, and the reinforcement layer is adhered to the exchange portion and the circulation portion.

5. The heat dissipation mechanism of the charging gun according to claim 1, characterized in that: The front end of the installation cavity is provided with a movable opening and a limiting portion, the driving member is slidably connected with the movable opening, the limiting portion is located on one side of the movable opening, and the front side of the driving member is in limiting contact with the inner wall of the limiting portion.

6. The heat dissipation mechanism of the charging gun according to claim 5, characterized in that: The charging gun is provided with a locking mechanism, which includes a lock and a button for unlocking and closing the lock.

7. The heat dissipation mechanism of the charging gun according to claim 1, characterized in that: The portion of the power connection portion located in the heat dissipation cavity is covered with a heat conduction layer, and the heat dissipation fins are evenly distributed on the surface of the heat conduction layer.

Images