Gun head for new energy charging gun

Abstract

The utility model discloses a gun head for a new energy charging gun, which relates to the technical field of new energy automobile charging guns, and comprises a first shell, two ends of the first shell are respectively connected with a charging terminal and a handle, a terminal assembly is arranged in the first shell, the terminal assembly is connected with the charging terminal, and the handle is connected with the charging terminal. A first spiral tube and a second spiral tube are wound outside the terminal assembly; according to the utility model, through adjusting the gaps between the first spiral pipe and the second spiral pipe through which the cooling liquid passes and the terminal assembly and the pipeline arrangement density of the first spiral pipe and the second spiral pipe, the heat dissipation efficiency of different heating areas in the charging gun is improved, and the charging gun can be ensured to always keep a proper working temperature in the charging process.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle charging guns, in particular to a gun head for a new energy vehicle charging gun. Background Art

[0002] Nowadays, the market demand for new energy electric vehicles is constantly expanding, and the demand for charging guns is also increasing. When the existing charging gun is connected to an electric car for charging, the gun head of the charging gun is plugged into the charging port of the charging car. At this time, the charging terminal of the gun head is connected to the docking terminal of the electric car for charging. The charging terminal of the charging gun head will generate heat when connected to the docking terminal of the electric car for charging. This heat will cause the temperature of the charging gun to rise. The temperature rise and heating phenomenon of the fast charging gun head is more obvious, and there is a charging safety hazard. Utility Model Content

[0003] 1) Technical issues solved

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a gun head for a new energy charging gun.

[0005] 2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gun head for a new energy charging gun, comprising a first shell, wherein the two ends of the first shell are respectively connected to a charging terminal and a handle, a terminal assembly is arranged in the first shell, the terminal assembly is connected to the charging terminal, a first spiral tube and a second spiral tube are surrounded by the outside of the terminal assembly, and the first spiral tube and the second spiral tube are connected, wherein:

[0007] From the charging terminal toward the handle, the shortest distance between the spiral inner wall of the first spiral tube and the outer wall of the terminal assembly gradually decreases, and the shortest distance between the spiral inner wall of the second spiral tube and the outer wall of the terminal assembly gradually decreases.

[0008] Furthermore, in a direction from the charging terminal toward the handle, on the same horizontal plane, the shortest distance between two adjacent tubes of the first spiral tube gradually increases, and the shortest distance between two adjacent tubes of the second spiral tube gradually increases.

[0009] Furthermore, one end of the first spiral tube and the second spiral tube close to the charging terminal is connected to a liquid inlet pipe, and the liquid inlet pipe is located above the terminal assembly.

[0010] Furthermore, one end of the first spiral tube and the second spiral tube close to the handle is connected to a liquid outlet pipe, and the liquid outlet pipe is located below the terminal assembly.

[0011] Furthermore, a second shell is provided on one side of the first shell connected to the handle, and the charging cable passes through the second shell and is connected to the terminal assembly.

[0012] Furthermore, a first pipe and a second pipe are provided inside the second shell, the first pipe is communicated with the liquid inlet pipe, and the second pipe is communicated with the liquid outlet pipe.

[0013] 3) Beneficial effects:

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model improves the heat dissipation efficiency of different heating areas in the charging gun by adjusting the gap between the first spiral tube and the second spiral tube through which the coolant passes and the terminal assembly, as well as the pipe arrangement density of the first spiral tube and the second spiral tube, thereby helping to ensure that the charging gun always maintains a suitable operating temperature during the charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a three-dimensional partial cross-sectional view of the utility model;

[0018] Figure 3 It is a partial cross-sectional view of the front view of the utility model;

[0019] In the figure: 1. first shell; 2. second shell; 3. charging cable; 4. charging terminal; 5. handle; 6. terminal assembly; 7. liquid inlet pipe; 8. liquid outlet pipe; 9. first spiral tube; 10. second spiral tube; 11. first pipeline; 12. second pipeline. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] Combination Figures 1 to 3 A new energy charging gun head shown includes a first shell 1. The first shell 1 serves as the outer shell of the charging gun head, which is used to protect internal components and provide an operating handle. The two ends of the first shell 1 are respectively connected to a charging terminal 4 and a handle 5. The charging terminal 4 is connected to a component of the electric vehicle charging interface for transmitting electrical energy. The handle 5 is used to hold and operate the charging gun. A terminal assembly 6 is arranged in the first shell 1. The terminal assembly 6 is connected to the charging terminal 4. The terminal component refers to a component connecting the charging terminal 4 and other components for transmitting electrical energy. The terminal assembly 6 is surrounded by a first spiral tube 9 and a second spiral tube 10, and the first spiral tube 9 and the second spiral tube 10 are connected. The first spiral tube 9 and the second spiral tube 10 are used to pass coolant for cooling treatment.

[0023] Specifically, Figure 2 and Figure 3 As shown, the first spiral tube 9 and the second spiral tube 10 are connected to the liquid inlet tube 7 located above the terminal assembly 6, so as to introduce the coolant into the first spiral tube 9 and the second spiral tube 10, wherein the connection point between the liquid inlet tube 7 and the two spiral tubes is located at one end close to the charging terminal 4, that is, the coolant is introduced from the spiral tube close to the charging terminal 4.

[0024] like Figure 2 and Figure 3 As shown, the first spiral tube 9 and the second spiral tube 10 are connected to the liquid outlet pipe 8 located below the terminal assembly 6, and the connection point between the liquid outlet pipe 8 and the first spiral tube 9 and the second spiral tube 10 is located at the end close to the handle 5, that is, the coolant enters from the top of the first spiral tube 9 and the second spiral tube 10 near the charging terminal 4, and exits from the bottom thereof near the handle 5.

[0025] like Figure 2 and Figure 3As shown, from the charging terminal 4 toward the handle 5, the shortest distance between the spiral inner wall of the first spiral tube 9 and the outer wall of the terminal assembly 6 gradually decreases, and the shortest distance between the spiral inner wall of the second spiral tube 10 and the outer wall of the terminal assembly 6 gradually decreases, that is, the closer to the handle 5, the closer the first spiral tube 9 and the second spiral tube 10 surrounding the terminal assembly 6 are, the closer the gap between their spiral tube walls and the terminal components becomes.

[0026] In the above structure, in the liquid cooling system composed of the first spiral tube 9 and the second spiral tube 10, the flow of the cooling liquid is affected by gravity. By gradually reducing the distance between the spiral tube and the terminal assembly 6, the gravity resistance encountered by the liquid during the flow is relatively small, which means that the liquid can more easily overcome gravity and flow, reducing the flow resistance and helping to maintain a stable flow rate.

[0027] like Figure 3 As shown, in the direction from the charging terminal 4 toward the handle 5, on the same horizontal plane, the shortest distance between two adjacent tubes of the first spiral tube 9 gradually increases, and the shortest distance between two adjacent tubes of the second spiral tube 10 gradually increases, that is, near the charging terminal 4, the spiral pipes of the first spiral tube 9 are densely arranged, and the spiral pipes of the second spiral tube 10 are densely arranged, and the closer to the handle 5, the sparser the spiral pipes of the first spiral tube 9 are, and the sparser the spiral pipes of the second spiral tube 10 are.

[0028] In the above structure, because the heat generated by the charging terminal 4 is higher than that of other areas of the charging gun when the charging terminal 4 is plugged into the charging port of the electric vehicle to charge the vehicle, attention should be paid to the heat dissipation and cooling efficiency near the charging terminal 4. The first spiral tube 9 and the second spiral tube 10 are densely arranged at the charging terminal 4 and can quickly absorb heat, which helps to quickly transfer heat to the coolant and ensure that heat does not accumulate around the charging terminal 4, thereby effectively preventing overheating. As the spiral tubes are arranged more sparsely toward the handle 5, the coolant has more time and surface area to contact the heat source, thereby improving the heat dissipation efficiency and ensuring that the system remains within a suitable operating temperature range. By optimizing the arrangement density, the heat dissipation efficiency of different heating areas in the charging gun is improved, which helps to ensure that the charging gun always maintains a suitable operating temperature during the charging process.

[0029] like Figure 2 and Figure 3 As shown, a second shell 2 is provided on one side of the first shell 1 connected to a handle 5. In some embodiments, a charging cable 3 passes through the second shell 2 and is connected to a terminal assembly 6 for transmitting electrical energy.

[0030] like Figure 2 and Figure 3As shown, a first pipe 11 and a second pipe 12 are provided inside the second shell 2, the first pipe 11 is connected to the liquid inlet pipe 7, and the second pipe 12 is connected to the liquid outlet pipe 8. In some embodiments, a coolant pump is installed inside the charging pile, and the cooling pump is connected to the first pipe 11 and the second pipe 12 in the second shell 2. The coolant is introduced into the liquid inlet pipe 7 through the first pipe 11, and the liquid is returned to the cooling pump through the second pipe 12 connected to the liquid outlet pipe 8.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gun head for a new energy charging gun, comprising a first shell (1), wherein two ends of the first shell (1) are respectively connected to a charging terminal (4) and a handle (5), a terminal assembly (6) is arranged in the first shell (1), and the terminal assembly (6) is connected to the charging terminal (4), characterized in that: The terminal assembly (6) is surrounded by a first spiral tube (9) and a second spiral tube (10), and the first spiral tube (9) and the second spiral tube (10) are connected, wherein: From the charging terminal (4) toward the handle (5), the shortest distance between the spiral inner wall of the first spiral tube (9) and the outer wall of the terminal assembly (6) gradually decreases, and the shortest distance between the spiral inner wall of the second spiral tube (10) and the outer wall of the terminal assembly (6) gradually decreases.

2. A gun head for a new energy charging gun according to claim 1, characterized in that: From the direction of the charging terminal (4) toward the handle (5), on the same horizontal plane, the shortest distance between two adjacent tubes of the first spiral tube (9) gradually increases, and the shortest distance between two adjacent tubes of the second spiral tube (10) gradually increases.

3. A gun head for a new energy charging gun according to claim 2, characterized in that: One end of the first spiral tube (9) and the second spiral tube (10) close to the charging terminal (4) is connected to a liquid inlet tube (7), and the liquid inlet tube (7) is located above the terminal assembly (6).

4. A gun head for a new energy charging gun according to claim 3, characterized in that: One end of the first spiral tube (9) and the second spiral tube (10) close to the handle (5) is connected to a liquid outlet pipe (8), and the liquid outlet pipe (8) is located below the terminal assembly (6).

5. A gun head for a new energy charging gun according to claim 4, characterized in that: A second housing (2) is provided on one side of the first housing (1) connected to the handle (5), and a charging cable (3) passes through the second housing (2) and is connected to the terminal assembly (6).

6. A gun head for a new energy charging gun according to claim 5, characterized in that: A first pipe (11) and a second pipe (12) are provided inside the second shell (2); the first pipe (11) is connected to the liquid inlet pipe (7), and the second pipe (12) is connected to the liquid outlet pipe (8).

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