New energy automobile charging gun

Abstract

A new energy automobile charging gun comprises a gun handle and a gun nozzle, a high-voltage connecting line, a grounding connecting line, a low-voltage connecting line, a control module and a microswitch are arranged in the gun handle, and a handle is installed outside the gun handle; the gun nozzle is installed on the gun handle, the gun nozzle is sunken inwards to form a connecting cavity, a plurality of charging connecting pipes are arranged in the connecting cavity, a positioning rim is installed below the gun nozzle, and a high-voltage binding post, a control binding post and a grounding binding post are installed on the positioning rim. The high-voltage binding post, the control binding post and the grounding binding post are respectively provided with a first connecting end, a second connecting end and a spacing part, the first connecting end extends into the charging connecting pipe, the spacing part is positioned between the positioning rim and the charging connecting pipe, and the second connecting end is correspondingly connected with the high-voltage connecting line, the grounding connecting line and the low-voltage connecting line. The secondary injection molding design meets the requirements of falling resistance, water resistance, rolling compaction, tensile strength and the like, screws are not needed, wheel rolling compaction is prevented, high sealing is achieved, a copper column milling groove clamp-shaped structure circuit is adopted for connection, and the charging safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to a charging gun for a new energy vehicle. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as a power source, integrate advanced technologies in vehicle power control and drive, and have advanced technical principles, new technologies, and new structures. New energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, and other new energy vehicles. Most of the current new energy vehicles are pure electric. Pure electric vehicles are vehicles that use a single battery as a power source for energy storage. They use batteries as a power source for energy storage, and provide electricity to the motor through the battery to drive the motor to run, thereby driving the vehicle. Therefore, sockets are essential for the charging process of pure electric vehicles, and the vehicle needs to be charged regularly.

[0003] The common charging methods for existing new energy vehicles are charging piles and portable chargers. Charging with charging piles needs to be done at designated locations, while charging with portable chargers can be done at any location. Regardless of the method, a dedicated charging gun is required for charging. Since the voltage and current of new energy vehicles are relatively large, how to arrange a large number of components in a cramped space to ensure the safety and convenience of the charging gun is a problem that needs to be solved. Summary of the invention

[0004] The purpose of the utility model is to improve the safety and convenience of use of a charging gun for new energy vehicles.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a new energy vehicle charging gun, including a gun handle formed by secondary injection molding of PE material, a gun nozzle installed on the gun handle, the interior of the gun handle is provided with a high-voltage connecting wire, a grounding connecting wire, a low-voltage connecting wire, a control module and a micro switch connected to the control module, the outside of the gun handle is rotatably provided with a handle, one end of the handle is supported on the micro switch by a spring, and the other end is provided with a hook; the gun nozzle is recessed inwardly to form a connecting cavity, the interior of the connecting cavity is provided with a plurality of charging connecting tubes, the A positioning wheel ring is installed below the muzzle of the gun, and a high-voltage terminal, a control terminal and a grounding terminal are fixedly installed on the positioning wheel ring. The high-voltage terminal, the control terminal and the grounding terminal respectively have a first connection end, a second connection, and a spacer located between the first connection end and the second connection end. The first connection ends of the high-voltage terminal, the control terminal and the grounding terminal extend into the charging connection tube in the installation cavity, and the second connection ends of the high-voltage terminal, the control terminal and the grounding terminal respectively extend into the gun handle and are correspondingly connected to the high-voltage connection line, the ground connection line and the low-voltage connection line.

[0006] Preferably, a plurality of positioning grooves are provided on the circumference of the positioning rim, and the high-voltage terminal, the control terminal, and the grounding terminal are respectively installed in the corresponding positioning grooves, and the spacing parts of the high-voltage terminal, the control terminal, and the grounding terminal are located between the positioning rim and the charging connection tube.

[0007] Preferably, there are mounting holes between the positioning grooves of the positioning rim, and the positioning rim is connected to the bottom of the gun nozzle by screws passing through the mounting holes. The lower surface of the positioning rim extends downward to form a cover shell, and when the gun nozzle is installed on the gun handle, the cover shell extends into the gun handle and is arranged around the control module.

[0008] Preferably, the control module includes a temperature detection unit, and the control module outputs a control signal to the micro switch according to feedback from the temperature detection unit.

[0009] Preferably, the first ends of the high-voltage terminal, the control terminal and the grounding terminal are formed into a clamp-like structure by milling grooves of copper columns, and the outer parts of the clamp-like structures of the high-voltage terminal and the grounding terminal are provided with clamping rings.

[0010] Preferably, the diameters of the high-voltage terminal and the grounding terminal are larger than the diameter of the control terminal.

[0011] Preferably, a sealing ring is sleeved on the spacer between the high-voltage terminal, the control terminal and the grounding terminal.

[0012] Preferably, the gun nozzle has a downward extension, the side of the gun handle has an opening, the extension extends into the gun handle and is connected to the switch base through the opening, and the micro switch is installed on the switch base.

[0013] Preferably, a gun nozzle liner is provided in the connecting cavity of the gun nozzle, and a sealing ring is sleeved on the gun nozzle liner.

[0014] Due to the adoption of the above technical solution, the new energy vehicle charging gun of the utility model has the following advantages:

[0015] 1. This charging gun adopts secondary injection molding (molding and plastic coating) design to meet the requirements of anti-fall, waterproof, crushing, and tensile resistance;

[0016] 2. This material is made of flame-retardant, high-pressure resistant plastic, screw-free, wheel-proof and highly sealed, making it comfortable to hold and extremely safe to use;

[0017] 3. The connection adopts a copper column milling slot clamp structure, so the use current is above 40A and the withstand voltage is above 500V;

[0018] 4. The circuit design is highly safe, ensuring the safety of charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attached Figure 1 A three-dimensional disassembled diagram of a new energy vehicle charging gun according to the utility model;

[0020] Attached Figure 2 It is a three-dimensional diagram of a new energy vehicle charging gun according to the utility model;

[0021] Attached Figure 3 It is a partially enlarged schematic diagram of a new energy vehicle charging gun according to the utility model;

[0022] Attached Figure 4 The figure is a schematic diagram of the use status of the new energy vehicle charging gun according to the utility model. Implementation

[0023] Hereinafter, the terms used in the specification will be briefly described, and the embodiments will be described in detail. All terms including descriptive terms or technical terms used herein should be interpreted as having meanings understood by those of ordinary skill in the art. However, these terms may have different meanings according to the intentions of those of ordinary skill in the art, precedents, or the emergence of new technologies.

[0024] In addition, some terms can be selected by the applicant, and in this case, the meaning of the selected terms will be described in detail in the detailed description of the embodiment. Therefore, the terms used herein must be defined based on the meaning of the terms together with the description in the entire specification. In addition, when a component "includes" or "contains" an element, unless there is a specific description to the contrary, the component may also include other elements without excluding other elements. In the following description, terms such as "component" and "module" indicate a unit for processing at least one function or operation, wherein the unit and module can be implemented as hardware or software or by combining hardware and software and implemented.

[0025] Embodiments will now be described more fully with reference to the accompanying drawings. However, embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the embodiments to those of ordinary skill in the art. In the following description, well-known functions or structures are not described in detail because they will obscure the embodiments with unnecessary details, and throughout the specification, the same reference numerals in the drawings represent the same or similar elements.

[0026] Attached Figure 1 This is a three-dimensional disassembled diagram of the new energy vehicle charging gun according to the utility model, attached Figure 2 is a three-dimensional diagram of a new energy vehicle charging gun according to the utility model, attached Figure 3 This is a partially enlarged schematic diagram of a new energy vehicle charging gun according to the utility model, Figure 4 Schematic diagram of the use state of the new energy vehicle charging gun according to the utility model. In this embodiment, the new energy vehicle charging gun includes a gun handle 1 and a gun nozzle 2. A gun nozzle liner 5 is arranged in the connection cavity of the gun nozzle 2, and a sealing ring 6 is sleeved on the gun nozzle liner 5.

[0027] The inside of the gun handle 1 is provided with a high voltage connection line 11, a ground connection line 12, a low voltage connection line 13, a control module 14 and a micro switch 15 connected to the control module 14. The outside of the gun handle 1 is rotatably mounted with a handle 4 through a pin 41. One end of the handle 4 is supported on the micro switch 15 through a spring 42, and the other end of the handle 4 has a hook 43. The gun handle 1 is made of PE material for secondary injection molding (molding and plastic coating) to achieve the requirements of anti-fall, waterproof, rolling, tensile resistance, etc. This material is flame-retardant, high-pressure resistant plastic, screw-free, wheel-proof and highly sealed, so that the hand-holding feeling is comfortable and the use safety is particularly high. The control module 14 includes a temperature detection unit, and the control module 14 outputs a control signal to the micro switch 15 according to the feedback of the temperature detection unit.

[0028] The gun nozzle 2 is mounted on the gun handle 1, and the gun nozzle 2 is recessed to form a connection cavity, and a plurality of charging connection tubes 21 are arranged inside the connection cavity. A positioning wheel rim 3 is mounted below the gun nozzle 2, and a high-voltage terminal 31, a control terminal 32, and a grounding terminal 33 are fixedly mounted on the positioning wheel rim 3. The gun nozzle 2 has a downward extension 22, and the side of the gun handle 1 has an opening, and the extension extends into the gun handle 1 and is connected to the switch base 23 through the opening, and the micro switch 15 is mounted on the switch base 23.

[0029] The high-voltage terminal 31, the control terminal 32, and the ground terminal 33 respectively have a first connection end, a second connection, and a spacer between the first connection end and the second connection end. The first ends of the high-voltage terminal 31, the control terminal 32, and the ground terminal 33 are formed into a clamp-like structure by milling a copper column groove, so the use current is above 40A and the withstand voltage is above 500V. The diameter of the high-voltage terminal 31 and the ground terminal 33 is larger than the diameter of the control terminal 32. The outer part of the clamp-like structure of the high-voltage terminal 31 and the ground terminal 33 is sleeved with a clamp ring 34, and the spacer of the high-voltage terminal 31, the control terminal 32, and the ground terminal 33 is sleeved with a sealing ring 35. The second connection end of the high-voltage terminal 31, the control terminal 32, and the ground terminal 33 has a cable slot.

[0030] A plurality of positioning grooves 37 are arranged on the circumference of the positioning wheel 3, and mounting holes 38 are arranged between the positioning grooves 37 of the positioning wheel 3. The positioning wheel 3 is connected to the lower part of the gun nozzle 2 by screws 36 passing through the mounting holes 38. A cover 39 is formed downward on the lower surface of the positioning wheel 3. When the gun nozzle 2 is mounted on the gun handle 1, the cover 39 extends into the gun handle 1 and is sleeved around the control module 14. The circuit design is highly safe, which ensures the safety of charging.

[0031] The high-voltage terminal 31, the control terminal 32, and the grounding terminal 33 are respectively installed in the corresponding positioning grooves 37, and the first connecting ends of the high-voltage terminal 31, the control terminal 32, and the grounding terminal 33 extend into the charging connection tube 21 in the installation cavity. The spacing parts of the high-voltage terminal 31, the control terminal 32, and the grounding terminal 33 are located between the positioning rim 3 and the charging connection tube 21, and the second connecting ends of the high-voltage terminal 31, the control terminal 32, and the grounding terminal 33 extend into the gun handle 1 and are correspondingly connected to the high-voltage connecting line 11, the grounding connecting line 12, and the low-voltage connecting line 13.

[0032] It should be understood that the embodiments described herein should be considered in a descriptive sense only and not for the purpose of limitation. The description of features or aspects within each embodiment should generally be considered applicable to other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope defined by the appended claims.

Claims

1. A new energy vehicle charging gun, characterized in that: The invention comprises a gun handle (1) formed by secondary injection molding of PE material, and a gun nozzle (2) mounted on the gun handle (1); the gun handle (1) has a high-voltage connection line (11), a ground connection line (12), a low-voltage connection line (13), a control module (14), and a micro switch (15) connected to the control module (14); a handle (4) is rotatably mounted on the outside of the gun handle (1); one end of the handle (4) is supported on the micro switch (15) by a spring (42), and the other end is provided with a hook (43); the gun nozzle (2) is recessed inwardly to form a connection cavity, and the connection cavity has a plurality of charging connection tubes (21); a positioning wheel ring (3) is mounted below the gun nozzle (2); and the positioning wheel ring (4) is provided at the bottom of the gun nozzle (2). A high-voltage terminal (31), a control terminal (32), and a grounding terminal (33) are fixedly mounted on the position wheel rim (3). The high-voltage terminal (31), the control terminal (32), and the grounding terminal (33) respectively have a first connection end, a second connection, and a spacing portion located between the first connection end and the second connection end. The first connection ends of the high-voltage terminal (31), the control terminal (32), and the grounding terminal (33) extend into the charging connection tube (21) in the mounting cavity, and the second connection ends of the high-voltage terminal (31), the control terminal (32), and the grounding terminal (33) extend into the gun handle (1) and are correspondingly connected to the high-voltage connection line (11), the grounding connection line (12), and the low-voltage connection line (13).

2. The new energy vehicle charging gun according to claim 1, characterized in that: A plurality of positioning grooves (37) are provided on the circumference of the positioning wheel rim (3); the high-voltage terminal (31), the control terminal (32), and the grounding terminal (33) are respectively installed in corresponding positioning grooves (37); and the spacing portions of the high-voltage terminal (31), the control terminal (32), and the grounding terminal (33) are located between the positioning wheel rim (3) and the charging connection tube (21).

3. The new energy vehicle charging gun according to claim 2 is characterized in that: There are mounting holes (38) between the positioning grooves (37) of the positioning wheel rim (3). The positioning wheel rim (3) is connected to the bottom of the gun nozzle (2) by screws (36) passing through the mounting holes (38). The lower surface of the positioning wheel rim (3) extends downward to form a cover (39). When the gun nozzle (2) is mounted on the gun handle (1), the cover (39) extends into the gun handle (1) and is sleeved around the control module (14).

4. The new energy vehicle charging gun according to claim 3 is characterized in that: The control module (14) comprises a temperature detection unit, and the control module (14) outputs a control signal to the micro switch (15) according to feedback from the temperature detection unit.

5. The new energy vehicle charging gun according to claim 1, characterized in that: The first ends of the high-voltage terminal (31), the control terminal (32), and the grounding terminal (33) are formed into a clamp-like structure by milling a copper column groove, and the outer parts of the clamp-like structures of the high-voltage terminal (31) and the grounding terminal (33) are provided with a clamping ring (34).

6. The new energy vehicle charging gun according to claim 5, characterized in that: The diameters of the high-voltage terminal (31) and the grounding terminal (33) are greater than the diameter of the control terminal (32).

7. The new energy vehicle charging gun according to claim 5, characterized in that: A sealing ring (35) is sleeved on the spaced apart portions of the high-voltage terminal (31), the control terminal (32), and the ground terminal (33).

8. The new energy vehicle charging gun according to claim 1, characterized in that: The gun mouth (2) has a downward extension (22), and the side of the gun handle (1) has an opening. The extension (22) extends into the gun handle (1) and is connected to the switch base (23) through the opening. The micro switch (15) is mounted on the switch base (23).

9. The new energy vehicle charging gun according to claim 1, characterized in that: A gun nozzle liner (5) is arranged in the connection cavity of the gun nozzle (2), and a sealing ring (6) is sleeved on the gun nozzle liner (5).

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