NACS / CCS1 adapter

Abstract

The invention discloses an NACS / CCS1 adapter which comprises a gun head shell, a shell installed on the gun head shell, a first locking unit and a second locking unit, the gun head shell is provided with a first connecting end used for being connected with a charging gun, the shell is provided with a second connecting end used for being connected with a charging base, and the first locking unit and the second locking unit are arranged on the gun head shell. The first locking unit is configured to be locked with the charging gun when the charging gun is connected to the first connecting end, and the second locking unit is configured to be locked with the charging seat when the charging seat is connected to the second connecting end. The NACS / CCS1 adapter provided by the invention has a dual locking structure, can effectively ensure firm locking force under separation force in the use process, and ensures the use safety in the charging process.

Description

Technical Field

[0001] The invention relates to a NACS / CCS1 adapter. Background Art

[0002] New energy electric vehicles are cars that use a single battery as a power source for energy storage. They use batteries as a power source for energy storage, provide electricity to the motor through the battery, drive the motor to run, and thus drive the car. With the popularity of new energy vehicles around the world, the supporting charging facilities have become an urgent problem to be solved. At present, there are five main charging interface standards in the world, namely: China's national standard GB / T, CCS1 American standard (combo / Type1), CCS2 European standard (combo / Type2), Japanese standard CHAdeMO, and Tesla has its own independent set of charging interface standards. In addition, each country has two charging technologies: AC charging technology AC (Alternating Current) (commonly known as slow charging) and DC charging technology DC (Direct Current) (commonly known as fast charging). In the US market, the US national standard fast charging adopts the CCS1 interface standard, and Tesla fast charging is Tesla's independent interface standard. Because the specifications of Tesla's charging port and the US DC charging port (CCS1) are different, Tesla cannot be charged directly. As it is now, Tesla users need to purchase two adapters, the J1772 to Tesla AC adapter and the CCS1 to Tesla DC adapter, respectively, in order to use the US national standard AC charging pile or national standard DC charging pile.

[0003] The invention patent application with publication number CN117832901A discloses a new energy vehicle DC charging converter, including a main shell, a gun nozzle installed at the lower end of the main shell, the upper end of the main shell has a first connection end, the lower end of the gun nozzle has a second connection end, the interior of the main shell is provided with a positioning rim, and a positioning frame located below the positioning rim, the positioning frame is provided with a mounting end, the first control adapter column and the first adapter ends of the second control adapter column are respectively installed on the positioning rim, a control module is provided below the positioning rim, the control module has a first input end, a second input end, a first output end, and a second output end, the lower ends of the first adapter ends of the first control adapter column and the second control adapter column are respectively connected to the first connection input end and the second input end, the second adapter ends of the first control adapter column and the second control adapter column are respectively installed on the mounting end and are respectively connected to the first output end and the second output end. This patent application is for the company's first generation of products. In this generation of products, a second handle is rotatably mounted on the outside of the main housing through a second pin. The upper end of the second handle has a second hook, and the lower end of the second handle is supported on the housing through a second spring. However, users found that this structure has defects during use. Although the second hook uses the second spring to fasten the connection end through a lever structure, once a slight separation force is applied, this connection structure will easily disengage. Since the voltage and current of new energy vehicles are relatively large, the above defects are problems that need to be solved for charging safety. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a NACS / CCS1 adapter that provides a stable and safe connection during charging.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a NACS / CCS1 adapter, comprising a gun head shell, a shell mounted on the gun head shell, and a first locking unit and a second locking unit, the gun head shell having a first connecting end for connecting to a charging gun, the shell having a second connecting end for connecting to a charging base, the first locking unit being configured to be locked together with the charging gun when the charging gun is connected to the first connecting end, and the second locking unit being configured to be locked together with the charging base when the charging base is connected to the second connecting end.

[0006] Preferably, the first locking unit includes a first handle mounted on the gun head shell, and a cover mounted on the first handle, the middle part of the first handle is rotatably mounted on the gun head shell by a first pin, one end of the first handle forms a first pressing portion, the lower part of the first pressing portion is elastically supported on the gun head shell by a first spring, a locking tongue is installed on the other end of the first handle, and an opening is provided at the corresponding position of the gun head shell, and the upper part of the locking tongue and the cover are elastically supported by a second spring so that the locking tongue passes through the opening and extends into the first connecting end to be locked with the charging gun.

[0007] Preferably, the locking tongue is rotatably connected to the end of the first handle, and both ends of the first pin are connected to the cover.

[0008] Preferably, the second locking unit includes a second handle mounted on the gun head shell, a middle portion of the second handle is rotatably mounted on the gun head shell via a second pin, one end of the second handle forms a second pressing portion, the other end of the second handle has a hook, and the second pressing portion and the gun head shell are elastically supported by a third spring so that the hook is locked together with the charging base.

[0009] Preferably, a pair of high-voltage transfer terminals, a pair of control transfer terminals, and a ground transfer terminal are arranged between the gun head shell and the shell, and the high-voltage transfer terminal, the control transfer terminal, and the ground transfer terminal respectively have a first transfer end and a second transfer end, the first transfer end extends into the first connection end of the gun head shell, and the second connection end extends into the second connection end of the shell, wherein the first transfer end and the second transfer end of each high-voltage transfer terminal are connected through a copper plate, the first transfer end is installed on one side surface of one end of the copper plate, and the second transfer end is installed on the other side surface of the other end of the copper plate, and the copper plates are spaced apart from each other and cross-positioned and installed on the shell.

[0010] Preferably, the second transfer ends of the high-voltage transfer terminal and the ground transfer terminal are respectively formed of a clamp-like structure by milling a silver-plated copper column.

[0011] Preferably, a rubber-coated circuit board is arranged between the gun head shell and the shell, and the rubber-coated circuit board is positioned and installed between the shell and the copper plate. The control adapter terminal and the ground adapter terminal pass through between the copper plates and are connected to the rubber-coated circuit board. The rubber-coated circuit board has a temperature control unit, and the control unit is configured to output a control signal according to the charging temperature.

[0012] Preferably, a micro switch is provided on the rubber-coated circuit board, and the hook of the second handle is elastically pressed on the micro switch. When the second pressing portion is pressed, the control unit outputs a closing control signal.

[0013] Preferably, a gun head liner is installed in the second connecting end of the shell, and a gun head sealing ring is provided between the shell and the gun head liner.

[0014] Preferably, a sealing ring is provided at the edge of the gun head shell, and the gun head shell and the shell are connected by a self-locking connecting rod and then sealed by ultrasonic welding.

[0015] Due to the adoption of the above technical solution, the NACS / CCS1 adapter of the present invention has a double locking structure, which can effectively ensure a firm locking force under the separation force during use, thereby ensuring the safety of use during the charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 is a perspective view of a NACS / CCS1 adapter according to the present invention; Attached Figure 2 A three-dimensional exploded view of a NACS / CCS1 adapter according to the present invention; Attached Figure 3 A working principle diagram of the first locking unit of the NACS / CCS1 adapter according to the present invention; Attached Figure 4 FIG. 4 is a circuit diagram of a temperature control unit of a NACS / CCS1 adapter according to the present invention. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] 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.

[0020] Attached Figure 1 is a three-dimensional diagram of a NACS / CCS1 adapter according to the present invention; Figure 2 It is a three-dimensional exploded diagram of the NACS / CCS1 adapter according to the present invention. The NACS / CCS1 adapter in this embodiment includes a gun head shell 1, a shell 2 installed on the gun head shell 1, and a first locking unit and a second locking unit. A sealing ring 19 is provided at the edge of the gun head shell 1. The gun head shell 1 and the shell 2 are connected by a self-locking connecting rod 20 and sealed by ultrasonic welding. The overall material adopts flame-retardant and high-pressure resistant engineering plastics to achieve the safety level. The gun head shell 1 has a first connecting end for connecting to a charging gun, and the shell 2 has a second connecting end for connecting to a charging base. A gun head liner 17 is installed in the second connecting end of the shell 2, and a gun head sealing ring 18 is provided between the shell 2 and the gun head liner 17.

[0021] The first locking unit is configured to lock with the charging gun when the charging gun is connected to the first connection end. The first locking unit includes a first handle 3 mounted on the gun head housing 1, and a cover 4 mounted on the first handle 3. The middle part of the first handle 3 is rotatably mounted on the gun head housing 1 through a first pin 5, and both ends of the first pin 5 are connected to the cover 4.

[0022] The second locking unit is configured to be locked with the charging base when the charging base is connected to the second connection end. The second locking unit includes a second handle 8 mounted on the gun head housing 1, the middle part of the second handle 8 is rotatably mounted on the gun head housing 1 through a second pin 9, one end of the second handle 8 forms a second pressing portion 81, and the other end of the second handle 8 has a hook 82, and the second pressing portion 81 and the gun head housing 1 are elastically supported by a third spring 10 so that the hook 82 is locked with the charging base.

[0023] A pair of high-voltage transfer terminals 11, a pair of control transfer terminals 12, and a ground transfer terminal 13 are arranged between the gun head shell 1 and the shell 2. The high-voltage transfer terminal 11, the control transfer terminal 12, and the ground transfer terminal 13 respectively have a first transfer end and a second transfer end. The first transfer end extends into the first connecting end of the gun head shell 1, and the second connecting end extends into the second connecting end of the shell 2. The first transfer end and the second transfer end of each high-voltage transfer terminal 11 are connected through a copper plate 14. The first transfer end is installed on one side surface of one end of the copper plate 14, and the second transfer end is installed on the other side surface of the other end of the copper plate 14. The copper plates 14 are spaced apart from each other and are cross-positioned and installed on the shell 2.

[0024] The second transfer ends of the high-voltage transfer terminal 11 and the ground transfer terminal 13 are respectively formed of a clamp-like structure by milling grooves through a silver-plated copper column. The terminal interface adopts a milling groove to form a clamp-like contact to ensure good contact and prevent overheating caused by false contact; the diameter of the high-voltage transfer terminal 11 and the ground transfer terminal 13 is larger than the diameter of the control transfer terminal 12, and the middle of the high-voltage transfer terminal 11 and the ground transfer terminal 13 are respectively sleeved with rubber rings, and the conversion conductor uses a copper cylinder to increase the use of current and reduce the disadvantages of overheating caused by the wire.

[0025] A rubber-coated circuit board 15 is provided between the gun head shell 1 and the shell 2, and the outside is rubber-coated to achieve a sealing effect. The rubber-coated circuit board 15 is positioned and installed between the shell 2 and the copper plate 14. The control adapter terminal 12 and the ground adapter terminal 13 pass through between the copper plates 14 and are connected to the rubber-coated circuit board 15. The rubber-coated circuit board 15 has a temperature control unit, and the control unit is configured to output a control signal according to the charging temperature. A micro switch 16 is provided on the rubber-coated circuit board 15, and the hook 82 of the second handle 8 is elastically pressed on the micro switch 16. When the second pressing part 81 is pressed, the control unit outputs a closing control signal.

[0026] Attached Figure 3The figure is a working principle diagram of the first locking unit of the NACS / CCS1 adapter according to the present invention. A first pressing portion 31 is formed at one end of the first handle 3, and the lower part of the first pressing portion 31 is elastically supported on the gun head shell 1 by the first spring 6. A locking tongue 32 is installed at the other end of the first handle 3, and the locking tongue 32 is rotatably connected to the end of the first handle 3. The corresponding position of the gun head shell 1 has an opening. The upper part of the locking tongue 32 and the cover 4 are elastically supported by the second spring 7 so that the locking tongue 32 passes through the opening and extends into the first connecting end to lock with the charging gun. The double locking structure of the first spring 6 and the second spring 7 can effectively ensure a firm locking force under the separation force during use. Only when the first pressing portion 31 presses and compresses the first spring 6, the second spring 7 is also compressed under the action of the lever, and the locking tongue 32 can be retracted, thereby ensuring the safety of use during the charging process. Since the locking tongue 32 is rotatably connected to the first handle 3, the locking tongue 32 can always be kept in the vertical direction during the process of extending into or moving out of the opening, thereby ensuring the stability of the locking.

[0027] Attached Figure 4 The circuit diagram of the temperature control unit of the NACS / CCS1 adapter according to the present invention. A 330-ohm resistor is connected in series to the control transfer terminal PP, and a temperature-sensitive switch normally closed at 85°C and a normally closed switch (micro switch 16) are connected in parallel to the resistor. In addition, a 330-ohm resistor and a temperature-sensitive switch normally open at 85°C are connected in series between the control transfer terminal PP and the ground transfer terminal PE. In this way, when charging starts, a fast charge signal is output when the temperature is lower than 85°C, and a slow charge signal is output when the temperature is greater than 85°C. In addition, a circuit breaker signal can be output as needed.

[0028] 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 NACS / CCS1 adapter, characterized in that: The invention comprises a gun head shell (1), a shell (2) mounted on the gun head shell (1), and a first locking unit and a second locking unit, wherein the gun head shell (1) has a first connection end for connecting to a charging gun, and the shell (2) has a second connection end for connecting to a charging base, and the first locking unit is configured to be locked together with the charging gun when the charging gun is connected to the first connection end, and the second locking unit is configured to be locked together with the charging base when the charging base is connected to the second connection end.

2. The NACS / CCS1 adapter according to claim 1, characterized in that: The first locking unit comprises a first handle (3) mounted on a gun head shell (1), and a cover (4) mounted on the first handle (3); the middle portion of the first handle (3) is rotatably mounted on the gun head shell (1) via a first pin (5); one end of the first handle (3) forms a first pressing portion (31); the lower portion of the first pressing portion (31) is elastically supported on the gun head shell (1) via a first spring (6); a locking tongue (32) is mounted on the other end of the first handle (3); a corresponding position of the gun head shell (1) has an opening; the upper portion of the locking tongue (32) and the cover (4) are elastically supported via a second spring (7) so that the locking tongue (32) passes through the opening and extends into the first connecting end to be locked with the charging gun.

3. The NACS / CCS1 adapter according to claim 2, characterized in that: The locking tongue (32) is rotatably connected to the end of the first handle (3), and both ends of the first pin (5) are connected to the cover (4).

4. The NACS / CCS1 adapter according to claim 1, characterized in that: The second locking unit comprises a second handle (8) mounted on the gun head shell (1); the middle portion of the second handle (8) is rotatably mounted on the gun head shell (1) via a second pin (9); one end of the second handle (8) forms a second pressing portion (81); the other end of the second handle (8) has a hook (82); the second pressing portion (81) and the gun head shell (1) are elastically supported by a third spring (10) so that the hook (82) is locked together with the charging base.

5. The NACS / CCS1 adapter according to claim 1, characterized in that: A pair of high-voltage transfer terminals (11), a pair of control transfer terminals (12), and a ground transfer terminal (13) are arranged between the gun head shell (1) and the shell (2); the high-voltage transfer terminal (11), the control transfer terminal (12), and the ground transfer terminal (13) respectively have a first transfer end and a second transfer end; the first transfer end extends into the first connection end of the gun head shell (1), and the second connection end extends into the second connection end of the shell (2); wherein the first transfer end and the second transfer end of each high-voltage transfer terminal (11) are connected via a copper plate (14); the first transfer end is mounted on a side surface of one end of the copper plate (14), and the second transfer end is mounted on the other side surface of the other end of the copper plate (14); and the copper plates (14) are spaced from each other and are positioned crosswise on the shell (2).

6. The NACS / CCS1 adapter according to claim 5, characterized in that: The second transfer ends of the high-voltage transfer terminal (11) and the ground transfer terminal (13) are respectively formed of a silver-plated copper column through a milling groove to form a clamp-like structure.

7. The NACS / CCS1 adapter according to claim 5, characterized in that: A rubber-coated circuit board (15) is arranged between the gun head shell (1) and the shell (2); the rubber-coated circuit board (15) is positioned and installed between the shell (2) and the copper plate (14); the control adapter terminal (12) and the ground adapter terminal (13) pass through between the copper plates (14) and are connected to the rubber-coated circuit board (15); the rubber-coated circuit board (15) has a temperature control unit; and the control unit is configured to output a control signal according to a charging temperature.

8. The NACS / CCS1 adapter according to claim 7, characterized in that: A micro switch (16) is provided on the rubber-coated circuit board (15), and the hook (82) of the second handle (8) is elastically pressed against the micro switch (16). When the second pressing portion (81) is pressed, the control unit outputs a closing control signal.

9. The NACS / CCS1 adapter according to claim 1, characterized in that: A gun head liner (17) is installed in the second connecting end of the outer shell (2), and a gun head sealing ring (18) is provided between the outer shell (2) and the gun head liner (17).

10. The NACS / CCS1 adapter according to claim 1, characterized in that: The edge of the gun head shell (1) is provided with a sealing ring (19), and the gun head shell (1) and the shell (2) are connected via a self-locking connecting rod (20) and then sealed by ultrasonic welding.

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