NACS / J1772 adapter

Abstract

The invention discloses an NACS / J1772 adapter which comprises a shell base, a shell installed on the shell base, a first locking unit and a second locking unit, the shell base 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 shell base. 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 / J1772 adapter disclosed by the invention has a dual locking structure, so that firm locking force under separating force in a use process can be effectively ensured, and the use safety in a charging process is ensured.

Description

Technical Field

[0001] The invention relates to a NACS / J1772 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 an AC charging converter for new energy vehicles, 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 / J1772 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 / J1772 adapter, comprising a shell base, a shell mounted on the shell base, and a first locking unit and a second locking unit, the shell base having a first connection end for connecting to a charging gun, the shell having a second connection end for connecting to the charging base, the first locking unit being configured to lock together with the charging gun when the charging gun is connected to the first connection end, and the second locking unit being configured to lock together with the charging base when the charging base is connected to the second connection end.

[0006] Preferably, the first locking unit includes a positioning seat installed on the outer shell seat, a first handle installed on the positioning seat, and a cover installed on the first handle. The middle part of the first handle is rotatably mounted on the positioning seat through a first pin. One end of the first handle forms a first pressing portion, and the lower part of the first pressing portion is elastically supported on the positioning seat by a first spring. A locking tongue is installed on the other end of the first handle. The corresponding position of the positioning seat has an opening, 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 a guide plate extending in a vertical direction is provided at the opening, and the locking tongue extends into or moves out of the opening along the guide plate.

[0008] Preferably, both ends of the first pin are connected to the cover.

[0009] Preferably, the second locking unit includes a second handle mounted on the outer shell base, the middle part of the second handle is rotatably mounted on the outer shell base through 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 pin is sleeved with a torsion spring to lock the hook and the charging base together.

[0010] Preferably, a pair of high-voltage transfer terminals, a pair of control transfer terminals, and a ground transfer terminal are arranged between the shell seat 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 shell seat, and the second connection end extends into the second connection end of the shell.

[0011] 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.

[0012] Preferably, a rubber-coated circuit board is arranged between the shell seat and the shell, the high-voltage transfer terminal and the grounding transfer terminal pass through the hollow part of the rubber-coated circuit board, the control transfer terminal is connected to the rubber-coated circuit board, and the rubber-coated circuit board has a control unit, and the control unit is configured to output a control signal according to the input signal of the control transfer terminal.

[0013] 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.

[0014] 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.

[0015] Due to the adoption of the above technical solution, the NACS / J1772 adapter of the present invention has a double locking structure, which can effectively ensure a firm locking force under a separation force during use, thereby ensuring safety during charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Attached Figure 1 A perspective view of the NACS / J1772 adapter according to the present invention; Attached Figure 2 A three-dimensional exploded view of a NACS / J1772 adapter according to the present invention; Attached Figure 3 A perspective view of a first locking unit of a NACS / J1772 adapter according to the present invention; Attached Figure 4 FIG. 4 is a working principle diagram of the first locking unit of the NACS / J1772 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 perspective view of a NACS / J1772 adapter according to the present invention, Figure 2 It is a three-dimensional exploded diagram of the NACS / J1772 adapter according to the present invention. The NACS / J1772 adapter in this embodiment includes a shell base 1, a shell 2 installed on the shell base 1, and a first locking unit and a second locking unit. The shell base 1 and the shell 2 are fixed by self-locking screws 18, and the overall material adopts flame-retardant and high-pressure resistant engineering plastics to achieve the safety level. The shell base 1 has a first connecting end for connecting to the charging gun, and the shell 2 has a second connecting end for connecting to the charging base. A gun head liner 16 is installed in the second connecting end of the shell 2, and a gun head sealing ring 17 is arranged between the shell 2 and the gun head liner 16.

[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 positioning seat 3 mounted on the housing seat 1, a first handle 4 mounted on the positioning seat 3, and a cover 5 mounted on the first handle 4. The positioning seat 3 is mounted on the housing seat 1 through a plurality of locking pins 19. The middle part of the first handle 4 is rotatably mounted on the positioning seat 3 through a first pin 6. Both ends of the first pin 6 are connected to the cover 5.

[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 9 mounted on the housing base 1, the middle part of the second handle 9 is rotatably mounted on the housing base 1 through a second pin 10, one end of the second handle 9 forms a second pressing portion 91, and the other end of the second handle 9 has a hook 92, and the second pin 10 is sleeved with a torsion spring 11 to lock the hook 92 with the charging base.

[0023] A pair of high-voltage transfer terminals 12, a pair of control transfer terminals 13, and a ground transfer terminal 14 are arranged between the housing seat 1 and the housing 2. The high-voltage transfer terminal 12, the control transfer terminal 13, and the ground transfer terminal 14 respectively have a first transfer end and a second transfer end. The first transfer end extends into the first connection end of the housing seat 1, and the second connection end extends into the second connection end of the housing 2. The second transfer ends of the high-voltage transfer terminal 12 and the ground transfer terminal 14 are respectively formed of a clamp-like structure by milling a copper silver-plated column, and 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 12 and the ground transfer terminal 14 is larger than the diameter of the control transfer terminal 13, and the middle of the high-voltage transfer terminal 12 and the ground transfer terminal 14 are respectively sleeved with a rubber ring 20, and the conversion conductor adopts a copper cylinder to increase the use current and reduce the disadvantages of overheating caused by the wire.

[0024] A rubber-coated circuit board 15 is arranged between the housing seat 1 and the housing 2, and the outside is rubber-coated to achieve a sealing effect. The high-voltage transfer terminal 12 and the grounding transfer terminal 14 pass through the hollow part of the rubber-coated circuit board 15, and the control transfer terminal 13 is connected to the rubber-coated circuit board 15. The rubber-coated circuit board 15 has a control unit, and the control unit is configured to output a control signal according to the input signal of the control transfer terminal 13. A micro switch 16 is arranged on the rubber-coated circuit board 15, and the hook 92 of the second handle 9 is elastically pressed on the micro switch 16. When the second pressing part 91 is pressed, the control unit outputs a closing control signal.

[0025] Attached Figure 3 is a perspective view of the first locking unit of the NACS / J1772 adapter according to the present invention; Figure 4 The figure is a working principle diagram of the first locking unit of the NACS / J1772 adapter according to the present invention. A first pressing portion 41 is formed at one end of the first handle 4, and the lower part of the first pressing portion 41 is elastically supported on the positioning seat 3 by the first spring 7. A locking tongue 42 is installed at the other end of the first handle 4, and the locking tongue 42 is rotatably connected to the end of the first handle 4. The corresponding position of the positioning seat 3 has an opening 31. The upper part of the locking tongue 42 and the cover 5 are elastically supported by the second spring 8 so that the locking tongue 42 passes through the opening 31 and extends into the first connecting end to be locked with the charging gun. The double locking structure of the first spring 7 and the second spring 8 can effectively ensure a firm locking force under the separation force during use. Only when the first pressing portion 41 presses and compresses the first spring 7, the second spring 8 is also compressed under the action of the lever, and the locking tongue 42 can be retracted, thereby ensuring the safety of use during the charging process. In addition, a guide plate 32 extending in the vertical direction is provided at the opening 31. Since the locking tongue 42 is rotatably connected to the first handle 4, the locking tongue 42 can always remain in the vertical direction during the process of extending into or moving out of the opening 31 along the guide plate 32, thereby ensuring the stability of the locking.

[0026] 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 / J1772 adapter, characterized in that: The invention comprises a housing base (1), a housing (2) mounted on the housing base (1), and a first locking unit and a second locking unit, wherein the housing base (1) has a first connection end for connecting to a charging gun, the housing (2) has a second connection end for connecting to the charging base, 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 / J1772 adapter according to claim 1, characterized in that: The first locking unit comprises a positioning seat (3) mounted on the housing seat (1), a first handle (4) mounted on the positioning seat (3), and a cover (5) mounted on the first handle (4); the middle part of the first handle (4) is rotatably mounted on the positioning seat (3) via a first pin (6); one end of the first handle (4) forms a first pressing portion (41); the lower part of the first pressing portion (41) is elastically supported on the positioning seat (3) via a first spring (7); a locking tongue (42) is mounted on the other end of the first handle (4); a corresponding position of the positioning seat (3) has an opening (31); the upper part of the locking tongue (42) and the cover (5) are elastically supported via a second spring (8) so that the locking tongue (42) passes through the opening (31) and extends into the first connecting end to be locked with the charging gun.

3. The NACS / J1772 adapter according to claim 2, characterized in that: The locking tongue (42) is rotatably connected to the end of the first handle (4); a guide plate (32) extending in a vertical direction is provided at the opening (31); and the locking tongue (42) extends into or out of the opening (31) along the guide plate (32).

4. The NACS / J1772 adapter according to claim 3, characterized in that: Both ends of the first pin (6) are connected to the cover (5).

5. The NACS / J1772 adapter according to claim 1, characterized in that: The second locking unit comprises a second handle (9) mounted on the housing base (1); the middle portion of the second handle (9) is rotatably mounted on the housing base (1) via a second pin (10); one end of the second handle (9) forms a second pressing portion (91); the other end of the second handle (9) has a hook (92); a torsion spring (11) is sleeved on the second pin (10) so that the hook (92) is locked with the charging base.

6. The NACS / J1772 adapter according to claim 5, characterized in that: A pair of high-voltage transfer terminals (12), a pair of control transfer terminals (13), and a ground transfer terminal (14) are provided between the housing seat (1) and the housing (2); the high-voltage transfer terminal (12), the control transfer terminal (13), and the ground transfer terminal (14) respectively have a first transfer end and a second transfer end; the first transfer end extends into the first connection end of the housing seat (1), and the second connection end extends into the second connection end of the housing (2).

7. The NACS / J1772 adapter according to claim 6, characterized in that: The second transfer ends of the high-voltage transfer terminal (12) and the ground transfer terminal (14) are respectively formed of red copper silver-plated columns through milling grooves to form a clamp-like structure.

8. The NACS / J1772 adapter according to claim 6, characterized in that: A rubber-coated circuit board (15) is arranged between the housing seat (1) and the housing (2); the high-voltage transfer terminal (12) and the ground transfer terminal (14) pass through a hollow portion of the rubber-coated circuit board (15); the control transfer terminal (13) is connected to the rubber-coated circuit board (15); the rubber-coated circuit board (15) has a control unit, and the control unit is configured to output a control signal according to an input signal of the control transfer terminal (13).

9. The NACS / J1772 adapter according to claim 7, characterized in that: A micro switch (16) is provided on the rubber-coated circuit board (15), and the hook (92) of the second handle (9) is elastically pressed against the micro switch (16). When the second pressing portion (91) is pressed, the control unit outputs a closing control signal.

10. The NACS / J1772 adapter according to claim 1, characterized in that: A gun head liner (16) is installed in the second connecting end of the outer shell (2), and a gun head sealing ring (17) is provided between the outer shell (2) and the gun head liner (16).

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