Modularized electric vehicle charging gun head assembly and vehicle charging gun head thereof

Abstract

The invention discloses a modular electric vehicle charging gun head assembly which comprises a mechanical unlocking unit, a microswitch, a support, a terminal support and an insulating head, the microswitch is used for being matched with the mechanical unlocking unit to trigger the microswitch, and the support is arranged on the lower portion of the mechanical unlocking unit and provided with a microswitch mounting cavity and a spring seat. The front end of the insulation head is provided with an integrated centralized installation seat, the centralized installation seat is provided with a bearing connection part, a terminal support installation cavity and a support fixing part, the tail end of the support is partially positioned at the front end of the support fixing part in a sleeved mode to form positioning, and the support and the centralized installation seat are mutually connected through a first connection structure. And the terminal bracket is embedded and matched in the terminal bracket mounting cavity. According to the invention, the mechanical unlocking unit, the microswitch, the support, the terminal bracket and the insulating head are designed on the same module assembly, so that the assembly accumulated tolerance is small, the assembly is simple, direct modular use can be realized, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle charging guns, and in particular to a modular electric vehicle charging gun head assembly and an electric vehicle charging gun head thereof. Background Art

[0002] With the adjustment and encouragement of national policies, electric vehicles are becoming more and more popular, and charging technology is also changing with the development of the electric vehicle industry. The charging device of new energy electric vehicles is connected through connectors (charging guns, charging sockets) and charging cables. The charging gun of new energy electric vehicles is an important component for connecting new energy electric vehicles with power supply equipment. The main components of AC charging guns include charging gun housing, plug terminals (pins), plug insulators, micro switches, mechanical locks, etc.

[0003] Currently, in most charging gun designs on the market, mechanical locks, insulating heads, and micro switches are independently installed in the gun housing. The cumulative assembly tolerance is large, the assembly is complex, the structural precision is high, and the mechanical lock is prone to failure. At the same time, once the appearance of the charging gun is changed, parts such as the insulating head need to be redesigned and molded, and compatible design cannot be achieved. In addition, the live parts of most gun heads only meet the IP55 protection level required by the national standard and cannot cope with extreme environments. Summary of the invention

[0004] In view of the above-mentioned shortcomings, the present invention proposes a modular electric vehicle charging gun head assembly and an automobile charging gun head thereof. By designing a mechanical unlocking unit, a micro switch, a support, a terminal bracket and an insulating head on the same module assembly, the cumulative assembly tolerance is small, the assembly is simple, and it can be directly modularized for use, thereby reducing costs.

[0005] To achieve the above object, the present invention provides the following technical solution: a modular electric vehicle charging gun head assembly, comprising

[0006] The mechanical unlocking unit comprises a pressing portion at the front end, an unlocking block at the rear end, and a spring for resetting in sequence;

[0007] A micro switch, used to cooperate with the pressing part to trigger the micro switch;

[0008] A support is arranged at the lower part of the mechanical unlocking unit, and the support is provided with a micro switch installation cavity for accommodating the micro switch and a spring seat for cooperating with the spring;

[0009] A terminal bracket, which is provided with a plurality of through cavities for matching with the terminals;

[0010] The insulating head is used as the installation basis for the mechanical unlocking unit, the support and the terminal support to form a modular electric vehicle charging gun head assembly. The front end of the insulating head is provided with an integrated centralized mounting seat, and the centralized mounting seat is respectively provided with a supporting connection part, a terminal support mounting cavity and a support fixing part;

[0011] The rear end of the support is at least partially fitted and positioned on the front end of the support fixing portion to form a position, and the support and the centralized mounting seat are mutually engaged by a first connecting structure, and the terminal bracket is embedded and fitted in the terminal bracket mounting cavity.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] By designing the mechanical unlocking unit, micro switch, support, terminal bracket and insulating head as modules that can be manufactured and assembled independently, the production process is greatly simplified, and the production efficiency and flexibility are improved. At the same time, this design is also convenient for subsequent maintenance and replacement, reducing maintenance costs;

[0014] The insulating head is used as the installation base, integrating the supporting connection part, the terminal bracket installation cavity and the support fixing part, realizing the integrated centralized installation of various components. This design not only reduces the cumulative assembly tolerance and simplifies the assembly, but also optimizes the overall structure, making the charging gun head more compact and lightweight, and can be directly used in modular form, thus reducing the cost.

[0015] The rear end of the support is at least partially fitted and positioned at the front end of the support fixing portion, and is engaged with each other through the first connecting structure. This design ensures a stable connection between the support and the insulating head, and improves the structural strength and stability of the entire charging gun head. At the same time, the design of the spring seat also provides a reliable reset mechanism for the mechanical unlocking unit, ensuring smooth and accurate unlocking action;

[0016] There are multiple through cavities inside the terminal bracket for matching with the terminals. This design not only facilitates the installation and fixation of the terminals, but also ensures the reliability and stability of the electrical connection. At the same time, the use of the insulating head effectively isolates the electrical components from the external environment, thereby improving the electrical safety and insulation performance of the charging gun head.

[0017] As an improvement, a first embedding seat is provided above the tail end of the support, a second embedding seat is provided at the supporting connection part, and the first embedding seat and the second embedding seat are fitted and positioned to realize the supporting connection between the support and the insulating head. The middle section of the mechanical unlocking unit passes through the corresponding through holes of the first embedding seat and the second embedding seat through the rotating shaft to realize the rotational connection. Through the fitting positioning of the first embedding seat and the second embedding seat, the connection between the support and the insulating head becomes extremely stable. This design not only enhances the reliability of the connection, but also improves the vibration and impact resistance of the entire structure, ensuring the stable operation of the electric vehicle charging gun. At the same time, the precise fitting between the first embedding seat and the second embedding seat ensures the precise positioning and alignment between the support and the insulating head.

[0018] As an improvement, the rear end of the support is provided with a fitting recess for the support fixing part to fit and position, the inner wall of the fitting recess is provided with a plurality of first positioning blocks, and the interior of the support fixing part is provided with a positioning groove for cooperating with the first positioning block. Through the precise cooperation between the first positioning block and the positioning groove, it can be ensured that the support fixing part is firmly fixed in the fitting recess, effectively preventing loosening or displacement caused by external force or long-term use, thereby greatly enhancing the stability and firmness of the overall structure, and at the same time enabling the support to be positioned and installed on the insulating head.

[0019] As an improvement, the first connecting structure is composed of a first clamping member arranged parallel to the two side walls of the rear end of the support and a first clamping block arranged on the two side walls of the support fixing part. Through the clamping design of the first clamping member and the first clamping block, the support and the support fixing part can be quickly connected and disassembled. This design does not require additional fasteners or complicated operating steps, which greatly improves work efficiency and convenience.

[0020] As an improvement, the terminal bracket is embedded in the terminal bracket mounting cavity and engaged by a second connecting structure. The terminal bracket is embedded and engaged in the terminal bracket mounting cavity, which ensures the stability and reliability of the connection. The embedding and engaging design usually requires higher dimensional accuracy and fitting accuracy to ensure that the terminal bracket can be accurately installed in the predetermined position. This precise positioning helps to reduce performance problems caused by installation errors and improve the accuracy and reliability of the overall structure.

[0021] As an improvement, the second connecting structure is composed of a second clamping member arranged parallel to the front end of the terminal bracket and a second clamping block arranged on the two side walls of the support fixing part. The terminal bracket and the support fixing part are connected by the second clamping member and the second clamping block, which facilitates the installation and disassembly of the terminal bracket and the insulating head.

[0022] As an improvement, a limiting block is provided at the front end of the terminal bracket, a second positioning block is provided at the upper end of the limiting block, a positioning hole is provided at the lower end of the supporting connection part corresponding to the second positioning block, the front end of the second positioning block abuts against the side wall of the positioning hole, and the upper end of the limiting block abuts against the lower end of the supporting connection part, and the front end of the second positioning block abuts against the side wall of the positioning hole, thereby ensuring the precise positioning between the terminal bracket and the supporting connection part. This design reduces the assembly difficulty and error caused by position deviation, and improves the stability and reliability of the overall structure. At the same time, the abutment between the upper end of the limiting block and the lower end of the supporting connection part further enhances the stability of the connection and prevents loosening or displacement.

[0023] As an improvement, a glue filling process is adopted between the terminal bracket mounting cavity and the terminal bracket. By filling the glue into the interior of the terminal bracket mounting cavity, the sealing of the insulating head is improved, thereby achieving the IP67 protection level of the charging gun.

[0024] A car charging gun head adopts the above-mentioned modular electric car charging gun head assembly. The car charging gun head also includes an upper gun shell and a lower gun shell. The modular electric car charging gun head assembly is arranged in the inner cavity enclosed by the upper gun shell and the lower gun shell. The modular electric car charging gun head assembly makes the design and production of the entire charging gun head more flexible and efficient, so that it can be installed in the inner cavity enclosed by the upper gun shell and the lower gun shell.

[0025] A car charging gun head adopts the above-mentioned modular electric car charging gun head assembly. The car charging gun head also includes a left gun shell and a right gun shell. The modular electric car charging gun head assembly is arranged in the inner cavity enclosed by the left gun shell and the right gun shell. The modular electric car charging gun head assembly makes the design and production of the entire charging gun head more flexible and efficient, so that it can be installed in the inner cavity enclosed by the left gun shell and the right gun shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0027] Figure 1 A schematic diagram of a modular electric vehicle charging gun head assembly and an electric vehicle charging gun head structure;

[0028] Figure 2 A schematic diagram of a modular electric vehicle charging gun head assembly and a cross-sectional view of the structure of the electric vehicle charging gun head;

[0029] Figure 3 is a schematic diagram of the support structure;

[0030] Figure 4 It is a schematic diagram of the coordination between the terminal bracket and the terminal structure;

[0031] Figure 5 It is a schematic diagram of the insulating head structure;

[0032] Figure 6 This is a schematic diagram of the glue filling position;

[0033] Figure 7 It is a structural schematic diagram of the gun body shell assembly method 1;

[0034] Figure 8 It is a structural schematic diagram of the second gun body shell assembly method.

[0035] The marks in the above figure are as follows: 1. Mechanical unlocking unit; 1.1. Pressing part; 1.2. Unlocking block; 1.3. Spring; 2. Micro switch; 3. Support; 3.1. Micro switch installation cavity; 3.2. Spring seat; 3.3. First embedded seat; 3.4. Fitting concave portion; 3.4.1. First positioning block; 4. Terminal bracket; 4.1. Through cavity; 4.2. Limit block; 4.3. Second positioning block; 5. Insulation head; 5. .1. Support connection part; 5.1.1. Second embedding seat; 5.1.2. Positioning hole; 5.2. Terminal bracket installation cavity; 5.3. Support fixing part; 5.3.1. Positioning groove; 6. First connecting structure; 6.1. First clamping part; 6.2. First clamping block; 7. Rotating shaft; 8. Second connecting structure; 8.1. Second clamping part; 8.2. Second clamping block; 9. Car charging gun head; 10. Terminal; 10.1. U-shaped limiter. DETAILED DESCRIPTION

[0036] In the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential" 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.

[0037] like Figures 1 to 5As shown, a modular electric vehicle charging gun head assembly includes a mechanical unlocking unit 1, a micro switch 2, a support 3, a terminal bracket 4, and an insulating head 5. The mechanical unlocking unit 1 includes a pressing portion 1.1 arranged at the front end, an unlocking block 1.2 arranged at the rear end, and a spring 1.3 for resetting. The micro switch 2 is used to cooperate with the pressing portion 1.1 to trigger the micro switch 2. The support 3 is arranged at the lower part of the mechanical unlocking unit 1. The support 3 is provided with a micro switch installation cavity 3.1 for accommodating the micro switch 2 and a spring seat 3.2 for cooperating with the spring 1.3. The terminal bracket 4 is provided with a plurality of springs for In the through cavity 4.1 that matches with the terminal 10, the insulating head 5 serves as the installation basis for the mechanical unlocking unit 1, the support 3 and the terminal bracket 4 to be combined into a modular electric vehicle charging gun head assembly, and the front end of the insulating head 5 is provided with an integrated centralized mounting seat, and the centralized mounting seat is respectively provided with a supporting connection part 5.1, a terminal bracket mounting cavity 5.2 and a support fixing part 5.3. The tail end of the support 3 is at least partially fitted and positioned on the front end of the support fixing part 5.3 to form a positioning, and the support 3 and the centralized mounting seat are mutually engaged by a first connecting structure 6, and the terminal bracket 4 is embedded and matched in the terminal bracket mounting cavity 5.2.

[0038] A first embedding seat 3.3 is provided above the tail end of the support 3, and a second embedding seat 5.1.1 is provided on the supporting connection portion 5.1, and the first embedding seat 3.3 and the second embedding seat 5.1.1 are fitted and positioned to realize the supporting connection between the support 3 and the insulating head 5, and the middle section of the mechanical unlocking unit 1 realizes a rotational connection by passing through the corresponding through holes of the first embedding seat 3.3 and the second embedding seat 5.1.1 through the rotating shaft 7.

[0039] The rear end of the support 3 is provided with a fitting recess 3.4 for the support fixing part 5.3 to fit and position. The inner wall of the fitting recess 3.4 is provided with a plurality of first positioning blocks 3.4.1. The interior of the support fixing part 5.3 is provided with a positioning groove 5.3.1 for matching with the first positioning block 3.4.1.

[0040] The first connection structure 6 is composed of a first clamping member 6.1 arranged parallel to the two side walls of the rear end of the support 3 and a first clamping block 6.2 arranged on the two side walls of the support fixing portion 5.3.

[0041] The terminal support 4 is embedded in the terminal support installation cavity 5.2 and connected by a second connection structure 8, which is composed of a second clamping member 8.1 arranged parallel to the front end of the terminal support 4 and a second clamping block 8.2 arranged on both side walls of the support fixing portion 5.3.

[0042] A limit block 4.2 is provided at the front end of the terminal bracket 4, a second positioning block 4.3 is provided at the upper end of the limit block 4.2, a positioning hole 5.1.2 is provided at the lower end of the supporting connection part 5.1 corresponding to the second positioning block 4.3, the front end of the second positioning block 4.3 abuts against the side wall of the positioning hole 5.1.2, and the upper end of the limit block 4.2 abuts against the lower end of the supporting connection part 5.1.

[0043] A U-shaped stopper 10.1 adapted to the through cavity 4.1 is provided at the front end of the terminal 10, and the terminal 10 is arranged inside the through cavity 4.1 through the U-shaped stopper 10.1.

[0044] like Figure 6 As shown, a glue pouring process is adopted between the terminal support installation cavity 5.2 and the terminal support 4, and the marked places in the figure are the specific positions of the glue pouring.

[0045] like Figure 7 As shown, a car charging gun head adopts the above-mentioned modular electric car charging gun head assembly. The car charging gun head 9 also includes a left gun shell and a right gun shell. The modular electric car charging gun head assembly is arranged in the inner cavity enclosed by the left gun shell and the right gun shell.

[0046] like Figure 8 As shown, a car charging gun head adopts the above-mentioned modular electric car charging gun head assembly. The car charging gun head 9 also includes an upper gun shell and a lower gun shell. The modular electric car charging gun head assembly is arranged in the inner cavity enclosed by the upper gun shell and the lower gun shell.

[0047] The micro switch 2 is placed inside the micro switch installation cavity 3.1, the lower end of the spring 1.3 is sleeved on the peripheral wall of the spring seat 3.2, and the terminal bracket 4 is embedded in the terminal bracket installation cavity 5.2, so that the front end of the second positioning block 4.3 is against the side wall of the positioning hole 5.1.2, and the upper end of the limit block 4.2 is against the lower end of the support connection part 5.1, and the second clamp 8.1 is engaged with the second clamp 8.2, and the terminal 10 is set in the through cavity 4.1 through the U-shaped limiter 10.1. After the terminal bracket installation cavity 5.2 and the terminal bracket 4 are glued, the sleeve recess 3.4 of the support 3 is sleeved and positioned on the support fixing Part 5.3, so that the first positioning block 3.4.1 is matched and connected with the positioning groove 5.3.1, the first embedding seat 3.3 and the second embedding seat 5.1.1 are fitted and positioned to realize the supporting connection between the support 3 and the insulating head 5, and the middle section of the mechanical unlocking unit 1 passes through the corresponding through holes of the first embedding seat 3.3 and the second embedding seat 5.1.1 through the rotating shaft 7 to realize the rotation connection, and the two side walls of the rear end of the support 3 and the two side walls of the fixed part of the support 3 are connected by the first clamping piece 6.1 and the first clamping block 6.2. The assembled modular electric vehicle charging gun head 9 component can be set in the inner cavity enclosed by the upper gun shell and the lower gun shell or the inner cavity enclosed by the left gun shell and the right gun shell.

[0048] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A modular electric vehicle charging gun head assembly, characterized in that: include The mechanical unlocking unit comprises a pressing portion at the front end, an unlocking block at the rear end, and a spring for resetting in sequence; A micro switch, used to cooperate with the pressing portion to trigger the micro switch; A support, which is arranged at the lower part of the mechanical unlocking unit, and the support is provided with a micro switch installation cavity for accommodating a micro switch and a spring seat for cooperating with a spring; A terminal bracket, which is provided with a plurality of through cavities for matching with the terminals; The insulating head is used as the installation base of the mechanical unlocking unit, the support and the terminal support to form a modular electric vehicle charging gun head assembly. The front end of the insulating head is provided with an integrated centralized mounting seat, and the centralized mounting seat is respectively provided with a supporting connection part, a terminal support mounting cavity and a support fixing part; The rear end of the support is at least partially fitted and positioned on the front end of the support fixing portion to form a positioning, and the support and the centralized mounting seat are mutually engaged by a first connecting structure, and the terminal bracket is embedded and fitted in the terminal bracket mounting cavity.

2. A modular electric vehicle charging gun head assembly according to claim 1, characterized in that: A first embedding seat is provided above the tail end of the support, and a second embedding seat is provided at the supporting connection portion, and the first embedding seat and the second embedding seat are fitted and positioned to realize the supporting connection between the support and the insulating head, and the middle section of the mechanical unlocking unit realizes a rotational connection by passing a rotating shaft through the corresponding through holes of the first embedding seat and the second embedding seat.

3. A modular electric vehicle charging gun head assembly according to claim 1 or 2, characterized in that: The rear end of the support is provided with a fitting recess for the support fixing part to fit and position, the inner wall of the fitting recess is provided with a plurality of first positioning blocks, and the interior of the support fixing part is provided with a positioning groove for matching with the first positioning block.

4. A modular electric vehicle charging gun head assembly according to claim 3, characterized in that: The first connection structure is composed of a first clamping piece arranged parallel to the two side walls of the rear end of the support and a first clamping block arranged on the two side walls of the fixing part of the support.

5. The modular electric vehicle charging gun head assembly according to claim 1, characterized in that: The terminal support is embedded in the terminal support installation cavity and is connected by a second connection structure.

6. A modular electric vehicle charging gun head assembly according to claim 5, characterized in that: The second connection structure is composed of a second clamping piece arranged parallel to the front end of the terminal bracket and a second clamping block arranged on both side walls of the support fixing part.

7. The modular electric vehicle charging gun head assembly according to claim 1, characterized in that: A limiting block is arranged at the front end of the terminal bracket, a second positioning block is arranged at the upper end of the limiting block, a positioning hole is arranged at the lower end of the supporting connection part corresponding to the second positioning block, the front end of the second positioning block abuts against the side wall of the positioning hole, and the upper end of the limiting block abuts against the lower end of the supporting connection part.

8. The modular electric vehicle charging gun head assembly according to claim 1, characterized in that: A glue pouring process is adopted between the terminal bracket installation cavity and the terminal bracket.

9. A car charging gun head, characterized by: A modular electric vehicle charging gun head assembly as described in any one of claims 1-6 is used, wherein the vehicle charging gun head further comprises an upper gun shell and a lower gun shell, and the modular electric vehicle charging gun head assembly is arranged in an inner cavity enclosed by the upper gun shell and the lower gun shell.

10. A car charging gun head, characterized by: A modular electric vehicle charging gun head assembly as described in any one of claims 1-6 is used, wherein the vehicle charging gun head further comprises a left gun shell and a right gun shell, and the modular electric vehicle charging gun head assembly is arranged in an inner cavity enclosed by the left gun shell and the right gun shell.

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