A charging connector for a charging pile and its manufacturing and assembly method

By designing a matte-fit charging head male and female connector and setting multiple sets of interfaces within a limited space, the problems of loose charging connectors and poor contact were solved, resulting in a more stable and safer charging connection, and improving the service life of charging piles and user experience.

CN115000764BActive Publication Date: 2025-10-31DONGGUAN LINOYAINTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202210615741.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-01
Publication Date
2025-10-31
Estimated Expiration
2042-06-01

AI Technical Summary

Technical Problem

The male and female connectors of existing charging piles are prone to loosening and oxidation after long-term use or under external force, resulting in poor contact and affecting charging stability and service life.

Method used

A charging connector for a charging pile has been designed, including a male and female charging head that fit together. The male and female heads are divided into multiple chambers and interfaces. A positioning ring and a partition are used to ensure a stable connection, which increases the resistance to vibration and impact. Multiple sets of interfaces are set in a limited space to meet the needs of stable charging with high current.

Benefits of technology

It improves the conductivity stability and safety of the charging connector, reduces the risk of poor contact and interface damage, and enhances the reliability and user experience of the charging head.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a charging connector for a charging pile, comprising a male charging head and a female charging head socket that are fitted together. The male charging head includes a male head body and a terminal mounting portion disposed inside the male head body, with a power cord docking portion and a female socket docking portion connected to the terminal mounting portion. The female charging head includes a female socket body and a terminal receiving portion disposed inside the female socket body, with a male insertion portion surrounding the terminal receiving portion. The terminal mounting portion is adapted to dock with the terminal receiving portion to achieve electrical connection, and the male insertion portion is detachably inserted into the female socket docking portion to achieve a sealed lock. A method for manufacturing and assembling the charging connector for a charging pile is also disclosed. The fitted assembly of the male and female charging heads in this invention enhances the stability and safety of conductive charging, prevents problems such as poor contact and interface damage due to loosening, and improves the mechanical properties of the charging connector, such as vibration and impact resistance.
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Description

Technical Field

[0001] This invention relates to the field of charging connector technology, specifically to a charging pile charging connector and its manufacturing and assembly method. Background Technology

[0002] With the development of science and technology, lithium batteries have become the most popular new energy battery in new energy vehicles. Their biggest advantage is their ability to connect to charging stations for charging. However, lithium batteries have ideal lower and upper voltage limits, namely 2.4V to 4.2V. Otherwise, permanent damage can occur. Therefore, the most crucial aspect of daily use of lithium batteries is choosing a good charging adapter. Charging adapters consist of a male and a female connector. Currently, commercially available male and female connectors typically only contain two sets of terminals, which are insufficient to handle the high current required for the corresponding charging voltage, resulting in poor charging stability. Furthermore, traditional male and female connectors use an exposed connection method, meaning the mating surfaces are flush. This type of connection, after prolonged use or exposure to external force, can cause the charging station connector to loosen, oxidize, or experience poor contact, leading to unstable charging, reduced charging adapter lifespan, and affecting normal use. Summary of the Invention

[0003] To overcome the above-mentioned technical problems, this invention discloses a charging connector for a charging pile and its manufacturing and assembly method.

[0004] The technical solution adopted by the present invention to achieve the above objectives is as follows:

[0005] A charging connector for a charging pile includes a male charging head and a female charging head that are fitted together.

[0006] The male charging head includes a male head body and a terminal setting part disposed inside the male head body, and a power cord docking part and a female connector docking part are provided in connection with the terminal setting part;

[0007] The female charging head includes a female head body and a terminal receiving portion disposed inside the female head body, and a male head insertion portion is disposed around the terminal receiving portion;

[0008] The terminal setting part is adapted to be connected to the terminal receiving part to achieve electrical connection, and the male insertion part is detachably inserted into the female docking part to achieve sealing and locking.

[0009] The charging connector of the charging pile mentioned above, wherein the female connector includes a positioning male socket extending from the male connector body, the positioning male socket having a first male socket and a first female socket, and a female positioning cavity being formed between the first male socket and the positioning male socket;

[0010] A set of first interface female terminals is provided in the first female connector chamber, and four sets of interface male pins and a set of first interface male prongs are provided in the first male connector chamber extending through the terminal setting part.

[0011] The charging connector of the charging pile described above, wherein the terminal receiving part includes a second male socket and a second female socket, a male positioning cavity is formed between the second male socket and the male insertion part, the first female socket is adapted to fit into the male positioning cavity to achieve a sealed lock with the second male socket, and the second female socket is adapted to fit into the female positioning cavity to achieve a sealed lock with the first male socket;

[0012] A set of second interface male prongs is provided extending through the terminal receiving portion into the second male socket, and four sets of interface female pins and a set of second interface female terminals are provided through the second female socket. The second interface male prongs are adapted to the first interface female terminals, the interface female pins are adapted to the interface male pins, and the second interface female terminals are adapted to the first interface male prongs to achieve electrical connection.

[0013] The charging connector of the charging pile described above, wherein the terminal receiving part further includes four sets of first plug interfaces and one set of second plug interfaces, wherein the first plug interfaces are used to selectively plug into the interface male pin that is compatible with the interface female pin, and the second plug interfaces are used to selectively plug into the first interface male plug that is compatible with the second interface female terminal.

[0014] The charging connector of the charging pile described above, wherein the female connector part further includes a first partition, a second partition and a third partition, the first partition being disposed between the male connector and the first female connector, the second partition being disposed between the male connector and the first male connector, and the third partition being disposed between the first male connector and the first female connector.

[0015] The charging connector of the charging pile described above has a first terminal through hole and a second terminal through hole through the terminal setting part, a first terminal setting groove through the first female connector chamber, the first interface female terminal passing through the first terminal setting groove, the interface male pin being adapted to pass through the first terminal through hole and extending into the first male connector chamber, and the first interface male prong being adapted to pass through the second terminal through hole and extending into the first male connector chamber.

[0016] The charging connector of the charging pile described above has a third terminal through hole through the terminal receiving part, and a second terminal setting groove and a third terminal setting groove are respectively provided through the second female connector chamber corresponding to the first plug interface and the second plug interface. The second interface male plug is adapted to be inserted into the third terminal through hole and extends into the second male connector chamber. The interface female pin and the second interface female terminal are respectively placed in the second terminal setting groove and the third terminal setting groove.

[0017] In the aforementioned charging pile charging connector, the first interface female terminal is parallel to the interface male pin, and the interface male pin is parallel to the first interface male prong.

[0018] The second interface male prong is parallel to the interface female pin, and the interface female pin is parallel to the second interface female terminal.

[0019] The charging connector of the charging pile described above has a first female terminal positioning ring fitted on the first interface female terminal, which abuts against the first female connector chamber;

[0020] A second female terminal positioning ring is fitted onto the second female terminal of the interface, which abuts against the second female terminal chamber.

[0021] A method for manufacturing and assembling a charging connector for a charging pile, wherein the charging connector includes a male charging head and a female charging head that are fitted and assembled together;

[0022] Its manufacturing and assembly method includes the following steps:

[0023] Step 1: Design and manufacture the male head forming mold and the female head forming mold according to the required shape and internal structure of the male head body and the female head body respectively;

[0024] The male connector body has a terminal setting part, a power cord docking part and a female connector docking part, and the female connector body has a terminal receiving part and a male connector insertion part;

[0025] Step 2: Use the male head molding die to injection mold the terminal setting part, power line docking part and female connector docking part with the corresponding structure.

[0026] The terminal setting part and the female connector part are integrally formed. The female connector part has a first male socket and a first female socket. The terminal setting part has four sets of first terminal through holes, one set of second terminal through holes and one set of first terminal setting slots.

[0027] Step 3: Use the female molding mold to injection mold the terminal receiving part and male insertion part with the corresponding structure;

[0028] The terminal receiving part and the male insertion part are integrally formed. The terminal receiving part includes a second male insertion chamber and a second female insertion chamber. The terminal receiving part has a set of third terminal through holes, four sets of second terminal setting slots and a set of third terminal setting slots.

[0029] Step 4: Fabricate several sets of first interface female terminals, interface male pins, first interface male inserts, second interface male inserts, interface female pins, and second interface female terminals;

[0030] The second interface male connector is adapted to the structure of the first interface female terminal, the interface female pin is adapted to the structure of the interface male pin, and the second interface female terminal is adapted to the structure of the first interface male connector.

[0031] Step 5: Install the first female interface terminal, the male interface pin, and the first male interface insert into the first terminal setting slot, the first terminal through hole, and the second terminal through hole, respectively, to obtain the terminal setting part equipped with the first female interface terminal, the male interface pin, and the first male interface insert, wherein the first female interface terminal is abutted against the first female interface chamber by the first female terminal positioning ring.

[0032] Step 6: Install the second interface male plug, the interface female pin, and the second interface female terminal into the third terminal through hole, the second terminal setting slot, and the third terminal setting slot respectively to obtain the charging head female socket, wherein the second interface female terminal is abutted in the second female socket by the second female terminal positioning ring;

[0033] Step 7: Install the power connection cable into the power cable connector;

[0034] Step 8: Assemble the power cord mating part obtained in step 7 onto the terminal setting part obtained in step 5 to obtain the male charging head, wherein the power connection wires are electrically connected to the first interface female terminal, the interface male pin and the first interface male plug.

[0035] The beneficial effects of this invention include the following:

[0036] (1) The male charging head and the female charging head are fitted together in a compatible manner, which can enhance the stability and safety of conductive charging, and prevent problems such as poor contact and interface damage caused by loosening of the male charging head and the female charging head, thereby improving the mechanical properties of the charging pile charging connector such as vibration resistance and impact resistance.

[0037] (2) The male connector of the charging head is specifically divided into the terminal setting part, the power cord docking part and the female connector docking part, and the female connector of the charging head is specifically divided into the terminal receiving part and the male connector insertion part. This optimizes the docking compatibility and reliability of the male connector and the female connector of the charging head, establishes an efficient conductive connection, meets the safety requirements of stable charging with high current, and improves the user experience.

[0038] (3) The male charging head innovatively divides the first male connector chamber and the first female connector chamber separately, and sets a set of first interface female terminals, four sets of interface male pins and a set of first interface male prongs in a limited space, reducing the space occupancy of the charging pile charging connector, meeting the requirements for carrying different current amounts, and at the same time, through the female positioning cavity, it plays the role of docking adaptation and hiding between the male charging head and the female charging head.

[0039] (4) The charging head female socket innovatively divides the second male socket and the second female socket separately, and sets a set of second interface male plugs, four sets of interface female pins and a set of second interface female terminals in a limited space, reducing the space occupancy of the charging pile charging connector, meeting the requirements for carrying different current amounts, and at the same time, through the male head positioning cavity, it plays the role of docking adaptation and hiding between the charging head female socket and the charging head male head. Attached Figure Description

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0042] Figure 2 This is a three-dimensional schematic diagram of the male charging head in this invention;

[0043] Figure 3 This is an exploded view of the male charging head in this invention;

[0044] Figure 4 This is a three-dimensional schematic diagram of the female connector in this invention;

[0045] Figure 5 This is a three-dimensional schematic diagram of the female charging head socket in this invention;

[0046] Figure 6 This is an exploded view of the female charging head socket in this invention. Detailed Implementation

[0047] The present invention will be further described below through specific embodiments, so as to make the technical solution of the present invention easier to understand and master, rather than to limit the present invention.

[0048] Example: See Figures 1 to 6This embodiment provides a charging connector for a charging pile, which includes a male charging head 7 and a female charging head 8 that are fitted and assembled together.

[0049] The male charging head 7 includes a male head body and a terminal setting part 1 disposed inside the male head body. A power cord docking part 2 and a female connector docking part 3 are provided in connection with the terminal setting part 1.

[0050] The charging head female socket 8 includes a female socket body 4 and a terminal receiving portion disposed inside the female socket body 4, and a male plug insertion portion is disposed around the terminal receiving portion;

[0051] The terminal setting part is adapted to be connected to the terminal receiving part to achieve electrical connection, and the male insertion part is detachably inserted into the female docking part to achieve sealing and locking.

[0052] Specifically, the male charging head 7 and the female charging head 8 are fitted together in a compatible manner, which not only enhances the stability and safety of conductive charging, but also prevents problems such as poor contact and interface damage caused by loosening of the male charging head 7 and the female charging head 8. This improves the mechanical properties of the charging pile connector, such as vibration resistance and impact resistance. The male charging head 7 is specifically divided into a terminal setting part, a power line docking part, and a female docking part, while the female charging head 8 is specifically divided into a terminal receiving part and a male insertion part. This optimizes the compatibility and reliability of the male charging head 7 and the female charging head 8, establishes an efficient conductive connection, meets the safety requirements of stable high-current charging, and improves the user experience.

[0053] Preferably, the female connector 3 includes a positioning male socket 31 extending from the male connector body. The positioning male socket 31 has a first male insertion chamber and a first female insertion chamber. The first male insertion chamber and the positioning male socket 31 form a female connector positioning cavity 32.

[0054] A set of first interface female terminals 33 is provided in the first female connector chamber, and four sets of interface male pins 34 and a set of first interface male prongs 35 are provided in the first male connector chamber through the terminal setting part 1. In this innovative way, the first male connector chamber and the first female connector chamber are separately divided, and a set of first interface female terminals 33, four sets of interface male pins 34 and a set of first interface male prongs 35 are provided in a limited space, which reduces the space occupied by the charging head, meets the requirements for carrying different current amounts, and at the same time, the female connector positioning cavity 32 plays a role in the docking adaptation and concealment between the male connector 7 and the female connector 8 of the charging head.

[0055] Preferably, the terminal receiving portion includes a second male socket and a second female socket, the second male socket and the male insertion portion form a male positioning cavity 51, the first female socket is adapted to fit into the male positioning cavity 51 to achieve a sealed lock with the second male socket, and the second female socket is adapted to fit into the female positioning cavity 32 to achieve a sealed lock with the first male socket;

[0056] A set of second interface male prongs 52 extends through the terminal receiving portion into the second male socket and is provided. Four sets of interface female pins 53 and a set of second interface female terminals 54 are provided through the second female socket. The second interface male prongs 52 are respectively adapted to the first interface female terminal 33, the interface female pins 53 are respectively adapted to the interface male pins 34, and the second interface female terminals 54 are respectively adapted to the first interface male prongs 35 to achieve electrical connection. In this innovative way, the second male socket and the second female socket are separately divided, and a set of second interface male prongs 52, four sets of interface female pins 53 and a set of second interface female terminals 54 are provided in a limited space, which reduces the space occupied by the charging head, meets the requirements for carrying different currents, and at the same time, the male head positioning cavity 51 plays a role in the mating adaptation and concealment between the charging head female socket 8 and the charging head male head 7.

[0057] Furthermore, the terminal receiving portion also includes four sets of first connectors and one set of second connectors. The first connectors are used to selectively connect the male connector 34 that is compatible with the female connector 53, and the second connectors are used to selectively connect the first male connector 35 that is compatible with the female connector 54, thereby further improving the orientation and convenience of plugging and unplugging the female connector 8 and the male connector 7.

[0058] Furthermore, the female connector 3 also includes a first partition 361, a second partition 362, and a third partition 363. The first partition 361 is disposed between the male connector 34 and the first female connector 33, the second partition 362 is disposed between the male connector 34 and the first male connector 35, and the third partition 363 is disposed between the first male connector 35 and the first female connector 33. By setting the first partition 361, the second partition 362, and the third partition 363, adjacent male connectors 34, male connectors 35, and female connectors 33 are effectively separated, making it less likely for cross-current to occur between the terminals and improving the reliability of the charging head male connector 7.

[0059] Furthermore, the terminal setting part 1 is provided with a first partition receiving groove, a second partition receiving groove and a third partition receiving groove respectively corresponding to the first partition 361, the second partition 362 and the third partition 363, which further optimizes the current passing stability of each terminal and improves the assembly reliability of the interface male pin 34, the first interface male plug 35 and the first interface female terminal 33.

[0060] Furthermore, a first terminal through hole and a second terminal through hole are provided through the terminal setting part 1, and a first terminal setting groove is provided through the first female connector chamber. The first interface female terminal 33 is placed in the first terminal setting groove, the interface male pin 34 is adapted to be inserted into the first terminal through hole and extends into the first male connector chamber, and the first interface male insert 35 is adapted to be inserted into the second terminal through hole and extends into the first male connector chamber; this ensures the perpendicularity of the first interface female terminal 33, the interface male pin 34 and the first interface male insert 35 in the first terminal setting groove, the first terminal through hole and the second terminal through hole respectively, thereby enhancing the mechanical strength of the charging head male connector 7.

[0061] Furthermore, a third terminal through hole is provided through the terminal receiving portion. A second terminal setting slot 55 and a third terminal setting slot 56 are respectively provided through the second female connector chamber corresponding to the first and second connectors. The second interface male connector 52 is adapted to be inserted through the third terminal through hole and extends into the second male connector chamber. The interface female pin 53 and the second interface female terminal 54 are respectively placed in the second terminal setting slot 55 and the third terminal setting slot 56. By providing the second terminal setting slot 55 and the third terminal setting slot 56 through, adjacent interface female pins 53 and / or second interface female terminals 54 are effectively separated, making it less likely for cross-current to occur between the interface female pins 53 and the second interface female terminals 54, thereby improving the reliability of the charging head female connector 8.

[0062] Furthermore, the first interface female terminal 33 is parallel to the interface male pin 34, and the interface male pin 34 is parallel to the first interface male insert 35;

[0063] The second male connector 52 is parallel to the female connector 53, and the female connector 53 is parallel to the second female connector 54. The first female connector 33, the male connector 34, the first male connector 35, the second male connector 52, the female connector 53, and the second female connector 54 can respectively carry large current and small current, thus rationally configuring terminal resources.

[0064] Preferably, a power cord insertion hole is provided through the male connector body;

[0065] The power cord docking part 2 includes a power connection wire 21, which is adapted to be inserted into the power cord insertion hole. The power connection wire 21 is electrically connected to the first interface female terminal 33, the interface male pin 34 and the first interface male plug 35, thereby improving the reliability of the electrical connection between the power connection wire 21 and each terminal.

[0066] Furthermore, a first female terminal positioning ring 38 that abuts against the first female terminal chamber is fitted onto the first interface female terminal 33;

[0067] A second female terminal positioning ring 57 is fitted onto the second female terminal of the second interface, which abuts against the second female terminal chamber; the first female terminal positioning ring 38 and the second female terminal positioning ring 57 respectively facilitate the first female terminal 33 and the second female terminal of the interface to maintain good perpendicularity after multiple insertions and removals, effectively ensuring the docking compatibility and reliability between the charging head female socket 8 and the charging head male connector 7.

[0068] Furthermore, the four sets of male interface pins 34 are arranged side by side at intervals, and the four sets of female interface pins 53 are arranged side by side at intervals.

[0069] Furthermore, the outer side of the power cord connector 2 is provided with a holding groove 22 to improve the user's plugging and unplugging convenience and experience.

[0070] Furthermore, a positioning female slot 6 is provided in the male plug insertion part; the positioning female slot 6 is used to accommodate the compatible charging head male plug 7, further improving the docking compatibility and reliability.

[0071] Furthermore, the four corners of the positioning male socket 31 are provided with a first matching arc angle, and the four corners of the positioning female slot 6 are provided with a second matching arc angle. The second matching angle matches the first matching angle, which facilitates the improvement of the docking compatibility and reliability between the charging head female socket 8 and the charging head male socket 7.

[0072] Furthermore, a female connector 41 for connecting to the male connector 7 of the charging head is provided at the front end of the female connector body 4, and an installation through hole 42 is provided through the female connector 41 to facilitate the installation of the charging head female connector 8.

[0073] This embodiment also discloses a method for manufacturing and assembling a charging pile charging connector, wherein the charging pile charging connector includes a male charging head 7 and a female charging head socket 8 that are fitted and assembled together.

[0074] Its manufacturing and assembly method includes the following steps:

[0075] Step 1: Design and manufacture the male head forming mold and the female head forming mold according to the required shape and internal structure of the male head body and the female head body respectively;

[0076] The male connector body has a terminal setting part 1, a power cord docking part 2 and a female connector docking part 3, and the female connector body has a terminal receiving part and a male connector insertion part;

[0077] Step 2: The terminal setting part 1, power line docking part 2, and female docking part 3 with corresponding structures are obtained by injection molding using the male head molding mold;

[0078] The terminal setting part 1 and the female connector part 3 are integrally formed. The female connector part 3 has a first male connector chamber and a first female connector chamber. The terminal setting part 1 has four sets of first terminal through holes, one set of second terminal through holes and one set of first terminal setting slots.

[0079] Step 3: Use the female molding mold to injection mold the terminal receiving part and male insertion part with the corresponding structure;

[0080] The terminal receiving part and the male insertion part are integrally formed. The terminal receiving part includes a second male insertion chamber and a second female insertion chamber. The terminal receiving part has a set of third terminal through holes, four sets of second terminal setting slots 55 and a set of third terminal setting slots 56.

[0081] Step 4: Fabricate several sets of first interface female terminal 33, interface male pin 34, first interface male insert 35, second interface male insert 52, interface female pin 53 and second interface female terminal 54;

[0082] The second interface male connector 52 is adapted to the structure of the first interface female terminal 33, the interface female pin 53 is adapted to the structure of the interface male pin 34, and the second interface female terminal 54 is adapted to the structure of the first interface male connector 35.

[0083] Step 5: Install the first interface female terminal 33, interface male pin 34 and first interface male insert 35 into the first terminal setting slot, the first terminal through hole and the second terminal through hole respectively to obtain the terminal setting part 1 equipped with the first interface female terminal 33, interface male pin 34 and first interface male insert 35, wherein the first interface female terminal 33 is abutted in the first female terminal chamber by the first female terminal positioning ring 38;

[0084] Step 6: Install the second interface male plug 52, the interface female pin 53, and the second interface female terminal 54 into the third terminal through hole, the second terminal setting slot, and the third terminal setting slot respectively to obtain the charging head female socket 8, wherein the second interface female terminal 54 is abutted in the second female socket by the second female terminal positioning ring 57.

[0085] Step 7: Install the power connection cable 21 into the power cable docking part 2;

[0086] Step 8: Assemble the power cord docking part 2 obtained in step 7 onto the terminal setting part 1 obtained in step 5 to obtain the charging head male head 7, wherein the power connection line 21 is electrically connected to the first interface female terminal 33, the interface male pin 34 and the first interface male plug 35.

[0087] Specifically, the above steps are not in a specific order; the order of the steps can be set according to the actual manufacturing and assembly method.

[0088] The charging connector of the charging pile of the present invention has the following advantages:

[0089] (1) The male charging head and the female charging head are fitted together in a compatible manner, which can enhance the stability and safety of conductive charging, and prevent problems such as poor contact and interface damage caused by loosening of the male charging head and the female charging head, thereby improving the mechanical properties of the charging pile charging connector such as vibration resistance and impact resistance.

[0090] (2) The male connector of the charging head is specifically divided into the terminal setting part, the power cord docking part and the female connector docking part, and the female connector of the charging head is specifically divided into the terminal receiving part and the male connector insertion part. This optimizes the docking compatibility and reliability of the male connector and the female connector of the charging head, establishes an efficient conductive connection, meets the safety requirements of stable charging with high current, and improves the user experience.

[0091] (3) The male charging head innovatively divides the first male connector chamber and the first female connector chamber separately, and sets a set of first interface female terminals, four sets of interface male pins and a set of first interface male prongs in a limited space, reducing the space occupancy of the charging pile charging connector, meeting the requirements for carrying different current amounts, and at the same time, through the female positioning cavity, it plays the role of docking adaptation and hiding between the male charging head and the female charging head.

[0092] (4) The charging head female socket innovatively divides the second male socket and the second female socket separately, and sets a set of second interface male plugs, four sets of interface female pins and a set of second interface female terminals in a limited space, reducing the space occupancy of the charging pile charging connector, meeting the requirements for carrying different current amounts, and at the same time, through the male head positioning cavity, it plays the role of docking adaptation and hiding between the charging head female socket and the charging head male head.

[0093] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention, using the disclosed technical means and content. Therefore, all equivalent changes made based on the shape, structure, and principle of the present invention without departing from the scope of the present invention should be covered within the protection scope of the present invention.

Claims

1. A charging connector for a charging pile, characterized in that, It includes a male charging head and a female charging head socket that are fitted together. The male charging head includes a male head body and a terminal setting part disposed inside the male head body, and a power cord docking part and a female connector docking part are provided in connection with the terminal setting part; The female charging head includes a female head body and a terminal receiving portion disposed inside the female head body, and a male head insertion portion is disposed around the terminal receiving portion; The terminal setting part is adapted to be connected to the terminal receiving part to achieve electrical connection, and the male insertion part is detachably inserted into the female docking part to achieve sealing and locking; The female connector includes a positioning male socket extending from the male connector body. The positioning male socket has a first male chamber and a first female chamber, and a female positioning cavity is formed between the first male chamber and the positioning male socket. A set of first interface female terminals is provided in the first female connector chamber, and four sets of interface male pins and a set of first interface male prongs are provided in the first male connector chamber through the terminal setting part; The terminal receiving portion includes a second male socket and a second female socket. A male positioning cavity is formed between the second male socket and the male insertion portion. The first female socket is adapted to fit into the male positioning cavity to achieve a sealed lock with the second male socket. The second female socket is adapted to fit into the female positioning cavity to achieve a sealed lock with the first male socket. A set of second interface male prongs is provided extending through the terminal receiving portion into the second male socket, and four sets of interface female pins and a set of second interface female terminals are provided through the second female socket. The second interface male prongs are adapted to the first interface female terminals, the interface female pins are adapted to the interface male pins, and the second interface female terminals are adapted to the first interface male prongs to achieve electrical connection. The female connector further includes a first partition, a second partition, and a third partition. The first partition is disposed between the male connector pin and the first female connector terminal. The second partition is disposed between the male connector pin and the first male connector tab. The third partition is disposed between the first male connector tab and the first female connector terminal. The terminal setting portion is respectively provided with a first partition receiving groove, a second partition receiving groove and a third partition receiving groove corresponding to the first partition, the second partition and the third partition.

2. The charging connector for a charging pile according to claim 1, characterized in that, The terminal receiving portion further includes four sets of first connectors and one set of second connectors. The first connectors are used to selectively connect to the male connectors that are compatible with the female connectors. The second connectors are used to selectively connect to the male connectors that are compatible with the female connectors of the second connectors.

3. The charging connector for a charging pile according to claim 2, characterized in that, A first terminal through hole and a second terminal through hole are provided through the terminal setting part, and a first terminal setting groove is provided through the first female connector chamber. The first interface female terminal is placed in the first terminal setting groove, the interface male pin is adapted to be inserted through the first terminal through hole and extends into the first male connector chamber, and the first interface male prong is adapted to be inserted through the second terminal through hole and extends into the first male connector chamber.

4. The charging connector for a charging pile according to claim 3, characterized in that, A third terminal through hole is provided through the terminal receiving part. A second terminal setting slot and a third terminal setting slot are provided through the second female connector chamber, respectively corresponding to the first plug interface and the second plug interface. The second interface male plug is adapted to be inserted into the third terminal through hole and extends into the second male connector chamber. The interface female pin and the second interface female terminal are respectively placed in the second terminal setting slot and the third terminal setting slot.

5. The charging connector for a charging pile according to claim 4, characterized in that, The first female interface terminal is parallel to the male interface pin, and the male interface pin is parallel to the first male interface tab; The second interface male prong is parallel to the interface female pin, and the interface female pin is parallel to the second interface female terminal.

6. The charging connector for a charging pile according to claim 5, characterized in that, A first female terminal positioning ring is fitted onto the first female terminal of the interface, which abuts against the first female terminal chamber; A second female terminal positioning ring is fitted onto the second female terminal of the interface, which abuts against the second female terminal chamber.

7. A method for manufacturing and assembling a charging connector for a charging pile, characterized in that, The charging pile charging connector includes a male charging head and a female charging head socket that are fitted together. Its manufacturing and assembly method includes the following steps: Step 1: Design and manufacture the male head forming mold and the female head forming mold according to the required shape and internal structure of the male head body and the female head body respectively; The male connector body has a terminal setting part, a power cord docking part and a female connector docking part, and the female connector body has a terminal receiving part and a male connector insertion part; Step 2: Use the male head molding die to injection mold the terminal setting part, power line docking part and female connector docking part with the corresponding structure. The terminal setting part and the female connector part are integrally formed. The female connector part has a first male socket and a first female socket. The terminal setting part has four sets of first terminal through holes, one set of second terminal through holes and one set of first terminal setting slots. Step 3: Use the female molding mold to injection mold the terminal receiving part and male insertion part with the corresponding structure; The terminal receiving part and the male insertion part are integrally formed. The terminal receiving part includes a second male insertion chamber and a second female insertion chamber. The terminal receiving part has a set of third terminal through holes, four sets of second terminal setting slots and a set of third terminal setting slots. Step 4: Fabricate several sets of first interface female terminals, interface male pins, first interface male inserts, second interface male inserts, interface female pins, and second interface female terminals; The second interface male connector is adapted to the structure of the first interface female terminal, the interface female pin is adapted to the structure of the interface male pin, and the second interface female terminal is adapted to the structure of the first interface male connector. Step 5: Install the first female interface terminal, the male interface pin, and the first male interface insert into the first terminal setting slot, the first terminal through hole, and the second terminal through hole, respectively, to obtain the terminal setting part equipped with the first female interface terminal, the male interface pin, and the first male interface insert, wherein the first female interface terminal is abutted against the first female interface chamber by the first female terminal positioning ring. Step 6: Install the second interface male plug, the interface female pin, and the second interface female terminal into the third terminal through hole, the second terminal setting slot, and the third terminal setting slot respectively to obtain the charging head female socket, wherein the second interface female terminal is abutted in the second female socket by the second female terminal positioning ring; Step 7: Install the power connection cable into the power cable connector; Step 8: Assemble the power cord connector obtained in step 7 onto the terminal setting part obtained in step 5 to obtain the male charging head, wherein the power connection wires are electrically connected to the first interface female terminal, the interface male pin and the first interface male plug.

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