CN214411661U

CN214411661U - Connector assembly, plug connector and socket connector thereof

Info

Publication number: CN214411661U
Application number: CN202023233570.5U
Authority: CN
Inventors: 王雷; 陈熙
Original assignee: Ecoflow Technology Ltd
Current assignee: Ecoflow Technology Ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-10-15
Anticipated expiration: 2030-12-28

Abstract

The utility model provides a connector assembly, a plug connector and a socket connector thereof, wherein the connector assembly comprises a plug connector and a socket connector which can be electrically connected in a detachable way, the plug connector comprises a first shell, a power needle and a power needle protection wall, and the power needle is arranged on the first shell; the power needle protection wall is arranged on the first shell and surrounds the periphery of the power needle, and a clamping gap is formed between the inner side wall of the power needle protection wall and the outer side wall of the power needle; the socket connector comprises a second shell and a power needle plug-in pipe, the power needle plug-in pipe is arranged on the second shell, the pipe wall of the power needle plug-in pipe is used for being plugged in a clamping clearance fit mode on the plug connector, and a power needle tube used for being plugged in a matched mode with a power needle of the plug connector is arranged in a tube hole of the power needle plug-in pipe. So, can make power needle and power needle tube connect inseparabler, and then promote the electric connection stability of plug connector and socket connector.

Description

Connector assembly, plug connector and socket connector thereof

Technical Field

The utility model relates to a connector technical field especially relates to a connector subassembly and plug connector, socket connector thereof.

Background

Electrical connector assemblies, also known as circuit connectors, are conductor devices used to bridge two conductors on a circuit so that current or signals can flow from one conductor to the other. It is widely used in various electrical lines to function as a connection or disconnection circuit or signal.

The connector assembly is generally divided into a plug connector and a socket connector, when the plug connector and the socket connector are connected in a plugging mode, a power needle arranged on the plug connector and a power needle tube arranged on the socket connector are matched in a plugging mode, when the connector assembly is subjected to an external force, the power needle and the power needle tube are prone to shaking to cause electric connection failure, and then the phenomenon of power failure occurs.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a connector assembly and plug connector, socket connector thereof aims at promoting the connection stability of plug connector and socket connector, avoids taking place the phenomenon of outage.

According to the utility model discloses an aspect, the utility model provides a plug connector, include:

a first housing;

the power needle is arranged on the first shell; and

the power needle protection wall is arranged on the first shell and is arranged around the periphery of the power needle, and a clamping gap used for being matched with the socket connector is formed between the inner side wall of the power needle protection wall and the outer side wall of the power needle.

According to the utility model discloses a second aspect, the utility model provides a socket connector, include:

a second housing; and

the power needle insertion pipe is arranged on the second shell, the pipe wall of the power needle insertion pipe is used for being in clearance fit insertion connection with the clamping on the plug connector, and a power needle tube used for being in fit insertion connection with the power needle of the plug connector is arranged in the pipe hole of the power needle insertion pipe.

According to a third aspect of the present invention, there is provided a connector assembly, the connector assembly comprising a plug connector as described above and a socket connector as described above, the plug connector and the socket connector being detachable from an electrical connection.

The embodiment of the utility model provides a connector assembly and plug connector, socket connector thereof, the pipe wall of the power needle plug-in pipe of socket connector is pegged graft with plug connector centre gripping clearance fit, so, when plug connector and socket connector are pegged graft the cooperation, extrusion force and frictional force between power needle plug-in pipe and the power needle protection wall can reduce the not hard up risk of plug connector and socket connector, prevent to break away from, and then increase the connection reliability of plug connector and socket connector.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic perspective view of a plug connector according to an embodiment of the present invention;

fig. 2 is a perspective view of the plug connector of fig. 1 from another perspective;

fig. 3 is a schematic perspective view of a power supply pin according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a plug connector according to another embodiment of the present invention;

fig. 5 is a schematic perspective view of the plug connector of fig. 4 from another perspective;

fig. 6 is a schematic perspective view of a signal pin according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a receptacle connector according to an embodiment of the present invention;

fig. 8 is a perspective view of the receptacle connector of fig. 7 from another perspective;

fig. 9 is a schematic perspective view of a power needle according to an embodiment of the present invention;

fig. 10 is a schematic perspective view of a receptacle connector according to another embodiment of the present invention;

fig. 11 is a perspective view of the receptacle connector of fig. 10 from another perspective;

fig. 12 is a schematic structural diagram of an elastic contact according to an embodiment of the present invention.

Description of reference numerals:

100. connector assembly

10. A plug connector; 11. a first housing; 112. mounting holes; 114. positioning holes; A. an external connection side; B. an internal line side; 12. a power supply pin; 12a, a positive power supply pin; 12b, a negative power supply pin; 12c, a ground power pin; 121. a power supply pin plugging end; 122. a power supply needle connecting end; 123. a first slit; 124. a power pin step position; 13. a power needle protection wall; 14. a clamping gap; 15. a reinforcing wall; 16. a signal pin; 16a, a signal pin plugging end; 16b, a signal pin connecting end; 162. a signal pin step position; 17. a fixing plate; 18. a signal pin protection wall; 19. an outer protective wall; 192. a card slot;

20. a receptacle connector; 21. a second housing; 212. a first groove; 214. a second groove; 216. a thinning groove; 22. a power supply needle tube; 22a, a positive power supply needle tube; 22b, a negative power supply needle tube; 22c, a grounded power supply needle tube; 221. an accommodating chamber; 222. a power supply needle tube plugging end; 223. the connecting end of the power supply needle tube; 224. a second slit; 23. an elastic contact member; 231. a first elastic part; 232. a second elastic part; 233. a third elastic part; 234. hollowing out; 24. a power supply pin plug tube; 25. a signal needle tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

The present invention relates to a connector assembly, and more particularly, to a connector assembly for connecting an electronic device to a power supply.

When the power needle arranged on the plug connector is matched with the power needle tube arranged on the socket connector in an inserting way, the plug connector and the socket connector can be electrically connected. However, when the power plug is subjected to an external force, the power needle and the power needle tube are prone to shake, so that the electrical connection between the plug connector and the socket connector fails, and further, a power failure phenomenon or a poor contact phenomenon occurs.

To this discovery, the present inventors have improved a connector assembly to enhance the electrical connection stability of the connector assembly and avoid the occurrence of power failure or poor contact. Specifically, the utility model provides a connector assembly, connector assembly includes plug connector and socket connector, plug connector and socket connector can dismantle the electrical connection, plug connector includes first casing, power needle and power needle protection wall, and the power needle is established on first casing; the power needle protection wall is arranged on the first shell and surrounds the periphery of the power needle, and a clamping gap for matching with the socket connector is formed between the inner side wall of the power needle protection wall and the outer side wall of the power needle; the socket connector comprises a second shell and a power needle plug-in pipe, the power needle plug-in pipe is arranged on the second shell, the pipe wall of the power needle plug-in pipe is used for being plugged in a clamping clearance fit mode on the plug connector, and a power needle tube used for being plugged in a matched mode with a power needle of the plug connector is arranged in a tube hole of the power needle plug-in pipe.

The utility model also provides a plug connector, plug connector includes: a first housing; the power needle is arranged on the first shell; and the power needle protection wall is arranged on the first shell and surrounds the periphery of the power needle, and a clamping gap used for being matched with the socket connector is formed between the inner side wall of the power needle protection wall and the outer side wall of the power needle.

The utility model also provides a socket connector, socket connector includes: the power supply needle plug-in pipe is arranged in a pipe hole of the power supply needle plug-in pipe, and a power supply needle tube used for being matched and plugged with a power supply needle of the plug connector is arranged in the pipe hole of the power supply needle plug-in pipe.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 and 2, an embodiment of the present invention provides a plug connector 10, wherein the plug connector 10 can be detachably electrically connected to a socket connector. The plug connector 10 may be mounted on a charging gun or an electronic device, for example, an energy storage device, for charging the charging gun or the electronic device or for data transmission.

The plug connector 10 may include a first housing 11, a power pin 12, and a power pin protection wall 13. The power needle 12 is arranged on the first shell 11; the power pin protection wall 13 is disposed on the first housing 11 and surrounds the power pin 12, and a clamping gap 14 for matching with the socket connector is formed between the inner side wall of the power pin protection wall 13 and the outer side wall of the power pin 12.

Specifically, the first housing 11 may include an external side a and an internal circuit side B, the power pin 12 is established on the first housing 11, and at least a portion of the power pin 12 protrudes from the external side a for electrical connection with an external device. The first housing 11 is for mounting on an electronic apparatus, and the internal wiring side B faces the inside of the electronic apparatus for connecting internal wirings of the electronic apparatus. The power needle protection wall 13 is disposed on the external side a of the first housing 11 for protecting the power needle 12.

Referring to fig. 1, in some embodiments, the power pin protection wall 13 may be in a continuous ring shape and is circumferentially disposed on the periphery of the power pin 12. The cross-sectional shapes of the power supply needle protection wall 13 and the power supply needle 12 can be set to be circular, so that a clamping gap 14 with a uniform width is formed between the outer side wall of the power supply needle 12 and the inner side wall of the power supply needle protection wall 13.

Alternatively, the power supply needle protection wall 13 may further include a plurality of power supply needle protection walls 13 arranged at intervals, and the plurality of power supply needle protection walls 13 are arranged around the periphery of the power supply needle 12.

Optionally, referring to fig. 1, in some embodiments, the height of the power pin 12 protruding from the first housing 11 may be equal to or less than the height of the power pin protection wall 13 protruding from the first housing 11, so that the power pin 12 may be completely accommodated in the area surrounded by the power pin protection wall 13, and the power pin 12 is prevented from contacting with an external component, thereby protecting the power pin 12.

Alternatively, in some embodiments, the plug connector 10 may be provided with an insulating cap (not shown) that is fitted over the power pin 12. The insulation cap can be an insulation plastic part and is sleeved on the power needle 12, so that on one hand, the electric shock hazard caused by the fact that a human body touches the power needle 12 can be prevented; on the other hand, the power supply pin 12 can be isolated from the external environment, so that moisture or dust in the external environment can be prevented from contacting the power supply pin 12 to damage the power supply pin 12.

Further, as shown in fig. 1 to 3, fig. 3 is a schematic perspective view of the power supply pin 12 in fig. 1. The power needle 12 has a power needle inserting/extracting end 121 and a power needle connecting end 122, the power needle inserting/extracting end 121 is disposed in the power needle protection wall 13 for being inserted into the power needle tube, and the power needle connecting end 122 is disposed on one side of the first housing 11 departing from the power needle protection wall 13 for being connected with an electric wire and the like. That is, the power pin inserting and extracting end 121 and the power pin connecting end 122 are respectively disposed at two opposite sides of the first housing 11, the power pin inserting and extracting end 121 is configured to be electrically connected to the socket connector, and the power pin connecting end 122 is configured to be electrically connected to an electric wire or a circuit board.

Under the normal condition, in order to avoid the deformation of the power needle plugging end 121 in the plugging process, the power needle plugging end 121 is usually set to be a solid closed end so as to enhance the structural strength of the power needle plugging end 121 and avoid the stress deformation of the power needle plugging end 121.

In order to facilitate the connection of the power pin connecting end 122 with the electric wire or the circuit board, the power pin connecting end 122 is generally configured to be a hollow opening end to increase the area of the power pin connecting end 122, so as to facilitate the electrical connection of the power pin connecting end 122 with the electric wire or the circuit board.

Due to the small cross-sectional size of the power pin 12, it is generally inconvenient to handle when electrically connecting the power pin connection end 122 with the electric wire. Therefore, as shown in fig. 3, in some embodiments, a first slit 123 for clamping and connecting the electric wire may be provided on the power supply pin connecting end 122, that is, the cross-sectional shape of the power supply pin connecting end 122 may be provided as a non-closed ring structure. So, can make power needle connecting end 122 can take place to warp when receiving the exogenic action for can clamp power needle connecting end 122 and electric wire together through the instrument after the electric wire inserts power needle connecting end 122, with the joint strength and the electric connection stability of promotion power needle 12 and electric wire.

If the power supply pin connection end 122 is electrically connected to the electric wire one by one, when the number of the power supply pins 12 is large, the connection between the power supply pins 12 and the electric wire is complicated, and the assembly efficiency is reduced.

Therefore, in some embodiments, a circuit board may be further disposed in the plug connector 10, the circuit board being disposed on a side of the first housing 11 away from the power pin protection wall 13, that is, on the inner circuit side B of the first housing 11, and electrically connected to the power pin connection end 122.

Specifically, a conductive hole may be provided on the circuit board, and the power pin connection terminal 122 may be inserted into the conductive hole to electrically connect the power pin connection terminal 122 with the circuit board. Alternatively, a pad may be provided on the circuit board, and the power pin connecting terminal 122 may be soldered to a corresponding pad on the circuit board to electrically connect the power pin connecting terminal 122 to the circuit board. In this way, the plurality of power supply pins 12 can be electrically connected to the circuit board, and by electrically connecting the circuit board to the electric wire, the plurality of power supply pins 12 can be electrically connected to the electric wire.

Optionally, in some embodiments, the plug connector 10 may be a dc connector for transmitting dc power. As shown in fig. 1 and 2, the power pins 12 may include two sets of positive power pins 12a and negative power pins 12b, two positive power pins 12a are connected in parallel, and two negative power pins 12b are connected in parallel, so that by providing two sets of corresponding positive power pins 12a and negative power pins 12b that are plugged and matched with each other, and connecting the positive power pins 12a in parallel, and connecting the negative power pins 12b in parallel, the current transmitted by the plug connector 10 may be increased, so as to obtain a larger current amount, thereby improving the current transmission capability.

As shown in fig. 1, in the present embodiment, the two positive power pins 12a are respectively located at the upper and lower ends of the left side, and the two negative power pins 12b are respectively located at the upper and lower ends of the right side, so as to shorten the length of the wire between the two positive power pins 12a arranged in parallel, and shorten the length of the wire between the two negative power pins 12b arranged in parallel.

Alternatively, in other embodiments, three, four or more sets of the positive power pins 12a and the negative power pins 12b may be provided, and at least some of the positive power pins 12a may be connected in parallel with each other, and at least some of the negative power pins 12b may be connected in parallel with each other, so as to further increase the current transmission capability of the plug connector 10.

Alternatively, in other embodiments, the plug connector 10 may be an ac connector for transmitting ac power. Specifically, as shown in fig. 4 and 5, the power supply pin 12 may include a positive power supply pin 12a, a negative power supply pin 12b, and a ground power supply pin 12c for electrical connection with each phase of three-phase alternating current, respectively.

In some embodiments, as shown in fig. 4 and 5, the positive power supply pins 12a, the negative power supply pins 12b and the ground power supply pins 12c may be disposed in a triangular shape, so that the power supply pins 12 are uniformly distributed, and a stable triangular state may be formed, and when the three power supply pins 12 are inserted into and matched with the power supply pin tubes, the three power supply pins 12 may have better structural strength and electrical connection stability.

Further, the first housing 11 is provided with a power supply pin hole (not shown), and the power supply pin 12 is fitted in the power supply pin hole. Because the quantity of power needle 12 is more, if all set up the connection structure with power needle 12 complex in the position department that corresponds with each power pinhole on first casing 11, will certainly make first casing 11's structure comparatively complicated, be not convenient for production and processing.

Therefore, in some embodiments, the power supply pin hole may be a stepped hole, and a power supply pin stepped position 124 matched with the power supply pin hole is disposed on the periphery of the power supply pin 12, as shown in fig. 3, when the power supply pin plugging/unplugging end 121 passes through the power supply pin hole from the internal circuit side B of the first housing 11, the power supply pin stepped position 124 on the power supply pin 12 abuts against a side wall of the power supply pin hole to position the power supply pin 12.

It is further possible to provide that the plug connector 10 comprises a fixing plate (not shown in the figures), which is connected to the first housing 11 and abuts against a side of the power pin step 124 facing away from the power pin hole. Particularly, can connect the fixed plate in the inside line side B of first casing 11, so that the fixed plate butt is in power needle step 124 towards one side of power needle connection end 122, so, through the clamping action of step hole and fixed plate, can be spacing to the axial of power needle 12, be about to power needle 12 be fixed in on first casing 11, avoid power needle 12 to take place to rock relative first casing 11, and, adopt the fixed structure of centre gripping fixed mode can simplify power needle 12, simplify the technology complexity of first casing 11, and can fix when can realizing a plurality of power needles 12 through a fixed plate, in order to promote assembly efficiency.

In some embodiments, as shown in fig. 1 and fig. 2, the plug connector 10 includes a plurality of reinforcing walls 15, the plurality of reinforcing walls 15 are disposed on the first housing 11, and each reinforcing wall 15 is connected between two adjacent power pin protecting walls 13, so that the structural strength of the power pin protecting walls 13 can be enhanced, and the power pin protecting walls 13 are prevented from being deformed by an external force.

Generally, the connector assembly can only be charged, so that the connector assembly has a single function and cannot meet increasingly complex user requirements, such as communication requirements and the like. Therefore, as shown in fig. 1 and 2, in some embodiments, a signal pin 16 may be further disposed on the plug connector 10, and the signal pin 16 is disposed on the first housing 11 for electrically connecting with a signal needle tube 25 (shown in fig. 7).

Specifically, as shown in fig. 6, fig. 6 shows a three-dimensional structure of the signal pin 16. The signal pin 16 is similar to the power pin 12, and also has a signal pin insertion end 16a and a signal pin connection end 16b, the signal pin insertion end 16a is used for inserting and connecting with the signal needle tube 25 for electrical connection, and the signal pin connection end 16b is used for electrical connection with an electric wire or a circuit board.

In order to avoid the deformation of the signal pin plugging end 16a during plugging, the signal pin plugging end 16a is usually set to be a solid closed end, so as to enhance the structural strength of the signal pin plugging end 16a and avoid the stress deformation of the signal pin plugging end 16 a. In order to facilitate the connection of the signal pin connecting terminal 16b with the electric wire or the circuit board, the signal pin connecting terminal 16b is generally provided with a hollow open end to increase the area of the signal pin connecting terminal 16b, thereby facilitating the electrical connection of the signal pin connecting terminal 16b with the electric wire or the circuit board.

Further, the first housing 11 is provided with a signal pin hole (not shown), and the signal pin 16 is fitted in the signal pin hole. Because the number of the signal pins 16 is large, if the connecting structure matched with the signal pins 16 is arranged at the position corresponding to each signal pin hole on the first shell 11, the structure of the first shell 11 is inevitably complex, and the production and the processing are inconvenient.

Therefore, in some embodiments, the signal pin hole may be a stepped hole, and a signal pin step 162 that is matched with the signal pin hole is disposed on the periphery of the signal pin 16, as shown in fig. 6, when the plugging end of the signal pin 16 passes through the signal pin hole from the internal circuit side B of the first housing 11, the signal pin step 162 on the signal pin 16 abuts against a sidewall of the signal pin hole to position the signal pin 16.

It is further possible to provide that the plug connector 10 comprises a fixing plate 17, and the fixing plate 17 is connected to the first housing 11 and abuts against a side of the signal pin step 162 away from the signal pin hole. Specifically, the fixing plate 17 may be connected to the inner circuit side B of the first housing 11, so that the fixing plate 17 abuts against the side of the signal pin step 162 facing the signal pin connecting end 16B, and thus, the axial direction of the signal pin 16 may be limited by the clamping action of the step hole and the fixing plate 17, that is, the signal pin 16 is fixed on the first housing 11, thereby preventing the signal pin 16 from shaking relative to the first housing 11, and the fixing structure of the signal pin 16 may be simplified by clamping and fixing, thereby simplifying the process complexity of the first housing 11, and simultaneously fixing the plurality of signal pins 16 by using one fixing plate 17, thereby achieving the assembling efficiency.

The fixing plate 17 for fixing the signal pin 16 in this embodiment may be the same fixing plate as the fixing plate for fixing the power pin 12 in the above embodiments, so that one fixing plate can fix the signal pin 16 and the power pin 12 at the same time, thereby reducing the assembly complexity and improving the assembly efficiency. Alternatively, the fixing plate 17 for fixing the signal pin 16 may be a fixing plate different from the fixing plate for fixing the power pin 12 in the above-described embodiment to connect the power pin 12, the signal pin 16, and the first housing 11, respectively.

Or, in another embodiment, the signal pin hole may not be set as a stepped hole, but the signal pin 16 and the fixing plate 17 are directly set as an integral structure, that is, the signal pin 16 may be directly welded and fixed on the circuit board to be integrated with the circuit board, and then the signal pin plugging/unplugging end 16a is inserted into and extended out of the signal pin hole from the circuit side B inside the first housing 11, and after the fixing plate 17 and the first housing 11 are fixed by using a screw, an adhesive, or a snap-fit, the signal pin 16 and the first housing 11 may be simultaneously and fixedly connected.

Alternatively, a circuit board may be used as the fixing plate 17, on one hand, the signal pins 16 and the power pins 12 may be fixed by the circuit board, and on the other hand, the signal pins 16 and the power pins 12 may be electrically connected with the wires through the circuit board, so as to simplify the structure of the plug connector 10.

Further, in some embodiments, a signal pin protection wall 18 may be disposed on the external side a of the first housing 11, and the signal pin protection wall 18 may be disposed around the periphery of the signal pin 16 to protect the signal pin 16 from external elements contacting the signal pin 16 to damage the signal pin 16.

In the present embodiment, as shown in fig. 1 and fig. 2, a plurality of power supply pins 12 are arranged at intervals, and an area is reserved in the center of the power supply pin 12. The power pin protection wall 13 is disposed around the power pin 12, a plurality of reinforcing walls 15 may be disposed to sequentially connect the plurality of power pin protection walls 13 to form an annular region in cooperation with at least a portion of the power pin protection wall 13, and the signal pin 16 may be disposed in the annular region surrounded by the power pin protection wall 13 and the reinforcing walls 15. In this manner, the signal pin protection wall 18 can be formed by the reinforcing wall 15 and the power pin protection wall 13, and thus, the structure of the first housing 11 can be simplified and the process complexity of the first housing 11 can be reduced.

Further, as shown in fig. 1, a reinforcing wall 15 may also be provided between the signal pin protection walls 18 to further increase the structural strength of the signal pin protection walls 18.

Since the signal pin 16 and the power pin 12 are both charged bodies, when the distance between the signal pin 16 and the power pin 12 is short, over-voltage discharge and short-circuit accidents are likely to occur, in order to improve the safety performance of the plug connector 10, the signal pin 16 and the power pin 12 are usually arranged at an interval, and a safety distance is provided between the signal pin 16 and the power pin 12, which can be set to be greater than 2-3 mm. Thus, safety accidents caused by short circuit between the signal pin 16 and the power pin 12 can be avoided.

Alternatively, the number of the signal pins 16 in this embodiment may be 8, and the 8 signal pins 16 are all disposed in the area surrounded by the reinforcing wall 15 and at least part of the power pin protection wall 13. The 8 signal pins 16 may be, for example, a voltage interface, a ground interface, a low level signal interface, a high level signal interface, a wake-up interface, an in-place signal interface, and 2 reserved pin bits. The voltage interface may be electrically connected to a 5V voltage, for example, the bit signal interface is used to identify whether the plug connector 10 is plugged into the socket connector, and the 2 reserved pin locations are used for subsequent product development extension, so as to improve compatibility of the plug connector 10.

Further, in some embodiments, as shown in fig. 1, the plug connector 10 includes an outer protection wall 19, and the outer protection wall 19 is disposed on the first housing 11 and surrounds the outer periphery of the power pin protection wall 13.

Specifically, the outer protection wall 19 is disposed on the external side a of the first housing 11, and the outer protection wall 19 is disposed around the periphery of the first housing 11, so as to dispose the power pin protection walls 13 in the area surrounded by the outer protection wall 19, so that when the plug connector 10 is mated with the receptacle connector, a better seal can be formed on the periphery of the power pin protection walls 13.

Further, as shown in fig. 1, a card slot 192 is disposed on the outer protection wall 19, and the card slot 192 is used for detachably connecting with the electronic device. Specifically, when the first housing 11 is connected to the electronic device such as the charging gun, the card slot 192 may be connected to the movable buckle disposed on the electronic device such as the charging gun, so as to improve the connection stability between the first housing 11 and the electronic device such as the charging gun.

It is understood that in other embodiments, the movable buckle may be disposed on the outer protection wall 19, and the card slot 192 may be disposed on the electronic device such as the charging gun, so as to connect the first housing 11 and the electronic device such as the charging gun.

Further, in some embodiments, as shown in fig. 1, the periphery of the first housing 11 is provided with a mounting hole 112, and the mounting hole 112 is used for connecting the plug connector 10 with an electronic device, such as a charging gun.

Specifically, the cross-sectional shape of the first housing 11 in fig. 1 is substantially rectangular, the number of the mounting holes 112 may be four, and four mounting holes 112 are uniformly arranged on the periphery of the first housing 11 around the circumference of the first housing 11 for forming a stable connection on the periphery of the first housing 11.

It is to be understood that when the cross-sectional shape of the first housing 11 is substantially circular, the number of the mounting holes 112 may also be at least two. When the cross-sectional shape of the first housing 11 is substantially triangular, the number of the mounting holes 112 may be three, and three mounting holes 112 are disposed at three vertices of the first housing 11.

Because the number of the mounting holes 112 is large, when the first housing 11 is connected to the electronic device, the first housing 11 needs to be aligned for many times, which increases the difficulty in mounting the first housing 11, and makes the first housing 11 inconvenient to mount.

Therefore, in the present embodiment, a positioning hole 114 may be provided on the first housing 11, and the positioning hole 114 is used for cooperating with a positioning portion provided on the electronic device to position the plug connector 10. Thus, when the first housing 11 is connected to the electronic device by using the fastening member, the positioning hole 114 can be connected to the positioning portion of the electronic device in a fitting manner, so as to align the mounting hole 112 with the mounting hole of the electronic device, without aligning the mounting holes 112 one by one, thereby improving the mounting efficiency of the first housing 11.

Referring to fig. 7 and 8, the present invention further provides a socket connector 20, wherein the socket connector 20 can be detachably electrically connected to the plug connector 10. The receptacle connector 20 includes a second housing 21 and a power pin insertion tube 24. The power needle insertion tube 24 is arranged on the second housing 21, a tube wall of the power needle insertion tube 24 is used for being matched and inserted with the clamping gap 14 on the plug connector 10, and a power needle tube 22 used for being matched and inserted with the power needle 12 of the plug connector 10 is arranged in a tube hole of the power needle insertion tube 24.

Specifically, the power needle 22 has a receiving cavity 221 therein, and the power needle 12 is inserted into the receiving cavity 221. In order to avoid the power supply pin 12 from shaking in the receiving cavity 221, the socket connector 20 may be provided to include resilient contacts 23 (shown in fig. 12). The elastic contact piece 23 is arranged in the accommodating cavity 221, and at least part of the elastic contact piece 23 is in interference fit with the power needle 12 inserted in the power needle tube 22.

Specifically, as shown in fig. 7, 8 and 9, the power supply needle 22 includes a power supply needle plugging end 222 and a power supply needle connection end 223, and the power supply needle plugging end 222 is disposed on one side of the second housing 21 and is used for plugging with the power supply needle plugging end 121. The power supply needle tube connecting end 223 is disposed on the other side of the second housing 21 for connecting with an electric wire or a circuit board or the like. That is, the power supply needle plugging end 222 and the power supply needle connection end 223 are respectively disposed on two opposite sides of the second housing 21, the power supply needle plugging end 222 is used for electrically connecting with the plug connector 10, and the power supply needle connection end 223 is used for electrically connecting with an electric wire or a circuit board.

Because the power needle plugging end 121 and the power needle tube plugging end 222 are electrically connected in a plugging manner, the power needle tube plugging end 222 is a hollow open end. In order to facilitate connection of power supply needle connection end 223 with an electric wire or a circuit board, power supply needle connection end 223 is generally configured as a hollow opening end to increase the area of power supply needle connection end 223, so as to facilitate electrical connection of power supply needle connection end 223 with an electric wire or a circuit board.

Due to the small cross-sectional size of power supply syringe 22, it is often inconvenient to electrically connect power supply syringe connection end 223 to an electrical cord. Therefore, as shown in fig. 7, in some embodiments, a second slit 224 for holding an electric wire may be provided on the power supply needle connection end 223, that is, the cross-sectional shape of the power supply needle connection end 223 may be provided as a non-closed ring-shaped structure. So, can be so that power needle tubing link 223 can take place to warp when receiving the exogenic action for can press from both sides power needle tubing link 223 and electric wire clamp together through the instrument after electric wire inserts power needle tubing link 223, with the joint strength and the electric connection stability of promotion power needle tubing 22 and electric wire.

If power supply needle tube connecting end 223 is electrically connected with the electric wire one by one, when the number of power supply needle tubes 22 is large, the connection of power supply needle tubes 22 and the electric wire is complicated, and the assembly efficiency is reduced.

Therefore, in some embodiments, a circuit board may be further disposed in the plug connector 10, and the circuit board is disposed on a side of the second housing 21 close to the power supply pin connection terminal 223 and electrically connected to the power supply pin connection terminal 223.

Specifically, a conductive hole may be provided in the circuit board, and the power supply pin connection terminal 223 may be inserted into the conductive hole to electrically connect the power supply pin connection terminal 223 with the circuit board. Alternatively, a pad may be disposed on the circuit board, and the power supply needle connection terminal 223 may be soldered to the pad on the circuit board, so as to electrically connect the power supply needle connection terminal 223 to the circuit board. Thus, the plurality of power supply needle tubes 22 can be electrically connected to the circuit board, and the circuit board can be electrically connected to the electric wire, that is, the plurality of power supply needle tubes 22 can be electrically connected to the electric wire.

When the plug connector 10 is a dc connector, as shown in fig. 7, the power supply needle tubes 22 on the socket connector 20 may include two sets of positive power supply needle tubes 22a and negative power supply needle tubes 22b, the two positive power supply needle tubes 22a are connected in parallel, and the two negative power supply needle tubes 22b are connected in parallel, so that the current transmitted by the socket connector 20 may be increased by providing two sets of positive power supply needle tubes 22a and negative power supply needle tubes 22b that are correspondingly plugged and matched with each other, and connecting the positive power supply needle tubes 22a in parallel and connecting the negative power supply needle tubes 22b in parallel, so as to obtain a larger amount of current, thereby improving the current transmission capability.

In this embodiment, the positive power needle 22a is correspondingly inserted into and matched with one positive power needle 12a, and the negative power needle 22b is correspondingly inserted into and matched with one negative power needle 22 b.

Alternatively, in other embodiments, three, four, or more sets of the positive power needle 22a and the negative power needle 22b may be provided, and at least some of the positive power needles 22a may be connected in parallel with each other, and at least some of the negative power needles 22b may be connected in parallel with each other, so as to further increase the current transmission capability of the socket connector 20.

When the plug connector 10 employs an ac connector, as shown in fig. 10 and 11, the power supply needle 22 includes a positive power supply needle 22a, a negative power supply needle 22b, and a ground power supply needle 22c for electrical connection with each phase of three-phase ac power, respectively.

In some embodiments, as shown in fig. 10 and 11, the positive power needle 22a, the negative power needle 22b, and the ground power needle 22c may be disposed in a triangular shape, so that the power needles 22 are uniformly distributed and may form a stable triangular state, and when three power needles 22 are inserted into the power needle 12, the structure strength and the electrical connection stability may be better.

In some embodiments, as shown in fig. 8, the power needle plugging end 222 may be accommodated in the power needle plugging tube 24, that is, the surface of the second housing 21, on which the power needle plugging tube 24 is opened, is not lower than the end of the power needle plugging end 222, so that the power needle plugging tube 24 may be used to protect the power needle 22, prevent the power needle 22 from being damaged due to the contact between the power needle 22 and external elements, and prevent electric shock, and in addition, the outer side wall of the power needle plugging end 222 is supported by the side wall of the power needle plugging tube 24, which may enhance the stability of the power needle 22.

The elastic contact element 23 is clamped between an outer side wall of the power needle plugging end 121 and an inner side wall of the power needle tube plugging end 222, and is in interference fit with the power needle plugging end 121, so that the power needle plugging end 121 is more tightly connected with the elastic contact element 23 and the power needle tube plugging end 222, the phenomenon of separation or poor contact is avoided, and the electrical connection stability of the plug connector 10 and the socket connector 20 is further improved.

In some embodiments, the elastic contact 23 may be configured as a spring, and when the power needle insertion end 121 enters the power needle tube 22, the spring may be pressed to deform so as to avoid the power needle insertion end 121. After the power needle inserting/extracting end 121 is completely inserted into the power needle tube 22, the elastic sheet is deformed and abuts against the outer side wall of the power needle inserting/extracting end 121.

In other embodiments, as shown in fig. 12, the elastic contact 23 includes a first elastic portion 231, a second elastic portion 232, and a third elastic portion 233, and the first elastic portion 231, the second elastic portion 232, and the third elastic portion 233 are connected in sequence along the axial direction of the power source needle 22.

Specifically, the cross-sectional shapes of the first elastic part 231, the second elastic part 232, and the third elastic part 233 perpendicular to the axial direction of the power needle tube 22 are circular rings, that is, the first elastic part 231, the second elastic part 232, and the third elastic part 233 are arranged in a circular tube shape, and the power needle insertion/extraction end 121 is inserted into the first elastic part 231, the second elastic part 232, and the third elastic part 233. By providing the first elastic part 231, the second elastic part 232 and the third elastic part 233 in a circular tube shape, the power needle inserting and extracting end 121 can be uniformly stressed in the circumferential direction.

Further, as shown in fig. 12, the cross-sectional dimension of the second elastic part 232 perpendicular to the axial direction of the power needle tube 22 may be smaller than the cross-sectional dimension of the first elastic part 231 and the third elastic part 233 perpendicular to the axial direction of the power needle tube 22, that is, the second elastic part 232 is protruded toward the power needle inserting/extracting end 121 relative to the first elastic part 231 and the third elastic part 233, so that the second elastic part 232 is in closer contact with the power needle inserting/extracting end 121, and the electrical connection stability is stronger.

In an embodiment, the first elastic portion 231 and the third elastic portion 233 may be configured to be interference-fitted in the accommodating cavity 221 to connect the elastic contact 23 with the power supply needle tube 22, so as to prevent the elastic contact 23 from sliding in the power supply needle tube 22.

Due to the structural strength of the second elastic portion 232, when the power pin inserting/extracting end 121 is inserted into the second elastic portion 232, a large resistance is generated on the power pin inserting/extracting end 121, which is inconvenient for inserting/extracting the plug connector 10. Therefore, in some embodiments, as shown in fig. 12, a hollow 234 may be disposed on the second elastic portion 232 to reduce the structural strength of the second elastic portion 232, so that the second elastic portion 232 is deformed to avoid the power pin plugging end 121.

For example, the hollow 234 may be disposed in a strip shape, and the extending direction of the hollow 234 is disposed along the interval direction between the first elastic portion 231 and the second elastic portion 232, so that the second elastic portion 232 can deform in a direction away from the power pin inserting/extracting end 121 when receiving an outward extrusion acting force.

Furthermore, the cross-sectional dimensions of first elastic portion 231 perpendicular to the axial direction of power source needle tube 22 may be equal or different, and are all larger than the cross-sectional dimensions of second elastic portion 232 perpendicular to the axial direction of power source needle tube 22.

It can be understood that the cross-sectional dimension of the first elastic part 231 perpendicular to the axial direction of the power needle 22 may be smaller than the cross-sectional dimensions of the second elastic part 232 and the third elastic part 233 perpendicular to the axial direction of the power needle 22, so that the first elastic part 231 protrudes toward the power needle inserting and extracting end 121 relative to the second elastic part 232 and the third elastic part 233, so that the first elastic part 231 is in closer contact with the power needle inserting and extracting end 121, and the electrical connection stability is stronger. Or the cross-sectional dimension of the third elastic part 233 perpendicular to the axial direction of the power needle 22 may be smaller than the cross-sectional dimensions of the first elastic part 231 and the second elastic part 232 perpendicular to the axial direction of the power needle 22, so that the third elastic part 233 protrudes toward the power needle inserting/extracting end 121 relative to the first elastic part 231 and the second elastic part 232, and the third elastic part 233 is in closer contact with the power needle inserting/extracting end 121, and the electrical connection stability is stronger.

Further, as shown in fig. 7 and 8, the receptacle connector 20 further includes a signal needle 25, and the signal needle 25 is disposed on the second housing 21 for being inserted into the signal needle 16.

The structure of the signal needle tube 25 and the connection manner with the second casing 21 are substantially the same as the structure of the power needle tube 22 and the connection manner with the second casing 21, please refer to the description in the above embodiments, and the description thereof is omitted here.

Furthermore, as shown in fig. 8, the cross-sectional shape of the second housing 21 is adapted to the shape of the area surrounded by the outer protection wall 19, and when the plug connector 10 and the receptacle connector 20 are plugged, the outer side wall of the second housing 21 abuts against the inner side wall of the outer protection wall 19, so that the outer protection wall 19 can not only shield the connection surface between the plug connector 10 and the receptacle connector 20 to prevent external impurities and the like from entering between the plug connector 10 and the receptacle connector 20, but also can position the receptacle connector 20 by using the outer protection wall 19 to facilitate the plugging and mating of the power supply pin 12 and the power supply needle 22.

In some embodiments, as shown in fig. 8, the second housing 21 is provided with a first groove 212 at a position corresponding to the power supply pin protection wall 13, and the power supply pin protection wall 13 is inserted into the first groove 212.

Specifically, the first groove 212 is disposed around the periphery of the power pin insertion tube 24 and corresponds to the power pin protection wall 13. When the plug connector 10 and the receptacle connector 20 are in plug-in fit, the power pin protection wall 13 is inserted into the first groove 212, and the protrusion between the power pin connection tube 24 and the first groove 212 is inserted into the clamping gap 14, so as to further improve the connection stability of the plug connector 10 and the receptacle connector 20, prevent the power pin 12 and the power pin tube 22 from being deformed when the plug connector 10 and the receptacle connector 20 are tilted, and enable the first housing 11 and the second housing 21 to be in closer contact, so that the power pin 12 and the power pin tube 22, the signal pin 16 and the signal pin tube 25 can be completely inserted together, and increase the contact area.

Further, as shown in fig. 8, a second groove 214 is provided in the second housing 21 at a position corresponding to the plurality of reinforcing walls 15, and the reinforcing walls 15 are inserted into the second groove 214.

Specifically, the second groove 214 is provided to communicate with adjacent two of the first grooves 212, and is provided corresponding to the reinforcing wall 15. When the plug connector 10 and the receptacle connector 20 are mated, the reinforcing walls 15 are inserted into the corresponding second grooves 214 to further improve the connection stability of the plug connector 10 and the receptacle connector 20, so as to prevent the power pins 12 and the power needle tubes 22 from being deformed when the plug connector 10 and the receptacle connector 20 are skewed, and to enable the first housing 11 and the second housing 21 to be in closer contact, so that the power pins 12 and the power needle tubes 22, the signal pins 16 and the signal needle tubes 25 can be completely inserted together, and the contact area is increased.

In general, the first housing 11 and the second housing 21 are both plastic parts injection-molded by using materials such as plastic, and if the first housing 11 and the second housing 21 are thick, shrinkage is likely to occur during injection molding, which causes deformation of the first housing 11 and the second housing 21, and reduces yield of products.

Therefore, in some embodiments, as shown in fig. 8, a thinning groove 216 may be provided on a side of the second housing 21 facing the first housing 11 for thinning the thickness of the second housing 21, so as to keep the thickness of the second housing 21 consistent, avoid shrinkage due to a large local thickness, facilitate processing, reduce material usage, and save cost.

Further, on the basis of the plug connector 10 and the socket connector 20, the present invention provides a connector assembly 100, the connector assembly 100 includes the plug connector 10 and the socket connector 20, and the plug connector 10 and the socket connector 20 can be electrically connected in a detachable manner.

It should be noted that the above-mentioned names for the components of the plug connector 10, the receptacle connector 20 and the connector assembly 100 are only for identification purposes and should not be construed as limiting the embodiments of the present invention.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A plug connector, comprising:

a first housing;

the power needle is arranged on the first shell; and

2. The plug connector according to claim 1, wherein the power pin has a power pin inserting end and a power pin connecting end, the power pin inserting end is disposed in the power pin protection wall and used for being inserted into a power pin tube of the socket connector, the power pin connecting end is disposed on a side of the first housing facing away from the power pin protection wall, and a first slit for facilitating clamping and connecting of a wire is disposed on the power pin connecting end; or

The plug connector comprises an insulating cap, and the insulating cap is sleeved on the power supply needle; or

The plug connector comprises an outer protection wall, the outer protection wall is arranged on the first shell and surrounds the periphery of the power supply pin protection wall, a clamping groove is formed in the outer protection wall, and the clamping groove is used for being detachably connected with electronic equipment; or

The periphery of the first shell is provided with a mounting hole and a positioning hole, the mounting hole is used for connecting the plug connector with electronic equipment, and the positioning hole is used for being matched with a positioning part arranged on the electronic equipment and used for positioning the plug connector.

3. The plug connector of claim 1,

the power supply pins comprise at least two groups of positive power supply pins and negative power supply pins, at least part of the positive power supply pins are connected in parallel, and at least part of the negative power supply pins are connected in parallel; or

The power needle includes anodal power needle, negative pole power needle and ground connection power needle, anodal power needle, negative pole power needle and ground connection power needle are the triangle-shaped setting.

4. The plug connector of claim 1, wherein the plug connector includes signal pins established on the first housing for connection with signal pins of the receptacle connector; the plug connector comprises a plurality of reinforcing walls, the reinforcing walls are arranged on the first shell, each reinforcing wall is connected between two adjacent power pin protecting walls, and the signal pins are arranged in an area surrounded by the power pin protecting walls and the reinforcing walls.

5. A receptacle connector, comprising:

a second housing; and

6. The socket connector according to claim 5, wherein a receiving cavity is formed in the power needle tube; the socket connector comprises an elastic contact piece which is arranged in the accommodating cavity;

the elastic contact piece comprises a first elastic part, a second elastic part and a third elastic part, the first elastic part, the second elastic part and the third elastic part are sequentially connected along the axial direction of the power needle tube, and the cross section size of the second elastic part perpendicular to the axial direction of the power needle tube is smaller than the cross section size of the first elastic part and the third elastic part perpendicular to the axial direction of the power needle tube; the first elastic part and the third elastic part are assembled in the accommodating cavity in an interference mode, the second elastic part is provided with a hollow part, and the extending direction of the hollow part is arranged along the interval direction of the first elastic part and the second elastic part.

7. Socket connector according to claim 5,

the power supply needle tubes comprise at least two groups of positive power supply needle tubes and negative power supply needle tubes, at least part of the positive power supply needle tubes are connected in parallel, and at least part of the negative power supply needle tubes are connected in parallel; or

The power supply needle tube comprises a positive power supply needle tube, a negative power supply needle tube and a grounding power supply needle tube, wherein the positive power supply needle tube, the negative power supply needle tube and the grounding power supply needle tube are arranged in a triangular shape.

8. The socket connector of claim 5, wherein the socket connector comprises signal pins disposed on the second housing for mating with signal pins of the plug connector.

9. A connector assembly, characterized in that the connector assembly comprises a plug connector according to any one of claims 1 to 4 and a socket connector according to any one of claims 5 to 8, the plug connector and the socket connector being detachably electrically connectable.

10. The connector assembly of claim 9,

an outer protection wall is arranged on one side, facing the second shell, of the first shell, the outer protection wall is arranged around the periphery of the power needle protection wall, the shape of the cross section of the second shell is matched with the shape of a region surrounded by the outer protection wall, and the outer side wall of the second shell abuts against the inner side wall of the outer protection wall; and/or

A first groove is formed in the position, corresponding to the power needle protection wall, of the second shell, and the power needle protection wall is inserted into the first groove; and/or

A plurality of reinforcing walls are arranged on one side, facing the second shell, of the first shell, each reinforcing wall is connected between two adjacent power supply needle protection walls, second grooves are formed in positions, corresponding to the reinforcing walls, of the second shell, and the reinforcing walls are inserted into the second grooves; and/or

One side of the second shell facing the first shell is provided with a thinning groove for thinning the thickness of the second shell.