New energy automobile charging socket capable of efficiently draining water at front end

Abstract

The utility model discloses a new energy automobile charging socket capable of efficiently draining water at the front end. The charging socket comprises a plug core module and a tail wire outlet module connected to the rear end of the plug core module. The center of a front end cylinder of an insertion core shell of the insertion core module is provided with a first insertion hole of a shaft sleeve grounding pin, the lower end and the left and right sides are provided with second insertion holes of shaft sleeve power pins, and the upper end is provided with a third insertion hole of a shaft sleeve signal pin. The hole walls of the first insertion hole, the second insertion hole and the third insertion hole are provided with a first drainage groove, a second drainage groove and a third drainage groove in the axial direction respectively. An annular inserting groove is formed between a front end ring and a front end column body of the inserting core shell, drainage holes are formed in the inner side of the lower end wall of the front end ring, the inserting groove is communicated with the drainage grooves, the tail end of the inserting groove is communicated with the drainage holes, and front end drainage is formed. The utility model has the advantages of high drainage efficiency and complete drainage; and the waterproof safety level is high.

Description

Technical Field

[0001] The utility model relates to the field of electrical connection, and particularly to a new energy vehicle charging socket with efficient front-end drainage. Background Art

[0002] With the development of new energy electric vehicles, the performance requirements and protection requirements for new energy vehicle charging sockets are getting higher and higher, such as drainage efficiency and waterproof risk control requirements. At present, the waterproof structures of charging sockets on the market are all provided with axial drainage holes at the rear ends of each plug hole of the plug core housing, and each drainage hole converges to the drainage groove at the rear end of the plug core housing and is discharged; as described in the rear drainage structure of a new energy vehicle charging socket drainage structure in Chinese Patent CN219874203U, its defects are as follows: First, the drainage flows from front to back, resulting in slow drainage and low drainage efficiency; Second, the water at the front end cannot be completely discharged, and there is a small amount of water residue, which may cause a conductivity problem. Moreover, there is a circuit board near the rear end of the drainage groove, and there is a leakage at the connection. Once water seeps at the connection, it is very likely to cause a circuit short-circuit accident, thereby reducing the waterproof level of the charging socket. Summary of the Utility Model

[0003] In order to solve one or more of the above problems, the utility model provides a new energy vehicle charging socket with efficient front-end drainage.

[0004] According to one aspect of the utility model, the new energy vehicle charging socket with efficient front-end drainage includes: a plug core module and a tail wire-out module connected to the rear end of the plug core module;

[0005] A first plug hole for a sleeve ground pin is provided at the center of the front column of the plug core housing of the plug core module, second plug holes for sleeve power pins are provided at the lower end and on the left and right, and a third plug hole for a sleeve signal pin is provided at the upper end. Axial first drainage grooves, second drainage grooves, and third drainage grooves are respectively provided on the hole walls of the first plug hole, the second plug hole, and the third plug hole;

[0006] A circular plugging groove is provided between the front ring and the front column of the plug core housing. A drainage hole is provided on the inner side of the lower end wall of the front ring. The plugging groove communicates with each drainage groove and its end communicates with the drainage hole, forming front-end drainage.

[0007] In some embodiments, the first drainage groove, the second drainage groove, and the third drainage groove respectively axially penetrate the hole wall of the plug hole, forming an axial notch that is pulled through from the inside to the outside on the front side.

[0008] In some embodiments, the drainage hole is a rectangular through hole vertically penetrating the center of the inner lower ring wall of the front ring.

[0009] In some embodiments, a first insertion hole is provided at the center of the front-end cylinder. An inclined downward first drainage groove is provided near the center on the lower hole wall of the first insertion hole. The first drainage groove directly penetrates through the lower hole wall of the second insertion hole below and communicates with the insertion groove through its second drainage groove.

[0010] In some embodiments, two third insertion holes are symmetrically provided on the front-end cylinder. Third drainage grooves inclined inward are symmetrically provided at the lower ends of the two third insertion hole walls. The third drainage grooves directly penetrate through the upper hole wall of the first insertion hole.

[0011] In some embodiments, two second insertion holes are symmetrically provided directly below the first insertion hole and two second insertion holes are symmetrically provided on the left and right. A vertically downward second drainage groove is provided on the lower hole wall of the second insertion hole directly below. Small-angle inclined downward second drainage grooves are symmetrically provided on the lower hole walls of the second insertion holes on the left and right. Each second drainage groove directly communicates with the insertion groove.

[0012] In some embodiments, an insulating cap is sleeved on the front-end shaft of the power pin.

[0013] In some embodiments, a step is provided between the power pin and the signal pin to increase the creepage distance.

[0014] In some embodiments, the first insertion hole, the second insertion hole, and the third insertion hole are integrally injection-molded with a pin seal ring at the rear end.

[0015] In some embodiments, the ferrule housing and the pin seal ring are integrally injection-molded and vulcanized from liquid silicone.

[0016] This new energy vehicle charging socket with efficient front-end drainage realizes front-end drainage from top to bottom. Its third insertion hole, first insertion hole, and second insertion hole are arranged from top to bottom. The third drainage groove of the third insertion hole flows to the first insertion hole, and then the water of both flows to the second insertion hole through the first drainage groove of the first insertion hole. The water of the three flows to the insertion groove through the second drainage groove of the second insertion hole and is then discharged through the drainage hole directly below, thus forming a front-end drainage structure from top to bottom. Its beneficial effects are as follows: First, the vertical flow of drainage from top to bottom can quickly flow out of the ferrule housing under the action of its own gravity, and the drainage efficiency is high. Second, compared with front-back drainage, up-down drainage has a natural outward trend, without water accumulation or residue, and there is no problem of conductive residue. Moreover, it does not flow to the rear end, and has a high protection level for the circuit board. Therefore, the charging socket has a safer and higher protection level. Third, this structure is simple, reduces the difficulty of mold processing, and can reduce the product cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional schematic diagram of a new energy vehicle charging socket with efficient front-end drainage according to an embodiment of the present invention;

[0018] Figure 2 is Figure 1 a three-dimensional schematic diagram of the ferrule module shown;

[0019] Figure 3 is Figure 2 a front view schematic diagram of the ferrule module shown;

[0020] Figure 4 is Figure 2 a three-dimensional schematic diagram of the ferrule housing shown;

[0021] Ferrule module 01, ferrule housing 1, front-end cylinder 10, first socket hole 101, second socket hole 102, third socket hole 103, socket slot 104, first drainage groove 105, second drainage groove 106, third drainage groove 107, front-end ring 11, drainage hole 111, first ear plate 12; grounding pin 2; power pin 3; signal pin 4; pin seal ring 5;

[0022] Tail wire outlet module 02, adapter housing 021, second ear plate 022;

[0023] Flange panel 03, connecting support leg 031. Detailed implementation manners

[0024] The following further describes the present utility model in detail with reference to the accompanying drawings. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0025] Figures 1 to 4 Schematically shows a new energy vehicle charging socket with efficient front-end drainage according to an embodiment of the present utility model. As shown in the figure, the new energy vehicle charging socket with efficient front-end drainage includes: a ferrule module 01 and a tail wire outlet module 02 connected to the rear end of the ferrule module 01;

[0026] The front-end cylinder 10 of the ferrule housing 1 of the ferrule module 01 is provided with a first socket hole 101 for the sleeve grounding pin 2 at the center, a second socket hole 102 for the sleeve power pin 3 at the lower end and a third socket hole 103 for the sleeve signal pin 4 at the upper end. Axial first drainage groove 105, second drainage groove 106 and third drainage groove 107 are respectively provided on the hole walls of the first socket hole 101, the second socket hole 102 and the third socket hole 103. Among them, the first drainage groove 105, the second drainage groove 106 and the third drainage groove 107 are preferably arranged to axially penetrate the hole walls of the socket holes respectively, forming an axially through notch that is pulled through from the inside to the outside.

[0027] There is an annular insertion slot 104 between the front end ring 11 and the front end cylinder 10 of the ferrule housing 1. A drain hole 111 is provided on the inner side of the lower end wall of the front end ring 11. The insertion slot 104 communicates with each drain groove and its end communicates with the drain hole 111, forming a front end drainage structure. The drain hole 111 is preferably set as a rectangular through hole vertically penetrating the center of the inner lower ring wall of the front end ring 11.

[0028] The new energy vehicle charging socket with efficient front end drainage realizes front end drainage from top to bottom. Its third insertion hole 103, first insertion hole 101, and second insertion hole 102 are arranged from top to bottom. The water in the third drainage groove 107 of the third insertion hole 103 flows to the first insertion hole 101, and then the water from both flows to the second insertion hole 102 through the first drainage groove 105 of the first insertion hole 101. The water from all three flows to the insertion slot 104 through the second drainage groove 106 of the second insertion hole 102, and then is discharged through the drain hole 111 directly below, thus forming a front end drainage structure from top to bottom. Its beneficial effects are as follows: First, the vertical flow of drainage from top to bottom can quickly flow out of the ferrule housing 1 under the action of its own gravity, and the drainage efficiency is high; Second, compared with front and back drainage, up and down drainage has a natural outward trend, without water accumulation or residue, and there is no problem of conductive water residue; moreover, it does not flow to the back end, and has a high protection level for the circuit board. Therefore, the charging socket has a safer and higher protection level; Third, the structure is simple, reducing the difficulty of mold processing and being able to reduce product costs.

[0029] Furthermore, a first insertion hole 101 is provided at the center of the front end cylinder 10. An inclined downward first drainage groove 105 is provided near the center of the lower hole wall of the first insertion hole 101. The first drainage groove 105 directly penetrates the hole wall of the second insertion hole 102 below and communicates with the insertion slot 104 through its second drainage groove 106. Its beneficial effect is that the first drainage groove 105 provided has better drainage efficiency.

[0030] Preferably, two third insertion holes 103 are symmetrically provided on the front end cylinder 10. Third drainage grooves 107 inclined inward are symmetrically provided at the lower ends of the hole walls of the two third insertion holes 103. The third drainage grooves 107 directly penetrate the upper hole wall of the first insertion hole 101. The third insertion hole 103, the third drainage groove 107, the first insertion hole 101, as well as the second drainage groove 106, the insertion slot 104, and the drain hole 111 form an internal drainage structure. Its beneficial effect is that the third drainage groove 107 provided has better drainage efficiency.

[0031] Preferably, two second insertion holes 102 are symmetrically provided at the exact lower end of the first insertion hole 101 and two second insertion holes 102 are symmetrically provided on the left and right sides. Vertical downward second drainage grooves 106 are provided on the lower hole walls of the two second insertion holes 102 directly below, and second drainage grooves 106 inclined downward at a small angle are symmetrically provided on the lower hole walls of the two second insertion holes 102 on the left and right sides. Each second drainage groove 106 is directly connected to the insertion slot 104; the first drainage groove 105 is inclined and communicates with one of the two second insertion holes 102 directly below. The beneficial effect is that the second drainage grooves 106 provided in this way have better drainage efficiency.

[0032] Furthermore, an insulating cap is sleeved on the front end shaft of the power pin 3. Preferably, the ground pin 2, the power pin 3, and the signal pin 4 are electrically connected to the integrated circuit board, and the rear ends of the ground pin 2 and the power pin 3 are fixed to the rear mounting plate. The beneficial effect is that the insulating cap improves the safety protection level.

[0033] Preferably, steps are provided in the middle of the power pin 3 and the signal pin 4 to increase the creepage distance.

[0034] Furthermore, a pin seal ring 5 is integrally injection-molded and connected to the rear ends of the first insertion hole 101, the second insertion hole 102, and the third insertion hole 103. Preferably, the pin seal ring 5 is made of silica gel, and the pin core housing 1 and the pin seal ring 5 are integrally injection-molded and vulcanized with liquid silica gel. The beneficial effect is that the pin seal ring 5 provided in this way has better sealing performance, prevents water vapor from diffusing backward to the circuit area, realizes the integration of parts at the same time, reduces the number of part assemblies, improves production efficiency, and reduces product abnormalities caused by assembly problems.

[0035] Furthermore, it further includes a flange panel 03. The four corners of the flange panel 03 are directly connected to the vehicle body sheet metal by screws; the connecting feet 031 at the rear end of the flange panel 03, the first ear plates 12 at the four corners of the rear end of the pin core housing 1 of the pin core module 01, and the second ear plates 022 at the four corners of the front end of the adapter housing 021 of the tail wire outlet module 02 are detachably connected into one body by four threaded parts. The beneficial effects are as follows: First, the flange panel 03 and the pin core module 01 are two independent modules, which can be compatible with different vehicle body sheet metals, and different flange panels 03 can be replaced without changing other modules, improving the versatility of parts; Second, three modules are provided, and parts can be quickly replaced according to the customer's choice to match various customer needs, improving production efficiency, facilitating later maintenance and after-sales service, and being suitable for automated assembly at the same time, reducing assembly man-hours, improving production efficiency, and reducing product abnormalities caused by humans.

[0036] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A new energy vehicle charging socket with efficient front-end drainage, characterized in that, Including: a ferrule module (01) and a tail wire-out module (02) connected to the rear end of the ferrule module (01); At the center of the front column (10) of the ferrule shell (1) of the ferrule module (01), there is a first socket hole (101) for the sleeve ground pin (2), second socket holes (102) for the sleeve power pins (3) are provided at the lower end and on the left and right, and a third socket hole (103) for the sleeve signal pin (4) is provided at the upper end. Axial first drainage grooves (105), second drainage grooves (106), and third drainage grooves (107) are respectively provided on the hole walls of the first socket hole (101), second socket holes (102), and third socket hole (103); A ring-shaped socket groove (104) is provided between the front ring (11) and the front column (10) of the ferrule shell (1). A drainage hole (111) is provided on the inner side of the lower end wall of the front ring (11). The socket groove (104) communicates with each drainage groove and its end communicates with the drainage hole (111) to form front-end drainage.

2. The new energy vehicle charging socket with efficient front-end drainage according to claim 1, characterized in that, The first drainage groove (105), second drainage groove (106), and third drainage groove (107) respectively axially penetrate through the hole wall of the socket hole, forming an axial notch that is pulled through from the inside to the outside in the front view.

3. The new energy vehicle charging socket with efficient front-end drainage according to claim 2, characterized in that, The drainage hole (111) is a rectangular through hole vertically penetrating the center of the inner lower ring wall of the front ring (11).

4. The new energy vehicle charging socket with efficient front-end drainage according to any one of claims 1 to 3, characterized in that, One first socket hole (101) is provided at the center of the front column (10). An inclined downward first drainage groove (105) is provided on the lower hole wall of the first socket hole (101) near the center. The first drainage groove (105) directly penetrates through the hole wall of the second socket hole (102) below and communicates with the socket groove (104) through its second drainage groove (106).

5. The new energy vehicle charging socket with efficient front-end drainage according to claim 4, characterized in that, Two third socket holes (103) are symmetrically provided on the front column (10). Third drainage grooves (107) inclined inward are symmetrically provided on the lower ends of the hole walls of the two third socket holes (103). The third drainage grooves (107) directly penetrate through the upper hole wall of the first socket hole (101).

6. The new energy vehicle charging socket with efficient front-end drainage according to claim 5, characterized in that, Two second socket holes (102) are symmetrically provided directly below the first socket hole (101) and two second socket holes (102) are symmetrically provided on the left and right. A vertically downward second drainage groove (106) is provided on the lower hole wall of the second socket hole (102) directly below, and second drainage grooves (106) inclined downward at a small angle are symmetrically provided on the lower hole walls of the second socket holes (102) on the left and right. Each second drainage groove (106) directly connects to the socket groove (104).

7. The new energy vehicle charging socket with efficient front-end drainage according to claim 1, wherein The front end of the power pin (3) is sleeved with an insulating cap.

8. The new energy vehicle charging socket with efficient front-end drainage according to claim 1, characterized in that, A step is provided between the power pin (3) and the signal pin (4) to increase the creepage distance.

9. The new energy vehicle charging socket with efficient front-end drainage according to claim 1, characterized in that The rear ends of the first socket hole (101), second socket holes (102), and third socket hole (103) are integrally injection-molded with a pin seal ring (5).

10. The new energy vehicle charging socket with efficient front-end drainage according to claim 9, characterized in that The ferrule shell (1) and the pin seal ring (5) are integrally injection-molded and vulcanized from liquid silicone.

Images