CN219498316U - Direct-current charging socket for electric automobile - Google Patents

Abstract

The utility model discloses a direct current charging socket for an electric automobile, which belongs to the technical field of electric automobile conductive connection devices and comprises a socket main body, wherein the socket main body is provided with a sealing groove, the sealing groove is provided with a sealing piece, the outer side surface of the socket main body is provided with a connecting plate, the connecting plate is connected with a cover seat, the inner side of the cover seat is provided with a sealing gasket, the rear part of the socket main body is provided with a gland, the gland is used for fixing a printed circuit board assembly through a clamping connector, the outer side of the gland is provided with a cable sealing gasket, the outer side of the cable sealing gasket is sleeved with a tail cover, and the tail cover is connected with the outer surface of the socket main body; the gland, the cable sealing gasket and the tail cover are both provided with threading channels, and the threading channels are provided with terminals connected with the cable. Through the sealing member, sealing gasket and cable sealing pad's setting, from the structure realized the inside closed loop seal of socket main part, can effectively avoid electric automobile charging socket by at the risk of steam invasion, prevent electric automobile charging socket damage because of the moisture.

Description

Direct-current charging socket for electric automobile

Technical Field

The utility model belongs to the technical field of electric automobile conductive connection devices, and particularly relates to a direct current charging socket for an electric automobile.

Background

The new energy automobile comprises a pure electric automobile, a range-extended electric automobile, a hybrid electric automobile, a fuel cell electric automobile and a hydrogen engine automobile, and the electric automobile is taken as an important component of the new energy automobile and has obvious market development advantages at present. At present, the direct current charging socket of the electric automobile mostly adopts a circumferential sealing mode that a sealing ring is arranged at an end cover, and the inventor considers that the charging socket of the electric automobile in the sealing mode has the risk of water vapor invasion in the charging socket when the charging socket is used in severe weather, so that the direct current charging socket for the electric automobile needs to be designed.

It should be noted that the information disclosed in the above background section is only for enhancing the understanding of the background of the present disclosure, and thus may include information that does not constitute prior art.

Disclosure of Invention

The inventor finds through research that the electric automobile charging socket in a circumferential sealing mode, wherein the sealing ring is arranged at the end cover, has the risk of water vapor invasion in severe weather, and is easy to damage due to damp.

In view of at least one of the above technical problems, the present disclosure provides a dc charging socket for an electric vehicle, and the specific technical scheme is as follows:

the utility model provides a direct current charging socket for electric automobile, including the socket main part, the outer end of socket main part is equipped with the seal groove of closed loop along the port, be equipped with the sealing member in the seal groove, the outside of seal groove is equipped with the connecting plate along the lateral surface of socket main part, the connecting plate outside is connected with the lid seat, the lid seat outside coupling has the end cover, sealing gasket has been joined in marriage to the inboard of lid seat, sealing gasket's shape is unanimous with the profile of lid seat medial surface, the rear portion of socket main part has been joined in marriage the gland, the gland is equipped with the joint through joint fixed printed circuit board subassembly, the outside of gland is equipped with cable sealing gasket, cable sealing gasket's outline and the interference fit of the inner wall of socket main part, cable sealing gasket's outside cover is equipped with the tail cap, the tail cap is connected with the surface of socket main part; the gland, the cable sealing gasket and the tail cover are both provided with threading channels, and the threading channels are provided with terminals connected with the cable.

In some embodiments of the present disclosure, the seal groove is stepped in shape.

In some embodiments of the disclosure, the cover seat is provided with a step groove, and the sealing element in the step sealing groove is a T-shaped sealing ring.

In some embodiments of the present disclosure, the cap base is hinged with the end cap.

In some embodiments of the disclosure, the inner side surface of the cover seat is provided with a sink groove adapted to the connecting plate.

In some embodiments of the disclosure, through holes are uniformly distributed on the connecting plate, and threaded holes matched with the through holes are formed on the sink.

In some embodiments of the disclosure, the threading channel of the gland is a U-shaped wire harness groove with an outward opening on two opposite sides of the gland, the threading channel of the cable gasket is two reducing holes, the threading channel of the tail cover is two round holes, the diameter of the round holes is not greater than the width of the wire harness groove, the diameter of the reducing holes is smaller than the diameter of the round holes, and the outer end parts of the reducing holes are provided with bosses.

In some embodiments of the disclosure, the diameter of the round hole is smaller than the width of the wire harness groove, the terminal is a reducer, and an O-ring is sleeved at the end with a smaller radius.

In some embodiments of the present disclosure, the clamping head is a mushroom clamp, and the printed circuit board assembly is provided with a bayonet adapted to the mushroom clamp.

In some embodiments of the present disclosure, the bayonet is a circular hole of 3mm diameter.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the sealing piece, the sealing gasket and the cable sealing gasket, the closed-loop sealing of the interior of the socket main body is realized structurally, the risk that the electric automobile charging socket is invaded by water vapor can be effectively avoided, and the electric automobile charging socket is prevented from being damaged due to damp;

2. the sealing gasket can not only effectively realize sealing performance, but also avoid loosening of the socket main body caused by jolt vibration to a certain extent;

3. the cable sealing gasket is arranged, so that not only can circumferential sealing be realized on the inner cavity wall of the socket main body, but also axial sealing can be realized between the gland and the tail cover;

4. the printed circuit board assembly is fixed through the clamping connector, so that the position of the printed circuit board assembly can be relatively fixed, and the displacement of the printed circuit board assembly in the socket main body is avoided.

Drawings

FIG. 1 is a cross-sectional view of example 2 in the structure of the present utility model;

FIG. 2 is a perspective exploded view of example 2 of the structure of the present utility model;

FIG. 3 is a schematic perspective view of a gland according to example 2 of the present utility model;

fig. 4 is a schematic perspective view of a printed circuit board assembly according to embodiment 2 of the present utility model;

the reference numerals in the figures illustrate: 1. a socket main body; 11. sealing grooves; 12. a connecting plate; 121. a through hole; 2. a seal; 3. a cover base; 31. an end cap; 32. sinking grooves; 321. a threaded hole; 4. a sealing gasket; 5. a gland; 51. a clamping joint; 52. a wire bundle groove; 6. a printed circuit board assembly; 61. a bayonet; 7. a cable gasket; 71. a reducing hole; 8. a tail cover; 81. a round hole; 9. and a terminal.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, reference should be made to the accompanying drawings in which embodiments of the utility model are shown, and in which it is apparent that some, but not all embodiments of the utility model are illustrated.

The component parts themselves are numbered herein only to distinguish between the stated objects and do not have any sequential or technical meaning. In this disclosure, the term "coupled" includes both direct and indirect, "as used herein, unless specifically indicated otherwise. In the description of the present application, it should be understood that the azimuth or positional relationship indicated by the azimuth terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the azimuth or positional relationship shown in the drawings, are merely for convenience of description of the present application and brief description, and do not indicate or imply that the apparatus or unit referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.

As shown in fig. 1 to 4 of the drawings, a direct current charging socket for an electric automobile is designed, which comprises a socket main body 1, the socket main body 1 is an integrally formed injection molding piece, a cavity capable of being placed in other structures is arranged in the middle, a closed-loop sealing groove 11 is arranged at the outer end edge port of the socket main body 1, a sealing piece 2 is arranged in the sealing groove 11, a connecting plate 12 is arranged at the outer side edge of the socket main body 1, a cover seat 3 is connected at the outer side of the connecting plate 12, a plugging channel for charging is arranged in the middle of the cover seat 3, an end cover 31 is coupled at the outer side of the cover seat 3, the end cover 31 can be opened and closed as required, a sealing gasket 4 is arranged at the inner side of the cover seat 3, the shape of the sealing gasket 4 is consistent with the outline of the inner side surface of the cover seat 3, when the direct current charging socket disclosed is matched with an automobile, the sealing gasket 4 is positioned between the automobile body and the socket main body 1 to realize the sealing effect of the place, the socket body 1 can be prevented from loosening due to jolt vibration to a certain extent, the rear part of the socket body 1 is provided with the gland 5, the gland 5 is positioned in the cavity of the socket body 1, the middle part of the gland 5 is provided with the clamping connector 51, the gland 5 is used for fixing the printed circuit board assembly 6 through the clamping connector 51, the relative fixing of the position of the printed circuit board assembly 6 can be realized, the displacement of the printed circuit board assembly 6 in the cavity of the socket body 1 is avoided, the cable gasket 7 is arranged on the outer side of the gland 5, the outer contour of the cable gasket 7 is in interference fit with the inner wall of the socket body 1, the circumferential sealing can be realized on the inner cavity wall of the socket body 1, the axial sealing can be realized between the gland 5 and the tail cover 8, the tail cover 8 is sleeved on the outer side of the cable gasket 7, and the tail cover 8 is connected with the outer surface of the socket body 1; the gland 5, all be equipped with the threading passageway on cable seal pad 7 and the tail-hood 8, the terminal 9 of being connected with the cable is furnished with to the threading passageway, through sealing member 2, sealing washer 4 and cable seal pad 7's setting, it is sealed to the inside closed loop of socket main part 1 to have been realized from the structure, can effectively avoid electric automobile to charge the socket by the risk at steam invasion, prevent electric automobile to charge the functional part in the cavity of socket, like printed circuit board subassembly, damage because of the damp, the sealing can reach IP67, be suitable for the adverse circumstances of car.

In the above embodiments, the above technical solutions are implemented by listing 3 examples:

example 1

The embodiment discloses a direct current charging socket for an electric automobile, which comprises a socket main body 1, the socket main body 1 is an integrally formed injection molding piece, a cavity capable of being placed in other structures is formed in the middle of the socket main body 1, a closed-loop sealing groove 11 is formed at the outer end edge of the socket main body 1, a sealing piece 2 is arranged in the sealing groove 11, a connecting plate 12 is arranged at the outer side of the sealing groove 11 along the outer side surface of the socket main body 1, a cover seat 3 is connected to the outer side of the connecting plate 12, a plug-in channel for charging is formed in the middle of the cover seat 3, an end cover 31 is coupled to the outer side of the cover seat 3, the end cover 31 can be opened and closed as required, a sealing gasket 4 is arranged at the inner side of the cover seat 3, when the direct current charging socket is matched with an automobile, the sealing gasket 4 is positioned between the automobile body and the socket main body 1, so that sealing effect of the position can be realized, and release of the socket main body 1 caused by jolt vibration can be avoided to a certain extent, a gland 5 is arranged at the rear part of the socket main body 1, the gland 5 is positioned in the cavity of the socket main body 1, a clamping connector 51 is arranged at the middle part of the gland 5, a printed circuit board assembly 6 is fixed at the middle part, a printed circuit board assembly 6 through the clamping connector assembly 6, an interference cable assembly 6 is fixed at the position of the clamping connector 6, the sealing cable 7 can be prevented from being axially matched with the outer side of the inner side of the main body 8, the inner side of the main body 7, and the inner side of the main body 7 is matched with the sealing cable 7, and the inner cavity 7 is also, the inner side of the sealing cable 7 is matched with the inner cavity 7, and the sealing main body 8, and the sealing cable is can be sealed with the inner side, and the inner side of the sealing part, and the sealing main body 8; the gland 5, all be equipped with the threading passageway on cable seal pad 7 and the tail-hood 8, the terminal 9 of being connected with the cable is furnished with to the threading passageway, through sealing member 2, sealing washer 4 and cable seal pad 7's setting, it is sealed to the inside closed loop of socket main part 1 to have been realized from the structure, can effectively avoid electric automobile to charge the socket by the risk at steam invasion, prevent electric automobile to charge the functional part in the cavity of socket, like printed circuit board subassembly, damage because of the damp, the sealing can reach IP67, be suitable for the adverse circumstances of car.

Wherein, sealing member 2 is O type sealing washer, is equipped with the gluey groove on the connecting plate 12, and the connecting plate 12 outside is glued through gluing in the gluey groove and is glued lid seat 3, and lid seat 3 outside is connected with end cover 31 through the screw thread can be dismantled, and end cover 31 is realized opening and shutting through fully hanging twisting, and joint 51 includes the jack catch of two relative settings, through joint 51 from the fixed printed circuit board subassembly 6 in both sides, gland 5, cable sealing pad 7 and tail cap 8's threading passageway all be circular shape through-hole, and wherein, cable sealing pad 7's through-hole radius is minimum.

Example 2

As shown in fig. 1 to fig. 4, this embodiment discloses a dc charging socket for an electric automobile, and the difference between this embodiment and embodiment 1 is that the shape of the seal groove 11 is a step shape, the cover seat 3 is provided with a step groove, the step groove is adapted to the seal groove 11, and the seal member 2 in the seal groove 11 is a T-shaped seal ring; the cover seat 3 is hinged with the end cover 31, the end cover 31 is opened and closed through a hinge shaft, and a sinking groove 32 matched with the connecting plate 12 is arranged on the inner side surface of the cover seat 3, so that a connecting gap between the cover seat 3 and the connecting plate 12 can be reduced, and meanwhile, the thickness of the connecting plate is reduced; through holes 121 are uniformly distributed on the connecting plate 12, and threaded holes 321 matched with the through holes 121 are formed on the sinking groove 32; the threading channels of the gland 5 are U-shaped wire harness grooves 52 with outward openings, which are arranged on two opposite sides of the gland 5, the terminal 9 can be crimped with the wire harness and then put into the gland 5 by adopting the design of the U-shaped grooves, the U-shaped grooves and the terminal are in interference fit, the fixation is good, and the assembly with the socket main body 1 is very convenient and simple; the threading channel of the cable sealing gasket 7 is two square tooth-shaped reducing holes 71, the threading channel of the tail cover 8 is two round holes 81, the diameter of each round hole 81 is not larger than the width of the wiring harness groove 52, the minimum diameter of each reducing hole 71 is smaller than the diameter of each round hole 81, a boss is arranged at the outer end part of each reducing hole 71 and matched with the threading channel on the tail cover 8, and sealing of the position is achieved; the diameter of the round hole 81 is smaller than the width of the wire harness groove 52, the terminal 9 is a reducer, an O-shaped sealing ring is sleeved at one end of the terminal 9 with a smaller radius, the clamping head 51 is a mushroom clamping head with a center joint, a bayonet 61 matched with the mushroom clamping head is arranged on the printed circuit board assembly 6, the bayonet 61 is a round hole with the diameter of 3mm, the strength of a PCB can be guaranteed, the PCB can be installed quickly, and the reliability is high.

Example 3

The difference between the present embodiment and embodiment 2 is that threaded holes are uniformly distributed on the connecting plate 12, through holes matched with the threaded holes are formed on the countersink 32, two U-shaped wire harness grooves 52 with outward openings are respectively formed on two sides of the gland 5 in a threading way of the gland 5, two stepped reducing holes are formed in the threading way of the cable gasket 7, two round holes 81 are formed in the threading way of the tail cover 8, the diameter of the round hole 81 is not larger than the width of the wire harness groove 52, the minimum diameter of the stepped reducing holes is smaller than the diameter of the round hole 81, and a boss is arranged at the outer end of the reducing hole 71.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. Direct current charging socket for electric automobile, including socket main part (1), its characterized in that: the socket is characterized in that a closed-loop sealing groove (11) is formed in the outer end edge port of the socket main body (1), a sealing piece (2) is arranged in the sealing groove (11), a connecting plate (12) is arranged on the outer side edge surface of the socket main body (1) in the outer side edge of the sealing groove (11), a cover seat (3) is connected to the outer side of the connecting plate (12), an end cover (31) is coupled to the outer side of the cover seat (3), a sealing gasket (4) is arranged on the inner side of the cover seat (3), the shape of the sealing gasket (4) is consistent with the outline of the inner side surface of the cover seat (3), a gland (5) is arranged at the rear part of the socket main body (1), a clamping connector (51) is arranged in the middle of the gland (5), a cable sealing gasket (7) is arranged on the outer side of the gland (5), the outer outline of the cable sealing gasket (7) is in interference fit with the inner wall of the socket main body (1), a tail cover (8) is sleeved on the outer side of the cable sealing gasket (7), and the tail cover (8) is connected with the outer surface of the socket main body (1); the gland (5), the cable sealing gasket (7) and the tail cover (8) are provided with threading channels, and the threading channels are provided with terminals (9) connected with the cable.

2. The direct current charging socket for electric vehicles according to claim 1, wherein the shape of the sealing groove (11) is stepped.

3. The direct current charging socket for the electric automobile according to claim 2, wherein the cover seat (3) is provided with a step groove, the step groove is matched with the sealing groove (11), and the sealing piece (2) in the sealing groove (11) is a T-shaped sealing ring.

4. The direct current charging socket for electric vehicles according to claim 1, characterized in that the cover base (3) is hinged with an end cap (31).

5. The direct current charging socket for electric vehicles according to claim 1, characterized in that the inner side surface of the cover base (3) is provided with a sink (32) adapted to the connection plate (12).

6. The direct current charging socket for the electric automobile according to claim 5, wherein through holes (121) are uniformly distributed on the connecting plate (12), and threaded holes (321) matched with the through holes (121) are formed in the sink (32).

7. The direct current charging socket for the electric automobile according to claim 1, wherein the threading channels of the gland (5) are U-shaped wire harness grooves (52) with outward openings, which are opposite to each other, on two sides of the gland (5), the threading channels of the cable sealing gasket (7) are two reducing holes (71), the threading channels of the tail cover (8) are two round holes (81), the diameter of the round holes (81) is not larger than the width of the wire harness grooves (52), the diameter of the reducing holes (71) is smaller than the diameter of the round holes (81), and bosses are arranged at the outer ends of the reducing holes (71).

8. The direct current charging socket for the electric automobile according to claim 7, wherein the diameter of the round hole (81) is smaller than the width of the wire harness groove (52), the terminal (9) is a reducer pipe, and an O-shaped sealing ring is sleeved at the end of the terminal (9) with a smaller radius.

9. The direct current charging socket for electric vehicles according to claim 1, characterized in that the clamping head (51) is a mushroom clamp, and the printed circuit board assembly (6) is provided with a bayonet (61) adapted to the mushroom clamp.

10. The direct current charging socket for electric vehicles according to claim 9, characterized in that the bayonet (61) is a circular hole of 3mm diameter.