CN221466906U - Waterproof plug and low-voltage connector - Google Patents

Abstract

The utility model belongs to the technical field of plugs, and particularly relates to a waterproof plug and a low-voltage connector, wherein the waterproof plug comprises a shell component and a plug terminal arranged in the shell component; the shell assembly comprises a protective cover, a first sealing ring, a plug connector and a shell; the protective cover is provided with a plug-in column and a containing groove surrounding the plug-in column, and the first sealing ring is sleeved on the plug-in column and is positioned in the containing groove; the plug-in connector comprises a baffle ring and a plurality of plug-in arms which are arranged on the baffle ring at intervals; the plug-in arms are plugged in the plug-in holes, and the baffle ring is used for pressing the first sealing ring in the accommodating groove; the shell is provided with a splicing groove; the plug-in column is plugged in the plug-in groove, and the first sealing ring is abutted with the inner side wall of the plug-in groove. The waterproof plug has good sealing performance and waterproof performance.

Description

Waterproof plug and low-voltage connector

Technical Field

The utility model belongs to the technical field of plugs, and particularly relates to a waterproof plug and a low-voltage connector.

Background

The low voltage connector typically includes a plug and a socket, the plug being plugged into the socket to make electrical connection with the two, the socket typically being soldered to a circuit board (PCBA) of the inverter and also being secured to the inverter housing; after the plug and the socket are inserted, the low-voltage connector is fixed with the circuit board and the inverter shell in a bidirectional mode.

In the prior art, the mounting groove for mounting the sealing ring is formed in the shell of the plug, and a parting line is required to be arranged on the shell due to the design of the mounting groove, so that the waterproof performance of the plug can be reduced by the parting line.

Disclosure of utility model

The utility model solves the technical problem of poor waterproof performance of a plug in the prior art, and provides a waterproof plug and a low-voltage connector.

In view of the above problems, an embodiment of the present utility model provides a waterproof plug, including a housing assembly and a plug terminal installed in the housing assembly;

the shell assembly comprises a protective cover, a first sealing ring, a plug connector and a shell; the protective cover is provided with a plug-in column and a containing groove surrounding the plug-in column, and the first sealing ring is sleeved on the plug-in column and is positioned in the containing groove;

The plug-in connector comprises a baffle ring and a plurality of plug-in arms which are arranged on the baffle ring at intervals; the plug-in arms are plugged in the plug-in holes, and the baffle ring is used for pressing the first sealing ring in the accommodating groove;

The shell is provided with a splicing groove; the plug-in column is plugged in the plug-in groove, and the first sealing ring is abutted with the inner side wall of the plug-in groove.

Optionally, a plurality of inserting grooves are formed in the inner wall of the inserting hole at intervals in an annular mode, the inserting arms are inserted into the inserting grooves in an inserting mode, and the inserting arms are arranged in one-to-one correspondence with the inserting grooves.

Optionally, a plurality of baffles are arranged on the baffle ring, and the baffles compress the first sealing ring in the accommodating groove.

Optionally, an inserting portion is disposed at one end of the housing, which is away from the inserting groove, and the housing assembly further includes a second sealing ring sleeved on the inserting portion.

Optionally, a plug hole penetrating through the plug-in part is further formed in the shell, and the plug hole is communicated with the plug-in groove;

The outer wall of the plug-in part is provided with a first blocking part and a second blocking part which are respectively arranged at intervals, and the first blocking part and the second blocking part extend towards the direction deviating from the plug hole; opposite ends of the second sealing ring are respectively abutted with the first blocking part and the second blocking part.

Optionally, the protection cover is provided with a first buckling part, the shell is provided with a second buckling part, and the protection cover is installed on the shell through the first buckling part and the second buckling part which are mutually clamped.

Optionally, the protection cover is provided with a first connecting hole, the shell is further provided with a second connecting hole, the waterproof plug further comprises a connecting ring, and the connecting ring is connected between the first connecting hole and the second connecting hole.

The utility model also provides a low-voltage connector, which comprises the waterproof plug and a socket matched with the waterproof plug.

Optionally, an inserting part is arranged at one end of the shell, which is away from the inserting groove, and a plug hole penetrating through the inserting part is also arranged on the shell; the socket comprises a base body and a socket terminal arranged on the base body, and a socket groove arranged around the socket terminal is also formed in the base body;

When the waterproof plug is in butt joint with the socket, the plug-in part is plugged in the socket groove, and the socket terminal is plugged in the plug hole and is electrically connected with the plug terminal.

Optionally, the base is further provided with a socket hole, and the socket terminal is inserted into the socket hole;

The socket further comprises a plurality of sealing elements sleeved on the socket terminals, wherein the sealing elements are used for sealing gaps between the socket terminals and inner side walls of the socket holes.

In the utility model, the first sealing ring is sleeved on the plug-in column and is positioned in the accommodating groove; the plug connector comprises a baffle ring and a plurality of plug arms which are arranged on the baffle ring at intervals, the plug arms are plugged in plug holes of the plug posts, and the baffle ring is used for pressing the first sealing ring in the accommodating groove; when the shell is covered on the shell, the plug-in column is plugged in the plug-in groove, and the first sealing ring is abutted with the inner side wall of the plug-in groove, so that the sealing performance and the waterproof performance of the protective cover mounted on the shell are ensured. In addition, the plug connector is arranged on the plug post through a plug arm inserted in the plug hole, and the first sealing ring is pressed in the accommodating groove; the plug connector with the split type design of shield, the lateral wall of spliced pole is smooth surface to need not to set up the parting line on the shield, further improved this waterproof plug's leakproofness and waterproof nature. In addition, the waterproof plug has the advantages of simple structure, low manufacturing cost and convenient disassembly and assembly.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a waterproof plug according to an embodiment of the present utility model;

fig. 2 is a schematic cross-sectional view of a waterproof plug according to an embodiment of the present utility model;

Fig. 3 is a schematic view of a portion of a waterproof plug according to an embodiment of the present utility model;

Fig. 4 is a schematic structural view of a housing of a waterproof plug according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a low voltage connector according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a socket of a low voltage connector according to an embodiment of the present utility model;

Fig. 7 is a schematic structural diagram of a socket terminal of a socket according to an embodiment of the utility model.

Reference numerals in the specification are as follows:

1. A waterproof plug; 11. a housing assembly; 111. a protective cover; 1111. a plug-in column; 1112. a receiving groove; 1113. a plug hole; 1114. a plug-in groove; 1115. a first fastening part; 112. a first seal ring; 113. a plug-in component; 1131. a baffle ring; 1132. a plug arm; 1133. a baffle; 114. a housing; 1141. a plug-in groove; 1142. a plug-in part; 1143. a second fastening part; 1144. a plug hole; 115. a second seal ring; 12. a plug terminal; 13. a connecting ring;

2. a socket; 21. a base; 211. a socket groove; 22. a socket terminal; 23. and a seal.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

As shown in fig. 1 to 4, an embodiment of the present utility model provides a waterproof plug 1 including a housing assembly 11 and a plug terminal 12 mounted in the housing assembly 11;

The housing assembly 11 comprises a protective cover 111, a first sealing ring 112, a plug 113 and a shell 114; the protective cover 111 is provided with a plug column 1111 and a containing groove 1112 surrounding the plug column 1111, and the first sealing ring 112 is sleeved on the plug column 1111 and is positioned in the containing groove 1112; it is understood that the receiving groove 1112 may be an annular groove or the like, and the socket columns 1111 protrude toward the outside of the receiving groove 1112.

The plug column 1111 is provided with a plug hole 1113, and the plug 113 comprises a baffle ring 1131 and a plurality of plug arms 1132 arranged on the baffle ring 1131 at intervals; the plug arm 1132 is plugged into the plug hole 1113, and the baffle ring 1131 is used for pressing the first sealing ring 112 into the accommodating groove 1112; it can be appreciated that the number of the plugging arms 1132 may be set according to actual needs, for example, 3, 4, etc. plugging arms 1132 are provided, and the baffle ring 1131 and the plugging arms 1132 are an integral part; the plug arms 1132 are in interference fit with the plug holes 1113, so that the baffle ring 1131 is mounted on the plug posts 1111, and the baffle ring 1131 is located on the upper portion of the first seal ring 112, so that the retainer ring can compress the first seal ring 112 in the accommodating groove 1112.

The housing 114 is provided with a plugging groove 1141; the plugging column 1111 is plugged into the plugging recess 1141, and the first sealing ring 112 abuts against the inner sidewall of the plugging recess 1141. It will be appreciated that when the protective cover 111 is mounted on the housing 114, the protective cover 111 covers the housing 114, and the plug posts are plugged into the plug grooves 1141, the protective cover 111 may also function to cover the plug grooves 1141.

In the present utility model, the first sealing ring 112 is sleeved on the plugging column 1111 and is located in the accommodating groove 1112; the plug 113 comprises a baffle ring 1131 and a plurality of plug arms 1132 arranged on the baffle ring 1131 at intervals, the plug arms 1132 are plugged into plug holes 1113 of the plug posts 1111, and the baffle ring 1131 is used for pressing the first sealing ring 112 into the accommodating groove 1112; when the housing 114 is covered on the housing 114, the plugging column 1111 is plugged in the plugging recess 1141, and the first sealing ring 112 abuts against the inner side wall of the plugging recess 1141, so that the sealing performance and the waterproof performance of the protective cover 111 mounted on the housing 114 are ensured. In addition, the plug 113 is mounted on the plug column 1111 via a plug arm 1132 plugged into a plug hole 1113, and presses the first sealing ring 112 into the receiving groove 1112; the split design of the plug 113 and the protective cover 111, the outer sidewall of the plug pillar 1111 is a smooth surface, so that a parting line is not required to be arranged on the protective cover 111, and the tightness and the waterproof performance of the waterproof plug 1 are further improved. In addition, the waterproof plug 1 has the advantages of simple structure, low manufacturing cost and convenient disassembly and assembly.

In an embodiment, as shown in fig. 3, a plurality of slots 1114 are disposed on the inner wall of the insertion hole 1113 and are distributed at intervals in a ring shape, the insertion arms 1132 are inserted into the slots 1114, and the insertion arms 1132 are disposed in one-to-one correspondence with the slots 1114. It will be appreciated that the slot 1114 is recessed away from the center of the aperture 1113, such that the plug 113 is not easily rotated after the plug arm 1132 is inserted into the slot 1114, thereby ensuring the stability of the plug 113 inserted into the aperture 1113.

In one embodiment, as shown in fig. 3, a plurality of baffles 1133 are disposed on the baffle 1131 and distributed at intervals in a ring shape, and the baffles 1133 press the first seal ring 112 into the receiving groove 1112. As can be appreciated, the plug arms 1132 are disposed below the stop ring 1131, and the baffles 1133 are disposed laterally of the stop ring 1131; when the plug 113 is plugged into the plug hole 1113, the blocking plate 1133 protrudes outward, so that the blocking plate 1133 can press the first sealing ring 112 into the receiving groove 1112.

In an embodiment, as shown in fig. 1 and 2, an end of the housing 114 facing away from the plugging recess 1141 is provided with a plugging portion 1142, and the housing assembly 11 further includes a second sealing ring 115 sleeved on the plugging portion 1142. It will be appreciated that the mating recess 1141 is disposed on an upper portion of the housing 114, the mating portion 1142 is disposed on a lower portion of the housing 114, and the mating portion 1142 mates with the socket 2, i.e., the plug terminal 12 is electrically connected to the socket 2 after the mating portion 1142 is mated with the socket hole of the socket 2. In this embodiment, the second sealing ring 115 may play a role in sealing the tightness between the waterproof plug 1 and the socket 2, so that the second sealing ring 115 is sleeved on the plugging portion 1142 of the waterproof plug 1, and the second sealing ring 115 is not easy to fall off, thereby having a better waterproof effect.

In an embodiment, as shown in fig. 1, the housing 114 is further provided with a plug hole 1144 penetrating the plugging portion 1142, and the plug hole 1144 communicates with the plugging recess 1141; as can be appreciated, an end of the plug hole 1144 facing the plugging portion 1142 is an opening structure; a portion of the plug terminal 12 is positioned in the plug hole 1144, so that the plug terminal 12 is electrically connected to the socket 2 when the plug portion 1142 and the socket 2 are plugged into each other.

The outer wall of the plug-in portion 1142 is provided with a first blocking portion and a second blocking portion which are separated from each other, and the first blocking portion and the second blocking portion extend towards a direction away from the plug hole 1144; opposite ends of the second sealing ring 115 are respectively abutted against the first blocking portion and the second blocking portion. As can be appreciated, the first blocking portion and the second blocking portion are distributed at intervals along the axial direction of the plugging portion 1142, and the second sealing ring 115 is clamped between the first blocking portion and the second blocking portion, so that an accident that the second sealing ring 115 is not easy to fall off from the second plugging post 1111 occurs, and the waterproof performance of the waterproof plug 1 is further ensured.

In an embodiment, as shown in fig. 1, a first fastening portion 1115 is provided on the protective cover 111, a second fastening portion 1143 is provided on the housing 114, and the protective cover 111 is mounted on the housing 114 through the first fastening portion 1115 and the second fastening portion 1143 that are fastened to each other. It can be appreciated that the first fastening portion 1115 and the second fastening portion 1143 may be a fastening-to-socket fit, a fit between two fasteners, or the like. In this embodiment, when the protective cover 111 is mounted on the housing 114 through the first fastening portion 1115 and the second fastening portion 1143 that are fastened to each other, the plugging post 1111 is plugged into the plugging recess 1141, and the assembly and disassembly operations between the protective cover 111 and the housing 114 are simple.

In an embodiment, as shown in fig. 1, the protective cover 111 is provided with a first connection hole, the housing 114 is further provided with a second connection hole, and the waterproof plug 1 further includes a connection ring 13, and the connection ring 13 is connected between the first connection hole and the second connection hole. As can be appreciated, the first connecting hole is formed on the outer wall of the protective cover 111, the second connecting hole is formed on the outer wall of the housing 114, and the connecting ring 13 is connected between the first connecting hole and the second connecting hole, so that the stability of mounting the protective cover 111 on the housing 114 is further ensured.

As shown in fig. 1, 5 and 6, another embodiment of the present utility model further provides a low voltage connector, which includes the waterproof plug 1 and the socket 2 adapted to the waterproof plug 1.

In an embodiment, as shown in fig. 5 and fig. 6, a plugging portion 1142 is disposed at an end of the housing 114 facing away from the plugging recess 1141, and a plug hole 1144 penetrating the plugging portion 1142 is further disposed on the housing 114; the socket 2 comprises a base 21 and a socket terminal 22 mounted on the base 21, wherein the base 21 is also provided with a socket groove 211 arranged around the socket terminal 22; as can be appreciated, the plug portion 1142 is sleeved with the second seal ring 115; the receptacle terminal 22 protrudes toward one end of the housing 21.

When the waterproof plug 1 is docked with the socket 2, the plugging portion 1142 is plugged into the socket groove 211, and the socket terminal 22 is plugged into the plug hole 1144 and electrically connected with the plug terminal 12. As can be appreciated, the plugging portion 1142 is plugged into the socket recess 211 and abuts against the second seal ring 115 (i.e., the second seal ring 115 is compressed between the plugging portion 1142 and the inner sidewall of the socket recess 211), so that the second seal ring 115 ensures the tightness and the waterproof property when the socket 2 is docked with the waterproof plug 1; the socket terminals 22 protrude into the plug holes 1144 and contact the socket terminals 22, thereby making electrical connection between the socket 2 and the waterproof plug 1.

In one embodiment, as shown in fig. 1, the base 21 is further provided with a socket hole (not shown in the figure), and the socket terminal 22 is inserted into the socket hole; the socket 2 further comprises a plurality of sealing members 23 sleeved on the socket terminals 22, wherein the sealing members 23 are used for sealing gaps between the socket terminals 22 and inner side walls of the socket holes. It will be appreciated that a plurality of sealing grooves are provided on the socket terminal 22 at intervals, and the sealing member 23 may be formed by solidifying sealing glue in the sealing grooves. In this embodiment, the above-mentioned plurality of sealing members 23 arranged at intervals are disposed on the socket terminal 22, so that the socket 2 has a plurality of waterproof functions, and the waterproof level of the socket 2 is further improved; in a specific embodiment, the waterproof level of the socket 2 may reach IP68, IP6k9k, etc.

The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A waterproof plug, comprising a housing assembly and a plug terminal mounted in the housing assembly;

the shell assembly comprises a protective cover, a first sealing ring, a plug connector and a shell; the protective cover is provided with a plug-in column and a containing groove surrounding the plug-in column, and the first sealing ring is sleeved on the plug-in column and is positioned in the containing groove;

The plug-in connector comprises a baffle ring and a plurality of plug-in arms which are arranged on the baffle ring at intervals; the plug-in arms are plugged in the plug-in holes, and the baffle ring is used for pressing the first sealing ring in the accommodating groove;

The shell is provided with a splicing groove; the plug-in column is plugged in the plug-in groove, and the first sealing ring is abutted with the inner side wall of the plug-in groove.

2. The waterproof plug according to claim 1, wherein a plurality of annular inserting grooves are formed in the inner wall of the inserting hole at intervals, the inserting arms are inserted into the inserting grooves, and the inserting arms are arranged in one-to-one correspondence with the inserting grooves.

3. The waterproof plug according to claim 1, wherein a plurality of baffles are arranged on the baffle ring in an annular interval, and the baffles compress the first sealing ring in the accommodating groove.

4. The waterproof plug according to claim 1, wherein an end of the housing facing away from the insertion groove is provided with an insertion portion, and the housing assembly further comprises a second seal ring sleeved on the insertion portion.

5. The waterproof plug according to claim 4, wherein a plug hole penetrating through the plug-in portion is further formed in the housing, and the plug hole communicates with the plug-in groove;

The outer wall of the plug-in part is provided with a first blocking part and a second blocking part which are respectively arranged at intervals, and the first blocking part and the second blocking part extend towards the direction deviating from the plug hole; opposite ends of the second sealing ring are respectively abutted with the first blocking part and the second blocking part.

6. The waterproof plug according to claim 1, wherein the protective cover is provided with a first fastening portion, the housing is provided with a second fastening portion, and the protective cover is mounted on the housing through the first fastening portion and the second fastening portion which are fastened to each other.

7. The waterproof plug according to claim 1, wherein the protective cover is provided with a first connection hole, the housing is further provided with a second connection hole, and the waterproof plug further comprises a connection ring connected between the first connection hole and the second connection hole.

8. A low voltage connector comprising a waterproof plug according to any one of claims 1 to 7 and a socket adapted to the waterproof plug.

9. The low voltage connector of claim 8, wherein a plug portion is provided at an end of the housing facing away from the plug recess, and a plug hole penetrating the plug portion is further provided in the housing; the socket comprises a base body and a socket terminal arranged on the base body, and a socket groove arranged around the socket terminal is also formed in the base body;

When the waterproof plug is in butt joint with the socket, the plug-in part is plugged in the socket groove, and the socket terminal is plugged in the plug hole and is electrically connected with the plug terminal.

10. The low voltage connector of claim 9, wherein the housing further has a socket hole, the socket terminal being inserted into the socket hole;

The socket further comprises a plurality of sealing elements sleeved on the socket terminals, wherein the sealing elements are used for sealing gaps between the socket terminals and inner side walls of the socket holes.