CN204088733U - Sealing ring, connector and electrical appliance kit - Google Patents

Abstract

A sealing ring, a connector and an electrical box. The sealing ring includes an annular main body having a sealing surface and a buckle mechanism arranged on the peripheral outer wall of the annular main body. The connector includes a shell and a sealing ring, wherein the shell includes a base plate, a terminal fixing mechanism is arranged in the center of the base plate, and a sealing ring receiving mechanism is set on the base plate outside the terminal fixing mechanism, and the sealing ring receiving mechanism includes a buckle fixing mechanism, a buckle The mechanism cooperates with the buckle fixing mechanism to lock the sealing ring on the housing. The electrical box includes a box body and a connector. The box body wall is provided with a connector receiving hole, the terminal fixing mechanism on the connector passes through the connector receiving hole on the box body wall, and the substrate of the connector passes through the sealing ring and the box body wall. Sealed connection. According to the sealing ring, the connector and the electrical box of the utility model, the sealing ring can be relatively firmly pre-fixed on the substrate to be sealed, so that storage, transportation and assembly can be facilitated.

Description

Sealing rings, connectors and electrical boxes

technical field

The utility model relates to a sealing ring, a connector and an electrical box.

Background technique

Electrical connectors are used to connect electrical components. In some applications (such as in oil or water), the box (cylinder) containing electrical components needs to be sealed from the outside world, so the electrical connector and the box need to be sealed. Usually, the electrical connector is provided with a sealing ring receiving groove. Before the electrical connector and the box body are installed, the sealing ring needs to be pre-fixed in the sealing ring receiving groove, and the sealing ring and the sealing ring receiving groove are only pre-fixed by clearance fit. fixed. During storage, transportation and assembly, due to lack of sufficient holding force, the sealing ring is easy to come out of the sealing ring receiving groove, thereby reducing the production efficiency. In order to increase the holding force of the sealing ring in the sealing ring receiving groove, ribs are also arranged on the side wall of the sealing ring receiving groove to squeeze the sealing ring, but this improvement increases the holding force to a limited extent, and at the same time brings great inconvenience to the assembly. difficulty.

Utility model content

The object of the present invention is to provide a sealing ring and a connector and an electrical box using the sealing ring. The sealing ring can be relatively firmly pre-fixed on the casing to be sealed.

According to a first aspect of the present invention, there is provided a sealing ring, which includes an annular body having a sealing surface, and a buckle mechanism disposed on the peripheral outer wall of the annular body.

Preferably, the buckle mechanism has a horizontal portion extending outward protruding from the circumferential outer wall of the annular body, a vertical portion protruding from the horizontal portion, and a stepped portion protruding from the vertical portion.

More preferably, a plurality of buckling mechanisms are arranged at intervals on the outer wall of the annular body in the circumferential direction, and the stepped portions of the plurality of buckling mechanisms extend in opposite directions.

More preferably, the annular body has two continuous sealing surfaces, which are respectively arranged on the upper sidewall and the lower sidewall of the annular body. Further preferably, the horizontal part of the buckle mechanism is arranged between the upper and lower side walls of the annular body part connected with the buckle mechanism.

Preferably, the ring-shaped body part connected with the buckle mechanism is biased towards the center of the ring-shaped body.

Preferably, the annular body is formed in one piece with the snap mechanism.

According to the second aspect of the present invention, there is provided a connector, which includes a housing, and also includes the above-mentioned sealing ring, wherein the housing includes a base plate, a terminal fixing mechanism is arranged in the center of the base plate, and a terminal fixing mechanism is arranged on the base plate on the periphery of the terminal fixing mechanism. There is a sealing ring receiving mechanism, and the sealing ring receiving mechanism includes a buckle fixing mechanism, and the buckle mechanism cooperates with the buckle fixing mechanism to lock the sealing ring on the housing.

Preferably, when the snap mechanism has a horizontal portion protruding outward from the circumferential outer wall of the annular body, a vertical portion protruding from the horizontal portion, and a stepped portion protruding from the vertical portion, the snap fixing mechanism includes a snap receiving hole, when the buckle mechanism cooperates with the buckle fixing mechanism, the horizontal part of the buckle mechanism is in contact with the upper edge of the hole wall of the buckle receiving hole, the vertical part of the buckle mechanism is located in the buckle receiving hole, and the The stepped portion extends out of the buckle receiving hole and engages with the lower edge of the wall of the buckle receiving hole.

More preferably, the stepped portion includes a locking surface extending perpendicularly to the snap receiving hole.

Preferably, the sealing ring receiving mechanism further includes an annular receiving groove corresponding to the annular main body.

Preferably, a connection terminal is also included, and the connection terminal is fixed to the housing through a terminal fixing mechanism.

According to a third aspect of the present invention, there is provided an electrical box, including a box body, a connector receiving hole is provided on the box body wall, and the above-mentioned connector is also included, and the terminal fixing mechanism on the connector passes through the box body wall The connector receiving hole on the connector, the substrate of the connector is sealed and connected with the box wall through the sealing ring.

Preferably, a bottom-sealed internally threaded hole is provided on the base plate located in the circumferential direction of the sealing ring receiving mechanism, and a fastener hole corresponding to the internally threaded hole is provided on the box wall around the connector receiving hole. The firmware is firmly connected with the inner threaded hole on the base plate, so that the box body is sealed with the base plate.

More preferably, the base plate of the connector is sealingly connected with the inner wall of the box body.

According to the sealing ring, the connector and the electrical box of the present invention, the sealing ring can be relatively firmly pre-fixed on the substrate to be sealed, so that storage, transportation and assembly can be facilitated.

Description of drawings

Fig. 1 is a schematic front perspective view of a sealing ring according to an embodiment of the present invention;

Fig. 2 is a perspective view of the back side of the sealing ring shown in Fig. 1;

Fig. 3 is a schematic perspective view of the front of the housing of the connector according to an embodiment of the present invention;

FIG. 4 is a perspective view of the back of the housing of the connector shown in FIG. 3;

Fig. 5 is a schematic front perspective view of a connector according to an embodiment of the present invention;

Figure 6 is a perspective view of the back of the connector shown in Figure 5; and

Fig. 7 is a schematic perspective view of an electrical appliance box according to an embodiment of the present invention.

Detailed ways

The sealing ring, connector and electrical box of the present utility model will be described in detail below in conjunction with the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only illustrative illustrations of the present utility model, and are not intended to limit it in any way. Throughout the drawings, the same reference numerals designate the same or similar parts.

Referring to Fig. 1-2, the sealing ring 30 according to the present utility model includes an annular body 31 and a buckle mechanism 32, the buckle mechanism 32 is located on the peripheral outer wall 31a of the ring body 31, and the ring body 31 and the buckle mechanism 32 are generally integrated Forming, the sealing ring 30 can be made of rubber or other materials, as long as it can have a certain amount of deformation under the action of pressure.

The annular main body 31 has upper and lower side walls 31b, 31c. The upper side wall 31b and the lower side wall 31c are respectively provided with continuous annular sealing surfaces 36a and 36b. In the embodiment shown in the figure, the sealing surfaces 36a and 36b has an annular corrugation shape, and the corrugation can be one or more, so that the sealing between the mounting parts can be realized without too much fastening force. The annular body 31 can be square, circular or other closed geometric shapes.

The buckle mechanism 32 has a horizontal portion 33 protruding from the ring body 31 and extending outward from the outer wall 31a, a vertical portion 34 protruding from the horizontal portion, and a stepped portion 35 protruding from the vertical portion. The figure shows that the stepped portion 35 is extended outward, and in other embodiments, the stepped portion 35 may also extend inward. The horizontal portion 33 of the buckle mechanism 32 is disposed between upper and lower sidewalls of an annular body portion 37 connected with the buckle mechanism 32 . In the embodiment shown in the figures, the annular body part 37 combined with the snap mechanism 32 is biased towards the center of the annular body 31 so that the snap mechanism 32 is located within the overall outer ring of the annular body 31, thereby enabling the sealing ring The shape of the 30 has become more compact and space-saving for easy storage and installation.

Referring to accompanying drawings 3-6, the connector according to the present invention mainly includes a housing 10 and a sealing ring 30 . The housing 10 has a base plate 11, and the center of the base plate 11 is provided with a terminal fixing mechanism 14. The terminal fixing mechanism 14 has terminal receiving cavities protruding from both sides of the base plate 11 for fixing the connecting terminals. Therefore, the connector according to the present invention can also be A connection terminal connected to the case 10 is included.

A sealing ring receiving mechanism is provided on the base plate 11 around the terminal fixing mechanism 14 , and the sealing ring receiving mechanism includes a buckle fixing mechanism 13 and an annular receiving groove 12 . The annular receiving groove 12 is used to receive the annular main body 31 of the sealing ring 30 , and the buckle fixing mechanism 13 is used to receive the buckling mechanism 32 , and the sealing ring 30 can be locked on the housing 10 through the cooperation of the two.

In the embodiment shown in FIGS. 3-6 , the buckle fixing mechanism 13 includes a buckle receiving hole 16 . The upper edge of the hole wall is in contact, and the vertical part 34 of the buckle mechanism 32 is located in the buckle receiving hole 16; the step part 35 of the buckle mechanism 32 includes a locking surface 35a, and the locking surface 35a extends vertically to the buckle receiving hole 16, The step portion 35 engages with the lower edge of the buckle receiving hole 16 through the locking surface 35a, so that the sealing ring 30 is relatively firmly locked on the housing 10 and will not fall off easily during transportation and operation. The annular receiving groove 12 is used to receive the annular main body 31 of the sealing ring 30, so its shape corresponds to the annular main body 31, and the two are in a clearance fit during assembly. In some embodiments, the annular receiving groove 12 can also be omitted, only The sealing ring 30 can also be fixed to the housing 10 through the cooperation of the buckle mechanism 32 and the buckle fixing mechanism 13 .

There can be one or more buckle mechanisms 32 of the sealing ring 30. In the embodiment shown in the figure, the buckle mechanisms 32 are arranged symmetrically on opposite sides of the annular body 31, and the stepped parts of the two buckle mechanisms 32 35 extend in the opposite direction. This symmetrical arrangement enables the sealing ring 30 to be more firmly connected to the casing 10 . In other embodiments, there may be three or more snapping mechanisms 32 arranged at intervals.

Referring to FIG. 7 , the electrical box according to the present invention mainly includes a box body 20 and the above-mentioned connector, and the electrical box is used to accommodate electrical components. The substrate 11 of the connector is sealingly connected with the box body 20 through the sealing ring 30 , wherein a connector receiving hole 22 is arranged on the wall of the box body 20 , and the terminal fixing mechanism 14 passes through the connector receiving hole 22 . In the connection mode shown in FIG. 7 , the substrate 11 of the connector is in sealing connection with the inner wall of the box body 20 . Referring also to Figures 3-4, the bottom-sealed internally threaded hole 15 is provided on the base plate 11 located in the peripheral direction of the annular receiving groove 12, and the number of internally threaded holes 15 is not strictly limited. In the embodiment shown in the figure, the internally threaded hole There are four holes 15. The box body 20 around the connector receiving hole 22 has a fastener through hole 24 corresponding to the internally threaded hole 15, after a fastener 23 (such as a screw or a bolt) passes through the fastener through hole 24 from the outside of the box body 20 It is fixedly connected with the inner threaded hole 15 on the base plate 11 , so that the box body 20 is tightly connected with the base plate 11 . This connection mode is not only convenient to operate, but also can realize the sealing between the internal thread hole 15 and the inner space of the electrical box. The electrical components inside the electrical box can be connected to the connecting terminal at one end of the connector through wires, and the connecting terminal is hermetically connected to the terminal fixing mechanism 14, and the other end of the connector outside the electrical box can be connected to the mating connector. Through the above connection, the electrical components inside the electrical box can be electrically connected to the outside, and the inside of the electrical box body 20 can be isolated from the outside, so that external liquid or gas will not penetrate into the electrical box and cause damage to the electrical components.

The specific shapes and configurations of the sealing rings, connectors and electrical boxes described above and shown in the drawings are only exemplary, and those skilled in the art can make various changes or modifications under the teaching of the present utility model , all these modifications do not depart from the scope of the present invention defined by the claims.

Claims (15)

1. A sealing ring, comprising an annular main body, the annular main body has a sealing surface, characterized in that it also includes a buckle mechanism arranged on the circumferential outer wall of the annular main body. 2. The sealing ring according to claim 1, wherein the buckle mechanism has a horizontal portion protruding outward from the circumferential outer wall of the annular body, a vertical portion protruding from the horizontal portion, and a protruding vertical portion extending step part. 3 . The sealing ring according to claim 2 , wherein a plurality of snap-fit mechanisms are arranged at intervals on the circumferential outer wall of the annular body, and the stepped portions of the plurality of snap-fit mechanisms extend in opposite directions. 4 . 4. The sealing ring according to claim 2, wherein the annular body has two continuous sealing surfaces, which are respectively arranged on the upper sidewall and the lower sidewall of the annular body. 5. The sealing ring according to claim 4, wherein the horizontal portion of the snap mechanism is disposed between the upper and lower side walls of the annular body portion connected to the snap mechanism. 6. The sealing ring of claim 1, wherein the portion of the annular body connected to the snap mechanism is biased toward the center of the annular body. 7. The seal ring according to claim 1, wherein the annular body and the buckle mechanism are integrally formed. 8. A connector, comprising a housing, characterized in that it also includes the sealing ring as claimed in any one of claims 1-7, wherein the housing includes a base plate, a terminal fixing mechanism is arranged in the center of the base plate, and a terminal fixing mechanism is arranged on the periphery of the terminal fixing mechanism. A sealing ring receiving mechanism is arranged on the substrate of the sealing ring, and the sealing ring receiving mechanism includes a buckle fixing mechanism, and the buckle mechanism cooperates with the buckle fixing mechanism to lock the sealing ring on the housing. 9. The connector according to claim 8, wherein when the buckle mechanism has a horizontal portion extending outward from the circumferential outer wall of the protruding annular body, a vertical portion extending from the protruding horizontal portion, and a protruding vertical portion extending When the step part of the buckle fixing mechanism includes a buckle receiving hole, when the buckle mechanism cooperates with the buckle fixing mechanism, the horizontal part of the buckle mechanism contacts the upper edge of the hole wall of the buckle receiving hole, and the vertical part of the buckle mechanism The straight part is located in the buckle receiving hole, and the stepped part of the buckle mechanism extends out of the buckle receiving hole and engages with the lower edge of the hole wall of the buckle receiving hole. 10. The connector according to claim 9, wherein the stepped portion comprises a locking surface extending perpendicularly to the snap receiving hole. 11. The connector according to claim 8, wherein the sealing ring receiving mechanism further comprises an annular receiving groove corresponding to the annular main body. 12. The connector according to claim 8, further comprising a connection terminal, the connection terminal is fixed to the housing by a terminal fixing mechanism. 13. An electrical box, comprising a box body, a connector receiving hole is arranged on the wall of the box body, and it is characterized in that it also includes the connector according to any one of claims 8-12, and the terminal fixing mechanism on the connector passes through The connector receiving hole on the box body wall, the substrate of the connector is sealed and connected with the box body wall through the sealing ring. 14. The electrical box according to claim 13, characterized in that, an inner threaded hole with a bottom seal is provided on the base plate located in the circumferential direction of the sealing ring receiving mechanism, and an inner threaded hole with a bottom seal is provided on the box body wall around the connector receiving hole. The holes of the fasteners corresponding to the internally threaded holes are fastened to the internally threaded holes on the base plate through the fasteners, so that the box body and the base plate are hermetically connected. 15. The electrical box according to claim 14, wherein the base plate of the connector is in sealing connection with the inner wall of the box body.