TW202109996A - Connector with sealing member on contact surface - Google Patents

Abstract

To provide a connector that can reliably and easily attach a sealing member to a contact surface by a simple structure. On the contact surface of a housing with respect to a contact object, a housing groove having a concave shape in the direction opposite to the contact direction with respect to the contact object and having a polygonal shape in the surface direction of the contact surface is provided in a circumferential shape. At least at the corner of the accommodation groove having the polygonal shape, a plurality of sandwiching means for sandwiching the seal member accommodated in the accommodation groove are provided.

Description

Connector provided with sealing member on abutting surface

The present invention relates to a connector provided with a sealing member on the abutting surface, and more specifically to a connector having a receiving groove for accommodating the sealing member on the abutting surface.

Japanese Patent Application Laid-Open No. 2008-60730 (Patent Document 1) discloses an example of a connector in which a sealing member is provided on the contact surface. The disclosed connector can be installed in the mounting hole of the sheet body for the user, and includes: a synthetic resin housing, a terminal fitting housed in the housing, and a sealing member that can be in close contact with the peripheral edge of the mounting hole . The housing is provided with: a terminal holding portion for holding the terminal fittings, and a cover portion into which the counterpart connector is fitted. At the front end of the cover portion, a protrusion is formed on the abutting surface of the plate of the abutted object. The edge portion is provided on the entire circumference of the cover portion. The flange portion has a hole portion, and a ring-shaped sealing member is attached to the cover hole portion. When the connector is attached to the mounting hole of the plate, it can be in close contact with a predetermined portion of the plate.

In order to install the sealing member on the housing, the sealing member is provided with an outward projecting portion protruding outward and an inward projecting portion projecting inward, and correspondingly, the flange portion of the housing is provided with: receiving outward The outward hole of the protrusion and the inward hole that accommodates the inward protrusion. [Prior Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Publication No. 2018-60730

[Problem to be solved by invention]

In the connector of Patent Document 1, a flange portion is provided with a hole in order to attach a sealing member to the contact surface, and corresponding to this, a plurality of protrusions and the like suitable for the shape of the hole are provided in the sealing member. However, such a complicated structure leads to an increase in the size of the connector and the sealing member, the complexity of the manufacturing and assembly process, and a significant increase in the manufacturing cost. The present invention was created to solve such problems in the prior art, and aims to provide a connector that can reliably and easily attach a sealing member to a contact surface with a simple structure. [Technical means to solve the problem]

In order to solve the above-mentioned problems, a connector according to one aspect of the present invention is characterized in that the abutment surface of the housing with respect to the abutted object is provided with a ring shape facing the abutment with respect to the abutted object. A recessed shape is formed in the opposite direction, and a polygonal receiving groove is formed in the surface direction of the abutting surface, and at least a corner of the polygonal receiving groove is provided with a plurality of sealing members that are accommodated in the receiving groove. Means of hijacking. According to the connector of this aspect, since at least the corner of the receiving groove provided on the contact surface is provided with a pinching means for pinching the sealing member, the connector and the sealing member are not made into a complicated structure, and the sealing member can be made It is reliably and easily installed on the abutting surface.

In the connector of the above aspect, the connector further has a through hole that can communicate with the hole provided in the abutted object when the connector abuts against the abutted object, and the accommodating groove is formed to be continuous in the surface direction It is ideal to surround the outer circumference of the aforementioned through hole.

Furthermore, in the connector of the above aspect, the portion other than the corner portion of the receiving groove is in a state of being discontinuous with the clamping means provided on the corner portion, along the receiving groove in the contact surface. It is ideal to have other holding methods in the circumferential direction.

Furthermore, in the connector of the above aspect, it is preferable that the circumferential size of the clamping means provided at the corners is larger than the circumferential size of the other clamping means.

In addition, in the connector of the above aspect, the clamping means and/or the other clamping means provided at the corners are formed by shortening the size between the inner inner wall and the outer inner wall of the receiving groove It is also possible. Furthermore, in the connector of the above aspect, it is desirable that the size is smaller than the size of a predetermined portion of the sealing member sandwiched between the inner inner wall and the outer inner wall. In the connector of the above aspect, the clamping means may be formed by making a part of the outer inner wall protrude toward the side of the inner inner wall.

Furthermore, in the connector of the above aspect, the depth of the accommodating groove forming the clamping means along the abutting direction is greater than the size of the predetermined portion of the sealing member clamped by the clamping means having the depth Smaller is ideal.

Furthermore, in the connector of the above-mentioned aspect, the said receiving groove may be provided in the flange part of a connector housing.

In addition, in the connector of the above aspect, the accommodating groove may be formed in a substantially rectangular shape in the surface direction.

Furthermore, in the connector of the above aspect, it is preferable that the sealing member is formed of an elastic member having a substantially constant thickness along the circumferential direction of the receiving groove in the contact surface. [Effects of the invention]

According to the present invention, it is possible to provide a connector in which the sealing member can be reliably and easily attached to the contact surface with a simple structure.

Hereinafter, although referring to the attached drawings, an electric connector which is a suitable embodiment of the present invention will be described. However, it is of course not intended to limit the inventors by this. Furthermore, the present invention can be used not only as an electrical connector, but also as a variety of other connectors, for example, it can also be used as an optical connector.

Fig. 1 shows a side view of the connector 1 according to the present invention, Fig. 2 shows its bottom view, and Fig. 3 shows its exploded perspective view.

The connector 1 includes at least a housing 10. In actual use, a part of the housing 10 is used in a state of abutting against an object to be abutted, for example, a frame (not shown). The abutting surface 21 that abuts on the abutted object may be formed by the flange portion 20 of the housing 10 as shown in the illustrated embodiment. In addition to the threaded hole 22 of the screw 3 for fixing the connector 1 to the abutted object, the flange portion 20 is provided with a predetermined position of the abutted object when it is abutted on the abutted object. Used protrusion 12.

To the connector 1, a mating connector (not shown) can be fitted and connected. In order to fit the connector to be connected, a substantially cylindrical fitting protrusion 11 protruding is provided on the fitting side (here, the upper side) of the housing 10. A groove 11A into which the gasket 4 can be attached is formed on the outer periphery of the fitting protrusion 11. When connecting with the mating connector, the gasket 4 can fill the gap in the mating part with the mating connector. In addition, a pair of locking members 15 are provided at opposing positions sandwiching the fitting protrusion 11. For example, by locking a predetermined part (movable locking portion) provided in the counterpart connector to each of the locking members 15, the connection state of the connector 1 and the counterpart connector can also be maintained (for example, refer to Japanese Patent Laid-Open 2015-050160 etc.).

The fitting protrusion 11 is provided with a through hole 16 partitioned by a partition wall 17, for example, two through holes 16A and 16B are provided here. These through holes 16A and 16B can communicate with the through holes provided in the abutting object. These through-holes 16A, 16B are provided with inner casings formed in accordance with the sizes of the respective through-holes 16A, 16B. In particular, FIG. 1 schematically shows the inner housing 19 provided in the through hole 16A. Although the inner case provided in the through hole 16B is not shown, it is conceivable that the same inner case as the inner case 19 is also installed in the through hole 16B in the same manner as the inner case 19. The inner housing 19 is inserted into the through hole 16A along the direction of the arrow mark "α1" in the figure. The inner housing 19 includes an outer portion 19A embedded in the through hole 16A and locked to the inner wall of the through hole 16A, and a plate-shaped portion 19B extending from the outer portion 19A to close the through hole 19A. A plurality of holes 19a capable of supporting the terminal 25 are provided in the plate-shaped portion 19B. When the inner housing 19 is provided in the through hole 16A, the terminal 25 is supported at a predetermined position of the housing 20 in a state where the upper and lower sides are exposed from the inner housing 19 and in a state where the through hole 16A penetrates. In addition, in Japanese Patent Application Publication No. 2018-206502, Japanese Patent Application Publication No. 2018-206501, etc., the structures of the internal housings and terminals are described in further detail as an example.

When the connector 1 is abutted on the abutted object, the terminal on the connector 1 side supported by the inner housing passes through the through hole 16 of the connector 1 and the through hole provided on the abutted object. The connection object (not shown) such as the terminal on the side of the abutted object is connected. As a result, by connecting the connector 1 and the counterpart connector, the terminal provided on the counterpart connector and the connection counterpart provided on the side of the abutted object can be electrically connected via the connector 1. When this type of structure is adopted, there is a concern that water and dust may penetrate into the inside of the abutted object through the through hole 16 of the connector 1 and the through hole of the abutted object that communicates therewith. However, by installing The sealing member 6 can greatly reduce such dangers.

Fig. 4 is an enlarged bottom view of the connector 1 corresponding to Fig. 2 and Fig. 5 is a cross-sectional view taken along the line A-A of Fig. 4 respectively. In order to improve the waterproof/dustproof function, the contact surface 21 of the abutted object is abutted. In the illustrated embodiment, the flange portion 20 of the housing 10 is provided with an orientation and relative to the abutted object. A recessed receiving groove 30 is formed in the direction "α2" opposite to the abutting direction "α1". In the accommodating groove 30, a sealing member 6 having an elastic effect formed of, for example, resin is buried and is buried in the depth direction "α" along the contact direction "α1". The sealing member 6 has a substantially constant thickness along the circumferential direction “θ” of the receiving groove 30 in the contact surface 21. By making the sealing member 6 to have a certain thickness, simplification of design and manufacturing is achieved.

The sealing member 6 accommodated in the accommodating groove 30 is fixed at a predetermined position by pinching means 31A to 31D formed by the accommodating groove 30. Since the depth "t" of the accommodating groove 30 in the depth direction "α" is set to be smaller than the dimensions "a" and "b" of the predetermined portion of the sealing member 6 pinched by the pinching means 31A to 31D, Even after the sealing member 6 is accommodated in the accommodating groove 30, a part 6A, 6B of the sealing member 6 can protrude from the accommodating groove 30 in the depth direction "α". By providing such protrusions 6A and 6B, when the connector 1 is fixed to an object to be contacted, the sealing member 6 accommodated in the receiving groove 30 of the flange portion 20 is in a state of being in close contact with the object to be contacted. The lower part is interposed between the abutted object and the abutting surface 21 to exert a waterproof and dustproof function.

The accommodating groove 30 is formed in a ring shape along the circumferential direction “θ” so as to continuously surround the outer circumference of the through hole 16 in the surface direction of the contact surface 21 (the “β-γ” direction). In addition, the accommodating groove 30 is formed in a polygonal shape in the surface direction ("β-γ" direction), and in the present embodiment, it is formed in a substantially rectangular shape. The sealing member 6 corresponds to the shape of the accommodating groove 30, and is formed in advance in the surface direction ("β-γ" direction) into a shape corresponding to the accommodating groove 30.

The pinching means 31A to 31D are provided at least at the corners of the polygonal shape formed in the accommodating groove 30. If the sealing member 6 accommodated in the accommodating groove 30 accidentally falls off at these corners, although the entire sealing member is relatively easy to fall off, as in this structure, at least the corners are provided with pinching means 31A to 31D, thereby improving The pinching force of the corners where stress is easily applied to the sealing member 6 eliminates the need for the connector 1 and the sealing member 6 to have a complicated structure, and the sealing member 6 can be more reliably fixed to the contact surface 21.

The pinching means 31A to 31D are formed by making a part of the outer inner wall 30B of the accommodating groove 30, for example, by making the entire wall surface along the depth direction "α" protrude toward the inner inner wall 30A. In this way, at these corners, the dimension "h" between the inner inner wall 30A and the outer inner wall 30B is made larger than the dimension "g" in the parts other than the corners, which is sandwiched between these The dimension "a" of the sealing member 6 before deformation is smaller, and the sealing member 6 can be elastically deformed to the dimension "a" corresponding to the dimension "h" for pinching. By elastically deforming, in the pinching means 31A to 31D, a part 6B of the sealing member 6 is formed to protrude more than the normal protruding portion 6A in the contact direction "α1" with respect to the abutted object. When the sealing member 6 abuts against the object to be abutted and compressed, the protruding portion 6B is distributed in the interior of the receiving groove 30 and is squashed in the surface direction ("β-γ" direction). As a result, the sealing member 6 is formed to be more firmly fixed to the receiving groove 30.

In order to effectively prevent the detachment of the sealing member 6 from the receiving groove 30, in addition to the pinching means 31A to 31D provided at the corners, the receiving groove 30 in the abutting surface 21 is discontinuously followed. It is ideal to have other holding means 32 in the circumferential direction "θ". When the other pinching means 32 is provided, as when the pinching means 31A to 31D are provided at the corners, the abutment direction "α1" with respect to the abutted object can make the part 6B of the sealing member 6 compare to the normal The protruding portion 6A is more protruding, so when the sealing member 6 is compressed by abutting against the abutting object, the sealing member 6 can be distributed in the accommodating groove 30 in the overall direction ("β-γ" direction). ) It is flattened into a concave and convex shape. As a result, the sealing member 6 can be more firmly fixed with respect to the receiving groove 30. At this time, it is desirable that the dimension "m" in the circumferential direction "θ" of the clamping means 31A to 31D provided at the corners is set to be larger than the dimension "m" in the circumferential direction "θ" of the other clamping means 32. By setting it to such a size, the corner portion where the sealing member 6 can be effectively fixed can be fixed more firmly than other linear portions.

Yet another aspect, feature, and effect of the present invention include the best aspect for implementing the present invention, and only show many specific embodiments and examples, and should be easily understood from the following detailed description. In addition, the present invention can also be constituted by other and different embodiments, and many of its details can be modified in various clear viewpoints without departing from the spirit and scope of the present invention. Therefore, the drawings and descriptions are only examples, and not limited by this.

1: connector 6: Sealing member 10: Shell 16A, 16B: Through hole 20: Flange 21: abutment surface 30: Containment Ditch 30A: inner side wall 30B: Outer side wall 31A~31D: means of hijacking 32: Hijacking means

[Figure 1] is a side view of the connector made by the present invention. [Fig. 2] is a bottom view of Fig. 1. [Fig. 3] is a bottom view of Fig. 1. [Fig. 4] is an enlarged bottom view of the connector 1 corresponding to Fig. 2. [Fig. [Fig. 5] is a cross-sectional view taken along line A-A in Fig. 4. [Fig.

3: screw

4: Washer

6: Sealing member

10: Shell

12: protrusion

16A: Through hole

16B: Through hole

17: next door

20: Flange

21: abutment surface

22: threaded hole

α: depth direction

β, γ: plane direction

θ: Circumferential

Claims (11)

A connector, characterized in that the abutting surface of the housing with respect to the abutted object is annularly provided with a concave shape facing the opposite direction to the abutting direction with respect to the abutted object, and is formed on the abutting surface The direction of the surface forms a polygonal containment groove, A plurality of pinching means for pinching the sealing member accommodated in the receiving groove is provided at at least a corner portion of the receiving groove forming the polygonal shape. The connector according to claim 1, wherein the connector further has a through hole that can communicate with a hole provided in the abutted object when abutted against the abutted object, The accommodating groove is provided so as to continuously surround the outer periphery of the through hole in the surface direction. The connector according to claim 1 or 2, wherein the portion of the receiving groove other than the corner portion is in a state of being discontinuous with the clamping means provided at the corner portion along the contact surface. Other holding means are provided in the circumferential direction of the aforementioned receiving groove. The connector according to claim 3, wherein the circumferential dimension of the clamping means provided at the corner portion is larger than the circumferential dimension of the other clamping means. The connector according to claim 1 or 2, wherein the clamping means and/or the other clamping means provided at the corner portion are formed by shortening the size between the inner inner wall and the outer inner wall of the receiving groove And be formed. The connector according to claim 5, wherein the size is smaller than a size of a predetermined portion of the sealing member sandwiched between the inner inner wall and the outer inner wall. The connector according to claim 5, wherein the holding means is formed by projecting a part of the outer inner wall toward the side of the inner inner wall. The connector according to claim 1, wherein the depth of the receiving groove in the direction along the abutting direction of the holding means forming the holding means is greater than that of the predetermined portion of the sealing member held by the holding means having the depth The size is smaller. The connector according to claim 1 or 2, wherein the accommodating groove is provided in a flange portion of the connector housing. The connector according to claim 1 or 2, wherein the receiving groove is formed in a substantially rectangular shape in the surface direction. The connector according to claim 1, wherein the sealing member is formed of an elastic member having a substantially constant thickness along the circumferential direction of the receiving groove in the contact surface.

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