JP6398711B2 - Connectors and electronic devices - Google Patents

Description

  The present invention relates to a connector and an electronic device.

  When laying cables indoors and outdoors, the cable can be made of synthetic resin with a concavo-convex shape continuously formed in the tube axis direction for the purpose of physical protection of the cable and prevention of fire spread from the cable. Accommodating in a flexible wire tube (hereinafter referred to as a corrugated tube) is performed.

  A connector for corrugated tubes (refer to Patent Document 1; hereinafter referred to as corrugated tube connector) to two housings (distribution panel, electronic device housing, outlet box, etc.) between which the corrugated tubes are disposed When attached, the corrugated tube can be arranged in an orderly and aesthetic manner.

  However, some electronic devices used outdoors use a seal connector (see Patent Document 2) in order to satisfactorily waterproof a portion through which a cable passes. When housing such an electronic device cable in a corrugated tube, conventionally, the end of the corrugated tube on the electronic device side is left open, or the end is covered with a working tape. I could only do it.

JP 2012-223010 A JP 2004-180352 A

  The present invention has been made in view of the above-described situation, and an object of the present invention is to provide a technology that allows a cable inserted through a seal connector to be housed in a corrugated tube while maintaining the waterproof property of the seal connector. It is to provide.

In order to solve the above-described problem, a connector according to an aspect of the present invention is a cylindrical connector and a first screw portion provided at one end, and the cable of the seal connector body is inserted through the cable. And a threaded portion of the corrugated tube connector provided on the inner surface of the other end portion and the threaded portion of the corrugated tube connector. A second screw portion to be mated, a pressing portion that presses a peripheral edge portion of the seal member housed in the seal connector body when the first screw portion and the screw portion of the seal connector body are screwed together , and the first One or more drain holes for communicating an inner surface and an outer surface between one screw portion and the second screw portion, or an inner surface and an outer surface between the first screw portion and the second screw portion. A pair of drainage holes with multiple drainage holes facing in opposite directions And a plurality of drainage holes including.

  That is, one end of the connector of the present invention has a configuration (first screw portion and pressing portion) that functions as a tightening nut of a seal connector (a cable connector having a seal connector body, a seal member, and a tightening nut as main components). )have. And the other edge part of the connector of this invention has the structure (2nd thread part) to which a corrugated tube connector can be attached. Therefore, when the connector of the present invention is combined with a seal connector (a seal connector body and a seal member) and a corrugated tube connector, the cable inserted into the seal connector (the seal connector body and the seal member) can be waterproofed. It can be stored aesthetically well in the corrugated tube while being maintained.

  The connector of the present invention may be cylindrical. Further, in order to facilitate the screwing operation with the threaded portion of the seal connector main body, the connector of the present invention has a `` cross-sectional outline perpendicular to the cylinder direction has a polygonal part '', It may have “a cylindrical side surface and one or a plurality of protrusions protruding outward from the side surface”. That is, the connector of the present invention has a portion that has a shape that can be easily sandwiched with a wrench or the like (a portion that has a polygonal cross-sectional outline perpendicular to the cylinder direction) and a portion that makes it easy to grip / rotate by hand (protrusion). You may have it.

  The electronic device having a housing according to the present invention includes a seal connector body attached to the housing and a seal connector body containing a seal member having one or a plurality of through holes for inserting a cable. A structure comprising the connector according to any one of claims 1 to 3 and a corrugated tube connector screwed to the connector, wherein the seal connector body, the seal member, One or more cables are introduced into the housing through a connector, the corrugated tube connector, and a corrugated tube attached to the corrugated tube connector.

  Therefore, in the electronic device of the present invention, the cable inserted into the seal connector is housed beautifully in the corrugated tube while maintaining the waterproof property of the seal connector.

A connector according to another aspect of the present invention is a cylindrical connector, and a seal having one or a plurality of through holes for inserting a cable of a seal connector body provided at one end portion. A first threaded portion that is screwed with a threaded portion on which the member is accommodated, an insertion portion that is provided at the other end, and into which the corrugated tube can be inserted, and is inserted into the insertion portion from the other end side The seal accommodated in the seal connector main body when the plurality of engaging claws that can engage with the valleys on the outer surface of the corrugated tube and the first screw portion and the screw portion of the seal connector main body are screwed together A pressing portion that presses a peripheral edge of the member; and one or more drain holes that communicate between the first screw portion and the insertion portion and the outer surface .

  That is, one end portion of the connector functions as a tightening nut of the seal connector, and the other end portion functions as a corrugated tube connector. Therefore, when the connector of this aspect of the present invention is combined with the seal connector (the seal connector main body and the seal member), the cable inserted through the seal connector is kept in the corrugated tube while maintaining the waterproof property of the seal connector. It can be housed in good aesthetics.

  According to the present invention, the cable inserted into the seal connector can be aesthetically accommodated in the corrugated tube while maintaining the waterproof property of the seal connector.

FIG. 1 is an external view of an electronic apparatus according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view of the cable fixture provided in the electronic apparatus according to the first embodiment. FIG. 3 is a perspective view of the cable fixture. FIG. 4 is an exploded view of the cable fixture. FIG. 5 is a cross-sectional view of the cable fixture provided in the electronic apparatus according to the second embodiment of the present invention. FIG. 6 is a cross-sectional view of a connector constituting the cable fixture of the electronic device according to the third embodiment of the present invention. FIG. 7 is a cross-sectional view of the connector constituting the cable fixture of the electronic device according to the fourth embodiment of the present invention. FIG. 8 is an explanatory diagram of a modification of the connector.

  Embodiments of the present invention will be described below with reference to the drawings.

<< First Embodiment >>
FIG. 1 shows an appearance of an electronic device 10 according to the first embodiment of the present invention.
The electronic device 10 according to the present embodiment is a power conditioner for solar cells that is installed outdoors. As illustrated, a plurality of cable fixtures 20 are attached to the housing 11 of the electronic device 10.

  The cable fixture 20 can introduce a predetermined number (one or more) of cables into the housing 11 in a watertight manner through an opening provided in the housing 11, and a corrugated tube 55 (for example, It is a fixture to which a PF pipe) can be attached.

  Hereinafter, the configuration of the cable fixture 20 will be described in detail with reference to FIGS. Of these drawings, FIG. 2 is a cross-sectional view of the cable fixture 20, and FIG. 3 is a perspective view of the cable fixture 20. FIG. 4 is an exploded view of the cable fixture 20.

  As shown in FIGS. 2 to 4, the cable fixture 20 includes a seal connector body 30, a seal member 31, a connector 40, and a corrugated tube connector 50.

  The corrugated tube connector 50 is a main body portion of the existing corrugated tube connector (a portion other than the lock nut of the existing corrugated tube connector). As shown in FIG. 2, a plurality of claw portions 51 that engage with valleys (indented portions) on the outer surface of the corrugated tube 55 are provided on the side of the corrugated tube connector 50 where the corrugated tube 55 is inserted. Yes. Further, a fixing screw portion 52 (see FIG. 4) having a screw formed on the outer peripheral surface is provided on a portion of the corrugated tube connector 50 opposite to the insertion port of the corrugated tube 55. The corrugated tube connector 50 used for the cable fixture 20 may be waterproof or may not be waterproof.

  The seal connector body 30 and the seal member 31 are components of an existing seal connector. More specifically, the seal connector main body 30 is a main body portion (a member also called a nipple) of the seal connector attached to the opening of the housing 11. The seal member 31 is a truncated cone-shaped member that is formed of an elastic material such as synthetic resin or rubber and has one or more through holes 32 for inserting a cable. There are various seal members 31 having different numbers of through holes 32 (see FIG. 4). The size of the seal connector main body 30 used for the cable fixture 20 and the number of the through holes 32 of the seal member 31 are selected based on the thickness and number of cables introduced into the housing 11.

  The seal connector main body 30 may be attached to the housing 11 using a ring-shaped packing 36 and a lock nut 35 as shown in FIG. Further, the seal connector main body 30 may be attached to the housing 11 without using the lock nut 35 by forming a female screw in the opening of the housing 11. Furthermore, the seal connector body 30 may be made of metal or resin.

  The connector 40 (FIGS. 2 to 4) is a cylindrical member developed to realize the cable fixture 20.

  As shown in FIGS. 2 and 4, one end portion of the connector 40 (the upper end portion in each figure) has a threaded portion (hereinafter referred to as a threaded portion) of the seal connector main body 30 on the side where the seal member 31 is accommodated. And a first screw portion 41 that is screwed with the fixing screw portion. More specifically, at one end portion of the connector 40, a first screw portion 41 is formed on the inner surface of a screw 41a that is screwed with a screw formed on the outer surface of the fixing screw portion of the seal connector body 30. Is provided. The length of the first threaded portion 41 is substantially the same as the length of the threaded portion of the tightening nut for the seal connector main body 30 (cap nut with a hole through which the cable passes in the center). is there.

  As shown in FIGS. 2 and 4, the connector 40 is in contact with the peripheral portion of the seal member 31 in the seal connector body 30 when the first screw portion 41 is screwed into the seal connector body 30. A pressing portion 44 that presses the peripheral edge of the sealing member 31 is provided. The shape and position of the pressing portion 44 are determined so that the internal shape of the end portion of the connector 40 on the side where the seal connector main body 30 is connected is substantially the same as the internal shape of the tightening nut for the seal connector main body 30. It has been.

  2, the inner surface of the other end of the connector 40 (the lower end in FIG. 2) is screwed with a screw portion 52 (see FIG. 4) for fixing the corrugated tube connector 50. A second threaded portion 42 is provided. More specifically, at the other end of the connector 40, a screw 42a that is screwed with a screw formed on the outer surface of the fixing screw portion 52 of the corrugated tube connector 50 and a second screw portion formed on the inner surface thereof. 42 is provided.

  Also, as shown in FIGS. 3 and 4, the outer shape of the end of the connector 40 on the side connected to the seal connector body 30 has a large number in order to facilitate the seal connector body 30 with a wrench or the like. It is a square shape. Furthermore, the connector 40 is provided with two drain holes 45 that communicate the inner surface between the first screw portion 41 and the second screw portion 42 with the outer surface.

  The constituent material of the connector 40 may be a metal or a resin. However, the connector 40 does not require high mechanical strength. Therefore, it is preferable to employ a resin (for example, polyamide resin such as 66 nylon) that can manufacture the connector 40 having the above shape at low cost as a constituent material of the connector 40.

  As described above, one end portion of the connector 40 functions as a tightening nut of the seal connector (the cable connector having the seal connector main body 30, the seal member 31, and the tightening nut as main components) (first structure). It has a screw part 41 and a pressing part 44). Further, the other end portion of the connector 40 has a configuration (second screw portion 42) to which the corrugated tube connector 50 can be attached. Therefore, if the cable holder 20 is configured by combining the connector 40 with the seal connector body 30, the seal member 31, and the corrugated tube connector 50, the cable inserted through the seal connector (the seal connector body 30 and the seal member 31). Can be housed in the corrugated tube 55 with good aesthetics while maintaining the waterproof property by the seal connector (see FIG. 1).

In addition, when the cable holder 20 is used, the corrugated tube 55 may be disposed in such a manner that water can be accumulated in the corrugated tube 55 and reach the seal member 31. The holes 45 are provided so as to face each other. Therefore, if the connector 40 is used, it is always possible to prevent water from coming into contact with the seal member 31 (even when the corrugated tube 55 is disposed in such a way that water can be stored inside).

<< Second Embodiment >>
Hereinafter, the same reference numerals as those used in the description of the electronic device 10 of the first embodiment are used, and the configuration of the electronic device 10 according to the second embodiment of the present invention is different from the electronic device 10 of the first embodiment. The explanation will be focused on.

In FIG. 5, the structure of the cable fixing tool 20 part of the electronic device 10 which concerns on 2nd Embodiment is shown.
As illustrated, the cable fixture 20 according to the present embodiment includes a seal connector body 30, a seal member 31, and a connector 40 '.

Similarly to the connector 40 (see FIG. 2), the connector 40 ′ is a first threaded engagement with one end of the fixing screw portion (the screw portion on the side where the seal member 31 is accommodated) of the seal connector body 30. This is a member provided with a threaded portion 41. However, the connector 40 ₂ of the other end of the shape (configuration) is different from the connector 40, the other end of the connector 40 ₂ is formed in a shape that can be inserted corrugated tube 50. Further, the other end of the connector 40 ₂ has a plurality of claw portions 51 of the valleys that engage the shape of the outer surface of the inserted corrugated tube 50 is provided.

The cable fixture 20 of the electronic device 10 according to this embodiment, the connector 40 ₂ having the above configuration is used. Therefore, also in the electronic device 10 according to the present embodiment, the cable inserted into the seal connector (the seal connector main body 30 and the seal member 31) is aesthetically pleasing inside the corrugated tube 55 while maintaining the waterproof property of the seal connector. It can be accommodated (see FIG. 1). Further, the cable fixture 20 of the electronic device 10 according to the present embodiment has a smaller number of components than the cable fixture 20 (FIG. 2) of the electronic device 10 according to the first embodiment described above. Therefore, the electronic device 10 / cable fixture 20 according to the present embodiment requires less labor / man-hours for arranging the cable and the corrugated tube 55 than the electronic device 10 / cable fixture 20 according to the first embodiment. It can be said that

<< Third Embodiment >>
Hereinafter, the same reference numerals as those used in the description of the electronic device 10 of the first embodiment are used, and the configuration of the electronic device 10 according to the third embodiment of the present invention is different from the electronic device 10 of the first embodiment. The explanation will be focused on.

The electronic device 10 of this embodiment is one in which the connector 40 of the electronic device 10 of the first embodiment (FIG. 1), was replaced with the connector 40 ₃ having a shape shown in FIG.

Connector 40 ₃ is a member of substantially the same shape as connector 40 (configuration). Therefore, also in the electronic device 10 according to the present embodiment, the cable inserted into the seal connector (the seal connector main body 30 and the seal member 31) is aesthetically pleasing inside the corrugated tube 55 while maintaining the waterproof property of the seal connector. Can be accommodated.

However, as is shown in FIG. 6, on the outer peripheral surface of the connector 40 _3, protrusions 46 protruding outward are provided. Therefore, the distribution設時cable / corrugated tube 55 in the electronic device 10 of the present embodiment, by utilizing the protruding portions 46, easy to rotate the or connector 40 ₃ for securing against rotation the connector 40 ₃ Can be done.

<< 4th Embodiment >>
Hereinafter, the same reference numerals as those used when describing the electronic device 10 of the first embodiment are used, and the configuration of the electronic device 10 according to the fourth embodiment of the present invention is different from the electronic device 10 of the first embodiment. The explanation will be focused on.

The electronic device 10 of this embodiment uses a seal connector main body 30 (not shown) in which a screw is formed on the inner surface of the end portion on the side where the seal portion 31 is accommodated. Therefore, the electronic apparatus 10 of the present embodiment, as a connector for connecting the seal connector body 30 and the corrugated tube connector 50, connector 40 ₄ having a shape shown in FIG. 7 is used.

That is, the electronic device 10 of this embodiment, a first threaded portion 41 of the connector 40, instead of the inner peripheral surface, the connector 40 ₄ which correspond to those obtained by changing the screw portion screw is formed on the outer peripheral surface It is used. Incidentally, at the time of screwing to seal the connector body 30 of the connector 40 _4, so that the distal end surface of the first threaded portion 41 presses the peripheral portion of the sealing portion 31 of the seal connector body 30. That is, in the connector 40 _4, the end portion of the first threaded portion 41 functions as a pressing portion 44. Thus, the wall thickness of the first threaded portion 41 of the connector 40 ₄ is usually set to a thickness substantially equal to the width of the peripheral portion of the seal portion 31 to be pressed.

Connector 40 ₄ above shape, but that can connect and seal the connector body 30 and the corrugated tube connector 50. Therefore, also in the electronic device 10 according to the present embodiment, the cable inserted into the seal connector (the seal connector main body 30 and the seal member 31) is aesthetically pleasing inside the corrugated tube 55 while maintaining the waterproof property of the seal connector. Can be accommodated.

<Deformation>
The electronic device 10 according to each of the above-described embodiments can be variously modified. For example, a plurality of protrusions 46 can be provided on the connector 40 ₃ (FIG. 6). The number of drain holes 45 provided in the connector 40 may be one or three or more. Further, if the drainage hole 45 is provided in the corrugated tube 55, it is possible to prevent water from accumulating in the corrugated tube 55 and reaching the seal member 31. Therefore, the connector 40 may not have the drain hole 45. Further, the outer shape of the connector 40 may be a cylindrical shape. However, since it is necessary to apply a certain amount of torque when the connector 40 is screwed onto the seal connector main body 30, it is preferable that at least a part of the outer shape is a polygonal shape like the connector 40 described above.

The connector 40, 40 ₃ or 40 ₄ may be a combination of a plurality of members. For example, as schematically shown in FIG. 7, the connector 40 is a combination of a portion 40 a including the first screw portion 41 and a portion 40 b including the second screw portion 41 (the portion 40 b is rotated). In this case, the corrugated tube connector 50 may be used as the connector 40 (which can be fixed to the portion 40a and the portion 40b).

Further, the connector 40 ₂ (FIG. 5) or the connector 40 ₃ (FIG. 6) may be transformed into a connector in which the first screw portion 41 is a male screw portion (see FIG. 7), or the sealing member 31. However, it is natural that a plurality of members may be combined.

DESCRIPTION OF SYMBOLS 10 ... Electronic device 11 ... Housing 20 ... Cable fixing tool 30 ... Seal connector main body 31 ... Seal member 32 ... Through-hole 35 ... Lock nut 36 ... Packing 40 ... Connector 41 ... First screw part 42 ... Second screw part 44 ... Pressing part 45 ... Hole 50 ... Corrugated tube connector 51 ... Claw part 52 ... For fixing Screw part 55 ... Corrugated tube

Claims (6)

In the tubular connector,
A first threaded portion provided at one end, which is threadedly engaged with the threaded portion of the seal connector body on the side where a seal member having one or a plurality of through holes for inserting a cable is accommodated. A first threaded portion;
A second threaded portion that is provided at the other end and is screwed with the threaded portion of the corrugated tube connector;
A pressing portion that presses a peripheral portion of the seal member housed in the seal connector body when the first screw portion and the screw portion of the seal connector body are screwed together;
One or more drain holes for communicating between the first screw portion and the second screw portion and the outer surface;
A connector comprising: In the tubular connector,
A first threaded portion provided at one end, which is threadedly engaged with the threaded portion of the seal connector body on the side where a seal member having one or a plurality of through holes for inserting a cable is accommodated. A first threaded portion;
A second threaded portion that is provided at the other end and is screwed with the threaded portion of the corrugated tube connector;
A pressing portion that presses a peripheral portion of the seal member housed in the seal connector body when the first screw portion and the screw portion of the seal connector body are screwed together;
A plurality of drainage holes communicating between the first screw part and the second screw part and the outer surface, and a plurality of drainage holes including a pair of drainage holes facing in opposite directions ;
Connector, characterized in that it comprises a. The connector according to claim 1 or 2 , wherein the cross-sectional outer shape perpendicular to the cylinder direction has a polygonal portion. The connector according to any one of claims 1 to 3 , wherein the connector has a cylindrical side surface and has one or a plurality of protrusions protruding outward from the side surface. An electronic device having a housing,
A seal connector body attached to the housing;
The connector according to any one of claims 1 to 4 , wherein the connector is screwed onto the seal connector main body containing a seal member having one or more through holes for inserting a cable.
A corrugated tube connector screwed to the connector;
With
One or more cables are introduced into the casing through the seal connector body, the seal member, the connector, the corrugated tube connector, and the corrugated tube attached to the corrugated tube connector. . In the tubular connector,
A first threaded portion that is screwed into a threaded portion on one side of the seal connector body that is provided at one end portion and that houses a seal member having one or more through holes for inserting a cable;
An insertion portion provided at the other end, into which the corrugated tube can be inserted;
A plurality of engaging claws capable of engaging with a trough on the outer surface of the corrugated tube inserted into the insertion portion from the other end side ;
A pressing portion that presses a peripheral portion of the seal member housed in the seal connector body when the first screw portion and the screw portion of the seal connector body are screwed together;
One or more drainage holes communicating between the first screw portion and the insertion portion and the outer surface;
A connector comprising:

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