JP2012243699A - Electric component set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To materialize miniaturization of an electrical component set including an electric component, a vessel for storing the electric component, and a lid for covering the opening of the vessel, and simplification of the sealed structure of the vessel.SOLUTION: An electric component set 1 includes a vessel 20 for storing an electric component 10, a first lid member 30 and a second lid member 50 for covering the opening of the vessel 20. A screw hole 311 for making the inside of the vessel 20 communicate with the outside thereof is formed in a part of the first lid member 30 for covering the opening of the vessel 20, a groove 313 for a part of an outer fringe 421 of a connector 42 of a cable 40 with a connector to pass and a thread partially parted by the groove 313 are formed at the fringe of the screw hole 311. The second lid member 50 has a screw part 52 attached to the insulation coating part of the cable 40 with the connector and threadedly engaged with the screw hole 311 of the first lid member 30, and the screw part 52 is threadedly attached to the screw hole 311 to cover a gap between the insulation coating of the cable 40 with the connector and the fringe part of the screw hole 311.

Description

  The present invention relates to an electrical component, a container that houses the electrical component, and an electrical component set including a lid that closes an opening of the container.

  In a vehicle such as an automobile, electric parts such as a lamp or a camera are disposed in a place where water such as rainwater is likely to enter. Such an electrical component is combined with a container that accommodates it, a lid that closes the opening of the container, an electric wire connected to the electrical component, and the like, and is provided as an electrical component set having a waterproof structure.

  In order to facilitate the assembly of the electrical component set, the electrical wire with the connector connected to the electrical component connector is employed as the electrical component set. Such electric wires with connectors include a small connector at one end on the electric component side and a relatively large connector at the other end on the vehicle side connected to a power source or a control device.

  For example, Patent Document 1 shows a structure of an electrical device in which an electrical component including a connector mounted on a substrate is accommodated in a front case, and an opening of the front case is closed by a rear case. Furthermore, the rear case of the electric device is configured integrally with a relay connector interposed between the connector of the electric component and the connector of the electric wire with connector. The electric wire with connector electrically connects the outer connector of the rear case and a vehicle side device such as a control device or a power source.

  Moreover, in addition to providing a waterproof structure, the electrical component set mounted on the vehicle is required to be further downsized due to the limitation of the arrangement space. As an electrical component set that is particularly required to be miniaturized, for example, a component set of an LED lamp for status display arranged in the vicinity of a power feeding port in an electric vehicle can be cited.

JP 2005-347243 A

  However, as shown in Patent Document 1, when a lid (rear case) of a container that accommodates an electrical component includes a relay connector, a relatively large lid having a structure for sealing the container while fixing the relay connector Is required. Further, the sealing structure of the relay connector portion in the lid becomes relatively complicated.

  Moreover, when a small connector is adopted in the electric wire with connector in order to reduce the lid portion of the container, the electric wire with connector needs to include an electric wire conversion unit that converts a thick electric wire to a thin electric wire in the middle. However, in the process of manufacturing the electric wire with connector, it is desirable to avoid as much as possible the adoption of a complicated process of providing the electric wire conversion part.

  An object of the present invention is to achieve downsizing and simplification of a container sealing structure in an electric component set including an electric component, a container that houses the electric component, and a lid that closes the opening of the container.

The electrical component set according to the present invention includes the following components.
(1) The first component is an electrical component.
(2) A 2nd component is an electric wire with a connector by which the connector connected with an electrical component was provided in the edge part.
(3) The third component is a container in which an opening into which the electric component is inserted is formed and the electric component is accommodated.
(4) The fourth component is formed with a screw hole that covers the opening of the container and partially communicates the inside and the outside of the container. It is the 1st cover member in which the groove | channel through which a part of outer edge of a connector passes when it inserts, and the screw thread partly parted by the groove | channel were formed.
(5) The 5th component is attached to the part of the insulation coating in the electric wire with a connector, has a screw part screwed with the screw hole of the 1st lid member, and the electric wire with a connector is a screw hole of the 1st lid member The second lid member closes the gap between the insulating coating of the connector-attached electric wire and the edge of the screw hole by screwing the screw portion into the screw hole in a state of being passed through.

It is conceivable that the electrical component set according to the present invention further includes one or more of the following constituent elements.
(6) In the sixth component, the screw portion of the second lid member is screwed into the screw hole of the first lid member, whereby the edge portion of the screw hole in the first lid member and the second lid member It is the 1st water stop member which is a cyclic | annular elastic member pinched | interposed between.
(7) A 7th component is the 2nd water stop member which is a cylindrical elastic member which plugs up the crevice between the portion of insulation covering in the electric wire with a connector, and the 2nd lid member.
(8) The 8th component is the 3rd water stop member which is an annular elastic member inserted between the edge of the opening in a container, and the 1st lid member.

  In the present invention, the lid that closes the opening of the container that houses the electrical component is constituted by two lid members. The first lid member closes most of the opening of the container except for the screw hole (through hole) necessary for passing the connector-attached electric wire. The second lid member closes a gap between the insulating cover portion of the connector-attached electric wire passed through the screw hole of the first lid member and the first lid member. With such a structure, in order to close the entire opening of the container, the only member that needs to be attached in advance to the electric wire with connector is a very small second lid member. Therefore, the handleability of the electric wire with connector is not impaired.

  Further, the screw hole (through hole) of the first lid member can be sealed by a simple screw structure including the screw portion of the second lid member and the screw hole of the first lid member. Further, the gap between the container and the first lid member, and the gap between the insulation coating portion of the electric wire with connector and the second lid member, such as an annular or cylindrical elastic member sandwiched between the gaps, etc. It is possible to seal with a simple structure using a water stop member.

  Further, a groove through which a part of the outer edge of the connector passes when the connector of the electric wire with connector is inserted in a specific posture is formed at the edge of the screw hole of the first lid member. Such a 1st cover member can be comprised smaller than the cover member integrated with the connector for relay, and the cover member which has the circular screw hole which a connector can pass. That is, according to the present invention, it is possible to achieve downsizing and simplification of the container sealing structure in the electrical component set. Moreover, in order to make the connector of the electric wire with connector small, it is not necessary for the electric wire with connector to include an electric wire conversion part for converting from a thick electric wire to a thin electric wire in the middle.

  If the electrical component set according to the present invention includes an annular elastic member (first water stop member) sandwiched between the edge of the screw hole of the first lid member and the second lid member, the first The gap between the lid member and the second lid member is more reliably sealed.

1 is a perspective view of an electrical component set 1 according to an embodiment of the present invention. It is sectional drawing of the electrical component set 1 in the state by which the electric wire with a connector was connected to the electrical component. It is sectional drawing of the electrical component set 1 in the state before the electric wire with a connector is connected to an electrical component. It is a front view of the 1st lid member with which electric component set 1 is provided. It is a front view of the 1st cover member applicable to the electrical component set 1. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example embodying the present invention, and is not an example of limiting the technical scope of the present invention.

<Embodiment>
Hereinafter, the configuration of the electrical component set 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 4. As shown in FIG. 1, the electrical component set 1 includes an electrical component 10, a container 20, a first lid member 30, a connector-attached electric wire 40, and a second lid member 50.

<Electric parts>
The electrical component 10 is a component that operates by receiving power supply from the outside. The electrical component 10 in the present embodiment includes an electronic substrate 11, a status display LED lamp 12 and a component connector 13 mounted on the electronic substrate 11. The component connector 13 is electrically connected to the LED lamp 12 and is a connector connected to the secondary connector 42 of the electric wire 40 with connector. The electric power supplied through the electric wire with connector 40 is transmitted to the LED lamp 12 through the component connector 13.

<Container>
As shown in FIGS. 1 and 2, the container 20 is a hollow member in which an opening 21 into which the electric component 10 is inserted is formed and the electric component 10 is accommodated. The container 20 in this embodiment is at least partially transparent, and is configured so that the lighting state of the internal LED lamp 12 can be viewed from the outside. For example, the container 20 is an integrally formed member made of an insulating resin such as polyamide (PA), polypropylene (PP), polybutylene terephthalate (PBT), or ABS resin. 2 is a cross-sectional view of the electrical component set 1 in a state where the connector-attached electric wire 40 is connected to the electrical component 10. FIG. Moreover, in FIG. 2, the LED lamp 12 and the component connector 13 are drawn with the virtual line (two-dot chain line) for convenience.

<Electric wire with connector>
The electric wire with connector 40 includes a plurality of insulated wires 41 made of a core wire and an insulating coating covering the periphery of the core wire, and a primary side connector 43 and a secondary side connector 42 provided at both ends of the insulated wire 41.

  The secondary connector 42 provided at one end of the insulated wire 41 is a connector connected to the component connector 13 of the electrical component 10. On the other hand, the primary connector 43 provided at the other end of the insulated wire 41 is a connector connected to a connector of a control unit that supplies power and a control signal to the electrical component 10. The shape seen from the front direction of the secondary side connector 42 shown in FIG. 1 is a flat rectangular shape in which the width is formed wider than the height.

  As shown in FIG. 1, the secondary connector 42 is a small connector that does not itself have a waterproof structure. On the other hand, the primary side connector 43 is a large connector having a waterproof structure and larger than the secondary side connector 42. FIG. 1 is a perspective view of the electrical component set 1 in a state before the connector-attached electric wire 40 is connected to the electrical component 10.

  Moreover, in the electric wire 40 with a connector, each insulated electric wire 41 is comprised with a series of electric wires which are seamless from the primary side connector 43 to the secondary side connector 42. FIG. That is, the connector-attached electric wire 40 does not include an electric wire conversion portion that converts a thick electric wire to a thin electric wire in the middle thereof.

  The insulated wire 41 of the connector-attached wire 40 is covered with a water stop tube 44 that is a cylindrical elastic member at least at a part of the portion of the insulation coating. The water stop tube 44 is a member made of an elastomer (elastic polymer) which is, for example, rubber or a rubber-based material. The elastomer includes vulcanized rubbers such as natural rubber and synthetic rubber, and thermosetting resin-based elastomers such as urethane rubber, foamed urethane, silicone rubber and fluororubber.

<First lid member>
The first lid member 30 is a member having a main body portion 31 that covers the opening 21 of the container 20 and a fixing portion 32 that is continuous with both sides of the main body portion 31. For example, the first lid member 30 is an integrally formed member made of an insulating resin such as polyamide (PA), polypropylene (PP), polybutylene terephthalate (PBT), or ABS resin.

  A screw hole 311 is formed in the main body portion 31 of the first lid member 30 as a through hole that allows the inner side and the outer side of the container 20 to communicate with each other. On the surface of the main body 31 that forms the edge of the screw hole 311, a screw thread that is screwed with a screw portion 52 of the second lid member 50 described later is formed.

  As shown in FIGS. 1 and 4, the secondary side connector 42 of the connector-attached electric wire 40 is inserted into the screw hole 311 in a specific posture at two positions facing each other on the edge of the screw hole 311. A groove 313 through which a part 421 of the outer edge of the secondary connector 42 passes is sometimes formed. Therefore, on the surface forming the edge of the screw hole 311, the screw thread is formed in a state of being divided by the two grooves 313.

  FIG. 3 is a cross-sectional view of the electrical component set 1 in a state before the connector-attached electric wire 40 is connected to the electrical component 10. In FIG. 3, for convenience, the LED lamp 12 and the component connector 13 are drawn with virtual lines (two-dot chain lines).

  As shown in FIG. 3, the minimum width W1 of the screw hole 311 corresponding to the diameter of the screw hole 311 is smaller than the width W3 of the flat secondary connector 42. However, the maximum width W2 of the screw hole 311 corresponding to the interval between the bottom surfaces of the two grooves 313 formed to face the edge of the screw hole 311 is larger than the width W3 of the flat secondary connector 42. Further, the width of the two grooves 313 is formed larger than the height of the secondary connector 42 when the secondary connector 42 is viewed from the front.

  Therefore, as shown in FIGS. 3 and 4, the flat secondary connector 42 has a screw hole 311 in a specific posture, that is, a posture in which the direction of the width W3 is along the direction of the maximum width W2 of the screw hole 311. Can be passed through the screw hole 311. At that time, a part 421 of the outer edge of the secondary connector 42 passes through the groove 313 at the edge of the screw hole 311. However, even if the secondary connector 42 is inserted into the screw hole 311 in a posture other than the specific posture described above, a part 421 of the outer edge may be caught by the edge of the screw hole 311 and pass through the screw hole 311. Can not.

  In addition, through holes 314 for screwing are formed in each of four locations facing the edge of the opening 21 of the container 20 in the main body 31 of the first lid member 30. In addition, screw holes (not shown) communicating with the through holes 314 are formed at four positions facing each of the through holes 314 at the edge of the opening 21 of the container 20. When the screw member 315 inserted into the through hole 314 of the first lid member 30 is tightened into the screw hole of the container 20, the first lid member 30 is connected to the container 20 in a state of closing the opening 21 of the container 20. Is done.

  Although not shown in each drawing, a waterproof rubber plug is fitted into the recess remaining after the screw member 315 in the through hole 314 of the first lid member 30 is mounted. This prevents water from entering the container 20 from the gap between the through hole 314 portion of the first lid member 30 and the screw member 315.

  As shown in FIG. 2, the electrical component set 1 is a large-diameter waterstop that is an annular elastic member that is sandwiched between the edge of the opening 21 in the container 20 and the main body 31 of the first lid member 30. A member 22 is provided. The large-diameter water stop member 22 is an example of a third water stop member.

  The large-diameter water blocking member 22 is a member made of, for example, rubber or an elastomer (elastic polymer) that is a rubber-based material. When the first lid member 30 is connected to the container 20 by the screw member 315, the large-diameter water blocking member 22 is disposed between the edge portion of the opening 21 in the container 20 and the main body portion 31 of the first lid member 30. The gap between the container 20 and the first lid member 30 is sealed.

<Second lid member>
The 2nd cover member 50 is a member attached to the part of the insulation coating in the insulated wire 41 of the electric wire 40 with a connector. A through-hole 51 is formed in the second lid member 50, and the second lid member 50 has an insulation coating of the insulated wire 41 with the insulated wire 41 of the connector-attached wire 40 passed through the through-hole 51. Attached to the part.

  More specifically, the portion of the insulated wire 41 covered with the water stop tube 44 is passed through the through hole 51 of the second lid member 50. The outer diameter of the water stop tube 44 in the natural state is formed larger than the inner diameter of the through hole 51 of the second lid member 50. Accordingly, the water stop tube 44 is sandwiched between the insulating cover portion of the insulated wire 41 and the second lid member 50, and seals the gap between the insulated wire 41 and the second lid member 50. The water stop tube 44 is an example of a second water stop member.

  The second lid member 50 includes a screw portion 52 that is screwed into the screw hole 311 of the first lid member 30, and a flange portion 53 that projects outward from the screw portion 52. Then, with the portion on the secondary connector 42 side in the connector-attached electric wire 40 passed through the through hole 51 of the second lid member 50 being passed through the screw hole 311 of the first lid member 30, the screw portion 52 is By being screwed into the screw hole 311, the flange portion 53 closes the gap between the insulating coating portion of the insulated wire 41 and the edge portion of the screw hole 311 of the first lid member 30.

  Further, the second lid member 50 is formed with a nut portion 55 that is a portion to which a rotational force from a tool that tightens the screw portion 52 into the screw hole 311 acts.

  The second lid member 50 is attached with a small-diameter water stop member 54 that is an annular elastic member. The diameter of the small diameter water stop member 54 is smaller than the diameter of the large diameter water stop member 22. As shown in FIG. 2, when the screw portion 52 of the second lid portion 50 is screwed into the screw hole 311 of the first lid member 30, the small-diameter water-stopping member 54 becomes the main body portion of the first lid member 30. 31 is sandwiched between the edge portion of the screw hole 311 and the flange portion 53 of the second lid member 50, and the gap between the first lid member 30 and the second lid member 50 is sealed. The small diameter water stop member 54 is an example of a first water stop member.

<Effect>
In the electronic component set 1, the lid that closes the opening 21 of the container 20 that houses the electrical component 10 is configured by the first lid member 30 and the second lid member 50. The first lid member 30 closes most of the opening 21 of the container 20 except for the screw hole 311 (through hole) necessary for passing the connector-attached electric wire 40.

  On the other hand, the second lid member 50 closes the gap between the insulating cover portion of the connector-attached electric wire 40 passed through the screw hole 311 of the first lid member 30 and the first lid member 30. With such a structure, the only member that needs to be attached in advance to the connector-attached electric wire 40 in order to close the entire opening 21 of the container 20 is the very small second lid member 50. Therefore, the handleability of the connector-attached electric wire 40 is not impaired.

  Further, the screw hole 311 (through hole) of the first lid member 30 can be sealed by a simple screw structure including the screw portion 52 of the second lid member 50 and the screw hole 311 of the first lid member 30. . Moreover, the clearance gap between the container 20 and the 1st cover member 30, and the clearance gap between the part of the insulation coating of the electric wire 40 with a connector, and the 2nd cover member 50 are large-diameter water stop members inserted in those clearance gaps. 22 and the simple structure using the water stop tube 44 can be sealed.

  Further, a part 421 of the outer edge of the secondary connector 42 passes through the edge of the screw hole 311 of the first lid member 30 when the secondary connector 42 of the electric wire 40 with connector is inserted in a specific posture. A groove 313 is formed. Such a first lid member 30 can be configured smaller than a lid member integrated with the relay connector and a lid member having a circular screw hole through which the connector can pass. That is, by employing the electrical component set 1, it is possible to reduce the size of the first lid member 30 and the container 20 and simplify the sealing structure of the container 20.

  Moreover, in the electrical component set 1, in order to make the secondary side connector 42 small, it is not necessary for the electric wire 40 with a connector to include an electric wire conversion part for converting from a thick electric wire to a thin electric wire in the middle.

  Further, by providing the small diameter water stop member 54 sandwiched between the edge of the screw hole 311 of the first lid member 30 and the second lid member 50, the first lid member 30 and the second lid member 50 are provided. The gap between the two is more securely sealed.

<Others>
FIG. 5 is a front view of the first lid member 30 </ b> A applicable to the electrical component set 1. In the above-described embodiment, since the shape of the secondary connector 42 viewed from the front is a flat shape, the groove 313 is formed at two positions facing each other at the edge of the screw hole 311 of the first lid member 30. Is formed.

  On the other hand, as shown by an imaginary line (two-dot chain line) in FIG. 5, the shape of the secondary connector 42 viewed from the front direction may be a square or a rectangle whose aspect ratio is close to 1. In such a case, it is conceivable that the grooves 313 are formed at four locations on the edge of the screw hole 311 of the first lid member 30. That is, two of the four grooves 313 are formed opposite to each other at the edge of the screw hole 311 of the first lid member 30.

  As shown in FIG. 5, the four grooves 313 form a space through which each of the four corners 421A of the secondary connector 42 passes when the secondary connector 42 is inserted into the screw hole 311 in a specific posture. Form. In the electrical component set 1, it may be considered that the first lid member 30 </ b> A as shown in FIG. 5 is adopted according to the shape of the secondary connector 42 viewed from the front direction.

  Further, in the electrical component set 1, the container 20 and the first lid member 30 are connected by a screw 315. However, it is also conceivable that the container 20 and the first lid member 30 are connected by another structure.

  For example, it is conceivable that a screw portion and a screw receiving portion that are screwed to each other are formed on the edge portion of the opening 21 and the first lid member 30 in the container 20. In this case, the first lid member 30 is connected to the container 20 in a state of closing the opening 21 of the container 20 by tightening the screw part into the screw receiving part. Further, when the screw portion is tightened into the screw receiving portion, the large-diameter water blocking member 22 is sandwiched between the edge portion of the opening 21 in the container 20 and the main body portion 31 of the first lid member 30.

  In the electrical component set 1, the electrical component 10 may be another electrical component including a connector, such as a small camera.

DESCRIPTION OF SYMBOLS 1 Electrical component set 10 Electrical component 11 Electronic board 12 LED lamp 13 Component connector 20 Container 21 Container opening 22 Large-diameter water stop member 30, 30A First lid member 31 Main body portion of first lid member 32 Fixing of first lid member Portion 40 Electric wire with connector 41 Insulated wire 42 Secondary side connector 43 Primary side connector 44 Water stop tube 50 Second lid member 51 Through hole of second lid member 52 Screw portion 53 Flange portion 54 Small diameter water stop member 55 Nut portion 313 Groove 311 Screw hole 314 Through hole 315 Screw member 421 Part of secondary side connector 421A Corner of secondary side connector

Claims (4)

Electrical components,
An electric wire with a connector provided with a connector to be connected to the electric component at the end;
An opening into which the electrical component is inserted is formed, and a container that houses the electrical component;
A screw hole that covers the opening of the container and that partially communicates the inside and the outside of the container is formed, and the connector is inserted into the screw hole in a specific posture at the edge of the screw hole. A first lid member formed with a groove through which a part of the outer edge of the connector passes and a thread partly divided by the groove;
It is attached to a portion of the insulation coating in the electric wire with connector, has a screw portion that is screwed into the screw hole of the first lid member, and the electric wire with connector is passed through the screw hole of the first lid member. And a second lid member that closes a gap between the insulating coating and the edge of the screw hole by screwing the screw portion into the screw hole in a state. Parts set.   The screw portion of the second lid member is screwed into the screw hole of the first lid member, so that it is sandwiched between the edge portion of the screw hole in the first lid member and the second lid member. The electrical component set according to claim 1, further comprising a first water stop member that is an annular elastic member.   3. The electrical component according to claim 1, further comprising a second water stop member that is a cylindrical elastic member sandwiched between the portion of the insulating coating in the electric wire with connector and the second lid member. set.   The electrical component set according to any one of claims 1 to 3, further comprising a third water stop member that is an annular elastic member sandwiched between an edge of the opening in the container and the first lid member. .

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