JP2017016844A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further improve airtightness between a housing body and a cover by restricting a degree of an operation opening provided in a housing body.SOLUTION: A connector 1 mounted by its being fitted in a fitting hole 20 of the housing 2 of an apparatus, comprises: a housing body 40 formed in a bottomed cylindrical shape from a side wall part 43 having a terminal insertion port 46 and a bottom wall part 44 having a relay terminal insertion port 47, and having an operation opening 45 opposite the bottom wall part; a fitting part 41 cylindrically extending out from an open edge part of the relay terminal insertion port, and fitted into a fitting hole; a conductive terminal 33 inserted into a housing body from a terminal insertion port; a conductive relay terminal 32 inserted into the fitting part and relaying the terminal and a mating terminal 21 in the housing; a cover 38 press-fitted into the housing body from the operation opening and blocking the operation opening; and a rib 49 integrally provided with an external face of a side wall part and extending along an outer periphery of the housing body.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a connector having a working opening.

  2. Description of the Related Art Conventionally, a connector that is fitted into a fitting hole provided in a housing of a device is known (see, for example, Patent Document 1). The shield connector described in Patent Document 1 includes a housing body made of a synthetic resin formed into a bottomed cylindrical shape having a side wall portion and a bottom wall portion, a base end side terminal to which an electric wire is connected, and a base end side terminal And a service cover (hereinafter referred to as a cover). The housing main body has a working opening facing the bottom wall, and the cover is pressed into the housing main body from the working opening to stop the inside of the housing main body.

JP 2015-18695 A

  By the way, when a high internal pressure is applied to the side wall from the inside of the housing body, the side wall may be warped and the working opening may be opened. If the working opening is opened, the sealing property between the housing body and the cover is impaired.

  The present specification discloses a technique for suppressing the opening of the working opening provided in the housing main body, thereby further improving the sealing performance between the housing main body and the cover.

  The connector disclosed in this specification is a connector that is fitted into a fitting hole provided in a housing of a device and is attached to the housing, and includes a side wall portion provided with a terminal insertion port and a relay terminal The housing body is formed in a bottomed cylinder shape having a bottom wall portion provided with an insertion port, and has a working opening opposed to the bottom wall portion, and is external from the opening edge of the relay terminal insertion port. A fitting portion that is fitted and inserted into the fitting hole, a conductive terminal that is inserted into the housing body from the terminal insertion port, and a fitting portion of the fitting portion. A conductive relay terminal that is inserted inside and relays between the terminal and a counterpart terminal in the housing; a cover that is press-fitted into the housing body from the work opening and closes the work opening; and the side wall Is integrally provided on the outer surface of the housing. Comprising a rib extending along the outer circumferential direction of the grayed body.

  According to said connector, since the rib extended along the outer peripheral direction of a housing main body is provided in the outer surface of the side wall part, the opening of a working opening can be suppressed compared with the case where the rib is not provided. Thereby, the sealing performance between the housing body and the cover is further improved.

By the way, there is a case where it is desired to remove the connector for maintenance after attaching the connector to the housing. In that case, since the rib was not provided in the outer surface of the side wall part conventionally, there was no place for an operator to put a finger on, and it was difficult to remove the connector.
According to the above connector, since the rib extending along the outer peripheral direction of the housing body is provided on the outer surface of the side wall portion, the operator can easily remove the connector by placing a finger on the rib. For this reason, the work efficiency of the removal work is improved.

  Further, the side wall portion is formed in a substantially rectangular tube shape having four side walls, and the terminal insertion port is provided in any one of the four side walls, and the outer surface of the side wall is provided. A cylindrical portion surrounding the terminal insertion port is integrally provided, and the rib is formed on the side wall having the widest width in the outer circumferential direction among the side walls other than the side wall on which the terminal insertion port is formed. It may be provided.

  The side wall in which the terminal insertion port is formed is less likely to open than the other side wall because the cylindrical portion is integrally provided. In other words, the other side wall is easier to open than the side wall in which the terminal insertion opening is formed. In particular, the side wall having the widest width in the outer peripheral direction is most easily opened. For this reason, when the rib is provided on the side wall having the widest width in the outer peripheral direction among the side walls other than the side wall in which the terminal insertion port is formed, the rib is provided as compared with the case where the rib is provided over the entire circumference of the housing body. The opening of the working opening can be suppressed while narrowing the range.

  Further, the rib may be provided on all the side walls other than the side wall where the terminal insertion port is formed.

  According to the connector described above, the opening of the working opening can be more reliably suppressed.

  The rib may be provided along an edge of the side wall on the working opening side.

  According to the connector described above, the opening of the working opening can be suppressed compared to the case where the rib is provided at a position spaced from the edge on the working opening side to the bottom wall side.

By the way, when the rib is provided at a position spaced from the edge on the working opening side to the bottom wall side, the operator pushes the end face of the side wall part by hand when attaching the connector to the housing, It is difficult to apply enough force and the operator's hand becomes painful. Further, if a portion other than the housing main body of the connector is pushed in so as not to hurt the hand, it is inserted obliquely, and a higher insertion load is required for insertion to the end.
On the other hand, according to the above connector, since the rib is provided along the edge of the side wall portion on the working opening side, the operator can push the rib against his / her hand. You can apply force to your hands and your hands are less likely to hurt. Further, since the housing body itself is pushed in, it is difficult for oblique insertion to occur, and the insertion load can be prevented from becoming high.

  Further, at least a part of the side wall portion may be thickened by projecting the bottom wall portion side from the tip of the cover on the bottom wall portion side to the inside of the housing body.

According to the connector described above, since at least a part of the bottom wall portion of the side wall portion is thickened, the side wall portion is less likely to warp. For this reason, the opening of the working opening can be more reliably suppressed.
By the way, it is possible to make the side wall portion thicker by projecting the side wall portion to the outside, thereby suppressing the opening of the working opening. However, if the side wall portion is projected outward, the physique of the housing main body becomes large. Further, when the side wall portion is made thicker by projecting to the inside of the housing body, if the work opening side is projected inward from the tip of the bottom wall portion side of the cover in the side wall portion, the work opening becomes narrower. Therefore, the shape of the cover must be changed.
On the other hand, when the thickness of the side wall portion is increased by projecting the bottom wall portion side from the front end of the bottom wall portion side of the cover to the inside of the housing main body, the size of the cover main body is not increased. The opening of the working opening can be suppressed without changing the shape.

  Further, the side wall portion is formed in a substantially rectangular tube shape having four side walls, and the terminal insertion port is provided in any one of the four side walls, and the outer surface of the side wall is provided. A cylindrical portion surrounding the terminal insertion port is integrally provided, and all the side walls other than the side wall in which the terminal insertion port is formed are connected to the bottom wall from the tip of the cover on the bottom wall side. The part side may be thickened by projecting inside the housing body.

  The side wall in which the terminal insertion port is formed is less likely to open than the other side wall because the cylindrical portion is integrally provided. In other words, the other side wall is easier to open than the side wall in which the terminal insertion opening is formed. For this reason, if the bottom wall part side of all the side walls other than the side wall in which the terminal insertion port is formed is thickened, the range to be thickened compared to the case of thickening the entire circumference of the housing main body. The opening of the working opening can be more reliably suppressed while narrowing.

  According to the connector disclosed in this specification, the opening of the working opening provided in the housing main body can be suppressed, and the sealing performance between the housing main body and the cover is further improved.

Sectional drawing of the AA line shown in FIG. 4 of the connector which concerns on Embodiment 1 Connector exploded perspective view Sectional view of the housing of the connector and equipment Top view of housing Schematic diagram showing a state in which a working opening is open in a conventional connector Top view of the connector according to the second embodiment

<Embodiment 1>
A first embodiment will be described with reference to FIGS. 1 to 5. In the following description, the vertical direction is based on the vertical direction shown in FIG. 1, and the front-rear direction is based on the front-rear direction shown in FIG.

  First, with reference to FIG. 1, the connector 1 which concerns on Embodiment 1, and the housing | casing 2 of the inverter to which the connector 1 is attached are demonstrated roughly. The connector 1 is a U-phase, V-phase, and W-phase three-pole shielded connector that is attached to a casing 2 of an inverter mounted on a hybrid vehicle or an electric vehicle to connect the inverter and the three-phase motor. It is. An inverter is an example of a device.

  The inverter housing 2 is provided with a fitting hole 20, a counterpart terminal 21, a terminal block 22, and the like. The terminal block 22 is formed of resin or the like, and a nut 23 to which a bolt 60 is fastened is embedded by molding or press fitting.

(1) Configuration of Connector As shown in FIG. 2, the connector 1 includes a synthetic resin housing 31, three relay terminals 32 made of a conductive metal material, three terminals 33 made of a conductive metal material, A rubber plug 34, a back retainer 35, a shield shell 36, a caulking ring 37, a service cover 38, and the like are provided. The service cover 38 is an example of a cover.

First, the housing 31 will be described with reference to FIGS. 2, 3 and 4. As shown in FIG. 3, the housing 31 includes a housing main body 40, a fitting portion 41 fitted into the fitting hole 20 provided in the casing 2 of the inverter, and a cylindrical portion 42.
The housing body 40 is formed in a bottomed cylindrical shape having a side wall portion 43 and a bottom wall portion 44. More specifically, as shown in FIG. 4, the housing body 40 is formed in a bottomed substantially rectangular tube shape having four side walls 43A, 43B, 43C, and 43D. Further, as shown in FIG. 3, the housing main body 40 has a working opening 45 facing the bottom wall portion 44. The work opening 45 is for the worker to perform the work of attaching the connector 1 to the casing 2 of the inverter.

  Of the four side walls 43A, 43B, 43C, and 43D of the housing body 40, the side wall 43D is provided with a terminal insertion port 46 into which the terminal 33 is inserted. Although only one terminal insertion port 46 is shown in FIG. 3, three terminal insertion ports 46 are provided side by side in the direction perpendicular to the paper surface on the side wall 43D. A relay terminal insertion port 47 into which the relay terminal 32 is inserted is formed in the bottom wall portion 44 of the housing body 40. Three relay terminal insertion ports 47 are also formed side by side in the direction perpendicular to the paper surface.

  Further, a retaining portion 48 for retaining the terminal 33 extends inward from the inner surface of the side wall 43 </ b> D where the terminal insertion port 46 is formed in parallel to the bottom wall portion 44. The distal end portion of the retaining portion 48 is bent toward the bottom wall portion 44, and the distal end portion is inserted into the retaining hole 73 of the terminal 33, thereby preventing the terminal 33 from coming off.

In addition, a rib 49 is integrally provided at the edge on the working opening 45 side on the outer surface of the side wall 43A facing the side wall 43D in which the terminal insertion port 46 is formed among the four side walls 43A to 43D. As will be described in detail later, the rib 49 extends along the outer peripheral direction of the housing body 40. The side wall 43A is an example of the side wall having the widest width in the outer peripheral direction of the housing body 40 among the side walls 43A to 43C other than the side wall 43D in which the terminal insertion port 46 is formed.
Further, as will be described in detail later, the side wall 43A is thickened by a portion 50 on the bottom wall 44 side projecting from the tip of the service cover 38 on the bottom wall 44 side to the inside of the housing body 40.

The fitting portion 41 extends in a cylindrical shape downward from the opening edge of the relay terminal insertion port 47. A groove is formed on the outer periphery of the fitting portion 41, and the first rubber ring 51 is fitted in the groove. The first rubber ring 51 seals between the outer peripheral surface of the fitting portion 41 and the inner peripheral surface of the fitting hole 20.
Further, the fitting portion 41 has a stepped portion 52 that is spaced apart from the relay terminal insertion port 47 toward the distal end side and projects in an annular shape inside the fitting portion 41. For this reason, in the fitting portion 41, the inner diameter of the portion 53 (hereinafter referred to as the housing main body side portion 53) on the housing main body 40 side from the step portion 52 is larger than the inner diameter of the distal end side portion 54 (hereinafter referred to as the front end side portion 54) It has become. The distance from the relay terminal insertion port 47 to the stepped portion 52 substantially matches the thickness of the flange portion 56 of the relay terminal 32.

  As shown in FIG. 4, the inner peripheral shape of the housing main body side portion 53 of the fitting portion 41 has a substantially racetrack shape composed of two parallel lines and two arcs. The facing part that is closest to is formed in a straight line. On the other hand, the inner peripheral shape of the distal end side portion 54 of the fitting portion 41 is circular.

  As shown in FIG. 3, the cylindrical portion 42 is integrally provided on the outer surface of the side wall 43 </ b> D in which the terminal insertion port 46 is formed, and extends in a cylindrical shape to the rear side surrounding the terminal insertion port 46. As shown in FIG. 2, a total of three cylindrical portions 42 are provided for each of the three terminal insertion openings 46, and these three cylindrical portions 42 are sidewalls between adjacent cylindrical portions 42. Are partially shared, and the rear side of the shared side wall is cut away, so that the internal space is integrated on the rear side.

  Next, the relay terminal 32 will be described with reference to FIGS. 2 and 3. As shown in FIG. 3, the relay terminal 32 includes a shaft portion 55 that extends in a cylindrical shape, and a flange portion 56 that protrudes radially outward from the upper end portion of the shaft portion 55. The outer peripheral shape of the shaft portion 55 is circular and substantially coincides with the inner peripheral shape of the distal end side portion 54 of the fitting portion 41. On the other hand, as shown in FIG. 2, the outer peripheral shape of the flange portion 56 is formed in a racetrack shape that substantially matches the inner peripheral shape of the housing main body side portion 53 of the fitting portion 41, and each relay terminal 32 is In the state inserted in the fitting part 41, the opposing part which is closest to the other adjacent flange part 56 is formed in a straight line.

  Next, the terminal 33, the rubber plug 34, the back retainer 35, the caulking ring 37, and the service cover 38 will be described with reference to FIGS. As shown in FIG. 2, the terminal 33 is formed in a flat plate shape, and an electric wire W is crimped to a barrel portion 71 provided on the rear side. In addition, the terminal 33 is provided with an insertion hole 72 through which a bolt 60 (see FIG. 1) for fixing the terminal 33 to the relay terminal 32 is inserted, and a retaining hole 73 is provided at the approximate center in the length direction. Is provided. As described above, the tip of the retaining portion 48 is inserted into the retaining hole 73.

The rubber plug 34 seals between the outer peripheral surface of the electric wire W and the inner peripheral surface of the cylindrical portion 42, and is fitted on the electric wire W.
The back retainer 35 prevents the rubber stopper 34 from coming off, and is fitted and attached to the opening edge of the cylindrical portion 42 from the rear of the rubber stopper 34.

  The shield shell 36 is fitted on the outer peripheral surface of the cylindrical portion 42. Further, a caulking ring 37 is fitted on the outer peripheral surface of the shield shell 36, and a shield member (not shown) is connected to the outer peripheral surface of the shield shell 36 by caulking and crimping the caulking ring 37.

  The service cover 38 is press-fitted into the housing body 40 from the work opening 45 and closes the work opening 45. As shown in FIG. 1, the service cover 38 includes a lid portion 38A formed in a substantially rectangular plate shape that is slightly larger than the work opening 45, and a press-fit portion 38B extending downward from the lower surface of the lid portion 38A. have. A groove is formed on the outer periphery of the press-fit portion 38B, and the second rubber ring 38C is fitted into the groove. The second rubber ring 38 </ b> C seals between the outer peripheral surface of the service cover 38 and the inner peripheral surface of the side wall portion 43 of the housing body 40.

(2) Thickness of Rib and Side Wall Next, the thickness of the rib 49 and the side wall 43A described above will be specifically described with reference to FIG. As shown in FIG. 4, the rib 49 is provided on the outer surface of the side wall 43 </ b> A over the entire outer peripheral direction of the housing body 40. More specifically, the housing body 40 has a curved corner portion 75 between two adjacent side walls, and the rib 49 provided on the side wall 43A has two corner portions adjacent to both sides of the side wall 43A. 75 ends (ends farther from the side wall 43A).

  Further, as described above, the side wall 43 </ b> A is thickened by the portion 50 on the bottom wall portion 44 side projecting inside the housing body 40. More specifically, in the first embodiment, in addition to the side wall 43A, the corner portion 75 on both sides of the side wall 43A, a part of the side wall 43B, and a part 50 of the side wall 43C also have a portion 50 on the bottom wall portion 44 side. It is thick. It should be noted that how much the thickness of the portion 50 on the bottom wall portion 44 side is increased can be determined as appropriate in accordance with required sealing properties.

(3) Attachment of connector Next, with reference to FIG.1 and FIG.3, the attachment to the housing | casing 2 of the connector 1 is demonstrated. In attaching the connector 1 to the housing 2, first, as shown in FIG. 3, the relay terminal 32 is inserted inside the fitting portion 41. When the relay terminal 32 is inserted inside the fitting portion 41, the flange portion 56 comes into contact with the stepped portion 52 and the relay terminal 32 is prevented from coming off.

Then, after other components such as the terminal 33 are assembled to the connector 1, the fitting portion 41 is fitted into the fitting hole 20 as shown in FIG. 1. When the fitting portion 41 is fitted in the fitting hole 20, the distal end of the shaft portion 55 of the relay terminal 32 protrudes downward from the lower end of the fitting portion 41. In this state, the bolt 60 is inserted in the order of the terminal 33, the relay terminal 32, and the counterpart terminal 21, and fastened to the nut 23 of the terminal block 22. As a result, the connector 1 is attached to the housing 2 and the terminal 33 and the counterpart terminal 21 are electrically connected via the relay terminal 32.
When the service cover 38 is press-fitted into the housing main body 40 from the work opening 45, the work opening 45 is closed.

(4) Effects of Embodiment With reference to FIG. 5, effects of the connector 1 according to Embodiment 1 will be described. The inventor of the present application submerged the conventional connector 300 in which the ribs 49 are not provided and the connector 1 according to the first embodiment in a state where the terminal insertion port 46 and the relay terminal insertion port 47 are closed, and is used for air filling. An experiment was conducted in which high-pressure air was filled into the housing main body 40 through a hole provided in the housing. As a result, as shown in FIG. 5, in the conventional connector 300, when the air pressure reached a certain pressure, the side wall portion was warped and the working opening was opened, and the internal air began to leak. On the other hand, in the connector 1 according to the first embodiment, no air leakage was confirmed even at the same pressure.

  Thus, according to the connector 1 which concerns on Embodiment 1, since the rib 49 extended along the outer peripheral direction of the housing main body 40 is integrally provided in the outer surface of the side wall part 43, the rib 49 is not provided. The opening of the working opening 45 can be suppressed compared to the case. Thereby, the sealing performance between the housing body 40 and the service cover 38 is further improved.

  By the way, after attaching the connector 1 to the housing 2, there is a case where it is desired to remove the connector 1 for maintenance or the like. In that case, since the rib 49 was not provided on the outer surface of the side wall portion 43 in the related art, there was no place for the operator to place a finger, and it was difficult to remove the connector 1. According to the connector 1, the rib 49 is provided on the outer surface of the side wall portion 43, so that the operator can easily remove the connector 1 by placing a finger on the rib 49. For this reason, the work efficiency of the removal work is improved.

  Further, according to the connector 1, the rib 49 is provided on the side wall 43A having the widest width in at least the outer peripheral direction among the side walls 43A to 43C other than the side wall 43D in which the terminal insertion port 46 is formed. Since the cylindrical portion 42 is provided integrally with the side wall 43D, the side wall 43D is less likely to open than the other side walls 43A to 43C. In other words, the other side walls 43A to 43C are easier to open than the side wall 43D. In particular, the side wall 43A having the widest width in the outer peripheral direction is most easily opened. For this reason, when the rib 49 is provided on the side wall 43A having the widest width in the outer circumferential direction among the side walls 43A to 43C other than the side wall 43D in which the terminal insertion port 46 is formed, the rib 49 extends over the entire circumference of the housing body 40. The opening of the work opening 45 can be suppressed while the range in which the rib 49 is provided is narrower than the case where the work opening 45 is provided.

  Further, according to the connector 1, the rib 49 is provided along the edge of the side wall 43 on the side of the work opening 45, so that the position is separated from the edge of the side of the work opening 45 toward the bottom wall 44. The opening of the working opening 45 can be suppressed compared to the case where the ribs 49 are provided on the upper side.

  By the way, when the rib 49 is provided at a position spaced from the edge on the work opening 45 side to the bottom wall 44 side, the operator manually touches the end face of the side wall 43 when attaching the connector 1 to the housing 2. It is difficult to apply enough force and the operator's hand becomes painful. Further, when a portion other than the housing main body 40 of the connector 1 is pushed in so as not to hurt the hand, it is inserted obliquely, and a higher insertion load is required for insertion to the end.

  On the other hand, according to the connector 1, since the rib 49 is provided along the edge of the side wall 43 on the working opening 45 side, the operator can push the rib 49 with his / her hand. A sufficient force can be applied to the connector 1 and the hand is less likely to hurt. Further, since the housing main body 40 itself is pushed in, oblique insertion is difficult to occur, and the insertion load can be prevented from becoming high.

  Further, according to the connector 1, at least a part of the side wall portion 43 is thickened by the portion 50 on the bottom wall portion 44 side protruding from the front end of the service cover 38 on the bottom wall portion 44 side to the inside of the housing body 40. Therefore, the side wall 43 is less likely to warp. For this reason, the opening of the working opening 45 can be more reliably suppressed.

  By the way, the side wall 43 can be thickened by projecting the side wall 43 outward, and thereby the opening of the working opening 45 can be suppressed. However, if the side wall 43 is projected outward, the physique of the housing main body 40 becomes large. Further, when the side wall 43 is made thicker by projecting to the inside of the housing body 40, the work opening 45 side is projected inward from the tip of the side wall 43 on the bottom wall 44 side of the service cover 38. Then, since the working opening 45 becomes narrow, the shape of the service cover 38 must be changed.

  On the other hand, when the portion 50 on the side of the bottom wall 44 is projected to the inside of the housing main body 40, the working opening is not made without increasing the size of the housing main body 40 and without changing the shape of the service cover 38. The opening of 45 can be suppressed.

  Furthermore, according to the connector 1, the side wall 43 </ b> A to 43 </ b> C other than the side wall 43 </ b> D where the terminal insertion port 46 is formed has a thick portion 50 on the bottom wall portion 44 side. Since the cylindrical portion 42 is provided integrally with the side wall 43D, the side wall 43D is less likely to open than the other side walls 43A to 43C. In other words, the other side walls 43A to 43C are easier to open than the side wall 43D. For this reason, if the bottom wall 44 side of all the side walls 43 </ b> A to 43 </ b> C other than the side wall 43 </ b> D in which the terminal insertion port 46 is formed is made thicker than in the case of making the wall thickness over the entire circumference of the housing body 40. Thus, the opening of the working opening 45 can be more reliably suppressed while narrowing the thickness range.

<Embodiment 2>
Next, Embodiment 2 will be described with reference to FIG.
In the first embodiment described above, the case where the ribs 49 are provided on the side wall 43A and the corner portions 75 on both sides of the side wall 43A has been described as an example. On the other hand, as shown in FIG. 6, in the connector 200 according to the second embodiment, the rib 49 extends to the middle of the side walls 43B and 43C on both sides of the side wall 43A. In other words, the connector 200 is provided with the ribs 49 on all the side walls 43A to 43C other than the side wall 43D in which the terminal insertion port 46 is formed. The connector 200 according to the second embodiment is substantially the same as the connector 1 according to the first embodiment in other points.

  According to the connector 200 which concerns on Embodiment 2 demonstrated above, since the rib 49 is provided in all the side walls 43A-43C other than the side wall 43D in which the terminal insertion port 46 is formed, the opening of the work opening 45 is opened more. It can be reliably suppressed.

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope disclosed by the present specification.

  (1) In the above embodiment, the case where the cylindrical portion 42 surrounding the terminal insertion port 46 is integrally provided on the outer surface of the side wall 43D where the terminal insertion port 46 is formed has been described as an example. On the other hand, the cylindrical part 42 does not necessarily need to be provided.

  (2) In the above embodiment, the case where the rib 49 is provided along the edge of the side wall 43 on the working opening 45 side has been described as an example. On the other hand, the rib 49 may be provided at a position spaced from the edge on the working opening 45 side to the bottom wall 44 side.

  (3) In the above embodiment, the side walls 43A to 43C other than the side wall 43D in which the terminal insertion port 46 is formed have been described as an example in which the bottom wall portion 44 side is thick. On the other hand, only the side wall 43A having the widest width in the outer peripheral direction among the side walls 43A to 43C may be thickened on the bottom wall portion 44 side. Moreover, when the opening of the side wall part 43 can be sufficiently suppressed only by the ribs 49, any of the side walls 43 </ b> A to 43 </ b> D may not be thickened on the bottom wall part 44 side.

DESCRIPTION OF SYMBOLS 2 ... Housing | casing, 20 ... Fitting hole, 21 ... Counterpart terminal, 32 ... Relay terminal, 33 ... Terminal, 38 ... Service cover (cover), 40 ... Housing main body, 41 ... Fitting part, 42 ... Cylindrical part , 43 ... side wall, 43A, 43B, 43C, 43D ... side wall, 44 ... bottom wall, 45 ... work opening, 46 ... terminal insertion port, 47 ... relay terminal insertion port, 49 ... rib, 200 ... connector

Claims (6)

A connector that is fitted to a fitting hole provided in a housing of the device and attached to the housing,
A housing body having a bottomed cylindrical shape having a side wall portion provided with a terminal insertion opening and a bottom wall portion provided with a relay terminal insertion opening, and having a working opening facing the bottom wall portion. When,
A fitting portion that extends in a cylindrical shape from the opening edge of the relay terminal insertion port and is fitted and inserted into the fitting hole;
A conductive terminal inserted into the housing body from the terminal insertion port;
A conductive relay terminal inserted inside the fitting portion and relaying the terminal and the mating terminal in the housing;
A cover that is press-fitted into the housing body from the working opening and closes the working opening;
A rib provided integrally on the outer surface of the side wall, and extending along the outer circumferential direction of the housing body;
Connector with. The side wall portion is formed in a substantially rectangular tube shape having four side walls,
The terminal insertion port is provided in any one of the four side walls, and a cylindrical portion surrounding the terminal insertion port is integrally provided on the outer surface of the side wall,
The connector according to claim 1, wherein the rib is provided on the side wall having the widest width in the outer circumferential direction among the side walls other than the side wall in which the terminal insertion port is formed.   The connector according to claim 2, wherein the rib is provided on all the side walls other than the side wall in which the terminal insertion port is formed.   The connector according to any one of claims 1 to 3, wherein the rib is provided along an edge portion of the side wall portion on the working opening side.   The at least part of the said side wall part is thick by the said bottom wall part side projecting from the front-end | tip of the said bottom wall part side of the said cover to the inner side of the said housing main body. The connector as described in any one. The side wall portion is formed in a substantially rectangular tube shape having four side walls,
The terminal insertion port is provided in any one of the four side walls, and a cylindrical portion surrounding the terminal insertion port is integrally provided on the outer surface of the side wall,
All the side walls other than the side wall in which the terminal insertion port is formed are thickened by projecting the bottom wall part side from the tip of the cover on the bottom wall part side to the inside of the housing body. The connector according to claim 5.

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