JP5278078B2 - connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make compatible both aligning of terminals and downsizing of a connector. <P>SOLUTION: The connector 10 for equipment includes a housing 11 fitted into a mounting hole 33 installed through a case 30 of the equipment, a terminal loose insertion hole 12 installed through the inside of the housing 11, the terminal 21 connected to the terminal of a core wire 20A in an electric wire 20 of which the core wire 20A is covered by a coating 20B, a retainer R fixed to the covering 20B and inserted into the terminal loose insertion hole 12 together with the electric wire 20, a retaining protrusion 53 installed inside the terminal play insertion hole 12, and locked from forward in the axial direction of the terminal loose insertion hole 12 against the retainer R, and a front retainer 54 installed inside of the terminal loose insertion hole 12 and locked from backward in the axial direction of the terminal loose insertion hole 12 against the retainer R. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a connector that fits into a mounting hole provided through a case of a device.

  As this type of connector, for example, connectors described in Patent Documents 1 and 2 below are known. The connector described in Patent Document 1 has a configuration in which a terminal accommodation hole is formed through the inside of the housing, and a terminal connected to the end of the electric wire is accommodated in the terminal accommodation hole. A lance is formed inside the terminal receiving hole. On the other hand, the terminal is formed with a lance locking hole for locking the terminal so that the terminal can be loosened by locking with the lance. In this way, there is an advantage that the terminal can be adjusted to an appropriate posture in accordance with the terminal alignment, that is, the position of the terminal block on the device side.

  On the other hand, the connector described in Patent Document 2 includes a molded part that is molded integrally with a terminal, and the molded part fits into a mounting hole of the case. If it does in this way, since it is not necessary to form a lance, there exists a merit that a connector can be reduced in size.

JP 2002-31396 A JP 2008-269858 A

  However, even if the connector can be reduced in size by molding, the terminal cannot be prevented from loosening in the configuration in which the mold portion is fitted into the mounting hole. Therefore, the terminal is forcibly connected to the terminal block on the device side with an incorrect posture, and an excessive load is applied to the terminal. In other words, terminal alignment and connector miniaturization are incompatible problems, and it is difficult to achieve both.

  The present invention has been completed based on the above circumstances, and an object thereof is to achieve both terminal alignment and connector miniaturization.

The connector according to the present invention includes a housing that fits into a mounting hole that penetrates through a case of a device, a through-hole that penetrates inside the housing, and a core wire in an electric wire in which the core wire is covered with a coating. A terminal connected to the terminal, a retainer fixed to the sheath, inserted into the through hole together with the electric wire, and a holding projection protruding from the inner peripheral surface thereof, and provided inside the through hole. On the other hand, a first locking portion that locks from one side in the axial direction of the through hole, and a second locking portion that is provided inside the through hole and locks from the other side in the axial direction of the through hole to the retainer. It is characterized by having a configuration provided with.

  According to such a configuration, the retainer is restricted from moving in the axial direction of the through hole by locking the first locking portion and the second locking portion on the retainer. Moreover, since the covering of the electric wire is fixed to the retainer, the electric wire is prevented from coming off in the axial direction of the through hole, so that the terminal can be prevented from coming off. Therefore, it is not necessary to provide a lance or lance locking hole as in the prior art, and the connector can be downsized. Further, since the electric wire has flexibility and can prevent the terminal from coming loose, the terminal can be aligned.

The following configuration is preferable as an embodiment of the present invention.
When the axial direction of the through hole is the front-rear direction, the inner side of the case is the front side, and the outer side of the case is the rear side, the first locking portion is a retaining protrusion that protrudes from the inner peripheral surface of the through hole. Yes, the retaining protrusion may be configured to be locked from the front with respect to the retainer.
According to such a configuration, the retaining protrusion can be formed when the housing is molded, and the retaining protrusion can be locked to the retainer from the front.

When the axial direction of the through hole is the front-rear direction, the inner side of the case is the front side, and the outer side of the case is the rear side, the second locking portion is a front stop of the rubber plug attached to the rear end opening of the through hole It is good also as a structure which is formed in the front-end part of the front stop part which performs this, and this front stop part latches with respect to a retainer from back.
According to such a structure, it can be locked with respect to a retainer from back using the front stop part which performs the front stop of a rubber stopper.

The terminal has a device-side connection piece that protrudes from the end opening of the through-hole into the case, and a terminal insertion hole that allows the device-side connection piece to be inserted in a loosely inserted state, and is attached to the end opening of the through-hole. It is good also as a structure provided with the cover made.
According to such a structure, since the apparatus side connection piece can be supported by the opening edge of a terminal insertion hole, it can prevent that the front-end | tip of an apparatus side connection piece falls and interferes with the terminal block on the apparatus side.

  According to the present invention, it is possible to achieve both terminal alignment and connector miniaturization.

Sectional view of the state where the device connector is mounted in the mounting hole of the case as seen from the side Sectional view of the device connector from the side before the cover is attached to the housing Front view of device connector Front view of device connector before attaching cover Retainer front view AA line sectional view in FIG.

<Embodiment>
An embodiment of the present invention will be described with reference to the drawings of FIGS. The device connector 10 in the present embodiment is a connector attached to, for example, an inverter device (an example of the “device” in the present invention). The device connector 10 is connected to a terminal of an electric wire 20 that supplies power from a battery (not shown) to the inverter device. Although the inverter device itself is not illustrated, the inverter device is accommodated in a metal case 30 having a shielding function.

  The electric wire 20 has a plurality of covered electric wires each composed of a core wire 20A formed by combining a plurality of metal strands and an insulating covering 20B that covers the core wire 20A. These covered electric wires are collectively covered with a braided wire S. That is, the electric wire 20 is a collective shielded electric wire in which a plurality of covered electric wires are collectively covered with the braided wire S.

  As shown in FIG. 1, the case 30 includes a case main body 31, an upper cover 32 that closes an upper opening that opens at an upper portion of the case main body 31, and the like. A mounting hole 33 is provided through the side wall of the case body 31. The mounting hole 33 is configured by an inner peripheral surface of a fitting cylinder portion 34 that penetrates the side wall of the case body 31 and protrudes to the outside of the case body 31. A terminal block 35 is disposed inside the case 30.

  A terminal 21 is connected to the end of the electric wire 20. The terminal 21 is formed by performing punching or bending by pressing. A device-side connection piece 22 having a flat plate shape is formed on one end side of the terminal 21. The device side connection piece 22 has a bolt hole 23 penetrating in the plate thickness direction. The terminal 21 penetrates the connection bolt B1 through the bolt hole 23 and is connected to the inverter device side so as to be conductive by screwing the connection bolt B1 into the terminal block 35. A barrel portion 24 for caulking the core wire 20 </ b> A of the electric wire 20 is formed at the base end portion of the device-side connection piece 22.

  The device connector 10 has a housing 11 made of synthetic resin. A plurality of terminal insertion holes (an example of the “through hole” in the present invention) 12 are formed through the housing 11. Each terminal 21 can be loosely inserted into each terminal loose insertion hole 12. Each terminal loose insertion hole 12 is partitioned by a partition wall 13. In the following description, the axial direction of the terminal insertion hole 12 is the front-rear direction, the inner side of the case 30 is the front side, and the outer side of the case 30 is the rear side.

  The housing 11 is roughly divided into an internal housing 40 disposed inside the case 30 and an external housing 50 disposed outside the case 30. First, the configuration of the inner housing 40 will be described. The inner housing 40 has a fitting portion 41 that fits into the mounting hole 33. Inside the fitting portion 41, a terminal accommodation hole 12 </ b> A that individually accommodates substantially the latter half of the plurality of terminals 21 is formed. A mounting groove 42 is recessed in the outer peripheral surface of the fitting portion 41. A seal ring 60 is fitted in the mounting groove 42.

  The seal ring 60 is made of rubber having flexibility. The seal ring 60 fitted in the mounting groove 42 is prevented from coming off in a positioning state in the axial direction of the fitting portion 41. When the fitting portion 41 is fitted into the mounting hole 33, the seal ring 60 is in close contact with the mounting groove 42 and the inner peripheral surface of the mounting hole 33. This restricts water from entering the case 30 from between the fitting portion 41 and the fitting cylinder portion 34.

  Next, the configuration of the external housing 50 will be described. The outer housing 50 has a plurality of wire receiving holes 12B having a cylindrical shape. These electric wire accommodation holes 12B individually accommodate the electric wires 20 connected to the respective terminals 21. That is, the terminal loose insertion hole 12 is composed of the terminal accommodating hole 12A and the electric wire accommodating hole 12B, and the terminal accommodating hole 12A and the corresponding electric wire accommodating hole 12B communicate with each other.

  A rubber plug 61 is attached to the rear end opening of the wire receiving hole 12B. The rubber plug 61 is made of rubber having flexibility like the seal ring 60. The rubber plug 61 has a shaft hole, and the electric wire 20 is inserted through the shaft hole. Furthermore, when the rubber plug 61 is inserted into the electric wire receiving hole 12B together with the electric wire 20, the rubber plug 61 comes into close contact with the outer peripheral surface of the electric wire 20 and the inner peripheral surface of the electric wire receiving hole 12B. This restricts water from entering the case 30 from between the outer peripheral surface of the electric wire 20 and the inner peripheral surface of the electric wire housing hole 12B.

  On the rear side of the rubber plug 61, a rubber plug retainer 62 that prevents the rubber plug 61 from being pulled backward is attached. A plurality of holding portions 63 are provided on the outer peripheral surface of the rubber stopper presser 62 so as to protrude radially outward. On the other hand, a bending locking piece 52 that can be locked to the holding portion 63 from the rear is provided on the inner peripheral surface of the electric wire accommodation hole 12B so as to be able to be bent. When the holding part 63 is bent and locked to the locking piece 52, the rearward movement of the rubber stopper 61 is restricted, and the backward removal of the rubber stopper 61 is restricted.

  A plurality of front stop portions 54 that perform the front stop of the rubber plug 61 are provided on the inner peripheral surface of the wire receiving hole 12B. The front stop 54 is intermittently disposed in the circumferential direction. The rubber stopper 61 is restricted from moving forward by the rear end of the front stop 54. Therefore, even if the electric wire 20 is inserted into and removed from the electric wire housing hole 12B in the front-rear direction, the rubber plug 61 does not move in the front-rear direction together with the electric wire 20. A predetermined gap is formed between the front stop 54 and the outer peripheral surface of the electric wire 20.

  A metal shield shell 70 having a shield function can be attached to the outer housing 50. The shield shell 70 is configured integrally with a cylindrical portion 71 that surrounds the outer periphery of the outer housing 50, a fixing portion 72 that is fixed to the upper surface of the fitting cylindrical portion 34, and the like.

  The cylinder part 71 is formed in a cylindrical shape having a long hole shape with a horizontally long cross section. At the rear end of the cylindrical portion 71, a flange portion 73 that projects to the inner peripheral side is provided. A portion surrounded by the flange portion 73 is an insertion hole through which the outer housing 50 is inserted. This insertion hole also has a horizontally long slot shape.

  Lock portions 51 can be locked to the upper and lower edges of the flange portion 73, respectively. The lock portions 51 are provided on both upper and lower surfaces of the external housing 50. When the cylindrical portion 71 is fitted to the outer periphery of the outer housing 50, both lock portions 51 are locked to both flange portions 73 from the inner peripheral side. As a result, the shield shell 70 is fixed to the outer housing 50.

  The plurality of electric wires 20 are collectively shielded by the braided wire S. The terminal of the braided wire S is put on the outer peripheral surface of the cylindrical portion 71, and a caulking ring 80 is crimped so as to cover the braided wire S from the outer periphery. Thereby, it becomes possible to collectively shield the space extending from the inside of the case 30 to the inside of the braided wire S without leakage.

  The fixing portion 72 has a form along the upper surface of the fitting cylinder portion 34. A bolt hole is opened in a portion along the upper surface of the fitting cylinder portion 34. The shield shell 70 is fixed to the case 30 by passing the fixing bolt B <b> 2 through the bolt hole and screwing the fixing bolt B <b> 2 into the upper portion of the fitting cylinder portion 34.

  Now, in this embodiment, the coating | cover 20B of the electric wire 20 is being fixed by the retainer R. FIG. As shown in FIG. 5, the retainer R has a donut shape and is configured by assembling a pair of upper and lower halves R1. On the mating surfaces of both halves R1, although not shown, concavo-convex portions that fit each other are formed. Thereby, the retainer R can hold | maintain in the state which assembled | attached both halves R1. A holding hole H is formed at the center of the retainer R, and a pair of upper and lower holding protrusions H1 protrude from the inner peripheral surface of the holding hole H. The upper holding projection H1 is arranged in the upper half R1 and the lower holding projection H1 is arranged in the lower half R1.

  As shown in FIG. 6, a pair of upper and lower retaining recesses C are formed at the upper and lower ends of the retainer R so as to be recessed toward the holding hole H. On the other hand, as shown in FIG. 1, a pair of upper and lower retaining projections (an example of the “first locking portion” of the present invention) 53 is provided on the inner peripheral surface of the wire housing hole 12 </ b> B on the axial center side of the wire housing hole 12 </ b> B. Protrusively provided. When the retainer R is inserted into the electric wire receiving hole 12B, the both retaining protrusions 53 are fitted into the both retaining recesses C. The rear end surface of the retaining protrusion 53 is a vertical surface that is vertically cut, and the rear end surface of the retaining recess C that is locked to this surface is also a vertically vertical surface. For this reason, both the retaining protrusions 53 are engaged with the both retaining recesses C from the front, and the retainer R is prevented from coming forward. In addition, since the front surface of the retaining protrusion 53 is a gently inclined surface, the retainer R can ride on the front surface of the retaining protrusion 53 when the retainer R is mounted.

  Further, in a state in which the both retaining protrusions 53 are fitted in the both retaining recesses C, the rear end surface of the retainer R comes into contact with the front end portion of the front retaining portion 54 (an example of the “second locking portion” in the present invention). The rear end surface of the retainer R is a vertical surface that stands up and down, and the front end portion of the front stop portion 54 that engages with this surface is also a vertical surface that stands up and down. For this reason, the front stop part 54 latches with respect to the retainer R from back, and the retainer R is prevented from coming off backward.

  Furthermore, the diameter dimension of the holding hole H of the retainer R is slightly smaller than the diameter dimension of the sheath 20 </ b> B of the electric wire 20. For this reason, when the retainer R is inserted into the wire receiving hole 12B after the covering 20B of the electric wire 20 is sandwiched between the two halves R1 and R2, the holding projection H1 bites into the covering 20B, and the covering 20B is inside the holding hole H. The entire wire 20 is slightly reduced in diameter by receiving a force radially inward from the peripheral surface. Thereby, the retainer R is fixed to the covering 20 </ b> B of the electric wire 20. Since the retainer R itself is prevented from coming off in both the front and rear directions inside the electric wire accommodation hole 12B, the relative movement of the electric wire 20 with respect to the holding hole H of the retainer R is restricted.

  In the electric wire 20, the retainer R is fixed at a position behind the barrel portion 24, and the electric wire 20 can be bent between the retainer R and the barrel portion 24. Therefore, the terminal 21 connected to the core wire 20 </ b> A of the electric wire 20 can move freely. Thereby, when the apparatus side connection piece 22 is connected to the terminal block 35 with the connection bolt B <b> 1, it can be regulated that an excessive force is applied to the apparatus side connection piece 22. That is, the terminals 21 can be aligned.

  Here, when the device-side connection piece 22 is not supported at all, the front end of the device-side connection piece 22 is inclined downward due to the weight of the device-side connection piece 22. In this case, when the device connector 10 is attached to the case 30, the front end of the device-side connection piece 22 collides with the terminal block 35. Therefore, in this embodiment, a cover 90 is provided, and the inclination of the device-side connection piece 22 downward is regulated by the cover 90.

  The cover 90 is configured to substantially match the outer shape of the terminal accommodating hole 12A, and the cover 90 is fixed to the front end opening of the terminal accommodating hole 12A by locking a locking means (not shown) to the inner housing 40. . Further, a terminal insertion hole 91 through which the device-side connection piece 22 is inserted is formed at a position facing the device-side connection piece 22 in the cover 90. The device-side connection piece 22 protrudes into the case 30 through the terminal insertion hole 91. The terminal insertion hole 91 is slightly larger than the device-side connection piece 22. For this reason, it can control that the apparatus side connection piece 22 inclines below, ensuring the alignment of the terminal 21. FIG. Therefore, when the device connector 10 is attached to the case 30, the device-side connection piece 22 can be prevented from colliding with the terminal block 35.

  As shown in FIG. 1, the cover 90 includes a guide portion 92 that extends rearward along the outer periphery of the terminal 21. The guide portion 92 has a function of guiding the device-side connection piece 22 of the terminal 21 to the terminal insertion hole 91 when the cover 90 is mounted from the front with respect to the front end opening of the terminal accommodating hole 12A. For this reason, the inner wall upper surface 92A of the guide portion 92 and the inner wall upper surface 91A of the terminal insertion hole 91 are flush with each other. Therefore, when the device-side connection piece 22 is inserted into the terminal insertion hole 91, the cover 90 is attached to the front end opening of the terminal accommodating hole 12A while the device-side connection piece 22 is in contact with the inner wall upper surface 92A of the guide portion 92. Good.

  The present embodiment has the above-described configuration. Next, an example of a procedure for attaching the device connector 10 will be described. As shown in FIG. 1, a rubber plug retainer 62, a rubber plug 61, a shield shell 70, a housing 11 and the like are passed through the electric wire 20 in advance. From this state, the terminal 21 is fixed in a state of being electrically connected to the electric wire 20 by crimping the barrel portion 24 of the terminal 21 to the exposed core wire 20A of the electric wire 20. Subsequently, the braided wire S is fixed in a state of being electrically connected to the shield shell 70 by crimping and crimping the braided wire S between the tube portion 71 and the caulking ring 80.

  Next, the coating 20B is sandwiched between the half halves R1 at a predetermined distance from the barrel portion 24, and the coating 20B is pressure-bonded at the holding hole H. When pressure-bonding to a position where the mating surfaces of both halves R1 are in contact with each other, both holding projections H1 pierce the coating 20B, and the coating 20B is slightly reduced in diameter.

  On the other hand, on the housing 11 side, the seal ring 60 is fitted in the mounting groove 42. At the same time, the shield shell 70 is attached to the housing 11 from the rear, the cylindrical portion 71 is fitted on the outer housing 50, and the flange portion 73 is locked and fixed to the lock portion 51. Further, the rubber stopper 61 is fixed by inserting the rubber stopper 61 and the rubber stopper holder 62 from the rear side of the outer housing 50 into the wire receiving hole 12 </ b> B and locking the holding portion 63 to the locking piece 52.

  The retainer R is accommodated in the terminal insertion hole 12 together with the electric wire 20 from the front by moving the passed electric wire 20 while relatively pulling it backward with respect to the housing 11 to which the shield shell 70 and the like are assembled. Is done. Here, since the outer peripheral shape of the retainer R is substantially the same as or slightly smaller than the hole shape of the electric wire receiving hole 12B, when the retainer R is inserted into the electric wire receiving hole 12B, the covering 20B is covered with both halves R1. Is held in a crimped state. Then, when the electric wire 20 is inserted into the electric wire receiving hole 12B together with the retainer R from the front, both the retaining projections 53 are fitted into the both retaining recesses C while the rear end portion of the retainer R gets over the both retaining projections 53. As a result, the retainer R is prevented from coming forward by the both retaining projections 53 and is prevented from coming backward by the front stop 54. Therefore, the movement of the electric wire 20 in the front-rear direction is restricted.

  Next, the cover 90 is attached to the front end opening of the terminal accommodating hole 12A from the front. At the time of mounting, the cover 90 is fixed to the inner housing 40 by a locking means (not shown) while the device side connection piece 22 of the terminal 21 is passed through the terminal insertion hole 91. As a result, the device side connection piece 22 protrudes forward from the terminal insertion hole 91, but a predetermined gap is set between the device side connection piece 22 and the opening edge of the terminal insertion hole 91. The device-side connection piece 22 is movable.

  When the assembly of the device connector 10 is thus completed, the fitting portion 41 of the inner housing 40 is inserted into the mounting hole 33 of the case 30. When the fitting portion 41 is inserted into the mounting hole 33, as shown in FIG. 1, the fixing portion 72 of the shield shell 70 attached to the housing 11 is disposed along the upper surface of the fitting cylinder portion 34, and the fixing bolt B2 is attached. The shield shell 70 and the housing 11 are fixed to the case 30 by screwing into the upper surface of the fitting cylinder portion 34 through the bolt holes of the fixing portion 72.

  As a result, the device-side connection piece 22 is disposed along the upper surface of the terminal block 35 and is screwed into the bolt hole of the terminal block 35 through the connection bolt B1 into the bolt hole 23 of the terminal 21 so that the terminal 21 is connected to the terminal block 35. Fixed in an electrically connected state. At this time, since the device-side connection piece 22 is allowed to move freely, the device-side connection piece 22 is corrected to a normal mounting posture as the connection bolt B1 is tightened. Therefore, an excessive load is not applied to the device-side connection piece 22.

  At this time, the case 30, the shield shell 70, and the braided wire S are electrically connected, and the electric wire 20, the terminal 21, and the like are shielded by these. Further, since the seal ring 60 is mounted between the mounting hole 33 and the fitting portion 41 and the rubber plug 61 is mounted between the electric wire housing hole 12B and the electric wire 20, the seal in the case 30 is sealed. Can be planned. Furthermore, the housing 11 does not need to be provided with a lance. As a result, the device-side connection piece 22 does not need to be provided with a lance locking hole, and thus the housing 11 can be downsized. That is, the housing 11 can be reduced in size while ensuring the aligning function of the terminals 21.

  As described above, in the present embodiment, since the retainer R is fixed to the sheath 20B of the electric wire 20 and this retainer R is fixed to the housing 11, the electric wire 20 can be prevented from coming off from the housing 11 in the front-rear direction. That is, it is not necessary to provide a lance or a lance locking hole as in the prior art, and the housing 11 can be downsized. Further, since the terminal 21 can be supported by the flexibility of the electric wire 20 itself, the terminal 21 can be aligned. Therefore, according to this embodiment, it is possible to achieve both the alignment of the terminals 21 and the miniaturization of the device connector 10.

  Further, it is possible to adopt a simple configuration in which both the retaining protrusions 53 are formed integrally with the housing 11 and the retaining protrusions 53 are locked to the retainer R from the front. Further, since the terminal 21 is prevented from coming off by using the front stop portion 54 that performs the front stop of the rubber plug 61, the configuration of the housing 11 does not have to be complicated.

<Other embodiments>
The present invention 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 of the present invention.
(1) Although the terminal loose insertion hole 12 is composed of the terminal accommodating hole 12A and the electric wire accommodating hole 12B in the above embodiment, according to the present invention, the terminal loose insertion hole 12 is formed by a single cylindrical accommodating hole. May be configured.

  (2) Although the terminal accommodating hole 12A and the electric wire accommodating hole 12B are arranged in the front-rear direction in the above embodiment, according to the present invention, the terminal accommodating hole 12A and the electric wire accommodating hole 12B are L-shaped. The L-shaped terminals may be accommodated in the holes 12A and 12B.

  (3) Although applied to the device connector 10 attached to the inverter device in the above embodiment, according to the present invention, it may be applied to the device connector attached to the motor.

  (4) Although the retaining recess C is provided on the retainer R side and the retaining projection 53 is provided on the housing 11 side in the above embodiment, the retaining projection is provided on the retainer R side and the retaining recess is provided on the housing 11 side. May be provided.

  (5) Although the retainer R is prevented from coming out backward using the front stop 54 in the above-described embodiment, according to the present invention, the rubber stopper 61 can be removed by the retainer R without providing the front stop 54. The front stop may be performed, and the retainer R may be prevented from coming out backward by the rubber plug 61 and the rubber plug retainer 62.

  (6) In the above embodiment, all parts except the terminal insertion hole 91 are covered with the cover in the front end opening of the terminal accommodating hole 12A. However, according to the present invention, at least the opening edge of the terminal insertion hole 91 is connected to the device side. Any structure that supports the piece 22 may be used, and the front end opening of the terminal accommodating hole 12A may not necessarily be covered.

  (7) Although the retainer R including the pair of halves R1 is illustrated in the above embodiment, according to the present invention, the covering 20B is formed using an integrated retainer in which the pair of halves R1 are connected by hinges. May be fixed.

DESCRIPTION OF SYMBOLS 10 ... Connector for apparatus 11 ... Housing 12 ... Terminal loose insertion hole (through hole)
DESCRIPTION OF SYMBOLS 20 ... Electric wire 20A ... Core wire 20B ... Cover | cover 21 ... Terminal 22 ... Equipment side connection piece 30 ... Case 53 ... Stop protrusion (1st latching | locking part)
54. Front stop (second locking portion)
61 ... Rubber plug 90 ... Cover 91 ... Terminal insertion hole R ... Retainer

Claims (4)

A housing that fits into a mounting hole provided through the case of the device;
A through-hole provided through the interior of the housing;
A terminal connected to a terminal of the core wire in an electric wire in which the core wire is covered with a coating;
A retainer fixed to the covering, inserted into the through-hole together with the electric wire, and having a holding projection protruding on an inner peripheral surface thereof;
A first locking portion that is provided inside the through hole and locks from one side in the axial direction of the through hole with respect to the retainer;
A second locking portion that is provided inside the through hole and locks from the other side in the axial direction of the through hole with respect to the retainer ,
The second locking portion is attached to the rear end opening of the through hole when the axial direction of the through hole is the front-rear direction, the inner side of the case is the front side, and the outer side of the case is the rear side. A connector formed at a front end portion of a front stop portion for performing a front stop of a rubber plug, and the front stop portion is locked to the retainer from the rear . A housing that fits into a mounting hole provided through the case of the device;
A through-hole provided through the interior of the housing;
A terminal connected to a terminal of the core wire in an electric wire in which the core wire is covered with a coating;
A retainer fixed to the covering, inserted into the through-hole together with the electric wire, and having a holding projection protruding on an inner peripheral surface thereof;
A first locking portion that is provided inside the through hole and locks from one side in the axial direction of the through hole with respect to the retainer;
A second locking portion that is provided inside the through hole and locks from the other side in the axial direction of the through hole with respect to the retainer,
The second locking portion is attached to the rear end opening of the through hole when the axial direction of the through hole is the front-rear direction, the inner side of the case is the front side, and the outer side of the case is the rear side. It is formed at the front end portion of the front stop portion that performs the front stop of the rubber stopper, and this front stop portion is locked to the retainer from the rear,
A device-side connection piece provided on the terminal and projecting from the end opening of the through hole into the case;
A connector comprising: a terminal insertion hole through which the device side connection piece is inserted in a loosely inserted state; and a cover attached to an end opening of the through hole. A housing that fits into a mounting hole provided through the case of the device;
A through-hole provided through the interior of the housing;
A terminal connected to a terminal of the core wire in an electric wire in which the core wire is covered with a coating;
A retainer fixed to the covering and inserted into the through hole together with the electric wire;
A first locking portion that is provided inside the through hole and locks from one side in the axial direction of the through hole with respect to the retainer;
A second locking portion that is provided inside the through hole and locks the retainer from the other side in the axial direction of the through hole;
A device-side connection piece provided on the terminal and projecting from the end opening of the through hole into the case;
A connector comprising: a terminal insertion hole through which the device side connection piece is inserted in a loosely inserted state; and a cover attached to an end opening of the through hole.   When the axial direction of the through hole is the front-rear direction and the inner side of the case is the front side and the outer side of the case is the rear side, the first locking portion protrudes from the inner peripheral surface of the through hole. The connector according to any one of claims 1 to 3, wherein the retaining protrusion is engaged with the retainer from the front.

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