JP2008235189A - Connector housing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector housing which prevents a fall of the connector housing into an equipment case by temporarily fixing the connector housing to the equipment case finely movably in the plane direction of the case, and absorbs a tolerance and slippage occurring at connection with the terminal on the equipment side. <P>SOLUTION: The connector housing 10 is constructed of a male connector housing 20 and a female connector housing 30. A first projection part 22 and a second projection part 21 which constitute a temporary fixing lock mechanism on the side face part of the male connector housing main body 23, are formed to be integrated with the male connector housing main body 23. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a connector housing. In particular, the present invention relates to a connector housing for a connector that electrically connects a device and an electric wire under high voltage, high current, and a waterproof environment.

  Since a motor used in a hybrid electric vehicle (HEV) is a three-phase AC drive, three wire harnesses that electrically connect the inverter and the motor are required. Further, the battery for driving the motor has a high voltage, and two wire harnesses are required in addition to the low voltage 12V system. Accordingly, two or three electric wires for power transmission and reception used in the hybrid system in the HEV vehicle are routed.

  In addition, the power transmission / reception among the inverter, battery, and motor is large, and the AC frequency is high, so the wire harness may become a noise source, and the wire harness for HEV vehicles needs to ensure a shielding function. It becomes.

  Therefore, a connector having a shield function for connecting the device side and the electric wire has been proposed. In patent document 1, it was fixed to the terminal part of the shield member which encloses the electric wire side terminal and the electric wire side terminal for connecting the apparatus side terminal to the terminal of an unshielded type electric wire, and the electric wire 2 or 3 collectively, A shield connector for equipment having a shield shell composed of an inner shell and an outer shell has been proposed. Here, the inner shell has an inner cylinder part, and the outer shell has an outer cylinder part, and the terminal part of the shield member is sandwiched between the outer cylinder part and the inner cylinder part press-fitted into the outer cylinder part. As a result, the shield shell is fixed.

  A male-female connector housing comprising a female connector housing incorporating female terminals connected to electric wires and a male connector housing incorporating male terminals connected to female terminals that can be attached to the device side Has also been proposed.

Here, the terminal connected to the electric wire is called a female terminal, the housing in which the female terminal is incorporated is called a female connector housing, the terminal connected to the female terminal is called a male terminal, and the housing in which the male terminal is incorporated Called male connector housing.
JP 2002-329557 A

  However, conventionally, the proposed male / female connector housing has been provided with a waterproof packing between the male connector housing attached to the device. Since this waterproof packing is attached in a state of being fitted into the outer surface of the male connector housing like an O-ring, the tolerance generated when connecting the terminal on the device side and the terminal of the male connector housing There was a problem that it was difficult to absorb the deviation.

  In addition, when the male connector housing is fixed to the shield case while being inserted into the mounting hole of the shield case of the device, the male connector housing slips through the mounting hole and falls into the shield case. .

  The present invention has been made to solve the above-described problems. By temporarily fixing the connector housing to the device case so as to be movable in the plane direction of the case, the connector housing can be moved into the device case. An object of the present invention is to provide a connector housing capable of preventing a fall and absorbing a tolerance and a deviation generated in connection with a terminal on a device side.

  The following invention is provided to solve the above-mentioned conventional problems.

  A connector housing according to a first aspect of the present invention is a connector housing for a connector that electrically connects an electric wire to a device in which a device-side terminal is installed inside the device case. A first connector housing body that has a first connector housing that is inserted into the provided mounting hole and is mounted on the device case; and the first connector housing houses a male terminal connected to the device-side terminal. A first convex portion formed on the outer surface of the first connector housing main body so as to interfere with the mounting hole when inserted into the mounting hole, and the device case through the mounting hole. Only when moving, elastically deforms while contacting the side surface of the mounting hole, passes through the mounting hole, returns to its original shape when passing through the mounting hole, and is inserted into the first convex portion. A second convex portion formed on the outer surface of the first connector housing main body portion on the insertion end side of the first convex portion, wherein the gap is substantially the same as the thickness width of the device case, When the first connector housing is inserted through the mounting hole, the device case is sandwiched between the first convex portion and the second convex portion in a state in which the first connector housing can be slightly moved in the plane direction of the device case. Thus, the first connector housing is configured to be temporarily fixed to the device case.

  Thereby, the 1st connector housing can be temporarily fixed to the apparatus case of an apparatus with a simple mechanism. Therefore, when the first connector housing is fixed to the equipment case while being inserted into the equipment case mounting hole of the equipment, the first connector housing is prevented from slipping through the mounting hole and falling into the equipment case. Can do.

  Here, the 1st connector housing main-body part, the 1st convex part, and the 2nd convex part may be formed integrally.

  The connector housing according to the second aspect of the present invention is the connector housing according to the first aspect of the present invention, wherein the shape of the cross-section in the plane direction of the device case of the first connector housing main body is the mounting hole. When overlapped with the shape of a cross section in the plane direction of the device case, it is included in the shape of a cross section in the plane direction of the device case.

  Thereby, by moving the first connector housing minutely in the plane direction of the device case in a temporarily fixed state, tolerances and deviations that occur in the operation of connecting the terminal portion of the device and the terminal portion of the first connector housing, Can be easily absorbed.

  A connector housing according to a third aspect of the present invention is the connector housing according to the first or second aspect of the present invention, and includes a second connector housing that fits into the first connector housing, and the second connector housing. Comprises a waterproof packing having a shape that comes into contact with the device case and surrounds the outer periphery of the first connector housing when the second connector housing is fitted into the first connector housing. In a state where the second connector housing is fitted to the housing, the waterproof packing is used to seal the space between the device case and the second connector housing in a watertight manner.

  As a result, the processing work for mounting the waterproof packing on the housing can be simplified, and the waterproof failure due to tolerances and misalignments that occur in the work of connecting the terminal part of the device and the terminal part of the first connector housing can be prevented. can do.

  A connector housing according to a fourth aspect of the present invention is the connector housing according to any one of the first to third aspects of the invention, wherein the first connector housing main body has a third convex portion or a concave portion on an outer surface thereof. The mounting hole has a notch or a protrusion having a shape corresponding to the third convex portion or the concave portion at a predetermined position.

  Accordingly, when the first connector housing is assembled to the device case while being inserted through the mounting hole, the third convex portion or the concave portion of the first connector housing is fitted in correspondence with the notch portion or the protruding portion of the mounting hole. That is, if the first connector housing is not in a predetermined state, the third protrusion or recess cannot interfere with the notch or protrusion of the attachment hole and cannot be assembled to the attachment hole. Therefore, it is possible to prevent an assembly error (misassembly) when assembling the device case and the first connector housing.

  According to the present invention, the first connector housing can be temporarily fixed to the device case of the device by a simple mechanism. Therefore, when the first connector housing is fixed to the equipment case while being inserted into the equipment case mounting hole of the equipment, the first connector housing is prevented from slipping through the mounting hole and falling into the equipment case. Can do.

  In addition, it is easy to move the first connector housing slightly in the plane direction of the device case while temporarily fixing the tolerances and deviations that occur in the operation of connecting the terminal portion of the device and the terminal portion of the first connector housing. Can be absorbed into.

  In addition, the processing work for mounting the waterproof packing on the housing can be simplified, and the waterproofing failure due to the tolerance and displacement generated in the work of connecting the terminal part of the device and the terminal part of the first connector housing can be prevented. be able to.

  In addition, it is possible to prevent assembly errors (misassembly) when assembling the device case and the first connector housing.

  An embodiment of the present invention will be described with reference to the drawings. In addition, the embodiment described below is for explanation, and does not limit the scope of the present invention. Accordingly, those skilled in the art can employ embodiments in which each or all of these elements are replaced by equivalents thereof, and these embodiments are also included in the scope of the present invention.

  A connector housing according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

  FIG. 1 is a view showing an example of a connector housing in a state where a male connector housing and a female connector housing according to an embodiment of the present invention are fitted. 1A is a bottom view of the connector housing from the direction of electric wire connection of the female connector housing, and FIG. 1B is a side view of the connector housing from the direction of the connection surface with the device terminal. (C) is a side view of the connector housing from the direction orthogonal to the connection surface with the device terminal, and FIG. 1 (d) is a view of the connector housing showing a state in which the male connector housing and the female connector housing are fitted together. It is sectional drawing.

  FIG. 2 is a view showing an example of a connector housing before fitting according to an embodiment of the present invention. FIG. 2A is a side view of the female connector housing, and FIG. 2B is a side view of the female connector housing.

  FIG. 3 is an exploded perspective view of an example of the connector housing according to the embodiment of the present invention. FIG. 4 is a view for explaining attachment of the connector housing according to the embodiment of the present invention to a device. 4A is a side view of the female connector housing temporarily fixed to the shield case from the direction of the connection surface with the device terminal, and FIG. 4B is a temporary view of the shield case from the direction of the connection terminal. 4 (a) is a side view of the female connector housing temporarily fixed to the shield case from a direction perpendicular to the connection surface with the device terminal. FIG. (D) is a bottom view showing a mounting hole of the shield case.

  As shown in FIG. 3, the connector housing 10 includes a male connector housing 20 and a female connector housing 30. The male connector housing 20 is a housing in which a male terminal 24 connected to a terminal on the device side is incorporated, and the first convex portion 22 and the first convex portion 22 constituting the temporary locking mechanism on the side surface portion of the male connector housing main body portion 23. Two convex portions 21 are formed integrally with the male connector housing main body portion 23.

  As shown in FIG. 4, the male connector housing body 23 has a cross-sectional shape that overlaps the shape of the mounting hole 55 so that it can pass through the mounting hole 55 opened in the shield case 50 of the device. The shape of the cross section of the connector housing main body 23 is included in the shape of the mounting hole 55. More specifically, the male connector housing main body 23 is formed to be slightly smaller than the mounting hole 55 so that it can be moved minutely in the planar direction of the shield case 50 while being inserted into the mounting hole 55.

  Further, as shown in FIG. 4, the first convex portion 22 becomes an insertion limit (movement limit) of the male connector housing 20 when the male connector housing 20 is inserted into the shield case 50 from the mounting hole 55. It is formed as follows. Here, the insertion direction is the Z direction in the figure.

  Moreover, the 2nd convex part 21 becomes the shape inclined in the taper shape with respect to the insertion direction (refer FIG. 3), and when it inserts from the attachment hole 55, it can elastically deform and can pass the attachment hole 55. It is like that. Moreover, the 2nd convex part 21 returns to the original shape when penetrating the attachment hole 55, and is formed so that it cannot pass through the attachment hole 55 in the reverse insertion direction. Further, as shown in FIG. 2B, the first protrusions so that the gap L between the first protrusions 22 and the second protrusions 21 is substantially the same as the thickness width of the shield case 50. It is formed on the insertion end side from 22.

  As shown in FIG. 4, when the second convex portion 21 passes through the attachment hole 55, the temporary fixing lock mechanism sandwiches the shield case 50 between the first convex portion 22 and the second convex portion 21. The male connector housing 20 is temporarily fixed to the shield case 50. Further, the temporary fixing lock mechanism can finely move the male connector housing 20 with respect to the planar direction of the shield case 50.

  Therefore, the temporary connector lock mechanism can prevent the male connector housing 20 from dropping into the shield case 50. In addition, tolerances and deviations that occur when the male terminal 24 and the device-side terminal 51 are connected can be easily absorbed by the minute movement described above.

  Further, as shown in FIG. 4, a third convex portion 25 for preventing a wrong combination in the insertion direction into the shield case 50 (incorrect assembly) is provided on the side surface portion of the male connector housing main body portion 23. 23 is formed integrally. The cross-sectional shape of the third convex portion 25 is formed slightly smaller than the shape of the cutout portion 56 of the attachment hole 55. By matching the cross-sectional shape of the third convex portion 25 and the shape of the notch portion 56, erroneous assembly when the male connector housing 20 is inserted into the shield case 50 is prevented.

  As shown in FIG. 3, the female connector housing 30 is a housing in which a female terminal 38 connected to the electric wire 41 is incorporated, and includes an insulating housing portion 32, a metal housing portion 33, a waterproof packing 31, a retainer 40, and a packing. 39 and a connection member 37.

  The insulating housing part 32 protects the female terminal 38 connected to the electric wire 41. A convex portion 34 is integrally formed on the outer surface of the insulating housing portion 32. The convex portion 34 has a shape inclined in a taper shape with respect to the (−Z) direction, and is formed so as to fit into a concave portion 35 of a metal housing portion 33 described later.

  As shown in FIG. 2, the metal housing portion 33 is electrically connected to a shield member 42 formed so as to surround the electric wire 41, and the female connector housing 30 is fitted to the male connector housing 20, thereby shielding the shield. When attached to the case 50 (see FIG. 4), it connects to the shield case 50 and serves to ground the shield member 42. The metal housing portion 33 has a recess 35 (see FIG. 3) on the inner surface. By fitting the convex portion 34 of the insulating housing portion 32 and the concave portion 35 of the metal housing portion 33, the insulating housing portion 32 and the metal housing portion 33 are combined.

  As shown in FIG. 2, the waterproof packing 31 is for waterproofing on the device side. When the female connector housing 30 is fitted to the male connector housing 20 and attached to the shield case 50, the shield case 50 is provided. By waterproofing, the outer periphery of the male connector housing 20 is surrounded.

  The retainer 40 is for holding the electric wire 41, and the electric wire 41 is sandwiched between the retainer 40a and the retainer 40b in the Y direction. The packing 39 is for waterproofing a portion connected to the electric wire 41. The connection member 37 is for connecting the shield member 41 to the metal housing portion 33, and is bolted by the connection member 37a and the connection member 37b in the Y direction.

  As described above, by providing the female connector housing 30 with the waterproof packing 31 for waterproofing on the device side, the processing work for mounting the waterproof packing on the housing can be simplified, and the terminal portion 51 of the device and It is possible to prevent poor waterproofing due to tolerances and deviations that occur in the operation of connecting the male terminal 24 to the male connector housing 20.

  Although the connector housing 10 according to the present embodiment has been described above, the present invention is not limited to the above-described embodiment, and can be implemented in various forms.

  In the embodiment, in order to prevent erroneous assembly of the connector housing 10 to the shield case 50, the cutout portion 56 is formed in the mounting hole 55, and the third convex portion 25 is formed on the side surface portion of the male connector housing main body portion 23. Although the structure is provided, the structure for preventing erroneous assembly is not limited thereto.

  For example, a configuration may be adopted in which a projection that projects from the peripheral edge toward the center is provided at a predetermined position of the mounting hole 55 and a recess having a shape corresponding to the projection is provided in the male connector housing main body 23. Good.

  Further, for example, a rib (projection) that rises from the peripheral edge of the mounting hole 55 may be provided at a predetermined position, and a concave portion having a shape corresponding to the rib may be provided in the male connector housing main body 23. Even with these structures, the effect of preventing erroneous assembly can be obtained.

It is the figure which showed an example of the connector housing of the state which the male connector housing concerning one Embodiment of this invention and the female connector housing fitted. It is the figure which showed an example of the connector housing before the fitting concerning one Embodiment of this invention. It is a disassembled perspective view of an example of the connector housing concerning one Embodiment of this invention. It is a figure for demonstrating attachment to the apparatus of the connector housing concerning one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Connector housing 20 Male connector housing 21 2nd convex part 22 1st convex part 23 Male connector housing main-body part 30 Female connector housing 31 Waterproofing packing 32 Insulation housing part 33 Metal housing part

Claims (4)

A connector housing for a connector for electrically connecting an electric wire to a device in which a device side terminal is installed inside the device case,
Having a first connector housing that is inserted into a mounting hole provided in the device case and is attached to the device case;
The first connector housing includes:
A first connector housing body for housing a male terminal connected to the device side terminal;
A first protrusion formed on the outer surface of the first connector housing body so as to interfere with the attachment hole when inserted into the attachment hole;
Elastically deforming while contacting the side surface of the mounting hole only when moving into the device case through the mounting hole, passing through the mounting hole, and returning to the original shape when passing through the mounting hole, The gap in the insertion direction with the first convex portion is substantially the same as the thickness width of the device case, and is formed on the outer surface of the first connector housing main body on the insertion end side with respect to the first convex portion. A second convex portion;
With
When the first connector housing is inserted through the mounting hole, the device case is sandwiched between the first convex portion and the second convex portion in a state in which the first connector housing can be slightly moved in the plane direction of the device case. The connector housing is configured so that the first connector housing is temporarily fixed to the device case.   When the shape of the cross-section in the plane direction of the device case of the first connector housing main body overlaps the shape of the cross-section in the plane direction of the device case of the mounting hole, the shape of the cross-section in the plane direction of the device case The connector housing according to claim 1, wherein the connector housing is included. A second connector housing that fits into the first connector housing;
The second connector housing is
When the second connector housing is fitted to the first connector housing, the waterproof casing is in contact with the device case and has a shape surrounding the outer periphery of the first connector housing,
The watertight seal between the device case and the second connector housing is provided by the waterproof packing in a state where the second connector housing is fitted to the first connector housing. The connector housing according to 1 or 2. The first connector housing main body has a third convex portion or a concave portion on an outer surface thereof,
4. The connector housing according to claim 1, wherein the attachment hole has a notch or a protrusion having a shape corresponding to the third protrusion or the recess at a predetermined position. 5.

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