JP6599149B2 - connector - Google Patents

Description

  The present invention relates to a connector, for example, a connector used in a relay portion of a power supply line that supplies power to an electromagnetic solenoid provided in an automatic transmission of an automobile.

  In a state where the housings of the male and female connectors are fitted to each other, the connector allows signals and power to be transmitted between the connectors by contacting the contact portions of the terminals held in the respective housings. (For example, refer patent document 1 etc.).

  The cover member 30 shown in FIG. 14 is attached by attaching the slide portions 34, 34 provided at both ends of the cover member 30 in the horizontal direction to the grooves 12 provided at both ends of the housing 10 in the horizontal direction. The cover member 30 is pressed toward the housing 10 while being inserted into the housing 12. As a result, the cover member 30 is provided in the housing 10 so as to receive the protruding portion 14 that extends horizontally from the center of the housing 10 in a groove 36 that extends horizontally on the lower surface side of the center portion. Combined.

JP 2004-327209 A

By the way, in the technique disclosed in Patent Document 1, two electric wires 40 are passed through the cover member 30 and the two electric wires 40 are simultaneously crimped to the terminals 20 and then the cover member 30 is fitted. For this reason, workers are required to work carefully, and another technique is required from the viewpoint of work efficiency. In particular, there is an operation of inserting the electric wire 40 into the electric wire insertion hole 32 of the cover member 30, but in the peeled state, the core wire 42 may be frayed. Further, since the stripped-out wire insulator portion is taken, there is a possibility that it will remain inside the completed connector 1. Furthermore, since the peeled electric wire 40 is set on the terminal 20 and the two electric wires 40 are crimped at the same time, there is a risk of poor crimping (wire fraying). When such a malfunction occurs, a short circuit or the like may occur inside the connector 1, or oil or the like may easily enter the interior depending on the environment in which the cover member 30 is fitted, depending on the usage environment. This will allow the conductor to enter and cause a short circuit. Confirmation of the state in which the cover member 30 is fitted into the housing 10 is performed by visual observation, so that sufficient care is required, and it is difficult to improve work efficiency.
From these viewpoints, another technique has been desired.

  The object of the present invention is made in view of such a situation, and is to provide a technique for solving the above-described problems.

The connector of the present invention has a housing and an electric contact portion that electrically contacts the mating terminal of the mating connector on one end side, and an electric wire connecting portion that electrically connects the terminal portion of the electric wire on the other end side. A plurality of terminals press-fitted and held in the housing, and a cover that covers the wire connection portion that is detachably attached to the housing, and is constituted by a convex portion of the cover and a concave portion of the housing The space between the spaces in which the plurality of terminals are accommodated is blocked by the uneven fitting structure, and the housing is surrounded by a pair of holder side walls and a holder standing wall that closes the side from which the electric wires are led out A pair of holder side walls are sandwiched from both sides when the cover is fitted into the housing, and a pair of the holders are held between the covers. When a pair of lock arms that are locked by lock protrusions provided on the outer surfaces of the side walls are protruded, and the external force acts in the direction in which the electric wire is led out, the holder standing wall A positioning boss that is in contact with the inside of the housing .
Further, the convex portion of the cover may include an auxiliary locking portion that locks with the housing, and a locking hole through which the auxiliary locking portion is inserted may be formed in the housing .

  According to the present invention, in a connector having a plurality of terminals, it is possible to suppress the occurrence of problems due to contamination in the housing.

It is a figure which shows the connector based on 1st Embodiment. It is a disassembled perspective view of the connector based on 1st Embodiment. It is a figure which shows the housing based on 1st Embodiment. It is a figure which shows the cover based on 1st Embodiment. It is the side view of the connector based on 1st Embodiment, and its sectional drawing. It is the front view and its sectional view of a connector concerning a 1st embodiment. It is a figure which shows the connector of the state in the middle of the fitting operation | work of a housing and a cover based on 1st Embodiment. It is the figure which showed the relationship between the holder part of the state which the external force acted on, and a cover base part based on 1st Embodiment. It is a perspective view of a connector concerning a 2nd embodiment. It is the perspective view of the housing which looked at the state attached to the bracket based on 2nd Embodiment from the bottom. It is a figure which expands and shows area | region A1 of FIG. 10 based on 2nd Embodiment, Comprising: Paying attention to the latching structure to the bracket of a 1st snap fit part and a 2nd snap fit part, it expands and shows. FIG. It is the figure which looked at the connector attached to the bracket based on 2nd Embodiment from the lower side. It is the figure which showed the state when the external force made to incline on the connector attached to the bracket based on 2nd Embodiment acted. It is a perspective view which shows the connector based on background art.

  Hereinafter, modes for carrying out the invention (hereinafter referred to as “embodiments”) will be described with reference to the drawings.

<First Embodiment>
1A and 1B are views showing a connector 101 according to the present embodiment, in which FIG. 1A is a perspective view, FIG. 1B is a front view (viewed from the drawing side of an electric wire 140), and FIG. It is the perspective view seen from the front lower side. FIG. 2 is an exploded perspective view of the connector 101.

  The connector 101 is used, for example, in a relay portion of a power supply line that supplies power to an electromagnetic solenoid provided in an automatic transmission of an automobile. The connector 101 shown here is a male connector, and includes a housing 110, two terminals 130, and a cover 150, and is fixed to a bracket 190 such as a wiring board. The housing 110 and the cover 150 are each integrally formed of an insulating synthetic resin material.

  3A and 3B are views showing the housing 110. FIG. 3A is a front view, FIG. 3B is a bottom view, and FIG. 3C is a cross-sectional view taken along the line DD in FIG. The housing 110 is integrally provided with a housing body 111 and a holder 121.

  The housing main body 111 is formed in a substantially rectangular parallelepiped shape, and a pair of insertion plate portions 113 are provided upright on both sides in the longitudinal direction of the housing main body 111. A partition plate 115 is provided upright at the center of the housing main body 111 sandwiched between the pair of insertion plates 113.

  A pair of terminal insertion holes 117 are formed between the pair of insertion plate portions 113. Between the pair of terminal mounting holes 117, the above-described partition plate portion 115 is provided.

  A box-shaped holder 121 having an open bottom surface is integrally provided as a part of the housing 110 on the front side of the housing main body 111 (the side from which the electric wire 140 is led out).

  On the outer surface of the holder side wall 121b on both sides of the holder portion 121, beak-shaped (convex) lock protrusions 126 are provided. The electric wire 140 drawing side of the holder side wall 121b is blocked by the holder standing wall 121a.

  The holder part 121 is formed in a box shape surrounded by the housing body part 111, the pair of holder side walls 121b and the holder standing wall 121a and having an open lower surface.

  A pair of electric wire insertion grooves 123 are formed in the holder standing wall 121a. The electric wire insertion groove 123 is notched in a U shape upward from the lower end surface of the holder standing wall 121a. The groove width of the wire insertion groove 123 is the same as or slightly narrower than the outer diameter of the wire 140 connected to the terminal 130.

  The terminal 130 is press-fitted and held in the housing 110. For example, as shown in FIG. 2, the terminal 130 has an electrical contact portion 131 that is in electrical contact with a mating terminal (not shown) of the mating connector on one end side. The other end side has a crimping part 135 to which the core wire at the terminal part of the electric wire 140 is crimped and electrically connected.

  The electrical contact portion 131 is press-fitted into the terminal insertion hole 117 of the housing 110. At this time, the electrical contact portion 131 has a cross-sectional shape that is the same as or slightly larger than the terminal insertion hole 117. The terminal 130 is positioned with high accuracy with respect to the housing 110 by press-fitting the electrical contact portion 131 into the terminal insertion hole 117 of the housing 110 from the lower side of the housing 110 in the figure.

  The core wire of the electric wire 140 is crimped to the crimping portion 135 connected to the other end side (lower side in FIG. 2) bent vertically from the electrical contact portion 131 press-fitted into the terminal insertion hole 117. It is fixed by crimping from the outer peripheral side of the outer casing. Note that the electric wire 140 is fixedly connected to the crimping portion 135 before the terminal 130 is inserted into the terminal insertion hole 117.

  In the L-shaped terminal 130 in which the electrical contact portion 131 is press-fitted into the housing 110, the crimping portion 135 is positioned inside the holder portion 121, and the electric wire 140 is led out from the holder portion 121. Here, as a region for accommodating a portion such as the crimping portion 135 of the terminal 130, a pair of main body side terminal accommodating portions 128 are formed in a concave shape on the bottom surface of the housing 110. That is, each main body side terminal accommodating portion 128 is formed in the front-rear direction from the wire insertion groove 123 to the terminal insertion hole 117.

  The electric wire 140 led out from the holder part 121 is led out by the terminal part being clamped from the wire radial direction by the electric wire insertion groove 123 and the cover 150 provided in the holder standing wall 121a of the holder part 121.

  A concave insulating groove 118 is formed in the front-rear direction (vertical direction in the drawing) at the center of the bottom surface of the housing 110 in the left-right direction (see, for example, FIG. 3B). A convex insulating rib 154 of a cover 150 described later is fitted into the insulating groove 118.

  A locking hole 124 that communicates in the vertical direction is formed on the holder 121 side of the insulating groove 118. An auxiliary locking portion 153 of a cover 150 described later is inserted into the locking hole 124.

  In the vicinity of the terminal insertion hole 117 on the bottom surface side of the housing main body 111, locking claw fixing portions 119 are formed on the outer peripheral edges of both ends. A locking claw 155 of the cover 150 described later is locked and fixed in the connector fixing hole 65.

  4A and 4B are views showing the cover 150. FIG. 4A is a perspective view, FIG. 4B is a front view, and FIG. 4C is a side view.

  The cover 150 includes a rectangular cover base portion 151. On the lower surface of the cover base portion 151, a pair of bracket locking portions (a snap fit portion 161 and a fitting cylinder 162) project.

  The snap fit portion 161 is provided with a fixing claw outside a part of a plurality of standing flexible pieces divided in the circumferential direction. The snap fit portion 161 is locked and fixed to the snap fit locking hole 191 of the bracket 190. The fitting cylinder 162 is inserted into the fitting cylinder fitting hole 192 of the bracket 190.

  A convex insulating rib 154 extending in the front-rear direction is formed at the center of the upper surface of the cover base portion 151 in the left-right direction. The insulating rib 154 fits into the concave insulating groove 118 of the housing 110 as described above.

  In the vicinity of the front end of the insulating rib 154, a positioning boss 152 and an auxiliary locking portion 153 are erected. The positioning boss 152 is located near the inside of the holder standing wall 121a when the cover 150 is fitted into the housing 110. At this time, the positioning boss 152 is positioned at or near to the holder standing wall 121a. The auxiliary locking portion 153 is locked to the locking portion 127.

  On both sides of the cover base portion 151, frame-like lock arms 157 project from the cover base portion 151. A rectangular lock hole 159 is formed in the lock arm 157.

  The pair of lock arms 157 sandwich the holder side wall 121b of the holder portion 121 from both sides when the cover 150 is fitted into the housing 110. The lock arms 157 overlapped with the holder side wall 121b are locked by the lock protrusions 126 of the holder side wall 121b entering the lock holes 159, respectively. As a result, the cover 150 is attached to the housing 110 in a fixed state.

  A pair of locking claws 155 are formed on the cover base portion 151 of the cover 150. On the other hand, as described above, the housing main body 111 of the housing 110 is formed with a pair of locking claw fixing portions 119 corresponding to the locking claw 155.

  Further, concave cover side terminal accommodating portions 156 are formed on both sides of the insulating rib 154 of the cover base portion 151. That is, it is formed in a concave shape in the front-rear direction to the vicinity of the locking claw 155 so as to correspond to the main body side terminal accommodating portion 128 of the housing 110.

  5 and 6 show the connector 101 in a completed state. 5A is a side view of the connector 101, and FIG. 5B is a cross-sectional view taken along the line AA in FIG. 5A. 6A is a front view of the connector 101, and FIG. 6B is a cross-sectional view taken along line BB in FIG. 6A.

  As shown in FIG. 5, in the connector 101, when the cover 150 is fitted and attached to the housing 110, the L shape of the terminal 130 is formed in the space formed by the main body side terminal accommodating portion 128 and the cover side terminal accommodating portion 156. The lower portion (the portion where the crimping portion 135 and the like are formed) is stored.

  Further, an insulating rib 154 is fitted in the insulating groove 118 between the two terminals 130 so as to partition them. That is, the path between the spaces in which the two terminals 130 are accommodated is blocked by the concave / convex fitting structure of the insulating groove 118 and the insulating rib 154. The creepage distance between the two terminals 130 is set to be sufficiently longer than a simple space distance, and it is possible to maintain a good shut-off state. Can be prevented.

  Further, as shown in FIG. 6B, since the auxiliary locking portion 153 is locked to the locking portion 127 on the holder standing wall 121a side of the insulating rib 154, even if the cover 150 is deformed during molding. The deformation can be corrected, and the deformation can be suppressed when a stress is applied from the outside. That is, the above-described contamination prevention function can be properly maintained.

  7A and 7B are views showing the connector 101 in a state where the housing 110 and the cover 150 are being fitted, FIG. 7A is a front view, and FIG. 7B is a CC view of FIG. 7A. It is sectional drawing. For example, as shown in FIG. 7B, the locking claw 155 of the cover base portion 151 is hooked on the locking claw fixing portion 119 of the housing main body 111 and rotated. That is, the locking claws 155 and 119 serve as fulcrums when the cover 150 is rotated.

  An arm protection wall 125 is formed on each holder side wall 121b provided with the lock protrusion 126 of the holder portion 121. The arm protection wall 125 is formed to protrude from the upper end of the holder side wall 121b to the outside by a predetermined amount.

  The cover 150 rotated with the locking claw 155 and the locking claw fixing portion 119 serving as a fulcrum, when the lock hole 159 of the lock arm 157 is locked to the lock projection 126, the upper side of the lock arm 157 is connected to the arm protection wall 125. Protected.

  FIG. 8 is a view showing the relationship between the holder part 121 and the cover base part 151 in a state where an external force is applied. FIG. 8A shows a state in which an external force is applied in the sliding direction (Z direction in the figure). FIG. 8B shows a state in which an external force is applied in the direction in which the snap fit portion 161 is detached (Y direction in the figure).

  As shown in FIG. 8A, when an external force is applied in the sliding direction, the tip 152 a of the positioning boss 152 first hits the holder standing wall 121 a of the holder portion 121. As a result, it is possible to prevent stress from being generated with respect to the locked state of the lock arm 157 and the lock protrusion 126 (lock beak). As shown in FIG. 8B, when an external force is applied in the direction in which the snap fit portion 161 is detached, the auxiliary locking portion 153 receives the external force together with the lock arm 157. As a result, stress concentration on the lock arm 157 can be suppressed.

<Second Embodiment>
FIG. 9 is a perspective view showing the connector 201 according to this embodiment. The connector 201 of the present embodiment is a modification of the first embodiment and has a feature in the structure for attaching the connector 201 to the bracket 290. Here, the description will be made mainly focusing on the attachment structure.

  The connector 201 includes a housing 210, two terminals 230 (male terminals), and a cover 250, and is fixed to a bracket 290 that is a wiring board or the like. The housing 210 is integrally provided with a housing main body 211 and a holder 221. A pair of insertion plate portions 213 are provided upright on both longitudinal sides of the housing main body 211. A partition plate portion 215 is provided upright at a central portion of the housing main body portion 211 sandwiched between the pair of insertion plate portions 213.

  A pair of terminal insertion holes 217 are formed between the pair of insertion plate portions 213. Between the pair of terminal mounting holes 217, the above-described partition plate portion 215 is provided.

  On the front side of the housing main body 211, a box-shaped holder portion 221 having an open bottom surface is integrally provided as a part of the housing 210.

  The terminal 230 is press-fitted and held in the housing 210, and the electrical contact portion 231 is press-fitted into the terminal insertion hole 217 of the housing 210. When the electrical contact portion 231 is inserted into the terminal insertion hole 217 of the housing 210 and the cover 250 is fitted, the electric wire 140 is led out from the holder portion 221.

  The cover 250 includes a rectangular cover base portion 251. A pair of bracket locking portions (a first snap fit portion 261 and a second snap fit portion 262) project from the lower surface of the cover base portion 251.

  FIG. 10 is a perspective view of the housing 210 as viewed from below with the bracket 290 attached thereto. FIG. 11 is an enlarged view of the area A1 of FIG. 10, and shows the first snap fit portion 261 and the second snap fit portion 262 with an engagement structure to the bracket 290 in an enlarged manner. FIG. FIG. 12 is a view of the connector 201 attached to the bracket 290 as viewed from below.

  Here, as the holes for locking formed in the bracket 290, there are two holes, a round hole 291 that the first snap fit part 261 locks and a long hole 292 that the second snap fit part 262 locks. One is formed. The round hole 291 performs a reference function, and the long hole 292 performs a centering function.

  The housing 210 is assembled to the bracket 290 after the two terminals 230 are press-fitted into the terminal insertion holes 217 and the cover 250 is attached. That is, the first snap fit portion 261 is inserted into the round hole 291, and the second snap fit portion 262 is inserted into the elongated hole 292.

  The first snap fit portion 261 has a fixed claw provided on the outside of a part (two outside) of a plurality of standing flexible pieces formed by dividing the cylindrical structure into four in the circumferential direction. Yes. That is, the first snap fit portion 261 includes a claw-shaped flexible piece 261a provided with an umbrella-shaped fixed claw and a claw-free flexible piece 261b without a fixed claw. Two flexible pieces 261a with claws are formed on the outer side in the left-right direction. Two clawless flexible pieces 261b are formed on the inner side (the second snap fit portion 262 side).

  The second snap fit portion 262 is formed symmetrically with the first snap fit portion 261. In other words, the second snap fit portion 262 includes two outer claw flexible pieces 262a and two inner clawless flexible pieces 262b.

  When the first snap fit portion 261 is inserted into the round hole 291 and the second snap fit portion 262 is inserted into the elongated hole 292, the first snap fit portion 261 and the second snap fit portion 262 can be clawed. The flexible pieces 261 a and 262 a are engaged with the edges of the round hole 291 and the long hole 292.

  FIG. 13 is a view showing a state when an external force for tilting is applied to the connector 201 attached to the bracket 290. Since the first snap fit portion 261 and the second snap fit portion 262 are formed with claw flexible pieces 261a and 262a so as to be bilaterally symmetric, the claw flexible pieces 261a and 262a are round holes. It is easy to hang on the edge of 291 and the long hole 292. That is, the occurrence of the inclination of the connector 201 with respect to the bracket 290 can be suppressed. As a result, even when the connector 201 attached to the bracket 290 is transported, it is possible to prevent the connector 201 from being detached due to vibration, and to prevent the wire 240 from being rolled up due to the tension. In addition, the inclination suppression effect increases as the outer diameters of the cylindrical standing flexible pieces of the first snap fit portion 261 and the second snap fit portion 262 are increased.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it is understood by those skilled in the art that various modifications can be made to each of those components and combinations thereof, and such modifications are also within the scope of the present invention.

  For example, in the first embodiment, the housing 110 and the cover 150 are configured separately, but the housing 110 and the cover 150 may be integrally formed via a thin hinge portion. Further, the number of terminals 130 may be three or more. In this case, the number of terminal insertion holes 117 and insulating ribs 154 increases according to the number of terminals 130.

101, 201 Connector 110, 210 Housing 111, 211 Housing body part 113, 213 Insertion plate part 115, 215 Partition plate part 117, 217 Terminal insertion hole 118 Insulating groove 119 Locking claw fixing part 121, 221 Holder part 121a Holder standing wall 121b Holder side wall 123 Electric wire insertion groove 124 Locking hole 125 Arm protection wall 126, 226 Lock projection 128 Main body side terminal accommodating portion 130, 230 Terminal 131, 231 Electric contact portion 135 Crimp portion 140, 240 Electric wire 150, 250 Cover 151 Cover base portion 152 Positioning boss 153 Auxiliary locking portion 154 Insulating rib 155 Locking claw 156 Cover side terminal accommodating portion 157 Lock arm 159 Lock hole 161 Snap fitting portion 162 Fitting cylinder 190, 290 Bracket 191 Snap fit locking hole 19 Fitting tube fitting hole 261 first snap fit portions 261a, 262a pawl flexible pieces 261b, 262b nail without the flexible piece 262 second snap-fit portion 291 circular hole 292 elongated hole

Claims (2)

A housing;
One end has an electrical contact portion that makes electrical contact with the mating terminal of the mating connector, and the other end side has a wire connection portion that is electrically connected to the terminal portion of the wire, and is press-fitted and held in the housing. Multiple terminals,
A cover that covers the wire connection portion detachably attached to the housing;
With
A path between the spaces in which the plurality of terminals are accommodated is blocked by the concave-convex fitting structure formed by the convex portion of the cover and the concave portion of the housing,
The housing is integrally provided with a box-shaped holder portion surrounded by a pair of holder side walls and a holder standing wall that closes the side from which the electric wire is led out,
When the cover is fitted into the housing, the pair of holder side walls of the holder portion are sandwiched from both sides and locked by lock protrusions respectively provided on the outer surfaces of the pair of holder side walls. A pair of lock arms is projected,
The connector , wherein the convex portion of the cover includes a positioning boss that abuts on the inner side of the holder standing wall when an external force is applied in a direction in which the electric wire is led out . The convex portion of the cover includes an auxiliary locking portion that locks with the housing,
It said housing connector according to claim 1, wherein a locking hole into which the auxiliary locking portion is inserted is formed.

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