JP2006085960A - Multi-pole connector and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-pole connector which can reduce components to compose multi-pole terminals, can simplify a structure of metallic mold for insert molding of a connector housing, and reduces cost of the whole. <P>SOLUTION: A multi-pole connector 10 has a plurality of terminals 22, 22' in the hood 11b of a connector housing 11 so as for tips 22a to project in upper and lower stages. The plurality of terminals 22, 22' with the respective tips 22a arranged in upper and lower stages are integrally molded into the multi-pole connector 10 by resin insert molding. Respective middle parts 22b of the plurality of terminals 22, 22' are arranged at predetermined intervals on a same surface in the housing body 11a of the connector housing 11. The respective tips 22a of the plurality of terminals 22, 22' are arranged in upper and lower stages with the shape formed into a predetermined shape. Notch channels 22e are formed on respective base ends 22c of the plurality of terminals 22, 22' for separation of connections 22d which are connected to the respective base ends and cut off after the insert molding of the connector housing 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a multipolar connector having a plurality of upper and lower terminals (multipolar terminals) in a hood portion of a connector housing, and a method for manufacturing the same.

  As this type of multipolar connector, there is one shown in FIGS. 16 to 18 (see, for example, Patent Document 1).

  As shown in FIGS. 16 and 18, the multipolar connector 1 is provided in a power feeding section 7 covered with a cover 6 of an actuator 5 such as a wiper motor. In the hood portion 1a of the multipolar connector 1, a plurality of upper and lower two-stage terminals 2 and 3 are arranged as shown in FIGS. The lower terminal 3 includes three plate-like terminals 3a, 3b, 3c arranged at equal intervals on one plane. The upper terminal 2 includes two plate-like terminals 2a and 2b arranged on a single plane different from the lower terminal 3 and separated by a predetermined distance. The upper terminals 2 are arranged in a stacked state (in multiple rows) on the lower terminals 3.

Japanese Patent Laid-Open No. 9-9562 (page 4, FIG. 10)

JP 2003-111348 A

  However, in the conventional multipolar connector 1, the plurality of terminals 2 and 3 in the upper and lower two stages are provided with separate plate-like terminals 2a, 2b and 3a, 3b, 3c that are integrated through respective connecting portions (not shown). After separately arranging in the hood portion 1a, each connecting portion is cut by, for example, press molding, thereby being separated and assembled into individual plate-like terminals 2a, 2b and 3a, 3b, 3c. Therefore, at least two or more conductive metal plates (components) constituting a plurality of terminals 2 and 3 in two upper and lower stages are required, resulting in an increase in cost. For this reason, the insert molding terminal mold presser becomes complicated, the insert molding mold becomes expensive, and the terminal insertion process at the time of molding takes time, which further increases the cost.

  Therefore, the present invention has been made to solve the above-described problems, and can reduce the number of components constituting multipolar terminals and simplify the structure of an insert molding die that forms a connector housing. It is an object of the present invention to provide a multipolar connector and a method of manufacturing the same that can further reduce the overall cost.

  According to the first aspect of the present invention, a plurality of terminals are arranged in the hood portion of the connector housing so that the tip portions protrude in two upper and lower stages, and the plurality of terminals in which the respective tip portions are arranged in two upper and lower stages respectively. In the multipolar connector integrally formed by resin insert molding, the middle portions of the plurality of terminals are arranged on the same surface at predetermined intervals on the housing body of the connector housing, and the plurality of terminals are disposed in the hood portion of the connector housing. The tip portions of the terminals are bent into a predetermined shape and arranged in two upper and lower stages, and are connected to the base ends of the plurality of terminals and cut after insert molding of the connector housing. A notch groove for separating the connecting portion is formed.

  According to the second aspect of the present invention, a plurality of terminals are arranged in the hood portion of the connector housing so that the tip portions protrude in two upper and lower stages, and the plurality of terminals in which the respective tip portions are arranged in two upper and lower stages respectively. In the manufacturing method of the multipolar connector integrally formed by resin insert molding, the long portion corresponding to the upper terminals protruding into the hood portion and the lower terminals are formed by press molding of one conductive metal plate. A corresponding short plate portion is formed, and a terminal plate is formed by forming a connecting portion for connecting the long portion and the short portion at the base ends. Next, at least each length of the terminal plate is formed. The leading end of the scale is bent into a predetermined shape, and then the terminal plate in which the long and short ends are arranged in two upper and lower stages by bending is inserted with resin. The connector housing is formed by over-shot molding, then, and separating the plurality of terminals by cutting the connecting portion exposed outward from the connector housing.

  According to a third aspect of the present invention, a plurality of terminals are arranged in the hood portion of the connector housing so that the tip portions protrude in two upper and lower stages, and the plurality of terminals in which the respective tip portions are arranged in two upper and lower stages respectively. In the manufacturing method of the multipolar connector integrally formed by resin insert molding, the long portion corresponding to the upper terminals protruding into the hood portion and the lower terminals are formed by press molding of one conductive metal plate. Corresponding short portions are respectively formed on the same surface, and a terminal plate is formed by punching and forming a connecting portion that connects each long portion and each short portion at each base end, and then this terminal plate The tip of each short part is bent into an L shape, and the tip of each long part is bent into a U shape. The terminal plates arranged in two upper and lower stages are insert-molded with resin to form a substantially L-shaped connector housing, and then the connecting portion exposed outside the connector housing is cut into a plurality of terminals. It is characterized by separating.

  The invention of claim 4 is the method of manufacturing the multipolar connector according to claim 2 or claim 3, wherein the tip of each long portion is bent on the same line above the tip of each short portion. The terminal plate is used.

  As described above, according to the first aspect of the present invention, there is provided a multipolar connector in which a plurality of terminals are insert-molded by cutting a notch for separation after insert molding of a connector housing and separating a connecting portion. It can be manufactured easily and reliably.

  According to the second and third aspects of the invention, since a plurality of terminals for insert molding can be configured using a terminal plate formed by press molding of a single conductive metal plate, a terminal component The number of parts can be reduced, and a multipolar connector can be manufactured in a short time and at low cost.

  According to the invention of claim 4, when the connector housing is insert-molded, the terminal plate can be inserted into the insert-molding die only once, and the die structure of the terminal pressing portion can be simplified. Therefore, the entire structure of the insert molding die can be simplified. Furthermore, the terminal mold insertion time in the insert molding process can be reduced, and a large number of multipolar connectors can be manufactured in a short time.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing a multipolar connector according to an embodiment of the present invention, FIGS. 2 to 7 are explanatory views showing a manufacturing process of a terminal plate used in the multipolar connector, and FIG. 8 is a connecting portion of the terminal plate. The perspective view which shows the state before cut | disconnecting, FIG.9 (a) is a side view which shows the state before cut | disconnecting the connection part of the terminal plate, FIG.9 (b) is the front view of the state before the cut | disconnection, FIG. 10 (a) is a side view showing a state after cutting the connecting portion of the terminal plate, FIG. 10 (b) is a front view after the cutting, and FIG. 11 (a) shows a state after the cutting. FIG. 11B is a bottom view of the state after cutting, FIG. 12 is a perspective view of a plurality of terminals used in the multipolar connector, and FIG. 13 is a state before the multipolar connector is attached to the actuator case. FIG. 14 shows a state in which each terminal of the multipolar connector is connected to the case substrate. To a cross-sectional view, FIG. 15 is a bottom view showing a state of connecting the terminals of the multipolar connector in the substrate.

  As shown in FIGS. 1, 13, and 14, a multipolar connector 10 includes a connector housing 11 made of a synthetic resin and having a substantially L-shaped side surface, and a midway portion 22 b inside the connector housing 11 by insert molding of the synthetic resin. A plurality of (six poles) terminals 22 and 22 'are embedded. The connector housing 11 includes a housing body 11a, a hood portion 11b, a fastening and fixing portion 11c, and a fitting portion 11d. The bolts (fastening means) 31 are passed through the fastening and fixing portions 11c of the connector housing 11 and screwed into the screw holes 30b formed in the outer surface 30a of the die-cast case 30 to be fastened and fixed. The fitting portion 11 d of the connector housing 11 is fitted into the opening 30 c of the case 30. The case 30 is used as a lid that forms a control part of an actuator for changing the angle of a variable nozzle of a turbocharger of a diesel engine, for example.

  Further, as shown in FIG. 10B, the plurality of terminals 22, 22 ′ that are insert-molded in the connector housing 11 are bent into a predetermined shape, and each tip 22 a is a hood 11 b of the connector housing 11. It is arranged and exposed so as to protrude in two upper and lower stages. Then, a mating connector (not shown) for an external power source and a communication system (not shown) is fitted into each of the tip portions 22a respectively arranged in the upper and lower stages of the plurality of terminals 22, 22 '. A power supply, a signal, etc. are supplied.

  Further, as shown in FIGS. 10A and 10B, the midway portions 22 b of the plurality of terminals 22 and 22 ′ are arranged at predetermined intervals on the same surface in the housing body 11 a of the connector housing 11. At the same time, the tip portions 22a of the terminals 22, 22 'are bent in a predetermined shape in the hood portion 11b of the connector housing 11 and arranged in two upper and lower stages. 8 and 9A and 9B, the base ends 22c of the plurality of terminals 22 and 22 'are in contact with the bottom surface of the fitting portion 11d of the connector housing 11 and arranged in a line. Exposed. The base ends 22c of the plurality of terminals 22 and 22 'are respectively connected to the base ends 22c and cut into the V-shaped cutout grooves 22e for separating the connecting portions 22d that are cut after the insert molding of the connector housing 11. Is formed.

  Next, a method for manufacturing the multipolar connector 10 having the above configuration will be described.

  First, as shown in FIGS. 2A and 2B, a single conductive metal plate 20 is press-molded to punch out and form a terminal plate 21. FIG. By this press molding, the terminal plate 21 has a long portion 21L corresponding to each upper terminal 22 protruding into the hood portion 11b of the connector housing 11 and a short portion 21S corresponding to each lower terminal 22 '. Each of the long portions 21L and the short portions 21S is formed on the surface, and a connecting portion 22d for connecting the base ends 22c to each other is formed. The distal end portion 22a of each long portion 21L of the terminal plate 21 is bent on the same line above the distal end portion 22a of each short portion 21S. Thereby, the blank (state without bending only by punching) of each long part 21L of the terminal plate 21 is longer than each short part 21S. Further, the base ends 22c of the long portions 21L and the short portions 21S of the terminal plate 21 are notched for separating the connecting portions 22d that are connected to the base ends 22c and are cut after insert molding of the connector housing. A groove 22e is formed.

  Next, as shown in FIGS. 3A and 3B, the tip 22a of each short portion 21S of the terminal plate 21 is bent upward and formed into an L shape by press molding.

  Further, as shown in FIGS. 4A and 4B, the distal end portion 22a of each long portion 21L of the terminal plate 21 is formed by bending upward into an L shape by press molding, and FIGS. As shown in b), the distal end portion 22a of each long portion 21L of the terminal plate 21 is bent and formed into an L shape downward by press molding at a position corresponding to the bending position of the distal end portion 22a of each short portion 21S. Next, as shown in FIG. 6 and FIGS. 7A to 7E, the distal end portion 22a of each long portion 21L of the terminal plate 21 is further bent into a U-shape by press molding, and each long portion is formed. The position of the tip of the tip portion 22a of 21L and the position of the tip of the tip portion 22a of each short portion 21S are aligned, and the base portions 22c of the long portions 21L and the short portions 21S of the terminal plate 21 are pressed upward. And bent into an L shape.

  Next, as shown in FIGS. 8 and 9, the terminal plate 21 in which the respective long portions 21 </ b> L and the respective distal end portions 22 a of the respective short portions 21 </ b> S that are bent into predetermined shapes by press molding are arranged in two upper and lower stages. Are inserted into a mold for insert molding (not shown) and insert-molded with a synthetic resin, thereby arranging therein a long portion 21L corresponding to each upper terminal 22 and a short portion 21S corresponding to each lower terminal 22 '. The substantially L-shaped connector housing 11 is integrally molded. At this time, the base ends 22c and the connecting portions 22d of the long portions 21L and the short portions 21S are exposed outside the fitting portions 11d of the housing body 11a of the connector housing 11, respectively.

  Next, as shown in FIGS. 10 and 11, the connecting portion 22d exposed to the outside of the fitting portion 11d of the housing body 11a of the connector housing 11 is cut through a notch groove 22e for separation, and the upper and lower stages. The terminals 22 and 22 'are separated. FIG. 12 shows the respective upper and lower terminals 22 and 22 'separated at this time. Thereby, as shown in FIGS. 1, 10 and 13, the multipolar connector 10 is completed. The connecting portion 22d exposed to the outside of the fitting portion 11d of the housing body 11a of the connector housing 11 can be easily cut and separated through the notch groove 22e for separation. For this reason, the multipolar connector 10 in which the tip portions 22a arranged in the upper and lower two stages of the six-pole terminals 22 and 22 ′ are exposed to the hood portion 11b of the connector housing 11 can be easily and reliably manufactured.

  As described above, since the terminal plate 21 formed by press-molding one conductive metal plate 20 can be used to form the six-pole terminals 22 and 22 ′ for insert molding, the terminal component 1 It can be made into pieces. That is, by using one terminal plate 21, the number of parts can be reduced, and the multipolar connector 10 can be manufactured in a short time and at a low cost. In particular, the connector of the multipolar connector 10 is obtained by using the terminal plate 21 formed by bending the distal end portion 22a of each long portion 21L on the same line above the distal end portion 22a of each short portion 21S into a predetermined shape. When the housing 11 is insert-molded, the terminal plate 21 can be inserted into the insert-molding die only once, and the die structure of the terminal pressing portion can be simplified. Thereby, the whole structure of the mold for insert molding can be simplified, and cost reduction can be achieved also from this point. Furthermore, the terminal mold insertion time in the insert molding process can be reduced, and the multipolar connector 10 can be manufactured in a large amount in a short time.

  In addition, the multipolar connector 10 manufactured in this way allows the bolts 31 to pass through the fastening and fixing portions 11c of the connector housing 11 and the screw holes 30b formed in the outer surface 30a of the die-cast case 30. It is fastened and fixed to the outer surface 30a of the case 30 by screwing. At this time, the fitting portion 11 d at the lower end of the housing body 11 a of the connector housing 11 is fitted into the opening 30 c of the case 30, and around the opening 30 c of the outer surface 30 a of the case 30 and the fastening fixing portion 11 c of the connector housing 11. The packing material 32 is interposed between the bottom surface and the space between the two is sealed.

  Further, the base ends 22c of the plurality of terminals 22, 22 'exposed at a predetermined distance in a line on the same surface of the bottom surface of the fitting portion 11d of the connector housing 11 are printed circuits bonded to the inner surface 30d of the case 30. The substrate 33 is electrically connected to bonding pads 33a on lands (not shown) via bonding wires 34, respectively. Then, an unillustrated external power supply or a mating connector for a communication system is fitted into each of the upper and lower end portions 22a of the plurality of terminals 22, 22 'exposed in the hood portion 11b of the connector housing 11, for example, A power supply, a signal, etc. are supplied from the vehicle side.

  Further, both sides of a connector 35 integrally formed by synthetic resin insert molding are fastened and fixed to one end side of the inner surface 30d of the case 30 via screws (fastening means) 37. The base end portions 36c exposed on the side surfaces of the L-shaped terminals 36 integrally formed by insert molding of the connector 35 and the bonding pads 33b on the land (not shown) formed on the printed circuit board 33 are bonding wires. 34 is electrically connected. Then, when a mating connector for a controlled electrical component (not shown) is fitted into each tip portion 36a exposed on the upper surface side of the plurality of terminals 36, for example, power, signals, and the like are supplied to the motor side.

  In the above embodiment, a multipolar connector having a 6-pole terminal with the tip projecting in two stages in the upper and lower sides in the hood portion of the connector housing has been described. However, a plurality of 8-pole and 10-pole terminals are provided. Of course, the above embodiment can be applied to the multipolar connector.

It is a perspective view which shows the multipolar connector of one Embodiment of this invention. (A) is a side view which shows the stamping molding state of the terminal plate used for the said multipolar connector, (b) is a front view of the same state. (A) is a side view which shows the state which bent the part corresponded to the front-end | tip part of each terminal of the lower stage of the said terminal plate, (b) is a front view of the same state. (A) is a side view showing a first bent state of a portion corresponding to the tip of each terminal on the upper stage of the terminal plate, and (b) is a front view of the same state. (A) is a side view showing a second bent state of a portion corresponding to the tip of each terminal on the upper stage of the terminal plate, and (b) is a front view of the same state. It is a perspective view which shows the state which bent further the part corresponded to the front-end | tip part of each terminal of the upper stage of the said terminal plate, and also bent the part corresponded to the base end part of each said terminal. (A) is the side view which shows the state which each bent the part corresponding to the front-end | tip part and base end part of each terminal of the upper-lower stage of the said terminal plate, (b) is a front view of the same state, (c) is the same state (D) is a bottom view in the same state, (e) is a cross-sectional view taken along line XX in FIG. It is a perspective view which shows the state before cut | disconnecting the connection part of the terminal plate of the said multipolar connector. (A) is a side view which shows the state before cut | disconnecting the connection part of the terminal plate of the said multipolar connector, (b) is a front view of the same state. (A) is a side view which shows the state after cut | disconnecting the connection part of the terminal plate of the said multipolar connector, (b) is a front view of the same state. (A) is a top view which shows the state after cut | disconnecting the connection part of the terminal plate of the said multipolar connector, (b) is a bottom view of the same state. It is a perspective view of a plurality of terminals used for the above-mentioned multipolar connector. It is a perspective view which shows the state before attaching the said multipolar connector to the case of an actuator. It is sectional drawing which shows the state which connected each terminal of the said multipolar connector to the board | substrate of the said case. It is a bottom view which shows the state which connected each terminal of the said multipolar connector to the board | substrate of the said case. It is a top view of the actuator which attached the conventional multipolar connector. It is a front view of the said conventional multipolar connector. It is explanatory drawing which shows the assembly | attachment state of the several terminal of the upper-lower stage of the said conventional multipolar connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Multipolar connector 11 Connector housing 11a Housing main body 11b Hood part 20 Conductive metal plate 21 Terminal plate 21L Long part 21S Short part 22, 22 'Terminal 22a Tip part 22b Midway part 22c Base end 22d Connection part 22e Notch groove

Claims (4)

A plurality of terminals are arranged in the hood portion of the connector housing so that the tip portion protrudes in two steps, and the plurality of terminals in which the tip portions are arranged in two steps are integrally formed by resin insert molding. Multi-pole connector
The middle portions of the plurality of terminals are arranged on the same surface at predetermined intervals on the housing body of the connector housing, and the tip portions of the plurality of terminals are bent and formed in a predetermined shape in the hood portion of the connector housing. And a plurality of terminals are formed at each base end, and a notch groove for separating a connecting portion that is connected to the base end and is cut after insert molding of the connector housing is formed. Multi-pole connector featuring A plurality of terminals are arranged in the hood portion of the connector housing so that the tip portion protrudes in two steps, and the plurality of terminals in which the tip portions are arranged in two steps are integrally formed by resin insert molding. In the manufacturing method of the multipolar connector,
By press forming a single conductive metal plate, a long portion corresponding to each upper terminal protruding into the hood portion and a short portion corresponding to each lower terminal are formed, and each of these long portions and A terminal plate formed with a connecting portion for connecting each short part at each base end is formed by punching, and then, at least the tip part of each long part of the terminal plate is bent into a predetermined shape, and then, By this bending, the terminal plate in which each long part and each tip part of each short part are arranged in two upper and lower stages is insert-molded with resin to form a connector housing, and then exposed to the outside of the connector housing. A method of manufacturing a multipolar connector, wherein the connecting portion is cut and separated into a plurality of terminals. A plurality of terminals are arranged in the hood portion of the connector housing so that the tip portion protrudes in two steps, and the plurality of terminals in which the tip portions are arranged in two steps are integrally formed by resin insert molding. In the manufacturing method of the multipolar connector,
By press forming a single conductive metal plate, a long portion corresponding to each upper terminal protruding into the hood portion and a short portion corresponding to each lower terminal are formed on the same surface, respectively. A terminal plate formed with a connecting part for connecting the long part and each short part at each base end is formed by punching, and then the tip part of each short part of this terminal plate is bent into an L shape, The tip of each long part is bent into a U-shape, and then the terminal plate in which each long part and each tip of each short part are arranged in two stages is inserted and molded with resin. Then, a connector housing having a substantially L-shaped side surface is formed, and then the connecting portion exposed outside the connector housing is cut and separated into a plurality of terminals. A method of manufacturing a multipolar connector according to claim 2 or claim 3,
A method of manufacturing a multipolar connector, comprising: using a terminal plate in which a tip portion of each long portion is bent and formed on the same line above a tip portion of each short portion.

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