JP2018152166A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which enables cost reduction and improvement in assemblability.SOLUTION: A connector comprises: a housing 31, detachably fitted to a mating housing 21, which has a plurality of terminal housing chambers 32 formed therein; and a front holder 40 which restricts detachment of a terminal 50 housed in one of the terminal housing chambers 32. A wire 60 is inserted through one of the terminal housing chambers 32 of the housing 31, and the terminal 50 is connected to a terminal part 61, of the wire 60, which is exposed to the outside. Thereafter, the wire 60 is pulled so that the terminal 50 is housed in the terminal housing chamber 32 of the housing 31. In the connector 30, the housing 31 and the front holder 40 are formed integrally with each other via a hinge 42.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a connector provided with a front holder that regulates the withdrawal of a terminal to the fitting surface side of a mating connector.

  As this type of connector, there is one shown in FIGS. 10 and 11 (see, for example, Patent Document 1).

  As shown in FIGS. 10 (a), (b), (c) and FIG. 11, the connector 1 includes a terminal 8 to which a terminal of an electric wire 7 is connected, and a cavity 3 into which the terminal 8 can be inserted from one direction. Has a housing 2 formed over the longitudinal direction, and a front holder 5 detachably attached to a distal end portion of the housing 2 on the insertion side of the terminal 8.

  As shown in FIG. 10 (c), the cavity 3 has a step portion 4 that locks the terminal 8 inserted from one direction and restricts the movement in the other direction. It is held in the cavity 3 of the housing 2 by the front holder 5. The front holder 5 is formed with a rectangular insertion hole 6 through which a tab of a mating connector terminal (not shown) is inserted.

JP 2012-69258 A JP 2001-155811 A

  However, in the conventional connector 1, since the two parts of the housing 2 and the front holder 5 need to be molded separately, the number of parts is increased correspondingly and the cost is high. In addition, it is necessary to manage and assemble the two parts of the housing 2 and the front holder 5, and the assy property (assembleability) is poor.

  Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a connector capable of reducing cost and improving assembly.

  According to a first aspect of the present invention, there is provided a housing that is detachably fitted to a counterpart housing and has a plurality of terminal accommodating chambers formed therein, and a front holder that regulates the withdrawal of the terminals accommodated in the terminal accommodating chambers. In the connector for accommodating the terminal in the terminal accommodating chamber of the housing by connecting the terminal to the terminal of the electric wire that is exposed to the outside by inserting the electric wire into the terminal accommodating chamber of the housing, and then pulling the electric wire. The housing and the front holder are integrally formed via a hinge.

  The invention according to claim 2 is the connector according to claim 1, wherein the front holder is connected to the housing by a different number of hinges according to the number of terminals accommodated in the same shape. It is characterized by.

  The invention according to claim 3 is the connector according to claim 2, wherein a hinge housing space is formed in the mating housing, and the hinges having different numbers are fitted to the mating housing to which the housing is fitted. It is housed only in the hinge housing space.

  As described above, according to the invention of claim 1, since the housing and the front holder are integrally formed via the hinge, the number of moldings can be reduced. Can be planned. Further, when assembling the connector, it is not necessary to manage the two parts of the housing and the front holder as in the prior art, and the assemblability can be improved.

  According to the invention of claim 2, the front holder is connected to the housing by a different number of hinges according to the number of terminals accommodated in the same shape, so that the extra length of the hinge is connected to the counterpart housing. By using it as a coding out to the fitting surface side (front side of the front holder), it is possible to prevent erroneous fitting of the same type connector.

  According to the invention of claim 3, the hinge housing space is formed in the mating housing, and the hinges having different numbers for connecting the housing and the front holder are provided in the hinge housing space of the mating mating housing to which the housing is fitted. Since the housing in which the front holder is integrally formed protrudes from the mating housing when fitting different male and female connectors, the erroneous fitting can be easily recognized visually. .

It is a perspective view before fitting with the male connector of the embodiment of the present invention and the female connector before assembling the front holder. It is a perspective view which shows the principal part before fitting with the female connector before attaching the said male connector and a front holder in a cross section. It is sectional drawing before fitting with the female connector before attaching the said male connector and a front holder. It is sectional drawing before the fitting of the said male connector and a female connector. It is a perspective view of the female connector. It is sectional drawing which shows the fitting state of the said male connector and a female connector. It is sectional drawing at the time of incorrect fitting of the said female connector. It is a perspective view of the other form of the said female connector. It is a perspective view of another form of the female connector. (A) is a perspective view of a conventional connector, (b) is a front view of the connector, and (c) is a sectional view of the connector. It is a disassembled perspective view of the said conventional connector.

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

  FIG. 1 is a perspective view before fitting a male connector and a female connector before assembling a front holder according to an embodiment of the present invention, and FIG. 2 is fitting between the same male connector and a female connector before assembling the front holder. FIG. 3 is a sectional view before fitting the same male connector and the female connector before assembling the front holder, and FIG. 4 is before fitting the same male connector and the female connector. FIG. 5 is a perspective view of the female connector, FIG. 6 is a cross-sectional view showing a fitting state between the male connector and the female connector, and FIG. 7 is a cross-sectional view when the female connector is erroneously fitted.

  As shown in FIG. 1 to FIG. 4, the connector 10 includes a male connector (mating connector) 20 and a female connector (connector) 30 that can be freely fitted into and removed from the male connector 20. Has been.

  As shown in FIGS. 2 to 4, the male connector 20 includes a male housing 21 (a mating housing) 21 made of synthetic resin and a plurality of (for example, a plurality of) protruding into the rectangular tubular hood portion 22 of the male housing 21 (for example, And two tabular male terminals 23 on the upper and lower sides. A predetermined number (the same number as the number of hinges) of hinge accommodating spaces 24 in which hinges 42 to be described later are accommodated are formed below the inner surface 22a at the back of the hood portion 22 of the male housing 21.

  As shown in FIGS. 1 to 5, the female connector 30 is detachably fitted in the hood portion 22 of the male housing 21, and a plurality of terminal housing chambers (for example, two at the top and five at the left and right) are provided therein. A female housing (housing) 31 made of synthetic resin in which 32 is formed, and a front holder 40 made of synthetic resin for restricting the forward withdrawal of the female terminals (terminals) 50 accommodated in the plurality of terminal accommodating chambers 32; It has.

  2 and 3, the terminal housing chamber 32 of the female housing 31 is a rectangular parallelepiped along the longitudinal direction so as to penetrate from the front side (fitting surface side of the male housing 21) of the female housing 31 to the rear side. An engagement stage which is formed in a hole shape and is engaged with a shoulder (terminal engagement portion) 51a of a box-shaped electrical contact portion 51 for connecting a male terminal of the female terminal 50 to the front side of the center of the ceiling surface. The part 34 is integrally formed.

  Further, as shown in FIGS. 3 and 4, the electric wire 60 is inserted through the electric wire insertion port 33 on the rear side of the terminal accommodating chamber 32 of the female housing 31, penetrates through the terminal accommodating chamber 32, and is exposed to the outside. After crimping and connecting the core wire crimping portion 52 of the female terminal 50 to the core wire 62 of the terminal 61 of the electric wire 60, the female terminal 50 is accommodated in the terminal accommodating chamber 32 of the female housing 31 by pulling the electric wire 60. Then, the shoulder 51 a of the electrical contact portion 51 of the female terminal 50 is engaged with the engaging step 34 of the female housing 31, and the front holder 40 is mounted on the front side of the female housing 31. Accordingly, the female terminal 50 is held in the terminal accommodating chamber 32 of the female housing 31 by the engagement step portion 34 and the front holder 40 so that the front holder 40 restricts the front extraction of the female terminal 50. It has become. Note that reference numeral 53 in FIG. 3 denotes a wire covering crimping portion of the female terminal 50.

  As shown in FIGS. 1 to 5, the female housing 31 and the front holder 40 are integrally formed via a pair of hinges 42 and 42. That is, the female housing 31 and the front holder 40 are integrally formed by a pair of hinges 42 and 42 by synthetic resin molding.

  The front holder 40 has a rectangular box-shaped holder body 41. Both sides of the upper edge portion of the holder body 41 and the female housing 31 are integrally formed via a pair of hinges 42 and 42. The holder main body 41 is formed with a plurality of terminal insertion holes 43 (for example, two on the top and five on the left and right) through which the male terminals 23 are inserted. Further, on both sides of the holder main body 41, a pair of engaging portions 44, 44 that are engaged with engaged portions 35, 35 formed on both side surfaces of the female housing 31 are integrally formed.

  3 and 4, the holder main body 41 of the front holder 40 is rotated about a pair of hinges 42, 42 so that the engaged portion 35 of the female housing 31 and the engaging portion of the holder main body 41 are engaged. 44 is engaged, and the front holder 40 is mounted on the front side of the female housing 31. At this time, as shown in FIGS. 4 and 5, the pair of hinges 42, 42 protrude outward from the front surface 41 a of the holder main body 41 of the front holder 40. As shown in FIG. 6, when the female housing 31 is completely fitted into the hood portion 22 of the male housing 21, the holder main body 41 of the front holder 40 is placed on the inner surface 22 a at the back of the hood portion 22 of the male housing 21. The pair of hinges 42, 42 projecting from the front surface 41 a of the holder body 41 are in contact with the pair of hinge housing spaces 24, 24 formed on the inner surface 22 a of the back of the hood portion 22 of the male housing 21. It is to be accommodated.

  Further, in the female housing 31, the front holder 40 is connected to the female housing 31 by different numbers of hinges 42 and 42 'according to the number of female terminals 50 accommodated in the same shape. That is, in the female connector 30A shown in FIG. 8, the center of the female housing 31 is connected to the front holder 40 by one hinge 42. Further, in the female connector 30B shown in FIG. These three hinges 42 'are connected to the front holder 40. The hinge 42 ′ is formed narrower than the hinge 42.

  As shown in FIGS. 8 and 9, the number of hinges 42, 42 'may be one or three, and the hinge accommodating space 24 of the male connector 20 corresponds to the number of hinges. For example, when ten terminals 50 with wires are required, a female connector 30A shown in FIG. 8 having one hinge 42 and a male connector having a hinge accommodating space of the number and size suitable for the female connector 30A are used. When eight terminals 50 with electric wires are required, the female connector 30 shown in FIG. 5 having two hinges 42 and 42 and the male connector 20 having the hinge accommodating space 24 of the number and size suitable for the female connector 30 are used. Further, when six terminals 50 with wires are required, the female connector 30B shown in FIG. 9 having three hinges 42 ', 42', and 42 'and the number and size of the hinge accommodating space 24 corresponding thereto are provided. Use the male connector. As a result, as shown in FIG. 6, the hinges 42 and 42 'having different numbers are accommodated only in the hinge accommodating space 24 formed in the adapted male housing 21 into which the female housing 31 is fitted. 7 cannot be inserted into the hinge accommodating space 24 like the male housing 21 'which is not compatible as shown in FIG. 7, so that erroneous male / female connector misfit can be easily and reliably prevented. It is like that.

  According to the female connector 10 of the above embodiment, as shown in FIGS. 1 and 5, the female housing 31 and the front holder 40 of the female connector 30 are integrally formed through a pair of hinges 42, 42 by molding of synthetic resin. By integrating them, the number of times of molding the synthetic resin can be reduced, so that the cost can be reduced accordingly.

  1 to 4, when the female connector 30 is assembled, the female housing 31 and the front holder 40 are integrally formed through a hinge 42. There is no need for management, and parts molding and management are not complicated, and as a result, the assembling property can be improved.

  Further, as shown in FIGS. 5, 8, and 9, the female housing 31 is attached to the female housing 31 by the hinges 42 and 42 ′ having different numbers of front holders 40 according to the number of female terminals 50 accommodated in the same shape. By being connected, the extra length of the hinges 42 and 42 ′ is projected to the front surface 41 a side of the front holder 40 and used as a coding, thereby preventing erroneous fitting of the same type connectors.

  That is, the hinge housing space 24 in which the hinges 42 and 42 ′ are accommodated is formed in the male housing 21 as the counterpart housing, and the hinges 42 and 42 ′ having different numbers of connecting the female housing 31 and the front holder 40 are female By housing only in the hinge housing space 24 of the mating mating male housing 21 to which the housing 31 is fitted, the hood portion 22 of the male housing 21 'is shown in FIG. Since the female housing 31 in which the front holder 40 is integrally formed protrudes from the tip of the hood portion 22 by a gap T between the tip of the hood portion 22 and the bridge portion 36 of the female housing 31, the erroneous fitting can be easily and reliably visually observed. Can be recognized.

  According to the embodiment, the female terminal is accommodated in the female housing and the male terminal is accommodated in the male housing. However, when the male terminal is accommodated in the female housing and the female terminal is accommodated in the male housing, the front holder Thus, the male terminal may be prevented from coming out forward.

10 Connector 21 Male housing (mating housing)
24 Hinge receiving space 30 Female connector (connector)
31 Female housing (housing)
32 Terminal receiving chamber 40 Front holder 42, 42 'Hinge 50 Female terminal (terminal)
60 wire 61 terminal

Claims (3)

A terminal housing chamber of the housing, the housing comprising: a housing that is detachably fitted to the counterpart housing and having a plurality of terminal housing chambers formed therein; and a front holder that restricts withdrawal of the terminals housed in the terminal housing chambers. After connecting the terminal to the end of the electric wire that is exposed to the outside by inserting the electric wire into the connector, the connector is accommodated in the terminal accommodating chamber of the housing by pulling the electric wire,
The connector, wherein the housing and the front holder are integrally formed via a hinge. The connector according to claim 1,
The connector is characterized in that the front holder is connected to the housing by a different number of hinges according to the number of terminals accommodated in the same shape. The connector according to claim 2,
A hinge housing space is formed in the counterpart housing,
The hinges having different numbers are accommodated only in the hinge accommodating space of the mating housing to which the housing is fitted.

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