JP6865069B2 - connector - Google Patents

Description

The present invention relates to a connector provided with a front holder that restricts the terminal from coming out to the mating surface side of the mating connector.

Examples of this type of connector are shown in FIGS. 10 and 11 (see, for example, Patent Document 1).

As shown in FIGS. 10 (a), 10 (b), (c) and 11, the connector 1 has a terminal 8 to which the terminal of the electric wire 7 is connected and a cavity 3 into which the terminal 8 can be inserted from one direction. The housing 2 is formed so as to extend in the longitudinal direction, and the front holder 5 is detachably attached to the tip 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 a terminal 8 inserted from one direction to restrict movement in the other direction, and the terminal 8 has a step portion 4 and a step portion 4. 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 terminal of a connector on the other side (not shown) is inserted.

Japanese Unexamined Patent Publication No. 2012-69258 Japanese Unexamined Patent Publication No. 2001-155811

However, in the conventional connector 1, since it is necessary to separately mold the two parts of the housing 2 and the front holder 5, the number of parts is increased by that amount, and the cost is high. Further, it is necessary to manage and assemble the two parts of the housing 2 and the front holder 5, and the assembly property (assembly property) is poor.

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

The invention of claim 1 includes a housing that is removably fitted and detached from a mating housing and has a plurality of terminal accommodating chambers formed therein, and a front holder that restricts the terminals accommodated in the terminal accommodating chamber from coming out. After connecting the terminal to the terminal of the electric wire exposed to the outside by inserting the electric wire into the terminal accommodating chamber of the housing, the connector for accommodating the terminal in the terminal accommodating chamber of the housing by pulling the electric wire. The housing and the front holder are integrally formed via a hinge, and the housing is connected to the housing by a different number of the hinges depending on the number of terminals accommodated in the same shape. It is a feature.

The invention of claim 2 is the connector according to claim 1 , wherein a hinge accommodating space is formed in the mating housing, and hinges having different numbers of hinges are of the mating mating housing to which the housing is fitted. It is characterized in that it is accommodated only in the hinge accommodating 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, and the cost can be reduced accordingly. 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 conventional case, and the assembling property can be improved.

In particular, according to the first aspect of the present invention, in the housing, the front holder is connected to the housing by different numbers of hinges according to the number of terminals accommodated in the same shape, so that the extra length of the hinges is transferred to the mating housing. By putting it out on the mating surface side (front side of the front holder) and using it as a coding, it is possible to prevent misfitting of the same type connector.

According to the invention of claim 2 , a hinge accommodating space is formed in the mating housing, and hinges having different numbers of connecting the housing and the front holder are provided in the hinge accommodating space of the mating mating housing to which the housing is fitted. By accommodating only, when trying to fit different male and female connectors, the housing integrally formed with the front holder protrudes from the mating housing, so that misfitting can be easily recognized visually. ..

It is a perspective view of the male connector of the embodiment of the present invention and the female connector before assembling the front holder before fitting. It is a perspective view which shows the main part before fitting of the male connector and the female connector before assembling the front holder in the cross section. It is sectional drawing before fitting of the male connector and the female connector before assembling the front holder. It is sectional drawing before fitting of the male connector and a female connector. It is a perspective view of the said female connector. It is sectional drawing which shows the mating state of the male connector and a female connector. It is sectional drawing at the time of misfitting of the said female connector. It is a perspective view of another form of the said female connector. It is a perspective view of another form of the said female connector. (A) is a perspective view of a conventional connector, (b) is a front view of the connector, and (c) is a cross-sectional view of the connector. It is an exploded 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 the male connector of the embodiment of the present invention with the female connector before assembling the front holder, and FIG. 2 shows fitting of the male connector with the female connector before assembling the front holder. A perspective view showing the front main part in a cross section, 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 a sectional view before fitting the same male connector and the female connector. 5 is a perspective view of the female connector, FIG. 6 is a sectional view showing a mated state of the male connector and the female connector, and FIG. 7 is a cross-sectional view of the female connector when the female connector is misfitted.

As shown in FIGS. 1 to 4, the connector 10 is composed of a male connector (counterpart connector) 20 and a female connector (connector) 30 that can be freely fitted and detached (fitted and detached) from the male connector 20. Has been done.

As shown in FIGS. 2 to 4, a plurality of male connectors 20 (for example, a male housing (housing on the other side) 21 made of synthetic resin and a plurality of male connectors 20 projecting into the square tubular hood portion 22 of the male housing 21 (for example,). It is equipped with a tab-shaped male terminal 23 (two on the top and five on the left and right). A predetermined number (the same number as the number of hinges) of hinge accommodation spaces 24 for accommodating hinges 42, which will be described later, are formed on the lower side of 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 removably fitted and detached in the hood portion 22 of the male housing 21, and a plurality of terminal accommodating chambers (for example, two upper and lower and five left and right) are contained therein. A synthetic resin female housing (housing) 31 on which 32 is formed, and a synthetic resin front holder 40 that restricts the female terminals (terminals) 50 housed in the plurality of terminal accommodating chambers 32 from coming out forward. It has.

As shown in FIGS. 2 and 3, the terminal accommodating 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) to the rear surface side of the female housing 31. An engaging stage that is formed in a hole shape and is engaged with the shoulder portion (terminal engaging portion) 51a of the box-shaped electrical contact portion 51 for connecting the male terminal of the female terminal 50 on the front side of the center of the ceiling surface. The portion 34 is integrally projected.

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 and penetrated through the terminal accommodating chamber 32 to be 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 electric wire 60 is pulled to accommodate the female terminal 50 in the terminal accommodating chamber 32 of the female housing 31. Then, the shoulder portion 51a of the electrical contact portion 51 of the female terminal 50 and the engaging step portion 34 of the female housing 31 are engaged with each other, and the front holder 40 is mounted on the front side of the female housing 31. As a result, the female terminal 50 is held in the terminal accommodating chamber 32 of the female housing 31 by the engaging step portion 34 and the front holder 40, and the front holder 40 restricts the female terminal 50 from being pulled out forward. It has become. Reference numeral 53 in FIG. 3 indicates an electric wire coating 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, 42. That is, the female housing 31 and the front holder 40 are integrally molded by a pair of hinges 42 and 42 by molding a synthetic resin.

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, 42. Further, the holder body 41 is formed with a plurality of terminal insertion holes 43 through which the male terminals 23 are inserted (for example, two on the top and five on the left and right). Further, on both sides of the holder body 41, a pair of engaging portions 44, 44 that are engaged with the engaged portions 35, 35 formed on both side surfaces of the female housing 31 are integrally projected.

Then, as shown in FIGS. 3 and 4, the holder body 41 of the front holder 40 is rotated around the pair of hinges 42, 42, and the engaged portion 35 of the female housing 31 and the engaging portion of the holder body 41 are engaged. The front holder 40 is attached to the front side of the female housing 31 by engaging the 44. At this time, as shown in FIGS. 4 and 5, a pair of hinges 42, 42 project outward from the front surface 41a of the holder body 41 of the front holder 40. Further, 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 body 41 of the front holder 40 is placed on the inner surface 22a at the back of the hood portion 22 of the male housing 21. A pair of hinges 42, 42 projecting from the front surface 41a of the holder body 41 abut on the front surface 41a of the male housing 21 and a pair of hinge accommodating spaces 24, 24 formed on the inner surface 22a at the back of the hood portion 22 of the male housing 21. It is supposed to be housed.

Further, in the female housing 31, the front holder 40 is connected to the female housing 31 by a different number of hinges 42, 42'in accordance with the number of female terminals 50 accommodated in the same shape. That is, in the female connector 30A shown in FIG. 8, the female connector 30A is connected to the front holder 40 by one hinge 42 at the center of the female housing 31, and further, in the female connector 30B shown in FIG. 9, the center of the female connector 31 and its left and right sides thereof. It is connected to the front holder 40 by three hinges 42'. The hinge 42'is formed narrower than the hinge 42.

As shown in FIGS. 8 and 9, the number of hinges 42 and 42'may be one or three, and the hinge accommodation space 24 of the male connector 20 corresponds to the number of hinges. For example, when 10 terminals 50 with electric wires are required, a female connector 30A having one hinge 42 and a male connector having a number and size of hinge accommodating spaces corresponding to the female connector 30A are used, and also. If eight terminals 50 with electric wires are required, use the female connector 30 shown in FIG. 5 having two hinges 42 and 42 and the male connector 20 having a hinge accommodating space 24 having a number and size corresponding to the female connector 30. Further, when six terminals 50 with electric wires are required, there is a female connector 30B shown in FIG. 9 having three hinges 42', 42', and 42', and a hinge accommodating space 24 having a number and size corresponding to the female connector 30B. Use the male connector. As a result, as shown in FIG. 6, different numbers of hinges 42, 42'are accommodated only in the hinge accommodation space 24 formed in the fitted male housing 21 into which the female housing 31 is fitted, and the different male and female connectors. When trying to fit the hinge 42, the hinge 42 cannot be inserted into the hinge accommodating space 24 as in the non-conforming male housing 21'shown in FIG. 7, so that the wrong male-female connector can be easily and reliably prevented from being misfitted. It has become like.

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 molded via a pair of hinges 42 and 42 by molding a synthetic resin. By integrating them together, the number of times of molding the synthetic resin can be reduced, and the cost can be reduced accordingly.

Further, as shown in FIGS. 1 to 4, when assembling the female connector 30, since the female housing 31 and the front holder 40 are one component integrally molded via the hinge 42, two components are formed as in the conventional case. There is no need to manage, parts molding and management are not complicated, and assembling property can be improved accordingly.

Further, as shown in FIGS. 5, 8 and 9, the female housing 31 has different numbers of hinges 42, 42'in the front holder 40 depending on the number of female terminals 50 accommodated in the same shape. By being connected, the extra lengths of the hinges 42 and 42'are projected toward the front surface 41a of the front holder 40 and used as coding, so that misfitting of the same type connector can be prevented.

That is, the hinge accommodation space 24 in which the hinges 42, 42'are accommodated is formed in the male housing 21 as the mating housing, and the hinges 42, 42'in which the number of connecting the female housing 31 and the front holder 40 is different are female. By accommodating only in the hinge accommodating space 24 of the mating male housing 21 to which the housing 31 is fitted, the hood portion 22 of the male housing 21'is shown in FIG. 7 when the male and female connectors are misfitted. Since the female housing 31 in which the front holder 40 is integrally formed protrudes by the gap T between the tip of the hood portion 22 and the bridge portion 36 of the female housing 31, the misfitting is easily and surely performed visually. Can be recognized.

According to the above embodiment, the female terminal is housed in the female housing and the male terminal is housed in the male housing. However, when the male terminal is housed in the female housing and the female terminal is housed in the male housing, the front holder It is also possible to restrict the male terminal from coming out to the front.

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

Claims (2)

The housing is provided with a housing that is removably fitted and detached from the mating housing and has a plurality of terminal accommodating chambers formed therein, and a front holder that restricts the terminals accommodated in the terminal accommodating chamber from coming out. In a connector in which the terminal is connected to the terminal of the electric wire exposed to the outside by inserting the electric wire into the housing, and then the electric wire is pulled to accommodate the terminal in the terminal accommodating chamber of the housing.
The housing and the front holder are integrally formed via a hinge .
The housing is a connector characterized in that the front holder is connected to the housing by a different number of hinges depending on the number of terminals accommodated in the same shape. The connector according to claim 1.
A hinge accommodating space is formed in the mating housing.
A connector characterized in that the hinges of different numbers are accommodated only in the hinge accommodating space of the mating mating housing into which the housing is fitted.

Images