JP6087335B2 - connector - Google Patents

Description

  The present invention relates to a connector, a terminal used for the connector, and a housing that accommodates the terminal, and in particular, external connection of a plurality of terminals that are accommodated in a plurality of terminal accommodating chambers arranged in the housing and drawn out of the housing. The present invention relates to a device suitable for connecting an end to a plurality of connecting portions provided on an electrical component such as a wiring board.

  As this type of connector, for example, a connector mounted on a wiring board described in Patent Document 1 (hereinafter referred to as a board mounting connector) is known. According to Patent Document 1, the board mounting connector is formed by holding a plurality of terminals on a housing which is an insulator at a predetermined pitch. Each of the plurality of terminals includes a contact portion that is connected to an object to be connected, a terminal portion that has a soldering portion that is connected to the wiring board, and a press-fit portion that is press-fitted into the housing. As described above, according to the board mounting connector described in the literature 1, since the plurality of terminals are press-fitted and held in the housing, the terminal portions and contact portions of the plurality of terminals in the connector are prevented from shaking. Therefore, it is possible to prevent displacement of the connection portion with the connection object and the terminal portion soldered to the wiring board.

JP 2004-253184 A

  However, since the board mounting connector described in Patent Document 1 relates to a board mounting connector used when two wiring boards are connected to each other, the wiring board and another electrical device are connected via a pair of connectors. No consideration is given to problems caused by wobbling of connector terminals when detachably connecting. For example, a female connector connected to a wiring board may be fitted with a male connector connected to another electrical device and connected. In this case, in order to ensure the electrical connection reliability of these connectors, it is necessary to ensure the area of the contact portion between the male terminal and the female terminal. Therefore, the cross-sectional area and length of the terminal accommodating chamber that holds the female terminal are required. Moreover, since the clearance (gap) between the female terminal and the inner surface of the terminal accommodating chamber is necessary in consideration of the assembling property, there is a problem that the female terminal swings in the longitudinal direction in the terminal accommodating chamber.

  That is, when the female terminal swings in the terminal accommodating chamber, a plurality of external connection ends that are integrally formed with the female terminal and are drawn out from the housing in order to connect to an electrical component such as a wiring board also swing. Due to this deflection, the positions of the plurality of external connection ends of the connector are shifted from the positions of the holes (for example, through holes) of the plurality of connection portions provided on the wiring board. However, there is a problem that the assemblability deteriorates. Note that the same problem arises not only when the female connector is connected to the wiring board but also when the male connector is used. Moreover, it is not restricted to the connector used for a connection with a wiring board, It is the same also when connecting the some external connection end of a female connector or a male connector to the several terminal part provided in the electrical component of a connection object There is a problem.

An object of the present invention is to provide, not interfere with the operation of inserting the terminal into the terminal accommodating chamber, and without increasing the size as compared with conventional, the pin that will be housed in the connector housing of the external connection terminal An object of the present invention is to provide a connector having a structure that reduces the amount of deflection.

To solve the above problems, the present invention includes a housing terminal receiving chamber is formed with a front opening of the mating terminal is inserted, the terminal accommodating chamber is inserted from the rear opening of the terminal receiving chamber of the housing to yield and a volume is a cylindrical pin, the cylindrical pin via the front lead conductor formed from one end of the lower tubular wall distracted end in distracted strip conductor of the cylindrical terminal Symbol a connector comprising a external connection terminal led out from the rear side opening, the drawer guide body includes a protruding portion made by projects both sides of said strip conductor located within said housing, said Zhang A crank-shaped bent portion that positions a protruding portion below the lower cylindrical wall of the cylindrical terminal, and the housing includes both side edges of the rear opening side end surface of the lower wall of the terminal accommodating chamber. Project from the terminal housing chamber, A pair of protrusions are provided that project into the terminal accommodating chamber from the side walls of the terminal accommodating chamber continuous to both side edges of the end surface of the lower wall, and form a groove into which the protruding portion is inserted. Has a pair of prismatic protrusions formed vertically with the overhanging portion interposed therebetween, and the upper surface of the prismatic protrusions above the pair of prismatic protrusions is flush with the upper surface of the lower wall of the terminal accommodating chamber. The bent portion of the lead conductor is formed in a shape where the lead conductor on the cylindrical terminal side is located on the upper surface of the lower wall at a position where the protruding portion is inserted into the groove. It is characterized by.

According to the present invention, the terminal housing is protruded from the both side edges of the lower wall end surface of the terminal housing chamber into the terminal housing chamber or from the side wall of the terminal housing chamber connected to the both side edges of the lower wall end surface. Since the pair of protrusions that project into the room and form a groove into which the extension portion of the lead conductor is inserted are provided, the movement of the extension portion is restricted by the groove . Thereby, since the movement of the lead conductor in which the overhang | projection part was formed is also controlled, the movement of the external connection end of the some cylindrical terminal accommodated in the housing of the connector is also controlled. As a result, it is possible to reduce misalignment between the positions of a plurality of external connection ends of a connector used for connection to an electrical component such as a wiring board and the positions of a plurality of connection portions provided on the electrical component to be connected. Decrease in wearability can be improved .

In particular, since groove is formed by a pair of prismatic projection formed on the upper and lower sides of the projecting portion of the lead conductor, the projecting portion of the lead conductor is inserted into the groove, fascia pull out conductor shake in the vertical direction orthogonal is regulated under by the groove wall. Further, the movement of the protruding portion is restricted by the bottom surface of the groove with respect to the lateral deflection along the strip surface of the lead conductor. Thereby, the adjustment work of the positional shift of the plurality of external connection ends of the connector is further reduced with respect to the plurality of connection portions provided on the electrical component such as the wiring board, and the deterioration of the assembling property can be reduced.

Further, the lead conductor has a bent portion that positions the protruding portion below the lower cylindrical wall of the cylindrical terminal, the protruding portion is formed on the external connection end side of the bent portion, and the protruding portion is formed in the groove. At the inserted position, the lead conductor on the cylindrical terminal side is formed in a shape positioned on the upper surface of the lower wall of the terminal accommodating chamber, and the upper surface of the rectangular column projecting portion on the upper side of the pair of rectangular prism projecting portions is below the terminal accommodating chamber. Since it is formed flush with the upper surface of the wall, the cylindrical terminal and the lead conductor can be inserted into the terminal receiving chamber without any obstruction by sliding the upper surface of the prismatic protrusion and the upper surface of the lower wall of the housing. it can. That is, the prismatic protrusion that forms the groove into which the protruding portion of the lead conductor is inserted protrudes into the insertion path of the cylindrical terminal, and therefore does not hinder the operation of inserting the cylindrical terminal into the terminal accommodating chamber. In addition, the height direction of the terminal accommodating chamber is expanded according to the difference in the height of the crank-shaped bent part, but the external connection of the terminals accommodated in the connector housing without increasing the size to the left as compared with the conventional case. It is possible to provide a connector having a structure that reduces the amount of end deflection.

When the lead conductor is made straight without providing a crank-shaped bent portion, both sides of the terminal accommodating chamber are opposed to the upper surface of the rear opening side end of the lower wall of the terminal accommodating chamber. A prismatic protrusion projecting from each wall is provided, a groove is formed between the prismatic protrusion and the upper surface of the lower wall, and a gap between the distal ends of the pair of prismatic protrusions is formed. However, it is preferable that the distance between the ends of the prismatic protrusions protruding from both side walls is greater than the width of the lower cylindrical wall of the cylindrical terminal. As a result, the structure for reducing the amount of deflection of the external connection end of the terminal accommodated in the housing of the connector without obstructing the operation of inserting the cylindrical terminal into the terminal accommodating chamber and without increasing the size as compared with the conventional case. Connector can be provided.
Even when the crank-like bent portion is provided or not provided, it is preferable to form a shallow groove in which the lower portion of the lead conductor is embedded in the upper surface of the lower wall of the terminal accommodating chamber. This is preferable because an increase in the height of the terminal accommodating chamber can be suppressed.
Moreover, it is preferable to form the groove | channel which inserts an overhang | projection part as a press-fit groove which press-fits an overhang | projection part . According to this, the shake amount of the external connection end can be further suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the connector which can reduce the deflection amount of the external connection end of the some terminal accommodated in the housing of the connector can be provided.

It is the perspective appearance figure which decomposed | disassembled and showed the housing and female terminal of the connector of Embodiment 1 of this invention. It is a figure which shows the back opening surface of the housing which inserts the female terminal of FIG. It is a figure which shows the female terminal of Embodiment 1 of this invention, (a) is a perspective external view, (b) is a side view. It is the arrow line view seen from arrow IV-IV of FIG. It is sectional drawing of the state which accommodated the female terminal in the terminal storage chamber of the housing of FIG. FIG. 3 is an arrow view seen from the arrow VI-VI in FIG. 2. FIG. 7 is a perspective view of a portion corresponding to FIG. 6. It is an enlarged view of the site | part enclosed with the dashed-dotted line B of FIG. FIG. 6 is an enlarged view of a portion surrounded by an alternate long and short dash line A in FIG. 5. It is sectional drawing of the state which accommodated the female terminal in the terminal accommodating chamber of the housing of Embodiment 2 of this invention. It is the figure seen from the back opening side of the housing of Embodiment 2.

  Hereinafter, the connector of the present invention will be described based on the embodiment shown in FIGS.

  With reference to FIGS. 1-9, the connector of Embodiment 1 of this invention is demonstrated. The present embodiment is a so-called female connector used for connection to a wiring board (not shown). However, the connector 1 of the present invention is not limited to the one used for connection to the wiring board, and can be applied to a female or male connector used for connection to an electrical component having a plurality of connection portions.

(Embodiment 1)
FIG. 1 is an exploded perspective view of the connector 1 according to the first embodiment. The connector 1 includes a plurality of female terminals 3 and a resin housing 2 in which each female terminal 3 is accommodated. In the housing 2, a plurality of terminal accommodating chambers 5 each having a front opening 4 into which a mating terminal (not shown) is inserted are arranged via a partition wall. Each terminal accommodating chamber 5 is formed as a cylindrical cavity having a rectangular cross section. Each female terminal 3 is inserted from the rear opening 6 shown in FIG. 2 of the housing 2 and is accommodated in each terminal accommodating chamber 5. The plurality of female terminals 3 are formed in the same shape. That is, the female terminal 3 is formed to have a metal cylindrical terminal 7 having a rectangular cross section and a strip-shaped lead conductor 8 extending from one end of the cylindrical terminal 7. . The lead conductor 8 is formed to have an external connection end 9 that is drawn out from the rear opening of the housing 2 and connected to a connection portion of an electrical component such as a wiring board to be connected by solder or the like. In the housing 2 in which the plurality of female terminals 3 are accommodated, for example, external connection ends 9 are respectively inserted into holes of a plurality of connection portions provided in a wiring board to be connected, and support portions 2a and 2b provided at both ends. It is fixed to the wiring board by bolts or the like via

  Next, the detailed structure of the female terminal 3 is demonstrated with reference to Fig.3 (a), (b). The female terminal 3 is formed by cutting and bending a plate material necessary for forming the rectangular cylindrical terminal 7 and the lead conductor 8 from a metal strip. The cylindrical terminal 7 ensures the strength by bending the edge of the plate cut out from the band material and appropriately forming the overlapping portion 7b. Further, in the drawing, the lance 7a is formed by cutting and raising the upper surface of the cylindrical body, and is formed so as to be locked to an opening edge formed on the wall surface of the terminal accommodating chamber 5 described later and held in the housing 2.

  The lead conductor 8 of the female terminal 3 is provided extending from the rear end of the bottom (one side) of the rectangular cylindrical terminal 7, and an external connection end 9 is formed at the tip of the lead conductor 8. Further, a crank-shaped bent portion 10 is formed in the middle of the lead conductor 8 corresponding to the base end of the external connection end 9 so that the external connection end 9 is positioned at a position lower than the bottom of the cylindrical terminal 7 in the drawing. Has been. In particular, a pair of projecting portions (wing portions) 8 a and 8 b projecting from both side surfaces of the lead conductor 8 positioned at the lower end of the bent portion 10 are provided.

  Next, sectional views taken along arrows IV-IV in FIG. 2 are shown in FIGS. 4 and 5, and detailed configurations of the housing 2 and the terminal accommodating chamber 5 will be described. 4 and 5 show a cross-sectional view of one of the plurality of terminal accommodating chambers 5 arranged in the width direction of the housing 2 via a partition wall, and FIG. 5 shows the female terminal 3 as the terminal accommodating chamber 5. The state accommodated in is shown. As shown in the figure, the terminal accommodating chamber 5 faces the front opening 4 of the housing 2 and has a rectangular cross section and a length corresponding to the rectangular tubular terminal 7 of the female terminal 3. It is surrounded by two provided partition walls 2d, an upper wall 2e, and a lower wall 2f. The upper wall 2g of the terminal accommodating chamber 5 at a portion connected to the rear opening 6 of the housing 2 is formed by shifting the position upward in the drawing and expanding the vertical dimension.

  At the end of the lower wall 2f of the housing 2 on the rear opening 6 side, a shake restricting protrusion 11 according to the characteristic portion of the present embodiment is provided. As shown in FIG. 7, the deflection restricting protrusions 11 are protruded from both end surfaces in the width direction on the rear opening 6 side of the lower wall 2 f (in other words, the partition walls 2 d on both sides of the housing 2) and are formed vertically. Two pairs of prismatic projections 12a and 12b and prismatic projections 13a and 13b are formed. Grooves 14a and 14b are formed as gaps between the two pairs of prismatic protrusions 12a and 12b and 13a and 13b, respectively. The pair of grooves 14 a and 14 b are provided so that when the female terminal 3 is inserted into the terminal accommodating chamber 5, a pair of overhang portions (wing portions) 8 a and 8 b formed in the lead conductor 8 are inserted. It has been.

  In the present embodiment, the bottom surfaces of the grooves 14a and 14b correspond to the partition walls 2d. And the overhang | projection tip of a pair of overhang | projection part (blade part) 8a, 8b is set to the overhang | projection height which contact | abuts to the partition 2d corresponded to the groove bottom face of a pair of groove | channel 14a, 14b. The bottom surfaces of the pair of grooves 14a and 14b are not limited to the partition walls 2d. For example, by forming the prismatic protrusions 12a and 12b or the prismatic protrusions 13a and 13b integrally and reducing the depth of the pair of grooves 14a and 14b, it is possible to form a groove bottom having an arbitrary depth. Therefore, the depth of the pair of grooves 14a and 14b can be set in accordance with the protruding height of the pair of protruding portions (wing portions) 8b.

Next, an operation for assembling the female terminal 3 to the housing 2 of the present embodiment will be described. The cylindrical terminal 7 of the female terminal 3 shown in FIG. 3 is inserted from the rear opening 6 of the terminal accommodating chamber 5 shown in FIG. At this time, when the bottom surface of the cylindrical terminal 7 is inserted along the upper surface of the lower wall 2 f of the terminal accommodating chamber 5, the lance portion 7 a of the cylindrical terminal 7 is pushed down by the upper wall 2 e of the terminal accommodating chamber 5. Furthermore, as shown in FIG. 5, when the female terminal 3 is inserted at a position where the lance portion 7a reaches the opening 2h formed in the upper wall 2e, the pressing force of the lance portion 7a is released and enters the opening 2h. Thereby, the edge part of the lance part 7a engages with the opening edge 2i, and extraction of the female terminal 3 is controlled. At this time, as shown in the figure, the pair of projecting portions 8a and 8b of the lead conductor 8 are assembled in a state of being inserted into the pair of grooves 14a and 14b formed in the deflection regulating projection 11, respectively.

  In the assembled state of FIG. 5, since the protruding portions 8a and 8b of the lead conductor 8 are inserted into the pair of grooves 14a and 14b, the vibration shown in FIG. The movement of the overhanging portions 8a and 8b is restricted by the shake restricting protrusion 11. Further, the movement of the overhanging portion 8a is restricted by the groove bottom surfaces of the pair of grooves 14a and 14b formed in the shake restricting protrusion 11 with respect to the shake (left and right shake) indicated by the arrow 16 in FIG. . Thereby, the horizontal and vertical deflections of the lead conductor 8 are restricted, and the deflection of the external connection end 9 is also regulated. As a result, the adjustment work of the positional deviation of the plurality of external connection ends 9 of the connector 1 is reduced with respect to the plurality of connection portions provided in the electrical component such as the wiring board, and the deterioration of the assembling property can be reduced. .

(Embodiment 2)
10 and 11 show the configuration of the second embodiment according to the characterizing portion of the present invention. 10 is a cross-sectional view corresponding to FIG. 5 of the first embodiment, and FIG. 11 is a view seen from the rear opening side of the housing 2 of the second embodiment. The difference between the present embodiment and the first embodiment is that the lead conductor 8 is formed in a straight shape without forming the crank-shaped bent portion 10 in the lead conductor 8, and the configuration of the deflection regulating projection 21 is different. It is in. Since the other points are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

As shown in those figures, vibration regulating projections 21 of the present embodiment, the inner surface of a pair of prismatic protrusions 22a of the partition wall 2d of the housing 2 forming the terminal receiving chamber 5, is projected to b is provided, corner posts protrusion Grooves 23 a and b are formed between the lower surfaces of 22 a and b and the inner surface (upper surface) of the lower wall 2 f of the housing 2 that forms the terminal accommodating chamber 5. Similarly to the first embodiment, in this embodiment, the lower portion (for example, about half of the thickness) of the lead conductor 8 is a shallow groove 2j formed to extend to the inner surface (upper surface) of the lower wall 2f of the housing 2. Embedded in. Therefore, in this embodiment, the inner surface (upper surface) of the lower wall 2f is flush with the bottom surface of the shallow groove 2j from the position facing the pair of prismatic protrusions 22a, 22b to the rear opening 6 side. Further, the dimension between the ends of the pair of prismatic protrusions 22a and 22b is set larger than the width dimension of the lead conductor 8.

  With this configuration, when the female terminal 3 is assembled to the housing 2 of the present embodiment, the upper surface of the pair of prismatic protrusions 22a and 22b and the housing 2 from the rear opening 6 of the terminal accommodating chamber 5 shown in FIG. The cylindrical terminal 7 of the female terminal 3 is inserted into the terminal accommodating chamber 5 through the space between the widened upper wall 2g on the rear opening 6 side. If the portion of the cylindrical terminal 7 is inserted at a position where the pair of prismatic protrusions 22a and 22b is inserted, the lead conductor 8 has a width smaller than that between the ends of the pair of prismatic protrusions 22a and 22b. The entire conductor 8 is inserted to a predetermined position along the upper surface of the lower wall 2f of the housing 2. Thereby, a pair of overhang | projection parts 8a and b of the extraction conductor 8 are each inserted in a pair of groove | channels 23a and 23b. At this time, the tips of the pair of overhanging portions 8a, b are brought into contact with the inner surfaces of the partition walls 2d, which are the groove bottom surfaces of the pair of grooves 23a, b.

  As described above, according to the second embodiment, the shake restricting protrusion 21 restricts the left and right and vertical shakes of the lead conductor 8, and the shake of the external connection end 9 is also restricted. As a result, as in the first embodiment, the adjustment work of the positional deviation of the plurality of external connection ends 9 of the connector 1 is reduced with respect to the plurality of connection portions provided in the electrical component such as the wiring board, and the assembly property is improved. Reduction can be reduced.

  As mentioned above, although this invention was demonstrated based on Embodiment 1, 2, this invention is not limited to these, It is possible to implement in the form deform | transformed or changed in the range of the main point of this invention. It will be obvious to those skilled in the art, and it is obvious that such variations or modifications are within the scope of the claims of the present application.

  For example, in the first embodiment, a pair of overhanging portions 8a and 8b are formed on both side surfaces of the lead conductor 8, and a pair of grooves 14a and 14b are formed in the shake restricting protrusion 11 correspondingly. If one of the overhang portions 8a (or 8b) and the groove 14a (or 14b) are provided, the problems and effects of the present invention can be achieved. Similarly, also in Embodiment 2, if any one of the overhanging portions 8a (or 8b) and the grooves 23a (or 23b) are provided, the problems and effects of the present invention can be achieved.

  Further, in the second embodiment in which the lead conductor 8 is formed in a straight shape, when there is a possibility that the insertion of the female terminal 3 may be hindered by the deflection restricting projection 21, the distance between the pair of prismatic protrusions 22 a and 22 b is set to the female terminal 3. It should be larger than the width of the insertion path. Then, the dimension between the partition walls 2d of the rear opening 6 of the housing 2 may be increased by that amount, or the protrusion height of the pair of prismatic protrusions 22a and 22b may be reduced.

  In the second embodiment, a pair of grooves 23 a and 23 b are formed between the pair of prismatic protrusions 22 a and 22 b and the lower wall 2 f of the housing 2. However, when the lead conductor of the female terminal 3 is drawn from a position close to the upper wall 2g of the housing 2, a pair of grooves 23a and 23b are formed between the pair of prismatic protrusions 22a and 22b and the upper wall 2g of the housing 2. May be.

  Furthermore, the pair of grooves 14a and 14b of the first embodiment or the pair of grooves 23a and b of the second embodiment can be formed as press-fitting grooves for press-fitting the protruding portions 8a and 8b. According to this, it is possible to further suppress the shake of the external connection conductor.

  Moreover, although the female terminal 3 of this Embodiment 1 demonstrated the rectangular cylindrical cylindrical terminal 7 as an example. The present invention is not limited to this, and may be a round cylindrical cylindrical terminal formed by bending a metal strip. Furthermore, the terminal of the present invention is not limited to a female terminal, and may be a needle-shaped or rod-shaped male terminal. Even in the case of male terminals, the lead conductors that lead out the external connection ends from one end of each male terminal extend from the housing to the outside in order to connect to a plurality of connection portions provided on electrical components such as a wiring board. Provided. Also in this case, as in the present invention, a protruding portion is formed on a part of the lead conductor, and a gap for inserting the protruding portion is formed on the inner wall surface of the housing, thereby restricting the shake of the external connection end. be able to.

  Further, the present invention is not limited to the first and second embodiments, and a plurality of terminal accommodating chambers having a front opening into which a mating terminal is inserted are inserted from a rear opening of a housing arranged in a row through a partition, and the terminal A terminal housed in each of the housing chambers, and a lead conductor having an external connection end extending from one end of the terminal and drawn out from the rear opening, and a part of the side surface of the lead conductor 8 in the extending direction The structure of the terminal in which the overhang | projection part is formed is characterized.

  Further, the present invention is not limited to the first and second embodiments, and includes a front opening into which a mating terminal is inserted, a rear opening into which a terminal connected to the mating terminal is inserted, and terminals arranged in a row through a partition wall. Characterized in that the housing has a terminal receiving chamber, and a groove is formed in the inner wall surface connected to the rear opening, into which a protruding portion formed on the side surface of the lead conductor that leads the terminal to the outside is inserted. To do.

DESCRIPTION OF SYMBOLS 1 Connector 2 Housing 2d Bulkhead 3 Female terminal 4 Front opening 5 Terminal accommodation chamber 6 Rear opening 7 Cylindrical terminal 8 Lead-out conductor 8a, 8b Overhang part 9 External connection end 10 Bending part 11 Swing control protrusion 12a, b Square pillar protrusion 13a , B Square column projections 14a, 14b Groove 21 Runout control projections 22a, 22b Square column projections 23a, 23b Groove

Claims (4)

Has a housing terminal receiving chamber is formed with a front opening of the mating terminal is inserted, and the terminal receiving chamber of the inserted yield capacity in the terminal accommodating chamber by a cylindrical pin from the rear opening of the housing , the cylindrical pin will have an external connection terminal led from previous SL after lateral opening to the outside through one end lead conductor formed by distracted strip conductors from the lower tubular wall of the cylindrical pin In the connector,
The lead conductor includes a projecting portion formed by projecting both side surfaces of the strip-shaped conductor located in the housing, and a crank-shaped bend that positions the projecting portion below the lower cylindrical wall of the cylindrical terminal. And
In the housing, the terminal accommodating chamber is connected to both side edges of the end surface of the lower wall so as to protrude from both side edge portions of the end surface on the rear opening side of the lower wall of the terminal accommodating chamber into the terminal accommodating chamber. A pair of protrusions are provided that protrude from the side walls into the terminal accommodating chamber and form a groove into which the protruding portion is inserted,
The protrusion has a pair of prismatic protrusions formed vertically with the overhanging portion interposed therebetween, and the upper surface of the prismatic protrusion on the upper side of the pair of prismatic protrusions is the upper surface of the lower wall of the terminal accommodating chamber And is formed flush with
The bent portion of the lead conductor is formed in a shape in which the lead conductor on the cylindrical terminal side is located on the upper surface of the lower wall at a position where the protruding portion is inserted into the groove. Characteristic connector. The connector according to claim 1, wherein a shallow groove in which a lower portion of the lead conductor is embedded is formed on an upper surface of a lower wall of the terminal accommodating chamber. A housing in which a terminal housing chamber having a front opening into which a mating terminal is inserted is formed; and a cylindrical terminal that is inserted from a rear opening of the terminal housing chamber of the housing and is housed in the terminal housing chamber; In the connector, the cylindrical terminal has an external connection end that is led out from the rear opening through a lead conductor formed of a strip-shaped conductor extended from one end of the lower cylindrical wall of the cylindrical terminal.
The lead conductor is formed in a straight shape having projecting portions formed by projecting both side surfaces of the strip-shaped conductor located in the housing,
The housing is provided with prismatic protrusions that protrude from both side walls of the terminal accommodating chamber so as to face the upper surface of the end portion on the rear opening side of the lower wall of the terminal accommodating chamber, A groove is formed between the upper surface of the lower wall and the protruding portion is inserted,
The connector is characterized in that a separation dimension of a tip of the prismatic protrusion protruding from the both side walls is formed to be equal to or larger than a width dimension of a lower cylinder wall of the cylindrical terminal. The connector according to claim 3, wherein a shallow groove in which a lower portion of the lead conductor is embedded is formed on an upper surface of a lower wall of the terminal accommodating chamber.

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