JP6106379B2 - connector - Google Patents

Description

  The present invention relates to a connector.

  A connector for holding and fixing a terminal by providing a flexible lance in the terminal housing chamber inside the connector housing and engaging a beak formed in the lance with a locking hole of the terminal housed in the terminal housing chamber. Is known (for example, see Patent Document 1).

JP2012-84404

  First, a conventional connector of this type will be described with reference to FIGS.

  As shown in FIGS. 13 and 14, the connector 101 includes a connector housing 110, a terminal 150 attached to the tip of the electric wire W, a front holder 170 attached to the inside of the connector housing 110 from the front, and a mating connector. And a waterproof plug 160 and a packing 165 are provided.

  The connector housing 110 is provided with an outer housing part 111 and an inner housing part 112 inside thereof. Inside the inner housing part 112, a terminal accommodating chamber 114 and a stopper 115 for positioning the terminal 150 in the forward direction. When the terminal 150 is inserted into the terminal accommodating chamber 114 from behind, the terminal 150 is pushed by the terminal 150 and is once bent and deformed outside the insertion path of the terminal 150 (lower side in FIG. 13). A flexible lance 120 is provided that returns from the bending deformation when inserted to the position to be positioned and positions and locks the terminal 150 backward.

  The lance 120 is extended from the inner peripheral wall of the inner housing portion 112, and is provided in a cantilever shape with the tip, which is a free end, facing forward. Three beaks 122 that are engaged with the locking holes 154 of the terminals 150 are formed side by side in the width direction on the wide surface near the tip that is the free end of the lance 20. As shown in FIG. 15, the lance 120 engages a beak 122 with a locking hole 154 formed in the box portion 151, and positions and locks the terminal 150 inserted into the terminal accommodating chamber 114 backward.

  As shown in FIG. 16, the terminal 150 has a flat rectangular tube-like box portion 151 into which a male tab terminal (mating terminal, not shown) of the mating connector is inserted at the front portion, and the electric wire W at the rear portion. And a locking hole 154 that engages with the three beaks 122 of the lance 120 in the width direction on the wide peripheral wall constituting the box portion 151. Three are formed side by side. Inside the box portion 151, there are provided an insertion space 140 that receives the male tab terminal, and a spring piece 153 that elastically holds the male tab terminal that has entered the insertion space 140 between the inner wall of the box portion 151.

  As shown in FIG. 17, the front holder 170 is configured to be able to be pushed into the inner housing portion 112 of the connector housing 110 from the front temporary locking position to the rear final locking position.

  The lance 120 is configured such that when the front holder 170 is in the temporary locking position, the terminal 150 inserted from the rear of the connector housing 110 can be retained and locked by being bent and deformed toward the bending space 128. .

  The front holder 170 is provided with a cylindrical wall 171 that is fitted to the outer peripheral portion of the front end of the inner housing portion 112. As shown in FIG. When the front holder 170 is pushed from the temporary locking position to the final locking position in a state in which the locking of the lance 120 is prevented from coming off, the front holder 170 enters the bending space 128 of the lance 120 and the bending of the lance 120 is prohibited. A lance pressing portion 178 for double locking is provided. The front holder 170 has a shape penetrating in the front-rear direction. As shown in FIG. 18, the unlocking jig 200 is inserted from the front of the front holder 170 and the front end of the unlocking jig 200 is inserted. By pressing the pressing portion 121 formed on the lance 120, the lance 120 is forcibly bent to the unlocking side.

  However, at the time of releasing the lock, in the conventional connector 101, depending on the position where the lock releasing jig 200 is inserted into the front holder 170, as shown in FIG. Presses the position shifted from the center in the width direction of the pressing portion 121 toward the end portion, and the lance 120 may be twisted as shown in FIG. Since the lance 120 is twisted and deformed in this manner, there is a possibility that the locking of the terminal 150 by the lance 120 cannot be released even if the locking release jig 200 is inserted into the front holder 170. In addition, the lance 120 may be damaged or plastically deformed.

  This invention is made | formed in view of the situation mentioned above, The objective is to provide the connector which can suppress the twist deformation | transformation of a lance.

In order to achieve the above-described object, the connector according to the present invention is characterized by the following (1) to (4).
(1) a cylindrical terminal that is electrically connected to the counterpart terminal;
A connector housing having a terminal accommodating chamber into which the terminal is inserted from the rear, and a flexible lance that prevents the terminal inserted into the terminal accommodating chamber from coming off;
With
The wall surface of the terminal, restricting portions of a pair facing each other in the width direction of the terminals are projected toward the outside of the terminal,
The lance has a wide shape corresponding to the width dimension of the cylindrical portion of the terminal,
The lance extends from a base end portion provided on an inner peripheral wall of the connector housing, and is provided in a cantilever shape with a front end that is a free end facing forward.
In the lance, a pair of slits extending in the front-rear direction from the base end portion forward is formed side by side in the width direction of the lance,
The front ends of the three portions of the lance separated in the width direction of the lance by the pair of slits are connected to each other by a wide connecting portion corresponding to the width dimension of the cylindrical portion,
The pair of restricting portions are respectively inserted into the pair of slits of the lance, and the width direction outer surface of the terminal in the pair of restricting portions is the width direction inner side of the lance that defines the pair of slits. Abut against a pair of facing walls,
about.
(2) A connector having the configuration of (1),
The restriction portion is formed by bending a part of the wall surface of the terminal toward the outside of the terminal.
about.
(3) A connector having the configuration of (1) or (2),
Beaks that engage with the locking portions of the terminals are respectively provided at three positions in the vicinity of the width direction central portion and the width direction both ends of the connection portion of the lance.
about.
(4) A connector having any one of the constitutions (1) to (3),
When the terminal is inserted in the terminal receiving chamber in the wrong direction, the restricting portion comes into contact with the contact portion of the terminal receiving chamber.
about.

In the connectors having the configurations of (1) and (3) , the restricting portion abuts on the lance in the width direction of the lance, so that torsional deformation of the lance is restricted. For this reason, even if the position shifted from the center in the width direction of the lance is pressed and the lance is torsionally deformed, the torsional deformation can be suppressed.
In addition, in the connector having the configuration of (1) and (3), when the terminal is prevented from being pulled out by the lance, the restricting portion is inserted into the slit for reducing the rigidity of the lance. Space saving and cost reduction can be achieved.
The connector of the above Paragraph (2), it is possible to form a regulating portion to the terminal by the plain manufacturing process of bending, it is easy to manufacture, Ru can suppress an increase in manufacturing cost.
In the connector having the above configuration (4), when the terminal is inserted into the terminal accommodating chamber in the wrong direction, the restricting portion abuts against the abutting portion of the terminal accommodating chamber, so that the erroneous insertion of the terminal can be suppressed. .

  The connector according to the present invention can provide a connector capable of suppressing the torsional deformation of the lance.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

FIG. 1 is an exploded perspective view showing the connector of the present embodiment. FIG. 2 is an external perspective view showing a state before the connector is mated with the mating connector. FIG. 3 is a longitudinal sectional view showing a state in which a terminal attached to the tip of the electric wire is about to be inserted into the terminal housing chamber of the connector housing. 4A is a longitudinal sectional view showing a state in the middle of inserting a terminal into the terminal accommodating chamber, and FIG. 4B is a longitudinal sectional view showing a state in which the terminal is inserted into the terminal accommodating chamber. FIG. 5 is a horizontal cross-sectional view showing a state in which a terminal is inserted into the terminal accommodating chamber, and is a horizontal cross-sectional view at a position corresponding to the line V-V in FIG. FIG. 6A is a horizontal sectional perspective view showing the configuration of the connector housing on the terminal housing chamber side, and FIG. 6B is a horizontal view showing the engagement state of the terminal and the lance when the terminal is inserted into the terminal housing chamber. It is sectional drawing. FIG. 7A is an external perspective view showing a terminal viewed from below, and FIG. 7B is a perspective view showing a spring piece. FIG. 8 is an explanatory view of the operation when the front holder is pushed from the temporary locking position to the final locking position. FIG. 8A is a state before the front holder is pushed from the temporary locking position to the final locking position. FIG. 8B is a longitudinal sectional view showing a state in which the front holder is pushed from the temporary locking position to the final locking position. FIG. 9 is an explanatory view of the operation when the front holder is pulled out from the final locking position to the temporary locking position in order to remove the inserted terminal, as opposed to the case shown in FIG. FIG. 9B is a longitudinal sectional view showing a state before the front holder is pulled out from the main locking position to the temporary locking position. FIG. 10 is an explanatory view of the operation when the terminal is pulled out with the front holder pulled out to the temporary locking position as shown in FIG. 9, and FIG. FIG. 10B is a longitudinal sectional view showing a state in which the terminal is pulled out from the terminal accommodating chamber. FIG. 11 is an explanatory diagram for explaining the relationship between the terminal and the lance in a state where the terminal is inserted into the terminal accommodating chamber, and is a cross-sectional view in a state where the terminal is inserted into the terminal accommodating chamber. FIG. 12 is an explanatory view for explaining the relationship between the terminal and the terminal accommodating chamber when the terminal is inserted into the terminal accommodating chamber in the upside down direction, and the cross section when the terminal is inserted into the terminal accommodating chamber in the upside down direction. FIG. FIG. 13 is a view showing a conventional connector, and is a longitudinal sectional view showing a state where a terminal attached to the tip of an electric wire is about to be inserted into a terminal accommodating chamber of the connector housing. FIG. 14A is a longitudinal sectional view showing a state in the middle of inserting a terminal into the terminal accommodating chamber, and FIG. 14B is a longitudinal sectional view showing a state in which the terminal is inserted into the terminal accommodating chamber. FIG. 15A is a perspective view showing the structure of the terminal housing chamber side in the connector housing in a horizontal cross section, and FIG. It is a top view shown with a cross section. FIG. 16 is an external perspective view showing a terminal, and FIG. 16B is a perspective view showing a spring piece. FIG. 17 is a diagram for explaining the operation when the front holder is pushed from the temporary locking position to the final locking position. FIG. 17A is a state before the front holder is pushed from the temporary locking position to the final locking position. FIG. 17B is a longitudinal sectional view showing a state in which the front holder is pushed from the temporary locking position to the final locking position. FIG. 18 is an explanatory view of the operation when the terminal is pulled out with the front holder in the temporary locking position. FIG. 18A shows the locking release side by inserting a locking release jig into the terminal accommodating chamber. FIG. 18B is a longitudinal sectional view showing a state in which the terminal is pulled out from the terminal accommodating chamber. FIG. 19 is an explanatory diagram viewed from the release operation side for explaining the torsional deformation of the lance at the time of releasing the lock. FIG. 19A is an explanatory view showing a state before the lock is released, and FIG. ) Is an explanatory view showing a state when the locking is released.

  Specific embodiments of the connector according to the present invention will be described below with reference to the drawings.

1 to 12 show a connector 1 according to an embodiment.
The connector 1 is a connector that is fitted to the mating connector 2, and as shown in FIGS. 1 and 2, the connector 1 is attached to the tip of the electric wire W and accommodated in the connector housing 10. A required number of metal terminals 50 to be held, a resin front holder 70 mounted from the front inside the connector housing 10, and a connector housing 10 are rotatably mounted so that both connectors 1 and 2 are fitted. When the connectors 1 and 2 are brought into the initial fitted state, the connectors 1 and 2 can be rotated from the temporary locking position to the final locking position by utilizing the principle of the lever. 2, and a waterproof plug 60 and a packing 65 are provided.

  The connector housing 10 is provided with an outer housing portion 11 having an opening 11a on the front surface and an inner housing portion 12 inside thereof. Between the outer housing portion 11 and the inner housing portion 12, both connectors 1 are provided. A hood portion fitting space 13 into which the hood portion 4 of the housing 3 of the mating connector 2 enters is secured when the two connectors 2 are fitted. The outer housing portion 11 and the inner housing portion 12 are integrally connected to each other at a position that does not interfere with components to be mounted later.

  As shown in FIG. 3, a plurality of terminal accommodating chambers 14 into which terminals 50 are inserted from the rear and the front ends of the terminals 50 inserted from the rear into the terminal accommodating chambers 14 abut each other inside the inner housing portion 12. The stopper 15 for positioning the terminal 50 in the forward direction, and when the terminal 50 is inserted into the terminal accommodating chamber 14 from behind, the terminal 50 is pushed to the outside of the insertion path of the terminal 50 (lower side in FIG. 3). A flexible lance 20 that once bends and deforms and returns from bending when the terminal 50 is inserted to a position positioned by the stopper 15, and the terminal 50 is positioned and locked backward to prevent it from coming off. Is provided.

  The lance 20 is extended from the inner peripheral wall of the inner housing portion 12, and is provided in a cantilever shape with the tip, which is a free end, facing forward. As shown in FIG. 6, the lance 20 is formed in a single wide plate shape corresponding to the width dimension of the box portion 51 of the terminal 50. A beak 22 that engages with the locking hole 54 of the terminal 50 is provided on the wide surface near the tip, which is the free end of the lance 20, so as to engage with the locking hole 54 of the terminal 50. In addition, a pair of beaks 23 and 23 are provided on the wide surface so as to be engaged with the engaging recesses 55 and 55 of the terminal 50 in the vicinity of both ends in the width direction.

  The lance 20 is formed with slits 24 for reducing the rigidity of the lance 20 along the front-rear direction. The slits 24 are formed in pairs in the width direction of the lance 20. The tips of the three portions separated in the width direction of the lance 20 by the pair of slits 24 are connected to each other by a connecting portion 25. Further, the positions of the beaks 23 arranged at both ends in the width direction of the lance 20 and the beaks 22 placed in the center in the width direction are shifted in the front-rear direction, and the front ends of the three beaks 22 and 23 are the locking holes 54 and the locking holes. The front hole edge of the recess 55 is engaged, and at least the side surfaces of the beaks 23 arranged at both ends in the width direction are engaged with the side hole edges of the locking recess 55. Further, the beaks 23 disposed at both ends in the width direction are formed longer in the front-rear direction than the beak 22 disposed in the center in the width direction.

  When the front holder 70 is in the temporary locking position, the lance 20 is pushed by the terminal 50 inserted from the rear of the connector housing 10 and is once bent and deformed toward the bending space 28 until the terminal 50 stops at the stopper 15. The terminal 50 can be prevented from coming off and locked by returning from the bending state when inserted.

  As shown in FIG. 7, the terminal 50 is a flat rectangular tube that receives and contacts the male tab terminal (a counterpart terminal, not shown) of the mating connector 2 from the front when entering the front portion. And a wire crimping portion 59 for caulking and fixing to the tip of the electric wire W at the rear. The box part 51 is formed by bending a single metal plate. A locking hole 54 that engages with the beak 22 of the lance 20 is provided at the center in the width direction of the wide peripheral wall constituting the box portion 51. A pair of locking recesses 55 and 55 that engage with the pair of beaks 23 and 23 of the lance 20 are provided at both ends in the width direction of the peripheral wall. The locking recess 55 is formed by bending bent pieces 58 a and 58 b formed by cutting out a part of the wall surface of the box portion 51 toward the inside of the box portion 51. Further, a pair of stabilizers (regulators) 52 are provided on the rear end side of the peripheral wall with respect to the locking hole 54 and the locking recess 55. The stabilizer 52 is formed by vertically bending a bent piece 58 c formed by cutting out a part of the wall surface of the box portion 51 toward the outside of the box portion 51. Inside the box portion 51, the insertion space 40 that receives the male tab terminal and the male tab terminal that has entered the insertion space 40 are elastically sandwiched between the inner wall of the box portion 51 to electrically connect the terminal 50 and the male tab terminal. And a spring piece 53 connected to the.

  The spring piece 53 is formed separately from the box portion 51, and as shown in FIG. 7, a contact portion 57 that elastically contacts the male tab terminal of the mating connector 2, and a locking piece that is formed integrally with the contact portion 57. Part 56. The spring piece 53 is engaged with the box portion 51 by the locking piece portion 56 being locked to the bent pieces 58a and 58b of the box portion 51 as shown in FIG. Further, as shown in FIG. 7, a part of the locking piece portion 56 is exposed from the locking recess 55 toward the outside of the box portion 51.

  In a state where the lance 20 prevents the terminal 50 inserted into the terminal accommodating chamber 14 from coming off, the beak 23 engaged with the locking recess 55 locks the locking piece 56 of the spring piece 53 with the lance 20. The locking piece 56 is sandwiched between the bent piece 58a by pressing in the direction. More specifically, the beak 23 presses and holds the portion exposed to the outside from the box portion 51 of the locking piece portion 56 between the bent piece 58a. For this reason, the vertical movement of the locking piece 56 is restricted. At this time, since the end face in the left-right direction of the locking piece 56 is in contact with the bent piece 58b, the movement of the spring piece 53 in the left-right direction is also restricted.

  Further, in a state where the lance 20 keeps the terminal 50 inserted in the terminal accommodating chamber 14 from coming off, the pair of stabilizers 52 are respectively inserted into the slits 24 of the lance 20 as shown in FIG. Further, as shown in FIG. 11, the pair of stabilizers 52 are in contact with the wall surface 20 a of the lance 20 defining the slit 24 in the width direction.

  A rubber waterproof plug 60 that seals a gap between the peripheral wall of the terminal accommodating chamber 14 and the outer periphery of the electric wire W is provided on the outer periphery of the electric wire W whose tip is fixed to the terminal 50, and the inner housing of the connector housing 10 is provided. A packing 65 is provided on the outer periphery of the portion 12 to seal the gap between the hood portion 4 of the mating connector 2 and the inner housing portion 12 when the connectors 1 and 2 are fitted together. The connector 1 is configured to be waterproof by the sealing action of the packing 65. As shown in FIG. 7, the waterproof plug 60 is caulked and fixed on the insulating coating of the electric wire W at the rear end of the terminal 50.

  As shown in FIG. 8, the front holder 70 can be pushed into the inner housing portion 12 of the connector housing 10 from the temporary locking position on the front side to the final locking position on the rear side.

  The front holder 70 is provided with a cylindrical wall 71 fitted to the outer peripheral portion of the front end of the inner housing portion 12, and a terminal 50 is provided on the bottom side of the cylindrical wall 71 as shown in FIG. When the front holder 70 is pushed from the temporary locking position to the final locking position in a state in which the lance 20 is prevented from coming off, the lance 20 enters the bending space 28 of the lance 20 to inhibit the lance 20 from being bent. A lance pressing portion 78 that double-locks 50 is provided. The front holder 70 is formed in a shape penetrating in the front-rear direction. As shown in FIG. 10, the unlocking jig 500 is inserted from the front of the front holder 70 to By pressing the pressing portion 21 formed on the lance 20 at the tip, the lance 20 is forcibly bent to the unlocking side.

  As shown in FIG. 1, the lever 80 includes a pair of side plates 81 and 82 that face each other in parallel, and a connection operation portion 83 that connects the pair of side plates 81 and 82. The lever 80 is mounted on the connector housing 10 so as to be horizontally rotatable in a state where both side plates 81 and 82 are disposed at positions where the inner housing portion 12 of the connector housing 10 is sandwiched from above and below. By rotating from the position, the connectors 1 and 2 that are initially fitted can be completely fitted.

Next, the assembly procedure and the disassembly procedure will be described.
The connector housing 10 is assembled with a front holder 70, a lever 80, and a packing 65 in advance, and the front holder 70 and the lever 80 are held at a temporary locking position. In this state, when the terminal 50 attached to the tip of the electric wire W is assembled to the connector housing 10, the terminal 50 is inserted into the terminal accommodating chamber 14 from the rear as shown in FIGS. When the terminal 50 is inserted, the waterproof plug 60 attached to the outer periphery of the electric wire W comes into close contact with the inner surface of the peripheral wall of the terminal accommodating chamber 14, and the gap between the peripheral wall of the terminal accommodating chamber 14 and the outer periphery of the electric wire W is sealed.

  At this time, when the terminal 50 is to be inserted upside down (that is, when the terminal 50 is to be inserted in the wrong direction), the stabilizer 52 of the terminal 50 is located on the rear side of the terminal accommodating chamber 14 as shown in FIG. The terminal 50 cannot be inserted into the terminal accommodating chamber 14 because it abuts against the edge portion (abutting portion) 10a. On the other hand, as shown in FIG. 3, when the terminal 50 is to be inserted in a normal insertion direction, the stabilizer 52 does not contact the terminal accommodating chamber 14, and the terminal 50 can be inserted into the terminal accommodating chamber 14. For this reason, generation | occurrence | production of the incorrect insertion which makes the insertion direction of the terminal 50 wrong can be suppressed.

  Further, when the terminal 50 is inserted, as shown in FIG. 4A, the lance 20 is once bent by the terminal 50 as indicated by an arrow X from the insertion path of the terminal 50. At this stage, since the front holder 70 is in the temporary locking position, the bending space 28 of the lance 20 is secured outside the lance 20. As shown in FIGS. 4 (b) and 6 (b), the inserted terminal 50 stops when the front end hits a stopper 15 provided at the front end of the terminal accommodating chamber 14, and at the same time, the lance 20 returns to its original position. Returning from the flexure, the three beaks 22 and 23 of the lance 20 engage with the locking hole 54 and the locking recess 55 of the terminal 50, respectively, whereby the terminal 50 is held in the locked state.

  Next, as shown in FIG. 8, by pushing the front holder 70 in the temporarily locked state, the front holder 70 is finally locked, and at the same time, the lance pressing portion 78 of the front holder 70 is bent in the bending space 28 of the lance 20. The lance 20 is held in a state where it cannot be bent. Thereby, the terminal 50 is fixed by double locking.

  When removing the terminal 50 from this state, as shown in FIG. 9, first, the front holder 70 is pulled back from the final locking position to the temporary locking position, so that the lance 20 can be bent. Next, as shown in FIG. 10, the front end of the unlocking jig 500 is inserted from the front of the front holder 70, the pressing portion 21 of the lance 20 is pressed with the front end of the unlocking jig 500, and the lance 20 is Force to bend outward. Then, the beaks 22 and 23 of the lance 20 are detached from the locking hole 54 and the locking recess 55 of the terminal 50, respectively, and the terminal 50 can be removed from the terminal accommodating chamber 14 by pulling the terminal 50 rearward in that state. it can.

  At this time, in the connector 1 according to the present embodiment, as shown in FIG. 11, the pair of stabilizers 52 are in contact with the wall surface 20 a of the lance 20 in the width direction. It is guided by 52. Even when the position of the pressing portion 21 of the lance 20 shifted from the center in the width direction is pressed when the lock is released, and the lance 20 is torsionally deformed due to the torsional moment acting on the lance 20, the torsional deformation is performed. Is regulated by the stabilizer 52. That is, even when a torsional moment is applied to the lance 20, the stabilizer 52 that is in contact with the lance 20 in the width direction acts as a receiving portion for the torsional moment, so that the torsional deformation of the lance 20 is suppressed. Further, although only the case of releasing the lock by the lance 20 has been described, when the terminal 50 is inserted into the terminal accommodating chamber 14, the lance 20 is bent and deformed, and when the terminal 50 is restored from the bending deformation, the terminal 50 is prevented from being detached. When stopping, the lance 20 is guided by the stabilizer 52.

  Below, the effect | action and effect of the connector 1 which concern on this embodiment are demonstrated.

The connector 1 according to the present embodiment is inserted into a cylindrical terminal 50 electrically connected to a male tab terminal (mating terminal), a terminal accommodating chamber 14 into which the terminal 50 is inserted, and the terminal accommodating chamber 14. The connector housing 10 has a flexible lance 20 that prevents the terminal 50 from coming off. A stabilizer 52 (regulator) that abuts the lance 20 that is torsionally deformed in the width direction protrudes from the wall of the terminal 50 toward the outside of the terminal 50.
As a result, the stabilizer 52 abuts in the width direction on the lance 20 that is torsionally deformed, so that the torsional deformation of the lance 20 is restricted. For this reason, even if the position shifted from the center in the width direction is pressed and the lance 20 tries to twist and deform, the twist deformation can be suppressed. The connector 1 according to the present embodiment is particularly useful when the lance 20 is formed wide as in the present embodiment and the lance 20 is likely to be twisted and deformed when the lock is released.

In the connector 1 according to this embodiment, the stabilizer 52 is formed by bending a part of the wall surface of the terminal 50 toward the outside of the terminal 50.
Thereby, since the stabilizer 52 can be formed in the terminal 50 by the simple manufacturing process called bending, manufacture is easy and it can suppress the increase in manufacturing cost.

Further, in the connector 1 according to the present embodiment, the lance 20 is formed with a slit 24 for reducing the rigidity of the lance 20 along the front-rear direction. When the lance 20 prevents the terminal 50 from coming off, the stabilizer 52 is slit. 24 is inserted.
Thereby, when the terminal 50 is prevented from being detached by the lance 20, the restricting portion is inserted into the slit 24 for reducing the rigidity of the lance 20, so that the connector 1 can be miniaturized, and space saving and cost reduction can be achieved. Can do. In addition, even when the rigidity of the lance 20 is reduced due to the formation of the slit 24 and torsional deformation easily occurs, the occurrence of the torsional deformation can be suppressed by the stabilizer 52 inserted through the slit 24.

In the connector 1 according to the present embodiment, when the terminal 50 is inserted in the terminal accommodating chamber 14 in the wrong direction, the stabilizer 52 is attached to the rear edge (contact portion) 10a on the terminal accommodating chamber 14. Abut.
Thereby, when the terminal 50 is inserted in the terminal accommodating chamber 14 in the wrong direction, the stabilizer 52 abuts on the edge portion 10a, so that the erroneous insertion of the terminal 50 can be suppressed.

  The technical scope of the present invention is not limited to the embodiment described above. The above-described embodiments can be accompanied by various modifications and improvements within the technical scope of the present invention.

  For example, in the connector 1 according to the present embodiment, the stabilizer 52 is formed by bending a bent piece 58c formed by cutting out a part of the wall surface of the box portion 51. However, according to other known methods. It does not matter as a structure to be formed. For example, the stabilizer 52 may be formed by casting or welding.

  Moreover, in the connector 1 which concerns on this embodiment, although the stabilizer 52 was set as the structure formed in a line along the width direction, it is good also as a structure in which the single stabilizer 52 is formed. Further, a configuration in which three or more stabilizers 52 are formed may be used.

  Further, in the connector 1 according to the present embodiment, the stabilizer 52 is inserted into the slit 24 and abuts against the wall surface 20a of the lance 20 that defines the slit 24. However, the stabilizer 52 is applied to the lance 20 that is torsionally deformed. Other configurations may be used as long as they are in contact with each other in the width direction. For example, the lance 20 and the stabilizer 52 are not in contact with each other before the lance 20 is torsionally deformed as in the connector 1 according to the present embodiment, but before the lance 20 is torsionally deformed, the lance 20 and the stabilizer 52 are not in contact with each other. However, when the lance 20 is twisted and deformed without contacting, the lance 20 and the stabilizer 52 may contact each other. Further, unlike the connector 1 according to the present embodiment, the stabilizer 52 is not provided at a position where it is inserted into the slit 24 when the terminal 50 is prevented from being detached by the lance 20. It may be configured to be provided at a position in contact with the outside of both side walls in the left-right direction.

1 Connector 2 Mating Connector 3 Housing 4 Hood Part 10 Connector Housing 10a Edge (Abutting Part)
DESCRIPTION OF SYMBOLS 11 Outer housing part 12 Inner housing part 14 Terminal accommodation chamber 20 Lance 20a Wall surface 22 Beak 23 Beak 24 Slit 40 Insertion space 50 Terminal 51 Box part 52 Stabilizer (regulation part)
53 Spring piece 54 Locking hole 55 Locking recessed part 56 Locking piece part 57 Contact part 58a Bending piece 58b Bending piece

Claims (4)

A cylindrical terminal that is electrically connected to the counterpart terminal;
A connector housing having a terminal accommodating chamber into which the terminal is inserted from the rear, and a flexible lance that prevents the terminal inserted into the terminal accommodating chamber from coming off;
With
The wall surface of the terminal, restricting portions of a pair facing each other in the width direction of the terminals are projected toward the outside of the terminal,
The lance has a wide shape corresponding to the width dimension of the cylindrical portion of the terminal,
The lance extends from a base end portion provided on an inner peripheral wall of the connector housing, and is provided in a cantilever shape with a front end that is a free end facing forward.
In the lance, a pair of slits extending in the front-rear direction from the base end portion forward is formed side by side in the width direction of the lance,
The front ends of the three portions of the lance separated in the width direction of the lance by the pair of slits are connected to each other by a wide connecting portion corresponding to the width dimension of the cylindrical portion,
The pair of restricting portions are respectively inserted into the pair of slits of the lance, and the width direction outer surface of the terminal in the pair of restricting portions is the width direction inner side of the lance that defines the pair of slits. Abut against a pair of facing walls,
A connector characterized by that. The restriction portion is formed by bending a part of the wall surface of the terminal toward the outside of the terminal.
The connector according to claim 1.   Beaks that engage with the locking portions of the terminals are respectively provided at three positions in the vicinity of the width direction central portion and the width direction both ends of the connection portion of the lance.
  The connector according to claim 1, wherein the connector is a connector. When the terminal is inserted in the terminal receiving chamber in the wrong direction, the restricting portion comes into contact with the contact portion of the terminal receiving chamber.
The connector according to any one of claims 1 to 3, wherein:

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