JP2006294580A - Connector and connector holding structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector which certainly detects half-insertion state of a connector into a connector housing and prevents that the connector is laminated and combined to the connector housing in half-insertion state. <P>SOLUTION: The connector comprises connector housing locking means 15, 17 which are provided on one side and the other side at both sides 12a of a plurality of connector housings housing connectors 18 and combine by laminating the connector housings, and locking projections 30 which are provided at one of connector housings and detect half-insertion state of the connectors 18 by engaging with the connectors 18 housed in the other connector housings on which this is laminated. The engaging force of the both connector housing locking means 15 on one side of the connector housings is established to be smaller than the engaging force of the other side connector housing locking means 17. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a connector and a connector holding structure suitable for branch connection of a wire harness used for connection between various electrical components inside an automobile or the like.

  For example, as shown in FIGS. 42A, 42B, 43, 44, and 45, this type of connector 10 is connected to an electric wire (not shown) constituting a wire harness by crimping or the like. A plurality of terminal accommodating chambers 16 for accommodating the connected connection terminals 18 are provided, provided on the front and rear sides of the plurality of plastic connector housings 12 and on both sides of the connector housing 12, and at the engagement recesses 32 and the tips. Connector housing locking means 14 (see FIG. 44) for laminating and joining the connector housings 12 by engagement with the engaging projections 34 having the hooks (hooks) 37, and protruding from the lower part of the connector housing 12, The connector housing 12 is engaged with the engaging recess 18b of the connecting terminal 18 accommodated in the terminal accommodating chamber 16 of the other (lower) connector housing 12 on which the connector housing 12 is laminated. The Rukoto comprises strain relief of the connection terminals 18 and the locking projection 30 for detecting the half-inserted state (see FIG. 43). The engagement surface 37 a of the flange portion 37 in the engagement convex portion 34 is formed in a surface shape that is substantially perpendicular to the longitudinal axis of the engagement convex portion 34.

  Here, the shape of the engagement concave portion 32 and the engagement convex portion 34 of each connector housing locking means 14 is such that the connector housing locking means 14 in any of the front, rear, left, and right portions engage and hold the connector housings with the same engagement force. Each part is defined to have substantially the same shape.

  When assembling the connector 10, for example, the terminal 18 for connection connected to the electric wire is inserted and accommodated in the terminal accommodating chamber 16 of each connector housing 12.

  Next, the connector housing 12 in the second stage from the bottom in which the connection terminals 18 are accommodated is superposed on the lowermost connector housing 12 in which the connection terminals 18 are accommodated.

  Next, the second-stage connector housing 12 is pressed against the lowermost connector housing 12, and the engagement recesses 32 of the two connector housing locking means 14 provided on the front and rear side of the lowermost connector housing 12, The first and second connector housings 12 are engaged with the flanges 37 of the engaging projections 34 of the two connector housing locking means 14 provided on the front and rear side of the connector housing 12 and protrude from the second connector housing 12. The engaging protrusion 30 is inserted into the engaging recess 18b of the connecting terminal 18 accommodated in the terminal accommodating chamber 16 of the lowermost connector housing 12 and engaged therewith, and the connection accommodated in the lowermost connector housing 12 is engaged. The second-stage connector housing 12 is laminated and combined with the lowermost connector housing 12 while preventing the terminal 18 from being pulled out and detecting the half-inserted state.

  Next, the third-stage connector housing 12 is stacked on the second-stage connector housing 12 from the lower side where the connection terminals 18 are accommodated, and similarly, both connector housing locking means 14 provided on the front-rear side. The engaging recess 32 and the flange 37 of the engaging projection 34 are engaged with each other, and the locking projection 30 of the third-stage connector housing 12 is connected to the connection terminal 18 accommodated in the second-stage connector housing 12. The third-stage connector housing 12 is stacked on the second-stage connector housing 12 and combined. Thereafter, the same operation is repeated, and the connector housing 12 is performed, for example, by sequentially stacking and combining the upper and lower 10 stages as shown in FIG. 45 (see Patent Document 1).

  When the connector 10 is assembled, the connector housings 12 in which the connection terminals 18 are accommodated are not stacked and sequentially stacked, but each time the connector housings 12 are stacked, the connector housings 12 are stacked in the upper stage. Alternatively, the connection terminal 18 may be inserted and accommodated in the terminal accommodating chamber 16 of the connector housing 12, and such operations may be repeated to sequentially stack the connector housings 12 and combine them.

JP 2005-25997 A

  According to the conventional connector 10, when the connector housings 12 are stacked and stacked, the connection terminals 18 are not correctly inserted into the terminal housing chamber 16 of one connector housing 12 and are accommodated in a half-inserted state. In such a case, the engagement protrusion 18b of the other (upper) connector housing 12 stacked on the connector housing 12 is not inserted into the engagement recess 18b of the connection terminal 18 and is not engaged. . If it does so, the latching protrusion 30 will contact | abut the outer edge of the engagement recessed part 18b, the other connector housing 12 will float, and a clearance gap will arise between both the connector housings 12. FIG. As a result, it becomes difficult to engage the engaging recesses 32 and the engaging protrusions 34 of the front and rear connector housing locking means 14, so that the connection terminals 18 are accommodated in the terminal accommodating chamber 16 in a half-inserted state. Can be detected. The connector housing 12 in which the connection terminals 18 are accommodated in the half-inserted state in the terminal accommodating chamber 16 can be prevented from being stacked and combined.

  However, when the connection terminal 18 is accommodated in the terminal accommodating chamber 16 of one connector housing 12 in a half-inserted state, when the other connector housing 12 is stacked on the connector housing 12, the other connector housing 12 is pressed against one connector housing 12, the engaging protrusion 30 of the other connector housing 12 engages with the engaging recess of the connection terminal 18 accommodated in the terminal accommodating chamber 16 of the one connector housing 12 in a half-inserted state. Without engaging with 18b, it hits the outer edge of the engaging recess 18b, and a gap is formed between the two connector housings 12 near the connection terminal 18 accommodated in the half-inserted state, but the other connector housing 12 acts on this. Deflection (warp) by pressing force, both sides of both connector housings 12 approach or contact There is Rukoto.

  Then, the engagement recess 32 and the engagement projection 34 of the connector housing locking means 14 provided on the front rear side of the both sides of the connector housing 12 can be engaged. It becomes impossible for the locking projection 30 to detect that the connection terminal is accommodated in the chamber in a half-inserted state.

  As a result, the other connector housing 12 is stacked and united with one connector housing 12 in which the connection terminals 18 are accommodated in the terminal accommodating chamber 16 in a half-inserted state, and the finally formed connector 10 is obtained. It may cause poor electrical connection and reduce its quality and reliability.

  The present invention solves the above-described problem, reliably detects that the connection terminal is accommodated in the half-inserted state in the connector housing, and prevents the connection terminals from being stacked and united in the half-inserted connector housing. An object of the present invention is to provide a connector that can be used.

  In order to achieve the above object, an invention according to claim 1 of the present invention is provided on one side and the other side of a plurality of connector housings for accommodating connection terminals, and the connector housings are laminated. The connector housing locking means to be combined with the connection terminal housed in the other connector housing, which is projected from one connector housing and laminated with the other connector housing, makes the connection terminal half-inserted. In a connector having a locking protrusion to be detected, the engaging force of both connector housing locking means provided on one side of the connector housing is smaller than the engaging force of both connector housing locking means provided on the other side. It is characterized by being set to.

  Further, the invention described in claim 2 of the present invention is provided on the front and rear sides of the both sides of the plurality of connector housings for accommodating the connection terminals, and connector housing locking means for stacking and combining the connector housings, And a locking projection for detecting a half-inserted state of the connection terminal by engaging with the connection terminal housed in the other connector housing on which the connector housing is stacked. The connector housing locking means provided on the front side of the connector housing is set such that the engaging force of the connector housing locking means provided on the rear side is smaller than the engaging force of the connector housing locking means provided on the rear side. It is a feature.

  According to a third aspect of the present invention, in the connector according to the second aspect, the engagement surface of the flange portion of the engagement convex portion of both connector housing locking means provided on the front side is convex. The engagement surface of the flange portion of the engagement convex portion of both connector housing locking means formed on the rear side is formed in an arc surface shape or an inclined surface shape with an obtuse angle with respect to the longitudinal axis of the engagement convex portion, It is characterized by being formed in a plane substantially perpendicular to the longitudinal axis of the engaging convex portion.

  According to a fourth aspect of the present invention, in the connector according to the second or third aspect, the hook is engaged in the engaging convex portion of the two connector housing locking means provided on the front side. It is characterized in that the height is configured to be lower than the engagement height of the flange portion in the engagement convex portion of both connector housing locking means provided on the rear side.

The invention described in claim 5 of the present invention is the connector according to any one of claims 2 to 4,
The engaging force of both connector housing locking means provided on the front side of the connector housing is disengaged from both connector housing locking means provided on the front side when the connecting terminal is in a half-inserted state. In the state where the connection terminal is properly inserted, it is characterized in that it is regulated to such an extent that the engagement in both connector housing locking means provided on the front side is maintained.

  According to a sixth aspect of the present invention, the connection terminal is accommodated in a plurality of connector housings of the connector according to any one of the first to fifth aspects, and the connector Is a connector holding structure housed in a holder.

  According to the connector of the first aspect of the present invention, the engaging force of the two connector housing locking means provided on one side of the connector housing is smaller than the engaging force of the two connector housing locking means provided on the other side. It is set to be.

  Therefore, when the connection terminal is accommodated in one connector housing in a half-inserted state, the locking projection of the other connector housing stacked on the connector housing is accommodated in the one connector housing in a half-inserted state. While there is a gap between the connector housings near the connection terminals that are not engaged with the connection terminals and accommodated in the half-inserted state, the other connector housing bends due to the pressing force, and both sides of both connector housings approach or contact each other. By doing so, it becomes possible to engage the engaging concave portion and the engaging convex portion of the connector housing locking means provided on one side and the other side of the both sides of the connector housing.

  However, since a reaction force corresponding to a pressing force that bends the other connector housing acts on the engagement recesses and the engagement projections of these connector housing lock means, the engagement recesses in the other connector housing lock means on the other side The engaging force of the engaging projection has an engaging force necessary for stacking and joining the connector housings, and the engaging recesses and the engaging projections in the other connector housing locking means are maintained in the engaged state. On the other hand, the engagement between the engagement concave portion and the engagement convex portion in both the connector housing locking means on one side, in which the engagement force is set to be smaller than both the connector housing locking means on the other side, is opposite to the pressing force. Due to the force action, the connector housings cannot be stacked and united.

  Thereby, when the connection terminal is accommodated in the connector housing in a half-inserted state, both connector housing locking means on one side serve to detect the half-inserted state of the connection terminal. When the connector terminal is correctly inserted into the connector housing and properly accommodated, the reaction force due to the pressing force of the connector housing is small, so it engages with the engaging recesses on both connector housing locking means on one side. The protrusions are not disengaged, and the connector housings can be stacked and combined.

  Therefore, when the connection terminal is accommodated in the half-inserted state in the connector housing, it is reliably detected, and the connector housing accommodated in the half-inserted state is prevented from being stacked and united. The formed connector does not cause poor electrical connection, and the quality and reliability can be improved.

  Further, when the electric wire with the connector fixed is pulled in the direction of releasing the laminated state of the connector housings in the vicinity of the connector, the engagement force of the connector housing locking means on the other side is temporarily If it is set smaller than the engaging force of the means, the engagement between the two connector housing locking means on the other side is easily disengaged, and there is a concern that the laminated state of the connector housings cannot be maintained. On the other hand, in the present study, the engaging force of the two connector housing locking means on the other side is set to be larger than the engaging force of the two connector housing locking means on the one side. Since the mating is not easily removed, the stacked state of the connector housings can be maintained.

  Although the engaging force of both the connector housing locking means on one side can be reduced as much as possible, it is not preferable to eliminate both the connector housing locking means themselves on one side. This is because if the connector housing locking means on one side is lost, the connector assembly operator will not be motivated to engage the connector housing locking means on one side, so the gap between the connector housings will be large. There is a risk that half-insertion detection of the connection terminal is performed only by this, and the reliability of the half-insertion detection is lowered. On the other hand, in the case of the present invention, that is, when both the connector housing locking means on one side exist, the connector assembly operator tries to engage both the connector housing locking means on one side. Half-insertion detection of the connection terminal can be performed not only from the gap amount but also from the phenomenon that one of the connector housing locking means is disengaged, and the reliability of the half-insertion detection is increased.

  In the connector according to claim 2 of the present invention, the engaging force of the two connector housing locking means provided on the front side of the connector housing is greater than the engaging force of the two connector housing locking means provided on the rear side. Is set to be smaller.

  Therefore, when the connection terminal is accommodated in one connector housing in a half-inserted state, the locking projection of the other connector housing stacked on the connector housing is accommodated in the one connector housing in a half-inserted state. While there is a gap between the connector housings near the connection terminals that are not engaged with the connection terminals and accommodated in the half-inserted state, the other connector housing bends due to the pressing force, and both sides of both connector housings approach or contact each other. By doing so, it becomes possible to engage the engaging concave portion and the engaging convex portion of the connector housing locking means provided on the front rear side of the both side portions of the connector housing.

  However, since a reaction force corresponding to a pressing force that deflects the other connector housing acts on the engagement recesses and the engagement projections of these connector housing lock means, the engagement recesses in the rear connector housing lock means The engagement force of the engagement protrusions has the engagement force necessary to stack and unite the connector housings, and the engagement recesses and engagement protrusions in the rear connector housing locking means are maintained in the engaged state. On the other hand, the engagement between the engagement concave portion and the engagement convex portion in both the front connector housing lock means set to have a smaller engagement force than both the rear connector housing lock means is opposite to the pressing force. Due to the force action, the connector housings cannot be stacked and united.

  Thereby, when the connection terminal is accommodated in the connector housing in a half-inserted state, both connector housing locking means on the front side serve to detect the half-inserted state of the connection terminal. When the connector terminal is correctly inserted into the connector housing and properly accommodated, the reaction force due to the pressing force of the connector housing is small, so it engages with the engagement recesses on both front connector housing locking means. The protrusions are not disengaged, and the connector housings can be stacked and combined.

  Therefore, when the connection terminal is accommodated in the half-inserted state in the connector housing, it is reliably detected, and the connector housing accommodated in the half-inserted state is prevented from being stacked and united. The formed connector does not cause poor electrical connection, and the quality and reliability can be improved.

  In addition, when the electric wire with the connector fixed is pulled in the direction of releasing the stacked state of the connector housings in the vicinity of the connector, the engagement force of the two connector housing locking means on the rear side is temporarily changed to the two connector housing locks on the front side. If it is set to be smaller than the engaging force of the means, the engagement between the rear connector housing locking means is easily disengaged, and there is a concern that the laminated state of the connector housings cannot be maintained. On the other hand, in this study, the engagement force of the rear connector housing locking means is set to be larger than the engagement force of the front connector housing locking means. Since the mating is not easily removed, the stacked state of the connector housings can be maintained.

  The engaging force between the front connector housing lock means can be reduced as much as possible, but it is not preferable to eliminate the front connector housing lock means. This is because if the front connector housing locking means itself is lost, the connector assembly operator will not be motivated to engage the front connector housing locking means. There is a risk that half-insertion detection of the connection terminal is performed only by this, and the reliability of the half-insertion detection is lowered. On the other hand, in the case of the present invention, that is, when both front connector housing locking means are present, the connector assembly operator tries to engage both front connector housing locking means. Not only the gap amount but also the phenomenon that the front connector housing locking means are disengaged from each other makes it possible to detect the half insertion of the connection terminal, and the reliability of the half insertion detection is increased.

  Further, according to the connector of the present invention, the rear connector housing locking means has the same configuration as that used so far, and can save time and effort for a new design. The shape of the engaging projection in the connector housing locking means is simplified. Therefore, it is preferable because the connector housing locking means can be easily formed and the cost of the connector can be reduced.

  According to the connector described in claim 4 of the present invention, it is easy to set the engaging force of the front connector housing lock means smaller than the engaging force of the rear connector housing lock means. .

  According to the connector described in claim 5 of the present invention, the engaging force of the two connector housing locking means provided on the front side of the connector housing is such that when the connecting terminal is in the half-inserted state, Engagement in both connector housing locking means provided is disengaged, and when the connecting terminal is properly inserted, engagement in both connector housing locking means provided on the front side is maintained. Since it is prescribed | regulated, the case where the terminal for a connection is a half insertion state can be easily confirmed from the outside by removing both connector housing locking means.

  In the connector according to claim 6 of the present invention, the connection terminals are accommodated in the plurality of connector housings of the connector according to claims 1 to 5, and the connector is accommodated in the holder. Since the connector holding structure is configured as described above, it is possible to reliably prevent the connector in which the connection terminals are half inserted from being housed in the holder. In addition to this, the stacked state of the connectors can be more reliably maintained by inserting such connectors into the holder.

  Next, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code | symbol is attached | subjected to what has the same structure and function as the connector 10 described in background art. First, a connector 11 according to a first preferred embodiment of the present invention will be described with reference to FIGS.

  The connector 11 includes a plurality (10 in the illustrated example) of plastic connector housings 12 and a plastic connector housing in which the connector housings 12 are stacked in a plurality of stages (in the illustrated example, 10 stages). By engaging the locking means 15, 17 and the connecting terminal 18 that is provided in the terminal housing chamber 16 of the other (lower) connector housing 12 that protrudes from the connector housing 12 and is laminated. , And a locking protrusion 30 for preventing the connection terminal 18 from coming off and detecting the half-inserted state.

  The connector housing 12 has a plurality (10 in the illustrated example) of terminal housing chambers that accommodates a plurality (10 in the illustrated example) of female connection terminals 18 connected by crimping or the like to the electric wires constituting the wire harness or the like. 16 is provided side by side in a single layer. Further, the connector housing 12 is opened upward on the rear side of the terminal accommodating chamber 16, and as shown in FIG. 4, one wall on the front side of the terminal accommodating chamber 16, that is, the upper wall 16 a is, for example, A pair of slits 20 (see FIG. 3 (A)) formed in the longitudinal direction of the terminal accommodating chamber 16 is a doubly supported structure in which the base end is supported by the upper wall 16a, and is thickened on the back side. A locking claw 26 to be engaged with a portion 24 (see FIG. 3 to FIG. 5 etc.) and a tab-shaped locking receiving portion 18a (see FIG. 4) projecting from the inside of the distal end side of the connecting terminal 18 inside. A lance 22 made of an elastic locking piece made of plastic is provided.

  As shown in FIGS. 3B and 4, the other wall on the opposite side of the terminal accommodating chamber 16 corresponding to the position of the lance 22, that is, the lower wall 16 b, is connected to the terminals of the adjacent lower connector housing 12. When the connection terminal 18 is inserted into the storage chamber 16 (see FIG. 4), the latching claw 26 comes into contact with the latch receiving portion 18a of the connection terminal 18 and is slightly lifted upward. And a lance receiving portion 28 formed of a slit-like thin hole that allows the lance 22 to be displaced outward is provided. When the latch receiving portion 18a of the connection terminal 18 is engaged with the latch claw 26 of the lance 22, the built-up portion 24 of the lance 22 is lowered, the connection terminal 18 is engaged with the lance 22, and the terminal accommodating chamber. 16 is fixed so as not to come off.

  As shown in FIGS. 2 and 3B, for example, a rectangular locking protrusion 30 is formed on the lower portion (lower surface) of the lower wall 16 b located behind the lance 22 of the terminal housing chamber 16 in the connector housing 12. By projecting and being inserted into and engaged with an engaging recess 18b (see FIG. 4) of the connecting terminal 18 accommodated in the terminal accommodating chamber 16 of the lower connector housing 12 laminated with the connector housing 12. The connection terminal 18 can be prevented from coming off from the terminal accommodating chamber 16 (having a double locking function in combination with the prevention by the lance 22) and the half-inserted state can be detected. The engaging recess 18b uses the upper opening on the rear side (the insertion start side of the connection terminal 18) of the terminal accommodating chamber 16 shown in FIG. 3A, but accepts the insertion of the locking protrusion 30. The recess may have a size that can be accommodated, and may have a shape that matches the shape of the locking protrusion 30, and the upper opening on the rear side of the terminal accommodating chamber 16 may be eliminated. This is preferable because dust or the like can be prevented from entering the terminal accommodating chamber 16 from the rear side of the terminal accommodating chamber 16. Reference numeral 31 denotes a connection bar insertion hole into which a connection bar (male terminal) of a mating connector or the like (not shown) provided on the front wall 16c of the terminal accommodating chamber 16 is inserted.

  Both connector housing locking means 15 provided on the front side of the connector housing 12 (the insertion end side in the direction in which the connection terminal 18 is inserted) are shown in FIGS. 1 (B), 3 (A), 3 (B), As shown in FIG. 5 and FIG. 5, for example, an engagement recess 32 provided on the upper side and an engagement protrusion provided on the lower side corresponding to the engagement recess 32 provided on the front side of the both side portions 12 a of the connector housing 12. 33. The engagement recess 32 provided in one (lower) connector housing 12 is engaged with the engagement protrusion 33 provided in the other (upper) connector housing 12 stacked on the connector housing 12. Both connector housings 12 can be stacked and combined.

  Both connector housing locking means 17 provided on the rear side of the connector housing (the insertion start side in the direction in which the connection terminal 18 is inserted) are shown in FIGS. 1 (B), 3 (A), 3 (B) and FIG. As shown in FIG. 6, an engagement recess 32 provided on the rear side of each side portion 12a of the connector housing 12, for example, provided at the upper portion, and an engagement protrusion 34 provided at the lower portion corresponding thereto, for example. Consists of. The engagement recess 32 provided in one (lower) connector housing 12 and the engagement projection 34 provided in the other (upper) connector housing 12 stacked on the connector housing 12 are engaged. Both connector housings 12 can be stacked and combined.

  More specifically, as shown in FIG. 5, the engagement recess 32 in the connector housing locking means 15 is formed of, for example, a U-shaped recess opening in the lateral direction, and the engagement protrusion 33 is formed on both side portions 12a. An inward hook (hook) 35 that engages with the engaging recess 32 is provided at the tip of the linear locking piece that protrudes further downward. As shown in FIG. 6, the engagement recess 32 in the connector housing locking means 17 is a U-shaped recess groove that opens in the lateral direction, and the engagement protrusion 34 is a straight line projecting downward from both side portions 12a. An inward flange 37 that engages with the engagement recess 32 is provided at the tip of the locking piece.

  Further, the engaging force of the engaging concave portions 32 and the engaging convex portions 33 of the two connector housing locking means 15 provided on the front side is engaged with the engaging concave portions 32 of the two connector housing locking means 17 provided on the rear side. It is set to be smaller than the engaging force of the convex portion 34. That is, as shown in FIG. 7, the flange portion 35 of the engagement convex portion 33 of both connector housing locking means 15 has an engagement surface 35a that presses against the engagement concave portion 32 in a convex arc surface shape, and a flange portion. The engagement height H of the connector housing lock means 17 is formed so as to be lower than the engagement height h of the flange portion 37 of the engagement convex portion 34 of both the connector housing lock means 17, and is higher than the engagement force of both the connector housing lock means 17. It is set to be smaller.

  On the other hand, as shown in FIG. 8, the flange 37 of the engaging projection 34 of the two connector housing locking means 17 provided on the rear side has an engagement surface 37a with the longitudinal axis P of the engaging projection 34. The engagement height h of the flange portion 37 is formed so as to be firmly engaged with the U-shaped recess groove of the engagement recess 32, and is engaged with the engagement recess 32. The engaging force of the convex portion 34 is set to a size necessary for reliably holding the connector housing 32 stacked and united.

  Note that the flange 35 of the engagement projection 33 of the front connector housing locking means 15 has an engagement surface that presses against the engagement recess 32 instead of the convex arcuate engagement surface 35a. 9 (A), it is formed on the inclined engaging surface 35b of a substantially V-shaped projection having an obtuse angle θ with respect to the longitudinal axis P of the engaging convex portion 33, or FIG. As shown in B), it may be formed on a slide-type inclined engaging surface 35c having an obtuse angle θ with respect to the longitudinal axis P of the engaging convex portion 33 or the like. Further, the shape of the engagement recess 32 in both the connector housing locking means 15 is such that the engagement surface of the flange 35 of the engagement protrusion 33 is a convex arc surface instead of the U-shaped recess groove. In this case, when the engaging surface of the flange 35 is an inclined engaging surface 35b having a substantially V-shaped projection, the substantially V-shaped recessed groove corresponding to the concave arc surface-like groove corresponding to this Alternatively, in the case where the engagement surface of the flange portion 35 is a slide-type inclined engagement surface 35c, it may be formed in a triangular groove corresponding to this. When the shape of the engaging recess 32 is formed in a concave groove corresponding to the engaging surfaces 35a, 35b, 35c, etc. of the flange 35, the engaging recess 32 and the engaging convex portion in both connector housing locking means 15 are provided. Since it becomes easy to set the engagement force of 33 to a desired magnitude | size, it is preferable.

  Further, as shown in FIG. 1B and FIG. 3, the stacked connector housings 12 are arranged between the connector housing locking means 17 provided on the front and rear sides on both side portions 12a of the connector housing 12, for example. A rectangular guide groove 36 that restricts the relative movement of the guide groove 38 is provided. A rectangular plate-shaped guide rib 38 that fits into the guide groove 36 protrudes downward at the lower portion of the side portions 12a corresponding to the rectangular guide groove 36, for example. A guide rib 38 of the other (upper) connector housing 12 to be stacked is removably fitted in the guide groove 36 of one connector housing 12.

  The connector 11 of the present invention is configured as described above. When the connector 11 is assembled, for example, the connection terminal 18 connected to the electric wire W (see FIG. 2) is inserted and accommodated in the terminal accommodating chamber 16 of each connector housing 12.

  Next, the connector housing 12 in the second stage from the bottom in which the connection terminal 18 is accommodated is superimposed on the lowermost connector housing 12 in which the connection terminal 18 is accommodated, and the guide rib 38 is placed on the lowermost stage. It is inserted into the guide groove 36 of the connector housing 12 and positioned.

  Next, the second connector housing 12 is pressed against the lowermost connector housing 12, and the engagement recesses 32 of the two connector housing locking means 15, 17 provided on the front and rear side of the lowermost connector housing 12, The second stage (upper stage) of the connector housing 12 is engaged with the flanges 35, 37 of the engaging projections 33, 34 of the connector housing locking means 15, 17 provided on the front rear side. The locking projections 30 projecting from the connector housing 12 are inserted into the engaging recesses 18b of the connection terminals 18 accommodated in the terminal accommodating chambers 16 of the lowermost connector housing 12, and are engaged with each other. While preventing the connection terminal 18 accommodated in the connector housing 12 from coming off and detecting the half-inserted state, the second-stage connector housing 12 is attached to the lowermost connector housing 12. 12 by stacking coalesce.

  Next, the connector housing 12 of the third stage from the bottom where the connection terminals 18 are accommodated is positioned on the connector housing 12 of the second stage, and the connector housings provided on the front and rear sides are similarly positioned. The engaging recess 32 of the locking means 15, 17 is engaged with the flange 37 of the engaging protrusions 33, 34, and the locking protrusion 30 of the third-stage connector housing 12 is engaged with the second-stage connector housing 12. The third stage connector housing 12 is stacked on the second stage connector housing 12 and combined with the engagement recess 18 b of the received connection terminal 18. Thereafter, the same operation is repeated, and the connector housings 12 are sequentially laminated, for example, in 10 upper and lower stages, and are joined together on the uppermost connector housing 12 so as to have a rectangular plate-like cover that matches the size of the connector housing 12 Assembling is performed by mounting 40 to form the connector 11 (see FIGS. 1A, 1B, and 2).

  When assembling the connector 11, the connector housings 12 in which the connection terminals 18 are accommodated are not stacked and sequentially stacked, but each time the connector housings 12 are stacked, the connector housings 12 are stacked in the upper stage. Alternatively, the connection terminal 18 may be inserted and accommodated in the terminal accommodating chamber 16 of the connector housing 12, and such operations may be repeated to sequentially stack the connector housings 12 and combine them.

  In the process of assembling the connector 11, when the connector housings 12 are stacked and stacked, if the connection terminals 18 are correctly inserted into the connector housing 12 and are normally accommodated, the connector housing 12 is shown in FIG. As shown, the engagement concave portions and the engagement convex portions of the connector housing locking means 15 and 17 are engaged. On the other hand, when the connection terminal 18 is not properly inserted into the terminal housing chamber 16 of a certain connector housing 12 and is housed in a half-inserted state, the other connector housing adjacent to the connector housing 12 is used. 12 and the connector housing lock means 15 and 17 are stacked and united with each other, as shown in FIG. 10 (B), the engagement recesses 32 of both connector housing lock means 15 provided on the front side are engaged. The engagement with the mating convex portion 33 is released. Thereby, the half insertion state of the connection terminal 18 is detected. In this case, the assembly work is performed by repairing the connector housing 12 in which the connection terminal 18 is half inserted or by replacing the connector housing 12 with a normal connector housing 12.

  According to the connector 11 of the present invention, the engaging force of the two connector housing locking means 15 provided on the front side of the connector housing 12 is smaller than the engaging force of the two connector housing locking means 17 provided on the rear side. Is set to

  Therefore, when the connection terminal 18 is accommodated in one connector housing 12 in a half-inserted state, the locking projection 30 of the other connector housing 12 stacked on the connector housing 12 is half-mounted on the one connector housing 12. While it does not engage with the connecting terminal 18 accommodated in the inserted state and a gap is formed between the two connector housings 12 in the vicinity of the connecting terminal 18 accommodated in the half-inserted state, the other connector housing 12 bends due to the pressing force, When the both side portions 12a of both the connector housings 12 approach or come into contact, the engagement concave portions 32 and the engagement convex portions 33 of the connector housing locking means 15 and 17 provided on the front and rear sides of the both side portions 12a of the connector housing 12 34 can be engaged.

  However, a reaction force corresponding to a pressing force that deflects the other connector housing 12 acts on the engaging recess 32 and the engaging protrusions 33 and 34 of the connector housing locking means 15 and 17. The engagement force between the engagement recess 32 and the engagement protrusion 34 in the connector housing locking means 17 has a magnitude necessary for stacking and joining the connector housings 12. While the engagement state of the joint recess 32 and the engagement protrusion 34 is maintained, the front connector housing lock means 15 has a lower engagement force than the rear connector housing lock means 17. The engagement between the engagement concave portion 32 and the engagement convex portion 33 is released by the reaction force of the pressing force, and the connector housings 12 are laminated and united. It becomes impossible.

  Thereby, when the connection terminal 18 is accommodated in the connector housing 12 in a half-inserted state, the two connector housing locking means 15 on the front side serve to detect the half-inserted state of the connection terminal 18. When the connection terminal 18 is correctly inserted into the connector housing 12 and properly accommodated, the reaction force due to the pressing force of the connector housing 12 is small, so that the engagement in the front connector housing locking means 15 is achieved. The engagement between the concave portion 32 and the engaging convex portion 33 is not released, and the connector housing 12 can be stacked and united.

  Therefore, when the connecting terminal 18 is accommodated in the half-inserted state in the connector housing 12, it is reliably detected, and the connector housing 12 accommodated in the half-inserted state is stacked and united. Therefore, the formed connector 11 does not cause an electrical connection failure, and the quality and reliability can be improved.

  Further, even if the engaging force of the rear connector housing locking means 17 is set to be smaller than the engaging force of the front connector housing locking means 15, half insertion of the connecting terminal can be detected. Is pulled in the tearing direction to release the stacked state of the connector housings in the vicinity of the connection terminals 18, the engagement between the rear connector housing locking means 17 is easily disengaged, and the stacked connector housings 12 are stacked. There is a concern that the state cannot be maintained. On the other hand, in this embodiment, since the engaging force of both the connector housing locking means 17 on the rear side is set larger than the engaging force of both the connector housing locking means 15 on the front side, as shown in FIG. Since the rear connector housing lock means 17 cannot be easily disengaged, the stacked state of the connector housings 12 can be maintained.

  In addition, the engagement surface of the flange 35 in the engagement projection 33 of the front connector housing locking means 15 is blunt with respect to the engagement surface 35 a having a convex arc surface or the longitudinal axis P of the engagement projection 33. The engaging surfaces of the flanges 37 of the engaging protrusions 34 of the connector housing locking means 17 provided on the rear side are formed on the inclined engaging surfaces 35b and 35c having an angle θ. When formed in a planar engaging surface 37a substantially perpendicular to the longitudinal axis P, the rear connector housing lock means 17 has the same configuration as that used so far and is newly designed. In addition to saving time and effort, the shape of the engaging projection 33 in the front connector housing locking means 15 is simplified. Therefore, it is preferable because the connector housing locking means 15 and 17 can be easily formed and the cost of the connector 11 can be reduced.

  Further, the engagement height H of the flange portion 35 in the engagement convex portion 33 of both the connector housing lock means 15 on the front side is related to the engagement of the flange portion 37 in the engagement convex portion 34 of the both connector housing lock means 17 on the rear side. If it is configured to be lower than the total height h, it is easy to set the engaging force of the front connector housing lock means 15 smaller than the engaging force of the rear connector housing lock means 17. This is preferable.

  Next, another embodiment of the connector according to the present invention will be described. This embodiment relates to a LIF (Low Insertion Force) connector provided with a lever for low fitting. In such a LIF connector, a laminated connector having the same configuration as that of the above-described embodiment is fitted into a holder, and this holder is fitted into a male connector and can be low-fitted through a lever.

  Hereinafter, several types of LIF connectors will be described. In addition, about the structure equivalent to the above-mentioned embodiment, a corresponding code | symbol is attached | subjected and detailed description is abbreviate | omitted. First, as one of the connectors, a structure of a 2.3 terminal 6-pole connector 101 (see FIG. 14) shown in FIGS. 11 to 17 will be described.

  The 2.3 terminal 6-pole connector 101 (hereinafter referred to as “connector 101”) shown in FIG. 14 refers to a connector in which connector housings capable of receiving terminals having a side of 2.3 mm in parallel in 6 poles are stacked. ing. The connector 101 is made of a material having excellent moldability and strength such as PBT, for example, and includes a housing cover 140 shown in FIG. 11, a housing main body 110 shown in FIG. 12, and a lower end housing 150 shown in FIG. It is configured.

  As shown in FIG. 11A, the housing cover 140 has reinforcing ribs 141 formed in a lattice shape in a certain region on the upper surface thereof. As a result, the front-side engaging portion is disengaged in the same manner as in the above-described embodiment without covering the housing body 110 with the housing cover 140 being warped in the terminal half-inserted state.

  In addition, the housing cover 140 is formed asymmetrical to prevent the housing cover 140 from being covered on the housing body 110 in the reverse direction. Further, as shown in FIG. 11B, two engagement convex portions 143 and 144 are formed on the back surface of the housing cover 140 on both sides in the width direction. Then, as shown in FIG. 33, the front end (the side on which the connector 101 is inserted into the holder) has a flange 145 at the tip thereof formed in a semicircular shape, and the housing cover 140 is covered. The flange 145 is easily fitted in the engagement recess 131 of the housing main body 110, and is easily detached in the terminal half-inserted state. On the other hand, the rear engaging convex portion 144 is formed as a stepped hook-shaped flange portion 147 as in the above-described embodiment (see FIG. 8), and the hook portion 147 is once engaged with the mating engagement recess portion 132. It is designed not to be easily removed when combined. Further, locking projections 148 for preventing connection terminal removal are formed at a central portion of the housing cover 140 at predetermined intervals in the cover width direction (see FIG. 11B).

  As shown in FIG. 12A, the housing main body 110 has six terminal accommodating chambers 116 formed in parallel therein, and a terminal portion 117 for preventing terminal detachment corresponding to each terminal accommodating chamber 116 on the upper surface of the housing main body. Are formed in six places. Engaging recesses 131 and 132 that engage with the upper housing body 110 or the housing cover 140 to be stacked are formed in both sides of the housing body 110 in the front-rear direction.

  Further, as shown in FIG. 12B, locking projections 130 for preventing terminal disconnection are formed on the lower surface of the housing main body at predetermined intervals in the housing width direction. Further, on the front side of both side portions of the lower surface of the housing main body, there are engaging convex portions 133 (see FIG. 33) having a small engaging force similar to the engaging convex portions formed on the housing cover 140 of the first embodiment and the present embodiment. In addition to being formed, an engagement projection 134 having a large engagement force similar to the engagement projection formed on the housing cover 140 of the first embodiment and the present embodiment is also formed on the rear side.

  Unlike the first embodiment, the cross section of the engagement recess 131 on the front side of the housing body is formed in the engagement recess 131 having a semicircular cross section (see FIG. 33), and the engagement recess 132 on the rear side of the housing body. 8 is formed with a stepped portion as shown in FIG. 8 that firmly engages with the hook-like engaging projections 134 and 144 of the housing body 110 or the housing cover 140 to be laminated. As a result, if another housing body 110 is laminated on the upper surface or the housing cover 140 is put on the upper surface of the housing body 110 with the connection terminal 19 (see FIG. 17) half inserted, The locking projections 130 of the housing main body 110 and the locking projections 148 of the housing cover 140 do not enter the locking receiving portion 19a. As a result, the engaging portion on the front side of the housing main body is disengaged and the terminal half-inserted state is easy. Can be confirmed.

  Each terminal accommodating chamber 116 is formed with a lance 122 that engages with each connection terminal 19 (see FIG. 12B). Further, both sides of the housing main body 110 are formed asymmetrically to prevent the housing main body 110 from being reversely inserted into the holder.

  Next, the configuration of the 2.3 terminal 6-pole lower end housing 150 will be described. The configuration of the lower end housing 150 is basically the same as the configuration of the housing main body 110 described above, but as shown in FIG. 13B, as is clear from the fact that it is positioned at the lowermost side in the connector assembled state. The housing main body 110 described above is that the engaging protrusions are not formed on both sides of the lower surface of the lower end housing 150 and the protrusions for preventing terminal detachment are not formed at positions corresponding to the terminal receiving chambers 156. And the structure is different.

  That is, other configurations, specifically, the terminal accommodating chamber 156 in the housing, the lance 162 for holding the connection terminal 19, the window portion 157 on the upper surface of the housing, the engagement recesses 171 projecting in the front-rear direction on both sides of the housing. Reference numeral 172 denotes a structure similar to that of the housing main body 110.

  The lower end housing 150, the housing main body 110, and the housing cover 140 having the above-described configuration are stacked in this order. At this time, as in the above-described embodiment, the front engaging projections 133 and 143 of the housing main body 110 and the housing cover 140 and the front engaging concave portions 131 and 171 of the housing main body 110 and the lower end housing 150 are stacked. The engagement force between the housing main body 110 and the housing cover 140 on the rear side of the projecting convex portions 134 and 144 and the housing main body 110 and the lower end housing 150 on the rear side of which the engagement concave portions 132 and 172 are engaged. It is getting smaller. Therefore, if the connector 101 is to be assembled while the connection terminal 19 is in the half-inserted state, the lower end housing 150 and the housing body 110 in which the connection terminal is half-inserted and the upper housing body 110 and the housing cover 140 are inserted. It can be detected that the front engaging projections 133 and 143 and the engaging recesses 131 and 171 are disengaged and the terminal is in a half-inserted state. As a result, it is possible to prevent the connector 101 from being assembled with the terminal half inserted.

  14 is a perspective view of the connector 101 assembled in this way, FIG. 15 is a front view seen from the terminal fitting surface side, FIG. 16 is a side view of the connector 101, and FIG. 17 is a connection terminal of the connector 101. It is sectional drawing along an insertion direction.

  Next, the 0.64 terminal three-pole connector 201 (see FIG. 21) will be described. This 0.64 terminal three-pole connector 201 (hereinafter referred to as “connector 201”) is similarly arranged in three-pole parallel with 0.64 terminals in a lower end housing 250 (see FIG. 20) that accommodates 0.64 terminals in parallel with three poles. A predetermined number of housing main bodies 210 (see FIG. 19) are stacked and covered with a housing cover 240 (see FIG. 18). The 0.64 terminal in this case refers to a small connection terminal 18 (see FIG. 30) having a terminal width of 0.64 mm. In addition, about the structure equivalent to the structure of the above-mentioned connector 101, corresponding code | symbol is attached | subjected to drawing and detailed description is abbreviate | omitted.

  An arrow 241 indicating the insertion direction of the connector 201 into the holder is formed on the upper surface of the housing cover (see FIG. 18A). In addition, a guide rib 249 is formed to project from the center of both sides of the lower surface of the housing cover 240 (see FIG. 18B). Similarly, a guide rib 239 protrudes from the center of both side portions of the lower surface of the housing body 210 (see FIG. 19B). On the other hand, guide groove portions 218 that receive the guide ribs 249 and 239 are formed in the center of both side portions of the upper surface of the housing body 210 (see FIG. 19A), and the guide ribs 249 are also formed in the center of both side portions of the upper surface of the lower end housing 250. A receiving guide groove 258 is formed (see FIG. 20).

  The connector 201 also has the same effect as the above-described effect, that is, the connection terminal 18, by reducing the engagement force of each housing of the connector housing from the front side to the rear side. However, in the half-inserted state, the engagement portions on the front side of the housing cover 240, the housing main body 210, and the lower end housing 250 are disengaged, so that an effect of easily confirming the terminal inserted state is achieved.

  Next, 0.64 terminal 6-pole connectors 301 and 302 (see FIGS. 27 and 31) will be described. In addition, about the structure equivalent to the structure of the above-mentioned connector 101,201, a corresponding code | symbol is attached | subjected to drawing and detailed description is abbreviate | omitted.

  These 0.64 terminal 6-pole connectors 301 and 302 (hereinafter referred to as “connectors 301 and 302”) are similarly connected to the lower end housing 350 that accommodates 0.64 terminals in 6-pole parallel, and 0.64 terminals in 6-pole parallel. A predetermined number of housing main bodies 310 to be accommodated are stacked, and one of two types of housing covers 380 and 390 is covered on the top. In this case, two types of housing covers are prepared: an A-type housing cover 380 shown in FIG. 23 and a B-type housing cover 390 shown in FIG. This is provided in accordance with the type of the holder into which the connectors 301 and 302 are inserted, and the connector 301 (see FIG. 27) covered with the A type housing cover 380 is the corresponding A type. It is inserted only into the holder and cannot be inserted into the B type holder. On the other hand, the connector 302 (see FIG. 31) covered with the B-type housing cover 390 is inserted only into the corresponding B-type holder and cannot be inserted into the A-type holder.

  The connectors 301 and 302 also have the same effects as those described above, that is, the connection terminals 18, by reducing the engaging force of each connector housing from the front side to the rear side. However, in the half-inserted state, the front-side engaging portions of the housing cover 340, the housing main body 310, and the lower end housing 350 are disengaged, so that the terminal inserted state can be easily confirmed.

  Further, in these connectors 101, 201, 301, and 302, the engagement forces of the lower end connector housings 150, 250, 350, the connector housing main bodies 110, 210, 310, and the front side engaging portions of the housing covers 140, 240, 380, 390 34 is made smaller than the engaging force of the rear engaging portion, in addition to the effect of the terminal half-fitting detection described above, the effect shown in FIG. Hereinafter, this effect will be specifically described.

  FIG. 34 (A) shows the connection terminal half-inserted state by increasing the engagement force between the connector housings and housing covers of the connectors 101, 201, 301, and 302, unlike the above embodiment, on the front side than on the rear side. The modification which detects is shown. Although the connection terminal half-inserted state can be detected by such a modified structure, when the adjacent electric wires W are pulled apart from each other after the connector is assembled (see the arrow in FIG. 34A), the connector housing Since the rear side engaging force is weak, there is a possibility that the connector housing once laminated can be easily detached as shown in FIG. However, as in the present embodiment, the engagement force of the front engagement portion between the lower end housing and the housing body of the connectors 101, 201, 301, 302 is made weaker than the engagement force of the rear engagement portion, so that FIG. As shown in B), even if the adjacent electric wires W are pulled apart from each other, the lower end housing, the housing main body, and the housing cover that have been laminated once are laid by the sufficient engagement force on the rear side between the lower end housing and the housing main body. It has the merit that it is hard to come off.

  Next, the holder 500 for inserting and housing the connectors 101, 201, 301, 302 assembled in this way will be described. This holder 500 inserts and accommodates the connectors 101, 201, 301, 302 assembled as described above, and the female terminals inserted into these connectors 101, 201, 301, 302 by the lever principle of levers are male connectors. It plays a role of fitting into a male terminal (not shown in FIG. 41) of (see FIG. 41). The holder 500 is made of a resin such as PBT having excellent strength and moldability, such as a 24-pole A type holder 510 as shown in the perspective view of FIG. 35 or a 24-pole B type holder shown in the perspective view of FIG. 520, and a 66-pole holder 530 shown in the perspective view of FIG.

  More specifically, a 24-pole A-type holder 510 (hereinafter referred to as “holder 510”) shown in FIG. 35 inserts and accommodates an A-type, 4-stage laminated connector 201 (see FIG. 21) with 0.64 terminals and 3 poles. 0.64 terminal accommodating portion 511 to be inserted, and 2.3 terminal 6 pole single-pole connector formed on both sides adjacent to it and separated by lever engaging claw protection wall portion 517 to accommodate 2.3 terminals The housing parts 512 and 513 are provided. A lance 514 is formed in parallel below the holder 510 so as to engage with a single terminal connector having 2.3 terminals and 6 poles and hold the single terminal connector in the holder. This makes it possible to accommodate one 0.64 terminal three-pole four-stage laminated connector 201 and two 2.3 terminal six-pole single-layer connectors, that is, a total of 24 connection terminals in this holder 510. Yes.

  A lever 515 having a substantially T-shape in a side view is attached to the holder 510 so that the connection terminals of these connectors 201 and single-layer connectors are fitted to the male terminals of the male connector using the lever principle. ing. A part of the lever 515 is accommodated in the lever engaging claw protection wall portion 517 of the holder 510, and only the operation portion 516 of the lever 515 protrudes from the holder 510.

  The 24-pole B type holder 520 shown in FIG. 36 has a basic configuration in common with the 24-pole A type holder 510 shown in FIG. The holder 520 also has a lever 525 for low connector fitting.

  The 66-pole holder 530 shown in FIG. 37 includes a 0.64 terminal housing portion 531 for inserting and housing a B type 0.64 terminal 6 pole 4-stage laminated connector 302 (see FIG. 31) and an A type 0.64 terminal. 1. A 0.64 terminal accommodating portion 532 for inserting and accommodating a 6-pole four-stage laminated connector 301 (see FIG. 27) and a single 2 for inserting and accommodating a 2.3-terminal six-pole three-stage laminated connector 101 (see FIG. 14). A three-terminal housing portion 533 is provided. Further, unlike the above-described embodiment, a lever 535 that accommodates the connection terminals of these connectors 302, 301, and 101 in the male terminal of the male connector based on the lever principle is formed in a square U shape in a top view. It is attached to the holder 530 so as to straddle both sides of the holder 530.

  FIG. 38 shows a 24-pole A-type holder 510 in a state where one A-type 0.64 terminal 3-pole 4-stage laminated connector 201 and two 2.3-terminal 6-pole single-layer connectors 110 ′ are inserted and accommodated. It is a perspective view.

  FIG. 39 also shows a 24-pole B-type holder 520 in which one B-type 0.64 terminal 3-pole 4-layer laminated connector housing 201 and two 2.3-terminal 6-pole single-layer connectors 110 ′ are inserted and housed. It is the perspective view which showed.

  Further, FIG. 40 shows an A type 0.64 terminal 6 pole 4-stage laminated connector 302, a B type 0.64 terminal 6 pole 4 stage laminated connector 301, and a 2.3 terminal 6 pole 3 stage laminated. It is the perspective view which showed the 66 pole holder 530 of the state which inserted and accommodated the connector 101. FIG.

  And while inserting the holder 510 in the holder accommodating part 610 of the male connector 600, the holder 520 is inserted in the holder accommodating part 620 of the male connector 600. FIG. The holder 530 is inserted into a connector housing portion of a male connector not shown here. Thereafter, the levers provided in the holders 510, 520, 530 are raised, and the holders 510, 520, 530 are made to have predetermined holder accommodating portions 610 of the male connector 600 having excellent strength and moldability, such as PBT, as shown in FIG. Insert at 620. In the male connector 600, a male terminal corresponding to the number of poles of the holder is protruded and formed at the bottom portion not shown here. Further, these male terminals are connected to a substrate and electric wires (not shown) here. After inserting the holder with the levers raised in the respective holder accommodating portions 610 and 620 of the male connector 600, by tilting the lever in a state where the connection terminal on the holder side is half-fitted to the male terminal on the male connector side, Although not shown in detail here, the holders 510, 520, and 530 are placed in the holder housing portions of the male connector 600 according to the lever principle while the engaging claw provided on the lever is engaged with the engaging recess of the male connector 600. It is pulled in with low mating force. Thus, the female terminal provided on the holder side is guided so as to be completely fitted to the male terminal provided on the male connector side.

  As described above, even in the LIF connector according to the latter embodiment of the present invention, the effects produced in the laminated connector according to the former embodiment by applying the present invention, that is, the case where the connection terminal is in the half-inserted state are both described. When the connector housing locking means is removed, it can be confirmed from the outside, and the effect of preventing the connector in the half-inserted state of the connection terminals from being housed in the holder can be sufficiently exerted.

The connector of the preferable form of this invention is shown, FIG. 1 (A) is a front view, FIG.1 (B) is a right view. It is XX arrow directional cross-sectional view of FIG. 1 (A). FIG. 3A is a perspective view seen from the front side, and FIG. 3B is a perspective view seen from the back side. FIG. FIG. 2 is an enlarged cross-sectional view showing a state in which connection terminals are accommodated in stacked connector housings and are prevented from being detached by lances and locking projections in the connector of FIG. 1. FIG. 4 is an enlarged cross-sectional view showing an engagement state of an engagement concave portion and an engagement convex portion of a connector housing locking means provided on the front side of the connector housing of FIG. 3. FIG. 4 is an enlarged cross-sectional view showing an engagement state of an engagement concave portion and an engagement convex portion of a connector housing locking means provided on the rear side of the connector housing of FIG. 3. It is an expanded sectional view which shows the engagement convex part of FIG. It is an expanded sectional view which shows the engagement convex part of FIG. FIG. 9A shows a modified example of the engaging convex portion of FIG. 7, FIG. 9A shows the engaging surface of the collar portion as an inclined surface of a substantially V-shaped projection, and FIG. 9B shows the engaging surface of the collar portion. It is an expanded sectional view of the state where is formed in the shape of an inclined surface of a slide type. FIG. 10A shows a state of engagement of the connector housing locking means when the connector housings of FIG. 3 are stacked, FIG. 10A is a side view when the connection terminals are normally accommodated, and FIG. It is a side view in case the terminal for a connection is accommodated in the half insertion state. It is the perspective view (FIG. 11 (A)) which looked at the 2.3 terminal housing cover of this invention from diagonally upward, and the perspective view (FIG. 11 (B)) which looked at this 2.3 terminal housing cover from diagonally downward. It is the perspective view (FIG. 12 (A)) which looked at the 2.3 terminal housing main body of this invention from diagonally upward, and the perspective view (FIG. 12 (B)) which looked at this 2.3 terminal housing main body from diagonally downward. It is the perspective view (FIG. 13 (A)) which looked at the 2.3 terminal lower end housing of this invention from diagonally upward, and the perspective view (FIG. 13 (B)) which looked at this 2.3 terminal lower end housing from diagonally downward. The 2.3 terminal housing main body shown in FIG. 12 is laminated on the 2.3 terminal lower end housing shown in FIG. 13, and the 2.3 terminal housing cover shown in FIG. It is a perspective view which shows a terminal 6 pole 3 step | paragraph laminated connector from diagonally upward. It is the front view which looked at the 2.3 terminal 6 pole 3 step | paragraph laminated connector shown in FIG. 14 from the terminal fitting surface side. It is the side view which looked at the 2.3 terminal 6 pole 3 step | paragraph laminated connector shown in FIG. 14 from the side. It is sectional drawing which looked at the state which cut | disconnected the 2.3 terminal 6 pole 3 step | paragraph laminated connector shown in FIG. 14 along the longitudinal direction of the terminal for a connection. The perspective view (FIG. 18 (A)) which looked at the 0.64 terminal 3 pole housing cover of this invention from diagonally upward, and the perspective view which looked at this 0.64 terminal 3 pole housing cover from diagonally below (FIG. 18 (B)) ). A perspective view of the 0.64 terminal 3-pole housing body of the present invention as viewed obliquely from above (FIG. 19A) and a perspective view of this 0.64 terminal 3-pole housing body as viewed obliquely from below (FIG. 19B) ). The perspective view (FIG. 20 (A)) which looked at the 0.64 terminal 3 pole lower end housing of this invention from diagonally upward, and the perspective view which looked at this 0.64 terminal 3 pole housing lower end housing from diagonally downward (FIG. 20 (B)) )). The 0.64 terminal 3-pole housing body shown in FIG. 19 is stacked on the 0.64 terminal 3-pole lower end housing shown in FIG. 20, and the 0.64 terminal 3-pole housing cover shown in FIG. It is a perspective view which shows the 0.64 terminal 3 pole 4 step | paragraph laminated connector of the state from the diagonally upward direction. It is the front view which looked at the 0.64 terminal 3 pole 4 step | paragraph laminated connector shown in FIG. 21 from the terminal fitting surface side. A perspective view of the A type of the 0.64 terminal 6-pole housing cover of the present invention as viewed obliquely from above (FIG. 23A) and a perspective view of this 0.64 terminal 6-pole housing cover as viewed from diagonally below (FIG. 23). (B)). A perspective view of the B type of the 0.64 terminal 6-pole housing cover of the present invention as viewed obliquely from above (FIG. 24A) and a perspective view of this 0.64 terminal 6-pole housing cover from obliquely below (FIG. 24). (B)). The perspective view (FIG. 25 (A)) which looked at the 0.64 terminal 6 pole housing main body of this invention from diagonally upward, and the perspective view which looked at this 0.64 terminal 6 pole housing main body from diagonally downward (FIG. 25 (B)) ). The perspective view (FIG. 26 (A)) which looked at the 0.64 terminal 6 pole lower end housing of this invention from diagonally upward, and the perspective view (FIG. 26 (B)) which looked at this 0.64 terminal 6 pole lower end housing from diagonally downward ). The 0.64 terminal 6-pole housing body shown in FIG. 25 is stacked on the 0.64 terminal 6-pole lower end housing shown in FIG. 26, and the 0.64 terminal 6-pole housing cover A shown in FIG. It is a perspective view which shows the 0.64 terminal 6 pole 4 step | paragraph laminated connector of the state which covered the type from diagonally upward. It is the front view which looked at the 0.64 terminal 6 pole 4 step | paragraph laminated connector shown in FIG. 27 from the terminal fitting surface side. It is the side view which looked at the 0.64 terminal 6 pole 4 step | paragraph laminated connector shown in FIG. 27 from the side. It is sectional drawing which looked at the state which cut | disconnected the 0.64 terminal 6 pole 4 step | paragraph laminated connector shown in FIG. 27 along the longitudinal direction of a terminal from the side. The 0.64 terminal 6-pole housing body shown in FIG. 25 is laminated on the 0.64 terminal 6-pole lower end housing shown in FIG. 26, and the 0.64 terminal 6-pole housing cover B shown in FIG. It is a perspective view which shows the 0.64 terminal 4 step | paragraph laminated connector of the state which covered the type from diagonally upward. It is the front view which looked at the 0.64 terminal 6 pole 4 step | paragraph laminated connector shown in FIG. 31 from the terminal fitting surface side. It is sectional drawing which expanded and showed the engagement convex part and the engagement recessed part of the front side of a lower end housing, a housing main body, and a housing cover. When the engaging force of the front engaging portion between the lower end housings or between the lower end housing and the housing main body is larger than the engaging force of the rear engaging portion, the adjacent housing main bodies or the electric wires of the adjacent housing main body and the lower end housing The side view (FIG. 34 (A)) which shows the state which pulled | pulled, and the engaging force of the front side engaging part of lower end housings or a lower end housing and a housing main body was made smaller than the engaging force of the rear side engaging part It is a side view (Drawing 34 (B)) which shows the state where the electric wires of the adjoining housing bodies or the adjoining housing main body and the lower end housing were pulled. It is a perspective view which shows a 24 pole A type holder. It is a perspective view which shows a 24 pole B type holder. It is a perspective view which shows a 66 pole holder. It is a perspective view which shows the state which inserted the 0.64 terminal 6 pole 4 step | paragraph A type laminated connector and the single layer 2.3 terminal connector in the 24 pole A type holder. It is a perspective view which shows the state which inserted the 0.64 terminal 6 pole 3 step | paragraph B type laminated connector and the single layer 2.3 terminal connector in the 24 pole B type holder. It is a perspective view which shows the state which inserted the 0.64 terminal 6 pole 4 step | paragraph laminated connector and the 2.3 terminal 6 pole 3 step | paragraph laminated connector in the 66 pole holder. It is a perspective view which shows the male connector which implement | achieves a connector low fitting by inserting a 24 pole A type holder and a 24 pole B type holder. FIG. 42A is a perspective view seen from the front side, and FIG. 42B is a perspective view seen from the back side. FIG. FIG. 43 is an enlarged cross-sectional view illustrating a state in which the connector housings of FIG. 42 are stacked and the connection terminals accommodated in the lower connector housing are prevented from being double-detached by lances and locking projections. FIG. 43 is an enlarged cross-sectional view illustrating an engagement state of an engagement concave portion and an engagement convex portion of a connector housing locking unit that stacks and unites the connector housings of FIG. FIG. 45A is a front view and FIG. 45B is a right side view of a conventional connector formed by stacking and combining the connector housings of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Connector 11 Connector 12 Connector housing 12a Side part 13, 14, 15 Connector housing locking means 16 Terminal accommodation chamber 16a Upper wall 16b Lower wall 16c Front wall 17 Connector housing locking means 18 Connection terminal 18a Locking receiving part 18b Engaging recess DESCRIPTION OF SYMBOLS 19 Connection terminal 20 Slit 22 Lance 24 Overlay part 26 Locking claw 28 Lance receiving part 30 Locking protrusion 31 Connection bar insertion hole 32 Engagement recessed part 33, 34 Engagement convex part 35 Gutter part 35a Engagement surface 35b Engagement Surface 35c Engagement surface 36 Guide concave groove 37 Gutter 37a Engagement surface 38 Guide rib 40 Cover 101 2.3 terminal 6 pole connector 110 Housing body 110 '2.3 terminal 6 pole single layer connector 116 Terminal accommodating chamber 117 Window 122 Lance 130 Locking projection 131 Engaging recess 132 Engaging recess 133 Engaging convex part 134 Engaging convex part 140 Housing cover 141 Reinforcing ribs 143 and 144 Engaging convex part 145 Hook part 147 Hook part 148 Locking projection part 150 Lower end housing 150 2.3 Terminal 6 pole lower end housing 156 Terminal accommodation Chamber 157 Window 162 Lance 171, 172 Engaging recess 201 0.64 terminal 3 pole connector 210 Housing body 216 Terminal accommodating chamber 218 Guide groove 239 Guide rib 240 Housing cover 241 Arrow 249 Guide rib 258 Guide groove 250 Lower housing 301, 302 0.64 terminal 6 pole connector 310 Housing body 340 Housing cover 350 Lower end housing 380, 390 Housing cover 500 Holder 510 (24 pole A type) holder 511 0.64 terminal accommodating part 512, 513 .3 Terminal housing portion 514 Lance 515 Lever 516 Operation portion 517 Lever engaging claw protection wall portion 520 (24 pole B type) holder 521 0.64 Terminal housing portion 525 Connector low fitting lever 530 (66 pole) holder 531 532 0.64 terminal accommodating portion 533 2.3 terminal accommodating portion 535 lever 600 male connector 610, 620 holder accommodating portion H engaging height h engaging height P longitudinal axis W electric wire θ obtuse angle

Claims (6)

  Connector housing locking means that is provided on one side and the other side of the plurality of connector housings that accommodate the connection terminals, and stacks and unites the connector housings, and protrudes from one connector housing. A connector provided with a locking projection for detecting a half-insertion state of the connection terminal by engaging with a connection terminal accommodated in the other connector housing to be stacked, provided on one side of the connector housing. A connector characterized in that the engaging force of both the connector housing locking means is set to be smaller than the engaging force of both the connector housing locking means provided on the other side.   Connector housing locking means that is provided on both front and rear sides of the plurality of connector housings that accommodate the connection terminals, and stacks and merges the connector housings, and protrudes from one connector housing, and the connector housings are laminated. A connector provided with a locking projection for detecting a half-inserted state of the connection terminal by engaging with the connection terminal accommodated in the other connector housing. A connector characterized in that the engaging force of the connector housing locking means is set to be smaller than the engaging force of both the connector housing locking means provided on the rear side.   The engaging surfaces of the flanges of the engaging projections of the two connector housing locking means provided on the front side are formed as a convex arc surface or an inclined surface with an obtuse angle with respect to the longitudinal axis of the engaging projection. The engagement surface of the flange portion of the engagement convex portion of both connector housing locking means provided on the rear side is formed in a plane substantially perpendicular to the longitudinal axis of the engagement convex portion. The connector according to claim 2.   The engagement height of the flange portion at the engagement convex portion of both connector housing lock means provided on the front side is greater than the engagement height of the flange portion at the engagement convex portion of both connector housing lock means provided on the rear side. The connector according to claim 2, wherein the connector is configured to be lower.   The engaging force of both connector housing locking means provided on the front side of the connector housing is disengaged from both connector housing locking means provided on the front side when the connecting terminal is in a half-inserted state. The invention is characterized in that when the connecting terminal is properly inserted, it is defined so that the engagement in both connector housing locking means provided on the front side is maintained. Item 5. The connector according to any one of Items 4. A connector holding structure in which the connection terminals are accommodated in a plurality of connector housings of the connector according to claim 1 and the connector is accommodated in a holder.

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