JP2016038941A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector in which primary fixing and secondary fixing of an upper stage terminal and at least primary fixing of a lower stage terminal can be performed even when a secondary fixing position of the upper stage terminal and a primary fixing position of the lower stage terminal are overlapped with each other in a direction perpendicular to an insertion direction of the upper stage terminal and the lower stage terminal.SOLUTION: A retainer 20 is inserted in a retainer mount groove 19 of a housing 12 (A), and a lower stage lance member 18 is inserted into a lower stage terminal mount portion 14 (B), and pushed into a lower stage lance member holding portion 33 through an opening portion 21 of the retainer 20 (C) to hold the lower stage lance member 18. Under the state that the retainer 20 is further inserted in the housing 12 along the retainer mount groove 19 (D), an upper stage terminal is inserted into an upper stage terminal mount portion 13 and primarily fixed by an upper stage lance, and the lower stage terminal is inserted into the lower stage terminal mount portion 14 through the opening portion 21 of the retainer and primarily fixed by the lower stage lance member 18. The retainer 20 is further inserted to secondarily fix at least the upper stage terminal.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a connector, and more particularly to a connector that accommodates an upper terminal and a lower terminal, respectively.

As a small connector having a plurality of terminals, for example, in Patent Document 1, as shown in FIG. 17, an upper terminal 4 and a lower stage are arranged in a plurality of terminal accommodating portions 2 and 3 arranged in two upper and lower stages in the housing 1. A connector in which each terminal 5 is accommodated is disclosed.
The upper terminal 4 and the lower terminal 5 have the same shape, and the housing 1 includes a lance 6 for primarily fixing the upper terminal 4 and a lance 7 for primarily fixing the lower terminal 5. Are formed at the same position from the front end. Further, a fixing member 8 for secondary fixing of the upper terminal 4 and the lower terminal 5 is slidable in a direction perpendicular to the insertion direction of the upper terminal 4 and the lower terminal 5 between the temporary fixing position and the main fixing position. Are incorporated in the housing 1.

  With the fixing member 8 positioned at the temporary fixing position, the upper terminal 4 is inserted into the upper terminal accommodating portion 2 and is primarily fixed by the lance 6, and the lower terminal 5 is passed through the through hole 8A of the fixing member 8. On the other hand, after being inserted into the lower terminal accommodating portion 3 and primarily fixed by the lance 7, when the fixing member 8 is slid to the main fixing position, the upper end portion 8 </ b> B of the fixing member 8 contacts the step portion 4 </ b> A of the upper terminal 4. Thus, the upper terminal 4 is secondarily fixed, and the lower edge terminal 8 </ b> A of the fixing member 8 comes into contact with the step part 5 </ b> A of the lower terminal 5 so that the lower terminal 5 is secondarily fixed.

JP 2006-100228 A

  In the connector of Patent Document 1, since the upper terminal 4 and the lower terminal 5 have the same shape, the lances 6 and 7 for primarily fixing the upper terminal 4 and the lower terminal 5 are located at the same position from the front end of the housing 1. The upper terminal 4 and the lower terminal 5 can be secondarily fixed by sliding the fixing member 8 in a direction orthogonal to the insertion direction of the upper terminal 4 and the lower terminal 5.

However, in a connector in which the upper terminal and the lower terminal have different shapes, the primary fixing of the upper terminal and the lower terminal is performed at the same position from the front end of the housing, and the secondary fixing is also performed at the same position from the front end of the housing. May not be possible.
In particular, the connector structure of Patent Document 1 is applied to a design in which the secondary fixing position of the upper terminal and the primary fixing position of the lower terminal overlap in a direction perpendicular to the insertion direction of the upper terminal and the lower terminal. Even if trying to do so, the lance for primary fixing of the lower terminal interferes with the fixing member for secondary fixing of the upper terminal, so that the fixing member cannot be slid onto the housing.

  The present invention has been made to solve such a conventional problem, and the direction in which the secondary fixing position of the upper terminal and the primary fixing position of the lower terminal are orthogonal to the insertion direction of the upper terminal and the lower terminal. It is an object of the present invention to provide a connector that can perform primary fixing of the upper terminal and secondary fixing and at least primary fixing of the lower terminal even if they overlap each other.

  In the connector according to the present invention, the upper terminal and the lower terminal are respectively inserted in the same terminal insertion direction with respect to the upper terminal accommodating portion and the lower terminal accommodating portion of the housing, and the upper terminal is inserted into the upper terminal accommodating portion. After the second fixing, the second terminal is fixed and the lower terminal is inserted into the lower terminal accommodating portion to be at least primary fixed, and the secondary fixing position of the upper terminal and the primary fixing position of the lower terminal are orthogonal to the terminal insertion direction. In the connector overlapped in the direction to be connected, a retainer receiving groove extending in the direction orthogonal to the terminal insertion direction is formed in the housing so as to reach the outside of the housing from the upper terminal receiving portion through the lower terminal receiving portion. An upper lance for primary fixing of the upper terminal disposed in the terminal accommodating portion and accommodated in the upper terminal accommodating portion, and a lower terminal accommodating of the housing A lower lance member for detachably assembling the lower stage terminal accommodated in the lower stage terminal accommodating portion, and an opening through which the lower stage terminal inserted into the lower terminal accommodating portion penetrates, and a retainer accommodated therein And a retainer that is slidably disposed in a direction perpendicular to the terminal insertion direction along the groove and has an upper terminal fixing portion that secondary-fixes the upper terminal when sliding toward the upper terminal accommodating portion. .

It is preferable to further include a lower lance member holding portion that is disposed in the lower terminal housing portion of the housing and holds the lower lance member in a removable manner.
The lower lance member held by the lower lance member holding portion can be positioned in the opening of the retainer.
Preferably, the retainer has a temporary fixing position that allows the insertion of the upper terminal into the upper terminal accommodating portion and allows the lower terminal to be inserted into the lower terminal accommodating portion through the opening, and the upper terminal fixing portion. The upper stage terminal is slidably arranged in a direction orthogonal to the terminal insertion direction along the retainer receiving groove between the main fixing position for secondary fixing.

The retainer can also have a lower terminal fixing portion for secondary fixing of the lower terminal when positioned at the main fixing position.
The housing has a fixing recess for fixing the position of the retainer inside the retainer receiving groove, and the retainer is fixed to the temporary fixing position by being fitted in the fixing recess of the housing; and It is preferable to have a main fixing protrusion that is fixed to the main fixing position by fitting into the fixing concave portion of the housing.
The housing accommodates a plurality of upper terminal terminals and accommodates a plurality of upper terminal terminals arranged in a direction orthogonal to both the terminal insertion direction and the slide direction of the retainer. You may comprise so that it may have several upper stage terminal fixing | fixed parts.

  According to the present invention, the lower lance for primarily fixing the lower terminal is removably assembled in the lower terminal accommodating portion of the housing, has the opening through which the lower terminal penetrates, and secondary fixes the upper terminal. Since the retainer having the upper terminal fixing portion is slidably arranged in the direction orthogonal to the terminal insertion direction along the retainer receiving groove of the housing, the secondary fixing position of the upper terminal and the primary fixing position of the lower terminal Even if they overlap in the direction perpendicular to the insertion direction of the upper and lower terminals, it is possible to perform primary fixing of the upper terminal and secondary fixing and at least primary fixing of the lower terminal.

The connector which concerns on Embodiment 1 of this invention is shown, (A) is a perspective view, (B) is side sectional drawing. The housing of the connector which concerns on Embodiment 1 is shown, (A) is a perspective view, (B) is a front view. 3 is a perspective view showing a retainer used for the connector according to Embodiment 1. FIG. The lower lance member used for the connector which concerns on Embodiment 1 is shown, (A) is a perspective view, (B) is a top view. It is a partially broken perspective view which shows a mode that a lower stage lance member is integrated in a housing. It is a top sectional view showing signs that a lower lance member is built in a housing. It is a partially broken perspective view which shows the housing in which the lower stage lance member was integrated. It is a top sectional view showing a housing in which a lower lance member was incorporated. FIG. 5 is a side cross-sectional view showing the connector assembly method of the first embodiment in the order of steps. It is side surface sectional drawing which shows an upper stage terminal. A lower stage terminal is shown, (A) is a perspective view, (B) is a side sectional view. It is side surface sectional drawing which shows the state by which the upper stage terminal and the lower stage terminal were fixed primarily, and passes a lower stage lance member. It is side surface sectional drawing which shows the state by which the upper stage terminal and the lower stage terminal were primarily fixed, and passes along the protrusion for secondary stage secondary terminal fixation of a retainer. It is side surface sectional drawing which shows the state by which the upper stage terminal and the lower stage terminal were secondary-fixed, and passes a lower stage lance member. It is side surface sectional drawing which shows the state by which the upper stage terminal and the lower stage terminal were secondary fixed, and passes along the protrusion for secondary stage secondary terminal fixation of a retainer. It is a partially broken perspective view which shows a mode that the lower stage lance member in the connector of Embodiment 2 is integrated in a housing. It is side surface sectional drawing which shows the conventional connector.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
Embodiment 1
FIG. 1A shows the configuration of the connector 11 according to the first embodiment. The connector 11 is a receptacle connector mounted in an electronic device such as an information device, and is formed by arranging seven upper terminal accommodating portions 13 in a housing 12 made of resin, and these upper terminal accommodating portions 13. One lower terminal accommodating part 14 is formed on the lower side, and the upper terminal accommodating part 13 and the lower terminal accommodating part 14 are arranged in two upper and lower stages.

  As shown in FIG. 1B, the upper terminal 15 is accommodated in each upper terminal accommodating portion 13 and the lower terminal 16 is accommodated in the lower terminal accommodating portion 14. The upper terminal 15 is accommodated in the corresponding upper terminal accommodating portion 13 by being inserted along the predetermined terminal insertion direction D, and the lower terminal 16 is also inserted along the same terminal insertion direction D as the upper terminal 15. Thus, it is accommodated in the lower terminal accommodating portion 14. The upper terminal 15 and the lower terminal 16 have different shapes from each other, and are arranged so that their front ends are substantially in the same position in the terminal insertion direction D.

  In each upper terminal accommodating portion 13 of the housing 12, an upper cantilever-shaped upper portion for primarily fixing the upper terminal 15 by being caught in a through hole 15 </ b> A of the upper terminal 15 accommodated in the upper terminal accommodating portion 13. A lance 17 is arranged, and a lower lance member 18 for primarily fixing the lower terminal 16 by being caught in the through hole 16A of the lower terminal 16 accommodated in the lower terminal accommodating portion 14 is disposed in the lower terminal accommodating portion 14. Has been placed. Each upper lance 17 is formed integrally with the housing 12 and always exists in the corresponding upper terminal accommodating portion 13, and the lower lance member 18 is formed as a separate part independent of the housing 12. 12 is detachably assembled to the lower terminal housing part 14.

Further, a retainer receiving groove 19 extending in a direction orthogonal to the terminal insertion direction D of the upper stage terminal 15 and the lower stage terminal 16 is formed in the housing 12 so as to reach from the lower stage terminal accommodating part 14 to the upper stage terminal accommodating part 13. The retainer 20 is slidably disposed along the retainer receiving groove 19. By this retainer 20, each upper terminal 15 is secondarily fixed to the corresponding upper terminal accommodating portion 13, and the lower terminal 16 is secondarily fixed to the lower terminal accommodating portion 14. Further, the retainer receiving groove 19 is formed with a fixing recess 19A for fixing the position of the retainer 20.
Here, for convenience, the arrangement direction of the seven upper terminal accommodating portions 13 is the X direction, the terminal insertion direction D of the upper terminal 15 and the lower terminal 16 is the Y direction, and the direction orthogonal to both the X direction and the Y direction is the Z direction. I will call it.

  2A and 2B show the housing 12. Seven upper terminal accommodating portions 13 are arranged in the X direction. The lower end of the retainer receiving groove 19 formed inside the housing 12 passes through the bottom of the housing 12 and is opened to the outside of the housing 12, and the retainer 20 extends from the lower side of the housing 12 along the XZ plane to the retainer receiving groove 19. It is configured so that it can be inserted into.

The retainer 20 is made of resin and has a so-called frame shape in which a substantially rectangular opening 21 is formed and extends in the XZ plane, as shown in FIG. The opening 21 penetrates the lower terminal 16 inserted into the lower terminal accommodating portion 14 of the housing 12 and has a size larger than that of the lower terminal 16.
At the end of the retainer 20 in the Z direction, seven upper terminal fixing portions 22 for secondary fixing of the upper terminals 15 accommodated in the seven upper terminal accommodating portions 13 are arranged in the X direction. Each is formed to protrude. In addition, a pair of lower stages arranged at intervals from each other for secondary fixing of the lower terminal 16 accommodated in the lower terminal accommodating part 14 is provided at the edge of the retainer 20 positioned below the opening 21. A terminal fixing portion 23 is formed so as to protrude, and a notch 24 for accommodating the lower lance member 18 is formed between the pair of lower terminal fixing portions 23.

  Further, a temporary fixing projection 25 is formed on both sides of the retainer 20, and a main fixing projection 26 is formed below the temporary fixing projection 25. The temporary fixing protrusion 25 is caught in the fixing recess 19A of the retainer receiving groove 19 of the housing 12, thereby allowing the retainer 20 to be inserted into the upper terminal receiving portion 13 and the lower step through the opening 21. The terminal 16 is fixed at a temporary fixing position that allows the lower terminal 16 to be inserted into the terminal accommodating portion 14. On the other hand, the main fixing projection 26 is hooked on the fixing concave portion 19A of the retainer receiving groove 19 of the housing 12, whereby the upper terminal fixing portion 22 secondary fixes the upper terminal 15 and the lower terminal fixing portion 23. Is to fix the lower terminal 16 to the final fixing position for secondary fixing.

As shown in FIGS. 4A and 4B, the lower lance member 18 has a rectangular parallelepiped support portion 27 extending in the X direction. A cantilever-shaped lance body 28 extends from the center of the support portion 27 in the Y direction orthogonal to the support portion 27, and a pair of legs 29 extends from the support portion 27 in the −Y direction opposite to the lance body 28. It extends. The pair of leg portions 29 extend substantially in parallel with each other at an interval, and a tapered portion 30 is formed at an end portion in the −Y direction of each leg portion 29, and the pair of leg portions 29 is formed by these tapered portions 30. Has a shape that tapers in the -Y direction. Each leg portion 29 is formed with a rib 31 extending in the Y direction along the leg portion 29 between the support portion 27 and the tapered portion 30, and at the end portion of the rib 31 in the −Y direction, Protrusions 32 that protrude in the X direction are formed adjacent to each other.
Further, the lower lance member 18 is made of resin, and the lance main body 28 and the pair of leg portions 29 have elasticity.

  As shown in FIG. 5, a lower lance member holding portion 33 that holds the lower lance member 18 in a detachable manner is formed in the lower terminal accommodating portion 14 of the housing 12. The lower lance member holding portion 33 is formed of a pair of bending members 34 each having a cross-sectional shape bent in an L shape and extending in the Y direction. One bending member 34 rises in the Z direction from the floor surface of the lower terminal accommodating portion 14 and bends in the + X direction at the upper end thereof, and the other bending member 34 rises in the Z direction from the floor surface of the lower terminal accommodating portion 14. In addition, the pair of bending members 34 are arranged such that the upper ends thereof are bent in the −X direction, and the bent portions face each other and come close to each other. The pair of bending members 34 has a length in the Y direction that is substantially equal to the ribs 31 of the pair of leg portions 29 of the lower lance member 18, and the pair of ribs 31 are fitted inside the pair of bending members 34. The rib 31 has a height in the Z direction and a width in the X direction corresponding to the rib 31.

  As shown in FIG. 6, with the pair of legs 29 facing in the −Y direction, the lower lance member 18 is inserted into the lower terminal accommodating portion 14 from the + Y direction end of the housing 12 to hold the lower lance member. When pushed into the portion 33, the tapered portions 30 of the pair of leg portions 29 of the lower lance member 18 come into contact with the pair of bending members 34 of the lower lance member holding portion 33 and elastically deform so that the pair of leg portions 29 approach each other. And inserted between the pair of bending members 34. As shown in FIGS. 7 and 8, the protrusions 32 formed at the ends in the −Y direction of the pair of ribs 31 pass between the pair of bending members 34, and the − of the lower lance member holding portion 33 − When exposed to the Y direction side, the elastic deformation of the pair of leg portions 29 is released, the pair of leg portions 29 returns to the original state, and the pair of ribs 31 are fitted inside the corresponding bending members 34, respectively. At the same time, the pair of protrusions 32 are hooked on the corresponding ends of the bending member 34 in the −Y direction.

  At this time, since the bending member 34 has a length in the Y direction substantially equal to the rib 31 of the lower lance member 18, the support portion 27 of the lower lance member 18 is connected to the + Y direction end portions of the pair of bending members 34. To touch. The pair of bending members 34 has a height in the Z direction and a width in the X direction corresponding to the pair of ribs 31. Accordingly, the positions of the lower lance member 18 in the X direction, the Y direction, and the Z direction with respect to the housing 12 are fixed by the lower lance member holding portion 33.

Next, a method for assembling the connector 11 according to the first embodiment will be described.
First, as shown in FIG. 9 (A), the retainer 20 is inserted into the retainer receiving groove 19 formed inside the housing 12 from below the housing 12 along the XZ plane, and shown in FIG. 9 (B). As shown, the upper end portion of the retainer 20 is located in the lower terminal receiving portion 14 of the housing 12 so that the lower lance member holding portion 33 can be seen from the + Y direction end portion of the housing 12 through the opening 21 of the retainer 20. Then, the insertion of the retainer 20 is stopped.

  Then, the lower lance member 18 is inserted into the lower terminal accommodating portion 14 from the + Y direction end of the housing 12 and is pushed into the lower lance member holding portion 33 through the opening 21 of the retainer 20 as shown in FIG. As shown, the lower lance member holding portion 33 holds the lower lance member 18. At this time, the lance body 28 of the lower lance member 18 held by the lower lance member holding portion 33 protrudes on the insertion path of the retainer 20, but is positioned inside the opening 21 of the retainer 20. Therefore, the insertion of the retainer 20 along the retainer receiving groove 19 can be resumed without interfering with the insertion operation of the retainer 20.

  Therefore, the retainer 20 is further inserted into the housing 12 along the retainer receiving groove 19, and as shown in FIG. 9D, the upper end portion of the retainer 20 is the upper terminal receiving portion 13 and the lower terminal receiving portion of the housing 12. 14, the retainer 20 does not enter the upper terminal accommodating portion 13 of the housing 12 at the upper end portion, and the opening 21 is in a position suitable for the lower terminal accommodating portion 14. This is a temporary fixing position that allows the insertion of the upper terminal 15 into the inside and allows the lower terminal 16 to be inserted into the lower terminal accommodating part 14 through the opening 21 of the retainer 20.

  At this time, as shown in FIG. 3, the temporary fixing protrusions 25 formed on both sides of the retainer 20 are caught by the fixing recess 19A of the retainer receiving groove 19 of the housing 12 shown in FIG. 9A. The retainer 20 is fixed at the temporary fixing position. In addition, a click feeling is generated when the temporarily fixing protrusion 25 of the retainer 20 is caught in the fixing recess 19A of the retainer receiving groove 19, and the operator has reached the temporarily fixed position based on the click feeling. Can be recognized.

  Thus, with the retainer 20 fixed in the temporarily fixed position, the upper terminal 15 and the lower terminal 16 are inserted into the upper terminal accommodating part 13 and the lower terminal accommodating part 14 of the housing 12. As shown in FIG. 10, it is connected to the tip of the cable 35, and has a through hole 15A cut out in a rectangular shape and a step portion 15B formed closer to the cable 35 than the through hole 15A. Further, as shown in FIGS. 11A and 11B, the lower terminal 16 is connected to the tip of the cable 36 and has a rectangular through hole 16A formed by cutting a flat plate portion into a rectangular shape. And a pair of bent portions 16B which are bent so as to protrude outward from the mutually opposing edge portions of the through-hole 16A.

When the upper terminal 15 is inserted into the upper terminal accommodating portion 13 from the −Y direction end portion of the housing 12 with the retainer 20 positioned at the temporarily fixed position, as shown in FIG. The upper lance 17 arranged in the cantilever shape is hooked in the through hole 15A of the upper terminal 15 so that the upper terminal 15 is primarily fixed in the upper terminal accommodating portion 13.
Similarly, when the lower terminal 16 is inserted into the lower terminal accommodating portion 14 from the −Y direction end portion of the housing 12, a piece of the lower lance member 18 held by the lower lance member holding portion 33 in the lower terminal accommodating portion 14. When the cantilever-shaped lance main body 28 is hooked in the through hole 16 </ b> A of the lower terminal 16, the lower terminal 16 is primarily fixed in the lower terminal accommodating portion 14.

Here, even if a stress is applied to the lower terminal 16 in the direction in which the lower terminal 16 is pulled out from the lower terminal accommodating portion 14, that is, the −Y direction, the pair of ribs 31 of the lower lance member 18 are paired with the lower lance member holding portion 33. Therefore, the rotation moment generated in the lower lance member 18 due to the stress is received by the lower lance member holding portion 33, and the lower terminal 16 is prevented from being pulled out.
Even if a stress in the −Y direction acts on the upper terminal 15, the upper terminal 15 is formed integrally with the housing 12, so that the rotational moment generated in the upper lance 17 due to the stress is generated in the housing 12. The upper terminal 15 is prevented from being pulled out.

  When the retainer 20 is positioned at the temporary fixing position, as shown in FIG. 13, the upper terminal fixing portion 22 disposed at the end of the retainer 20 in the Z direction is positioned within the upper terminal accommodating portion 13. And the lower terminal fixing portion 23 arranged at the lower edge of the retainer 20 is not located in the lower terminal accommodating portion 14, so that the upper terminal 15 and the lower terminal 16 are still secondary fixed. Absent.

  Here, when the retainer 20 is further inserted into the housing 12 along the retainer receiving groove 19, the lower end surface of the retainer 20 and the lower surface of the housing 12 form the same surface as shown in FIGS. 14 and 15. The retainer 20 serves as a main fixing position where the upper terminal 15 and the lower terminal 16 are secondarily fixed. At this time, the main fixing protrusions 26 formed on both side portions of the retainer 20 are caught by the fixing recess 19A of the retainer receiving groove 19 of the housing 12 and stopped, and the retainer 20 is fixed at the main fixing position. Become.

When the retainer 20 is located at the main fixing position, the upper terminal fixing portion 22 disposed at the end in the Z direction of the retainer 20 enters the upper terminal accommodating portion 13 and the −Y direction of the step portion 15B of the upper terminal 15 The upper terminal 15 is secondarily fixed by being positioned adjacent to the side. At the same time, a pair of lower terminal fixing portions 23 arranged at the lower edge of the opening 21 of the retainer 20 enter the lower terminal accommodating portion 14, and each of the corresponding bent portions 16 </ b> B of the lower terminal 16 has −Y. The lower terminal 16 is secondarily fixed by being positioned adjacent to the direction side. At this time, the lance body 28 of the lower lance member 18 is accommodated in a notch 24 formed between the pair of lower terminal fixing portions 23 of the retainer 20.
In this way, the assembly of the connector 11 is completed.

  According to the connector 11 of the first embodiment, the lower lance member 18 can be attached to and detached from the lower lance member holding portion 33 of the housing 12 through the opening 21 of the retainer 20 inserted into the housing 12 along the retainer receiving groove 19. The upper terminal 15 is inserted into the upper terminal accommodating portion 13 and is primarily fixed by the upper lance 17 with the retainer 20 positioned at the temporarily fixed position, and the lower terminal 16 is accommodated in the lower terminal accommodating portion 14. The upper terminal 15 is inserted and fixed primarily by the lance body 28 of the lower lance member 18, and the retainer 20 is slid to the main fixing position, whereby the upper terminal 15 is secondarily fixed by the upper terminal fixing portion 22 of the retainer 20 and the retainer 20. The lower terminal 16 is secondarily fixed by the lower terminal fixing portion 23.

Therefore, the secondary fixing position of the upper terminal 15 determined by the position of the step portion 15B of the upper terminal 15 and the primary fixing position of the lower terminal 16 determined by the position of the through hole 16A of the lower terminal 16 are the upper terminal. 15 and the lower terminal 16 can be fixed in the Z direction orthogonal to the terminal insertion direction D, and the upper terminal 15 can be fixed in the primary and secondary directions, and the lower terminal 16 can be fixed in the primary and secondary directions. Become.
For this reason, even if two types of existing terminals having different shapes are assembled to one housing in two upper and lower stages, the lance for primary fixing of the lower terminal interferes with the retainer for secondary fixing of the upper terminal. Thus, the connector can be configured by avoiding that the retainer cannot be slid into the housing.

Embodiment 2
In the first embodiment, the lower lance member holding portion 33 of the housing 12 fixes the pair of ribs 31 of the lower lance member 18 by the pair of bending members 34 extending in the Y direction. Other holding structures may be employed as long as they can be detachably held in the lower terminal accommodating portion 14.
FIG. 16 shows the structure of the lower lance member 41 and the lower lance member holding portion 43 of the housing 42 in the connector of the second embodiment. The lower lance member holding portion 43 has a pair of wall portions 45 extending in the Y direction at a distance from each other on the floor surface of the lower terminal housing portion 44 of the housing 42, and the lower terminal is interposed between the pair of wall portions 45. A prismatic portion 46 that protrudes in the + Z direction from the floor surface of the accommodating portion 44 is disposed. Further, linear grooves 47 extending in the Y direction are formed on the opposing wall surfaces of the pair of wall portions 45.

The lower lance member 41 has a prismatic support portion 48, a cantilever-shaped lance main body 49 extends in the Y direction from the side surface of the support portion 48, and the support portion 48 is placed in the center of the support portion 48 in the Z direction. A through-hole 50 penetrating therethrough is formed. The support portion 48 has a width in the X direction corresponding to the distance between the pair of wall portions 45 of the lower lance member holding portion 43, and the through hole 50 is a rectangular shape corresponding to the rectangular column portion 46 of the lower lance member holding portion 43. It has a cross-sectional shape and a size through which the prism portion 46 penetrates. Further, on the side surface on the + X direction side and the side surface on the −X direction side of the support portion 48, linear protrusions 51 corresponding to the grooves 47 formed in the wall portion 45 of the lower lance member holding portion 43 are formed. ing.
The configurations of the connector of the second embodiment other than the lower lance member 41 and the lower lance member holding portion 43 are the same as those of the connector of the first embodiment.

Within the opening 21 of the retainer 20 inserted into the housing 42, the lower lance member 41 is moved in the −Z direction and pressed against the lower lance member holding portion 43, and the rectangular column portion 46 of the lower lance member holding portion 43 is moved to the lower lance member. When the support portion 48 of the lower lance member 41 is inserted between the pair of wall portions 45 of the lower lance member holding portion 43 while passing through the through hole 50 of the 41, the projection 51 of the lower lance member 41 is held by the lower lance member. It fits into the corresponding groove 47 of the part 43. Accordingly, the positions of the lower lance member 41 in the X direction, the Y direction, and the Z direction with respect to the housing 42 are fixed by the lower lance member holding portion 43.
Even when such a lower lance member 41 and lower lance member holding portion 43 are used, the primary fixing and secondary fixing of the upper terminal 15 and the primary fixing of the lower terminal 16 and the same as the connector of the first embodiment. Secondary fixing can be performed.

In the first and second embodiments, when the retainer 20 is located at the main fixing position, the upper terminal 15 and the lower stage are formed by the upper terminal fixing portion 22 and the pair of lower terminal fixing portions 23 formed on the retainer 20. Although both of the terminals 16 are secondarily fixed, the present invention is not limited to this, and at least the retainer 20 only needs to secondarily fix the upper terminal 15. That is, the lower terminal 16 can be secondarily fixed by a member other than the retainer 20.
Further, the seven upper terminals 15 and the one lower terminal 16 are arranged in the lower stage, but the number of the upper terminals 15 and the number of the lower terminals 16 are not limited. For example, one The upper terminal 15 and one lower terminal 16 may be arranged vertically, or a plurality of upper terminals 15 and a plurality of lower terminals 16 may be arranged vertically.
Furthermore, terminals are arranged in three or more stages, a lance member is assembled to the lowermost terminal accommodating part, and a secondary retainer is fixed to each of the uppermost terminals from at least the second stage by sliding operation of a common retainer. Can also be configured.

  DESCRIPTION OF SYMBOLS 1 Housing, 2, 3 Terminal accommodating part, 4 Upper stage terminal, 5 Lower stage terminal, 6, 7 Lance, 8 Fixing member, 8A Through-hole, 8B Upper end part, 8C Lower edge part, 11 Connector, 12, 42 Housing, 13 Upper stage Terminal receiving part, 14, 44 Lower terminal receiving part, 15 Upper terminal, 15A, 16A Through hole, 16 Lower terminal, 17 Upper lance, 18, 41 Lower lance member, 19 Retainer receiving groove, 19A Fixing recess, 20 Retainer, 21 opening portion, 22 upper terminal fixing portion, 23 lower terminal fixing portion, 24 notch, 25 temporary fixing protrusion, 26 fixing protrusion, 27, 48 support portion, 28, 49 lance body, 29 leg portion, 30 taper Part, 31 rib, 32, 51 protrusion, 33, 43 lower lance member holding part, 34 bending member, 35, 36 cable, 45 wall part, 46 Square column part, 47, 52 groove, 50 through hole, D terminal insertion direction.

Claims (7)

After the upper terminal and the lower terminal are respectively inserted in the same terminal insertion direction with respect to the upper terminal housing part and the lower terminal housing part of the housing, respectively, and after the upper terminal is inserted into the upper terminal housing part and primarily fixed The secondary terminal is fixed and the lower terminal is inserted into the lower terminal accommodating portion to be at least primary fixed, and the secondary fixing position of the upper terminal and the primary fixing position of the lower terminal are orthogonal to the terminal insertion direction. For connectors that overlap in the direction of
A retainer receiving groove extending in the direction perpendicular to the terminal insertion direction is formed in the housing so as to reach the outside of the housing from the upper terminal receiving portion through the lower terminal receiving portion,
An upper lance for primary fixing the upper terminal disposed in the upper terminal accommodating portion of the housing and accommodated in the upper terminal accommodating portion;
A lower lance member that is removably assembled in the lower terminal accommodating portion of the housing and that primarily fixes the lower terminal accommodated in the lower terminal accommodating portion;
The lower terminal inserted into the lower terminal accommodating portion has an opening through which the lower terminal is penetrated, and is slidably disposed in a direction perpendicular to the terminal insertion direction along the retainer accommodating groove, and toward the upper terminal accommodating portion. And a retainer having an upper terminal fixing portion for secondary fixing of the upper terminal when sliding.   2. The connector according to claim 1, further comprising a lower lance member holding portion disposed in the lower terminal housing portion of the housing and detachably holding the lower lance member.   The connector according to claim 2, wherein the lower lance member held by the lower lance member holding portion is located in the opening of the retainer.   The retainer allows the upper terminal to be inserted into the upper terminal accommodating portion and the temporary fixing position to permit the lower terminal to be inserted into the lower terminal accommodating portion through the opening, and the upper terminal fixing. The part is arranged so as to be slidable in a direction orthogonal to the terminal insertion direction along the retainer receiving groove between the main fixing position for secondary fixing of the upper terminal. Connector described in.   The connector according to claim 4, wherein the retainer has a lower terminal fixing portion that secondary fixes the lower terminal when positioned at the main fixing position. The housing has a fixing recess for fixing the position of the retainer inside the retainer receiving groove,
The retainer is fixed at the temporary fixing position by fitting into the fixing concave portion of the housing and the temporary fixing protrusion fixed at the temporary fixing position by fitting into the fixing concave portion of the housing. The connector according to claim 4, further comprising a main fixing protrusion. The housing has a plurality of upper terminal accommodating portions arranged in a direction orthogonal to both the terminal insertion direction and the slide direction of the retainer while accommodating the plurality of upper terminals.
The connector according to claim 1, wherein the retainer has a plurality of the upper terminal fixing portions corresponding to the plurality of upper terminal accommodating portions.

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