JP2017027810A - Backlash elimination structure of lamination type connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a backlash elimination structure of a lamination type connector which allows for suppression of backlash by simple backlash elimination work.SOLUTION: In backlash elimination structure 200 of a lamination type connector, when moving a fixed cover 270 in the lateral direction, a fixed cover bottom beak 277 or a fixed cover top beak 279, provided in the fixed cover 270, invades into the notch groove 297 of a distribution board 290 or the cover surface groove 266 of an upper layer connector 210b and is fixed temporarily. By inserting a fixed cover band 271 into a fixed cover band fixing part 275 and then tightening, the distribution board 290, lower layer connector 210a and upper layer connector 210b are fixed in a backlash-free state.SELECTED DRAWING: Figure 18

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stacking structure for stacked type connectors, and more particularly, to a stacked structure for stacked type connectors formed by stacking a connector having a terminal storage portion for storing terminals on a power distribution board.

  2. Description of the Related Art Conventionally, a structure is known in which a plurality of connectors each including a housing that forms a terminal housing portion that houses a conductive terminal are stacked and installed on a support member such as a power distribution board. At this time, the invention has been disclosed in order to prevent the rattling between the plurality of connectors and the support members (hereinafter referred to as “backlashing”) and to maintain the mutual position (see, for example, Patent Documents 1 and 2). ).

Japanese Patent Laying-Open No. 2013-501050 (page 7-10, FIG. 1) Japanese Patent Laying-Open No. 2004-335305 (page 5-7, FIG. 4)

  In the invention disclosed in Patent Document 1 (connector and structure for fixing a connector to a support member), a housing provided with a plurality of terminal accommodating portions includes a pair of rail portions protruding from both side walls, and both side walls. It is provided with a pair of arm portions that are erected downward and formed in a U-shape, and a stopper portion that protrudes from the lower wall. Then, a lower-layer connector is placed on the support member, an upper-layer connector having the same structure is further stacked thereon, and the support member and the upper and lower connectors are fastened (bound) by a binding band. At this time, the rail portions provided on both side surfaces of the lower housing are sandwiched between the arm portions provided on both side surfaces of the upper housing, and the stopper portion of the upper housing is placed on the rear end surface of the upper wall of the lower housing. Abut.

Therefore, when “backlash” occurs between the support member and the lower layer housing or between the lower layer housing and the upper layer housing, the backlash is suppressed (stuck) by the binding band. Become.
However, in the invention disclosed in Patent Document 1, the binding band has a substantially J-shape, a short piece provided with a fixing means at the tip, a bottom piece continuous to the short piece, and a perpendicular to the bottom piece (parallel to the short piece). It consists of a series of long pieces. Therefore, the bottom piece is brought into contact with the lower surface of the support member, the long piece is bent and pressed against the upper surface of the upper housing, and the tip of the long piece is fixed to the short piece by the fixing means.
For this reason, since the fastening work (backlash filling work) by the binding band is complicated, there has been a demand for improving the workability of the work.

  On the other hand, in the invention (joint connector) disclosed in Patent Document 2, the one side (front side) of the connector housing is provided with a front locking recess on the top surface and a front locking projection on the bottom surface. On the other side (rear side), a rear locking convex portion is provided on the upper surface, and a rear engagement concave portion is provided on the lower surface. In addition, at the approximate center of the connector housing, an opening is provided on the upper surface and a central protrusion is provided on the lower surface. Then, the front latching protrusion of the upper connector housing is obliquely pushed into the front latching recess of the lower connector housing, and the upper connector housing is rotated so as to be parallel to the lower connector housing. The upper-layer connector housing is connected to the lower-layer connector housing by inserting the rear-engagement convex portion of the upper-layer connector housing into the rear-latching recess and finally pushing the upper-layer connector housing forward.

However, in the invention disclosed in Patent Document 2, the upper connector housing is connected to the lower connector housing by the frictional force between the concave portion and the convex portion when the upper connector housing is finally pushed forward. Therefore, there is a problem that rattling occurs due to vibration or the like.
In addition, since the uppermost connector housing does not have a central protrusion to enter, it is impossible to press the connection terminal so that it cannot be pulled out or to detect that the connection terminal is not housed in a proper position. There was a problem.

  A first object of the present invention has been made in view of such a situation, and is to provide a backlash filling structure of a multilayer connector that enables suppression of backlash by a simple backlashing operation. Another object of the present invention is to provide a stacking structure for stacked type connectors that enables holding of terminals and detection of midway intrusion.

The backlash structure of the laminated type connector according to the present invention includes a power distribution board, a lower layer connector placed on the power distribution board, an upper layer connector placed on the lower layer connector, the power distribution board, and the lower layer A backlash structure of a laminated connector having a connector and a fixed cover for fastening the upper layer connector,
The fixed cover is formed in a substantially U shape by a flexible material, and includes a fixed cover band portion, a fixed cover bottom portion, a fixed cover side portion, and a fixed cover top portion that are successively connected, and the fixed cover top portion. Is provided with a fixed cover band fixing portion for fixing the fixed cover band portion so that the fixed cover band portion can be inserted and removed, and a fixed cover bottom beak is provided on a surface of the fixed cover bottom portion facing the fixed cover top portion, A fixed cover top beak is provided on a surface of the fixed cover top facing the fixed cover bottom,
The power distribution plate is provided with a cutout groove having a size that allows the fixed cover bottom beak to enter,
The lower layer connector and the upper layer connector have the same shape, and comprise a substantially rectangular parallelepiped housing having an open front end surface,
On the upper surface of the housing is provided a positioning groove of a size that allows the fixed cover top beak to enter,
The fixed cover bottom beak enters the cutout groove of the power distribution plate, and the fixed cover top beak enters the positioning groove of the upper connector, and the fixed cover band part is the fixed cover band fixing part. The fixed band is fastened to the power distribution plate, the lower layer connector, and the upper layer connector.

  The backlash structure of the laminated connector according to the present invention has the above-described configuration, and the fixed cover bottom beak enters the cutout groove provided in the power distribution plate and is fixed by moving the fixed cover in the lateral direction. The cover top beak enters the positioning groove provided on the upper surface of the upper housing, and the power distribution board, lower layer connector and upper layer connector are temporarily fixed. It is fixed in a state without "". Therefore, the backlashing operation is simplified and the production efficiency is improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view illustrating a loosely packed structure of a multilayer connector according to Embodiment 1 of the present invention, with members separated. It is a perspective view which shows a part (connector and cover) of the member of the backlash filling structure of the laminated type connector shown in FIG. It is a front view which shows a part (connector and cover) of the member of the backlash structure of the lamination type connector shown in FIG. It is sectional drawing of the side view which shows a part (connector and cover) of the member of the backlash filling structure of the lamination type connector shown in FIG. It is a perspective view which shows a part (female terminal) of the member of the backlash structure of the lamination | stacking type connector shown in FIG. It is a side view explaining the assembly state of the backlash filling structure of the laminated type connector shown in FIG. It is a front view explaining the assembly state of the backlash structure of the laminated type connector shown in FIG. It is sectional drawing (BB cross section in FIG. 7) of the side view explaining the assembly state of the backpacking structure of the lamination | stacking type connector shown in FIG. It is sectional drawing which expands and shows a part of FIG. 8 explaining the assembly state of the backlash structure of the laminated type connector shown in FIG. FIG. 10 is a perspective view illustrating a loosely packed structure of a laminated connector according to a second embodiment of the present invention, with members separated. FIG. 11 is a perspective view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the multilayer connector shown in FIG. 10. FIG. 11 is a front view illustrating part of the members (connector and cover) for explaining the backlash structure of the laminated connector shown in FIG. 10. FIG. 11 is a plan view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the laminated connector shown in FIG. 10. FIG. 10 is a cross-sectional view (C-C cross-section in FIG. 12) illustrating a part of the members (connector and cover), illustrating a backlash filling structure of the multilayer connector illustrated in FIG. 10. FIG. 11 is a perspective view illustrating a part of the member (fixed cover) for explaining the backlash filling structure of the multilayer connector shown in FIG. 10. It is a perspective view which shows the assembly state of the backlash structure of the lamination | stacking type connector which concerns on Embodiment 2 of this invention, Comprising: It is the perspective view which shows the state fixed temporarily. FIG. 11 is an explanatory sectional view of the laminated type connector shown in FIG. 10 in an assembled state, showing a temporarily fixed state. FIG. 11 is an explanatory sectional view of the laminated type connector shown in FIG. 10 in an assembled state, and is a sectional view in a rear view showing a temporarily fixed state. FIG. 11 is a perspective view illustrating an assembled state of the backlash structure of the multilayer connector shown in FIG. FIG. 10 is a perspective view illustrating a loosely packed structure of a multilayer connector according to Embodiment 3 of the present invention, with members separated. FIG. 21 is a plan view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the laminated connector shown in FIG. 20. FIG. 21 is a front view illustrating part of the members (connector and cover) for explaining the backlash structure of the stacked type connector shown in FIG. 20. FIG. 21 is a bottom view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the multilayer connector shown in FIG. 20. FIG. 21 is a side view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the laminated connector shown in FIG. 20. FIG. 22 is a side sectional view (A-A cross section in FIG. 22) illustrating a part of the members (connector and cover), illustrating a backlash filling structure of the multilayer connector illustrated in FIG. 20. FIG. 20 is a cross-sectional view (cross-section EE in FIG. 25) illustrating a part of the member (fixed cover), illustrating a backlash filling structure of the multilayer connector illustrated in FIG. 20. It is a side view explaining the backlash filling structure of the laminated type connector which concerns on Embodiment 3 of this invention, Comprising: It is a side view which shows the time of a fixation start. 27 is a cross-sectional view (cross-sectional view taken along the line FF in FIG. 27) illustrating the backlash structure of the stacked type connector illustrated in FIG. FIG. 28 is a side view for explaining the backlash filling structure of the stacked type connector shown in FIG. 27 and showing fixing. FIG. 29 is a cross-sectional view (CC cross-section in FIG. 29) in front view illustrating the backlash structure of the stacked type connector illustrated in FIG. 27 and illustrating the end of fixing. FIG. 30 is a front sectional view for explaining a backlash filling structure of the multilayer connector shown in FIG. 27 and showing a part of FIG. 30 in an enlarged manner. FIG. 10 is a perspective view illustrating a loosely packed structure of a laminated connector according to a fourth embodiment of the present invention, with members separated. FIG. 33 is a perspective view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the multilayer connector shown in FIG. 32. FIG. 33 is a front view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the multilayer connector shown in FIG. 32. FIG. 33 is a plan view illustrating part of the members (connector and cover) for explaining the backlash filling structure of the multilayer connector shown in FIG. 32. FIG. 33 is a cross-sectional view in side view illustrating a part of the members (connector and cover) for explaining the backlash filling structure of the multilayer connector shown in FIG. 32. FIG. 37 (a) is a side view showing a temporarily fixed state of a lower-layer connector, and FIG. 37 (b) is a diagram illustrating a backlash structure of the laminated connector shown in FIG. FIG. 4 is an enlarged side sectional view showing a part of a locking portion between a lower-layer connector and a power distribution board in a temporarily fixed state. FIG. 33 is a side view illustrating a loosely-packed structure of the laminated connector shown in FIG. 32 and a part of which shows a main fixing state of a lower-layer connector. FIG. 39 (a) is a side view showing a part of the temporarily fixed state of the upper-layer connector in the main fixing state, and is a side view illustrating the backlash structure of the stacked type connector shown in FIG. (B) is sectional drawing of the side view which expands and shows a part of latching | locking part of the upper layer connector and lower layer connector in this fixed state. FIG. 33 is a side view illustrating a loosely packed structure of the multilayer connector shown in FIG. 32, partly in cross section showing the final fixed state of the upper-layer connector. FIG. 41 (a) is a cross-sectional view (front view taken along the line EE in FIG. 40) of the upper-layer connector, illustrating a fixed state of the upper-layer connector. 41 (b) is a front sectional view showing an enlarged part of the locking portion between the upper-layer connector and the lower-layer connector, and FIG. 41 (c) is one of the locking portions between the lower-layer connector and the power distribution board. It is sectional drawing of the front view which expands and shows a part.

  Hereinafter, modes for carrying out the invention (hereinafter referred to as “embodiments”) will be described with reference to the drawings. Each drawing is schematically drawn, and the present invention is not limited to the illustrated form (the shape and number of parts).

[Embodiment 1]
FIGS. 1 to 5 illustrate the backlash filling structure of the laminated connector according to Embodiment 1 of the present invention. FIG. 1 is a perspective view showing the members separated, and FIG. 3 is a front view showing a part of the member (connector and cover), and FIG. 4 is a sectional view (C- in FIG. 3) showing a part of the member (connector and cover). FIG. 5 is a perspective view showing a part of the member (female terminal).

(Backlash structure of laminated connector)
In FIG. 1, a stacking type connector backlash structure 100 (hereinafter referred to as “backlash structure”) 100 is installed on a power distribution board 190, a lower connector 110 a installed on the power distribution board 190, and a lower connector 110 a. It consists of an upper layer connector 110b. At this time, since the lower layer connector 110a and the upper layer connector 110b have the same shape, the lower layer connector 110a will be described below.
Although the direction is defined as upper (upper layer), lower (lower layer), front (front end surface), or rear (rear end surface), this direction is for convenience of explanation and is a direction in an actual use state. Is not specified. Further, the present invention does not limit the number of connectors stacked. That is, one or more connectors may be further installed on the upper connector 110b.
Hereinafter, members constituting the backlash filling structure 100 will be described first, and then the backlash filling structure 100 will be described.

(connector)
2 to 5, the connector 110 a includes a housing 120, a female terminal 130 that is inserted into the housing 120, and a male terminal 139 that is insert-molded into the housing 120.

(Female terminal)
The female terminal 130 is a substantially tubular body having a surface with which the male terminal 139 can contact, and a cable 132 is connected to the cable connecting portion 131.

(housing)
The housing 120 is a substantially rectangular parallelepiped box, and an opening for allowing insertion of the female terminal 130 is formed on one end surface (hereinafter referred to as “front end surface”) 121, and the female terminal 130 can be accommodated therein. The terminal chamber 123 from which the male terminal 139 protrudes is provided.
Further, the lower surface 124 is provided with a semi-circular loosely-filled protrusion 125 that protrudes downward at a position close to the front end surface 121, and a stopper 127 is provided on the other end surface (hereinafter referred to as “rear end surface”) 122. Further, a positioning projection 126 is provided between the front end surface 121 and the rear end surface 122 so that the projection amount increases as the rear end surface 122 is approached.
Further, the upper surface 129 of the housing 120 is provided with a plurality of upper surface openings 143 in a slit shape, and the lock beak 144 and the laminated lock locking protrusion 145 are provided on both side surfaces 128 of the housing 120, respectively. .
Further, the upper surface 129 is provided with a positioning groove 146 into which the positioning protrusion 126 of the upper connector 110b can enter. The positioning groove 146 may be a recessed portion with a bottom as long as the positioning protrusion 126 can enter.

(Stacking lock)
On both side surfaces 128 of the housing 120, a laminated fixing lock 150 is provided below the laminated lock locking protrusion 145. The laminated fixing lock 150 is substantially U-shaped in a front view, and is connected to the laminated lock fixing portion 151 fixed (integratedly formed) to the side surface 128, and is connected to the laminated lock fixing portion 151 and is parallel to the side surface 128 and downward. The stacking lock arm portion 152 extends, and the stacking lock engaging portion 154 is connected to the stacking lock arm portion 152 and extends below the lower surface 124. The laminated lock engaging portion 154 is formed with a laminated lock engaging surface 153 parallel to the lower surface 124.

(cover)
Further, on the upper surface 129 of the housing 120, a cover 160 that can be rotated (tilted) with the cover folding line 161 as a fulcrum is provided. The cover 160 includes a substantially rectangular cover surface portion 162, a terminal pressing portion 163 provided on the cover surface portion 162 in a virtual plane perpendicular to the cover folding line 161, and a cover surface portion in a virtual plane perpendicular to the cover folding line 161. 162, cover arm portions 165 provided on the side edges of 162, and lock beak locking holes 164 formed in the cover arm portions 165, respectively. The lock beak locking hole 164 may be a recessed portion with a bottom as long as the lock beak 144 can be locked.

Therefore, when the cover 160 is rotated (tilted), the terminal pressing portion 163 enters the upper surface opening 143, and when the cover 160 comes into contact with the upper surface 129, the lock beak locking hole 164 is engaged with the lock beak 144. Stop (see FIG. 1). At this time, when the female terminal 130 is inserted to the proper position of the terminal chamber 123 of the housing 120, the cover 160 holds the female terminal 130 so as not to be pulled out (not shown).
On the other hand, when the female terminal 130 is not inserted to the proper position, the cover 160 contacts the female terminal 130 and the cover 160 does not contact the upper surface 129 (not shown).
In other words, whether or not the female terminal 130 is inserted to the proper position can be detected based on whether or not the cover 160 is in contact with the upper surface 129.

(Distribution board)
The distribution board 190 is a substantially rectangular plate body, and a positioning hole 196 into which the positioning projection 126 can enter is formed at a position close to one end face (hereinafter referred to as “rear end face”) 192, and the positioning hole 196 is formed. The formed range becomes narrower, and the side edge (the range close to the side surface 198) of the lower surface 194 of this range is connected to the power distribution plate lock surface 193 to which the laminated lock locking surface 153 of the lower connector 110a is locked. (See FIG. 1). The positioning hole 196 may be a recessed portion with a bottom as long as the positioning protrusion 126 can enter.

(Backlash structure)
6 to 9 are diagrams for explaining an assembled state of the backlash structure of the laminated connector according to Embodiment 1 of the present invention. FIG. 6 is a side view, FIG. 7 is a front view, and FIG. FIG. 9 is an enlarged sectional view of a part of FIG. 8.
6 to 9, the backlash filling structure 100 includes a power distribution board 190, a lower-layer connector 110a installed on the power distribution board 190, and an upper-layer connector 110b installed on the lower-layer connector 110a.
At this time, in both the lower-layer connector 110a and the upper-layer connector 110b, the cover 160 is turned down, the terminal pressing portion 163 enters the terminal chamber 123, and the lock beak 144 is locked in the lock beak locking hole 164.
In the lower connector 110a, the back-filled protrusion 125 abuts against the upper surface 199 of the power distribution plate 190 (indicated by a position P in FIG. 8), and the position near the stopper 127 (rear end surface 122) on the lower surface 124 is the power distribution. It is in contact with the upper surface 199 of the plate 190 (indicated by position R in FIG. 9). Further, the laminated lock locking surface 153 of the lower connector 110a is locked to the power distribution plate lock surface 193 that is a part of the lower surface 194 of the power distribution plate 190 (indicated by a position Q in FIG. 9).
At this time, the stopper 127 of the lower connector 110 a abuts against the rear end surface 192 of the power distribution plate 190, and the positioning protrusion 126 of the lower connector 110 a enters the positioning hole 196 of the power distribution plate 190.

Further, in the upper layer connector 110b, the backlash ridge 125 is in contact with the upper surface 129 of the lower layer connector 110a, and is in contact with the upper surface 129 of the lower layer connector 110a at a position close to the stopper 127 of the lower surface 124. Further, the laminated lock engaging surface 153 of the upper connector 110b is engaged with the laminated lock engaging protrusion 145 of the lower connector 110a.
At this time, the stopper 127 of the upper connector 110b contacts the rear end surface 122 of the lower connector 110a, and the positioning protrusion 126 of the upper connector 110b enters the positioning groove 146 of the lower connector 110a (FIGS. 7 and 8). reference).

(Function and effect)
As described above, the lower housing 120 and the power distribution board 190 are strongly pressed at the three points of the position P, the position Q, and the position R, and the upper housing 120 and the lower housing 120 are similarly 3 Each point is strongly pressed.
Therefore, according to the backlash filling structure 100 (Embodiment 1), the play between the three members of the power distribution board 190, the lower-layer connector 110a and the upper-layer connector 110b is suppressed, and the binding band and the binding jig are not required. .
Further, since one or more housings can be installed on the upper connector 110b, three or more connectors can be easily and reliably stacked.
Further, when the terminal pressing portion 163 provided on the cover 160 enters the terminal chamber 123, the female terminal 130 inserted to the proper position is held so as not to be pulled out, while the cover 160 contacts the upper surface 129. It is possible to detect whether or not the female terminal 130 has been inserted to the proper position depending on whether or not the contact has been made.

[Embodiment 2]
FIGS. 10 to 15 illustrate the backlash structure of the laminated connector according to Embodiment 2 of the present invention. FIG. 10 is a perspective view showing the members separated, and FIG. 12 is a front view showing a part of the member (connector and cover), FIG. 13 is a plan view showing a part of the member (connector and cover), and FIG. 14 is a part of the member (connector and cover). FIG. 15 is a perspective view showing a part of the member (fixed cover). FIG. 15 is a cross-sectional view (cross-section CC in FIG. 12) showing the connector and the cover.

(Backlash structure of laminated connector)
In FIG. 10, a stacking type connector backlash filling structure 200 (hereinafter referred to as “backlash filling structure”) 200 is installed on the power distribution board 290, the lower-layer connector 210 a installed on the power distribution board 290, and the lower-layer connector 210 a. It comprises an upper layer connector 210b and a fixed cover 270 that fastens (fastens) these.
That is, as will be described below, the backlash filling structure 200 includes a fixed cover 270 in place of the laminated fixing lock 150 and the laminated lock locking protrusion 145 of the backlash filling structure 100 of the first embodiment. Therefore, the members (or portions) that are the same as or correspond to the members (or portions) of the backlash filling structure 100 may have the same last two digits and may not be described.
Since the lower layer connector 210a and the upper layer connector 210b have the same shape, the connector 210a will be described below. The present invention does not limit the number of stacked connectors. That is, one or more connectors may be installed between the lower layer connector 210a and the upper layer connector 210b.
Hereinafter, first, members constituting the backlash filling structure 200 will be described, and then the backlash filling structure 200 will be described.

(connector)
11 to 14, the connector 210 a includes a housing 220, a female terminal 230 that is inserted into the housing 220, and a male terminal 239 that is insert-molded into the housing 220. Note that the female terminal 230 and the male terminal 239 are the same as the female terminal 130 and the male terminal 139 in the backlash filling structure 100 (Embodiment 1), respectively. It may be different.

(housing)
The housing 220 is a substantially rectangular parallelepiped box, and an opening for allowing insertion of the female terminal 230 is formed on one end surface (hereinafter referred to as “front end surface”) 221, and the female terminal 230 can be accommodated therein. The terminal chamber 223 from which the male terminal 239 protrudes is provided.
The lower surface 224 is provided with a stopper 227 on one end face (hereinafter referred to as “rear end face”) 222, and further provided with a positioning protrusion 226 whose protrusion amount increases toward the rear end face 222.
Furthermore, the upper surface 229 of the housing 220 is provided with a plurality of upper surface openings 243 and a substantially rectangular positioning groove 246 in a slit shape, and lock beaks 244 are provided on both side surfaces 228 of the housing 220, respectively. Yes.

(cover)
The cover 260 is substantially the same as the cover 160 (Embodiment 1), and includes a cover folding line 261, a cover surface portion 262, a terminal pressing portion 263, a cover arm portion 265, and a lock beak locking hole 264, and A cover surface groove 266 is formed in the cover surface portion 262.
Therefore, similarly to the cover 160, when the female terminal 230 is inserted to the proper position of the terminal chamber 223, the cover 260 holds the female terminal 230 so that it cannot be pulled out. Whether or not the female terminal 230 has been inserted to the proper position can be detected based on whether or not the terminal contacts the upper surface 229.

(Fixed cover)
In FIG. 15, the fixed cover 270 is a substantially U-shaped plate material made of a flexible material such as resin, and is fixed to the fixed cover bottom 272 and the fixed cover bottom 272 that rises vertically. A cover side portion 273 and a fixed cover top portion 274 that is continuous with the fixed cover side portion 273 and substantially parallel to the fixed cover bottom portion 272 are provided. A fixed cover band fixing portion 275 is provided on an end edge of the fixed cover top portion 274 opposite to the fixed cover side portion 273. On the other hand, a fixed cover band portion 271 is provided at an end edge of the fixed cover bottom portion 272 opposite to the fixed cover side portion 273. The fixed cover band portion 271 can be bent at the boundary with the fixed cover bottom portion 272, and can be inserted into the fixed cover band fixing portion 275 and cannot be pulled out. Therefore, the fixed cover 270 has a tightening function. ing.
Further, fixed cover bottom beaks 276 and 277 are provided on the surface of the fixed cover bottom 272 facing the fixed cover top 174, while the fixed cover bottom 274 is fixed on the surface of the fixed cover top 274 facing the fixed cover bottom 272. Cover top beaks 278, 279 are provided.

(Distribution board)
The power distribution plate 290 is a substantially rectangular plate body, and has a notch groove 296 into which the positioning protrusion 226 can enter one end face (hereinafter referred to as “rear end face”) 292 and a position closer to the center from the notch groove 296. A rectangular fixing hole 297 into which the fixed cover bottom beak 277 can enter is formed (see FIG. 10). The notch groove 296 and the fixing hole 297 may each be a recessed portion with a bottom as long as the positioning protrusion 226 and the fixed cover bottom beak 277 can enter.

(Backlash structure)
16 to 19 illustrate the assembled state of the backlash structure of the multilayer connector according to Embodiment 2 of the present invention. FIG. 16 is a perspective view showing a temporarily fixed state, and FIG. FIG. 18 is a sectional view in side view showing the fixed state, FIG. 18 is a sectional view in rear view showing the temporarily fixed state, and FIG. 19 is a perspective view showing the permanently fixed state. For convenience of explanation, some of the female terminals 230 and the like are not shown.

(Temporary fixing)
16 to 18, the loosely packed structure 200 is fixed in a state where the lower layer connector 210a is placed on the power distribution board 290 and the upper layer connector 210b is placed on the lower layer connector 210a. The cover 270 is temporarily fixed. At this time, the cover 260 is turned down, the terminal pressing portion 263 enters the terminal chamber 223, and the lock beak 244 is locked in the lock beak locking hole 264.
Then, the positioning protrusion 226 of the lower connector 210 a enters the notch groove 296 of the power distribution plate 290, and the stopper 227 of the lower connector 210 a is in contact with the rear end surface 292 of the power distribution plate 290. Further, the positioning protrusion 226 of the upper connector 210b enters the positioning groove 246 of the lower connector 210a, and the stopper 227 of the upper connector 210b is in contact with the rear end surface 222 of the lower connector 210a.

Further, the fixed cover 270 is moved in the lateral direction (perpendicular to the direction in which the female terminal 230 is inserted, indicated by an arrow 201) parallel to the lower surface 224, and the fixed cover bottom 272 is moved to the lower surface 294 of the power distribution plate 290. The fixed cover top portion 274 is in contact with the upper surface 229 and the cover surface portion 262 of the upper connector 210b.
At this time, the fixed cover bottom beak 276 and the fixed cover bottom beak 277 of the fixed cover 270 have entered the notch groove 296 and the fixing hole 297 of the power distribution plate 290, respectively. In addition, the fixed cover top beak 278 and the fixed cover top beak 279 of the fixed cover 270 enter the positioning groove 246 and the cover surface groove 266 of the upper connector 210b, respectively. Therefore, the fixed cover 270 is positioned and cannot move.

(Fixed)
In FIG. 19, the fixed cover band portion 271 of the fixed cover 270 is bent at the boundary with the fixed cover bottom portion 272, inserted into the fixed cover band fixing portion 275 (indicated by the arrow 202), and further in the direction indicated by the arrow 203. The three members of the power distribution plate 290, the lower layer connector 210a, and the upper layer connector 210b are tightened.
Therefore, the three members of the power distribution plate 290, the lower layer connector 210a, and the upper layer connector 210b are fastened (bound) with the backlash suppressed (referred to as “main fixing”).

(Function and effect)
As described above, in the loosely packed structure 200 (Embodiment 2), the fixed cover 270 tightens the power distribution plate 290, the lower layer connector 210a, and the upper layer connector 210b so that the three members cannot be relatively moved relative to each other. Therefore, the three members can be permanently fixed without “rattle”.
In addition, the fixed cover 270 can be temporarily fixed by moving laterally parallel to the lower surface 224, and then the fixed cover band part 271 can be fixed by simply inserting and tightening the fixed cover band fixing part 275. Fixing work is simplified and production efficiency is improved.
Further, the fixed cover 270 is formed with a fixed cover bottom beak 276, a fixed cover top beak 278, etc., which enter the notch groove 296 of the power distribution plate 290, the positioning groove 246 of the upper connector 210b, etc. It is possible to more reliably suppress the “backlash” of the person. Then, it can be said that the fixed cover 270 is integrally formed and has both the effect of facilitating temporary fixing and the tightening effect of main fixing.
Furthermore, since a connector can be added between the lower layer connector 210a and the upper layer connector 210b, three or more connectors can be easily and reliably stacked.
Furthermore, as with the backlash filling structure 100 (Embodiment 1), it is possible to detect holding of the female terminal 230 or intermediate insertion of the female terminal 230.

[Embodiment 3]
FIGS. 20 to 26 illustrate the backlash structure of the laminated connector according to the third embodiment of the present invention. FIG. 20 is a perspective view showing the members separated, and FIG. 22 is a plan view showing a part of the member (connector and cover), FIG. 23 is a bottom view showing a part of the member (connector and cover), and FIG. 24 is a part of the member (connector and cover). 25 is a side view showing a part of the member (connector and cover) (cross-section AA in FIG. 22), and FIG. 26 is a part of the member (fixed cover). It is sectional drawing of the front view shown (EE cross section in FIG. 25).

(Backlash structure of laminated connector)
In FIG. 20, the backlash filling structure (hereinafter referred to as “backlash filling structure”) 300 of the stacked type connector 300 is installed on the power distribution board 380, the lower-layer connector 310 a installed on the power distribution board 380, and the lower-layer connector 310 a. It comprises an upper layer connector 310b and a fixing band 370 for fastening (binding) them.
That is, as will be described below, the backlash filling structure 300 has a fixing band 370 instead of the laminated fixing lock 150 and the laminated lock locking protrusion 145 of the backlash filling structure 100 of the first embodiment. Therefore, the members (or portions) that are the same as or correspond to the members (or portions) of the backlash filling structure 100 may have the same last two digits and may not be described.
Since the lower layer connector 310a and the upper layer connector 310b have the same shape, the connector 310a will be described below. The present invention does not limit the number of stacked connectors. That is, one or more connectors may be installed between the lower layer connector 210a and the upper layer connector 210b.
Hereinafter, members constituting the backlash filling structure 300 will be described first, and then the backlash filling structure 300 will be described.

(connector)
21 to 26, the connector 310 a includes a housing 320, a female terminal 330 inserted into the housing 320, and a male terminal 339 insert-molded into the housing 320. Note that the female terminal 330 and the male terminal 339 are the same as the female terminal 130 and the male terminal 139 in the backlash filling structure 100 (Embodiment 1), respectively. It may be different.

(housing)
The housing 320 is a substantially rectangular parallelepiped box, and is provided with an opening that allows insertion of the female terminal 330 on the front end surface 321, can accommodate the female terminal 330 therein, and is a terminal chamber in which the male terminal 339 protrudes. H.323.
On the lower surface 324, a stopper 327 is provided on the rear end surface 322, and a positioning boss (projection) 326 arranged in a rectangular shape is provided in a range close to the rear end surface 322.
Further, a plurality of upper surface openings 343 are provided in a slit shape on the upper surface 329 of the housing 320, and a lock beak 344 and a band insertion arm 345 are provided on both side surfaces 128 of the housing 320, respectively.
The band insertion arm 345 is formed with a fixed band insertion hole 346 penetrating in the vertical direction, and the fixed band insertion hole 346 is provided with a fixed band insertion hole projection 349. The fixed band insertion hole protrusion 349 includes a fixed band insertion hole guide surface 347 that protrudes toward the lower surface 324, and a fixed band insertion hole locking surface 348 that is continuous with the fixed band insertion hole guide surface 347 and parallel to the lower surface 324. To do.

(cover)
A cover 360 that can be rotated (tilted) with a cover fold line 361 as a fulcrum is provided on the upper surface 329 of the housing 320. Similar to the cover 160 (Embodiment 1), the cover 360 includes a cover surface portion 362, a terminal pressing portion 363, a cover arm portion 365, and a lock beak locking hole 364.
Therefore, when the cover 360 is rotated (tilted) in the same manner as the cover 160, the terminal pressing portion 363 enters the upper surface opening 343 and holds the female terminal 330 so that it cannot be pulled out. Further, whether or not the female terminal 330 is inserted to a proper position can be detected based on whether or not the cover 360 is in contact with the upper surface 329.

(Fixed band)
In FIG. 20, the fixing band 370 is a substantially U-shaped plate material formed of a flexible material such as resin, and one of a pair of fixing band side portions 371 and one of the fixing band side portions 371 facing each other. And a fixed band top portion 372 for connecting the end portions of each other.
A plurality of fixed band protrusions 379 are provided on the mutually opposing surfaces (corresponding to the inner surface) of the fixed band side portion 371. The fixed band protrusion 379 is connected to the fixed band protrusion guide surface 377 whose protrusion amount increases as it approaches the fixed band top portion 372 and the fixed band protrusion parallel to the fixed band top portion 372. It has a locking surface 378 and has a sawtooth shape (see FIG. 31 described later).

(Distribution board)
The power distribution plate 380 is a substantially rectangular plate body, and a positioning hole 385 into which the positioning boss 326 of the lower connector 310a can enter is formed in a range close to one end surface (hereinafter referred to as “rear end surface”) 382. A band fixing band locking hole 386 through which the fixing band side portion 371 of the fixing band 370 can penetrate is formed along the side edge.
The band fixing band locking hole 386 is provided with a fixing band locking hole protrusion 389 capable of locking the fixing band protrusion 379 of the fixing band 370. The fixing band locking hole protrusion 389 includes a locking guide surface 387 whose protrusion amount decreases as it approaches the upper surface 381, and a locking surface 388 connected to the locking guide surface 387 and parallel to the upper surface 381. (See FIG. 31 described later).
The positioning holes 385 are long holes formed in two rows, but the number and shape are not limited, and may be circular or rectangular holes arranged in a rectangular shape. Further, the positioning hole 385 may be a recessed portion with a bottom as long as the positioning boss 326 can enter.

(Backlash structure)
FIGS. 27 to 31 illustrate the backlash structure of the laminated connector according to the third embodiment of the present invention. FIG. 27 is a side view showing the start of fixing, and FIG. 28 is a front view showing the starting of fixing. FIG. 29 is a side view showing fixing, FIG. 30 is a front sectional view (CC section in FIG. 29), and FIG. It is sectional drawing of the front view which expands and shows a part of FIG.

(At the start of fixing)
27 and FIG. 28, the backlash filling structure 300 includes a lower layer connector 310a placed on the power distribution board 380, and further an upper layer connector 310b placed on the lower layer connector 310a. A fixed band 370 is installed. At this time, the cover 360 is turned down, the lock beak locking hole 364 of the cover 360 is locked to the lock beak 344, and the terminal pressing portion 363 has entered the terminal chamber 323 (see FIG. 25).
The positioning boss 326 of the lower connector 310 a enters the positioning hole 385 of the power distribution plate 380, and the stopper 327 of the lower connector 310 a is in contact with the rear end surface 292 of the power distribution plate 290. Further, the positioning boss 326 of the upper connector 310b enters the positioning groove 366 of the lower connector 310a, and the stopper 227 of the upper connector 310b is in contact with the rear end surface 322 of the lower connector 310a.

Further, the fixing band 370 is disposed immediately above the fixing band insertion hole 346 of the upper layer connector 310b, and the fixing band side portion 371 (precisely, the tip of the fixing band protrusion 379) abuts the side surface 328 of the upper layer connector 310b ( Sliding).
Then, the fixed cover 270 is pushed downward as indicated by an arrow 301.

(Fixed)
29, the fixing band 370 is pushed downward, inserted into the fixing band insertion hole 346 of the upper connector 310b and the fixing band insertion hole 346 of the lower connector 310a, and further, the band fixing band locking hole of the power distribution board 380. 386.
At this time, the fixed band protrusion guide surface 377 of the fixed cover 270 descends while being guided by the fixed band insertion hole guide surface 347 of the upper layer connector 310b and the lower layer connector 310a, and comes off the fixed band insertion hole guide surface 347. The situation is repeated. Similarly, the fixed band protrusion guide surface 377 of the fixed cover 270 descends while being guided by the locking guide surface 387 of the power distribution plate 380 and is repeatedly removed from the locking guide surface 387.

(When fixed)
30 and 31, when the fixed band 370 comes into contact with the fixed band top 372, the lowering of the fixed band 370 stops, and the fixed band protrusion locking surface 378 is brought into contact with the locking surface 388 of the power distribution plate 380. Lock (fixed). Further, the fixing band protrusion locking surface 378 is also locked to the locking surface 348 of the upper connector 310b and the locking surface 348 of the lower connector 310a.

(Function and effect)
As described above, the backlash filling structure 300 (Embodiment 3) pushes the fixing band 370 into the fixing band insertion hole 346 of the upper connector 310b and the fixing band insertion hole 346 of the lower connector 310a. By inserting downward into the band fixing band locking hole 386 of the power distribution plate 380, the power distribution plate 380, the lower layer connector 310a, and the upper layer connector 310b are fastened and fixed in a state without "rattle". be able to.
At this time, since the fixing band 370 is “plug-in type” from the upper side to the lower side, the fixing operation is facilitated and the production efficiency is improved.
Furthermore, since a connector can be added between the lower layer connector 310a and the upper layer connector 310b, three or more connectors can be easily and reliably stacked.
Furthermore, as with the backlash filling structure 100 (Embodiment 1), it is possible to detect holding of the female terminal 230 or intermediate insertion of the female terminal 230.

[Embodiment 4]
FIGS. 32 to 36 illustrate the backlash structure of the laminated connector according to the fourth embodiment of the present invention. FIG. 32 is a perspective view showing the members separated, and FIG. 34 is a front view showing a part of the member (connector and cover), FIG. 35 is a plan view showing a part of the member (connector and cover), and FIG. 36 is a part of the member (connector and cover). It is sectional drawing of the side view which shows a connector and a cover.

(Backlash structure of laminated connector)
In FIG. 32, a stacking type connector backlash structure (hereinafter referred to as “backlash structure”) 400 is installed on the power distribution board 490, the lower-layer connector 410 a installed on the power distribution board 490, and the lower-layer connector 410 a. It consists of an upper layer connector 410b.
That is, as will be described below, the backlash filling structure 400 includes a laminated lock 467 provided on the cover 460 instead of the laminated fixing lock 150 and the laminated lock locking protrusion 145 of the backlash filling structure 100 (Embodiment 1). (Laminated lock claw 466) and laminated lock hole 445 are provided. Therefore, the members (or portions) that are the same as or correspond to the members (or portions) of the backlash filling structure 100 may have the same last two digits and may not be described.
Since the lower layer connector 410a and the upper layer connector 410b have the same shape, the connector 410a will be described below. The present invention does not limit the number of stacked connectors. That is, one or more connectors may be further installed on the upper layer connector 410b.
Hereinafter, members constituting the backlash filling structure 400 will be described first, and then the backlash filling structure 400 will be described.

(connector)
33 to 36, the connector 410 a includes a housing 420, a female terminal 430 that is inserted into the housing 420, and a male terminal 439 that is insert-molded into the housing 420. Note that the female terminal 430 and the male terminal 439 are the same as the female terminal 130 and the male terminal 139 in the backlash filling structure 100 (Embodiment 1), respectively, and thus the description thereof is omitted. It may be different.

(housing)
The housing 420 is a substantially rectangular parallelepiped box, and an opening for allowing insertion of the female terminal 430 is formed in the front end surface 421. The terminal chamber can accommodate the female terminal 430 and the male terminal 439 protrudes therein. 423.
The lower surface 424 is provided with a stopper 427 on the rear end surface 422 and an L-shaped positioning projection 426 in a position close to the rear end surface 422 in a side view. A positioning claw 425 that protrudes in the direction opposite to the stopper 427 and is parallel to the lower surface 424 is formed at the tip (lower end) of the positioning protrusion 426.
Further, the upper surface 429 of the housing 420 is provided with a plurality of upper surface openings 443 in a slit shape on the front end surface 421 side, and a positioning projection intrusion groove 446 having a size that allows the positioning projection 426 to enter on the rear end surface 422 side. The edge on the front end face side of the positioning projection intrusion groove 446 is a positioning projection locking portion 447.
Furthermore, lock beaks 444 are provided on both side surfaces 428 of the housing 420, respectively.

(cover)
Further, similarly to the housing 120, a cover 460 that can be rotated (tilted) with a cover fold line 461 as a fulcrum is provided on the upper surface 429 of the housing 420. The cover 460 includes a cover surface portion 462, a terminal pressing portion 463, a cover arm portion 465, and a lock beak locking hole 464. A pair of laminated lock holes 445 is provided so as to sandwich the lock beak locking hole 464.
Further, a pair of laminated locks 467 are extended on the cover arm portion 465, and a laminated lock claw 466 is provided at the tip of the laminated lock 467. At this time, an imaginary line connecting the stack lock 467 and the stack lock hole 445 is perpendicular to the cover surface portion 462. The laminated lock claw 466 is parallel to the cover surface portion 462 and faces the other laminated lock claw 466. That is, the distance between the opposing laminated locks 467 is substantially the same (slightly larger) than the distance between the side faces 428, and the distance between the tips of the opposing laminated lock claws 466 is smaller than the distance between the side faces 428 ( Narrow).
Note that the lock beak 444 and the lock beak locking hole 464 need not be provided for the reason described later.

Accordingly, when the cover 460 is rotated (tilted) in the same manner as the cover 160 (Embodiment 1), the terminal pressing portion 463 enters the upper surface opening 443, and eventually the cover 460 comes into contact with the upper surface 429. The lock beak locking hole 464 is locked to the lock beak 444 and holds the female terminal 430 inserted to the proper position so that it cannot be pulled out. At this time, the stacking lock 467 is perpendicular to the lower surface 424, and the stacking lock claw 466 is positioned below the lower surface 424.
Similarly to the cover 160, whether or not the female terminal 430 is inserted to the proper position can be detected based on whether or not the cover 460 is in contact with the upper surface 429.

(Distribution board)
The power distribution plate 490 is a substantially rectangular plate body, and a notch groove 496 into which the positioning protrusion 426 can enter is formed on one end surface (hereinafter referred to as “rear end surface”) 492, and at the back of the notch groove 496. A stepped notch groove locking portion 495 is provided on the lower surface 494, and a locking range 497 having a narrow width is provided on the side surface 498 (see FIG. 32).

(Backlash structure)
FIGS. 37 to 41 illustrate the backlash filling structure of the laminated connector according to Embodiment 4 of the present invention. FIG. 37 (a) is a partial cross-sectional view showing a temporarily fixed state of the lower-layer connector. 37 is a side view, FIG. 37B is an enlarged sectional view of a part of the engaging portion between the lower-layer connector and the power distribution board in the temporarily fixed state, and FIG. 38 is the main fixing of the lower-layer connector. FIG. 39 (a) is a side view with a part in cross section showing the state, FIG. 39 (a) is a side view with a part in cross section showing a temporarily fixed state of the upper connector in the final fixed state, and FIG. Sectional drawing of the side view which expands and shows a part of latching part of the upper layer connector and lower layer connector in a state, FIG. 41 (a) is a front sectional view showing the fixed state of the upper connector (FIG. EE cross section of 0), FIG. 41 (b) is a front sectional view showing a part of the engaging portion between the upper layer connector and the lower layer connector in an enlarged view, and FIG. 41 (c) is a lower layer connector and power distribution. It is sectional drawing of the front view which expands and shows a part of latching | locking part with a board.

(Temporary fixing of the lower layer connector)
37 (a) and 37 (b), in the backlash filling structure 400, a lower layer connector 410a is placed on the power distribution board 490, and an upper layer connector 410b is placed on the lower layer connector 410a. Is done. At this time, the cover 460 of the lower-layer connector 410a is turned down, the lock beak locking hole 464 of the cover 460 is locked to the lock beak 444, and the terminal pressing portion 463 penetrates into the terminal chamber 423 (not shown). .
Then, the positioning protrusion 426 of the lower connector 410 a enters the notch groove 496 of the power distribution plate 490, and the positioning claw 425 formed on the positioning protrusion 426 is formed on the lower surface 494 at the back of the notch groove 496. Locked to the locking portion 495.
Further, the cover 460 is rotated in the direction indicated by the arrow 401 with the locking point between the positioning claw 425 and the notch groove locking portion 495 as the rotation center.

(Main fixing of the lower layer connector)
In FIG. 38, the lower surface 424 of the lower layer connector 410 a becomes parallel to the upper surface 499 of the power distribution plate 490 by the rotation of the lower layer connector 410 a in the direction of the arrow 401, and the stacking lock 467 is relative to the lower surface 494 of the power distribution plate 490. It is vertical. The laminated lock claw 466 is parallel to the lower surface 494 and is locked to the lower surface 494 in the locking range 497. That is, the lower layer connector 410 a is permanently fixed to the power distribution plate 490.
Since the cover 460 cannot be rotated (rise) by locking the laminated lock pawl 466 to the lower surface 494, the lock beak 444 and the lock beak locking hole 464 may be removed. At this time, the lower-layer connector 410 a is rotated in the direction of the arrow 401 while pressing the cover 460 against the upper surface 429.

(Temporary fixing of upper connector)
39 (a) and 39 (b), the upper connector 410b is placed on the lower connector 410a that is permanently fixed to the power distribution plate 490. At this time, the cover 460 of the upper-layer connector 410b is turned down, the lock beak locking hole 464 of the cover 460 is locked to the lock beak 444, and the terminal pressing portion 463 enters the terminal chamber 423 (not shown).
Then, the positioning protrusion 426 of the upper connector 410b enters the positioning protrusion intrusion groove 446 of the lower connector 410a, and the positioning claw 425 formed in the positioning protrusion 426 becomes the positioning protrusion formed in the positioning protrusion intrusion groove 446. Locked to the locking portion 447.
Further, it is rotated in the direction indicated by the arrow 402 with the locking point between the positioning claw 425 and the positioning protrusion locking portion 447 as the rotation center.

(Main fixing of upper layer connector)
40 and 41 (a), 41 (b) and 41 (c), the lower surface 424 of the upper connector 410b becomes the upper surface 429 of the lower connector 410a by the rotation of the upper connector 410b in the direction of the arrow 402. The stacking lock 467 of the upper connector 410b is parallel to the upper surface 429 of the lower connector 410a. The stacking lock claw 466 of the upper layer connector 410b is engaged with the stacking lock hole 445 of the lower layer connector 410a. That is, the upper layer connector 410b is permanently fixed to the lower layer connector 410a.
Since the cover 460 cannot be rotated (rise) due to the locking of the stacking lock pawl 466 to the stacking lock hole 445, the lock beak 444 and the lock beak locking hole 464 may be removed. At this time, the upper-layer connector 410 b is rotated in the direction of the arrow 402 while pressing the cover 460 against the upper surface 429.

(Function and effect)
As described above, the backlash filling structure 400 (Embodiment 4) is configured to double the locking between the positioning claw 425 and the notch groove locking portion 495 and the locking between the stacked locking claw 466 and the locking range 497. Due to the locking structure, the lower layer connector 410a is permanently fixed to the power distribution board 490, and further, the positioning claw 425 and the notch groove locking portion 495 are locked, and the laminated lock claw 466 and the laminated lock hole 445 are locked. Due to the double locking structure, the upper connector 410b is permanently fixed to the lower connector 410a. Therefore, the rattling of the three members of the power distribution plate 490, the lower layer connector 410a, and the upper layer connector 410b can be suppressed.
Further, since the structure is simple and small, downsizing is promoted and space saving is possible.
Furthermore, since a connector can be added on the upper layer connector 410b, it is possible to easily and reliably stack three or more connectors.
Further, similar to the backlash filling structure 100 (Embodiment 1), the female terminal 430 can be held or inserted halfway, and three or more connectors can be easily and reliably stacked.

[Disclosure of the Invention]
As is clear from the above description, the first to fourth embodiments disclose the following invention.
That is, a backlash structure of a laminated type connector having a power distribution board, a lower layer connector installed on the power distribution board, and an upper layer connector installed on the lower layer connector,
The lower layer connector and the upper layer connector have the same shape, and comprise a substantially rectangular parallelepiped housing having an open front end surface,
The lower surface of the housing is provided with a back-filled ridge protruding downward at a position close to the front end surface,
On both side surfaces of the housing, a laminated lock locking ridge projecting laterally at a position near the top surface of the housing, an upper end portion is installed below the laminated lock locking ridge, and a lower end portion is A stacking lock that protrudes downward from the lower surface of the housing is provided, and a stacking lock locking surface is formed at the lower end of the stacking lock;
The lower surface of the lower connector contacts the upper surface of the power distribution plate at a position close to the rear end surface and the backlash, and the laminated lock locking surface of the lower connector is locked to the lower surface of the power distribution plate. By doing so, the lower layer connector is permanently fixed to the power distribution board,
The lower surface of the upper layer connector is in contact with the upper surface of the lower layer connector at a position close to the rear end surface and the backlash ridge, and the stacking lock locking surface of the upper layer connector is the stacking layer of the lower layer connector. A loosely packed structure of a laminated connector, wherein the upper layer connector is permanently fixed to the lower layer connector by being locked to a lock locking protrusion.

Further, a power distribution plate, a lower layer connector placed on the power distribution plate, an upper layer connector placed on the lower layer connector, and a fixing for fastening the power distribution plate, the lower layer connector and the upper layer connector A backlash structure of a laminated connector having a band,
The fixed band is a substantially U-shaped plate member formed of a flexible material, and connects the pair of opposed fixed band side portions and one end of the fixed band side portions to each other. A plurality of serrated fixing band protrusions are provided on the surfaces of the fixing band sides facing each other,
The power distribution plate is formed with a fixed band locking hole having a size through which the side of the fixed band can penetrate, and the fixed band locking hole protrusion to which the fixed band protrusion can be locked. Is provided,
The lower layer connector and the upper layer connector have the same shape, and comprise a substantially rectangular parallelepiped housing having an open front end surface,
Band insertion arms are provided on both side surfaces of the housing, respectively, and the band insertion arm has a fixed band insertion hole having a size that allows the side of the fixed band to be inserted downward,
The fixed band side portion is inserted and fixed downward into the fixed band locking hole of the power distribution board via the fixed band insertion hole of the upper layer connector and the fixed band insertion hole of the lower layer connector. When the top of the band comes into contact with the upper surface of the upper connector, the fixed band protrusion is locked to the fixed band locking hole protrusion of the power distribution plate so that it cannot be pulled out upward. A backlash filling structure for a laminated connector, wherein a power distribution board, the lower layer connector and the upper layer connector are fastened together.

Furthermore, a backlash structure of a stacked type connector having a power distribution board, a lower layer connector installed on the power distribution board, and an upper layer connector installed on the lower layer connector,
The lower layer connector and the upper layer connector have the same shape, and comprise a substantially rectangular parallelepiped housing having an open front end surface,
A positioning protrusion protruding downward is provided on the lower surface of the housing, and a positioning claw is formed at an end of the positioning protrusion,
On the upper surface of the housing, there are provided a positioning protrusion intrusion groove that is large enough to allow the positioning protrusion to enter, and a cover that can rotate at a folding line, and the positioning protrusion can be engaged with the positioning pawl. A protrusion locking part is formed,
A notch groove of a size that allows the positioning protrusion to enter is formed on one end face of the power distribution plate, and a notch groove locking portion that can lock the positioning claw is formed in the notch groove,
The cover is provided on a substantially rectangular cover surface portion, a side edge of the cover surface portion, a cover arm portion perpendicular to the cover folding line and the cover surface portion, and a stack formed on the cover arm portion. A laminated lock extending from the cover arm; and a laminated lock claw formed at a tip of the laminated lock and having a size capable of being locked in the laminated lock hole. A virtual line connecting a hole and the laminated lock claw is perpendicular to the cover surface portion,
The positioning protrusion of the lower layer connector penetrates into the notch groove of the power distribution plate, and the positioning claw of the lower layer connector is locked to the notch groove locking portion of the power distribution plate, and The cover is rotated so that the cover surface portion of the lower connector contacts the upper surface of the lower connector, and the laminated lock claw of the lower connector engages with the lower surface of the power distribution plate, thereby The connector is permanently fixed to the power distribution board,
The positioning protrusion of the upper-layer connector enters the positioning protrusion intrusion groove of the lower-layer connector, and the positioning claw of the upper-layer connector is locked to the positioning protrusion locking portion of the lower-layer connector, The cover of the upper-layer connector is rotated so that the cover surface portion of the upper-layer connector abuts on the upper surface of the upper-layer connector, and the laminated lock claw of the upper-layer connector is in contact with the laminated lock hole of the lower-layer connector. A loosely packed structure of a stacked type connector, wherein the upper layer connector is permanently fixed to the lower layer connector by being locked.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each of those components and combinations thereof, and such modifications are also within the scope of the present invention.

  Since the present invention is as described above, the present invention can be widely used as a backlash filling structure for laminated type connectors installed in various devices.

100: Backlash structure of stacked type connector (Embodiment 1)
110a: Lower layer connector 110b: Upper layer connector 120: Housing 121: Front end surface 122: Rear end surface 123: Terminal chamber 124: Lower surface 125: Ragged ridge 126: Positioning protrusion 127: Stopper 128: Side surface 129: Upper surface 130: Female Terminal 131: Cable connecting portion 132: Cable 139: Male terminal 143: Upper surface opening 144: Lock beak 145: Laminated lock locking protrusion 146: Positioning groove 150: Laminated locking lock 151: Laminated locking fixing portion 152: Laminated locking arm Portion 153: Lamination lock engagement surface 154: Lamination lock engagement portion 160: Cover 161: Cover folding line 162: Cover surface portion 163: Terminal pressing portion 164: Lock beak engagement hole 165: Cover arm portion 190: Power distribution plate 192: Rear end face 193 Distribution plate locking surface 194: bottom surface 196: positioning hole 198: side 199: upper surface 200: play reduction structure of a laminated type connectors (Embodiment 2)
201: Arrow 202: Arrow 203: Arrow 210a: Lower layer connector 210b: Upper layer connector 220: Housing 221: Front end surface 222: Rear end surface 223: Terminal chamber 224: Lower surface 226: Positioning protrusion 227: Stopper 228: Side surface 229: Upper surface 230: Female terminal 239: Male terminal 243: Upper surface opening 244: Lock beak 246: Positioning groove 260: Cover 261: Cover folding line 262: Cover surface portion 263: Terminal pressing portion 264: Lock beak locking hole 265: Cover arm portion 266: Cover surface groove 270: Fixed cover 271: Fixed cover band 272: Fixed cover bottom 273: Fixed cover side 274: Fixed cover top 275: Fixed cover band fixing 276: Fixed cover bottom beak 277: Fixed Cover bottom beak 278: Fixed cover top beak 279: Fixed cover top beak 290: Power distribution plate 292: Rear end face 294: Bottom face 296: Notch groove 297: Fixing hole 300: Backlash structure of stacked type connector (embodiment) 3)
301: Arrow 310a: Lower layer connector 310b: Upper layer connector 320: Housing 321: Front end surface 322: Rear end surface 323: Terminal chamber 324: Lower surface 326: Positioning boss 327: Stopper 328: Side surface 329: Upper surface 330: Female terminal 339: Male terminal 343: Upper surface opening 344: Lock beak 345: Band insertion arm 346: Fixed band insertion hole 347: Fixed band insertion hole guide surface 348: Fixed band insertion hole locking surface 349: Fixed band insertion hole protrusion 360: Cover 361 : Cover fold line 362: Cover surface portion 363: Terminal pressing portion 364: Lock beak locking hole 365: Cover arm portion 366: Positioning groove 370: Fixed band 371: Fixed band side 372: Fixed band top 377: Fixed band protrusion Guide plane 3 8: Fixed band protrusion locking surface 379: Fixed band protrusion 380: Power distribution plate 381: Upper surface 385: Positioning hole 386: Fixed band locking hole 387: Locking guide surface 388: Locking surface 389: Fixed band locking hole protrusion 400: Backlash structure of stacked type connector (Embodiment 4)
401: Arrow 402: Arrow 410a: Lower layer connector 410b: Upper layer connector 420: Lower layer housing 420a: Upper layer housing 421: Front end surface 422: Rear end surface 423: Terminal chamber 424: Lower surface 425: Positioning claw 426: Positioning protrusion 427 : Stopper 428: Side surface 429: Upper surface 430: Female terminal 439: Male terminal 443: Upper surface opening 444: Lock beak 445: Laminated lock hole 446: Positioning protrusion intrusion groove 447: Positioning protrusion locking portion 460: Cover 461: Cover bending Line 462: Cover surface portion 463: Terminal pressing portion 464: Lock beak locking hole 465: Cover arm portion 466: Laminated lock claw 467: Laminated lock 490: Power distribution plate 492: Rear end surface 494: Lower surface 495: Notch groove locking portion 496 : Ketsumizo 497: locking range 498: side 499: top

Claims (4)

A power distribution plate, a lower layer connector placed on the power distribution plate, an upper layer connector placed on the lower layer connector, and a fixed cover for fastening the power distribution plate, the lower layer connector and the upper layer connector; A backlash structure of a laminated type connector having
The fixed cover is formed in a substantially U shape by a flexible material, and includes a fixed cover band portion, a fixed cover bottom portion, a fixed cover side portion, and a fixed cover top portion that are successively connected, and the fixed cover top portion. Is provided with a fixed cover band fixing portion for fixing the fixed cover band portion so that the fixed cover band portion can be inserted and removed, and a fixed cover bottom beak is provided on a surface of the fixed cover bottom portion facing the fixed cover top portion, A fixed cover top beak is provided on a surface of the fixed cover top facing the fixed cover bottom,
The power distribution plate is provided with a cutout groove having a size that allows the fixed cover bottom beak to enter,
The lower layer connector and the upper layer connector have the same shape, and comprise a substantially rectangular parallelepiped housing having an open front end surface,
On the upper surface of the housing is provided a positioning groove of a size that allows the fixed cover top beak to enter,
The fixed cover bottom beak enters the cutout groove of the power distribution plate, and the fixed cover top beak enters the positioning groove of the upper connector, and the fixed cover band part is the fixed cover band fixing part. A stacked type connector play structure, wherein the fixed band is fastened to the power distribution plate, the lower layer connector, and the upper layer connector. The cover provided on the housing is provided with a cover surface groove having a size that allows the fixed cover top beak to enter,
The distribution board is provided with a fixing hole of a size that allows the fixed cover bottom beak to enter,
The backlash filling structure for a stacked type connector according to claim 1, wherein the fixed cover top beak enters the cover surface groove and the fixed cover bottom beak enters the fixing hole. The lower surface of the housing is provided with a stopper protruding downward at the position of the rear end surface, and a positioning protrusion protruding downward between the front end surface and the stopper,
The distribution board is provided with a positioning hole of a size that allows the positioning protrusion to enter near one end face,
The positioning protrusion can enter the positioning groove;
The stopper of the lower layer connector abuts one end surface of the power distribution plate, and the positioning protrusion of the lower layer connector enters the notch groove of the power distribution plate,
2. The stopper of the upper connector contacts the rear end surface of the lower connector, and the positioning protrusion of the upper connector penetrates into the positioning groove of the lower connector. The backlash structure of the described multilayer connector. Both sides of the housing are each provided with a locking beak protruding sideways,
The upper surface of the housing is provided with a cover that can be rotated at a cover folding line,
The cover is provided on a substantially rectangular cover surface portion, a terminal pressing portion provided on the cover surface portion in a virtual plane perpendicular to the cover folding line, and a side edge of the cover surface portion, and the cover folding line And a cover arm portion perpendicular to the cover surface portion, and a lock beak engaging hole formed in the cover arm portion and having a size capable of engaging the lock beak,
When the cover rotates and the cover surface part comes into contact with the upper surface of the housing, the terminal pressing portion penetrates into the housing through an upper surface opening formed on the upper surface of the housing, and the lock The beak filling structure of the multilayer connector according to any one of claims 1 to 3, wherein the beak is locked in the lock beak locking hole.

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