JPH02284369A - One-piece plug socket - Google Patents

Abstract

PURPOSE: To provide a low-cost plug socket with a simple structure, higher compatibility and contact positioning by placing away a support component and a case held up by the support component, spacing them so that they could be interlocked, connecting them with a flexible joining component. CONSTITUTION: This plug socket is equipped with a support component 2 shaped like a frame or a plate and a case 3 with an inner casing 24 in which a contact hole 34 with an inserted contact, and the support component 2 and the case 3 supported by the component 2 are spaced at intervals f, g, i so that they could be interlocked and connected with the flexible connecting element 4. This invention realizes the low-cost socket with a simple structure, higher compatibility and contact positioning.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The invention relates to a case with a frame or plate-shaped support part and a case, in particular an inner case with a contact chamber for a plug-in contact arranged inside the case. and the support part is located for a counter-plug socket, e.g. in or beside a wall of the support, e.g. in or beside the case wall of a wheel bipartite safety box, the counter-plug socket being located in the other wall of the support. , for example in or beside a case wall opposite the case wall of a two-part safety box.

[Prior art]

Particularly for reasons of manufacturing technology, there is a demand for integrated specifications for plug sockets, that is, plug sockets. An integral design, even with a complicated shape, can be realized relatively simply and cost-effectively, for example by injection molding technology.

An integrated plug-in socket consists of two socket parts, preferably one behind the other in the plug-in direction, i.e.
For example, it includes a support part that serves to fix the socket by pushing it into a stationary bracket such as the socket part or a wall of the socket, and a case which accommodates the plug-in contacts.

There are industrial applications in which structural dimensions, measured in the insertion direction of the plug-in device or one of the plug-in device parts, ie the plug receptacle or the opposite plug receptacle, are not allowed to exceed certain structural dimensions. One of the insertion device parts or the insertion device may e.g.
An example of such an application is the positioning between a support consisting of the case wall of a protective box consisting of two half-shells. In such applications, problems arise not only from unavoidable manufacturing tolerances, but also from residual stresses or length changes caused by temperature changes.

If the carrier spacing is smaller than the structural dimensions of the plug or counter-plug device or insertion device, e.g. due to thermal expansion and/or tolerances, the corresponding socket or insertion device will not fit into it or stress problems will occur. occurs.

Similar problems arise when the distance between the supports becomes large for the same reasons as mentioned above. In such cases, due to the excessive dimensions between the stationary supports, the insert contacts and the corresponding counter insert contacts cannot be mated completely or in a specified manner, so that a reliable contact or the specified contact length of the insert contacts cannot be guaranteed. is not guaranteed.

[Problem to be solved by the invention]

The object of the invention is to provide a plug socket of the first-mentioned type with simple measures so that it automatically adapts to the load in the installed state.

[Means to solve the problem]

This problem is solved in that the support part and the case supported by the support part are separated, arranged at intervals to allow relative interlocking, and are connected to each other by flexible coupling elements. be done.

(Operation/Effects) In the configuration according to the present invention, in contrast to known plug sockets that are rigid as a whole, the supporting parts and the casing of the plug socket are made of a hard material and are made of a single piece, but they are not floating relative to each other. held, the spacing can be changed, play can be compensated and it is not adapted to existing installation situations.The supporting part and the casing can be moved relative to each other due to the integral molding of the plug socket from a solid material, especially plastic. Nevertheless, it has good stability.When the installed state of the plug socket is changed, for example due to temperature differences or stresses, changes in the position or the spacing of the supports supporting the plug socket occur, and these changes result in large stresses. The play is absorbed by the plug socket to compensate for it without occurring or compromising the interfit of the contacts.

When a relative displacement of the support part and the case from the normal position occurs, the coupling element is deformed and elastically preloaded, and the support part and the case tend to return to their normal position due to the preload.

Plastic changes in length due to temperature changes and is easily deformed due to residual stress, so the problem mentioned above is solved.
This occurs in particular when plastic is used for the plug socket and the support, for example the holding box that houses the plug socket. Regarding this problem, the solution according to the present invention provides an effective measure against expansion and contraction, and prevents over-extension and over-insertion.

Within the framework of the invention, the housing of the plug socket in the installation position is displaced from its normal position slightly away from the support part, so that a prestress is applied in the direction of the opposing plug,
The dimensions or the arrangement can be determined in such a way that a more reliable contact of the contact elements is ensured and rattling in the plug socket holding position is also noise-free.

Embodiments of the invention which are simple and inexpensive to manufacture and construct, which improve the fit of the plug socket and the positioning of the contacts, and which are advantageous in terms of manufacture and handling, are indicated in the subclaims.

The mutual mobility of the support part and the housing is determined by the arrangement and flexibility of the connecting elements formed by the connecting stays. With the arrangement of the connecting stay according to claim 6, relative movement between the housing and the supporting part and rotation of these parts is not possible or prevented. In the arrangement according to claim 10, twisting of the support part and the case with respect to each other is prevented.

〔Example〕

The present invention will now be described in detail with reference to preferred embodiments shown in the drawings.

The rigid plastic plug socket shown in (1) is a prismatic contact case or cover that is integrally connected by a support frame 2, which is an example of a substantially rectangular support component, and a flexible connection arm 4. Equipped with case 3. 0
The letter-shaped support frame 2 is provided with a flange portion 6 with an open corner 7 on the inside front extending obliquely to the central axis 5 of the plug socket 1, and is provided with a flange portion 6 with a cutout 7 which is open on the inner front side, and which is provided with a flange portion 6 which extends obliquely with respect to the central axis 5 of the plug socket 1 and has a flange portion 6 with an open corner 7, which is not shown in the drawings. Electrical connection wiring passes through this recess 7. From the center surface of the flange portion 6 that has shifted from the case 3, cut out a space 7.
Surrounding it is a rectangular frame stay 8 that also has a 0 shape.

The case 3 is box-shaped with two side walls 11 , 12 , a rear wall 13 and a lower bottom wall 14 remote from the support frame 2 . The bottom wall 14 connects the side walls 11.12 and the rear wall 13. At the end of the housing 3 facing the support frame 2, the side walls 11 to 13 are not connected to each other, and here the housing 3 is also open. In this embodiment, the support frame 2 and the case 3 have rectangular cross sections extending diagonally with respect to the central axis 5, forming narrow and wide sides of the plug socket 1. The length 'J3 and width B of the support frame 2 are the corresponding lengths of the case 3! and b, and the flange portion 6 is laterally spaced from the narrow and wide sides of the case 3 over its entire circumference. Each of the three coupling arms 4 is arranged on opposite sides, in this case the wide side. Each connecting arm 4 forms an angle arm 16
．． The arms 16 are configured in the form of a tape-type stay passing through the support frame 2 and protrude from the support frame 2, and are arranged at the outer edge of the support frame 2, parallel to each other and axial with respect to the central axis 5 on the wide side of the support frame 20. The arms 17 extend parallel to each other, while the arms 16 form an obtuse angle of approximately 110°.
and extends obliquely to the side walls 11, 12 of the case 3. In this embodiment, the arms 16, 17 are flat stays, but they may also be rounded, and the coupling arm 4 may be rounded as a whole with arcuate stays. The respective wide spacing between adjacent coupling arms 4 is designated by C, and the external coupling arms 4 end at the front and rear sides of the case 3. The width d of the coupling arm 4 thus corresponds to a small portion of the corresponding length of the wide side of the case 3.

From the starting point marked 18 of the inclined arm projecting from the side wall 11.12, the side wall 11.12 is connected to the support arm 2.
It extends in the direction by the dimension indicated by e. At the free end of the side wall 11.12 there is a side wall arm 19 projecting outwardly from the side wall 11.12. This side wall arm 19 engages at a distance l into a support frame transverse arm 21 projecting inwardly from a support frame longitudinal arm 22 extending laterally at a distance g from the side wall arm 19; It protrudes from frame 2. The distance of the support frame transverse arm 21 from the support frame 2 is greater than the sum of the thickness i of the side wall arm 19 and the distance f, and a distance j also exists between the side wall arm 19 and the support frame 2.

Slits 23, 2 for securing the plug socket 1 are formed on the front and rear sides of the support frame 2 by the grooves or abutting portions of the frame stay 8 and the flange portions 6.
3.1 is provided. Such a holding device can be constructed by fitting an opening edge of a case wall (not shown) into the slit 23.

Inside the case 3 an inner case in the form of a contact holding rail 24 is positioned by suitable holding elements. The contact holding rail 24 can be inserted through an opening 25 on the front side. The L-shaped holding stay 26 and the hook portion 27 serve as holding elements. The holding stay 26 is provided with a transverse arm 28 at its free end, and this arm 28 supports the contact holding rail 2.
4 and correspondingly dimensioned longitudinal grooves 29 (FIG. 1). A hanging arm 3 has a hanging nose 30 on the inside of the rear wall 13 and extends laterally and parallel to the rear wall.
1, which arm integrally projects from a wall section 33 cut out with an upper and lateral recess 32. The hanging nose 30 is attached to the contact holding rail 24 by the elasticity of the wall portion 33 at the insertion position of the contact holding rail 24.
The rail is caught in the slot 4 and fixed in the operating position. When the contact holding rail 24 is inserted, the latching nose 30 is bent by the inclined surface. When removing the contact holding rail 24 from the case 3, a certain force is applied to apply pressure to the latch nose 30, and the latch state is released again. A simple and quick replacement of the contact holding rail 24 is therefore ensured.

The contact holding rail 24 is provided with two vertical rows of vertical rectangular contact chambers 34 for contact elements (not shown). On the lower side of the contact chamber 34 are rail insertion holes 36 with a reduced cross section that are arranged in two rows on the bottom wall 14 and lined up with the case insertion holes 37.
It is separated by a shoulder 35 which follows. The right row of contact elements in FIG.
8. Similar retention of the left-hand row of contact elements extends from the left-hand wall 11, which projects from the horizontal lateral groove of the contact-holding rail 24 and the left side into the left-hand row of the contact chamber 34 and the corresponding lateral recesses of the contact elements placed therein. This is done by a protruding horizontal holding stay 38. Case insertion hole 3
7 is formed into a conical shape on the outside.

The support frame 2 and the housing 3 can be moved relative to each other by the belt- or tape-shaped connecting arm 4 by bending the connecting arm 4. Due to the cross-sectional design and the extension of the connecting arm 4, the support frame 2 and the case 3 are more or less elastically held together, and the elasticity allows them to return to their starting position.

In the position held by the slits 23, 23.1 of the support frame 2, the case 3 can be selectively moved, rotated and tilted relative to this frame not only along the central axis 5 but also laterally. , total mobility is guaranteed between the support frame 2 and the case 3. When the distance between the support frame 2 and the case 3 changes, only the arm 17 that extends mainly in the lateral direction with respect to the central axis 5 is bent, and the case 3
During transverse and rotational movements about the axis 5 of the device, only the arm 16, which extends primarily along the central axis 5, flexes. This mobility is specified by the distances 41f, g, i and can therefore be set arbitrarily by design. In this embodiment, the distance f between the side wall arm 19 and the support frame lateral arm 21 is smaller than the distance j between the side wall arm 19 and the support frame 2, and the reduction ratio of the heights of the support frame 2 and the case 3 from their respective starting positions is the expansion ratio. larger than

Due to the telescopic movement of the plug socket 1, as already mentioned, the plug-in connection of the housing 3 with a further plug socket, as the case may be, allows the support frame 2 and the housing 3 to be adjusted at respective intervals at specified distances or positions of the support relative to the housing 3. Can be adapted to.

Reference numeral 41 denotes a column that connects the arms of the support frame stay 8 to each other. Reference numeral 42 denotes a fixed arm for electrical connection wiring, such as a cable, which projects upward and is arranged near the front, and extends through the female hole 7 or the opening 25 to the contact element.

The plug socket 1-1, in particular its support frame 2, case 3 and connecting arm 4, are manufactured in one piece, preferably from plastic or metal, preferably by injection molding or die-casting.

Note that although numbers are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

FIG. 1 is a perspective view using a partial cross section showing an integrated plug socket according to the present invention, FIG. 2 is a side view of the plug socket, and FIG. 3 is a cross section taken along line III-II in FIG. FIG. 5 is a top view of the plug socket, FIG. 5 is a cross section taken along the line V-V in FIG. 4, and FIG. 6 is a rear view of the plug socket. (1)...Plug socket, (2)...
・Support parts, (3)... Case, (4)...
... Connecting element, (24) ... Inner case, (3
4)...Contact chamber for contacts. FIG, 1)-II[

Claims (1)

[Claims] 1. A support part (2) in the form of a frame or a plate, and a case (3), in particular an inner case (24) with a contact chamber (34) for a plug-in contact arranged therein. with a case, the support part (2) is located for a counter-plug socket, e.g. inside or beside the wall of the support, e.g. in or beside the case wall of a two-part safety box of a wheel, which counter-plug socket is located on the support inside or next to other walls of the body;
For example, an integral plug socket (one
), the support part (2) and the case (3) supported by the support part (2) are separated, and the distance (
Integral plug socket, characterized in that it is arranged for relative interlocking at f, g, i) and is interconnected by a flexible coupling element (4). 2. Integral plug socket according to claim 1, characterized in that the support part (2) and the case (3) are arranged movably relative to each other. 3. The integrated plug socket according to claim 1 or 2, characterized in that the support part (2) is arranged in such a manner that the case (3) can be tilted relative to each other. 4. The insertion direction of the insertion contact of the plug socket (1) is a straight line (5) passing through the support part (2) and the case (3),
4. Integral plug socket according to any of claims 1 to 3, characterized in that it is preferably parallel to the central axis. 5. Integral plug socket according to claim 4, characterized in that the coupling element is formed by a tape-like coupling stay (4) extending from the support part (2) to the housing (3). 6. Integral plug socket according to claim 5, characterized in that the connecting stay (4) extends substantially parallel to the straight line (5). 7. Integral plug socket according to claim 5, characterized in that the coupling stay (4) extends transversely to the straight line (5), preferably at right angles. 8. Integral plug socket according to claim 6 or 7, characterized in that the connecting stay (4) extends in the form of an angle, a step, an arch or a wave. 9. Integral plug socket according to any of claims 5 to 8, characterized in that the cross section of the coupling stay (4) is elongated, preferably rectangular. 10. The integrated plug socket according to claim 9, characterized in that the circumferential cross section of the plug socket (1) of the coupling stay (4) is longitudinally elongated or tape-shaped. 11. Claims 1 to 10, characterized in that on two opposite sides of the plug socket (1), in each case at least one coupling element (4) is arranged in mutually opposite positions.
An integrated plug socket as described in any of the above. 12. Integral plug socket according to any of claims 1 to 10, characterized in that the coupling element (4) is arranged on the outside of the plug socket (1). 13. The support part (2) is wider than the case (3),
and one of the angles formed by the connecting stay (4).
13. Claims 8 to 12, characterized in that one arm extends from the support part (2) parallel to the straight line (5) and the other arm (17) transversely or obliquely. Integrated plug socket. 14. Preferably, around the circumference of the support part (2) there are retaining elements, in particular oppositely arranged slits or grooves (23, 23, 1
14. Integral plug socket according to any of claims 1 to 13, characterized in that: ) is arranged. 15. The support part (2) is formed prismatically or preferably substantially rectangularly by a preferably U-shaped support frame, through which the case (3) passes, in the specified longitudinal direction (L , l) of prismatic shape, preferably coaxially arranged.
4. The integrated plug socket according to any one of 4. 16. that the casing (3) is entirely open on one side, preferably the narrow side, or that its shape and cross-section is larger than the inner casing (24), which is preferably formed by the contact carrier rail; An integrated plug socket according to any one of claims 1 to 15, characterized in that: 17. The integrated plug socket according to claim 16, characterized in that a hooking mechanism (27) or a fixing mechanism of the inner case (24) is provided inside the case (3). 18, Latching mechanism (27), Latching nose (30)
the latching nose (30) on a resilient or resiliently retained latching arm (31) portion projecting from the inside of the case (3), preferably from the side wall (13) remote from the opening (25). and the inner case (
24) is provided with a recess into which the latch nose (29) fits in its operating position.
Integrated plug socket as described in . 19. Integral plug socket according to any of claims 1 to 18, characterized in that the housing (3) is open on the side facing the support part (2). 20, characterized in that the case (3) is wrapped by the collar (22) of the support part (2) with a spacing (g) on at least two opposite sides of the edge facing the support part (2); 20. An integrated plug socket according to claim 19. 21, at the end of the case (3), preferably facing the support part (2), preferably on both sides of the opposing stops (2, 21, 22) in the part of the support part (2), each with a spacing (f).
, g and i), the integrated plug socket according to any one of claims 1 to 20, characterized in that the plug sockets are arranged side by side with spaces apart. 22, the stopper is an outer stopper or a stay (1
9), the two opposite side walls (1) of the case (3)
22. The integrated plug socket according to claim 21, characterized in that it is formed in parts 1, 12). 23. The opposing stopper is an outer stopper or a stay (
23. Integral plug socket according to claim 21 or 22, characterized in that it is formed by a collar (22) preferably formed by a vertical wall stay of the support frame (2).