DE102017110385A1 - Connector box with tool-free male insert disassembly - Google Patents

Abstract

The object of the invention relates to a connector box with tool-free male insert disassembly, which includes an outer housing 11, a base 12, a first and second insert insulating part 2, 3 and a contact part 4. A first mounting space 21 is provided on the first insert insulating part 2 and a second mounting space 31 is provided on the second insert insulating part 3. The contact part 4 is received in the resulting from the first and second mounting space 21, 31 mounting space. The first mounting space 21 protrudes into the second mounting space 31 in such a way that a latching part 32 is formed. On the inner wall of the locking part 32, a latching nose 322 is present. Adapted to this locking lug 322, a locking groove 42 on the contact part 4 is present. When mounting the contact part 4 with the locking part 32, the locking part 32 changes as follows: the wall thickness of the rear part changes from small to large and the wall thickness of the front part, ie the end of the locking lug 322, changes from large to small. This creates a guide during insertion and removal of the contact part 4, which reduces operating difficulties.

Description

scope of application

The invention relates to a connector box with tool-less male insert disassembly according to the preamble of claim 1. According to the International Patent Classification it belongs to the production of electrical connections.

State of the art

The connectors on the market usually include the body part, the contact part and the cover, and when assembled, they provide a connector plug or a connector box. However, in some of these connector plugs or connector boxes, the contact part can not be loosened again, or special tools are needed to release.

Because of this problem is already one Chinese Patent Application No. 201410845493.9 been registered. This patent discloses a mounting structure for a contact part of a connector and includes an insert insulating part, a contact part and an insert cover. At the insert insulation part is at least one receiving space (mounting space) for the contact part. The contact part has recesses (Rastnute) and each receiving space has elastically expandable bore ends. On the inner wall of the bore ends locking lugs are arranged. On the insert cover a construction is provided which is designed to match the insert insulation part. This construction includes insulation parts. When mounting the insulation part are restricted and can not expand to the outside. As a result, the latching lugs of the insert insulating part are firmly locked to the latching grooves of the contact part and the contact part is connected to the insulating part.

The present invention discloses a connecting structure with a contact part, wherein the installation and removal of the contact part is easily done without tools. However, it has been found in use in mass production that when staking the contact part of the insert insulation part greater force is required. This impairs the production process, so that an improvement of the construction is desired.

Content of the invention

The object of the invention is to provide an improved connector socket with tool-free male insert disassembly, in which the low efficiency in manual stake out of the contact part is improved by the connector.

This object is achieved by a connector box with tool-free male insert disassembly which includes a base, an outer housing and mounted in the outer housing first and second insert insulation parts and a contact part wherein the entire outer housing is mounted on the base and the base is connected to a machine, whereby the complete Connector box is attached with tool-less male insert disassembly; the first insert insulating part is connected to the second insert insulating part, and a mounting space is attached to the first insert insulating part, and, following the mounting space, there is a second mounting space on the second insert insulating part; the contact part is inserted into the mounting space formed by the first and second mounting space; the first mounting space protrudes into the second mounting space so that an elastically expandable locking part is formed by a latching lug is arranged on the inner wall of the locking part, wherein a latching groove of the contact part of the locking lug is opposite the contact part used; the shortest distance between the outer surface and the inner surface of the locking part results in the wall thickness of the locking lug, wherein during the assembly of the contact part in the locking part, the locking lug changes as follows in the mounting direction: the wall thickness of the rear part changes from small to large and the wall thickness of the front Partly, so the end of the latch, changes from large to small, whereby the insertion and removal of the contact part is facilitated, thereby reducing operating difficulties.

It is advantageous if the sectional surface of the latching lug is substantially trapezoidal, arcuate or stepped and the sectional surface of the latching groove is substantially trapezoidal, arcuate or stepped.

It is advantageous if the first and second mounting space bores with a common axis.

It is advantageous if the locking part consists of three extensions, with the extensions distribute evenly around the contact part on the circumference of the locking part.

It is advantageous if the first insert insulating part are connected to the second insert insulating part by a construction of fixing nose and fixing groove.

It is advantageous if at least one tab is attached to the first insert insulating member opposite the second insert insulating member, wherein on the tab on the side to the second insert insulation part a fixing lug is arranged and corresponding to the fixing lug the fixing groove is arranged on the second insert insulating part, wherein the second insert isolation part can be solved by lifting the tab.

It is advantageous if the first insert insulating part on the side to the second insert insulating part has a guide spring or guide groove to guide the bonding process.

Usually have latching lug and Rastnut vertical pass pages to guarantee the strength of the connection. For example, if the locking lug is square, so is the locking groove quadrangular, whereby the pressure side is perpendicular to the direction of force of the contact part, to avoid an ineffective detent. The inventor has discovered, through design analysis and several tests, that the force application of the connector box design of the present invention greatly improves with tool-less male insert disassembly in which the snap fit is in the second mounting space, thus limiting deformation of the extension. Contrary to the usual way of thinking, the inventor brought a guide construction on latching lug and locking groove along the direction of pressure of the contact part. Seen from the mounting direction of the contact part in the locking part, the rear part changes from small to large and the front part of large to small. The result is a guide surface that helps when running in and out. Compared with the prior art, the connector box according to the invention with tool-free male insert disassembly simplifies the insertion and removal by the guide structure. In addition, an adjustment of the detent is limited by the second mounting space, whereby a firm connection of the contact part is guaranteed. By these measures, the problem of low efficiency in the manual dismantling of the connector is solved.

figure description

1 shows the connector box with tool-less male insert disassembly

2 shows an exploded view of the connector box with tool-less male insert disassembly

3 shows the contact part with first and second insert insulating part in the assembly

4 shows the second insert insulating part

5 shows a sectional view of the second insert insulating part

6 shows the first insert insulating part

7 shows a sectional view of the connector box with tool-less male insert disassembly

execution

To explain the embodiment, figures are attached to the description. Decisive is the active principle of the invention and those skilled in the art will recognize further embodiments of the invention. The embodiment is only for understanding the invention and the figures are not drawn to scale.

The invention will be described with reference to the figures of an embodiment.

The connector box with tool-less male insert disassembly includes the 1 and 2 an outer casing 11 a pedestal 12 , a first and second insert insulating part 2 . 3 and a contact part 4 , At the base 12 There are threaded holes over the base 12 for example, by screws or other fasteners is attached to machines. Over a continuous space becomes the outer housing 11 with the pedestal 12 connected. Since the room can be rotated on its axis, the connector box is attached with tool-free male insert disassembly and the cable discharge direction on the outer housing 11 is adjustable. The contact part 4 becomes the second insert insulating part 3 and then the second insert insulating part 3 with the first insert insulating part 2 firmly connected. Subsequently, all three parts in the outer housing 11 used. The underside of the connector box with tool-less male insert disassembly is connected by cable (not shown in the figures) and the other side to a connector plug (not shown in the figures).

On the second insert insulating part 3 is a hole-like mounting space 31 present and to the side of the first insert insulation part 2 There are elastically expandable locking parts 32 attached (see 4 . 5 ). Each locking part 32 consists of three extensions 321 evenly along the circumference of each axis of the mounting space 31 are distributed. The extension 321 is formed on the inner wall, so that a latch 322 arises. The shortest distance between the outer surface and the inner surface of the locking part 32 gives the wall thickness of the latch 322 , In the mounting direction of the contact part 4 in the second insert insulating part 3 So when mounting the contact part 4 in the locking part 32 the catch nose changes 322 as follows: the wall thickness of the rear part changes from small to large and the wall thickness of the front part changes from large to small. This will be the contact part 4 during insertion and execution, which reduces operating difficulties.

The wall thickness of the rear part of the latch 322 changes from small to big. Thereby creates at the rear end a leading slope, bulge or rising tiered area. When inserting the contact part 4 in the locking part 32 contacts and presses the contact part 4 the rear end of the latch 322 , This creates a force that is approximately perpendicular to the direction of the extension 321 acts. By this force, the extension deforms 321 and the locking part 32 widens, creating a perfect installation of the contact part 4 is realized.

The wall thickness of the front part of the latch 322 changes from small to big. This creates at the front end a leading slope, bulge or falling stepped surface. When executing the contact part 4 from the locking part 32 contacts and presses the contact part 4 the front end of the latch 322 , This creates a force that is approximately perpendicular to the direction of the extension 321 acts. By this force, the extension deforms 321 and the locking part 32 widens, creating a perfect installation of the contact part 4 is realized. In the same way is between contact part 4 and the front end of the latch 322 used the same guide device. Between contact part 4 and the rear end of the latch 322 the same becomes the catch 322 suitable guide device used, whereby the same technical effect is achieved. This design minimizes the difficulty of operating and increases the operating efficiency.

As the 3 to 7 show, is the first mounting room 21 opposite the second mounting room 31 on the insert insulation part 2 , The first mounting room 21 is a bore and has a common axis with the second mounting space 31 , At the contact part 4 are Rastnute 42 suitable for the locking lugs 322 appropriate. The two ends of the Rastnute 42 also have a slope. This has the catch 322 a trapezoidal shape and the locking groove 42 also. The order of mounting is as follows: (S1) the contact part 4 will be in the second mounting room 31 introduced, resulting in the extension 322 deformed and the latching part 32 extended until the locking groove 32 reached their intended position. In this position, the extension deforms 322 back and the catch 322 snaps into the locking groove 42 one. (S2) the second insert insulating part 3 latched to the first insert insulation part 2 and the locking part 32 will be in the first mounting room 21 introduced, whereby no deformation is possible. As a result, the attachment of the contact part 4 realized. Understandably, the disassembly is done in reverse order.

The 2 and 6 show the connection from the first insert insulation part 2 with the second insert insulating part 3 by a fixing nose-fixing groove construction. In this embodiment, a tab 22 on the outer wall of the first insert insulating part 2 opposite the second insert insulating part 3 arranged. At the end of the tab 22 in the direction of the second insert insulating part 3 there is a fixing nose 221 , Accordingly, located on the second insert isolation part 3 a fixation groove 33 in the direction of fixing nose 221 , After the second insert insulation part 3 with the first insert insulating part 2 connected, the fixing nose can be 221 from the fixing groove 33 by lifting the tab 22 disconnect, whereby disassembly takes place.

The 7 shows the fixation of the contact part 4 through the first and second insert insulating members 2 . 3 , The first insert insulation part 2 can be connected directly to a socket by placing at the end of the first insert insulation part 2 Guide groove or guide spring are attached. As a result, the connection with the socket is guided and secured. This reduces the number of components.

The foregoing description represents only the embodiment, the adaptations and changes made on the basis of this invention are within the scope of this invention.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 201410845493 [0003]

Claims (7)

Connector box with tool-less male insert disassembly includes a socket 12 , an outer casing 11 and in the outer casing 11 mounted first and second insert insulating parts 2 . 3 and a contact part 4 , where the entire outer casing 11 on the pedestal 12 is mounted and the socket 12 connected to a machine, whereby the complete connector box is attached with tool-less male insert disassembly; the first insert insulating part 2 is with the second insert insulating part 3 connected and a mounting room 21 is at the first insert insulation part 2 attached and following the mounting room 21 located on the second insert insulation part 3 a second mounting room 31 ; the contact part 4 is in the first and second mounting room 21 . 31 incurred mounting space used; the first mounting room 21 protrudes into the second mounting room 31 in that an elastically expandable locking part 32 arises, characterized in that on the inner wall of the locking part 32 a catch 322 is arranged, wherein the contact part used 4 a locking groove 42 of the contact part 4 the latch 322 opposite; the shortest distance between the outer surface and the inner surface of the locking part 32 gives the wall thickness of the latch 322 , wherein during assembly of the contact part 4 in the locking part 32 the catch changes as follows in the mounting direction: the wall thickness of the rear part changes from small to large and the wall thickness of the front part, so the end of the locking lug 322 , changes from big to small, making the entry and exit of the contact part 4 is facilitated, thereby reducing operating difficulties. Connector box with tool-less male insert disassembly according to claim 1, characterized in that the cut surface of the latching lug 322 is substantially trapezoidal, arcuate or stepped and the cut surface of the locking groove 42 is substantially trapezoidal, arcuate or tiered. Connector box with tool-less male insert disassembly according to claim 1, characterized in that the first and second mounting space 21 . 31 Holes with a common axis are. Connector box with tool-less male insert disassembly according to claim 1, characterized in that the locking part 32 from three extensions 321 exists, with the extensions 321 evenly on the circumference of the locking part 32 around the contact part 4 to distribute. Connector box with tool-less male insert disassembly according to claim 1, characterized in that the first insert insulating part 2 with the second insert insulating part 3 by a construction of fixing nose 221 and fixing groove 33 are connected. Connector box with tool-less male insert disassembly according to claim 5, characterized in that the first insert insulating part 2 opposite the second insert insulating part 3 at least one tab 22 is attached, taking on the tab 22 on the side to the second insert insulating part 3 a fixation nose 221 is arranged and according to the fixing lug 221 is on the second insert insulation part 3 the fixing groove 33 arranged, wherein the second insert insulating part 3 by lifting the tab 22 solve. Connector box with tool-less male insert disassembly according to claim 1, characterized in that the first insert insulating part 2 on the side to the second insert insulating part 3 has a guide spring or guide groove to guide the connection process.

Images