KR940008901B1 - Housing for flat power cable connector - Google Patents

Abstract

No content.

Description

Housing of flat electrical cable connector

1 is a perspective view of a connector according to the invention, showing a terminated flat cable disassembled from a housing and a strain relief member disassembled from the connector;

FIG. 2 is a perspective view of the housing and the strain preventing member of FIG. 1 as viewed from the rear side. FIG.

3 is a longitudinal sectional view of the housing taken along line 3-3 of FIG.

4 is a perspective view showing that the cable prepared for the terminal is intended to be received for termination, showing an alternative form of contact for the terminal.

Figures 5a and 5b illustrate that the terminal is arranged with the insertion member of the terminal not shown prior to termination, and that the flat cable is a single conductor type and the terminal is integrated along the contacts.

6 and 7 illustrate the terminal of FIG. 1 terminated at a cable end.

8 and 9 are cross-sectional views taken along lines 8-8 and 9-9 of FIGS. 6 and 7 showing that the terminal grips the side edge of the cable end at termination.

10 to 12 are planar cross-sectional views respectively before and after securing each terminal to both housing connectors of FIG. 1 to the housing, and after the connectors are assembled.

13 and 14 show a separated and assembled state, in which the front cross-sectional view of the connector taken along lines 13-13 and 14-14 of FIGS. 11 and 12;

15 and 16 illustrate a strain relief member for termination of a migratory conductor flat cable for the relative axial spacing of separate terminals, individual housings and connectors, before and after inserting the terminal into each housing.

* Explanation of symbols for main parts of the drawings

12,260 housing 14 strain relief member

16,250,252 Terminal 18 Flat electrical cable

50,52: Strut 58,64: Counter Arm

72: slot 92: cavity

148: waveform portion 150, 170, 172: relief recess

The present invention relates to the termination of electrical connectors, and more particularly to terminating flat electrical cables.

Flat electrical cables, for example, are introduced in commercial applications for transmitting a current of 75 amps of nominal current, flat conductors having a width of one inch and a thickness of about 0.020 inches, and insulating coatings having a thickness of about 0.004 to 0.007 inches on each surface. The average thickness of the cable is 0.034 inches. Commercially acceptable introduction cables are double-conductor flat cables, which are a pair of parallel-plane conductor strips spaced in parallel to limit the power and return path for current transmission, with insulation around them. It is desirable for the terminals to provide housing means for connectors terminated for single or double conductor flat electrical cables. In addition, it is desirable to provide a means for preventing cable deformation as included in the connector.

It is also desirable for the connector housing to be provided with means for limiting the axial and vertical movement of the terminal in the housing.

The present invention includes a housing means for a pair of conversion adapter terminals terminated adjacent to each other with respect to one end of a flat electrical cable to define the electrical connector. Paired terminals and their housings may also be used with single conductor flat electrical cables, but are particularly suitable for terminating double conductor flat electrical cables. The terminals include contacts that extend forwardly from the cable end and extend forwardly from the mating surface of the housing for electrical connection or otherwise are exposed along the mating surface, the other cable connector, a header mounted on the printed circuit board, Corresponds to the terminal post of the current source, or contact means of other electrical appliances such as bus bars.

Each terminal consists of a pair of planar sections that cross and oppose each other, where each planar section has an arrangement in which the shear-shaped corrugations and the ralph recesses are alternately formed so that their ends are positioned relative to the major surface of the planar cable When a pair of flat plate portions are mutually compressed against a cable sandwiched between them, a plurality of strips are integrally formed in the cable by the arrangement of the sheared corrugated portions to assist the conductor of the flat cable. The corrugated portion is also pushed into the opposing release process by the newly sheared conductor strip, and is moved vertically along the electrical coupling surface defined as the vertical edge of the shear corrugated portion where the newly sheared conductor edges are adjacent to each other. Flat cable conductors form electrical connections.

All of the flat plate pairs at each terminal have a rear cable receiving terminal where they extend forward at some angle from a pair of bends axially spaced apart from each other, defining a cable receiving plot of known width. Extends forward at the end. Tab-shaped portions are formed at the end end of the cable and inserted through the table receiving slots of the terminals and then placed between the upper and lower plate portions of each terminal. Each pair of upper and lower plate parts are squeezed to each other by being rotated about a curved portion serving as an integral hinge, so that the shear wave shapes push the conductor strip of the cable forward to form a terminal end with respect to the cable. Done. The two-tab-shaped cable portion fits into a terminal slot no larger than the microgap formed by the inner edge of the pair of bends of each terminal. More importantly, the exposed axial conductor edges are elaborately formed to be adjacent edges facing outward with respect to the inner edge of the curved portion of each terminal. When the terminal plates are crimped together to terminate the cable, the inner bends that are already adjacent to the conductor edges along the cable slots are slightly deformed with respect to the conductor edges to enter the metal interior, and the outer bends are insulated along the adjacent lateral outer edges of the cable. By slightly deforming the sheath into the sheath, it acts as a stopper for holding the tab-shaped cable portion after termination, preventing the axial movement of the terminal relative to the cable and reducing the stress on the termination.

Terminals terminated with respect to the tab-shaped cable part are inserted into each opening part at the rear end of the housing member until the terminal is placed in each cavity and the contact is properly positioned along the housing mating face. The housing member of the connector of the present invention is preferably molded as an integrated member that precisely defines a terminal-proximate ledge of upper and lower pairs with precisely defined spacing. The paired proximal jaws allow each terminal to fit snugly in a vertical direction to each cavity, thereby minimizing the harmful effects of vibration on the termination and functioning by central ribs between the cavity parts, upper and lower housing covers. It also helps to connect the parts. This anti-strain member is secured to the rear housing end that defines the cable exit, which has a rear stop to ensure that the terminal is properly positioned in the axial direction in the housing and that the contact is positioned in the axial direction. Minimize axial movement to increase wear resistance of the contact surface.

The cable deformation preventing member of the connector according to the present invention is molded by integrally plastic as possible, and the upper and lower transverse struts are separated into two parts and coupled to one side end, and are flat from one side after termination by the terminal. Make sure it is inserted into the cable. The members each have a pair of opposing arms extending forwardly from each lateral end, which arms engage and engage the housing when moved forward along the cable and against the rear end of the housing. One of these latch arms is integrally joined to the integrally joined lateral end and the other arm is split horizontally and extends forward from the lateral ends of the upper and lower struts respectively at the split lateral ends. It consists of upper and lower arm parts. When the clasp upper and lower arm portions are firmly fixed to each other in the vertical direction by the locking recesses of the housing, and the deformation preventing member is tightly fitted to the flat cable disposed between the upper and lower struts, the curved portion Maintaining the integrity of the cable insulation being treated as the cable near-edge, in which case the cable is bent or subjected to external forces in the vertical direction to assume a vertical orientation.

It is an object of the present invention to provide a housing of a terminal terminated at one end of a flat electrical cable.

It is another object of the present invention to provide a terminal device which allows the provided housing to be used simultaneously with either single or double conductor flat electrical cables.

It is also an object of the present invention to provide a housing which enables the terminal to be fixed against vertical movement and axial movement therein.

It is also an object of the present invention to provide a strain relief member in which a terminated cable end is received from its rear side into the housing and then secured to the rear end of the housing.

It is also an object of the present invention to provide a strain relief member that fits snugly against a flat cable as an integrated member that is fastened to the housing.

The housing and the deformation preventing member according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, the connector 10 includes a housing member 12 and a backward cable outlet or strain relief member 14, wherein the strain relief member 14 is a pair terminated in a flat electrical cable 18. The terminal 16 can be built in. The other connector 20 is to be assembled with the connector 10 so as to incorporate a corresponding pair of terminals 22, which terminals 22 extend from the housing 26 to the rear end 24. And inserted into a corresponding sheet metal through hole of a printed circuit board (not shown). The terminal 22 also has a spring arm contact 28 which, when both connectors 10 and 20 are joined together, engages the spline 30 at the front end of the terminal 16 at its front end. Shows. The housing 12 has a number of front passages 32 in communication with the mating surface 34, each of which has a terminal 16 inserted into the housing member 12 from the rear end 36 and then a spline 30. ) Is placed. The housing 20 of the connector 20 forms a large cavity 38 in which a spring arm 28 is disposed, which is in front of the housing 12 of the connector 10 during assembly. A portion 40 is received and a spring arm 28 is received in the passage 32 to electrically couple each spline 30. The housing 13 has a pair of latch arms 42 along its side, which latch arms are engaged with the pair of corresponding engaging projections 44 of the housing 26 to secure both connectors. . The latch arm 42 has a back grip 46 that is deflected inward to facilitate release from the protrusion 44 upon disassembly of the connector.

1 and 2, the terminal 16 on the cable 18 is inserted into the rear housing end 36, and then the strain relief member 14 is moved from the side edge 48 to the flat cable 18. FIG. ) And then move along the front so as to be secured to the housing member 12 along the rear end 36. The deformation preventing member 14 has upper and lower struts 50 and 52 extending in the axial direction from the slightly spaced apart integrated cross-section 54 so that the cables 18 are evenly disposed therebetween. The side end portion 56 having the integrated cross section 54 is provided with a locking projection 60 facing inward while the first latch arm 56 extends forward. The side end portion 62 also has a pair of second latch arms 64 extending inwardly from the ends of the upper and lower struts 50 and 52 and having an inwardly engaging protrusion 66 and the protrusions being connected to the connector housing ( 12), it acts as a single latch arm. The housing member 12 includes a pair of locking recesses 70 along the outer surface 68 near the rear end 36, and upper and lower thin wall surfaces 71 are limited in the sky to prevent deformation. When the member 14 is fixed to the housing member 12, the locking projections 60, 66, 66 are received therein.

In assembling the housing member 12, the cable deformation preventing member 14 is disposed between the opposing surfaces 74 and 76 of the upper and lower struts 50 and 52 having the rounded rear edge 78 and the side ends ( A cable outlet or slot 72 is defined between the sidewalls 80, 82, 82 near 56, 62. The spacing between the sidewalls 80, 82, 82 is preferably chosen to be slightly smaller than the nominal width of the cable 18 to form a custom fit of the microinterference after assembly of the connector. In addition, preferably, the opposing surfaces 74 and 76 of the upper and lower struts 50 and 52 are fastened to the upper and lower main surfaces 84 and 86 of the cable 18 after assembly of the connector. The front facing surface 88 of the struts 50 and 52 shown in FIG. 1 acts as a rear limiting portion or stop which is joined by the terminal 16 after assembly of the connector, Rounded recess 90 shows the rearmost portions of terminal 16 received therein (FIGS. 13 and 14).

2 and 3, a pair of large cavity portions 92 extend from the rear housing end 36 to the stop face 93 facing the rear side to receive and insert the terminal 16 therein. . Paired upper and lower ledges 94 are defined axially along both sides of each cavity 92 between which terminals 16 are disposed, precisely selecting the spacing between opposing jaw surfaces. As a result, the terminal 16 has little vertical movement after assembling the connector and, in some cases, allows some tolerance for the final height of the terminal 16 terminated in the cable 18 (FIGS. 13 and 14 degrees). ). The integrally molded housing member 12 allows for some spacing between opposing jaw surfaces to be precisely controlled. The vertical boundary walls 92 between the cavities 92 do not allow the upper and lower cover portions 98, 100 of the housing 12 to be even slightly spread, thus spacing the opposing jaw surfaces of the inner pair. It can be kept constant.

The terminal 16 comprises an imprinted adapter member 102 which is disposed directly with respect to the cable surfaces 84 and 86, and also preferably an insertion member 104 which is fixed according to the cable-remote surface of the adapter member 102. The insertion member is made of a high content of copper to form a sheared edge of the cable conductor after termination and an airtight electrical coupling portion. 4 illustrates a pair of adapter members 106, which have blade-shaped contacts 108 of a type suitable for the termination of the terminal post of the power supply. Preferably, the terminal comprises an insertion member. However, the drawing does not show this insertion member to illustrate the longitudinal processing method. The cable 18 has a parallel spaced two-plane planar conductor member 110 covered by an insulating sheath, which also extends the middle portion 112 between the conductors 110. As shown, the cable 18 is provided by cutting the axial slop 114 backwards from the cable end along the cable center line, the slop 114 having a selected width, and by this slot a pair of tabs- Type cable portion 116 is defined. The rear end 118 of the adapter member 106 includes a pair of curved portions 120 and 122 connecting the upper and lower flat plates 124 and 126.

5a and 5b an alternative spherical example of the adapter member 128 is shown, which has two adapter cross-sections 130 with cable receiving slots formed between the paired bends 132 and 134, respectively. have. Adapter member 128 is integral with spline 138 across contact 136 and is similar to cable 14 of FIG. 4 and is a single conductor type having a pair of tab-shaped cable portions 142. Suitable for terminating cable 140. The tab-type cable portion 142 is inserted through the cable receiving slot until the cable portion 142 is paired and disposed between the lower plate portions 144 and 146. The upper and lower flat portions 144 and 146 limited in the horizontal direction are formed in such a manner that the front wave shaped portions 148 and the release recess 150 are alternately arranged, and the wave shaped portions 148 have a flat cable shape. It extends toward the lower main surface.

6 and 7, the representative terminal 16 has an adapter member 102 and upper and lower inserting members 104a and 104b, and the tab-type cable portion 52 provides a cable receiving slot 154. In FIG. It extends through and shows that it is disposed between the upper and lower plate portions 156 and 158 of the adapter member 102. The floor portions 160 and 162 of the corrugations 164 and 166 for shearing the upper and lower plate portions 156 and 158 are shown on the cable surfaces 84 and 86 before termination in FIG. 6, and in FIG. Shapes 164 and 166 shear the conductors of cable 18 and push these sheared conductor strips 168 into opposing relief recesses 170 and 172 to be placed into respective holes 178 of insertion member 104. The upper and lower waveform couplers 174 and 176 are repeatedly engaged with each other. In FIG. 7, the conductor edges sheared are electrically coupled with the vertical wall surface which simultaneously defines the longitudinal side wall of the corrugated portion 180 and the hole 178 adjacent thereto, so that the upper and lower inserting members 104a and 104b are formed. As a result, the waveform 180 is repeatedly moved in the lateral direction. The corrugated coupling portion may be preferably divided by staking, and the insertion member is also staked along the outwardly facing surface of the corrugated portion 180 so that the stored energy is distributed to the corrugated coupling portion so that the conductor edge is sheared with the insertion member. An electrical connection with improved airtightness is formed therebetween.

8 and 9 show that the terminal 16 is secured relative to the side edges of the tab-shaped conductor portion, in the longitudinal back and forth state. Inner and outer curvatures 182 and 184 define a cable number slot between opposing edges 186 and 188 thereof. The cable 18 is provided as shown in FIG. 4 by cutting the slot 190 along the cable center line, whereby the conductor 192 is sheared and extends along the sheared edge 194, which is then paired. The intermediate strip portion 200 is defined between the conductors. When the upper and lower plate portions of the adapter member are pressed together as shown in FIG. 7, the metals of the curved portions 182 and 184 are slightly deformed and extruded simultaneously with respect to the conductor edge 194 and the lateral cable edge 198 so as to be in the 202 position. While pressing the conductor metal of 204, the insulating material 196 at the 204 position is pressed to fix the tab-type cable part 52 tightly, and to constitute the axial stop means of the terminal 16 along the cable 18. will be.

10-12 illustrate the assembly of connectors 10 and 20. The terminal 16 is terminated with respect to the tab-shaped cable portion 152 that has staked the wave coupler as indicated at 206. The cable deformation preventing member 14 is inserted onto the cable 18 from the side edge 48 of FIG. In FIG. 11, the terminal 16 is inserted into the cavity 92 of the housing member 12 in which the spline 30 is in the passage 32, and the deformation preventing member 14 has a locking recess ( It is caught by the housing member 12 by the engaging projection 66 of the 70, the terminal 22 is fixed to the housing member 26 of the connector 20 and the connection 28 is arranged across the cavity 38 The post portion 24 extends outwardly from the housing member 26. In FIG. 12, the connectors 10 and 20 are hooked to each other, and the engaging surfaces 210 and 212 of the latch arm 42 and the protrusion 44 have a slight inversion angle for vibration resistance. The front portion 40 of the 12 is received in the cavity 38 of the housing member 26 and the spring arm contacts 28 of the terminal 22 are repeated upwards and downwards along the terminals of the terminal 16. It is electrically connected to the spline 30.

13 and 14 show the connectors 10 and 20 to be assembled, wherein the spline 30a having a downward angle and the spring contact arm 28a which is deflectable upward are electrically connected to each other. The cable deformation preventing member 14 is formed while limiting the cable outlet to the proper position. The cable 18 is fastened between the opposing surfaces 74 and 76 of the upper and lower struts 50 and 52, and the recess 90 is provided. The curved portion 184 of the terminal 16 is disposed.

15 and 16 illustrate alternative configurations in which terminals 250 and 252 are terminated at the ends of each cable portion 254 and 256 including the individual conductors of double conductor cable 258. FIGS. Each housing member 260 is for terminals 250 and 252, and each cave deformation preventing member 262 is disposed at the rear end of the housing member 260. The illustrated configuration spaces the connectors 264 and 266 to provide power and return paths formed by the individual conductors of the cable.

Many variations of the spherical example of the invention described so far are possible without departing from the spirit and claims of the invention.

Claims (10)

Having a housing member arranged incorporating the terminal end of the terminal relative to one end of the flat electrical cable, the terminal being arranged with the contact of the exposed terminal along the mating surface where the terminal is assembled with a corresponding contact of another electrical appliance; A housing, comprising a cavity having a cavity for inserting and receiving a terminal terminated at an end of a flat cable in a state in which the housing is in communication with a rear end of the housing member, the rear facing surface providing a front stop of the terminal. And a front passageway, in which the contact portion extends to the mating surface, the rear strain relief member inserts the terminal into the housing cavity and is then secured to the rear housing end, the rear member being the upper and lower struts. Slots between members, the width of which is approximately equal to the width and height of the flat cable The rear member has a height and also defines a front facing motion surface corresponding to the front facing stop surface corresponding to the rear facing stop surface of the terminal so that the terminal is connected to the housing with the flat cable extending through the slot of the rear member. And a dielectric material which is held in contact with the rear housing end with the flat cable from the terminal end of the terminal to the rear, so that the terminal part is protected from the cable torque associated with the housing member. 2. The spiral rear member of claim 1, wherein the rear member is divided into the upper and lower struts and coupled to the coupling portion at the first side end portion and integrally coupled at the second side end portion in a separated state. And the upper and lower struts are terminated at one end of the flat cable and pressed against the upper and lower main surfaces of the flat cable at the rear side of the terminal so that the upper and lower struts are inserted from the side edges of the cable. housing. 3. The rear member according to claim 2, wherein the rear member extends forward from the first side end and has a first latch arm having a first catching means at the front end, and forward from the upper and lower struts of the second side end. And a second latch arm having a second latch means at each front end thereof, the second latch arm being configured as a pair of mutually cooperated latch arms opposed from the first latch arm, the housing The member has first and second latching means of the first and second latch arms where the rear member is proximate the rear end along its side wall when the rear member is forced along the planar cable and in the forward axial direction against the rear housing end. And a corresponding catching means for engaging the engagement with the rear member to secure the rear member to the housing member and to hold the terminal to the housing member. Housing characterized in that. 4. The housing as claimed in claim 3, wherein one of the corresponding catching means prevents the movement of the paired interlocking second latch arm relatively after the latching operation. 4. The method of claim 3, wherein the first and second locking means comprise a locking protrusion extending relatively toward each other, the protrusion defining a rearward facing locking surface, the corresponding locking means receiving the locking protrusion when locking. And a locking recess facing outwardly in a lateral direction defining a front facing locking surface corresponding to the rear facing locking surface, such that the rear member is fixed to the housing member. 6. The latching system of claim 5, wherein the rearward facing surface is outwardly at a slight angle and the frontward facing surface is inwardly at a slight angle such that the latching system defined by the rear member and the housing member secures the latch arm laterally. And the stress applied by the flat cable terminated thereby prevents the catch from being released when forcing the rear member back from the housing member. The method of claim 2, wherein the cable outlet is defined by opposing surfaces of the spaced upper and lower struts to contact the upper and lower major surfaces of the flat cable after assembly, and the rear member is fixed to the housing member. A housing characterized in that it is in contact with the side edge portion of the flat cable after assembly by the inward facing surface defined in the engaging portion and the second side end portion of the first side end portion. 8. A housing according to claim 7, wherein the rear edges of the opposing surfaces of the upper and lower struts are rounded. 2. The terminal of claim 1, wherein the terminal consists of a pair of separate terminal members terminated in each tab-shaped portion of the flat cable, and the cavity consists of a pair of cavities for each paired terminal member. The housing member is a center for inserting a pair of terminals into the pair of cavities and forming an insulating portion between the separated terminals, thereby connecting the upper and lower cover portions of the housing member laterally from the center thereof. A boundary wall is provided between each of the cavities so that the upper and lower cover portions maintain a defined space spaced laterally along the rear end. 10. The terminal according to claim 9, wherein the paired upper and lower jaws are defined axially along the inner surfaces of the upper and lower cover portions defining the pair of cavities such that the terminal is inserted into the cavity and then the top and Adjacent to the lower surface, the pair of jaws are disposed at both side ends of the respective cavities, and the upper and lower jaws have opposing surfaces spaced at precise intervals approximately equal to the nominal vertical height of the terminal, Wherein the housing member maintains a guaranteed effective vertical height for each cavity and the vertical movement of the separated terminals is precisely limited.

Images