CN2358581Y - Strain eliminator for cable connector combination - Google Patents

Abstract

The utility model provides a strain relief device of a cable electric connector assembly, comprising plastic rubber material a first strain relief element and a metal material second strain relief element, wherein, the second strain relief element is provided with a hollow form body part which is punched and formed by metal sheets and two matching side parts which extend from two opposite side edges of the body part. The body part is clamped and fixed on a cable part which is near the first strain relief element, and the matching part is fixed and contained between a stopping wall and a connecting post or a sheathing part of an insulation component under the insulating body of the utility model.

Description

The strain relief means of cable electric connector combination

The utility model provides a kind of strain relief means of cable electric connector combination, relate to the withdrawal force on the cable that can effectively opposing be put on electric connector, in case the strain relief means of the cable electric connector that principal vertical line cable front end separates with the conducting terminal of electric connector combination.

Cable electric connector combination generally includes strain relief means that electric connector and borrows plastic cement material and is connected in cable on this electric connector with plug-in type lining molding mode.Electric connector has insulating body and several and is fixed in conducting terminal in the insulating body in the tight fit mode, and cable to have several wires and its lead front end be to borrow specific device to extend in the insulating body of electric connector, wherein put on extracting on the insulating body that pulling force can be sent to electric connector via the strain relief means of plastic cement material but not be directly conducted on its each lead on the cable.Therefore, the strength of extracting cable will be unlikely line front end and connector terminals are separated.United States Patent (USP) the 4th, 383,810,5,100,341,5,609, disclosed some cable electric connectors combinations for No. 499.

Yet because the restriction of structure and material, the strain relief means of traditional plastic cement material can't be resisted this application of force usually effectively when bigger withdrawal force puts on the cable, firmly be connected and can't reach with the electric connector insulating body.When bigger withdrawal force put on the cable, the strain relief means of plastic cement material usually can be separated with the insulating body of electric connector, so that withdrawal force puts on the lead front end fully and directly, and caused the lead front end to separate with conducting terminal.At this moment, the electric signal by the transmission of this cable electric connector group will be interrupted.

Therefore, designing a kind of Improvement type strain relief means makes up aforesaid disadvantages affect and is necessary to reduce present cable electric connector, and this design is to resist the big withdrawal force that is applied to respect on the cable of electric connector, is connected in the cable ends of terminal to prevent the withdrawal force influence.

The purpose of this utility model is to provide the strain relief means of cable electric connector combination, is highly resistant to the big application of force and withdrawal force on the cable that puts on the combination of cable electric connector.

The purpose of this utility model is realized by following technical scheme: the combination of cable electric connector includes cable and electric connector, wherein electric connector includes the insulating part on the tool and the insulating body of insulating part down, interconnect and be located at the upper and lower covering of insulating body central part, and be fixed between upper and lower covering and be equiped with the long and short terminal of several tool contact sites and end.Cable includes several leads that is electrically connected at the conducting terminal end, it is characterized in that, on cable, be provided with strain relief means, it comprises: first strain removing element of plastic cement material and second strain removing element of metal material, this first strain removing element is provided with two button pieces and is fixed in the accepting groove set on the electric connector insulating body mounting blocks with interference, second strain removing element is formed by the metallic plate punching out, and has the cooperation sidepiece that the body and two that roughly is hollow form extends on the body relative side, the body clamping connection is fixed on the cable, and two cooperate sidepieces then to be housed in set joint pin or both two support sectors of one of socket part on fixed wall and the following insulating part.By the setting of metal and plastic cement strain removing element, make this application of force be sent to insulating body in the time of can being applied on the cable at big withdrawal force, to prevent the influence of withdrawal force to the lead front end of cable with respect to electric connector.

Compare prior art, the utlity model has following advantage: be highly resistant to the big application of force and withdrawal force on the cable that puts on the combination of cable electric connector with respect to electric connector, can effectively prevent the influence of withdrawal force to the lead front end of cable, and simple in structure.

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the three-dimensional exploded view of respectively forming member that the utility model comprises metal strain cancellation element element.

Fig. 2 is a subelement view of apparatus in the utility model.

Fig. 3 is the amplification stereogram of metallic strain relief means in the utility model.

Fig. 4 is the amplification stereogram of insulator in the utility model.

Fig. 5 is the amplification stereogram that insulator is equiped with terminal in the utility model.

Fig. 6 is the amplification stereogram of following keeper in the utility model.

Fig. 7 is the amplification stereogram of electrical connector in the utility model.

Fig. 8 is the amplification stereogram that the utility model is removed keeper, last covering, last insulating part and two spiral lock rear section component compositions.

Fig. 9 is the part combination amplification stereogram that the utility model is removed insulating part.

See also Fig. 1 and Fig. 2, cable electric connector combination 10 includes electric connector 12 and cable 14.Cable 14 comprises the lead 46 that several are extended by front end 44, and each bar lead 46 has a conductive line front end (not shown).Moreover the strain removing element 102 of plastic cement material is to be fixed on the cable 14 with plug-in type lining molding mode, is respectively equipped with locating piece 1022 on the front end dual-side of strain removing element 102.

Please consult Fig. 3 again, metal strain removing element 103 is formed by the sheet metal punching out, and it has the elliptoid body 104 of the hollow of being, and this body 104 is provided with two edges 1042,1044 that are formed with interface 1046 toward each other and betwixt.This strain removing element 103 also includes microscler and oppositely extends from the two opposite side walls place of body 104, simultaneously the cooperation sidepiece 105 that linearly aligns haply.Because two cooperation sidepieces 105 are one-body molded with body 104 in the punch forming process, therefore are provided with corresponding with it perforate 1052 in body 104 upper punches.

See also Fig. 1, electric connector 12 includes the upper and lower insulating part of making via plastic rubber ejaculate molding 90,91, the upper and lower covering made from metallic plate 82,84, the upper and lower keeper of making by plastic rubber ejaculate molding 48,50, the insulator of making by plastic rubber ejaculate molding 16, the connector of making by plastic rubber ejaculate molding 70, several long and short terminals 22,24 (only disclosing a terminal among the figure), the electrical connector 60 of borrowing metal sheet to make, shell 76 and two spiral locks 110 of making by metal sheet.

See also shown in Figure 4 again, insulator 16 is provided with long-channel 18 and the jitty 20 that extends and be interspersed along its fore-and-aft direction, be provided with protuberance 26 in the front side of insulator 16, the connection bump 32 that this protuberance 26 includes several parallel interval settings and connects with the groove 72 (Fig. 2 shows) of connector 70 corresponding settings.Insulator 16 further includes is located at the depression 34 of protuberance 26 sides with collecting company's fitting, in order to accommodate two pairs of installation portions 36 of two spiral locks 110, and vertical forming is in two pairs of erection columns 38 of 36 of installation portions, and this two erection column 38 also can be borrowed and stretch into hole 64 set on the keeper 48,50 and two keepers 48,50 are connected on the insulator 16.

Continuous see also shown in Figure 5, the front part of each conducting terminal 22,24 is equipped with contact site 30, and be arranged with end 40 in its rear lateral portion, wherein contact site 30 is in order to connecting the corresponding terminal of butt joint electric connector (not shown), and end 40 is then in order to the corresponding lead 46 of connection cable 14.Each terminal 22,24 further includes barb-like holding parts (not shown) so that terminal 22,24 is borrowed the interference engagement of 16 of holding parts and insulators and is fixed in the corresponding long and short passage 18,20 of insulator 16.

See also the detailed structure of following keeper 50 shown in Figure 6 again, last keeper 48 also has similar structure.Following keeper 50 is provided with several and accommodates groove 52, and these grooves 52 when down keeper 50 is connected on the insulator 16 be with it on the passage 18,20 of corresponding setting on same straight line, align.Be provided with first slit 54 of horizontally set in the following rear section of keeper 50, be horizontally arranged with second slit 56 on its front part, and be provided with the recessed district 51 of horizontally set in its middle body.There are six to extend the recessed interference pieces of distinguishing in 51 66 in the middle body of following keeper 50 is protruding upward.

Please refer to shown in Figure 7ly, electrical connector 60 comprises that six of tools interfere the substrates 62 in hole 65, and has extended upward several stab out end 68 on the both sides of the edge of substrate 62.

In the utility model when combination,, terminal the 22, the 24th is fixed on the insulator 16 according to mode shown in Figure 5, and 60 of electrical connectors are fixed in down in the recessed district of keeper 50 middle bodies by interfering piece 66 to place to be fixed in to interfere in the hole 65.Puncturing of part electrical connector 60 holds 68 to be according to specific needs and optionally by removing or be bent into non-perpendicular trend on the substrate 62.

Metal strain eliminates that element 103 is borrowed the clamping of body 104 and line front end 44 places of being fixed in cable 14.The part lead 46 of cable 14 installs on the end 40 of terminal 22,24 according to predetermined mode.Last keeper 48 borrows erection column 38 by interfering the top side that is assembled in insulator 16 in the mode of installing hole 64.Simultaneously, the end 40 of terminal 22,24 punctures the line end (not shown) of lead (shown in Figure 8) and electrically connects with it, and lead 46 can be placed in and accommodates in the groove 52 and end 40 will be placed in the slit 54,56.For clearer description, in Fig. 8, only have two leads 46 to be connected on two terminals 22,24,46 in other leads be connected to insulator 16 bottom sides the end 40 of the corresponding terminal 22,24 that is provided with.Last keeper 48 borrows erection column 38 by interfering the bottom side that is assembled in insulator 16 in the mode of installing hole 64, simultaneously the end 40 of terminal 22,24 will puncture the line of lead 46 terminal and with electric connection.In addition, last vertically extending down puncturing holds 68 will optionally puncture lead 46 according to particular demands on electrical connector 60 substrates 62, and makes these leads 46 connect short circuits.

Connector 70 is borrowed groove 72 to be butted on the connection bump 32 and move towards to move into two lateral sides 702,704 (as shown in Figure 2) until connector 70 along it and is contained in the set depression in protuberance 26 both sides 34 afterwards and be installed on the protuberance 26, and the connection bump 32 that the side wall surface of groove 72 is closely against protuberance 26 is fixed.Then, the shell 76 with four stators that extend back 78 will be fixed in 36 corresponding recesses 17 (as Fig. 2 and shown in Figure 8) that are provided with of insulator 16 installed in front portions and group is fixed on connector 70 and the insulator 16 by means of 782 buttons of kink after each stator 78.But the contact site 30 of shell 76 ELECTROMAGNETIC OBSCURANT terminals 22,24.At last upper and lower covering 82,84 is interconnected with cover cap outside upper and lower keeper 48,50, and insulator 16 rear side installation portions 36 will be retained on two coverings, 82,84 sidewalls 88 on the corresponding breach 89 (as Fig. 2 and shown in Figure 9) that is provided with.So, cable combination 14, metal strain cancellation element element 103, terminal 22,24, insulator 16, connector 70, shell 76, two keepers 48,50, electrical connector 60 and two coverings 82,84 will be formed the inferior assembly of cable electric connector combination.

Inferior assembly can be further be located at down projection 100 cross-under on insulating part 91 inner surfaces 911 at covering 91 corresponding four alignment holes 87 (as shown in Figure 2) that are provided with down by four, and is socketed on down by insulator 16 rear side installation portions 36 that set tool opening is connected to down on the insulating part 91 on the insulating part 91 inner surfaces 911 set locating pieces 94.Metal strain is eliminated in the two set support sectors 109 of the ccontaining respectively insulating part down in the both sides 105 of element 103 91, and this two cooperates lateral edges (not label) after sidepiece 105 to be usually on the fixed wall 99 set on the mounting blocks 92 of " U " type to terminating in down two of insulating part 91 rear ends.Two button pieces 1022 of the strain removing element 102 of plastic cement material will buckle on the mounting blocks 92 accepting groove 98 interior (as Fig. 2 and shown in Figure 8) that institute is provided with respectively respectively.110 of two spiral locks are accommodated in the installation portion 36 that is insulator 16, and wherein the wire portion 112 of spiral lock 110 is picked up the ears by shell two, and set hole 107 extends through (as Fig. 2 and shown in Figure 9) so that cable electric connector combination wire is connected on the butt connector on 762.At last, last insulating part 90 by respectively from upper and lower insulating part 90,91 extend that the joint pin 96 that is provided with is connected on the corresponding respectively socket part 97 that is arranged on upper and lower insulating part 90,91 and winding on insulating part 91 down, go up simultaneously and also protrude out four projections (not shown) on insulating part 90 inner surfaces and be fixed in four set on the covering 82 alignment holes 822 with button.

Cooperation via metal and plastic cement strain removing element 102,103, the bigger withdrawal force that puts on the cable 14 with respect to electric connector 12 can be transferred on the insulating body of electric connector 12 effectively, directly impose on the connecting portion of cable 14 and electric connector 12 terminals 22,24 to prevent this withdrawal force.In addition, if plastic cement strain removing element 102 is removed in the present embodiment, the strain removing element 102 of metal still can lean on the rigidity of itself effectively to resist withdrawal force.

Claims (7)

1. the strain relief means of cable electric connector combination, be located at the joint of cable and electric connector insulating body, put on the withdrawal force on the cable of electric connector with opposing, it is characterized in that: this strain relief means comprises: first strain removing element of plastic cement material and second strain removing element of metal material, this first strain removing element is provided with two button pieces and is fixed in the accepting groove set on the electric connector insulating body mounting blocks with interference mode, second strain removing element is formed by the metallic plate punching out, it has the cooperation sidepiece that the body and two that roughly is hollow form extends on the body relative side, the body clamping connection is fixed on the cable, and two cooperate sidepiece then to be housed on joint pin or two support sectors between the socket part set on fixed wall and the following insulating part.

2. the strain relief means of cable electric connector combination according to claim 1 is characterized in that: the substantially oblong-shaped attitude of the body of second strain removing element.

3. the strain relief means of cable electric connector combination according to claim 1, it is characterized in that: the body of second strain removing element is provided with two edges respect to one another, and is formed with docking port between these two edges.

4. the strain relief means of cable electric connector combination according to claim 1 is characterized in that: the cooperation sidepiece of second strain removing element is one-body molded and get with punch forming mode and body.

5. the strain relief means of cable electric connector combination according to claim 1, it is characterized in that: the body of second strain removing element is provided with two perforates, and each perforate all has the profile that roughly is complementary form with the configuration that cooperates sidepiece.

6. the strain relief means of cable electric connector combination according to claim 1, it is characterized in that: the cooperation sidepiece of second strain removing element roughly is cuboid.

7. the strain relief means of cable electric connector combination according to claim 1, it is characterized in that: the cooperation sidepiece of second strain removing element is aligned on the same straight line mutually.

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