CN102130395B - The covered electric cable maintaining part structure-improved of electric connector - Google Patents

Abstract

The invention discloses a kind of covered electric cable maintaining part structure-improved of electric connector, multiple covered electric cable maintaining part by some uniform intervals be formed at side by side card column on housing respectively adjacent define shaping, axially press downward to as benchmark with covered electric cable, each terminal retention portion and covered electric cable maintaining part upward opening are also axially shaping, the corresponding upper edge towards the side elevation of its adjacent covered electric cable maintaining part of two card columns being positioned at some card column outermost radial outside extends radially out the 3rd buckle, two side elevation upper edge of all the other card columns extend radially out first respectively, two buckles, adjacent first, two, covered electric cable maintaining part below three buckles forms wire rod retention groove, first, two snap into axile displacement distribution, when many covered electric cables are pressed into multiple covered electric cable maintaining part in the lump, same card column axially staggers by the position of adjacent both sides covered electric cable compressing distortion, therefore this process of press in can not make housing produce very large deformation, effectively limit the possibility that housing is destroyed.

Description

The covered electric cable maintaining part structure-improved of electric connector

Technical field

The present invention relates to a kind of electric connector structure, especially a kind of covered electric cable maintaining part structure-improved of electric connector.

Background technology

The covered electric cable maintaining part of existing electric connector structure is all adopt double-sided symmetrical buckle, sees shown in Fig. 7, Fig. 8.

The connector combining multiple electric wire is provided with terminal corresponding with many wires respectively and wire rod retention groove.These multiple wire rod retention grooves are multiple and row arrangement, when disposable installation many wires, because multiple wire rod retention groove is expanded simultaneously, housing can produce obvious buckling deformation.This obvious buckling deformation, then likely can cause Shell destruction in the operation of installing covered electric cable.

Further, in small multipolar connector, wish that the strain of buckle exceeds the small Processing limit of buckle hardly, and, because the thickness of covered electric cable covering portion is small, so also wish the distortion of covering portion hardly.Therefore, covered electric cable is to the press-in in wire rod retention groove, and must rely on the elastic changeable diameter of wire rod retention groove specially, when therefore covered electric cable is pressed into, clearly, housing likely can be destroyed in the buckling deformation of connector shell; On the contrary, if housing does not produce sufficient buckling deformation, just many covered electric cables can not be pressed in wire rod retention groove.

Summary of the invention

In order to overcome above-mentioned defect, the invention provides a kind of covered electric cable maintaining part structure-improved of electric connector, housing can not be made to produce excessive buckling deformation when being pressed into covered electric cable, with good productivity, many covered electric cables can be remained in multiple electric wire maintaining parts of electric connector respectively.

The present invention in order to the technical scheme solving its technical problem and adopt is:

A kind of covered electric cable maintaining part structure-improved of electric connector, multiple terminal retention portion of the corresponding electric connector of described covered electric cable maintaining part are formed in the housing of electric connector side by side, each crimp type terminal remains in terminal retention portion, described multiple covered electric cable maintaining part by some uniform intervals be formed at side by side card column on housing respectively adjacent define shaping, axially press downward to as benchmark with covered electric cable, each terminal retention portion and covered electric cable maintaining part upward opening are also axially shaping, axially press downward to as benchmark with covered electric cable, the corresponding upper edge towards the side elevation of its adjacent covered electric cable maintaining part of two card columns being positioned at some card column outermost radial outside extends radially out the 3rd buckle, two side elevation upper edge of all the other card columns extend radially out first respectively, two buckles, described adjacent first, two, covered electric cable maintaining part below three buckles forms wire rod retention groove, described first, two snap into axile displacement distribution, largest interval between this adjacent card column upper edge is more micro-than the external diameter of covered electric cable narrow and more micro-than the heart yearn of covered electric cable wide, therefore covered electric cable is pressed in the process of wire rod retention groove, covered electric cable is withheld urgent card column strain by adjacent card and is imported after in wire rod retention groove, card column resets into original attitude, owing to be positioned in middle some card columns first, two snap into axile displacement distribution, thus make second above same wire rod retention groove, the distribution that one buckle radially misplaces to axial, after in covered electric cable press-in wire rod retention groove this diametrically second, one buckle can reach the anticreep effect of covered electric cable from wire rod retention groove, when many covered electric cables are pressed into multiple covered electric cable maintaining part in the lump by stamping machine drift, same card column axially staggers by the position of adjacent both sides covered electric cable compressing distortion, therefore this process of press in not be used in and housing produces very large distortion also can be pressed into many coaxial cords in the lump, thus buckling of shells distortion phenomenon clearly when having evaded covered electric cable press-in, effectively limit the possibility that housing is destroyed.

As a further improvement on the present invention, described first buckle is away from described terminal retention portion, and described second buckle is near described terminal retention portion.

As a further improvement on the present invention, described 3rd buckle, with card column, axially isometric.

As a further improvement on the present invention, press downward to as benchmark with covered electric cable, described first, second and third is snapped in card column upper edge and forms a guiding inclined plane (buckle side) and wire rod restriction face (buckle bottom surface) towards radial expansion of adjacent covered electric cable maintaining part downwards, during covered electric cable press-in, guide in wire rod retention groove by guiding inclined plane, guarantee the smooth press-in of covered electric cable, also relatively slow down housing institute extrusion when covered electric cable is pressed into simultaneously.

As a further improvement on the present invention, press downward to as benchmark with covered electric cable, described wire rod restriction face is the tabular surface parallel with the bottom surface of described housing.

The invention has the beneficial effects as follows: owing to being positioned in middle some card columns, first and second snaps into axile displacement distribution, thus making the distribution that second, one buckle above same wire rod retention groove radially misplaces to axial, after in covered electric cable press-in wire rod retention groove, this second, one buckle diametrically can reach the anticreep effect of covered electric cable from wire rod retention groove; When many covered electric cables are pressed into multiple covered electric cable maintaining part in the lump by stamping machine drift, same card column axially staggers by the position of adjacent both sides covered electric cable compressing distortion, therefore this process of press in not be used in and housing produces very large distortion also can be pressed into many coaxial cords in the lump, thus buckling of shells distortion phenomenon clearly when having evaded covered electric cable press-in, effectively limit the possibility that housing is destroyed

Accompanying drawing explanation

Fig. 1 is using state stereogram of the present invention;

Fig. 2 is the decomposing schematic representation of Fig. 1;

Fig. 3 is the rearview of Fig. 1;

Fig. 4 is the decomposing schematic representation of Fig. 3;

Fig. 5 is using state schematic diagram of the present invention;

Fig. 6 is that the A of Fig. 5 is to schematic diagram;

Original technology using state schematic diagram that Fig. 7 contrasts for the present invention;

Fig. 8 is that the B of Fig. 7 is to schematic diagram.

Embodiment

Embodiment: a kind of covered electric cable maintaining part structure-improved of electric connector, multiple terminal retention portion 12 of the corresponding electric connector of described covered electric cable maintaining part 11 are formed in the housing 1 of electric connector side by side, each crimp type terminal 2 remains in terminal retention portion 12, described multiple covered electric cable maintaining part 11 by some uniform intervals be formed at side by side card column 3 on housing 1 respectively adjacent define shaping, axially press downward to as benchmark with covered electric cable, each terminal retention portion 12 and covered electric cable maintaining part 11 upward opening are also axially shaping, axially press downward to as benchmark with covered electric cable, two card column 3 correspondences being positioned at some card column outermost radial outside extend radially out the 3rd buckle 33 towards the upper edge of the side elevation of its adjacent covered electric cable maintaining part 11, two side elevation upper edge of all the other card columns 3 extend radially out first respectively, two buckles 31, 32, described adjacent first, two, three buckles 31, 32, covered electric cable maintaining part 11 below 33 forms wire rod retention groove 40, described first, two buckles 31, 32 one-tenth axile displacement distributions, largest interval between this adjacent card column 3 upper edge is more micro-than the external diameter of covered electric cable 4 narrow and more micro-than the heart yearn of covered electric cable 4 wide, therefore covered electric cable 4 is pressed in the process of wire rod retention groove 40, covered electric cable 4 is withheld urgent card column 3 strain by adjacent card and is imported after in wire rod retention groove 40, card column 3 resets into original attitude, owing to be positioned in middle some card columns 3 first, two buckles 31, 32 one-tenth axile displacement distributions, thus make second above same wire rod retention groove 40, one buckle 32, 31 distributions radially misplaced to axial, covered electric cable 4 to be pressed into after in wire rod retention groove 40 this diametrically second, one buckle 32, 31 can reach the anticreep effect of covered electric cable 4 from wire rod retention groove 40, when many covered electric cables 4 are pressed into multiple covered electric cable maintaining part 11 in the lump by stamping machine drift, same card column 3 axially staggers by the position of adjacent both sides covered electric cable 4 compressing distortion, therefore this process of press in not be used in and housing 1 produces very large distortion also can be pressed into many coaxial cords in the lump, thus evaded housing 1 buckling deformation phenomenon clearly when covered electric cable 4 is pressed into, effectively limit the possibility that housing 1 is destroyed.

Described first buckle 31 is away from described terminal retention portion 12, and described second buckle 32 is near described terminal retention portion 12.

Described 3rd buckle 33 is axially isometric with card column 3.

Press downward to as benchmark with covered electric cable, first, second and third buckle 31,32,33 described forms a guiding inclined plane 301 (buckle side) and wire rod restriction face 302 (buckle bottom surface) in card column upper edge towards radial expansion of adjacent covered electric cable maintaining part 11 downwards, when covered electric cable 4 is pressed into, guide in wire rod retention groove 40 by guiding inclined plane 301, guarantee the smooth press-in of covered electric cable 4, also relatively slow down housing 1 extrusion when covered electric cable 4 is pressed into simultaneously.

Press downward to as benchmark with covered electric cable, described wire rod restriction face 302 is the tabular surface parallel with the bottom surface of described housing 1.

Claims (5)

1. the covered electric cable maintaining part structure-improved of an electric connector, multiple terminal retention portion (12) of the corresponding electric connector of described covered electric cable maintaining part (11) are formed in the housing (1) of electric connector side by side, each crimp type terminal (2) remains in terminal retention portion (12), described multiple covered electric cable maintaining part (11) by some uniform intervals be formed at side by side card column (3) on housing (1) respectively adjacent define shaping, axially press downward to as benchmark with covered electric cable, each terminal retention portion (12) and covered electric cable maintaining part (11) upward opening are also axially shaping, it is characterized in that: axially press downward to as benchmark with covered electric cable, the corresponding upper edge towards the side elevation of its adjacent covered electric cable maintaining part (11) of two card columns (3) being positioned at some card column outermost radial outside extends radially out the 3rd buckle (33), the two side elevation upper edge of all the other card columns (3) extend radially out first respectively, two buckles (31, 32), described adjacent first, two, three buckles (31, 32, 33) the covered electric cable maintaining part (11) of below forms wire rod retention groove (40), described first, two buckles (31, 32) axile displacement distribution is become, and first of same wire rod retention groove (40) top, two buckles (31, 32) radially relatively and the distribution of axile displacement.

2. the covered electric cable maintaining part structure-improved of electric connector according to claim 1, it is characterized in that: described first buckle (31) is away from described terminal retention portion (12), and described second buckle (32) is near described terminal retention portion (12).

3. the covered electric cable maintaining part structure-improved of electric connector according to claim 1 and 2, is characterized in that: described 3rd buckle (33) is axially isometric with card column (3).

4. the covered electric cable maintaining part structure-improved of electric connector according to claim 3, it is characterized in that: press downward to as benchmark with covered electric cable, first, second and third buckle described (31,32,33) forms a guiding inclined plane (301) and wire rod restriction face (302) in card column upper edge towards radial expansion of adjacent covered electric cable maintaining part (11) downwards.

5. the covered electric cable maintaining part structure-improved of electric connector according to claim 4, it is characterized in that: press downward to as benchmark with covered electric cable, described wire rod restriction face (302) is the tabular surface parallel with the bottom surface of described housing (1).