CN217656140U

CN217656140U - Cable assembly of injection molding structure

Info

Publication number: CN217656140U
Application number: CN202221628406.0U
Authority: CN
Inventors: 王逸达; 孙业峻; 林殿夫; 邹松珊
Original assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Current assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-25
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses an injection structure's cable subassembly, its characterized in that: the cable tail part accessory comprises a pressing ring matched with the cable and a tail nut matched with the connecting piece, wherein the pressing ring and the tail nut are in insertion fit and are fixedly connected through a spring retainer ring; the tail screw cap is provided with a fixed tooth; and a protective shell is integrally arranged outside the tail nut and the cable close to the tail nut. The structure, the appearance is pleasing to the eye, and waterproof oil proof is good, and tensile strength is strong, and life is high.

Description

Cable assembly of injection molding structure

Technical Field

The utility model belongs to the technical field of the cable construction, concretely relates to injection structure's cable subassembly, the transmission of this cable subassembly mainly used engine power control system signal.

Background

Cable assemblies, particularly for engine power control system signals, primarily for signal transmission, typically include a cable body and tail fittings, also called connectors, located at either end of the cable body. The tail accessory of the existing cable assembly is connected with a cable, most of the tail accessory is a blowing-shrinking die shrinking sleeve or a double-wall heat-shrinkable tube structure, the processing mode is not attractive enough, the blowing-shrinking process is carried out manually, the angle of a bent structure cannot be kept consistent after blowing-shrinking, the appearance is not only influenced, the consistency of the cable is also influenced, unnecessary troubles are brought to the design of other parts, and the precision of a matching structure is influenced. In addition, after the blow-shrinking process, the strength is not enough due to the influence of a blow-shrinking die sleeve and the like, and the sealing is not tight, so that impurities are mixed in the middle, and the signal transmission effect is poor. In addition, the connector is not provided with a structure for fixing the cable such as a tail clamp, the contact part crimping position can be directly stressed when the cable is pulled, and the cable is easy to damage and the service life of the cable is shortened.

Therefore, a new cable assembly is urgently needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an injection structure's cable subassembly, the transmission of mainly used engine power control system signal has that the appearance size is stable, save space, the good and high characteristics of intensity of leakproofness to solve the problem among the prior art.

The utility model discloses a realize through following technical scheme: an injection molded structural cable assembly, comprising: the cable tail part accessory comprises a pressing ring matched with the cable and a tail nut matched with the connecting piece, wherein the pressing ring and the tail nut are in insertion fit and are fixedly connected through a spring retainer ring; the tail nut is provided with fixed teeth; and a protective shell is integrally arranged outside the tail nut and the cable close to the tail nut.

Further: the front part of the tail nut is provided with a stopping tooth.

Further: eight fixed teeth are arranged and are uniformly distributed along the circumferential direction.

And further: the section of the fixed teeth is in an inverted trapezoid shape.

Further: the pressing ring is in a straight cylinder shape or a bent cylinder shape.

Further: and a fastening screw matched with the connector is arranged on the tail nut.

The beneficial effects of the utility model are that: firstly, the cables are connected by adopting cabling wires, so that the overall wire diameter of the cables is compressed, and the attractiveness of the cables is improved; second, the terminal end enhances the connectivity of the cable assembly to the connector by injection molding. The cable is connected with the shell through the injection molding material, so that stress points of the cable when the cable is pulled are increased, and the protection of the crimping position of the contact is enhanced. And thirdly, the tail accessory is structurally provided with eight fixed teeth, so that the bonding area between the injection molding material and the tail accessory is increased, the fitting degree between the injection molding material and the tail accessory is higher after injection molding, and the sliding and falling of the injection molding material are effectively prevented. Fourthly, two rows of grooves are additionally formed in the tail end of the tail accessory, the bending position is protected while the bending performance of the cable at the tail end of the connector is enhanced through the additional grooves, the bending times are increased, and the service life of the cable is prolonged. Fourthly, the front end of the protective shell is added with anti-skid lines, and meanwhile, the friction force between the hand and the connector is increased, so that the connector plays a good anti-skid role in the butt joint installation process.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the tail attachment;

fig. 3 is a schematic view of the fitting structure of the tail attachment.

The sequence numbers in the figures illustrate: the cable is 1, the tail accessory is 2, the pressing ring is 3, the tail nut is 4, the spring collar is 5, the fixed teeth are 6, the protective shell is 7, the connecting piece is 8, the stopping teeth are 9, the set screw is 10, the knurling is 11, and the groove is 12.

Detailed Description

As shown in fig. 1-3, the utility model discloses a cable assembly of injection molding structure, comprising a cable 1 for transmitting current and/or signal and tail accessories 2 at two ends of the cable, wherein a plurality of wires are arranged in the cable; the tail accessory comprises a pressing ring 3 matched with the cable and a tail nut 4 matched with an external connecting piece 8, and the pressing ring and the tail nut are in insertion fit and are fixedly connected through a spring retainer ring 5; the tail nut is provided with a fixed tooth 6; and a protective shell 7 is integrally arranged outside the tail nut and the cable close to the tail nut.

Preferably, the following components: the pressing ring and the tail nut are respectively provided with a clamping groove matched with the spring clamping ring, the clamping groove on the pressing ring is in a step shape, the front end of the clamping ring is provided with a step, and the deeper part of the clamping ring is equal to or slightly larger than the thickness of the spring clamping ring and just can contain the spring clamping ring. During installation, the spring clamping ring is arranged in the groove, the outer circle of the spring clamping ring is not higher than the pressing ring by compression, the pressing ring is inserted into the tail nut and then popped up, the upper portion of the pressing ring is clamped into the clamping groove of the tail nut, the depth of the clamping groove is smaller than the thickness of the spring clamping ring, the portion, facing the inner diameter, of the spring clamping ring is clamped in the clamping groove of the pressing ring, the pressing ring moves backwards, the step is matched with the spring clamping ring, the spring clamping ring is prevented from shrinking, and after external plastic compression, the position of the pressing ring is stable, so that the effective matching of the pressing ring and the outer nut is achieved, and the pressing ring cannot fall off.

Preferably: the protection casing is the plastic material and is connected through the partly cooperation of the mode of moulding plastics with afterbody annex and cable, and the injection molding passes through mould control, has the advantage that the appearance is pleasing to the eye, dimensionally stable, and the leakproofness is good to waterproof grease proofing performance has been improved.

Preferably: the stopping teeth 9 are arranged on the front end face of the tail nut towards the front (the left direction in fig. 2), the stopping teeth are matched with the teeth on the connecting piece, the connecting piece is twisted tightly, and the stopping teeth and the teeth on the connecting piece are mutually meshed, so that the connecting piece can be effectively positioned by matching, the rotation of the connecting piece is prevented, the connection stability is improved, the inner wire of the cable is protected from the pulling force generated by the rotation of the connecting piece, the connection reliability of the tail accessory is improved, and the service life of the tail accessory is prolonged. The tail nut is provided with a set screw 10 matched with the connector, and after the connecting piece is screwed and matched with the tail nut, the set screw is screwed tightly, so that the lower end of the set screw is tightly pressed with the connecting piece, and the connection is more reliable.

Preferably: the number of the fixed teeth is eight, the fixed teeth are uniformly distributed along the circumferential direction, joint surfaces between the fixed teeth and the protective shell can be increased, the dimension of the stress direction is increased, the tail accessory and the protective shell are better combined, and therefore the combination strength of the protective shell and the tail accessory is improved.

Preferably: the cross section of the fixed teeth is inverted trapezoid, namely one end close to the axis in the diameter direction of the pressing ring is smaller, and the other end far away from the axis is larger.

Preferably: the pressing ring can be in a straight cylinder shape or a bent cylinder shape according to requirements, so that the cable connector is in a straight joint or a bent joint, and the applicability of the product is improved.

Preferably: and anti-skid grains are arranged outside the tail nut and the protective shell. The anti-skid lines on the tail screw cap are knurled 11, so that the processing is convenient, and the anti-skid effect is good. The anti-skidding lines are arranged, so that the reliability in operation can be improved, and skidding is prevented.

Preferably, the following components: a groove 12 is provided in the clamping ring. The grooves are two groups, and the rigidity of the local position of the pressing ring is reduced by increasing the grooves, so that the bending property of the cable at the tail end of the connector is enhanced, meanwhile, the bending position is protected, the bending times are increased, and the service life of the cable is prolonged.

This scheme has following advantage:

firstly, the cables are connected by adopting cable wires, so that the overall wire diameter of the cables is compressed, and the attractiveness of the cables is improved; second, the terminal end enhances the connectivity of the cable assembly to the connector by injection molding. The cable is connected with the shell through the injection molding material, so that stress points when the cable is pulled are increased, and the protection of the crimping position of the contact is enhanced. And thirdly, the tail accessory is structurally provided with eight fixed teeth, so that the bonding area between the injection molding material and the tail accessory is increased, the fitting degree between the injection molding material and the tail accessory is higher after injection molding, and the sliding and falling of the injection molding material are effectively prevented. Fourthly, two rows of grooves are additionally arranged at the tail end of the tail accessory, and through the addition of the grooves, the bending position is protected while the bending property of the cable at the tail end of the connector is enhanced, the bending times are increased, and the service life of the cable is prolonged. Fourthly, the anti-skid grains are added at the front end of the protective shell, and meanwhile, the friction force between the hand and the connector is increased, so that the connector has a good anti-skid effect in the butt joint installation process.

Claims

1. An injection molded structural cable assembly, comprising: the cable tail part accessory comprises a pressing ring matched with the cable and a tail nut matched with the connecting piece, wherein the pressing ring and the tail nut are in insertion fit and are fixedly connected through a spring retainer ring; the tail screw cap is provided with a fixed tooth; and a protective shell is integrally arranged outside the tail nut and the cable close to the tail nut.

2. An injection molded structural cable assembly as claimed in claim 1, wherein: the front part of the tail nut is provided with a stop tooth.

3. An injection molded structural cable assembly as claimed in claim 1, wherein: eight fixed teeth are arranged and are uniformly distributed along the circumferential direction.

4. An injection molded structural cable assembly as claimed in claim 1, wherein: the cross section of the fixed teeth is in an inverted trapezoid shape.

5. An injection molded structural cable assembly as claimed in claim 1, wherein: the pressing ring is in a straight cylinder shape or a bent cylinder shape.

6. An injection molded structural cable assembly as claimed in claim 1, wherein: and a fastening screw matched with the connector is arranged on the tail nut.

7. An injection molded structural cable assembly as claimed in claim 1, wherein: a groove is arranged on the pressing ring.