Cold contraction type outdoor terminal connector

By installing anti-distortion components on the outside of the cable, including ferrite magnetic rings and sleeves, the problem of cable damage at low temperatures in cold-shrink outdoor terminal connectors is solved, achieving signal protection and buffering effects.

CN223829017UActive Publication Date: 2026-01-23WUHAN KENENG ELECTRIC CO LTD
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Patent Information

Application Number
CN202520139623.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-01-23
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

The existing cold-shrink outdoor terminal joints are susceptible to cable damage due to temperature changes in low-temperature environments.

Method used

Anti-distortion components are installed on the outside of the cable, including a ferrite magnetic ring and a sleeve. The outer wall of the sleeve has a groove, and a retaining ring is used to enhance stability and protection. The plastic material provides a buffer space when it shrinks due to cold.

Benefits of technology

It effectively prevents signal distortion and protects cables in low-temperature environments, avoiding damage caused by internal compression pressure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cold contraction type outdoor terminal connector, relates to the field of cable connectors, solves the problem that a cable is damaged due to the fact that an existing device is directly placed outdoors and is easily influenced by lower temperature, and adopts the following scheme that the cold contraction type outdoor terminal connector comprises the cable arranged outdoors, and the outer end of the cable is electrically connected with a connector; the outer wall of the cable is sleeved with an anti-distortion assembly, and an elastic plastic material sleeve is arranged on the outer side of the cable and the outer side of the anti-distortion assembly in a cold contraction mode. A main body of the anti-distortion assembly is a ferrite magnetic ring arranged on the outer wall of the cable, and the outer wall of the ferrite magnetic ring is fixedly sleeved with a sleeve. According to the cold contraction type outdoor terminal connector, through the arrangement of the anti-distortion assembly on the outer side of the cable, the cable can be protected under the condition that signals transmitted in the cable are distorted, meanwhile, through the arrangement of the sleeve and the shape of the sleeve, a cold contraction space can be provided for the cable under the condition that the outdoor temperature is reduced, and the service life of the cable is prolonged. A buffer space can be provided when the temperature is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of cable connector technology, specifically a cold-shrink outdoor terminal connector. Background Technology

[0002] Cold shrink cable terminations are components of various cable accessories, formed by injection vulcanization of elastomer materials in a factory, followed by diameter expansion and lining with plastic spiral supports. During field installation, these pre-expanded parts are fitted onto the treated cable end or joint, the internal supporting plastic spiral strip (support) is removed, and the termination is pressed firmly against the cable insulation. Because it shrinks at room temperature using elastic recoil force, unlike heat shrink cable accessories which require heating, it is commonly known as a cold shrink cable accessory.

[0003] A search revealed that patent application number 202323200375.6 discloses a cold-shrink outdoor cable termination connector, including a protective sleeve. The protective sleeve contains an insert and three support rings. Several rain skirts are fixedly installed on the outer surface of the protective sleeve. Waterproof tape is wrapped around the outer surface of the sealing tube. The shock-absorbing structure includes a housing, snap-fit ​​plates, a threaded rod, handles, springs, and slides. This cold-shrink outdoor cable termination connector, through its shock-absorbing structure, allows the cable termination connector to be placed inside the housing. Holding the handles on both sides and rotating them causes two sets of springs to slide within two sets of slides, separating the two snap-fit ​​plates. The protective sleeve is then placed between the two snap-fit ​​plates. Flipping the handles causes the threaded rod to rotate with the housing, moving it inwards. The two snap-fit ​​plates then engage the protective sleeve, and the two sets of springs reach the appropriate positions, thus providing shock absorption for the cable termination connector.

[0004] The aforementioned application documents achieve the effect of a high-efficiency connector through the setting of each component. However, since it is a cold-shrink connector, a ferrite magnetic ring is generally required to be set on the outside of the cable end to avoid signal distortion. However, since it is an outdoor connector, it is still affected by the outside temperature. Especially in cold conditions, the inward elastic material sleeve applies excessive pressure inward, which can easily lead to cable damage.

[0005] Therefore, we propose a cold-shrink outdoor terminal connector. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a cold-shrink outdoor terminal connector, which solves the problem that existing devices placed directly outdoors are susceptible to damage from low temperatures.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a cold-shrink outdoor terminal connector, including a cable installed outdoors, and the outer end of the cable is electrically connected to a connector, an anti-distortion component is fitted on the outer wall of the cable, and the cable and the outer side of the anti-distortion component are cold-shrinked with an elastic plastic material sleeve.

[0008] The main body of the anti-distortion component is a ferrite magnetic ring set on the outer wall of the cable, and a sleeve is fixedly fitted on the outer wall of the ferrite magnetic ring.

[0009] As a preferred embodiment of this utility model, the sleeve is a circular ring, and a long strip-shaped semi-circular groove is provided on the outer wall of the sleeve.

[0010] The sleeve design protects the ferrite ring from the outside. When the outer plastic material shrinks and adheres to the sleeve, there is a gap between the groove and the plastic material. When the outdoor temperature drops and the plastic material shrinks inward due to the temperature, it squeezes the space in the gap, thus preventing the cable from being damaged due to inward compression.

[0011] As a preferred embodiment of the present invention, the anti-distortion component further includes retaining rings that are fixedly fitted on the outer sides of both ends of the ferrite magnetic ring;

[0012] The radius of the retaining ring is 1.25 times that of the ferrite magnetic ring, thus preventing damage to it.

[0013] As a preferred embodiment of this utility model, the main body of the retaining ring is an annular plate, and the upper, lower, left and right edges of the retaining ring are all configured as transverse edge walls.

[0014] The horizontal design of the outer edge of the retaining ring facilitates its placement and increases its stability during operation.

[0015] As a preferred embodiment of this utility model, the front side of the retaining ring is fixedly fitted with an end clip located outside the cable, and the end clip is a conical ring seat;

[0016] The end card design makes it easier for the plastic sleeve to be cold-shrink and adsorbed onto its outer wall, ensuring the adsorption effect and increasing the overall suitability.

[0017] This utility model provides a cold-shrink outdoor terminal connector. It has the following advantages:

[0018] This cold-shrink outdoor terminal connector protects the cable from signal distortion by using anti-distortion components on the outside of the cable. The sleeve and its shape provide a space for cold shrinkage when the outdoor temperature drops, thus providing a buffer space and solving the problem that existing devices placed directly outdoors are susceptible to damage from low temperatures. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the anti-distortion component of this utility model;

[0021] Figure 3 This is a schematic diagram of the outer structure of the anti-distortion component of this utility model.

[0022] In the diagram: 1. Cable; 2. Connector; 3. Anti-distortion component; 31. Ferrite ring; 32. Snap ring; 33. End clip; 34. Sleeve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a cold-shrink outdoor terminal connector, including an outdoor cable 1, with a connector 2 electrically connected to the outer end of the cable 1, an anti-distortion component 3 fitted on the outer wall of the cable 1, and an elastic plastic material sleeve cold-shrinking the cable 1 and the outer side of the anti-distortion component 3; the main body of the anti-distortion component 3 is a ferrite magnetic ring 31 set on the outer wall of the cable 1, and a sleeve 34 is fixedly fitted on the outer wall of the ferrite magnetic ring 31;

[0025] The cold-shrink outdoor terminal connector, through the setting of the anti-distortion component 3 on the outside of the cable 1, can protect the cable 1 from signal distortion. At the same time, the sleeve 34 and its shape can provide cold-shrink space when the outdoor temperature drops, and can provide a buffer space when the temperature drops, thus solving the problem that existing devices are easily affected by low temperatures when placed outdoors, which can lead to damage to the cable 1.

[0026] Example 2:

[0027] The sleeve 34 is a circular ring, and a long, semi-circular groove is provided on the outer wall of the sleeve 34. The sleeve 34 can protect the ferrite magnetic ring 31 from the outside. When the plastic material on the outside of the sleeve 34 shrinks and adheres to the sleeve 34 inward, there is a gap between the groove and the plastic material. When the outdoor temperature drops and the plastic material shrinks inward due to the temperature, it squeezes the space in the gap, thereby preventing the cable 1 from being damaged due to inward compression.

[0028] The anti-distortion component 3 also includes retaining rings 32 that are fixedly fitted on the outer sides of both ends of the ferrite magnetic ring 31; wherein, the radius of the retaining rings 32 is 1.25 times that of the ferrite magnetic ring 31, thereby preventing damage to it.

[0029] The main body of the retaining ring 32 is an annular plate, and the upper, lower, left and right edges of the retaining ring 32 are all set as transverse edge walls; the transverse setting of the outer edge of the retaining ring 32 facilitates its placement and increases its stability during operation.

[0030] The front side of the retaining ring 32 is fixedly fitted with an end clip 33 located outside the cable 1, and the end clip 33 is a conical ring seat; the end clip 33 is designed to facilitate the cold shrinking and adsorption of the plastic sleeve onto its outer wall, ensuring the adsorption effect and increasing the fitting effect.

[0031] The working principle and usage process of this utility model are as follows: The sleeve 34 is fitted onto the ferrite magnetic ring 31, and then the end clip 33, the retaining ring 32, the ferrite magnetic ring 31, another set of retaining rings 32 and the end clip 33 are fitted onto the cable 1 in sequence. Finally, the plastic material is cold-shrinked and adsorbed onto the outside of the cable 1 and the anti-distortion component 3 to ensure the protective effect.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cold-shrink outdoor terminal connector, characterized in that: It includes an outdoor cable (1), and the outer end of the cable (1) is electrically connected to a connector (2). The outer wall of the cable (1) is fitted with an anti-distortion component (3), and the cable (1) and the outer side of the anti-distortion component (3) are cold-shrinked with an elastic plastic material sleeve. The main body of the anti-distortion component (3) is a ferrite magnetic ring (31) set on the outer wall of the cable (1), and a sleeve (34) is fixedly fitted on the outer wall of the ferrite magnetic ring (31).

2. The cold-shrink outdoor terminal connector according to claim 1, characterized in that: The sleeve (34) is a circular ring, and a long strip-shaped semi-circular groove is provided on the outer wall of the sleeve (34).

3. The cold-shrink outdoor terminal connector according to claim 1, characterized in that: The anti-distortion component (3) also includes retaining rings (32) that are fixedly fitted on the outer sides of both ends of the ferrite magnetic ring (31).

4. The cold-shrink outdoor terminal connector according to claim 1, characterized in that: The main body of the retaining ring (32) is an annular plate, and the upper, lower, left and right edges of the retaining ring (32) are all set as transverse edge walls.

5. A cold-shrink outdoor terminal connector according to claim 1, characterized in that: The front side of the retaining ring (32) is fixedly fitted with an end clip (33) located outside the cable (1), and the end clip (33) is a conical ring seat.

Citation Information

Patent Citations

  • Cold contraction type outdoor cable terminal joint

    CN221408410U