CN219592103U

CN219592103U - Intelligent cable accessory

Info

Publication number: CN219592103U
Application number: CN202322017419.5U
Authority: CN
Inventors: 唐伟; 曾航; 李娜; 张宾; 李超
Original assignee: State Grid Digital Technology Holdings Co ltd; Sichuan Ruiting Zhihui Technology Co ltd; State Grid E Commerce Technology Co Ltd
Current assignee: State Grid Digital Technology Holdings Co ltd; Sichuan Ruiting Zhihui Technology Co ltd; State Grid E Commerce Technology Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2023-08-25
Anticipated expiration: 2033-07-31

Abstract

The utility model provides an intelligent cable accessory, which relates to the technical field of temperature monitoring and comprises an elbow-shaped cable joint and a temperature measuring terminal, wherein the temperature measuring terminal comprises an insulating shell, a plug is arranged at the opening end thread inside the insulating shell, a through hole for penetrating an arc-extinguishing conducting rod in the elbow-shaped cable joint is arranged in the plug in a penetrating manner, an annular heat conducting piece in threaded connection with the arc-extinguishing conducting rod is fixed on the side wall of the through hole, a temperature measuring sensor is fixed on the annular heat conducting piece, and an anti-falling locking mechanism for locking the arc-extinguishing conducting rod is further arranged between the insulating shell and the plug.

Description

Intelligent cable accessory

Technical Field

The utility model relates to the technical field of temperature monitoring, in particular to an intelligent cable accessory.

Background

Along with the improvement of the power grid application technology, more and more medium-voltage equipment adopts cables to connect, and corresponding medium-voltage equipment such as looped netowrk cabinet, cable branch box, inflatable switch cabinet are more and more, and the cable fault that the power supply part faces is more and more, wherein the heating problem that cable insulation and poor contact caused occupies more than 80% of the fault quantity. Therefore, real-time monitoring of real-time temperature near the electrical connection point inside the elbow type head is needed, and temperature measurement data can be forwarded to various data management servers or online monitoring platforms, so that monitoring of the real-time operation state of the cable connector is realized.

The existing intelligent cable accessories mainly have the following problems: firstly, the temperature measuring terminal adopts an integrated forming structure, and the temperature measuring sensor is fixed in the plug by injection molding, so that the temperature measuring sensor needs to bear high injection molding temperature in the injection molding process, and the temperature measuring sensor is easy to damage; and secondly, the temperature measurement terminal and the arc extinguishing conducting rod are fixedly connected only through one-way threads, so that the stability of the temperature measurement terminal is relatively poor, and the temperature measurement terminal is easy to shift.

Accordingly, there is a need for a smart cable accessory that can address the above-described problems.

Disclosure of Invention

The utility model provides an intelligent cable accessory, which realizes the split arrangement between an insulating shell and a plug in a temperature measurement terminal, reduces the damage probability of a temperature measurement sensor, realizes the double fixation of an arc extinguishing conducting rod, and solves the problem that the temperature measurement terminal is easy to shift.

The technical scheme of the utility model is realized as follows:

the intelligent cable accessory comprises an elbow-shaped cable joint, a temperature measuring terminal used for carrying out real-time monitoring on the temperature of the elbow-shaped cable joint is arranged in the elbow-shaped cable joint, the temperature measuring terminal comprises an insulating shell, a plug is arranged at the inner opening end thread of the insulating shell, a through hole used for penetrating through an arc-extinguishing conducting rod in the elbow-shaped cable joint is arranged in the plug in a penetrating mode, an annular heat conducting piece in threaded connection with the arc-extinguishing conducting rod is fixed on the side wall of the through hole, a temperature measuring sensor is fixed on the annular heat conducting piece, and an anti-falling locking mechanism used for locking the arc-extinguishing conducting rod is further arranged between the insulating shell and the plug.

As a preferred technical scheme, anticreep locking mechanism is including being fixed in insulating housing inside fixed sleeve, the arc extinguishing conducting rod stretches out the one end of through-hole stretches into in the fixed sleeve, the arc extinguishing conducting rod stretches into be equipped with a plurality of locking groove on the lateral wall of the intraductal one end of fixed sleeve, it is equipped with a plurality of fluting to run through on the fixed sleeve's the lateral wall, each equal movable mounting has a locking spheroid in the fluting, locking spheroidal quantity and position all with locking groove's quantity and position are corresponding, the inner tip of end cap is fixed with one and is used for right locking spheroid carries out spacing sleeve, spacing sleeve's position with fixed sleeve's position looks adaptation.

As a preferable technical scheme, a first internal thread section is arranged on the inner wall of the opening end of the insulating shell, a first external thread section is arranged on the outer wall of the plug, and the first external thread section is matched with the first internal thread section.

As a preferable technical scheme, a second internal thread section is arranged on the inner wall of the annular heat conduction piece, and the second internal thread section is matched with a second external thread section on the arc extinguishing conductive rod.

By adopting the technical scheme, the utility model has the beneficial effects that:

because the intelligent cable accessory comprises the elbow-type cable connector and the temperature measuring terminal, the temperature measuring terminal comprises the insulating shell and the plug, the annular heat conducting piece and the temperature measuring sensor are fixed in the plug, the temperature measuring terminal which is formed by separately arranging the insulating shell and the plug is adopted, the insulating shell and the plug can be formed by adopting special AB epoxy resin materials for injection molding, the annular heat conducting piece and the temperature measuring sensor can be fixed with the plug in a mode of pasting, screw locking and the like, so that the temperature measuring sensor is prevented from bearing the high temperature of the injection molding process, the damage probability of the temperature measuring sensor is reduced, and meanwhile, if the temperature measuring sensor is damaged, the annular heat conducting piece and the temperature measuring sensor can be taken down to replace the temperature measuring sensor.

Because the plug is in threaded connection with the arc-extinguishing conducting rod through the annular heat conducting piece, the insulating shell locks the arc-extinguishing conducting rod through the anti-falling locking mechanism.

Because the through hole is arranged in the plug in a penetrating way, the annular heat conducting piece is fixed on the side wall of the through hole, and the temperature measuring sensor is fixed on the annular heat conducting piece, in the utility model, the temperature transmission distance between the temperature measuring sensor and the arc extinguishing conductive rod is shortened, the temperature on the arc extinguishing conductive rod is directly transmitted to the annular heat conducting piece, and the temperature measuring sensor directly monitors the temperature of the annular heat conducting piece, thereby greatly reducing the heat loss in the temperature transmission process and further improving the accuracy of temperature monitoring of the temperature measuring terminal.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a temperature measurement terminal according to the present utility model;

FIG. 3 is a schematic structural view of a plug according to the present utility model;

FIG. 4 is a schematic view of an insulating housing according to the present utility model;

wherein: 1. an insulating housing; 2. a plug; 3. arc extinguishing conductive rod; 4. a through hole; 5. an annular heat conducting member; 6. a temperature sensor; 7. an elbow type cable joint; 8. fixing the sleeve; 9. a dust-proof sealing cap; 10. a locking groove; 11. slotting; 12. locking the sphere; 13. a limit sleeve; 14. a first internal thread segment; 15. a first external thread segment; 16. a second internal thread segment; 17. a second external thread segment; 18. and crimping the terminal.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-4 together, the intelligent cable accessory comprises an elbow-shaped cable joint 7, a temperature measuring terminal for monitoring the temperature in the elbow-shaped cable joint 7 in real time is installed in the elbow-shaped cable joint 7, the temperature measuring terminal comprises an insulating shell 1, a plug 2 is installed at the opening end thread in the insulating shell 1, a through hole 4 for penetrating an arc extinguishing conducting rod 3 in the elbow-shaped cable joint 7 is penetrated and arranged in the plug 2, an annular heat conducting piece 5 in threaded connection with the arc extinguishing conducting rod 3 is fixed on the side wall of the through hole 4, and in the embodiment, the annular heat conducting piece 5 is made of metal materials; be fixed with temperature sensor 6 on the annular heat conduction piece 5, still be provided with one between insulating housing 1 and the end cap 2 and be used for carrying out the anticreep locking mechanism of locking to arc extinguishing conducting rod 3, in this embodiment, temperature sensor 6 adopts the surface acoustic wave temperature sensor that can purchase on the market, temperature sensor 6 can carry out real-time supervision to the temperature of arc extinguishing conducting rod 3, the temperature data that the monitoring gathered passes through zigBee, communication modes such as Lora, wireless transmission to all kinds of data management servers or on-line monitoring platform.

According to the utility model, the split plug 2 and the insulation shell 1 are adopted, the insulation shell 1 and the plug 2 are integrally formed through an injection molding process, and then the annular heat conducting piece 5 is utilized to fix the temperature measuring sensor 6, so that the condition that the temperature measuring sensor 6 is damaged due to bearing the high temperature of the injection molding process is avoided, the damage probability of the temperature measuring sensor 6 is effectively reduced, meanwhile, the annular heat conducting piece 5 is directly contacted with the arc extinguishing conducting rod 3, meanwhile, the temperature measuring sensor 6 directly monitors the temperature of the annular heat conducting piece 5, the heat loss in the temperature transmission process is greatly reduced, and the accuracy of temperature monitoring in the elbow type cable joint 7 by a temperature measuring terminal is further improved.

The anti-drop locking mechanism comprises a fixed sleeve 8 fixed inside an insulating shell 1, one end of an arc extinguishing conducting rod 3 extending out of a through hole 4 extends into the fixed sleeve 8, a plurality of locking grooves 10 are formed in the side wall of one end of the arc extinguishing conducting rod 3 extending into the fixed sleeve 8, a plurality of grooves 11 are formed in the side wall of the fixed sleeve 8 in a penetrating mode, a locking ball 12 is movably mounted in each groove 11, the number and the positions of the locking balls 12 are corresponding to those of the locking grooves 10, a limiting sleeve 13 used for limiting the locking balls 12 is fixed at the inner end of a plug 2, and the position of the limiting sleeve 13 is matched with that of the fixed sleeve 8.

In the utility model, the anti-falling locking mechanism is used for locking the arc-extinguishing conducting rod 3 for the second time, so that the arc-extinguishing conducting rod 3 can be doubly fixed with the plug 2 and the insulating shell 1, the stability of the insulating shell 1 and the plug 2 fixed in the elbow-type cable joint 7 is effectively improved, and the situation that the insulating shell 1 and the plug 2 fall off due to position deviation or the dust cap is propped open to cause no sealing in the elbow-type cable joint 7 is avoided.

Moreover, a first internal thread section 14 is arranged on the inner wall of the opening end of the insulating shell 1, a first external thread section 15 is arranged on the outer wall of the plug 2, and the first external thread section 15 is matched with the first internal thread section 14.

In addition, a second internal thread section 16 is provided on the inner wall of the annular heat conducting element 5, and the second internal thread section 16 is matched with a second external thread section 17 on the arc extinguishing conductive rod 3.

The installation flow of the utility model is as follows:

firstly, crimping a crimping terminal 18 and an elbow type cable connector 7, and fixing the crimping terminal through an arc extinguishing conducting rod 3;

secondly, inserting the plug 2 into the elbow-shaped cable joint 7, screwing the second internal thread section 16 of the annular heat conducting piece 5 in the plug 2 with the second external thread section 17 of the arc extinguishing conducting rod 3, fastening the plug in place, and screwing the insulating shell 1 with the first external thread section 15 on the plug 2 through the first internal thread section 14 and screwing the insulating shell into the first external thread section;

thirdly, in the process of screwing and fixing the insulating shell 1, the fixed sleeve 8 is gradually sleeved on the arc-extinguishing conducting rod 3, the limit sleeve 13 on the plug 2 is gradually sleeved outside the fixed sleeve 8, when the locking sphere 12 on the fixed sleeve 8 is aligned with the locking groove 10 on the arc-extinguishing conducting rod 3, the inner wall of the limit sleeve 13 pushes the locking sphere 12, so that the locking sphere 12 is inserted into the locking groove 10, and locking between the insulating shell 1 and the arc-extinguishing conducting rod 3 is realized;

fourth, the dustproof sealing cap 9 is covered.

In conclusion, the intelligent cable accessory provided by the utility model realizes split arrangement between the insulating shell 1 and the plug 2 in the temperature measurement terminal, reduces the damage probability of the temperature measurement sensor 6, realizes double fixation of the arc extinguishing conducting rod 3, and solves the problem that the temperature measurement terminal is easy to shift.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The intelligent cable accessory comprises an elbow-shaped cable connector and is characterized in that a temperature measuring terminal used for carrying out real-time monitoring on the temperature of the elbow-shaped cable connector is installed in the elbow-shaped cable connector, the temperature measuring terminal comprises an insulating shell, a plug is installed at the opening end thread inside the insulating shell, a through hole used for penetrating an arc-extinguishing conducting rod in the elbow-shaped cable connector is penetrated and arranged in the plug, an annular heat conducting piece in threaded connection with the arc-extinguishing conducting rod is fixed on the side wall of the through hole, a temperature measuring sensor is fixed on the annular heat conducting piece, and an anti-falling locking mechanism used for locking the arc-extinguishing conducting rod is further arranged between the insulating shell and the plug.

2. The intelligent cable accessory according to claim 1, wherein the anti-falling locking mechanism comprises a fixed sleeve fixed in the insulating shell, one end of the arc extinguishing conducting rod extending out of the through hole extends into the fixed sleeve, a plurality of locking grooves are formed in the side wall of one end of the arc extinguishing conducting rod extending into the fixed sleeve, a plurality of grooves are formed in the side wall of the fixed sleeve in a penetrating mode, a locking ball body is movably installed in each groove, the number and the positions of the locking balls correspond to those of the locking grooves, a limiting sleeve used for limiting the locking balls is fixed at the inner end portion of the plug, and the position of the limiting sleeve is matched with that of the fixed sleeve.

3. The smart cable accessory of claim 2, wherein the inner wall of the open end of the insulating housing is provided with a first internal thread section, the outer wall of the plug is provided with a first external thread section, and the first external thread section is adapted to the first internal thread section.

4. A smart cable accessory according to claim 3, wherein the annular heat-conducting member has a second internal thread section provided on an inner wall thereof, the second internal thread section being adapted to a second external thread section provided on the arc-extinguishing conductive rod.