Blanking cover, temperature measurement sensing equipment and cable connector after a kind of cable connectorTechnical field
The present invention relates to power equipment cable connector field of temperature measurement, after more particularly, to a kind of cable connector, blanking cover, thermometric passInduction device and cable connector.
Background technology
The security incident of the distribution industry of China's power system is caused by tie point heating in cabinet mostly, therefore, thinksEvade and reduction accident generation, the temperature change of contact mainly to be known a priori by and temperature value, however, existing thermometric sideFormula, either active wired contactless or passive wired contact all there is such or such problem, such asBy surrounding enviroment and the interference of electromagnetic field, volume is excessive, rapid wear is easy to break, installation is complicated, difficult in maintenance, non-refractory, insulating propertiesEasily false alarm is produced, temperature value is differed with actual temperature value than larger, replacing battery, short life etc. under difference, high temperature.
Content of the invention
The technical problem to be solved is for the deficiencies in the prior art, provide blanking cover after a kind of cable connector,Temperature measurement sensing equipment and cable connector.
The technical scheme is that a kind of rear blanking cover of cable connector, it is plugged on cableIn joint；Described rear blanking cover is in the tubular structure of one end closure, and it includes insulating barrier and the ring of integrally connected from the inside to the outside successivelyOxygen tree fat injection molded layers；It is embedded with metal insert, described metal insert is covered by epoxy resin injection molded layers in described rear blanking cover,The binding post of described cable connector is fixedly connected with described metal insert.
The invention has the beneficial effects as follows: the rear blanking cover of the present invention, strengthen the insulating properties of cable connector it is ensured that cableThe pressure performance of joint.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described metal insert is in the tubular structure and axial arranged along described rear blanking cover of one end closure, describedThe opening end of metal insert is connected with the opening end of described rear blanking cover；The madial wall of described metal insert is provided with helicitic texture；
Described binding post is fixedly linked with described metal insert by stud, and one end of described stud spinsIn described metal insert, the other end of described stud is fixedly connected with described binding post.
Beneficial effect using above-mentioned further scheme is: by being threaded structure in metal insert, facilitates wiringConnection between terminal and metal insert.
A kind of temperature measurement sensing equipment, including temperature transducer and as above after blanking cover, the crimping of described temperature transducerBetween described stud and described metal insert.
The invention has the beneficial effects as follows: the present invention by by temperature transducer be arranged on stud and metal insert itBetween, make temperature transducer be fully located at the problem that can completely avoid insulation breakdown inside rear blanking cover；And temperature transducer is straightConnect and be connected with stud, stud directly can be delivered to the temperature of binding post on temperature transducer it is achieved that completeComplete contact temperature-measuring, it is to avoid the unreal problem of the temperature leaning on temperature difference to mend in the past and caused；The temperature transducers dress of the present inventionPut easy for installation, non-maintaining.
Further, the inner ring side of described epoxy resin injection molded layers is provided with the first ring near the position of described rear blanking cover opening endShape step, described metal insert exceeds a described first annular step part and the outer rim side of this part is provided with the second annular tableRank, described first annular step is concordant with the second ring-shaped step, and described first annular step and the second ring-shaped step form a ringShape groove, described temperature transducer is arranged in described cannelure；The middle part of described stud is connected with nut, described nut pressureIt is connected on described temperature transducer.
Beneficial effect using above-mentioned further scheme is: by arranging cannelure, facilitates the installation of temperature transducer fixedPosition and temperature transducer are contacted with the seamless of nut.
Further, described temperature transducer ringwise and is socketed on described metal insert.
Further, it is connected for interference fit between described temperature transducer and described metal insert.
Beneficial effect using above-mentioned further scheme is: by joining interference between temperature transducer and metal insertClose, make the fixation of temperature transducer more firm.
Further, described temperature transducer is saw temperature sensor or radio frequency identification sensor.
Further, described stud is axial arranged along described rear blanking cover.
A kind of cable connector, including the plug-pull tube of one end closure, binding post and temperature measurement sensing equipment as above；InstituteThe one end stating binding post is connected with cable, its other end from the side wall insertion plug-pull tube of described plug-pull tube internal and with described goldBelong to inserts to be fixedly connected, described binding post is vertical with described plug-pull tube to be fixedly connected；The opening end of described rear blanking cover is from describedThe opening end of plug-pull tube inserts in described plug-pull tube.
The invention has the beneficial effects as follows: the cable connector structure of the present invention is simple, easy for installation, insulation effect is good and exempts to tie upShield.
Further, also include rear helmet, described rear helmet is socketed in the opening end of described plug-pull tube and by described rear blanking coverClosure end envelope.
Brief description
Fig. 1 is the cross-sectional view of the rear blanking cover of the embodiment of the present invention；
Fig. 2 is the cross-sectional view of the temperature measurement sensing equipment of the embodiment of the present invention；
Fig. 3 is the cross-sectional view of the construction of cable of the embodiment of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1st, rear blanking cover；11st, insulating barrier；12nd, epoxy resin injection molded layers；121st, first annular step；13rd, metal insert；131st, the second ring-shaped step；14th, cannelure；2nd, stud；3rd, nut；4th, temperature transducer；5th, cable connector；51st, plugPipe, 52, binding post；6th, cable；7th, rear helmet.
Specific embodiment
Below in conjunction with accompanying drawing, the principle of the present invention and feature are described, example is served only for explaining the present invention, andNon- for limiting the scope of the present invention.
Embodiment 1
As shown in figure 1, a kind of rear blanking cover of cable connector, it is plugged in cable connector 5；Described rear blanking cover 1 is in an end sealStifled tubular structure, it includes the insulating barrier 11 of integrally connected and epoxy resin injection molded layers 12 from the inside to the outside successively；Stifled after describedIt is embedded with metal insert 13, described metal insert 13 is covered by epoxy resin injection molded layers 11, described cable connector 5 in lid 1Binding post 52 be fixedly connected with described metal insert 13.The rear blanking cover 1 of the present embodiment can be pyramid type structure it is also possible toIt is cylindrical structural.The insulating barrier 11 of the present embodiment can be made up of insulating materials such as plastics.
As shown in Figure 1-Figure 3, the described metal insert 13 of the present embodiment is in the tubular structure of one end closure and along after describedBlanking cover 1 axial arranged, the opening end of described metal insert 13 is connected with the opening end of described rear blanking cover 1；Described metal insert13 madial wall is provided with helicitic texture；The described binding post 52 of the present embodiment passes through stud 2 and described metal insert13 are fixedly linked, and one end of described stud 2 is screwed in described metal insert 13, the other end of described stud 2 withDescribed binding post 52 is fixedly connected.
The rear blanking cover of the present embodiment, when in use, directly by the opening end of rear blanking cover from the opening end of cable connectorIn insertion cable connector, the binding post in cable connector is fixedly connected with metal insert by stud, strengthens cableThe insulating properties of joint are it is ensured that the pressure performance of cable connector.
Embodiment 2
As shown in Figure 1-Figure 3, a kind of temperature measurement sensing equipment of the present embodiment, including temperature transducer 4 with as embodiment 1 instituteThe rear blanking cover 1 stated, described temperature transducer 4 is crimped between described stud 2 and described metal insert 13.Described double end spiral shellBolt 2 is axial arranged along described rear blanking cover 1.The described temperature transducer 4 of the present embodiment is saw temperature sensor or RF identificationSensor.The present embodiment, by being arranged on temperature transducer between stud and metal insert, makes temperature transducer completeInside rear blanking cover, the problem of insulation breakdown can be completely avoid；And temperature transducer is directly connected with stud, doubleHook bolt can directly the temperature of binding post be delivered on temperature transducer it is achieved that completely contact temperature-measuring, it is to avoidThe unreal problem of the temperature leaning on temperature difference to mend in the past and caused；The temperature measurement sensing equipment of the present invention is easy for installation, non-maintaining.
As shown in Figure 1-Figure 3, the inner ring side of the described epoxy resin injection molded layers 12 of the present embodiment opens near described rear blanking coverThe position at mouth end is provided with first annular step 121, and described metal insert 13 exceeds described first annular step 121 part and is somebody's turn to doPartial outer rim side is provided with the second ring-shaped step 131, and described first annular step 121 is concordant with the second ring-shaped step 131, describedFirst annular step 121 and the second ring-shaped step 131 form a cannelure 14, and described temperature transducer 4 is arranged on described annularIn groove 14；The middle part of described stud 2 is connected with nut 3, and described nut 3 is crimped on described temperature transducer 4.Described ringThe shape of shape groove can be arbitrary shape, preferably circular structure or polygonized structure.By arranging cannelure, sideJust the installation positioning of temperature transducer and temperature transducer are contacted with the seamless of nut.
The described temperature transducer 4 of the present embodiment ringwise and is socketed on described metal insert 13.Described temperature transducersIt is connected for interference fit between device 4 and described metal insert 13.By by interference fit between temperature transducer and metal insert,Make the fixation of temperature transducer more firm.
The temperature measurement sensing equipment of the present embodiment when in use, by the opening end of rear blanking cover from the opening end of cable connectorInsertion, then binding post is fixed in metal insert by stud, and temperature transducer is crimped on studOn nut.
Embodiment 3
A kind of cable connector of the present embodiment, including the plug-pull tube 51 of one end closure, binding post 52 and as embodiment 2 instituteThe temperature measurement sensing equipment stated；One end of described binding post 52 is connected with cable 6, and its other end is from the side wall of described plug-pull tube 51Insertion plug-pull tube 51 is internal and is fixedly connected with described metal insert 13, and described binding post 52 is vertical with described plug-pull tube 51 solidFixed connection；The opening end of described rear blanking cover 1 inserts in described plug-pull tube 51 from the opening end of described plug-pull tube 51.The present embodimentCable connector structure is simple, easy for installation, insulation effect is good and non-maintaining.
The cable connector 5 of the present embodiment also includes rear helmet 7, and described rear helmet 7 is socketed in the uncovered of described plug-pull tube 51Hold and the closure end of described rear blanking cover 1 is enveloped.
The two ends of the plug-pull tube of the cable connector of the present embodiment are all blocked, and the anti-breakdown effect that insulate is good.And by thermometricSensor is directly connected with the conductor of heating it is achieved that real contact temperature-measuring.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention andWithin principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.