CN215599251U - Electrified reminding device that discerns of block terminal cable - Google Patents
Electrified reminding device that discerns of block terminal cable Download PDFInfo
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- CN215599251U CN215599251U CN202121545435.6U CN202121545435U CN215599251U CN 215599251 U CN215599251 U CN 215599251U CN 202121545435 U CN202121545435 U CN 202121545435U CN 215599251 U CN215599251 U CN 215599251U
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Abstract
The utility model discloses a live-line identification reminding device for a cable of a distribution box, which comprises a shell, a circuit structure packaged in the shell, and an induction sheet and an indicator light which are arranged on the surface of the shell; the circuit structure includes first triode, second triode and third triode, first triode, second triode and third triode are NPN type triode, the inductive piece is connected in the basic level of first triode, the projecting pole of first triode is connected in the base of second triode, the projecting pole of second triode is connected in the base of third triode, the projecting pole of third triode is connected in the power negative pole, the collecting electrode of first triode, the collecting electrode of second triode and the collecting electrode of third triode are connected in the positive pole of power, the pilot lamp is established ties between the collecting electrode of third triode and the positive pole of power. The device judges whether alternating induction exists or not by utilizing the triode amplification principle, thereby judging whether the cable is electrified or not.
Description
Technical Field
The utility model relates to the field of electromechanical installation engineering, in particular to a live-line identification reminding device for cables of a distribution box.
Background
The temporary cable on the construction site often has electric leakage phenomenon due to various reasons, and is very easy to cause potential safety hazard to site constructors, so that a point identification reminding device is necessary to be researched and developed to prevent safety accidents caused by electric leakage of the cable of the distribution box and realize quick identification of electric leakage of the cable.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides the electrified identification reminding device for the cables of the distribution box, which can be used for quickly identifying whether the cables are electrified or not, greatly improving the safety performance and saving the workload of electricians.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a distribution box cable live-line identification reminding device comprises a shell, a circuit structure packaged in the shell, and an induction sheet and an indicator light which are arranged on the surface of the shell; the circuit structure includes first triode, second triode and third triode, first triode, second triode and third triode are NPN type triode, the inductive piece is connected in the basic level of first triode, the projecting pole of first triode connect in the base of second triode, the projecting pole of second triode connect in the base of third triode, the projecting pole of third triode is connected in the power negative pole, the collecting electrode of first triode, the collecting electrode of second triode and the collecting electrode of third triode are connected in the positive power, the pilot lamp establish ties in the collecting electrode of third triode with between the positive power.
The device is further improved in that the induction sheet is an O-shaped metal ring, the outer shell is an O-shaped outer shell, and a circle of the O-shaped metal ring is defined along the inner ring surface of the O-shaped outer shell.
The device of the utility model is further improved in that the inner diameter of the O-shaped metal ring is consistent with the outer diameter of the cable.
A further improvement of the apparatus of the present invention is that the housing is bolted to the exterior surface of the electrical box in use.
The device of the utility model is further improved in that: the power supply is an external power supply module and is connected to the power supply of the distribution box.
The device is further improved in that a fuse and a switch are connected in series between the external power supply module and the power supply of the distribution box.
The device is further improved in that the power supply is an external power supply module with 220V alternating current or 36V direct current.
The device of the utility model is further improved in that a current-limiting resistor is connected in series between the indicator lamp and the positive electrode of the power supply.
The device of the utility model is further improved in that the resistance value of the current limiting resistor is 30 omega.
The device of the utility model is further improved in that the indicator light is an LED light.
Due to the adoption of the technical scheme, the utility model can obtain the following beneficial effects:
the device provided by the utility model judges whether alternating induction exists or not by utilizing the triode amplification principle, so that whether the cable is electrified or not is judged, the power utilization state is visually presented by using the cheapest and simple electric element, the judgment of professional and non-professional personnel is facilitated, the principle of safety visualization is met, and the field power utilization safety is also improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a front view of a distribution box cable live-line identification reminding device according to an embodiment of the utility model.
Fig. 2 is a top view of the distribution box cable electrification identification reminding device in the embodiment of the utility model.
Fig. 3 is a side view of a power distribution box cable live-line identification reminding device according to an embodiment of the utility model.
Fig. 4 is an electrical schematic diagram of the distribution box cable live-line identification reminding device according to the embodiment of the utility model.
Fig. 5 is a component packaging diagram of the distribution box cable live-line identification reminding device according to the embodiment of the utility model.
Fig. 6 is an installation schematic diagram of a distribution box cable live-line identification reminding device according to an embodiment of the utility model.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 5, the embodiment of the utility model provides a distribution box cable live-line identification reminding device, which mainly comprises a shell 11, a circuit structure packaged in the shell 11, and an induction sheet 13 and an indicator light 14 which are installed on the surface of the shell. The circuit structure specifically includes a first triode 121, a second triode 122 and a third triode 123, the first triode 121, the second triode 122 and the third triode 123 are all NPN-type triodes, the inductor 13 is connected to the base of the first triode 121, the emitter of the first triode 121 is connected to the base of the second triode 122, the emitter of the second triode 122 is connected to the base of the third triode 123, the emitter of the third triode 123 is connected to the negative electrode of the power supply, the collector of the first triode 121, the collector of the second triode 122 and the collector of the third triode 123 are respectively connected to the positive electrode of the power supply, and the indicator light 14 is connected in series between the collector of the third triode 123 and the positive electrode of the power supply. The indicator lamp 14 can be a red, yellow or green LED lamp, and a current limiting resistor 15 is connected in series between the LED lamp and the positive electrode of the power supply, where the current limiting resistor 10 is used to prevent the current from being too large, and the resistance value thereof can be 30 Ω.
The power can adopt built-in power module, also can adopt external power module, can directly encapsulate in shell 11 when adopting built-in power module, accessible external wire connects in the power of block terminal when adopting external power module. In this embodiment, the power supply adopts the external power module 16, which can be adapted to ac 220V or dc 36V, and a fuse 17 and a switch 18 are further connected in series between the external power module 16 and the power supply of the distribution box 20.
As a preferred embodiment of the present invention, the sensing piece 13 is an O-shaped metal ring, the housing 11 is an O-shaped housing with the same shape, and a circle of the O-shaped metal ring is defined along an inner annular surface of the O-shaped housing, as shown in fig. 1 to 3, a small hole is formed on an outer annular surface of one side of the housing 11, and the LED lamp passes through the small hole, so as to facilitate observation of the brightness of the LED lamp, and preferably, a semicircular transparent glass cover 141 is disposed on the small hole for protecting the LED lamp. The O type metal ring is located the interior anchor ring of O type shell, and the internal diameter of this O type metal ring is unanimous with the external diameter size of the cable that awaits measuring, as shown in figure 6, when using, establish O type shell cover on cable 21, make the outside of cable 21 closely laminate with O type metal ring, adopt bolt or screw fixation to the O type shell at block terminal outside bottom, the position that cable 21 wore out the block terminal, offer the bolt hole 19 that supplies bolt or bolt to wear to establish on one side surface of O type shell.
The external power module 16 and the fuse 17 are disposed in the distribution box 20, and a wire hole is formed in the housing 11 for a wire of the connecting device and the power source to pass through the housing 11.
When the electricity is tested, the switch 18 is closed, if the cable is electrified, an induced voltage is formed on the O-shaped metal ring, the induced voltage is amplified by the first triode 121 and the second triode 122 and then acts on the third triode 12 to enable the collector electrode and the emitter electrode of the third triode to be communicated, so that the LED lamp can shine, otherwise, the LED lamp does not shine, and whether the cable is electrified or not can be judged. By adopting the cable electrified identification reminding device on each cable of the distribution box, the triode is used for amplifying and remotely judging whether alternating induction exists, so that the phenomenon of electric leakage of any cable can be quickly judged. Wherein, the LED lamp can also be replaced by a buzzer or other alarms.
It should be noted that in the foregoing description of embodiments of the present application, various features are sometimes incorporated into an embodiment, figure, or description thereof in order to simplify the present disclosure and thereby facilitate an understanding of one or more embodiments of the present invention. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Although the present application has been described with reference to the present specific embodiments, it will be recognized by those skilled in the art that the foregoing embodiments are merely illustrative of the present application and that various changes and substitutions of equivalents may be made without departing from the spirit of the application, and therefore, it is intended that all changes and modifications to the above-described embodiments that come within the spirit of the application fall within the scope of the claims of the application.
The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (10)
1. The utility model provides a live discernment reminding device of block terminal cable, its characterized in that: the circuit structure is packaged in the shell, and the induction sheet and the indicator light are arranged on the surface of the shell; the circuit structure includes first triode, second triode and third triode, first triode, second triode and third triode are NPN type triode, the inductive piece is connected in the basic level of first triode, the projecting pole of first triode connect in the base of second triode, the projecting pole of second triode connect in the base of third triode, the projecting pole of third triode is connected in the power negative pole, the collecting electrode of first triode, the collecting electrode of second triode and the collecting electrode of third triode are connected in the positive power, the pilot lamp establish ties in the collecting electrode of third triode with between the positive power.
2. The live-line identification reminding device for cables of distribution boxes according to claim 1, characterized in that: the induction sheet is an O-shaped metal ring, the shell is an O-shaped shell, and a circle of the O-shaped metal ring is formed along the surface of an inner ring of the O-shaped shell.
3. The live-line identification reminding device for cables of distribution boxes according to claim 2, characterized in that: the inner diameter of the O-shaped metal ring is consistent with the outer diameter of the cable.
4. The live-line identification reminding device for cables of distribution boxes according to claim 3, characterized in that: the shell adopts the bolt fastening at the block terminal surface when using.
5. The live-line identification reminding device for cables of distribution boxes according to claim 1, characterized in that: the power supply is an external power supply module and is connected to the power supply of the distribution box.
6. The live-line identification reminding device for cables of distribution boxes according to claim 5, wherein: and a fuse and a switch are connected in series between the external power supply module and the power supply of the distribution box.
7. The live-line identification reminding device for cables of distribution boxes according to claim 1, characterized in that: the power supply is an external power supply module with alternating current of 220V or direct current of 36V.
8. The live-line identification reminding device for cables of distribution boxes according to claim 1, characterized in that: and a current limiting resistor is connected between the indicator lamp and the positive electrode of the power supply in series.
9. The live cable identification and reminding device for distribution boxes according to claim 8, wherein: the resistance value of the current limiting resistor is 30 omega.
10. The live-line identification reminding device for cables of distribution boxes according to claim 1, characterized in that: the indicator light is an LED light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121545435.6U CN215599251U (en) | 2021-07-08 | 2021-07-08 | Electrified reminding device that discerns of block terminal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121545435.6U CN215599251U (en) | 2021-07-08 | 2021-07-08 | Electrified reminding device that discerns of block terminal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215599251U true CN215599251U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121545435.6U Active CN215599251U (en) | 2021-07-08 | 2021-07-08 | Electrified reminding device that discerns of block terminal cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215599251U (en) |
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2021
- 2021-07-08 CN CN202121545435.6U patent/CN215599251U/en active Active
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