CN208547686U - A kind of visual power warning device - Google Patents

Abstract

The utility model discloses a kind of visual power warning devices, it include: conductor wire, the conductor wire includes power input, central conductor and power output end, the central conductor is between the power input and the power output end, it is equipped with first at the power input and takes electric portion, is equipped with second at the power output end and takes electric portion；Flexible tape circuit board, the flexible tape circuit board are equipped with AC/DC conversion circuit and light source, and the input terminal of the AC/DC conversion circuit is electrically connected on the central conductor by lead, and the output end of the AC/DC conversion circuit is electrically connected with the light source.The utility model structure is simple, setting is flexible, and cost savings can be used for realizing in conjunction with electrical power distribution system primary connection figure, provides intuitive circuit on-off situation for operation maintenance personnel, helps the quick locating bad lines section of operation maintenance personnel.

Description

A kind of visual power warning device

Technical field

The utility model relates to power cord regulation technique field more particularly to a kind of visual power warning devices.

Background technique

The health operation of data center machine room needs to supply by lasting clean electric power, from power system design to entire Power network line is laid, even the defect or failure of a tiny bit, fall into even all may cause most modern, state-of-the-art computer room Enter paralysis, therefore how the monitoring and management of power supply and distribution situation are important and crucial one in winding houses operation management system Ring timely and effectively positions troubleshooting and is conducive to ensure the benefit of client, reduces economic loss.

Computer room network system is complicated, including equipment is more, and different computer rooms have different device systems, construct early period, Generally can all there be corresponding primary connection figure, be referred to for construction personnel, wherein primary connection figure is to be provided using primary connection Equipment text and graphical symbol by job order arrange, whole groups of electrical equipment or complexes (GIS) are shown in detail At the single-lined diagram with connection relationship.

Calculator room equipment is numerous, and power supply management task is not light, and the computer room having at present is patrolled by operation maintenance personnel timing Indicator light in switchgear house on electrical cabinet checks whether to occur power supply trouble and power supply trouble where occurs, but sometimes single A electrical cabinet might not only be connected with a type of equipment, so malfunction elimination effect is undesirable, event can not be accurately positioned Hinder the link occurred, and operation maintenance personnel needs live inspection large labor intensity, working efficiency is low.Existing relatively advanced computer room In, operation maintenance personnel duty room equipped with power monitoring system, by the way that the monitoring device in each orientation of computer room is arranged in come generation For the eyes monitoring field electric power thus supplied of personnel, and collected data are wirelessly transmitted to duty room in real time, pass through client Software carries out corresponding position and show and situation alarm so that operation maintenance personnel not go it is live can grasp computer room power supply and distribution in real time, Electric power first-aid also can be fast and accurately carried out when failure occurs, such as notification number is disclosed in CN203025244U patent document " power distribution room power-failure alarming device ", but above system will reach ideal effect, need in computer room construction early period and calculator room equipment Route topological diagram cooperation is reasonably designed, and setup cost and later maintenance cost are comparatively all bigger, and Be not suitable for small-sized data center machine room to be equipped with.

For another example notification number is to use disclosed in the patent document of CN206990735U " a kind of electric wire alarm device " When, first fixed bottom plate 1 is fixed in suitable operating position, then by power cord and power supply line output terminal 3 and power supply Line input terminal 5 is connected, and when losing input terminal, loudspeaker power supply module 202 starts alarm while lamp module 206 of alarming lights hair It alarms out, to be monitored in real time to power cord, ensures although power supply and distribution, above-mentioned apparatus are suitable for small-sized data center machine Room is equipped with, but occupancy volume is larger, is needed to pre-select suitable operating position when connecting cooperation with power cord and is carried out specially Door is fixed, and there is limitation in settable space, and application is inflexible.

Utility model content

The technical problem to be solved by the utility model is to propose a kind of structure for the above-mentioned deficiency of the prior art Simply, flexibly, it is operation maintenance personnel that cost savings, which can be used for realizing in conjunction with electrical power distribution system primary connection figure, for setting Intuitive circuit on-off situation is provided, helps a kind of visual power of the quick locating bad lines section of operation maintenance personnel to alarm and fills It sets.

The utility model solves its technical problem, adopts the following technical scheme that

A kind of visual power warning device, comprising:

Conductor wire, the conductor wire include power input, central conductor and power output end, and the central conductor is located at First is equipped between the power input and the power output end, at the power input and takes electric portion, and the power supply is defeated It is equipped with second at outlet and takes electric portion；

Flexible tape circuit board, the flexible tape circuit board are equipped with AC/DC conversion circuit and light source, the AC/DC The input terminal of conversion circuit is electrically connected on the central conductor by lead, the output end of the AC/DC conversion circuit and institute State light source electrical connection.

By above-mentioned design, in use, only needing to take electric portion and second to take electric portion difference access device A and equipment B for first Between power supply line on, the break-make situation of this section of power supply line can be monitored in real time, be then specifically by the bright of light source or to go out Operation maintenance personnel is reminded, when this section of power supply line's abnormal electrical power supply, no current transmission, light source goes out, when this section of power supply line powers When normal, there is electric current transmission, light source is bright, it is emphasized that, parallel way access device A can only be used by being different from conventional equipment On-off monitoring is carried out between equipment B, the device of the design both can be in parallel between access device A and equipment B It, can also be in series between access device A and equipment B in power supply line, and due to only being wrapped in structure in power supply line It containing conductor wire and flexible tape circuit board, occupies little space, can be mounted directly in power cord, it is preferably electric with electric power Line fusion, set-up mode and use space are flexible, and when the damage of the device of the design, replacement is also very convenient, and maintenance cost is low.

In addition also just since the structure of the device of the design is simple, flexible characteristic is set, the design can be used for Electrical power distribution system primary connection figure combines, and primary connection figure is arranged to correspond with equipment in primary connection figure and line Display board, display board is equipped with mark or character such as relevant device in primary connection figure, and each section of line of equipment room is replaced Then the device of Cost Design takes the of the device for being electrically connected to the design from each corresponding device location connection electric wire of computer room One takes electric portion and second to take electric portion, so that operation maintenance personnel can clearly understand equipment room in computer room by display board in real time Power-feed section break-make situation, not only increase working efficiency, also help and instruct operation maintenance personnel quickly to position to need the event repaired Hinder section.

Further, described first take electric portion and described second that electric portion is taken to be equipped with connecting terminal.Connecting terminal is conducive to Realize that present apparatus conductor wire connect conducting with the quick of the power cord in supply network.

Further, further include encapsulated layer, the encapsulated layer is translucent material and is formed with closed middle layer, it is described in Interbed is coated on except the flexible tape circuit board and the central conductor.Encapsulated layer for protect flexible tape circuit board and Conductor wire has waterproof insulation effect.

Further, battery, control switch and buzzer, the battery are additionally provided on the flexible tape circuit board It is buzzer power supply, the control switch control terminal and the AC/DC conversion circuit output end by the control switch Electrical connection, when the AC/DC conversion circuit output end does not have electric current input, the control switch closure, when the AC/DC turns When changing circuit output end has electric current input, the control switch is disconnected.The setting of battery, control switch and buzzer, so that The present apparatus can be transmitted in no current, i.e., when route disconnects, make a sound alarm, and when there is electric current transmission, and it is alert to stop sound Report, to increase the mode of prompt operation maintenance personnel power supply break-make situation.

Further, the AC/DC conversion circuit output end is electrically connected with the charging end of the battery.Be conducive to store Battery charging.

Further, the control switch includes normally closed relay, and the normally closed relay includes coil-end and normally closed touching Point, the coil-end constitute the control switch control terminal and are electrically connected with the AC/DC conversion circuit output end, the electric power storage Pond, the normally-closed contact and the buzzer are connected in series.

Further, the control switch includes control circuit, and the control circuit includes the first triode, the two or three pole Pipe, the first biasing resistor and the second biasing resistor；The base stage of first triode and AC/DC conversion circuit output end electricity Connection, the collector or emitter of first triode be electrically connected with first biasing resistor after with the battery just Pole electrical connection, the remaining not connected pole of first triode are negative with second biasing resistor and the battery respectively Pole electrical connection；The base stage of second triode is electrically connected between first biasing resistor and first triode, institute The emitter for stating the second triode is electrically connected with the buzzer, and the collector and the battery of second triode are just Pole electrical connection.

Further, the control switch includes control circuit, and the control circuit includes the first field-effect tube, second Effect pipe, the first biasing resistor and the second biasing resistor；The grid of first field-effect tube and the AC/DC conversion circuit are defeated Outlet electrical connection, anode with the battery after the drain electrode of first field-effect tube is electrically connected with first biasing resistor Electrical connection, grid with first field-effect tube after the source electrode of first field-effect tube is electrically connected with second biasing resistor Pole electrical connection；The grid of second field-effect tube is electrically connected to the leakage of first biasing resistor and first field-effect tube Between pole, the source electrode of second field-effect tube is electrically connected with the buzzer, the drain electrode of second field-effect tube with it is described The anode electrical connection of battery.

Further, flexible tape circuit board coiling is on the central conductor and in a helical pattern in described Between conductor length direction extend, the light source is set to the surface that does not contact with the central conductor of the flexible tape circuit board.

Further, the encapsulated layer is advantageously allowed the utility model and is laid flexibly by flexible material extrusion forming, institute It states encapsulation layer surface and is equipped with double-sided adhesive.Be conducive to facilitate the fixation of the utility model.

Compared with prior art, the utility model has the beneficial effects that structure is simple, lay flexibly, it on the one hand can be direct Use as power cord, on the other hand can cooperate with the good connection of power cord, can be used for through light light on and off in real time, The break-make situation in the current institute's wiring section of operation maintenance personnel is prompted visual and clearly.

Detailed description of the invention

To become apparent from detailed description the embodiments of the present invention, attached drawing is as follows:

Fig. 1 is the overall structure diagram of the utility model embodiment 1；

Fig. 2 is the overall structure diagram of the utility model embodiment 2；

Fig. 3 is the structural schematic diagram of the flexible tape circuit board in the utility model embodiment 2；

Fig. 4 is the circuit diagram on the flexible tape circuit board in the utility model embodiment 2；

Fig. 5 is the another form of circuit diagram on the flexible tape circuit board in the utility model embodiment 2；

Fig. 6 is the circuit diagram of another form on the flexible tape circuit board in the utility model embodiment 2；

Fig. 7 is that the utility model embodiment 3 removes the structural schematic diagram after encapsulated layer.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

Embodiment 1

As shown in Figure 1, the present embodiment provides a kind of visual power warning devices, comprising:

Conductor wire 100, the conductor wire 100 include power input, central conductor 110 and power output end, it is described in Between conducting wire 110 between the power input and the power output end, be equipped at the power input and first take electricity Portion 120 is equipped with second at the power output end and takes electric portion 130；First takes electric portion 120 and second to take electric portion 130 that purpose is arranged It is when taking electricity for convenience and the connection of power cord, therefore in the prior art, convenient for wiring structure can all be set to first and take electricity Portion 120 and second takes at electric portion 130, such as wiring cap, binding post etc.；

Flexible tape circuit board 200, the flexible tape circuit board 200 are equipped with AC/DC conversion circuit 210 and light source 220, the input terminal of the AC/DC conversion circuit 210 is electrically connected on the central conductor 110 by lead, and the AC/DC turns The output end for changing circuit 210 is electrically connected with the light source 220, the other end ground connection of the light source 220.Due to 100 benefit of conductor wire The route for taking electric portion 120 or the second that electric portion 130 is taken to take electricity with first is generally power circuit, the exchange that transmission electricity is 220V Electricity, therefore be arranged after AC/DC conversion circuit 210 converts alternating current to direct current and power again to light source 220, specific AC/DC turns Changing circuit 210 can be selected the constant voltage dc source that AC220V turns DC5V, and 5V direct current light emitting diode can be selected in light source 220；It needs Illustrate, may include multiple light sources 220 on flexible tape circuit board 200 in the present embodiment, is in parallel connection between multiple light sources 220 Connection does not influence the instruction of other light sources when light source 220 damages, and light source 220, which is arranged, multiple to be conducive to exclude single light The light on and off of 220 faults itself of source are abnormal, avoid false alarm.

By above-mentioned design, in use, only need by first take electric portion 120 and second take electric portion 130 be respectively connected to equipment A with In power supply line between equipment B, the break-make situation of this section of power supply line can be monitored in real time, wherein equipment A and equipment B be not Certain two particular device is referred to, and is only used for distinguishing two equipment；Specifically, the present embodiment by the bright of light source 220 or go out come Operation maintenance personnel is reminded, when this section of power supply line's abnormal electrical power supply between equipment A and equipment B, no current transmission, light source 220 goes out； When this section of power supply line's power supply is normal, there is electric current transmission, light source 220 is bright；It can only it is emphasized that being different from conventional equipment Using on-off monitoring is carried out between parallel way access device A and equipment B, the device of the design can both connect in parallel Enter in the power supply line between equipment A and equipment B, it can also power supply line between access device A and equipment B in series On, this conductive characteristic for being also due to conductor wire 100 determines, therefore preferentially selects and existing power transmission when the setting of conductor wire 100 The conducting wire of core wire same material.

Due to, only comprising conductor wire 100 and flexible tape circuit board 200, occupying little space in the utility model structure, energy It is enough mounted directly in power cord, is preferably merged with power cord, set-up mode and use space are flexible, work as the design Device damage when, replace it is also very convenient, maintenance cost is low.

In addition also just since the utility model structure is simple, flexible special sexual enlightenment is set, the utility model can be by For in conjunction with electrical power distribution system primary connection figure, primary connection figure to be arranged to and equipment in primary connection figure and line one One corresponding display board, display board can be located at duty room, and display board is equipped with the mark such as relevant device in primary connection figure Or then character, the device of the equal alternative costs utility model of each section of line of equipment room connect from each corresponding device location of computer room It connects wires to take and is electrically connected to display board and takes electric portion 120 and second to take electric portion 130 with the first of the device of the utility model respectively Connection, it should be noted that the end for wire current flow direction of powering preferably between equipment A and equipment B when connection electric wire takes electricity Electricity is taken, avoids the damage for taking the electric wire after electricity from leading to equipment power supply failure and generation the case where alarm free, to guarantee the standard of alarm True property.

To sum up, aloow operation maintenance personnel that can clearly understand the power-feed section of equipment room in computer room in real time in duty room Break-make situation not only increases the working efficiency of electric power inspection, also helps and operation maintenance personnel is instructed quickly to position what needs were repaired Faulty section.Mode of the utility model in conjunction with electrical power distribution system primary connection figure, so that the monitoring of power supply state is more bonded In computer room actual track situation, practicability with higher helps comprehensively to control computer room power supply and distribution, ensures equipment operation, Safeguard the benefit of client.

Embodiment 2

The present embodiment the difference from embodiment 1 is that, described first takes electric portion 120 and described second that electric portion 130 is taken to be all provided with There is connecting terminal.Connecting terminal is advantageously implemented the quick connection of the power cord in present apparatus conductor wire 100 and supply network Conducting, connecting terminal are the general standard component of wiring.

Further, as shown in Fig. 2, the present embodiment further includes encapsulated layer 300, the encapsulated layer 300 be translucent material simultaneously Be formed with closed middle layer, the middle layer be coated on the flexible tape circuit board 200 and the central conductor 110 it Outside, flexible tape circuit board 200 and central conductor 110 are sealed in middle layer by the setting of middle layer, are only exposed first and are taken electric portion 120 and second take electric portion 130, and first takes electric portion 120 and second that electric portion 130 is taken to be respectively equipped with and the integrally formed guarantor of middle layer outside Sheath is conducive to protect flexible tape circuit board 200 and conductor wire 100, has certain waterproof insulation effect, it is real to be conducive to enhancing With property, extend present apparatus service life.300 packaging appearance of encapsulated layer view conductor wire 100 and flexible tape circuit in the present embodiment Depending on 200 display case of plate, the encapsulation cross section of encapsulated layer 300 is preferably rectangle.

As shown in figure 3, being additionally provided with battery 230, control switch 240 and buzzer on the flexible tape circuit board 200 250, the battery 230 is the buzzer 250 power supply, 240 control terminal of control switch by the control switch 240 It is electrically connected with 210 output end of AC/DC conversion circuit, when 210 output end of AC/DC conversion circuit does not have electric current input When, the control switch 240 is closed, when 210 output end of AC/DC conversion circuit has electric current input, the control switch 240 disconnect.The setting of battery 230, control switch 240 and buzzer 250 enables the present apparatus to transmit in no current, i.e., It when this section of power supply line of present apparatus connection disconnects, makes a sound alarm, is there is electric current transmission, i.e., when power supply line is connected to, Stop audio alarm again, in such a way that this is conducive to increase prompt operation maintenance personnel power supply break-make situation, provides and timely and effectively report It is alert.

Optionally, 210 output end of AC/DC conversion circuit is electrically connected with the charging end of the battery 230.Be conducive to For the charging of battery 230.

Optionally, as shown in figure 4, the control switch 240 includes normally closed relay, the normally closed relay includes coil I and normally-closed contact K are held, the coil-end I constitutes 240 control terminal of control switch and the AC/DC conversion circuit 210 exports End electrical connection, the battery 230, the normally-closed contact K and the buzzer 250 are connected in series.Normally-closed contact K is in coil End I does not have to be in closed state when electric current input always, and battery 230 is closed by normally-closed contact K to buzzer at this time 250 power supplies, 250 sounding of buzzer, when coil-end I has electric current input, coil-end I disconnects normally-closed contact K, buzzer 250 It closes.It should be noted that battery 230 is rechargeable battery, to prevent this warning device when being not used by just due to line Road conducting issues buzz noise and results in waste of resources, the battery 230, the normally-closed contact K and the buzzer 250 Between series loop in be in series with manual switch K1, when manual switch K1 and normally-closed contact K are closed at, buzzing Device 250 just understands sounding, when wanting to close buzzer after operation maintenance personnel discovery alarm, manually adjusts manual switch K1.

To avoid the problem that normally closed relay occupies biggish volume and higher operating costs, optionally, the control is opened Close 240 include control circuit, the control circuit include the first triode Q1, the second triode Q2, the first biasing resistor R1 and Second biasing resistor R2；The base stage of the first triode Q1 is electrically connected with 210 output end of AC/DC conversion circuit, described Anode with the battery 230 after the collector or emitter of first triode Q1 are electrically connected with the first biasing resistor R1 Electrical connection, the remaining not connected pole of the first triode Q1 respectively with the second biasing resistor R2 and the battery 230 cathode electrical connection；The base stage of the second triode Q2 is electrically connected to the first biasing resistor R1 and the described 1st On route between pole pipe Q1, the emitter of the second triode Q2 is electrically connected with the buzzer 250, the two or three pole The collector of pipe Q2 is electrically connected with the anode of the battery 230.Likewise, this warning device is when being not used by order to prevent Just since line conduction issues buzz noise and results in waste of resources, the collector of the second triode Q2 is first electric with manual switch K1 Anode after connection again with the battery 230 is electrically connected.

Specifically, as shown in figure 5, when the first triode Q1 and the second triode Q2 is NPN type triode, described first The collector of triode Q1 is electrically connected after being electrically connected with the first biasing resistor R1 with the anode of the battery 230, described The emitter of first triode Q1 is electrically connected with the cathode of the second biasing resistor R2 and the battery 230 respectively；Work Principle is: when power supply line's power supply is normal, and AC/DC conversion circuit 210 has the base stage of the first triode Q1 of electric current input, first The collector output of triode Q1 is low level, after low level is connected into the base stage of the second triode Q2, the collection of the second triode Q2 It is in an off state between electrode and emitter, is not turned on electric current, thus the not sounding of buzzer 250；When power supply line's power supply is different Often, when AC/DC conversion circuit 210 inputs the base stage of the first triode Q1 without electric current, the collector output of the first triode Q1 For high level, after high level is connected into the base stage of the second triode Q2, it is between the collector and emitter of the second triode Q2 Current conductive state, 250 sounding of buzzer.When the utility model is used, take electric portion 120 and second that electric portion 130 is taken to divide for first It is not connected into power supply line and is formed into a loop, closing manual switch K1 makes its closure, once there is abnormal electrical power supply in power supply line, the line After the no power of road, buzzer 250 will issue the sound always until power supply normally or when disconnecting manual switch K1 can just stop.

When the first triode Q1 is PNP type triode, the emitter of the first triode Q1 and first biasing Resistance R1 electrical connection after with the battery 230 anode be electrically connected, the collector of the first triode Q1 respectively with it is described The electrical connection of the cathode of second biasing resistor R2 and the battery 230；This is also due to PNP type triode and NPN type triode In place of nuance caused by working principle.

Optionally, as shown in fig. 6, the control switch 240 includes control circuit, the control circuit includes first effect It should pipe VT1, the second field-effect tube VT2, the first biasing resistor R1 and the second biasing resistor R2；The first field-effect tube VT1's Grid is electrically connected with 210 output end of AC/DC conversion circuit, and the drain electrode of the first field-effect tube VT1 is inclined with described first Be electrically connected after setting resistance R1 electrical connection with the anode of the battery 230, the source electrode of the first field-effect tube VT1 and described the It is electrically connected after two biasing resistor R2 electrical connection with the grid of the first field-effect tube VT1；The grid of the second field-effect tube VT2 Pole is electrically connected between the first biasing resistor R1 and the drain electrode of the first field-effect tube VT1, second field-effect tube The source electrode of VT2 is electrically connected with the buzzer 250, the drain electrode of the second field-effect tube VT2 and the anode of the battery 230 Electrical connection.Specifically, the first field-effect tube VT1 and the second field-effect tube VT2 is N-channel reinforced insulation gate field-effect transistor.

Embodiment 3

The present embodiment the difference from example 2 is that, as shown in fig. 7, the flexible tape circuit board 200 coiling in described Extend on central conductor 110 and in a helical pattern along 110 length direction of central conductor, the light source 220 is set to described The surface that flexible tape circuit board 200 is not contacted with the central conductor 110.When light source 220 has multiple, it is coiled in centre and leads It is luminous in 360 degree on line 110 so that personnel can see from all angles it is luminous.

The encapsulated layer 300 advantageously allows the convertible form of the utility model by flexible material extrusion forming, can be curved Folding uses, so that laying is more flexible, wherein flexible tape circuit board 200 and conductor wire 100 are suitable for the bending of all directions, It can be bent and reverse towards any direction with encapsulated layer 300,300 surface of encapsulated layer is equipped with double-sided adhesive.The side of being conducive to Just the fixation of the utility model.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Claims (10)

1. a kind of visual power warning device characterized by comprising

Conductor wire (100), the conductor wire (100) include power input, central conductor (110) and power output end, described Central conductor (110) is equipped with first between the power input and the power output end at the power input It takes electric portion (120), second is equipped at the power output end and takes electric portion (130)；

Flexible tape circuit board (200), the flexible tape circuit board (200) are equipped with AC/DC conversion circuit (210) and light source (220), the input terminal of the AC/DC conversion circuit (210) is electrically connected on the central conductor (110) by lead, described The output end of AC/DC conversion circuit (210) is electrically connected with the light source (220).

2. a kind of visual power warning device according to claim 1, which is characterized in that described first takes electric portion (120) and described second takes electric portion (130) to be equipped with connecting terminal.

3. a kind of visual power warning device according to claim 1, which is characterized in that it further include encapsulated layer (300), The encapsulated layer (300) is translucent material and is formed with closed middle layer, and the middle layer is coated on the flexible tape electricity Except road plate (200) and the central conductor (110).

4. a kind of visual power warning device according to claim 1, which is characterized in that the flexible tape circuit board (200) battery (230), control switch (240) and buzzer (250) are additionally provided on, the battery (230) passes through the control System switch (240) is the buzzer (250) power supply, control switch (240) control terminal and the AC/DC conversion circuit (210) output end is electrically connected, when AC/DC conversion circuit (210) output end does not have electric current input, the control switch (240) it is closed, when AC/DC conversion circuit (210) output end has electric current input, the control switch (240) is disconnected.

5. a kind of visual power warning device according to claim 4, which is characterized in that the AC/DC conversion circuit (210) output end is electrically connected with the charging end of the battery (230).

6. a kind of visual power warning device according to claim 4, which is characterized in that the control switch (240) Including normally closed relay, the normally closed relay includes coil-end and normally-closed contact, and the coil-end constitutes the control switch (240) control terminal is electrically connected with AC/DC conversion circuit (210) output end, the battery (230), the normally-closed contact And the buzzer (250) is connected in series.

7. a kind of visual power warning device according to claim 4, which is characterized in that the control switch (240) Including control circuit, the control circuit includes the first triode, the second triode, the first biasing resistor and the second biased electrical Resistance；The base stage of first triode is electrically connected with AC/DC conversion circuit (210) output end, first triode Collector or emitter are electrically connected after being electrically connected with first biasing resistor with the anode of the battery (230), and described the The remaining not connected pole of one triode is electrically connected with the cathode of second biasing resistor and the battery (230) respectively； The base stage of second triode is electrically connected between first biasing resistor and first triode, the two or three pole The emitter of pipe is electrically connected with the buzzer (250), and the collector of second triode and the battery (230) are just Pole electrical connection.

8. a kind of visual power warning device according to claim 4, which is characterized in that the control switch (240) Including control circuit, the control circuit includes the first field-effect tube, the second field-effect tube, the first biasing resistor and the second biasing Resistance；The grid of first field-effect tube is electrically connected with AC/DC conversion circuit (210) output end, first effect Should pipe drain electrode be electrically connected with first biasing resistor after with the battery (230) anode be electrically connected, described first The source electrode of effect pipe is electrically connected after being electrically connected with second biasing resistor with the grid of first field-effect tube；Described second The grid of field-effect tube is electrically connected between first biasing resistor and the drain electrode of first field-effect tube, and described second The source electrode of effect pipe is electrically connected with the buzzer (250), drain electrode and the battery (230) of second field-effect tube Anode electrical connection.

9. a kind of visual power warning device according to claim 1 or 4, which is characterized in that the flexible tape electricity Road plate (200) coiling is prolonged on the central conductor (110) and in a helical pattern along the central conductor (110) length direction It stretches, the light source (220) is set to the surface that the flexible tape circuit board (200) does not contact with the central conductor (110).

10. a kind of visual power warning device according to claim 3, which is characterized in that the encapsulated layer (300) by Flexible material extrusion forming, encapsulated layer (300) surface are equipped with double-sided adhesive.