CN205509284U - Low -voltage power distribution cabinet - Google Patents
Low -voltage power distribution cabinet Download PDFInfo
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- CN205509284U CN205509284U CN201620240704.0U CN201620240704U CN205509284U CN 205509284 U CN205509284 U CN 205509284U CN 201620240704 U CN201620240704 U CN 201620240704U CN 205509284 U CN205509284 U CN 205509284U
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- distribution cabinet
- transmitting module
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Abstract
The utility model discloses a low -voltage power distribution cabinet aims at providing one kind and has the low -voltage power distribution cabinet that safety inspection reported to the police and indicates, has solved the removal in -process to device in the switch board, produces the problem of potential safety hazard easily, and its technical scheme main points are including the rack, set up the condenser in the rack, be provided with warning circuit on the frame of rack, warning circuit lean on micro -gap switch, control circuit, the buzzer at off -state including supported by the condenser, micro -gap switch and control circuit are connected for test capacitor ware location State, and carry triggering signal to control circuit, control circuit and buzzer connection for receive control circuit's signal and control the buzzer and realize the sound production warning.
Description
Technical field
This utility model relates to power distribution cabinet equipment technical field, particularly to low-voltage distribution cabinet.
Background technology
Low-voltage distribution cabinet be for rated current be exchange 50Hz, rated voltage is that the distribution system of 380v is as power source, control action is played in electric energy conversion to illumination and distribution simultaneously, generally with high-tension electricity in low-voltage distribution cabinet, this equipment can not be dismantled and safeguard if not professional.
Low-voltage distribution cabinet can arrange the relatively large capacitor of multiple ratio, owing to electrical equipment and load are often inductive load, the impact for electrical network is relatively big, needs to arrange capacitor in low-voltage distribution cabinet, being connected in parallel on electrical network by capacitor, an effect compensated is played in the electric power transmission to electrical network.If capacitor arbitrarily moves, easily cause the paralysis of low-voltage distribution cabinet, so usually will not arbitrarily operate this capacitor, but there is capacitor faults the most afterwards so that capacitor locations changes, although or can use, but there is potential safety hazard, and this kind of situation is not easy to find, need staff's timing detection, it is also possible to testing staff's carelessness do not find, reduces the security performance of low-voltage distribution cabinet.
At present; some electric shock phenomenons often occur; mainly due to layman, low-voltage distribution cabinet is carried out incorrect operation; and wrongful carrying low-voltage distribution cabinet easily causes the fault of power distribution cabinet, and in the moving process of device in power distribution cabinet, it may appear that carelessness; management personnel are not easy to find potential safety hazard; need an effect warned, improve the vigilance of operator, it is therefore desirable to this is carried out one and is effectively improved.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide a kind of low-voltage distribution cabinet with safety detecting alarm prompting.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of low-voltage distribution cabinet, including rack, the capacitor that is arranged in rack, being provided with warning circuit on the frame of described rack, described warning circuit includes with capacitor against being in the microswitch of normally off, control circuit, buzzer；
Described microswitch is connected with control circuit, for sensing capacitor location status, and triggering signal is delivered to control circuit；
Described control circuit is connected with buzzer, in order to receive the signal of control circuit and to control buzzer and realize sounding alarm.
By above-mentioned setting, on the capacitor side of power distribution cabinet, warning circuit is set, and the structure of this warning circuit is by checking whether capacitor has the skew on position to carry out judging and warning, the side of capacitor can be resisted against by microswitch, it is constantly subjected to the pressure of capacitor and is off, thus warning of not setting out, if and capacitor breaks down, position offsets, so that the distress resolves of microswitch, or the off-state of microswitch disappears, trigger buzzer by control circuit to report to the police, such that it is able to be effectively improved staff's vigilant degree in operation.
Can be preferably as concrete scheme of the present utility model: described microswitch is provided with pressure transducer, described pressure transducer is connected with without line drive circuit, described it is connected with wireless signal transmitting module without line drive circuit, wherein detect that pressure is then by driving wireless signal transmitting module without line drive circuit when pressure transducer, it is achieved launch wireless signal.
By above-mentioned setting, microswitch arranges pressure transducer further, such that it is able to improve the accuracy of detection, and, pressure transducer output analogue signal, can be by wireless signal transmitting module being driven without line drive circuit when its pressure experienced when, so that wireless signal transmitting module can launch wireless signal always, such that it is able to receiver's equipment normal operation of notification signal, if wireless signal cannot accept, then explanation equipment breaks down and needs to carry out hand inspection and maintenance.
Can be preferably as concrete scheme of the present utility model: described wireless signal transmitting module is provided with reset key, described reset key is used for the wireless signal transmitting module that resets.
By above-mentioned setting, reset key can again connect power supply and reset to the signal realizing wireless signal transmitting module.Improve the working life of wireless signal transmitting module.
Can be preferably as concrete scheme of the present utility model: described include receiving the comparator of pressure transducer output signal without line drive circuit, connect the reference cell of comparator end of oppisite phase, be connected to the light-coupled isolation unit of comparator output terminal, the outfan of described light-coupled isolation unit connects wireless signal transmitting module.
By above-mentioned setting, without line drive circuit by effective signal comparison process and the isolation processing of height power supply, such that it is able to improve the job stability of circuit and improve the service life of circuit.
In sum, this utility model has the advantages that the work safety improving low-voltage distribution cabinet, and can check the state of internal capacitor, and can effectively report to the police, and notifies attendant in time.
Accompanying drawing explanation
Fig. 1 is the mechanical construction drawing of embodiment；
Fig. 2 is warning circuit schematic diagram；
Fig. 3 is wireless driving circuit principle figure；
Fig. 4 is wireless signal transmitting module circuit theory diagrams.
In figure 1, rack；2, capacitor；3, warning circuit；4, microswitch；5, control circuit；6, buzzer；7, pressure transducer；8, without line drive circuit；9, wireless signal transmitting module；10, reset key；11, comparator；12, reference cell；13, light-coupled isolation unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment 1: as it is shown in figure 1, a kind of low-voltage distribution cabinet, including rack 1, the capacitor 2 that is arranged in rack 1.Arranging capacitor 2 in rack 1 is to carry out a compensating action to electrical network, and, the delta connection electrical connection that capacitor 2 uses, rack 1 is provided with cabinet door, front and back has, can open to both sides.It is provided with warning circuit 3 on the frame of rack 1 simultaneously.As in figure 2 it is shown, warning circuit 3 includes by capacitor 2 against the microswitch 4 being off, control circuit 5, buzzer 6.Microswitch 4 is connected with control circuit 5, for sensing capacitor 2 location status, and triggering signal is delivered to control circuit 5.Control circuit 5 is connected with buzzer 6, in order to receive the signal of control circuit 5 and to control buzzer 6 and realize sounding alarm.
Controllable silicon SCR, resistance R1 and the circuit of microswitch 4AN composition control machines；Chip IC 1, resistance R2, NPN audion VT1, PNP triode VT2 and the circuit of buzzer 6BL composition simulation police whistle sound.The model of chip IC is KD-9561.At ordinary times, microswitch 4AN is by the compressing of capacitor 2 so that it is two normally-closed contacts disconnect, controllable silicon SCR Triggerless and block, alarm does not works.When capacitor 2 offsets when, microswitch 4AN two contact closes automatically, the triggering end of controllable silicon SCR obtains triggering signal through resistance R1 from positive source, controllable silicon SCR turns on, chip IC 1 is energized work, the police whistle sound signal of telecommunication of its outfan output, through NPN audion VT1, the power amplification of PNP triode VT2, promotes speaker to send loud and clear chimes of doom.Now only have attendant just can be able to cut off the electricity supply by disconnecting switch S, trigger buzzer 6 by control circuit 5 and report to the police, such that it is able to be effectively improved staff's vigilant degree in operation.
Embodiment two: circuit implementation is as shown in Figure 3,4, microswitch 4 is provided with pressure transducer 7, pressure transducer 7 is connected with without line drive circuit 8, it is connected with wireless signal transmitting module 9 without line drive circuit 8, wherein detect that pressure is then by driving wireless signal transmitting module 9 without line drive circuit 8 when pressure transducer 7, it is achieved launch wireless signal.Including receiving the comparator 11 of pressure transducer 7 output signal without line drive circuit 8, connect the reference cell 12 of comparator 11 end of oppisite phase, be connected to the light-coupled isolation unit 13 of comparator 11 outfan, the outfan of light-coupled isolation unit 13 connects wireless signal transmitting module 9.Wireless signal transmitting module 9 is provided with reset key 10, and reset key 10 is used for the wireless signal transmitting module 9 that resets.
As shown in Figure 3, described microswitch 4 is provided with pressure transducer 7, pressure transducer 7 is arranged in microswitch 4, pressure transducer 7 can be squeezed, described pressure transducer 7 is connected with without line drive circuit 8, described it is connected with wireless signal transmitting module 9 without line drive circuit 8, wherein detect that pressure is then by driving wireless signal transmitting module 9 without line drive circuit 8 when pressure transducer 7, launch wireless signal, now pressure transducer 7 is electric by making wireless signal transmitting module 9 obtain without line drive circuit 8, now wireless signal transmitting module 9 just can send signal always, when but if buzzer 6 fault cannot be reported to the police, just can send signal by wireless signal transmitting module 9, and when product leaves installation ground or leaves warehouse, wireless signal will allow manager know.
Microswitch 4 arranges pressure transducer 7 further, such that it is able to improve the accuracy of detection, and, pressure transducer 7 exports analogue signal, can be by wireless signal transmitting module 9 being driven without line drive circuit 8 when its pressure experienced when, so that wireless signal transmitting module 9 can launch wireless signal always, such that it is able to receiver's equipment normal operation of notification signal, if wireless signal cannot accept, then explanation equipment breaks down and needs to carry out hand inspection and maintenance.Reset key 10 can again connect power supply and reset to the signal realizing wireless signal transmitting module 9.Improve the working life of wireless signal transmitting module 9.Without line drive circuit 8 by effective signal comparison process and the isolation processing of height power supply, such that it is able to improve the job stability of circuit and improve the service life of circuit.
Wireless signal transmitting module 9 is provided with reset key 10, and reset key 10 is used for the wireless signal transmitting module 9 that resets, it is possible to achieve the self-recovery of wireless signal transmitting module 9, prevents electromagnetic interference from causing intermittent defect, improves the reliability of equipment.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Claims (4)
1. a low-voltage distribution cabinet, including rack (1), the capacitor (2) that is arranged in rack (1), it is characterized in that: be provided with warning circuit (3) on the frame of described rack (1), described warning circuit (3) includes by capacitor (2) against the microswitch (4) being off, control circuit (5), buzzer (6)；
Described microswitch (4) is connected with control circuit (5), for sensing capacitor (2) location status, and triggering signal is delivered to control circuit (5)；
Described control circuit (5) is connected with buzzer (6), in order to receive the signal of control circuit (5) and to control buzzer (6) and realize sounding alarm.
Low-voltage distribution cabinet the most according to claim 1, it is characterized in that: described microswitch (4) is provided with pressure transducer (7), described pressure transducer (7) is connected with without line drive circuit (8), described it is connected with wireless signal transmitting module (9) without line drive circuit (8), wherein detect that pressure is then by driving wireless signal transmitting module (9) without line drive circuit (8) when pressure transducer (7), it is achieved launch wireless signal.
Low-voltage distribution cabinet the most according to claim 2, is characterized in that: described wireless signal transmitting module (9) is provided with reset key (10), and described reset key (10) is used for the wireless signal transmitting module (9) that resets.
Low-voltage distribution cabinet the most according to claim 2, it is characterized in that: described include receiving the comparator (11) of pressure transducer (7) output signal without line drive circuit (8), connect the reference cell (12) of comparator (11) end of oppisite phase, be connected to the light-coupled isolation unit (13) of comparator (11) outfan, the outfan of described light-coupled isolation unit (13) connects wireless signal transmitting module (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620240704.0U CN205509284U (en) | 2016-03-25 | 2016-03-25 | Low -voltage power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620240704.0U CN205509284U (en) | 2016-03-25 | 2016-03-25 | Low -voltage power distribution cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN205509284U true CN205509284U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620240704.0U Active CN205509284U (en) | 2016-03-25 | 2016-03-25 | Low -voltage power distribution cabinet |
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| CN (1) | CN205509284U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896160A (en) * | 2020-07-23 | 2020-11-06 | 张忠良 | Scaffold support pressure detection system and application method thereof |
-
2016
- 2016-03-25 CN CN201620240704.0U patent/CN205509284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896160A (en) * | 2020-07-23 | 2020-11-06 | 张忠良 | Scaffold support pressure detection system and application method thereof |
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