CN201866548U - Power-on display device of explosion-proof electric apparatus - Google Patents
Power-on display device of explosion-proof electric apparatus Download PDFInfo
- Publication number
- CN201866548U CN201866548U CN2010202528832U CN201020252883U CN201866548U CN 201866548 U CN201866548 U CN 201866548U CN 2010202528832 U CN2010202528832 U CN 2010202528832U CN 201020252883 U CN201020252883 U CN 201020252883U CN 201866548 U CN201866548 U CN 201866548U
- Authority
- CN
- China
- Prior art keywords
- proof
- explosion
- resistance
- observation window
- flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Audible And Visible Signals (AREA)
Abstract
The utility model provides a power-on display device of an explosion-proof electric apparatus, which is applicable for a mine with explosive gas and coal dust and other hazardous places with explosive gas and coal dust such as factories and ships. Owning to high cost of the explosion-proof electric apparatus with intelligent display function, some apparatuses do not have the display function; when the apparatus is out of function, a user has difficulty in rapidly judging fault points and defining features of faults and time can be wasted by the user in seeking for the faults in a large-scale manner; besides, under the unknown power-on condition, accidents of electric shock can be easily caused during maintenance. The explosion-proof electric apparatus is composed of a lamp panel assembly and an explosion-proof observation window, wherein the explosion-proof observation window is located on the front surface of a main cavity or a wiring cavity of a shell body of the explosion-proof electric apparatus, and the lamp panel assembly is arranged at the inner side of the explosion-proof observation window and is fixed on an electric apparatus core in the shell body or is directly fixed on the explosion-proof observation window. The lamp panel assembly can be one lamp, three lamps, six lamps or a plurality of lamps, is powered by a working power supply in the explosion-proof electric apparatus and can visually display the existing of power supply voltage of corresponding parts of the electric apparatus in the form of light so as to help the user judge the working state of the electric apparatus more rapidly.
Description
Affiliated technical field
The utility model relates to a kind of flame proof electrical equipment electric display unit, is applicable to the mine that contains damp and coal dust, and the hazardous area such as factory, boats and ships of containing damp or dust.
Background technology
At present, in the flame proof electrical equipment that under containing damp and dust atmosphere, uses, because of adopting intelligent display function cost higher, so some no Presentation Function, when they break down, the user is difficult to quick failure judgement point and fault signature, and often take larger investigation mode trouble-shooting and lose time, and because of the charged maintenance electric shock accidents that causes easily in confused situation.
Summary of the invention
The utility model device is made up of lamp plate assembly 3 and explosion-proof observation window 4, explosion-proof observation window 4 is positioned at the main chamber or the wire connection cavity front of flame proof casing for electric appliances, lamp plate assembly 3 is positioned at explosion-proof observation window 4 inboards, it is characterized in that: lamp plate assembly 3 is made up of lamp plate 5, binding post 6, secondary resistance 7, one-level resistance 8, indicator lamp 9 and lead 10, and wherein secondary resistance 7 and one-level resistance 8 can be respectively the series connection of resistance or an above resistance.According to flame proof electrical equipment actual needs, the lamp plate assembly can have a lamp, three lamps, six lamps or many lamps, by the power supply of the working power in the electrical equipment, intuitively shows existing of consumer appropriate section supply voltage with the light form.
Technical solution of the present utility model is: the resistance in each independent circuits unit of display unit has series connection and two kinds of connections in parallel, secondary resistance 7 during series connection, one-level resistance 8, indicator lamp 9 connects successively, secondary resistance 7 outer termination are on binding post 6, be used to insert high-grade voltage, be connected on another binding post 6 in tap between secondary resistance 7 and the one-level resistance 8, be used to insert low-grade voltage, an end of secondary resistance 7 and one-level resistance 8 all is connected with indicator lamp 9 when in parallel, the other end of secondary resistance 7 is connected on the binding post 6, be used to insert high-grade voltage, the other end of one-level resistance 8 is connected on another binding post 6, be used to insert low-grade voltage, they all are installed on the lamp plate.In described place, present technique field, often there are height two grades of operating voltages, for example 1140V/660V, 380V/220V, 127V/36V etc.For convenience the user uses, and the utility model has designed secondary resistance and one-level resistance for you to choose.The resistance of resistance is calculated according to Ohm's law I=U/R, designs the rated current that is slightly less than indicator lamp by the electric current I of resistance R, and its two ends produce pressure drop during the indicator lamp current sinking, and then electric current and voltage by indicator lamp are maintained in the allowed band.When the normal luminous work of indicator lamp, see through explosion-proof observation window and observe the demonstration lamp plate, can judge trouble point and fault signature fast.Indicator lamp can be LED lamp or incandescent lamp.
The beneficial effects of the utility model are, after flame proof electrical equipment uses this device, whether the indicator lamp in the device exists or phase shortage with the voltage of related circuit in the light form visual indicator equipment, helps the user to judge trouble point and fault signature fast, and reduces the maintenance electric shock accidents.
Structure of the present utility model and principle are simple, and be with low cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the sectional structural map of the utility model in flame proof electrical equipment.
Among the figure: 1. wire connection cavity, 2. main chamber, 3. lamp plate assembly, 4. explosion-proof observation window.
Fig. 2 is the lamp plate assembly.
Among the figure: 5. lamp plate, 6. binding post, 7. secondary resistance, 8. one-level resistance, 9. indicator lamp, 10. lead.
Fig. 3 is an independent circuits units in series connection of the present utility model.
Fig. 4 is an independent circuits of the present utility model unit parallel connection method.
Fig. 5 is a three-phase star circuit tandem-type connection of the present utility model.
Fig. 6 is a three-phase star circuit parallel connection method of the present utility model.
Fig. 7 is a fracture three-phase star circuit tandem-type connection of the present utility model.
Fig. 8 is a fracture three-phase star circuit parallel connection method of the present utility model.
Fig. 9 is that the utility model is being controlled with the use schematic diagram in the flame proof electrical equipment.
Among the figure: 11. flame-proof type buttons.
Figure 10 is that the utility model is being controlled with the use schematic diagram in the flame proof electrical equipment.
Among the figure: 12. flame-proof type tappers.
Figure 11 is that the utility model is connecting with the use schematic diagram in the flame proof electrical equipment.
Among the figure: 13. flame-proof type latches.
Figure 12 is that the utility model is connecting with the use schematic diagram in the flame proof electrical equipment.
Among the figure: 14. flame-proof type terminal boxes.
Figure 13 is the schematic diagram that the utility model is arranged on flame proof casing for electric appliances wire connection cavity front.
Figure 14 is the schematic diagram that the utility model is arranged on front, flame proof casing for electric appliances master chamber.
The specific embodiment
In Fig. 1, device is made up of lamp plate assembly 3 and explosion-proof observation window 4, explosion-proof observation window 4 is positioned at the front in flame proof casing for electric appliances master chamber 2, and lamp plate assembly 3 is positioned at explosion-proof observation window 4 inboards, can be fixed in the housing on the electrical equipment movement or is directly fixed on the explosion-proof observation window 4.
In Fig. 2, lamp plate assembly 3 is made up of lamp plate 5, binding post 6, secondary resistance 7, one-level resistance 8, indicator lamp 9 and lead 10, indicator lamp 9 is ordered in the front of lamp plate 5, secondary resistance 7 and one-level resistance 8 are fixed in the back side of lamp plate 5, a plurality of binding posts 6 are positioned at the nearly outside of lamp plate 5, and lead 10 is connected on the binding post 6.Lamp plate 5 is a regular geometric shapes.
Fig. 3 is an independent circuits units in series connection, and resistance R 1 is an one-level resistance 8, and R2 is a secondary resistance 7, and R1 represents connecting of resistance or an above resistance respectively with R2.No. 0 binding post of a termination of indicator lamp 9, the end of other end connecting resistance R1, the end of the other end connecting resistance R2 of resistance R 1, No. 2 binding posts of another termination of resistance R 2, tap connects binding post No. 1 between resistance R 1 and the R2.One end of two leads 10 is connected on the both sides that control circuit often cut-offs mouthful respectively, again will be wherein lead 10 receive on No. 0 binding post, another root lead 10 connects No. 1 binding post when low-grade voltage uses, high-grade voltage connects No. 2 binding post when using.The resistance of R1 and R2 calculates according to Ohm's law I=U/R, and electric current that assurance indicator lamp 9 obtains under two grades of voltages of height and voltage are in allowed band.
Fig. 4 is an independent circuits unit parallel connection method, and resistance R 1 is an one-level resistance 8, and R2 is a secondary resistance 7, and R1 represents connecting of resistance or an above resistance respectively with R2.The end of R1, R2 all is connected with an end of indicator lamp 9, No. 0 binding post of another termination of indicator lamp 9, No. 1 binding post of another termination of R1, No. 2 binding posts of another termination of R2, No. 2 binding post is used to insert high-grade voltage, so the corresponding R1 that is higher than of the resistance of R2.
Fig. 5 is a three-phase star circuit tandem-type connection, and the outer end of indicator lamp 9 in the independent circuits units in series connection among three Fig. 3 is formed in parallel.Fig. 6 is a three-phase star circuit parallel connection method, and the outer end of indicator lamp 9 in the independent circuits unit parallel connection method among three Fig. 4 is formed in parallel.Usually use X1, X2, X3 or L1, L2, L3 in the electric power as three phase mains end phase sequence mark, in Fig. 5 and Fig. 6, No. 1, No. 2, No. 3 binding post is used to insert low-grade three-phase voltage, No. 4, No. 5, No. 6 binding post is used to insert high-grade three-phase voltage, and they link to each other with three phase mains X1, X2, X3 by lead 10.R1～R6 represents the series connection of resistance or an above resistance respectively.
Fig. 7 is a fracture three-phase star circuit tandem-type connection, and the two ends that the circuit of three-phase star circuit tandem-type connection among two Fig. 5 are connected to three phase mains work fracture respectively form.Fig. 8 is a fracture three-phase star circuit parallel connection method, and the two ends that the circuit of three-phase star circuit parallel connection method among two Fig. 6 are connected to three phase mains work fracture respectively form.The fracture front end is a power end, and end is a load end, uses D1, D2, D3 or U, V, W as load end phase sequence mark in the electric power usually.Power end in Fig. 7 and Fig. 8, No. 1, No. 2, No. 3 binding post is used to insert low-grade three-phase voltage, and No. 4, No. 5, No. 6 binding post is used to insert high-grade three-phase voltage.At load end, No. 7, No. 8, No. 9 binding post is used to insert low-grade three-phase voltage, and No. 10, No. 11, No. 12 binding post is used to insert high-grade three-phase voltage.R1～R12 represents the series connection of resistance or an above resistance respectively.
In Fig. 9, Figure 10, explosion-proof observation window 4 is loaded on the front of controls such as flame-proof type button 11 or flame-proof type tapper 12 with flame proof electrical equipment, the independent circuits unit is assembled into the inboard that is loaded on explosion-proof observation window 4 behind the lamp plate assembly 3, often cut-off a side of mouth in the control circuit and receive on the binding post 6 of indicator lamp 9 outer ends in the independent circuits unit, often cut-off the opposite side of mouth and receive on the corresponding binding post 6 of voltage gear with lead 10 with lead 10.Control is generally used for control far away with flame proof electrical equipment, just can judge the controlled electrical equipment in a distant place by the indicator lamp 9 on observation the utility model and whether have operating voltage.Because the operating current of indicator lamp 9 is faint, can not cause control circuit often to cut-off the short circuit of mouth.
In Figure 11, Figure 12, explosion-proof observation window 4 is loaded on flame-proof type latch 13 or flame-proof type terminal box 14 etc. and connects the front of using flame proof electrical equipment, with the outer end of indicator lamp 9 in three independent circuits unit and be unified into the three-phase star circuit, be loaded in the explosion-proof observation window 4 after being assembled into lamp plate assembly 3, one end of three leads 10 is connected respectively on the interior three-phase alternating-current supply of electrical equipment, the other end is received on the corresponding binding post 6 of voltage gear, and its indicator lamp 9 all indicates corresponding phase sequence mark.By observing the indicator lamp 9 of representing three phase mains X1, X2, X3 on the lamp plate assembly 3, can judge whether have voltage or phase shortage.
At Figure 13, among Figure 14, explosion-proof observation window 4 is arranged on the main chamber or the wire connection cavity front of the flame-proof type switch with three-phase fracture break-make operating characteristic, two three-phase star circuits are assemblied on the same lamp plate assembly 3, lamp plate assembly 3 is installed on explosion-proof observation window 4 inboards, one of three leads 10 is terminated on the three-phase alternating-current supply on one of them three-phase star circuit, the other end is received on the corresponding binding post 6 of voltage gear, one of three leads 10 on another three-phase star circuit are terminated in the threephase load, the other end of three leads 10 is received on the corresponding binding post 6 of voltage gear, and its indicator lamp 9 all indicates corresponding phase sequence mark.By observing the indicator lamp 9 of lamp plate assembly 3 previous generation's Table X 1, X2, X3, can judge power end and whether have voltage or phase shortage, and observe the indicator lamp 9 of representing D1, D2, D3, can judge load end and whether connect electricly or phase shortage.
Claims (5)
1. a flame proof electrical equipment has electric display unit, form by lamp plate assembly (3) and explosion-proof observation window (4), explosion-proof observation window (4) is positioned at the main chamber or the wire connection cavity front of flame proof casing for electric appliances, lamp plate assembly (3) is positioned at explosion-proof observation window (4) inboard, it is characterized in that: lamp plate assembly (3) is made up of lamp plate (5), binding post (6), secondary resistance (7), one-level resistance (8), indicator lamp (9) and lead (10), and wherein secondary resistance (7) and one-level resistance (8) can be respectively the series connection of resistance or an above resistance.
2. flame proof electrical equipment according to claim 1 has electric display unit, it is characterized in that: the resistance in each independent circuits unit of display unit has series connection and two kinds of connections in parallel, secondary resistance (7) during series connection, one-level resistance (8), indicator lamp (9) connects successively, secondary resistance (7) outer termination is on binding post (6), be used to insert high-grade voltage, tap is connected on another binding post (6) between secondary resistance (7) and one-level resistance (8), be used to insert low-grade voltage, an end of secondary resistance (7) and one-level resistance (8) all is connected with indicator lamp (9) when in parallel, the other end of secondary resistance (7) is connected on the binding post (6), be used to insert high-grade voltage, the other end of one-level resistance (8) is connected on another binding post (6), is used to insert low-grade voltage.
3. flame proof electrical equipment according to claim 1 and 2 has electric display unit, it is characterized in that: explosion-proof observation window (4) is loaded on the front of controls such as flame-proof type button (11) or flame-proof type tapper (12) with flame proof electrical equipment, the independent circuits unit is assembled into the inboard that is loaded on explosion-proof observation window (4) behind the lamp plate assembly (3), often cut-off a side of mouth in the control circuit and receive on the binding post (6) of indicator lamp in the independent circuits unit (9) outer end, often cut-off the opposite side of mouth and receive on the corresponding binding post of voltage gear (6) with lead (10) with lead (10).
4. flame proof electrical equipment according to claim 1 and 2 has electric display unit, it is characterized in that: explosion-proof observation window (4) is loaded on flame-proof type latch (13) or flame-proof type terminal box (14) etc. and connects the front of using flame proof electrical equipment, with the outer end of indicator lamp (9) in three independent circuits unit and be unified into the three-phase star circuit, be loaded in the explosion-proof observation window (4) after being assembled into lamp plate assembly (3), one end of three leads (10) is connected respectively on the interior three-phase alternating-current supply of electrical equipment, the other end is received on the corresponding binding post of voltage gear (6), and its indicator lamp (9) all indicates corresponding phase sequence mark.
5. flame proof electrical equipment according to claim 1 and 2 has electric display unit, it is characterized in that: explosion-proof observation window (4) is arranged on the main chamber or the wire connection cavity front of the flame-proof type switch with three-phase fracture break-make operating characteristic, two three-phase star circuits are assemblied on the same lamp plate assembly (3), lamp plate assembly (3) is installed on explosion-proof observation window (4) inboard, one of three leads (10) is terminated on the three-phase alternating-current supply on one of them three-phase star circuit, the other end is received on the corresponding binding post of voltage gear (6), one of three leads (10) on another three-phase star circuit are terminated in the threephase load, the other end of three leads (10) is received on the corresponding binding post of voltage gear (6), and its indicator lamp (9) all indicates corresponding phase sequence mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202528832U CN201866548U (en) | 2010-06-30 | 2010-06-30 | Power-on display device of explosion-proof electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202528832U CN201866548U (en) | 2010-06-30 | 2010-06-30 | Power-on display device of explosion-proof electric apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866548U true CN201866548U (en) | 2011-06-15 |
Family
ID=44137702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202528832U Expired - Fee Related CN201866548U (en) | 2010-06-30 | 2010-06-30 | Power-on display device of explosion-proof electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022939A (en) * | 2012-10-09 | 2013-04-03 | 山西邦奥伟业半导体照明有限公司 | Flame-proof type LED (Light Emitting Diode) display junction box for mine |
| CN108538670A (en) * | 2017-03-02 | 2018-09-14 | 北京石油化工学院 | Mine safety anti-blast light switch |
-
2010
- 2010-06-30 CN CN2010202528832U patent/CN201866548U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022939A (en) * | 2012-10-09 | 2013-04-03 | 山西邦奥伟业半导体照明有限公司 | Flame-proof type LED (Light Emitting Diode) display junction box for mine |
| CN108538670A (en) * | 2017-03-02 | 2018-09-14 | 北京石油化工学院 | Mine safety anti-blast light switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203192715U (en) | Breaker | |
| CN200979592Y (en) | An inspection apparatus for single-phase load of electric meter | |
| CN201866548U (en) | Power-on display device of explosion-proof electric apparatus | |
| CN203366568U (en) | Low-voltage fault-clearing program-controlled simulation device | |
| CN202633777U (en) | Multifunctional second-stage distribution box and power distribution equipment comprising same | |
| CN115639424A (en) | Solution for testing power supply and wiring mode of power supply of charging pile | |
| CN201975843U (en) | Electric vehicle charging socket with charging state display function | |
| CN203705623U (en) | Lamp test circuit and lamp test instrument having same | |
| CN202331193U (en) | Intelligent visual magnetic levitation controller test system | |
| CN205562697U (en) | Transformer tripping operation logic testing appearance | |
| CN207115180U (en) | A kind of integrated fault detects control box | |
| CN205017089U (en) | On -vehicle power ware of checking meter of multipurpose | |
| CN2187313Y (en) | Safety power supply detector | |
| CN216301086U (en) | Portable turnout operating device | |
| CN214473524U (en) | Intelligent transformer test junction box | |
| CN204732043U (en) | Automobile circuit line examination experimental box | |
| CN220820132U (en) | Standardized environmental protection gas-insulated looped netowrk cabinet short-term test frock | |
| CN203218669U (en) | Special conversion socket for electromagnetic compatibility test | |
| CN202616699U (en) | Electric appliance power supply assembly with voltage indication function | |
| CN202678644U (en) | Multifunctional three-phase four-pole plug | |
| CN214409250U (en) | 12 heart yearn switches on frock testing arrangement | |
| CN210534220U (en) | Auxiliary working voltage testing device | |
| CN220231876U (en) | Direct current switch machine test box | |
| CN202733482U (en) | Movable explosion-proof lighting device | |
| CN215005645U (en) | Test tool for auxiliary inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20130630 |