CN2336509Y - Automatic switching electric supply device for underground fan - Google Patents
Automatic switching electric supply device for underground fan Download PDFInfo
- Publication number
- CN2336509Y CN2336509Y CN 98217416 CN98217416U CN2336509Y CN 2336509 Y CN2336509 Y CN 2336509Y CN 98217416 CN98217416 CN 98217416 CN 98217416 U CN98217416 U CN 98217416U CN 2336509 Y CN2336509 Y CN 2336509Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- supply circuits
- contact
- ckj
- contactor
- 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
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Abstract
The utility model relates to an automatic switching electric supply device for an underground fan. The utility model comprises a body case, and a main power circuit and a subsidiary power circuit in the body case. On the basis of the prior art and under the condition of not increasing other circuit components and electric appliances, the utility model uses idle contact points of original contactors and intermediate relays in the main power circuit and the subsidiary power circuit, alters a corresponding circuit structure, and realizes the goal of automatic switching two-circuit electric supply. The utility model has the advantages of simple structure, low cost, safe operation, and convenient maintenance. The utilization is an ideal device for the underground fan electric supply.
Description
The utility model relates to a kind of electric supply installation, is specially the electric supply installation that the down-hole blower fan can automatically switch, and is mainly used in the uninterrupted power supply of blower fan under the mine.
For guaranteeing the safety of underground work, the down-hole blower fan must adopt uninterrupted power supply, needs to adopt to supply power with double circuit, to increase the coefficient of safety of ventilating.Therefore, with regard to the generation problem that power supply switches mutually that supplies power with double circuit.The main current supply circuit of the branch that supplies power with double circuit under the coal mine, auxilliary current supply circuit, main and auxiliary current supply circuit all is provided with the control switch circuit, at present, be the solution problem that power supply switches mutually that supplies power with double circuit, employing connects a switch between major-minor control switch circuit, be used to realize the to supply power with double circuit mutual switching of power supply of this switch.Adopt the way of switch, need set up this new equipment of switch first, increase expenditure, on the other hand, switch itself easily produces fault, and needing makes troubles to use to its frequent maintenance.
The purpose of this utility model provides a kind of simple in structure, reliable down-hole blower fan electric supply installation that automaticallyes switch for overcoming above-mentioned defective.
The utility model is to adopt following measure to realize: the electric supply installation that this down-hole blower fan can automatically switch, the circuit structure that has kept control switch circuit in the existing main and auxiliary power supply circuits in down-hole, under the situation of not setting up other circuit element, electric equipment, by utilizing the idle contact of original contactor, auxiliary relay in the main and auxiliary power supply circuits, change corresponding circuit structure, realize the purpose that supplies power with double circuit and automatically switch.
The utility model is compared with prior art, have simple in structure, cost is low, characteristics such as safe and reliable to operation, easy to maintenance, is the ideal equipment of down-hole blower fan power supply.
Description of drawings:
Fig. 1 is the signal of the utility model appearance structure;
Fig. 2 is the utility model circuit structure schematic diagram.
Specifically describe as follows to the utility model in conjunction with the accompanying drawings: the electric supply installation that this down-hole blower fan can automatically switch; comprise the master in housing and the housing; auxilliary power supply circuits; main; auxilliary power supply circuits all comprise by isolating commutator HGK; vacuum contactor contact CKJ; comprehensive protector of motor JDB; the major loop that resistance-capacitance protection device R-C is formed by connecting; transformer JYB and the vacuum contactor coil CKJ that links to each other and comprise mutual serial connection respectively with transformer output; the contact JDB of the comprehensive protector of motor of auxiliary relay contact ZJ and mutual serial connection; auxiliary relay coil ZJ; two control loops of starting button QA and stop button TA are at the starting button QA of main power supply circuits
1Two ends are parallel with the contact CKJ of its vacuum contactor
1-2The utility model is at the starting button QA of main power supply circuits control loop
1Two ends be parallel with the contact CKJ of auxilliary power supply circuits contactor
2-2, at the starting button QA of auxilliary power supply circuits control loop
2Two ends are parallel with the contact CKJ of main power supply circuits contactor
1-6Contact ZJ with auxilliary power supply circuits auxiliary relay
2-2, comprise vacuum contactor coil CKJ at auxilliary power supply circuits
2Control loop be serially connected with contactor normally-closed contact CKJ by main power supply circuits
1-5With auxiliary relay normally-closed contact ZJ
1-3The parallel branch that constitutes.The starting button QA of the utility model master power supply circuits control loop
1The contact CKJ of the auxilliary power supply circuits contactor of two ends parallel connection
2-2Can be by its intermediate relay ZJ
2Contact ZJ
2-4Substitute.The utility model also all is provided with 36 volts of power supply output loops that comprise interlock starting button QA and comprises the interlocked control loop of contacts of contactor, interlock stop button TA separately in main and auxiliary power supply circuits.Electric supply installation described in the utility model is based on main power supply circuits, with auxilliary power supply circuits is auxilliary, auxilliary power supply circuits are not worked when main power supply circuits normal power supply, when main power supply circuits break down, this device can automatically switch to auxilliary power supply circuits power supply, main power supply circuits recover normal after automatically switchback be that main power supply circuits are powered.Its concrete course of work is as follows: the starting button QA that presses main power supply circuits
1, intermediate relay ZJ
1Charged, its normally opened contact ZJ
1-2Closure, its vacuum contactor coil CKJ
1Charged, its main contacts CKJ
1Closure, beginning are parallel to auxilliary power supply circuits QA simultaneously to the blower fan power supply
2The contacts of contactor CKJ at two ends
1-6Also closed, make relay ZJ
2Band and self-insurance, the normally-closed contact CKJ in the auxilliary power supply circuits of electricity
1-5, ZJ
1-3Disconnecting, is that the work of auxilliary power supply circuits is ready.When main power supply circuits break down outage, its intermediate relay ZJ
1With contactor CKJ
1Dead electricity, its normally opened contact CKJ
1-6Disconnect normally-closed contact CKJ
1-5, ZJ
1-3Closure, thus make the contactor CKJ that assists power supply circuits
2Charged, its main contacts closure, auxilliary power supply circuits begin power supply, simultaneously, are parallel to main power supply circuits QA
1The contact CKJ at two ends
2-2Closure is to restore electricity as preparation after main power supply circuits fault is got rid of.After main power supply circuits restore electricity, its ZJ
1And CKJ
1Again charged, its normally-closed contact CKJ
1-5, ZJ
1-3Disconnect contactor CKJ
2Dead electricity, auxilliary power supply circuits are stopped power supply.
Claims (2)
1; the electric supply installation that a kind of down-hole blower fan can automatically switch; comprise the master in housing and the housing; auxilliary power supply circuits; main; auxilliary power supply circuits all comprise by isolating commutator HGK; vacuum contactor contact CKJ; comprehensive protector of motor JDB; the major loop that resistance-capacitance protection device R-C is formed by connecting; transformer JYB and the vacuum contactor coil CKJ that links to each other and comprise mutual serial connection respectively with transformer output; the contact JDB of the comprehensive protector of motor of auxiliary relay contact ZJ and mutual serial connection; auxiliary relay coil ZJ; two control loops of starting button QA and stop button TA are at the starting button QA of main power supply circuits
1Two ends are parallel with the contact CKJ of its vacuum contactor
1-2, it is characterized by: at the starting button QA of main power supply circuits control loop
1Two ends be parallel with the contact CKJ of auxilliary power supply circuits contactor
2-2, at the starting button QA of auxilliary power supply circuits control loop
2Two ends are parallel with the contact CKJ of main power supply circuits contactor
1-6Contact ZJ with auxilliary power supply circuits auxiliary relay
2-2, comprise vacuum contactor coil CKJ at auxilliary power supply circuits
2Control loop be serially connected with contactor normally-closed contact CKJ by main power supply circuits
1-5With auxiliary relay normally-closed contact ZJ
1-3The parallel branch that constitutes.
2, the blower fan electric supply installation that can automatically switch in down-hole as claimed in claim 1 is characterized by: the starting button QA of main power supply circuits control loop
1The contact CKJ of the auxilliary power supply circuits contactor of two ends parallel connection
2-2Can be by its intermediate relay ZJ
2Contact ZJ
2-4Substitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98217416 CN2336509Y (en) | 1998-07-23 | 1998-07-23 | Automatic switching electric supply device for underground fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98217416 CN2336509Y (en) | 1998-07-23 | 1998-07-23 | Automatic switching electric supply device for underground fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336509Y true CN2336509Y (en) | 1999-09-01 |
Family
ID=33970022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98217416 Expired - Fee Related CN2336509Y (en) | 1998-07-23 | 1998-07-23 | Automatic switching electric supply device for underground fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336509Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219792A (en) * | 2013-04-10 | 2013-07-24 | 卫斌鹏 | Duplicate-supply automatic switching circuit device |
-
1998
- 1998-07-23 CN CN 98217416 patent/CN2336509Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219792A (en) * | 2013-04-10 | 2013-07-24 | 卫斌鹏 | Duplicate-supply automatic switching circuit device |
| CN103219792B (en) * | 2013-04-10 | 2015-08-05 | 国网山西省电力公司晋城供电公司 | A kind of double supply automatic switch-over circuit device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |