CN202424127U - Overheating open-phase protective device for textile motor - Google Patents
Overheating open-phase protective device for textile motor Download PDFInfo
- Publication number
- CN202424127U CN202424127U CN2011205278848U CN201120527884U CN202424127U CN 202424127 U CN202424127 U CN 202424127U CN 2011205278848 U CN2011205278848 U CN 2011205278848U CN 201120527884 U CN201120527884 U CN 201120527884U CN 202424127 U CN202424127 U CN 202424127U
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- switch
- main contactor
- phase
- textile motor
- normally opened
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Abstract
The utility model relates to an overheating open-phase protective device for a textile motor. The overheating open-phase protective device comprises a textile motor connected with a three-phase alternating current and a button type switch SB2, a main contactor and a PTC (positive temperature coefficient) thermistor, wherein the PTC thermistor is arranged in a connection box of the textile motor, the three-phase alternating current is connected with a drive end of the main contactor through the button type switch SB2, the other drive end of the main contactor is connected with a zero line, a three-phase input of the three-phase alternating current and the textile motor are respectively connected with a normally open contact switch of the main contactor, the other normally open contact switch of the main contactor is connected with the PTC thermistor to form a series circuit, and the series circuit and the button type switch SB2 are connected in parallel. According to the utility model, overheating temperature rise and open-phase power supply of the textile motor can be monitored, so that the textile motor can automatically stop running once overheating or open-phase occurs and is then maintained by maintenance personnel, thus the purposes of overheating protection and open-phase protection of the textile motor can be realized and the service life of the textile motor can be effectively prolonged.
Description
Technical field
The utility model relates to a kind of spinning equipment, relates in particular to the overheated phase-lacking protective device of a kind of textile motor.
Background technology
The weaving workshop is moving a large amount of textile motors, and wherein quite a few still is powerful, raw-material rising steadily; Make that the purchase and the maintenance cost of textile motor are constantly soaring; Therefore need effectively protect textile motor, its temperature, voltage, electric current and phase shortage etc. are carried out omnibearing monitoring, make textile motor operate in controllable state; Thereby reach the purpose that reduces fault, perhaps fault is eliminated in bud.
Summary of the invention
The utility model mainly solves original textile motor and lacks protective device, breaks down easily, increases the technical problem of maintenance cost; Provide a kind of textile motor overheated phase-lacking protective device; It can be monitored the overheated intensification of textile motor, in case overheated automatic textile motor out of service reaches the purpose of textile motor being carried out overtemperature protection; Thereby reduce the textile motor fault, prolong its useful life.
Another purpose of the utility model provides the overheated phase-lacking protective device of a kind of textile motor; It can be monitored the whether phase shortage power supply of textile motor; In case the three-phase alternating current of power supply has a phase phase shortage, just the automatic textile motor out of service of ability reaches the purpose of textile motor being carried out open-phase protection; Thereby reduce the textile motor fault, prolong its useful life.
The above-mentioned technical problem of the utility model mainly is able to solve through following technical proposals: the utility model comprises textile motor M and push-button switch SB2, main contactor KM and the PTC thermistor R that links to each other with three-phase alternating current; Described PTC thermistor R is located in the terminal box of described textile motor M; Described three-phase alternating current links to each other through the drive end of push-button switch SB2 and main contactor KM; Another drive end connecting to neutral line N of main contactor KM; Described main contactor KM has four main contactor normally opened contact K switch M1, KM2, KM3 and KM4; The three-phase input R of three-phase alternating current, S, each process main contactor normally opened contact K switch M2 of T, KM3, KM4 link to each other series circuit and described push-button switch SB2 parallel connection that main contactor normally opened contact K switch M1 links to each other with PTC thermistor R and constitutes with described textile motor M.Click push-button switch SB2; The outage at once of switching on again of push-button switch SB2 moment, when its energising, main contactor KM gets moment; Main contactor normally opened contact K switch M1, KM2, KM3, KM4 adhesive; Textile motor M starts, and what main contactor normally opened contact K switch M1 linked to each other with PTC thermistor R that the series circuit of formation keeping main contactor KM must be electric, and textile motor turns round continuously.PTC thermistor inside is the normal temperature conducting state.When textile motor load increases the weight of, perhaps textile motor is downright bad because of bearing, causes running current to surpass rated current; This moment, the textile motor temperature rise was accelerated, and reached the value that the PTC thermistor sets, and then PTC thermistor transient resistance becomes infinitely great; Thereby cut off control loop and make main contactor KM dead electricity; Then main contactor normally opened contact K switch M2, KM3, KM4 separate, and textile motor quits work because of dead electricity, reaches the purpose of overtemperature protection.
As preferably; The overheated phase-lacking protective device of described textile motor comprises relay K A, KB and KC; The drive end of relay K A, KB and KC links to each other with three inputs of described textile motor M respectively; The equal connecting to neutral line of another drive end N of relay K A, KB and KC, the normally opened contact K switch C1 of the normally opened contact K switch A1 of relay K A and the normally opened contact K switch B1 of relay K B, relay K C are in series and are connected on main contactor normally opened contact K switch M1 and link to each other with PTC thermistor R in the series circuit that constitutes.When three-phase alternating current has any phase phase shortage; A dead electricity is then arranged among relay K A, KB and the KC; Have one to be in released state thereby make among the normally opened contact K switch C1 of normally opened contact K switch B1 and relay K C of normally opened contact K switch A1, relay K B of relay K A, thereby cut off control loop and make main contactor KM dead electricity, then main contactor normally opened contact K switch M2, KM3, KM4 separate; Textile motor quits work because of dead electricity, reaches the purpose of open-phase protection.
As preferably; The three-phase of described three-phase alternating current input R, S, T are provided with total lock switch QS and fuse FU1, FU2, FU3; R cross streams electricity links to each other with described main contactor normally opened contact K switch M2 through total lock switch QS, fuse FU1; S cross streams electricity links to each other with described main contactor normally opened contact K switch M3 through total lock switch QS, fuse FU2, and T cross streams electricity links to each other with described main contactor normally opened contact K switch M4 through total lock switch QS, fuse FU3.The break-make that can control whole device and textile motor through total lock switch QS easily is electric, and fuse FU1, FU2, FU3 play a very good protection, and make not overvoltage of supply power voltage, guarantees that the textile motor operation is more safe and reliable.
As preferably, be connected in series with fuse FU4 and switch S B1 between described three-phase alternating current and the push-button switch SB2.
The beneficial effect of the utility model is: it can be monitored the overheated intensification and the phase shortage power supply of textile motor; In case the automatic textile motor out of service of overheated or phase shortage; Keep in repair by the maintenance personal; Reach the purpose of textile motor being carried out overtemperature protection and open-phase protection, perhaps fault is eliminated in bud, effectively prolong the useful life of textile motor thereby reduce the textile motor fault.
Description of drawings
Fig. 1 is a kind of circuit theory diagrams of the utility model.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically the technical scheme of the utility model.
Embodiment: the overheated phase-lacking protective device of the textile motor of present embodiment, as shown in Figure 1, comprise push-button switch SB1, SB2, main contactor KM, PTC thermistor R and relay K A, KB, KC and total lock switch QS, fuse FU1, FU2, FU3, FU4.PTC thermistor R is installed in the terminal box of textile motor M.Main contactor KM has four main contactor normally opened contact K switch M1, KM2, KM3 and KM4.Give three-phase input R, S, the T of three-phase alternating current of textile motor M power supply last total lock switch QS and fuse FU1, FU2, the FU3 of being equipped with; R cross streams electricity links to each other with main contactor normally opened contact K switch M2 through total lock switch QS, fuse FU1; S cross streams electricity links to each other with main contactor normally opened contact K switch M3 through total lock switch QS, fuse FU2; T cross streams electricity links to each other with main contactor normally opened contact K switch M4 through total lock switch QS, fuse FU3, and each links to each other with textile motor M again for main contactor normally opened contact K switch M2, KM3, KM4.Fuse FU4 links to each other with the rear end of fuse FU2, and fuse FU4 links to each other through the drive end of push-button switch SB1, push-button switch SB2 and main contactor KM again, another drive end connecting to neutral line N of main contactor KM.The drive end of relay K A, KB and KC links to each other with three inputs of textile motor M respectively, the equal connecting to neutral line of another drive end N of relay K A, KB and KC.The normally opened contact K switch C1 of the normally opened contact K switch A1 of relay K A and the normally opened contact K switch B1 of relay K B, relay K C and main contactor normally opened contact K switch M1, PTC thermistor R link to each other and constitute series circuit, this series circuit and push-button switch SB2 parallel connection.Push-button switch SB2 clicks the switch that the moment energising is cut off the power supply again at once.
The course of work: press total lock switch QS; Click push-button switch SB2 again, the outage at once of switching on again of push-button switch SB2 moment when its energising moment; Main contactor KM gets; Main contactor normally opened contact K switch M2, KM3, KM4 adhesive, textile motor M starts, and relay K A, KB and KC get; The then normally opened contact K switch C1 adhesive of the normally opened contact K switch B1 of the normally opened contact K switch A1 of relay K A, relay K B and relay K C; Also adhesive of main contactor normally opened contact K switch M1, it is electric that the series circuit of the normally opened contact K switch C1 of the normally opened contact K switch A1 of relay K A, the normally opened contact K switch B1 of relay K B, relay K C and main contactor normally opened contact K switch M1, the continuous formation of PTC thermistor R is being kept getting of main contactor KM, and textile motor turns round continuously.PTC thermistor inside is the normal temperature conducting state.When textile motor load increases the weight of, perhaps textile motor is downright bad because of bearing, causes running current to surpass rated current; This moment, the textile motor temperature rise was accelerated, and reached the value that the PTC thermistor sets, and then PTC thermistor transient resistance becomes infinitely great; Thereby cut off control loop and make main contactor KM dead electricity; Then main contactor normally opened contact K switch M2, KM3, KM4 separate, and textile motor quits work because of dead electricity, reaches the purpose of overtemperature protection.When three-phase alternating current has any phase phase shortage; A dead electricity is then arranged among relay K A, KB and the KC; Have one to be in released state thereby make among the normally opened contact K switch C1 of normally opened contact K switch B1 and relay K C of normally opened contact K switch A1, relay K B of relay K A, thereby cut off control loop and make main contactor KM dead electricity, then main contactor normally opened contact K switch M2, KM3, KM4 separate; Textile motor quits work because of dead electricity, reaches the purpose of open-phase protection.Behind the textile motor autostop, the maintenance personal can in time carry out corresponding maintenance, can guarantee after the maintenance well that textile motor continues normal operation, perhaps fault is eliminated in bud thereby reduce the textile motor fault, effectively prolongs the useful life of textile motor.
Claims (4)
1. overheated phase-lacking protective device of textile motor; Comprise the textile motor M that links to each other with three-phase alternating current; It is characterized in that comprising push-button switch SB2, main contactor KM and PTC thermistor R; Described PTC thermistor R is located in the terminal box of described textile motor M; Described three-phase alternating current links to each other through the drive end of push-button switch SB2 and main contactor KM, another drive end connecting to neutral line N of main contactor KM, and described main contactor KM has four main contactor normally opened contact K switch M1, KM2, KM3 and KM4; The three-phase input R of three-phase alternating current, S, each process main contactor normally opened contact K switch M2 of T, KM3, KM4 link to each other series circuit and described push-button switch SB2 parallel connection that main contactor normally opened contact K switch M1 links to each other with PTC thermistor R and constitutes with described textile motor M.
2. the overheated phase-lacking protective device of textile motor according to claim 1; It is characterized in that comprising relay K A, KB and KC; The drive end of relay K A, KB and KC links to each other with three inputs of described textile motor M respectively; The equal connecting to neutral line of another drive end N of relay K A, KB and KC, the normally opened contact K switch C1 of the normally opened contact K switch A1 of relay K A and the normally opened contact K switch B1 of relay K B, relay K C are in series and are connected on main contactor normally opened contact K switch M1 and link to each other with PTC thermistor R in the series circuit that constitutes.
3. the overheated phase-lacking protective device of textile motor according to claim 1 and 2; Three-phase input R, S, the T that it is characterized in that described three-phase alternating current is provided with total lock switch QS and fuse FU1, FU2, FU3; R cross streams electricity links to each other with described main contactor normally opened contact K switch M2 through total lock switch QS, fuse FU1; S cross streams electricity links to each other with described main contactor normally opened contact K switch M3 through total lock switch QS, fuse FU2, and T cross streams electricity links to each other with described main contactor normally opened contact K switch M4 through total lock switch QS, fuse FU3.
4. the overheated phase-lacking protective device of textile motor according to claim 1 and 2 is characterized in that being connected in series with between described three-phase alternating current and the push-button switch SB2 fuse FU4 and switch S B1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205278848U CN202424127U (en) | 2011-12-16 | 2011-12-16 | Overheating open-phase protective device for textile motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205278848U CN202424127U (en) | 2011-12-16 | 2011-12-16 | Overheating open-phase protective device for textile motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202424127U true CN202424127U (en) | 2012-09-05 |
Family
ID=46748852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205278848U Expired - Fee Related CN202424127U (en) | 2011-12-16 | 2011-12-16 | Overheating open-phase protective device for textile motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202424127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746334A (en) * | 2014-02-18 | 2014-04-23 | 常州江南电力环境工程有限公司 | Electronic protection device for heater |
| CN105305384A (en) * | 2015-09-15 | 2016-02-03 | 国网山东胶州市供电公司 | Line default phase alternating current contactor lockout protection device |
-
2011
- 2011-12-16 CN CN2011205278848U patent/CN202424127U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746334A (en) * | 2014-02-18 | 2014-04-23 | 常州江南电力环境工程有限公司 | Electronic protection device for heater |
| CN105305384A (en) * | 2015-09-15 | 2016-02-03 | 国网山东胶州市供电公司 | Line default phase alternating current contactor lockout protection device |
| CN105305384B (en) * | 2015-09-15 | 2016-10-12 | 国网山东省电力公司胶州市供电公司 | Circuit phase shortage A.C. contactor latch-up protection device |
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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: 20120905 Termination date: 20121216 |