CN205190292U - Cooling blower's start -stop circuit - Google Patents
Cooling blower's start -stop circuit Download PDFInfo
- Publication number
- CN205190292U CN205190292U CN201520849166.0U CN201520849166U CN205190292U CN 205190292 U CN205190292 U CN 205190292U CN 201520849166 U CN201520849166 U CN 201520849166U CN 205190292 U CN205190292 U CN 205190292U
- Authority
- CN
- China
- Prior art keywords
- contactor
- normally opened
- opened contact
- switch
- coil
- 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.)
- Active
Links
Abstract
The utility model discloses a cooling blower's start -stop circuit, DC power supply's positive pole loop through the coil of staring switch, travel switch and first contactor and are connected with the DC power supply negative pole, a normally open contact of first contactor connects between alternating current power supply and cooling blower, the 2nd normally open contact of first contactor connects in parallel at the both ends of staring switch, the normally closed contact and time relay's the coil of auxiliary relay's a normally open contact and the coil of second contactor, auxiliary relay's the 2nd normally open contact and auxiliary relay's coil and second contactor are all established ties and are formed the branch road and connect in parallel at the coil of first contactor and cross the establish ties both ends of the branch road formed of travel switch, the 2nd normally open contact's that time relay's normally open contact connected in parallel at auxiliary relay both ends, frequency sensitive rheostat and cooling blower are connected, and the normally open contact of second contactor is parallelly connected with frequency sensitive rheostat, travel switch installs on the gatepost of control box.
Description
Technical field
The utility model relates to technical field of cigarette equipment, particularly relates to a kind of start-stop circuit of cooling blower.
Background technique
The control of the cooling blower of ZJ17 rolling up and connecting machine is when equipment power transmission, cooling blower plays trend equipment immediately, and each needs the position of cooling air to provide cooling quench, the advantage of this controlling method is constantly to needing the position of cooling to provide cooling quench, shortcoming is when equipment downtime needs maintenance (non-stopping production), cooling blower is operating always, the dust of maintenance facility will enter each position needing cooling together along with cooling air, cause equipment clean in appearance, but cooling position floating dust is more, even can be mingled with dust at electrical apparatus element, cause the inefficacy of electrical apparatus element, shorten the working life of electrical apparatus element.
And, cooling blower commonly uses auto-induction voltage-reduced starting, it starts control switching device majority and adopts common time relay, overload protection adopts thermorelay, this start protection has following problem: the reliability of the time relay is lower, the precision in control time is not high, and cooling blower is opening in process, and control loop acts on without detection starting state; To the faulty operation of operator without eliminating measure.Due to the existence of these problems, the normal fault occurring starting convert failed, the accident that auto-transformer or relevant electric component such as frequency quick resistance and cooling blower etc. are burnt out, causes direct economic loss, even makes industrial production interrupt.
Model utility content
The utility model provides a kind of start-stop circuit of cooling blower, can detect cooling blower starting state, effectively avoid the accident that burns out of auto-transformer or relevant electrical equipment such as frequency quick resistance and motor etc., and closing down of blower fan can be controlled when equipment maintains, improve the operational efficiency of equipment.
The technical solution adopted in the utility model is: a kind of start-stop circuit of cooling blower, comprise switch starter, position limit switch, the first contactor, the second contactor, auxiliary reclay, the time relay and frequency sensitive trheostat, one end of switch starter connects DC power anode, and the other end of switch starter is connected with DC power cathode by the coil of position limit switch with the first contactor successively; First normally opened contact of the first contactor is connected between ac power supply and cooling blower; Second normally opened contact of the first contactor is connected in parallel on the two ends of switch starter; The branch circuit parallel connection that first normally opened contact of auxiliary reclay and the coils connected in series of the second contactor form the first contactor coil and cross the two ends of the branch road that stroke switch series joint group becomes; The branch circuit parallel connection that second normally opened contact of auxiliary reclay and the coils connected in series of auxiliary reclay form the first contactor coil and cross the two ends of the branch road that stroke switch series joint group becomes; The normally opened contact of the time relay is connected in parallel on the two ends of the second normally opened contact of auxiliary reclay; The branch circuit parallel connection that the normally-closed contact of the second contactor and the coils connected in series of the time relay form the first contactor coil and cross the two ends of the branch road that stroke switch series joint group becomes; Frequency sensitive trheostat is connected with cooling blower, and the normally opened contact of the second contactor is in parallel with frequency sensitive trheostat, and the normally opened contact of the second contactor is that triangle connects envelope star structure; Described position limit switch is arranged on the door pillar of control casing.
Described position limit switch is wheel switch.
Described ac power supply is 220V, and described DC electrical source is 24V.
The utility model seals in frequency sensitive trheostat in cooling blower starting process, cooling blower is started steadily, avoids burning out cooling blower.The utility model is also provided with current transformer and thermorelay.The normally opened contact of second contactor of connecting with frequency sensitive trheostat in the utility model adopts triangle to be connected and seals star structure, play shunting action, the temperature of the normally opened contact of the second contactor is declined, extends the working life of contactor, thus improve the running rate of equipment.The utility model equipment downtime open chamber door maintain time, can the stopping of controlled cooling model blower fan, make dust to enter electric control box, thus improve the reliable operation of electrical apparatus element.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises switch starter SB1, position limit switch SQ, the first contactor, the second contactor, auxiliary reclay, the time relay and frequency sensitive trheostat RF, one end of switch starter SB1 connects DC power anode, and the other end of switch starter SB1 is connected with DC power cathode with the coil KM1 of the first contactor by position limit switch SQ successively; First normally opened contact KM11 of the first contactor is connected between ac power supply and cooling blower; Second normally opened contact KM12 of the first contactor is connected in parallel on the two ends of switch starter SB1; The two ends of the branch road that the branch circuit parallel connection that the first normally opened contact KA1 of auxiliary reclay and the coil KM2 of the second contactor is composed in series is composed in series at coil KM1 and the position limit switch SQ of the first contactor; The two ends of the branch road that the branch circuit parallel connection that the second normally opened contact KA2 of auxiliary reclay and the coil KA of auxiliary reclay is composed in series is composed in series at coil KM1 and the position limit switch SQ of the first contactor; The normally opened contact KT1 of the time relay is connected in parallel on the two ends of the second normally opened contact KA2 of auxiliary reclay; The two ends of the branch road that the branch circuit parallel connection that the normally-closed contact KM21 of the second contactor and the coil KT of the time relay is composed in series is composed in series at coil KM1 and the position limit switch SQ of the first contactor; Frequency sensitive trheostat RF is connected with cooling blower, and the normally opened contact KM22 of the second contactor is in parallel with frequency sensitive trheostat RF, and the normally opened contact KM22 of the second contactor is that triangle connects envelope star structure; Described position limit switch SQ is arranged on the door pillar of control casing.
Described position limit switch SQ is wheel switch.
Described ac power supply is 220V, and described DC electrical source is 24V.
Working principle of the present utility model is as follows: during starting, press starting button, the coil KM1 of the first contactor obtains electric adhesive, second normally opened contact KM12 of the first contactor closes self-locking, first normally opened contact KM11 of the first contactor closes, and the rotor circuit of cooling blower seals in frequency sensitive trheostat RF and starts.Meanwhile, the coil KT of the time relay obtains electric trigger, after reaching delay time, the normally opened contact KT1 of the time relay closes, the coil KA of auxiliary reclay obtains electric adhesive, first normally opened contact KA1 of auxiliary reclay closes, the coil KM2 of the second contactor obtains electric, the normally-closed contact KM21 of the second contactor disconnects, and has cut off the power supply of the coil KT of the time relay, the coil KT power-off release of the time relay, simultaneously, the normally opened contact KM22 of the second contactor closes, and got up by frequency sensitive trheostat RF short circuit, starting process terminates.When opening control casing and overhauling, position limit switch SQ is no longer by the extruding of cabinet door, position limit switch SQ disconnects, the power supply of control circuit is cut off, thus main circuit is also cut off, the stopping of cooling blower, makes dust to enter electric control box, thus improve the reliable operation of electrical apparatus element, improve the operational efficiency of equipment.
Claims (3)
1. the start-stop circuit of a cooling blower, it is characterized in that: comprise switch starter, position limit switch, the first contactor, the second contactor, auxiliary reclay, the time relay and frequency sensitive trheostat, one end of switch starter connects DC power anode, and the other end of switch starter is connected with DC power cathode by the coil of position limit switch with the first contactor successively; First normally opened contact of the first contactor is connected between ac power supply and cooling blower; Second normally opened contact of the first contactor is connected in parallel on the two ends of switch starter; The branch circuit parallel connection that first normally opened contact of auxiliary reclay and the coils connected in series of the second contactor form the first contactor coil and cross the two ends of the branch road that stroke switch series joint group becomes; The branch circuit parallel connection that second normally opened contact of auxiliary reclay and the coils connected in series of auxiliary reclay form the first contactor coil and cross the two ends of the branch road that stroke switch series joint group becomes; The normally opened contact of the time relay is connected in parallel on the two ends of the second normally opened contact of auxiliary reclay; The branch circuit parallel connection that the normally-closed contact of the second contactor and the coils connected in series of the time relay form the first contactor coil and cross the two ends of the branch road that stroke switch series joint group becomes; Frequency sensitive trheostat is connected with cooling blower, and the normally opened contact of the second contactor is in parallel with frequency sensitive trheostat, and the normally opened contact of the second contactor is that triangle connects envelope star structure; Described position limit switch is arranged on the door pillar of control casing.
2. the start-stop circuit of cooling blower according to claim 1, is characterized in that: described position limit switch is wheel switch.
3. the start-stop circuit of cooling blower according to claim 1 and 2, is characterized in that: described ac power supply is 220V, and described DC electrical source is 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849166.0U CN205190292U (en) | 2015-10-30 | 2015-10-30 | Cooling blower's start -stop circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520849166.0U CN205190292U (en) | 2015-10-30 | 2015-10-30 | Cooling blower's start -stop circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205190292U true CN205190292U (en) | 2016-04-27 |
Family
ID=55783288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520849166.0U Active CN205190292U (en) | 2015-10-30 | 2015-10-30 | Cooling blower's start -stop circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205190292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701088A (en) * | 2019-10-14 | 2020-01-17 | 江西清华泰豪三波电机有限公司 | Control device and control method for water tank cooling fan |
-
2015
- 2015-10-30 CN CN201520849166.0U patent/CN205190292U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701088A (en) * | 2019-10-14 | 2020-01-17 | 江西清华泰豪三波电机有限公司 | Control device and control method for water tank cooling fan |
| CN110701088B (en) * | 2019-10-14 | 2020-10-02 | 江西清华泰豪三波电机有限公司 | Control device and control method for water tank cooling fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205070854U (en) | Motor start control circuit | |
| CN205190292U (en) | Cooling blower's start -stop circuit | |
| CN204993152U (en) | Exhaust fan timing control system | |
| CN203101516U (en) | Automatic monitoring device for motor insulation | |
| CN106594503B (en) | Safety relay-based safety protection control device of automatic assembly machine | |
| CN109580211B (en) | Mechanical characteristic test system of high-voltage circuit breaker | |
| CN105158688B (en) | Electromechanical equipment fault location and alarm protecting apparatus | |
| CN202165256U (en) | Controller for air compressor | |
| CN208479171U (en) | A kind of threephase motor temperature control light current and forceful electric power isolation circuit | |
| CN106100510A (en) | Double-speed motor control method | |
| CN204302441U (en) | High-voltage motor insulated pick-up unit | |
| CN201763658U (en) | Timing control circuit for floating electric blower | |
| CN204620956U (en) | Screw-rolling machine anti-misoperation emergency stop device | |
| CN202475330U (en) | Alarm for preventing motor from being started by mistake | |
| CN209691694U (en) | Eliminate the vibration device of relay contact adhesion | |
| CN201845074U (en) | Device for detecting operational state of oil pump motor | |
| CN204167210U (en) | A.C. contactor flash device | |
| CN204369440U (en) | A kind of control device of crown block | |
| CN204167204U (en) | Energy saving ac contactor circuit structure system | |
| CN204441859U (en) | The overheated monitoring alarm of terminal | |
| CN204167205U (en) | Three-winding magnetic suck cut-offs A.C. contactor circuit | |
| CN106208902A (en) | Motor discontinuous operation control method | |
| CN218567546U (en) | Automatic alarm control device | |
| CN204349430U (en) | The current protection system of direct current machine | |
| CN201533153U (en) | Control circuit for preventing frequent make-and-break of alternating current contactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 450000 Yulin South Road, Henan, Zheng Dong, No. 16 South Road, Zhengzhou Patentee after: China Tobacco Henan Industrial Co., Ltd. Address before: 450000 No. 29, agricultural East Road, Zheng Dong New District, Henan, Zhengzhou Patentee before: China Tobacco Henan Industrial Co., Ltd. |