CN205901639U - Central air conditioning water pump motor's starting circuit - Google Patents
Central air conditioning water pump motor's starting circuit Download PDFInfo
- Publication number
- CN205901639U CN205901639U CN201620833733.8U CN201620833733U CN205901639U CN 205901639 U CN205901639 U CN 205901639U CN 201620833733 U CN201620833733 U CN 201620833733U CN 205901639 U CN205901639 U CN 205901639U
- Authority
- CN
- China
- Prior art keywords
- circuit
- drive circuit
- pump motor
- central air
- switch
- 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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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The utility model provides a central air conditioning water pump motor's starting circuit, central air conditioning includes a plurality of water pump motor, including connecting a plurality of water pump motor drive circuit and a plurality of delay circuit between power supply polarity in parallel, in the front drive circuit switches on the corresponding delay circuit time delay of back accessible and switches on the drive circuit after, thereby postpone in proper order to switch on each drive circuit in order to start a plurality of water pump motor in proper order, drive circuit in the front is provided with contactor coil, delay circuit is provided with the time relay coil and is used for switching on delay circuit's contactor contact, drive circuit after is provided with the time relay contact that is used for switching on drive circuit. The utility model discloses a plurality of water pump motor that utilize time relay control central air conditioning start in proper order, prevent that the staff from starting whole water pump motor because of habituation is violating the regulations simultaneously, avoid causing the tripping operation of electricity distribution room high voltage circuit breaker, ensure electrical safety.
Description
Technical field
This utility model is related to a kind of start-up circuit of pump motor in central air-conditioner.
Background technology
Central air-conditioning unit includes water pump, cooling tower, compressor and drives water pump, the motor of cooling tower, when air conditioning unit
Motor all simultaneously start when, great starting current will be produced.It is usually provided with height in the high voltage side of transformer of switchgear house
Voltage breaker, the starting current producing during air conditioning unit electric motor starting can be higher than the overcurrent protection threshold value of primary cut-out, cause
Primary cut-out trips, and not only affects the normal use of central air-conditioning, other electricity consumption branch roads powered by switchgear house also can be produced
Raw harmful effect.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, proposes a kind of pump motor in central air-conditioner and starts electricity
Road, controls multiple water pumps of central air-conditioning to start successively, it is to avoid to start simultaneously and produce excessive starting current.
This utility model is achieved through the following technical solutions:
A kind of start-up circuit of pump motor in central air-conditioner, described central air-conditioning includes multiple pump motors, including in parallel
Multiple pump motor drive circuits and multiple delay circuit between power positive cathode, can pass through after preceding drive circuit conducting
The corresponding posterior drive circuit of delay circuit Delayed conducting, thus each drive circuit of turn on delay is many to start successively successively
Individual pump motor, preceding drive circuit is provided with contactor coil, and delay circuit is provided with time relay coil and is used for
The contacts of contactor of conducting delay circuit, the time relay that posterior drive circuit is provided with for on-state drive circuit touches
Point.
Further, first drive circuit is provided with the first activate switch for on-state drive circuit.
Further, the drive circuit in addition to first drive circuit is provided with and described time relay contact shunt
Second activate switch.
Further, also include the total shutdown switch being arranged between described positive source and described drive circuit.
Further, described first activate switch is air switch.
Further, described second activate switch is air switch.
Further, described total shutdown switch is air switch.
This utility model has the advantages that
This utility model is started successively using multiple pump motors that the time relay controls central air-conditioning, prevents work people
Member breaks rules and regulations to start whole pump motors because habitual simultaneously, it is to avoid cause the tripping operation of switchgear house primary cut-out it is ensured that electricity consumption is pacified
Entirely.
Brief description
Below in conjunction with the accompanying drawings this utility model is described in further details.
Fig. 1 is circuit theory diagrams of the present utility model.
Specific embodiment
It is illustrated in figure 1 the circuit theory diagrams of the start-up circuit of pump motor in central air-conditioner of the present utility model, in this reality
Apply in example, central air-conditioning is provided with three pump motors, start-up circuit includes three water pumps being connected in parallel between live wire and zero line
Motor-drive circuit and two delay circuits, the total shutdown switch k4 being arranged between live wire and drive circuit, each drives electricity
Road is connected with a pump motor 1 respectively, and the first startup that first drive circuit 2 is provided with for on-state drive circuit 2 is opened
Close k1 and catalyst j1 coil, first delay circuit 3 is provided with time relay t1 coil and for turning on delay circuit 3
Catalyst j1 contact 31, second drive circuit 4 is provided with catalyst j2 coil, the time relay for on-state drive circuit 4
Device t1 contact 41 and second activate switch k2 in parallel with time relay t1 contact 41, when second delay circuit 5 is provided with
Between relay t2 coil and for turning on the catalyst j2 contact 51 of delay circuit 5, the 3rd drive circuit 6 is provided with catalyst
J3 coil, the time relay t2 contact 61 and in parallel with time relay t2 contact 61 second for on-state drive circuit 6
Activate switch k3, after the conducting of first drive circuit 2, turns on second drive circuit 4 by first delay circuit 3, and second
After individual drive circuit 4 conducting, the 3rd drive circuit 6 is turned on by second delay circuit 5, thus realizing three pump motors
Delayed conducting successively, the setting time of the setting time relay t1, t2 is 20s, makes three pump motors be spaced 20s order successively
Start, it is to avoid start all motors simultaneously, cause switchgear house primary cut-out to trip.
In the present embodiment, the first activate switch k1, the second activate switch k3 and total shutdown switch k4 are air switch.
The above, preferred embodiment only of the present utility model, therefore this utility model can not be limited with this and implement
Scope, the equivalence changes made according to this utility model claim and description and modification, all should still belong to this
In the range of utility model patent is covered.
Claims (7)
1. a kind of start-up circuit of pump motor in central air-conditioner, described central air-conditioning include multiple pump motors it is characterised in that:
Including the multiple pump motor drive circuits and the multiple delay circuit that are connected in parallel between power positive cathode, preceding drive circuit is led
The posterior drive circuit of corresponding delay circuit Delayed conducting can be passed through after logical, thus successively each drive circuit of turn on delay with
Start multiple pump motors successively, preceding drive circuit is provided with contactor coil, and delay circuit is provided with the time relay
Coil and the contacts of contactor for turning on delay circuit, posterior drive circuit is provided with the time for on-state drive circuit
Relay contact.
2. a kind of pump motor in central air-conditioner according to claim 1 start-up circuit it is characterised in that: first drive electricity
Road is provided with the first activate switch for on-state drive circuit.
3. a kind of pump motor in central air-conditioner according to claim 2 start-up circuit it is characterised in that: except first driving
Drive circuit outside circuit is provided with the second activate switch with described time relay contact shunt.
4. a kind of pump motor in central air-conditioner according to claim 1 or 2 or 3 start-up circuit it is characterised in that: also wrap
Include the total shutdown switch being arranged between described positive source and described drive circuit.
5. a kind of pump motor in central air-conditioner according to claim 2 start-up circuit it is characterised in that: described first opens
Dynamic switch is air switch.
6. a kind of pump motor in central air-conditioner according to claim 3 start-up circuit it is characterised in that: described second opens
Dynamic switch is air switch.
7. a kind of pump motor in central air-conditioner according to claim 4 start-up circuit it is characterised in that: described total stopping
Switch as air switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620833733.8U CN205901639U (en) | 2016-08-03 | 2016-08-03 | Central air conditioning water pump motor's starting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620833733.8U CN205901639U (en) | 2016-08-03 | 2016-08-03 | Central air conditioning water pump motor's starting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901639U true CN205901639U (en) | 2017-01-18 |
Family
ID=57782978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620833733.8U Expired - Fee Related CN205901639U (en) | 2016-08-03 | 2016-08-03 | Central air conditioning water pump motor's starting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901639U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108566103A (en) * | 2018-05-11 | 2018-09-21 | 南京恩瑞特实业有限公司 | A key switch machine device and its implementation for secondary radar |
-
2016
- 2016-08-03 CN CN201620833733.8U patent/CN205901639U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108566103A (en) * | 2018-05-11 | 2018-09-21 | 南京恩瑞特实业有限公司 | A key switch machine device and its implementation for secondary radar |
| CN108566103B (en) * | 2018-05-11 | 2020-06-02 | 南京恩瑞特实业有限公司 | One-key switch device for secondary radar and implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |