CN2214550Y

CN2214550Y - Submersible pump

Info

Publication number: CN2214550Y
Application number: CN 94244007
Authority: CN
Inventors: 刘宇; 胡根荣
Original assignee: WATER PUMP PLANT JINHUA CITY
Current assignee: WATER PUMP PLANT JINHUA CITY
Priority date: 1994-10-26
Filing date: 1994-10-26
Publication date: 1995-12-06
Anticipated expiration: 2004-10-26

Abstract

The utility model relates to a submersible pump, which is composed of a pump cover, a pump body, an electric motor and a worm shell, wherein, a water pump impeller, a net cover and a water outlet connecting opening are arranged on the worm shell. The auxiliary of the electric motor of the water pump is connected with a working capacitor in series. The working capacitor is connected with a starting capacitor and a centrifugal switch in parallel. Compared with the existing submersible pump, the utility model has the advantages of small volume, light weight, low cost and power consumption saving. The utility model is especially used as the water pumping devices of field irrigation, civil building, family life, etc.

Description

Submersible pump

The utility model belongs to a kind of water plug, particularly a kind of submersible pump.

Submersible pump is a kind of field irrigation that is widely used in, the water plug of engineering construction and family life etc.Have only a starting capacitance in the circuit of existing its motor of submersible pump, when submersible pump was worked, this electric capacity and the secondary winding that is in series with it were not all worked, and this reduces the submersible pump working efficiency.Simultaneously, present submersible pump also exists the deficiency that volume is big, weight is heavier, cost is high, power consumption is big.

Task of the present utility model is at the existing above-mentioned deficiency of existing submersible pump, and the submersible pump that a kind of efficient height, volume are little, in light weight, power consumption is economized, cost is low is provided.

Task of the present utility model is finished in the following way: mutual capacitance of series connection on the secondary winding of existing motor for submerged pump, this mutual capacitance is in parallel with starting capacitance and centrifugal switch.Simultaneously, stator and rotor length in the motor on the existing submersible pump are all shortened 1/3rd to sixth.

The utility model is compared with existing submersible pump, has the advantages that volume is little, in light weight, cost is low, power consumption is economized, efficient is high.The utility model is particularly suitable as a kind of field irrigation, the water plug of engineering construction and family life etc.

Description of drawings:

Fig. 1 is a kind of structural representation of submersible pump.Wherein (1) represents the pump housing; (2) expression power line; (3) expression handle; (4) expression mutual capacitance; (5) expression starting capacitance; (6) expression pump cover; (7) expression water outlet interface; (8) expression guard; (9) expression water pump vane; (10) expression spiral case.

Fig. 2 is the circuit diagram of pump motor.K wherein ₁Be heat portective switch; K ₂Be centrifugal switch; L ₁Be main winding; L ₂Be secondary winding; C ₁Be mutual capacitance; C ₂Be starting capacitance.

Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.

A kind of submersible pump, it is made up of pump cover (6), the pump housing (1), spiral case (10).In the pump housing (1), be provided with motor.On spiral case (10), be provided with water pump vane (9), guard (8), water outlet interface (7).The circuit of pump motor is by main winding L ₁, secondary winding L ₂, heat portective switch K ₁, centrifugal switch K ₂, mutual capacitance C ₁, starting capacitance C ₂, form.Wherein, heat portective switch K ₁The live wire of one end and power line joins, heat portective switch K ₁The other end respectively with main winding L ₁An end, mutual capacitance C ₁An end, starting capacitance C ₂An end join mutual capacitance C ₁The other end respectively with secondary winding L ₂An end, centrifugal switch K ₂An end join starting capacitance C ₂The other end and centrifugal switch K ₂The other end join main winding L ₁The other end and secondary winding L ₂The other end all be connected on the ground wire of power line.During the pump motor starting, mutual capacitance C ₁, starting capacitance C ₂, secondary winding L ₂Participate in work simultaneously, guarantee to have bigger torque.When the rotating speed of pump motor rotor reach rated speed 75%～85% the time, centrifugal switch K ₂Disconnect starting capacitance C ₂Do not participate in work, and mutual capacitance C ₁With secondary winding L ₂Continue participation work, like this secondary winding L ₂Also can provide certain exerting oneself, make pump motor improve efficient and improved power factor.

Claims

1, a kind of submersible pump, this submersible pump is made up of pump cover (6), the pump housing (1), spiral case (10), wherein be provided with motor in the pump housing (1), be provided with water pump vane (9), guard (8), water outlet interface (7) on spiral case (10), the circuit that it is characterized in that pump motor is by main winding L ₁, secondary winding L ₂, heat portective switch K ₁, centrifugal switch K ₂, mutual capacitance C ₁, starting capacitance C ₂, form heat portective switch K wherein ₁The live wire of one end and power line joins, heat portective switch K ₁The other end respectively with main winding L ₁An end, mutual capacitance C ₁An end, starting capacitance C ₂An end join mutual capacitance C ₁The other end respectively with secondary winding L ₂An end, centrifugal switch K ₂An end join starting capacitance C ₂The other end and centrifugal switch K ₂The other end join main winding L ₁The other end and secondary winding L ₂The other end all be connected on the ground wire of power line.