CN2299165Y - Motor protective controlling implement for water pump - Google Patents
Motor protective controlling implement for water pump Download PDFInfo
- Publication number
- CN2299165Y CN2299165Y CN 96222393 CN96222393U CN2299165Y CN 2299165 Y CN2299165 Y CN 2299165Y CN 96222393 CN96222393 CN 96222393 CN 96222393 U CN96222393 U CN 96222393U CN 2299165 Y CN2299165 Y CN 2299165Y
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- CN
- China
- Prior art keywords
- unit
- motor
- water level
- water
- level detecting
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- 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 Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a motor protective controlling device for water pumps, comprising a step-down rectifying unit, a comparing unit, a water level detecting unit, an oscillating unit, an alarming unit and a motor controlling unit, wherein, the comparing unit compares water level values measured by the water level detecting and the state voltage values of a three-phase power supply provided by the step-down rectifying unit with fixed values, and accordingly, a motor can be stopped running by the motor controlling unit when water levels are over low or the power supply is abnormal; the alarming unit is also started up to achieve the protection of the motor during abnormal condition when the motor pumps water.
Description
The utility model system is about a kind of motor protection control gear of the pumping of drawing water; mainly be that the water level that the water level detecting unit recorded with a comparing unit and voltage and its default value of depressurization and rectification do one relatively; use when water level or voltage generation unusual condition; can stop motor running and make the action warning of caution unit via motor control unit, form the function of safety protection of pumping motor according to this.
The pumping of drawing water is a kind of utensil that is widely used in the water of pool or irrigation canals and ditches is extracted eliminating or diversion irrigation, as its name suggests, its water intake is placed in is lower than the underwater, the operation of just drawing water.
Traditional draws water pumping in design, mainly is to drive one group of bailing vane rotation with one group of motor, and the suction effect of drawing that utilizes the bailing vane rotation to be produced is up pumped water.For taking the usefulness of extraction into account, its water intake just is located between motor and the bailing vane, water directly up can be pumped and obtained more powerful water outlet through water intake when bailing vane is rotated, but, water intake is located at design between motor and bailing vane, because motor has certain altitude, therefore, when the water level in the environment that draws water is lower than motor, just can't draw water, form the restriction of its service condition.
And under the low excessively condition of this water level; if fail to stop the running of motor in good time; the problem that then may cause very much motor promptly to burn after idle running a period of time; therefore; traditional pumping of drawing water is provided with condensate tank of dehumidifier; with the sensing detection device of float valve as water level, use recording water level and cross and can stop motor running automatically when low, form the safety protection device of its motor.
Yet, running with the pumping of generally drawing water, except meeting with the low excessively problem of aforesaid water level, the situation of its voltage supply also is to influence the whether smooth and easy key factor of its motor running, when too high or too low anomaly took place in its voltage supply, the former may cause burning of motor, and the latter then may cause motor running speed to be slowed down, under this voltage unusual condition fluctuated, this motor certainly will cause damage slowly because of bearing fast the neglecting of neglecting of its rotating speed.
Yet; with regard to the motor protection of the pumping of drawing water, the protective function of this water level detecting is no doubt necessary, but the function of safety protection of relevant electric voltage exception is also integral; have only the protective gear that has water level and electric voltage exception simultaneously concurrently just can guarantee the normal operation of motor, reach real use value.
The purpose of this utility model is, provides a kind of except having the water level detecting protective function, also has the motor protection control gear of the pumping of drawing water of the function of safety protection of electric voltage exception situation concurrently.
Technical solution of the present utility model is: 1, the water level that water level detection circuit is recorded with a comparison circuit and voltage and its default value of depressurization and rectification do one relatively, use when water level or voltage generation unusual condition, can stop motor running and make warning circuit action warning via motor control circuit, to form the function of safety protection of pumping motor; 2, the detection of this water level situation is to carry out with one group of infrared detector, uses to solve the problem that known float valve easily produces misoperation and detects error; 3, this comparison circuit relatively is to owe mutually or voltage just surpasses ± 10% at the three-phase voltage of step-down rectifying circuit to the detection of voltage, promptly stops motor running automatically; 4, this warning circuit has the switching function of manual operator scheme, and the user can select it to show situation according to need.
As mentioned above, the utility model comprises water level detecting unit, comparing unit, motor control unit and the caution unit that connects with circuit successively, and the oscillating unit that is connected with the input end of comparing unit of output terminal, the input end of this water level detecting unit connects mutually with water level to be measured, and this motor control unit is connected with the feeder ear of motor through oscillating unit, its characteristics are the depressurization and rectification unit of also oriented comparing unit input power state signal, and the input end of this depressurization and rectification unit is connected with primary power supply.Further, the utility model also has the manauto switching unit that becomes circuit to connect with comparing unit.
Improvement of the present utility model is that also the water level detecting unit mainly is made of one group of infrared detector, thereby has solved the problem that the float valve of commonly using easily produces misoperation and detects error.
Accompanying drawing of the present utility model is simply described as follows:
Fig. 1 is an overall structure block schematic diagram of the present utility model.
Fig. 2 is the rough schematic of each unit connection relation of the utility model.
Fig. 3 is the electrical schematic diagram of the utility model depressurization and rectification unit and motor control unit.
Fig. 4 is the electrical schematic diagram of the utility model comparing unit.
Fig. 5 is the electrical schematic diagram of the utility model water level detecting unit.
Fig. 6 is the electrical schematic diagram of the utility model oscillating unit.
Fig. 7 is the electrical schematic diagram of the utility model caution unit.
Among above-mentioned Fig. 1～Fig. 7:
The 10th, depressurization and rectification unit 11 is overload protective devices
The 12nd, overcurrent protective device 20 is comparing units
The 30th, water level detecting unit 31 is infrared detectors
The 32nd, integrated regulator piece 40 is oscillating units
The 41st, low frequency oscillation integrated package 50 is caution unit
The 51st, alarm buzzer 52 is tutorial light
The 60th, manauto switching unit 70 is motor control units
The 71st, motor
For enabling that the utility model is obtained more deep and concrete understanding, now cooperate Fig. 1～Fig. 7 to give again and be discussed in the back:
See also Fig. 1; the detailed circuti diagram of each circuit of 2 schematic representation and Fig. 3～7; as shown in the figure; the utility model mainly comprises: a depressurization and rectification unit 10; one comparing unit 20; one water level detecting unit 30; one oscillating unit 40; one caution unit 50; an one manual-automatic switch unit 60 and motor control unit 70; wherein; this comparing unit 20 can receive the signal of water level detecting unit 30 and depressurization and rectification unit 10; through the result being changed into control signal stopper motor control unit 70 with comparing unit 20 default value comparisons; and this depressurization and rectification unit 10 provides the three-phase voltage kenel of motor 71 runnings; respectively be provided with overload protective device 11 at each phase voltage circuit, and be provided with overcurrent protective device 12 in pumping motor 71 parts.And this water level detecting unit 30 is as state-detection with infrared detector 31, and with integrated regulator piece 32 its power supplys of supply, this caution unit 50 comprises alarm buzzer 51 and tutorial light 52 in addition, has the dual functions of reporting to the police and indicating, and with manauto switching unit 60 convertible its manual operator schemes, and oscillating unit 40 is low frequency oscillation integrated packages 41, and using provides the benchmark of comparing unit 20 numerical value.
The utility model that constitutes by above each unit, when water level detecting unit 30 records water level, just will record numerical value is sent to comparing unit 20 and makes comparisons with its default value, if its water level is lower than benchmark, then comparing unit 20 just trigger this motor control unit 70 automatically control motors 71 shut down, and the alarm buzzer 51 of caution unit 50 and tutorial light 52 are moved, use the protective function that reaches the motor water level abnormality and remind the user to note; Aspect in addition; in between the action of these motor 71 runnings; this comparing unit 20 is constantly to the three-phase voltage of depressurization and rectification unit 10 and its default value relatively; cause the supply of its three-phase voltage to produce the phase situation of owing when its depressurization and rectification unit 10 faults; or cause the three-phase voltage value inequality because of voltage instability; or the height of its magnitude of voltage was above ± 10% o'clock; triggering this motor control unit 70 with comparing unit 20 equally stops the running of motor 71 and makes 50 actions of caution unit, the motor protective function when reaching electric voltage exception according to this.
On circuit structure design of the present utility model; except traditional water level detecting function; function of safety protection when more having increased electric voltage exception; use under the abnormal conditions that the pumping of can guaranteeing to draw water may meet with when motor running; all can stop the running of motor 71 by protection control gear of the present utility model automatically; make it not cross low or voltage instability causes damage, keep the working life of motor 71 according to this, improve its whole use value because of water level.
In sum, the utility model is via the design of its circuit, a kind of motor function of safety protection when having water level detecting and electric voltage exception concurrently is provided, than the single condensate tank of dehumidifier of the known pumping of drawing water, the utility model more can solve the problem that voltage instability is derived simultaneously, really reaches perfect function of safety protection, generally speaking, the design that has a use value of can yet be regarded as in fact meets industrial practicability.
Claims (3)
1; a kind of motor protection control gear of the pumping of drawing water; comprise the water level detecting unit (30) that connects with circuit successively; comparing unit (20); motor control unit (70) and caution unit (50); and the oscillating unit (40) that is connected with the input end of comparing unit (20) of output terminal; the input end of this water level detecting unit (30) connects mutually with water level to be measured; and this motor control unit (70) is connected through the feeder ear of oscillating unit (40) with motor (71); it is characterized in that the depressurization and rectification unit (10) of also oriented comparing unit (20) input power state signal, the input end of this depressurization and rectification unit (10) is connected with primary power supply.
2, the motor of the pumping of drawing water according to claim 1 protection control gear is characterized in that the manauto switching unit (60) that becomes circuit to connect in addition with comparing unit (20).
3, the motor of the pumping of drawing water according to claim 1 protection control gear is characterized in that water level detecting unit (30) comprises one group of infrared detector (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96222393 CN2299165Y (en) | 1996-12-06 | 1996-12-06 | Motor protective controlling implement for water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96222393 CN2299165Y (en) | 1996-12-06 | 1996-12-06 | Motor protective controlling implement for water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2299165Y true CN2299165Y (en) | 1998-12-02 |
Family
ID=33901945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96222393 Expired - Fee Related CN2299165Y (en) | 1996-12-06 | 1996-12-06 | Motor protective controlling implement for water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2299165Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436823C (en) * | 2002-07-25 | 2008-11-26 | 大金工业株式会社 | Compressor internal state estimating device and air conditioner |
-
1996
- 1996-12-06 CN CN 96222393 patent/CN2299165Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436823C (en) * | 2002-07-25 | 2008-11-26 | 大金工业株式会社 | Compressor internal state estimating device and air conditioner |
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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 |