CN104141614A - Submersible pump capable of being powered off in absence of water - Google Patents
Submersible pump capable of being powered off in absence of water Download PDFInfo
- Publication number
- CN104141614A CN104141614A CN201410368356.0A CN201410368356A CN104141614A CN 104141614 A CN104141614 A CN 104141614A CN 201410368356 A CN201410368356 A CN 201410368356A CN 104141614 A CN104141614 A CN 104141614A
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- CN
- China
- Prior art keywords
- submersible pump
- power supply
- copper sheet
- audion
- circuit board
- 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.)
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Abstract
The invention relates to a submersible pump, and belongs to the technical field of submersible pumps. The submersible pump comprises a pump body and a direct-current power supply. A circuit board is arranged at the water inlet of the pump body, and two copper sheets are arranged on the circuit board in a staggered mode. One copper sheet is connected with the negative electrode of the direct-current power supply, and the other copper sheet is connected with the base of an audion. The collector and the emitter of the audion are connected between the positive electrode and the negative electrode of the direct-current power supply in series after being connected with a relay coil in series. The normally-closed contact of a relay is connected with a motor power supply circuit of the submersible pump in series, and the node of the other copper sheet and the base of the audion is connected with the positive electrode of the direct-current power supply through a current-limiting resistor, wherein the resistance value of the current-limiting resistor is larger than 50 megohms. According to the submersible pump, the circuit board arranged at the water inlet monitors whether water exists in a submersible impeller cavity; if water makes contact with the two copper sheets, a circuit is switched on, an audion switch is in a low level, the audion is switched off, the relay coil can not be electrified, and therefore the normally-closed contact is in the on-state and a submersible pump motor can work.
Description
Technical field
The present invention relates to a kind of submersible pump, belong to submersible pump technical field.
Background technique
Submersible pump need to completely sink in water and work.Especially home-use submersible pump, is placed in well and uses.The position of placing due to submersible pump is not easy to observe very much, is therefore difficult to learn water level situation.Once water level is too low, water pump can not be drawn to water, will make motor idle running.Motor idle running can make motor overheating, motor damage.
Summary of the invention
The present invention wants technical solution problem to be: overcome the shortcoming of above-mentioned technology, observe inconvenience for the water position status of submersible pump present position, provide a kind of water level too low, auto-breaking submersible pump when submersible pump can not be drawn.
In order to solve the problems of the technologies described above, the technological scheme that the present invention proposes is: a kind of idle running warning submersible pump, comprises the pump housing and DC electrical source; The water inlet of the described pump housing is provided with circuit board, on described circuit board, interlocks and is provided with two copper sheets; Described a slice copper sheet connects described DC power cathode; Described another sheet copper sheet is connected with the base stage of a triode; After the collector and emitter of described triode is connected with a relay coil, then be connected between the both positive and negative polarity of described DC electrical source; The normally-closed contact of described relay is connected in series in the motor power supply line of described submersible pump, described another sheet copper sheet and the node of the base stage of triode and the positive pole that is connected described DC electrical source by a current-limiting resistance; Described current-limiting resistance resistance is greater than 50 megaohms.
Such scheme further improves and is, between the node of base stage of described another sheet copper sheet and triode and the negative pole of described DC electrical source, is in series with electric capacity.
Such scheme further improves and is, described DC electrical source is 9V battery.
Utilization of the present invention is arranged in circuit board in the impeller cavity of submersible pump and monitors submersible pump water inlet and whether have water.Natural water all has impurity, therefore there is electric conductivity, in the time that there is water water inlet, two copper sheets of water contact, connect circuit, the level of triode switch ground level, due to the dividing potential drop effect of current-limiting resistance, in low level, triode cut-off, relay coil can not obtain electric, and therefore normally-closed contact is on state, and motor for submerged pump can be worked.In the time that water inlet is anhydrous, between two copper sheets, open circuit, triode switch conducting, relay coil obtains electric startup, and its normally-closed contact is opened, and motor dead electricity, quits work.
Brief description of the drawings
Be described further of the present invention below in conjunction with accompanying drawing.
Fig. 1 is the submersible pump structural representation of a preferred embodiment of the present invention.
Fig. 2 is the warning circuit structural representation of the present embodiment.
Fig. 3 is K switch 1 board structure of circuit schematic diagram in Fig. 2.
Number in the figure is schematically as follows: 1-submersible pump, the 2-pump housing, 3-impeller cavity, 4-water intake, 5-water outlet, 6-wire terminal, K1-switch.
Embodiment
Embodiment
The anhydrous power-off submersible pump that the present embodiment provides, as shown in Figure 1, the inwall of the water intake 4 of the pump housing 2 is provided with circuit board as shown in Figure 3, the staggered K switch 1 of two copper sheets formation that is provided with on circuit board.As shown in Figure 2, wherein a slice copper sheet connects DC power cathode; Another sheet copper sheet is connected with the base stage of a triode; After the collector and emitter of triode is connected with a relay coil, then be connected between the both positive and negative polarity of DC electrical source; Another sheet copper sheet is connected with the positive pole of DC electrical source by a divider resistance with the node of the base stage of triode, between this node and DC power cathode, is in series with filter capacitor.
The present embodiment adopts 9V battery as DC power supply.
Can arbitrarily change as required as the shape of Fig. 3 circuit board in the present embodiment, for cost-saving, makes on the inwall that fritter is placed in water intake 4 places.
In order to prevent that luminous relay coil from burning, in the circuit pathways at its place, be also installed with current-limiting resistance.
When work, submersible pump 1 by its bottom water intake 4 by water intake impeller chamber 3, after vane rotary is exerted pressure, by water outlet 5 connecting tubes, deliver to user place, the top of submersible pump 1 is provided with wire terminal 6, facilitates drawing of electric wire for motor, circuit board electric wire.
Two copper sheets on circuit board form the effect of K switch 1, natural water all has certain electric conductivity, its specific resistance at 10M Europe/cm once, the resistance of K switch 1 is less than 1M Europe, divider resistance resistance is got 50 megaohm to 100 megaohms, like this, in the time of circuit turn-on, share most of voltage by divider resistance.When water is by two copper sheet conductings, divider resistance is born most of voltage, and transistor base is in low level state, triode cut-off, and relay can not adhesive, so normally closed electric shock is normally worked, the motor of submersible pump 1 can normally be worked.When there is no water by its conducting on two copper sheets, triode ground level is in high level state, triode conducting, and relay coil obtains electric adhesive, and normally-closed contact disconnects, and motor can not be worked.
Circuit in the present embodiment only has resistance energising under normal state, and its electric current is less than μ A rank, exceedes 35000 hours so a joint 9V battery theory can normally be worked.
The present invention is not limited to the concrete technological scheme of above-described embodiment, and all employings are equal to replaces the technological scheme forming, and is the protection domain of requirement of the present invention.
Claims (3)
1. an anhydrous power-off submersible pump, comprises the pump housing and DC electrical source; It is characterized in that, the water inlet of the described pump housing is provided with circuit board, on described circuit board, interlocks and is provided with two copper sheets; Described a slice copper sheet connects described DC power cathode; Described another sheet copper sheet is connected with the base stage of a triode; After the collector and emitter of described triode is connected with a relay coil, then be connected between the both positive and negative polarity of described DC electrical source; The normally-closed contact of described relay is connected in series in the motor power supply line of described submersible pump, described another sheet copper sheet and the node of the base stage of triode and the positive pole that is connected described DC electrical source by a current-limiting resistance; Described current-limiting resistance resistance is greater than 50 megaohms.
2. anhydrous power-off submersible pump according to claim 1, is characterized in that: between the node of base stage of described another sheet copper sheet and triode and the negative pole of described DC electrical source, be in series with electric capacity.
3. anhydrous power-off submersible pump according to claim 1 and 2, is characterized in that: described DC electrical source is 9V battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368356.0A CN104141614A (en) | 2014-07-30 | 2014-07-30 | Submersible pump capable of being powered off in absence of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368356.0A CN104141614A (en) | 2014-07-30 | 2014-07-30 | Submersible pump capable of being powered off in absence of water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104141614A true CN104141614A (en) | 2014-11-12 |
Family
ID=51850898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410368356.0A Pending CN104141614A (en) | 2014-07-30 | 2014-07-30 | Submersible pump capable of being powered off in absence of water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104141614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508500A (en) * | 2017-09-22 | 2017-12-22 | 宁波普乐菲智能科技有限公司 | Motor enters water starting switch and enters the dust catcher of water starting switch using motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989005050A1 (en) * | 1987-11-19 | 1989-06-01 | Hans Bremel | Protective device for electrical mains appliances, in particular manual appliances |
| CN2329108Y (en) * | 1998-05-15 | 1999-07-14 | 叶秋华 | Electricity cut-off protector when water free |
| CN200948064Y (en) * | 2006-09-18 | 2007-09-19 | 深圳市和而泰电子科技有限公司 | Electric water boiler |
| CN201048279Y (en) * | 2007-05-29 | 2008-04-16 | 刘仁豪 | Submerged pump motor protector |
| CN202108081U (en) * | 2011-05-04 | 2012-01-11 | 苏宪俊 | Intelligent water level controller for water tower |
-
2014
- 2014-07-30 CN CN201410368356.0A patent/CN104141614A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989005050A1 (en) * | 1987-11-19 | 1989-06-01 | Hans Bremel | Protective device for electrical mains appliances, in particular manual appliances |
| CN2329108Y (en) * | 1998-05-15 | 1999-07-14 | 叶秋华 | Electricity cut-off protector when water free |
| CN200948064Y (en) * | 2006-09-18 | 2007-09-19 | 深圳市和而泰电子科技有限公司 | Electric water boiler |
| CN201048279Y (en) * | 2007-05-29 | 2008-04-16 | 刘仁豪 | Submerged pump motor protector |
| CN202108081U (en) * | 2011-05-04 | 2012-01-11 | 苏宪俊 | Intelligent water level controller for water tower |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508500A (en) * | 2017-09-22 | 2017-12-22 | 宁波普乐菲智能科技有限公司 | Motor enters water starting switch and enters the dust catcher of water starting switch using motor |
| CN107508500B (en) * | 2017-09-22 | 2024-02-09 | 淮安普乐菲智能科技有限公司 | Motor water-in starting switch and dust collector applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141112 |