CN2908866Y - Submerged pump with power-off protector when water-break - Google Patents
Submerged pump with power-off protector when water-break Download PDFInfo
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- CN2908866Y CN2908866Y CN 200620013644 CN200620013644U CN2908866Y CN 2908866 Y CN2908866 Y CN 2908866Y CN 200620013644 CN200620013644 CN 200620013644 CN 200620013644 U CN200620013644 U CN 200620013644U CN 2908866 Y CN2908866 Y CN 2908866Y
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- water
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- pump
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Abstract
A submerged water pump with a water shortage power-off protector comprises a water pump body and a water shortage power-off protector. The protector is equipped in a holding chamber in the pump body, and sealed up with waterproofer between the pump body and the holding chamber. The protector comprises an AC drive circuit, a control circuit and a housing. The water pump is connected with the AC drive circuit in series. An upper conductive body, a medium conductive body and a lower conductive body are arranged from top to bottom, and protrude through outer wall of the pump body and are exposed; the three conductive bodies are connected with anode of a power supply and two input ends of the control circuit, respectively, and are used to check water level of the water pump so that the control circuit can control start-up and stop of the water pump. Accordingly, the utility model has the functions of water shortage power-off protection and over-current protection. By introducing such a utility model, volume of the product is significantly reduced, service life and safety in operation of the submerged water pump are improved. In addition, the modularized water shortage power-off protector has desirable waterproof quality, and can be used together with a mini-type submerged water pump under water, and meet requirements of microminiaturization.
Description
Technical field
The utility model relates to pump technology; specifically be a kind of the have submerged pump of lack of water power-off protection apparatus and lack of water power-off protection apparatus of special purpose die blocking; do conductor with water and realize that lack of water detects; have multinomial functions such as lack of water power-off protection, overcurrent protection, submerged pump working life and safety in operation are improved.
Background technique
The submerged pump that is used for Po Li, pottery magnetic, fountain and fish jar aquarium at present on the market.General powerful water pump has only need add the power breaker that a temperature detect switch (TDS) is done protection because of safety in the pump housing; but because of being subjected to the peripheral environment temperature-difference too big, the outage that can accurately be when lack of water not real-time outage or the too high meeting of external temperature become misoperation.
And little water pump more is difficult to the device temperature detect switch (TDS) for a short time because of volume and safety does not have mandatory requirement, has generally also all ignored this safety problem.And because little water pump is to be used for indoor and the use of table type fountain mostly.The Shen water motor still is rotated further when the fountain lack of water, the long-time interior safe disaster that takes place easily.
Summary of the invention
In view of the prior art above shortcomings; the utility model provides a kind of submerged pump with lack of water power-off protection apparatus; and the submerged pump that has lack of water power-off protection apparatus and DC/AC inverter simultaneously, to improve submerged pump working life and safety in operation, satisfy the demand in market.
Simultaneously, the utility model can also provide a kind of lack of water power-off protection apparatus that is exclusively used in miniature submerged pump, and it has desirable water-proof performance, can be under water and the supporting use of miniature submerged pump.
The submerged pump that the utlity model has the lack of water power-off protection apparatus comprises water pump body, also comprises a lack of water power-off protection apparatus, and described device is loaded in the holding cavity in the pump housing, and and the holding cavity of the described pump housing between adopt the water-proofing material sealing; Described device contains AC driving circuit, control circuit and housing, water pump is serially connected with in its AC driving circuit, the last electric conductor that is arranged above and below of described device, middle electric conductor and following three electric conductors of electric conductor pass pump housing outer wall and expose, described three electric conductors are power positive end and two input ends of connection control circuit respectively, be used to detect the water level height of water pump position, and then by the start and stop of control circuit control of pump.
Described lack of water power-off protection apparatus can contain current sampling circuit; the current sampling resistor of described current sampling circuit is connected in the described AC driving circuit; another input end of output terminal connection control circuit of current sampling circuit, to the overcurrent protection of water pump whether control circuit is determined according to the output value of current sampling circuit.
Also the DC/AC inverter can be installed in the holding cavity in the pump housing, fill marine glue between the core section of this DC/AC inverter and the casing, two power supply terminals of the described water pump of output termination of inverter, the outside standby DC electrical source of the input termination of inverter.
Be exclusively used in the lack of water power-off protection apparatus of miniature submerged pump, comprise housing and with the core section of marine glue sealing in housing, described core section comprises:
One AC driving circuit, it comprises a two-way controllable silicon;
One control circuit, electric conductor reached electric conductor down during its two input ends connected respectively, and power positive end connects goes up electric conductor, the described The Trigger of Bidirectional Triode Thyristor end of output termination;
One current sampling circuit, it comprises a triode and the current sampling resistor that is connected in the described AC driving circuit, the base stage of the sampling termination triode of current sampling resistor, the grounded-emitter connection of triode, the collector electrode of triode connects another input end of described control circuit; And,
One direct current power supply is used for providing working power to control circuit etc.
The utility model in the pump housing of submerged pump, has lack of water power-off protection, overcurrent protection function with the sealing of lack of water power-off protection apparatus, and small product size reduces greatly, can improve submerged pump working life and safety in operation.
It has the submerged pump of DC/AC inverter, and can be widely used in the solar powered grade of outdoor use does not have to have the lift height, characteristics such as long service life in the water spray or fountain product of ac power supply.
Its independently the lack of water power-off protection apparatus have desirable water-proof performance, can be under water and the supporting use of miniature submerged pump, satisfy the demand of microminiaturized product.
The design that the utility model is cut the supply of water and electricity promptly can overcome AC and the DC water pump cuts off the power supply when lack of water and water pump is worked as the power down function that current overload can be done protection when malfunction.
Description of drawings
Fig. 1 a, b, c are the structural representation of the utility model exemplary embodiments;
Fig. 2 a, b are its lack of water power-off protection apparatus example structure and are connected the use schematic representation with miniature submerged pump;
Fig. 3 a, b implement 1 circuit diagram for its lack of water power-off protection apparatus;
Fig. 4 a, b implement 2 circuit diagram for its lack of water power-off protection apparatus.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
With reference to Fig. 1, this embodiment has the submerged pump of lack of water power-off protection apparatus, comprise water pump body 1, water pump mainly comprises the pump housing, be installed on the AC motor in the pump housing and be loaded on impeller on the Ac arbor, also be provided with the lack of water power-off protection apparatus especially, described device is loaded in the holding cavity 7 in the pump housing, and and the holding cavity of the described pump housing between adopt the water-proofing material sealing; Described device contains core section 4 and housings 3 such as AC driving circuit, control circuit, fill the marine glue sealing between core section 4 and the casing 3, water pump is serially connected with in its AC driving circuit, the last electric conductor Neta that is arranged above and below of described device, middle electric conductor Netb and following three electric conductors of electric conductor Netc pass the pump housing 1 outer wall and expose, described three electric conductors are power positive end and two input ends of connection control circuit respectively, be used to detect the water level height of water pump position, and then by the start and stop of control circuit control of pump.
Described lack of water power-off protection apparatus can contain current sampling circuit; the current sampling resistor of described current sampling circuit is connected in the described AC driving circuit; another input end of output terminal connection control circuit of current sampling circuit, to the overcurrent protection of water pump whether control circuit is determined according to the output value of current sampling circuit.
Do not have to use in the water spray of ac power supply or the fountain product for adapting to the solar powered grade of outdoor use, one DC/AC inverter also can be installed in the holding cavity 7 in the pump housing, fill marine glue between the core section of this DC/AC inverter and the casing, two power supply terminals of the described AC motor of output termination of inverter, the outside standby DC electrical source of the input termination of inverter.
Expose on the pump housing 1 the lack of water power-off protection apparatus on electric conductor Neta, middle electric conductor Netb and following electric conductor Netc part, safety cover 5 is set, some bar shape trench holes 6 that water are used of crossing are arranged on this safety cover 5.
The last electric conductor Neta of described lack of water power-off protection apparatus and the distance between the middle electric conductor Netb be between middle electric conductor Netb and the following electric conductor Netc distance 1.2---2 times; can select according to the size of submerged pump, multiselect is selected as 1.5 times, 2 times etc. in the specific embodiment.
Fig. 3 a, b are its lack of water power-off protection apparatus embodiment 1 circuit diagram.Among Fig. 3 a, AC driving circuit comprises bidirectional triode thyristor Q2; Control circuit U1 is the integrated control IC of monolithic LMY-04, the PRA0 of IC U1, the PRA1 pin is the water level detecting signal input part, electric conductor NETb reaches electric conductor NETc down in external respectively, power positive end connects goes up electric conductor NETa, and output terminal PRA3 connects the trigger end of described bidirectional triode thyristor Q2 by a resistance R 4; Current sampling circuit comprises triode Q1 and the current sampling resistor R5 that is connected in the described AC driving circuit, the sampling end of current sampling resistor R5 connects the base stage of triode Q1 by a resistance, the grounded-emitter connection of triode Q1, the collector electrode of triode Q1 connects described control
The system circuitIC U1
In addition One input endPRA2.
Because the electric conductivity of water, electric conductor NETb, NETc can detect the voltage on the electric conductor NETa, thereby make the PRA3 pin output high level of U1, make controllable silicon Q2 conducting, make pump operation.When water level is reduced to electric conductor NETa when following,, water pump is remained in operation owing to also can detect the voltage on the electric conductor NETb on the electric conductor NETc.When drawdown was following to electric conductor NETb, when electric conductor NETc detected less than voltage, U1 PRA3 pin output low level was ended controllable silicon Q2, and water pump quits work.When water level rose to electric conductor NETb, because electric conductor NETc detects less than the voltage on the electric conductor NETa, water pump continued to quit work.When water level rose to electric conductor NETa, electric conductor NETc detected voltage, and U1 PRA3 pin output high level makes pump operation.The PRA2 pin of U1 is the current detecting end, and the electric current on flowing through R5 continuous 3 seconds, current conversion became voltage on R5, makes the Q1 conducting when surpassing setting value, and the PRA2 pin of U1 becomes low level by high level, and the PRA3 pin of U1 is turned off, and water pump is shut down.After one minute, open again.When being turned off for continuous three times, U1 closes output and locking.When water pump is disconnected power supply and recloses power supply, U2 zero clearing, proper functioning.Repeat according to this.
Fig. 3 b represents DC electrical source, and being used for provides working power to control circuit U1.AC low-tension 12-24V is through the D1 rectification, C1, C2 filtering, three terminal regulator U2 voltage stabilizing, C3, C4 filtering, the output control circuit U1 needed VDC VDD that works.
Fig. 4 a, b are its lack of water power-off protection apparatus embodiment 2 circuit diagram.Among Fig. 4 a, AC driving circuit comprises bidirectional triode thyristor Q2; Control circuit U1 is the integrated control IC of monolithic LMY-04, the PRA0 of IC U1, the PRA1 pin is the water level detecting signal input part, electric conductor NETb reaches electric conductor NETc down in external respectively, power positive end connects goes up electric conductor NETa, output terminal PRA3 connects the input end of optical coupler U4 by current-limiting resistance R13, and optical coupler U4 output connects the trigger end of bidirectional triode thyristor Q2.Current sampling electricity prison comprise optical coupler U3 and and be connected on current sampling resistor R16 in the described AC driving circuit, the sampling end of current sampling resistor R16 connects the input end of optical coupler U3 by current-limiting resistance R15, and the output of optical coupler U3 connects described another input end of control circuit U1 PRA2.
The DC electrical source of Fig. 4 b can adopt switch power, and this switch power is transformed to the DC low-voltage that adapts to control circuit work with the ac high-voltage of the 100V-240V of input.
Since the electric conductivity of water, electric conductor NETb, NETc can detect the voltage on the electric conductor NETa, thereby makes the PRA3 pin output high level of U2, and this high level is coupled by optical coupler, makes controllable silicon lead the Q2 conducting, makes pump operation.When water level is reduced to electric conductor NETa when following,, water pump is remained in operation owing to also can detect the voltage on the electric conductor NETb on the electric conductor NETc.When drawdown is following to electric conductor NETb, when electric conductor NETc detects less than voltage, the PRA3 pin output low level of U2, this low level is coupled through optical coupler, and controllable silicon Q2 is ended, and water pump quits work.When water level rose to electric conductor NETb, because electric conductor NETc detects less than the voltage on the electric conductor NETa, water pump continued to quit work.When water level rose to electric conductor NETa, electric conductor NETc detected voltage, and U2PRA3 pin output high level makes pump operation.The PRA2 pin of U2 is the current detecting end, and the electric current on flowing through R16 continuous 3 seconds, current conversion became voltage on R16 when surpassing setting value, make optical coupler U3 conducting, the PRA2 pin of U2 becomes low level by high level, and the PRA3 pin of U2 is turned off, and water pump is shut down.After one minute, open again.When being turned off for continuous three times, U2 closes output and locking.When water pump is disconnected power supply and recloses power supply, U2 zero clearing, proper functioning.Repeat according to this.U3, U4 is an optical coupler, and ac high-voltage and dc low-voltage are isolated fully.
When product adopts miniature submerged pump, can adopt modularization lack of water power-off protection apparatus and the supporting use of miniature submerged pump of Fig. 2 a, both use schematic representation of Fig. 2 b.
The lack of water power-off protection apparatus that is exclusively used in submerged pump comprises: housing and with the core section of marine glue sealing in housing, and described core section comprises:
One AC driving circuit, it comprises a two-way controllable silicon;
One control circuit, electric conductor reached electric conductor down during its two input ends connected respectively, and power positive end connects goes up electric conductor, and output terminal connects described The Trigger of Bidirectional Triode Thyristor end by a resistance;
One current sampling circuit, it comprises a triode and the current sampling resistor that is connected in the described AC driving circuit, the sampling end of current sampling resistor connects the base stage of triode by current-limiting resistance, the grounded-emitter connection of triode, the collector electrode of triode connect another input end of described control circuit; And,
One direct current power supply is used for providing working power to control circuit.
When adopting the submerged pump of 100V-240VAC, the above-mentioned modular lack of water power-off protection apparatus that is exclusively used in submerged pump comprises: housing and with the core section of marine glue sealing in housing, and described core section comprises:
One AC driving circuit, it comprises a two-way controllable silicon;
One control circuit, electric conductor and following electric conductor during its two input ends connect respectively, power positive end connects goes up electric conductor, and output terminal connects the input end of first optical coupler by a resistance, and the output of first optical coupler connects described The Trigger of Bidirectional Triode Thyristor end,
One current sampling circuit, it comprise second optical coupler and and be connected on current sampling resistor in the described AC driving circuit, the sampling end of current sampling resistor connects the input end of second optical coupler by current-limiting resistance, and the output of second optical coupler connects another input end of described control circuit; And,
One direct current power supply, it is transformed to ac high voltage the DC low-voltage that adapts to control circuit work.
Claims (10)
1, have the submerged pump of lack of water power-off protection apparatus, comprise water pump body, it is characterized in that: comprise a lack of water power-off protection apparatus, described device is loaded in the holding cavity in the pump housing, and and the holding cavity of the described pump housing between adopt the water-proofing material sealing; Described device contains AC driving circuit, control circuit and housing, water pump is serially connected with in its AC driving circuit, the last electric conductor that is arranged above and below of described device, middle electric conductor and following three electric conductors of electric conductor pass pump housing outer wall and expose, described three electric conductors are power positive end and two input ends of connection control circuit respectively, be used to detect the water level height of water pump position, and then by the start and stop of control circuit control of pump.
2, according to the submerged pump with lack of water power-off protection apparatus of claim 1; it is characterized in that: described lack of water power-off protection apparatus contains current sampling circuit; the current sampling resistor of described current sampling circuit is connected in the described AC driving circuit, another input end of output terminal connection control circuit of current sampling circuit.
3,, it is characterized in that described lack of water power-off protection apparatus comprises according to the submerged pump with lack of water power-off protection apparatus of claim 1 or 2: housing and with the core section of marine glue sealing in housing, described core section comprises:
One AC driving circuit, it comprises a two-way controllable silicon;
One control circuit, electric conductor reached electric conductor down during its two input ends connected respectively, and power positive end connects goes up electric conductor, the described The Trigger of Bidirectional Triode Thyristor end of output termination;
One current sampling circuit, it comprises a triode and the current sampling resistor that is connected in the described AC driving circuit, the base stage of the sampling termination triode of current sampling resistor, the grounded-emitter connection of triode, the collector electrode of triode connects another input end of described control circuit; And,
One direct current power supply is used for providing working power to control circuit.
4,, it is characterized in that described lack of water power-off protection apparatus comprises according to the submerged pump with lack of water power-off protection apparatus of claim 1 or 2: housing and with the core section of marine glue sealing in housing, described core section comprises:
One AC driving circuit, it comprises a two-way controllable silicon;
One control circuit, electric conductor reached electric conductor down during its two input ends connected respectively, and power positive end connects goes up electric conductor, the input end of output termination first optical coupler, first optical coupler is exported and is connect described The Trigger of Bidirectional Triode Thyristor end,
One current sampling circuit, it comprise second optical coupler and and be connected on current sampling resistor in the described AC driving circuit, the input end of sampling termination second optical coupler of current sampling resistor, the output of second optical coupler connects another input end of described control circuit; And,
One direct current power supply, it is transformed to ac high voltage the DC low-voltage that adapts to control circuit work.
5, according to the submerged pump with lack of water power-off protection apparatus of claim 3 or 4, it is characterized in that: described control circuit adopts integrated control circuitry LMY-04 chip.
6, according to the submerged pump with lack of water power-off protection apparatus of claim 1 or 2, it is characterized in that: the last electric conductor of described lack of water power-off protection apparatus and the distance between the middle electric conductor are 1.2-2 times of the distance between middle electric conductor and the following electric conductor.
7, according to the submerged pump with lack of water power-off protection apparatus of claim 1 or 2; it is characterized in that: expose on the pump housing lack of water power-off protection apparatus on electric conductor, middle electric conductor and electric conductor part down; safety cover is set, some bar shape trench holes that water is used of crossing are arranged on this safety cover.
8, according to the submerged pump with lack of water power-off protection apparatus of claim 1 or 2; it is characterized in that: the DC/AC inverter also is housed in the holding cavity in the pump housing; fill marine glue between the core section of this DC/AC inverter and the casing; two power supply terminals of the described water pump of output termination of inverter, the outside standby DC electrical source of the input termination of inverter.
9, be exclusively used in the lack of water power-off protection apparatus of submerged pump, it is characterized in that comprising: housing and with the core section of marine glue sealing in housing, described core section comprises:
One AC driving circuit, it comprises a two-way controllable silicon;
One control circuit, electric conductor reached electric conductor down during its two input ends connected respectively, and power positive end connects goes up electric conductor, the described The Trigger of Bidirectional Triode Thyristor end of output termination;
One current sampling circuit, it comprises a triode and the current sampling resistor that is connected in the described AC driving circuit, the base stage of the sampling termination triode of current sampling resistor, the grounded-emitter connection of triode, the collector electrode of triode connects another input end of described control circuit; And,
One direct current power supply is used for providing working power to control circuit.
10, be exclusively used in the lack of water power-off protection apparatus of submerged pump, it is characterized in that comprising: housing and with the core section of marine glue sealing in housing, described core section comprises:
One AC driving circuit, it comprises a two-way controllable silicon;
One control circuit, electric conductor reached electric conductor down during its two input ends connected respectively, and power positive end connects goes up electric conductor, the input end of output termination first optical coupler, first optical coupler is exported and is connect described The Trigger of Bidirectional Triode Thyristor end,
One current sampling circuit, it comprise second optical coupler and and be connected on current sampling resistor in the described AC driving circuit, the input end of sampling termination second optical coupler of current sampling resistor, the output of second optical coupler connects another input end of described control circuit; And,
One direct current power supply, it is transformed to ac high voltage the DC low-voltage that adapts to control circuit work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013644 CN2908866Y (en) | 2006-04-26 | 2006-04-26 | Submerged pump with power-off protector when water-break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620013644 CN2908866Y (en) | 2006-04-26 | 2006-04-26 | Submerged pump with power-off protector when water-break |
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| Publication Number | Publication Date |
|---|---|
| CN2908866Y true CN2908866Y (en) | 2007-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620013644 Expired - Fee Related CN2908866Y (en) | 2006-04-26 | 2006-04-26 | Submerged pump with power-off protector when water-break |
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| CN (1) | CN2908866Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012003788A1 (en) * | 2010-07-08 | 2012-01-12 | 漳州灿坤实业有限公司 | Water pump control circuit and water pump control method |
| CN102628444A (en) * | 2011-02-07 | 2012-08-08 | 爱三工业株式会社 | Electric pum |
| CN104135215A (en) * | 2014-08-14 | 2014-11-05 | 哈尔滨工业大学 | Non-contact motor driving device with intelligent overcurrent protection function |
| CN104265653A (en) * | 2014-09-22 | 2015-01-07 | 浙江科力车辆控制系统有限公司 | Novel electric water pump |
| CN107491064A (en) * | 2017-10-14 | 2017-12-19 | 厦门芯阳科技股份有限公司 | A kind of water pump concatenation temperature controller control circuit and temperature controller condition detection method |
| CN111852835A (en) * | 2020-08-18 | 2020-10-30 | 江阴市博今环保设备有限公司 | Water pump water-break protection device and method |
| WO2022205766A1 (en) * | 2021-03-31 | 2022-10-06 | 浙江大元泵业股份有限公司 | Water shortage detection and control method for submersible pump |
-
2006
- 2006-04-26 CN CN 200620013644 patent/CN2908866Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012003788A1 (en) * | 2010-07-08 | 2012-01-12 | 漳州灿坤实业有限公司 | Water pump control circuit and water pump control method |
| CN102628444A (en) * | 2011-02-07 | 2012-08-08 | 爱三工业株式会社 | Electric pum |
| CN104135215A (en) * | 2014-08-14 | 2014-11-05 | 哈尔滨工业大学 | Non-contact motor driving device with intelligent overcurrent protection function |
| CN104265653A (en) * | 2014-09-22 | 2015-01-07 | 浙江科力车辆控制系统有限公司 | Novel electric water pump |
| CN104265653B (en) * | 2014-09-22 | 2016-06-22 | 浙江科力车辆控制系统有限公司 | Electric water pump |
| CN107491064A (en) * | 2017-10-14 | 2017-12-19 | 厦门芯阳科技股份有限公司 | A kind of water pump concatenation temperature controller control circuit and temperature controller condition detection method |
| CN111852835A (en) * | 2020-08-18 | 2020-10-30 | 江阴市博今环保设备有限公司 | Water pump water-break protection device and method |
| WO2022205766A1 (en) * | 2021-03-31 | 2022-10-06 | 浙江大元泵业股份有限公司 | Water shortage detection and control method for submersible pump |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 Termination date: 20130426 |