CN202531407U - Electromagnetic water pump capable of controlling output flow - Google Patents
Electromagnetic water pump capable of controlling output flow Download PDFInfo
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- CN202531407U CN202531407U CN2012200729357U CN201220072935U CN202531407U CN 202531407 U CN202531407 U CN 202531407U CN 2012200729357 U CN2012200729357 U CN 2012200729357U CN 201220072935 U CN201220072935 U CN 201220072935U CN 202531407 U CN202531407 U CN 202531407U
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Abstract
The utility model relates to the technical field of electromagnetic water pumps, in particular to an electromagnetic water pump capable of controlling output flow. The electromagnetic water pump capable of controlling the output flow comprises a pump body, an electromagnetic coil module installed outside the pump body and a magnetic core plunger installed in the pump body. The magnetic core plunger is pushed to reciprocate through a pulse type electromagnetic field generated by an electromagnetic coil. The electromagnetic water pump is further provided with a control circuit, a current sampling element and a switch control element are arranged between the control circuit and the coil positioned in the electromagnetic coil module, and by sampling analysis of current in the coil, the switch control element is controlled and adjusted, and frequency of the current input into the coil is changed. Variation of the flow is compensated by measuring variation of the current in the coil. According to the technical scheme, the electromagnetic water pump has the advantages that a temperature sensor is not required, a circuit is simple, and the reliability is high; the electromagnetic water pump insusceptible to influence of external temperature and is subjected to little influence of external disturbance; and the current is related to the temperature of the whole coil, the temperature of the pump body can be reflected, and the compensation effect is good.
Description
Technical field:
The utility model relates to the Electromagnetic water pump technical field, refers in particular to a kind of Electromagnetic water pump of may command output flow.
Background technique:
At present, small-sized plunger type Electromagnetic water pump has obtained using widely in every field, and particularly miniature plunger type water pump has obtained extensive use with the small and exquisite precision of its structure, and it can be applied in products such as coffee machine, steam generating device.The principle of plunger type Electromagnetic water pump is: plunger is not to utilize bent axle or applied external force, and plunger is a action of a magnetic field lower stress externally, carries out reciprocal operation.Wherein the external magnetic field is half-wave operation, and electromagnetic field only applies the power of compression direction (forward operation) to plunger, and the stressed spring that comes from water pump inside during plunger return (inverted running).Under the effect of electromagnetic force and spring force, plunger back and forth moves, and water is sucked by water intake, is pumped by water outlet.
Plunger whenever comes and goes operation once in the electromagnetic pump, and water outlet will pump the liquid of a specific discharge.It is a kind of working method of pulsed, if provide this break-make electrical pulse continuously, pump just can the continuous impulse formula pumps liquid.Want to increase the flow of (or reducing) pump, the number of times of break-make electrical pulse that only needs to increase (or minimizing) electromagnetic pump is just passable.So, under the constant situation of the power frequency in supplying with electromagnetic pump, remain unchanged on the flow theory of electromagnetic pump pump water at present.But in actual use,, occur easily changing because external cause will cause the flow of electromagnetic pump can't keep stable.Concrete reason is following, and along with the rising of electromagnetic pump body operating temperature, the gap between each moving element, frictional force etc. all can change, thereby the liquid measure that causes each pulse to pump can change, and just whole flow can change.Also, some application area of electromagnetic pump have been limited because of this reason.
Solution to the problems described above is at present: a temperature transducer is installed on the coil of electromagnetic pump; Through measuring variation of temperature; Come the number of pulses of electromagnetic pump is compensated, also just flow is compensated, this has just improved the discharge stability of electromagnetic pump.But can increase temperature transducer through measuring the coil method of temperature; Increased cost; Also will increase wiring in addition, rate of fault can increase, and the measurement of simultaneous temperature receives the influence of ambient temperature again easily; Nor can measure the actual temperature (the only temperature of energy measurement coil surface) of coil inside exactly, so this compensation effect is not too desirable.
The model utility content:
The utility model technical problem to be solved is to overcome the existing in prior technology deficiency; A kind of Electromagnetic water pump of may command output flow is provided; Be applied to the demand of different use occasions; The utility model is through electric current is carried out sample analysis, according to its frequency of change in current adjustment, thereby realizes that the electromagnetic pump flow keeps constant.
In order to solve the problems of the technologies described above; The utility model has adopted following technical proposals: the Electromagnetic water pump of this may command output flow comprises: the pump housing, the magnetic core plunger that is installed in the outside electromagnetic coil module of the pump housing and is installed in pump housing inside; The pulsed electromagnetic field promotion magnetic core plunger that produces through electromagnetic coil back and forth moves; This Electromagnetic water pump also has a control circuit, is provided with a current sampling element and switch control unit between the coil in control circuit and electromagnetic coil module, through the sample analysis control switch control unit to electric current in the coil; Adjustment switch control unit, change inputs to the power frequency in the coil.
Furthermore, in the technique scheme, described current sampling element is the resistance that is connected with control circuit.
Furthermore, in the technique scheme, described switch control unit is a controllable silicon.
Furthermore, in the technique scheme, be provided with the Returnning spring that acts on the plunger in the described pump housing, back and forth move through the magnetic force of electromagnetic coil module generation and the elastic force driven magnetic stem stem plug of Returnning spring.
Current sampling element and switch control unit have been increased between the utility model control circuit and the electromagnetic pump coil; Work through control circuit control switch control unit (for example controllable silicon) control electromagnetic pump; When accelerating the conducting number of times of (or slowing down) controllable silicon in the unit time (changing the frequency of pulsed electric current), just can strengthen the flow of (or reducing) electromagnetic pump.Current sampling element in the utility model detects the operating current of electromagnetic pump; Deliver to and carry out calculation process in the control circuit; Control circuit can be according to the change in current amount; Backoff algorithm according to setting calculates the corresponding compensation amount automatically, revises (increase or reduce) silicon controlled conducting number of times with this, thereby realizes the effect of electromagnetic pump constant flow.
The influence that the utility model changes with pump body temperature to the electromagnetic pump flow is adopted the variation through measure coil currents, the variation that comes compensating flowrate.Its working principle is: variation of temperature directly can influence change in current, and this temperature is the bulk temperature of coil, more directly more accurately more is difficult for having external temperature to disturb.On the other hand, the size of electric current also has the coherence of part with the size of flow, come compensating flowrate variation meeting more favourable with current change quantity.This programme has following advantage:
1, no temperature transducer, the more simple and reliable property of circuit is higher;
2, be not subject to externally temperature influence, it is little influenced by external interference.
3, electric current is relevant with the coil bulk temperature, more can reflect the temperature of the pump housing, and compensation effect is better.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circuit theory diagrams.
Embodiment:
Below in conjunction with specific embodiment and accompanying drawing the utility model is further specified.
See shown in Figure 1ly, what present embodiment adopted is a kind of half-wave Electromagnetic water pump, and it comprises: the pump housing 1, electromagnetic coil module 2, plunger 3 and Returnning spring 4.Wherein, Electromagnetic coil module 2 is installed in the pump housing 1 outside; The plunger 3 that adopts magnetic core to make is installed in the pump housing 1 internal cavity; Returnning spring 4 is arranged in the pump housing 1, and Returnning spring 4 acts on the plunger 3, and it is in the opposite direction that Returnning spring 4 acts on the electromagnetic force that elastic force direction and electromagnetic coil module 2 on the plunger 3 act on the plunger 3.
See shown in Figure 2ly, this is the circuit theory diagrams of present embodiment, in the entire circuit cut-in operation power supply, is provided with a current sampling element 6 and switch control unit 7 between the coil in control circuit 5 and the electromagnetic coil module 2.Current sampling element 6 is for being connected in the resistance in the working circuit in the present embodiment, and switch control unit 7 adopts controllable silicon.Certainly, also can adopt other electronic components to replace as required.
The turn-on frequency of control circuit 5 control switch control units 7, under specified operating current I, the frequency of its conducting is A.When along with operating time of electromagnetic pump increases, after the heat that produces in the coil makes its temperature raise, variations of will being burdened with of the resistance R of coil will cause operating current to change into I1 by I like this, thus the pump water yield of initiation electromagnetic pump.The utility model is through the sampling to electric current in the circuit; Understand the operating current of coil in real time, detecting operating current is I1, and control circuit 5 will change the turn-on frequency of switch control unit 7 according to present current values this moment; Frequency is adjusted to A1 by A; Thereby form the working state of electromagnetic pump is revised, returned to original pump water flow, thereby realize the effect of electromagnetic pump constant flow.
Certainly; The above is merely the specific embodiment of the utility model; Be not to limit the utility model practical range, all equivalences of doing according to the said structure of the utility model claim, characteristic and principle change or modify, and all should be included in the utility model claim.
Claims (4)
1. the Electromagnetic water pump of may command output flow; Comprise: the pump housing, the magnetic core plunger that is installed in the outside electromagnetic coil module of the pump housing and is installed in pump housing inside; The pulsed electromagnetic field promotion magnetic core plunger that produces through electromagnetic coil back and forth moves; It is characterized in that: this Electromagnetic water pump also has a control circuit, is provided with a current sampling element and switch control unit between the coil in control circuit and electromagnetic coil module, through the sample analysis control switch control unit to electric current in the coil; Adjustment switch control unit changes the frequency that inputs to the impulsive current in the coil.
2. the Electromagnetic water pump of may command output flow according to claim 1 is characterized in that: the resistance of described current sampling element for being connected with control circuit.
3. the Electromagnetic water pump of may command output flow according to claim 1 is characterized in that: described switch control unit is a controllable silicon.
4. the Electromagnetic water pump of may command output flow according to claim 1; It is characterized in that: be provided with the Returnning spring that acts on the plunger in the described pump housing, back and forth move through the magnetic force of electromagnetic coil module generation and the elastic force driven magnetic stem stem plug of Returnning spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200729357U CN202531407U (en) | 2012-03-01 | 2012-03-01 | Electromagnetic water pump capable of controlling output flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200729357U CN202531407U (en) | 2012-03-01 | 2012-03-01 | Electromagnetic water pump capable of controlling output flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202531407U true CN202531407U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200729357U Expired - Lifetime CN202531407U (en) | 2012-03-01 | 2012-03-01 | Electromagnetic water pump capable of controlling output flow |
Country Status (1)
| Country | Link |
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| CN (1) | CN202531407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562553A (en) * | 2012-03-01 | 2012-07-11 | 深圳华星恒泰泵阀有限公司 | Electromagnetic water pump and output flow control method thereof |
| CN109611310A (en) * | 2018-12-29 | 2019-04-12 | 中国原子能科学研究院 | A kind of electromagnetic field circular arc conduit electromagnetic pump and electromagnetism pumping system |
-
2012
- 2012-03-01 CN CN2012200729357U patent/CN202531407U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562553A (en) * | 2012-03-01 | 2012-07-11 | 深圳华星恒泰泵阀有限公司 | Electromagnetic water pump and output flow control method thereof |
| CN109611310A (en) * | 2018-12-29 | 2019-04-12 | 中国原子能科学研究院 | A kind of electromagnetic field circular arc conduit electromagnetic pump and electromagnetism pumping system |
| CN109611310B (en) * | 2018-12-29 | 2023-09-29 | 中国原子能科学研究院 | Electromagnetic field circular arc conduit electromagnetic pump and electromagnetic pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Shenzhen City, Guangdong province Baoan District 518100 District 67 Liuxian road Jiaan Science Park No. 1 building 4 floor area 3 Patentee after: Shenzhen Huaxinghengtai Valve Co., Ltd. Patentee after: Shenzhen Longood Intelligent Electric Co., Ltd. Address before: Shenzhen City, Guangdong province Baoan District 518100 District 67 Liuxian road Jiaan Science Park No. 1 building 4 floor area 3 Patentee before: Shenzhen Huaxinghengtai Valve Co., Ltd. Patentee before: Shenzhen Langke Electrical Appliance Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |