CN204900183U - Improve miniature electromagnetic pump of flow precision - Google Patents
Improve miniature electromagnetic pump of flow precision Download PDFInfo
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- CN204900183U CN204900183U CN201520492992.4U CN201520492992U CN204900183U CN 204900183 U CN204900183 U CN 204900183U CN 201520492992 U CN201520492992 U CN 201520492992U CN 204900183 U CN204900183 U CN 204900183U
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- valve pocket
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- iron core
- limited post
- outlet pipe
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Abstract
The utility model discloses an improve miniature electromagnetic pump of flow precision, include: a pump body, the both ends of the pump body are provided with an inlet tube and an outlet pipe, in the inside valve pocket that forms of the pump body, valve pocket and inlet tube and outlet pipe intercommunication, there is the solenoid module in pump body externally mounted, installs magnetic core plunger subassembly in the valve pocket, the valve pocket in be provided with a spacing post between inlet tube and magnetic core plunger subassembly, this spacing post restricts the stroke of magnetic core plunger subassembly in the valve pocket. The utility model discloses at the internally mounted of the pump body a spacing post, restricted the stroke of iron core through this spacing post, reduced the flow of the pump body, also improved the accuracy of flow simultaneously, be applicable to the device that needs accurate flow.
Description
Technical field:
The utility model relates to electromagnetic pump technical field, special a kind of minisize electromagnetic pump improving flow accuracy.
Background technique:
Traditional plunger type water pump, due to the characteristic of self structure, cannot be applied in microminiaturized product.At present, small-sized plunger type electromagnetic water pump is widely used in every field.The principle of plunger type electromagnetic water pump is: plunger much utilizes bent axle or applied external force, plunger is at outside magnetic force lower stress, carry out reciprocal operation, wherein the half-wave of external magnetic field runs, electromagnetic field only applies the power of compression direction (forward operation) to plunger, and the stressed spring coming from water pump inside time plunger return (inverted running), under the effect of electromagnetic force and spring force, piston reciprocation runs, water is sucked by water intake, is pumped by water outlet.
At present, the plunger type water pump that market occurs comprises: the pump housing, be arranged at the electromagnetic coil assembly of pump housing outside, be installed on the magnetic core plunger of pump body, a cavity run for plunger is provided with in its middle pump body, the front end and back end of this cavity is provided with intake pipe and outlet pipe, in cavity, be also provided with spring, this spring act on core post beyond the Great Wall.During work, it is that half-wave runs that electromagnetic coil produces magnetic force, so when plunger runs to range, the magnetic force hour of electromagnetic coil, plunger will be implemented to initial position under the action of the spring, and the water be now inhaled in cavity will be ejected by outlet pipe.So constantly back and forth run at the effect lower plunger of electromagnetic force and spring force, carry out the operation of pump water.
Can find out due to described, current plunger type water pump piston structure, the size of setting-out water yield when its pump water yield depends on every second compression, namely the flow accuracy of its pump water depends primarily on the displacement of plunger.But the displacement of plunger is the compressive force of magnetic force by electromagnetic field and spring.When water pump operation, magnetic force may produce fluctuation because of the change of the loss of element, electric current, and elastic fatigue also may be there is because service time is long in spring, these are all built and change to the displacement of plunger, cause the flow accuracy of its pump water uncontrollable in a less scope, cannot be applicable to some needs in the device of high-precision flow.
In view of this, the present inventor improves Electromagnetic water pump of the prior art.
Model utility content:
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of minisize electromagnetic pump improving flow accuracy.
In order to solve the problems of the technologies described above, the utility model have employed following technical proposals: the minisize electromagnetic pump improving flow accuracy, and comprising: a pump housing, the two ends of the pump housing are provided with an intake pipe and an outlet pipe, form a valve pocket in pump body, valve pocket is communicated with outlet pipe with intake pipe; In pump housing outside, electromagnetic coil module is installed, core post plug assembly is installed in valve pocket, in described valve pocket, between intake pipe and core post plug assembly, be provided with a limited post, the stroke of this limited post restriction core post plug assembly in valve pocket.
Furthermore, in technique scheme, described core post plug assembly comprises: stage clip, iron core and the one-way valve be installed in iron core; Described stage clip is installed on the one end near intake pipe in valve pocket, and stage clip acts on iron core.
Furthermore, in technique scheme, described limited post is fixed in valve pocket and intake pipe connecting part, and compression spring sleeve is located at outside limited post, and limited post is hollow body shape, on the sidewall of limited post, offer cell body.
Furthermore, in technique scheme, be also provided with a sleeve in described valve pocket, the front end of sleeve is inserted in outlet pipe, and the front end of iron core is inserted in sleeve.
Furthermore, in technique scheme, described sleeve offers osculum, outlet pipe inside is provided with the safety check acting on osculum place.
After adopting technique scheme, the utility model has following beneficial effect compared with prior art:
The utility model has installed a limited post in the inside of the pump housing, is limited the stroke of iron core by this limited post, reduces the decrement of spring simultaneously, makes spring can not occur elastic fatigue too early.Owing to limiting the displacement range of iron core (plunger), although decrease the flow of the pump housing, single validity simultaneously also improving flow, is applicable to the device needing exact flow rate.
Accompanying drawing illustrates:
Fig. 1 is sectional view of the present utility model;
Fig. 2 is plan view of the present utility model.
Embodiment:
Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.
See shown in Fig. 1-2, improve the minisize electromagnetic pump of flow accuracy, comprising: the pump housing 1, the core post plug assembly 2 being installed on the electromagnetic coil module 2 outside the pump housing 1 and being installed in the pump housing 1.
The described pump housing 1 comprises: the intake pipe 11 and the outlet pipe 12 that are arranged at the pump housing 1 two ends, and the pump housing 1 inside forms a valve pocket 10, and valve pocket 10 is communicated with core post plug assembly 2 with intake pipe 11 with outlet pipe 12 and is installed in valve pocket 10.
Described core post plug assembly 2 comprises: stage clip 21, iron core 22 and the one-way valve 23 be installed in iron core 22; Described stage clip 21 is installed on the one end near intake pipe 11 in valve pocket 10, and stage clip 21 one end is resisted against the inwall of valve pocket 10, and the other end is supported on iron core 22.The elastic force direction that stage clip 21 acts on iron core 22 is contrary with the electromagnetic field direction that electromagnetic coil module 6 acts on iron core 22, after iron core 22 carries out compressing stage clip 21, iron core 22 can utilize stage clip 21 to reset in time, thus realizes the reciprocal operation of iron core 22.
Between intake pipe 11 and core post plug assembly 2, a limited post 3 is provided with in described valve pocket 10, this limited post 3 limits the stroke of core post plug assembly 2 in valve pocket 10, limited post 3 is fixed in valve pocket 10 and intake pipe 11 connecting part, limited post 3, in hollow body shape, offers cell body 31 on the sidewall of limited post 3.Stage clip 21 is sheathed on outside limited post 3, when electromagnetic coil module 6 drives iron core 22 phase intake pipe 11 direction to move, after the distance of mobile one end, iron core 22 is due to the stop of limited post 3, and cannot continue to move to intake pipe 11 direction, the formation of iron core 22 is limited, and iron core 22 moves to outlet pipe 12 direction under the restoring force effect of stage clip 21.As can be seen here, limited the stroke of iron core 22 by limited post 3, thus accurately control the flow that pumps of electromagnetic pump.
Described iron core 22 inside forms the passage 220 installed for one-way valve 23, one-way valve 23 comprises: be installed on the extension spring 231 in passage and valve head 232, the left end of iron core 22 is fixed in extension spring 231 one end, the other end connects in valve head 232, valve head 232 blocks right-hand member port under the elastic force effect of extension spring 231, and after in valve pocket 10, hydraulic pressure reaches certain numerical value, water will promote valve head 232, make iron core 22 inner passage unimpeded, realize current and pump.One sleeve 4 is also installed in valve pocket 10, the front end of sleeve 4 is inserted in outlet pipe 12, the front end of iron core 22 is inserted in sleeve 4, sleeve 4 offers osculum 41, the safety check 5 acting on osculum 41 place is provided with in outlet pipe 12 inside, when valve pocket internal pressure is enough, the glue head of safety check 5 is rushed to open, and liquid flows out from outlet pipe 12.
The utility model can be used in the Exhaust gas purifying device of automobile, in the process of purifying vehicle exhaust, accurately catalyzer is pumped by the minisize electromagnetic pump improving flow accuracy, the harmful gas that vehicle exhaust is discharged is through harmless carbon dioxide, water and the nitrogen etc. of three-element catalytic transition bit, the iron core 22 of electromagnetic pump is driven by electromagnetic coil module 6 and moves to intake pipe 11, and move to limited post 3 inconsistent, in moving process, pressure increase on the left of iron core 22, valve head 232 is rushed to open, and flows in sleeve 4.When the magnetic force of electromagnetic coil module 6 interrupts, iron core 22 moves to right under the recovery effect of stage clip 21, and sleeve 4 internal pressure strengthens, the glue head of safety check 5 is rushed to open, catalyzer flows out from outlet pipe 12 smoothly, operates and so forth, ensures that the catalyzer of each high-precision flow in electromagnetic pump flows out.
Certainly, the foregoing is only specific embodiment of the utility model, be not limit the utility model practical range, all equivalences done according to structure, feature and principle described in the utility model claim change or modify, and all should be included in the utility model claim.
Claims (5)
1. improve the minisize electromagnetic pump of flow accuracy, comprise: a pump housing (1), the two ends of the pump housing (1) are provided with an intake pipe (11) and an outlet pipe (12), form a valve pocket (10) in the pump housing (1) inside, valve pocket (10) is communicated with outlet pipe (12) with intake pipe (11); In the pump housing (1) outside, electromagnetic coil module (6) is installed, core post plug assembly (2) is installed in valve pocket (10), it is characterized in that: in described valve pocket (10), between intake pipe (11) and core post plug assembly (2), be provided with a limited post (3), this limited post (3) restriction core post plug assembly (2) stroke in valve pocket (10).
2. the minisize electromagnetic pump of raising flow accuracy according to claim 1, is characterized in that: described core post plug assembly (2) comprising: stage clip (21), iron core (22) and the one-way valve (23) be installed in iron core (22); Described stage clip (21) is installed on the one end near intake pipe (11) in valve pocket (10), and stage clip (21) acts on iron core (22).
3. the minisize electromagnetic pump of raising flow accuracy according to claim 1, it is characterized in that: described limited post (3) is fixed on valve pocket (10) and intake pipe (11) connecting part, stage clip (21) is sheathed on limited post (3) outward, limited post (3), in hollow body shape, offers cell body (31) on the sidewall of limited post (3).
4. the minisize electromagnetic pump of raising flow accuracy according to claim 1, it is characterized in that: in described valve pocket (10), a sleeve (4) is also installed, the front end of sleeve (4) is inserted in outlet pipe (12), and the front end of iron core (22) is inserted in sleeve (4).
5. the minisize electromagnetic pump of raising flow accuracy according to claim 4, it is characterized in that: described sleeve (4) offers osculum (41), be provided with the safety check (5) acting on osculum (41) place in outlet pipe (12) inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520492992.4U CN204900183U (en) | 2015-07-09 | 2015-07-09 | Improve miniature electromagnetic pump of flow precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520492992.4U CN204900183U (en) | 2015-07-09 | 2015-07-09 | Improve miniature electromagnetic pump of flow precision |
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| Publication Number | Publication Date |
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| CN204900183U true CN204900183U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520492992.4U Active CN204900183U (en) | 2015-07-09 | 2015-07-09 | Improve miniature electromagnetic pump of flow precision |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569894A (en) * | 2016-01-15 | 2016-05-11 | 吴庆宇 | Electromagnetic oil supply fuel oil pump |
| WO2023078326A1 (en) * | 2021-11-05 | 2023-05-11 | 骏马精密工业(惠州)有限公司 | Electromagnetic pump having flow monitoring function |
-
2015
- 2015-07-09 CN CN201520492992.4U patent/CN204900183U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569894A (en) * | 2016-01-15 | 2016-05-11 | 吴庆宇 | Electromagnetic oil supply fuel oil pump |
| WO2023078326A1 (en) * | 2021-11-05 | 2023-05-11 | 骏马精密工业(惠州)有限公司 | Electromagnetic pump having flow monitoring function |
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