CN202718843U - Micro brushless direct current self-priming outer rotor multicavity pump - Google Patents
Micro brushless direct current self-priming outer rotor multicavity pump Download PDFInfo
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- CN202718843U CN202718843U CN 201220190423 CN201220190423U CN202718843U CN 202718843 U CN202718843 U CN 202718843U CN 201220190423 CN201220190423 CN 201220190423 CN 201220190423 U CN201220190423 U CN 201220190423U CN 202718843 U CN202718843 U CN 202718843U
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Abstract
The utility model relates to a micro brushless direct current self-priming outer rotor multicavity pump. At present, micro pumps can be classified in accordance with multiple functions and properties, such as diaphragm pumps, electromagnetic pumps, piston pumps, impeller pumps and the like, and some micro pumps have the disadvantages of larger integral resistance of motors, loud operating noise, unstable electromechanical performance and short service life. The utility model aims to develop the micro brushless direct current self-priming outer rotor multicavity pump which is composed of three parts, wherein a power driving device is a micro brushless direct current outer rotor motor (13); a pump body comprises a pump cover (1), a seal spacer (2), a valve bracket (3), a diaphragm fixing frame (4) and a pump bracket (7), wherein the pump bracket (7) is connected with a protective casing (14) of the motor; and a linkage piece comprises an eccentric sleeve (12), an eccentric shaft (6), a swing cap (5), a diaphragm (10), a water inlet valve and a water outlet valve. The micro brushless direct current self-priming outer rotor multicavity pump has the effects of good self-priming performance, large output pressure, no noise, high efficiency and large low-speed operating torque and rotary inertia. Additionally, the effects of electromechanical integration and pump body micromation are achieved.
Description
One, technical field
The utility model relates to the miniature self-priming brushless dc pump of a kind of fluid, refers in particular to a kind of Miniature brushless dc self-priming external rotor multi-cavity pump.
Two, background technique
The in the prior art function of micropump and property sort is a lot, and its working principle can be divided into: diaphragm pump, electromagnetic pump, reciprocating pump (reciprocating pump), wing pump (centrifugal pump) etc., its structure is comprised of work pump chamber and mechanical transmission two large divisions.Be divided into by purposes: Miniature negative pressure pump, minipump, miniature circulating pump, micro-suction pump, Miniature water-pumping pump, miniature immersible pump, miniature oxygen pump, booster pump, miniature bleeding inflated two-purpose pump, miniature mixing wastewater with air two-purpose pump etc.Micropump all possesses the pump mouth of one-in-and-one-out and the essential characteristic of drain opening (perhaps being called bleeding point and relief opening), and can continue to form vacuum or negative pressure in inlet; Form larger delivery pressure in the outlet port; Working medium is water or other liquids and gases.
The diaphragm pump of background technique is to be driven by variable-frequency motor, and its working principle is: in two symmetrical active chambers of pump a barrier film is housed respectively, by the center link rod it is connected to one.Pressurized air enters distributing valve from the suction port of pump, in case arrive the stroke end, another active chamber introduced pressurized air automatically by distribution device, promotes barrier film and moves in the opposite direction, thereby make two barrier film continuous synchronization ground to-and-fro motion, and medium is extruded discharge.
The electromagnetic pump of background technique is the interaction that utilizes electric current in magnetic field and the conductive fluid, makes fluid, gas be subjected to electromagnetic force and produce pressure gradient, thus propelling fluid, gas motion.The similar general solenoid valve of electromagnetic pump, it is take Ac as operation power, and electric current forms the alternation fixed magnetic field by the electromagnetism winding, forms interaction effect with movable medium, drives pump housing vibration, promotes the output of liquid or gas.
The reciprocating pump of background technique is again reciprocating pump, and structure is divided into single cylinder and multi-cylinder, and reciprocating pump is by reciprocating motion of the pistons, so that the pump chamber swept volume cycle changes, realizes suction and the discharge of pump.When piston moved upward, liquid or gas heading valve were opened, and liquid or gas enter pump chamber, and when piston moved downward, liquid or gas valve were closed, and motion is constantly discharged liquid or gas so repeatedly.
The working principle of the vane wheel type centrifugal pump of background technique is that (exchanging or direct current) motor driving impeller (blade) drive water rotation by High Rotation Speed throws away water, thereby reaches the purpose of carrying liquid.The multiplex direct current generator of micropump of making generally speaking, direct current generator can be divided into brush motor and brushless electric machine again, from mechanical angle relatively, large, its performance of brush motor rotating speed high, low speed torsion excellent performance, torque and advantage are that brushless electric machine is irreplaceable.But because the reasons in structure of brush motor, the contact resistance of brush and commutator is very large, cause the motor overall electrical resistance larger, easily heating, and permanent magnet is thermosensitive element, and the too high magnet steel of temperature will demagnetize, unsuitable continuously long time running, operating noise is large, electromechanical properties are unstable, and working life is short.
The brushless electric machine life-span is longer, and low, the maximum characteristics of maintenance cost do not produce electrical spark when being motor rotation, have reduced the interference of electrical spark to radio installation.And because brushless electric machine do not have brush, frictional force is little during running, move smooth and easyly, and noise is low, and the raising motor stabilizing has been played decisive role.But working pressure and the flow of the disadvantages affect micropump such as be used for to make that its motor speed of minisize dc pump is low, low speed torsion poor performance, torque are little cause at present slower development state in this respect.
The application number of looking on the net from State Intellectual Property Office: 200420089656.7, notice of authorization number: CN2795494Y patent " DC water pump " is a kind of micropump that typically utilizes brush motor to make; The unsuitable continuously long time running of this DC water pump, operating noise is large, can not self-priming, electromechanical properties are unstable, working life is short.Also looked into application number on the net from State Intellectual Property Office: 02277092.5, notice of authorization number: this DC water pump of CN5281733Y patent " DC water pump " is same to exist unsuitable continuously long time running, and operating noise is large, electromechanical properties are unstable, and working life is short.But different is can self-priming and draw water.
Brushless (or brush is arranged) minisize dc water pump that sale is arranged on the market in the background technique, with all be inner rotor motor, the inner rotor motor volume is relatively little, but cost is high, and torsion is little, low-speed running torsion poor performance, make minisize dc pump with it and affect working pressure, flow and performance.
Three, model utility content
The purpose of this utility model is to overcome the deficiency that above prior art exists, and develops a kind of Miniature brushless dc self-priming external rotor multi-cavity pump.The self-priming performance of realizing pump is good, delivery pressure large, noise free, efficient are high, good speed adjustment features, low-speed running torsion are large, rotator inertia large, good heat dissipation effect, reach simple in structure, volume microminiaturization, reduction energy consumption, energy-conserving and environment-protective, are convenient to installation and maintenance, reduce production costs, adapt to the purpose of industrialized production; Realize simultaneously the effect of electromechanical integration and pump housing microminiaturization.
To achieve these goals, technical solution of the present utility model is as follows: in order conveniently to understand technology contents, please be simultaneously referring to description of drawings, and number in the figure represents in bracket.
A kind of Miniature brushless dc self-priming external rotor multi-cavity pump, by the pump housing, driving power device and STATEMENT OF FEDERALLY SPONSORED three parts form, it is characterized in that: driving power device is the Miniature brushless dc external rotor electric machine (13) with the self-controlled type method of operation, the pump housing partly be by from top to bottom with advancing, go out the pump cover (1) of fluid flow port, gasket seal (2), valve support (3), barrier film fixing frame (4), pump support (7) and base-electric motor protecting shell (14) is connected to form whole stationary frame structure with screw (20), has on the valve support (3) into water through hole (18) and water outlet through hole (19); The STATEMENT OF FEDERALLY SPONSORED part-structure by be fixed on excentric sleeve (12) on motor (13) output shaft, tilt to be fixed on eccentric shaft (6) on the excentric sleeve (12), be socketed in swing cap (5) on the eccentric shaft (6), be formed with cylindrical pump chamber (15) with swing the barrier film (10) that cap (5) edge links to each other, inlet valve (9) and the outlet valve (8) that is connected on the valve support (3) forms; Barrier film (10) upper surface is fixed between valve support (3) and the barrier film fixing frame (4) and hanging is got off, barrier film (10) is provided with connection handle, described barrier film (10) by connection handle with swing cap (5) edge and link to each other, be evenly distributed on separately above the cylindrical pump chamber (15) and respectively independently the umbrella top of the corresponding umbrella shape inlet valve of UNICOM (9), water outlet through hole (19), through hole (18) the composition self-priming multi-cavity pump mechanism of intaking.
Technical solution of the present utility model also comprises:
Described a kind of Miniature brushless dc self-priming external rotor multi-cavity pump, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, annular groove is annular row water cavity (17) in above the valve support (3), socket rubber parts disc outlet valve (8) on the projection at its middle part, outlet valve (8) edge flap is pressed on the uniform water outlet through hole (19) and is in normally off, forms an annular row water cavity (17) space that fluid flows from bottom to top between valve support (3), outlet valve (8) and gasket seal (2); Be water-inlet cavity (16) at the peripheral sub-circular groove of valve support (3), upper lower through-hole evenly distributes in it, at this each through hole socket umbrella shape inlet valve moving up and down (9), can close and open and the corresponding contact cooperation with water inlet through hole (18) of equally distributed inlet valve (9) umbrella shape edge flap.
Described a kind of Miniature brushless dc self-priming external rotor multi-cavity pump, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, barrier film (10) is a whole rubber part of independence, its upper surface is junction surface, tenesmus evenly distributes independently deformablely and form the diaphragm of pump chamber (15) below this junction surface film, and each diaphragm bottom is equipped with to be passed umbrella shape and swing cap (5) and be socketed as a whole connection handle.
Described a kind of Miniature brushless dc self-priming external rotor multi-cavity pump, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, barrier film (10) is a whole rubber part of independence, its upper surface is junction surface, tenesmus evenly distributes independently deformable and form the diaphragm of pump chamber (15) below this junction surface film, each diaphragm bottom is equipped with umbrella shape and swings cap (5) the rim openings as a whole connection handle of mutually pegging graft, swing cap (5) edge uniform " U " shape opening in umbrella shape, its opening is young inner macrostructure.
A kind of Miniature brushless dc self-priming external rotor multi-cavity pump recited above is characterized in that: there is outer lug at the connection handle place of the diaphragm bottom of barrier film (10) tenesmus, and umbrella shape swing cap (5) edge passes socket or socket connection should projection.
Described a kind of Miniature brushless dc self-priming external rotor multi-cavity pump, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, the umbrella shape that does not turn but circle swing swings and is socketed on the eccentric shaft (6) below the cap (5), be fixed on below the eccentric shaft of rotating inclination (6) in the eccentric opening on the excentric sleeve (12), excentric sleeve (12) is fixed by socket on the output shaft of motor (13), get its eccentric distance e and be any one numerical value between 1 to 8mm, angle between eccentric shaft (6) center line and motor (13) the output shaft center line is inclined angle alpha, gets this inclined angle alpha and be any one numerical value between 5 ° to 20 °.
Described a kind of Miniature brushless dc self-priming external rotor multi-cavity pump, it is characterized in that: disc outlet valve (8) the edge flap thickness that makes water outlet through hole (19) be in normally off is any one numerical value between the 0.15-0.5mm, and preferred thickness is 0.2mm.
Described a kind of Miniature brushless dc self-priming external rotor multi-cavity pump is characterized in that: in pump housing part-structure, the limiting stopper (11) that plays position-limiting action is placed on below barrier film fixing frame (4) middle part, with the following corresponding contact of swing cap (5).
A kind of Miniature brushless dc self-priming external rotor multi-cavity pump recited above is characterized in that: the limiting stopper (11) with stage clip is placed in the lower recess of barrier film fixing frame (4) middle part, with the following corresponding contact of swing cap (5).
Advantage of the present utility model and effect:
1, the utility model is by reciprocating pump (reciprocating pump), the working principle of centrifugal pump (wing pump), different is arranges respectively two or more individual event stop valves (fingering goes out in pump chamber, water valve 9 and 8), driving eccentric cam (referring to excentric sleeve 12) high-speed plane by external rotor electric machine swings, the concavo-convex variation of extruding pump chamber diaphragm barrier film 10, the pump chamber swept volume is periodically changed, at individual event stop valve inlet valve 9, under the mating reaction of outlet valve 8, cut-off fluid (liquid, gas) flow, make the fluid (liquid that enters the pump chamber liquid container, gas) directed extruding is discharged, and realizes suction and the discharge of pump.Thereby reach the purpose of pump transporting operation.
The utility model is comprised of as driving main body and the pump housing outer rotor brushless DC motor, and its torsion and odds ratio inner rotor motor are large.Through at internet and State Patent Office's query site, have no the micropump and the related data that utilize outer rotor brushless DC motor to make.Because external rotor brushless DC motor is that radiating condition is better with self-controlled type operation, on rotor, add in addition the startup winding so can not resemble the synchronous machine of heavy load starting under the frequency control of motor speed, can when load changing, not produce yet and vibrate and step-out.The special adaptation in abominable air, the medium-term and long-term operation of liquid medium.
2, by buying, having external rotor electric machine made to order, can realize revising the external rotor electric machine electrical parameter, improve pump valve, optimize pump chamber, improve the service behaviour of external rotor brushless direct current multi-cavity pump and the induced pressure of pump.
3, the utility model compact structure is convenient to installation and maintenance, reduces production costs suitability for industrialized production.
4, it is supporting that the utility model purposes is applicable to the application of the products such as scientific research, chemical industry, chemical analysis, medical apparatus, machining, household electric appliance, automatically control, environmental protection, water treatment, space flight and aviation industry, auto manufacturing, instrument and apparatus, agricultural spray drip irrigation.
5, through repetition test and trial-production, the claimant adopts the outer rotor brushless DC motor of purchase to do power, using voltage DC 6-13.6V, rated current＜1A, peak output scope 6-12W, speed range 500-5000RPM/ divides, under the voltage rating 9V-12V condition, dispose respectively 5 pump chambers and 4 pump chambers, measure checkout is learnt: the rotating speed of outer rotor brushless DC motor is relevant with motor load, motor load is large, rotating speed is low, but work torsion is large, pendulum angle is large, act on that excentric sleeve (also claiming eccentric cam) 12 is rear to form larger compression ratio to compressible rubber pump chamber, thereby show the excellent service behaviour of pump, it is large namely to inhale journey, output flow is large, pressure is strong, the features such as noiseless (less than 35db).And can continue to form vacuum or negative pressure in inlet; Form larger delivery pressure in the outlet port, working medium is fluid---the mixing of water or gas or liquids and gases.
5.1 in five pump chamber test experiments, the employing eccentric distance e is 3mm, 4mm, working effect is better; The relevant data of its product is as follows:
Pump housing microminiaturization and electromechanical integration: (contain motor and pump chamber) about diameter 40x40x100mm.Power: 4W.
Direct current: driving voltage 9-12V.
Self-priming: negative pressure function is arranged, and the suction journey is 1.5m, negative pressure: 0-25KPa, malleation: 0-20KPa.
Lift: maximum 6m.
Flow: 1.2L/min.
Outer rotor brushless DC motor: with the self-controlled type operation, radiating condition is better, and the synchronous working performance of heavy load starting is good, can not produce vibration and step-out when load changing.Do not have the carbon brush friction between stator and rotor, the life-span is long.
Multicarity is characterized as: five pump chambers that work independently that arrange respectively in the pump housing, each independent pump chamber volume diameter is: Φ 10mm, height 5mm, volume 392.5mm
3When driven by motor excentric sleeve (also claiming eccentric cam) 12 High Rotation Speed, by a plurality of pump chambers of excentric sleeve 12 continuous swinging extrusions, the opening and closing of circulation forms stable suction and discharge successively; From testing: pump chamber is more, and the fluid machinery performance is better, and working stability is reliable.Revise the pump chamber parameter, reduce or increase the variation of each pump chamber, can in the situation of identical electrical parameter, reduce pressure, improve flow, also can increase pressure, reduce flow; According to Environmental Conditions and condition, for the client makes applicable external rotor brushless straightway pump to measure.
5.2 in the test of four pump chambers, its product test and relevant parameter are as follows:
Pump chamber volume overall dimensions: about 45x45x100mm, (containing motor and pump chamber).Along with the increase of power, this external rotor brushless straightway pump volume also can appropriateness increase.
Measure checkout is learnt liquid when each independent pump chamber diameter is Φ 13.8mm, height 5.5mm, volume 822.2mm3: power: 7-10W, suction journey: 3000mm, lift: maximum 10m, flow: 0.8-2.8L/min; Gas: power 7-10W, negative pressure: 0-35KPa, malleation: 0-30KPa; Noise is less than 35db.
Driving DC voltage is: DC9-12V.Can self-priming and draw water, negative pressure function is arranged, have air water medium two-purpose pump feature.Self-priming performance is good, delivery pressure is large, noise free, efficient high, and good speed adjustment features, low-speed running torsion is large, rotator inertia large, good heat dissipation effect, the microminiaturization of the realization pump housing and electromechanical integration.
In sum, miniature self-priming external rotor brushless direct current multi-cavity pump described in the utility model has that simple in structure, fast response time, volume are little, lightweight, noise free, pressure greatly, do not rush down pressure, pollution-free, the non-return characteristics such as effective, easy to install.
Four, description of drawings
Fig. 1 is the backsight surface structure schematic representation of Fig. 2; Fig. 2 is whole sectional structure schematic representation; Fig. 3 is the decomposing schematic representation of Fig. 2; Fig. 4 is A-A broken section structural representation among Fig. 2.
Above-mentioned drawing reference numeral explanation: 1. pump cover, 2. gasket seal, 3. valve support; 4. the barrier film fixing frame 5. swings cap, 6. eccentric shaft; 7. pump support, 8. outlet valve, 9. inlet valve; 10. barrier film, 11. limiting stoppers, 12. excentric sleeves (also claiming eccentric cam); 13. motor, 14. electric motor protecting shells, 15. pump chambers; 16. water-inlet cavity, 17. drain chamber.The e-throw of eccentric, α-pendulum angle or tilt angle, 18. water inlet through holes, 19. water outlet through holes, 20. screws.The e-throw of eccentric, α-pendulum angle.
Five, embodiment
Referring to Fig. 1-Fig. 4, the utility model is comprised of the pump housing, driving power and three parts that link.The pump housing partly be by from top to bottom pump cover 1, gasket seal 2, valve support 3, barrier film fixing frame 4,, pump support 7 and base-electric motor protecting shell 14 usefulness screws 20 links are connected to form whole stationary frame structure.Drive power section by buy on the market (or according to user's requirement customized be external rotor brushless DC motor) the Miniature brushless dc external rotor electric machine 13 with the self-controlled type method of operation forms, motor 13 is positioned at the following of pump support 7 to be fixed at bottom motors protecting sheathing 14.STATEMENT OF FEDERALLY SPONSORED partly is by the eccentric shaft 6 that is fixed on constant tilt on excentric sleeve 12 on motor 13 output shafts, the excentric sleeve 12, is having the swing cap 5, the barrier film 10 that are connected to be fixed between valve support 3 and the barrier film fixing frame 4 on the surface on the whole between the barrier film 10 of eccentric shaft 6 and hanging, and these barrier film 10 hangings below barrier film fixing frame 4, valve support 3 inlet valve 9 and the outlet valve 8 that connect form.Five individual event stop valve groups are set respectively in the pump housing, and each group is comprised of inlet valve 9, outlet valve 8.In above-mentioned pump housing part-structure, limiting stopper 11 (can not want by limiting stopper 11, in test also be normal operation) be fixed on barrier film fixing frame 4 middle parts, correspondingly with following swing cap 5 contacted the effect (referring to Fig. 2 and Fig. 4) that limits its position deviation; Between pump cover 1 and valve support 3 gasket seal 2 is housed, water inlet and water outlet are separated fully, it is water outlet that there are water intake, the left side in the right above the pump cover 1, sees the flow direction shown in Fig. 2 arrow.
Specifically: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, there is projection at the middle part in the groove above the valve support, socket disc outlet valve 8 (referring to Fig. 2 and Fig. 3) on this projection, disc outlet valve 8 is rubber parts, the thick middle thin edge, middle fixing, five independently uniform water outlet through holes 19 below the edge, outlet valve 8 edges as flap can be opened under fluid pressure action, when pump chamber-drain chamber 17 during without positive pressure, rely on the rubber elasticity performance to make water outlet through hole 19 be in normally off, can close in outlet valve 8 edges of unlatching five water outlet through holes, the 19 corresponding contacts cooperations in five flaps and valve support 3 grooves, can be 5 flaps that whole individual event stop valve-outlet valve 8 edges are divided into the picture plum blossom-shaped, the rubber thickness that connects in the position that groove-water outlet through hole 19 is arranged is 0.2mm only, also just say that the disc outlet valve 8 edge flap thickness that make water outlet through hole 19 be in normally off are 0.15-0.5mm, such as 0.16,0.17,0.18,0.19,0.20,0.21,0.22,0.24,0.25,0.28,0.29,0.30,0.31,0.32,0.35,0.37,0.38,0.40,0.41,0.43,0.45,0.47,0.49,0.50 Deng numerical value, learn that in test preferred thickness is 0.2mm.Because its flap is just in time in the neutral position of each water outlet through hole 19, under fluid pressure action, this position rubber flap is easily deformable, this position is opened and other positions are still closed, fluid flows from bottom to top and forms annular row water cavity 17 spaces between valve support 3, outlet valve 8 and gasket seal 2.From the planar diameter direction of Fig. 2, the water inlet outside through draining at interior warp.Falling to be socketed up and down umbrella shape or be called the inlet valve 9 of mushroom-like at valve support 3 peripheral groove inner via holes, equally distributed five inlet valves 9 and five outlet valve 8 correspondences, and uniformly be plane ring shaped distribution, the inlet valve 9 umbrella shape flaps that can close unlatching cooperate with the 18 corresponding contacts of valve support water inlet through hole, the sub-circular groove is water-inlet cavity 16 above the valve support 3, barrier film 10 is an one-piece parts, its upper surface is junction surface, five deformable goblet shape diaphragms of tenesmus below this junction surface film, the space is pump chamber 15 in the cup-shaped wafer cup that five rings are evenly distributed, it is as a whole that the connection handle of cup-shaped diaphragm bottom passes 5 sockets of umbrella shape swing cap, there is outer lug at the connection handle place, umbrella shape swings cap 5 edges and passes projection and be positioned at connection handle place below the barrier film 10, projection plays difficult drop-off, the stable effect that connects, certainly need not pass with the socket connection mode and also can, distinguish separately the independently umbrella top of five umbrella shape inlet valves 9 of corresponding five umbrellas of UNICOM above five cylindrical pump chambers 15 that are evenly distributed, five water outlet through holes 19, five water inlet through holes 18 form self-priming multi-cavity pump mechanism, and following swing cap 5, eccentric shaft 6, excentric sleeve 12 jointly forms the STATEMENT OF FEDERALLY SPONSORED part or is called STATEMENT OF FEDERALLY SPONSORED mechanism.The umbrella shape of circle swing (but do not rotate) swings and is socketed on the eccentric shaft 6 below the cap 5, is fixed on below the eccentric shaft 6 of rotating inclination in the eccentric opening on the excentric sleeve 12, and excentric sleeve 12 is fixed by socket on the output shaft of motor 13; What note here is that eccentric distance e is the random natural number value between 1 to 8mm, and the claimant adopts respectively that eccentric distance e is 1,2,3,4,5,6,7,8mm does experiment, when tentatively determining the 3mm throw of eccentric, is having under five pump chamber 15 states working effect better; 4mm throw of eccentric working effect under four pump chamber 15 states is better; In like manner the angle between eccentric shaft 6 center lines and the motor 13 output shaft center lines is inclined angle alpha, is any number experiment between 5 ° to 20 ° to this inclined angle alpha, and when determining that tentatively inclined angle alpha is 15 °, working effect is better under five pump chamber 15 states.When inclined angle alpha was 18 °, working effect was better under four pump chamber 15 states.After connecting direct current, rotates by motor 13, by eccentric shaft 6 and swing cap 5, barrier film 10 is produced to stretch and compressive strain, from figure: because inclined angle alpha, the beveled structure of eccentric distance e and swing cap 5, cause the diaphragm of pump chamber 15 peripheries in a little altitude range, to be subject to planar distortion so that swing the opposite planar swing of cap 5, stretch, extrusion-deformation is (just as a direction massage of the human hand that is seated leg knee, but do not rotate), space generation size variation to a certain degree to pump chamber 15, thereby in pump chamber 15 interior formation malleation and negative pressure, the increase of pump chamber 15 volumes and dwindle and fluid sucked and discharge pump chamber 15, it is that motor 13 is when forwarding a certain position to that five pump chambers 15 are worked successively, the diaphragm of part pump chamber 15 is stretched, the diaphragm of another part pump chamber 15 is compressed, thereby make some pump chamber 15 suctions, some pump chamber 15 drainings, thus constantly water is sucked and discharge pump chamber 15, see shown in Fig. 2 arrow.
Need to prove:
1, the inclined angle alpha of swing cap 5 can have influence on output flow and the motor load size of pump, the general output flow that reaches is as requested selected inclined angle alpha, inclined angle alpha is larger, cylindrical pump chamber 15 volume-variation amounts are larger, require the output torque of motor 13 larger, the boundary dimension of motor 13 is also larger.
2, embodiment adopts five pump chambers 15 that work alone that are evenly distributed barrier film 10 that forms a whole, corresponding five inlet valves 9, five outlet valves 8, the simultaneously also water-inlet cavity 16 of corresponding five mutual UNICOMs and the drain chamber 17 of five mutual UNICOMs consist of the whole miniature self-priming multi-cavity pump of a complete mutual co-ordination.Do not limit to so top 5, the pump chamber 15 of the random natural number in adopting 3 to 10 all can be realized the purpose of this utility model, and just volume increases along with the increase of pump chamber quantity, and power also is to increase along with the increase of pump chamber quantity.
3, critical component brushless direct-current external rotor electric machine 13 of the present utility model can be next customized according to the product of different model in market producer.
4, barrier film 10 is an independently one-piece parts, its upper surface is junction surface, five deformable goblet shape diaphragms of tenesmus below this junction surface film, the space is pump chamber 15 in the cup, it is as a whole that the connection handle of cup-shaped diaphragm bottom passes the 5 edges socket of umbrella shape swing cap, there is outer lug at the connection handle place, umbrella shape swings cap 5 edges and passes projection, also can be used as substitute or equivalent product with inserting mode, namely swing uniform five openings in cap 5 edges in umbrella shape, be " U " shape, opening is young the inside macrostructure, because the connection handle of cup-shaped diaphragm bottom all is compressible distortion, so the extruding grafting gets final product when assembling.
5, can not want about the limiting stopper 11 in the pump housing part-structure, can work in test yet, be fixed in the barrier film fixing frame 4 following central slot, with the following corresponding contact in swing cap 5 tops, play the effect that limits its position deviation; So unexpected this limiting stopper 11 that increases occurs in order to prevent from working under various rugged environment, it is good to install a stage clip additional on limiting stopper 11 tops so, gives all the time 5 one the slight power of cap that swing.
Claims (9)
1. Miniature brushless dc self-priming external rotor multi-cavity pump, by the pump housing, driving power device and STATEMENT OF FEDERALLY SPONSORED three parts form, it is characterized in that: driving power device is the Miniature brushless dc external rotor electric machine (13) with the self-controlled type method of operation, the pump housing partly be by from top to bottom with advancing, go out the pump cover (1) of fluid flow port, gasket seal (2), valve support (3), barrier film fixing frame (4), pump support (7) and base-electric motor protecting shell (14) is connected to form whole stationary frame structure with screw (20), has on the valve support (3) into water through hole (18) and water outlet through hole (19); The STATEMENT OF FEDERALLY SPONSORED part-structure by be fixed on excentric sleeve (12) on motor (13) output shaft, tilt to be fixed on eccentric shaft (6) on the excentric sleeve (12), be socketed in swing cap (5) on the eccentric shaft (6), be formed with cylindrical pump chamber (15) with swing the barrier film (10) that cap (5) edge links to each other, inlet valve (9) and the outlet valve (8) that is connected on the valve support (3) forms; Barrier film (10) upper surface is fixed between valve support (3) and the barrier film fixing frame (4) and hanging is got off, barrier film (10) is provided with connection handle, described barrier film (10) by connection handle with swing cap (5) edge and link to each other, be evenly distributed on separately above the cylindrical pump chamber (15) and respectively independently the umbrella top of the corresponding umbrella shape inlet valve of UNICOM (9), water outlet through hole (19), through hole (18) the composition self-priming multi-cavity pump mechanism of intaking.
2. a kind of Miniature brushless dc self-priming external rotor multi-cavity pump according to claim 1, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, annular groove is annular row water cavity (17) in above the valve support (3), socket rubber parts disc outlet valve (8) on the projection at its middle part, outlet valve (8) edge flap is pressed on the uniform water outlet through hole (19) and is in normally off, in valve support (3), form an annular row water cavity (17) space that fluid flows from bottom to top between outlet valve (8) and the gasket seal (2); Be water-inlet cavity (16) at the peripheral sub-circular groove of valve support (3), upper lower through-hole evenly distributes in it, at this each through hole socket umbrella shape inlet valve moving up and down (9), can close and open and the corresponding contact cooperation with water inlet through hole (18) of equally distributed inlet valve (9) umbrella shape edge flap.
3. a kind of Miniature brushless dc self-priming external rotor multi-cavity pump according to claim 1, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, barrier film (10) is a whole rubber part of independence, its upper surface is junction surface, tenesmus evenly distributes independently deformablely and form the diaphragm of pump chamber (15) below this junction surface film, and each diaphragm bottom is equipped with to be passed umbrella shape and swing cap (5) and be socketed as a whole connection handle.
4. a kind of Miniature brushless dc self-priming external rotor multi-cavity pump according to claim 1, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, barrier film (10) is a whole rubber part of independence, its upper surface is junction surface, tenesmus evenly distributes independently deformable and form the diaphragm of pump chamber (15) below this junction surface film, each diaphragm bottom is equipped with umbrella shape and swings cap (5) the rim openings as a whole connection handle of mutually pegging graft, swing cap (5) edge uniform " U " shape opening in umbrella shape, its opening is young inner macrostructure.
5. according to claim 3 or 4 described a kind of Miniature brushless dc self-priming external rotor multi-cavity pumps, it is characterized in that: there is outer lug at the connection handle place of the diaphragm bottom of barrier film (10) tenesmus, and umbrella shape swing cap (5) edge passes socket or socket connection should projection.
6. a kind of Miniature brushless dc self-priming external rotor multi-cavity pump according to claim 1, it is characterized in that: in above-mentioned STATEMENT OF FEDERALLY SPONSORED part-structure, the umbrella shape that does not turn but circle swing swings and is socketed on the eccentric shaft (6) below the cap (5), be fixed on below the eccentric shaft of rotating inclination (6) in the eccentric opening on the excentric sleeve (12), excentric sleeve (12) is fixed by socket on the output shaft of motor (13), get its eccentric distance e and be any one numerical value between 1 to 8mm, angle between eccentric shaft (6) center line and motor (13) the output shaft center line is inclined angle alpha, gets this inclined angle alpha and be any one numerical value between 5 ° to 20 °.
7. a kind of Miniature brushless dc self-priming external rotor multi-cavity pump according to claim 1, it is characterized in that: disc outlet valve (8) the edge flap thickness that makes water outlet through hole (19) be in normally off is any one numerical value between 0.15-0.5mm.
8. a kind of Miniature brushless dc self-priming external rotor multi-cavity pump according to claim 1, it is characterized in that: in pump housing part-structure, the limiting stopper (11) that plays position-limiting action is placed on below barrier film fixing frame (4) middle part, with the following corresponding contact of swing cap (5).
9. a kind of Miniature brushless dc self-priming external rotor multi-cavity pump according to claim 8 is characterized in that: the limiting stopper (11) with stage clip is placed in the lower recess of barrier film fixing frame (4) middle part, with the following corresponding contact of swing cap (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220190423 CN202718843U (en) | 2012-04-28 | 2012-04-28 | Micro brushless direct current self-priming outer rotor multicavity pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220190423 CN202718843U (en) | 2012-04-28 | 2012-04-28 | Micro brushless direct current self-priming outer rotor multicavity pump |
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| CN202718843U true CN202718843U (en) | 2013-02-06 |
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| CN 201220190423 Expired - Fee Related CN202718843U (en) | 2012-04-28 | 2012-04-28 | Micro brushless direct current self-priming outer rotor multicavity pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102635538A (en) * | 2012-04-28 | 2012-08-15 | 胡军 | Small-sized brushless direct current self-absorption multi-cavity pump provided with outer rotor |
| CN106277410A (en) * | 2016-09-30 | 2017-01-04 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
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| CN107795464A (en) * | 2016-09-05 | 2018-03-13 | 厦门科际精密器材有限公司 | The piston of pumping and pumping |
| CN109139439A (en) * | 2018-10-24 | 2019-01-04 | 任修勇 | A kind of fluid diaphragm pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102635538A (en) * | 2012-04-28 | 2012-08-15 | 胡军 | Small-sized brushless direct current self-absorption multi-cavity pump provided with outer rotor |
| CN107795464A (en) * | 2016-09-05 | 2018-03-13 | 厦门科际精密器材有限公司 | The piston of pumping and pumping |
| CN106277410A (en) * | 2016-09-30 | 2017-01-04 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier |
| CN106382219A (en) * | 2016-10-14 | 2017-02-08 | 厦门科际精密器材有限公司 | Pump interior valve block with multi-split valve parts |
| CN107394987A (en) * | 2017-09-14 | 2017-11-24 | 东莞市神州视觉科技有限公司 | Electric rotating magnetic pumping |
| KR20190035605A (en) * | 2017-09-14 | 2019-04-03 | 에이리더 비전 테크놀로지 코포레이션 리미티드 | Electromagnetic pumps |
| CN107394987B (en) * | 2017-09-14 | 2019-09-20 | 东莞市神州视觉科技有限公司 | Electric rotating magnetic pumping |
| JP2019535220A (en) * | 2017-09-14 | 2019-12-05 | 東莞市神州視覚科技有限公司 | Electromagnetic pump |
| KR102157831B1 (en) | 2017-09-14 | 2020-09-18 | 에이리더 비전 테크놀로지 코포레이션 리미티드 | Electromagnetic pump |
| US11223267B2 (en) | 2017-09-14 | 2022-01-11 | Aleader Vision Technology Co., Ltd | Electromagnetic pump |
| CN109139439A (en) * | 2018-10-24 | 2019-01-04 | 任修勇 | A kind of fluid diaphragm pump |
| CN109441786A (en) * | 2018-12-24 | 2019-03-08 | 佛山科学技术学院 | A kind of hand-rail type water pump |
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Free format text: FORMER OWNER: YANG ZHUJUN Effective date: 20150709 Owner name: SHENZHEN HEYI PRECISION PUMP TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HU JUN Effective date: 20150709 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150709 Address after: 518172 Guangdong Province, Shenzhen city Longgang District Center City Lin Xi Lu City Industrial Park No. three building four story North (subfamily company) Patentee after: SHENZHEN HEYI PRECISION PUMP TECHNOLOGY CO., LTD. Address before: Lin Xi Lu City Industrial Park in Longgang District of Shenzhen City, Guangdong province 518172 three four storey factory building (subfamily company) Patentee before: Hu Jun Patentee before: Yang Zhujun |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20200428 |