CN205503415U - Parallelly connected extension formula direct current diaphragm electromagnetic pump - Google Patents

Parallelly connected extension formula direct current diaphragm electromagnetic pump Download PDF

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Publication number
CN205503415U
CN205503415U CN201620323479.7U CN201620323479U CN205503415U CN 205503415 U CN205503415 U CN 205503415U CN 201620323479 U CN201620323479 U CN 201620323479U CN 205503415 U CN205503415 U CN 205503415U
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CN
China
Prior art keywords
flange
diaphragm
tube
solenoid
pump housing
Prior art date
Application number
CN201620323479.7U
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Chinese (zh)
Inventor
谷保祥
刘帅霞
王喜英
刘碧波
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河南工程学院
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Priority to CN201620323479.7U priority Critical patent/CN205503415U/en
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Publication of CN205503415U publication Critical patent/CN205503415U/en

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Abstract

The utility model relates to a parallelly connected extension formula direct current diaphragm electromagnetic pump, can effectively solve electromagnetic pump job stabilization, energy loss is few, the maintenance rate is low, long service life simultaneously can be according to the problem of condition of production proper motion multi -stage parallel connection extension, existing in a fixed tray, be provided with the diaphragm in the pump body, the diaphragm separates two compression space and the 2nd compression space that each other do not feed through that put with the inner chamber of the pump body, the diaphragm center is provided with the permanent magnet, the permanent magnet both sides are provided with outwardly directed first respiratory tube respectively, the second respiratory tube, the winding has a solenoid on the outer wall of first respiratory tube, it is connected with a compression space and is provided with the hall sensor corresponding with the permanent magnet on the inner wall at the oral area place of one end, the winding has the 2nd solenoid on the outer wall of second respiratory tube, it is connected with the 2nd compression space and is provided with two hall sensor corresponding with the permanent magnet on the inner wall at the oral area place of one end, the utility model discloses but automatically regulated fails outflow, and convenient to use is effectual.

Description

A kind of parallel expanded type DC diaphragm electromagnetic pump

Technical field

This utility model relates to electromagnetic pump, particularly a kind of parallel expanded type DC diaphragm electromagnetic pump.

Background technology

Electromagnetic diaphragmpump be the corrosivity for carrying in conventional liq, gas or chemical industry, dyeing, dangerous liquid dynamic Power pump, it is by solenoid generation magnetic field, utilizes electromagnetic force driving piston to move in the pump housing, thus produces motive force, Fluid is made to flow.Current membrane pump classification can be divided into the pneumatic diaphragm pump with compressed air as power, be with hydraulic oil medium The hydraulic diaphragm pump of power and the electric diaphragm pump with electric power as power.Wherein pneumatic diaphragm pump and hydraulic diaphragm pump need subsidiary sky The device such as air compressor and hydraulic pump, system complex and huge, define the space of installation and the scope of operation;Electric diaphragm pump Can be divided into the dosing pump of motor-driven membrane pump and solenoid actuated, motor-driven electric diaphragm pump structure is complicated, it is difficult to whole Cycle full width carries, and mechanical efficiency is low, and the membrane pump electric magnet of solenoid actuated replaces motor, directly exports rectilinear direction Power, simple in construction, size is little, is particularly well-suited to pump specialized fluids or for measuring fixed amount.But current electromagnetic diaphragmpump knot Needing armature or sliding axle on structure on the Magnet at pumping diaphragm center, the quality of armature is very big, considerably increases diaphragm and back and forth agitated The energy loss of journey, sliding axle needs to seal with its center slipper, adds diaphragm and back and forth agitate the frictional force of process, Too increase the risk of leakage, and prior art is all monoblock pump, it is impossible to pump requirement according to flow and pump housing list is increased or decreased Unit, therefore prior art is only useful for measuring the monomer electromagnetic pump of purposes, because the factors such as the pulsation of its flow low discharge is big have impact on it Range of application.Therefore, its improve and innovate imperative.

Utility model content

For above-mentioned situation, for overcoming the defect of prior art, it is straight that the purpose of this utility model is just to provide a kind of parallel expanded type Stream barrier film electromagnetic pump, can effectively solve electromagnetic pump working stability, energy loss is few, maintenance rate is low, length in service life simultaneously can root Problem according to the extension of condition of production plural parallel stage voluntarily.

The technical scheme that this utility model solves is, a kind of parallel expanded type DC diaphragm electromagnetic pump, including the pump housing and connecting tube, The pump housing is hollow structure, is provided with diaphragm in the pump housing, and diaphragm is by two mutual disconnected first pressures placed separately for the inner chamber of the pump housing Contracting space and the second compression stroke, diaphragm is provided centrally with permanent magnet, and permanent magnet both sides are in the first compression stroke, the second compression It is respectively arranged with outwardly directed first air tube, the second air tube on the pump housing at place, space, the outer wall of the first air tube twines It is wound with the first solenoid, the inwall at its oral area place connecting one end with the first compression stroke is provided with corresponding with permanent magnet The first Hall element, the other end is provided with the first flange for being connected with connecting tube, the outer wall of the second air tube twines It is wound with the second solenoid, the inwall at its oral area place connecting one end with the second compression stroke is provided with corresponding with permanent magnet The second Hall element, the other end is provided with the second flange for being connected with connecting tube, and connecting tube is in both ends open Hollow tube-like structure, the lateral symmetry of its stage casing part is provided with the first spiracle and second spiracle of two coaxial external-opens, and first Between spiracle and the second spiracle, on the internal axis of connecting tube, the position parallel with two spiracle cross sections is provided with dividing plate, every Plate length more than the diameter of two spiracles, has four for the flow direction that controls fluid between dividing plate two ends and connecting tube inwall Check valve, the oral area of the first spiracle is provided with for the first flange or the three-flange of the second Flange joint, second breathe It is provided with on the oral area in hole for the 4th flange with the first flange or the second Flange joint, the first spiracle or the second spiracle The oral area of oral area and the second air tube or the second air tube through corresponding flange in being tightly connected.

The first described Hall element and the second Hall element are connected with the input of controller respectively, the outfan of controller with 3 stationary contacts of dpdt relay are connected, and the first solenoid and the second solenoid connect close to the tap of pump housing side Together, altogether end is connected with one of them movable contact of dpdt relay, the first solenoid and the second solenoid away from The tap of pump housing side links together, and end is connected with another movable contact of dpdt relay altogether, and main power is connected to control The power input of device processed, constitutes automatic control structure.

This utility model novel structure is unique, advantages of simple, can increase and decrease pump housing unit according to applicable cases, can be according to application Demand simultaneously independent conveying different fluid, the conveying of each fluid is independent operation, and each unit is also independent operation, mutually it Between do not produce impact, it is possible to so that multiple fluid conveying while mix, it is possible to preferably export fluid, flow velocity Stably keep one's mouth shut, can be automatically adjusted output flow, idle running, application terminates to drain residual fluid in the pump housing, without rotate with Seal member, will not occur the pollution of convection cell, it is adaptable to the conveying of plurality of liquid, particularly chemical industry, oil, food production Etc. industry fluid, it is easy to operation, the life-span is long, easy to use, effective, is the innovation of conveying equipment for fluid substances, has good society Meeting and economic benefit.

Accompanying drawing explanation

Fig. 1 is the generalized section of this utility model pump housing.

Fig. 2 is the generalized section of this utility model connecting tube.

Fig. 3 is the use state diagram that this utility model monomer uses.

Fig. 4 is the use state diagram that this utility model parallel connection extension uses.

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.

Being given by Fig. 1-4, this utility model includes the pump housing and connecting tube, and the pump housing 1 is hollow structure, is provided with barrier film in the pump housing Sheet 2, diaphragm 2 by two mutual disconnected first compression strokes 21 and the second compression stroke 21a placed separately for the inner chamber of the pump housing, Diaphragm 2 is provided centrally with permanent magnet 3, and permanent magnet 3 both sides are at first compression stroke the 21, second compression stroke 21a place It is respectively arranged with outwardly directed first air tube the 6, second air tube 6a on the pump housing, the outer wall of the first air tube 6 is wound with First solenoid 4, the inwall at its oral area place connecting one end with the first compression stroke is provided with corresponding with permanent magnet 3 The first Hall element 5, the other end is provided with the first flange 7 for being connected with connecting tube, outside the second air tube 6a It is wound with the second solenoid 4a on wall, the inwall at its oral area place being connected one end with the second compression stroke is provided with and permanent magnetism The second Hall element 5a that body 3 is corresponding, the other end is provided with the second flange 7a for being connected, connecting tube with connecting tube For the hollow tubular structure of both ends open, the lateral symmetry of its stage casing part is provided with the first spiracle 12 He of two coaxial external-opens Second spiracle 12a, between the first spiracle 12 and the second spiracle 12a, cuts with two spiracles on the internal axis of connecting tube Parallel position, face is provided with dividing plate 20, and septum plate length, more than the diameter of two spiracles, has between dividing plate two ends and connecting tube inwall Four for controlling the check valves of flow direction of fluid, i.e. first go out to flow check valve 14, second go out to flow check valve 14a, first The check valve 15 and second that becomes a mandarin becomes a mandarin check valve 15a, makes the first spiracle of both sides and the second spiracle be not turned on mutually, and first exhales Be provided with on the oral area of sucker 12 for the first flange or the three-flange 13 of the second Flange joint, the second spiracle 12a It is provided with on oral area for the 4th flange 13a with the first flange or the second Flange joint, the first spiracle or the second spiracle The oral area of oral area and the second air tube or the second air tube through corresponding flange in being tightly connected.

For ensureing using effect, the first described Hall element 5 and the second Hall element 5a respectively with the input of controller 10 End is connected, and the outfan of controller 10 is connected with 3 stationary contacts of dpdt relay 9, the first solenoid and the second electricity Magnetic coil links together close to the tap of pump housing side, and end is connected with one of them movable contact of dpdt relay 9 altogether, First solenoid and the second solenoid link together away from the tap of pump housing side, altogether end and dpdt relay 9 Another movable contact is connected, and main power 11 is connected to the power input of controller 10, constitutes automatic control structure;

The 5th flange 19 that is separately provided in the suction inlet 18 of described connecting tube, outlet 16 being connected with external pipe, 6th flange 17;

The described pump housing is the hollow structure being just made up of being bolted together the truncated cone-shaped big opening end of two hollows, the big opening end of the two Outer wall on be provided with corresponding adpting flange 8, the two ends of diaphragm 2 are fixed between the contact surface of two adpting flanges;

The first described solenoid and the direction of winding of the second solenoid are consistent;As can be from each self-corresponding air tube and the pump housing Connected one end installs around before the clockwise direction of other end direction.

The described pump housing 1 inwall angle and diaphragm 2 are formed after the first air tube 6 or the second air tube 6a both sides are completely stretched Angle basically identical;

The described pump housing 1 material is avoided using permeability magnetic material, it is therefore an objective to do not make the first solenoid 4 and the second solenoid 4a produce Raw magnetic field is shielded, it is impossible to permanent magnet 3 is produced driving force;

The first described air tube 6 and the second air tube 6a materials'use increase magnetic material, to strengthen solenoid 4 and solenoid The magnetic field that 4a the produces driving force to permanent magnet 3;

The pole orientation of described permanent magnet 3 is on the axis of pitch of the pump housing 1, i.e. N, S the two poles of the earth face the first breathing respectively Pipe 6 and the second air tube 6a;

Described diaphragm is commercially available prod, the serial diaphragm of many pumps industry as blue in Xi'an;

The first described Hall element 5 and the second Hall element 5a is commercially available prod, and such as river, Shanghai, to please automated system limited The LJ4A series Hall element of company;

Described controller 10 is commercially available prod, and such as chip single-chip microcomputer such as 8501 controller, controller 10 can be reserved with several The pump housing unit extensions interface of amount, increases power supply and the control of pump housing unit, i.e. at electromagnetic pump list of the present utility model for user After unit's extension in parallel, controller still only one of which;

Described dpdt relay is commercially available prod, such as tianbo board PCB relay;

Service condition of the present utility model is:

One, monomer uses (as shown in Figure 3)

1. the three-flange 13 on connecting tube the first spiracle oral area is connected with the first flange 7 in the pump housing the first spiracle, Fix with bolt, block with blank flange at the 4th flange 13a on the second pneumostome, separately take a connecting tube, by connecting tube Three-flange 13 on first spiracle oral area is connected with the second flange 7a in the pump housing the second spiracle, fixes with bolt, the Blocking with blank flange at the 4th flange 13a on two pneumostomes, two connecting tube axis are parallel, and check valve opening direction phase With.The outlet 16 of two connecting tubes can be connected to an exit with Outer Tube as required, and the suction inlet of two connecting tubes also may be used To be connected to a porch with Outer Tube as required;

2. suction inlet is immersed in and treats, in drawing fluid, to open main power, the first solenoid 4 and the second solenoid 4a quilt Power supply, produces electromagnetic field, owing to two solenoid direction of windings are consistent, and connects same electrode close to the tap of the pump housing 1 side, Opposite side tap connects another electrode, so the electromagnetic field pole orientation that the first solenoid 4 and the second solenoid 4a produces On the contrary, the most no matter how the electrode of dpdt relay 9 switches, and the first solenoid 4 and and solenoid 4a are close The magnetic pole of the pump housing 1 side is the most identical.Assuming that tube side is breathed first in the N pole of permanent magnet 3, tube side is breathed second in S pole, When two solenoids are when the magnetic pole of the pump housing 1 side is N pole, and the first solenoid 4 is repulsion to the active force of permanent magnet 3, Second solenoid 4a is gravitation to the active force of permanent magnet 3, and then permanent magnet 3 is just to an end motion of the second air tube 6a, Diaphragm 2 is heaved to second air tube 6a one end under the drive of permanent magnet 3, produces the fluid of second air tube 6a one end Pressure, fluid enters the first pneumostome 12 of this end, and check valve 14 is opened, first check valve 15 that becomes a mandarin closes to promote first to go out to flow Closing, fluid is discharged from outlet 16, and meanwhile, diaphragm 2 forms negative pressure in the side of the first air tube, and fluid is breathed from first Pipe enters in the pump housing 1, makes in this side connecting tube first check valve 15 that becomes a mandarin open, and first goes out to flow check valve 14 closes, stream Body enters the pump housing 1 through the first pneumostome 12 from suction inlet 18;

3., when permanent magnet 3 is close to the second Hall element 5a, diaphragm 2 is close to fully deployed, and now the second Hall passes Sensor 5a measures the signal of permanent magnet 3, passes information to controller 10 by feeder line, and controller 10 is sent by feeder line and refers to Order is to dpdt relay 9, and dpdt relay 9 switches the first solenoid 4 and electrode of the second solenoid 4a, Then, the magnetic pole of two solenoids changes, and the second solenoid 4a produces repulsion to permanent magnet 3, the first solenoid 4 Permanent magnet 3 producing gravitation, drives the permanent magnet 3 end motion to the first air tube 6, diaphragm 2 is at the band of permanent magnet 3 Under Dong, the one end to the first air tube 6 is heaved, and the fluid of first air tube 6 one end is produced pressure, at the second air tube 6a mono- End produce negative pressure, be connected in the connecting tube of first air tube 6 one end first goes out to flow check valve 14 and opens, first become a mandarin unidirectional Valve 15 cuts out, and fluid is discharged from outlet 16, and be connected in the connecting tube of second air tube 6a one end first go out to flow unidirectional Valve 14 cuts out, and first check valve 15 that becomes a mandarin is opened, and fluid enters the pump housing 1 through sucking pneumostome 12 from suction inlet 18;

4. when permanent magnet 3 is close to the first Hall element 5, diaphragm 2 close to fully deployed, now the first hall sensing Device 5 measures the signal of permanent magnet 3, passes information to controller 10 by feeder line, and controller 10 sends instruction by feeder line To dpdt relay 9, dpdt relay 9 switches solenoid 4 and the electrode of solenoid 4a, so repeats, The work that electromagnetic pump is reciprocal.

When the information frequency that two Hall elements transmit to controller 10 is too low, it may be possible in pump, pressure is excessive, electromagnetic pump Conveying can be slack-off, now controller 10 can increase power supply input power, the first solenoid 4 and the second solenoid 4a pair The magnetic force of permanent magnet 3 strengthens, and the power that permanent magnet 3 drives diaphragm 2 to agitate increases, and improves the pressure to conveyance fluid, Thus improve the feed flow of convection cell.When the information frequency that two Hall elements transmit to controller 10 is too high, it may be possible to In pump, pressure is too small, and the conveying of electromagnetic pump can accelerate, and now controller 10 can reduce power supply input power, the first solenoid 4 Reducing the magnetic force of permanent magnet 3 with the second solenoid 4a, fluid conveying is exactly slack-off to get off.When two hall sensings The information frequency that device transmits to controller 10 continue the most too low, continue the most too high or when transmitting without information, it may be possible to line clogging or let out Dew, controller 10 cuts off electromagnetic pump power supply and sends alarm, and prompting staff carries out maintenance and inspection.

When the suction inlet of two connecting tubes is immersed in two kinds of different fluids respectively, electromagnetic pump can carry two kinds of fluids simultaneously, Two kinds of fluids will not occur mixing and two kinds of dose of fluid delivered identical in pump.

Two, extension in parallel uses (as shown in Figure 4)

1. the first flange 7 and the second flange 7a of every pump housing 1 connects the three-flange 13 or the 4th flange 13a of connecting tube, The three-flange 13 and the 4th flange 13a of every connecting tube connects the first flange 7 or the second flange 7a of the pump housing 1, forms one The structure that the pump housing 1 and connecting tube are alternately connected, parallel-connected pumps body unit quantity reaches user when requiring, the connecting tube of two ends least significant end Three-flange 13 and the 4th flange 13a respectively usage tritonope sheet closure, all connecting tube axis are parallel and all check valves is opened Direction is consistent, the power extension interface of the equal access controller of power supply 10 of the dpdt relay 9 of every electromagnetic pump, every electricity The control signal extension of the feeder line of the dpdt relay 9 of magnetic pumping and the feeder line access controller 10 of two Hall elements connects Mouthful.When conveyance fluid is one, with external pipe, outlet 16 end of every connecting tube can be connected to a total outlet, can The suction inlet 18 of every connecting tube is connected to a total suction inlet with external pipe, when carrying multiple fluid and do not mix mutually, even The outlet 16 of adapter not can connect to total outlet, suction inlet 18 not can connect to total suction inlet, conveying multiple fluid and Time the most admixed together, suction inlet 18 not can connect to total suction inlet, outlet 16 may be coupled to total outlet.

2. suction inlet is immersed in fluid to be conveyed (one or more), open main power, the work process of every pump and monomer Use process is just the same.

3. connecting tube has following several situation: (1) first pneumostome 12 and the second pneumostome 12a sucks simultaneously, then first Go out to flow check valve 14 and second and go out to flow that check valve 14a closes, first the check valve 15 and second check valve 15a that becomes a mandarin that becomes a mandarin opens, Fluid is entered connecting tube by suction inlet 18 and enters the pump housing 1 on both sides through the first pneumostome 12 and the second pneumostome 12a;(2) One pneumostome 12 and the second pneumostome 12a is discharged simultaneously, then discharge first goes out to flow check valve 14 and second and goes out to flow check valve 14a Open, first become a mandarin check valve 15 and second become a mandarin check valve 15a close, fluid is by the first pneumostome 12 and the second pneumostome 12a discharges and discharges from outlet 16 through connecting tube;(3) first pneumostomes 12 and the second suction side, pneumostome 12a side are discharged, Assuming that the first pneumostome 12 sucks, the second pneumostome 12a discharges, then first goes out to flow check valve 14 and close, first become a mandarin unidirectional Valve 15 is opened, and second goes out to flow check valve 14a opens, and the second check valve 15a that becomes a mandarin closes, and fluid enters even from suction inlet 18 Adapter enters the pump housing of the first flange 13 side through pneumostome 12, fluid is discharged from warp from the pump housing of the second flange 13a side Second pneumostome 12a discharges from outlet 16.

4. controller 10 can independently adjust power supply input power according to the signal frequency of each pump housing unit Hall element, permissible The pump housing unit power supply of independent trip possible breakdown also sends alarm, and possible breakdown pump housing unit is overhauled by instruction staff And do not affect other pump housing cell operation.

By above-mentioned it should be apparent that this utility model novel structure unique, advantages of simple, can increase and decrease according to applicable cases Pump housing unit, can be according to application demand the most independent conveying different fluid, and the conveying of each fluid is independent operation, each unit Also it is independent operation, does not the most produce impact, it is possible to so that multiple fluid mixes while conveying, it is possible to relatively Good output fluid, flow velocity is stably kept one's mouth shut, and can be automatically adjusted output flow, idle running, and application terminates to drain pump Residual fluid in body, without rotating and seal member, will not occur the pollution of convection cell, it is adaptable to the conveying of plurality of liquid, especially Being the industry fluids such as chemical industry, oil, food production, it is easy to operation, the life-span is long, easy to use, effective, is fluid conveying The innovation of equipment, has good Social and economic benef@.

Claims (5)

1. a parallel expanded type DC diaphragm electromagnetic pump, including the pump housing and connecting tube, it is characterised in that during the pump housing (1) is Hollow structure, is provided with diaphragm (2) in the pump housing, diaphragm (2) is by two mutual disconnected first pressures placed separately for the inner chamber of the pump housing Contracting space (21) and the second compression stroke (21a), diaphragm (2) is provided centrally with permanent magnet (3), permanent magnet (3) two Side the first compression stroke (21), the second compression stroke (21a) place the pump housing on be respectively arranged with outwardly directed first and exhale Suction pipe (6), the second air tube (6a), the outer wall of the first air tube (6) is wound with the first solenoid (4), and it is with the First Hall element (5) corresponding with permanent magnet (3) it is provided with on the inwall at the oral area place that one compression stroke connects one end, The other end is provided with the first flange (7) for being connected with connecting tube, and the outer wall of the second air tube (6a) is wound with second Solenoid (4a), the inwall at its oral area place connecting one end with the second compression stroke is provided with relative with permanent magnet (3) The second Hall element (5a) answered, the other end is provided with the second flange (7a) for being connected with connecting tube, and connecting tube is The hollow tubular structure of both ends open, the lateral symmetry of its stage casing part is provided with first spiracle (12) of two coaxial external-opens With the second spiracle (12a), between the first spiracle (12) and the second spiracle (12a), on the internal axis of connecting tube with Parallel position, two spiracle cross sections is provided with dividing plate (20), septum plate length more than the diameter of two spiracles, dividing plate two ends be connected There is the check valve of four flow directions for controlling fluid between inside pipe wall, the oral area of the first spiracle (12) is provided with use Be provided with on the three-flange (13) with the first flange or the second Flange joint, the oral area of the second spiracle (12a) for First flange or the 4th flange (13a) of the second Flange joint, the first spiracle or the oral area of the second spiracle and the second air tube Or second the oral area of air tube through corresponding flange in being tightly connected.
Parallel expanded type DC diaphragm electromagnetic pump the most according to claim 1, it is characterised in that the first described Hall passes Sensor (5) with the second Hall element (5a) respectively input with controller (10) be connected, the output of controller (10) End is connected with 3 stationary contacts of dpdt relay (9), and the first solenoid and the second solenoid are close to pump housing side Tap links together, and end is connected with one of them movable contact of dpdt relay (9) altogether, the first solenoid and second Solenoid links together away from the tap of pump housing side, and end is connected with another movable contact of dpdt relay (9) altogether, Main power (11) is connected to the power input of controller (10), constitutes automatic control structure.
Parallel expanded type DC diaphragm electromagnetic pump the most according to claim 1, it is characterised in that the suction of described connecting tube The 5th flange (19), the 6th flange (17) being connected with external pipe it is separately provided in entrance (18), outlet (16).
Parallel expanded type DC diaphragm electromagnetic pump the most according to claim 1, it is characterised in that the described pump housing is by two The truncated cone-shaped big opening end of hollow just to the hollow structure constituted that is bolted together, the outer wall of the big opening end of the two is provided with corresponding Adpting flange (8), the two ends of diaphragm (2) are fixed between the contact surface of two adpting flanges.
Parallel expanded type DC diaphragm electromagnetic pump the most according to claim 1, it is characterised in that the first described electromagnetic wire Enclose consistent with the direction of winding of the second solenoid.
CN201620323479.7U 2016-04-18 2016-04-18 Parallelly connected extension formula direct current diaphragm electromagnetic pump CN205503415U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620323479.7U CN205503415U (en) 2016-04-18 2016-04-18 Parallelly connected extension formula direct current diaphragm electromagnetic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620323479.7U CN205503415U (en) 2016-04-18 2016-04-18 Parallelly connected extension formula direct current diaphragm electromagnetic pump

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105697342A (en) * 2016-04-18 2016-06-22 河南工程学院 Parallel expanding type direct current diaphragm electromagnetic pump
CN108613471A (en) * 2016-12-09 2018-10-02 博西华电器(江苏)有限公司 Air extractor and refrigerator with air extractor
TWI652408B (en) 2017-09-15 2019-03-01 研能科技股份有限公司 Gas transmitting device
TWI683960B (en) * 2017-09-15 2020-02-01 研能科技股份有限公司 Gas transmitting device
TWI689665B (en) * 2017-09-15 2020-04-01 研能科技股份有限公司 Gas transmitting device
CN111479202A (en) * 2019-01-23 2020-07-31 捷音特科技股份有限公司 Moving-magnetic loudspeaker

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105697342A (en) * 2016-04-18 2016-06-22 河南工程学院 Parallel expanding type direct current diaphragm electromagnetic pump
CN105697342B (en) * 2016-04-18 2017-08-08 河南工程学院 Parallel expanded type DC diaphragm electromagnetic pump
CN108613471A (en) * 2016-12-09 2018-10-02 博西华电器(江苏)有限公司 Air extractor and refrigerator with air extractor
TWI652408B (en) 2017-09-15 2019-03-01 研能科技股份有限公司 Gas transmitting device
TWI683960B (en) * 2017-09-15 2020-02-01 研能科技股份有限公司 Gas transmitting device
TWI689665B (en) * 2017-09-15 2020-04-01 研能科技股份有限公司 Gas transmitting device
US10871155B2 (en) 2017-09-15 2020-12-22 Microjet Technology Co., Ltd. Gas transportation device
CN111479202A (en) * 2019-01-23 2020-07-31 捷音特科技股份有限公司 Moving-magnetic loudspeaker

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20160824

Termination date: 20170418