CN217976487U - Direct current electromagnetic pump assembly and direct current electromagnetic pump - Google Patents

Abstract

The application relates to a direct current electromagnetic pump assembly and a direct current electromagnetic pump, wherein a coil base and an installation frame are fixed on a magnetizer, the installation frame is arranged outside the coil base in a surrounding manner, a liquid inlet pipe penetrates through the coil base and the magnetizer, a pump core is arranged in the liquid inlet pipe, and the pump core is arranged to pump liquid entering the liquid inlet pipe out of a pump head through a pump body under the action of a circuit board and a coil; the magnetizer comprises at least two assembling parts, and the magnetizer is formed by combining the assembling parts. Direct current can be used as an input power supply, low-voltage direct current control of a lithium battery can be realized, and a circuit board is matched to simulate the on-off time of alternating current to control the work of a direct current electromagnetic pump, so that the direct current electromagnetic pump can normally work to pump liquid under direct current; for the pump, the internal pressure and the flow of the pump are more stable and balanced, and the structure is more reasonable and practical.

Description

Direct current electromagnetic pump assembly and direct current electromagnetic pump

Technical Field

The application relates to the field of electromagnetic pumps, in particular to a direct-current electromagnetic pump assembly and a direct-current electromagnetic pump.

Background

The wireless complete machine uses a lithium battery to control the pump to work, and the input is controlled by direct current. However, the miniature electromagnetic vibration pumps in the current market are all controlled by alternating current, and the control requirements of a wireless complete machine are difficult to meet.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing, it is desirable to provide a dc electromagnetic pump assembly and a dc electromagnetic pump.

A direct current electromagnetic pump assembly comprises a pump head, a pump body, a pump core, a liquid inlet pipe, a mounting frame, a magnetizer and a coil base; the pump head is fixed on the pump body, and the pump body is fixed on the magnetizer; the coil holder and the mounting frame are fixed on the magnetizer, the mounting frame is arranged outside the coil holder in an enclosing manner, the coil holder is used for installing a coil, and the mounting frame is used for installing a circuit board connected with the coil; the liquid inlet pipe penetrates through the coil base and the magnetizer and is connected with the pump body, the pump core is arranged in the liquid inlet pipe, and the pump core is used for pumping liquid entering from the liquid inlet pipe out of the pump head through the pump body under the action of the circuit board and the coil; the magnetizer comprises at least two assembling parts, and the magnetizer is formed by assembling the assembling parts.

The direct current electromagnetic pump component is easy to assemble magnetizers, can adopt direct current as an input power supply, can realize low-voltage direct current control of the lithium battery, and controls the direct current electromagnetic pump to work by matching with a circuit board to simulate the on-off time of alternating current, so that the direct current electromagnetic pump can normally work to pump liquid under direct current; for the pump, the internal pressure and the flow of the pump are more stable and balanced, and the structure is more reasonable and practical.

In one embodiment, the number of the assembling portions is two, namely a first assembling portion and a second assembling portion, wherein the first assembling portion is arranged adjacent to the pump head, and the second assembling portion is arranged adjacent to the liquid inlet pipe.

In one embodiment, one end of the first assembly portion and one end of the second assembly portion are integrally arranged, and the other ends are detachably combined.

In one embodiment, the first assembly portion and the second assembly portion are spliced with each other.

In one embodiment, the first assembly portion and the second assembly portion are at least partially arranged in a matching mode.

In one embodiment, the first assembly portion and the second assembly portion are clamped with each other.

In one embodiment, the first assembly portion and the second assembly portion are screwed.

In one embodiment, the pump head is integral with the pump body.

In one embodiment, the pump head is provided with a liquid outlet, a check spring and a first check head, and the pump head is also provided with a liquid outlet cavity; the liquid outlet is provided with a liquid outlet channel communicated with the liquid outlet cavity;

the check spring is connected with the first check head, and the check spring and the first check head are both arranged in the liquid outlet cavity;

the first check head is abutted against the liquid outlet end of the pump body under the action of the elastic force of the check spring, so that the liquid outlet end and the first check head are relatively closed;

the pump core is provided with an inner cavity communicated with the liquid inlet pipe and the liquid outlet cavity, and a spring and a second check head in the pump core are arranged in the inner cavity;

the inner cavity comprises a liquid inlet area and a liquid pumping area, the liquid inlet area is communicated with a liquid inlet cavity of the liquid inlet pipe, and the liquid pumping area is communicated with the liquid outlet cavity through the liquid outlet end;

the fixed end of a spring in the pump core is abutted against the pump core, the other end of the spring in the pump core is connected with the second check head, and the spring in the pump core is set to have a closed state and an open state under the reciprocating motion state of the pump core; when the pump core is far away from the pump head, the opening state acts on the second check head to enable the pump liquid area to be communicated with the pump liquid channel of the pump body, and meanwhile, the first check head abuts against and seals the liquid outlet end of the pump body under the elastic force action of the check spring; the closed state is that when the pump core is close to the pump head, the second check head acts on the pump liquid area and the pump liquid channel to be closed, and meanwhile, the elastic force of the check spring is overcome to enable the first check head to be separated from the liquid outlet end of the pump body;

a pump core seat and a pump core lower spring are arranged in the pump body;

the pump core seat is adjacent to the pump head or inserted into the liquid outlet cavity, the pump core seat is provided with a pump liquid channel and a liquid outlet end thereof, the liquid outlet end is communicated with the liquid outlet cavity, and the pump liquid channel is also communicated with the inner cavity of the pump core;

a pump core gasket is further arranged in the pump body and arranged between the convex part of the pump core and the fixed end of the liquid inlet pipe so that the convex part and the fixed end are connected in a sealing manner through the pump core gasket, and one end, far away from the pump head, of the pump core seat is abutted to the pump core gasket;

one end of the pump core lower spring is abutted against the pump core gasket and is abutted against the pump core seat through the pump core gasket; the other end of the pump core lower spring is connected with a shoulder position of the pump core, so that the pump core is far away from the pump core seat under the action of the elastic force of the pump core lower spring;

a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring are further arranged in the pump body; the pump core seat is hermetically connected with the inner wall of the pump head or the inner wall of the pump body through the first sealing ring, the fixed end of the liquid inlet pipe is hermetically connected with the inner wall of the pump body through the second sealing ring, the pump core seat is hermetically connected with the convex part through the third sealing ring, and the fixed end is also hermetically connected with one end of the magnetizer or the magnetizer sleeve through the fourth sealing ring;

the liquid inlet pipe is provided with a liquid inlet, a pump core spring and a fixed end, and a liquid inlet cavity is formed in the liquid inlet pipe;

the liquid inlet is provided with a liquid inlet channel communicated with the liquid inlet cavity;

the pump core spring is arranged in the liquid inlet cavity, one end of the pump core spring is connected with the pump core, the other end of the pump core spring is abutted against the inner wall, close to the liquid inlet, of the liquid inlet pipe, and the pump core spring is arranged to be matched with a pump core lower spring of the pump body to jointly limit the reciprocating motion range of the pump core in the liquid inlet pipe;

the fixed end is connected with the pump body or the magnetizer to fix the liquid inlet pipe.

In one embodiment, a dc electromagnetic pump comprises a coil, a circuit board, and any one of the dc electromagnetic pump assemblies, wherein the coil is mounted to the coil holder, and the circuit board is mounted to the mounting bracket.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a dc electromagnetic pump assembly according to the present application.

Fig. 2 is another schematic view of the embodiment shown in fig. 1.

FIG. 3 is a schematic cross-sectional view of the embodiment of FIG. 1 in one direction.

Fig. 4 is an enlarged schematic view of the embodiment shown in fig. 3.

Fig. 5 is another schematic view of the embodiment shown in fig. 1.

Fig. 6 is another schematic view of the embodiment shown in fig. 5.

Fig. 7 is another schematic view of the embodiment of fig. 5.

Fig. 8 is another schematic view of the embodiment of fig. 5.

Fig. 9 is another schematic view of the embodiment of fig. 5.

Fig. 10 is another schematic view of the embodiment of fig. 5.

FIG. 11 is a schematic structural diagram of another embodiment of a DC solenoid pump assembly according to the present application.

Fig. 12 is another schematic view of the embodiment of fig. 11.

FIG. 13 is an exploded view of another embodiment of a DC solenoid pump assembly as described herein.

Fig. 14 is another schematic view of the embodiment of fig. 13.

Fig. 15 is another schematic view of the embodiment of fig. 13.

Fig. 16 is another schematic view of the embodiment of fig. 13.

Fig. 17 is another schematic view of the embodiment of fig. 13.

Fig. 18 is a schematic diagram of a control waveform of the dc electromagnetic pump according to the present application.

Fig. 19 is a schematic diagram of a control waveform of an ac electromagnetic pump according to the conventional art.

Reference numerals:

the pump comprises a pump head 100, a pump body 200, a pump core 300, a liquid inlet pipe 400, a coil base 900, a magnetizer 600, a magnetism isolating sleeve 700, a magnetism conducting sleeve 800 and a mounting rack 500;

the liquid outlet 110, the liquid outlet channel 120, the liquid outlet cavity 130, the check spring 140 and the first check head 150;

a first sealing ring 210, a second sealing ring 220, a third sealing ring 230, a fourth sealing ring 240, a pump core seat 250, a pump core gasket 260, a pump liquid channel 270, a pump core lower spring 280 and a liquid outlet end 290;

the pump comprises an inner cavity 310, a pump core inner spring 320, a fixed connection end 330, a shoulder 350, a convex part 360, a second check head 370, a liquid inlet area 380 and a pump liquid area 390;

the liquid inlet 410, the liquid inlet channel 420, the liquid inlet cavity 430, the pump core spring 450 and the fixed end 460;

the cavity 510, the avoiding position 601, the fool-proof groove 602, the positioning screw hole 603, the first assembling portion 610, the second assembling portion 620 and the through groove 910.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The application discloses a direct current electromagnetic pump and a component thereof, wherein the direct current electromagnetic pump comprises a part of or the whole structure of the following embodiments; that is, the dc electromagnetic pump includes some or all of the following features. In one embodiment of the application, the direct current electromagnetic pump assembly comprises a pump head, a pump body, a pump core, a liquid inlet pipe, a mounting frame, a magnetizer and a coil base; the pump head is fixed on the pump body, and the pump body is fixed on the magnetizer; the coil holder and the mounting frame are fixed on the magnetizer, the mounting frame is arranged outside the coil holder in an enclosing manner, the coil holder is used for installing a coil, and the mounting frame is used for installing a circuit board connected with the coil; the liquid inlet pipe penetrates through the coil seat and the magnetizer and is connected with the pump body, the pump core is arranged in the liquid inlet pipe, and the pump core is used for pumping liquid entering the liquid inlet pipe out of the pump head through the pump body under the action of the circuit board and the coil; the magnetizer comprises at least two assembling parts, and the magnetizer is formed by assembling the assembling parts. The direct current electromagnetic pump component is easy to assemble magnetizers, can adopt direct current as an input power supply, can realize low-voltage direct current control of the lithium battery, and controls the direct current electromagnetic pump to work by matching with a circuit board to simulate the on-off time of alternating current, so that the direct current electromagnetic pump can normally work to pump liquid under direct current; for the pump, the internal pressure and the flow of the pump are more stable and balanced, and the structure is more reasonable and practical. When the pumped liquid is water, the direct current electromagnetic pump assembly can be called a water pumping assembly, and the direct current electromagnetic pump adopting the direct current electromagnetic pump assembly can be called a water pump.

Referring to fig. 1 and 2, in one embodiment, a dc electromagnetic pump assembly includes a pump head 100, a pump body 200, a liquid inlet pipe 400, a mounting frame 500, a magnetic conductor 600, and a coil holder 900; with reference to fig. 3, the dc solenoid pump assembly further includes a pump core 300. The pump head 100 is fixed on the pump body 200, and the pump body 200 is fixed on the magnetizer 600; the coil holder 900 and the mounting bracket 500 are both fixed on the magnetizer 600, the mounting bracket 500 is arranged around the coil holder 900, the coil holder 900 is arranged to mount a coil, and the mounting bracket 500 is arranged to mount a circuit board connected with the coil; the liquid inlet tube 400 passes through the coil holder 900 and the magnetizer 600 and is connected to the pump body 200, the pump core 300 is disposed in the liquid inlet tube 400, and the pump core 300 is configured to pump the liquid entering from the liquid inlet tube 400 out of the pump head 100 through the pump body 200 under the action of the circuit board and the coil. Due to the design, the integral structure is easy to enlarge and reduce according to requirements, can be manufactured into a miniature electromagnetic pump, and can also be adaptively enlarged in proportion, so that the requirements of different application environments are met.

In this embodiment, the magnetizer 600 includes at least two assembling portions, and the magnetizer 600 is formed by assembling the assembling portions. In this embodiment, the number of the assembling portions is two, which are a first assembling portion 610 and a second assembling portion 620, wherein the first assembling portion 610 is disposed adjacent to the pump head 100, and the second assembling portion 620 is disposed adjacent to the liquid inlet pipe 400. In this embodiment, one end of the first assembling portion 610 and one end of the second assembling portion 620 are integrally disposed, and the other ends are detachably combined. Due to the design, the installation frame 500 and the coil holder 900 are easy to assemble in the magnetizer 600, and especially, the coil holder 900 can be assembled first, then the coil is installed, and then the installation of the installation frame 500 is completed.

In this embodiment, the pump head 100 is integrally provided with the pump body 200. In practical applications, the pump head 100 and the pump body 200 may be integrally injection molded, or integrally cast or forged, and may be made of any material according to application requirements.

As shown in fig. 2, in one embodiment, the magnetic conductor 600 is provided with an avoidance portion 601, the coil holder 900 is at least partially located in the avoidance portion 601 of the magnetic conductor 600, and the mounting frame 500 is partially located in the avoidance portion 601. The design is favorable for reducing the volume of the electromagnetic pump when the coil base and the mounting rack are convenient to mount, and the electromagnetic pump is particularly suitable for manufacturing a miniature direct-current electromagnetic pump.

As shown in fig. 3, in one embodiment, the pump head 100 is provided with a liquid outlet 110, a check spring 140 and a first check head 150, and the pump head 100 is further provided with a liquid outlet chamber 130; the liquid outlet 110 is provided with a liquid outlet channel 120 communicated with the liquid outlet cavity 130; the check spring 140 is connected to the first check head 150, and both the check spring 140 and the first check head 150 are disposed in the liquid outlet chamber 130; the first check head 150 abuts against the liquid outlet end 290 of the pump body 200 under the elastic force of the check spring 140, so that the liquid outlet end 290 and the first check head 150 are relatively closed, and the liquid outlet end 290 and the liquid outlet cavity 130 are relatively closed. It is understood that the check spring 140 is divided into two segments to have a compressed state, and further, in practical applications, the check spring 140 is a single body, one end of which is connected to the first check head 150, and the other end of which abuts against the inner wall of the pump head 100 and is adjacent to the liquid outlet 110 or the liquid outlet channel 120, such that, in a state where no liquid is pumped out, or in a state where the dc electromagnetic pump is operated and liquid is pumped into the inner cavity 310, an elastic force is applied to the first check head 150 by the check spring 140 to make the first check head 150 block the liquid outlet 290, so that the liquid outlet 290 is relatively closed with the liquid outlet cavity 130; when the dc electromagnetic pump is operated and in an output state, i.e., a pumping state, the check spring 140 is compressed by the first check head 150 under a force, i.e., is elastically deformed, and in the compressed state or a further compressed state, the first check head 150 no longer blocks the liquid outlet end 290, so that the liquid outlet end 290 and the liquid outlet cavity 130 are relatively open, and the liquid pumped into the inner cavity 310, including water or other fluids, enters the liquid outlet cavity 130 and is sequentially pumped out through the liquid outlet cavity 130 and the liquid outlet channel 120.

In this embodiment, the liquid inlet pipe 400 is provided with a liquid inlet 410, a pump core spring 450 and a fixed end 460, and the liquid inlet pipe 400 is further provided with a liquid inlet cavity 430; the liquid inlet 410 is provided with a liquid inlet channel 420 communicated with the liquid inlet cavity 430; the pump core spring 450 is disposed in the liquid inlet cavity 430, one end of the pump core spring 450 is connected to the pump core 300, and the other end abuts against the inner wall of the liquid inlet pipe 400 adjacent to the liquid inlet 410, and the pump core spring 450 is configured to cooperate with the pump core lower spring 280 of the pump body 200 to jointly limit the reciprocating range of the pump core 300 in the liquid inlet pipe 400; the fixing end 460 is connected to the pump body 200 or the magnetizer 600 to fix the liquid inlet pipe 400. In such a design, the liquid inlet channel 420 is sequentially communicated with the liquid inlet cavity 430, the inner cavity 310, the pump liquid channel 270, the liquid outlet end 290 and the liquid outlet channel 120, that is, a pumping object of the dc electromagnetic pump, including but not limited to water, can also be other fluids, and the pumping object is pumped out after sequentially passing through the liquid inlet channel 420, the liquid inlet cavity 430, the inner cavity 310, the pump liquid channel 270, the liquid outlet end 290 and the liquid outlet channel 120.

In this embodiment, a cavity 510 is disposed between the mounting frame 500 and the coil holder 900, and the cavity 510 is configured to accommodate the coil, such as a dc coil. Further, the shape of the cavity 510 is adapted to the coil, and the shape of the cavity 510 is defined by the mounting frame 500 and the coil holder 900 together; that is, the mounting frame 500 and the coil holder 900 are designed according to the shape and size of the coil, so that the cavity 510 adapted to the coil is formed between the two, which is beneficial to mounting and fixing the coil on one hand, and is beneficial to reducing the volume of the direct current electromagnetic pump on the other hand, so that the structure of the direct current electromagnetic pump is more compact, and the direct current electromagnetic pump is especially suitable for miniaturization application.

With reference to fig. 3 and 4, further, the pump core 300 is provided with an inner cavity 310 communicating the liquid inlet pipe 400 and the liquid outlet cavity 130, and an inner spring 320 and a second check head 370 are disposed in the inner cavity 310; the inner cavity 310 comprises a liquid inlet area 380 and a liquid pumping area 390, the liquid inlet area 380 is communicated with the liquid inlet cavity 430 of the liquid inlet pipe 400, and the liquid pumping area 390 is communicated with the liquid outlet cavity 130 through the liquid outlet end 290; the fixed end 330 of the pump core internal spring 320 abuts against the pump core 300 or is fixed to the pump core 300, so that the pump core internal spring 320 is driven by the pump core 300 to keep the position of the fixed end 330, the other end of the pump core internal spring 320 is connected with the second check head 370, and the pump core internal spring 320 is set to have a closed state and an open state in a reciprocating motion state of the pump core 300; the open state is that the pump liquid area 390 is communicated with the pump liquid channel 270 of the pump body 200 by acting on the second check head 370, even if the pump liquid area 390 is communicated with the liquid outlet end 290 through the pump liquid channel 270, and at the same time, the first check head 150 abuts against and closes the liquid outlet end 290 of the pump body 200 under the elastic force of the check spring 140, so that the liquid outlet cavity 130 cannot be communicated with the pump liquid area 390 through the liquid outlet end 290 at the position of the pump core seat 250, at this time, the liquid enters the liquid outlet end 290 through the pump liquid channel 270, but cannot enter the liquid outlet cavity 130, and the liquid in the liquid outlet cavity 130 cannot flow back to the liquid outlet end 290 due to the closing action of the first check head 150; the closed state is that the pumping liquid area 390 is closed with the pumping liquid channel 270 by acting on the second check head 370, even if the pumping liquid area 390 is closed with the pumping liquid channel 270 and the liquid outlet end 290, and at the same time, the elastic force of the check spring 140 is overcome to separate the first check head 150 from the liquid outlet end 290 of the pump body 200, so that the liquid in the pumping liquid channel 270 enters the liquid outlet cavity 130 through the liquid outlet end 290, and the pressurized output is realized. It can be understood that the closed state and the open state are opposite, and are mainly set according to the motion state of the spring 320 in the pump core, and the length and elasticity of the spring 320 in the pump core are matched, when the liquid is discharged, the second check head 370 blocks the pump liquid channel 270 and the liquid outlet end 290 to discharge the liquid, and when the liquid is not discharged, the second check head 370 does not block the pump liquid channel 270 and the liquid outlet end 290 to discharge the liquid.

In this embodiment, the pump body 200 is provided with a pump core seat 250 and a pump core lower spring 280; the pump core seat 250 is adjacent to the pump head 100 or inserted into the liquid outlet cavity 130, the pump core seat 250 is provided with a pump liquid channel 270 and a liquid outlet end 290 thereof, the liquid outlet end 290 is communicated with the liquid outlet cavity 130, and the pump liquid channel 270 is also communicated with the inner cavity 310 of the pump core 300; one end of the core lower spring 280 abuts against the core seat 250, and the other end of the core lower spring is connected with the shoulder 350 of the core 300, so that the core 300 is far away from the core seat 250 under the elastic force of the core lower spring 280. Further, a pump core gasket 260 is further disposed in the pump body 200, the pump core gasket 260 is disposed between the protrusion 360 of the pump core 300 and the fixed end 460 of the liquid inlet pipe 400, so that the protrusion 360 and the fixed end 460 are hermetically connected by the pump core gasket 260, and one end of the pump core seat 250, which is far away from the pump head 100, abuts against the pump core gasket 260; one end of the core down spring 280 abuts the core washer 260 and, through the core washer 260, the core seat 250. Similarly, the in-core spring 320, the core spring 450, and the under-core spring 280 are shown in their compressed states. Further, the thickness of the pump core gasket 260 is set according to the magnetic field acting force of the coil and/or the mass of the pump core 300, so that when the pump core 300 reciprocates under the magnetic field acting force of the coil and the action of the pump core spring 450, an excessive impulsive force is prevented from being applied to the pump core seat 250, on one hand, the protection of the pump core seat 250 is facilitated, on the other hand, the vibration of the dc electromagnetic pump is prevented, and on the other hand, the third sealing ring 230 is fixed. The coil is controlled by the circuit board, when the coil generates a magnetic field acting force, the pump core 300 is driven to move downwards, namely towards the liquid inlet 410, the limit position of the downward movement of the pump core 300 is limited by the pump core spring 450, and the maximum distance of the downward movement of the pump core 300 is limited by the pump core spring 450 in a recoverable elastic deformation state; under the action of the pump core internal spring 320 and the fixed connection end 330 thereof, the second check head 370 is acted by the pump core internal spring 320, so that the second check head is separated from the convex portion 360, the inner cavity 310 is communicated with the liquid outlet cavity 130 through the pump liquid channel 270, water or other fluid in the inner cavity 310 can be pumped into the liquid outlet cavity 130, the second check head 370 abuts against the pump liquid channel 270 at the convex portion 360, so that the liquid outlet end 290 is closed, the pump liquid area 390 is further closed with the liquid outlet cavity 130, and the fixed connection end 330 does not obstruct the communication of the inner cavity 310 with the liquid inlet cavity 430, so that liquid, such as water or other fluid, in the liquid inlet cavity 430 can enter the inner cavity 310. When the acting force of the magnetic field generated by the coil disappears, the pump core 300 moves upward under the action of the pump core spring 450, i.e. moves toward the pump head 100, the second check head 370 abuts against the pump liquid channel 270 at the protrusion 360, so as to close the liquid outlet end 290, and further the pump liquid area 390 and the liquid outlet chamber 130 are closed, and output through the liquid outlet channel 120. Through the above-mentioned cooperation, the liquid entering from the liquid inlet pipe 400 can be pumped out from the pump head 100 through the pump body 200.

With reference to fig. 3 and 4, further, the dc electromagnetic pump assembly further includes a magnetism isolating sleeve 700 and a magnetism conducting sleeve 800, the magnetism isolating sleeve 700 and the magnetism conducting sleeve 800 are both sleeved outside the liquid inlet pipe 400, and the magnetism isolating sleeve 700 and the magnetism conducting sleeve 800 are both located between the liquid inlet pipe 400 and the coil base 900, the magnetism isolating sleeve 700 is disposed in the range of the reciprocating motion of the pump core 300 in the liquid inlet pipe 400, and cooperates with the coil to limit the limit position of the reciprocating motion of the pump core 300 to compress the pump core spring 450 of the liquid inlet pipe 400, so as to achieve the effects of magnetism isolating and magnetic leakage prevention; the flux sleeve 800 is disposed adjacent to the flux barrier 700. Further, the number of the flux sleeves 800 is two, and the flux barrier 700 is located between the two flux sleeves 800. With such a design, on one hand, the magnetic energy generated by the coil is fully utilized by the flux sleeve 800 to act on the reciprocating motion of the pump core 300, so that the energy efficiency is improved; and on the other hand, the reciprocating range of the pump core 300 is controlled by the magnetism isolating sleeve 700.

With reference to fig. 3 and 4, in one embodiment, a first seal ring 210, a second seal ring 220, a third seal ring 230, and a fourth seal ring 240 are further disposed in the pump body 200; pump core seat 250 passes through first sealing washer 210 with the inner wall of pump head 100 or the inner wall sealing connection of pump body 200, the stiff end 460 of feed liquor pipe 400 passes through second sealing washer 220 with the inner wall sealing connection of pump body 200, pump core seat 250 passes through third sealing washer 230 with the convex part 360 sealing connection of pump core 300, stiff end 460 still passes through fourth sealing washer 240 with the one end sealing connection of magnetizer 600 or magnetizer 800. Such design is favorable to setting up independent part on the one hand so that the assembly, and on the other hand is favorable to sealing the clearance between each part, avoids the weeping to leak and leaks and influence the effect of pumping, has guaranteed the design life of product normal use.

With reference to fig. 3 and 4, further, in one embodiment, the pump cartridge holder 250 receives the protrusion 360 of the pump cartridge 300 in the pump fluid passage 270 thereof, and the pump cartridge holder 250 is provided with a first shoulder for abutting against the first seal ring 210, the first seal ring 210 having two sets of abutting positions for abutting against the pump cartridge holder 250 and the pump head 100, each set of abutting positions being arranged in pairs such that the first seal ring 210 abuts against the pump cartridge holder 250 or the pump head 100 in at least four directions or four line contact positions; the fixed end 460 is also provided with a second shoulder for abutting against the second seal ring 220, the second seal ring 220 has two sets of abutting positions for abutting against the fixed end 460 and the pump head 100, and each set of abutting positions are arranged in pairs, so that the second seal ring 220 abuts against the fixed end 460 and the pump head 100 in at least four directions or four line contact positions. Furthermore, the shape and the size of each sealing ring are set according to the gap of the contact position, so that the sealing rings are adapted to the corresponding sealing position. Such a design is advantageous for enhancing the sealing effect of the pump cartridge holder 250 and the pump head 100, and enhancing the sealing effect of the fixing end 460 and the pump head 100, thereby preventing liquid leakage.

Referring to fig. 5 and 6, in one embodiment, the coil holder 900 is located in the mounting rack 500, and the mounting rack 500 is located in the magnetic conductor 600, that is, the coil holder 900 is at least partially covered by the mounting rack 500. Referring to fig. 7 and 8, in the present embodiment, the pump head 100 and the liquid inlet pipe 400 are respectively located at two ends of the pump body 200. With reference to fig. 9 and 10, in the present embodiment, the mounting frame 500 is partially located in the magnetic conductor 600. The magnetizer 600 is used for magnetic conduction and is used as a frame installation structure, and if necessary, the magnetizer can also be made of non-magnetic materials and is only used as the frame installation structure.

With reference to fig. 11 and 12, in one embodiment, the first assembly portion 610 and the second assembly portion 620 are spliced together; and/or, the first assembling portion 610 and the second assembling portion 620 are at least partially embedded; and/or the first assembly part 610 and the second assembly part 620 are clamped with each other; and/or the first assembly portion 610 and the second assembly portion 620 are screwed. In practical applications, the first assembling portion 610 and the second assembling portion 620 may have a plurality of connecting manners, mainly forming an open space for conveniently installing and fixing the mounting frame 500 and the coil holder 900.

Referring to fig. 13 and 14, in one embodiment, the coil holder 900 is provided with a through slot 910, and referring to fig. 3 and 15, the liquid inlet pipe 400 passes through the through slot 910. With reference to fig. 16 and 17, further, the magnetizer 600 is further provided with a fool-proof groove 602 and at least three positioning screw holes 603, the fool-proof groove 602 is installed in the pump body 200 in a matching manner to realize a fool-proof design, and the pump body 200 is fixed to the magnetizer 600 through the positioning screw holes 603 in a threaded manner. Such a design facilitates a secure assembly of the pump body 200.

Referring to fig. 1 to 17 together, in one embodiment, the dc electromagnetic pump assembly includes a pump head 100, a pump body 200, a pump core 300, a liquid inlet pipe 400, a mounting frame 500, a magnetic conductor 600, and a coil base 900; the pump head 100 is fixed on the pump body 200, and the pump body 200 is fixed on the magnetizer 600; the coil holder 900 and the mounting bracket 500 are both fixed on the magnetizer 600, the mounting bracket 500 surrounds the coil holder 900, the coil holder 900 is provided for mounting a coil, and the mounting bracket 500 is provided for mounting a circuit board connected with the coil; the liquid inlet pipe 400 passes through the coil holder 900 and the magnetizer 600 and is connected with the pump body 200, the pump core 300 is arranged in the liquid inlet pipe 400, and the pump core 300 is arranged to pump the liquid entering from the liquid inlet pipe 400 out of the pump head 100 through the pump body 200 under the action of the circuit board and the coil; the pump head 100 is provided with a liquid outlet 110, a check spring 140 and a first check head 150, and the pump head 100 is further provided with a liquid outlet cavity 130; the liquid outlet 110 is provided with a liquid outlet channel 120 communicated with the liquid outlet cavity 130; the check spring 140 is connected to the first check head 150, and both the check spring 140 and the first check head 150 are disposed in the liquid outlet chamber 130; the first check head 150 abuts against the liquid outlet end 290 of the pump body 200 under the elastic force of the check spring 140, so that the liquid outlet end 290 and the first check head 150 are relatively closed; the pump core 300 is provided with an inner cavity 310 communicating the liquid inlet pipe 400 and the liquid outlet cavity 130, and an inner spring 320 and a second check head 370 are arranged in the inner cavity 310; the inner cavity 310 comprises a liquid inlet area 380 and a liquid pumping area 390, the liquid inlet area 380 is communicated with the liquid inlet cavity 430 of the liquid inlet pipe 400, and the liquid pumping area 390 is communicated with the liquid outlet cavity 130 through the liquid outlet end 290; the fixed end 330 of the pump core internal spring 320 abuts against the pump core 300, the other end of the pump core internal spring is connected with the second check head 370, and the pump core internal spring 320 is set to have a closed state and an open state in a reciprocating motion state of the pump core 300; when the pump core 300 is away from the pump head 100, the open state acts on the second check head 370 to communicate the pump liquid region 390 with the pump liquid passage 270 of the pump body 200, and simultaneously, the first check head 150 abuts against and closes the liquid outlet end 290 of the pump body 200 under the elastic force of the check spring 140; the closed state is that when the pump core 300 approaches the pump head 100, the second check head 370 acts to close the pumping liquid region 390 from the pumping liquid channel 270, and the elastic force of the check spring 140 is overcome to separate the first check head 150 from the liquid outlet end 290 of the pump body 200; a pump core seat 250 and a pump core lower spring 280 are arranged in the pump body 200; the pump core seat 250 is adjacent to the pump head 100 or inserted into the liquid outlet cavity 130, the pump core seat 250 is provided with a pump liquid channel 270 and a liquid outlet end 290 thereof, the liquid outlet end 290 is communicated with the liquid outlet cavity 130, and the pump liquid channel 270 is also communicated with the inner cavity 310 of the pump core 300; a pump core gasket 260 is further disposed in the pump body 200, the pump core gasket 260 is disposed between the protrusion 360 and the fixed end 460 of the liquid inlet pipe 400, so that the protrusion 360 and the fixed end 460 are hermetically connected by the pump core gasket 260, and one end of the pump core seat 250, which is far away from the pump head 100, abuts against the pump core gasket 260; one end of the core down spring 280 abuts the core washer 260 and abuts the core seat 250 through the core washer 260; the other end of the core lower spring 280 is connected with a shoulder 350 of the core 300, so that the core 300 is far away from the core seat 250 under the elastic force of the core lower spring 280; a first sealing ring 210, a second sealing ring 220, a third sealing ring 230 and a fourth sealing ring 240 are further arranged in the pump body 200; the pump core holder 250 is hermetically connected to the inner wall of the pump head 100 or the inner wall of the pump body 200 through the first sealing ring 210, the fixed end 460 of the liquid inlet pipe 400 is hermetically connected to the inner wall of the pump body 200 through the second sealing ring 220, the pump core holder 250 is hermetically connected to the convex portion 360 of the pump core 300 through the third sealing ring 230, and the fixed end 460 is further hermetically connected to one end of the magnetic conductor 600 or the magnetic conductive sleeve 800 through the fourth sealing ring 240; the liquid inlet pipe 400 is provided with a liquid inlet 410, a pump core spring 450 and a fixed end 460, and the liquid inlet pipe 400 is also provided with a liquid inlet cavity 430; the liquid inlet 410 is provided with a liquid inlet channel 420 communicated with the liquid inlet cavity 430; the pump core spring 450 is disposed in the liquid inlet cavity 430, one end of the pump core spring 450 is connected to the pump core 300, and the other end of the pump core spring 450 abuts against the inner wall of the liquid inlet pipe 400 adjacent to the liquid inlet 410, and the pump core spring 450 is configured to cooperate with the pump core lower spring 280 of the pump body 200 to jointly limit the reciprocating range of the pump core 300 in the liquid inlet pipe 400; the fixing end 460 is connected to the pump body 200 or the magnetizer 600 to fix the liquid inlet pipe 400. The rest of the embodiments are analogized and are not described in detail.

In one embodiment, a dc electromagnetic pump comprises a coil, a circuit board, and the dc electromagnetic pump assembly of any embodiment, wherein the coil is mounted on the coil holder 900, and the circuit board is mounted on the mounting frame 500. Further, the coil is disposed between the coil holder 900 and the mounting frame 500, and the circuit board is disposed inside the mounting frame 500. According to the design, direct current can be used as an input power supply, low-voltage direct current control of the lithium battery can be realized, the direct current electromagnetic pump is controlled to work by matching with a circuit board to simulate the on-off time of alternating current, so that the direct current electromagnetic pump can normally work under direct current to pump liquid, and the flow can be regulated and controlled in a stepless manner through the circuit board due to direct current control, so that the difficulty of controlling the flow of the whole machine is simplified, the flow is easy to change, the flow stability is good, and the flow precision is higher; for the pump, the internal pressure and the flow of the pump are more stable and balanced, and the structure is more reasonable and practical.

In each embodiment, the direct current electromagnetic pump can also be called as an electromagnetic vibration pump or a miniature electromagnetic vibration pump, an input power supply of the direct current electromagnetic pump is direct current, a circuit board is used for simulating the on-off time of alternating current to control the electromagnetic pump to work, a wave form diagram is shown in fig. 18, for comparison, the wave form diagram of the traditional alternating current control electromagnetic pump is shown in fig. 19, the circuit board control mode of the electromagnetic pump realizes that the electromagnetic pump can normally work under the direct current to pump liquid, the flow of the electromagnetic pump can be regulated in a stepless mode, the flow is convenient to change, the flow stability is good, and the flow precision is high. In another specific embodiment, the direct current electromagnetic pump comprises a pump body, a pump core spring, a coil, a check head, a pump core seat, a pump core internal spring, a pump core check head and the like. The input power supply of the direct current electromagnetic pump is direct current of a lithium battery, and the work of the electromagnetic pump is controlled by simulating the on-off time of alternating current through a circuit board; under this kind of control mode, the electromagnetic pump flow can stepless regulation and control, and it is convenient to change the flow, need not to change the interior configuration of electromagnetic pump, and flow stability is good, and the flow precision is higher. The micro electromagnetic vibration pump can realize low-voltage direct-current control of the lithium battery, provides strong technical support for wireless whole machine products, controls the electromagnetic pump to work by using a circuit board to simulate the on-off time of alternating current, can regulate and control the flow of the electromagnetic pump in a stepless manner, and simplifies the difficulty of controlling the flow of the whole machine; to the pump itself, pump internal pressure, flow are more stable balanced, and the structure is more reasonable practical, can be used to fields such as vacuum filtration, absorption article, vacuum pressurize, cyclic sampling, indirect water absorption.

Other embodiments of the present application further include a dc electromagnetic pump assembly and a dc electromagnetic pump, which are formed by combining technical features of the above embodiments.

Other embodiments of the present application further include a dc electromagnetic pump assembly and a dc electromagnetic pump, which are formed by combining technical features of the above embodiments.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (10)

1. A direct current electromagnetic pump assembly is characterized by comprising a pump head (100), a pump body (200), a pump core (300), a liquid inlet pipe (400), a mounting frame (500), a magnetizer (600) and a coil base (900);

the pump head (100) is fixed on the pump body (200), and the pump body (200) is fixed on the magnetizer (600);

the coil holder (900) and the mounting rack (500) are fixed on the magnetizer (600), the mounting rack (500) is arranged outside the coil holder (900) in a surrounding manner, the coil holder (900) is arranged for mounting a coil, and the mounting rack (500) is arranged for mounting a circuit board connected with the coil;

the liquid inlet pipe (400) penetrates through the coil base (900) and the magnetizer (600) and is connected with the pump body (200), the pump core (300) is arranged in the liquid inlet pipe (400), and the pump core (300) is arranged to pump liquid entering from the liquid inlet pipe (400) out of the pump head (100) through the pump body (200) under the action of the circuit board and the coil;

the magnetizer (600) comprises at least two assembling parts, and the magnetizer (600) is formed by assembling the assembling parts.

2. The direct current electromagnetic pump assembly according to claim 1, characterized in that the number of said assemblies is two, respectively a first assembly (610) and a second assembly (620), wherein said first assembly (610) is disposed adjacent to said pump head (100) and said second assembly (620) is disposed adjacent to said liquid inlet pipe (400).

3. The direct current electromagnetic pump assembly according to claim 2, characterized in that one end of the first assembly portion (610) and one end of the second assembly portion (620) are integrally provided, and the other ends are detachably combined.

4. The direct current electromagnetic pump assembly according to claim 2, characterized in that said first assembly portion (610) and said second assembly portion (620) are mutually spliced.

5. The direct current electromagnetic pump assembly according to claim 3, characterized in that the first assembly portion (610) and the second assembly portion (620) are at least partially fitted.

6. The direct current electromagnetic pump assembly according to claim 2, characterized in that said first assembly portion (610) and said second assembly portion (620) are snap-fitted to each other.

7. The direct current electromagnetic pump assembly according to claim 2, characterized in that said first assembly portion (610) and said second assembly portion (620) are provided in a threaded manner.

8. The dc electromagnetic pump assembly according to claim 1, wherein the pump head (100) is provided integrally with the pump body (200).

9. The d.c. electromagnetic pump assembly according to any of claims 1 to 8, wherein said pump head (100) is provided with a liquid outlet (110), a check spring (140) and a first check head (150), said pump head (100) further being provided with a liquid outlet chamber (130);

the liquid outlet (110) is provided with a liquid outlet channel (120) communicated with the liquid outlet cavity (130);

the check spring (140) is connected with the first check head (150), and the check spring (140) and the first check head (150) are both arranged in the liquid outlet cavity (130);

the first check head (150) is abutted against the liquid outlet end (290) of the pump body (200) under the elastic force action of the check spring (140), so that the liquid outlet end (290) and the first check head (150) are relatively closed;

the pump core (300) is provided with an inner cavity (310) communicated with the liquid inlet pipe (400) and the liquid outlet cavity (130), and a spring (320) and a second check head (370) in the pump core are arranged in the inner cavity (310);

the inner cavity (310) comprises a liquid inlet area (380) and a liquid pumping area (390), the liquid inlet area (380) is communicated with the liquid inlet cavity (430) of the liquid inlet pipe (400), and the liquid pumping area (390) is communicated with the liquid outlet cavity (130) through the liquid outlet end (290);

the fixed end (330) of the pump core internal spring (320) abuts against the pump core (300), the other end of the pump core internal spring is connected with the second check head (370), and the pump core internal spring (320) is set to have a closed state and an open state under the reciprocating motion state of the pump core (300); wherein the open state is that when the pump core (300) is far away from the pump head (100), the second check head (370) is acted on to enable the pump liquid area (390) to be communicated with the pump liquid channel (270) of the pump body (200), and meanwhile, the first check head (150) is abutted against and closes the liquid outlet end (290) of the pump body (200) under the elastic force of the check spring (140); the closed state is that when the pump core (300) is close to the pump head (100), the second check head (370) acts to seal the pump liquid area (390) and the pump liquid channel (270), and meanwhile, the elastic force of the check spring (140) is overcome to enable the first check head (150) to be separated from the liquid outlet end (290) of the pump body (200);

a pump core seat (250) and a pump core lower spring (280) are arranged in the pump body (200);

the pump core seat (250) is adjacent to the pump head (100) or inserted into the liquid outlet cavity (130), the pump core seat (250) is provided with a pump liquid channel (270) and a liquid outlet end (290), the liquid outlet end (290) is communicated with the liquid outlet cavity (130), and the pump liquid channel (270) is also communicated with an inner cavity (310) of the pump core (300);

a pump core gasket (260) is further arranged in the pump body (200), the pump core gasket (260) is arranged between the convex part (360) of the pump core (300) and the fixed end (460) of the liquid inlet pipe (400) so that the convex part (360) and the fixed end (460) are in sealing connection through the pump core gasket (260), and one end, far away from the pump head (100), of the pump core seat (250) is abutted to the pump core gasket (260);

one end of the pump core lower spring (280) abuts against the pump core gasket (260) and abuts against the pump core seat (250) through the pump core gasket (260); the other end of the pump core lower spring (280) is connected with a shoulder position (350) of the pump core (300) so that the pump core (300) is far away from the pump core seat (250) under the action of the elastic force of the pump core lower spring (280);

a first sealing ring (210), a second sealing ring (220), a third sealing ring (230) and a fourth sealing ring (240) are further arranged in the pump body (200); the pump core seat (250) is in sealing connection with the inner wall of the pump head (100) or the inner wall of the pump body (200) through the first sealing ring (210), the fixed end (460) of the liquid inlet pipe (400) is in sealing connection with the inner wall of the pump body (200) through the second sealing ring (220), the pump core seat (250) is in sealing connection with the convex part (360) through the third sealing ring (230), and the fixed end (460) is also in sealing connection with one end of the magnetizer (600) or the magnetizer (800) through the fourth sealing ring (240);

the liquid inlet pipe (400) is provided with a liquid inlet (410), a pump core spring (450) and a fixed end (460), and the liquid inlet pipe (400) is also provided with a liquid inlet cavity (430);

the liquid inlet (410) is provided with a liquid inlet channel (420) communicated with the liquid inlet cavity (430);

the pump core spring (450) is arranged in the liquid inlet cavity (430), one end of the pump core spring (450) is connected with the pump core (300), the other end of the pump core spring abuts against the inner wall, adjacent to the liquid inlet (410), of the liquid inlet pipe (400), the pump core spring (450) is arranged to be matched with the pump core lower spring (280) of the pump body (200), and the range of reciprocating motion of the pump core (300) in the liquid inlet pipe (400) is limited together;

the fixed end (460) is connected with the pump body (200) or the magnetizer (600) to fix the liquid inlet pipe (400).

10. A dc electromagnetic pump, comprising a coil, a circuit board and a dc electromagnetic pump assembly according to any one of claims 1 to 9, the coil being mounted to the coil holder (900), the circuit board being mounted to the mounting bracket (500).

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