CN111550594A

CN111550594A - Electromagnetic valve, electromagnetic valve pump valve module and integrated two-in-one tandem type electromagnetic valve

Info

Publication number: CN111550594A
Application number: CN202010364910.3A
Authority: CN
Inventors: 张海涛; 张金秋
Original assignee: Dongguan Anheisi Precision Electronics Co ltd
Current assignee: Dongguan Anheisi Precision Electronics Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-08-18
Anticipated expiration: 2040-04-30
Also published as: CN111550594B

Abstract

The application provides there is a solenoid valve, includes: a valve body; the side wall of the valve body is annularly provided with an electromagnetic coil; an air distribution cavity is arranged in the valve body, and an air inlet and an air outlet are respectively arranged at two ends of the air distribution cavity; the inner wall of the exhaust port is fixedly connected with an air exchange piece, and a first gap is formed between the air exchange piece and the exhaust port; the top of the air exchange piece is provided with an inflation inlet, and the side wall of the air exchange piece, which is far away from the first gap, is provided with an inflation hole communicated with the inflation inlet; the bottom of the air exchange piece is provided with an air release hole communicated with the first gap, and the side wall of the air exchange piece, which is on the same side with the first gap, is provided with a curved convex edge for preventing the first gap from being communicated with the air distribution cavity; a valve core arranged in the air distribution cavity is arranged below the air exchange piece; the first elastic element is sleeved on the air exchange piece and the valve core together; by switching the on-off state of the electromagnetic coil, the gapless state between the air exchange piece and the valve core can be adjusted.

Description

Electromagnetic valve, electromagnetic valve pump valve module and integrated two-in-one tandem type electromagnetic valve

Technical Field

The disclosure specifically discloses an electromagnetic valve, an electromagnetic valve pump valve module using the same and an integrated two-in-one tandem type electromagnetic valve.

Background

In order to improve comfort, an existing car seat is usually provided with a pneumatic massage and pneumatic waist support system. The pneumatic massage and pneumatic lumbar support system controls the air flow through the controller, and the electromagnetic valve is inevitably needed in the process of controlling the air flow. Most of the existing pneumatic waist support system and pneumatic massage system need two air sources and two air path control solenoid valves, which causes insufficient installation space and higher cost.

Therefore, how to reduce the installation space and the cost becomes a technical problem to be solved urgently by those skilled in the art. The composite electromagnetic valve type massage waist support controller for the automobile seat is provided in the prior art, the electromagnetic valve structure adopted in the controller is a two-position three-way electromagnetic valve, but the air leakage end and the air inflation end of the electromagnetic valve are respectively positioned at two ends of the electromagnetic valve, so that the size of the electromagnetic valve is difficult to further reduce, and urgent improvement is needed.

Disclosure of Invention

This application aims at providing one kind and compares in prior art, can realize locating the homonymy with the end of aerifing of disappointing for its self volume can further reduce the solenoid valve.

In a first aspect, a solenoid valve comprises: a valve body; the side wall of the valve body is annularly provided with an electromagnetic coil; an air distribution cavity is arranged in the valve body, and an air inlet and an air outlet are respectively arranged at two ends of the air distribution cavity; the inner wall of the exhaust port is fixedly connected with an air exchange piece, and a first gap is formed between the air exchange piece and the exhaust port; the top of the air exchange piece is provided with an inflation inlet, and the side wall of the air exchange piece, which is far away from the first gap, is provided with an inflation hole communicated with the inflation inlet; the bottom of the air exchange piece is provided with an air release hole communicated with the first gap, and the side wall of the air exchange piece, which is on the same side with the first gap, is provided with a curved convex edge for preventing the first gap from being communicated with the air distribution cavity; a valve core arranged in the air distribution cavity is arranged below the air exchange piece; the first elastic element is sleeved on the air exchange piece and the valve core together; by switching the on-off state of the electromagnetic coil, the gapless state between the air exchange piece and the valve core can be adjusted.

According to the technical scheme that this application embodiment provided, be equipped with bent type mounting groove just on the gas vent border the last ring of taking a breath is equipped with the mounting panel that the mounting groove matches and connects.

According to the technical scheme that this application embodiment provided, valve body outer wall ring is equipped with the holding chamber just the holding intracavity is around being equipped with solenoid.

According to the technical scheme provided by the embodiment of the application, a first stop groove and a second stop groove are respectively arranged on the outer wall of the air exchange piece and the outer wall of the valve core in a surrounding manner; two ends of the first elastic element are respectively clamped in the first stop groove and the second stop groove.

According to the technical scheme provided by the embodiment of the application, the method further comprises the following steps: the first U-shaped iron longitudinally spans the valve body; and the first U-shaped iron is provided with a through hole for allowing the air inlet and the free end of the air exchange piece to be exposed.

The application aims at providing the solenoid valve pump valve module of using above-mentioned solenoid valve.

In a second aspect, a solenoid valve pump valve module includes: a gas distribution layer comprising: in the electromagnetic valve of the first aspect, an air inlet of the electromagnetic valve is hermetically connected with an air outlet of the air distribution layer.

According to the technical scheme provided by the embodiment of the application, the gas distribution layer is also provided with a pressure regulating protrusion, and a pressure regulating groove is arranged in the pressure regulating protrusion; the bottom of the pressure regulating groove is provided with a pressure regulating hole communicated with the gas distribution layer; an overflow valve is arranged in the pressure regulating protrusion.

According to the technical scheme provided by the embodiment of the application, the overflow valve comprises: the overflow column with the bottom entering the pressure regulating hole, a limiting ring annularly arranged on the outer wall of the overflow column, a second elastic element sleeved on the side wall of the overflow column and positioned above the limiting ring, and a top cover sleeved on the top of the overflow column and provided with a through groove in the center; and a sealing ring is sleeved on the side wall of the overflow column below the limiting ring.

According to the technical scheme provided by the embodiment of the application, a compound electromagnetic valve is configured on at least one air outlet of the air distribution layer; the compound solenoid valve includes: the air leakage electromagnetic valve and the air inflation electromagnetic valve are connected in series and integrally formed in an injection molding mode; the first part area of the inflation electromagnetic valve is connected with the air outlet of the air source; the second position area of the air leakage electromagnetic valve is connected with the inflated bag; the second part area of the inflation solenoid valve is connected to the first part area of the deflation solenoid valve; when the inflation electromagnetic valve is electrified and the air leakage electromagnetic valve is powered off, inflation is realized; and when the inflation solenoid valve is powered off and the air leakage solenoid valve is powered on, air is exhausted through a third position area of the air leakage solenoid valve.

The application aims at providing an integrated two-connection series electromagnetic valve applying the electromagnetic valve.

In a third aspect, an integrated two-in-one tandem solenoid valve includes: the electromagnetic valves are symmetrically distributed on two sides of the air distribution part; the bottom of the gas distribution piece is provided with a gas inlet hole, and two ends of the gas distribution piece are provided with exhaust holes communicated with the gas inlet hole; the exhaust holes are respectively connected with the air inlets of the electromagnetic valves.

Aiming at the technical problem that the volume of the existing electromagnetic valve is difficult to be further reduced, the technical scheme provides a specific structure of the electromagnetic valve. In the specific structure of the electromagnetic valve, when the electromagnetic coil is in a power-on state, the air exchange piece and the valve core are affected by a magnetic field generated by the electromagnetic coil as a magnetic part, the magnetism of the near ends of the air exchange piece and the valve core is different, the fixedly arranged air exchange piece can attract the valve core to expose the air inlet, the curved convex edge can prevent the gas entering from the air inlet from leaking from the first gap, so that the air inlet, the air distribution cavity, the inflation hole and the inflation port form an inflation passage, and the electromagnetic valve in the state can inflate the air bag through the inflation passage. When the electromagnetic coil is in a non-energized state, the air exchanging piece and the valve core lose the influence of a magnetic field, the valve core can move to the direction away from the air exchanging piece to return to the initial position in the air distribution cavity under the action of the first elastic element so as to seal the air inlet, namely, a gap exists between the air exchanging piece and the valve core, and the air charging port, the air charging hole, the air distribution cavity, the air discharging hole and the first gap form an air discharging passage.

Based on the design, whether the electromagnetic coil is electrified or not can be adjusted, whether the air exchange piece and the valve core are mutually attracted or not can be adjusted, and finally, a gapless state can be adjusted between the air exchange piece and the valve core. When the electromagnetic coil is switched to the electrified state, no gap exists between the air exchange piece and the valve core, and at the moment, air flows in the air inflation passage; when the electromagnetic coil is switched to the electrified state, a gap is reserved between the air exchange piece and the valve core, and at the moment, air flows in the air leakage passage. The state of the inflation channel is switched to the state of the deflation channel, so that the working state of the air bag can be switched from the inflation state to the deflation state. The orientation of inflation inlet and first clearance is in same one side, can make and aerify the end and lose heart the end and be located same one side for the overall structure of solenoid valve can reduce.

The mounting structure of taking a breath piece and the gas vent of valve body has specifically been given among this technical scheme, promptly: through the mounting panel that the ring was established on the piece of will taking a breath and the bent type mounting groove rigid coupling on the gas vent border, can enough be with taking a breath on piece rigid coupling and the valve body, can make again to take a breath and have the first clearance of being convenient for lose heart between piece and the gas vent.

This technical scheme still further optimizes the structure of solenoid valve, if: in order to fix the first elastic element conveniently, two ends of the first elastic element are respectively clamped in the first stop groove and the second stop groove. For another example: in the technical scheme, the valve body is also provided with an accommodating cavity of the electromagnetic coil.

This technical scheme still provides the concrete structure of a solenoid valve pump valve module, uses in this solenoid valve pump valve module as described in the first aspect, and based on the design of above-mentioned solenoid valve, this solenoid valve pump valve module's volume can further reduce.

This technical scheme still further optimizes to the structure of the distribution layer of solenoid valve pump valve module, promptly in the structure of this module, for guaranteeing the stability of gas pressure in the distribution layer, distribution layer middle part is equipped with rather than the protruding just of pressure regulating of inside intercommunication the pressure regulating is protruding to dispose the overflow valve that possesses the steady voltage function, thereby gaseous from the overflow valve department when distribution layer atmospheric pressure is greater than the safety threshold value overflows and makes atmospheric pressure resume to in the safety threshold value. In addition, the embodiment also discloses a specific structure of the overflow valve.

Based on the design, the power-on and power-off electromagnetic valves of the inflation electromagnetic valves of the composite electromagnetic valves are powered off, and the power-on valve cores of the inflation electromagnetic valves move downwards to realize inflation; the inflation solenoid valve is powered off, the air release solenoid valve is powered on, and the air release solenoid valve is powered on, so that the valve core moves upwards to realize air release; the air inflation electromagnetic valve is powered off, the air leakage electromagnetic valve is powered off, and the air pressure in the air bag is kept. One air source can realize different control of the multiple paths of air bags through the composite electromagnetic valve, and meanwhile, the air pressure maintaining function in the air bags is also increased.

This technical scheme still provides the concrete structure that has integral type two antithetical couplet serial solenoid valve, and this patent provides serial solenoid valve structure, this structure with two first aspects the solenoid valve merge, realize simultaneously filling and disappointing for two air pockets. In addition, the solenoid valves on two sides in the integrated two-connection series solenoid valve adopt the structure of the first aspect, the solenoid valves are inflated and deflated to be adjusted to the same side, and the central air intake can simultaneously complete the inflation and deflation functions of different massage air bags on two sides respectively, so that the structure miniaturization and the assembly simplification are realized.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of an embodiment of a solenoid valve.

Fig. 2 is a schematic structural diagram of an embodiment of the solenoid valve.

Fig. 3 is a schematic structural diagram of an embodiment of the solenoid valve.

Fig. 4 is a schematic structural diagram of an embodiment of the solenoid valve.

Fig. 5 is a schematic structural diagram of an embodiment of the solenoid valve.

Fig. 5a shows a schematic structural diagram of an embodiment of the solenoid valve.

Fig. 6 is a schematic structural diagram of an embodiment of the solenoid valve.

Fig. 7 is a schematic structural diagram of an embodiment of the solenoid valve.

Fig. 8 is a schematic structural diagram of an embodiment of a solenoid pump valve module.

Fig. 9 is a schematic structural diagram of an embodiment of a solenoid pump valve module.

Fig. 10 is a schematic structural view of an embodiment of the overflow column.

Fig. 11 is a schematic structural diagram of an embodiment of a solenoid pump valve module.

FIG. 12 is a schematic structural diagram of an embodiment of a compound solenoid valve.

FIG. 12a is a schematic diagram of an embodiment of a compound solenoid valve.

FIG. 12b is a schematic diagram of an embodiment of a compound solenoid valve.

Fig. 13 is a schematic structural diagram of an embodiment of a solenoid pump valve module.

FIG. 14 is a schematic diagram of an embodiment of an integrated two-in-one tandem solenoid valve.

FIG. 15 is a schematic diagram of an embodiment of an integrated two-in-one tandem solenoid valve.

FIG. 16 is a schematic diagram of an embodiment of an integrated two-in-one tandem solenoid valve.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Please refer to fig. 1, which is a schematic structural diagram of an embodiment of a solenoid valve 10.

Referring to fig. 2, a schematic structural diagram of an embodiment of a solenoid valve is shown, in which the solenoid valve is in an energized state, and a direction indicated by an arrow is a gas flow direction.

Referring to fig. 3, a schematic structural diagram of an embodiment of a solenoid valve is shown, in which the solenoid valve is in an unpowered state, and a direction indicated by an arrow is a gas flow direction.

A solenoid valve 10 comprising: a valve body 101; the side wall of the valve body 101 is annularly provided with an electromagnetic coil 109; an air distribution cavity 102 is arranged in the valve body 101, and an air inlet and an air outlet are respectively arranged at two ends of the air distribution cavity 102.

Wherein:

the valve body 101 is a basic structure, and specifically, it may be integrally injection molded. The side wall of the electromagnetic coil is annularly provided with an electromagnetic coil. Optionally, please refer to a schematic structural diagram of an embodiment of the solenoid valve shown in fig. 4. The outer wall of the valve body 101 is provided with a receiving cavity 112 in a surrounding manner, and an electromagnetic coil 109 is wound in the receiving cavity 112.

The air distribution cavity is arranged in the valve body, and the two ends of the air distribution cavity are respectively provided with an air inlet and an air outlet.

The gas inlet is used for connecting a gas supply structure.

The inner wall of the exhaust port is fixedly connected with an air exchange piece 103, and a first gap 104 is arranged between the air exchange piece 103 and the exhaust port; the top of the air exchanging piece 103 is provided with an inflating opening 105, and the side wall of the air exchanging piece, which is far away from the first gap 104, is provided with an inflating hole communicated with the inflating opening 105; the bottom of the ventilation member 103 is provided with an air release hole communicated with the first gap 104, and the side wall of the ventilation member on the same side as the first gap 104 is provided with a curved convex edge 114 for preventing the first gap 104 from being communicated with the air distribution cavity 102, please refer to fig. 1; a valve core 107 arranged in the air distribution cavity 102 below the air exchange member 103; the first elastic element 108 is sleeved on the air exchange piece 103 and the valve core 107 together; by switching the on/off state of the electromagnetic coil 109, the clearance between the breather 103 and the valve body 107 can be adjusted.

Wherein:

the air exchange member is a core component in the embodiment, and one side wall of the air exchange member is fixedly connected with the end wall of the air outlet, so that a first gap is formed between the other side wall of the air exchange member and the air outlet. Optionally, the material of the air exchange member is iron.

Specifically, please refer to fig. 5 and 5a for a schematic structural diagram of an embodiment of the solenoid valve. The exhaust port edge is provided with a curved mounting groove 110, and the air exchange member 103 is annularly provided with a mounting plate 111 matched and connected with the mounting groove 110. The embodiment specifically provides a mounting mode between the air exchange piece and the exhaust port, the air exchange piece is placed into the air distribution chamber along the axis of the air distribution chamber, and then the mounting plate is fixedly connected with the mounting groove. The mounting plate is provided on a side wall of the air exchange member in view of the need to reserve a first gap between the air exchange member and the exhaust port.

When the electromagnetic coil is in a power-on state, the air exchange piece and the valve core are affected by a magnetic field generated by the electromagnetic coil, the magnetism of the near ends of the air exchange piece and the valve core is different, the fixedly arranged air exchange piece can attract the valve core to expose the air inlet, the curved convex edge can prevent gas entering from the air inlet from leaking from the first gap, so that the air inlet, the air distribution cavity, the air inflation hole and the air inflation opening form an air inflation passage, and the electromagnetic valve in the state can inflate the air bag through the air inflation passage.

When the electromagnetic coil is in a non-energized state, the air exchanging piece and the valve core lose the influence of a magnetic field, the valve core can move to the direction away from the air exchanging piece to return to the initial position in the air distribution cavity under the action of the first elastic element so as to seal the air inlet, namely, a gap exists between the air exchanging piece and the valve core, and the air charging port, the air charging hole, the air distribution cavity, the air discharging hole and the first gap form an air discharging passage.

Based on the design, in the embodiment, whether the electromagnetic coil is electrified or not can be adjusted, so that whether the air exchange piece and the valve core are mutually attracted or not can be adjusted, and finally, a gapless state between the air exchange piece and the valve core can be adjusted.

When the electromagnetic coil is switched to the electrified state, no gap exists between the air exchange piece and the valve core, and at the moment, air flows in the air inflation passage; when the electromagnetic coil is switched to the electrified state, a gap is reserved between the air exchange piece and the valve core, and at the moment, air flows in the air leakage passage. The state of the inflation channel is switched to the state of the deflation channel, so that the working state of the air bag can be switched from the inflation state to the deflation state. The orientation of inflation inlet and first clearance is in same one side, can make and aerify the end and lose heart the end and be located same one side for the overall structure of solenoid valve can reduce.

Optionally, the center of the top of the valve core is embedded with a rubber block, and when the air exchange piece attracts the valve core, the rubber block is used for sealing an air release hole at the bottom of the air exchange piece.

Optionally, a rubber block is embedded in the center of the bottom of the valve core, and when the valve core is reset under the action of a spring, the rubber block is used for sealing an air inlet of the air distribution cavity.

Please refer to a schematic structural diagram of an embodiment of the solenoid valve shown in fig. 6.

A first stop groove 1031 and a second stop groove 1071 are respectively arranged on the outer wall of the air exchange piece 103 and the outer wall of the valve core 107 in a surrounding manner; two ends of the first elastic element 108 are respectively clamped in the first and

second stop grooves

1031 and 1071.

The first and second stopper grooves 1061 and 1031 are designed to stably clamp the elastic element therebetween, thereby effectively preventing the first elastic element from falling off therefrom.

Optionally, the first elastic element is a spring.

Please refer to fig. 7 for a schematic structural diagram of an embodiment of the solenoid valve.

The structure of the electromagnetic valve further comprises: a first U-shaped iron 113 longitudinally arranged on the outer wall of the valve body 101 in a spanning manner; the first U-shaped iron 113 is provided with a through hole for allowing the air inlet and the free end of the air interchanger 103 to be exposed.

Optionally, the first U-shaped iron is fixedly connected with the valve body through a pin 115.

In the present embodiment, the magnetic flux of the magnetic field formed by the electromagnetic coil can be increased to assist the above-described operation process.

Specifically, the first U-shaped iron, in fig. 8, is disposed across the sidewall of the valve body, i.e., horizontally disposed with its opening facing the valve body, and two free ends of the first U-shaped iron are respectively fixed to the sidewall of the valve body. Through holes are formed in the first U-shaped iron 111 to facilitate the exposure of the air inlet and the air outlet, and allow the free ends of the air inlet and the air outlet 106 to be exposed.

Please refer to fig. 8, which is a schematic structural diagram of an embodiment of a solenoid pump valve module.

A solenoid valve pump valve module 20 comprising: a gas distribution layer 23 comprising: in the electromagnetic valve 10 according to any of the above embodiments, the air inlet of the electromagnetic valve 10 is hermetically connected to the air outlet of the air distribution layer 23.

And the air distribution layer 23 is connected to the output end of the air pump 25 in the module, one end close to the air pump is communicated with each air outlet of the air pump, and one end far away from the air pump is provided with at least one air outlet.

Specifically, for the massage electromagnetic valve pump valve module for the car seat, reference may be made to the structure of the integrated electromagnetic valve air pump module disclosed in patent CN209976974U, and the fast-assembling electromagnetic valve body therein is replaced with the electromagnetic valve 10.

Please refer to fig. 9, which is a schematic structural diagram of an embodiment of a solenoid pump valve module.

The gas distribution layer 23 is also provided with a pressure regulating protrusion 21, and a pressure regulating groove 211 is arranged in the pressure regulating protrusion 21; the bottom of the pressure regulating groove 211 is provided with a pressure regulating hole 212 communicated with the gas distribution layer 23; a relief valve 22 is disposed in the pressure regulating protrusion 21.

In the structure of the module, in order to ensure the stability of gas pressure in the gas distribution layer, the middle part of the gas distribution layer is provided with a pressure regulating protrusion communicated with the inside of the gas distribution layer, an overflow valve with a pressure stabilizing function is arranged in the pressure regulating protrusion, and when the gas pressure of the gas distribution layer is greater than a safety threshold value, gas overflows from the overflow valve so as to recover the gas pressure to the safety threshold value.

In addition, the embodiment also discloses a specific structure of the relief valve, please refer to fig. 10.

The relief valve 22 includes: an overflow column 221 with the bottom entering the pressure regulating hole 212, a limit ring 222 annularly arranged on the outer wall of the overflow column 221, a second elastic element 223 sleeved on the side wall of the overflow column 221 and positioned above the limit ring 222, and a top cover 224 sleeved on the top of the overflow column 221 and provided with a through groove in the center; the sidewall of the overflow column 221 below the limiting ring 222 is sleeved with a second sealing ring 225.

Wherein:

the bottom of the overflow column 221 enters the pressure regulating hole to be fixed, so that the overflow column plays a supporting role and is convenient for installing other elements.

The limiting ring 222 is disposed on the outer wall of the overflow column 221, and divides the overflow column into a first column section located above the limiting ring and a second column section located below the limiting ring.

The side wall of the first column section is sleeved with a second elastic element 223, and the top end of the first column section is sleeved with a top cover 224 with a through groove formed therein. And a pressure regulating gap is arranged between the first column section and the groove wall of the through groove. The bottom of the through groove is clamped with the top of the second elastic element.

The second section is sleeved with a second seal ring 225.

Based on the design, when the air pressure in the air distribution layer does not exceed the threshold value, the limiting ring on the overflow column is in close contact with the second sealing ring under the action of the second elastic element, so that the overflow valve is prevented from leaking air.

When the air pressure in the gas distribution layer exceeds a threshold value, the air flow enters a first gap between the bottom of the overflow column and the pressure regulating hole and jacks up the limiting ring, so that the first gap is communicated with the pressure regulating groove and then is discharged out of the gas distribution layer through the pressure regulating gap, the purpose of pressure regulation is achieved, and the stability of the gas pressure in the gas distribution layer is ensured.

Please refer to fig. 11, which is a schematic structural diagram of an embodiment of a solenoid pump valve module.

Fig. 12 shows a specific structure of the compound solenoid valve. A compound electromagnetic valve 40 is arranged on at least one air outlet of the air distribution layer 23; the compound solenoid valve 40 includes: comprises an air leakage electromagnetic valve 401 and an air inflation electromagnetic valve 402 which are connected in series and are integrally formed by injection molding; the first area 415 of the inflation solenoid valve 402 is connected with the air outlet of the air source; the second position area 417 of the air release solenoid valve 401 is connected with the inflated bag; second location area 417 of charge solenoid valve 402 is connected to first location area 415 of bleed solenoid valve 401; when the inflation solenoid valve 402 is powered on and the deflation solenoid valve 401 is powered off, inflation is realized; when the inflation solenoid valve 402 is powered off and the air release solenoid valve 401 is powered on, air is exhausted through a third position area 418 of the air release solenoid valve 401; the combined type electromagnetic valve is arranged at the top end of the air source and can form the same structure body with the air source. The inflation solenoid valve 402 is a two-position two-way solenoid valve, the second position area 417 of the inflation solenoid valve 402 is used for air inlet to the air release solenoid valve 401, and the first position area 415 of the inflation solenoid valve 402 is used for air inlet of an air source; the air release solenoid valve 401 is a two-position three-way solenoid valve, a second position area 417 of the air release solenoid valve 401 is used for inflating the inflated bag, a third position area 418 of the air release solenoid valve 401 is used for releasing air into the air, and a first position area 415 of the air release solenoid valve 401 is used for receiving the air from the inflation solenoid valve 402; the combined type electromagnetic valve is arranged at the top end of the air source to form the same structure body, so that the purpose of an integrated compact arrangement structure is achieved.

As shown in fig. 12, the lower end of the cavity of the inflation solenoid valve 402 is a first region 415, and the upper end is a second region 417; a silica gel cap 410, a metal valve core 406 and a spring 409 are sequentially arranged in the cavity from bottom to top; when the inflation solenoid valve 402 is powered on, the silica gel cap 410 moves downwards along with the metal valve core 406, the first part area 415 is provided with an air inlet nozzle, the air inlet nozzle is connected with the side wall of the injection molding film core 403 through a second U-shaped iron 411, the air inlet nozzle is connected with the inflation solenoid valve 402 and then connected with an air outlet of an air source to realize an inflation function, and airflow flows through the air release solenoid valve 401 and then enters an inflated bag to realize the inflation function; the same structure as the inflation solenoid valve 402, the left lower end of the cavity of the deflation solenoid valve 401 is a first part area 415, the right lower end is a third part area 418, and the upper end is a second part area 417; a silica gel cap 410, a metal valve core 406 and a spring 409 are sequentially arranged in the cavity from bottom to top; the second part area 417 is provided with an air outlet nozzle, and the side wall of the air outlet nozzle is connected with the side wall of the injection molding film core 403 through a second U-shaped iron 411; when the air release solenoid valve 401 is powered on, the metal valve core 406 of the air release solenoid valve 401 moves upwards, the second part area 417 is communicated with the third part area 418, and the gas in the inflated bag enters from the second part area 417 and then is discharged from the third part area 418, so that air release is realized.

Therefore, according to the technical scheme of the embodiment, inflation and deflation are achieved on the composite electromagnetic valve, when the inflation electromagnetic valve 402 and the deflation electromagnetic valve 401 are turned off simultaneously, the pressure maintaining function can be achieved, the upper shell is arranged outside the composite electromagnetic valve, the composite electromagnetic valve is protected, further, the structure is integrated on the PCB, the integration level of devices is further improved, and the structure and the installation are simplified.

In this embodiment, through the solenoid valve of design two-position two way or two-position three way solenoid valve as aerifing solenoid valve and two-position three way's solenoid valve as the solenoid valve of losing heart, two solenoid valves form a solenoid valve module, have three kinds of operating condition:

1. as shown in fig. 12b, the inflation solenoid valve 402 is powered on, the deflation solenoid valve 401 is powered off, the metal valve core 406 powered on by the inflation solenoid valve 402 moves down, the gas enters the inflation solenoid valve 402 from the gas source through the connecting passage 416, then enters the first position area 415 of the deflation solenoid valve 401 from the second position area 417 of the inflation solenoid valve 402 through the passage of the injection film core 403, and finally enters the inflated bag from the second position area 417 of the deflation solenoid valve 401, so as to realize inflation.

2. As shown in fig. 12a, the inflation solenoid valve 402 is de-energized, the deflation solenoid valve 401 is energized, the metal valve core 406 moves upwards, the connection passage 416 no longer passes through the gas, the gas enters the deflation solenoid valve 401 from the inflated bag, passes through the second region 417 of the deflation solenoid valve 401, and is then discharged from the third region 418 of the deflation solenoid valve 401, so as to realize deflation.

3. As shown in FIG. 12, the charge solenoid valve 402 is de-energized and the bleed solenoid valve 401 is de-energized; the gas cannot enter the air escape solenoid valve 401, and the air pressure in the inflated bag is kept.

In addition, regarding the specific structure of the compound solenoid valve, the structure disclosed in CN110822133A can also be referred to.

Please refer to a schematic three-dimensional structure diagram of the solenoid valve pump valve module shown in fig. 13, wherein: the number of the electromagnetic valves 10 is 4; the number of the compound electromagnetic valves is two.

Please refer to fig. 14, which is a schematic perspective view of an embodiment of an integrated two-in-one tandem solenoid valve.

Integral type two ally oneself with serial-type solenoid valve includes: the electromagnetic valve comprises a gas distribution piece 20 and electromagnetic valves 10 which are symmetrically distributed on two sides of the gas distribution piece 20 and are described in any one embodiment; the bottom of the air distribution piece 20 is provided with an air inlet hole 201, and two ends of the air distribution piece are provided with exhaust holes 202 communicated with the air inlet hole 201; the exhaust holes 202 are respectively connected with the air inlets of the solenoid valves 10.

The air distribution piece is used for distributing air flow entering from the air inlet hole, discharging the air flow from the two air outlet holes respectively, and entering the electromagnetic valve in any one of the embodiments to form the integrated two-connection serial electromagnetic valve provided by the embodiment.

Please refer to fig. 15, which is a schematic structural diagram of an embodiment of an integrated two-in-series solenoid valve, wherein the solenoid valve is powered on, and the direction indicated by the arrow is a gas flow direction.

Please refer to fig. 16, which is a schematic structural diagram of an embodiment of an integrated two-in-series solenoid valve, wherein the solenoid valve is in an unpowered state, and a direction indicated by an arrow is a gas flow direction.

Compared with the prior art, the integrated two-in-one tandem solenoid valve in the embodiment combines the two solenoid valves in any one of the above embodiments, so that the two air bags can be inflated and deflated simultaneously. In addition, the electromagnetic valves on two sides of the integrated two-connection serial electromagnetic valve adopt the structure of any one of the above embodiments, the electromagnetic valves are inflated and deflated to the same side, and the central air intake can simultaneously complete the inflation and deflation functions of different massage air bags on two sides respectively, so that the structure miniaturization and the assembly simplification are realized.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A solenoid valve (10), characterized in that: the method comprises the following steps: a valve body (101); an electromagnetic coil (109) is annularly arranged on the side wall of the valve body (101); an air distribution cavity (102) is arranged in the valve body (101), and an air inlet and an air outlet are respectively arranged at two ends of the air distribution cavity (102); an air exchanging piece (103) is fixedly connected to the inner wall of the air outlet, and a first gap (104) is formed between the air exchanging piece (103) and the air outlet;

the top of the air exchange piece (103) is provided with an inflation opening (105), and the side wall of the air exchange piece, which is far away from the first gap (104), is provided with an inflation hole communicated with the inflation opening (105); the bottom of the air exchange piece (103) is provided with an air release hole communicated with the first gap (104), and the side wall of the air exchange piece on the same side as the first gap (104) is provided with a curved convex edge (114) for preventing the first gap (104) from being communicated with the air distribution cavity (102);

a valve core (107) arranged in the air distribution cavity (102) is arranged below the air exchange piece (103); the first elastic element (108) is sleeved on the air exchange piece (103) and the valve core (107) together; by switching the state of the solenoid 109 between on and off, the clearance between the breather piece 103 and the valve body 107 can be adjusted.

2. A solenoid valve according to claim 1, wherein:

the exhaust port edge is provided with a curved mounting groove (110) and the air exchange piece (103) is annularly provided with a mounting plate (111) matched and connected with the mounting groove (110).

3. A solenoid valve according to claim 1 or 2, wherein:

the outer wall of the valve body (101) is annularly provided with an accommodating cavity (112), and an electromagnetic coil (109) is wound in the accommodating cavity (112).

4. A solenoid valve according to claim 3, wherein: a first stop groove (1031) and a second stop groove (1071) are respectively arranged on the outer wall of the air exchange piece (103) and the outer wall of the valve core (107) in a surrounding manner; two ends of the first elastic element (108) are respectively clamped in the first stop groove (1031) and the second stop groove (1071).

5. A solenoid valve according to claim 1 or 2, wherein: further comprising: a first U-shaped iron (113) longitudinally arranged on the valve body in a spanning manner; the first U-shaped iron (113) is provided with a through hole which allows the air inlet and the free end of the air exchange piece (103) to be exposed.

6. A solenoid valve pump valve module, comprising: a gas distribution layer (23), characterized in that: the method comprises the following steps: the solenoid valve (10) of any of claims 1 to 5, an inlet of the solenoid valve (10) being sealingly connected to an outlet of the gas distribution layer (23).

7. The solenoid valve pump valve module of claim 6, wherein: the gas distribution layer (23) is also provided with a pressure regulating protrusion (21), and a pressure regulating groove (211) is arranged in the pressure regulating protrusion (21); the bottom of the pressure regulating groove (211) is provided with a pressure regulating hole (212) communicated with the gas distribution layer (23); an overflow valve (22) is arranged in the pressure regulating protrusion (21).

8. The solenoid valve pump valve module of claim 7, wherein: the relief valve (22) includes: the overflow column (221) with the bottom entering the pressure regulating hole (212), a limiting ring (222) annularly arranged on the outer wall of the overflow column (221), a second elastic element (223) sleeved on the side wall of the overflow column (221) and positioned above the limiting ring (222), and a top cover (224) sleeved on the top of the overflow column (221) and provided with a through groove in the center; and a sealing ring (225) is sleeved on the side wall of the overflow column (221) positioned below the limiting ring (222).

9. The solenoid valve pump valve module of claim 6, wherein: a compound electromagnetic valve (40) is arranged on at least one air outlet of the air distribution layer (23); the compound solenoid valve (40) comprises: an air leakage solenoid valve (401) and an air inflation solenoid valve (402) which are connected in series and are integrally formed by injection molding; the first area (415) of the inflation solenoid valve (402) is connected with an air outlet of an air source; the second position area (417) of the air release solenoid valve (401) is connected with an inflated bag; the second location area (417) of the charge solenoid (402) is connected to the first location area (415) of the bleed solenoid (401); when the inflation solenoid valve (402) is powered on and the deflation solenoid valve (401) is powered off, inflation is realized; when the inflation solenoid valve (402) is powered off and the air leakage solenoid valve (401) is powered on, air is exhausted through a third position area (418) of the air leakage solenoid valve (401).

10. Integral type two ally oneself with serial-type solenoid valve, its characterized in that: the method comprises the following steps: -a gas distribution member (20) and solenoid valves (10) according to any one of claims 1 to 5 symmetrically distributed on both sides of said gas distribution member (20); an air inlet hole (201) is formed in the bottom of the air distribution piece (20), and exhaust holes (202) communicated with the air inlet hole (201) are formed in two ends of the air distribution piece; the exhaust holes (202) are respectively connected with the air inlets of the electromagnetic valves (10).