CN110822133A - A composite solenoid valve, pump valve module and car seat - Google Patents

Abstract

The application discloses a combined type solenoid valve, a pump valve module and an automobile seat, which comprise an air leakage solenoid valve and an air inflation solenoid valve which are connected in series and integrally formed in an injection molding mode; the first position area of the inflation electromagnetic valve is connected with an 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 deflation electromagnetic valve is powered off, inflation is realized; when the inflation solenoid valve is powered off and the air leakage solenoid valve is powered on, the air is exhausted through a third position area of the air leakage solenoid valve; the combined type electromagnetic valve is arranged at the top end of the air source to form the same structure body. Make an air supply can realize the different control to multichannel gasbag through above-mentioned solenoid valve module, still increased the atmospheric pressure in the gasbag simultaneously and kept the function, compact structure, easily installation, the function is stable, can realize the cooperation of multiunit.

Description

A composite solenoid valve, pump valve module and car seat

technical field

The application relates to the field of composite solenoid valves, in particular to a composite solenoid valve, a pump valve module and a car seat.

Background technique

In the pneumatic support, pneumatic massage, pneumatic adjustment and other systems of the seat in the prior art, the solenoid valve group installed on each air bag for controlling inflation and deflation is usually as follows: air source - one-way valve - two-position three-way Solenoid valve-air bag; the one-way valve can only be opened when inflating. When inflating, the one-way valve is opened, the solenoid valve is powered off, the air source is opened, and the air path gradually enters the air bag.

In the above control method, when multiple airbags are connected to one air source at the same time, these airbags can only be deflated and inflated at the same time; therefore, in the use of the seat, one or two airbags with the same function are often shared with one air source.

SUMMARY OF THE INVENTION

In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a composite solenoid valve type pump-valve module for an automobile seat, so that one air source can realize different control of multiple air bags.

According to the technical solutions provided by the embodiments of the present application, a composite solenoid valve includes a deflation solenoid valve and an inflation solenoid valve that are connected in series and integrally injection-molded; the first part region of the inflation solenoid valve is connected to an air outlet of an air source ; the second part area of the deflation solenoid valve is connected to the inflated bag; the second part area of the inflatable solenoid valve is connected to the first part area of the deflation solenoid valve; the inflatable solenoid valve is powered on, the When the deflation solenoid valve is powered off, inflation is realized; when the gas deflation solenoid valve is powered off, and the deflation solenoid valve is powered on, exhaust is realized through the third part area of the deflation solenoid valve.

According to the technical solutions provided by the embodiments of the present application, the second part region of the inflation solenoid valve is located at the structural connection part in the middle of the composite solenoid valve, and it is connected to the first part region of the deflation solenoid valve and is connected with the first part region of the deflation solenoid valve. Axially staggered and connected by an injection-molded film core; a three-way port is opened in the injection-molded film core; one end of the three-way port is connected to the second part of the inflatable solenoid valve, and one end is connected to the air release solenoid valve. The first part area is connected, and the other end is sealed by the sealing ball.

According to the technical solutions provided by the embodiments of the present application, the intake solenoid valve is a two-position two-way solenoid valve or a two-position three-way solenoid valve, and the air discharge solenoid valve is a two-position three-way solenoid valve.

According to the technical solution provided by the embodiment of the present application, an air intake nozzle is installed in the first part region of the inflatable solenoid valve, and the air intake nozzle is connected to the side wall of the injection molding film core through a U-shaped iron.

According to the technical solutions provided by the embodiments of the present application, an air outlet nozzle is installed in the third part area of the air release solenoid valve, and the side wall of the air outlet nozzle is connected to the side wall of the injection molding film core through a U-shaped iron.

According to the technical solutions provided in the embodiments of the present application, the metal valve core of the inflating solenoid valve and/or the deflation solenoid valve is one of a flat type and a spline type.

In a second aspect, the present application provides a pump valve module, including an air pump; each air outlet of the air pump is installed with the composite solenoid valve; The air outlet of the air pump is communicated; the number of the composite electromagnetic valve is at least one, and it is integrated and installed in a casing integrally formed with the air pump.

According to the technical solutions provided by the embodiments of the present application, a pressure sensor is further included; the pressure sensor is installed in the air path of the pump-valve module or inside the composite solenoid valve.

In a third aspect, the present application provides an automobile seat. The air source of the lumbar support and/or the side wing support structure of the automobile seat is provided by the pump valve module.

To sum up, the beneficial effects of the present application:

1. The charging solenoid valve of the composite solenoid valve of this technical solution is powered on, the deflation solenoid valve is powered off, the charging solenoid valve is powered on and the spool moves down to realize inflation; the charging solenoid valve is powered off, the vent solenoid valve is powered on, and the vent solenoid valve is powered on The valve core moves up to realize air deflation; the inflating solenoid valve is powered off, and the deflation solenoid valve is powered off to maintain the air pressure in the air bag. One air source can realize different control of multiple air bags through the above-mentioned composite solenoid valve, and meanwhile, the function of maintaining air pressure in the air bags is also added.

2. This composite solenoid valve can be set up with one or more installed in parallel on the upper part of the air pump to form a pump valve module with the air pump. It has a compact structure, is easy to install, has stable functions, and can realize the cooperation of multiple groups.

Description of drawings

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

Fig. 1 is the structural representation of the pressure-holding state of the composite solenoid valve in the application;

Fig. 2 is the structural representation of the pump-valve module in the application;

Fig. 3 is the structural representation of embodiment 1 in this application;

Fig. 4 is the structural representation of embodiment 2 in this application;

5 is a cross-sectional view of a metal valve core in the application;

FIG. 6 is a schematic structural diagram of a composite solenoid valve when connecting channels are used in the present application.

Symbols in the figure: air release solenoid valve-1; inflation solenoid valve-2; injection membrane core-3; air pump-4; pressure sensor-5; metal valve core-6; air nozzle-7; skeleton-8; spring-9; Silicone cap-10; U-shaped iron-11; sealing ball-12; upper shell-13; PCB board-14; first part area-15; connecting channel-16; second part area-17; third part area-18 .

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related invention, rather than limit the invention. In addition, it should be noted that, for the convenience of description, only the parts related to the invention are shown in the drawings.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Example 1

Please refer to FIG. 1 . A composite solenoid valve provided in this embodiment includes a deflation solenoid valve 1 and an inflation solenoid valve 2 that are connected in series and are integrally injection-molded; The second part area 17 of the deflation solenoid valve 1 is connected to the inflated bag; the second part area 17 of the inflation solenoid valve 2 is connected to the first part area 15 of the deflation solenoid valve 1; When the inflatable solenoid valve 2 is powered on and the deflation solenoid valve 1 is powered off, inflation is realized; when the inflatable solenoid valve 2 is powered off and the deflation solenoid valve 1 is powered on, exhaust is realized through the third part area 18 of the deflation solenoid valve 1 . gas; the composite solenoid valve is placed at the top of the gas source, and can form the same structure with the gas source. Among them, the charging solenoid valve 2 is a two-position two-way solenoid valve, the second part area 17 of the charging solenoid valve 2 is used for air intake to the deflation solenoid valve 1, and the first part area 15 of the charging solenoid valve 2 is used to let the air source enter The deflation solenoid valve 1 is a two-position three-way solenoid valve, the second part area 17 of the deflation solenoid valve 1 is used to inflate the inflated bag, and the third part area 18 of the deflation solenoid valve 1 is used to deflate into the air , the first part area 15 of the deflation solenoid valve 1 is used to receive the gas from the inflation solenoid valve 2; the composite solenoid valve is placed at the top of the gas source to form the same structure, so as to achieve the purpose of an integrated and compact arrangement.

Wherein, the first part area 15 of the air leakage solenoid valve 1 is the air inlet of the air leakage electromagnetic valve 1, the second part area 17 of the air leakage electromagnetic valve 1 is the air outlet of the air leakage electromagnetic valve 1, and the air leakage electromagnetic valve 1 The third part area 18 of 1 is the deflation port of the deflation solenoid valve 1; the first part area 15 of the inflatable solenoid valve 2 is the air inlet of the inflatable solenoid valve 2; the second part area 17 of the inflatable solenoid valve 2 It is the air outlet of the charging solenoid valve 2; here, the type of the air source, optionally, the air pump, the air source of the vehicle body, or other components that can be used as the air source.

The second part region 17 of the inflation solenoid valve 2 is located at the structural connection part in the middle of the composite solenoid valve, and it is connected to the first part region 15 of the deflation solenoid valve 1 and is axially staggered from it, and is passed through. The injection molding film core 3 is connected; the injection molding film core 3 is provided with a three-way port; One site area 15 is connected and the other end is sealed by the sealing ball 12 . Among them, since the second part area 17 of the inflatable solenoid valve 2 and the air release solenoid valve 1 are axially staggered, only the injection mold core 3 with a tee port can be used for bridge connection between the two, and the bridge generates redundant air holes. The plug is installed by the interference fit of the sealing ball 12.

Here, the second site area 17 of the inflation solenoid valve 2 and the first site region 15 of the deflation solenoid valve 1 can also be connected through the connecting channel 16, and then connected in place of the three-way port, so that the second site region 17 of the inflation solenoid valve 2 It is directly communicated with the first part area 15 of the deflation solenoid valve 1 , which can simplify the structure. In other embodiments, other connecting components can also be used to connect the inflation solenoid valve 2 and the deflation solenoid valve 1 .

An air inlet nozzle is installed in the first part area 15 of the inflatable solenoid valve 2 , and the air inlet nozzle is connected to the side wall of the injection molded film core 3 through the U-shaped iron 11 . An air outlet nozzle is installed in the third part area 18 of the air release solenoid valve 1 , and the side wall of the air outlet nozzle is connected to the side wall of the injection molding film core 3 through the U-shaped iron 11 . Wherein, the air inlet nozzle of the inflating solenoid valve 2 is used to connect the air outlet of the air source, and the air outlet nozzle of the inflating electromagnetic valve 2 is used to connect the inflated bag. The U-shaped iron 11 not only connects the air outlet nozzle and the air inlet nozzle with the skeleton 8 of the composite solenoid valve, but also has the effect of increasing the magnetic field.

The metal valve core 6 of the inflating solenoid valve 2 and/or the deflation solenoid valve 1 is one of a flat type and a spline type. There is a gap between the flat or splined metal valve core 6 and the solenoid valve housing, and the gap serves as an air passage between the first and second regions of the solenoid valve.

As shown in FIG. 1 , the lower end of the cavity of the inflatable solenoid valve 2 is the first part area 15, and the upper end is the second part area 17; the cavity is provided with a silicone cap 10, a metal valve core 6, and a spring 9 in sequence from bottom to top; When the charging solenoid valve 2 is powered on, the silicone cap 10 moves down with the metal valve core 6 , and the first part area 15 is installed with an air intake nozzle, which passes through the U-shaped iron 11 and the side wall of the injection molded film core 3 . Connection, the air intake nozzle is connected with the inflation solenoid valve 2, and then connected to the air outlet of the air source to realize the inflation function. The air flows through the deflation solenoid valve 1, and then enters the inflated bag to realize the inflation function; Similarly, the lower left end of the cavity of the air leakage solenoid valve 1 is the first part area 15, the lower right end is the third part area 18, and the upper end is the second part area 17; the cavity is sequentially provided with a silicone cap 10, metal The valve core 6, the spring 9; the third part area 18 is equipped with an air outlet, and the side wall of the air outlet is connected to the side wall of the injection film core 3 through the U-shaped iron 11; when the air leakage solenoid valve 1 is powered on, the air leakage electromagnetic valve The metal valve core 6 of 1 moves upward, the second part area 17 and the third part area 18 are connected, and the gas in the inflatable bag enters from the second part area 17 and then is discharged from the third part area 18 to realize air deflation;

Therefore, the technical solution of this embodiment not only realizes inflation and deflation on a composite solenoid valve, but also realizes the pressure maintaining function when the inflation solenoid valve 2 and the deflation solenoid valve 1 are turned off at the same time. There is also an upper shell 13 on the outside of the device, which protects the composite solenoid valve. Further, this structure is integrated on a PCB board 14, which further improves the integration of the device and simplifies the structure and installation.

The specific working steps are as follows:

In this technical solution, by designing a two-position two-way solenoid valve or a two-position three-way solenoid valve as an inflation solenoid valve and a two-position three-way solenoid valve as a degassing solenoid valve, the two solenoid valves form a solenoid valve module, which has Three working states:

1. As shown in Figure 3, in Example 1, the inflatable solenoid valve 2 is powered on, the degassing solenoid valve 1 is powered off, the inflatable solenoid valve 2 is energized and the metal valve core 6 moves down, and the gas enters the inflatable solenoid valve through the connecting channel 16 from the gas source. 2. Then, the second part area 17 of the inflatable solenoid valve 2 enters the first part area 15 of the deflation solenoid valve 1 through the channel of the injection membrane core 3, and finally enters the inflated air from the second part area 17 of the deflation solenoid valve 1. bag to achieve inflation;

2. As shown in FIG. 4 , in Example 2, the inflating solenoid valve 2 is powered off, the deflation solenoid valve 1 is powered on, the deflation solenoid valve 1 is powered on, and the metal spool 6 moves up, the connecting channel 16 no longer passes through the gas, and the gas is inflated by the gas. The bag enters the deflation solenoid valve 1, passes through the second part area 17 of the air deflation solenoid valve 1, and is then discharged from the third part area 18 of the air deflation solenoid valve 1 to realize air deflation;

3. As shown in Figure 1, the inflation solenoid valve 2 is powered off, and the deflation solenoid valve 1 is powered off; the gas cannot enter the deflation solenoid valve 1, so that the air pressure in the inflated bag is maintained.

Embodiment 2

As shown in FIG. 2 , a pump valve module provided in this embodiment includes an air pump 4; each air outlet of the air pump 4 is installed with a composite solenoid valve in the first embodiment; the inflatable solenoid valve The first area 15 of inside the casing. In other embodiments, the number of composite solenoid valves may be other values set according to requirements.

Preferably, a pressure sensor 5 is installed in the air path of the pump-valve module, and the pressure sensor 5 is installed in the air path of the pump-valve module or installed inside the composite solenoid valve. The pressure sensor 5 monitors the gas circuit system to realize more complex control. The installation position of the pressure sensor 5 can be selected in any of the following ways:

1. It is installed on the air path of the air pump supplying air to all the composite solenoid valves, and is used to detect the air pressure of the air pump;

2. It is installed on the air path between the composite solenoid valve and the inflated bag. At this time, the number of pressure sensors 5 is the same as the number of the composite solenoid valve, which are respectively used to monitor the pressure in the inflated bag;

3. The pressure sensor 5 is installed on the gas path of the air pump supplying all the composite solenoid valves and the gas path of the composite solenoid valve and the inflated bag at the same time; at this time, the air pressure of each gas path in the entire pump valve module can be comprehensively checked. monitoring.

Embodiment 3

This embodiment provides a car seat, the air source of the lumbar support and/or the side wing support structure of the car seat is provided by the pump valve module in Embodiment 2, the lumbar support and/or the air source of the car seat is provided by the pump valve module The airbags of the flank support structure are inflated or deflated by the composite solenoid valve, and the car seat in this embodiment realizes different adjustment and control of multiple airbags.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principles and other solutions. At the same time, the scope of the invention involved in this application is not limited to the technical solution formed by the specific combination of the above-mentioned technical features, and should also include the above-mentioned technical features or their equivalents without departing from the concept of the invention. Other technical solutions formed by any combination. For example, a technical solution is formed by replacing the above-mentioned features with the technical features disclosed in this application (but not limited to) with similar functions.

Claims (9)

1. A composite solenoid valve, characterized in that it comprises a degassing solenoid valve (1) and an inflating solenoid valve (2) connected in series and integrally injection-molded; the first part region (15) of the inflating solenoid valve (2) ) is connected to the air outlet of the air source; the second part region (17) of the deflation solenoid valve (1) is connected to the inflated bag; the second part region (17) of the inflation solenoid valve (2) is connected to the The first part area (15) of the air deflation solenoid valve (1); the inflation solenoid valve (2) is powered on and the air deflation solenoid valve (1) is powered off to realize inflation; the inflation solenoid valve (2) is turned off When the air leakage solenoid valve (1) is powered on, exhaust is realized through the third part region (18) of the air leakage electromagnetic valve (1). 2 . The composite solenoid valve according to claim 1 , wherein the second part region ( 17 ) of the inflatable solenoid valve ( 2 ) is located at the structural connection part in the middle of the composite solenoid valve, and its is connected to the first part area (15) of the air leakage solenoid valve (1) and is axially staggered therefrom, and is connected through an injection-molded membrane core (3); the injection-molded membrane core (3) is provided with a three-way port; the One end of the three-way port is connected to the second part region (17) of the inflation solenoid valve (2), one end is connected to the first part region (15) of the deflation solenoid valve (1), and the other end is 12) Seal. 3. The composite solenoid valve according to claim 1, characterized in that, the inflating solenoid valve (2) is a two-position two-way solenoid valve or a two-position three-way solenoid valve, and the degassing solenoid valve (1) is a 2/3-way solenoid valve. 4. The composite solenoid valve according to claim 1, characterized in that, the first part region (15) of the charging solenoid valve (1) is provided with an air intake nozzle, and the air intake nozzle passes through a U-shaped iron ( 11) Connect with the side wall of the injection molded film core (3). 5 . The composite solenoid valve according to claim 2 , wherein an air outlet nozzle is installed in the third part region ( 18 ) of the air release electromagnetic valve ( 1 ), and the side wall of the air outlet nozzle passes through the U-shaped iron. 6 . (11) is connected to the side wall of the injection-molded film core (3). 6 . The composite solenoid valve according to claim 2 , wherein the metal valve core ( 6 ) of the inflating solenoid valve ( 2 ) and/or the deflation solenoid valve ( 1 ) is a flat type or a spline type. 7 . a kind of. 7. A pump-valve module, characterized in that it comprises an air pump (4); each air outlet of the air pump (4) is provided with a composite solenoid valve according to any one of claims 1 to 5; The first part area (15) of the air charging solenoid valve (2) is communicated with the air outlet of the air pump (4); the number of the composite solenoid valve is at least one, and it is integrally installed with the air pump (4). 4) In the integrally formed shell. 8 . The pump-valve module according to claim 6 , further comprising a pressure sensor ( 5 ); the pressure sensor ( 5 ) is installed in the gas path of the pump-valve module or installed in the Inside the composite solenoid valve. 9 . An automobile seat, characterized in that, the air source of the lumbar support and/or the side wing support structure of the automobile seat is provided by the pump-valve module according to claim 7 or 8 .

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