Electromagnetic valve and automobile seat

Abstract

The utility model discloses an electromagnetic valve and an automobile seat, which comprises a valve body with an air outlet at one end, and an air outlet channel capable of being communicated with the air outlet is arranged on the valve body; the valve element comprises an iron column and an iron core, and when an air inlet channel in the bottom of the iron core is not communicated with an air source, the air inlet channel is not communicated with the interior of the iron core. The shell is arranged outside the valve body, the top end of the shell is in sealed connection with a clamping groove in the valve body, and the bottom is clamped with a middle groove in the outer wall of the middle of the iron core; the electromagnetic part is arranged on the outer side of the valve body, when the electromagnetic part is powered on, the iron column moves to the first position, and the air outlet communicates with the air outlet channel; when the electromagnetic part is powered off, the iron column is far away from the first position, the air outlet channel is not communicated with the air outlet, and if the air inlet channel is communicated with an air source and the air inlet channel is communicated with the interior of the iron core, air in the air source can enter the interior of the iron core and enter the air outlet through a channel between the inner wall of the valve body and the outer wall of the iron column; the utility model has the advantages of simple structure, small volume and good air tightness, and can be applied to narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a electromagnetic valve and a car seat. Background Art

[0002] With the increase in the number of cars and the improvement of people's living standards, more and more attention is paid to the driving comfort of cars. Among them, the lumbar support structure and massage function of the seat are important functions of car comfort.

[0003] As for the lumbar support and massage functions, pneumatic methods are generally used to achieve and control them, so the existence of a solenoid valve is indispensable. The more sensitive the solenoid valve is, the easier and more perfect the massage and lumbar support functions are. Although there are many types of existing solenoid valve structures, the current solenoid valves have the problem of poor air tightness and are limited in use in small spaces. Utility Model Content

[0004] The utility model aims to provide a solenoid valve and a car seat to solve the problems existing in the above-mentioned prior art, with simple structure, small volume, good air tightness, and can be applied to narrow spaces.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a solenoid valve, comprising:

[0007] A valve body, wherein an air outlet is provided at one end of the valve body, and an air outlet channel is provided on the valve body, and the air outlet channel can be communicated with the air outlet;

[0008] A valve core, comprising an iron column and an iron core, wherein the iron column is movably arranged in the valve body and is located below the air outlet of the valve body, the iron core is arranged below the iron column, and the upper part of the iron core is located in the valve body, the inner wall of the bottom of the valve body and the outer wall of the upper part of the iron core are sealed, and an air inlet channel is arranged at the bottom of the iron core, and when the air inlet channel is not connected to the air source, the air inlet channel is not connected to the inside of the iron core;

[0009] The outer shell is arranged outside the valve body, the top of which is sealed and connected with the clamping groove on the valve body, and the bottom of which is clamped with the middle groove of the outer wall of the middle part of the iron core;

[0010] The electromagnetic part is arranged on the outside of the valve body. When the electromagnetic part is energized, the iron column moves to the first position, at which time the air outlet and the air outlet channel are connected; when the electromagnetic part is de-energized, the iron column moves away from the first position, at which time the air outlet channel and the air outlet are not connected, and at this time if the air inlet channel is connected to the air source, the air inlet channel is connected to the inside of the iron core, and the gas in the air source can enter the inside of the iron core, and after flowing out of the outlet at the top of the iron core, enter the air outlet through the channel between the inner wall of the valve body and the outer wall of the iron column.

[0011] Optionally, the iron core is fixedly sealed and arranged below the iron column. A sealing piece is movably provided in the iron core, and the sealing piece can close the air inlet channel at the bottom of the iron core. The top of the sealing piece is abutted against a first elastic piece, and one end of the first elastic piece away from the sealing piece is fixedly abutted against the bottom of a boss on the inner wall of the iron core. The top of the boss on the inner wall of the iron core is fixedly abutted against a second elastic piece, and the top of the second elastic piece is connected to the bottom of the iron column. When the electromagnetic part is energized, the iron column can move away from the valve body.

[0012] Optionally, the first elastic member is a first spring, the second elastic member is a second spring, one end of the second spring is connected to the iron column, and the other end is fixedly abutted against the top of the boss on the inner wall of the iron core, and one end of the first spring is connected to the sealing member, and the other end is fixedly abutted against the bottom of the boss on the inner wall of the iron core.

[0013] Optionally, the sealing member is a rubber member, a positioning groove is formed at one end of the rubber member, one end of the first elastic member is arranged in the positioning groove, an arc-shaped sealing boss is formed on the outer wall of the rubber member near the positioning groove, and a sealing seat is formed on the inner wall of the iron core near the air inlet channel. When the air inlet channel is not connected to the air source, the sealing boss abuts against the sealing seat, and at this time, the air inlet channel at the bottom of the iron core is not connected to the internal channel of the iron core.

[0014] Optionally, the electromagnetic part includes an electromagnetic coil, one end of the electromagnetic coil is connected to a pin, and the pin is used for an external power supply; the electromagnetic coil is located outside the valve body.

[0015] Optionally, a rectangular surface is formed on the side wall of the iron column, and a gap between the rectangular surface and the inner wall of the shell is used for gas circulation.

[0016] Optionally, the shell is fixedly disposed outside the electromagnetic coil.

[0017] Optionally, silicone pads are respectively embedded at both ends of the iron column, the silicone pad at one end of the iron column abuts against the second elastic member, and the silicone pad at the other end can block the connecting port between the air outlet channel and the air outlet.

[0018] The utility model also provides a working method of a solenoid valve, comprising the following steps:

[0019] Step 1: When the gas source is not working, no gas enters, the first spring is not deformed, the rubber piece blocks the air inlet channel of the iron core so that it is not connected with the inside of the iron core, the pin is connected to the power supply, the electromagnetic coil is magnetized, the iron column moves downward, the air outlet channel is connected with the air outlet, and the gas in the gas storage part connected to the air outlet flows through the air outlet channel to discharge the gas;

[0020] Step 2: Open the air source, and the gas enters from the air inlet channel at the lower end of the iron core, pushing up the first spring to deform it, and the rubber part moves up to open the air inlet channel, so that it is connected with the inside of the iron core. The gas flows into the iron core and circulates through the channel where the first spring and the second spring are located, and passes through the gap between the iron column and the valve body to fill the gas storage part connected to the air outlet. At the same time, the pin is not energized, and the second spring pushes up to move the iron column up to block the air outlet channel, so that the air outlet channel is not connected with the air outlet, so as to prevent the gas from flowing out and meet the pressure maintenance requirement.

[0021] The utility model also provides a car seat, comprising a seat body and the solenoid valve as described in the above scheme; an air bag is arranged in the seat body, the air inlet of the air bag is connected to the air outlet end of the solenoid valve, and the gas in the air source can enter the air bag through the air inlet.

[0022] On this basis, the utility model can also provide a car using the seat.

[0023] Compared with the prior art, the utility model has achieved the following technical effects:

[0024] The solenoid valve provided by the utility model has a simple structure, a compact design, a small size, can be used in a narrow space, and the solenoid valve of the utility model has lower noise. The solenoid valve of the utility model uses electromagnetic force to drive the valve core to move, realizes the sealing of the valve body, has good air tightness, can adapt to the working environment of large flow and small flow, and can ensure no air leakage and no air cross-talk under the working conditions of -25 degrees to 65 degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure decomposition of the solenoid valve of the utility model;

[0027] Figure 2 This is a schematic diagram of the solenoid valve of the utility model when discharging gas in an air bag;

[0028] Figure 3 This is a schematic diagram of the solenoid valve of the utility model when inflating air into an air bag;

[0029] Figure 4 This is a schematic diagram of the plugging state of the iron core of the utility model;

[0030] Figure 5 This is a schematic diagram of the utility model showing the iron core in an open state;

[0031] Figure 6 This is a schematic diagram of the iron column of the utility model;

[0032] Figure 7 This is a top view of the iron column of the utility model;

[0033] Figure 8 This is a schematic diagram of the valve body structure of the utility model.

[0034] Explanation of the reference numerals: 1-valve body, 2-electromagnetic coil, 3-iron column, 4-first spring, 5-iron core, 6-housing, 7-rubber part, 8-silicone pad, 9-air inlet channel, 10-air outlet, 11-air outlet channel, 12-air bag, 13-sealing boss, 14-sealing seat, 15-pin pin, 16-air source, 17-second spring, 18-middle groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] The utility model aims to provide a solenoid valve and a car seat to solve the problems existing in the above-mentioned prior art, with simple structure, small volume, good air tightness, and can be applied to narrow spaces.

[0037] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] refer to Figures 1 to 8As shown, the utility model provides a solenoid valve, including a valve body 1, an air outlet 10 is provided at the upper end of the valve body 1, an air outlet channel 11 is opened at one end of the valve body 1 close to the air outlet 10, and a connecting port is provided between the air outlet channel 11 and the air outlet 10; the lower part of the valve body 1 is similar to a cylindrical structure with an opening at the bottom, in which a valve core is provided, and the valve core includes an iron column 3 and an iron core 5, the iron column 3 is arranged inside the valve body 1, the iron core 5 is arranged at the bottom of the iron column 3, the upper part of the iron core 5 is located in the valve body 1, and the inner side wall of the bottom of the valve body 1 and the outer side wall of the upper part of the iron core 5 are formed by The sealing ring and other structures are sealed and connected to avoid air leakage. The middle and lower parts of the iron core 5 are located outside the valve body 1; the valve body 1 is provided with an electromagnetic part, and the electromagnetic part is provided with a shell 6. The shell 6 of the utility model is an iron shell, the top of which is sealed and connected with the card groove on the valve body 1, and the bottom is clamped with the middle groove 18 of the outer wall of the middle part of the iron core 5. The bottom of the iron core 5 is provided with an air inlet channel 9, and a plugging piece is movably provided in the iron core 5. The plugging piece can close the air inlet channel 9 at the bottom of the iron core 5 so that it is not connected with the inside of the iron core 5. The top of the plugging piece abuts against a first elastic Spring 4, one end of the first spring 4 away from the blocking piece is fixedly abutted against the bottom of the boss on the inner wall of the iron core 5, the top of the boss on the inner wall of the iron core 5 is fixedly abutted against the second spring 17, the top of the second spring 17 is connected to the bottom of the iron column 3, the electromagnetic part includes an electromagnetic coil 2, one end of the electromagnetic coil 2 is connected to a pin 15, the pin 15 is used for an external power supply; the electromagnetic coil 2 is located outside the valve body 1, and after the electromagnetic coil 2 is energized, under the action of electromagnetic induction, the iron column 3 can move up and down in the electromagnetic coil 2 along the center line direction of the valve body 1. When the air inlet channel 9 is not connected to the air source and the electromagnetic part is not energized, the air inlet channel 9, the air outlet 10 and the air outlet channel 11 are all not connected; when the electromagnetic coil 2 is energized, the iron column 3 moves downward to the first position, at which time the air outlet 10 and the air outlet channel are connected; when the air inlet channel 9 is connected to the air source, the gas in the air source 16 can enter the interior of the iron core 5 through the air inlet channel 9, flow through the channel of the spring set inside the iron core 5, and after flowing out from the channel opening at the top of the channel, enter the air outlet 10 through the channel between the outer wall of the iron column 3 and the inner wall of the valve body 1.

[0039] like Figure 4 and Figure 5 As shown, in order to make the solenoid valve lighter as a whole and have better air tightness, the sealing member of the utility model adopts a rubber member 7, a positioning groove is opened at one end of the rubber member 7, one end of the first spring 4 is arranged in the positioning groove, and an arc-shaped sealing boss 13 is provided on the outer wall of the rubber member 7 near the positioning groove, and a sealing seat 14 is provided on the inner wall of the iron core 5 near the channel opening. When the sealing boss 13 abuts against the sealing seat 14, there is no air source connected. At this time, the air inlet channel 9 is not connected to the inside of the iron core 5.

[0040] In order to allow the gas to flow smoothly in the valve body 1, a rectangular surface is opened on the side wall of the iron column 3, and the gap between the rectangular surface and the inner wall of the valve body 1 is used for gas circulation. The gas enters the gas outlet 10 through the smooth gaps at both ends.

[0041] In a specific embodiment, if Figure 6 and Figure 7 As shown, silicone pads 8 are respectively embedded in the grooves at both ends of the iron column 3. The grooves can effectively prevent the silicone pad 8 from falling off when moving up and down and expanding and contracting due to heat and cold. The silicone pad 8 at one end of the iron column abuts against the second spring 17, and the silicone pad 8 at the other end can block the connecting port between the air outlet channel and the air outlet 10, with good sealing performance.

[0042] The utility model also provides a working method of a solenoid valve, such as Figure 2 and Figure 3 As shown, Figure 2 The middle line is the exhaust route. Figure 3 The middle line is the inflation route, and its principle is:

[0043] When the gas source 16 is not working, no gas enters, the first spring 4 does not deform, and the rubber member 7 blocks the air inlet passage 9 of the iron core 5 so that the air inlet passage 9 is not connected to the inside of the iron core 5 .

[0044] The pin 15 is connected to the power supply, and the electromagnetic coil 2 is magnetized, so that the iron column 3 moves downward and squeezes the second spring 17, so that the gas outlet channel 11 is connected to the gas outlet 10. At this time, the iron column 3 is in the first position, and the gas in the gas storage part connected to the gas outlet 10 flows through the gas outlet channel 11 to discharge the gas. After the gas is discharged, the electromagnetic coil 2 is powered off, and the electromagnetic force on the iron column 3 disappears. At this time, under the action of the restoring force of the second spring 17, the iron column 3 is pushed upward until the gas outlet channel 11 and the gas outlet are closed, so that the two are no longer connected.

[0045] The gas source 16 is turned on, and the gas enters from the air inlet channel 9 at the lower end of the iron core 5, pushing up the first spring 4 to deform it, and the rubber member 7 moves up to open the air inlet channel 9. The gas flows from the iron core 5 into the channel where the first spring 4 and the second spring 17 are located, and flows from the channel opening at the top of the iron core 5 into the gap between the iron column 3 and the valve body 1, and enters the air outlet 10 through the gap between the outer wall of the iron column 3 and the inner wall of the valve body 1, and fills the gas into the gas storage part connected to the air outlet 10. At the same time, the pin 15 is not energized, and the second spring 17 pushes up to move the iron column 3 upward to block the air outlet channel 11, so that it is not connected to the air outlet 10, to keep the gas from flowing out, and to meet the pressure maintenance requirement.

[0046] The utility model provides a car seat, including a seat body and the above electromagnetic valve; a gas storage part is arranged in the seat body, which adopts an air bag 12, and the air inlet of the air bag 12 is connected with the end of the air outlet 10 of the electromagnetic valve. When the iron core 5 is in a blocked state, the lower air source is not inflated, the first spring 4 is not deformed, and the rubber part 7 blocks the air inlet channel 9 of the iron core 5, so that the gas does not flow through the iron core 5 to inflate the air bag 12. The iron core 5 is in an open state, the lower air source supplies air, and the first spring 4 and the rubber part 7 move upward to open the air supply gas to flow through the iron core 5 to inflate the air bag 12. After the air bag 12 in the seat is inflated, it can play the role of a waist support. Through intermittent inflation and deflation, the air bag 12 can have a massage effect on the human body sitting on the seat. On this basis, the utility model can also provide a car using the seat, and the driver or passenger can massage the back during the ride to improve comfort.

[0047] In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A solenoid valve, characterized in that: include: A valve body, wherein an air outlet is provided at one end of the valve body, and an air outlet channel is provided on the valve body, and the air outlet channel can be communicated with the air outlet; A valve core, comprising an iron column and an iron core, wherein the iron column is movably arranged in the valve body and is located below the air outlet of the valve body, the iron core is arranged below the iron column, and the upper part of the iron core is located in the valve body, the inner wall of the bottom of the valve body and the outer wall of the upper part of the iron core are sealed, and an air inlet channel is arranged at the bottom of the iron core, and when the air inlet channel is not connected to the air source, the air inlet channel is not connected to the inside of the iron core; The outer shell is arranged outside the valve body, the top of which is sealed and connected with the clamping groove on the valve body, and the bottom of which is clamped with the middle groove of the outer wall of the middle part of the iron core; The electromagnetic part is arranged on the outside of the valve body. When the electromagnetic part is energized, the iron column moves to the first position, at which time the air outlet and the air outlet channel are connected; when the electromagnetic part is de-energized, the iron column moves away from the first position, at which time the air outlet channel and the air outlet are not connected, and at this time if the air inlet channel is connected to the air source, the air inlet channel is connected to the inside of the iron core, and the gas in the air source can enter the inside of the iron core, and after flowing out of the outlet at the top of the iron core, enter the air outlet through the channel between the inner wall of the valve body and the outer wall of the iron column.

2. The solenoid valve according to claim 1, characterized in that: The iron core is fixedly arranged below the iron column, and a sealing piece is movably provided in the iron core, and the sealing piece can close the air inlet channel at the bottom of the iron core, and the top of the sealing piece is abutted against a first elastic piece, and one end of the first elastic piece away from the sealing piece is fixedly abutted against the bottom of the boss on the inner wall of the iron core, and the top of the boss on the inner wall of the iron core is fixedly abutted against a second elastic piece, and the top of the second elastic piece is connected to the bottom of the iron column, and the iron column can move away from the valve body after the electromagnetic part is energized.

3. The solenoid valve according to claim 2, characterized in that: The first elastic member is a first spring, the second elastic member is a second spring, one end of the second spring is connected to the iron column, and the other end is fixedly abutted against the top of the boss on the inner wall of the iron core, one end of the first spring is connected to the sealing member, and the other end is fixedly abutted against the bottom of the boss on the inner wall of the iron core.

4. The solenoid valve according to claim 2, characterized in that: The sealing member is a rubber member, one end of which is provided with a positioning groove, one end of the first elastic member is arranged in the positioning groove, the outer wall of the rubber member near the positioning groove is provided with an arc-shaped sealing boss, and the inner wall of the iron core is provided with a sealing seat near the air inlet channel. When the air inlet channel is not connected to the air source, the sealing boss abuts against the sealing seat, and at this time, the air inlet channel at the bottom of the iron core is not connected to the internal channel of the iron core.

5. The solenoid valve according to claim 1, characterized in that: The electromagnetic part comprises an electromagnetic coil, one end of which is connected to a pin, and the pin is used for an external power supply; the electromagnetic coil is located outside the valve body.

6. The solenoid valve according to claim 2, characterized in that: The side wall of the iron column is provided with a rectangular surface, and the gap between the rectangular surface and the inner wall of the shell is used for gas circulation.

7. The solenoid valve according to claim 5, characterized in that: The shell is fixedly arranged outside the electromagnetic coil.

8. The solenoid valve according to claim 2, characterized in that: Silicone pads are respectively embedded at both ends of the iron column. The silicone pad at one end of the iron column abuts against the second elastic member, and the silicone pad at the other end can block the communication port between the air outlet channel and the air outlet.

9. A car seat, characterized in that: It comprises a seat body and a solenoid valve as described in any one of claims 1 to 8; an air bag is arranged in the seat body, the air inlet of the air bag is connected to the air outlet end of the solenoid valve, and the gas in the air source can enter the air bag through the air inlet.

Images