阅读说明：本技术 用于控制气态介质的比例阀 (For controlling the proportioning valve of gaseous medium ) 是由 A·格林贝格尔 J·韦斯内尔 H-C·马格尔 于 2018-02-14 设计创作，主要内容包括：本发明涉及一种用于控制气态介质、尤其氢气的比例阀(1),其具有阀壳体(2),其中,在阀壳体(2)中构造有内室(3)。在内室(3)中布置有具有外极(14)和内极(15)的电磁线圈(16)。此外,内极(15)构造为两部分式并且包括第一内极元件(12)和第二内极元件(18)。(The present invention relates to a kind of for controlling the proportioning valve (1) of gaseous medium, especially hydrogen, with valve chest (2), wherein be configured with interior room (3) in valve chest (2).The electromagnetic coil (16) with outer pole (14) and interior pole (15) is disposed in interior room (3).In addition, interior pole (15) is configured to two-part and including pole element (18) in pole element (12) and second in first.)

1. a kind of for controlling the proportioning valve (1) of gaseous medium, especially hydrogen, the proportioning valve has valve chest (2), wherein Interior room (3) are configured in the valve chest (2), wherein be disposed in the interior room (3) with outer pole (14) and interior pole (15) electromagnetic coil (16), which is characterized in that the interior pole (15) is configured to two-part and including pole element in first (12) pole element (18) and in second.

2. according to claim 1 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that pole in described first Pole element (18) is mutually permanently connected in element (12) and described second, such as passes through compressed part or weld seam (7).

3. according to claim 1 or 2 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that in described second Pole element (18) is surrounded by ferrule element (20).

4. according to claim 3 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that the ferrule element (20) it is made of non-magnetic material.

5. according to claim 3 or 4 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that the sleeve member Part (20) is fixedly connected with pole element (12) in described first and/or the valve chest (2), such as passes through weld seam (7).

6. for controlling the proportioning valve (1) of gaseous medium according to claim 3,4 or 5, which is characterized in that described second Interior pole element (18) is fixed in the ferrule element (20), preferably passes through compressed part or weld seam.

7. according to any one of claim 3 to 6 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that institute It states electromagnetic coil (16) and is airtightly sealed by the ferrule element (20) relative to armature keeper room (36), wherein in described Room (3) includes the armature keeper room (36).

8. according to claim 7 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that in the magnetic rank Receive in iron room (36) have be capable of elevating movement, be configured for insertion into the armature keeper of formula armature (6), also, the magnetic rank The top stroke limiting structure of iron (6) is in described second on pole element (18).

9. according to any one of the preceding claims for controlling the proportioning valve (1) of gaseous medium, which is characterized in that institute State in first that pole element (18) is made of magnetic material, preferably ferrocobalt in pole element (12) and described second.

10. according to claim 9 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that pole in described second Element (18) is made of the magnetic material compared with pole element (12) in described first with higher saturated polarization.

11. according to any one of the preceding claims for controlling the proportioning valve (1) of gaseous medium, which is characterized in that Closing element (10) are disposed in the interior room (3), wherein the closing element (10) discharges or is latched on valve seat (37) At least one constructs the pass through openings (25) on the valve body (2).

12. according to claim 11 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that in the closing It is arranged between element (10) and the valve seat (37) flexible sealing element (9), the sealing element (9) is on valve seat (37) Sealing.

13. according to claim 11 or 12 for controlling the proportioning valve (1) of gaseous medium, which is characterized in that in described Room (3) includes spring housing (34), is disposed in the spring housing (34) and closes spring (24), wherein the closing spring (24) to carry out spring loads to the closing element (10) towards the power in the valve seat (37) direction.

14. a kind of fuel cell module (100), the fuel cell module has according to any one of preceding claims Proportioning valve (1), for controlling to the supply of the hydrogen of fuel cell.

Technical field

The present invention relates to a kind of for controlling the proportioning valve of gaseous medium, especially hydrogen, such as using with fuel electricity In the vehicle of pond driving device.

Background technique

In the field of vehicle research and development, fuel gas, especially hydrogen are the substitutes to conventional liquid fuels.There is combustion Material battery in the vehicle of driving device as needing to control hydrogen stream herein, wherein gas stream is not such as to spray liquid fuel When it is discontinuous like that controlled, but such as use ratio valve, the proportioning valve is opened according to the adjustment of desired driving power Mouth cross section.

It is a kind of for controlling the proportioning valve of gaseous medium as known to DE 10 2,012 204 565.The proportioning valve includes having The nozzle body of pass through openings, the closing element with elastic element.Institute can be discharged and closed on valve seat by closing element State pass through openings.Elastic sealing elements seal on valve seat and have groove, which has inner wall area.The inner wall area The pressure with gaseous medium is loaded under in the closed state of proportioning valve.Realize sealing element on valve seat by the arrangement It is improved to recline and therefore realize the improved leakproofness on valve seat.

In order to ensure the effective working method of proportioning valve, higher magnetic force is also required to need in the case where more high leakproofness It asks.This may cause bigger structure space and therefore leads to the inefficient structure type of entire proportioning valve.

Summary of the invention

In contrast to this, it is according to the present invention for control gaseous medium, the proportioning valve of especially hydrogen has the advantage that Although structure space as small as possible also may be implemented using bigger magnetic force.For this purpose, proportioning valve has valve chest, in the valve casing Interior room is configured in body.Arrangement has the electromagnetic coil of outer pole and interior pole in the interior room.In addition, interior pole is configured to two-part And including pole element in pole element and second in first.

May be implemented by the way that interior pole is divided into first pole element two parts in pole element and second, in first pole element and The element condition in matching ratio valve in this wise in pole in second, so that ensuring the optimal working method of proportioning valve.

It is arranged in the first advantageous configuration of the invention, pole element is fixedly connected in pole element and second in first, such as Pass through compressed part.Here, can realize big face by the ladder-like contact surface of pole element in pole element and/or second in first Pressure.In addition it is also possible to be that pole element welds in pole element and second in first.By extremely first in pole element and second in first The connection of part is conducive to the small structure space in proportioning valve.

In advantageous extension scheme of the invention, pole element is surrounded by ferrule element in second.Advantageously, ferrule element by Non-magnetic material is made.Therefore, instead of pole element in second, ferrule element may insure it is outside, especially towards electromagnetic coil Leakproofness.

It is advantageously provided in the other configuration of present inventive concept, pole element and/or valve chest in ferrule element and first It is fixedly connected, such as passes through weld seam.Pole element can be optimally directed in interior room in first as a result,.Here, ferrule element As the spacer between pole element in valve chest and first.Advantageously, pole element is fixed on ferrule element in second In, preferably pass through compressed part or weld seam.Therefore optimization orientation of the pole element in proportioning valve in second is realized.

In advantageous expansion scheme of the invention, electromagnetic coil by ferrule element relative to armature keeper room airtightly Sealing, wherein interior room includes armature keeper room.Therefore, ferrule element ensures to protect electromagnetic coil from abrasion.Work as electromagnetic coil With gaseous medium, herein when being that hydrogen contacts, in fact it could happen that the abrasion.

Be advantageously provided in the other configuration of present inventive concept, in armature keeper room receive have liftable move, The top stroke limiting structure of the armature keeper of formula armature and armature keeper is configured for insertion into second on the element of pole.It is magnetic Armature by electromagnetic coil can elevating movement, it is possible thereby to control proportioning valve.

In advantageous expansion scheme, in first in pole element and second pole element by magnetic material, preferably ferrocobalt It is made.Advantageously, pole element is made of the magnetic material compared with pole element in first with higher saturated polarization in second.Make Being had the advantage that with the magnetic material with high saturated polarization can be improved magnetic force when connecting electromagnetic coil.Because this Magnetic material increased costs and must be processed on a large scale, thus be not made of in entire pole all by the material.In addition, should Magnetic material is simultaneously less resistant to hydrogen by force, so that avoiding excessive use.

It is advantageously provided in other configuration of the invention, closing element is disposed in interior room, wherein closing element exists It is discharged on valve seat or is latched at least one and construct the pass through openings on valve body.Advantageously, the cloth between closing element and valve seat Elastic sealing elements are equipped with, which seals on valve seat.It is through-flow thus, it is possible to control hydrogen in a simple manner.

In advantageous expansion scheme, interior room includes spring housing, and closing spring is disposed in the spring housing, wherein is closed Spring is closed to carry out spring loads to closing element towards the power in valve seat direction.This ensures the close of proportioning valve when electromagnetic coil powers off Feng Xing, so that it is through-flow hydrogen cannot to occur.

Advantageously, illustrated proportioning valve is suitable for controlling to the anode region of fuel cell in fuel cell module Hydrogen supply.Small pressure oscillation and quiet operation in anode paths are advantageous.

Detailed description of the invention

Be shown in the accompanying drawings it is according to the present invention for control the gas of fuel cell is supplied, the proportioning valve of especially hydrogen Embodiment.In attached drawing shows:

Fig. 1 shows the first embodiment according to the present invention with the proportioning valve of pole in two parts with longitudinal section,

Fig. 2 shows the second embodiment according to the present invention with the proportioning valve of pole in two parts with longitudinal section.

Specific embodiment

Fig. 1 shows the embodiment of proportioning valve 1 according to the present invention with longitudinal section.Proportioning valve 1 has valve chest 2, the valve casing Body has interior room 3.The electromagnetic coil 16 with outer pole 14 and interior pole 15 is disposed in interior room 3.Interior pole 15 includes pole in first Pole element 18 in element 12 and second.Pole element 18 is connected with each other by weld seam 7 in pole element 12 and second in first.

Element 18 limit spring housing 34 in pole in pole element 12 and second in valve chest 2, first, wherein spring housing 34 constructs For a part of interior room 3.It is disposed in spring housing 34 and closes spring 24, which is supported on valve chest 2 in side The upper and other side is supported on the disc-like end portions 19 for the connecting element 8 being arranged in interior room 3.The pole in second of connecting element 8 There is the first guide section 31 on element 18 and be more than that spring housing 34 extend into armature keeper room 36.

Armature keeper room 36 is by pole element 18, valve chest 2 and 20 limit of ferrule element in second and is configured to interior room 3 A part.Ferrule element 20 is fixedly connected by weld seam 7 with pole element 12 in first and valve chest 2, so that ferrule element 20 is used Make spacer and seal armature keeper room 36 relative to electromagnetic coil 16, so that without gaseous medium, herein It is hydrogen, can reaches on electromagnetic coil 16.In addition, ferrule element 20 surrounds pole element 18 in second, wherein interior extremely first at this Interface channel 32 is configured in part 18, so that spring housing 34 and armature keeper room 36 are connected with each other.

In addition, be disposed with the armature keeper 6 for being configured for insertion into formula armature in armature keeper room 36, the armature keeper with Connecting element 8 is fixedly connected.Pole element 18 is used as the top stroke backstop 23 of armature keeper 6 in second.Armature keeper 6 is in valve casing It is directed in guide part 35 in body 2.

The second guide section 33 that connecting element 8 passes through valve chest 2, which reaches, to be flowed into room 22, and the inflow room is configured to interior A part of room 3.Room 22 is flowed into connect via the second interface channel 30 with armature keeper room 36.Connecting element 8 is with it away from pass The end for closing spring 24 is fixedly connected with closing element 10.Closing element 10 has bullet on its end away from connecting element 8 Property sealing element 9.

Valve chest 2 includes nozzle body 4, which has pass through openings 25, and flowing into room 22 as a result, can be with delivery chamber 26 Connection.It is configured with flat valve seat 37 on nozzle body 4,9 collective effect of elastic sealing elements of the valve seat and closing element 10, When so that being fallen on flat valve seat 37 in the closing element 10 with elastic sealing elements 9, pass through openings 25 are closed.

The valve chest 2 of proportioning valve 1 is injection molding encapsulation piece 17 and surrounds to prevent by external action.In order to which the hydrogen of proportioning valve 1 supplies It answers, is configured with service duct 28 in injection encapsulated part 17 and valve chest 2.

The working method of proportioning valve 1:

In 16 no power of electromagnetic coil, closing element 10 is forced on valve seat 37 by closing spring 24, is flowed into Connection between room 22 and delivery chamber 26 is interrupted and gas through-flow does not occur.

If electromagnetic coil 16 is energized, magnetic force is generated on armature keeper 6, the magnetic force and the closing for closing spring 44 Power is contrary.The magnetic force is passed on closing element 10 by connecting element 8, so that closing the closing forces of spring 24 by mistake It offsets and closing element 10 is lifted from valve seat 37.From room 22 is flowed into via pass through openings 25 to the gas through-flow in delivery chamber 26 It is released.

The stroke of closing element 10 can be adjusted by the size of the current strength on electromagnetic coil 16.Electromagnetic coil 16 On current strength it is higher, then the stroke of closing element 10 is bigger and proportioning valve 1 in gas flow it is also bigger because closing The power of spring 24 is related to stroke.If the current strength on electromagnetic coil 16 reduces, the stroke of closing element 10 also reduces And therefore gas flow is throttled.

If the current interruptions on electromagnetic coil 16, the magnetic force on armature keeper 6 reduces, so that by connecting element 8 The power being applied on closing element reduces.Closing element 10 is towards the movement of the direction of pass through openings 25 and by elastic sealing elements 9 seal on valve seat 37.The gas through-flow of proportioning valve 1 interrupts.

Alternatively, flowing into room 22 can exchange with delivery chamber 26 together with service duct 28, so that carrying out in proportioning valve 1 It is reverse through-flow.

Fig. 2 shows another embodiment of proportioning valve 1 according to the present invention with longitudinal section.Compared to Figure 1, in the embodiment In, pole element 18 has ladder-like contact surface 38 in second, and pole element 18 is forced into pole in first by the contact surface in second In element 12.

Remaining structure and working method of embodiment shown in Fig. 2 correspond to the embodiment of Fig. 1.

In the embodiment of Fig. 1 and Fig. 2, in armature keeper 6, first in pole element 12 and second pole element 18 by magnetic material Material, such as ferritic steel such as FeCo17 or FeCo50 are made.Pole element 18 compared with pole element 12 in first by having in second The magnetic material of higher saturated polarization is made.It therefore, can be real using the magnetic material with high saturated polarization The increase of existing magnetic force, without being changed on electromagnetic coil 16.

Alternatively, instead of the welding of pole element 18 in pole element 12 and second in first, pole element 18 can also be in second It is clamped in ferrule element 20.

Proportioning valve 1 according to the present invention can for example use in fuel cell module.Fuel can be given by proportioning valve 1 The anode region of battery supplies the hydrogen from case.Depending on the size of the current strength on the electromagnetic coil 16 of proportioning valve 1, lead to The stroke of the current strength manipulation closing element 10 is crossed, thus change the through flow cross section of pass through openings 25 in this wise, so that The gas stream for being supplied to fuel cell is continuously adjusted according to demand.

Therefore, it has the advantage that herein for controlling the proportioning valve 1 of gaseous medium by the through-flow of pass through openings 25 The electronically controlled matching of cross section significantly can more accurately carry out the first gaseous medium while adjusting anode pressure Supply and the hydrogen dosage into anode of fuel cell.Thus it is obviously improved the operational reliability of the fuel cell of connection and durable Property, because hydrogen is always supplied with the ratio of hyperstoichiometry.Furthermore subsequent damage, such as the catalysis of postposition are also possible to prevent The damage of device.