Solenoid valve device, use thereof and valve system
阅读说明：本技术 电磁阀装置、其使用以及阀系统 (Solenoid valve device, use thereof and valve system ) 是由 维托尔德·布鲁祖克 马里乌什·贝尼奥 于 2018-04-05 设计创作，主要内容包括：本发明涉及一种电磁阀装置,包括：电枢工具(18),其配置为使得其能够响应于固定的线圈工具(12)的通电而相对于固定的芯工具(24)在阀壳体(10)中沿轴向方向运动,其中该固定的线圈工具(12)设置在该阀壳体中,并设计为与关联于该阀壳体的流体入口连接部(26)的第一阀座(22)相配合,其中,第一流体流动路径(36)配置在该阀壳体中,使得流过打开的第一阀座的流体能够流动,以便致动优选地设置于轴向上或轴向上平行于该电枢工具(18)并且相对于其能够运动并且对其施加预张紧力的柱塞工具(32),并且,该致动使得第二阀座(43)的开口与该柱塞工具(32)相互作用,以产生与该阀壳体的流体工作连接部(42)的流体连接,并且其中,该阀壳体具有呈至少一个孔的形式的紧固工具(44、46),特别是紧固孔,其相对于该轴向方向成角度地、特别是横向地延伸,其中,用于对由该电枢工具和该芯工具限制的电枢空间进行通风的第一通风出口形成在该阀壳体的共同的轴向端部分之上或之中,其轴向上相邻于该芯工具并且轴向上相对于电枢工具,第二通风出口设置用于柱塞工具的运动空间。(The present invention relates to a solenoid valve device, including: an armature tool (18) configured such that it is movable in an axial direction in a valve housing (10) relative to a stationary core tool (24) in response to energization of the stationary coil tool (12), wherein the stationary coil tool (12) is arranged in the valve housing and is designed to cooperate with a first valve seat (22) associated with a fluid inlet connection (26) of the valve housing, wherein a first fluid flow path (36) is arranged in the valve housing such that fluid flowing through the open first valve seat is flowable for actuating a plunger tool (32) which is preferably arranged axially or axially parallel to the armature tool (18) and movable relative thereto and which exerts a pretensioning force thereon, and wherein the actuation causes an opening of a second valve seat (43) to interact with the plunger tool (32) for producing a fluid connection with a fluid working connection (42) of the valve housing, and wherein the valve housing has a fastening means (44, 46), in particular a fastening hole, in the form of at least one bore, which extends at an angle, in particular transversely, with respect to the axial direction, wherein a first ventilation outlet for ventilating an armature space limited by the armature means and the core means is formed on or in a common axial end portion of the valve housing, which is axially adjacent to the core means and axially opposite the armature means, a second ventilation outlet being provided for a movement space of the plunger means.)
1. A solenoid valve device comprising:
an armature tool (18) configured such that it is movable in an axial direction in a valve housing (10) relative to a stationary core tool (24) in response to energization of the stationary coil tool (12), wherein the stationary coil tool (12) is disposed in the valve housing,
and which is configured to cooperate with a first valve seat (22) associated with a fluid inlet connection (26) of the valve housing,
wherein a first fluid flow path (36) is arranged in the valve housing such that fluid flowing through the open first valve seat can flow in order to actuate a plunger tool (32), the plunger tool (32) preferably being arranged axially or axially parallel relative to the armature tool (18) and being movable relative to the armature tool (18) and being pretensioned,
and the actuation causes a second valve seat (43) cooperating with the plunger tool (32) to open for establishing a fluid connection with a fluid working connection (42) of the valve housing,
and wherein the valve housing has a fastening means (44, 46), in particular a fastening bore, in the form of at least one bore, which extends at an angle, in particular transversely, with respect to the axial direction,
it is characterized in that the preparation method is characterized in that,
a first ventilation outlet (70) for ventilating an armature space (54) bounded by the armature tool and the core tool is arranged on or in a common axial end portion (72) of the valve housing, axially adjacent to the core tool,
and a second ventilation outlet (74) configured for ventilating a movement space (76) of the plunger tool (32).
2. Device according to claim 1, characterized in that the first and second ventilation outlets are located in a common plane, preferably extending transversely to the axial direction, or are grouped as a common ventilation outlet in the axial end portion of the valve housing.
3. The device according to claim 1 or 2, wherein the first and second vent outlets are realized by a cover assembly (78), the cover assembly (78) being attachable to the axial end portion of the valve housing, providing at least one fluid outlet, in particular causing a fluid deflection.
4. The device according to claim 3, wherein the cap assembly is configured to be insertable into a wall portion (80) of the valve housing extending parallel to the axial direction to form a seal.
5. Device according to one of claims 1 to 4, characterized in that a first ventilation duct (58) which is associated with the first ventilation outlet (70) and extends through the fixed core tool (24) extends at least partially parallel to a second ventilation duct (64c), wherein the second ventilation duct (64c) is associated with the second ventilation outlet (74) and extends edgewise in the valve housing and/or in the jacket region thereof in the axial end portion.
6. Device according to one of claims 1 to 5, characterized in that the ventilation duct portion (64a) connected to the movement space (76) extends between the movement space and the fastening tool without extending axially to or between the fastening tool and/or at least partially parallel to the direction in which the extension of the bore (44, 46) of the fastening tool is effected.
7. Device according to one of claims 1 to 6, characterized in that the fluid inlet connection (26) of the valve device or a conduit (52) which axially continues the fluid inlet connection is provided between the fastening means having a pair of holes (44, 46), wherein the pair of holes (44, 46) are arranged adjacent to each other and preferably in parallel alignment with each other.
8. Device according to claim 7, characterized in that the fluid inlet connection (26) is arranged axially on the end side of the valve housing and axially opposite the first and second venting outlets, wherein the connecting duct (52) extends at least partially along or parallel to the axial direction.
9. Device according to claim 7 or 8, characterized in that the fluid inlet connection (26) is configured and aligned relative to the fastening means (44, 46), in particular extends parallel to them, such that in the case of a plurality of valve housings of a plurality of valve devices, which are connected to one another by the fastening means and which are connected to one another, the respective fluid inlet connections can be connected to one another in a pressure-tight manner, in particular by using coupling means.
10. Device according to one of claims 1 to 9, characterized in that the valve housing is configured such that the fluid inlet connection (26), the working connection (42) and the fastening means (44, 46) are located on or in an integrally formed housing part of the valve housing, respectively.
11. Use of a solenoid valve device according to one of claims 1 to 10 as an 3/2-way pneumatic valve for fluid control or fluid circuits in motor vehicles, in particular in commercial vehicles.
12. Valve system with a plurality of solenoid valve devices according to one of claims 1 to 10, connected to each other along a succession of the holes by the respective holes of the respective fastening means.
Technical Field
The present invention relates to a solenoid valve device according to the preamble of the main claim. The invention also relates to the use of such a solenoid valve device, and to a system having a plurality of such solenoid valve devices.
Background
Solenoid valve devices according to the preamble of the main claim are well known in the prior art and are used, for example, for various switching and adjustment purposes, in particular in the construction used as pneumatic valves for motor vehicles (and in particular in the context of commercial vehicles). As part of a conventional configuration of 3/2-way pneumatic valves comprising three fluid interfaces and two switching positions, whereby the armature tool effects switching of the valve fluid in an otherwise known manner in response to energization of a fixed coil tool in the valve housing relative to a fixed core tool, wherein, in the general context of so-called booster valves, an additional amplification function of the fluid circuit is achieved. In a general manner, the movement of the armature tool, which is activated by the energization of the coil tool, thus effects in particular the respective opening or closing of the first valve seat associated with the fluid inlet connection (pressure connection) of the valve housing. The open first valve seat allows incoming pneumatic fluid to enter the first fluid flow path from which the fluid acts to actuate a plunger tool, which is also considered to be versatile (as an important component of pressurization technology). The fluid pressure of the fluid flowing into the inlet connection thus overcomes the counterforce of the plunger means (for example generated by a pretensioned spring or similar energy accumulator) and moves the plunger means until the second valve seat (which is currently closed by the plunger means) opens. The fluid flow is then brought to the fluid outlet connection (fluid working connection) of the valve housing.
This supercharging technique, which is considered to be well known, has established and proven itself for the mechanical power assistance of solenoid actuated valves of the generic type, due to the fluid pressure requirements, for example, in the surrounding area of motor vehicles and in view of the increased effective (fluid) cross-sectional width.
For example, a plunger tool used for this purpose and configured to cooperate with the second valve seat requires additional axial and radial installation space in the valve housing, wherein within the scope of the present application the direction of movement of the armature tool corresponding to the extension axis or longitudinal axis of the valve housing, respectively, should preferably be understood as "axial", in particular because the plunger tool (as an important pressure boosting assembly) stands axially at the extension of the armature tool in the valve housing. Due to the limitations of the installation conditions, in particular in motor vehicles, there is a need for optimization and shortening not only because further fastening means are provided on the universal valve housing, in addition to the usual means for fluid inlet and fluid outlet connections which project in a flange-like manner from the housing body, wherein the further fastening means have at least one hole (aperture), but also pairs of drill holes which usually extend transversely to the axial direction, for screws or the like to be used for installation purposes. Together with the installation space required for accommodating the core and the coil tool (together with the plug part for the current supply, which is located externally on the housing), a final radial and axial extension is produced, which needs to be optimized.
In the case of a generic valve device, which is therefore known from the prior art, the plunger tool is usually arranged geometrically in the axial region of the fastening tool in order to optimize the axial dimension of the known valve housing, while in the case of the fastening tool being configured as a pair of fastening bores (bore) parallel to one another, it is particularly known to accommodate the plunger tool between said fastening bores in the housing and guide them in an axially movable manner.
Although this known measure is advantageous from the point of view of an optimal axial extension of the valve housing and achieves a certain compactness, it also causes technical disadvantages: on the one hand, the geometry of the fastening tool (usually based on standardized holes or on standardized distances between drilled holes) limits the effective (maximum) lateral extension of the plunger tool and therefore, for that matter, also the contact surface of the fluid that can be used for the enhancement effect. On the other hand, this solution requires that the fluid inlet connection and the fluid working connection have to be arranged on opposite sides of the fastening tool-again along the axial direction of extension of the valve housing-which is also geometrically disadvantageous with respect to the contour and dimensions of the valve housing.
Disclosure of Invention
The object of the present invention is therefore to improve a solenoid valve device with regard to its geometric and functional properties according to the preamble of the main claim, in order in particular to provide an optimized transverse extension (and therefore in practice as wide as possible) of the plunger tool in the valve housing, in order to optimize the mechanical support effect of the pressurization technique, without having to unnecessarily extend the entire axial extension of the valve housing in a disadvantageous manner. The modularity of such a generic valve device is additionally improved, in particular in the case of a plurality of such devices (or respectively corresponding housings) being mounted on one another, so that, in accordance with a more complex switching functionality with an overall compactness which is as optimal as possible, an optimal connectivity of the individual connections and an optimal ventilation performance can be ensured.
This object is solved by a solenoid valve device comprising the features of the main claim. Advantageous further developments of the invention are described in the dependent claims. Further protection within the scope of the invention is claimed to use the solenoid valve device according to the invention as an 3/2 directional pneumatic valve for switching and control applications in the motor vehicle field, whereby the use area of commercial vehicles in particular is preferred. Finally, a valve system is claimed within the scope of the invention, which has a plurality of valve devices according to the invention, which are connected to one another by means of bores (and thus also abut one another in the direction of the respective extension of the bores), each bore realizing a fastening tool, and which can thus form a compact, flexible, easy-to-mount and operationally reliable unit.
In an advantageous manner according to the invention, a first ventilation outlet for ventilating the armature space bounded by the armature tool and the core tool is provided on or in a common axial end portion of the valve housing, which is axially adjacent to the core tool (and, on the basis of the core tool, axially faces the armature tool), and a second ventilation outlet for ventilating the movement space of the plunger tool is likewise provided, which is axially adjacent to the first ventilation outlet. According to the invention, this merging of the individual ventilations at the axial end portion (usually narrow, arranged at the front side) of the valve housing therefore has the effect that: that is, the common valve housing part not only achieves a double ventilation function in a structurally and geometrically simple manner (whereby, according to a preferred form of the invention and forming a further improvement, the first and second ventilation outlets may more preferably both exit from the valve housing in a common plane on the end parts separately from each other or may be provided together as a common ventilation outlet), this measure according to the invention also displacing the ventilation and the ducts and outlets required for one or both spaces for this purpose together from the housing area of the pressurizing plunger or the fastening tool, respectively. In an advantageous and further improved manner according to the invention, this in turn makes it possible to displace one of the fluid connections, in particular and preferably the fluid inlet connection according to the invention (which is usually connected in a pressure connection), to the region of the fastening tool (preferably realized respectively as pairs of bores or corresponding sleeves which extend parallel to one another and transversely to the axial direction).
According to one aspect, it is thereby advantageous and preferred according to the invention, to arrange and align the fluid inlet connection according to the invention in the valve housing such that it extends between a pair of bores realizing the fastening means, according to a further improvement at least comprising a connecting flange portion which can be connected for external pressure application. Alternatively, the fluid inlet connection may be provided on an axial end portion of the valve housing-axially opposite or facing the first and second vent outlet, respectively-so that an optimal housing division and utilization may be achieved by a slim overall housing profile. In this case, the (branch) conduit coupling the fluid inlet connection to the fluid guiding conduit inside the housing will then extend between a pair of mutually adjacent holes (bores), and in particular also axially or axially parallel, respectively.
In each of these inventive alternatives (forming a further improvement), the valve housing end portion opposite the vent outlet is then advantageously unaffected by any venting function (thus providing these alternatives according to the invention). In contrast, as a further development according to the invention, ventilation ducts are provided which guide, for example, the movement space to the plunger tool, which are spaced apart axially from the fastening tool (then usually bent and, as a further development, on the jacket side on the inside of the valve housing to the respective second ventilation outlet), more preferably even partially parallel to the bore of the fastening tool, but do not enter with it the (axial) overlap region.
For a further production-related optimization of the valve device according to the invention, the axial end portions of the valve housing provided for realizing the first and second ventilation outlets are configured such that, advantageously, a further improvement is formed, a cover assembly which provides (at least one) fluid outlet opening which is outwardly open for the first or second ventilation outlet, respectively, and which, depending on the geometry-and installation space-related requirements, can cause a fluid deflection of the fluid which leaves for ventilation and can be attached or inserted there, respectively, as a separate component from the valve housing or respectively as a separate assembly.
By further preferred means and for particularly simple production and installation, such a cap assembly and valve housing are advantageously made of an injectable plastic material by injection molding, which can be inserted into a wall portion of the valve housing to form a seal (optionally by interconnecting suitable seals, preferably provided circumferentially around the cap assembly), wherein this extended and preferably radially circumferential wall portion is then suitably integrally molded in one piece from the plastic material, thereby realizing a radial end portion of the valve body. The lid mounting can then be effected by simple (manual or mechanical) insertion or pressing in, respectively, whereby the ventilation geometry can be optimized with the desired ventilation exit behavior.
In order to achieve these effects, which are according to the invention and are advantageous, it is structurally particularly advantageous to ventilate the armature space between the armature tool and the stationary core tool by means of a core bore (which more preferably extends axially), wherein the core bore can then even more preferably be introduced directly into the first ventilation outlet. The movement space of the plunger tool can then be ventilated in the manner described above by means of a deflected ventilation duct which extends in each case in the latter on the edge or jacket side of the valve housing and which can likewise lead directly into a second ventilation outlet (preferably formed by a cover assembly, see above) on the axial end portion of the valve housing. The complexity of the pipe path in the valve housing, in particular in the region of the axial end section, is thereby reduced in a significant manner.
A further improved fluid inlet connection according to the invention is advantageously arranged between the individual bores (sleeves) of the fastening tool, preferably parallel to one another, which allows a plurality of solenoid valve devices according to the invention to be connected to one another or adjacent to one another, respectively, in a particularly simple manner, i.e. along the respective successive direction of the bores (bores). This is so because such a cascade arrangement would not only be provided mechanically for housing connection, preferably in the form of a continuous threaded rod or similar fastening means, but also fluid communication between the fluid inlet connections of adjacent valve devices would be possible in case of a preferably further improved configuration of the first fluid inlet connection as a bore hole extending parallel to the bore hole; an advantageous further development is then to use a coupling tool or the like for the optionally necessary sealing. Such a valve device with a continuous bore can thus also be used as a separate component, it being possible for this (continuous) bore of the fluid inlet connection to be closed releasably or unreleasably on one end by means of a suitable plug or the like in this case. This also applies to the alternative of the invention, in which the fluid inlet connection is arranged axially on the end side (thus extending opposite the vent outlet of the valve housing). Depending on the configuration of the device or devices, openings which do not need to be closed or need to be closed for proper function will then need to be closed by the respective plug means.
As a result, the invention therefore creates an optimized solenoid valve device, in which case, at least by means of the measures according to the invention, a displacement of the two ventilation outlets respectively to a common end or front side of the valve housing ("axial end portion") is made possible, the fluid inlet connection can be displaced to the opposite, facing housing end or between the fastening means respectively, but not be arranged adjacent to the working connection (which usually still extends axially in the working area to one side in the area of the plunger means, i.e. in the radial direction, from the valve housing to the outside). In contrast, according to the invention, the fluid inlet connection based on the fastening tool is no longer arranged on the axial side of the fluid working connection, so that in this respect also a further optimization of the valve housing is achieved.
The valve housing itself can be advantageously embodied as a multi-part plastic injection-molded housing according to the invention, whereby it is further preferred according to the invention to provide the fluid inlet connection on or in an integrally molded housing part of such a valve housing, respectively, to arrange according to the invention, wherein the working connection as well as the fastening tool are more preferably embodied as a pair of bores arranged adjacent to one another. This then provides, in particular, an additional embedding of the pressure boosting function in the housing part, for example in the form of a plunger tool according to the invention, while a further electromagnetic function, in particular a coil tool, and a suitable guidance of the stationary core tool and armature tool, can be provided in a further housing assembly which in turn can accommodate a suitable plug part for the power supply of the coil tool, more preferably being attached in one piece. The two housing components can then be connected to one another again in a releasable or unreleasable manner in response to the mounting, which is structurally simple and facilitates the production process.
The solenoid valve device realized in the manner described above is then suitable in a preferred manner for various, in particular pneumatic, switching and regulating tasks in the field of motor vehicles, whereby the commercial vehicle technology here again defines a preferred field of use. However, the present invention is not limited to such preferred use. Rather, the invention is applicable to virtually any application where the dimensions, connections, venting and fastening geometries of valve housings are to be optimized under limited installation conditions.
Drawings
Further advantages, features and details of the invention emerge from the following description of a preferred embodiment and from the accompanying drawings, in which:
fig. 1, 2 and 5 show perspective views of a solenoid valve device according to a first preferred embodiment of the present invention.
FIG. 3 shows a longitudinal cross-sectional view through the first exemplary embodiment;
fig. 4 shows a longitudinal section similar to fig. 3, but rotated by 90 ° in the axial direction (extending perpendicular to the plane of the drawing).
FIG. 6 shows a side view of the valve housing of the first embodiment of the present invention shown in perspective in FIGS. 1, 2, 5;
fig. 7 shows a longitudinal cross-sectional view similar to fig. 4, but parallel to the cross-section of fig. 4 and extending through a fluid inlet connection realized as a continuous cross-bore.
Detailed Description
The figures show different views and sections of a solenoid valve device according to the invention according to a first embodiment of the invention. The valve housing 10, which is composed of a housing component 10o (top in the respective drawing plane) and a lower housing component 10u, is designed to accommodate and guide an armature unit 18, wherein the housing component 10o serves to accommodate a stationary coil unit 12, the stationary coil unit 12 being held on a coil carrier 14 and being electrically contactable via a plug part 16 on the integrally formed housing component 10o, the armature unit 18 being vertically movable in the drawing plane and thus in the axial direction. The armature unit 18 is pretensioned against the first valve seat 22, which closes the first valve seat 22 in an electrically de-energized manner as a result of the action of the compression spring 20, the driving of the armature unit 18 being carried out in particular and in other known manners by energizing the coil 12 with contacts which are schematically shown in the plug part 16. In a further known manner, this energization results in an upward movement of the armature 18 relative to the fixed core unit 24, so that the nozzle-like first valve seat 22 is exposed. The latter is connected to a fluid inlet 26 (to which pneumatic fluid can be applied, typically at a pressure of between about 10 bar and about 15 bar), which
The solenoid valve of the first exemplary embodiment shown in the figures is provided with a so-called pressure amplification technique which is realized primarily by an axially adjustable plunger unit 32 and to which pneumatic fluid from the
Viewed from the geometry of the valve housing 10o, 10u, the relative arrangement of the
It is further clear that the direction of the fluid working connection 42 leading out of the housing (more precisely, the lower housing assembly 10u) extends on the basis of the axial direction orthogonally to the direction of the pair of fastening bores 44/46 (also orthogonally to the direction of the pressure connection 26). The integrally formed and plastic made lower housing component 10u accommodates the fastening bores 44, 46 (together with the connectors insertable therein, in a further development) and the
The first embodiment of the invention shown in the drawings also illustrates how to vent a working space 54, which working space 54 is confined between the core 24 and the armature 18 (which will then be closed by the activated armature 18, i.e. it will move upwards in response to energisation of the coil 12, through the polymer seal 35 inserted therein on the end side in the direction of the core), i.e. in the direction of the first vent outlet 70, which correspondingly exposes the armature space 54 to the outside of the housing. A second ventilation outlet 74 is provided for ventilation of the lower movement space 76 of the plunger tool 32 (i.e. axially towards the fastening tool), the second ventilation outlet 74 being adjacent to the first housing outlet 70 in the upper housing front face ("axial end portion of the valve housing") 72. More precisely, in the operating condition of fig. 3, 4, in the de-energized condition of the coil tool 24 and therefore in the condition of the transverse surface 38, where no pressurized fluid is applied, the plunger tool 32 exposes the motive space 76 via the second modified network of conduits, the second modified pipe network is formed from a first pipe section 64a, which first pipe section 64a extends transversely (and which is embodied as a transverse bore closed at one end by a sealing ball 65), and in particular as seen in the longitudinal cross-section of figure 4, it then merges into a lower vertical portion 64b (extending in the lower housing assembly 10o on the edge or jacket side, respectively) which then merges into an upper vertical portion 64c (extending in the upper housing assembly 10o on the edge side or jacket side, respectively) until the duct 64a, 64b, 64c leads into the front second ventilation outlet 74. In response to the described pressurizing operation, the end side polymer portion 77 of the plunger unit 32 will close the ventilation duct portion 64a, axially facing the surface 38.
The structural details of the geometrical configuration of the axial end portions of the valve housing for forming the first and second vent outlets 70, 74 are also particularly clear by comparing the longitudinal sectional views of fig. 3 and 4: a cap-like plastic body 78 can be seen, which plastic body 78 can be inserted into a circumferential, front-side edge portion 80 of the upper valve housing component 10o (wherein a sealing tool 81 ensures the respective edge side and an underlying sealing disk 79 ensures the lower seal). In the exemplary embodiment shown, it continues the housing-side opening of the ventilation duct 58 or 64c, respectively, so that the fluid is diverted and it is exposed to the outside of the housing. In the exemplary embodiment shown, the ventilation outlets configured in this way are simultaneously kept separate from one another. An alternative embodiment of the invention would open up the possibility that the two ventilation ducts could be brought together either by the action of a correspondingly configured alternative cover assembly or alternatively by a corresponding duct-related connection still in the end region of the actual valve housing.
For example, the cap assembly 78 may be connected to the valve housing in a production-related elegant manner by (releasable) insertion, latching, clamping, or alternatively by adhesive (ultrasonic) welding or similar connection methods.
The invention is not limited to the exemplary embodiments shown, which are purely exemplary in nature. The invention therefore also captures, for example, in order to achieve, in its alternative configuration, alignment and opening of the
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