CN215891328U - Electromagnetic valve device - Google Patents
Electromagnetic valve device Download PDFInfo
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- CN215891328U CN215891328U CN202121887632.6U CN202121887632U CN215891328U CN 215891328 U CN215891328 U CN 215891328U CN 202121887632 U CN202121887632 U CN 202121887632U CN 215891328 U CN215891328 U CN 215891328U
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Abstract
本实用新型适用于阀门领域，公开了电磁阀装置，包括壳体组件、第一阀体组件、第二阀体组件和阀芯组件，第一阀体组件和第二阀体组件分别设于壳体组件的两端，且壳体组件、第一阀体组件和第二阀体组件围合形成阀腔，第一阀体组件包括第一磁铁和第一导电线圈，第二阀体组件包括第二磁铁和第二导电线圈，且第二阀体组件上设有流道，阀腔通过流道与外界连通，阀芯组件设于阀腔内，并用于密封或敞开流道，第一导电线圈通电，电磁阀装置处于开状态，第二导电线圈通电，电磁阀装置处于关状态，在第一导电线圈和第二导电线圈断电后依然能保证电磁阀装置的常开或者常关状态；该电磁阀装置不需要设置弹簧，避免了低温环境失效导致的不可靠问题。
The utility model is suitable for the field of valves, and discloses a solenoid valve device, which comprises a casing assembly, a first valve body assembly, a second valve body assembly and a valve core assembly, wherein the first valve body assembly and the second valve body assembly are respectively arranged in the casing Both ends of the body assembly, and the housing assembly, the first valve body assembly and the second valve body assembly are enclosed to form a valve cavity, the first valve body assembly includes a first magnet and a first conductive coil, and the second valve body assembly includes a first valve body assembly. Two magnets and a second conductive coil, and the second valve body assembly is provided with a flow channel, the valve cavity communicates with the outside world through the flow channel, the valve core assembly is set in the valve cavity, and is used to seal or open the flow channel, the first conductive coil When the power is turned on, the solenoid valve device is in an open state, the second conductive coil is energized, and the solenoid valve device is in an off state, and the normally open or normally closed state of the solenoid valve device can still be guaranteed after the first conductive coil and the second conductive coil are powered off; The solenoid valve device does not need a spring, which avoids the unreliable problem caused by the failure of the low temperature environment.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to an electromagnetic valve device.
Background
The electromagnetic valve can realize active control of fluid flow direction, flow velocity and the like under the action of electromagnetic force, and is an indispensable basic element in a low-temperature refrigeration cycle system of liquid helium, liquid nitrogen, liquid oxygen, liquid hydrogen and the like. The mechanical structure of the solenoid valve generally includes a valve body and a valve element. The core rod moves under the driving of the electromagnetic force generated by the valve body to control the opening and closing of the flow passage, thereby realizing the on-off of the fluid.
However, the common solenoid valves in the market at present mainly realize the movement and the reset of the valve core through the active electromagnetic force of the electromagnet and the pre-tightening elastic force of the spring. The electromagnetic valve has the following problems:
first, the solenoid valve is complicated in structure and is prone to cause sealing problems.
Secondly, after the electromagnetic valve is used for a period of time, the elastic element is easy to generate stress fatigue due to repeated deformation, so that the problem of insufficient restoring force is caused, the valve core cannot be rapidly reset, and the normal work of the electromagnetic valve is influenced.
Thirdly, the common spring has low temperature brittleness, so the spring needs to adopt special materials to adapt to special low temperature working media in low temperature environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a solenoid valve device, which aims to solve the technical problems that the existing solenoid valve is easy to cause insufficient restoring force and unreliable caused by failure in a low-temperature environment due to the fact that a spring is adopted to realize the movement and the reset of a valve core.
In order to achieve the purpose, the utility model provides the following scheme:
a solenoid valve device comprises a shell assembly, a first valve body assembly, a second valve body assembly and a valve core assembly, wherein the first valve body assembly is arranged at one end of the shell assembly, the second valve body assembly is arranged at the other end of the shell assembly, the first valve body assembly and the second valve body assembly are enclosed to form a valve cavity, the first valve body assembly comprises a first magnet and a first conductive coil which is wound around the first magnet and used for controlling the magnetic force of the first valve body assembly, the second valve body assembly comprises a second magnet and a second conductive coil which is wound around the second magnet and used for controlling the magnetic force of the second valve body assembly, a flow channel is arranged on the second valve body assembly, the valve cavity is communicated with the outside through the flow channel, and the valve core assembly is arranged in the valve cavity and used for sealing or opening the flow channel, the first conductive coil is electrified, the second conductive coil is powered off, the resultant force of the magnetic force generated by the first valve body assembly and the magnetic force generated by the second valve body assembly points to the first valve body assembly, the valve core assembly and the first valve body assembly are attracted to open the flow channel, and the flow channel is kept open after the first conductive coil is powered off; the second conductive coil is electrified, the first conductive coil is powered off, the resultant force of the magnetic force generated by the first valve body assembly and the magnetic force generated by the second valve body assembly points to the second valve body assembly, the valve core assembly and the second valve body assembly attract each other to seal the flow channel, and the flow channel keeps sealed after the second conductive coil is powered off.
As a preferred embodiment, the first valve body assembly further comprises a first bracket mounted on the housing assembly, and the first magnet and the first conductive coil are both mounted on an end surface of the first bracket facing the second valve body assembly.
As a preferred embodiment, the second valve body assembly further includes a second support and a pressing cover mounted on the housing assembly, the second support is mounted on the housing assembly, the pressing cover is pressed on the second support and is disposed on the inner side of the second support, a magnet slot for mounting the second magnet is formed between the second support and the pressing cover, the second magnet is mounted in the magnet slot, the second conductive coil is mounted on one side of the pressing cover facing the first magnet, and the flow channel is disposed on the pressing cover.
As a preferred embodiment, the valve core assembly includes a core print disposed between the first magnet and the second magnet and a core rod disposed in the flow channel and connected to the core print, the core print has magnetism and is disposed in a flat plate shape, the core print attracts the first valve body assembly, and the flow channel is open; the core print is attracted to the second valve body assembly, and the flow passage is sealed.
As a preferred embodiment, the core print is pressed from longitudinally placed silicon steel laminations.
As a preferred embodiment, the valve core assembly further comprises a valve core protective sleeve sleeved on the outer surface of the valve core.
As a preferred embodiment, the housing assembly includes a first housing and a second housing detachably connected to the first housing, and the first housing and the second housing are hermetically connected, the first valve body assembly is mounted on the first housing, and the second valve body assembly is mounted on the second housing.
The electromagnetic valve device provided by the utility model has the following advantages:
firstly, the electromagnetic valve device has three working states of normally open, normally closed and variable frequency reciprocating by controlling the position of the valve core assembly.
Secondly, the first valve body assembly and the second valve body assembly of the electromagnetic valve device comprise the magnet and the conductive coil, so that the electromagnetic valve device can be in a self-maintaining normally-open or normally-closed state under the condition that the conductive coil is not electrified, and can also be in a position changing the valve core assembly by electrifying the conductive coil, so that the electromagnetic valve device can have three working states of normally-open, normally-closed and frequency conversion reciprocating without using a spring, and the problems of unreliable performance, limited service life and the like caused by high-frequency deformation of the spring in a low-temperature environment are solved. In addition, the working state of the electromagnetic valve device is changed by switching on and off the electricity, and the response speed is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a solenoid valve device provided in an embodiment of the present invention;
FIG. 2 is a magnetic circuit schematic of an embodiment of the solenoid valve assembly of FIG. 1;
fig. 3 is a magnetic circuit schematic of another embodiment of the solenoid valve device of fig. 1.
The reference numbers illustrate:
10. a housing assembly; 11. a first housing; 12. a second housing; 13. a valve cavity;
20. a first valve body assembly; 21. a first magnet; 22. a first conductive coil; 23. a first bracket;
30. a second valve body assembly; 31. a second magnet; 32. a second conductive coil; 33. a second bracket; 34. a gland; 35. a flow channel; 36. a magnet slot;
40. a valve core assembly; 41. a core print; 42. a core bar; 43. and a valve core protective sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 3, a solenoid valve device according to an embodiment of the present invention is used to control a fluid flow or a fluid direction, and the solenoid valve device does not need to provide an elastic member such as a spring, a bellows, and a corrugated reed that needs to be repeatedly deformed, thereby avoiding an unreliable problem caused by a failure in a low temperature environment.
Referring to fig. 1, a solenoid valve device according to an embodiment of the present invention includes a housing assembly 10, a first valve assembly 20, a second valve assembly 30, and a valve core assembly 40, wherein the first valve assembly 20 is disposed at one end of the housing assembly 10, the second valve assembly 30 is disposed at the other end of the housing assembly 10, the first valve assembly 20, and the second valve assembly 30 surround to form a valve cavity 13, the first valve assembly 20 includes a first magnet 21 and a first conductive coil 22 wound around the first magnet 21 and used for controlling the magnitude and the direction of the magnetic force of the first valve assembly 20, the second valve assembly 30 includes a second magnet 31 and a second conductive coil 32 wound around the second magnet 31 and used for controlling the magnitude and the direction of the magnetic force of the second valve assembly 30, and the second valve assembly 30 is provided with a flow passage 35, the valve cavity 13 is communicated with the outside through the flow passage 35, the valve core assembly 40 is arranged in the valve cavity 13 and used for sealing or opening the flow passage 35, the first conductive coil 22 is electrified, the second conductive coil 32 is powered off, the resultant force of the magnetic force generated by the first valve body assembly 20 and the magnetic force generated by the second valve body assembly 30 points to the first valve body assembly 20, the valve core assembly 40 and the first valve body assembly 20 are attracted to open the flow passage 35, the electromagnetic valve device is in an on state, and after the first conductive coil 22 is powered off, the electromagnetic valve device keeps in the on state; the second conductive coil 32 is powered on, the first conductive coil 22 is powered off, the resultant force of the magnetic force generated by the first valve body assembly 20 and the magnetic force generated by the second valve body assembly 30 is directed to the second valve body assembly 30, the valve core assembly 40 and the second valve body assembly 30 attract each other to seal the flow passage 35, the solenoid valve device is in an off state, and after the second conductive coil 32 is powered off, the solenoid valve device keeps in the off state.
Specifically, both the first magnet 21 and the second magnet 31 are permanent magnets. As shown in fig. 2 and 3, the direction of the magnetic induction line generated by the first magnet 21 is the same as the direction of the magnetic induction line generated by the first conductive coil 22, and the direction of the magnetic induction line generated by the second magnet 31 is the same as the direction of the magnetic induction line generated by the second conductive coil 32.
When the solenoid valve device needs to keep a normally open state, the second conductive coil 32 is powered off, the first conductive coil 22 is powered on, the valve core assembly 40 is close to the first magnet 21, the valve core assembly 40 is attracted by the first magnet 21 and is attracted with the first magnet 21, at the moment, the first conductive coil 22 is powered off, and the solenoid valve device can realize a normally open self-holding function.
When the solenoid valve device needs to keep a normally-closed state, the first conductive coil 22 is powered off, the second conductive coil 32 is powered on, the valve core assembly 40 is made to be close to the second magnet 31, the valve core assembly 40 is attracted by the second magnet 31 and is attracted with the second magnet 31, at the moment, the second conductive coil 32 is powered off, and the solenoid valve device can achieve a normally-closed self-holding function.
When the first conductive coil 22 and the second conductive coil 32 are respectively opened and closed at a fixed frequency, the valve core assembly 40 reciprocates at the fixed frequency, and at the time, the electromagnetic valve device is in a variable-frequency reciprocating state.
First conductive coil 22 and second conductive coil 32 can still ensure the normally open or normally closed state of the solenoid valve device without being energized, which is beneficial to reducing energy consumption, saving energy and reducing heat generation.
It can be understood that the total volume of the first magnet 21 and the second magnet 31 should be relatively close to each other, and the total area of the magnetic poles of the first magnet 21 and the total area of the magnetic poles of the second magnet 31 should be relatively close to each other, so that it can be ensured that the magnetic force of the first magnet 21 and the second magnet 31 on the valve core assembly is not too different from each other, and therefore, when the electromagnetic valve device is in a normally open state or a normally closed state, the valve body assembly attached to the magnet at one end is not prone to passively separating the magnet at the end from the valve core assembly (at this time, the coils at both ends are in a power-off state) due to the too large magnetic force at the other end.
The first valve body assembly 20 further includes a first bracket 23 mounted to the housing assembly 10, and the first magnet 21 and the first conductive coil 22 are mounted to an end surface of the first bracket 23 facing the second valve body assembly 30 (the second bracket 33). The first bracket 23 is provided to integrate the first magnet 21 and the first conductive coil 22 and then to be assembled to the housing assembly 10, which is more convenient to assemble.
Specifically, the first support 23 is made of a non-magnetic conductive material.
The second valve body assembly 30 further includes a second support 33 and a pressing cover 34 mounted on the housing assembly 10, the second support 33 is mounted on the housing assembly 10, the pressing cover 34 is pressed on the second support 33 and is disposed on the inner side of the second support 33, a magnet slot 36 for mounting the second magnet 31 is formed between the second support 33 and the pressing cover, the second magnet 31 is mounted in the magnet slot 36, the second conductive coil 32 is mounted on one side of the pressing cover 34 facing the first magnet 21, and the flow channel 35 is disposed on the pressing cover 34.
Specifically, the second holder 33 and the gland 34 are both made of a non-magnetic conductive material.
Referring to fig. 1, the valve core assembly 40 includes a core 41 disposed between the first magnet 21 and the second magnet 31, and a core rod 42 disposed in the flow passage 35 and connected to the core 41, wherein the core 41 is disposed in a flat plate shape, and the core 41 has magnetism and can attract the first valve body assembly 20 or the second valve body assembly 30. When the core 41 is attracted to the first valve body assembly 20, the flow passage 35 is open and the solenoid valve assembly is in an open state, and when the core 41 is attracted to the second valve body assembly 30, the flow passage 35 is sealed and the solenoid valve assembly is in a closed state. The electromagnetic valve device of the embodiment of the utility model designs the flat core head 41, and utilizes the stress of two end surfaces of the core head 41, namely the flat plate to realize the stress, thereby replacing the common stress of the core rod 42 in the market. Under the same coil current, the stress can be effectively increased by increasing the area of the flat plate, and the response speed is accelerated.
Further, the valve core assembly 40 further includes a valve core protection sleeve 43 disposed on the outer surface of the valve core 41. The spool cover 43 is made of polyimide, is resistant to low temperature and impact, and wraps the core print 41 through the spool cover 43, thereby having a function of fixing and protecting the core print 41. In addition, the valve core protective sleeve 43 is not magnetic conductive, so that the excessive bonding and difficult separation of the magnetic pole and the valve head due to the overlarge magnetic force caused by the gapless contact of the magnetic pole and the valve head can be avoided.
Specifically, the core head 41 is formed by pressing longitudinally placed silicon steel laminations, and the valve core protective sleeve 43 wraps the silicon steel laminations and has the functions of fixing and protecting the silicon steel laminations. The core rod 42 is made of a non-magnetic material. The core head 41 and the core rod 42 are connected by means of screws or interference fit or the like.
Referring to fig. 1, the housing assembly 10 includes a first housing 11 and a second housing 12 detachably connected to the first housing 11, and the first housing 11 and the second housing 12 are sealed by a sealing measure to seal the gas inside the valve and the gas outside the valve, and the specific sealing manner is not limited. The first valve body assembly 20 is mounted on the first housing 11, the second valve body assembly 30 is mounted on the second housing 12, and the first housing 11 and the second housing 12 are made of a non-magnetic material, such as a stainless steel material. The first housing 11 and the second housing 12 are detachably connected, so that the first valve body assembly 20 and the second valve body assembly 30 can be assembled and disassembled more conveniently.
The electromagnetic valve device provided by the embodiment of the utility model has the following advantages:
first, the solenoid valve device according to the embodiment of the present invention enables the solenoid valve device to have three working states, i.e., normally open, normally closed, and variable frequency reciprocating, by controlling the position of the valve core assembly 40.
Secondly, the first valve body assembly 20 and the second valve body assembly 30 of the electromagnetic valve device provided by the embodiment of the utility model both comprise the magnet and the conductive coil, so that the electromagnetic valve device can be self-maintained in a normally open or normally closed state under the condition that the conductive coil is not electrified, and can also be changed in position of the valve core assembly 40 by electrifying the conductive coil, so that the electromagnetic valve device can have three working states of normally open, normally closed and variable frequency reciprocating under the condition that a spring is not used, and the problems of unreliable performance, limited service life and the like caused by high-frequency deformation of the spring under a low-temperature environment are solved. In addition, the electromagnetic valve device provided by the embodiment of the utility model changes the working state of the electromagnetic valve device by switching on and off, and has high response speed.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887632.6U CN215891328U (en) | 2021-08-12 | 2021-08-12 | Electromagnetic valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121887632.6U CN215891328U (en) | 2021-08-12 | 2021-08-12 | Electromagnetic valve device |
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| Publication Number | Publication Date |
|---|---|
| CN215891328U true CN215891328U (en) | 2022-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121887632.6U Active CN215891328U (en) | 2021-08-12 | 2021-08-12 | Electromagnetic valve device |
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| CN (1) | CN215891328U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958758A (en) * | 2021-08-12 | 2022-01-21 | 中国科学院理化技术研究所 | Electromagnetic valve device |
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2021
- 2021-08-12 CN CN202121887632.6U patent/CN215891328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958758A (en) * | 2021-08-12 | 2022-01-21 | 中国科学院理化技术研究所 | Electromagnetic valve device |
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