Proportional electromagnet with sealing structure

Abstract

The proportion electromagnet with the sealing structure comprises a shell, a coil assembly, an armature and a guide sleeve, the armature is arranged in the guide sleeve, the shell is arranged outside the guide sleeve, the coil assembly is arranged between the guide sleeve and the shell, and the position of the armature corresponds to the position of the coil assembly; two ends of the armature are respectively provided with a high-voltage side push rod and a low-voltage side push rod, the guide sleeve is provided with a push rod through hole, the high-voltage side push rod penetrates out of the guide sleeve through the push rod through hole, and the push rod through hole is provided with a sealing rubber ring inside the guide sleeve. Therefore, the effects of enhancing the sealing performance of the proportion electromagnet, improving the running stability of the proportion electromagnet, prolonging the service life, improving the energy efficiency and the like can be achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of electromagnetic air proportional valves, and in particular to proportional electromagnets with sealing structures installed in electromagnetic air proportional valves. Background Technology

[0002] In industrial automation and fluid control systems, electromagnetic proportional air valves are widely used as key control components to regulate parameters such as air flow and pressure to meet the needs of precise control. These valves use electromagnetic force to control the position of the valve core, thereby adjusting the opening of the fluid passage and achieving proportional control. However, in practical applications, the design and operating environment of electromagnetic proportional air valves often face a series of challenges, particularly issues related to gas purity and sealing.

[0003] In the working mechanism of an electromagnetic proportional air valve, a significant phenomenon is that when the valve performs venting operations, a small amount of pilot gas inevitably enters the mounting cavity of the electromagnet. Due to its unique flow path, this pilot gas creates a significant pressure difference across the electromagnet. This pressure difference plays a crucial role in the electromagnet's operating environment, as it directly affects its stable operation and response speed.

[0004] On the other hand, the precision structure of the electromagnetic proportional valve, especially the tiny gap between the push rod and the guide sleeve, while designed for smooth and precise movement, also provides a potential intrusion path for impurities from the external environment. When the working air source of the proportional valve contains oil, dust, or other minute impurities, these impurities can easily seep into the mounting cavity of the electromagnet through the gap between the push rod and the guide sleeve under the influence of pressure difference.

[0005] Over time, this contaminated air will gradually accumulate around the electromagnet, forming a contamination layer that affects its performance. This contamination layer not only hinders the effective heat dissipation of the electromagnet, reducing its working efficiency, but may also directly interfere with the interaction force between the electromagnet and the valve core, causing the electromagnet to act slowly, respond unresponsively, and even malfunction or fail in some extreme cases.

[0006] Therefore, in order to ensure the long-term stable operation and high efficiency of the electromagnetic air proportional valve, effective measures must be taken to prevent or mitigate the pollution problem caused by oil and impurities. Utility Model Content

[0007] To address the aforementioned problems, this utility model proposes a proportional electromagnet with a sealed structure, comprising a housing, a coil assembly, an armature, and a guide sleeve. The armature is disposed within the guide sleeve, and the housing is disposed outside the guide sleeve. The coil assembly is disposed between the guide sleeve and the housing, with the position of the armature corresponding to the position of the coil assembly. A high-voltage push rod and a low-voltage push rod are respectively provided at both ends of the armature. The guide sleeve has a push rod through hole, through which the high-voltage push rod passes outside the guide sleeve. A sealing ring is provided inside the push rod through hole of the guide sleeve.

[0008] Furthermore, the sealing ring is a fluorosilicone rubber dust ring.

[0009] Furthermore, a rubber ring receiving port is provided inside the guide sleeve, and the sealing rubber ring is placed inside the rubber ring receiving port.

[0010] Furthermore, the sealing ring is fitted through the push rod through hole, with one end of the sealing ring extending from the inside of the guide sleeve to the outside of the guide sleeve.

[0011] Furthermore, the end of the I-shaped rubber ring exposed on the guide sleeve has an arc-shaped rolled edge.

[0012] Therefore, the beneficial effects of this utility model are as follows:

[0013] Enhanced sealing performance: The sealing structure can effectively isolate the electromagnet from the external environment, significantly reducing or preventing the entry of the pilot gas and its carried oil, dust and other impurities into the electromagnet, thereby avoiding the formation of a contamination layer around the electromagnet and maintaining the cleanliness of the electromagnet and its working environment.

[0014] Improved operational stability: By reducing interference from external impurities, the electromagnet's operation becomes more precise, rapid, and stable. This ensures the accuracy of the proportional valve during regulation, improving the stability and reliability of the entire fluid control system.

[0015] Extended service life: The sealed structure reduces wear and corrosion of the electromagnet and its surrounding components, thereby extending the service life of the electromagnet and the entire proportional valve. This reduces costs and downtime caused by frequent maintenance or component replacement.

[0016] Improved energy efficiency: Reducing the intrusion of external impurities also means that the electromagnet can more effectively utilize electrical energy during operation, converting it into the mechanical energy required to drive the valve core, thereby improving energy conversion efficiency and reducing energy consumption.

[0017] In summary, proportional electromagnets with sealed structures have significant beneficial effects on improving the overall performance of electromagnetic air proportional valves, extending their service life, reducing maintenance costs, and enhancing system stability. Attached Figure Description

[0018] Figure 1This is a cross-sectional schematic diagram of one embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional schematic diagram of the housing, coil assembly and guide sleeve of this utility model.

[0020] Figure 3 This is a cross-sectional schematic diagram of the sealing ring installation structure in another embodiment of the present invention.

[0021] Figure Labels

[0022] 1. Shell

[0023] 2. Coil Assembly

[0024] 3 Armature

[0025] 31 High-pressure side push rod

[0026] 32 Low-pressure side push rod

[0027] 4 guide sleeve

[0028] 41 Push rod through hole

[0029] 5. Sealing rings

[0030] 51. Rounded, rolled edge Detailed Implementation

[0031] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0032] In the following description, reference is made to the accompanying drawings, which depict several embodiments of the present application. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical, and operation may be made without departing from the spirit and scope of this disclosure. The following detailed description should not be considered limiting, and the scope of the embodiments of the present application is defined only by the claims of the published patent. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present application. Spatially related terms, such as “upper,” “lower,” “left,” “right,” “below,” “below,” “lower part,” “above,” “upper part,” etc., may be used herein to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0033] Although the terms first, second, etc., are used in some instances herein to describe various elements or parameters, these elements or parameters should not be limited by these terms. These terms are used only to distinguish one element or parameter from another. For example, a first end may be referred to as a second end, and similarly, a second end may be referred to as a first end, without departing from the scope of the various described embodiments. Both first end and second end are descriptions of an end, but they are not the same end unless the context otherwise clearly indicates otherwise.

[0034] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition occur only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0035] Please refer to Figure 1 and Figure 2 As an embodiment of the present invention, a proportional electromagnet with a sealed structure includes a housing 1, a coil assembly 2, an armature 3 and a guide sleeve 4. The armature 3 is disposed inside the guide sleeve 4, and the housing 1 is disposed outside the guide sleeve 4. The coil assembly 2 is disposed between the guide sleeve 4 and the housing 1, and the position of the armature 3 corresponds to the position of the coil assembly 2.

[0036] Based on the fact that a portion of the pilot gas enters the electromagnet mounting cavity during exhaust of the electromagnetic air proportional valve, thus creating a pressure difference across the electromagnet, the armature 3 has a high-pressure side push rod 31 on the high-pressure side and a low-pressure side push rod 32 on the low-pressure side. The guide sleeve 4 has a push rod through hole 41 on the high-pressure side, through which the high-pressure side push rod 31 protrudes from the outside of the guide sleeve 4. A sealing ring 5 is provided inside the push rod through hole 41 of the guide sleeve 4. In this embodiment, the sealing ring 5 is a fluorosilicone rubber dustproof ring.

[0037] Furthermore, a rubber ring receiving opening 42 is provided inside the guide sleeve 4, and the sealing rubber ring 5 is disposed within the rubber ring receiving opening 42. Additionally, please refer to... Figure 3In another embodiment of this utility model, to achieve a better sealing effect, the sealing ring 5 can be fitted through the push rod through hole 41, and one end of the sealing ring 5 extends from the inside of the guide sleeve 4 to the outside of the guide sleeve 4. The end of the sealing ring 5 exposed on the guide sleeve has an arc-shaped rolled end 51. Through the arc-shaped rolled end 51 exposed on the guide sleeve 4, the problem of oily gas entering the proportional electromagnet can be better prevented.

[0038] The structure of this utility model can enhance the sealing performance of the proportional electromagnet, improve its operational stability, extend its service life, and improve its energy efficiency.

[0039] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A proportional solenoid with a seal structure comprising a housing, a coil assembly, an armature and a guide sleeve, characterized in that, The armature is arranged in the guide sleeve, the shell is arranged outside the guide sleeve, the coil assembly is arranged between the guide sleeve and the shell, and the position of the armature corresponds to the position of the coil assembly; the armature is respectively provided with a high-voltage side push rod and a low-voltage measurement push rod at both ends, the guide sleeve is provided with a push rod through hole, the high-voltage side push rod passes through the push rod through hole and extends outside the guide sleeve, and the position of the push rod through hole in the guide sleeve is provided with a sealing rubber ring.

2. A proportional solenoid with a sealing structure according to claim 1, characterized in that, The sealing rubber ring is a fluorosilicone rubber dustproof ring.

3. The proportional solenoid with a sealing structure according to claim 1, wherein The guide sleeve is further provided with a rubber ring accommodating port, and the sealing rubber ring is arranged in the rubber ring accommodating port.

4. The proportional solenoid with a sealing structure according to claim 1, wherein The sealing rubber ring is sleeved on the push rod through hole, and one end of the sealing rubber ring extends from the inside of the guide sleeve to the outside of the guide sleeve.

5. A proportional solenoid with a sealing structure according to claim 4, wherein The end of the sealing rubber ring exposed to the guide sleeve has a circular arc-shaped roll.

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