Solenoid valve

Abstract

The utility model provides an electromagnetic valve, which comprises a coil component, an electromagnetic component and a control component, the attractor is arranged at one end of the mounting hole; the sleeve is arranged at the other end of the mounting hole; the core iron is movably arranged in the mounting hole, the core iron is provided with a first end and a second end which are oppositely arranged, the first end of the core iron is arranged in the mounting hole in a penetrating mode and used for being in magnetic fit with the attractor, and at least part of the second end of the core iron is arranged in the sleeve in a penetrating mode. By means of the scheme, the problems that in the prior art, a sleeve of an electromagnetic valve is arranged in a coil component in a penetrating mode, an attractor and a core iron are arranged in the sleeve, the diameter of the attractor and the diameter of the core iron need to be reduced, and the attraction force of the attractor and the core iron is affected can be solved.

Description

Technical Field

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

[0002] The driving part of the solenoid valve includes a coil component, a sleeve, an attractor and a core iron, wherein the sleeve is inserted into the coil component, the attractor is arranged in the sleeve, the core iron is movably arranged in the sleeve, and the core iron and the attractor are magnetically matched. If the attractor and the core iron are all arranged inside the sleeve, the diameter of the attractor and the core iron will be reduced, affecting the suction force of the attractor and the core iron, and affecting the stability of the solenoid valve. Utility Model Content

[0003] The utility model provides a solenoid valve to solve the problem that the sleeve of the solenoid valve in the prior art is passed through a coil component, and the attractor and the core iron are arranged in the sleeve, which requires reducing the diameters of the attractor and the core iron, thus affecting the suction force of the attractor and the core iron.

[0004] The utility model provides a solenoid valve, which comprises: a coil component, which is provided with a mounting hole; an attractor, which is arranged at one end of the mounting hole; a sleeve, which is arranged at the other end of the mounting hole; a core iron, which is movably arranged in the mounting hole, and the core iron has a first end and a second end which are arranged oppositely, the first end of the core iron is passed through the mounting hole and is used to cooperate with the magnetic force of the attractor, and at least a part of the second end of the core iron is passed through the sleeve.

[0005] Further, the first end of the core iron is in guiding cooperation with the mounting hole; and / or the second end of the core iron is in guiding cooperation with the sleeve.

[0006] Furthermore, one end of the sleeve is inserted into an end of the mounting hole away from the attractor and cooperates with the coil component in a circumferential limiting manner.

[0007] Furthermore, the coil component includes: a magnetic conductive frame, including a first mounting plate, a second mounting plate and a connecting plate, the first mounting plate and the second mounting plate are spaced apart, the two ends of the connecting plate are respectively connected to the first mounting plate and the second mounting plate, and an avoidance hole is provided on the second mounting plate; a coil body, arranged in the magnetic conductive frame, the mounting hole penetrates the coil body along the direction from the first mounting plate to the second mounting plate, the attractor is fixed in the mounting hole, the mounting hole is connected to the avoidance hole, and one end of the sleeve passes through the avoidance hole and extends into the mounting hole.

[0008] Furthermore, the attractor and the coil body are fixedly connected through an injection molding process.

[0009] Furthermore, a step structure is provided in the mounting hole, the attractor is axially limitedly matched with the step structure, and the step structure is matched with the first mounting plate to fix the attractor in the mounting hole.

[0010] Furthermore, the attractor is welded to the first mounting plate.

[0011] Furthermore, the solenoid valve also includes a fastener, and the first mounting plate and the attractor are fixedly connected by the fastener.

[0012] Furthermore, the solenoid valve also includes: a valve seat body, which is arranged at one end of the sleeve away from the coil component, the valve seat body is provided with a valve port and a valve cavity which are interconnected, and the valve cavity is connected to the sleeve to form an installation cavity; a valve needle component, which is movably arranged in the valve cavity, and the core iron is driven to cooperate with the valve needle component to block or open the valve port.

[0013] Furthermore, the valve seat body and the sleeve are integrally formed.

[0014] By applying the technical solution of the utility model, one end of the core iron close to the attractor is inserted into the mounting hole, and the other end of the core iron is inserted into the sleeve. In the traditional technical solution, the sleeve of the valve seat component is inserted into the mounting hole, and the attractor and the core iron are both located in the sleeve. Compared with the traditional technical solution, when the size of the mounting hole of the coil component is determined, the setting of this solution can increase the diameter of the attractor and the diameter of the end of the core iron close to the attractor as much as possible, thereby improving the suction force of the attractor and the core iron, and improving the working stability of the solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 The structure diagram of the solenoid valve provided by the utility model is shown;

[0017] Figure 2 A schematic diagram showing the structure of another coil component and attractor provided by an embodiment of the utility model;

[0018] Figure 3 A schematic structural diagram of another coil component and attractor provided in an embodiment of the utility model is shown.

[0019] The above drawings include the following reference numerals:

[0020] 10. Coil component; 101. Mounting hole; 1011. Step structure;

[0021] 11. magnetic guide frame; 111. first mounting plate; 112. second mounting plate; 1121. avoidance hole;

[0022] 12. Coil body;

[0023] 20. valve seat component; 201. mounting cavity; 202. valve port;

[0024] 21. Valve seat body; 22. Casing;

[0025] 30. Valve needle parts;

[0026] 40. Attractor;

[0027] 50. Core iron;

[0028] 60. Fasteners;

[0029] 70. Sealing ring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figure 1 As shown, an embodiment of the utility model provides a solenoid valve, which includes a coil component 10, a sleeve 22 and a core iron 50. The coil component 10 is provided with a mounting hole 101. The attractor 40 is arranged at one end of the mounting hole 101. The sleeve 22 is arranged at the other end of the mounting hole 101. The core iron 50 is movably arranged in the mounting hole 101, and the core iron 50 has a first end and a second end that are arranged oppositely, the first end is penetrated in the mounting hole 101 and is used for magnetically cooperating with the attractor 40, and the second end is at least partially penetrated in the sleeve 22.

[0032] By applying the technical solution of the present utility model, one end of the core iron 50 close to the attractor 40 is inserted into the mounting hole 101, and the other end of the core iron 50 is inserted into the sleeve 22. In the traditional technical solution, the sleeve is inserted into the mounting hole, and the attractor and the core iron are both located in the sleeve. Compared with the traditional technical solution, when the size of the mounting hole 101 of the coil component 10 is determined, the setting of this solution can increase the diameter of the attractor 40 and the diameter of one end of the core iron 50 close to the attractor 40 as much as possible, thereby improving the suction force of the attractor 40 and the core iron 50, and improving the working stability of the solenoid valve.

[0033] In this embodiment, the solenoid valve further includes a valve seat body 21, which is arranged at one end of the sleeve 22 away from the coil component 10, and the valve seat body 21 and the sleeve 22 cooperate to form a valve seat component 20. The valve seat body 21 is provided with a valve cavity and a valve port 202 that are interconnected, and the valve cavity is connected to the sleeve 22 to form an installation cavity 201. The solenoid valve further includes a valve needle component 30, which is movably arranged in the valve cavity, and the core iron 50 is driven to cooperate with the valve needle component 30 so that the valve needle component 30 blocks or opens the valve port 202.

[0034] Specifically, the valve seat body 21 and the sleeve 22 are integrally formed. Such an arrangement can ensure the sealing performance of the valve seat component 20 and the structural stability of the valve seat component 20.

[0035] In this embodiment, the diameter of the first end of the core iron 50 is greater than the diameter of the second end of the core iron 50. This arrangement can increase the diameter of the end of the core iron 50 that is magnetically matched with the attractor 40 as much as possible, thereby increasing the attraction between the attractor 40 and the core iron 50.

[0036] Furthermore, the first end of the core iron 50 is guided and matched with the mounting hole 101. Such an arrangement can improve the smoothness of the movement of the core iron 50.

[0037] Furthermore, the second end of the core iron 50 is guided and matched with the sleeve 22. Such an arrangement can further improve the smoothness of the movement of the core iron 50.

[0038] In this embodiment, a communication hole is provided on the side wall of the valve seat body 21, and the communication hole is communicated with the valve cavity. A balancing hole is provided on the core iron 50, and the balancing hole is provided through the core iron 50 along the axial direction of the core iron 50.

[0039] Furthermore, the end of the valve needle component 30 away from the core iron 50 is protruding toward the valve port 202 away from the coil component 10 , and the end of the valve needle component 30 away from the core iron 50 is sleeved with a sealing ring 70 for sealingly cooperating with the valve port 202 .

[0040] In this solution, one end of the sleeve 22 is inserted into the end of the mounting hole 101 away from the attractor 40 and is limitedly matched with the coil component 10 in the circumferential direction. This arrangement can improve the installation stability between the sleeve 22 and the coil component 10, prevent the sleeve 22 and the coil component 10 from relative movement in the axial direction, and prevent the sleeve 22 and the coil component 10 from relative rotation in the circumferential direction.

[0041] The sleeve 22 and the mounting hole 101 may be configured as a transition fit.

[0042] In this embodiment, the coil component 10 includes a magnetic frame 11 and a coil body 12. The magnetic frame 11 is roughly C-shaped, and includes a first mounting plate 111, a second mounting plate 112 and a connecting plate. The first mounting plate 111 and the second mounting plate 112 are spaced apart, and the two ends of the connecting plate are respectively connected to the first mounting plate 111 and the second mounting plate 112, and the second mounting plate 112 is provided with an avoidance hole 1121. The coil body 12 is arranged in the magnetic frame 11, and the mounting hole 101 is arranged along the direction from the first mounting plate 111 to the second mounting plate 112, and the attractor 40 is fixed in the mounting hole 101, and the attractor 40 abuts against the first mounting plate 111, and the mounting hole 101 is connected with the avoidance hole 1121, and the end of the sleeve 22 away from the valve seat body 21 passes through the avoidance hole 1121 and then extends into the mounting hole 101. In this way, the structure is simple and it is convenient to assemble the coil component 10 and the valve seat component 20.

[0043] This solution does not limit the specific connection method between the attractor 40 and the coil component 10.

[0044] like Figure 1 As shown, in some embodiments of the present solution, the solenoid valve further comprises a fastener 60, a connection hole is provided on the first mounting plate 111, and one end of the fastener 60 passes through the connection hole and is threadedly connected to the attractor 40. Such a configuration has a simple structure and is easy to assemble.

[0045] like Figure 2 As shown, in some other embodiments of the present invention, the attractor 40 is welded to the first mounting plate 111. With such arrangement, the operation is more convenient.

[0046] like Figure 3 As shown, in some other embodiments of the present invention, the attractor 40 is fixedly connected to the coil body 12 by injection molding. Specifically, the attractor 40 can be fixed in the mounting hole 101 during the process of injection molding the encapsulation layer of the coil body 12.

[0047] Specifically, a step structure 1011 is provided in the mounting hole 101, that is, the mounting hole 101 is a step hole, the attractor 40 is axially limitedly matched with the step structure 1011, and the step structure 1011 is matched with the first mounting plate 111 to fix the attractor 40 in the mounting hole 101. Such a configuration can improve the accuracy and stability of the relative position fixation between the attractor 40 and the coil body 12.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0050] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0053] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A solenoid valve, characterized in that: include: The coil component (10) is provided with a mounting hole (101); An attractor (40) is arranged at one end of the mounting hole (101); A sleeve (22) is arranged at the other end of the mounting hole (101); A core iron (50) is movably arranged in the mounting hole (101), and the core iron (50) has a first end and a second end that are arranged opposite to each other, the first end is inserted into the mounting hole (101) and is used to magnetically cooperate with the attractor (40), and the second end is at least partially inserted into the sleeve (22).

2. The solenoid valve according to claim 1, characterized in that: The first end of the core iron (50) is guided and matched with the mounting hole (101); and / or, The second end of the core iron (50) is guided and matched with the sleeve (22).

3. The solenoid valve according to claim 1, characterized in that: One end of the sleeve (22) is inserted into an end of the mounting hole (101) away from the attractor (40) and is engaged with the coil component (10) in a circumferential limiting manner.

4. The solenoid valve according to claim 1, characterized in that: The coil component (10) comprises: A magnetic conductive frame (11), comprising a first mounting plate (111), a second mounting plate (112) and a connecting plate, wherein the first mounting plate (111) and the second mounting plate (112) are spaced apart, two ends of the connecting plate are respectively connected to the first mounting plate (111) and the second mounting plate (112), and the second mounting plate (112) is provided with an avoidance hole (1121); The coil body (12) is arranged in the magnetic conductive frame (11); the mounting hole (101) is arranged to pass through the coil body (12) along the direction from the first mounting plate (111) to the second mounting plate (112); the attractor (40) is fixed in the mounting hole (101); the mounting hole (101) is connected to the avoidance hole (1121); and one end of the sleeve (22) passes through the avoidance hole (1121) and then extends into the mounting hole (101).

5. The solenoid valve according to claim 4, characterized in that: The attractor (40) is fixedly connected to the coil body (12) through an injection molding process.

6. The solenoid valve according to claim 5, characterized in that: A step structure (1011) is provided in the mounting hole (101), the attractor (40) cooperates with the step structure (1011) in axial limiting manner, and the step structure (1011) cooperates with the first mounting plate (111) to fix the attractor (40) in the mounting hole (101).

7. The solenoid valve according to claim 4, characterized in that: The attractor (40) is welded to the first mounting plate (111).

8. The solenoid valve according to claim 4, characterized in that: The solenoid valve further comprises a fastener (60), and the first mounting plate (111) and the attractor (40) are fixedly connected via the fastener (60).

9. The solenoid valve according to claim 1, characterized in that: The solenoid valve further comprises: a valve seat body (21) arranged at one end of the sleeve (22) away from the coil component (10), the valve seat body (21) being provided with a valve port (202) and a valve cavity which are communicated with each other, the valve cavity being communicated with the sleeve (22) to form a mounting cavity (201); The valve needle component (30) is movably arranged in the valve cavity, and the core iron (50) is driven to cooperate with the valve needle component (30) so that the valve needle component (30) blocks or opens the valve port (202).

10. The solenoid valve according to claim 9, characterized in that: The valve seat body (21) and the sleeve (22) are integrally formed.

Images