Solenoid valve structure
By introducing magnetic holding elements into the solenoid valve, the valve core is attracted and maintained at the open position, the problem of high power consumption of existing solenoid valves outdoors or in vehicles is solved, and the effect of reducing power consumption and extending operating time is achieved.
Patent Information
- Application Number
- CN202520545502.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2035-03-26
AI Technical Summary
When existing solenoid valves are used outdoors or in vehicles, the coil needs to be continuously powered on to keep the valve core open, resulting in high power consumption problems.
The solenoid valve structure is adopted that magnetically absorbs and maintains the valve core position. By providing a magnetic holding element in the valve body, the valve core is so as to attract and engage the magnetic holding element in the open position, so as to disconnect the coil electrical connection when no electromagnetic force is required, reducing power consumption.
It realizes reducing power consumption and extending operating time without affecting the opening and closing performance of the solenoid valve.
Smart Images
Figure CN222823741U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic valves, in particular to a electromagnetic valve structure. Background Art
[0002] A solenoid valve is an actuator that controls the flow of fluid through electromagnetic force. Its core structure includes a coil assembly, a valve core (moving iron core) and a return spring. In conventional designs:
[0003] Opening process: When the coil is energized, the electromagnetic force overcomes the spring preload and fluid pressure, driving the valve core to move to the open position to form a passage.
[0004] Holding state: To maintain the valve core in the open position, the coil needs to be continuously energized to provide electromagnetic force to balance the spring return force and the fluid dynamic pressure.
[0005] Closing process: After power is cut off, the electromagnetic force disappears, and the spring pushes the valve core back to the closed position, cutting off the passage.
[0006] Based on the above, in the prior art, the solenoid valve needs to rely on the coil to be continuously energized to keep the valve core open. When the solenoid valve is used outdoors or in a vehicle, these uses all use outdoor power supplies or vehicle power supplies for power supply. The solenoid valve is always energized, resulting in high power consumption, which needs further improvement. Utility Model Content
[0007] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a solenoid valve structure that uses magnetic attraction to maintain the position of the valve core.
[0008] A solenoid valve structure designed for this purpose comprises a valve body, a valve cavity is arranged in the valve body, a first port and a second port are arranged in communication with the valve cavity, and a valve core is arranged in the valve cavity;
[0009] The valve core is movably arranged relative to the valve cavity so that the valve core moves from a first position to a second position;
[0010] When the valve core is located at the first position, the valve core blocks the second port;
[0011] When the valve core is located at the second position, the second port is communicated with the valve cavity;
[0012] The valve body is provided with a magnetic holding element. When the valve core moves to the second position, the valve core and the magnetic holding element are attracted to each other to keep the valve core in the second position.
[0013] Preferably, the valve body is provided with a third port interconnected with the valve cavity;
[0014] When the valve core is located at the second position, the valve core blocks the communication between the third port and the valve cavity;
[0015] When the valve core is located at the first position, the third port is communicated with the valve cavity.
[0016] Preferably, the magnetic retaining element comprises a permanent magnet disposed on the valve body.
[0017] Preferably, a seal is provided between the permanent magnet and the valve core.
[0018] Preferably, the sealing element is an iron core.
[0019] Preferably, the peripheral wall of the sealing member is provided with an annular groove, and a sealing ring is provided in the annular groove and fits with the inner wall of the valve cavity.
[0020] Preferably, the valve body is provided with a coil assembly for driving the valve core to move from the first position to the second position.
[0021] Preferably, an elastic element for pushing the valve core to move from the second position to the first position is provided in the valve cavity.
[0022] Preferably, the third port is arranged on the upper surface of the valve body;
[0023] The second port is disposed on the lower surface of the valve body;
[0024] The valve chamber is disposed between the third port and the second port;
[0025] A communicating flow channel is formed between the inner wall of the valve cavity and the valve body.
[0026] Compared with the prior art, the utility model has the advantages that when the valve core is moved to the second position by the coil assembly under the action of the magnetic holding element, the valve core and the magnetic holding element are attracted to each other to keep the valve core in the second position. At this time, the electrical connection of the coil assembly can be disconnected to reduce power consumption and increase the operating time. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0028] Figure 2 This is a schematic diagram of the first embodiment of the utility model;
[0029] Figure 3 This is a schematic diagram of a second embodiment of the present utility model. DETAILED DESCRIPTION
[0030] The following detailed description of the implementation of the technical solution of the present application is provided in conjunction with the accompanying drawings. The following implementation is only used to more clearly illustrate the technical solution of the present application, and is therefore only used as an example, and cannot be used to limit the scope of protection of the present application.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific implementation methods and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.
[0032] In the description of the implementation methods of the present application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary and secondary relationship of the indicated technical features.
[0033] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0034] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0035] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).
[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.
[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0038] See also Figure 1-Figure 3 , a solenoid valve structure, including a valve body 10, wherein a valve cavity 100 is arranged in the valve body 10, wherein the valve body 10 is provided with a first port 110 and a second port 120 which are interconnected with the valve cavity 100, and a valve core 20 is arranged in the valve cavity 100; the valve core 20 is movably arranged relative to the valve cavity 100 so that the valve core 20 moves from a first position to a second position; when the valve core 20 is located at the first position, the valve core 20 blocks the second port 120 so that the second port 120 and the valve cavity 100 are not interconnected; when the valve core 20 is located at the second position, the second port 120 and the valve cavity 100 are interconnected; the valve body 10 is provided with a magnetic holding element 30, and when the valve core 20 moves to the second position, the valve core 20 and the magnetic holding element 30 are attracted to each other so that the valve core 20 is maintained at the second position. In this embodiment, under the action of the magnetic holding element, when the valve core is moved to the second position by the coil assembly, the valve core and the magnetic holding element are attracted to each other to keep the valve core in the second position. At this time, the electrical connection of the coil assembly can be disconnected to reduce power consumption and increase operating time.
[0039] like Figure 3As shown, in the second embodiment of the utility model, the valve body 10 is provided with a third port 130 which is interconnected with the valve cavity 100; when the valve core 20 is in the second position, the valve core 20 blocks the interconnection between the third port 130 and the valve cavity 100; when the valve core 20 is in the first position, the third port 130 is interconnected with the valve cavity 100. The third port provided in the utility model is used to make the entire solenoid valve a three-way solenoid valve.
[0040] When the valve core 20 is in the first position, the first port 110 , the valve cavity 100 , and the third port 130 are connected in sequence.
[0041] When the valve core 20 is in the second position, the first port 110 , the valve cavity 100 , and the second port 120 are connected in sequence.
[0042] like Figure 2 and Figure 3 As shown, the magnetic retaining element 30 includes a permanent magnet 300 disposed on the valve body 10 .
[0043] like Figure 2 and Figure 3 As shown, the permanent magnet 300 is disposed in the valve cavity 100, and a first communication channel 310 is disposed in the permanent magnet 300 to connect the third port 130 with the valve cavity 100. When the valve core 20 is in the first position, the fluid is input from the first port 110, flows into the valve cavity 100, and then output to the outside of the valve body 10 through the first communication channel 310 and the third port 130.
[0044] like Figure 2 and Figure 3 As shown, a sealing member 50 is provided between the permanent magnet 300 and the valve core 20 .
[0045] like Figure 2 and Figure 3 As shown, in the embodiment provided with the third port 130 , the sealing member 50 is provided with a second communication channel 520 which is in communication with the first communication channel 310 .
[0046] like Figure 2 As shown, in an embodiment in which a third port 130 is provided, the third port 130 is provided on the upper surface of the valve body 10; the second port 120 is provided on the lower surface of the valve body 10; the valve cavity 100 is provided between the third port 130 and the second port 120; and a connecting flow channel 140 is formed between the inner wall of the valve cavity 100 and the valve body 10.
[0047] In the present invention, the sealing member 50 is an iron core.
[0048] like Figure 2 and Figure 3 As shown, the peripheral wall of the sealing member 50 is provided with an annular groove 510 , and a sealing ring 60 is provided in the annular groove 510 to fit with the inner wall of the valve cavity 100 .
[0049] like Figure 2 and Figure 3 As shown, the valve body 10 is provided with a coil assembly 40 for driving the valve core 20 to move from the first position to the second position.
[0050] like Figure 2 and Figure 3 As shown, an elastic element 70 is disposed in the valve cavity 100 for pushing the valve core 20 to move from the second position to the first position.
[0051] like Figure 3 As shown, the valve core 20 includes a valve core base 210 with a hollow interior, and a sealing element 220 is disposed in the valve core base 210 .
[0052] Furthermore, the sealing element 220 is a rubber component. The function of the sealing element 220 is that it is a soft component and can improve the sealing performance to ensure airtightness when it is fitted.
[0053] Furthermore, limiting portions 230 are provided at both ends of the sealing element 220 , and the diameter of the limiting portions 230 is larger than the diameter of the sealing element 220 . This design allows the sealing element 220 to be retained inside the valve core base 210 without falling off.
[0054] Furthermore, the sealing element 220 is disposed inside the valve core base 210 by injection molding.
[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
[0056] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A solenoid valve structure, comprising a valve body (10), wherein a valve cavity (100) is arranged in the valve body (10), wherein the valve body (10) is provided with a first port (110) and a second port (120) which are mutually communicated with the valve cavity (100), and wherein a valve core (20) is arranged in the valve cavity (100); The valve core (20) is movably arranged relative to the valve chamber (100) so that the valve core (20) moves from a first position to a second position; When the valve core (20) is located at the first position, the valve core (20) blocks the second port (120); When the valve core (20) is located at the second position, the second port (120) and the valve cavity (100) are in communication with each other; Features: The valve body (10) is provided with a magnetic holding element (30), and when the valve core (20) moves to the second position, the valve core (20) and the magnetic holding element (30) attract each other, so that the valve core (20) is held in the second position; The valve core (20) comprises a valve core base body (210) which is hollow inside, and a sealing element (220) is arranged inside the valve core base body (210).
2. A solenoid valve structure according to claim 1, characterized in that: The valve body (10) is provided with a third port (130) which is in communication with the valve cavity (100); When the valve core (20) is located at the second position, the valve core (20) blocks the mutual communication between the third port (130) and the valve cavity (100); When the valve core (20) is located at the first position, the third port (130) and the valve cavity (100) are in communication with each other.
3. A solenoid valve structure according to claim 1 or 2, characterized in that: The magnetic retaining element (30) comprises a permanent magnet (300) arranged on the valve body (10).
4. The solenoid valve structure according to claim 3, characterized in that: A sealing member (50) is provided between the permanent magnet (300) and the valve core (20).
5. The solenoid valve structure according to claim 4, characterized in that: The sealing element (50) is an iron core.
6. The solenoid valve structure according to claim 4, characterized in that: The peripheral wall of the sealing member (50) is provided with an annular groove (510), and a sealing ring (60) is provided in the annular groove (510) and is in contact with the inner wall of the valve cavity (100).
7. The solenoid valve structure according to claim 1, characterized in that: The valve body (10) is provided with a coil assembly (40) for driving the valve core (20) to move from a first position to a second position.
8. The solenoid valve structure according to claim 1, characterized in that: An elastic element (70) is arranged in the valve cavity (100) and is used to push the valve core (20) to move from the second position to the first position.
9. The solenoid valve structure according to claim 2, characterized in that: The third port (130) is arranged on the upper surface of the valve body (10); The second port (120) is arranged on the lower surface of the valve body (10); The valve chamber (100) is arranged between the third port (130) and the second port (120); A communicating flow channel (140) is formed between the inner wall of the valve cavity (100) and the valve body (10).