A waterproof solenoid valve coil

Abstract

The utility model discloses a waterproof solenoid valve coil, including a coil housing, a coil body installed inside the coil housing, the coil body connected to a cable wiring terminal, the cable wiring terminal installed on a mounting plate, the mounting plate installed on the top of the coil housing, a coil end cover sealed and connected to the coil housing, a wire-passing hole opened on the coil end cover, a cable seal installed inside the wire-passing hole, a cable seal nut provided above the cable seal, and the cable seal nut connected to the wire-passing hole. When the coil is in use, the end of the cable passes through the cable seal nut and the wire-passing hole to connect the cable wiring terminal, the cable seal nut is tightened to squeeze the cable seal, the cable seal is in sealed contact with the cable, and water vapor is prevented from reaching the cable wiring terminal through the wire-passing hole. A sealing ring is installed at the bottom of the coil end cover, and the sealing ring is used to achieve sealed contact between the coil end cover and the coil housing, thereby preventing water vapor from entering.

Description

Technical Field

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

[0002] The solenoid valve is a valve device that controls the flow of medium through electromagnetics. It is one of the important components of the conveying system. It can adjust the size of the medium, cut-off and other functions. It is often used in the fields of medical treatment, petrochemical, offshore operations, etc. The electromagnetic coil is a device that works on the principle of electromagnetic induction, which is composed of a wire wound around an insulating tube in circles. The wires are insulated from each other. The electromagnetic coil is a major component in the solenoid valve, responsible for the opening and closing of the solenoid valve. However, many existing solenoid valves are placed in a humid environment due to their use in fields such as offshore operations and medical treatment. Water vapor can easily enter the electromagnetic coil through the electrical channel on the solenoid valve, causing the two terminals of the electromagnetic coil to short-circuit, causing damage to the solenoid valve. Utility Model Content

[0003] The purpose of the utility model is to provide a waterproof solenoid valve coil to solve the problems mentioned in the background technology. To achieve the above purpose, the utility model provides the following technical solutions: a waterproof solenoid valve coil, including a coil housing, a coil body installed inside the coil housing, the coil body connected to the cable wiring terminal, two of the cable wiring terminals are provided and installed on a mounting plate, the mounting plate is installed on the top of the coil housing, a coil end cover is provided above the mounting plate, the coil end cover is sealed and connected to the coil housing, a wire hole is opened on the coil end cover, a cable seal is installed inside the wire hole, a cable seal clamping nut is provided above the cable seal, and the cable seal clamping nut is connected to the wire hole.

[0004] Preferably, a sealing groove is provided along the periphery of the bottom of the coil end cover, a sealing ring is installed inside the sealing groove, and the sealing ring is in sealing contact with the side wall of the coil housing and the mounting plate.

[0005] Preferably, the wire holes and the cable connection terminals are located on both sides of the top of the coil housing.

[0006] Preferably, the coil end cover is connected to the mounting plate via coil end cover fixing bolts.

[0007] Preferably, the coil end cover fixing bolts are provided with three and are distributed in a triangle along the coil end cover.

[0008] Preferably, a fixing bolt sealing groove is opened at the bottom of the coil end cover, the position of the fixing bolt sealing groove corresponds to the fixing bolt of the coil end cover, a fixing bolt sealing ring is installed inside the fixing bolt sealing groove, and the fixing bolt sealing ring is in sealing contact with the mounting plate.

[0009] The technical effects and advantages of the utility model are as follows: when the coil is in use, the end of the cable passes through the cable sealing clamping nut and the wire passing hole to connect the cable terminal, the cable sealing clamping nut is tightened to squeeze the cable seal, and the cable seal and the cable are in sealed contact, which prevents water vapor from reaching the cable terminal through the wire passing hole. A sealing ring is installed at the bottom of the coil end cover, and the sealing ring realizes a sealed contact between the coil end cover and the coil housing, thereby preventing the entry of water vapor and avoiding the short circuit of the two terminals of the electromagnetic coil as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is the front view of the utility model;

[0011] Figure 2 It is a top view of the utility model;

[0012] Figure 3 This is a top view of the present invention with the coil end cover removed;

[0013] Figure 4 for Figure 2 The cross-sectional view along the AA direction;

[0014] Figure 5 for Figure 2 Cross-sectional view along direction BB.

[0015] In the figure, 1. coil housing; 2. coil body; 3. cable terminal; 4. mounting plate; 5. coil end cover; 6. wire hole; 7. cable seal; 8. cable sealing compression nut; 9. sealing groove; 10. sealing ring; 11. coil end cover fixing bolt; 12. fixing bolt sealing groove; 13. fixing bolt sealing ring; 14. cable. DETAILED DESCRIPTION

[0016] In order to make the technical means for realizing the utility model, creative features, objectives and effects easy to understand, the utility model is further explained below in conjunction with specific diagrams. In the description of the utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an integral connection or a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two components.

[0017] Example

[0018] like Figure 1-Figure 5A waterproof solenoid valve coil is shown, comprising a coil housing 1, a coil body 2 is installed inside the coil housing 1, the coil body 2 is connected to a cable wiring terminal 3, two cable wiring terminals 3 are provided, which are installed on a mounting plate 4, the mounting plate 4 is sealingly installed on the top of the coil housing 1, a coil end cover 5 is provided above the mounting plate 4, the coil end cover 5 is sealingly connected to the coil housing 1, a wire hole 6 is opened on the coil end cover 5, the wire hole 6 is used for the passage of the cable, a cable seal 7 is installed inside the wire hole 6, the cable seal 7 can be made of rubber material, a cable sealing clamping nut 8 is provided above the cable seal 7, and the cable sealing clamping nut 8 is connected to the wire hole 6.

[0019] In order to achieve sealing between the coil end cover 5 and the coil housing 1 , a sealing groove 9 is provided along the periphery of the bottom of the coil end cover 5 , and a sealing ring 10 is installed inside the sealing groove 9 . The sealing ring 10 is in sealing contact with the side wall of the coil housing 1 and the mounting plate 4 .

[0020] The wire hole 6 and the cable terminal 3 are located at both sides of the top of the coil housing 1, so that the two are staggered with each other, which is convenient for installation and can also reduce the influence of water vapor.

[0021] In order to ensure the firmness of the installation of the coil end cover 5 , the coil end cover 5 is connected to the mounting plate 4 via the coil end cover fixing bolts 11 , and three coil end cover fixing bolts 11 are provided and distributed in a triangle along the coil end cover 5 .

[0022] In order to prevent water vapor from entering the connection between the coil end cover fixing bolts 11, a fixing bolt sealing groove 12 is opened at the bottom of the coil end cover 5, and the position of the fixing bolt sealing groove 12 corresponds to the coil end cover fixing bolts 11. A fixing bolt sealing ring 13 is installed inside the fixing bolt sealing groove 12, and the fixing bolt sealing ring 13 is in sealing contact with the mounting plate 4.

[0023] The process flow and working principle of the utility model are as follows: when the solenoid valve coil is used, one end of the cable 14 is passed through the cable sealing compression nut 8 and the wire through hole 6 to connect the cable wire terminal 3, the cable sealing compression nut 8 is tightened to squeeze the cable seal 7, the cable seal 7 and the cable 14 are in sealed contact, and water vapor is prevented from reaching the cable wire terminal 3 through the wire through hole 6, the coil end cover 5 is fixed by the coil end cover fixing bolts 11, and the sealing ring 10 at the bottom of the coil end cover 5 is in sealed contact with the mounting plate 4 and the coil housing 1, thereby preventing water vapor from entering.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof solenoid valve coil, comprising a coil housing, characterized in that: A coil body is installed inside the coil shell, and the coil body is connected to a cable terminal. Two cable terminals are provided and installed on a mounting plate. The mounting plate is installed on the top of the coil shell. A coil end cover is provided above the mounting plate. The coil end cover is sealingly connected to the coil shell. A wire passing hole is opened on the coil end cover, and a cable seal is installed inside the wire passing hole. A cable sealing clamping nut is provided above the cable seal, and the cable sealing clamping nut is connected to the wire passing hole.

2. A waterproof solenoid valve coil according to claim 1, characterized in that: A sealing groove is provided along the periphery of the bottom of the coil end cover, a sealing ring is installed inside the sealing groove, and the sealing ring is in sealing contact with the side wall of the coil housing and the mounting plate.

3. The waterproof solenoid valve coil according to claim 1, characterized in that: The wire holes and the cable connection terminals are located on both sides of the top of the coil housing.

4. The waterproof solenoid valve coil according to claim 1, characterized in that: The coil end cover is connected to the mounting plate via coil end cover fixing bolts.

5. The waterproof solenoid valve coil according to claim 4, characterized in that: The coil end cover fixing bolts are provided with three and are distributed in a triangle along the coil end cover.

6. The waterproof solenoid valve coil according to claim 4, characterized in that: A fixing bolt sealing groove is opened at the bottom of the coil end cover, the position of the fixing bolt sealing groove corresponds to the fixing bolt of the coil end cover, a fixing bolt sealing ring is installed inside the fixing bolt sealing groove, and the fixing bolt sealing ring is in sealing contact with the mounting plate.

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