Fire-fighting water spraying electromagnetic valve for electric vehicle charging station
By designing a solenoid valve with a movable iron core and sealing gasket structure in the fire protection system of electric vehicle charging stations, the problems of insufficient pressure and waterproofing were solved, enabling a wider spraying range and a longer service life.
Patent Information
- Application Number
- CN202423287537.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The pressure value of the solenoid valve in the existing fire protection system of electric vehicle charging station is insufficient, resulting in low water pressure from the sprinkler head, limited coverage, and a lack of waterproof function, which shortens the service life.
A fire sprinkler solenoid valve for electric vehicle charging stations was designed. It adopts a movable iron core and sealing gasket structure, increases the spring force to more than 15KG, and sets multiple water outlets on the valve head. Combined with the sealing gasket, it prevents water from entering the interior, thus achieving multiple water outlets and rust prevention functions.
The increased outlet pressure of the solenoid valve allows one solenoid coil to correspond to multiple outlets, resulting in a larger spraying range and extended service life of the solenoid valve.
Smart Images
Figure CN223498872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic valve technology, specifically a fire sprinkler electromagnetic valve for electric vehicle charging stations. Background Technology
[0002] Electric vehicles are now widely used, and the demand for charging is increasing. As a result, a large number of charging stations have been built, which also creates a significant fire safety requirement for these stations. The fire sprinkler systems in existing charging stations are equipped with automated sensing systems that can automatically detect and activate the sprinkler system to extinguish fires or smoke.
[0003] Existing automatic fire-fighting systems in charging stations use solenoid valves for sprinkler heads, which offer advantages such as fast response and timely water spraying. However, the solenoid valves used in current electric vehicle charging station fire-fighting systems suffer from insufficient water pressure due to the small size of the solenoid coils. Each solenoid coil supplies only one outlet, typically providing only 3-4 kg of pressure, resulting in insufficient water output and short range. Therefore, when a fire is large or distant, existing solenoid valve sprinkler heads cannot meet the requirements. While adding more sprinkler heads could increase costs, it wouldn't solve the problem of fires being unable to be extinguished when the fire is far from the sprinkler head. Furthermore, existing solenoid valves lack waterproofing, allowing water to easily enter the valve body, causing internal rust and reducing its lifespan. Summary of the Invention
[0004] (a) Technical problems to be solved.
[0005] To address the shortcomings of existing technologies, this utility model provides a fire sprinkler solenoid valve for electric vehicle charging stations, which solves the problems mentioned in the background art, such as insufficient pressure value of the solenoid valve, insufficient number of nozzles, resulting in inadequate fire response and limited service life.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a fire sprinkler solenoid valve for electric vehicle charging stations, comprising an electromagnetic coil base, a valve head, and the solenoid valve further comprising a valve core sleeve, a spring, a movable iron core, and a sealing gasket. The spring is sleeved on one end of the movable iron core and inserted into the valve core sleeve. The valve core sleeve is inserted into the electromagnetic coil base and fixed. The other end of the movable iron core is connected to the sealing gasket and inserted into the valve head. The valve head is connected and fixed to the electromagnetic coil base.
[0007] Preferably, the valve head has a valve head inlet and a valve head outlet.
[0008] Preferably, the valve head outlet has four or more outlets, and the number of movable iron cores, sealing gaskets and valve head outlets is the same.
[0009] Preferably, the spring force is 15KG or more.
[0010] Preferably, the movable iron core has a stepped structure, with a spring fitted at the thinner end.
[0011] Preferably, the valve core sleeve is disc-shaped near one end of the valve head and has a protrusion on its outer edge. A groove is provided inside the protrusion, and the outer edge of the sealing gasket is installed in the groove.
[0012] This utility model provides a fire sprinkler solenoid valve for electric vehicle charging stations, which has the following beneficial effects: 1. By increasing the spring force to more than 15KG, which is 3 times the pressure value of the solenoid valve in the prior art, the pressure at the outlet of the solenoid valve is increased, so that one solenoid coil can correspond to more than 4 outlets, making the water sprayed from the nozzle more and farther, and the spraying area larger.
[0013] 2. The sealing gasket serves as both a switch for the inlet and outlet of the water valve and prevents water from entering the solenoid valve and causing it to rust, thus increasing the service life of the solenoid valve. Attached Figure Description
[0014] Figure 1 This is an exploded view of the present invention.
[0015] Figure 2 This is a cross-sectional schematic diagram of the present invention.
[0016] Figure 3 This is a schematic diagram of the assembly of this utility model.
[0017] In the diagram: 1. Electromagnetic coil base; 2. Valve head; 3. Valve core sleeve; 4. Spring; 5. Movable iron core; 6. Sealing gasket; 21. Valve head inlet; 22. Valve head outlet. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figures 1-3This utility model provides a fire sprinkler solenoid valve for electric vehicle charging stations, including an electromagnetic coil base, a valve head, a valve core sleeve, a spring, a movable iron core, and a sealing gasket. The movable iron core has a stepped structure, with a spring sleeved at the thinner end. The spring is sleeved on one end of the movable iron core and placed inside the valve core sleeve. The valve core sleeve is inserted into the electromagnetic coil base and fixed. The other end of the movable iron core is connected to the sealing gasket and inserted into the valve head. The valve head is connected and fixed to the electromagnetic coil base. The valve head has a valve head inlet and a valve head outlet, with more than four valve head outlets. The number of movable iron cores, sealing gaskets, and valve head outlets is the same. The spring force is more than 15KG. The valve core sleeve is disc-shaped near the valve head end and has a protrusion on the outer edge. A groove is provided inside the protrusion, and the outer edge of the sealing gasket is installed in the groove.
[0020] Working principle: When the solenoid valve is not energized, the movable iron core, under the action of the spring force, presses against the sealing gasket. At this time, the channel inside the valve head is blocked by the sealing ring, and the water outlet and inlet are disconnected. When the external sensor detects fire or smoke, it sends a signal, energizes the solenoid valve, and the electromagnetic coil in the electromagnetic coil base generates magnetic force, which overcomes the spring force. The movable iron core moves to one end of the electromagnetic coil base, driving the sealing gasket to open the channel inside the valve head. At this time, the water inlet and outlet are connected, and water begins to spray from the outlet.
[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fire sprinkler solenoid valve for electric vehicle charging stations, comprising an electromagnetic coil base (1) and a valve head (2), characterized in that: The solenoid valve also includes a valve core sleeve (3), a spring (4), a movable iron core (5), and a sealing gasket (6). The spring (4) is sleeved on one end of the movable iron core (5) and placed inside the valve core sleeve (3). The valve core sleeve (3) is inserted into the electromagnetic coil base (1) and fixed. The other end of the movable iron core (5) is connected to the sealing gasket (6) and inserted into the valve head (2). The valve head (2) is connected and fixed to the electromagnetic coil base (1).
2. The fire sprinkler solenoid valve for an electric vehicle charging station according to claim 1, characterized in that: The valve head (2) is provided with a valve head inlet (21) and a valve head outlet (22).
3. A fire sprinkler solenoid valve for an electric vehicle charging station according to claim 2, characterized in that: The valve head outlet (22) has more than 4 outlets, and the number of movable iron cores (5), sealing gaskets (6) is the same as that of valve head outlets (22).
4. A fire sprinkler solenoid valve for an electric vehicle charging station according to claim 1, characterized in that: The spring (4) has a spring force of more than 15KG.
5. A fire sprinkler solenoid valve for an electric vehicle charging station according to claim 1, characterized in that: The movable iron core (5) has a stepped structure, with a spring (4) fitted at the thinner end.
6. A fire sprinkler solenoid valve for an electric vehicle charging station according to claim 1, characterized in that: The valve core sleeve (3) is disc-shaped and has a protrusion on its outer edge near the valve head (2). A groove is provided inside the protrusion, and the outer edge of the sealing gasket (6) is installed in the groove.