Automatic drainage system for vehicle air filter element

Abstract

The utility model discloses an automatic drainage system for a vehicle air filter element, and belongs to the technical field of vehicle air inlet systems. The system mainly comprises an air filter assembly, a power supply, a normally-closed electromagnetic valve, a water inductive switch and a relay. Positive and negative poles of the power supply are respectively connected with corresponding poles of each component to form a specific circuit, the water inductive switch is arranged at the bottom of the air filter assembly, a detection end is arranged inside the water inductive switch, and a normally-closed electromagnetic valve is arranged at a bottom water outlet of the air filter assembly. The problem that after water enters a vehicle air filter element, water drainage is not timely, and an engine is prone to being damaged is solved. When water enters the air filter assembly, the water-liquid sensing switch is switched on, the relay acts to open the normally-closed electromagnetic valve to drain water, and the system automatically recovers to the initial state after water is completely drained. The engine can be effectively prevented from being damaged due to water inflow, and the safety and reliability of the engine are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle air intake systems, and in particular to an automatic drainage system for vehicle air filters. Background Technology

[0002] During vehicle use, the air filter plays a crucial role. It protects the engine by blocking impurities and particulate matter in the air, preventing them from causing wear or blockage to internal engine parts, thus ensuring the engine functions properly.

[0003] However, in actual vehicle use, cases of engine damage caused by water entering the air filter are not uncommon. As companies become increasingly stringent in their environmental protection requirements, vehicles need to be cleaned daily. While cleaning can achieve multi-directional and thorough cleaning, water can easily enter the engine through the air filter system when the vehicle is cleaned at abnormal angles, thus causing engine damage. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an automatic drainage system for vehicle air filters, which solves the problem of engine damage caused by untimely drainage after water enters the vehicle air filter.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An automatic air filter drainage system for vehicles includes an air filter assembly, a power supply, a normally closed solenoid valve, a water-sensing switch, and a relay. The positive terminal of the power supply is connected to the positive terminals of the water-sensing switch and the relay, and the negative terminal of the power supply is connected to the negative terminals of the relay and the normally closed solenoid valve. The positive terminal of the relay is connected to the positive terminal of the normally closed solenoid valve, and the negative terminal of the relay is connected to the negative terminal of the water-sensing switch. The water-sensing switch is located at the bottom of the air filter assembly, and its detection end is located inside the air filter assembly. A drain outlet is also provided at the bottom of the air filter assembly, and a normally closed solenoid valve is installed on the drain outlet.

[0007] Compared with the prior art, the beneficial effects of this utility model are: this utility model can react quickly when water enters the air filter element and automatically drain the water, preventing water from entering the engine cylinder, thereby effectively preventing engine damage due to water ingress and greatly improving the safety and reliability of the engine. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model.

[0009] In the picture:

[0010] 1. Air filter assembly; 2. Normally closed solenoid valve; 3. Water-sensing switch; 4. Relay; 5. Drain outlet. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0012] An automatic drainage system for vehicle air filters includes an air filter assembly 1, a power supply, a normally closed solenoid valve 2, a water-sensing switch 3, and a relay 4. The positive terminal of the power supply is connected to the positive terminals of the water-sensing switch 3 and the relay 4, and the negative terminal of the power supply is connected to the negative terminals of the relay 4 and the normally closed solenoid valve 2. The positive terminal of the relay 4 is connected to the positive terminal of the normally closed solenoid valve 2, and the negative terminal of the relay 4 is connected to the negative terminal of the water-sensing switch 3. The water-sensing switch 3 is located at the bottom of the air filter assembly 1, and its detection end is located inside the air filter assembly 1. A drain outlet 5 is also provided at the bottom of the air filter assembly 1, and the normally closed solenoid valve 2 is installed on the drain outlet 5.

[0013] When the vehicle is in use, if water enters the air filter assembly 1 through the air intake due to reasons such as exterior cleaning, the water will accumulate at the bottom of the air filter assembly 1 under the influence of gravity. At this time, the water sensor switch 3 installed at the bottom of the air filter assembly 1 can sensitively sense the water ingress at the bottom of the air filter and will then turn on.

[0014] After the water-sensing switch 3 is turned on, current can flow smoothly through the electromagnetic coil of relay 4. The electromagnetic coil generates a magnetic force when current flows through it, and this magnetic force acts on the switch inside relay 4, causing it to close.

[0015] After the internal switch of relay 4 is closed, the circuit is completed, supplying power to the normally closed solenoid valve 2 of drain outlet 5. After being energized, the normally closed solenoid valve 2 starts to work, changing from the normally closed state to the open state, and the water accumulated in the air filter assembly 1 flows through drain outlet 5.

[0016] When the normally closed solenoid valve 2 is opened, the water accumulated at the bottom of the air filter assembly 1 can be discharged from the air filter through the normally closed solenoid valve 2, thereby effectively preventing water from entering the engine through the air filter system and avoiding damage to the engine due to water ingress.

[0017] Once the water inside the air filter assembly 1 is completely drained, the water sensing switch 3 no longer senses water and its state returns to normal. The change in current in the circuit causes the internal switch of the relay 4 to open, and the normally closed solenoid valve 2 loses power supply, automatically closes, and returns to the normally closed state, waiting for the next possible water inlet situation.

[0018] 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, improvements, etc., 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. An automatic drainage system for vehicle air filters, comprising an air filter assembly (1), characterized in that: It also includes a power supply, a normally closed solenoid valve (2), a water-sensing switch (3) and a relay (4). The positive terminal of the power supply is connected to the positive terminals of the water-sensing switch (3) and the relay (4), respectively. The negative terminal of the power supply is connected to the negative terminals of the relay (4) and the normally closed solenoid valve (2), respectively. The positive terminal of the relay (4) is connected to the positive terminal of the normally closed solenoid valve (2), and the negative terminal of the relay (4) is connected to the negative terminal of the water-sensing switch (3). The water-sensing switch (3) is located at the bottom of the air filter assembly (1). The detection end of the water-sensing switch (3) is located inside the air filter assembly (1). The bottom of the air filter assembly (1) is also provided with a drain outlet (5), and a normally closed solenoid valve (2) is provided on the drain outlet (5).

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