Water tank liquid level induction alarm device
By using an alarm device with a combination of float and reed tube in the car water tank, the problem of the inability to achieve the lowest liquid level and the highest liquid level alarm in the prior art is solved, and the accurate monitoring and timely alarm of the water tank liquid level is achieved to ensure the stable operation of the engine cooling system.
Patent Information
- Application Number
- CN202421695561.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing automobile water tank level sensor cannot achieve effective alarms of the lowest and highest liquid levels, resulting in timely filling when there is insufficient coolant, which may lead to a decrease in engine cooling capacity and ablation of the cylinder wall.
A water tank liquid level sensing alarm device is designed, using a combination of float and reed tube. A magnet is fixed on the float. The magnet is close to or away from the reed tube to achieve signal disconnection and alarm, and combined with support columns and protective sleeves to reduce the impact of shaking to ensure accurate alarm.
Accurate alarms of the lowest and highest liquid levels of the water tank are achieved, false alarms are reduced, timely replenished coolant filling is improved, and the risks of engine cooling capacity and cylinder wall ablation are avoided.
Smart Images
Figure CN223203135U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile accessories, and particularly relates to a water tank liquid level sensing alarm device. Background Art
[0002] A car's cooling system is crucial to its engine. Too little coolant can often lead to a severe drop in engine cooling capacity and even cylinder wall erosion, resulting in significant economic losses. This loss is primarily due to neglecting to regularly inspect the expansion tank, which can deplete the coolant. Therefore, it is crucial to develop an expansion tank that can monitor the tank level in real time and, when the level drops to a critical level, issue a signal prompting refilling, eliminating passive hazards. Currently, most automotive radiators use liquid level sensors for liquid level detection and alarms, but this method cannot provide minimum and maximum liquid level alarms. Utility Model Content
[0003] Purpose of the utility model: The purpose of this utility model is to provide a water tank liquid level sensing alarm device to solve the technical problem of minimum and maximum liquid level alarms in automobile water tanks.
[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A water tank liquid level sensing alarm device, comprising a water tank body, characterized in that: the water tank body is further provided with a buckle for mounting a reed switch, and the pin is inserted into the buckle and is located above the reed switch;
[0005] The water tank body has a built-in float, and a magnet is fixed on the upper part of the float. The magnet moves closer to or away from the reed switch according to the liquid level in the water tank body.
[0006] Furthermore, a support column is installed in the water tank body, and after a through hole is opened on the float, the float is sleeved on the support column.
[0007] Furthermore: the support column is made of plastic material.
[0008] Furthermore: the water tank body has two built-in protective sleeves, an opening is provided between the two protective sleeves, and the float is placed between the protective sleeves.
[0009] Compared with the existing technology, the utility model has the following advantages: the float moves away from or close to the reed switch according to the liquid level in the water tank body. When the float drives the magnet away from the reed switch, the signal is disconnected. When the float drives the magnet close to the reed switch, the reed switch senses the signal and alarms. On the other hand, by adding a support column, the float floats on the support column with the liquid level to avoid being affected by shaking. On the other hand, the float is placed between the protective covers to reduce the impact of liquid level fluctuations during shaking, and has good applicability and popularization. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a flow chart of the first embodiment of the utility model;
[0011] Figure 2 This is a flow chart of the second embodiment of the utility model;
[0012] Figure 3 This is a flow chart of the third embodiment of the utility model DETAILED DESCRIPTION
[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0014] In the description of the utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0015] In the first embodiment of the present invention, Figure 1 As shown, a water tank liquid level sensing alarm device includes a water tank body 1, characterized in that: the water tank body 1 also has a buckle 3 for installing a reed switch 2, and a pin 4 is inserted into the buckle 3 and is located above the reed switch 2;
[0016] The water tank body 1 has a built-in float 5 and a magnet 6 fixed on the upper portion of the float 5 . The magnet 6 moves closer to or farther away from the reed switch 2 as the liquid level in the water tank body 1 moves.
[0017] By adopting the above technical solution, the implementation method of this solution is as follows: when the float 5 in the water tank body 1 approaches the reed switch 2 as the liquid level rises, the reed switch 2 is affected by the magnetic force and senses a signal alarm; when the liquid level in the water tank body 1 drops, the float 5 drops away from the reed switch 2, and the reed switch 2 disconnects the signal.
[0018] In the second embodiment of the present invention, Figure 2 As shown, the water tank body 1 is equipped with a support column 7, and a through hole 8 is opened on the float 5, and the float 5 is sleeved on the support column 7;
[0019] The support column 7 is made of plastic material;
[0020] Due to the use of float 5, the liquid in the water tank sways with the vehicle during driving, resulting in a large height difference of the float, which may lead to false alarms.
[0021] By adopting the above technical solution, the implementation method of this solution is as follows: the float 5 in the water tank body 1 approaches the reed switch 2 along the support column 7 as the liquid level rises. When approaching, the reed switch 2 is affected by the magnetic force and senses a signal alarm. When the liquid level in the water tank body 1 drops, the float 5 drops along the support column away from the reed switch 2, and the reed switch 2 disconnects the signal.
[0022] In the third embodiment of the present invention, Figure 3 As shown, the water tank body 1 has two protective sleeves 8 built in, with an opening 9 between the two protective sleeves 8, and the float 5 is placed between the protective sleeves 8;
[0023] By adopting the above technical solution, the implementation method of this solution is as follows: the liquid entering the water tank body 1 enters the protective cover 8 from the opening 9, causing the float to rise or fall with the liquid level. When the float 5 in the protective cover 8 approaches the reed switch 2 as the liquid level rises, the reed switch 2 is affected by the magnetic force and senses a signal alarm. When the liquid level in the water tank body 1 drops, the float 5 drops away from the reed switch 2, and the reed switch 2 disconnects the signal. By adding the protective cover 8, the shaking effect of the vehicle during driving is reduced.
[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as within the scope of protection of the present invention.
Claims
1. A water tank liquid level sensing alarm device, comprising a water tank body (1), characterized in that: The water tank body (1) also has a buckle (3) for mounting the reed switch (2), and the pin (4) is inserted into the buckle (3) and is located above the reed switch (2); The water tank body (1) has a built-in float (5), and a magnet (6) is fixed on the upper portion of the float (5). The magnet (6) moves closer to or farther away from the reed switch (2) as the liquid level in the water tank body (1) changes. The water tank body (1) is internally provided with a support column (7), and the support column (7) is made of a plastic material. After a through hole (8) is opened on the float (5), the float (5) is sleeved on the support column (7); The water tank body (1) has a built-in protective sleeve (9), there are two protective sleeves (9), an opening (10) is provided between the two protective sleeves (9), and the float (5) is placed between the protective sleeves (9).