An automatic water level control module and a breathing machine

Abstract

This utility model relates to the field of ventilator technology, specifically to an automatic water level control module and a ventilator. The automatic water level control module includes a water tank and a control component. The water tank has an inlet for filling it with water. The control component, located inside the water tank, includes a circuit board, a detection component electrically connected to the circuit board, and a control element connected to the inlet. The detection component measures the water level at the bottom of the water tank. When the detected water level is higher than a first preset level, the circuit board controls the control element to close the inlet; when the detected water level is lower than a second preset level, the circuit board controls the control element to open the inlet. This greatly simplifies the usage process, prevents the ventilator from being forced to shut down due to lack of water, ensures the user continuously receives warm water vapor to humidify the airway, relieves wheezing and shortness of breath, and improves the continuity and reliability of treatment.

Description

Technical Field

[0001] This utility model relates to the field of ventilator technology, and in particular to an automatic water level control module and a ventilator. Background Technology

[0002] A ventilator can heat water to produce warm water vapor, which can moisturize the airways and relieve discomfort symptoms such as wheezing, shortness of breath, chest tightness and cough in asthma patients, thus improving their breathing comfort.

[0003] Currently, most mainstream ventilators on the market use a manual water tank design, requiring users to manually fill the tank inside the heater. This process often involves stopping the machine, opening it to fill the tank, and then reassembling and restarting it, making it quite complex. Furthermore, manual water filling can lead to difficulties in real-time and accurate water level monitoring due to busy schedules and distractions, easily resulting in undetected water shortages that force the ventilator to stop working, hindering continuous use by the user. Utility Model Content

[0004] This utility model provides an automatic water level control module and a ventilator to solve the problems of complex operation procedures and failure to detect water tank shortage in time, which force the ventilator to stop working and is not conducive to continuous use by users.

[0005] This utility model discloses an automatic water level control module, including: a water tank and a control component. The water tank has a water inlet for filling the water tank with water. The control component is disposed inside the water tank and includes a circuit board, a detection component and a control element electrically connected to the circuit board. The control element is connected to the water inlet. The detection component is used to measure the water level at the bottom of the water tank. When the detected water level is greater than a first preset water level, the circuit board controls the control element to close the water inlet. When the detected water level is less than a second preset water level, the circuit board controls the control element to open the water inlet.

[0006] Optionally, the control component further includes a valve plate and a valve. The valve plate is disposed in the water inlet and has a first through hole and a second through hole. The control component is connected to the water inlet through the first through hole. A water bottle is disposed at the water inlet. The valve is connected to the second through hole to balance the pressure difference in the water bottle.

[0007] Optionally, the detection component includes a first probe and a second probe, both of which are inserted into and electrically connected to the circuit board and are positioned facing the bottom of the water tank; used to measure the water level at the bottom of the water tank. When the first probe detects that the water level is greater than a first preset water level, the circuit board controls the control component to close the first through hole; when the second probe detects that the water level is less than a second preset water level, the circuit board controls the control component to open the first through hole.

[0008] Optionally, the valve includes a valve body and a waterproof and breathable membrane disposed on one side of the valve body. The valve body is disposed on the water tank and located on the side of the valve plate away from the water inlet. The waterproof and breathable membrane is attached to the second through hole.

[0009] Optionally, the water tank includes an upper cover, a shell, and a bottom plate arranged sequentially from top to bottom. The water inlet is located on the upper cover, and the valve plate is located at the bottom of the water inlet. A first receiving groove is provided on the side of the upper cover opposite to the water inlet, and the valve is located in the first receiving groove. A second receiving groove is also formed inside the shell, and the control component is located in the second receiving groove. A water-receiving trough is formed on the bottom plate, and the circuit board is located on the inner wall of the shell. Both the first probe and the second probe extend into the water-receiving trough.

[0010] Optionally, the control element is a solenoid valve.

[0011] Optionally, both the first probe and the second probe are made of corrosion-resistant stainless steel or gold-plated copper.

[0012] Optionally, the water inlet is a threaded hole.

[0013] This utility model also discloses a ventilator, including the automatic water level control module described above.

[0014] The beneficial effects of the automatic water level control module and ventilator provided in this utility model embodiment are as follows: the water tank, as the core carrier for water storage, is provided with a water inlet for water injection. The control component is integrated inside the water tank and consists of a circuit board, a detection component, and a control component. The detection component and the control component are both electrically connected to the circuit board. The control component is directly connected to the water inlet and can control the opening and closing of the water inlet through its own switch state, thereby regulating the water injection process. Specifically, the detection component measures the water level at the bottom of the water tank in real time. When the detection component detects that the water level is higher than the first preset water level (high water level threshold), the circuit board sends a signal to control the control component to close and stop water injection. When the water level is lower than the second preset water level (low water level threshold), the circuit board controls the control component to open and start water injection, thereby realizing automatic dynamic adjustment of the water level. The automatic water level control module in this embodiment does not require turning on the ventilator when adding water. Simply place the water bottle at the inlet, which greatly simplifies the usage steps and enables precise, real-time control of the water level. This completely avoids the problem of "undetected water shortage" caused by human negligence (such as being busy or distracted), prevents the ventilator from being forced to shut down due to lack of water, ensures that the user continuously receives warm water vapor to moisten the airway, relieves discomfort such as wheezing and shortness of breath, and improves the continuity and reliability of treatment. Attached Figure Description

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is one of the structural schematic diagrams of the water tank and water bottle provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the base plate and control components provided in an embodiment of the present utility model; Figure 3 This is one of the schematic diagrams of the housing and control components provided in an embodiment of the present utility model; Figure 4 This is a second schematic diagram of the housing and control components provided in this embodiment of the utility model; Figure 5 This is one of the schematic diagrams of the top cover provided in this embodiment of the utility model; Figure 6 This is a second schematic diagram of the top cover provided in this embodiment of the utility model; Figure 7 This is the second structural schematic diagram of the water tank and water bottle provided in this embodiment of the utility model; Figure 8 This is the third structural schematic diagram of the water tank and water bottle provided in this embodiment of the utility model.

[0016] The labels for the attached figures are as follows: 10. Water tank; 101. Water inlet; 110. Top cover; 120. Shell; 130. Base plate; 102. First receiving tank; 103. Second receiving tank; 104. Water tank; 105. First opening; 106. Second opening; 140. Heater; 210. Circuit board; 220. Detection component; 221. First probe; 222. Second probe; 230. Control component; 240. Valve plate; 2401. First through hole; 2402. Second through hole; 30. Water bottle; 310. Water pipe; 250. Valve; 251. Valve body; 252. Waterproof and breathable membrane. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0018] This utility model embodiment provides an automatic water level control module, such as Figures 1 to 6 As shown, the system includes a water tank 10 and a control assembly. The water tank 10 has an inlet 101 for filling the water tank 10 with water. The control assembly is located inside the water tank 10 and includes a circuit board 210, a detection assembly 220, and a control component 230 electrically connected to the circuit board 210. The control component 230 is connected to the inlet 101. The detection assembly 220 is used to measure the water level at the bottom of the water tank 10. When the detected water level is greater than a first preset water level, the circuit board 210 controls the control component 230 to close the inlet 101. When the detected water level is less than a second preset water level, the circuit board 210 controls the control component 230 to open the inlet 101.

[0019] The water tank 10, as the core carrier for water storage, is equipped with a water inlet 101 for water injection. The control component is integrated inside the water tank 10 and consists of a circuit board 210, a detection component 220, and a control component 230. The detection component 220 and the control component 230 are both electrically connected to the circuit board 210. The control component 230 is directly connected to the water inlet 101 and can control the opening and closing of the water inlet 101 through its own switch state, thereby regulating the water injection process. Specifically, the detection component 220 measures the water level at the bottom of the water tank 10 in real time. When the detection component 220 detects that the water level is higher than the first preset water level (high water level threshold), the circuit board 210 sends a signal to control the control component 230 to close and stop water injection. When the water level is lower than the second preset water level (low water level threshold), the circuit board 210 controls the control component 230 to open and start water injection, thereby realizing automatic dynamic adjustment of the water level. The automatic water level control module in this embodiment does not require turning on the ventilator when adding water. Simply place the water bottle 30 at the water inlet 101, which greatly simplifies the usage steps and enables precise, real-time control of the water level. This completely avoids the problem of "water tank 10 running out of water and not being detected" due to human negligence (such as being busy or distracted). It also prevents the ventilator from being forced to shut down due to lack of water, ensuring that the user continuously receives warm water vapor to moisten the airway, relieve discomfort such as wheezing and shortness of breath, and improve the continuity and reliability of treatment.

[0020] Reference Figures 1 to 6 An example is given where the water bottle 30 is located on top of the water tank 10. In this case, the water inlet 101 is located on top of the water tank 10, and the control component 230 is a solenoid valve. (Refer to...) Figure 7 and Figure 8 An example is given where the water bottle 30 is located on one side of the water tank 10. In this case, the water inlet 101 is located on one side of the water tank 10, and the control component 230 is a water pump. The water pump is connected to the water bottle 30 through the water pipe 310.

[0021] As a preferred embodiment, refer to Figure 2 and Figure 3 The control component also includes a valve plate 240 and a valve 250. The valve plate 240 is disposed in the water inlet hole, and a first through hole 2401 and a second through hole 2402 are formed on the valve plate 240. The control component 230 is connected to the water inlet 101 through the first through hole 2401. A water bottle 30 is provided at the water inlet 101. The valve 250 is connected to the second through hole 2402 to balance the pressure difference in the water bottle 30.

[0022] The control component includes a valve plate 240 and a valve 250. The valve plate 240 is fixedly installed inside the water inlet 101 and has two independent channels: a first through hole 2401 and a second through hole 2402. The control component 230 is connected to the water inlet 101 through the first through hole 2401, forming the main water injection channel and controlling the flow of water. A water bottle 30 is installed at the water inlet 101 as a water source. The valve 250 is connected to the second through hole 2402, forming a pressure difference balancing channel, specifically used to regulate the pressure difference between the inside of the water bottle 30 and the outside. When the control component 230 is opened to inject water through the first through hole 2401, the water level in the water bottle 30 drops, creating negative pressure. At this time, the valve 250 replenishes air into the water bottle 30 through the second through hole 2402 to balance the internal and external pressure difference, ensuring a continuous and stable water injection process and preventing water level control failure due to water flow interruption. The water bottle 30 is located at the water inlet 101, allowing the user to directly observe the changes in the water volume of the water bottle 30 and replace it in real time, ensuring the continuity of the automatic water level control module in this embodiment.

[0023] As a preferred embodiment, refer to Figure 2 and Figure 4 The detection component 220 includes a first probe 221 and a second probe 222. Both the first probe 221 and the second probe 222 are inserted into and electrically connected to the circuit board 210, and are positioned facing the bottom of the water tank 10. They are used to measure the water level at the bottom of the water tank 10. When the first probe 221 detects that the water level is higher than a first preset water level, the circuit board 210 controls the control component 230 to close the first through hole 2401. When the second probe 222 detects that the water level is lower than a second preset water level, the circuit board 210 controls the control component 230 to open the first through hole 2401.

[0024] In this embodiment, the detection component 220 specifically consists of a first probe 221 and a second probe 222. Both probes are inserted into the circuit board 210 and positioned facing the bottom of the water tank 10. The first probe 221 measures the water level at the bottom of the water tank 10. When the first probe 221 detects a water level greater than a first preset water level, it indicates that sufficient water has been added to the bottom of the water tank 10. Therefore, the circuit board 210 controls the control unit 230 to close the first through hole 2401 to prevent water overflow from continued injection. When the second probe 222 detects a water level less than a second preset water level, it indicates that there is a water shortage at the bottom of the water tank 10. At this time, the circuit board 210 controls the control unit 230 to open the first through hole 2401 and inject water into the bottom of the water tank 10. This embodiment achieves on-demand water addition, improves water level control accuracy, and enhances equipment reliability. It provides users with a safer and more reliable portable treatment device.

[0025] In this embodiment, the detection principle of the first probe 221 and the second probe 222 for detecting the water level at the bottom of the water tank 10 is existing technology and will not be described in detail here.

[0026] As a preferred embodiment, refer to Figure 2 and Figure 3 The valve 250 includes a valve body 251 and a waterproof and breathable membrane 252 disposed on one side of the valve body 251. The valve body 251 is disposed on the water tank 10 and is located on the side of the valve plate 240 away from the water inlet 101. The waterproof and breathable membrane 252 is attached to the second through hole 2402.

[0027] The valve body 251, serving as the basic frame of the valve 250, is fixedly installed on the water tank 10, providing a stable installation environment for the waterproof and breathable membrane 252. The waterproof and breathable membrane 252 is a core functional component, made of waterproof and breathable materials (such as polytetrafluoroethylene microporous membranes, eptfe membranes, etc.). Its pore size only allows gas molecules to pass through, while water molecules cannot. Specifically, during operation, when water from the water bottle 30 flows into the water tank 10 through the inlet 101 and the first through-hole 2401, a negative pressure is created inside the water bottle 30 due to the reduced water volume. At this time, the atmospheric pressure is greater than the internal pressure of the water bottle 30, and external air enters through the valve body 251 of the valve 250, passes through the waterproof and breathable membrane 252, and then enters the inlet 101 through the second through-hole 2402, ultimately flowing into the water bottle 30. This achieves a balance of air pressure inside and outside the water bottle 30, ensuring a continuous and smooth water flow and preventing water outages caused by pressure imbalance, thus improving the reliability of the water supply.

[0028] As a preferred embodiment, refer to Figures 1 to 6 The water tank 10 includes an upper cover 110, a housing 120, and a bottom plate 130 arranged sequentially from top to bottom. The water inlet 101 is located on the upper cover 110, and the valve plate 240 is located at the bottom of the water inlet 101. A first receiving groove 102 is provided on the side of the upper cover 110 away from the water inlet 101, and the valve 250 is located in the first receiving groove 102. A second receiving groove 103 is also formed in the housing 120, and the control component 230 is located in the second receiving groove 103. A water tank 104 is formed in the bottom plate 130, and the circuit board 210 is located on the inner wall of the housing 120. The first probe 221 and the second probe 222 both extend into the water tank 104.

[0029] In this embodiment, the water tank 10 adopts a three-layer structure from top to bottom. Each layer is independently processed and then connected and fixed by bolts, buckles and other means, which not only ensures structural stability, but also facilitates disassembly and maintenance.

[0030] The top cover 110 is the top component of the water tank 10. The water inlet 101 is opened on the surface of the top cover 110, which makes it easy for the user to quickly connect the water bottle 30. The valve plate 240 is installed at the bottom of the water inlet 101 (i.e., the inside of the top cover 110) and directly connects with the water inlet 101 to ensure smooth passage between the first through hole 2401, the second through hole 2402 and the water inlet 101. The top cover 110 has a first receiving groove 102 on the side opposite to the water inlet 101. The valve 250 is embedded in the first receiving groove 102, which provides a fixed support for the valve 250 and at the same time makes the waterproof and breathable membrane 252 precisely aligned with the second through hole 2402 of the valve plate 240 to ensure the sealing of the air pressure balance passage.

[0031] Of course, refer to Figure 6 The upper cover 110 also has a first opening 105 communicating with the first through hole 2401 and a second opening 106 communicating with the second through hole 2402.

[0032] The second receiving groove 103 provided inside the housing 120 provides a stable installation environment for the control component 230. The circuit board 210 is fixed on the inner wall of the housing 120, and its position is close to the water storage area of ​​the bottom plate 130, so that the first probe 221 and the second probe 222 can be smoothly inserted into the water tank 104 of the bottom plate 130 to ensure the accuracy of water level detection.

[0033] The base plate 130 is the bottom component of the base, and its surface is recessed downward to form a water tank 104. The water tank 104 is the water storage space of the base, used to hold water flowing in from the water inlet 101.

[0034] As a preferred embodiment, Figures 1 to 6 In the middle, the control component 230 adopts a solenoid valve.

[0035] The solenoid valve is controlled by an electrical signal and can form a complete automatic control system with the circuit board 210, the first probe 221 and the second probe 222. It can adjust the water level without manual intervention. At the same time, the solenoid valve is usually small in size and compact in structure. It can be easily installed in the second receiving slot 103 of the housing 120 without taking up too much internal space, realizing the miniaturization of the equipment and improving the user's convenience.

[0036] In this example, a heater 140 is provided at the bottom of the water tank 104, and the heater 140 uses a metal heating element.

[0037] Metal heating elements typically use stainless steel, aluminum, or other metals as the base material. They generate heat through an internal resistance wire that is energized, directly contacting the water to achieve heat conduction. Metal heating elements possess good corrosion and aging resistance, allowing them to withstand the long-term humid environment within the water tank and ensuring safe use.

[0038] As a preferred embodiment, both the first probe 221 and the second probe 222 are made of corrosion-resistant stainless steel or gold-plated copper.

[0039] The corrosion resistance of the two materials significantly reduces the aging rate of the first probe 221 and the second probe 222, avoiding the problem of detection signal distortion or failure caused by the corrosion of the first probe 221 and the second probe 222, and extending the service life of the detection component 220. At the same time, the stable conductivity makes the first probe 221 and the second probe 222 more accurate in judging the water level, further ensuring the reliable execution of the water level control logic and improving the reliability of the automatic water level control module.

[0040] As a preferred embodiment, Figures 1 to 6 In the middle, the water inlet 101 is a threaded hole.

[0041] The inlet 101 is a threaded hole that can be used with common threaded water bottles 30 (such as mineral water bottles 30). By tightening the thread, a sealed connection is achieved between the water bottle 30 and the inlet 101, preventing leakage. It also improves the ease of operation for users when changing the water bottle 30.

[0042] This application also discloses a ventilator, including the automatic water level control module of the foregoing embodiments. This ventilator has the same structure and beneficial effects as the automatic water level control module in the foregoing embodiments. The structure and beneficial effects of the automatic water level control module have been described in detail in the foregoing embodiments and will not be repeated here. It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. An automatic water level control module, characterized in that, include: A water tank having an inlet for filling the tank with water; A control component, located inside the water tank, includes a circuit board, a detection component electrically connected to the circuit board, and a control element, wherein the control element is connected to the water inlet. The detection component is used to measure the water level at the bottom of the water tank. When the detected water level is greater than a first preset water level, the circuit board controls the control component to close the water inlet. When the detected water level is less than a second preset water level, the circuit board controls the control component to open the water inlet.

2. The automatic water level control module according to claim 1, characterized in that, The control component also includes a valve plate and a valve. The valve plate is disposed in the water inlet and has a first through hole and a second through hole. The control component is connected to the water inlet through the first through hole. A water bottle is disposed at the water inlet. The valve is connected to the second through hole to balance the pressure difference in the water bottle.

3. The automatic water level control module according to claim 2, characterized in that, The detection component includes a first probe and a second probe, both of which are inserted into and electrically connected to the circuit board and are positioned facing the bottom of the water tank. It is used to measure the water level at the bottom of the water tank. When the first probe detects a water level greater than a first preset water level, the circuit board controls the control component to close the first through-hole. When the second probe detects a water level less than a second preset water level, the circuit board controls the control component to open the first through-hole.

4. The automatic water level control module according to claim 2, characterized in that, The valve includes a valve body and a waterproof and breathable membrane disposed on one side of the valve body. The valve body is disposed on the water tank and located on the side of the valve plate away from the water inlet. The waterproof and breathable membrane is attached to the second through hole.

5. The automatic water level control module according to claim 3, characterized in that, The water tank includes an upper cover, a shell, and a bottom plate arranged sequentially from top to bottom. The water inlet is located on the upper cover, and the valve plate is located at the bottom of the water inlet. A first receiving groove is provided on the side of the upper cover away from the water inlet, and the valve is located in the first receiving groove. A second receiving groove is also formed inside the housing, and the control component is disposed inside the second receiving groove; The base plate forms a water tank, the circuit board is disposed on the inner wall of the housing, and both the first probe and the second probe extend into the water tank.

6. The automatic water level control module according to claim 3, characterized in that, The control component is a solenoid valve.

7. The automatic water level control module according to claim 3, characterized in that, Both the first probe and the second probe are made of corrosion-resistant stainless steel or gold-plated copper.

8. The automatic water level control module according to claim 3, characterized in that, The water inlet is a threaded hole.

9. A ventilator, characterized in that, Includes the automatic water level control module as described in any one of claims 1 to 8.

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