Water tank heating device and breathing machine

Abstract

The utility model relates to the technical field of breathing machine humidification, in particular to a water tank heating device and a breathing machine. The water tank heating device comprises a water tank body (1), a heating body (2) and a vortex generator (3), the heating body (2) is arranged in the water tank body (1), the vortex generator (3) is arranged outside the water tank body (1), and the water tank body (1) is arranged between the vortex generator (3) and the heating body (2). According to the utility model, the conductor embedded in the water tank is heated by utilizing eddy current, so that the water tank is directly heated, and frequent plugging of electrified components is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of humidification of respirators, in particular to a water tank heating device and a respirator. Background Art

[0002] Ventilators play an important role in the treatment of diseases such as respiratory failure and sleep apnea hypopnea syndrome. However, in dry areas, using ventilators directly will dry out the user's nasal cavity and cause other discomfort. Therefore, ventilators usually have a humidification function. Humidification is mainly achieved by heating the liquid in the humidifier to evaporate it so that the water vapor merges with the gas in the ventilator's airway to meet the humidification needs. The humidifier generally consists of a heating part and a water tank. The current heating methods for ventilator water tanks on the market are mainly divided into direct heating and indirect heating, both of which have their own shortcomings. Although the direct heating method has high humidification efficiency, the main unit and the water tank are connected separately, and the contact points are easily damaged; although the indirect heating method avoids the risk of connecting the heating body to the machine, the heat energy loss is high and the humidification efficiency is difficult to guarantee. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and propose a water tank heating device and a ventilator, which utilize eddy currents to heat the conductor embedded in the water tank, thereby directly heating the water tank and avoiding frequent plugging and unplugging of live components.

[0004] The utility model proposes a humidifier water tank heating device, which comprises a water tank body 1, a heating element 2, a vortex generator 3 and a power supply component, wherein:

[0005] A heating element 2 is disposed inside the water tank body 1, and a vortex generator 3 is disposed outside the water tank body 1, wherein the water tank body 1 is spaced between the vortex generator 3 and the heating element 2;

[0006] The power supply component is connected to the eddy current generator 3 .

[0007] Preferably, the eddy current generator 3 is an induction coil, which is used to generate an electromagnetic field and form eddy currents therein; and the heating element is a conductor, which is used to heat by the heat generated by the eddy currents.

[0008] Preferably, a heat insulating layer 4 is provided between the heating element 2 and the inner wall of the water tank body 1 .

[0009] Preferably, the heating element 2 is embedded in the water tank body 1 .

[0010] The utility model provides a breathing machine, which comprises the humidifier water tank heating device.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] The utility model makes the heating element inside the water tank generate heat through the eddy current principle, thereby realizing direct heating of the water tank. The design of the eddy current heating device reduces heat energy loss and improves humidification efficiency, while avoiding frequent plugging and unplugging of live components, thereby improving the stability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional diagram of the humidifier water tank heating device of the utility model;

[0014] Figure 2 This is a cross-sectional view of the humidifier water tank heating device of the utility model;

[0015] Figure 3 For this utility model Figure 2 A magnified view of;

[0016] Figure 4 This is the control circuit diagram of the humidifier water tank heating device of the utility model;

[0017] Figure 5 For this utility model Figure 4 AA section view;

[0018] Figure 6 For this utility model Figure 5 B enlarged view;

[0019] Figure 7 This is a diagram of the heat insulation layer of the humidifier water tank heating device of the utility model;

[0020] Figure 8 For this utility model Figure 7 A magnified view of;

[0021] Fig. 9 It is the current movement direction diagram of the utility model;

[0022] Fig.10 For this utility model Fig. 9 AA section view;

[0023] Fig.11 For this utility model Fig.10 A partial map of

[0024] Fig.12 The current direction diagram of the coil is replaced for the utility model;

[0025] Fig.13 For this utility model Fig.12 AA section view;

[0026] Fig.14 For this utility model Fig.13 A partial map of

[0027] Reference numerals:

[0028] 1. Water tank body, 2. Heating element, 3. Vortex generator, 4. Thermal insulation layer. DETAILED DESCRIPTION

[0029] The technical solution of the utility model is described in detail below in conjunction with the embodiments and drawings.

[0030] The utility model provides a humidifier water tank heating device, which comprises a water tank body 1, a heating element 2 and a vortex generator 3. The water tank body 1 is used to contain liquid to be heated, and the inner bottom shell thereof is embedded with the heating element 2. Figure 1-3 As shown, the heating element 2 is a conductor, which is used for heating by heat generated by eddy currents. A vortex generator 3 is arranged outside the water tank body 1. The water tank body 1 is spaced between the vortex generator 3 and the heating element 2. The vortex generator 3 is an induction coil, which is used to generate an electromagnetic field. Through the control circuit, an alternating current generates an alternating magnetic field. Under the action of the magnetic field, the internal electrons of the heating conductor move in a directional manner to form eddy currents. The induction coil part causes the heating conductor part to be affected by the eddy currents and generate heat. For directly heating the liquid, the vortex generator 3 can be fixed to the water tank body 1 or can be separately arranged. The humidifier water tank heating device can also include a power supply component, such as Figure 4-6 As shown; the power supply component is used to supply power to the humidifier; the power supply component is connected to the vortex generator, and the power supply component also includes a control circuit that can control the magnitude and frequency of the coil current. Preferably, a heat insulation layer 4 is provided between the heating element 2 and the inner wall of the water tank body 1, such as Figure 7-8 shown.

[0031] The utility model provides a humidifier water tank heating device, and its working principle is as follows:

[0032] When the control circuit supplies power to the coil, the coil generates a magnetic field, such as Figure 9-11 As shown in the figure, the black part is the direction of current movement. At this time, according to the right-hand rule, the coil generates a magnetic field with the N pole pointing upward; the blue arrow in the figure is the N pole direction; when the control circuit changes the coil current direction, the coil generates a magnetic field, such as Figure 12-14 As shown, the black part in the figure is the direction of current movement. At this time, according to the right-hand rule, the N-pole direction of the magnetic field generated by the coil is downward; the blue arrow in the figure is the N-pole direction; when the temperature of the heating element 2 is too high, the heating element 2 and the outer shell of the water tank body 1 can be isolated by adding a heat insulation layer material such as silica gel between the heating element 2 and the water tank body 1, thereby avoiding damage to the water tank outer shell. The structure is shown in the figure.

[0033] The heating conductor inside the water tank of the utility model generates heat through the eddy current effect, and the liquid is directly heated by the direct effect of the eddy current on the heating conductor. Compared with the indirect heating method, the humidification efficiency of the humidifier is greatly improved; it is mainly the eddy current effect, and the temperature can be adjusted by changing the current size, frequency; coil wire diameter, number of turns, resistivity, area of ​​the heating conductor, etc. The parameter control is relatively easy to change the heating efficiency of the water tank.

[0034] The utility model has a simple structure and reduces the risk of accidental water leakage of the water tank due to assembly problems by embedding the heating conductor into the water tank; and reduces circuit problems caused by frequent plugging and unplugging of electronic components on the water tank.

[0035] Any content not described in detail in the present invention can be based on the conventional technical knowledge in the field.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the embodiments, a person skilled in the art should understand that any modification or equivalent replacement of the technical solution of the utility model does not deviate from the spirit and scope of the technical solution of the utility model, and should be included in the scope of the claims of the utility model.

Claims

1. A water tank heating device, characterized in that: The water tank heating device comprises a water tank body (1), a heating element (2) and a vortex generator (3), wherein: A heating element (2) is arranged inside the water tank body (1), and a vortex generator (3) is arranged outside the water tank body (1), with the water tank body (1) being spaced between the vortex generator (3) and the heating element (2).

2. The water tank heating device according to claim 1, characterized in that: It also comprises a power supply component, which is connected to the vortex generator (3).

3. The water tank heating device according to claim 1, characterized in that: The eddy current generator (3) is an induction coil, which is used to generate an electromagnetic field and form eddy currents inside the induction coil; the heating element is a conductor, which is used to heat the coil by using the heat generated by the eddy currents.

4. The water tank heating device according to claim 1, characterized in that: A heat insulation layer (4) is provided between the heating element (2) and the inner wall of the water tank body (1).

5. The water tank heating device according to claim 1, characterized in that: The heating element (2) is embedded in the water tank body (1).

6. A ventilator, characterized in that: The invention comprises the water tank heating device as described in any one of claims 1-5.

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