Electricity taking structure for ventilation treatment equipment and ventilation treatment equipment
By setting a heating circuit inside the humidifier housing and using compatible connecting parts to achieve electrical connection between the humidifier and the main unit, the heat transfer loss and structural problems of the heating method are solved, improving safety and user experience, and achieving stable circuit power supply and signal transmission.
Patent Information
- Application Number
- CN202423261536.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing humidifiers suffer from heat transfer loss, poor sealing, insufficient structural strength, and susceptibility to damage during disassembly and assembly. Furthermore, they lack effective power supply and signal transmission solutions.
The humidifier employs a heating circuit housed within its casing, and utilizes compatible first and second connectors to achieve plug-in or surface-contact connection between the humidifier and the main unit. This ensures that the electrodes are conductive during connection, enabling the heating circuit to be energized and signals to be transmitted.
It improves the safety performance and user experience of the humidifier, reduces structural complexity, eliminates the need for an additional external power supply, and ensures stable power supply and signal transmission for the heating circuit.
Smart Images

Figure CN223625250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation therapy, specifically to a power supply structure for a ventilation therapy device and a ventilation therapy device including the power supply structure. Background Technology
[0002] Ventilation therapy equipment, such as ventilators, has become a common device used for respiratory diseases. When using a ventilator, the air needs to be heated and humidified to provide patients with a better breathing experience. This process involves heating the liquid in the humidifier's reservoir, and the resulting water vapor humidifies the breathing air.
[0003] The common heating and humidification method of humidifiers is to set a heat-conducting plate at the bottom of the humidifier and a heating plate on the main unit. After the humidifier is connected to the main unit, the heat-conducting plate at the bottom of the humidifier contacts the heating plate, and the heat generated by the heating plate is conducted to the liquid inside the storage chamber through the heat-conducting plate.
[0004] However, during the heat transfer process between the heat conduction plate and the heating plate, complete contact between the contact surfaces cannot be achieved, resulting in heat loss during heat transfer. Furthermore, problems such as poor sealing, insufficient structural strength, and insufficient flatness at the connection between the heating plate and the humidifier can easily occur, affecting heat transfer. In addition, friction occurs during the disassembly and assembly of the humidifier and the main unit, causing scratches and damage to both the heat conduction plate and the heating plate.
[0005] To address the aforementioned issues, the applicant proposed a novel heating method for humidifiers, which involves directly incorporating a heating circuit within the humidifier's casing. However, existing technologies lack solutions for energizing the heating circuit and transmitting signals using this method. Utility Model Content
[0006] The purpose of this invention is to provide a power supply structure for a ventilation therapy device and a ventilation therapy device including the power supply structure, so as to solve the above-mentioned problems.
[0007] To achieve the above objectives, this utility model provides a power supply structure for a ventilation therapy device. The power supply structure is used to connect and supply power to the humidifier of the ventilation therapy device and the main unit. The power supply structure includes a first connecting part and a second connecting part that are adapted to each other. The first connecting part is disposed on the humidifier and has a first electrode that is electrically connected to the humidifier. The second connecting part is disposed on the main unit and has a second electrode that is electrically connected to the circuit components of the main unit. The first electrode and the second electrode are configured to make contact with each other and conduct electricity when the first connecting part and the second connecting part are connected.
[0008] In some embodiments, the connection between the first connecting part and the second connecting part includes a plug-in connection or a surface contact connection.
[0009] In some embodiments, the first connecting portion includes a recess disposed on the humidifier, and the first electrode is disposed within the recess; the second connecting portion includes a protrusion disposed on the main unit that can be inserted into the recess, and the second electrode is disposed on the protrusion or forms the protrusion.
[0010] In some embodiments, the first connecting portion includes a protrusion disposed on the humidifier, and the first electrode is disposed on any surface of the protrusion; the second connecting portion includes a recess disposed on the main unit for insertion of the protrusion, and the second electrode is disposed within the recess.
[0011] In some embodiments, the protrusion is in the shape of a square plate.
[0012] In some embodiments, one of the protrusion and the recess is provided with a guide portion for guiding its connection with the other of the protrusion and the recess.
[0013] In some embodiments, the guide portion includes a horizontal insertion guide portion for guiding the protrusion into place in the horizontal direction and / or a vertical insertion guide portion for guiding the protrusion into place in the vertical direction.
[0014] In some embodiments, the horizontal positioning guide includes first guide ramps respectively disposed on both sides of the protrusion, the first guide ramps being configured to extend outward from the end of the protrusion toward the head end.
[0015] In some embodiments, the vertical positioning guide includes a second guide ramp disposed on the top and / or bottom of the protrusion, wherein the second guide ramp on the top is configured to extend upwardly from the end of the protrusion toward the beginning, and the second guide ramp on the bottom is configured to extend downwardly from the end of the protrusion toward the beginning.
[0016] In some embodiments, the vertical positioning guide includes a plurality of second guide ramps, which are spaced apart on the protrusion along the horizontal extension direction of the protrusion.
[0017] In some embodiments, a waterproof baffle is movably provided within the recess, the waterproof baffle being configured to stop at the opening of the recess and to open inward under the pressure of the protrusion.
[0018] In some embodiments, the waterproof baffle is rotatably disposed within the recess.
[0019] In some embodiments, the first electrode and the second electrode are configured as a set of contact electrodes or multiple sets of contact electrodes that are adapted to each other; when the first electrode is configured as the set of contact electrodes, the circuit of the humidifier is an overall series circuit and the set of contact electrodes is connected to the series circuit; when the first electrode is configured as multiple sets of contact electrodes, the circuit of the humidifier includes multiple sets of parallel circuits, and each set of contact electrodes is connected to a set of circuits.
[0020] Another aspect of this utility model provides a ventilation therapy device, including a humidifier and a main unit, and also includes the aforementioned power supply structure for the ventilation therapy device.
[0021] This utility model, through the power supply structure provided by the above-described technical solution, achieves power supply and signal transmission by connecting the humidifier to the main unit. This not only enables power supply and signal transmission to the heating circuit within the humidifier but also eliminates the need for an external power source, reducing structural complexity. Furthermore, since the humidifier can only be powered and heated when the first and second connecting parts are connected, it effectively improves the humidifier's safety performance and enhances the user experience.
[0022] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description
[0023] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0024] Figure 1 This is a perspective view of one embodiment of the humidifier in this utility model;
[0025] Figure 2 yes Figure 1 Another perspective 3D view of the humidifier, in which the upper casing is omitted;
[0026] Figure 3 yes Figure 2 The enlarged view of section A mainly shows the structure of the first connecting part;
[0027] Figure 4 yes Figure 3 A schematic diagram of another embodiment of the first connecting part;
[0028] Figure 5 yes Figure 3 A schematic diagram of another embodiment of the first connecting part;
[0029] Figure 6 yes Figure 4 The first connecting part is installed in the top view of the humidifier, wherein the humidifier omits the upper housing;
[0030] Figure 7 yes Figure 6 The enlarged view of section B mainly shows the structure of the first connecting part;
[0031] Figure 8 yes Figure 7 A top view of another embodiment of the first connecting part;
[0032] Figure 9 This is a partial cross-sectional view of one embodiment of the ventilation therapy device of this utility model, wherein the first connecting part is... Figure 5 The first connecting part shown;
[0033] Figure 10 yes Figure 9 The enlarged view of section C mainly shows the insertion and mating of the first connecting part and the second connecting part;
[0034] Figure 11 This is a partial sectional view of another embodiment of the ventilation therapy device of this utility model, wherein the first connecting part is Figure 7 The first connecting part shown;
[0035] Figure 12 yes Figure 11 The enlarged view of section D mainly shows the insertion and mating of the first connecting part and the second connecting part;
[0036] Figure 13 This is a partial cross-sectional view of another embodiment of the ventilation therapy device of this utility model, wherein the first connecting part is... Figure 3 The first connecting part shown;
[0037] Figure 14 yes Figure 13 The enlarged view of section E mainly shows the insertion and mating of the first connecting part and the second connecting part;
[0038] Figure 15 yes Figure 12 A schematic diagram of the circuit components, waterproof baffle, and torsion spring.
[0039] Explanation of reference numerals in the attached figures
[0040] 10-Humidifier, 11-First connecting part, 111-First electrode, 112-Protrusion, 113-First guide slope, 114-Second guide slope, 20-Main unit, 21-Second connecting part, 211-Second electrode, 212-Recess, 22-Waterproof baffle, 221-Slot, 23-Torsion spring, 24-Adapter socket, 25-PCB board, 26-Shaft. Detailed Implementation
[0041] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of this utility model by way of example, but should not be used to limit the scope of this utility model. This utility model can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0042] These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary and not as limiting.
[0043] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0044] Furthermore, the terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.
[0045] It should also be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.
[0046] All terms used in this invention have the same meaning as understood by one of ordinary skill in the art to which this invention pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.
[0047] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.
[0048] This utility model provides a power supply structure for a ventilation therapy device. The power supply structure is used to connect and supply power to the humidifier 10 and the main unit 20 of the ventilation therapy device. The power supply structure includes a first connecting part 11 and a second connecting part 21 that are adapted to each other. The first connecting part 11 is disposed on the humidifier 10 and has a first electrode 111 connected to the heating circuit of the humidifier 10. The second connecting part 21 is disposed on the main unit 20 and has a second electrode 211 connected to the circuit components of the main unit 20. The first electrode 111 and the second electrode 211 are configured to make contact with each other and conduct electricity when the first connecting part 11 and the second connecting part 21 are connected.
[0049] It should be noted that the connection between the first connecting part 11 and the second connecting part 21 can be configured as a plug-in connection or a surface contact connection between two planes.
[0050] It should be noted that the number of first electrodes 111 is two or more contact electrodes. When only the humidifier 10 needs to be powered on and heated, the first electrode 111 consists of two contact electrodes, i.e., a set of contact electrodes, one positive and one negative. When both powering on the humidifier and signal transmission are required, the number of contact electrodes of the first electrode 111 is greater than two. The number of second electrodes 211 corresponds to the number of first electrodes 111. The first electrodes 111 and the second electrodes 211 can be probes, plugs, or gold fingers (see...). Figure 15 ), shrapnel, etc.
[0051] This utility model, through the power supply structure provided by the above-described technical solution, achieves power supply or signal transmission by connecting the humidifier 10 to the main unit 20. This enables power supply and / or signal transmission to the heating circuit within the humidifier, eliminating the need for an external power source and reducing structural complexity. Furthermore, since the humidifier 10 can only be powered and heated when the first connecting part 11 and the second connecting part 21 are connected, the safety performance of the humidifier is effectively improved, enhancing the user experience.
[0052] In the above description, the connection between the first connecting part 11 and the second connecting part 21 can be configured as a plug-in connection or a surface contact connection between two planes. When the first connecting part 11 and the second connecting part 21 are in surface contact, the first electrode 111 is disposed on the surface of the first connecting part 11, and the second electrode 211 is disposed on the surface of the second connecting part 21 corresponding to the first electrode 111. The contact between the corresponding surfaces of the first electrode 111 and the second electrode 211 enables them to conduct electricity. When the first connecting part 11 and the second connecting part 21 are plugged in, the plugging can be complementary (e.g., a concave-convex structure), as long as it enables the first electrode 111 and the second electrode 211 to conduct electricity.
[0053] For example, in some embodiments, the first connecting portion 11 includes a recess on the humidifier 10, and the first electrode 111 is disposed within the recess; the second connecting portion 21 includes a protrusion on the main unit 20 that can be inserted into the recess, and the second electrode 211 is disposed on the protrusion or forms a protrusion. In use, the second electrode 211 and the first electrode 111 are made into contact and conduction by inserting the second connecting portion 21 into the first connecting portion 11.
[0054] In other embodiments, the first connecting portion 11 includes a protrusion 112 disposed on the humidifier 10, and a first electrode 111 disposed on any surface of the protrusion 112; the second connecting portion 21 includes a recess 212 disposed on the main unit 20 for insertion of the protrusion 112, and a second electrode 211 disposed within the recess 212. In use, the first electrode 111 and the second electrode 211 are made into contact and connected by inserting the first connecting portion 11 into the second connecting portion 21.
[0055] Specifically, such as Figures 1-3 In the illustrated embodiment, the first connecting portion 11 includes a protrusion 112 disposed on the humidifier 10. The protrusion 112 is square plate-shaped (of course, in other embodiments it can be other shapes, such as semicircular, triangular, etc.). A first electrode 111 is disposed on the front surface of the protrusion 112. The first electrode 111 has two contact electrodes, representing the positive and negative electrodes respectively, used to energize the heating circuit inside the humidifier. Figure 4 , Figure 6 and Figure 7 In the illustrated embodiment, the first electrode 111 is disposed on the upper surface of the protrusion 112. The first electrode 111 has two contact electrodes, representing the positive and negative terminals respectively, used to energize the heating circuit inside the humidifier. Figure 5 In the illustrated embodiment, the first electrode 111 is disposed on the lower surface of the protrusion 112. The first electrode 111 has multiple contact electrodes, which are used to energize the heating circuit inside the humidifier and transmit signals (e.g., detection signals of liquid level, temperature, and pressure inside the humidifier; a liquid level sensor, a temperature sensor, and a pressure sensor are connected to the heating circuit). Figure 8 In the embodiment shown, the first electrode 111 is disposed on the upper surface of the protrusion 112. The first electrode 111 has multiple contact electrodes, which are used to energize and transmit signals to the heating circuit inside the humidifier.
[0056] In this invention, in order to facilitate the insertion of the protrusion 112 into the recess 212 (i.e., to ensure the contact and conduction between the first electrode 111 and the second electrode 211), the protrusion 112 may be provided with a guide portion for guiding its insertion into the recess 212. Alternatively, the guide portion may be provided inside the recess 212 so that the protrusion 112 can be smoothly inserted into the recess 212.
[0057] The guide portion may include a horizontal insertion guide portion for guiding the protrusion into place in the horizontal direction and / or a vertical insertion guide portion for guiding the protrusion into place in the vertical direction.
[0058] Specifically, see Figure 3 , Figure 7 or Figure 8 The horizontal positioning guide may include first guide ramps 113 respectively disposed on both sides of the protrusion 112. The first guide ramps 113 are configured to extend outwards at an angle from the end of the protrusion 112 (i.e., the end furthest from the humidifier) toward the beginning of the protrusion (i.e., the end closest to the humidifier). See also Figures 3-5 The vertical positioning guide may include a second guide ramp 114 disposed on the top and / or bottom of the protrusion 112. The second guide ramp 114 on the top is configured to extend upward from the end of the protrusion toward the beginning, and the second guide ramp 114 on the bottom is configured to extend downward from the end of the protrusion toward the beginning.
[0059] Among them, such as Figure 4 and Figure 5 As shown, the vertical positioning guide may include a plurality of second guide ramps 114, which are spaced apart on the protrusion along the horizontal extension direction of the protrusion.
[0060] See Figures 9-14The second connecting part 21 includes a recess 212 provided on the main unit 20 for the protrusion 112 to be inserted, and the second electrode 211 is disposed in the recess 212. The circuit components in the main unit 20 may include an adapter socket 24 and a PCB board 25, the PCB board 25 is fixed to one end of the adapter socket 24, and the second electrode 211 is connected to the PCB board 25.
[0061] like Figure 10 In the embodiment shown, when the first electrode 111 is provided on the lower surface of the protrusion 112, the circuit assembly is provided below the recess 212, and the second electrode 211 extends into the recess 212 through the bottom wall of the recess 212 to contact the first electrode 111.
[0062] like Figure 12 In the embodiment shown, when the first electrode 111 is disposed on the upper surface of the protrusion 112, the circuit assembly is disposed above the recess 212, and the second electrode 211 extends into the recess 212 through the top wall of the recess 212 for contacting the first electrode 111.
[0063] like Figure 14 In the embodiment shown, with the first electrode 111 disposed on the front end face of the protrusion 112, the circuit assembly is disposed on the right side of the recess 212, and the second electrode 211 extends into the recess 212 through the right side wall of the recess 212 for contacting the first electrode 111.
[0064] In this invention, to achieve waterproofing and further improve safety, a waterproof baffle 22 is movably provided within the recess 212. The waterproof baffle 22 is configured to stop at the opening of the recess 212 and open inwards under the pressure of the protrusion. That is, the waterproof baffle 22 stopping at the opening of the recess 212 is its natural state. When the protrusion is inserted into the recess, the waterproof baffle 22 opens inwards under the pressure of the protrusion to allow it to enter the recess. By providing the waterproof baffle 22, the second electrode 211 within the recess 212 can be protected, improving safety.
[0065] The waterproof baffle 22 can be installed in the recess 212 in any manner. In some embodiments, the waterproof baffle 22 is rotatably disposed in the recess. Specifically, such as... Figure 15 As shown, the waterproof baffle 22 is rotatably mounted within the recess via pivots 26 located at both ends. Additionally, a torsion spring 23 may be provided, which provides a force to automatically return the waterproof baffle 22 to the stop position. Specifically, as... Figure 15 As shown, a slot 221 can be provided on the waterproof baffle 22, and a torsion spring 23 can be installed on the slot 221. The number of torsion springs 23 and slots 221 is not limited, but preferably two, located at both ends of the waterproof baffle 22 respectively.
[0066] In this invention, the rotatable connection position of the waterproof baffle 22 can be adjusted according to the setting position of the first electrode 111 on the protrusion. For example... Figure 10 As shown, when the first electrode 111 is located on the lower surface of the protrusion 112, the rotatable connection position of the waterproof baffle 22 is located in the upper part of the recess. For example... Figure 12 As shown, when the first electrode 111 is provided on the upper surface of the protrusion 112, the rotatable connection position of the waterproof baffle 22 is located in the lower part of the recess.
[0067] In another aspect, this utility model provides a ventilation therapy device, including a humidifier 10 and a main unit 20, and also includes the aforementioned power supply structure for the ventilation therapy device. The humidifier 10 receives power by connecting to the second connection of the main unit 20 via a first connection portion.
[0068] The ventilation therapy equipment may be a ventilator or an oxygen therapy device, etc.
[0069] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.
[0070] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the different embodiments can be combined in any way.
Claims
1. A power supply structure for a ventilation therapy device, characterized in that, The power supply structure is used to connect and supply power to the humidifier (10) of the ventilation therapy device and the main unit (20). The power supply structure includes a first connection part (11) and a second connection part (21) that are adapted to each other. The first connection part (11) is disposed on the humidifier (10) and has a first electrode (111) that is connected to the circuit of the humidifier (10). The second connection part (21) is disposed on the main unit (20) and has a second electrode (211) that is connected to the circuit assembly of the main unit (20). The first electrode (111) and the second electrode (211) are configured to make contact with each other and conduct electricity when the first connection part (11) and the second connection part (21) are connected.
2. The power supply structure for a ventilation therapy device according to claim 1, characterized in that, The connection between the first connecting part (11) and the second connecting part (21) can be either a plug-in connection or a surface contact connection.
3. The power supply structure for a ventilation therapy device according to claim 2, characterized in that, The first connecting part (11) includes a recess provided on the humidifier (10), and the first electrode (111) is provided in the recess; The second connecting part (21) includes a protrusion disposed on the host (20) that can be inserted into the recess, and the second electrode (211) is disposed on the protrusion or the second electrode (211) forms the protrusion.
4. The power supply structure for a ventilation therapy device according to claim 2, characterized in that, The first connecting part (11) includes a protrusion (112) disposed on the humidifier (10), and the first electrode (111) is disposed on any surface of the protrusion (112); The second connecting part (21) includes a recess (212) provided on the host (20) for the protrusion (112) to be inserted, and the second electrode (211) is provided in the recess (212).
5. The power supply structure for a ventilation therapy device according to claim 3 or 4, characterized in that, The protrusion is in the shape of a square plate, and / or One of the protrusion and the recess is provided with a guide portion for guiding it to connect with the other of the protrusion and the recess.
6. The power supply structure for a ventilation therapy device according to claim 5, characterized in that, The guide portion includes a horizontal insertion guide portion for guiding the protrusion into place in the horizontal direction and / or a vertical insertion guide portion for guiding the protrusion into place in the vertical direction.
7. The power supply structure for a ventilation therapy device according to claim 6, characterized in that, The horizontal positioning guide includes first guide ramps (113) respectively disposed on both sides of the protrusion, the first guide ramps (113) being configured to extend outward from the end of the protrusion toward the head end; and / or The vertical positioning guide includes a second guide slope (114) disposed on the top and / or bottom of the protrusion. The second guide slope (114) on the top is configured to extend upward from the end of the protrusion toward the beginning, and the second guide slope (114) on the bottom is configured to extend downward from the end of the protrusion toward the beginning.
8. The power supply structure for a ventilation therapy device according to claim 7, characterized in that, The vertical positioning guide includes a plurality of second guide ramps (114), which are spaced apart on the protrusion along the horizontal extension direction of the protrusion.
9. The power supply structure for a ventilation therapy device according to claim 3 or 4, characterized in that, A waterproof baffle (22) is movably provided in the recess. The waterproof baffle (22) is configured to stop at the opening of the recess and to open inward under the pressure of the protrusion.
10. The power supply structure for a ventilation therapy device according to claim 9, characterized in that, The waterproof baffle (22) is rotatably disposed within the recess.
11. The power supply structure for a ventilation therapy device according to claim 1, characterized in that, The first electrode (111) and the second electrode (211) are configured as a set of contact electrodes or multiple sets of contact electrodes that are compatible with each other; when the first electrode (111) is configured as the set of contact electrodes, the circuit of the humidifier (10) is an overall series circuit and the set of contact electrodes is connected to the series circuit; when the first electrode (111) is configured as multiple sets of contact electrodes, the circuit of the humidifier (10) includes multiple sets of parallel circuits, and each set of contact electrodes is connected to a set of circuits.
12. A ventilation therapy device, comprising a humidifier (10) and a main unit (20), characterized in that, It also includes a power supply structure for a ventilation therapy device according to any one of claims 1-11.