Air driving device and water heater

Abstract

The application is suitable for the technical field of bathroom equipment, and discloses an air driving device and a water heater. The air driving device comprises a tank body, a partition plate, a filling medium, a temperature control assembly and a pipeline assembly. The tank body is provided with a cavity, an air inlet and an air outlet. The air inlet and the air outlet are communicated with the cavity. The partition plate is slidably arranged in the cavity and separates the cavity into a first sub-chamber and a second sub-chamber. The volumes of the first sub-chamber and the second sub-chamber change with the sliding of the partition plate. The phase change medium is filled in the second sub-chamber, and the volume of the phase change medium changes with the change of temperature. The temperature control assembly is arranged at the position of the tank body located in the second sub-chamber, and is used for controlling the temperature change of the phase change medium and controlling the air suction or discharge of the tank body. The application realizes the air suction and discharge by using the phase change principle, reduces the noise of the water heater during work, and has low cost.

Description

Technical Field

[0001] This invention relates to the field of bathroom equipment technology, and in particular to an air-driven device and a water heater. Background Technology

[0002] In existing technologies, microbubble generators typically use pumps to inject outside air into water and mix it with the water to produce microbubble water. However, using pumps not only generates noise and is costly, but also consumes a lot of energy. Therefore, it is necessary to design an air-driven device that operates with low noise, low cost, and low energy consumption to generate gas-liquid mixed water. Summary of the Invention

[0003] The first objective of this invention is to provide an air-driven device that addresses the technical problems of high noise, high cost, and high energy consumption in microbubble generators during operation.

[0004] To achieve the above objectives, the present invention provides an air-driven device, comprising:

[0005] The tank body is provided with a cavity, an air inlet and an air outlet, and the air inlet and air outlet are respectively connected to the cavity;

[0006] A partition is slidably disposed in the cavity and divides the cavity into a first sub-chamber and a second sub-chamber. The volumes of the first sub-chamber and the second sub-chamber change as the partition slides.

[0007] The phase change medium is filled in the second sub-cavity, and the volume of the phase change medium changes with the temperature.

[0008] The temperature control component is located in the second sub-chamber of the tank to control the temperature change of the phase change medium, thereby controlling the tank's intake or exhaust of air.

[0009] Optionally, the temperature control assembly includes a heating pipe and a condensing pipe that are wound around the outside of the tank. The heating pipe is a hot water pipe for conveying hot water, and the condensing pipe is a cold water pipe for conveying cold water.

[0010] Optionally, the heating pipes are spirally wound around the outside of the tank; and / or,

[0011] The condenser piping is spirally wound around the outside of the tank.

[0012] Optionally, the air drive device further includes an intake pipe and an outlet pipe, the intake pipe being connected to an air inlet and the outlet pipe being connected to an air outlet, the intake pipe being provided with a first one-way valve and the outlet pipe being provided with a second one-way valve; and / or;

[0013] The air inlet and air outlet are located in the first sub-chamber and are connected to the first sub-chamber.

[0014] A second objective of this invention is to provide a water heater comprising:

[0015] The aforementioned air-driven device;

[0016] A first heating device, the first heating device having a first water inlet and a first water outlet;

[0017] A water inlet pipe is connected to a first water inlet for supplying water to the first heating device;

[0018] The water outlet pipe is connected to the first water outlet for outputting hot water from the first heating device;

[0019] An air outlet pipe is connected between the air outlet and the water outlet pipe to supply air to the water outlet pipe.

[0020] Optionally, the air-driven device includes a heating pipe and a condensing pipe, and the water heater also includes a first water supply pipe and a second water supply pipe, the heating pipe having a second water inlet and a second water outlet, and the condensing pipe having a third water inlet and a third water outlet;

[0021] The first water supply pipeline is connected to the third water inlet and the water supply pipeline, and the second water supply pipeline is connected to the third water outlet and the water supply pipeline.

[0022] The first water supply pipeline is equipped with a first control valve for controlling the opening and closing of the pipeline.

[0023] Optionally, the water outlet pipeline includes a first branch and a second branch, the first branch being connected to the first heating device and the second water inlet, and the second branch being connected to the first branch;

[0024] A second control valve is installed on the first branch line to control the on / off state of the pipeline.

[0025] Optionally, the water heater further includes a thermostatic module and a third water supply pipe. The thermostatic module is located on the first branch line, between the first heating device and the gas outlet pipe. One end of the third water supply pipe is connected to the thermostatic module, and the other end is connected to the inlet pipe, located between the first heating device and the first water supply pipe; and / or,

[0026] The air outlet pipe is connected to the first branch pipe and is located between the second control valve and the constant temperature module. The second branch pipe is connected between the second control valve and the air outlet pipe.

[0027] Optionally, the water heater includes a fourth water supply line, which is connected to the second outlet and the second branch line;

[0028] The water heater also includes a second heating device, which is located on the first branch line and between the second control valve and the second branch line.

[0029] Optionally, the water heater also includes a thermostatic module and a third water supply pipe, the thermostatic module being located on the second branch line, and the third water supply pipe connecting the thermostatic module and the inlet water pipe; and / or,

[0030] The gas outlet pipe is connected to the first branch pipe and is located between the second control valve and the first heating device. The second branch pipe is connected between the gas outlet pipe and the second control valve.

[0031] Optionally, the water heater includes a fourth water supply pipe, one end of which is connected to the second water outlet, and the other end is connected to the second branch pipe, located between the first branch pipe and the thermostatic module; and / or,

[0032] The first water supply pipeline is connected to the inlet water pipeline and is located between the third water supply pipeline and the first heating device.

[0033] Optionally, the second water supply pipeline is connected to the water inlet pipeline and is located between the first water supply pipeline and the first heating device.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0035] The air-driven device provided by this invention includes a tank, a baffle plate, a filling medium, a temperature control component, and a piping assembly. The tank has a cavity, an air inlet, and an air outlet, which are respectively connected to the cavity. The baffle plate is slidably disposed within the cavity and divides the cavity into a first sub-chamber and a second sub-chamber, the volumes of which change with the sliding of the baffle plate. A phase change medium fills the second sub-chamber, and its volume changes with temperature. The temperature control component is located in the second sub-chamber of the tank to control the temperature change of the phase change medium, thereby controlling the tank's intake or exhaust of air. This invention utilizes the phase change principle to achieve air intake and exhaust, reducing the noise of the water heater and offering low cost. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 This is a simplified structural diagram of the air-driven device provided in Embodiment 1 of the present invention;

[0038] Figure 2 This is a simplified structural diagram of the water heater provided in Embodiment 2 of the present invention;

[0039] Figure 3 This is a simplified structural diagram of the water heater provided in Embodiment 3 of the present invention.

[0040] Explanation of icon numbers:

[0041] 100. Air-driven device; 110. Tank body; 111. Cavity; 1111. First sub-chamber; 1112. Second sub-chamber; 112. Air inlet; 113. Air outlet; 120. Baffle plate; 130. Phase change medium; 140. Temperature control component; 141. Heating pipeline; 1411. Second water inlet; 1412. Second water outlet; 142. Condensation pipeline; 1421. Third water inlet; 1422. Third water outlet; 150. Air inlet pipeline; 160. Air outlet pipeline; 170. First check valve; 180. Second check valve;

[0042] 200. Water heater; 210. First heating device; 211. First water inlet; 212. First water outlet; 220. Water inlet pipe; 230. Water outlet pipe; 231. First branch pipe; 232. Second branch pipe; 240. First water supply pipe; 250. Second water supply pipe; 201. First control valve; 202. Second control valve; 260. Thermostatic module; 270. Third water supply pipe; 280. Fourth water supply pipe; 290. Second heating device. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0045] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0046] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0047] Example 1:

[0048] like Figure 1As shown, an air-driven device 100 provided in this embodiment of the invention includes a tank 110, a partition 120, a phase change medium 130, and a temperature control component 140. The tank 110 has a cavity 111, an air inlet 112, and an air outlet 113, which are respectively connected to the cavity 111. The partition 120 is slidably disposed within the cavity 111 and divides the cavity 111 into a first sub-chamber 1111 and a second sub-chamber 1112. The volumes of the first sub-chamber 1111 and the second sub-chamber 1112 change as the partition 120 slides. The phase change medium 130 fills the second sub-chamber 1112, and the volume of the phase change medium 130 changes with temperature. A temperature control component 140 is located in the second sub-chamber 1112 of the tank 110 to control the temperature change of the phase change medium 130, thereby controlling the intake or exhaust of air from the tank 110. Exemplarily, an air inlet 112 and an air outlet 113 are located in and communicate with the first sub-chamber 1111, and the second sub-chamber 1112 is filled with the phase change medium 130. When the temperature of the temperature control component 140 changes, it causes a temperature change in the tank 110, which in turn causes a change in the volume of the phase change medium 130, causing the partition 120 to slide back and forth within the cavity 111. When the temperature of the temperature control component 140 decreases, the temperature of the tank 110 decreases accordingly, the volume of the phase change medium 130 decreases, the volume of the second sub-chamber 1112 decreases, and the partition 120 slides towards the second sub-chamber 1112. At this time, outside air enters the first sub-chamber 1111 from the air inlet 112. When the temperature of the temperature control component 140 increases, the temperature of the tank 110 increases accordingly, the volume of the phase change medium 130 increases, and the volume of the second sub-chamber 1112 increases. The partition 120 slides towards the first sub-chamber 1111, and the air in the first sub-chamber 1111 is discharged from the air outlet 113, thus completing the air intake and exhaust process. After absorbing heat, the phase change medium 130 vaporizes from a liquid state or sublimates from a solid state into a gaseous state, increasing the pressure in the second sub-chamber 1112 and pushing the partition 120 towards the first sub-chamber 1111, thus reducing the space of the first sub-chamber 1111. Conversely, after the phase change medium 130 releases heat, it changes from a gaseous state to a liquid or solid state, decreasing the pressure in the second sub-chamber 1112 and pushing the partition 120 towards the second sub-chamber 1112, thus increasing the space of the first sub-chamber 1111. Its principle is similar to that of a syringe, with the partition 120 acting as the piston. The difference is that a syringe is propelled by a manually applied force, while this invention utilizes the properties of the phase change medium 130 to apply force. Furthermore, it should be noted that the air-driven device 100 provided by this invention is applied to a water heater 200, connecting the air outlet 113 to the water heater 200. The air discharged from the air outlet 113 mixes with the water in the water heater 200 to produce a gas-liquid mixture.

[0049] like Figure 1As shown, in one embodiment, the temperature control assembly 140 includes a heating pipe 141 and a condensing pipe 142 wound around the tank body 110. Exemplarily, the heating pipe 141 and the condensing pipe 142 are specifically wound around the tank body 110 at the location of the second sub-chamber 1112, primarily for heating and condensing the tank body 110 at the location of the second sub-chamber 1112. When the heating pipe 141 heats the tank body 110, the temperature of the tank body 110 increases; when the condensing pipe 142 cools the tank body 110, the temperature of the tank body 110 decreases.

[0050] like Figure 1 As shown, in one embodiment, the heating pipe 141 is spirally wound around the outside of the tank 110; the condensing pipe 142 is spirally wound around the outside of the tank 110. Exemplarily, the spirally and uniformly wound heating pipe 141 provides better and more uniform heating when heating the tank 110; the spirally and uniformly wound condensing pipe 142 provides better cooling effect when cooling the tank 110.

[0051] like Figure 1 As shown, in one embodiment, the heating pipe 141 is a hot water pipe for conveying hot water, and the condensing pipe 142 is a cold water pipe for conveying cold water. For example, the heating pipe 141 conveys hot water to heat the tank 110, and the condensing pipe 142 conveys cold water to cool the tank 110.

[0052] like Figure 1 As shown, in one embodiment, the air-driven device 100 further includes an air inlet pipe 150 and an air outlet pipe 160. The air inlet pipe 150 is connected to the air inlet 112, and the air outlet pipe 160 is connected to the air outlet 113. A first one-way valve 170 is provided on the air inlet pipe 150, and a second one-way valve 180 is provided on the air outlet pipe 160. For example, the first one-way valve 170 is provided on the air inlet pipe 150 to ensure that only outside air can enter the first sub-chamber 1111, while the air in the first sub-chamber 1111 will not exit through the air inlet pipe 150. The air outlet pipe 160 is connected to the water heater 200. The second one-way valve 180 is provided on the air outlet pipe 160 to ensure that the air in the first sub-chamber 1111 enters the water heater 200 through the air outlet pipe 160 and mixes with the water, while the water in the water heater 200 will not flow into the first sub-chamber 1111.

[0053] like Figure 1As shown, in one embodiment, the air inlet 112 and the air outlet 113 are located in and connected to the first sub-chamber 1111. Exemplarily, the second sub-chamber 1112 is filled with a phase change medium 130 to induce a volume change, while the first sub-chamber 1111 serves as a transfer station for air. Outside air enters the first sub-chamber 1111 through the air inlet 112 and then enters the water heater 200 through the air outlet 113.

[0054] The following is combined with Figure 1 Briefly describe the working process of the air-driven device 100 in this embodiment:

[0055] When the condenser pipe 142 is working, it cools the tank 110, causing the temperature of the tank 110 to decrease accordingly. This reduces the volume of the phase change medium 130, thus decreasing the volume of the second sub-chamber 1112. The partition 120 then slides towards the second sub-chamber 1112, allowing outside air to enter the first sub-chamber 1111 through the air inlet 112. When the heating pipe 141 is working, it heats the tank 110, causing the temperature of the tank 110 to increase accordingly. This increases the volume of the phase change medium 130, thus increasing the volume of the second sub-chamber 1112. The partition 120 then slides towards the first sub-chamber 1111, allowing air in the first sub-chamber 1111 to be discharged through the air outlet 113, thereby completing the air intake and exhaust process.

[0056] Example 2:

[0057] like Figure 2 As shown, the main difference between this embodiment and Embodiment 1 lies in the subject of protection. Specifically:

[0058] A second object of the present invention is to provide a water heater 200, comprising the aforementioned air-driven device 100, a first heating device 210, a water inlet pipe 220, and a water outlet pipe 230. The first heating device 210 has a first water inlet 211 and a first water outlet 212. The water inlet pipe 220 is connected to the first water inlet 211 for supplying water to the first heating device 210. The water outlet pipe 230 is connected to the first water outlet 212 for discharging hot water from the first heating device 210. An air outlet pipe 160 is connected between an air outlet 113 and the water outlet pipe 230 for supplying air to the water outlet pipe 230. For example, cold water from the outside enters the heating device through the inlet pipe 220, and the water heated by the heating device flows out through the outlet pipe 230 for user use. The air drive device 100 is connected to the outlet pipe 230 through the air outlet pipe 160. Air in the first sub-chamber 1111 enters the outlet pipe 230 through the air outlet pipe 160 and mixes with the hot water in the outlet pipe 230 to form a gas-liquid mixture. Figure 1 and Figure 2As shown, in one embodiment, the air-driven device 100 includes a heating pipe 141 and a condensing pipe 142. The heating pipe 141 has a second inlet 1411 and a second outlet 1412, and the condensing pipe 142 has a third inlet 1421 and a third outlet 1422. For example, hot water enters the heating pipe 141 through the second inlet 1411 and flows out through the second outlet 1412, while cold water enters the heating pipe 141 through the third inlet 1421 and flows out through the third outlet 1422.

[0059] like Figure 1 and Figure 2 As shown, in one embodiment, the water heater 200 further includes a first water supply pipe 240 and a second water supply pipe 250. The first water supply pipe 240 is connected to the third water inlet 1421 and the water inlet pipe 220, and the second water supply pipe 250 is connected to the third water outlet 1422 and the water inlet pipe 220. Exemplarily, external cold water enters the first heating device 210 directly via the water inlet pipe 220, and simultaneously flows through the first water supply pipe 240 through the condenser pipe 142, then back to the water inlet pipe 220 via the second water supply pipe 250, and finally is delivered to the first heating device 210 via the water inlet pipe 220. This effectively cools the tank 110 while delivering external water to the first heating device 210, eliminating the need for a separate water circuit, thus saving energy and protecting the environment.

[0060] like Figure 1 and Figure 2 As shown, a first control valve 201 for controlling the opening and closing of the first water supply pipeline 240 is provided on the first water supply pipeline 240. For example, the first control valve 201 is used to control the opening and closing of the first water supply pipeline 240. When the tank 110 does not need cooling treatment, the first control valve 201 disconnects the first water supply pipeline 240. At this time, cold water from the outside can only enter the first heating device 210 directly through the water inlet pipeline 220.

[0061] like Figure 1 and Figure 2 As shown, in one embodiment, the water outlet pipe 230 includes a first branch pipe 231 and a second branch pipe 232. The first branch pipe 231 is connected to the first heating device 210 and the second water inlet 1411, and the second branch pipe 232 is connected to the first branch pipe 231. Exemplarily, hot water in the first heating device 210 is transported to the heating pipe 141 through the first branch pipe 231 so that the heating pipe 141 heats the tank 110. The second branch pipe 232 is used to mix the water flowing out of the first heating device 210 with the air flowing out of the air outlet pipe 160 to form a gas-liquid mixture, which is then output to the outside for user use. Furthermore, this embodiment directly uses the hot water in the first heating device 210 to heat the tank 110, eliminating the need for a separate hot water source and significantly saving energy.

[0062] like Figure 1 and Figure 2 As shown, in one embodiment, a second control valve 202 for controlling the on / off state of the pipeline is provided on the first branch 231. Exemplarily, the second control valve 202 is used to control the on / off state of the first branch 231. When the tank 110 does not require heating treatment, the second control valve 202 disconnects the first branch 231, and at this time, hot water can only be output to the outside through the second branch 232.

[0063] like Figure 1 and Figure 2 As shown, in one embodiment, the water heater 200 further includes a thermostatic module 260 and a third water supply pipe 270. The thermostatic module 260 is disposed on the first branch pipe 231 and located between the first heating device 210 and the gas outlet pipe 160. One end of the third water supply pipe 270 is connected to the thermostatic module 260, and the other end is connected to the inlet pipe 220, located between the first heating device 210 and the first water supply pipe 240. For example, hot water from the first heating device 210 is transported to the thermostatic module 260 through the first branch pipe 231. The third water supply pipe 270 is connected to the inlet pipe 220 to transport cold water from the inlet pipe 220 to the thermostatic module 260. The thermostatic module 260 is used to mix the hot and cold water to achieve the user's desired bathing temperature before outputting it to the outside.

[0064] like Figure 1 and Figure 2 As shown, in one embodiment, the air outlet pipe 160 is connected to the first branch pipe 231 and located between the second control valve 202 and the thermostatic module 260, while the second branch pipe 232 is connected between the second control valve 202 and the air outlet pipe 160. For example, in the direction of flow of external cold water along the water inlet pipe 220, the water inlet pipe 220 is sequentially connected to the first water supply pipe 240, the second water supply pipe 250, and the third water supply pipe 270. This corresponds to the gas-liquid mixture formed when hot water mixes with air while flowing through the heating pipe 141.

[0065] like Figure 1 and Figure 2 As shown, in one embodiment, the water heater 200 includes a fourth water supply pipe 280, which is connected to the second outlet 1412 and the second branch pipe 232. Exemplarily, hot water from the first heating device 210 is transported to the heating pipe 141 via the first branch pipe 231, then flows through the fourth water supply pipe 280 into the second branch pipe 232, and finally outputs to the outside via the second branch pipe 232.

[0066] like Figure 1 and Figure 2As shown, the water heater 200 also includes a second heating device 290, which is disposed on the first branch 231 and located between the second control valve 202 and the second branch 232. Exemplarily, in this embodiment, the hot water flowing through the heating pipe 141, after being processed by the thermostat module 260, may result in insufficient temperature of the hot water in the heating pipe 141, thus affecting the working effect of the air drive device 100. Therefore, a second heating device 290 is added to the first branch 231. The second heating device 290 is a small heating device that reheats the water in the first branch 231 to ensure the working effect of the air drive device 100.

[0067] Apart from the differences mentioned above, the structure of the air drive device 100 and its components provided in this embodiment can be optimized with reference to Embodiment 1, and will not be described in detail here.

[0068] Example 3:

[0069] like Figure 3 As shown, the main difference between this embodiment and Embodiment Two lies in the location of the constant temperature module 260. Specifically:

[0070] like Figure 1 and Figure 3 As shown, in one embodiment, the water heater 200 further includes a thermostatic module 260 and a third water supply pipe 270. The thermostatic module 260 is disposed on the second branch pipe 232, and the third water supply pipe 270 is connected to the thermostatic module 260 and the inlet pipe 220. For example, hot water from the first heating device 210 is supplied to the thermostatic module 260 through the second branch pipe 232. The third water supply pipe 270 is connected to the inlet pipe 220 to supply cold water from the inlet pipe 220 to the thermostatic module 260. The thermostatic module 260 is used to mix the hot and cold water to achieve the desired bathing temperature before discharging it to the outside.

[0071] like Figure 1 and Figure 3 As shown, the gas outlet pipe 160 is connected to the first branch pipe 231 and is located between the second control valve 202 and the first heating device 210. The second branch pipe 232 is connected between the gas outlet pipe 160 and the second control valve 202. For example, this corresponds to the gas-liquid mixture formed when hot water mixes with air while flowing through the heating pipe 141.

[0072] like Figure 1 and Figure 3As shown, in one embodiment, the water heater 200 includes a fourth water supply pipe 280. One end of the fourth water supply pipe 280 is connected to the second water outlet 1412, and the other end is connected to the second branch pipe 232, located between the first branch pipe 231 and the thermostatic module 260. Exemplarily, hot water from the first heating device 210 is transported to the heating pipe 141 through the first branch pipe 231, then flows through the fourth water supply pipe 280 through the second branch pipe 232, and finally flows through the second branch pipe 232 through the thermostatic module 260 before being output to the outside.

[0073] like Figure 1 and Figure 3 As shown, in one embodiment, the first water supply pipe 240 is connected to the inlet pipe 220 and is located between the third water supply pipe 270 and the first heating device 210. The second water supply pipe 250 is connected to the inlet pipe 220 and is located between the first water supply pipe 240 and the first heating device 210. Exemplarily, in the direction of flow of external cold water along the inlet pipe 220, the inlet pipe 220 is sequentially connected to the third water supply pipe 270, the first water supply pipe 240, and the second water supply pipe 250. This is equivalent to the heating tank 110 being in front, followed by the mixture of hot and cold water to form the water at the indicated temperature. This avoids affecting the air drive and, compared to Embodiment 2, reduces the use of the second heating device 290.

[0074] Apart from the differences mentioned above, the structure of the water heater 200 and its components provided in this embodiment can be optimized by referring to Embodiment 2, and will not be described in detail here.

[0075] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air drive device characterized by comprising: The air driving device comprises: a tank body provided with a cavity, an air inlet and an air outlet, the air inlet and the air outlet being respectively communicated with the cavity; a partition plate slidably arranged in the cavity and separating the cavity into a first sub-chamber and a second sub-chamber, the volumes of the first sub-chamber and the second sub-chamber being changed following the sliding of the partition plate; a phase change medium filled in the second sub-chamber, the volume of the phase change medium being changed following the change of temperature; a temperature control assembly arranged at the position of the tank body located at the second sub-chamber for controlling the temperature change of the phase change medium to control the air suction or discharge of the tank body.

2. The air propulsion device of claim 1, wherein, The temperature control assembly comprises a heating pipe and a condensing pipe arranged outside the tank body, the heating pipe being used for conveying hot water, and the condensing pipe being used for conveying cold water.

3. The air propulsion device of claim 2, wherein, The heating pipe is spirally arranged outside the tank body; and / or The condensing pipe is spirally arranged outside the tank body.

4. The air propulsion device of any one of claims 1-3, wherein, The air driving device further comprises an air inlet pipe and an air outlet pipe, the air inlet pipe being connected with the air inlet, the air outlet pipe being connected with the air outlet, a first one-way valve being arranged on the air inlet pipe, and a second one-way valve being arranged on the air outlet pipe; and / or The air inlet and the air outlet are arranged at the position of the first sub-chamber and communicated with the first sub-chamber.

5. A water heater, characterized by The air driving device comprises: The air driving device according to any one of claims 1-4; a first heating device having a first water inlet and a first water outlet; a water inlet pipe connected with the first water inlet for conveying water to the first heating device; a water outlet pipe connected with the first water outlet for outputting hot water in the first heating device; an air outlet pipe connected between the air outlet and the water outlet pipe for conveying air to the water outlet pipe.

6. A water heater as claimed in claim 5 wherein the heater is a gas heater. The air driving device comprises a heating pipe and a condensing pipe, the water heater further comprises a first water conveying pipe and a second water conveying pipe, the heating pipe has a second water inlet and a second water outlet, and the condensing pipe has a third water inlet and a third water outlet; The first water conveying pipe is connected between the third water inlet and the water inlet pipe, and the second water conveying pipe is connected between the third water outlet and the water inlet pipe; A first control valve for controlling the opening and closing of the pipe is arranged on the first water conveying pipe.

7. A water heater as claimed in claim 6 wherein the heater is a gas heater. The water outlet pipe comprises a first branch pipe and a second branch pipe, the first branch pipe is connected between the first heating device and the second water inlet, and the second branch pipe is connected with the first branch pipe; A second control valve for controlling the opening and closing of the pipe is arranged on the first branch pipe.

8. The water heater of claim 7, wherein the controller is configured to: The water heater further comprises a constant temperature module and a third water conveying pipe, the constant temperature module is arranged on the first branch pipe and located between the first heating device and the air outlet pipe, one end of the third water conveying pipe is connected with the constant temperature module, and the other end is connected with the water inlet pipe and located at the position between the first heating device and the first water conveying pipe; and / or, The outlet pipeline is connected to the first branch pipeline and located between the second control valve and the thermostat module, and the second branch pipeline is connected to a position between the second control valve and the outlet pipeline.

9. The water heater of claim 8, wherein the controller is configured to: The water heater further comprises a fourth water pipeline, which is connected to the second water outlet and the second branch pipeline. The water heater further comprises a second heating device, which is arranged on the first branch pipeline and located between the second control valve and the second branch pipeline.

10. The water heater of claim 7, wherein the heater is a gas burner. The water heater further comprises a thermostat module and a third water pipeline, the thermostat module is arranged on the second branch pipeline, and the third water pipeline is connected to the water inlet pipeline and the thermostat module; and / or, The outlet pipeline is connected to the first branch pipeline and located between the second control valve and the first heating device, and the second branch pipeline is connected to a position between the outlet pipeline and the second control valve.

11. The water heater of claim 10, wherein the controller is configured to: The water heater comprises a fourth water pipeline, one end of which is connected to the second water outlet, and the other end is connected to the second branch pipeline and located between the first branch pipeline and the thermostat module; and / or, The first water pipeline is connected to the water inlet pipeline and located between the third water pipeline and the first heating device.

12. The water heater of claim 7, wherein the heater is a gas burner. The second water pipeline is connected to the water inlet pipeline and located between the first water pipeline and the first heating device.

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