Water heating blanket

Abstract

The utility model relates to a water heating blanket. The water heating blanket comprises a blanket, a main machine, a first connecting pipe and a second connecting pipe. The blanket comprises a water inlet and a water outlet which are communicated with each other; the host comprises a water tank and an air outlet pump, the air outlet pump comprises an air outlet, and the air outlet is provided with a humidity sensor; the water heating blanket can be switched between a heating state and a drainage state, in the heating state, the first connecting pipe communicates with the water tank and the water inlet, and the second connecting pipe communicates with the water outlet and the water tank; in a drainage state, the first connecting pipe is communicated with the air outlet and the water inlet, one end of the second connecting pipe is communicated with the water outlet, and the other end is communicated with the outside; the air outlet pump introduces air into the first connecting pipe and stops working when the humidity sensor detects that the humidity in the air outlet is smaller than a preset value. According to the water heating blanket, the humidity sensor is arranged at the air outlet of the air outlet pump, the humidity sensor is electrically connected with the air outlet pump to detect the humidity of the air outlet, automatic drainage is achieved in the drainage state, and the automatic drainage effect of the water heating blanket is improved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to a water heating blanket. Background Art

[0002] During the use of a water heating blanket, the water used as the heat conduction medium is repeatedly circulated and heated. Over time, scale is likely to form, and the water in the water heating blanket needs to be replaced. When changing seasons, in order to facilitate storage, the water in the water heating blanket also needs to be drained. Most water heating blankets adopt a manual drainage method, that is, a pump is used to pump air into the blanket, and the water in the blanket is discharged through air pressure. The operation is laborious, and the drainage effect is not good, and it is easy to leave residues. Utility Model Content

[0003] In view of the problem that the interior of the blanket of the existing water heating blanket is likely to leave residues when draining water, this application provides a water heating blanket, which has the technical effects of automatic drainage and reduced water residues.

[0004] A water heating blanket, comprising:

[0005] A blanket, including a water inlet and a water outlet that are in communication with each other;

[0006] A main body, including a water tank and an air outlet pump. The air outlet pump includes an air outlet, and a humidity sensor is provided at the air outlet;

[0007] A first connecting pipe and a second connecting pipe;

[0008] The water heating blanket can be switched between a heating state and a drainage state. In the heating state, the first connecting pipe connects the water tank and the water inlet, and the second connecting pipe connects the water outlet and the water tank;

[0009] In the drainage state, the first connecting pipe connects the air outlet and the water inlet, one end of the second connecting pipe is connected to the water outlet, and the other end is connected to the outside; the air outlet pump injects gas into the first connecting pipe and stops working when the humidity sensor detects that the humidity inside the air outlet is less than a preset value.

[0010] In summary, by setting a humidity sensor at the air outlet of the air outlet pump and electrically connecting the humidity sensor to the air outlet pump, the above water heating blanket realizes automatic drainage in the drainage state by detecting the humidity of the air outlet, improving the automatic drainage effect of the water heating blanket.

[0011] In one embodiment, in the drainage state, the air outlet pump also continues to operate when the humidity sensor detects that the humidity inside the air outlet is greater than or equal to the preset value.

[0012] In the drainage state, after the air outlet pump operates for a period of time (e.g., 30 seconds), the air outlet pump pauses operation, and the humidity sensor starts to operate. During this process, the water in the blanket is discharged outward under the action of the air outlet pump. If the internal humidity of the air outlet detected by the humidity sensor is greater than or equal to the preset value, it proves that there is still a lot of water remaining inside the blanket at this time, and the air outlet pump continues to operate, and the water inside the blanket is discharged outward under the action of the air outlet pump.

[0013] After the air outlet pump operates for another 30 seconds, it pauses operation again, and the humidity sensor continues to detect the internal humidity of the water outlet. This process is repeated until the humidity value detected by the humidity sensor is lower than the preset value, and then the air outlet pump stops operating, which means that the water in the blanket is basically discharged.

[0014] The above settings improve the efficiency of the air outlet pump in discharging the remaining water in the blanket, increase the dryness inside the blanket, and reduce the probability of scale formation inside the blanket.

[0015] In one embodiment, the humidity sensor is detachably installed inside the air outlet.

[0016] When the humidity sensor is damaged, replace the damaged humidity sensor with a new one and install it in the air outlet. Compared with replacing the entire main unit, only replacing the damaged humidity sensor reduces the maintenance cost of the water heating blanket.

[0017] In one embodiment, the water tank is provided with a first plug connector and a second plug connector. One of the first plug connector and the second plug connector is provided with a water outlet end, and the other is provided with a water return end. In the heating state, the water outlet end is connected to the first connecting pipe, and the water return end is connected to the second connecting pipe.

[0018] The plug-in connection method simplifies the connection method between each connecting pipe and the water tank, facilitating the installation and disassembly of the connecting pipes.

[0019] In one embodiment, the first plug connector and the second plug connector have the same structure.

[0020] With such a setting, not only the probability of delaying the installation speed of the water heating blanket due to confusing the first connecting pipe and the second connecting pipe is reduced, but also the processing difficulty of the water tank is reduced.

[0021] In one embodiment, in the drainage state, the first connecting pipe and the second connecting pipe can be replaced with each other.

[0022] Assume that at the initial stage of drainage, one end of the first connecting pipe is connected to the air outlet of the air outlet pump, and the other end of the first connecting pipe is connected to the water inlet of the blanket. One end of the second connecting pipe is connected to the water outlet of the blanket, and the other end of the second connecting pipe can be suspended above the water basin.

[0023] The water in the blanket flows into the water basin through the second connecting pipe under the action of the air outlet pump. Because the air outlet pump injects a large amount of gas into the first connecting pipe, the first connecting pipe can be air-dried. To be exact, the gas injected by the air outlet pump can air-dry the area it flows through.

[0024] After some water in the blanket is drained, the air outlet pump can be paused, and the first connecting pipe and the second connecting pipe are replaced with each other. That is, one end of the second connecting pipe is connected to the air outlet of the air outlet pump, and the other end of the second connecting pipe is connected to the water inlet of the blanket. One end of the first connecting pipe is connected to the water outlet of the blanket, and the other end of the first connecting pipe can be suspended above the water basin.

[0025] Then, start the air outlet pump again. The gas injected by the air outlet pump flows through the second connecting pipe, the blanket, and the first connecting pipe in sequence. In this way, the first connecting pipe, the blanket, and the second connecting pipe can be air-dried for the second time, which can not only reduce the degree of water residue in the blanket, but also reduce the degree of residual water in each connecting pipe.

[0026] In one of the embodiments, the host machine is further provided with a time detection component, and the time detection component is electrically connected to the humidity sensor;

[0027] In the drainage state, when the running time of the air outlet pump reaches the threshold value, the time detection component controls the humidity sensor to operate.

[0028] In the above solution, by setting the time detection component to detect the running time of the air outlet pump, and electrically connecting the time detection component to the humidity sensor to regularly detect the humidity of the air outlet and control the running time of the air outlet pump, the probability of excessive operation of the air outlet pump is reduced. While reducing the degree of water residue in the blanket, the power consumption of the water heating blanket is reduced.

[0029] In one of the embodiments, the water heating blanket further includes a heating component, and the heating component is arranged at the bottom of the water tank and is used to heat the water tank.

[0030] In the initial stage when the water heating blanket is in the heating mode, the heating element heats the outside of the water tank to transfer heat to the inside of the water tank, thereby heating the water inside the water tank. When the water in the water tank is heated to a certain degree, it is then transmitted into the blanket through the first connecting pipe. After the water in the blanket undergoes heat exchange and returns to the water tank through the second connecting pipe, it can be reheated. With such a setting, the heating method of the water in the water tank can be simplified, and the difficulty of obtaining the heating element can be reduced.

[0031] In one embodiment, the main body further includes a housing, the interior of which is divided into two independent areas. One area is provided with the water tank, and the other area is provided with the air outlet pump.

[0032] Dividing the interior space of the housing into two non-interfering areas reduces the probability that the water in the water tank overflows into the area where the air outlet pump is located and affects the operation of the air outlet pump.

[0033] In one embodiment, the housing is provided with an air inlet, which is communicated with the air outlet pump and allows external gas to enter the air outlet pump.

[0034] The above setting can protect the air outlet pump from being damaged due to interference with external parts, and reduces the probability of the air outlet pump being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the structure of the main body of the water heating blanket provided by some embodiments of the present application.

[0036] Figure 2 It is a schematic diagram of the structure of the blanket of the water heating blanket provided by some embodiments of the present application.

[0037] Figure 3 It is a schematic diagram of the structure of the water heating blanket with some structures hidden provided by some embodiments of the present application.

[0038] DESCRIPTION OF THE REFERENCE NUMERALS

[0039] 10, blanket; 11, water inlet; 12, water outlet; 20, main body; 21, water tank; 211, water outlet end; 212, water return end; 22, air outlet pump; 221, air outlet; 23, housing; 231, air inlet; 30, first connecting pipe; 40, second connecting pipe; 50, humidity sensor; 60, heating element; 70, heating pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0041] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0042] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0043] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0045] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0046] Please refer to Figure 1 and Figure 2 , some embodiments of the present application provide a water heating blanket, which includes a blanket 10, a main body 20, a first connecting pipe 30 and a second connecting pipe 40. The blanket 10 includes a water inlet 11 and a water outlet 12 that communicate with each other; the main body 20 includes a water tank 21 and an air outlet pump 22, and the air outlet pump 22 includes an air outlet 221, and a humidity sensor 50 is provided at the air outlet 221; the water heating blanket can be switched between a heating state and a drainage state. In the heating state, the first connecting pipe 30 connects the water tank 21 and the water inlet 11, and the second connecting pipe 40 connects the water outlet 12 and the water tank 21; in the drainage state, the first connecting pipe 30 connects the air outlet 221 and the water inlet 11, one end of the second connecting pipe 40 communicates with the water outlet 12, and the other end communicates with the outside. The air outlet pump 22 injects gas into the first connecting pipe 30 and stops working when the humidity sensor 50 detects that the humidity inside the air outlet 221 is less than a preset value.

[0047] The main body 20 is used to input hot water into the water heating blanket, or to drain the residual water in the water heating blanket when the water heating blanket is not in use. The blanket 10 is used to be laid on a mattress. When the user lies on the blanket 10, if hot water transported from the main body 20 is flowing inside the blanket 10 at this time, the blanket 10 can dissipate heat for the user to keep warm.

[0048] The first connecting pipe 30 and the second connecting pipe 40 are made of the same material, both of which are high-temperature resistant hoses. The water heating blanket further includes a circulating water pump, which is disposed in the main body 20 and is used to realize the water circulation between the water in the water tank 21 and the water in the blanket 10.

[0049] Next, taking the use of the water heating blanket in different scenarios as an example, the working principles of the water heating blanket in the heating state and the drainage state will be described.

[0050] When the water heating blanket is in the heating state, one end of the first connecting pipe 30 is connected to the water tank 21, and the other end of the first connecting pipe 30 is connected to the water inlet 11 of the blanket 10. One end of the second connecting pipe 40 is connected to the water tank 21, and the other end of the second connecting pipe 40 is connected to the water outlet 12 of the blanket 10.

[0051] After the water in the water tank 21 is heated, it flows into the blanket 10 through the first connecting pipe 30. After flowing through the blanket 10, the water flows out of the blanket 10 from the water outlet 12 and flows back into the water tank 21 through the second connecting pipe 40. That is to say, the water tank 21, the blanket 10, the first connecting pipe 30 and the second connecting pipe 40 together form a closed loop, allowing water to flow back and forth between the water tank 21 and the blanket 10. In this way, hot water can be continuously provided to the blanket 10 for heat exchange.

[0052] When the water heating blanket is not needed, it can be switched from the heating mode to the drainage mode. In this mode, the first connecting pipe 30 can be removed from the water tank 21 and connected to the air outlet 221 of the air pump 22. Subsequently, the second connecting pipe 40 can also be removed from the water tank 21 and placed in a water basin.

[0053] Start the air pump 22. The gas transported by the air pump 22 enters the first connecting pipe 30 through the air outlet 221 and enters the blanket 10 through the first connecting pipe 30. The water in the blanket 10 flows towards the water outlet 12 under the push of the gas, flows into the second connecting pipe 40 through the water outlet 12, and finally flows into the water basin through the second connecting pipe 40.

[0054] It should be noted that when the air pump 22 operates for a period of time, the humidity sensor 50 provided at the air outlet 221 can detect the humidity inside the air outlet 221. When the humidity value detected by the sensor is less than the preset value, it means that the dryness inside the air outlet 221 is relatively high at this time. That is to say, the air pump 22 can pump more air into the first connecting pipe 30 to drain the water in the blanket 10.

[0055] In summary, the above water heating blanket realizes automatic drainage in the drainage state by setting a humidity sensor 50 at the air outlet 221 of the air pump 22, electrically connecting the humidity sensor 50 to the air pump 22, and detecting the humidity of the air outlet 221, improving the automatic drainage effect of the water heating blanket.

[0056] In some embodiments, in the drainage state, the air pump 22 continues to operate when the humidity sensor 50 detects that the humidity inside the air outlet 221 is greater than or equal to the preset value.

[0057] Exemplarily, in the drainage state, when the air pump 22 operates for a period of time (for example, 30 seconds), the air pump 22 pauses operation and the humidity sensor 50 starts to operate. During this process, the water in the blanket 10 is drained out under the action of the air pump 22. If the humidity sensor 50 detects that the internal humidity of the air outlet 221 is greater than or equal to the preset value, it proves that there is still a lot of water remaining inside the blanket 10 at this time, and the air pump 22 continues to operate, and the water inside the blanket 10 is drained out under the action of the air pump 22.

[0058] After the air outlet pump 22 runs for another 30 seconds, it pauses again, and the humidity sensor 50 continues to detect the internal humidity of the water outlet 12. This process repeats until the humidity value detected by the humidity sensor 50 is lower than the preset value, at which point the air outlet pump 22 stops running, indicating that the water in the blanket 10 has basically been drained.

[0059] The above settings improve the efficiency of the air outlet pump 22 in draining the residual water in the blanket 10 from the blanket 10, increase the dryness inside the blanket 10, and reduce the probability of scale formation inside the blanket 10.

[0060] In some embodiments, the humidity sensor 50 is detachably mounted inside the air outlet 221.

[0061] The humidity sensor 50 can be mounted on the air outlet 221 by means of bolts, snap connections, etc.

[0062] When the humidity sensor 50 is damaged, the damaged humidity sensor 50 is replaced with a new one and mounted on the air outlet 221. Compared with replacing the entire main unit 20, only replacing the damaged humidity sensor 50 reduces the maintenance cost of the water heating blanket.

[0063] In some embodiments, the water tank 21 is provided with a first socket and a second socket. One of the first socket and the second socket is provided with a water outlet end 211, and the other is provided with a water return end 212. When in the heating state, the water outlet end 211 is connected to a first connecting pipe 30, and the water return end 212 is connected to a second connecting pipe 40.

[0064] When in the heating state, by directly connecting one end of the first connecting pipe 30 to the first socket, the first connecting pipe 30 can be connected to the water tank 21. By directly connecting one end of the second connecting pipe 40 to the second socket, the second connecting pipe 40 can be connected to the water tank 21. The plug-in connection method simplifies the connection between each connecting pipe and the water tank 21, facilitating the installation and disassembly of the connecting pipes.

[0065] In some embodiments, the first socket and the second socket have the same structure.

[0066] When installing the first connecting pipe 30 and the second connecting pipe 40, since the structures of the first socket and the second socket are the same, there is no need to distinguish between the first connecting pipe 30 and the second connecting pipe 40. When in the heating state, directly connect one of the first connecting pipe 30 and the second connecting pipe 40 to the first socket, and the other to the second socket.

[0067] Such a setting not only reduces the probability of delaying the installation speed of the water heating blanket due to confusion between the first connecting pipe 30 and the second connecting pipe 40, but also reduces the processing difficulty of the water tank 21.

[0068] In some embodiments, when in the drainage state, the first connecting pipe 30 and the second connecting pipe 40 can be replaced with each other.

[0069] Assume that at the initial stage of drainage, one end of the first connecting pipe 30 is connected to the air outlet 221 of the air outlet pump 22, and the other end of the first connecting pipe 30 is connected to the water inlet 11 of the blanket 10. One end of the second connecting pipe 40 is connected to the water outlet 12 of the blanket 10, and the other end of the second connecting pipe 40 can be suspended above the water basin.

[0070] The water in the blanket 10 flows into the water basin through the second connecting pipe 40 under the action of the air outlet pump 22. Because the air outlet pump 22 injects a large amount of gas into the first connecting pipe 30, the first connecting pipe 30 can be air-dried. Exactly speaking, the gas injected by the air outlet pump 22 can air-dry the area it flows through.

[0071] After some water in the blanket 10 is drained, the air outlet pump 22 can be paused, and the first connecting pipe 30 and the second connecting pipe 40 are replaced with each other. That is, one end of the second connecting pipe 40 is connected to the air outlet 221 of the air outlet pump 22, and the other end of the second connecting pipe 40 is connected to the water inlet 11 of the blanket 10. One end of the first connecting pipe 30 is connected to the water outlet 12 of the blanket 10, and the other end of the first connecting pipe 30 can be suspended above the water basin.

[0072] Then, the air outlet pump 22 is started again, and the gas injected by the air outlet pump 22 flows through the second connecting pipe 40, the blanket 10 and the first connecting pipe 30 in sequence. In this way, the first connecting pipe 30, the blanket 10 and the second connecting pipe 40 can be air-dried for the second time, which can not only reduce the degree of water residue in the blanket 10, but also reduce the degree of residual water in each connecting pipe.

[0073] In some embodiments, the main machine 20 is further provided with a time detection component (not shown in the figure), and the time detection component is electrically connected to the humidity sensor 50; when in the drainage state, when the running time of the air outlet pump 22 reaches the threshold, the time detection component controls the humidity sensor 50 to run.

[0074] Exemplarily, assume that the threshold set by the time detection component is 30 seconds. When the water heating blanket is in the drainage state, when the time detection component detects that the air outlet pump 22 has run for 30 seconds, it sends a signal to the humidity sensor 50. At this time, the air outlet pump 22 pauses running, and the humidity sensor 50 starts to detect the humidity of the air outlet 221. When the detected humidity is less than the threshold, the air outlet pump 22 stops running, otherwise the air outlet pump 22 continues to run.

[0075] When the time detection component detects that the air outlet pump 22 continues to operate for 30 seconds, the time detection component sends a signal to the humidity sensor 50 again, and the air outlet pump 22 pauses operation again. This process repeats until the humidity detected by the humidity sensor 50 is less than the threshold value, and then the air outlet pump 22 and the time detection component stop operating.

[0076] In the above solution, by setting the time detection component to detect the operation time of the air outlet pump 22 and electrically connecting the time detection component to the humidity sensor 50, the humidity of the air outlet 221 is detected regularly, and the operation time of the air outlet pump 22 is controlled, reducing the probability of excessive operation of the air outlet pump 22. While reducing the degree of water residue in the blanket 10, the power consumption of the water heating blanket is reduced.

[0077] Please refer to Figure 3 , in some embodiments, the water heating blanket further includes a heating pipe 70, and the heating pipe 70 can be arranged at the air outlet 221 of the air outlet pump 22. For example, the heating pipe 70 is wound around the pipe wall of the air outlet pipe at the air outlet 221. When the air outlet pump 22 operates, the gas pumped out by it can be heated by the heating pipe 70 when passing through the air outlet 221, so as to inject hot gas into the blanket 10 and accelerate the drying speed of the pipes in the blanket 10.

[0078] Exemplarily, when the water heating blanket is in the drainage state, the air outlet pump 22 and the heating pipe 70 start to operate. The heating pipe 70 can heat the gas flowing in from the air outlet 221. The hot gas can push the liquid in the blanket 10 to flow towards the second connecting pipe 40 and dry the pipes inside the blanket 10, the first connecting pipe 30 and the second connecting pipe 40.

[0079] When the time detection component detects that the air outlet pump 22 operates for 30 seconds, the time detection component sends signals to the air outlet pump 22 and the heating pipe 70, and the air outlet pump 22 and the heating pipe 70 pause operation. Subsequently, the time detection component sends a signal to the humidity sensor 50, and the humidity sensor 50 starts to operate and detects the humidity of the air outlet 221.

[0080] When the humidity detected by the humidity sensor 50 is less than the threshold value, the air outlet pump 22 and the heating pipe 70 stop operating, otherwise the air outlet pump 22 and the heating pipe 70 continue to operate.

[0081] When the time detection component detects that the air outlet pump 22 continues to operate for 30 seconds, the time detection component sends a signal to the humidity sensor 50 again, and the air outlet pump 22 and the heating pipe 70 pause operation again. This process repeats until the humidity detected by the humidity sensor 50 is less than the threshold value, and then the air outlet pump 22, the heating pipe 70 and the time detection component stop operating.

[0082] It should be noted that, in some embodiments, the water heating blanket further includes a pressure sensor (not shown in the figure). The pressure sensor is disposed in the pipeline for liquid flow in the blanket 10 and is used to detect the air pressure in the pipeline. When the air pressure detected by the pressure sensor is less than a preset value, it means that the pipeline in the blanket 10 may be in a folded state or a blocked state. The pressure sensor will send a signal to the air outlet pump 22, and the air outlet pump 22 will stop operating. Moreover, an alarm electrically connected to the pressure sensor will also give an alarm to remind the user.

[0083] In some embodiments, the water heating blanket further includes a heating element 60. The heating element 60 is disposed at the bottom of the water tank 21 and is used to heat the water tank 21.

[0084] The heating element 60 can be in a disc shape and cover the bottom of the water tank 21.

[0085] In the initial stage when the water heating blanket is in the heating mode, the heating element 60 heats the outside of the water tank 21 to transfer the heat to the inside of the water tank 21, thereby heating the water inside the water tank 21. When the water in the water tank 21 is heated to a certain extent, it is then transmitted to the blanket 10 through the first connecting pipe 30. After the water in the blanket 10 undergoes heat exchange and returns to the water tank 21 through the second connecting pipe 40, it can be reheated.

[0086] With such a setting, the heating method of the water in the water tank 21 can be simplified, and the difficulty of obtaining the heating element 60 can be reduced.

[0087] In some embodiments, the main body 20 further includes a housing 23. The interior of the housing 23 is divided into two independent areas. One area is provided with the water tank 21, and the other area is provided with the air outlet pump 22.

[0088] Dividing the interior space of the housing 23 into two non-interfering areas reduces the probability that the water in the water tank 21 overflows into the area where the air outlet pump 22 is located and affects the operation of the air outlet pump 22.

[0089] In some embodiments, the housing 23 is provided with an air inlet 231. The air inlet 231 is communicated with the air outlet pump 22 and allows external gas to enter the air outlet pump 22.

[0090] When the air outlet pump 22 is operating, external air can enter the space where the air outlet pump 22 is located through the air inlet 231, and thus is sucked and compressed into high-pressure air by the air outlet pump 22, and then transmitted to the first connecting pipe 30 and the blanket 10.

[0091] The above setting can protect the air outlet pump 22 from being damaged by interference with external parts and reduce the probability of the air outlet pump 22 being damaged.

[0092] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0093] The above-described embodiments only express several implementation manners of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A water heating blanket, characterized in that, Comprising: A woolen blanket (10) including a water inlet (11) and a water outlet (12) that are interconnected; A main unit (20) including a water tank (21) and an air outlet pump (22), the air outlet pump (22) including an air outlet (221), and a humidity sensor (50) being provided at the air outlet (221); A first connecting pipe (30) and a second connecting pipe (40); The water heating blanket can be switched between a heating state and a drainage state. In the heating state, the first connecting pipe (30) connects the water tank (21) and the water inlet (11), and the second connecting pipe (40) connects the water outlet (12) and the water tank (21); In the drainage state, the first connecting pipe (30) connects the air outlet (221) and the water inlet (11), one end of the second connecting pipe (40) is connected to the water outlet (12), and the other end is connected to the outside; the air outlet pump (22) injects gas into the first connecting pipe (30) and stops working when the humidity sensor (50) detects that the humidity inside the air outlet (221) is less than a preset value.

2. The water heating blanket according to claim 1, wherein In the drainage state, the air outlet pump (22) also continues to operate when the humidity sensor (50) detects that the humidity inside the air outlet (221) is greater than or equal to the preset value.

3. The water heating blanket according to claim 1, characterized in that, The humidity sensor (50) is detachably installed inside the air outlet (221).

4. The water heating blanket according to claim 1, wherein The water tank (21) is provided with a first plug connector and a second plug connector. One of the first plug connector and the second plug connector is provided with a water outlet end (211), and the other is provided with a water return end (212). In the heating state, the water outlet end (211) is connected to the first connecting pipe (30), and the water return end (212) is connected to the second connecting pipe (40).

5. The water heating blanket according to claim 4, wherein The structures of the first plug connector and the second plug connector are the same.

6. The water heating blanket according to claim 1, wherein In the drainage state, the first connecting pipe (30) and the second connecting pipe (40) can be replaced with each other.

7. The water heating blanket according to claim 1, characterized in that, The main unit (20) is further provided with a time detection component, and the time detection component is electrically connected to the humidity sensor (50); In the drainage state, when the operation time of the air outlet pump (22) reaches a threshold value, the time detection component controls the humidity sensor (50) to operate.

8. The water heating blanket according to claim 1, characterized in that, The water heating blanket further includes a heating element (60), and the heating element (60) is provided at the bottom of the water tank (21) and is used to heat the water tank (21).

9. The water heating blanket according to claim 1, wherein The main unit (20) further includes a housing (23), and the interior of the housing (23) is divided into two independent areas. One area is provided with the water tank (21), and the other area is provided with the air outlet pump (22).

10. The water heating blanket according to claim 9, wherein, The housing (23) is provided with an air inlet (231), and the air inlet (231) is connected to the air outlet pump (22) and allows external gas to enter the air outlet pump (22).

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