Main machine of water heating blanket and water heating blanket

Abstract

The embodiment of the utility model provides a main machine of a water heating blanket and the water heating blanket, the main machine of the water heating blanket comprises a shell assembly, a water tank assembly and a driving pump, the water tank assembly is arranged in the shell assembly, the water tank assembly comprises a tank body and a tank cover, the tank body is provided with a water containing cavity, and the water containing cavity is used for containing liquid; the driving pump is located in the water containing cavity, and the box cover is connected to the box body to jointly fix the driving pump. The noise generated when the host of the water heating blanket runs is low, and then the use experience of a user can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of heating equipment, and in particular to a main unit of a water heating blanket and a water heating blanket. Background Art

[0002] A water-heated blanket is a bedding heating product that uses water as a heat transfer medium. The water-heated blanket mainly consists of a main unit and a blanket. A circulating water circuit is provided inside the blanket. The main unit includes a box, a water pump and a heating element. The heating element heats the water in the box, and the water pump drives the heated water to flow in the circulating water circuit, thereby transferring heat to the user's body, thereby improving the user's sleep comfort.

[0003] However, the water pump in the related art generates a lot of noise, which in turn affects the user's sleep quality. Utility Model Content

[0004] Based on this, an embodiment of the present application provides a main unit of a water-heating blanket and a water-heating blanket. The main unit of the water-heating blanket makes less noise during operation, thereby improving the user experience.

[0005] In a first aspect, an embodiment of the present application provides a main unit of a water heating blanket, the main unit of the water heating blanket comprising a housing assembly, a water tank assembly, and a drive pump, wherein the water tank assembly is disposed within the housing assembly, the water tank assembly comprising a box body and a box cover, the box body having a water holding cavity for holding liquid;

[0006] The driving pump is located in the water containing cavity, and the box cover is connected to the box body to jointly fix the driving pump.

[0007] The main unit of the water-heating blanket provided in the embodiment of the present application includes a shell assembly, a water tank assembly and a drive pump, the water tank assembly includes a box body and a box cover, and the box body includes a water-containing chamber. By providing a shell assembly for installing the water tank assembly, by providing a water-containing chamber for containing liquid, by providing a drive pump for driving the liquid to circulate, by providing the drive pump in the water-containing chamber, the noise of the drive pump is blocked from being transmitted outward with the help of liquid, thereby improving the silent effect of the main unit of the water-heating blanket, and by connecting the box cover and the box body to jointly fix the drive pump, the drive pump is allowed to operate stably in the water-containing chamber, thereby reducing the vibration and noise of the drive pump. Therefore, the main unit of the water-heating blanket provided in the embodiment of the present application makes less noise during operation, and the user experience is better.

[0008] In one possible implementation, the bottom of the water chamber has at least one first mounting portion, and the side of the box cover facing the box body has at least one second mounting portion, the first mounting portion has a first half mounting groove, and the second mounting portion has a second half mounting groove;

[0009] When the box cover is connected to the box body, the first half of the installation groove and the second half of the installation groove are combined to form the installation groove, and the driving pump is connected to the installation groove.

[0010] In this way, before the box cover is connected to the box body, the driving pump can be placed in the first half of the mounting groove of the first mounting part. After the box cover is connected to the box body, the second half of the mounting groove of the second mounting part can be spliced ​​with the first half of the mounting groove of the first mounting part to form a complete mounting groove, thereby fixing the driving pump in the mounting groove.

[0011] In a possible implementation, at least two second mounting portions are respectively provided at two ends of the driving pump, and the first mounting portion and the second mounting portion are provided correspondingly.

[0012] In this way, a first mounting portion and a second mounting portion are respectively provided at both ends of the driving pump, and then mounting grooves are formed at both ends of the driving pump, so that both ends of the driving pump can be fixed by the mounting grooves, thereby improving the installation reliability and operation stability of the driving pump.

[0013] In a possible implementation, the main unit of the water heating blanket provided in the embodiment of the present application further includes a heating element, and the heating element is configured to heat liquid.

[0014] In this way, the main unit of the water-heating blanket can realize the function of heating the liquid by setting a heating element, so that the main unit of the water-heating blanket can continuously provide heat to the blanket, thereby achieving a warming effect of the blanket.

[0015] In a possible implementation, the heating element is disposed between the box and the housing assembly, and the driving pump is configured to drive the liquid in the water containing chamber into the heating element.

[0016] In this way, setting the heating element outside the water chamber can prevent the heating element from continuing to occupy the space of the water chamber and reducing the capacity of the water chamber. Moreover, the heating element is located outside the water chamber, which can prevent the heating element from heating the liquid in the entire water chamber, thereby improving the heating efficiency of the heating element.

[0017] In a possible implementation, the driving pump includes a water inlet and a water outlet, the water inlet is connected to the water holding chamber, the box body has a drain, the water outlet is connected to the drain, and the drain is connected to the heating element.

[0018] In this way, the driving pump can suck the liquid in the accommodating chamber into the driving pump through the water inlet, and then provide driving force to the liquid through the driving pump. The liquid is then discharged through the water outlet and the drain outlet in sequence, and then enters the heating element. After that, the heating element can heat the liquid. The heated liquid is discharged into the circulation pipe under the action of the driving force provided by the driving pump and circulates, and transfers the heat to the user's body. The cooled liquid flows back to the water accommodating chamber under the action of the driving pump, and enters the heating element again for heating, so that the main unit of the water heating blanket and the blanket can together form a closed liquid circulation system.

[0019] In a possible implementation, the box body further has a water return port, which is connected to the water holding chamber, and the drain port and the water return port are both located on one side of the box body.

[0020] With this arrangement, the cooled liquid can flow back to the water holding chamber through the return water port, and enter the heating element again under the action of the driving pump for heating, thereby forming a closed loop. In addition, the drain port and the return water port can both be set on one side of the box, thereby facilitating processing and saving installation space.

[0021] In a possible implementation, the housing assembly includes a housing and a base, the base is connected to the bottom of the housing, and the heating element is located between the box and the base.

[0022] In this way, the space between the box body and the base can be used to install the heating element and other electrical components, so that the heating element is installed outside the water containing chamber, thereby increasing the capacity of the water containing chamber.

[0023] In a possible implementation, the housing assembly further includes a panel connected to a side of the housing facing away from the base.

[0024] In this way, the panel, the shell and the base can together form a complete shell assembly, and then the water tank assembly is installed in the shell assembly, so that the shell assembly has both the appearance and the noise blocking functions.

[0025] In a possible implementation, the main unit of the water heating blanket provided in the embodiment of the present application further includes a sound insulation component, which is disposed between the shell assembly and the box body, and covers at least a portion of the outer wall of the box body.

[0026] In this way, by setting up sound insulation on the outside of the box, the noise of the driving pump can be further blocked from being transmitted to the outside of the main unit of the water heating blanket, thereby effectively reducing the noise at the user end and improving the user experience of using the water heating blanket.

[0027] In a second aspect, an embodiment of the present application further provides a water-heating blanket, which includes a blanket and the main unit of the water-heating blanket provided in the first aspect above. The blanket includes a blanket body and a circulation pipe arranged in the blanket body, and the circulation pipe is connected to the main unit of the water-heating blanket.

[0028] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the main unit and water-heating blanket provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] Figure 1 A schematic structural diagram of the main unit of the water heating blanket provided in an embodiment of the present application;

[0031] Figure 2 An exploded structural diagram of the main unit of the water heating blanket provided in an embodiment of the present application;

[0032] Figure 3 A schematic diagram of the structure of the water tank assembly and the drive pump in the main unit of the water heating blanket provided in an embodiment of the present application;

[0033] Figure 4 This is an exploded structural diagram of the water tank assembly and drive pump in the main unit of the water heating blanket provided in an embodiment of the present application.

[0034] Description of Figure Numbers:

[0035] 100-housing assembly; 110-housing; 120-base; 130-panel;

[0036] 200 - water tank assembly; 210 - tank body; 211 - water storage chamber; 212 - first mounting portion; 213 - drain outlet; 214 - water return outlet; 220 - tank cover; 221 - second mounting portion;

[0037] 300-driving pump; 310-water inlet; 320-water outlet;

[0038] 400-Heating element.

[0039] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0042] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0043] The terms "first," "second," and "third" (if any) in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.

[0044] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or display that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or display.

[0045] A water-heated blanket is a bedding heating product that uses water as a heat transfer medium. The water-heated blanket mainly consists of a main unit and a blanket. A circulating water circuit is provided inside the blanket. The main unit includes a box, a water pump and a heating element. The heating element heats the water in the box, and the water pump drives the heated water to flow in the circulating water circuit, thereby transferring heat to the user's body, thereby improving the user's sleep comfort.

[0046] However, the water pump in the related art generates a lot of noise. This is because the water pump is installed on the outside of the box through a water pump bracket. The water pump pumps heated water into the circulating water path of the blanket, which generates a lot of noise during operation. The water pump may also resonate with the water pump bracket during operation, thereby affecting the user's sleep quality.

[0047] In view of the above problems, an embodiment of the present application provides a main unit and a water heating blanket of a water heating blanket. The main unit of the water heating blanket arranges a driving pump in a water containing chamber to eliminate part of the noise of the driving pump with the help of the liquid in the water containing chamber, and fixes the driving pump in the water containing chamber through a box body and a box cover to improve the stability of the driving pump during operation, thereby reducing the vibration and noise of the driving pump, thereby improving the silent effect of the main unit of the water heating blanket.

[0048] The main unit of the water heating blanket and the specific implementation methods of the water heating blanket provided in the embodiment of the present application are described in detail below with reference to the accompanying drawings.

[0049] Reference Figure 1 As shown, the water heating blanket provided in the embodiment of the present application includes a main unit of the water heating blanket and a blanket. The blanket includes a blanket body and a circulation pipe arranged in the blanket body, and the circulation pipe is connected to the main unit of the water heating blanket.

[0050] The blanket body can be made of soft fabric to provide a comfortable touch for the user, and the circulation pipe is arranged in a circuitous manner in the blanket body to evenly heat or cool the surface of the blanket body, thereby providing the desired warming or cooling effect.

[0051] After the main unit of the water heating blanket is connected to the circulation pipe, a closed liquid circulation system can be formed. The main unit of the water heating blanket can provide driving force for the liquid, and then drive the liquid to circulate in the circulation pipe, thereby continuously transferring heat.

[0052] Reference Figures 1 to 4 As shown, based on the above embodiments, the embodiments of the present application also provide a main unit of a water-heating blanket, which includes a shell assembly 100, a water tank assembly 200 and a drive pump 300. The water tank assembly 200 is arranged in the shell assembly 100. The water tank assembly 200 includes a box body 210 and a box cover 220. The box body 210 has a water holding chamber 211, which is used to hold liquid.

[0053] The driving pump 300 is located in the water containing chamber 211 , and the box cover 220 is connected to the box body 210 to fix the driving pump 300 together.

[0054] In this embodiment, the housing assembly 100 is used to mount the water tank assembly 200, which is then concealed within the housing assembly 100, thereby enhancing the aesthetic appearance of the water-heating blanket. The housing 210 defines a water chamber 211 for containing liquid, so that the water chamber 211 and the circulation pipeline are connected to form a closed liquid circulation system. The housing cover 220 is connected to the housing 210 to seal the water chamber 211. The drive pump 300 is used to provide power to the liquid, thereby driving the liquid to circulate, allowing the water-heating blanket to continuously provide heat to the blanket.

[0055] In order to reduce the noise of the drive pump 300, in this embodiment, the drive pump 300 can be arranged in the water chamber 211. Since the water chamber 211 is filled with a lot of liquid, the liquid has a sound insulation and noise reduction effect, and the water tank assembly 200 is arranged in the housing assembly 100, the noise of the drive pump 300 is difficult to transmit to the outside. When the drive pump 300 is running, the noise at the user end can be reduced. In addition, after the box cover 220 is connected to the box body 210, the box cover 220 and the box body 210 can jointly fix the drive pump 300 in the water chamber 211, thereby stabilizing the drive pump 300 in the water chamber 211, thereby reducing the vibration of the drive pump 300 and thus reducing the noise of the drive pump 300.

[0056] The main unit of the water-heating blanket provided in the embodiment of the present application includes a housing assembly 100, a water tank assembly 200 and a drive pump 300. The water tank assembly 200 includes a housing 210 and a housing cover 220. The housing 210 includes a water-containing chamber 211. By providing the housing assembly 100 for mounting the water tank assembly 200, providing the water-containing chamber 211 for containing liquid, and providing the drive pump 300 for driving the liquid to circulate, the drive pump 300 is disposed in the water-containing chamber 211 to block the noise of the drive pump 300 from being transmitted outward with the help of liquid, thereby improving the quietness of the main unit of the water-heating blanket. The housing cover 220 and the housing 210 are connected to jointly fix the drive pump 300, and then the drive pump 300 is allowed to operate stably in the water-containing chamber 211, thereby reducing the vibration and noise of the drive pump 300. As a result, the main unit of the water-heating blanket provided in the embodiment of the present application has low noise during operation, and the user experience is better.

[0057] Reference Figure 2 and Figure 3As shown, in one possible implementation, the water holding chamber 211 has at least one first mounting portion 212, and the side of the box cover 220 facing the box body 210 has at least one second mounting portion 221, the first mounting portion 212 has a first half mounting groove, and the second mounting portion 221 has a second half mounting groove. When the box cover 220 is connected to the box body 210, the first half mounting groove and the second half mounting groove are combined into a mounting groove, and the drive pump 300 is connected to the mounting groove.

[0058] In this way, before the box cover 220 is connected to the box body 210, the driving pump 300 can be placed in the first half of the mounting groove of the first mounting part 212. After the box cover 220 is connected to the box body 210, the second half of the mounting groove of the second mounting part 221 can be spliced ​​with the first half of the mounting groove of the first mounting part 212 to form a complete mounting groove, thereby fixing the driving pump 300 in the mounting groove.

[0059] Specifically, the box body 210 can be provided with a first threaded connection part, and the box cover 220 can be provided with a second threaded connection part. The first threaded connection part and the second threaded connection part can be threadedly connected by bolts, so that the box cover 220 and the box body 210 are reliably connected, so that the drive pump 300 can be reliably installed in the installation groove.

[0060] In some embodiments, at least two second mounting portions 221 are respectively disposed at two ends of the driving pump 300 , and the first mounting portion 212 and the second mounting portion 221 are disposed correspondingly.

[0061] Illustratively, two first mounting portions 212 are respectively arranged at both ends of the driving pump 300, and two second mounting portions 221 are respectively arranged at both ends of the driving pump 300, each first mounting portion 212 has a first half mounting groove, and each second mounting portion 221 has a second half mounting groove. In this way, the first mounting portion 212 and the second mounting portion 221 are respectively arranged at both ends of the driving pump 300, and then mounting grooves are formed at both ends of the driving pump 300, so that both ends of the driving pump 300 can be fixed by the mounting grooves, thereby improving the installation reliability and operation stability of the driving pump 300.

[0062] Reference Figure 2 As shown, in a possible implementation, the main unit of the water heating blanket provided in the embodiment of the present application further includes a heating element 400, and the heating element 400 is configured to heat liquid.

[0063] It is understandable that the heating element 400 can be set in the water chamber 211, and the heating element 400 can directly heat the liquid in the water chamber 211, and then drive the heated liquid into the circulation pipe of the blanket through the driving pump 300, and drive the cooled liquid in the circulation pipe of the blanket back to the water chamber 211 for heating, and repeat this cycle.

[0064] Alternatively, the heating element 400 may be disposed outside the water chamber 211, and the driving pump 300 may drive the liquid in the water chamber 211 to first enter the heating element 400 for heating, and then drive the heated liquid into the circulation pipe of the blanket, and drive the cooled liquid in the circulation pipe of the blanket back to the water chamber 211 and then enter the heating element 400 for heating, and repeat this cycle.

[0065] Both of the above methods can enable the heating element 400 to heat the liquid, thereby enabling the main unit of the water-heating blanket to continuously provide heat to the blanket, thereby achieving a warming effect for the blanket.

[0066] In some embodiments, the heating element 400 is disposed between the tank 210 and the housing assembly 100 , and the driving pump 300 is configured to drive the liquid in the water containing chamber 211 into the heating element 400 .

[0067] In this arrangement, the heating element 400 is located outside the water holding chamber 211. The advantage of this arrangement is that since the driving pump 300 is arranged in the water holding chamber 211, it has already occupied part of the space of the water holding chamber 211. By arranging the heating element 400 outside the water holding chamber 211, it can prevent the heating element 400 from continuing to occupy the space of the water holding chamber 211 and reducing the capacity of the water holding chamber 211. Moreover, since the heating element 400 is located outside the water holding chamber 211, it can prevent the heating element 400 from heating the liquid in the entire water holding chamber 211, thereby improving the heating efficiency of the heating element 400.

[0068] Reference Figures 2 to 4 As shown, in some embodiments, the driving pump 300 includes a water inlet 310 and a water outlet 320, the water inlet 310 is connected to the water holding chamber 211, the box body 210 has a drain 213, the water outlet 320 is connected to the drain 213, and the drain 213 is connected to the heating element 400.

[0069] In this way, the driving pump 300 can suck the liquid in the accommodating chamber into the driving pump 300 through the water inlet 310, and then provide power to the liquid through the driving pump 300. The liquid is then discharged through the water outlet 320 and the drain port 213 in turn, and then enters the heating element 400. After that, the heating element 400 can heat the liquid. The heated liquid is discharged into the circulation pipe under the driving force provided by the driving pump 300 and transfers the heat to the user's body. The cooled liquid flows back to the water accommodating chamber 211 under the action of the driving pump 300, and enters the heating element 400 again for heating. In this way, the main unit of the water heating blanket and the blanket can together form a closed liquid circulation system.

[0070] Reference Figure 2 and Figure 3As shown, in a possible implementation, the box body 210 further has a water return port 214 , which is connected to the water holding chamber 211 , and the drain port 213 and the water return port 214 are both located on one side of the box body 210 .

[0071] With such an arrangement, the cooled liquid can flow back to the water holding chamber 211 through the return water port 214, and enter the heating element 400 again for heating under the action of the driving pump 300, thereby forming a closed loop. In addition, the drain port 213 and the return water port 214 can both be arranged on the side of the box body 210 away from the box cover 220, thereby facilitating processing and saving installation space.

[0072] Reference Figure 1 and Figure 2 As shown, in some embodiments, the housing assembly 100 includes a housing 110 and a base 120 , the base 120 is connected to the bottom of the housing 110 , and the heating element 400 is located between the box 210 and the base 120 .

[0073] In this way, the space between the box body 210 and the base 120 can be used to install the heating element 400 and other electrical components, such as a control board and a power cord, so that the heating element 400 is installed outside the water chamber 211, thereby increasing the capacity of the water chamber 211.

[0074] Reference Figure 1 and Figure 2 As shown, in a possible implementation, the housing assembly 100 further includes a panel 130 , which is connected to a side of the housing 110 facing away from the base 120 .

[0075] In this way, the panel 130, the shell 110 and the base 120 can together form a complete shell assembly 100, and then the water tank assembly 200 is installed in the shell assembly 100, so that the shell assembly 100 has both the appearance and the noise blocking function.

[0076] In some embodiments, the main unit of the water heating blanket provided in the embodiment of the present application further includes a sound insulation component, which is disposed between the shell assembly 100 and the box body 210 , and covers at least a portion of the outer wall of the box body 210 .

[0077] In this way, by setting a sound insulation part on the outside of the box body 210, the noise of the driving pump 300 can be further blocked from being transmitted to the outside of the main unit of the water heating blanket, thereby effectively reducing the noise at the user end and improving the user experience of using the water heating blanket.

[0078] Exemplarily, the sound insulation piece may be made of sound-absorbing cotton.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A main unit of a water heating blanket, characterized in that: The invention comprises a housing assembly (100), a water tank assembly (200) and a driving pump (300), wherein the water tank assembly (200) is arranged in the housing assembly (100), the water tank assembly (200) comprises a box body (210) and a box cover (220), the box body (210) has a water containing cavity (211), and the water containing cavity (211) is used to contain liquid; The driving pump (300) is located in the water containing cavity (211), and the box cover (220) is connected to the box body (210) to jointly fix the driving pump (300).

2. The main unit of the water heating blanket according to claim 1, characterized in that: The bottom of the water-containing chamber (211) has at least one first mounting portion (212), and the side of the box cover (220) facing the box body (210) has at least one second mounting portion (221), the first mounting portion (212) has a first half mounting groove, and the second mounting portion (221) has a second half mounting groove; When the box cover (220) is connected to the box body (210), the first half installation groove and the second half installation groove are combined to form a installation groove, and the driving pump (300) is connected to the installation groove.

3. The main unit of the water heating blanket according to claim 2, characterized in that: At least two of the second mounting portions (221) are respectively arranged at two ends of the driving pump (300), and the first mounting portion (212) and the second mounting portion (221) are arranged correspondingly.

4. The main unit of the water heating blanket according to any one of claims 1 to 3, characterized in that: A heating element (400) is also included, and the heating element (400) is configured to heat the liquid.

5. The main unit of the water heating blanket according to claim 4, characterized in that: The heating element (400) is disposed between the box (210) and the housing assembly (100), and the driving pump (300) is configured to drive the liquid in the water containing chamber (211) into the heating element (400).

6. The main unit of the water heating blanket according to claim 5, characterized in that: The driving pump (300) comprises a water inlet (310) and a water outlet (320), the water inlet (310) being connected to the water containing chamber (211), the box (210) having a drain outlet (213), the water outlet (320) being connected to the drain outlet (213), and the drain outlet (213) being connected to the heating element (400).

7. The main unit of the water heating blanket according to claim 6, characterized in that: The box body (210) further has a water return port (214), the water return port (214) being connected to the water holding chamber (211), and the drain port (213) and the water return port (214) are both located on one side of the box body (210).

8. The main unit of the water heating blanket according to claim 5, characterized in that: The housing assembly (100) comprises a housing (110) and a base (120), wherein the base (120) is connected to the bottom of the housing (110), and the heating element (400) is located between the box (210) and the base (120).

9. The main unit of the water heating blanket according to claim 8, characterized in that: The housing assembly (100) further includes a panel (130), wherein the panel (130) is connected to a side of the housing (110) facing away from the base (120).

10. The main unit of the water heating blanket according to any one of claims 1 to 3, characterized in that: It also includes a sound insulation member, which is arranged between the shell assembly (100) and the box body (210), and covers at least a portion of the outer wall of the box body (210).

11. A water heating blanket, characterized in that: The invention comprises a blanket and a host of the water-heating blanket according to any one of claims 1 to 10, wherein the blanket comprises a blanket body and a circulation pipe arranged in the blanket body, and the circulation pipe is connected to the host of the water-heating blanket.

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