Liquid circulation system and sleep appliance

Abstract

The utility model belongs to the technical field of bedding articles, and discloses a liquid circulation system and a sleeping tool. The liquid circulation system comprises a bag body, a liquid storage box, a circulation assembly and a temperature adjusting assembly, wherein the bag body is used for reducing the temperature of the surrounding environment; the liquid storage box is provided with an inner cavity used for containing liquid. The circulation assembly comprises a liquid supply pipe and a liquid return pipe which are connected between the bag body and the liquid storage box, the liquid return pipe is used for circulating first liquid flowing out of the bag body, the liquid supply pipe is used for circulating second liquid flowing out of the inner cavity, and the cross sectional area of the inner cavity is larger than that of the liquid supply pipe and that of the liquid return pipe; the circulating assembly further comprises a driving part, and the driving part is arranged on the liquid return pipe and used for driving the first liquid to flow from the bag body to the inner cavity; the temperature adjusting assembly is arranged on the liquid storage box and can reduce the temperature of the first liquid in the inner cavity. According to the sleeping tool, the suitable body surface temperature of a user can be kept, meanwhile, noise generated in the using process can be reduced, and therefore a comfortable sleeping environment is provided for the user.

Description

Technical Field

[0001] The utility model relates to the technical field of bedding, in particular to a liquid circulation system and sleeping equipment. Background Art

[0002] During the hot summer months, people typically turn on air conditioning or electric fans while sleeping to lower the ambient temperature and create a good sleeping environment. However, the part of the human body that is in contact with the pillow and bedding cannot be exposed to the flowing cool air, so parts of the body still sweat and feel hot, which affects people's sleep to a certain extent. To address this problem, pillows and bedding with cooling sheets placed inside or with a cold water circulation system have emerged. These can effectively reduce the temperature of the contact surface with the human body, create a cool and comfortable sleeping atmosphere, and thus help people fall asleep quickly. However, the cooling systems of these bedding products usually generate noise when in operation. This noise is often caused by vibrations within the cooling system, which can have a significant impact on people's sleep. Therefore, there is an urgent need for a silent cooling bedding product to solve the above technical problems existing in the prior art. Utility Model Content

[0003] The purpose of the utility model is to provide a liquid circulation system and sleeping equipment, which can maintain a suitable body surface temperature and reduce noise during use, thereby creating a comfortable sleeping environment.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] The utility model provides a liquid circulation system, comprising:

[0006] a capsule, the capsule being used to reduce the temperature of the surrounding environment;

[0007] A liquid storage box, the liquid storage box having an inner cavity for accommodating liquid;

[0008] a circulation assembly, the circulation assembly comprising a liquid supply pipe and a liquid return pipe connected between the bladder and the liquid storage box, the liquid return pipe being used to circulate the first liquid flowing out of the bladder, and the liquid supply pipe being used to circulate the second liquid flowing out of the inner cavity, the cross-sectional area of ​​the inner cavity being larger than the cross-sectional areas of the liquid supply pipe and the liquid return pipe;

[0009] The circulation assembly further includes a driving member, which is disposed on the liquid return pipe and is used to drive the first liquid to flow from the capsule to the inner cavity;

[0010] A temperature regulating component is provided on the liquid storage box, and the temperature regulating component can regulate the temperature of the first liquid in the inner cavity.

[0011] Preferably, the temperature of the first liquid is greater than or less than the temperature of the second liquid.

[0012] Preferably, the temperature control component includes a semiconductor cooling and heating plate and a heat exchanger, the semiconductor cooling and heating plate having a first surface and a second surface arranged opposite to each other, one of the first surface and the second surface being arranged in contact with the liquid storage box, the first surface being able to absorb heat or release heat, and the second surface corresponding to the first surface being able to release heat or absorb heat, and the heat exchanger being arranged on the other surface of the semiconductor cooling and heating plate facing away from the liquid storage box.

[0013] Preferably, the temperature adjustment component further includes a fan, and the fan is arranged facing the heat exchanger.

[0014] Preferably, the liquid circulation system further includes a first temporary storage body provided on the liquid return pipe, wherein the first temporary storage body has a first temporary storage cavity, the first temporary storage cavity is communicated with the liquid return pipe, and the first temporary storage cavity is used to accommodate the first liquid.

[0015] Preferably, the liquid circulation system further comprises a second temporary storage body provided on the liquid supply pipe, the second temporary storage body having a second temporary storage cavity, the second temporary storage cavity being in communication with the liquid supply pipe, and the second temporary storage cavity being used to accommodate the second liquid.

[0016] Preferably, the liquid circulation system also includes a shell, which includes an upper shell and a lower shell, the liquid storage box and the temperature adjustment component are both arranged on the lower shell, the upper shell cover is arranged on the liquid storage box and the temperature adjustment component, and the upper shell is detachably connected to the lower shell.

[0017] Preferably, the driving member is covered with a sound-absorbing structure.

[0018] Preferably, the capsule has a liquid inlet channel, a liquid return channel and multiple connecting flow channels, the liquid inlet channel is connected to the liquid supply pipe, the liquid return channel is connected to the liquid return pipe, and the multiple connecting flow channels are evenly distributed between the liquid inlet channel and the liquid return channel.

[0019] The sleeping device includes the above-mentioned liquid circulation system, and also includes an outer cover and a core body. The side of the core body facing the human body is an attachment surface, and a matching groove for accommodating the capsule body is provided on the attachment surface. The capsule body is arranged in the matching groove, and the outer cover is arranged on the core body.

[0020] The beneficial effects of the present invention are:

[0021] The liquid circulation system provided by the utility model comprises a sac, a liquid storage box, and a liquid supply pipe and a liquid return pipe arranged therebetween. Since the liquid storage box is provided with a temperature regulating component, the temperature regulating component can regulate the temperature of the first liquid and the second liquid in the inner cavity of the liquid storage box according to the needs of the user. Therefore, the liquid storage box can change the first liquid flowing into the inner cavity through the liquid return pipe into the second liquid with a different temperature, and flow the second liquid into the sac through the liquid supply pipe to meet the different temperature requirements of the user. Since the liquid supply pipe and the liquid return pipe are connected between the sac and the liquid storage box, the liquid supply pipe is used to circulate the second liquid flowing out of the inner cavity, and the liquid return pipe is used to circulate the first liquid flowing out of the sac. At the same time, since a driving member is also provided on the liquid return pipe, the driving member can drive the first liquid to flow in the liquid return pipe. Therefore, under the drive of the driving member, the first liquid and the second liquid can flow in the return pipe and the liquid supply pipe respectively, so that the liquid forms a reciprocating circulation in the entire system, and the surrounding environment is efficiently and continuously temperature-regulated through the capsule; the return pipe and the liquid supply pipe are connected through the inner cavity of the liquid storage box. When the first liquid enters the inner cavity through the return pipe, the liquid pressure will be released due to the increase in cross-sectional area, thereby alleviating the noise generated by the impact of the liquid flow speed on the pipe wall too fast; at the same time, the liquid will be temporarily stored in the inner cavity to accommodate more liquid, so as to play the role of weight increase and pressure stabilization for the entire circulation component, prevent the circulation component from vibrating violently during operation, and thus reduce the vibration noise of the liquid circulation system.

[0022] The sleeping device provided by the present invention adopts the above-mentioned liquid circulation system. The second liquid in the bag can always keep the attached surface of the sleeping device at an appropriate temperature to maintain a comfortable body surface temperature for the user. At the same time, the sleeping device can reduce the noise generated during use to ensure the quietness of the environment, thereby providing the user with a comfortable sleeping environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a system diagram of a liquid circulation system provided by a specific embodiment of the utility model;

[0024] Figure 2 This is a structural exploded diagram of the liquid circulation system provided by a specific embodiment of the utility model;

[0025] Figure 3 It is a top view of the liquid circulation system provided by a specific embodiment of the utility model;

[0026] Figure 4 This is an exploded view of the driving member and the muffler structure provided in a specific embodiment of the present utility model;

[0027] Figure 5 This is a partial structural exploded view of the sleeping appliance provided by a specific embodiment of the utility model;

[0028] Figure 6 It is an exploded view of the sleeping appliance provided by a specific embodiment of the present utility model.

[0029] In the picture:

[0030] 100-jacket; 110-core sleeve; 120-removable and washable cover;

[0031] 200-core;

[0032] 1-capsule; 11-liquid inlet channel; 12-liquid return channel; 13-connecting flow channel;

[0033] 2-Liquid storage box;

[0034] 3-circulation assembly; 31-liquid supply pipe; 32-liquid return pipe; 33-driving member; 34-silencing structure; 341-first silencing layer; 342-first sleeve; 343-second silencing layer; 344-second sleeve; 345-end cover;

[0035] 4-temperature control component; 41-semiconductor cooling and heating plate; 42-heat exchanger; 43-fan;

[0036] 5- first temporary storage;

[0037] 6- second temporary storage body;

[0038] 7-housing; 71-upper housing; 72-lower housing;

[0039] 8-Control unit. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0041] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, terms such as "upper," "lower," "right," and "left" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0044] like Figures 1 to 3As shown, the utility model provides a liquid circulation system, which includes a sac 1, a liquid storage box 2, a circulation component 3 and a temperature control component 4. The liquid storage box 2 has an inner cavity for accommodating liquid; the circulation component 3 includes a liquid supply pipe 31 and a liquid return pipe 32 connected between the sac 1 and the liquid storage box 2, the liquid return pipe 32 is used to circulate the first liquid flowing out of the sac 1, and the liquid supply pipe 31 is used to circulate the second liquid flowing out of the inner cavity, and the cross-sectional area of ​​the inner cavity is larger than the cross-sectional areas of the liquid supply pipe 31 and the liquid return pipe 32; the circulation component 3 also includes a driving member 33, which is arranged on the liquid return pipe 32, and is used to drive the first liquid to flow from the sac 1 to the inner cavity; the temperature control component 4 is arranged on the liquid storage box 2, and is used to adjust the temperature of the second liquid in the inner cavity. In this embodiment, since the liquid storage box 2 is provided with a temperature regulating component 4, the temperature regulating component 4 can adjust the temperature of the second liquid in the inner cavity of the liquid storage box 2 according to the needs of the user, so the liquid storage box 2 can change the second liquid flowing into the inner cavity through the return liquid pipe 32 into the first liquid with a different temperature, and flow into the bladder through the liquid supply pipe 31 to meet the different temperature requirements of the user; since the bladder 1 and the liquid storage box 2 are connected with the liquid supply pipe 31 and the liquid return pipe 32, the liquid supply pipe 31 is used to circulate the second liquid flowing out of the inner cavity, and the liquid return pipe 32 is used to circulate the first liquid flowing out of the bladder 1, and since the liquid return pipe 32 is also provided with a driving member 33, the driving member 33 can drive the first liquid to flow in the liquid return pipe 32, so when the driving member 33 is driven Under the present invention, the first liquid and the second liquid can flow in the return pipe 32 and the supply pipe 31 respectively, so that the liquid forms a reciprocating circulation in the entire system, and the temperature of the surrounding environment is efficiently and continuously regulated through the capsule 1; the return pipe 32 and the supply pipe 31 are connected through the inner cavity of the liquid storage box 2. When the first liquid enters the inner cavity through the return pipe 32, the liquid pressure will be released due to the increase in cross-sectional area, thereby alleviating the noise caused by the impact of the liquid flow speed on the pipe wall being too fast; at the same time, the liquid will be temporarily stored in the inner cavity to accommodate more liquid, so that the entire circulation component 3 can be weighted and stabilized, thereby preventing the circulation component 3 from vibrating violently during operation, thereby reducing the vibration noise of the liquid circulation system.Specifically, the liquid flowing in the liquid circulation system is water or a mixture of ethylene glycol and water, and other liquids with large specific heat capacity and non-toxic and harmless can also be used; the driving member 33 is a water pump; the temperature control component 4 can absorb heat or release heat for the first liquid in the inner cavity, so that the first liquid can be cooled or heated and turned into a second liquid, thereby being able to cool or heat the user; the capsule 1 is a water bag provided with a liquid flow channel, and the water bag is made of latex or plastic. The second liquid flowing out of the inner cavity of the liquid storage box 2 flows into the capsule 1 through the liquid supply pipe 31, and reduces or increases the temperature of the object through the contact between the capsule 1 and the surrounding objects; the second liquid absorbs heat or releases heat to become the first liquid, and the first liquid flows out of the capsule 1 and flows into the liquid storage box 2 through the return pipe 32, and repeats this cycle, thereby realizing the temperature regulation function of the capsule 1.

[0045] Furthermore, the temperature of the first liquid is greater or less than that of the second liquid. In this embodiment, the capsule 1 is used to release or absorb heat externally, so the temperature of the second liquid after release or absorption is different from that of the first liquid, thereby creating a good ambient temperature externally.

[0046] Further, if Figure 2 and Figure 5 As shown, the temperature control component 4 includes a semiconductor cooling and heating plate 41 and a heat exchanger 42. The semiconductor cooling and heating plate 41 has a first surface and a second surface that are arranged opposite to each other. One of the first surface and the second surface is arranged in contact with the liquid storage box 2. The first surface can absorb heat or release heat. The second surface corresponding to the first surface can release heat or absorb heat. The heat exchanger 42 is arranged on the other side of the semiconductor cooling and heating plate 41 away from the liquid storage box 2. In this embodiment, the semiconductor heat exchanger 41 is a temperature regulating device commonly used in the field. The semiconductor heat exchanger 41 is externally connected to a power supply, and can cool or heat through the Peltier effect after being powered on; specifically, when the cooling mode of the semiconductor heat exchanger 41 is used, the temperature of the first surface of the semiconductor heat exchanger 41 will decrease and the temperature of the second surface will increase; when the polarity of the current passed into the semiconductor heat exchanger 41 is changed, the semiconductor heat exchanger 41 switches to the heating mode, at which time the temperature of the first surface will increase and the temperature of the second surface will decrease, so the user can switch the usage mode of the semiconductor heat exchanger 41 according to their own needs; the heat exchanger 42 is a fin-type heat exchanger commonly used in the field, which can accelerate the heat exchange between the semiconductor heat exchanger 41 and the external environment to ensure that the semiconductor heat exchanger 41 can continuously and efficiently achieve cooling or heating.

[0047] Specifically, if Figure 2 and Figure 5 As shown, the temperature control assembly 4 further includes a fan 43, which is disposed directly opposite the heat exchanger 42. In this embodiment, the fan 32 can accelerate the air flow around the heat exchanger 42, thereby promoting the heat dissipation rate of the semiconductor cooling plate 41, thereby improving the cooling effect of the semiconductor cooling plate 41.

[0048] Further, if Figure 1 and Figure 5 As shown, the liquid circulation system also includes a first temporary storage body 5 provided on the liquid return pipe 32. The first temporary storage body 5 has a first temporary storage cavity, which is connected to the liquid return pipe 32 and is used to accommodate the first liquid. In this embodiment, the first temporary storage body 5 is provided on the liquid return pipe 32. The first temporary storage body 5 is a hollow tubular structure with an inner diameter larger than that of the liquid return pipe 32. The first temporary storage cavity can temporarily store the first liquid flowing in the liquid return pipe 32. Specifically, the driving member 33 is a water pump. The driving member 33 can pressurize the first liquid in the liquid return pipe 32 so that the first liquid can flow smoothly from the capsule 1 to the liquid storage box 2, thereby promoting the normal circulation of the liquid in the entire pipeline. The driving member 33 is provided on the liquid return pipe 32. When the driving member 33 is driven, the liquid return pipe 32 is pressurized. When the moving member 33 is working to transport the first liquid in the return liquid pipe 32, the first liquid temporarily stored in the first temporary storage chamber can increase the weight of the local area of ​​the return liquid pipe 32, thereby buffering and suppressing the vibration generated by the operation of the driving member 33, and maintaining the stability of the return liquid pipe 32 with its own weight; at the same time, the inner diameter of the first temporary storage chamber is larger than the inner diameter of the return liquid pipe 32, so the first liquid in the return liquid pipe 32 will release pressure when entering the first temporary storage chamber, thereby alleviating the noise generated by the impact of the liquid pressure on the pipe wall.

[0049] Specifically, if Figure 1 and Figure 5 As shown, the liquid circulation system also includes a second temporary storage body 6 disposed on the liquid supply pipe 31. The second temporary storage body 6 has a second temporary storage cavity, which is connected to the liquid supply pipe 31 and is used to accommodate the second liquid. In this embodiment, the second temporary storage body 6 is disposed on the liquid supply pipe 31. The second temporary storage body 6 is a hollow tubular structure with an inner diameter larger than the inner diameter of the liquid supply pipe 31. The second temporary storage cavity can temporarily store the second liquid flowing in the liquid supply pipe 31. Specifically, the second liquid temporarily stored in the second temporary storage cavity can increase the weight of the local area of ​​the liquid supply pipe 31, thereby cooperating with the first temporary storage body 5 to further buffer and suppress the vibration of the entire circulation component 3. At the same time, the inner diameter of the second temporary storage cavity is larger than the inner diameter of the liquid supply pipe 31. Therefore, when the second liquid in the liquid supply pipe 31 enters the second temporary storage cavity, the pressure is released to alleviate the noise generated by the impact of the liquid pressure on the pipe wall.

[0050] Specifically, if Figure 3 and Figure 5As shown, the liquid circulation system also includes a housing 7, which includes an upper shell 71 and a lower shell 72. The liquid storage box 2 and the temperature control assembly 4 are both mounted on the lower shell 72. The upper shell 71 covers the liquid storage box 2 and the temperature control assembly 4, and the upper shell 71 and the lower shell 72 are detachably connected. In this embodiment, the housing 7 protects and silences the liquid storage box 2 and the temperature control assembly 4 placed inside. Specifically, the liquid storage box 2, the temperature control assembly 4, the driver 33, the first temporary storage body 5, and the second temporary storage body 6 are all mounted on the lower shell 72, and the upper shell 71 and the lower shell 72 are bolted together. The lower shell 72 is provided with a bracket with silicone, and the driver 33 is fixed to the bracket. The silicone on the bracket can isolate the driver 33 from vibration. The upper shell 71 has through-holes for the liquid supply pipe 31 and the liquid return pipe 32 to pass through. The liquid supply pipe 31 and the liquid return pipe 32 pass through the through-holes and connect to the capsule 1.

[0051] Further, if Figure 2 and Figure 4 As shown, the driving member 33 is covered with a silencer structure 34. In this embodiment, Figure 2 The upper shell 71 is hidden to facilitate viewing of the internal structure of the outer shell 7. The driving member 33 is a water pump, and the driving member 33 is coated with a sound-absorbing structure 34 to reduce the noise generated by the driving member 33 during operation. Specifically, the sound-absorbing structure 34 includes a first sound-absorbing layer 341, a first sleeve 342, a second sound-absorbing layer 343 and a second sleeve 344, which are wrapped in sequence from the inside to the outside. The first sound-absorbing layer 341 and the second sound-absorbing layer 343 are both made of sponge, and the first sleeve 342 and the second sleeve 344 are both made of metal. The first sound-absorbing layer 341 is first wrapped around the driving member 33 and then installed in the first sleeve 342. The second sound-absorbing layer 343 is then wrapped around the outside of the first sleeve 342, and then inserted into the second sleeve 344. Finally, end covers 345 are installed at both ends of the second sleeve 344 to seal.

[0052] Further, if Figure 2 and Figure 3 As shown, the bladder 1 has a liquid inlet channel 11, a liquid return channel 12, and multiple connecting channels 13. The liquid inlet channel 11 is connected to the liquid supply pipe 31, and the liquid return channel 12 is connected to the liquid return pipe 32. The multiple connecting channels 13 are evenly distributed between the liquid inlet channel 11 and the liquid return channel 12. In this embodiment, the bladder 1 is a water bag made of latex or plastic. The bladder 1 is evenly distributed with multiple square punchings, and connecting channels 13 are located between adjacent square punchings. The second liquid flows through the liquid inlet channel 11, through the multiple connecting channels 13, and finally out of the bladder 1 through the liquid return channel 12. The even distribution of the connecting channels 13 on the bladder 1 can prevent uneven temperature in the bladder 1, thereby providing a more comfortable experience for the user.

[0053] The present invention also provides a sleeping device comprising the aforementioned liquid system, an outer cover 100, and a core 200. The side of the core 200 facing the human body is an attachment surface, the bladder 1 is disposed on the attachment surface, and the outer cover 100 is disposed on the core 200. In this embodiment, the bladder 1 is disposed on the attachment surface, which can effectively cool or warm the body surface, thereby creating a comfortable sleeping and resting environment for the user. Specifically, the outer shell 100 includes a core sleeve 110 and a removable and washable cover 120. The core sleeve 110 is sleeved over the core body 200 and closed with a zipper, thereby enclosing the bladder 1. The removable and washable cover 120 is sleeved over the core sleeve 110. It is understood that both the core sleeve 110 and the core body 200 are provided with through holes for the liquid supply pipe 31 and the liquid return pipe 32 to pass through. The outer shell 7 is placed outside the outer shell 100. The liquid circulation system also includes a control unit 8, which is placed in the outer shell 7 and electrically connected to the driver 33 and the semiconductor cooling and heating plate 41. The control unit 8 is a circuit board commonly used in the art. The outer shell 7 of the liquid circulation system is provided with a control button, which is electrically connected to the control unit 8 and can control the start and stop of the driver 33 and the temperature of the semiconductor cooling and heating plate 41. Specifically, the sleeping device can be a pillow, or other sleeping supplies such as a quilt or mattress.

[0054] Furthermore, the attachment surface is provided with a matching groove for accommodating the bladder 1. In this embodiment, the bladder 1 is arranged in the matching groove to ensure that the surface of the sleeping device is flat and has no protrusions, thereby improving the comfort of use.

[0055] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A liquid circulation system, characterized in that: include: cyst (1); A liquid storage box (2), the liquid storage box (2) having an inner cavity, the inner cavity being used to accommodate liquid; A circulation component (3), the circulation component (3) comprising a liquid supply pipe (31) and a liquid return pipe (32) connected between the sac (1) and the liquid storage box (2), the liquid return pipe (32) being used for circulating a first liquid flowing out of the sac (1), and the liquid supply pipe (31) being used for circulating a second liquid flowing out of the inner cavity, the cross-sectional area of ​​the inner cavity being larger than the cross-sectional areas of the liquid supply pipe (31) and the liquid return pipe (32); The circulation assembly (3) further includes a driving member (33), wherein the driving member (33) is arranged on the liquid return pipe (32), and the driving member (33) is used to drive the first liquid to flow from the capsule (1) to the inner cavity; A temperature regulating component (4), the temperature regulating component (4) being arranged on the liquid storage box (2), and the temperature regulating component (4) being used to regulate the temperature of the first liquid in the inner cavity.

2. The liquid circulation system according to claim 1, characterized in that: The temperature of the first liquid is greater than or less than the temperature of the second liquid.

3. The liquid circulation system according to claim 1, characterized in that: The temperature control component (4) comprises a semiconductor cooling plate (41) and a heat exchanger (42). The semiconductor cooling plate (41) has a first surface and a second surface arranged opposite to each other. One of the first surface and the second surface is arranged in contact with the liquid storage box (2). The first surface can absorb heat or release heat. The second surface corresponding to the first surface can release heat or absorb heat. The heat exchanger (42) is arranged on the other surface of the semiconductor cooling plate (41) away from the liquid storage box (2).

4. The liquid circulation system according to claim 3, characterized in that: The temperature adjustment component (4) further includes a fan (43), and the fan (43) is arranged facing the heat exchanger (42).

5. The liquid circulation system according to claim 1, characterized in that: The liquid circulation system further comprises a first temporary storage body (5) arranged on the liquid return pipe (32), wherein the first temporary storage body (5) has a first temporary storage cavity, the first temporary storage cavity is communicated with the liquid return pipe (32), and the first temporary storage cavity is used to accommodate the first liquid.

6. The liquid circulation system according to claim 5, characterized in that: The liquid circulation system further comprises a second temporary storage body (6) arranged on the liquid supply pipe (31), wherein the second temporary storage body (6) has a second temporary storage cavity, the second temporary storage cavity is communicated with the liquid supply pipe (31), and the second temporary storage cavity is used to accommodate the second liquid.

7. The liquid circulation system according to claim 1, characterized in that: The liquid circulation system further comprises a housing (7), the housing (7) comprising an upper shell (71) and a lower shell (72), the liquid storage box (2) and the temperature adjustment component (4) are both arranged on the lower shell (72), the upper shell (71) covers the liquid storage box (2) and the temperature adjustment component (4), and the upper shell (71) and the lower shell (72) are detachably connected.

8. The liquid circulation system according to claim 1, characterized in that: The driving member (33) is covered with a sound-absorbing structure (34).

9. The liquid circulation system according to any one of claims 1 to 8, characterized in that: The capsule (1) comprises a liquid inlet channel (11), a liquid return channel (12), and a plurality of communication channels (13); the liquid inlet channel (11) is in communication with the liquid supply pipe (31); the liquid return channel (12) is in communication with the liquid return pipe (32); and the plurality of communication channels (13) are evenly distributed between the liquid inlet channel (11) and the liquid return channel (12).

10. A sleeping appliance, characterized in that: The invention comprises a liquid circulation system according to any one of claims 1 to 9, further comprising an outer sleeve (100) and a core body (200), wherein the side of the core body (200) facing the human body is an attachment surface, and a matching groove for accommodating the capsule body (1) is provided on the attachment surface, the capsule body (1) is provided in the matching groove, and the outer sleeve (100) is sleeved on the core body (200).

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