Temperature control system for an item of furniture

Abstract

A temperature control system of a furniture article includes a furniture article body, a first liquid reservoir, an accumulator, a temperature control component, a first pump body and a main controller. The accumulator is filled with an energy storage medium; the temperature control component is attached to the accumulator, and the temperature control component is configured to work to regulate the temperature of the energy storage medium; the main controller is electrically connected with the temperature control component and the first pump body; the furniture article body, the first liquid reservoir and the first pump body are connected through a first pipeline to form a first circulation path, and at least part of the first pipeline is arranged in the accumulator and is in contact with the energy storage medium. The temperature control system of the furniture article of the present application is provided with an accumulator and operates in different modes, in a first mode, the energy storage medium is stored, in a second mode, the liquid is pumped to the furniture article body after heat exchange with the energy storage medium through the pipeline, the direct mixing of the circulating liquid and the energy storage medium is effectively isolated, the temperature is smoothly transitioned, the temperature is avoided to be suddenly changed, and the user comfort is improved.

Description

Technical Field

[0001] This application relates to the field of temperature control system technology, specifically to a temperature control system for furniture. Background Technology

[0002] As people's living standards continue to improve, furniture and items with temperature control functions, such as smart beds, temperature-controlled sofas, and temperature-controlled office chairs, are gradually gaining market attention. These furniture and items can effectively improve the quality of people's activities on them, such as improving sleep comfort or sitting posture.

[0003] In related technologies, the water circulation temperature control system for cold / heat storage furniture adopts a structural design where the water tank and circulation loop are directly connected. This means the liquid in the water tank directly participates in the furniture's circulation path, and the liquid in the tank and the liquid in the circulation loop are directly connected and mixed. When the low-temperature liquid in the cold storage tank directly enters the furniture's circulation system, the surface temperature of the furniture changes drastically and instantly. Users may suddenly experience extreme low or high temperatures, causing significant discomfort such as skin tingling or burning sensations, severely impacting the user experience. Summary of the Invention

[0004] The purpose of this application is to provide a temperature control system for furniture items to solve the problems of sudden temperature changes and poor user comfort.

[0005] To achieve the objectives of this application, the following technical solution is provided: In a first aspect, this application provides a temperature control system for furniture, comprising: The body of the furniture item; First liquid reservoir; An energy storage device, wherein the energy storage device is filled with an energy storage medium; A temperature control component is attached to the energy storage device and is configured to regulate the temperature of the energy storage medium during operation. A first pump body, the first pump body being used to drive the liquid circulation flow; The main controller is electrically connected to the temperature control component and the first pump body; The furniture body, the first liquid reservoir, and the first pump body are connected by a first pipeline to form a first circulation path, and at least a portion of the first pipeline is located inside the accumulator and in contact with the energy storage medium. The temperature control system of the furniture includes a first mode and a second mode; In the first mode, the main controller controls the temperature control component to operate so that it stores energy in the energy storage medium in the accumulator; In the second mode, the main controller controls the first pump to operate, so that the liquid in the first reservoir flows through the first pipeline and exchanges heat with the energy storage medium before being pumped into the furniture body.

[0006] In one embodiment, the first pipeline includes a first pipe, a second pipe, and a third pipe. The two ends of the first pipe are respectively connected to the outlet of the first liquid reservoir and the inlet of the first pump body. At least a portion of the first pipe is disposed inside the accumulator and is in contact with the energy storage medium. The two ends of the second pipe are respectively connected to the liquid outlet of the first pump body and the liquid inlet of the furniture body, and the two ends of the third pipe are respectively connected to the liquid outlet of the furniture body and the liquid inlet of the first reservoir.

[0007] In one embodiment, the first pipeline includes a first pipe, a second pipe, and a third pipe. The two ends of the first pipe are respectively connected to the outlet of the first liquid storage device and the inlet of the furniture body. At least a portion of the first pipe is disposed inside the energy storage device and is in contact with the energy storage medium. The two ends of the second pipe are respectively connected to the liquid outlet of the furniture body and the liquid inlet of the first pump body, and the two ends of the third pipe are respectively connected to the liquid outlet of the first pump body and the liquid inlet of the first reservoir.

[0008] In one embodiment, the first pipe located within the accumulator is arranged in a serpentine pattern.

[0009] In one embodiment, the outer wall of the energy storage device is covered with an insulation layer.

[0010] In one embodiment, the energy storage medium is PCM or an aqueous solution of ethylene glycol.

[0011] In one embodiment, the temperature control component includes a thermoelectric cooler and a heat sink. The thermoelectric cooler is electrically connected to the main controller. One side of the thermoelectric cooler is attached to the outer wall of the energy storage device, and the heat sink is connected to the other side of the thermoelectric cooler. A fan is provided on the heat sink.

[0012] In one embodiment, a second reservoir is further included, which is connected to the first reservoir and is used to replenish the first reservoir with liquid.

[0013] In one embodiment, a second pump body electrically connected to the main control is also included. The furniture body includes a first part and a second part. The first part, the first liquid reservoir, and the first pump body are connected through a first pipeline to form a first circulation path. The second part, the first reservoir and the second pump body are connected by a second pipeline to form a second circulation path, at least a portion of the second pipeline is located inside the accumulator and is in contact with the energy storage medium; In the second mode, the main controller controls the first pump to operate so that the liquid in the first reservoir flows through the first pipeline and exchanges heat with the energy storage medium before being pumped to the first part, and / or controls the second pump to operate so that the liquid in the first reservoir flows through the second pipeline and exchanges heat with the energy storage medium before being pumped to the second part.

[0014] In one embodiment, the system further includes a valve group electrically connected to the main controller. The furniture body includes a first part and a second part, and the first part, the first liquid reservoir, and the first pump body are connected through a first pipeline to form a first circulation path. The second part, the first reservoir and the first pump body are connected by a third pipeline to form a third circulation path, at least a portion of which is located inside the accumulator and in contact with the energy storage medium; The valve assembly is connected to the first pipeline and the third pipeline; In the second mode, the main controller controls the first pump to operate so that the liquid in the first reservoir flows through the first pipeline and exchanges heat with the energy storage medium before being pumped to the first part, and / or so that the liquid in the first reservoir flows through the third pipeline and exchanges heat with the energy storage medium before being pumped to the second part.

[0015] Compared with the prior art, this application has at least the following beneficial effects: 1. In this application, the temperature control system for furniture items realizes a time-sharing working mode of "energy storage-energy release" through the first mode and the second mode, which greatly reduces the overall energy consumption of the system. The system can start the first mode to complete energy storage during the off-peak electricity price period at night. During the peak period when users need to use the furniture temperature control function, the second mode is started to release the stored cold or heat through circulating liquid. The temperature control components do not need to run at high power continuously during the peak period of user use. Compared with the traditional direct heating and direct cooling furniture temperature control solution, the overall operating energy consumption is reduced. 2. In this application, the temperature control system for furniture items is equipped with an energy storage device and operates in multiple modes. In the first mode, the main controller controls the temperature control component to store energy in the energy storage medium. In the second mode, the main controller controls the pump to drive the liquid through the pipeline to exchange heat with the energy storage medium before pumping it to the furniture item body. This effectively isolates the direct mixing of the circulating liquid and the energy storage medium, achieving a smooth temperature transition. It has the advantages of using the energy storage medium to achieve temperature buffering, avoiding sudden temperature changes, and improving user comfort and temperature control stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the temperature control system for furniture articles according to Embodiment 1 of this application; Figure 2 This is a schematic diagram of the temperature control system for furniture articles according to Embodiment 2 of this application; Figure 3 This is a schematic diagram of the temperature control system for furniture articles according to Embodiment 3 of this application; Figure 4 This is a schematic diagram of the temperature control system for furniture articles according to Embodiment 4 of this application.

[0018] Explanation of reference numerals in the attached figures: 100. Furniture body; 110. First part; 120. Second part; 210. First liquid reservoir; 220. Second liquid reservoir; 300. Energy accumulator; 400. Temperature control component; 410. Semiconductor cooling chip; 420. Heat sink; 430. Fan; 440. Heat pipe; 510. First pump body; 520. Second pump body; 610. First pipeline; 611. First conduit; 612. Second conduit; 613. Third conduit; 620. Second pipeline; 630. Third conduit; 700. Valve assembly. Detailed Implementation

[0019] The following are specific embodiments of this application, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of this application. However, this application is not limited to these embodiments.

[0020] refer to Figure 1 This application provides a temperature control system for furniture, including a furniture body 100, a first liquid reservoir 210, an accumulator 300, a temperature control component 400, a first pump body 510, and a main controller (not shown).

[0021] The furniture body 100 is the main part of the furniture that requires temperature control, such as the mattress of a smart bed, the fitted sheet of a smart bed, the cushion of a temperature-controlled sofa, or the seat of a temperature-controlled office chair. The furniture body 100 has a liquid circulation channel or cavity inside to achieve temperature regulation of the furniture surface.

[0022] The first liquid reservoir 210 is capable of storing liquids for temperature regulation, such as water or other heat-conducting fluids. The first liquid reservoir 210 has an inlet and an outlet to allow the liquid to flow in and out. The inlet of the first liquid reservoir 210 is connected to the outlet of the furniture body 100, forming a liquid return channel and serving as the start and end point of the circulation path.

[0023] The accumulator 300 is a container filled with an energy storage medium to store heat or cold, thereby indirectly regulating the temperature of the circulating liquid. The energy storage medium refers to the substance filled in the accumulator 300, which has a high specific heat capacity or latent heat of phase change and can store or release energy under the action of the temperature control component 400. Examples include water, ice, phase change materials, or aqueous solutions of ethylene glycol.

[0024] A temperature control component 400 is attached to the accumulator 300. The temperature control component 400 is configured to regulate the temperature of the energy storage medium during operation, thereby changing the temperature of the energy storage medium in the accumulator 300. The temperature control component 400 can be implemented using various technologies, such as a cooling chip, a heating rod, a heat pump, or a compressor refrigeration unit.

[0025] The first pump body 510 is used to provide power to drive the liquid to circulate throughout the temperature control system. The first pump body 510 can be a centrifugal pump, which generates a pressure difference through impeller rotation to drive the liquid flow; or it can be a positive displacement pump, which draws in and discharges liquid by changing the volume of the working chamber.

[0026] The main controller is the core control unit of the entire temperature control system. It controls the operation of the temperature control component 400 and the first pump body 510 through electrical connection, and switches the system's operating mode according to a preset program or user instructions. For example, the main controller can be a microcontroller (MCU), a single-chip microcomputer, or an embedded system, which integrates a processing unit and a storage unit and can run preset control algorithms.

[0027] The furniture body 100, the first liquid reservoir 210, and the first pump body 510 are connected by a first pipe 610 to form a first circulation path. At least a portion of the first pipe 610 is located inside the accumulator 300 and is in contact with the energy storage medium. The first pipe 610 is a piping system connecting the furniture body 100, the first liquid reservoir 210, and the first pump body 510, and a portion of it is located inside the accumulator 300 to facilitate heat exchange between the circulating liquid and the energy storage medium.

[0028] It should be noted that the term "connection" in this article refers to the liquid circulation connection between two components through a pipeline. Other components or assemblies, such as valves, pumps, temperature control components 400, sensors, etc., can be added to the pipeline between the two components. As long as the liquid can circulate between the two, they can be regarded as connected.

[0029] The temperature control system for furniture includes a first mode and a second mode. In the first mode, the main controller controls the temperature control component 400 to work and the first pump 510 to not work, so that it stores energy in the energy storage medium in the accumulator 300. In the second mode, the main controller controls the first pump 510 to work, so that the liquid in the first liquid reservoir 210 flows through the first pipeline 610 and exchanges heat with the energy storage medium before being pumped into the furniture body 100.

[0030] The first mode refers to the working state of the temperature control system when storing energy. In this mode, the temperature control component 400 adjusts the temperature of the energy storage medium to reach the preset energy storage temperature. The second mode refers to the working state of the temperature control system when releasing energy. In this mode, the first pump 510 drives the liquid circulation, so that the liquid exchanges heat with the energy storage medium and then delivers the temperature-adjusted liquid to the furniture body 100.

[0031] The temperature control system for furniture in this application achieves pre-temperature regulation and energy storage of the energy storage medium by setting up an energy accumulator 300 and a temperature control component 400. When it is necessary to adjust the temperature of the furniture body 100, the circulating liquid and the energy storage medium exchange heat indirectly, avoiding the sudden temperature changes caused by the direct participation of the liquid in circulation in traditional systems. In the prior art, setting the temperature control component directly to control the temperature of the energy storage tank and the direct participation of the liquid in the energy storage tank in circulation will cause sudden temperature changes of the liquid flowing into the furniture body 100, resulting in a poor user experience. Therefore, the temperature control system provided by this solution makes the surface temperature change of the furniture body 100 more gradual and stable, significantly improving the user's comfort when using smart beds, temperature-controlled sofas, and other furniture, and effectively improving the user experience.

[0032] Meanwhile, the system achieves a time-sharing operation mode of "energy storage and release" through the first and second modes, which significantly reduces the overall energy consumption of the system. The system can start the first mode to complete energy storage during off-peak electricity price periods at night. During peak periods when users need to use the furniture temperature control function, the second mode is activated to release the stored cold or heat through circulating liquid. The temperature control component 400 does not need to operate at high power continuously during peak user periods. Compared with traditional direct heating and cooling furniture temperature control solutions, this reduces the overall operating energy consumption.

[0033] For example, during the nighttime sleep period, since the energy storage unit 300 has pre-stored sufficient cooling (or heating), the temperature control component 400 can adopt an intermittent low-power operation strategy to significantly reduce the operating noise of the cooling fan while ensuring temperature stability, thus avoiding disturbing the user's rest due to equipment operating noise.

[0034] Optionally, the energy storage medium is a phase change material (PCM). A PCM is a substance that absorbs or releases a large amount of latent heat through a phase change (such as solid-liquid or liquid-solid) at a specific temperature. When the temperature control component 400 operates to regulate the temperature of the energy storage medium, if the temperature reaches the phase change point of the PCM, the PCM will undergo a phase change and absorb or release a large amount of latent heat, while its own temperature remains relatively stable. This characteristic enables the PCM to provide efficient and stable heat storage and release. Common PCMs include paraffin wax, fatty acids, and hydrated salts, and their phase change temperatures can be selected according to the specific temperature control requirements of the furniture. Inside the accumulator 300, the PCM can exist in microencapsulated form or be directly filled to ensure sufficient contact with the first pipe 610 for heat exchange.

[0035] On the other hand, the energy storage medium can also be an aqueous solution of ethylene glycol, primarily utilizing the sensible heat of the ethylene glycol solution for energy storage. The advantage of an aqueous solution of ethylene glycol lies in its low freezing point, allowing it to remain liquid below 0°C, thereby extending the operating temperature range of the temperature control system. Simultaneously, the aqueous solution of ethylene glycol possesses good fluidity and heat transfer properties, contributing to improved heat exchange efficiency. The concentration of the aqueous solution of ethylene glycol needs to be precisely proportioned according to the required minimum operating temperature and heat capacity. Within the accumulator 300, it acts as a liquid medium, transferring heat through direct contact with the first conduit 610.

[0036] When the energy storage medium is PCM, its high latent heat storage characteristics allow the accumulator 300 to store more heat in a smaller volume and provide a constant temperature output during the phase change process, thereby ensuring the temperature stability of the furniture body 100 and extending the duration of the temperature control effect. When the energy storage medium is an aqueous ethylene glycol solution, its low freezing point characteristics allow the system to effectively control the temperature over a wider temperature range (including below zero degrees Celsius), improving the system's environmental adaptability. Regardless of whether PCM or an aqueous ethylene glycol solution is used, in the first mode, the temperature control component 400 can more effectively store energy in the energy storage medium; in the second mode, when the liquid in the first reservoir 210 flows through the first pipeline 610 and exchanges heat with these optimized energy storage media, a more stable and precise temperature can be obtained and pumped into the furniture body 100, thereby improving the temperature control effect of the furniture and the user experience.

[0037] Furthermore, the outer wall of the accumulator 300 is wrapped with an insulation layer, which is a material with a low thermal conductivity. Its main function is to effectively prevent heat loss from the inside of the accumulator 300 to the external environment, or from the external environment to the inside of the accumulator 300. This insulation layer can be made of various materials, such as polyurethane foam, glass wool, rock wool, vacuum insulation panels, etc.

[0038] Wrapping an insulation layer around the outer wall of the accumulator 300 significantly reduces heat exchange between the accumulator 300 and the external environment. In the first mode, when the main controller controls the temperature control component 400 to store energy in the energy storage medium within the accumulator 300, the insulation layer effectively reduces heat loss from the energy storage medium to the environment, thereby improving energy storage efficiency and ensuring more energy is effectively stored. In the second mode, when the main controller controls the first pump 510 to operate, causing the liquid in the first reservoir 210 to flow through the first pipe 610 and exchange heat with the energy storage medium, the insulation layer maintains the temperature of the energy storage medium, reducing its susceptibility to ambient temperature fluctuations. This extends the effective energy release time of the energy storage medium, ensuring that the circulating liquid continuously receives stable heat or cold, thus providing a more stable and longer-lasting temperature control effect for the furniture body 100. Furthermore, reducing unnecessary heat loss also helps reduce the workload and energy consumption of the temperature control component 400, improving the energy utilization efficiency of the entire temperature control system.

[0039] The temperature control component 400 includes a thermoelectric cooler 410 and a heat sink 420. The thermoelectric cooler 410 is electrically connected to the main controller. One side of the thermoelectric cooler 410 is attached to the outer wall of the energy storage device 300, and the heat sink 420 is connected to the other side of the thermoelectric cooler 410. A fan 430 is mounted on the heat sink 420. Specifically, the thermoelectric cooler 410, also known as a Peltier module, is a solid-state device that uses the Peltier effect to achieve cooling or heating. When direct current passes through the thermoelectric cooler 410, one side absorbs heat and becomes cooler, while the other side releases heat and becomes hotter. By changing the direction of the current, the cooling and heating functions can be switched. Its advantages include no moving mechanical parts, small size, fast response speed, high temperature control accuracy, and the ability to achieve precise local temperature control.

[0040] In this embodiment, the thermoelectric cooler 410 is electrically connected to the main controller. The main controller precisely controls its operating state and power according to a preset temperature target or the current system state, thereby achieving precise temperature regulation of the energy storage medium. The heat sink 420 is a device that enhances heat dissipation efficiency by increasing surface area. It is typically made of a metal material with good thermal conductivity (such as aluminum or copper) and has a finned structure. The heat sink 420 is connected to the other side of the thermoelectric cooler 410 to efficiently transfer the heat generated by the thermoelectric cooler 410 during operation (or the heat absorbed from the environment) to the surrounding air, or to absorb heat from the surrounding air and transfer it to the thermoelectric cooler 410, thereby maintaining the temperature difference between the two sides of the thermoelectric cooler 410 and ensuring its normal and efficient operation. The fan 430 is mounted on the heat sink 420. By actively blowing air through the fins of the heat sink 420, it significantly increases the convective heat transfer coefficient between the heat sink 420 and the surrounding air, thereby greatly improving the heat dissipation efficiency of the heat sink 420.

[0041] The thermoelectric cooler 410 and the heat sink 420 are connected via a heat pipe 440. The heat pipe 440 is a highly efficient heat transfer element, typically filled with a working fluid, which transfers heat through phase change (evaporation and condensation). One end of the heat pipe 440 is connected to the thermoelectric cooler 410, serving as the evaporation end, rapidly absorbing heat generated by or absorbed from the thermoelectric cooler 410, causing the internal working fluid to evaporate. The other end of the heat pipe 440 is connected to the heat sink 420, serving as the condensation end, where the evaporated working fluid condenses and releases heat. This application utilizes the heat pipe 440 to efficiently transfer heat from the thermoelectric cooler 410 to the heat sink 420, preventing heat accumulation in localized areas of the thermoelectric cooler 410.

[0042] Furthermore, fins are connected to the inner side of the accumulator 300, with one end of the fins extending into the interior of the accumulator 300 to uniformly diffuse the heat / cold energy of the semiconductor cooling chip 410 into the energy storage medium within the accumulator 300.

[0043] In one embodiment, the first pipeline 610 includes a first pipe 611, a second pipe 612, and a third pipe 613. The first pipe 611 is connected at both ends to the outlet of the first liquid reservoir 210 and the inlet of the first pump body 510, respectively, and at least a portion of the first pipe 611 is disposed within the accumulator 300 and in contact with the energy storage medium. The second pipe 612 is connected at both ends to the outlet of the first pump body 510 and the inlet of the furniture body 100, respectively. The third pipe 613 is connected at both ends to the outlet of the furniture body 100 and the inlet of the first liquid reservoir 210, respectively.

[0044] Specifically, the main function of the first pipe 611 is to guide the liquid from the first reservoir 210 through the accumulator 300, exchange heat with the energy storage medium, and then transport the heat-exchanged liquid to the inlet of the first pump body 510. The first pipe 611 within the accumulator 300 can be a coil, a straight pipe array, or other structures that increase the contact area to optimize heat exchange efficiency. This connection method ensures that after the liquid flows out of the first reservoir 210, it first enters the first pipe 611, then flows through the accumulator 300 to exchange heat with the energy storage medium, and finally enters the first pump body 510. This ensures that the liquid can fully exchange heat with the energy storage medium before being driven by the pump, thereby achieving pre-regulation of the liquid temperature. The second pipe 612 is responsible for transporting the liquid, pressurized by the first pump body 510, from the outlet of the first pump body 510 to the inlet of the furniture body 100. This connection method ensures that the liquid, after being pressurized and temperature-regulated by the first pump body 510, can be directly and effectively delivered to the interior of the furniture body 100 to regulate its temperature. The third pipe 613 is used to guide the liquid that has completed heat exchange from the outlet of the furniture body 100 back to the inlet of the first liquid reservoir 210, thus completing the entire liquid circulation process. This connection method forms a liquid return path, allowing the liquid to smoothly return to the first liquid reservoir 210 after completing the temperature regulation task of the furniture body 100, preparing for the next cycle.

[0045] The first conduit 611 located within the accumulator 300 is arranged in a serpentine pattern. This arrangement means that the first conduit 611 is bent into a series of continuous S-shaped, U-shaped, or spiral curves within the accumulator 300, rather than a simple straight line or a single bend. This design significantly increases the contact area between the first conduit 611 and the energy storage medium within the accumulator 300, and extends the residence time of the circulating liquid within the accumulator 300. Specifically, the first conduit 611 can be processed into a multi-segmented bend or wound into a spiral shape to maximize the filling of the internal space of the accumulator 300, ensuring sufficient heat transfer between the liquid and the energy storage medium as the liquid flows through the accumulator 300, thereby improving energy transfer efficiency.

[0046] refer to Figure 2In another embodiment, the first conduit 610 includes a first conduit 611, a second conduit 612, and a third conduit 613. Specifically, the two ends of the first conduit 611 are connected to the outlet of the first liquid reservoir 210 and the inlet of the furniture body 100, respectively. At least a portion of the first conduit 611 is located inside the accumulator 300 and is in contact with the energy storage medium. The first conduit 611 is responsible for transporting liquid from the first liquid reservoir 210 into the accumulator 300, where it undergoes sufficient heat exchange with the energy storage medium to bring the liquid to the required temperature. Subsequently, the temperature-controlled liquid enters directly into the inlet of the furniture body 100 through the first conduit 611, ensuring that heat or cold can be quickly and effectively transferred to the interior of the furniture body 100.

[0047] The two ends of the second pipe 612 are connected to the liquid outlet of the furniture body 100 and the liquid inlet of the first pump body 510, respectively. The function of the second pipe 612 is to collect the liquid that has completed the temperature control task and flowed out of the furniture body 100, and guide it to the liquid inlet of the first pump body 510. Through this connection, the first pump body 510 can effectively draw liquid from the furniture body 100, maintaining a stable fluid circulation inside the furniture body 100.

[0048] The third pipe 613 is connected at both ends to the outlet of the first pump body 510 and the inlet of the first liquid reservoir 210, respectively. This third pipe 613 transports the liquid, pressurized by the first pump body 510, back to the first liquid reservoir 210, thus completing the entire liquid circulation loop. The first liquid reservoir 210 serves as a liquid storage and replenishment unit, providing the starting point for the next round of temperature-controlled circulation.

[0049] By connecting the first pipe 611 to the liquid inlet of the furniture body 100, the liquid after heat exchange in the accumulator 300 can directly and stably enter the furniture body 100, thereby ensuring that heat or cold can be efficiently and evenly transferred to the furniture body 100. Simultaneously, by placing the first pump 510 after the liquid outlet of the furniture body 100, the liquid is pumped back to the first reservoir 210 through the second pipe 612 and the third pipe 613. This rear-mounted pump layout helps maintain a more stable fluid pressure and flow rate inside the furniture body 100, effectively avoiding localized high pressure or uneven flow rate that might occur with a front-mounted pump, further improving the uniformity of temperature control and the overall energy efficiency of the system.

[0050] The temperature control system for the furniture also includes a second liquid reservoir 220, which is connected to the first liquid reservoir 210 and is used to replenish the first liquid reservoir 210 with liquid. The second liquid reservoir 220 is an independent container whose main function is to serve as a storage unit for backup liquid. The connection between the second liquid reservoir 220 and the first liquid reservoir 210 can be achieved through one or more pipes. The connection method can include direct connection, connection controlled by a valve, or forced delivery via an auxiliary pump. For example, a one-way valve or solenoid valve can be installed to control the direction and flow rate of the liquid and prevent backflow. Furthermore, the connection can be designed as a detachable structure for easy maintenance and cleaning.

[0051] The function of the second reservoir 220 in replenishing liquid to the first reservoir 210 is designed to automatically or semi-automatically maintain the liquid level in the first reservoir 210 within a preset range. The replenishment mechanism can be varied. For example, automatic replenishment can be achieved through gravity; when the liquid level in the first reservoir 210 falls below a certain threshold, liquid from the second reservoir 220 flows into the first reservoir 210 under gravity until the liquid level is restored. Alternatively, a liquid level sensor can work in conjunction with the main controller. When the main controller detects that the liquid level in the first reservoir 210 is too low, it sends a command to drive a small pump or open a solenoid valve to pump or release liquid from the second reservoir 220 into the first reservoir 210, thereby ensuring that the liquid level in the first reservoir 210 is always maintained within the normal operating range. This not only ensures that the first pump 510 can continuously and stably drive liquid circulation, avoiding damage caused by idling or air intake, but also ensures that the heat exchange efficiency between the liquid and the energy storage medium is not affected, maintaining the temperature control effect of the furniture body 100.

[0052] In some of the embodiments described above in this application, a temperature control system for furniture is proposed, which controls the overall temperature of the furniture body 100 through a single circulation path. However, in practical applications, the furniture body 100 may contain multiple areas that require independent or differentiated temperature control. For example, for a double mattress, it may be necessary to adjust the left and right sides of the mattress to different temperatures. A single circulation path is insufficient to meet such refined and regionalized temperature control requirements.

[0053] In this regard, refer to Figure 3 The temperature control system for furniture items in this application also includes a second pump body 520 electrically connected to the main controller. The second pump body 520 is similar to the first pump body 510, both used to drive liquid flow in a circulation path. The second pump body 520 can take various forms such as a micro water pump, a diaphragm pump, or a centrifugal pump.

[0054] Meanwhile, the furniture body 100 includes a first part 110 and a second part 120. The furniture body 100 is divided into at least two independent temperature-controlled zones, namely the first part 110 and the second part 120, to meet the differentiated temperature control needs of different areas of the furniture. For example, for a double mattress, the first part 110 can be the left side area and the second part 120 can be the right side area; for a multi-seat sofa, the first part 110 can be one seating area and the second part 120 can be another seating area; for a single chair, the first part 110 can be the seat cushion area and the second part 120 can be the backrest area.

[0055] The first part 110, the first liquid reservoir 210, and the first pump body 510 are connected by a first pipe 610 to form a first circulation path. This first circulation path is an independent liquid circulation loop that provides temperature control for the first part 110 of the furniture body 100. In this path, the liquid in the first liquid reservoir 210 is driven by the first pump body 510 and flows through the first pipe 610. At least a portion of the first pipe 610 is located within the accumulator 300 and exchanges heat with the energy storage medium, thereby bringing the liquid to the target temperature. Subsequently, the liquid is pumped to the first part 110 of the furniture body 100 for heating or cooling. After heat transfer is completed, the liquid returns to the first liquid reservoir 210, forming a closed loop.

[0056] Furthermore, the second part 120, the first reservoir 210, and the second pump body 520 are connected via a second conduit 620 to form a second circulation path. At least a portion of the second conduit 620 is located within the accumulator 300 and is in contact with the energy storage medium. This second circulation path is an independent liquid circulation loop providing temperature control for the second part 120 of the furniture body 100. Similar to the first circulation path, the second pump body 520 drives the liquid in the first reservoir 210 through the second conduit 620. At least a portion of the second conduit 620 is also located within the accumulator 300, exchanging heat with the energy storage medium to regulate the liquid's temperature. The temperature-regulated liquid is then pumped to the second part 120 of the furniture body 100 for further temperature control and finally returns to the first reservoir 210, completing the circulation. This independently configured circulation path ensures that the first part 110 and the second part 120 can be independently temperature-controlled.

[0057] In the second mode, the main controller controls the first pump 510 to operate, causing the liquid in the first reservoir 210 to flow through the first pipeline 610, exchange heat with the energy storage medium, and then be pumped into the first section 110. And / or, it controls the second pump 520 to operate, causing the liquid in the first reservoir 210 to flow through the second pipeline 620, exchange heat with the energy storage medium, and then be pumped into the second section 120. In the second mode, the main controller independently or collaboratively controls the operation of the first pump 510 and the second pump 520 according to a preset program or user instructions. When temperature control of the first section 110 is required, the main controller starts the first pump 510, driving the liquid to flow in the first circulation path, exchanging heat with the energy storage medium to control the temperature of the first section 110. When temperature control of the second section 120 is required, the main controller starts the second pump 520, driving the liquid to flow in the second circulation path, exchanging heat with the energy storage medium to control the temperature of the second section 120. The main controller can control any one pump body individually or two pump bodies simultaneously, thereby enabling flexible and independent temperature control of different parts of the furniture body.

[0058] The rotational speeds of the first pump body 510 and the second pump body 520 determine the volume of heat transfer fluid flowing through the first part 110 and the second part 120 per unit time, thereby affecting the rate of temperature change on the surfaces of the first part 110 and the second part 120. By controlling the rotational speeds of the first pump body 510 and the second pump body 520, synchronous and differentiated temperature control of different areas of the furniture body 100 is achieved.

[0059] refer to Figure 4 In another embodiment, the temperature control system for the furniture item further includes a valve assembly 700 electrically connected to the main controller. The furniture item body 100 includes a first part 110 and a second part 120. The first part 110, the first reservoir 210, and the first pump body 510 are connected via a first pipe 610 to form a first circulation path; the second part 120, the first reservoir 210, and the first pump body 510 are connected via a third pipe 630 to form a third circulation path, at least a portion of which is located within an accumulator 300 and in contact with the energy storage medium. The valve assembly 700 is connected to the first pipe 610 and the third pipe 630. In the second mode, the main controller controls the first pump body 510 to operate so that the liquid in the first reservoir 210 flows through the first pipeline 610 and exchanges heat with the energy storage medium before being pumped into the first part 110, and / or, so that the liquid in the first reservoir 210 flows through the third pipeline 630 and exchanges heat with the energy storage medium before being pumped into the second part 120.

[0060] The valve assembly 700 is a collection of devices used to control the direction, flow rate, or pressure of fluid. In this application, the main function of the valve assembly 700 is to selectively open or close the liquid flow in the first pipeline 610 and the third pipeline 630 according to the instructions of the main controller, thereby achieving independent or combined temperature control of different parts of the furniture body 100. The valve assembly 700 can consist of one or more solenoid valves, electric valves, or manual valves. For example, a three-way valve or a multi-way valve can be used, and the fluid path can be switched by changing the position of the valve core. When the main controller issues an instruction, the solenoid valve or electric valve will open or close the corresponding channel according to preset logic to ensure that the liquid can flow accurately to the target part. The valve assembly 700 is electrically connected to the main controller, meaning that the main controller can precisely control the action of the valve assembly 700 through electrical signals.

[0061] The third pipe 630 is another liquid circulation path parallel to the first pipe 610, specifically used to deliver the temperature-controlled liquid to the second part 120 of the furniture body 100. Together with the first pipe 610, it forms a multi-path circulation system, allowing the temperature-controlled liquid to flow independently or selectively to different parts of the furniture body 100. The third pipe 630 can share a section of the first pipe 610.

[0062] Specifically, when temperature control is required for the first part 110 of the furniture body 100, the main controller controls the valve assembly 700 to open the channel to the first pipe 610 and simultaneously starts the first pump 510, allowing the liquid in the first reservoir 210 to flow through the first pipe 610, exchange heat with the energy storage medium, and then be pumped into the first part 110. Similarly, when temperature control is required for the second part 120 of the furniture body 100, the main controller controls the valve assembly 700 to open the channel to the third pipe 630 and starts the first pump 510, allowing the liquid to flow through the third pipe 630, exchange heat with the energy storage medium, and then be pumped into the second part 120. The valve assembly 700 can also be fully opened, allowing the first pump 510 to introduce the liquid after heat exchange with the energy storage medium into both the first part 110 and the second part 120, thereby achieving temperature control for the first part 110, the second part 120, or both simultaneously to meet the user's personalized needs and optimize energy use.

[0063] Furthermore, the system also includes a user terminal that communicates with the main controller. The user terminal runs a corresponding application (APP) or mini-program, providing a visual operating interface for users to easily set parameters and view the status of the temperature control system. Communication between the application or mini-program and the main controller can employ at least one of the following wireless communication protocols: Wi-Fi, Bluetooth, or ZigBee. The main controller receives control commands from the user terminal (application or mini-program) and executes corresponding control operations accordingly, while simultaneously feeding back real-time system operating data to the user terminal for viewing.

[0064] Specifically, an application or mini-program should provide at least the following functional modules: (1) Temperature setting module: Users can set the target temperature of each temperature zone of the furniture body 100 (e.g., 15-28°C in cooling mode, 30-45°C in heating mode) and the preset energy storage temperature of the energy storage unit 300 in the first mode (e.g., 5-10°C) through the application or mini-program. (2) Mode switching module: Users can manually control the temperature control system to switch between the first mode and the second mode through the application or applet, or select the automatic mode, which is automatically completed by the main controller according to the preset conditions and the feedback of the temperature sensor. (3) Timed / Reservation Module: Users can set timed tasks through the application or mini-program, such as automatically switching from the first mode to the second mode at a scheduled time (e.g., cooling / heating the mattress 30 minutes before bedtime), or starting the first mode to store energy during specific periods (e.g., during periods of low electricity prices). (4) Status display module: The application or applet displays the system's operating status in real time, including but not limited to the current working mode (energy storage mode / energy supply mode), the current temperature of the energy storage 300, the current temperature of each temperature zone of the furniture body 100, the working power of the temperature control component 400, and the operating speed of the pump body. (5) Independent control module for different areas: When the furniture body 100 is divided into multiple temperature zones (such as the first part 110 and the second part 120), the user can independently set the target temperature and working mode of each temperature zone through the application or mini-program to achieve personalized and differentiated temperature control.

[0065] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0066] Furthermore, the use of terms such as "first," "second," and "a" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0067] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0068] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.

Claims

1. A temperature control system for furniture, characterized in that, include: The body of the furniture item; First liquid reservoir; An energy storage device, wherein the energy storage device is filled with an energy storage medium; A temperature control component is attached to the energy storage device and is configured to regulate the temperature of the energy storage medium during operation. A first pump body, the first pump body being used to drive the liquid circulation flow; The main controller is electrically connected to the temperature control component and the first pump body; The furniture body, the first liquid reservoir, and the first pump body are connected by a first pipeline to form a first circulation path, and at least a portion of the first pipeline is located inside the accumulator and in contact with the energy storage medium. The temperature control system of the furniture includes a first mode and a second mode; In the first mode, the main controller controls the temperature control component to operate so that it stores energy in the energy storage medium in the accumulator; In the second mode, the main controller controls the first pump to operate, so that the liquid in the first reservoir flows through the first pipeline and exchanges heat with the energy storage medium before being pumped into the furniture body.

2. The temperature control system for furniture items according to claim 1, characterized in that, The first pipeline includes a first pipe, a second pipe and a third pipe. The two ends of the first pipe are respectively connected to the outlet of the first liquid reservoir and the inlet of the first pump body. At least a portion of the first pipe is located inside the accumulator and is in contact with the energy storage medium. The two ends of the second pipe are respectively connected to the liquid outlet of the first pump body and the liquid inlet of the furniture body, and the two ends of the third pipe are respectively connected to the liquid outlet of the furniture body and the liquid inlet of the first reservoir.

3. The temperature control system for furniture items according to claim 1, characterized in that, The first pipeline includes a first pipe, a second pipe and a third pipe. The two ends of the first pipe are respectively connected to the outlet of the first liquid storage device and the inlet of the furniture body. At least a portion of the first pipe is located inside the energy storage device and is in contact with the energy storage medium. The two ends of the second pipe are respectively connected to the liquid outlet of the furniture body and the liquid inlet of the first pump body, and the two ends of the third pipe are respectively connected to the liquid outlet of the first pump body and the liquid inlet of the first reservoir.

4. The temperature control system for furniture items according to claim 2, characterized in that, The first pipe located within the accumulator is arranged in a serpentine pattern.

5. The temperature control system for furniture items according to claim 1, characterized in that, The outer wall of the accumulator is covered with an insulation layer.

6. The temperature control system for furniture items according to claim 1, characterized in that, The energy storage medium is PCM or an aqueous solution of ethylene glycol.

7. The temperature control system for furniture items according to claim 1, characterized in that, The temperature control component includes a thermoelectric cooler and a heat sink. The thermoelectric cooler is electrically connected to the main controller. One side of the thermoelectric cooler is attached to the outer wall of the energy storage device. The heat sink is connected to the other side of the thermoelectric cooler and is equipped with a fan.

8. The temperature control system for furniture items according to claim 1, characterized in that, It also includes a second reservoir, which is connected to the first reservoir and is used to replenish the first reservoir with liquid.

9. The temperature control system for furniture items according to claim 1, characterized in that, It also includes a second pump body electrically connected to the main control unit. The furniture body includes a first part and a second part. The first part, the first liquid reservoir, and the first pump body are connected through a first pipeline to form a first circulation path. The second part, the first reservoir and the second pump body are connected by a second pipeline to form a second circulation path, at least a portion of the second pipeline is located inside the accumulator and is in contact with the energy storage medium; In the second mode, the main controller controls the first pump to operate so that the liquid in the first reservoir flows through the first pipeline and exchanges heat with the energy storage medium before being pumped to the first part, and / or controls the second pump to operate so that the liquid in the first reservoir flows through the second pipeline and exchanges heat with the energy storage medium before being pumped to the second part.

10. The temperature control system for furniture items according to claim 1, characterized in that, It also includes a valve group electrically connected to the main controller, and the furniture body includes a first part and a second part, wherein the first part, the first liquid reservoir and the first pump body are connected through a first pipeline to form a first circulation path; The second part, the first reservoir and the first pump body are connected by a third pipeline to form a third circulation path, at least a portion of which is located inside the accumulator and in contact with the energy storage medium; The valve assembly is connected to the first pipeline and the third pipeline; In the second mode, the main controller controls the first pump to operate so that the liquid in the first reservoir flows through the first pipeline and exchanges heat with the energy storage medium before being pumped to the first part, and / or so that the liquid in the first reservoir flows through the third pipeline and exchanges heat with the energy storage medium before being pumped to the second part.

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