CN218677135U - Heat source management system - Google Patents

Abstract

The application relates to the technical field of heat source management, and discloses a heat source management system, which comprises: a heat source management object; the energy storage device comprises a shell and a phase change energy storage material filled in the shell, wherein the shell is provided with a first interface for the refrigerant to enter and a second interface for the refrigerant to flow out; the heat conduction element is connected between the heat source management object and the energy storage device; the refrigerant circulating pipeline penetrates through the phase change energy storage material, the input end of the refrigerant circulating pipeline is connected with the first interface, the output end of the refrigerant circulating pipeline is connected with the second interface, and low-temperature refrigerants flow from the input end to the output end; the regulating valve is arranged at the input end; the liquid level monitoring device is communicated with the shell and is electrically connected with the regulating valve, the volume of the phase-change energy storage material expands after absorbing heat, the liquid level in the liquid level monitoring device can be driven to rise, and the liquid level monitoring device determines the volume change rate of the phase-change energy storage material after absorbing heat according to the height change of the liquid level so as to control the opening degree of the regulating valve. The energy-saving operation can be realized according to the requirement, and the energy consumption is saved.

Description

Heat source management system

Technical Field

The present application relates to the field of heat source management technologies, and for example, to a heat source management system.

Background

At present, the development of scientific technology promotes the updating iteration of electronic products, and the electronic products lead the social life to change from the world to the ground. As is well known, when an electronic product normally works, core components of the electronic product usually generate a large amount of heat, and with popularization of clean energy and energy-saving and environmental protection concepts, heat dissipation problems of the core components of the electronic product concern service life, safety, reliability and the like of the electronic product, and are always the key points of attention and research of scientific research technicians.

The existing vehicle power battery combined type heat management system based on the high-thermal-conductivity phase-change material comprises an electronic expansion valve, an evaporator, a compressor, a box body with a flow channel, a refrigerant flow channel and a phase-change material, wherein the electronic expansion valve, the evaporator and the compressor are connected in series through pipelines, one side of the electronic expansion valve, which is not connected with the evaporator, is connected with one end of the box body with the flow channel, one side of the compressor, which is not connected with the evaporator, is connected with the other side of the box body with the flow channel, a plurality of refrigerant flow channels are arranged on six side walls of the box body with the flow channel, the electronic expansion valve, the evaporator and the compressor are connected with the refrigerant flow channel in the box body with the flow channel through a sealing pipeline, the whole box body is cooled, heat absorbed by the phase-change material is taken away in time, the phase-change material is arranged in a space formed by surrounding of the plurality of refrigerant flow channels, the battery is installed in the box body with the flow channel, other spaces are filled with the phase-change material, and the phase-change material is high-change material with high-conductivity and high phase-change latent heat.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the electronic expansion valve, the evaporator and the compressor of the thermal management system are connected with a refrigerant flow channel in the box body with the flow channel through a sealing pipeline to cool the box body with the flow channel; the battery and the phase-change material are located in the box body with the flow channel, namely, the refrigerant flow channel firstly cools the box body with the flow channel, then the box body with the flow channel cools the phase-change material, and finally the phase-change material cools the electronic product. When the phase-change material is cooled, the refrigerant in the refrigerant flow channel is in a flowing state all the time. However, when the electronic product stops operating immediately after the electronic product starts to generate heat, or when the temperature rise value of the phase change material is low, it is not necessary for the refrigerant to flow and take away the heat generated by the electronic product or the heat continued in the phase change material. In this way, the flow of the refrigerant cannot be adjusted according to the difference of the stored energy in the phase-change material, which will cause energy waste.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a heat source management system to solve the problem that a refrigerant in a refrigerant channel in an existing heat management system cannot run in an energy-saving manner as required.

In some embodiments, the heat source management system comprises: a heat source management object; the energy storage device comprises a shell and a phase change energy storage material filled in the shell, wherein a first interface for a cooling medium to enter and a second interface for the cooling medium to flow out are arranged on the shell; the heat conduction element is connected between the heat source management object and the energy storage device and is used for transferring the heat of the heat source management object to the phase-change energy storage material; the refrigerant circulating pipeline penetrates through the phase-change energy storage material, the input end of the refrigerant circulating pipeline is connected with the first interface, the output end of the refrigerant circulating pipeline is connected with the second interface, and low-temperature refrigerant flows from the input end to the output end so as to lead out heat in the phase-change energy storage material; the regulating valve is arranged at the input end; the liquid level monitoring device is communicated with the shell and is electrically connected with the regulating valve, the volume of the phase-change energy storage material expands after absorbing heat and can drive the liquid level in the liquid level monitoring device to rise, and the liquid level monitoring device determines the volume change rate of the phase-change energy storage material after absorbing heat according to the height change of the liquid level so as to control the opening degree of the regulating valve.

In some embodiments, the fluid level monitoring device comprises: the lower part of the hollow inner cavity is filled with liquid, the hollow inner cavity is constructed in the liquid storage tank, and the upper part of the hollow inner cavity can be communicated to the inside of the shell; the liquid pipe is fixedly arranged at the bottom of the liquid storage tank, the top end of the liquid pipe is blocked, and the bottom end of the liquid pipe is provided with a communication hole so that liquid can flow into the liquid pipe; the liquid level sensor is arranged in the liquid pipe and used for detecting the liquid level change of the liquid flowing into the liquid pipe; the controller is electrically connected with the liquid level sensor and the regulating valve; the phase-change energy storage material absorbs heat and then expands in volume, liquid can be driven to flow into the liquid pipe by volume expansion force, the volume change rate of the phase-change energy storage material is determined by the controller according to the liquid level change value detected by the liquid level sensor, and the opening degree of the adjusting valve is controlled under the condition that the volume change rate is larger than a preset value.

In some embodiments, the fluid reservoir comprises: the air inlet pipeline is connected between the liquid storage tank and the shell, and is provided with a first one-way valve so as to introduce gas into the liquid storage tank after the phase change energy storage material absorbs heat and expands in volume; and the gas outlet pipeline is connected between the liquid storage tank and the shell and is provided with a second one-way valve so as to lead gas into the shell after the phase change energy storage material releases heat and shrinks in volume.

In some embodiments, the housing includes a first sidewall connected to the thermally conductive element, the thermally conductive element including: a heat pipe in heat-conducting contact with the heat source management object; and the heat dissipation end of the heat conduction plates penetrates through the first side wall and is arranged in the phase change energy storage material, and the heat absorption end of the heat conduction plates is arranged in the heat pipe.

In some embodiments, a heat dissipation area of the phase change energy storage material is formed between every two adjacent heat conduction plates, and the heat dissipation end is provided with a through hole which allows the liquid phase change energy storage material to flow between the heat dissipation areas and penetrates through the heat dissipation end.

In some embodiments, the front end of the heat dissipating end is formed with a first heat dissipating fin, and the through hole is located between the first heat dissipating fin and the first sidewall.

In some embodiments, the refrigerant circulation line includes: and the heat exchange pipe section is arranged inside the phase change energy storage material in a penetrating way and is communicated between the input end and the output end.

In some embodiments, the heat exchange tube segment comprises: the first pipe section is directly communicated with the input end and is arranged close to the first side wall; the second pipe section is directly communicated with the output end and is communicated with the first pipe section through an arc bending section.

In some embodiments, a surface of the heat exchange tube segment is provided with a plurality of second heat dissipating fins.

In some embodiments, the plurality of heat-conducting plates and the plurality of second heat-dissipating fins are staggered.

The heat source management system provided by the embodiment of the disclosure can realize the following technical effects:

the heat that the thermal management object gived off can transmit the phase transition energy storage material in the energy storage device through heat-conducting element, and the refrigerant circulation pipeline who wears to locate in the phase transition energy storage material can absorb the heat in the phase transition energy storage material, can cool off the phase transition energy storage material fast promptly, has improved cooling efficiency. Meanwhile, the inside of the shell is communicated to the liquid level monitoring device, the phase change energy storage material inside the shell expands in volume after absorbing heat, and the liquid level in the liquid level monitoring device can be driven to rise by the volume expansion force in the shell.

Under the condition that a heat management object, such as a variable frequency chip of an air conditioner, stops working immediately after the variable frequency chip starts to generate heat, the absorbed heat of a phase change energy storage material, such as paraffin and the like, in a shell is less, or under the condition that the temperature rise value is lower after the phase change energy storage material absorbs the heat, the volume change rate of the phase change energy storage material is smaller than a preset value, and at the moment, the opening degree of an adjusting valve can be controlled to be zero so as to close a refrigerant circulation pipeline; under the condition that the temperature rise value is high after the phase change energy storage material absorbs the heat, the volume change rate of the phase change energy storage material is larger than a preset value, and at the moment, the opening degree of the regulating valve can be controlled to be larger than zero, so that the refrigerant circulation pipeline is conducted, and the heat in the phase change energy storage material is led out. Therefore, the operation of the refrigerant circulating pipeline can be controlled according to the volume change rate of the phase change energy storage, namely the refrigerant circulating pipeline can be controlled to operate in an energy-saving mode as required according to different absorbed heat of the phase change energy storage material, so that the heat of the energy storage device can be led out, the energy consumption can be saved, and the energy utilization rate can be improved.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic diagram of a heat source management system according to an embodiment of the present disclosure;

FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1 provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of another heat source management system provided by an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a heat conducting element provided by the embodiments of the present disclosure;

FIG. 5 is a schematic diagram of another heat source management system provided by an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of another heat-conducting element provided by an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of another heat conducting element provided by the embodiment of the disclosure.

Reference numerals:

100. a heat source management object;

200. an energy storage device; 210. a housing; 211. a first interface; 212. a second interface; 213. a first side wall; 220. a phase change energy storage material;

300. a heat conducting element; 310. a heat pipe; 320. a heat conducting plate; 321. a heat dissipation end; 3211. a through hole; 3212. a first heat radiation fin;

400. a refrigerant circulation line; 410. an input end; 420. an output end; 430. a heat exchange tube section; 431. A first tube section; 432. a second tube section; 433. an arc-shaped bending section; 434. a second heat radiation fin;

500. adjusting a valve;

600. a liquid level monitoring device; 610. a liquid storage tank; 611. a hollow interior cavity; 612. an air intake line; 613. A first check valve; 614. an air outlet pipeline; 615. a second one-way valve; 620. a liquid pipe; 621. and a communicating hole.

Detailed Description

So that the manner in which the features and advantages of the embodiments of the present disclosure can be understood in detail, a more particular description of the embodiments of the disclosure, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

FIG. 1 is a schematic diagram of a heat source management system according to an embodiment of the present disclosure; fig. 2 isbase:Sub>A cross-sectional viewbase:Sub>A-base:Sub>A of fig. 1 provided in an embodiment of the present disclosure. Wherein, the arrow direction represents the flowing direction of the cooling medium. Referring to fig. 1 and 2, an embodiment of the present disclosure provides a heat source management system, which includes a heat source management object 100, an energy storage device 200, a heat conducting element 300, a refrigerant circulation pipeline 400, a regulating valve 500, and a liquid level monitoring device 600. The energy storage device 200 includes a housing 210 and a phase change energy storage material 220 filled in the housing 210, wherein the housing 210 is provided with a first port 211 through which a refrigerant enters and a second port 212 through which the refrigerant flows out. The heat conducting element 300 is connected between the heat source management object 100 and the energy storage device 200, and is used for transferring heat of the heat source management object 100 to the phase change energy storage material 220. The refrigerant circulation pipeline 400 is arranged inside the phase change energy storage material 220 in a penetrating mode, the input end 410 is connected with the first connector 211, the output end 420 is connected with the second connector 212, and the low-temperature refrigerant flows from the input end 410 to the output end 420 so as to conduct out heat in the phase change energy storage material 220. The regulator valve 500 is disposed at the input 410. The liquid level monitoring device 600 is communicated with the housing 210 and electrically connected with the regulating valve 500, the volume of the phase-change energy storage material 220 expands after absorbing heat, the liquid level in the liquid level monitoring device 600 can be driven to rise, and the liquid level monitoring device 600 determines the volume change rate of the phase-change energy storage material 220 after absorbing heat according to the height change of the liquid level so as to control the opening degree of the regulating valve 500.

Alternatively, the heat source management object 100 may be an inverter chip of an air conditioner, or may be a new energy battery. It is understood that the heat source management object 100 includes, but is not limited to, an inverter chip of an air conditioner and a new energy battery, and may be other types of chips.

The frequency conversion chip is an important component in the frequency conversion air conditioner and determines the running frequency of the compressor. The higher the running frequency of the compressor is, the stronger the refrigerating capacity in summer is, and at the moment, the heating of the frequency conversion chip is increased rapidly. The frequency conversion chip mainly comprises: the inverter Module is a frequency conversion Module, which is formed by packaging and integrating an Intelligent Power Module (IPM for short), an Insulated gate bipolar Transistor (IGBT for short), a diode and a rectifier bridge. Since the inverter module is a main heat source, the inverter module may also be referred to as a heat source module, i.e., a heat source management object. With the improvement of semiconductor technology, the chip design is more compact, the heat flux density of the device is continuously increased, and the volume of the device tends to be miniaturized. The temperature of the chip is too high, so that various quantitative indexes of the equipment have temperature deviation, the quantitative indexes are increased or reduced, and the conditions of equipment halt, fire and the like can be caused in serious cases. Therefore, the working safety and high-temperature refrigerating capacity of the air conditioner are severely restricted by the frequency conversion chip due to the problems of high heat flux density, high power heating and heat dissipation.

Alternatively, the housing 210 may have a cylindrical shape, a square shape, a rectangular parallelepiped shape, or the like. Optionally, the housing 210 is made of a heat insulating material, and the surface is coated with a fireproof coating. Specifically, the non-contact surface of the casing 210 with the heat conducting element 300 is made of a heat insulating material, and the contact surface of the casing 210 with the heat conducting element 300 is a plate material with good heat conductivity, such as an aluminum plate.

Alternatively, the phase change energy storage material 220 may be paraffin. The paraffin has large phase change latent heat and low melting point, can quickly reach the melting point in the process of absorbing heat, and can keep the temperature unchanged and absorb a large amount of heat in the process of generating solid-liquid phase change. That is, the phase change energy storage material 220 does not have an overcooling phenomenon when being solidified, and the phase change process is similar to an isothermal process, so that a heat source management object such as a frequency conversion chip of an air conditioner can operate under a stable temperature condition. Optionally, in order to improve the thermal conductivity of the paraffin, an additive may be added to the paraffin to enhance the thermal conductivity. It is understood that the phase change energy storage material 220 includes, but is not limited to, paraffin. Optionally, the phase change energy storage material 220 has the advantages of good chemical stability, no toxicity, no corrosion, no flammability and explosion, low cost, and the like.

Optionally, the heat conducting element 300 is connected between the heat source management object 100 and the energy storage device 200, that is, one end of the heat conducting element 300 is connected to the heat source management object 100 to absorb heat of the heat source management object 100, and the other end of the heat conducting element 300 extends into the phase change energy storage material inside the housing 210 to transfer the heat of the heat source management object 100 to the phase change energy storage material 220 for storage. Alternatively, the heat conducting element 300 is made of a material with good heat conducting property.

Optionally, the refrigerant circulation pipeline 400 is disposed through the phase change energy storage material 220. The input end 410 is connected to the first interface 211 of the housing 210, the output end 420 is connected to the second interface 212 of the housing 210, and the low-temperature refrigerant can flow from the input end 410 to the output end 420. In this way, in the process that the low-temperature refrigerant flows from the input end 410 to the output end 420, the heat of the heat source management object 100 stored in the phase change energy storage material 220 can be absorbed to take the heat out of the shell 210, so that the heat source management object 100 is cooled.

Alternatively, the refrigerant circulation line 400 is connected to a line segment having a heat absorbing function in the air conditioner. Specifically, the refrigerant circulation pipeline 400 may be communicated to an outlet pipe section of an indoor heat exchanger, i.e., an evaporator, of the air conditioner in a refrigeration state, so that a low-temperature refrigerant flows through the refrigerant circulation pipeline 400 to absorb heat in the phase-change energy storage material 220; alternatively, the refrigerant circulation line 400 may be communicated with an inlet pipe section of the outdoor heat exchanger of the air conditioner in a heating state, so that the low-temperature refrigerant flows through the refrigerant circulation line 400 to absorb heat in the phase-change energy storage material 220.

Optionally, the housing 210 is connected to the liquid level monitoring device 600. The volume of the phase change energy storage material 220 filled in the housing 210 may expand after absorbing the heat of the heat source management object 100, and the volume expansion force in the space of the housing 210 can drive the gas in the space to the liquid level monitoring device 600, so as to drive the liquid level in the liquid level monitoring device 600 to rise. And determining the volume change rate of the phase change energy storage material 220 after absorbing heat according to the height of the liquid level rise.

When the volume change rate is greater than the preset value, it indicates that the phase change energy storage material 220 absorbs a large amount of heat at this time, and the low-temperature refrigerant in the refrigerant circulation pipeline 400 is required to take away the heat, so that the opening of the regulating valve is controlled to be greater than zero, so as to realize the flow of the low-temperature refrigerant from the input end 410 to the output end 420, and realize the derivation of the heat dissipated by the heat source management object 100. When the volume change rate is smaller than the preset value, it indicates that the temperature rise value of the phase change energy storage material 220 is smaller at this time, or the absorbed heat emitted by the heat source management object 100 is less, and the heat can be temporarily stored in the phase change energy storage material 220, so that the continuous absorption of the heat emitted by the heat source management object 100 by the phase change energy storage material 220 is not influenced, and the normal operation of the heat source management object 100 is also not influenced. Therefore, the opening of the regulating valve is controlled to be zero, that is, the operation of the refrigerant circulation pipeline 400 is stopped, thereby saving the energy consumption of the refrigerant. Therefore, according to different heat absorbed by the phase-change energy storage material, the refrigerant circulation pipeline is controlled to operate in an energy-saving mode as required, so that the heat of the energy storage device is led out, the energy consumption can be saved, and the energy utilization rate is improved.

By adopting the heat source management system provided by the embodiment of the disclosure, heat emitted by the heat management object can be transferred to the phase change energy storage material in the energy storage device through the heat conduction element, and the refrigerant circulation pipeline penetrating through the phase change energy storage material can absorb heat in the phase change energy storage material, so that the phase change energy storage material can be rapidly cooled, and the cooling efficiency is improved. Meanwhile, the inside of the shell is communicated to the liquid level monitoring device, the phase change energy storage material inside the shell expands in volume after absorbing heat, the liquid level in the liquid level monitoring device can be driven to rise by the volume expansion force in the shell, the volume change rate of the phase change energy storage material after absorbing heat can be determined through the change of the liquid level detection liquid level height, and therefore the opening degree of the adjusting valve can be controlled according to the volume change rate to control the working state of the refrigerant circulating pipeline. Therefore, the operation or the closing of the refrigerant circulating pipeline can be controlled according to the volume change rate of the phase change energy storage, namely, the refrigerant circulating pipeline can be controlled to operate in an energy-saving mode as required according to different heat absorbed by the phase change energy storage material, so that the heat of the energy storage device can be led out, the energy consumption can be saved, and the energy utilization rate can be improved.

In some embodiments, the fluid level monitoring device 600 includes a fluid reservoir 610, a fluid tube 620, a fluid level sensor, and a controller. The liquid storage tank 610 has a hollow inner cavity, the lower portion of the hollow inner cavity 611 is filled with liquid, and the upper portion of the hollow inner cavity 611 is communicated with the inside of the housing 210. The liquid tube 620 is fixedly arranged at the bottom of the liquid storage tank 610, the top end of the liquid tube 620 is plugged, and the bottom end of the liquid tube 620 is provided with a communication hole 621 so that liquid can flow into the liquid tube 620. The liquid level sensor is disposed in the liquid pipe 620 and is used for detecting a liquid level change after the liquid flows into the liquid pipe 620. The controller is electrically connected with the liquid level sensor and the regulating valve. The phase-change energy storage material 220 absorbs heat and then expands in volume, the liquid can be driven by the volume expansion force to flow into the liquid pipe 620, the controller determines the volume change rate of the phase-change energy storage material 220 according to the liquid level change value detected by the liquid level sensor, and the opening degree of the adjusting valve 500 is controlled under the condition that the volume change rate is larger than a preset value.

Optionally, the lower portion of the hollow inner cavity 611 of the liquid storage tank 610 is filled with liquid, and the bottom portion is fixedly provided with a liquid pipe 620, and the bottom end of the liquid pipe 620 is provided with a communication hole 621, so that the liquid pipe 620 is communicated with the liquid storage tank 610. Thus, the liquid in the reservoir 610 can flow into or out of the liquid outlet pipe 620 through the communication hole 621. Meanwhile, the upper portion of the hollow inner cavity 611 can communicate with the inside of the case 210. As described above, the phase change energy storage material 220 in the case 210 absorbs heat from the heat source management object 100 and undergoes volume expansion, and the volume expansion force generated in the space of the case 210 drives gas into the hollow inner cavity 611, and then liquid can flow into the liquid pipe 620 through the communication hole 621, thereby raising the liquid level.

In this scheme, through the liquid level monitoring device who sets up in liquid pipe 620, can detect liquid level and obtain the change value of liquid level, the controller can determine the volume expansion rate of phase change energy storage material 220 according to the change value of liquid level. When the volume expansion rate is greater than the preset value, controlling the opening degree of the regulating valve 500 to be greater than zero so that the low-temperature refrigerant flows through the refrigerant circulation pipeline 400, thereby taking away the heat emitted by the heat source management object 100 stored in the phase-change energy storage material 220; when the volume expansion ratio is smaller than the preset value, the opening degree of the regulating valve 500 is controlled to be zero, and the low-temperature refrigerant flow stops flowing in the refrigerant circulation pipeline 400. Therefore, the operation or the closing of the refrigerant circulating pipeline can be controlled according to the volume change rate of the phase change energy storage, namely, the refrigerant circulating pipeline can be controlled to operate in an energy-saving mode as required according to different heat absorbed by the phase change energy storage material, so that the heat of the energy storage device can be led out, the energy consumption can be saved, and the energy utilization rate can be improved.

In some embodiments, the reservoir 610 includes an inlet conduit 612 and an outlet conduit 614. An air inlet pipe 612 is connected between the reservoir tank 610 and the housing 210. The gas inlet pipe 612 is provided with a first check valve 613 for introducing gas into the liquid storage tank 610 after the phase change energy storage material 220 absorbs heat and expands in volume. And an outlet duct 614 connected between the reservoir 610 and the housing 210. The gas outlet pipe 614 is provided with a second check valve 615 to introduce gas into the shell 210 after the phase change energy storage material 220 releases heat and shrinks in volume.

In this embodiment, the reservoir 610 is provided with an inlet pipe 612 and an outlet pipe 614 in communication with the housing 210. The air inlet pipe 612 is provided with a first check valve 613. Thus, after the phase change energy storage material 220 absorbs heat and expands in volume, the gas in the housing 210 can be driven to flow towards the liquid storage tank 610 under the driving of the volume expansion force, so that the liquid in the liquid storage tank 610 is driven to flow towards the liquid pipe 620, and the liquid level in the liquid pipe 620 is raised. Meanwhile, the outlet pipeline 614 is provided with a second one-way valve 615. Thus, after the low-temperature refrigerant in the refrigerant circulation pipeline 400 absorbs the heat in the phase change energy storage material 220, the volume of the phase change energy storage material 220 is shrunk, and the gas flows from the liquid storage tank 610 into the housing 210, so as to maintain the balance of the gas pressure in the housing 210.

FIG. 3 is a schematic diagram of another heat source management system provided by an embodiment of the present disclosure; fig. 4 is a schematic structural diagram of a heat conducting element according to an embodiment of the disclosure. Wherein, the arrow direction represents the flowing direction of the cooling medium. As shown in conjunction with fig. 3 and 4, in some embodiments, the housing 210 includes a first sidewall 213 connected to a heat conducting element 300, and the heat conducting element 300 includes a heat pipe 310 and a heat conducting plate 320. And a heat pipe 310 in thermal contact with the heat source management object 100. A plurality of heat conducting plates 320, a heat dissipating end 321 disposed inside the phase change energy storage material 220 through the first sidewall 213, and a heat absorbing end 322 disposed on the heat pipe 310.

Alternatively, the heat pipe 310 can be in direct contact with the heat source management object 100 sufficiently to absorb the heat emitted from the heat source management object 100. The heat pipe 310 has the advantages of relatively low thermal resistance, rapid heat transfer speed and good heat dissipation effect, and can efficiently and uniformly absorb the heat dissipated by the heat source management object 100 and conduct the heat to the phase change energy storage material 220, thereby cooling the heat source management object 100. Alternatively, the heat pipe 310 included in the heat conducting element 300 may be replaced by a metal cooling plate, which has the same advantages as the heat pipe, such as relatively small thermal resistance, rapid heat transfer speed, and good heat dissipation effect.

In this embodiment, the heat dissipating end 321 of the heat conducting plate 320 is disposed inside the phase change energy storage material 220 through the first sidewall 213, and the heat absorbing end 322 is disposed on the heat pipe 310. Thus, the contact area between the heat dissipation end 321 and the phase change energy storage material 220 can be increased, and the heat conduction efficiency of the heat conduction plate 320 can be improved.

Optionally, the first sidewall 213 may have a sidewall with thermal conductivity to transfer the heat of the heat pipe 310 into the phase change energy storage material 220.

Fig. 5 is a schematic structural diagram of another heat source management system provided by the embodiment of the disclosure. Wherein, the arrow direction represents the flowing direction of the cooling medium. As shown in fig. 5, optionally, a portion of the heat pipe 310 near the first sidewall 213 may extend into the phase change energy storage material 220 to improve heat exchange between the heat pipe 310 and the phase change energy storage material 220.

In some embodiments, a heat dissipation region of the phase change energy storage material 220 is formed between every two adjacent heat conduction plates 320, and the heat dissipation end 321 is provided with a through hole 3211 penetrating the heat dissipation end 321 for allowing the liquid phase change energy storage material 220 to flow between the heat dissipation regions.

Optionally, two adjacent heat conductive plates 320 form a heat dissipation zone. Through the through holes 3211 formed in the heat conducting plate 320, a flowing channel can be provided for the liquid phase change energy storage material 220 between adjacent heat dissipation sections, which is beneficial for the liquid phase change energy storage material 220 to flow between the heat conducting plates 320, so that the temperature uniformity of the phase change energy storage material 220 is improved, and further, the stability of the phase change energy storage material 220 in the process of cooling the heat source management object 100 is improved.

Alternatively, the shape of the through hole 3211 includes a plurality of shapes, such as a circle, a square, a trapezoid, and other polygonal shapes. The shape and size of the through hole 3211 may be set according to actual needs. Optionally, the larger the through hole 3211 is, the more the fluidity of the liquid phase change energy storage material 220 between adjacent heat dissipation areas can be improved.

Optionally, the through hole 3211 is disposed between the heat dissipating end 321 and the first sidewall 213. In this way, the mobile phase of the liquid phase change energy storage material 220 can be further improved.

Fig. 6 is a schematic structural diagram of another heat conducting element provided by the embodiment of the disclosure. As shown in fig. 6, in some embodiments, a front end of the heat dissipating end 321 is formed with a first heat dissipating fin 3212, and the through hole 3211 is located between the first heat dissipating fin 3212 and the first side wall 213.

Optionally, a first heat dissipating fin 3212 is formed at the front end of the heat dissipating end 321, and the first heat dissipating fin 3212 is inserted into the phase change energy storage material 220. In this way, by the arrangement of the first heat dissipation fins 3212, the contact area between the heat dissipation end 321 and the phase change energy storage material 220 can be increased, so as to improve the heat dissipation efficiency of the heat dissipation end 321, that is, the heat conduction efficiency of the heat conducting element 300 to the phase change energy storage material 220 after absorbing the heat of the heat source management object 100 can be improved, and the cooling rate of the heat source management object 100 can be improved.

Optionally, the through hole 3211 is located between the first heat dissipating fin 3212 and the first sidewall 213. In this way, the liquid phase change energy storage material 220 can flow between the adjacent heat conduction plates 320, so that the heat of the first heat dissipation fins 3212 and the heat dissipation ends 321 can be timely and uniformly transferred and dissipated into the phase change energy storage material 220, and the cooling rate and the cooling effect on the heat source management object 100 are improved.

Optionally, each heat conducting plate 320 is provided with one or more through holes 3211. When a plurality of through holes 3211 are formed in each heat conducting plate 320, the fluidity of the liquid phase change energy storage material 220 can be further improved.

Optionally, the through hole 3211 is disposed proximate to the first sidewall 213. In this way, the fluidity of the liquid phase change energy storage material 220 near the first sidewall 213 can be further improved, and the uniformity of the temperature of the phase change energy storage material 220 after the heat exchange between the heat conduction plate 320 and the phase change energy storage material 220 is improved.

In some embodiments, the refrigerant circuit 400 includes a heat exchange tube segment 430. The heat exchange tube segment 430 is disposed through the phase change energy storage material 220 and is communicated between the input end 410 and the output end 420.

In the present embodiment, the heat exchange tube 430 is inserted into the phase change energy storage material 220, that is, is located outside and inside the shell 210. The low-temperature refrigerant flows into the input end 410 through the first interface 211, exchanges heat with the phase-change energy storage material 220 in the process of flowing through the heat exchange tube section 430, flows to the output end 420 after absorbing the refrigerant of the phase-change energy storage material 220, and flows out of the refrigerant circulation pipeline 400 through the second interface 212.

In some embodiments, the heat exchange tube segment 430 comprises a first tube segment 431 and a second tube segment 432. A first tube segment 431, in direct communication with the input end 410, is disposed adjacent the first sidewall 213. The second pipe segment 432, which is directly connected to the output end 420, is connected to the first pipe segment through an arc-shaped bent segment 433.

Optionally, a first tube segment 431 is disposed proximate to the first sidewall 213. Thus, the low-temperature refrigerant flows into the refrigerant circulation pipe 400 and exchanges heat with the phase change energy storage material 220 near the first sidewall 213. Because the phase-change energy storage material 220 close to the first sidewall 213 is in direct contact with the heat conducting plate 320, the stored heat is more, the low-temperature refrigerant firstly absorbs the heat of the phase-change energy storage material 220 close to the first sidewall 213, and the temperature difference between the two is larger, so that the low-temperature refrigerant can absorb more heat, and the cooling efficiency can be improved.

Optionally, the first tube segment 431 and the second tube segment 432 are connected by an arcuate bend 433. Therefore, the resistance of the refrigerant in the pipe section connecting the first pipe section 431 and the second pipe section 432 can be reduced, and meanwhile, the arrangement of the arc-shaped pipe section can reduce the flow dead zone, so that the heat exchange between the refrigerant and the phase change energy storage material 220 in the process of flowing through the arc-shaped bent section 433 is improved.

Fig. 7 is a schematic structural diagram of another heat source management system provided by the embodiment of the disclosure. Wherein, the arrow direction represents the flowing direction of the cooling medium. As shown in connection with fig. 7, in some embodiments, the surface of the heat exchange tube segment 430 is provided with a plurality of second heat dissipation fins 434.

The second heat dissipation fins 434 can increase the contact area between the heat exchange fins and the phase change energy storage material 220, and increase the cooling rate of the phase change energy storage material 220 by the heat exchange tube segments 430. Meanwhile, the refrigerant circulation pipeline 400 cools the heat source management object 100 through the phase change energy storage material 220, and does not directly cool the heat source management object 100, and the temperature change of the phase change energy storage material 220 in the phase change process is small, so that the condensation phenomenon caused by the overlarge temperature difference between the heat source management object 100 and the ambient temperature can be prevented.

In some embodiments, the plurality of heat conductive plates 320 are interleaved with the plurality of second heat dissipating fins 434.

Optionally, by arranging the plurality of heat conducting plates 320 and the plurality of second heat dissipating fins 434 in a staggered manner, the heat conducting plates 320 may dissipate heat of the absorbed heat source management object 100 to the phase change energy storage material 220, and the second heat dissipating fins 434 may absorb heat from the phase change energy storage material 220 to the heat exchanging pipe sections 430 of the refrigerant circulation pipeline 400, that is, the heat absorption and the heat dissipation of the phase change energy storage material 220 may be performed in a relatively staggered manner, which is beneficial to improving heat conduction between the refrigerant circulation pipeline 400 and the phase change energy storage material 220, and improving heat dissipating efficiency.

Note that the direction of the arrow in fig. 1, 3, 5, and 7 indicates the flow direction of the low-temperature refrigerant.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A heat source management system, comprising:

a heat source management object (100);

the energy storage device (200) comprises a shell (210) and a phase-change energy storage material (220) filled in the shell (210), wherein a first interface (211) for the entering of a cooling medium and a second interface (212) for the flowing of the cooling medium are arranged on the shell (210);

a heat conducting element (300) connected between the heat source management object (100) and the energy storage device (200) for transferring heat of the heat source management object (100) to the phase change energy storage material (220);

the refrigerant circulating pipeline (400) penetrates through the phase-change energy storage material (220), the input end (410) is connected with the first interface (211), the output end (420) is connected with the second interface (212), and low-temperature refrigerant flows from the input end (410) to the output end (420) so as to lead out heat in the phase-change energy storage material (220);

a regulating valve (500) arranged at the input end (410);

the liquid level monitoring device (600) is communicated with the shell (210) and is electrically connected with the regulating valve (500), the volume of the phase-change energy storage material (220) expands after absorbing heat and can drive the liquid level in the liquid level monitoring device (600) to rise, and the liquid level monitoring device (600) determines the volume change rate of the phase-change energy storage material (220) after absorbing heat according to the height change of the liquid level so as to control the opening degree of the regulating valve (500).

2. The heat source management system according to claim 1, wherein the liquid level monitoring device (600) comprises:

the liquid storage tank (610) is internally provided with a hollow inner cavity (611), the lower part of the hollow inner cavity (611) is filled with liquid, and the upper part of the hollow inner cavity (611) can be communicated to the inside of the shell (210);

the liquid pipe (620) is fixedly arranged at the bottom of the liquid storage tank (610), the top end of the liquid pipe (620) is blocked, and the bottom end of the liquid pipe (620) is provided with a communicating hole (621) so that liquid can flow into the liquid pipe (620);

the liquid level sensor is arranged in the liquid pipe (620) and used for detecting the liquid level change of the liquid flowing into the liquid pipe (620);

the controller is electrically connected with the liquid level sensor and the regulating valve;

the phase-change energy storage material (220) absorbs heat and then expands in volume, the liquid can be driven to flow into the liquid pipe (620) by volume expansion force, the volume change rate of the phase-change energy storage material (220) is determined by the controller according to the liquid level change value detected by the liquid level sensor, and the opening degree of the adjusting valve (500) is controlled under the condition that the volume change rate is larger than a preset value.

3. The heat source management system of claim 2, wherein the liquid storage tank (610) comprises:

the air inlet pipeline (612) is connected between the liquid storage tank (610) and the shell (210), and a first one-way valve (613) is arranged on the air inlet pipeline (612) so as to introduce gas into the liquid storage tank (610) after the phase change energy storage material (220) absorbs heat and expands in volume;

and the gas outlet pipeline (614) is connected between the liquid storage tank (610) and the shell (210), and the gas outlet pipeline (614) is provided with a second one-way valve (615) so that the phase change energy storage material (220) releases heat and shrinks in volume and then leads gas into the shell (210).

4. Heat source management system according to any of claims 1 to 3, wherein the housing (210) comprises a first side wall (213) connected with the heat conducting element (300),

the heat conducting element (300) comprises:

a heat pipe (310) in thermally conductive contact with the heat source management object (100);

the heat-conducting plates (320), the heat-dissipating ends (321) penetrate through the first side walls (213) and are arranged inside the phase-change energy storage material (220), and the heat-absorbing ends (312) are arranged on the heat pipes (310).

5. The heat source management system according to claim 4, wherein a heat dissipation region of the phase-change energy storage material (220) is formed between every two adjacent heat conduction plates (320),

the heat dissipation end (321) is provided with a through hole (3211) which penetrates through the heat dissipation end (321) and allows the liquid phase change energy storage material (220) to flow between the heat dissipation sections.

6. The heat source management system according to claim 5, wherein a front end of the heat dissipating end (321) is formed with a first heat dissipating fin (3212), and the through hole (3211) is located between the first heat dissipating fin (3212) and the first sidewall (213).

7. The heat source management system according to claim 4, wherein the refrigerant circulation line (400) comprises:

the heat exchange pipe section (430) penetrates through the phase change energy storage material (220) and is communicated between the input end (410) and the output end (420).

8. The heat source management system of claim 7, wherein the heat exchange tube segment (430) comprises:

a first segment (431) directly communicating with the input end (410) and arranged close to the first side wall (213);

the second pipe section (432) is directly communicated with the output end (420) and is communicated with the first pipe section through an arc-shaped bent section (433).

9. The heat source management system according to claim 7, wherein a surface of the heat exchange tube segment (430) is provided with a plurality of second heat fins (434).

10. The heat source management system of claim 9, wherein the plurality of thermally conductive plates (320) are interleaved with the plurality of second heat sink fins (434).

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