Household energy storage device

Abstract

The invention provides a household energy storage device. The household energy storage device comprises a battery assembly, a first liquid cooling plate, an energy storage conversion assembly, a second liquid cooling plate and a heat management assembly. The first liquid cooling plate is connected with the battery assembly, the first liquid cooling plate is used for exchanging heat with the battery assembly, the energy storage conversion assembly is connected with the battery assembly, and the battery assembly is located on one side of the energy storage conversion assembly. The second liquid cooling plate is connected with the energy storage conversion assembly and used for exchanging heat with the energy storage conversion assembly. The heat management assembly is connected with the first liquid cooling plate and the second liquid cooling plate, the first liquid cooling plate and / or the second liquid cooling plate are / is used for exchanging heat with the heat management assembly, the heat management assembly is located on one side of the energy storage conversion assembly, and the battery assembly, the energy storage conversion assembly and the heat management assembly are distributed in a partitioned mode.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to a household energy storage device. Background Art

[0002] As the functions of household energy storage devices increase, the internal circuits of household energy storage devices become more complicated, which also increases the risk of pipeline leakage and short circuit, and the safety level of household energy storage devices decreases accordingly. Summary of the invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0004] In view of this, in a first aspect, the present invention proposes a household energy storage device, comprising: a battery assembly; a first liquid cooling plate connected to the battery assembly, the first liquid cooling plate being used for heat exchange with the battery assembly; an energy storage conversion assembly connected to the battery assembly, the battery assembly being located on one side of the energy storage conversion assembly; a second liquid cooling plate connected to the energy storage conversion assembly, the second liquid cooling plate being used for heat exchange with the energy storage conversion assembly; a thermal management assembly connected to the first liquid cooling plate and the second liquid cooling plate, the first liquid cooling plate and / or the second liquid cooling plate being used for heat exchange with the thermal management assembly, the thermal management assembly being located on one side of the energy storage conversion assembly, and the battery assembly, the energy storage conversion assembly and the thermal management assembly being distributed in zones.

[0005] The first liquid cooling plate can exchange heat with the battery assembly to prevent the battery assembly from overheating when the battery assembly is running, thereby ensuring the stable operation of the battery assembly. The second liquid cooling plate can exchange heat with the energy storage conversion assembly, thereby reducing problems encountered when the energy storage conversion assembly is running. The first liquid cooling plate and the second liquid cooling plate can exchange heat with the thermal management assembly, so that the thermal management assembly can dissipate the heat of the first liquid cooling plate and the second liquid cooling plate into the environment.

[0006] During the operation of the battery assembly, if the ambient temperature is low, the first liquid cooling plate can also be heated by the thermal management component, so that the heat is transferred to the battery assembly through the first liquid cooling plate to increase the operating temperature of the battery assembly.

[0007] The thermal management components, energy storage conversion components and battery components are designed in blocks, so that multiple independent modular areas are formed in the household energy storage device. This can avoid the risk of leakage and short circuit in the pipelines of different components, improve the safety level of the household energy storage device, and help improve the operating stability of the household energy storage device. Moreover, by designing the household energy storage device in a modular way, the line layout between different components is more neat and less likely to interfere with each other, which can make the structure of the household energy storage device more compact and help reduce the volume of the household energy storage device. In addition, the independent design of the area can improve the protection safety level of the energy storage conversion component.

[0008] In addition, the household energy storage device in the above technical solution provided by the present invention may also have the following additional technical features:

[0009] In some technical solutions, optionally, the thermal management component and the energy storage conversion component are located on the same side of the battery component.

[0010] Both the battery assembly and the energy storage conversion assembly need to exchange heat with the thermal management assembly. As the demand for battery use increases, the volume of the battery assembly is also gradually increasing. The thermal management assembly and the energy storage conversion assembly are arranged on the same side of the battery assembly, which can reduce the distance between the thermal management assembly and the energy storage conversion assembly, and place the energy storage conversion assembly close to the thermal management assembly, thereby shortening the length of the pipeline between the thermal management assembly and the energy storage conversion assembly, reducing the damage rate of the pipeline, and reducing the difficulty of arranging the thermal management assembly and the energy storage conversion assembly.

[0011] In some technical schemes, optionally, the thermal management component includes: a condensing component; a compressor connected to the condensing component; a heat exchanger connected to the condensing component and the compressor, the condensing component, the compressor and the heat exchanger are located in the same circulation loop, and the first liquid cooling plate and the second liquid cooling plate exchange heat with the condensing component through the heat exchanger.

[0012] When the compressor is running, it can drive the heat exchanger to perform efficient heat exchange, thereby improving the heat exchange efficiency.

[0013] When the operating temperature of the battery assembly or energy storage conversion assembly is high, it is difficult to effectively dissipate the heat of the battery assembly or energy storage conversion assembly through the self-operation of the condensing assembly and the heat exchanger. When the compressor is running, it can drive the condensing assembly and the heat exchanger to achieve the function of rapid heat dissipation. Therefore, when the battery assembly or energy storage conversion assembly reaches a higher temperature, for example, when the battery cell temperature of the battery assembly is between 35°C and 55°C, the heat in the first liquid cold plate is transferred to the condensing assembly through the heat exchanger, and then dissipated through the heat exchanger. In the above manner, efficient heat dissipation of the battery assembly or energy storage conversion assembly can be achieved, ensuring the operational stability of the battery assembly and the energy storage conversion assembly.

[0014] Household energy storage devices are equipped with compressors, which can solve the problem of high-temperature heat dissipation of battery components and increase the life of battery components.

[0015] In some technical solutions, optionally, the compressor and the heat exchanger are located between the condensing assembly and the second liquid cooling plate.

[0016] The distance between the heat exchanger and the second liquid cooling plate is small, so the length of the pipeline between the heat exchanger and the second liquid cooling plate can be reduced, thereby reducing the damage rate of the pipeline. The compressor and the heat exchanger are located on the same side of the condensing assembly, so the compressor and the heat exchanger can be set close to each other, which can reduce the length of the pipeline between the compressor and the heat exchanger.

[0017] In some technical schemes, optionally, the thermal management component also includes: a circulation pipeline connected to the first liquid cooling plate, the second liquid cooling plate and the thermal management component; a valve body assembly connected to the circulation pipeline, the valve body assembly is used to control the connectivity between the first liquid cooling plate, the second liquid cooling plate and the thermal management component; an expansion kettle is arranged on the circulation pipeline.

[0018] An expansion kettle is also installed on the circulation pipeline. When the internal temperature of some circuits in the household energy storage device is high, the coolant in some circuits will expand due to the increase in temperature. At this time, part of the coolant can flow into the expansion kettle to play a buffering role. Moreover, the expansion kettle can also replenish the various circuits in the household energy storage device to ensure the operating stability of each circuit of the household energy storage device.

[0019] In some technical solutions, optionally, the household energy storage device also includes: a shell, the thermal management component is located in the shell, the shell is provided with an air outlet, the shell is provided with a bottom wall, the bottom wall is arranged opposite to the air outlet, and the distance between the expansion kettle and the air outlet is smaller than the distance between the expansion kettle and the bottom wall.

[0020] An air outlet is provided on the shell, and the airflow blown by the condensing assembly can be discharged from the shell through the air outlet. The distance between the expansion kettle and the air outlet is smaller than the distance between the expansion kettle and the bottom wall. Therefore, the expansion kettle is installed close to the air outlet. Installing the expansion kettle on the top of the shell is conducive to exhausting the water channel and preventing damage caused by thermal expansion and contraction of the pipeline.

[0021] In some technical solutions, optionally, the household energy storage device further includes: a mounting plate connected to the shell, and the first liquid cooling plate and / or the second liquid cooling plate are connected to the mounting plate.

[0022] A mounting plate is provided on the housing, and the mounting plate is used to mount the first liquid cooling plate and / or the second liquid cooling plate. As an independent component, the mounting plate can be processed and formed on the mounting plate to adapt to the mounting structure of the first liquid cooling plate and / or the second liquid cooling plate, thereby reducing the processing difficulty of the housing, facilitating the installation of the first liquid cooling plate and / or the second liquid cooling plate to the mounting plate, and improving the convenience of assembling the first liquid cooling plate and / or the second liquid cooling plate and the housing.

[0023] Exemplarily, a plurality of latching positions are formed on the mounting plate, and the first liquid cooling plate and / or the second liquid cooling plate are connected to the mounting plate via the latching positions.

[0024] In some technical solutions, optionally, the household energy storage device also includes: an air guide plate assembly connected to the shell, the air guide plate assembly covers the air outlet, and the air guide gap is provided on the air guide plate assembly, and the air guide gap is connected to the air outlet.

[0025] An air guide plate assembly is installed on the shell, and an air guide gap is formed between the air guide plate assembly and the shell, and the airflow in the shell can be discharged through the air guide gap.

[0026] The air guide assembly can cover the air outlet, and a gap is formed between the air guide assembly and the shell, which can ensure that the airflow can be discharged from the shell stably. In addition, by shielding the air outlet with the air guide assembly, impurities can be prevented from entering the shell through the air outlet, effectively preventing the components in the shell from being affected by the impurities, and ensuring the functional stability of the household energy storage device.

[0027] In some technical schemes, optionally, the air guide plate assembly includes: a first baffle, one side of the first baffle is connected to the shell, and the first baffle is distributed along the circumference of the air outlet; a second baffle is connected to the first baffle, the second baffle is used to cover the air outlet, and a gap is provided between the other side of the first baffle and the second baffle; a third baffle is connected to the second baffle, extends along the circumference of the second baffle, the third baffle is arranged opposite to the second baffle, and is distributed around the second baffle.

[0028] A first baffle is arranged along the circumference of the air outlet, and the first baffle protrudes from the top wall of the shell. The sunshade can prevent impurities from moving along the top wall of the shell to the air outlet, and plays a role in dust and water prevention. The second baffle is connected to the first baffle, and a gap is arranged between the second baffle and the first baffle, and the airflow can flow out through the gap between the first baffle and the second baffle.

[0029] The third baffle is distributed around the first baffle, and the third baffle is opposite to the first baffle, so the third baffle can block the gap between the second baffle and the first baffle, further preventing impurities from entering the air outlet through the gap.

[0030] The household energy storage device also includes: a windshield, a compressor and a heat exchanger are located on a first side of the windshield, and a condensing assembly is located on a second side of the windshield. The condensing assembly can drive the airflow to flow, and the flowing airflow passes through the condensing assembly and can take away the heat of the condensing assembly, thereby realizing the heat dissipation function of the condensing assembly. The windshield can block the airflow blowing toward the compressor and the heat exchanger.

[0031] The temperature of the airflow passing through the condensing component increases. At this time, the high-temperature airflow needs to be directly discharged from the household energy storage device. The wind shield's blocking effect on the airflow can prevent the high-temperature airflow from affecting the compressor and heat exchanger, and prevent the compressor and heat exchanger from increasing in temperature due to the influence of the airflow, thereby ensuring the operating stability of the compressor and heat exchanger.

[0032] The wind shield can guide the airflow, ensuring that the airflow can flow out of the household energy storage device smoothly and preventing high-temperature gas from accumulating in the household energy storage device.

[0033] In some technical solutions, optionally, the wind shield includes a wind shield portion and a bending portion, the wind shield portion extends along a first direction, the bending portion is bent in a direction away from the condensing component, and along the first direction, the compressor and the heat exchanger are arranged opposite to the bending portion.

[0034] The bent portion bends in a direction away from the condensing assembly compared to the wind shield portion, so the bent portion can guide the airflow, which is beneficial for the airflow to flow to the outside of the household energy storage device and improves the discharge stability of the high-temperature airflow.

[0035] In a possible application, the wind shielding portion and the bending portion are an integrally formed structure.

[0036] The wind shield extends in the first direction, so the airflow can flow out of the household energy storage device in the first direction, and the bending portion shields the compressor and the heat exchanger in the first direction. Liquid or dust will be blocked by the bending portion to prevent the liquid or dust from contacting the compressor and the heat exchanger, thereby protecting the compressor and the heat exchanger, ensuring the operating stability of the compressor and the heat exchanger, and reducing the damage rate of the compressor and the heat exchanger.

[0037] In a possible application, from the bottom to the top of the household energy storage device, the first portion of the wind shield first extends along a first direction, the second portion of the wind shield is bent away from the condensing assembly, and the third portion of the wind shield extends along the first direction.

[0038] Additional aspects and advantages of the present invention will become apparent from the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0040] Figure 1 An exploded view of a household energy storage device in an embodiment of the present invention is shown;

[0041] Figure 2 One of the structural schematic diagrams of a household energy storage device in an embodiment of the present invention is shown;

[0042] Figure 3 A partial structural schematic diagram of a household energy storage device in an embodiment of the present invention is shown;

[0043] Figure 4 One of the structural schematic diagrams of the thermal management component in the embodiment of the present invention is shown;

[0044] Figure 5 A second structural schematic diagram of a thermal management component in an embodiment of the present invention is shown;

[0045] Figure 6The second structural schematic diagram of the household energy storage device in an embodiment of the present invention is shown;

[0046] Figure 7 Shows Figure 6 Cross-section view in the AA direction;

[0047] Figure 8 Shows Figure 6 Cross-section along the middle BB direction;

[0048] Fig. 9 Shows Figure 6 Cross-section in the CC direction;

[0049] Fig.10 A schematic diagram of the internal structure of a household energy storage device in an embodiment of the present invention is shown;

[0050] Fig.11 The third structural schematic diagram of the household energy storage device in the embodiment of the present invention is shown;

[0051] Fig.12 A schematic structural diagram of an air guide plate assembly in an embodiment of the present invention is shown;

[0052] Fig.13 A schematic block diagram of a household energy storage device in an embodiment of the present invention is shown.

[0053] Reference numerals:

[0054] 100 battery assembly, 200 first liquid cooling plate, 300 energy storage conversion assembly, 400 second liquid cooling plate, 500 thermal management assembly, 510 condensation assembly, 511 water tank, 512 condenser, 513 fan assembly, 520 compressor, 530 heat exchanger, 540 wind shield, 541 wind shield, 542 bending part, 610 circulation pipeline, 611 capillary tube, 620 valve body assembly, 630 expansion kettle, 700 shell, 710 air outlet, 72 0 bottom wall, 730 mounting plate, 800 air guide plate assembly, 810 first baffle, 820 second baffle, 830 third baffle, 840 air guide gap, 910 three-way valve, 911 fifth interface, 912 sixth interface, 913 seventh interface, 920 three-way interface, 930 electronic expansion valve, 940 four-way valve, 941 first interface, 942 second interface, 943 third interface, 944 fourth interface, 950 first pump body, 960 second pump body. DETAILED DESCRIPTION

[0055] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0056] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0057] Refer to the following Figures 1 to 13 A household energy storage device provided according to some embodiments of the present invention is described.

[0058] Combination Figure 1 , Figure 2 and Figure 3 As shown, in an embodiment of the present invention, a household energy storage device is proposed, including: a battery assembly 100, a first liquid cooling plate 200, an energy storage conversion assembly 300, a second liquid cooling plate 400 and a thermal management assembly 500. The first liquid cooling plate 200 is connected to the battery assembly 100, and the first liquid cooling plate 200 is used for heat exchange with the battery assembly 100. The energy storage conversion assembly 300 is connected to the battery assembly 100, and the battery assembly 100 is located on one side of the energy storage conversion assembly 300. The second liquid cooling plate 400 is connected to the energy storage conversion assembly 300, and the second liquid cooling plate 400 is used for heat exchange with the energy storage conversion assembly 300. The thermal management component 500 is connected to the first liquid cooling plate 200 and the second liquid cooling plate 400. The first liquid cooling plate 200 and / or the second liquid cooling plate 400 are used for heat exchange with the thermal management component 500. The thermal management component 500 is located on one side of the energy storage conversion component 300. The battery component 100, the energy storage conversion component 300 and the thermal management component 500 are distributed in partitions.

[0059] The first liquid cooling plate 200 can exchange heat with the battery assembly 100, and when the battery assembly 100 is in operation, the temperature of the battery assembly 100 is prevented from being too high, thereby ensuring the stable operation of the battery assembly 100. The second liquid cooling plate 400 can exchange heat with the energy storage conversion assembly 300, thereby reducing problems during the operation of the energy storage conversion assembly 300. The first liquid cooling plate 200 and the second liquid cooling plate 400 can exchange heat with the thermal management assembly 500, so that the thermal management assembly 500 can dissipate the heat of the first liquid cooling plate 200 and the second liquid cooling plate 400 to the environment.

[0060] During the operation of the battery assembly 100 , if the ambient temperature is low, the first liquid cooling plate 200 of the battery assembly 100 may also be heated by the thermal management assembly 500 , thereby transferring heat to the battery assembly 100 through the first liquid cooling plate 200 to increase the operating temperature of the battery assembly 100 .

[0061] The thermal management component 500, the energy storage conversion component 300 and the battery component 100 are designed in blocks, so that multiple independent modular areas are formed in the household energy storage device. This can avoid the risk of leakage and short circuit in the pipelines of different components, improve the safety level of the household energy storage device, and help improve the operating stability of the household energy storage device. Moreover, by modularizing the household energy storage device, the line layout between different components is more neat and less likely to interfere with each other, which can make the structure of the household energy storage device more compact and help reduce the volume of the household energy storage device. In addition, the independent regional design can improve the protection safety level of the energy storage conversion component 300.

[0062] The energy storage conversion assembly 300 in this embodiment is an energy storage converter.

[0063] The household energy storage device in this embodiment is a whole, which is convenient for its transportation and installation, and is also more conducive to later modular development.

[0064] Combination Figure 1 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, in some embodiments, optionally, the thermal management assembly 500 and the energy storage conversion assembly 300 are located on the same side of the battery assembly 100 .

[0065] Both the battery assembly 100 and the energy storage conversion assembly 300 need to exchange heat with the thermal management assembly 500. As the demand for battery use increases, the volume of the battery assembly 100 is gradually increasing. The thermal management assembly 500 and the energy storage conversion assembly 300 are arranged on the same side of the battery assembly 100, so that the distance between the thermal management assembly 500 and the energy storage conversion assembly 300 can be reduced, and the energy storage conversion assembly 300 can be placed close to the thermal management assembly 500, thereby shortening the length of the pipeline between the thermal management assembly 500 and the energy storage conversion assembly 300, reducing the damage rate of the pipeline, and reducing the difficulty of arranging the thermal management assembly 500 and the energy storage conversion assembly 300.

[0066] like Figure 5 As shown, in some embodiments, optionally, the thermal management component 500 includes: a condensing component 510, a compressor 520 and a heat exchanger 530, the compressor 520 is connected to the condensing component 510, the heat exchanger 530 is connected to the condensing component 510 and the compressor 520, the condensing component 510, the compressor 520 and the heat exchanger 530 are located in the same circulation loop, and the first liquid cooling plate 200 and the second liquid cooling plate 400 exchange heat with the condensing component 510 through the heat exchanger 530.

[0067] When the compressor 520 is running, the compressor 520 can drive the heat exchanger 530 to perform efficient heat exchange, thereby improving the heat exchange efficiency.

[0068] When the operating temperature of the battery assembly 100 or the energy storage conversion assembly 300 is high, it is difficult to effectively dissipate the heat of the battery assembly 100 or the energy storage conversion assembly 300 through the self-operation of the condensing assembly 510 and the heat exchanger 530, while the compressor 520 can drive the condensing assembly 510 and the heat exchanger 530 to achieve the function of rapid heat dissipation when it is running. Therefore, when the battery assembly 100 or the energy storage conversion assembly 300 reaches a higher temperature, for example, when the battery core temperature of the battery assembly 100 is between 35°C and 55°C, the heat in the first liquid cold plate 200 is transferred to the condensing assembly 510 through the heat exchanger 530, and then dissipated through the heat exchanger 530. In the above manner, efficient heat dissipation of the battery assembly 100 or the energy storage conversion assembly 300 can be achieved, and the operating stability of the battery assembly 100 and the energy storage conversion assembly 300 can be ensured.

[0069] The household energy storage device is provided with a compressor 520 , which can solve the problem of high-temperature heat dissipation of the battery assembly 100 and increase the life of the battery assembly 100 .

[0070] like Figure 5 As shown, in some embodiments, optionally, the compressor 520 and the heat exchanger 530 are located between the condensing assembly 510 and the second liquid cold plate 400 .

[0071] The distance between the heat exchanger 530 and the second liquid cooling plate 400 is small, so that the length of the pipeline between the heat exchanger 530 and the second liquid cooling plate 400 can be reduced, thereby reducing the damage rate of the pipeline. The compressor 520 and the heat exchanger 530 are located on the same side of the condensing assembly 510, so that the compressor 520 and the heat exchanger 530 can be arranged close to each other, which can reduce the length of the pipeline between the compressor 520 and the heat exchanger 530.

[0072] Combination Figure 5 , Fig.10 and Fig.12 As shown, in some embodiments, optionally, the thermal management component 500 also includes: a circulation pipeline 610, a valve body assembly 620 and an expansion kettle 630, the circulation pipeline 610 is connected to the first liquid cooling plate 200, the second liquid cooling plate 400 and the thermal management component 500, the valve body assembly 620 is connected to the circulation pipeline 610, the valve body assembly 620 is used to control the connection state between the first liquid cooling plate 200, the second liquid cooling plate 400 and the thermal management component 500, and the expansion kettle 630 is arranged on the circulation pipeline 610.

[0073] An expansion kettle 630 is also installed on the circulation pipeline 610. When the internal temperature of some circuits in the household energy storage device is high, the coolant in some circuits will expand due to the increase in temperature. At this time, part of the coolant can flow into the expansion kettle 630 to play a buffering role. Moreover, the expansion kettle 630 can also replenish the various circuits in the household energy storage device to ensure the operating stability of each circuit of the household energy storage device.

[0074] The household energy storage device further includes: a first pump body 950 and a second pump body 960, the valve body assembly 620 includes a three-way valve 910 and a four-way valve 940, the first pump body 950 is used to drive the coolant to circulate between the circulation pipeline 610 and the second liquid cooling plate 400, and the second pump body 960 is used to drive the coolant to circulate between the circulation pipeline 610 and the first liquid cooling plate 200. The three-way valve 910 and the four-way valve 940 are used to control the connection state of the circulation pipeline 610. A portion of the circulation pipeline 610 is a capillary tube 611.

[0075] Combination Figure 5 , Fig.10 and Fig.12 As shown, in some embodiments, optionally, the household energy storage device further includes: a shell 700, the thermal management component 500 is located in the shell 700, the shell 700 is provided with an air outlet 710, the shell 700 is provided with a bottom wall 720, the bottom wall 720 is arranged opposite to the air outlet 710, and the distance between the expansion kettle 630 and the air outlet 710 is smaller than the distance between the expansion kettle 630 and the bottom wall 720.

[0076] The housing 700 is provided with an air outlet 710, and the air flow blown by the condensation assembly 510 can be discharged from the housing 700 through the air outlet 710. The distance between the expansion kettle 630 and the air outlet 710 is smaller than the distance between the expansion kettle 630 and the bottom wall 720, so the expansion kettle 630 is installed close to the air outlet 710. Installing the expansion kettle 630 on the top of the housing 700 is conducive to exhausting the water channel and preventing damage caused by thermal expansion and contraction of the pipeline.

[0077] like Fig.11 As shown, in some embodiments, optionally, the household energy storage device further includes: a mounting plate 730 , the mounting plate 730 is connected to the housing 700 , and the first liquid cooling plate 200 and / or the second liquid cooling plate 400 is connected to the mounting plate 730 .

[0078] The housing 700 is provided with a mounting plate 730, which is used to mount the first liquid cooling plate 200 and / or the second liquid cooling plate 400. The mounting plate 730 is an independent component, and can be processed and formed on the mounting plate 730 to adapt to the mounting structure of the first liquid cooling plate 200 and / or the second liquid cooling plate 400, thereby reducing the processing difficulty of the housing 700, facilitating the installation of the first liquid cooling plate 200 and / or the second liquid cooling plate 400 to the mounting plate 730, and improving the assembly convenience of the first liquid cooling plate 200 and / or the second liquid cooling plate 400 and the housing 700.

[0079] Exemplarily, a plurality of latching positions are formed on the mounting plate 730 , and the first liquid cooling plate 200 and / or the second liquid cooling plate 400 are connected to the mounting plate 730 via the latching positions.

[0080] Combination Fig.10 , Fig.11 and Fig.12 As shown, in some embodiments, optionally, the household energy storage device also includes: an air guide plate assembly 800, the air guide plate assembly 800 is connected to the shell 700, the air guide plate assembly 800 covers the air outlet 710, and the air guide gap 840 is provided on the air guide plate assembly 800, and the air guide gap 840 is connected to the air outlet.

[0081] An air guide plate assembly 800 is installed on the housing 700 , and an air guide gap 840 is formed between the air guide plate assembly 800 and the housing 700 . The airflow in the housing 700 can be discharged through the air guide gap 840 .

[0082] The air guide assembly 800 can cover the air outlet 710, and a gap is formed between the air guide assembly 800 and the housing 700, which can ensure that the airflow can be stably discharged from the housing 700. Moreover, by shielding the air outlet 710 with the air guide assembly 800, impurities can be prevented from entering the housing 700 through the air outlet 710, effectively preventing the components in the housing 700 from being affected by the impurities, and ensuring the functional stability of the household energy storage device.

[0083] like Fig.12 As shown, in some embodiments, optionally, the air guide plate assembly 800 includes: a first baffle 810, a second baffle 820 and a third baffle 830, one side of the first baffle 810 is connected to the shell 700, the first baffle 810 is distributed along the circumference of the air outlet 710, the second baffle 820 is connected to the first baffle 810, the second baffle 820 is used to cover the air outlet 710, and a gap is provided between the other side of the first baffle 810 and the second baffle 820, the third baffle 830 is connected to the second baffle 820, extends along the circumference of the second baffle 820, and the third baffle 830 is arranged opposite to the second baffle 820 and is distributed around the second baffle 820.

[0084] A first baffle 810 is provided along the circumference of the air outlet 710. The first baffle 810 protrudes from the top wall of the housing 700. The sunshade can prevent impurities from moving along the top wall of the housing 700 to the air outlet 710, thereby playing a role in dust and water prevention. The second baffle 820 is connected to the first baffle 810. A gap is provided between the second baffle 820 and the first baffle 810, and airflow can flow out from the gap between the first baffle 810 and the second baffle 820.

[0085] The third baffle 830 is distributed around the first baffle 810 , and the third baffle 830 and the first baffle 810 are opposite, so the third baffle 830 can block the gap between the second baffle 820 and the first baffle 810 , further preventing impurities from entering the air outlet 710 through the gap.

[0086] Combination Figure 1 and Figure 4 As shown, in some embodiments, optionally, the household energy storage device further includes: a windshield 540, the compressor 520 and the heat exchanger 530 are located on a first side of the windshield 540, and the condensing assembly 510 is located on a second side of the windshield 540. The condensing assembly 510 can drive the airflow to flow, and the flowing airflow passes through the condensing assembly 510, which can take away the heat of the condensing assembly 510, thereby realizing the heat dissipation function of the condensing assembly 510. The windshield 540 can block the airflow blowing toward the compressor 520 and the heat exchanger 530.

[0087] The temperature of the air flow passing through the condensing component 510 increases. At this time, the air flow with a higher temperature needs to be discharged directly from the household energy storage device. The blocking effect of the wind shield 540 on the air flow can prevent the high-temperature air flow from affecting the compressor 520 and the heat exchanger 530, prevent the compressor 520 and the heat exchanger 530 from increasing in temperature due to the influence of the air flow, and ensure the operating stability of the compressor 520 and the heat exchanger 530.

[0088] The wind shield 540 can guide the airflow, ensuring that the airflow can flow out of the household energy storage device smoothly and preventing high-temperature gas from accumulating in the household energy storage device.

[0089] Combination Figure 1 and Figure 4 As shown, in some embodiments, optionally, the windshield 540 includes a windshield portion 541 and a bending portion 542, and the windshield portion 541 extends along the first direction ( Figure 5 The middle arrow points to the first direction), the bending portion 542 bends in a direction away from the condensing assembly 510, and along the first direction, the compressor 520 and the heat exchanger 530 are arranged opposite to the bending portion 542.

[0090] The bending portion 542 is bent in a direction away from the condensing assembly 510 compared to the wind shielding portion 541, so the bending portion 542 can guide the airflow, which is beneficial for the airflow to flow to the outside of the household energy storage device and improves the discharge stability of the high-temperature airflow.

[0091] In a possible application, the wind shielding portion 541 and the bending portion 542 are an integrally formed structure.

[0092] The wind shield 541 extends along the first direction, so the airflow can flow out of the household energy storage device along the first direction, and along the first direction, the bent portion 542 shields the compressor 520 and the heat exchanger 530. Liquid or dust will be blocked by the bent portion 542 to prevent the liquid or dust from contacting the compressor 520 and the heat exchanger 530, thereby protecting the compressor 520 and the heat exchanger 530, ensuring the operating stability of the compressor 520 and the heat exchanger 530, and reducing the damage rate of the compressor 520 and the heat exchanger 530.

[0093] In one possible application, from the bottom to the top of the household energy storage device, the first portion of the wind shield 540 first extends along the first direction, the second portion of the wind shield 540 bends away from the condensing assembly 510, and the third portion of the wind shield 540 extends along the first direction.

[0094] In some embodiments, optionally, the condensation assembly 510 includes: a water tank 511, a condenser 512 and a fan assembly 513, the water tank 511 is connected to the first liquid cooling plate 200 and the second liquid cooling plate 400, the condenser 512 is connected to the heat exchanger 530, and the fan assembly 513 is connected to the condenser 512, and the fan assembly 513 is used to dissipate heat from the condenser 512.

[0095] The heat of the first liquid cooling plate 200 and the second liquid cooling plate 400 is transferred to the water tank 511 , and the water tank 511 can dissipate the heat to the outside.

[0096] The heat of the first liquid cooling plate 200 and the second liquid cooling plate 400 can also be transferred to the condenser 512 through the heat exchanger 530 , and the fan assembly 513 can dissipate heat for the condenser 512 .

[0097] The water tank 511 and the condenser 512 can both dissipate heat from the first liquid cooling plate 200 and the second liquid cooling plate 400 , which is beneficial to improving the heat dissipation effect.

[0098] Combination Figure 5 and Fig.13As shown, the household energy storage device includes: a water tank 511, a three-way valve 910, a three-way interface 920, a compressor 520, a condenser 512, a fan assembly 513, an electronic expansion valve 930, a heat exchanger 530, an expansion kettle 630, a battery assembly 100, a four-way valve 940, a first pump body 950, a second pump body 960, an energy storage conversion assembly 300 and a circulation pipeline 610. The four-way valve 940 is provided with a first interface 941, a second interface 942, a third interface 943 and a fourth interface 944, and the three-way valve 910 is provided with a fifth interface 911, a sixth interface 912 and a seventh interface 913.

[0099] The first interface 941 is connected to the heat exchanger 530, the second interface 942 is connected to the second pump body 960, the third interface 943 is connected to the seventh interface 913, the fourth interface 944 is connected to the battery assembly 100, the two ends of the first pump body 950 are respectively connected to the expansion kettle 630 and the battery assembly 100, a group of heat exchange interfaces on the heat exchanger 530 are respectively connected to the expansion kettle 630 and the first interface 941, another group of heat exchange interfaces on the heat exchanger 530 are respectively connected to the compressor 520 and the electronic expansion valve 930, and the two ends of the condenser 512 are respectively connected to the compressor 520 and the electronic expansion valve 930.

[0100] The first interface of the three-way interface 920 is connected to the water tank 511 , the second interface of the three-way interface 920 is connected to the sixth interface 912 , and the third interface of the three-way interface 920 is connected to the energy storage conversion assembly 300 . The fifth interface 911 is connected to the water tank 511 .

[0101] In the present invention, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0102] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0103] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A household energy storage device, characterized in that: include: Battery components; A first liquid cooling plate connected to the battery assembly, the first liquid cooling plate being used for heat exchange with the battery assembly; An energy storage conversion assembly is connected to the battery assembly, and the battery assembly is located on one side of the energy storage conversion assembly; A second liquid cooling plate connected to the energy storage conversion assembly, the second liquid cooling plate being used for heat exchange with the energy storage conversion assembly; A thermal management component is connected to the first liquid cooling plate and the second liquid cooling plate. The first liquid cooling plate and / or the second liquid cooling plate are used for heat exchange with the thermal management component. The thermal management component is located on one side of the energy storage conversion component. The battery component, the energy storage conversion component and the thermal management component are distributed in partitions.

2. The household energy storage device according to claim 1, characterized in that: The thermal management component and the energy storage conversion component are located on the same side of the battery component.

3. The household energy storage device according to claim 1 or 2, characterized in that: The thermal management component comprises: Condensation components; A compressor connected to the condensing assembly; A heat exchanger is connected to the condensing assembly and the compressor. The condensing assembly, the compressor and the heat exchanger are located in the same circulation loop. The first liquid cooling plate and the second liquid cooling plate exchange heat with the condensing assembly through the heat exchanger.

4. The household energy storage device according to claim 3, characterized in that: The compressor and the heat exchanger are located between the condensing assembly and the second liquid cooling plate.

5. The household energy storage device according to claim 3, characterized in that: The thermal management assembly further comprises: a circulation pipeline connected to the first liquid cooling plate, the second liquid cooling plate and the thermal management component; a valve body assembly connected to the circulation pipeline, the valve body assembly being used to control the communication state between the first liquid cooling plate, the second liquid cooling plate and the thermal management assembly; The expansion kettle is arranged on the circulation pipeline.

6. The household energy storage device according to claim 5, characterized in that: The household energy storage device also includes: The shell has an air outlet, and the shell has a bottom wall, the bottom wall is arranged opposite to the air outlet, and the distance between the expansion kettle and the air outlet is smaller than the distance between the expansion kettle and the bottom wall.

7. The household energy storage device according to claim 6, characterized in that: The household energy storage device also includes: A mounting plate is connected to the shell, and the first liquid cooling plate and / or the second liquid cooling plate are connected to the mounting plate.

8. The household energy storage device according to claim 6, characterized in that: The household energy storage device also includes: An air guide plate assembly is connected to the shell, the air guide plate assembly covers the air outlet, and an air guide gap is provided on the air guide plate assembly, and the air guide gap is communicated with the air outlet.

9. The household energy storage device according to claim 8, characterized in that: The air deflector assembly comprises: A first baffle, one side of which is connected to the housing, and the first baffle is distributed along the circumference of the air outlet; a second baffle connected to the first baffle, the second baffle being used to cover the air outlet, and a gap being provided between the other side of the first baffle and the second baffle; The third baffle is connected to the second baffle and extends along the circumference of the second baffle. The third baffle is arranged opposite to the second baffle and is distributed around the second baffle.

10. The household energy storage device according to claim 3, characterized in that: The household energy storage device also includes: The wind shield is provided, the compressor and the heat exchanger are located on a first side of the wind shield, and the condensing assembly is located on a second side of the wind shield.

11. The household energy storage device according to claim 10, characterized in that: The windshield includes a windshield portion and a bending portion, the windshield portion extends along a first direction, the bending portion is bent in a direction away from the condensing component, and along the first direction, the compressor and the heat exchanger are arranged opposite to the bending portion.

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