CN219286496U - Thermoelectric coupling energy storage module and heat pump system - Google Patents

Abstract

The utility model discloses a thermoelectric coupling energy storage module and a heat pump system, wherein the thermoelectric coupling energy storage module comprises: the shell is provided with a first heat exchange port and a first heat exchange port; a phase change material filled in the housing; the battery core is buried in the phase change material; and the first heat exchange pipeline is buried in the phase change material and is respectively communicated with the first heat exchange port and the second heat exchange port of the shell. The technical scheme of the utility model can improve the safety.

Description

Thermoelectric coupling energy storage module and heat pump system

Technical Field

The utility model relates to the technical field of energy storage, in particular to a thermoelectric coupling energy storage module and a heat pump system.

Background

At present, due to increasing household energy consumption demands, households generally adopt an energy storage scheme of a high-capacity lithium battery, but the larger the capacity of the lithium battery is, the higher the probability of local cell thermal runaway is, and the higher the risk after thermal runaway is.

Disclosure of Invention

The utility model mainly aims to provide a thermoelectric coupling energy storage module, which aims to solve the problem of low safety of the existing household energy storage scheme.

In order to achieve the above object, the present utility model provides a thermoelectric coupling energy storage module, which includes:

The shell is provided with a first heat exchange port and a first heat exchange port;

a phase change material filled in the housing;

the battery core is buried in the phase change material; the method comprises the steps of,

the first heat exchange pipeline is buried in the phase change material and is respectively communicated with the first heat exchange port and the second heat exchange port of the shell.

Optionally, the number of the battery cells is M, a plurality of the battery cells are connected in parallel to form a battery cell group, and M is not less than 2.

Optionally, the plurality of cells in the cell group are arranged at intervals along the first preset direction.

Optionally, the number of the battery cell groups is N, the plurality of battery cell groups are arranged at intervals along a second preset direction, the second preset direction is perpendicular to the first preset direction, and N is not less than 2.

Optionally, the housing has opposed first and second faces;

the battery cell component comprises a first battery cell group and a second battery cell group, wherein the positive electrode of each battery cell in the first battery cell group faces the first surface of the shell respectively, and the positive electrode of each battery cell in the second battery cell group faces the second surface of the shell respectively;

the number of the first battery cell groups and the second battery cell groups is at least one, and the first battery cell groups and the second battery cell groups are alternately arranged along a second preset direction to form a battery cell array.

Optionally, each of the cell groups is connected in series.

Optionally, the plurality of the battery cell groups include a 1 st battery cell group and an nth battery cell group in a second preset direction;

the shell is provided with an anode interface and a cathode interface, the anode interface is connected with the anode of any one of the cells in the 1 st cell group, and the cathode interface is connected with the cathode of any one of the cells in the N cell group.

Optionally, the first heat exchange pipeline includes a plurality of heat exchange tube sections that end to end in proper order, and a plurality of heat exchange tube sections are along second default direction interval arrangement, and the clamp is equipped with at least one between the arbitrary adjacent two heat exchange tube sections the electricity core group.

Optionally, the phase change material is an inorganic phase change material.

The utility model also proposes a heat pump system comprising:

the circulating system is provided with a first heat exchange port and a second heat exchange port;

the thermoelectric coupling energy storage module is respectively communicated with the first heat exchange port and the second heat exchange port of the circulating system.

Optionally, the circulation system includes:

a compression mechanism having an inlet and an outlet;

the first heat exchanger is provided with a first port and a second port;

And the valve body assembly is respectively communicated with the inlet and the outlet of the compression mechanism, the first port and the second port of the first heat exchanger and the first heat exchange port of the thermoelectric coupling energy storage module.

Optionally, the valve body assembly includes:

a first multi-way valve having a first port and a second port, the first port of the first multi-way valve being in communication with the outlet of the compression mechanism, the second port of the first multi-way valve being in communication with the first port of the first heat exchanger;

the second multi-way valve is provided with a first port and a second port, the first port of the second multi-way valve is communicated with the first heat exchange port of the thermoelectric coupling energy storage module, and the second port of the second multi-way valve is communicated with the inlet of the compression mechanism;

the first throttling device is provided with a first port and a second port, the first port of the first throttling device is communicated with the second port of the first heat exchanger, and the second port of the first throttling device is communicated with the second heat exchange port of the thermoelectric coupling energy storage module.

Optionally, the first multi-way valve further has a third port, the third port of the first multi-way valve and the inlet of the compression mechanism;

The second multi-way valve also has a third port that communicates with the outlet of the compression mechanism.

Optionally, the circulation system further comprises:

the second heat exchanger is provided with a first port and a second port;

the valve body assembly is also respectively communicated with the first port and the second port of the second heat exchanger.

Optionally, the first multi-way valve further has a fourth port, and the fourth port of the first multi-way valve is communicated with the second port of the second heat exchanger;

the valve body assembly further includes:

the second throttling device is provided with a first port and a second port, the first port of the second throttling device is communicated with the second port of the first throttling device, and the second port of the second throttling device is communicated with the second heat exchange port of the thermoelectric coupling energy storage module;

the third throttling device is provided with a first port and a second port, the first port of the third throttling device is communicated with the second port of the first throttling device, and the second port of the third throttling device is communicated with the first port of the second heat exchanger.

Optionally, the second multi-way valve is further provided with a fourth port, and the fourth port of the second multi-way valve is plugged;

Or the fourth port of the second multi-way valve is communicated with the second port of the second multi-way valve through a capillary tube.

Optionally, the heat pump system further comprises:

the main control unit is connected with the circulating system and is used for controlling the circulating system to work according to the received mode control signal.

Optionally, the thermoelectric coupling energy storage module further comprises:

the third heat exchanger is provided with a second heat exchange pipeline and a third heat exchange pipeline which are configured to exchange heat mutually, two ports of the second heat exchange pipeline are respectively communicated with the first heat exchange port and the second heat exchange port of the shell of the thermoelectric coupling energy storage module, and two ports of the third heat exchange pipeline are respectively communicated with the first heat exchange port and the second heat exchange port of the circulating system.

Optionally, the thermoelectric coupling energy storage module further comprises:

and the circulating pump is arranged between any one port of the second heat exchange pipeline and the shell of the thermoelectric coupling energy storage module.

According to the technical scheme, the phase change material is filled in the shell, and the battery core and the heat exchange pipeline are buried in the phase change material, so that the heat exchange pipeline can be connected with heat exchange fluid with preset temperature to perform heat control on the battery core. According to the thermoelectric coupling energy storage module, the electric core thermal control function based on the phase change material is integrated on the basis of the electric storage function, compared with an energy storage scheme of single electric storage, the electric core capacity is smaller, the cost is lower, the safety is better, the problem that the safety of the existing household energy storage scheme is lower is solved, and meanwhile, compared with a sensible heat energy storage scheme adopting a water tank, the electric core thermal control energy storage module is larger in energy storage density, smaller in size and convenient for household use. In addition, the phase change material absorbs heat and controls the temperature in the charging/discharging process of the battery cell so as to prolong the time of thermal runaway of the battery cell and reduce the probability of the thermal runaway of the battery cell at the same time, and the phase change material can also effectively prevent flame when the battery cell has an internal short circuit and other anomalies, so that the use safety of the battery cell is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic block diagram of a thermoelectric coupling energy storage module according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of an embodiment of a thermoelectric coupled energy storage module of the present utility model;

FIG. 3 is a schematic block diagram of an embodiment of a heat pump system according to the present utility model;

FIG. 4 is a schematic diagram of a water circuit of a cold storage cycle in an embodiment of a heat pump system according to the present utility model;

FIG. 5 is a schematic diagram of a thermal cycle water circuit in an embodiment of a heat pump system according to the present utility model;

FIG. 6 is a schematic diagram of a water circuit of a refrigeration cycle in an embodiment of a heat pump system according to the present utility model;

FIG. 7 is a schematic diagram of a water circuit of a heating cycle in an embodiment of a heat pump system according to the present utility model;

FIG. 8 is a schematic diagram of a water circuit of a refrigeration chiller cycle in an embodiment of a heat pump system according to the present utility model;

FIG. 9 is a schematic diagram of a water circuit of a heating and heat-extracting cycle in an embodiment of a heat pump system according to the present utility model;

FIG. 10 is a schematic diagram of a water circuit of a refrigeration and cold accumulation cycle in an embodiment of a heat pump system according to the present utility model;

fig. 11 is a schematic diagram of a water path of a heating and heat storage cycle in an embodiment of a heat pump system according to the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a thermoelectric coupling energy storage module which can be used for a heat pump system.

Referring to fig. 1 to 2, in an embodiment, the thermoelectric coupling energy storage module 100 includes:

a housing 110 provided with a first heat exchange port and a first heat exchange port;

a phase change material 120 filled in the housing 110;

a cell 130 embedded in the phase change material 120; the method comprises the steps of,

the first heat exchange pipeline 140 is buried in the phase change material 120 and is respectively communicated with the first heat exchange port and the second heat exchange port of the shell.

In this embodiment, the housing 110 may have a nearly prismatic shape or a nearly cylindrical shape or an irregular cylindrical shape, which is not limited herein; in the example shown in fig. 2, the housing 110 has a rectangular parallelepiped shape. The housing 110 may be made of an organic thermal insulation material or an inorganic thermal insulation material, so as to reduce heat loss of the phase change material 120 by utilizing the characteristic of small thermal coefficient, and thus, long-term practicality of the phase change material 120 can be effectively ensured.

The phase change material 120 may be an organic phase change material 120 or an inorganic phase change material 120, or may be divided into a hydrated salt phase change material 120 and a waxy phase change material 120. The phase change material 120 may absorb or release a large amount of latent heat, also known as phase change latent heat, during the phase change process itself to transform the physical properties. The housing 110 may have a cavity formed therein, and the phase change material 120 may be filled in the cavity of the housing 110.

The battery cell 130 may be a battery cell 130 portion of a lithium ion battery, sodium ion plasma battery; the lithium battery may be a lithium iron phosphate battery, a ternary lithium battery, a lithium titanate battery or a lithium cobalt oxide battery, which is not limited herein. The battery cell 130 may have an anode and a cathode, and when the anode and the cathode are respectively connected with an anode output end and a cathode output end of the charging circuit, the accessed direct current is stored in a chemical energy form, so as to realize a charging process of the battery cell 130; the positive and negative electrodes may output stored chemical energy in the form of direct current when connected to the positive and negative input terminals of the load circuit, respectively, to thereby implement a discharging process of the battery cell 130. The cell 130 may be partially or fully embedded within the phase change material 120 to provide sufficient contact heat exchange with the phase change material 120.

It can be understood that the potential for thermal runaway exists in the battery cell 130 during the charging process and the discharging process, and the larger the capacity of the battery cell 130, the higher the probability of occurrence of thermal runaway of the local battery cell 130, and the higher the risk after thermal runaway, while the existing household energy storage scheme adopts the battery cell 130 with large capacity, but in most practical use cases, a large amount of electric energy stored in the battery cell 130 is not completely consumed, so that the risk of thermal runaway in use is increased.

The first heat exchange line 140 may be partially or entirely embedded within the phase change material 120 to substantially contact the phase change material 120 for heat exchange. The two ends of the first heat exchange pipeline 140 may be respectively communicated with the first heat exchange port and the heat exchange outlet on the housing 110, so that the pipeline connected through the first heat exchange port is connected with a heat exchange fluid with a preset temperature and is transmitted to the heat exchange outlet, and the heat exchange fluid is used for exchanging heat with the phase change material 120 around the first heat exchange pipeline 140 in the transmission process, so as to realize the thermal control of the battery cell 130. Specifically, when the charging/discharging temperature of the battery cell 130 is too high, the first heat exchange pipeline 140 can be connected with a heat exchange fluid with a lower temperature and exchange heat with the phase change material 120 to reduce the temperature of the phase change material 120, so that the phase change material 120 with the reduced temperature can cool the battery cell 130; when the charging/discharging temperature of the battery cell 130 is too low, the first heat exchange pipeline 140 can be connected to the heat exchange fluid with higher temperature and exchange heat with the phase change material 120 to raise the temperature of the phase change material 120, so that the phase change material 120 with raised temperature can raise the temperature of the battery cell 130.

According to the technical scheme of the utility model, the phase change material 120 is filled in the shell 110, and the battery cell 130 and the first heat exchange pipeline 140 are buried in the phase change material 120, so that the first heat exchange pipeline 140 can be connected with heat exchange fluid with preset temperature to perform heat control on the battery cell 130. According to the thermoelectric coupling energy storage module 100, the electric core 130 heat control function based on the phase change material 120 is integrated on the basis of the electricity storage function, compared with an energy storage scheme of single electricity storage, the electric core 130 is smaller in capacity, lower in cost and better in safety, so that the problem that an existing household energy storage scheme is lower in safety is solved, and meanwhile compared with a sensible heat energy storage scheme adopting a water tank, the thermoelectric coupling energy storage module is larger in energy storage density, smaller in size and convenient to use in families. In addition, the phase change material 120 absorbs heat and controls temperature in the charge/discharge process of the battery cell 130, so as to prolong the time of thermal runaway of the battery cell 130 and reduce the probability of thermal runaway of the battery cell 130, and can also effectively prevent flame when the battery cell 130 has an internal short circuit and other anomalies, thereby greatly improving the use safety of the battery cell 130.

Referring to FIG. 2, in one embodiment, the number of the battery cells 130 may be plural, and the number of the battery cells 130 is denoted as M, that is, M.gtoreq.2. The cathodes of each of the plurality of cells 130 may be connected to each other, and the anodes of each of the plurality of cells 130 may be connected to each other, such that the plurality of cells 130 are connected in parallel to form a cell group. It can be understood that the discharge voltage of the battery cell group is the sum of the discharge voltages of the battery cells 130, and the charge and discharge performance of the battery cell group is affected by the battery cell 130 with the smallest capacitance, so that in order to ensure that the charge and discharge performance of the battery cells 130 in the battery cell group are consistent, a plurality of battery cells 130 with the same ion type and capacity can be selected to form the battery cell group.

Referring to fig. 2, in an embodiment, a plurality of cells 130 may be arranged at equal intervals or non-equal intervals along a first preset direction to form a long-row type of cell group; the first preset direction may be a length direction or a width direction of the housing 110, which is not limited herein. By the arrangement, the mutual influence of heat generated by each cell 130 due to too close attachment distance can be effectively avoided, the probability of thermal runaway of the cell group is reduced, the phase change material 120 can be fully filled in the interval space between two adjacent cells 130, so that the phase change material 120 can be fully contacted with each cell 130, and the overall heat absorption and temperature control effect of the phase change material 120 on the cell group is improved.

Referring to FIG. 2, in one embodiment, the number of cell groups may be plural, and the number of cell groups is denoted as N, i.e., N.gtoreq.2. The plurality of cell groups may be connected in series and/or parallel, and is not limited herein. The plurality of battery cell groups may be arranged at equal intervals or non-equal intervals along a second preset direction to form a battery cell 130 cluster, and the second preset direction may be a perpendicular direction of the first preset direction. The arrangement is such that the plurality of battery cell groups can be arranged in the housing 110 by utilizing the space in the second preset direction, which is favorable for improving the space utilization rate of the accommodating cavity in the housing 110, and can effectively avoid the mutual influence of the heat generated by each battery cell group due to the too close sticking distance, thereby being favorable for reducing the probability of thermal runaway of each battery cell group. In addition, the phase change material 120 can be fully filled in the space between two adjacent cell groups, so that the phase change material 120 can be fully contacted with each cell group, which is beneficial to improving the heat absorption and temperature control effects of the phase change material 120 on each cell group.

Referring to fig. 2, in an embodiment, the first and second sides of the housing 110 may be opposite bottom and cover plates or opposite sidewalls. Each cell group may be disposed between the first surface and the second surface, and the positive electrode direction and the negative electrode direction of each cell 130 in the cell group may be consistent, so that the cell groups may be divided into the first cell group 131 and the second cell group 132 according to the direction of the positive electrode or the negative electrode of each cell 130 in the cell group. The battery cell group with the positive electrode of each battery cell 130 facing the first surface may be the first battery cell group 131; the battery cell group with the positive electrode of each battery cell 130 facing the second surface can be a second battery cell group 132; in other words, the positive electrode direction of each cell 130 in the first cell group 131 is opposite to the positive electrode direction of each cell 130 in the second cell group 132, that is, the negative electrode direction of each cell 130 in the first cell group 131 is opposite to the negative electrode direction of each cell 130 in the second cell group 132.

The number of the battery cells 130 of each first battery cell group 131 and each second battery cell group 132 may be the same, and may be alternately arranged at intervals along the second preset direction to form an array of battery cells 130. It can be understood that a first cell group 131 or a second cell group 132 is a row of the array of cells 130, so that the sum of the numbers of the first cell group 131 and the second cell group 132 is the row number of the array of cells 130, and the number of the cells 130 in each cell group is the column number of the array of cells 130, and in this embodiment, the array of cells 130 has at least one first cell group 131 and at least one cell group, that is, the number of the rows of the array of cells 130 is at least two. In the embodiment shown in fig. 2, the first one of the array of cells 130 is a first cell group 131.

Optionally, in the array of the electric cells 130, the negative electrode of each electric cell 130 in the first electric cell group 131 may be further connected to the positive electrode of the electric cell 130 on the same column in the second electric cell group 132 adjacent to the second preset direction, and the positive electrode of each electric cell 130 in the second electric cell group 132 may be further connected to the negative electrode of the electric cell 130 on the same column in the first electric cell group 131 adjacent to the second preset direction, so that each electric cell group forms a series structure. By this arrangement, the linear distance between the negative electrode of each cell 130 in the first cell group 131 and the negative electrode of the cell 130 on the same column in the second cell group 132 adjacent to the second cell group 132 in the second preset direction is further made to be closer, and the linear distance between the positive electrode of each cell 130 in the second cell group 132 and the negative electrode of the cell 130 on the same column in the first cell group 131 adjacent to the second preset direction is made to be closer, so that the routing when each cell group is connected in series is facilitated to be simplified.

Optionally, the shell 110 is provided with a positive electrode interface+ and a negative electrode interface-, wherein the positive electrode interface+ is used for being connected with external electric equipment, and the positive electrode interface+ can be connected with the positive electrode of any one cell 130 in the 1 st cell group of the cell group in the second preset direction in the first row of the cell 130 array; the negative electrode interface-may be connected to the negative electrode of any one of the cells 130 in the last row of the array of cells 130, i.e., the last cell group of the cell groups in the second preset direction. Therefore, when the positive electrode interface and the negative electrode interface are electrically connected with the positive electrode power supply interface and the negative electrode power supply interface of the electric equipment in a one-to-one correspondence manner, each series-connected battery cell group can form a current loop with a functional load in the electric equipment, so that the electric equipment is powered. In the embodiment shown in fig. 2, the positive interface + and the negative interface-are electrically connected to the cell 130 closest to the nearest own straight line in the first row and the last row, respectively, to further simplify routing.

Alternatively, the first heat exchange pipeline 140 may include a plurality of heat exchange tube segments 141, and each heat exchange tube segment 141 may be disposed along the first preset direction or extend at an included angle corresponding to the first preset direction. The plurality of heat exchange tube sections 141 may be arranged at intervals along a second preset direction, wherein a first end of a first heat exchange tube in the plurality of heat exchange tube sections 141 in the second preset direction may be communicated with the first heat exchange port, a second end of the first heat exchange tube section 141 may be communicated with one end of the second heat exchange tube section 141 via the connection tube section 142, and so on, until a first end of the last second heat exchange tube section 141 is connected with a second end of the last heat exchange tube section 141 via the connection tube section 142, and a first end of the last heat exchange tube section 141 may be communicated with the heat exchange outlet, thereby realizing sequential end-to-end connection of the plurality of heat exchange tube sections 141. It should be noted that at least one electric core group may be sandwiched between any two adjacent heat exchange tube sections 141, and in the embodiment shown in fig. 2, the number of electric core groups sandwiched between any two adjacent heat exchange tube sections 141 is one, so that the first heat exchange tube 140 may be fully contacted with the phase change material 120 in the interval in the array of electric cores 130, which is beneficial to further improving the heat exchange efficiency of the first heat exchange tube 140 for the array of electric cores 130.

Referring to fig. 1-2, in an embodiment, the phase change material 120 may be an inorganic phase change material 120 such as sodium sulfate decahydrate, calcium chloride hexahydrate, or the like. The phase transition temperature point of the inorganic phase transition material 120 is between 15 ℃ and 35 ℃ and is not flammable, so that the heat exchange efficiency can be improved, the flame retardant effect can be achieved when the local battery core 130 is abnormal such as internal short circuit, and the use safety of the thermoelectric coupling energy storage module 100 is improved.

The utility model also provides a heat pump system, which comprises a circulation system 200 and a thermoelectric coupling energy storage module 100, wherein the specific structure of the thermoelectric coupling energy storage module 100 refers to the above embodiment, and because the heat pump system adopts all the technical schemes of all the embodiments, the heat pump system at least has all the beneficial effects brought by the technical schemes of the embodiments, and the details are not repeated here.

Wherein the circulation system 200 has a first heat exchange port and a second heat exchange port; the first heat exchange port and the second heat exchange port of the circulation system 200 may be respectively connected with the first heat exchange port and the second heat exchange port of the thermoelectric coupling energy storage module 100, so as to provide heat exchange fluid such as refrigerant for the thermoelectric coupling energy storage module 100.

Optionally, the circulation system 200 includes: compression mechanism 210, first heat exchanger 220, and valve body assembly. The compression mechanism 210 may be a positive displacement compressor or a speed compressor, and is not limited herein; the compression mechanism 210 may have an inlet and an outlet, and the compression mechanism 210 is configured to compress and heat exchange fluid connected to the inlet, output the heat exchange fluid from the outlet, and power the flow of the heat exchange fluid when in operation.

The first heat exchanger 220 may be implemented using an outdoor heat exchange device such as an outdoor unit of an air conditioner. The first heat exchanger 220 may have a first port and a second port, where the first heat exchanger 220 is configured to exchange heat between the heat exchange fluid connected to either the first port or the second port and the outdoor air, so that the temperature of the heat exchange fluid is reduced, and the heat exchange fluid after heat exchange may be output from the other one of the two.

The valve body assembly can be realized by adopting a multi-way valve, a two-way valve and the like. The valve body assembly can be respectively communicated with the inlet and the outlet of the compression mechanism 210, the first port and the second port of the first heat exchanger 220 and the first heat exchange port of the thermoelectric coupling energy storage module, and the valve body assembly can be used for communicating the two heat exchange ports of the circulation system 200 with the inlet and the outlet of the compression mechanism 210 and/or the two ports of the first heat exchanger 220 by controlling the on/off state of the corresponding valve body in the valve body or the communication condition of the ports in the corresponding valve body, so as to realize multiple functions of cold accumulation, heat accumulation and the like of the heat pump system.

Alternatively, the valve body assembly may include a first multi-way valve T1, a second multi-way valve T2, and a first throttle device S1. Wherein, the first multi-way valve T1, the second multi-way valve T2 and the first throttle device S1 each have at least two ports (a first port and a second port). The first port of the first multi-way valve T1 may be communicated with the outlet of the compression mechanism 210 via a transmission pipeline, and the second port of the first multi-way valve T1 may be communicated with the first port of the first heat exchanger 220 via a transmission pipeline; the first port of the second multi-way valve T2 may be connected to the first heat exchange port of the thermoelectric coupling energy storage module through a transmission pipeline, and the second port of the second multi-way valve T2 may be connected to the inlet of the compression mechanism 210 through a transmission pipeline; the first port of the first throttling device S1 may be connected to the second port of the first heat exchanger 220 through a transmission line, and the second port of the first throttling device S1 may be connected to the second heat exchange port of the thermoelectric coupling energy storage module 100 through a transmission line.

Alternatively, the first multi-way valve T1 and the second multi-way valve T2 may further have one port, i.e., a third port, and the third port of the first multi-way valve T1 may be connected to the inlet of the compression mechanism 210 via a transmission line, and the third port of the second multi-way valve T2 may be connected to the outlet of the compression mechanism 210 via a transmission line.

Optionally, the circulation system 200 further includes: a second heat exchanger 230. The second heat exchanger 230 may be implemented by using indoor heat exchange devices such as an AHU, an air duct machine, a cold air heater, etc., the second heat exchanger 230 may have a first port and a second port, and the second heat exchanger 230 is configured to exchange heat between the indoor air and a heat exchange fluid connected to any one of the second port and the second port when in operation, so that the temperature of the heat exchange fluid is reduced, and the heat exchange fluid after heat exchange can be output from the other one of the two. It should be noted that, since the internal temperature of the thermoelectric coupling energy storage module 100 is in the range of 20 ℃ to 30 ℃ and can be controlled in the range of 15 ℃ to 35 ℃, the coil temperature (steaming) of the indoor heat exchanger is generally lower than 15 ℃, the coil temperature (steaming) of the indoor heat exchanger for heating is generally higher than 35 ℃, and the temperature of the domestic hot water is 40 ℃ to 55 ℃; therefore, the heat energy or the cold energy in the thermoelectric coupling energy storage module 100 cannot be directly used, and is required to be used by the first heat exchanger 220 or the second heat exchanger 230 through the compression mechanism 210.

The valve body assembly may also be respectively communicated with the first port and the second port of the second heat exchanger 230, so as to communicate the two ports of the valve body assembly with the inlet and the outlet of the compression mechanism 210 and/or the two ports of the first heat exchanger 220 by controlling the on/off state of the corresponding valve body in the valve body assembly or the communication condition of the ports in the corresponding valve body assembly, thereby realizing the refrigeration, heating, refrigeration, heat storage or heating, cold storage and other functions of the heat pump system.

Optionally, the first multi-way valve T1 may further have at least one port, that is, a fourth port, and the fourth port of the first multi-way valve T1 may be communicated with the second port of the second heat exchanger 230 through a transmission pipeline, where the first port of the second heat exchanger (230) is communicated with the second heat exchange port of the thermoelectric coupling energy storage module (100);

the valve body assembly may further include: a second throttle device S2 and a third throttle device S3. The second throttling device S2 and the third throttling device S3 are respectively provided with a first port and a second port, the first port of the second throttling device S2 can be communicated with the second port of the first throttling device S1 through a transmission pipeline, and the second port of the second throttling device S2 can be communicated with the second heat exchange port of the thermoelectric coupling energy storage module through a transmission pipeline; the first port of the third throttling device S3 may be communicated with the second port of the first throttling device S1 via a transmission line, and the second port of the third throttling device S3 may be communicated with the first port of the second heat exchanger 230 via a transmission line.

Optionally, the second multi-way valve T2 may further have a port, i.e., a fourth port. The fourth port of the second multi-way valve T2 may be fitted with a blocking device to form a blocking arrangement;

or, the fourth port of the second multi-way valve is communicated with the second port of the second multi-way valve through a capillary tube.

Further, the heat pump system may further include: the main control unit is electrically connected to the compression mechanism 210, the first heat exchanger 220, the second heat exchanger 230, the first multi-way valve T1, the second multi-way valve T2, the first throttling device S1, the second throttling device S2 and the third one-way valve in the circulation system 200, and is configured to correspondingly control the functional components in the circulation system 200 according to the received mode control signal, so as to implement multiple functions of the heat pump system.

In the embodiment shown in fig. 4 to 11, the first multi-way valve T1 and the second multi-way valve T2 may be implemented by a four-way valve, the first port of the first multi-way valve T1 may be an inlet of the four-way valve, and the first port, the second port, the third port and the fourth port may be three outlet ports of the four-way valve respectively; the third port of the second multi-way valve T2 may be a flow inlet of the four-way valve, and the first port, the second port, the fourth port and the fourth port may be three flow outlets of the four-way valve respectively. The first throttle device S1, the second throttle device S2 and the third one-way valve may be implemented by using an electronic expansion valve. It should be noted that, in the four-way valve, when any two outflow ports are communicated, the inflow port may be communicated with the remaining one outflow port.

The various functions that the heat pump system of the present utility model can achieve are explained in detail below with reference to fig. 4 to 11 as an example.

Referring to fig. 4, when the main control unit receives the cold accumulation cycle start signal, it may control the compression mechanism 210 and the first heat exchanger 220 to operate, control the first throttling device S1 and the second throttling device S2 to open, control the third throttling device S3 to close, control the first port and the second port of the first multi-way valve T1 to communicate, and control the first port and the second port of the second multi-way valve T2 to communicate.

At this time, the first port of the first multi-way valve T1 may be connected to the heat exchange fluid with a higher temperature flowing out from the outlet of the compression mechanism 210, and is transferred to the first port of the first heat exchanger 220 through the second port, so as to be cooled by the first heat exchanger 220 and then transferred to the second heat exchange port through the first throttling device S1 and the second throttling device S2, so that the thermoelectric coupling energy storage module 100 can store cold by using the heat exchange fluid with a lower temperature. The first heat exchange port can be connected to the heat exchange fluid with higher temperature after cold accumulation and heat exchange of the thermoelectric coupling energy storage module 100, and the heat exchange fluid is transmitted to the first port of the second multi-way valve T2, and then is transmitted to the inlet of the compression mechanism 210 in a backflow manner through the second port of the second multi-way valve T2. The cycle is repeated in this way, and the cold accumulation cycle of the heat pump system can be realized.

Referring to fig. 5, when the control unit receives the heat storage cycle start signal, the control unit may control the compression mechanism 210 and the first heat exchanger 220 to operate, control the first throttling device S1 and the second throttling device S2 to open, control the third throttling device S3 to close, control the second port of the first multi-way valve T1 to communicate with the third port, control the first port to communicate with the fourth port, and control the first port of the second multi-way valve T2 to communicate with the third port, and control the second port to communicate with the fourth port.

At this time, the third port of the second multi-way valve T2 may be connected to the heat exchange fluid with a higher temperature flowing out from the outlet of the compression mechanism 210, and transmitted to the first heat exchange port through the first port, so that the thermoelectric coupling energy storage module 100 may store heat by using the heat exchange fluid with a higher temperature. The second heat exchange port can be connected to the heat exchange fluid with lower temperature after heat accumulation and heat exchange of the thermoelectric coupling energy storage module 100, and the heat exchange fluid is transmitted to the second port of the first heat exchanger 220 through the second throttling device S2 and the first throttling device S1, so as to be cooled by the first heat exchanger 220 and then transmitted back to the inlet of the compression mechanism 210 through the first multi-way valve T1. The heat storage cycle of the heat pump system can be realized by circulating and reciprocating in this way.

Referring to fig. 6, the main control unit is configured to control the compression mechanism 210, the first heat exchanger 220 and the second heat exchanger 230 to operate when receiving a refrigeration cycle start signal, control the first throttling device S1 and the third throttling device S3 to be opened, control the second throttling device S2 to be closed, and control the first port of the first multi-way valve T1 to be communicated with the second port thereof and the third port to be communicated with the fourth port thereof.

At this time, the first port of the first multi-way valve T1 may be connected to the heat exchange fluid with a higher temperature flowing out from the outlet of the compression mechanism 210, and is transferred to the first port of the first heat exchanger 220 through the second port, so as to be transferred to the first port of the second heat exchanger 230 through the first throttling device S1 and the third throttling device S3 after being cooled by the first heat exchanger 220, so that the second heat exchanger 230 may utilize the heat exchange fluid with a lower temperature to perform refrigeration and heat exchange. The second port of the second heat exchanger 230 may output the heat exchange fluid after the cooling and heat exchange to the fourth port of the first multi-way valve T1, and the heat exchange fluid is returned from the third port of the first multi-way valve T1 to the inlet of the compression mechanism 210. The refrigeration cycle of the heat pump system can be realized by circulating and reciprocating in this way.

Referring to fig. 7, the main control unit is configured to control the compression mechanism 210, the first heat exchanger 220, and the second heat exchanger 230 to operate when receiving the heating cycle start signal, control the first throttling device S1 and the third throttling device S3 to be opened, control the second throttling device S2 to be closed, and control the first port and the fourth port of the first multi-way valve T1 to be communicated, and the second port and the third port to be communicated.

At this time, the first port of the first multi-way valve T1 may be connected to the heat exchange fluid with a higher temperature flowing out from the outlet of the compression mechanism 210, and is transferred to the second port of the second heat exchanger 230 through the fourth port, so that the second heat exchanger 230 may utilize the heat exchange fluid with a higher temperature to perform heat exchange. The first port of the second heat exchanger 230 can output the heat exchange fluid with lower temperature after heating and heat exchange, and the heat exchange fluid is transmitted to the first port of the first heat exchanger 220 through the third throttling device S3 and the first throttling device S1, and is transmitted to the second port of the first multi-way valve T1 after being cooled again through the first heat exchanger 220, and is transmitted to the inlet of the compression mechanism 210 through the third port of the first multi-way valve T1 in a backflow manner. The heating cycle of the heat pump system can be realized by circulating and reciprocating in this way.

Referring to fig. 8, the main control unit is configured to control the compression mechanism 210, the first heat exchanger 220, and the second heat exchanger 230 to operate when receiving a cooling start signal, control the first throttle device S1, the second throttle device S2, and the third throttle device S3 to be opened, control the first port and the second port of the first multi-way valve T1 to be communicated, and control the third port and the fourth port to be communicated, and control the first port and the third port and the second port and the fourth port of the second multi-way valve T2 to be communicated.

At this time, the heat exchange fluid with higher temperature flowing out from the outlet of the compression mechanism 210 is divided into two paths, wherein one path can be transmitted to the first heat exchanger 220 through the first port and the second port of the first multi-way valve T1, so as to be transmitted to the first port of the third throttling device S3 through the first throttling device S1 after being cooled by the first heat exchanger 220; the other path is transmitted to the first heat exchange port through the first port and the third port of the second multi-way valve T2, so that the thermoelectric coupling energy storage module 100 can utilize the heat exchange fluid with higher temperature to take cold heat exchange, and then is accessed and transmitted to the first port of the third throttling device S3 through the second heat exchange port. The third throttling device S3 can transfer the collected two paths of heat exchange fluid with lower temperature to the second heat exchanger 230, so that the second heat exchanger 230 uses the heat exchange fluid with lower temperature to perform refrigeration and heat exchange, and then the second port of the second heat exchanger 230 flows back and transfers the collected two paths of heat exchange fluid to the inlet of the compression mechanism 210 through the fourth port and the third port of the first multi-way valve T1. The circulation is repeated in this way, and the refrigeration and cold taking circulation of the heat pump system can be realized.

Referring to fig. 9, the main control unit is configured to control the compression mechanism 210, the first heat exchanger 220, and the second heat exchanger 230 to operate when receiving the heating start signal, control the first throttle device S1, the second throttle device S2, and the third throttle device S3 to open, control the first port and the fourth port of the first multi-way valve T1 to communicate, control the second port and the third port to communicate, and control the first port and the second port and the third port of the second multi-way valve T2 to communicate.

At this time, the first port of the first multi-way valve T1 may be connected to the heat exchange fluid with a higher temperature flowing out from the outlet of the compression mechanism 210, and is transferred to the second port of the second heat exchanger 230 through the fourth port, so that the second heat exchanger 230 may utilize the heat exchange fluid with a higher temperature to perform heat exchange, and then the heat exchange fluid with a lower temperature after heat exchange is transferred to the third throttling device S3 through the first port of the second heat exchanger 230. The heat exchange fluid with lower temperature is divided into two paths at the first port of the third throttling device S3, wherein one path is transmitted to the inlet of the compression mechanism 210 in a reflux way through the first throttling device S1, the first heat exchanger 220, the second port and the third port of the first multi-way valve T1 in sequence; the other path is transmitted to a second heat exchange port through a second throttling device S2, so that the thermoelectric coupling energy storage module 100 can utilize the heat exchange fluid with lower temperature to take heat and exchange heat, and the first heat exchange port can be connected with the heat exchange fluid after taking heat and exchange heat and is transmitted to the inlet of the compression mechanism 210 in a backflow manner through the first port and the second port of the second throttling device S2. The circulation is repeated in this way, and the heating and heat-taking circulation of the heat pump system can be realized.

Referring to fig. 10, the main control unit is configured to control the compression mechanism 210, the first heat exchanger 220, and the second heat exchanger 230 to operate when receiving the cooling and cold accumulation start signal, control the first throttling device S1, the second throttling device S2, and the third throttling device S3 to be opened, control the first port and the second port of the first multi-way valve T1 to be communicated, and control the third port and the fourth port to be communicated, and control the first port and the second port and the third port of the second multi-way valve T2 to be communicated.

At this time, the heat exchange fluid with higher temperature flowing out of the outlet of the compression mechanism 210 may be transferred to the first heat exchanger 220 through the first port and the second port of the first multi-way valve T1, so as to be transferred to the first port of the third heat exchanger 150 through the first throttling device S1 and the third throttling device S3 after being cooled by the first heat exchanger 220. The heat exchange fluid with lower temperature is divided into two paths at the first port of the third throttling device S3, wherein one path is transmitted to the second heat exchanger through the third throttling device S3, so that the second heat exchanger 230 can utilize the heat exchange fluid with lower temperature to exchange heat in a refrigerating mode, and then the heat exchange fluid is transmitted to the inlet of the compression mechanism 210 in a reflux mode through the third port and the fourth port of the first multi-way valve T1; the other path of the heat energy is transmitted to the second heat exchange port through the second throttling device S2, so that the thermoelectric coupling energy storage module 100 can utilize the heat exchange fluid with lower temperature to store heat and exchange heat, and then is connected to the first heat exchange port and is transmitted to the inlet of the compression mechanism 210 in a backflow manner through the first port and the second port of the second multi-way valve T2. The circulation is repeated in this way, and the refrigeration and cold taking circulation of the heat pump system can be realized.

Referring to fig. 11, the main control unit is configured to control the compression mechanism 210, the first heat exchanger 220, and the second heat exchanger 230 to operate when receiving the heating and heat storage start signal, control the first throttle device S1, the second throttle device S2, and the third throttle device S3 to be opened, control the first port and the fourth port of the first multi-way valve T1 to be communicated, control the second port and the third port to be communicated, and control the first port and the third port and the second port and the fourth port of the second multi-way valve T2 to be communicated.

At this time, the heat exchange fluid having a relatively high temperature flowing out from the outlet of the compression mechanism 210 is split into two paths. One path of the heat exchange fluid can be transmitted to the second heat exchanger 230 through the first port and the fourth port of the first multi-way valve T1, so that the second heat exchanger 230 can utilize the heat exchange fluid with higher temperature to heat and exchange heat, and then the heat exchange fluid is transmitted to the first port of the third throttling device S3 through the first port of the second heat exchanger 230; the other path can be transmitted to the second heat exchange port through the third port and the first port of the second multi-way valve T2, so that the thermoelectric coupling energy storage module 100 can utilize the heat exchange fluid with higher temperature to store heat and exchange heat, and then is accessed and transmitted to the first port of the third throttling device S3 through the second heat exchange port. The first throttling device S1 can reflux and transmit two paths of heat exchange fluid with lower temperature collected at the first port of the third throttling device S3 to the inlet of the compression mechanism 210 through the first heat exchanger 220, the second port and the third port of the first multi-way valve T1 in sequence. The circulation is repeated in this way, and the heating and heat storage circulation of the heat pump system can be realized.

In this embodiment, the heat exchange fluid may be water, an aqueous solution, a refrigerant, or other liquid or gas-liquid mixture capable of exchanging heat. However, in actual use, the heat exchange fluid flowing through the first heat exchange pipeline 140 in the thermoelectric coupling energy storage module 100 and the heat exchange fluid flowing through the circulation system 200 are generally of different types, and the first heat exchange port and the second heat exchange port of the thermoelectric coupling energy storage module 100 are directly and correspondingly communicated with the first heat exchange port and the second heat exchange port of the circulation system 200, which may cause mutual pollution of the heat exchange fluids. In view of this problem, in the technical solution of the present utility model, by providing the third heat exchanger 150, the third heat exchanger 150 may have the second heat exchange pipeline 151 and the third heat exchange pipeline 152, and the second heat exchange pipeline 151 and the third heat exchange pipeline 152 may exchange heat with each other through the heat exchange medium filled between the two, where two ports of the first heat exchange management may be respectively communicated with the first heat exchange port and the second heat exchange port of the thermoelectric coupling energy storage module 100 to form a heat exchange loop of the thermoelectric coupling energy storage module 100; the two ports of the second heat exchange management may be respectively communicated with the first heat exchange port and the second heat exchange port of the circulation system 200 to form a heat exchange loop of the circulation system 200. In this way, the thermoelectric coupling energy storage module 100 and the circulation system 200 can exchange heat through the heat exchange medium in the third heat exchanger 150, thereby solving the problem of mutual pollution of the heat exchange fluids. When the heat exchange fluid in the thermoelectric coupling energy storage module 100 is water or an aqueous solution and the heat exchange fluid in the circulation system 200 is a refrigerant, the third heat exchanger 150 may be a water-fluorine heat exchanger.

Optionally, the thermoelectric coupled energy storage module 100 may further include a circulation pump 160. The circulation pump 160 may have an inlet and an outlet, the inlet of the circulation pump 160 may be in communication with one port of the second heat exchange line 151, and the outlet may be in communication with the first heat exchange port of the housing 110; alternatively, the inlet of the circulation pump 160 may be in communication with the second heat exchange port of the housing 110, and the outlet may be in communication with one port of the second heat exchange line 151. By the arrangement, the flow speed of heat exchange fluid in the thermoelectric coupling energy storage module 100 and the third heat exchanger 150 can be increased, which is beneficial to increasing heat exchange efficiency.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (18)

1. A thermoelectric coupled energy storage module, the thermoelectric coupled energy storage module comprising:

the shell is provided with a first heat exchange port and a second heat exchange port;

a phase change material filled in the housing;

the battery core is buried in the phase change material; the method comprises the steps of,

The first heat exchange pipeline is buried in the phase change material and is respectively communicated with the first heat exchange port and the second heat exchange port of the shell.

2. The thermoelectric coupled energy storage module of claim 1 wherein the number of cells is M, and wherein a plurality of the cells are connected in parallel to form a cell group, M being not less than 2.

3. The thermoelectric coupled energy storage module of claim 2 wherein a plurality of cells in the set of cells are spaced apart along a first predetermined direction.

4. The thermoelectric coupled energy storage module as set forth in claim 3, wherein the number of said cell groups is N, and a plurality of said cell groups are arranged at intervals along a second preset direction, said second preset direction being perpendicular to said first preset direction, N being not less than 2.

5. The thermally coupled energy storage module of claim 4, wherein said housing has opposed first and second faces;

the battery cell component comprises a first battery cell group and a second battery cell group, wherein the positive electrode of each battery cell in the first battery cell group faces the first surface of the shell respectively, and the positive electrode of each battery cell in the second battery cell group faces the second surface of the shell respectively;

the number of the first battery cell groups and the second battery cell groups is at least one, and the first battery cell groups and the second battery cell groups are alternately arranged along a second preset direction to form a battery cell array.

6. The thermoelectric coupled energy storage module of claim 4 wherein each of said cell groups is connected in series.

7. The thermally coupled energy storage module of claim 4, wherein a plurality of said cell groups have a 1 st cell group and an nth cell group in a second predetermined direction;

the shell is provided with an anode interface and a cathode interface, the anode interface is connected with the anode of any one of the cells in the 1 st cell group, and the cathode interface is connected with the cathode of any one of the cells in the N cell group.

8. The thermoelectric coupling energy storage module as set forth in claim 4, wherein said first heat exchange line comprises a plurality of heat exchange tube sections connected end to end in sequence, the plurality of heat exchange tube sections being arranged at intervals along a second predetermined direction, at least one of said cell groups being interposed between any two adjacent heat exchange tube sections.

9. A thermoelectric coupled energy storage module as in any of claims 1-8, wherein said phase change material is an inorganic phase change material.

10. A heat pump system, the heat pump system comprising:

the circulating system is provided with a first heat exchange port and a second heat exchange port;

the thermoelectric coupling energy storage module of any one of claims 1-9 in communication with a first heat exchange port and a second heat exchange port, respectively, of the circulation system.

11. The heat pump system of claim 10, wherein the circulation system comprises:

a compression mechanism having an inlet and an outlet;

the first heat exchanger is provided with a first port and a second port;

and the valve body assembly is respectively communicated with the inlet and the outlet of the compression mechanism, the first through port of the first heat exchanger and the first heat exchange through port of the thermoelectric coupling energy storage module.

12. The heat pump system of claim 11, wherein the valve body assembly comprises:

a first multi-way valve having a first port and a second port, the first port of the first multi-way valve being in communication with the outlet of the compression mechanism, the second port of the first multi-way valve being in communication with the first port of the first heat exchanger;

the second multi-way valve is provided with a first port and a second port, the first port of the second multi-way valve is communicated with the first heat exchange port of the thermoelectric coupling energy storage module, and the second port of the second multi-way valve is communicated with the inlet of the compression mechanism;

the first throttling device is provided with a first port and a second port, the first port of the first throttling device is communicated with the second port of the first heat exchanger, and the second port of the first throttling device is communicated with the second heat exchange port of the thermoelectric coupling energy storage module.

13. The heat pump system of claim 12, wherein the first multi-way valve further has a third port, the third port of the first multi-way valve being in communication with the inlet of the compression mechanism;

the second multi-way valve also has a third port that communicates with the outlet of the compression mechanism.

14. The heat pump system of claim 13, wherein the circulation system further comprises:

the second heat exchanger is provided with a first port and a second port;

the first multi-way valve is further provided with a fourth port, the fourth port of the first multi-way valve is communicated with the second port of the second heat exchanger, and the first port of the second heat exchanger is communicated with the second heat exchange port of the thermoelectric coupling energy storage module;

the valve body assembly further includes:

the second throttling device is provided with a first port and a second port, the first port of the second throttling device is communicated with the second port of the first throttling device, and the second port of the second throttling device is communicated with the second heat exchange port of the thermoelectric coupling energy storage module;

the third throttling device is provided with a first port and a second port, the first port of the third throttling device is communicated with the second port of the first throttling device, and the second port of the third throttling device is communicated with the first port of the second heat exchanger.

15. The heat pump system of any of claims 12-14, wherein the second multi-way valve further has a fourth port, the fourth port of the second multi-way valve being blocked;

or, the fourth port of the second multi-way valve is communicated with the second port of the second multi-way valve through a capillary tube.

16. The heat pump system of claim 15, further comprising:

the main control unit is connected with the circulating system and is used for controlling the circulating system to work according to the received mode control signal.

17. The heat pump system of claim 10, wherein the thermoelectric coupled energy storage module further comprises:

the third heat exchanger is provided with a second heat exchange pipeline and a third heat exchange pipeline which are configured to exchange heat mutually, two ports of the second heat exchange pipeline are respectively communicated with the first heat exchange port and the second heat exchange port of the shell of the thermoelectric coupling energy storage module, and two ports of the third heat exchange pipeline are respectively communicated with the first heat exchange port and the second heat exchange port of the circulating system.

18. The heat pump system of claim 17, wherein the thermoelectric coupled energy storage module further comprises:

And the circulating pump is arranged between any one port of the second heat exchange pipeline and the shell of the thermoelectric coupling energy storage module.

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