Dehumidification and exhaust assembly, energy storage system and dehumidification and exhaust method

Abstract

The invention provides a dehumidification and exhaust assembly, an energy storage system and a dehumidification and exhaust method, and relates to the technical field of energy storage. The dehumidification and exhaust assembly comprises a heat exchanger, a cold and hot part and a gas-liquid separation part, the cold and hot part is arranged between the heat exchanger and the gas-liquid separation part, the gas-liquid separation part communicates with a liquid cooling assembly, the liquid cooling assembly is used for conveying a heat exchange medium to the gas-liquid separation part so as to dehumidify the installation environment of the energy storage device, and the gas-liquid separation part can discharge gas in the heat exchange medium. According to the dehumidification and exhaust assembly, the dehumidification function is achieved, meanwhile, the exhaust function can be achieved, the situation that bubbles in a heat exchange medium damage a water pump or a pipeline or other components is avoided, the service life is prolonged, and the use effect of a user is improved.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a dehumidification and exhaust assembly, an energy storage system and a dehumidification and exhaust method. Background Art

[0002] The energy storage device in the prior art usually can only achieve the cooling of the electrochemical battery by using the temperature control system, but cannot solve the problem of environmental humidity at the same time. High humidity will bring potential safety hazards to the electrochemical battery.

[0003] To solve this problem, energy storage devices can only rely on dehumidifying air conditioners or dehumidifiers to adjust the ambient humidity. However, dehumidifying air conditioners are expensive, occupy a large space, and have a large investment cost and installation workload; dehumidifiers have poor dehumidification effects, and the heat generated during the dehumidification process will also affect the uniformity of the internal temperature of the energy storage device, causing heat accumulation, thereby affecting the use effect of the energy storage device. Summary of the invention

[0004] The present invention provides a dehumidification and exhaust component, an energy storage system and a dehumidification and exhaust method, which realize the dehumidification and exhaust function and have low production cost.

[0005] According to a first aspect of the present invention, a dehumidification exhaust assembly is provided, which includes a heat exchanger, a hot and cold component and a gas-liquid separator, wherein the hot and cold component is located between the heat exchanger and the gas-liquid separator, and the gas-liquid separator is provided with a liquid inlet, a liquid outlet and an exhaust port, wherein the liquid inlet is used for a heat exchange medium to flow in, and the gas-liquid separator is configured to perform gas-liquid separation on the heat exchange medium to form liquid and gas, and discharge the liquid from the liquid outlet, and discharge the gas from the exhaust port.

[0006] In some embodiments, along the first direction, one side of the hot and cold element has a cold surface, and the other side has a hot surface, the cold surface and the hot surface are arranged in parallel and spaced apart, the cold surface of the hot and cold element is connected to one of the heat exchanger and the gas-liquid separation element, and the hot surface of the hot and cold element is connected to the other of the heat exchanger and the gas-liquid separation element.

[0007] In some embodiments, the dehumidification exhaust assembly further comprises:

[0008] The shell includes a heat exchanger, a cold and hot component, and a gas-liquid separation component. The shell is provided with an air inlet, an air outlet, and a condensation water outlet.

[0009] In some embodiments, along the second direction, the air inlet is arranged on the top surface of the housing, and the condensation water outlet is arranged on the bottom surface of the housing;

[0010] And / or, along the first direction, the air outlet is arranged on the side of the housing and faces the heat exchanger;

[0011] Among them, the first direction and the second direction are perpendicular to each other, the first direction is the arrangement direction of the heat exchanger, the hot and cold parts and the gas-liquid separation part or the width direction of the dehumidification exhaust assembly, and the second direction is the height direction along the dehumidification exhaust assembly.

[0012] In some embodiments, the dehumidification exhaust assembly further comprises:

[0013] The humidity sensor is arranged in the housing.

[0014] In some embodiments, the gas-liquid separator is provided with a liquid collecting portion and a gas collecting portion, the liquid inlet and the liquid outlet are in communication with the liquid collecting portion, and the gas collecting portion is in communication with the gas outlet;

[0015] Wherein, along the second direction, the gas collecting portion is located above at least a portion of the liquid collecting portion;

[0016] Wherein, the second direction is along the height direction of the dehumidification exhaust assembly.

[0017] In some embodiments, the area of ​​the liquid collecting portion is smaller than the area of ​​the side surface of the hot and cold element facing the gas-liquid separation element;

[0018] And / or, the area of ​​the gas collecting portion is smaller than the area of ​​the side surface of the hot and cold element facing the gas-liquid separation element;

[0019] and / or, the sum of the area of ​​the liquid collecting portion and the area of ​​the gas collecting portion is greater than or equal to the area of ​​the side surface of the hot and cold element facing the gas-liquid separation element;

[0020] And / or, the area of ​​the liquid collecting part is greater than or equal to the area of ​​the gas collecting part.

[0021] In some of the embodiments, the liquid collecting portion is provided with a deceleration structure.

[0022] In some embodiments, the deceleration structure includes a plurality of rows of spoiler groups arranged along the second direction, and the spoiler groups include a plurality of spoilers arranged at intervals;

[0023] Wherein, the number of spoilers in the spoiler group corresponding to the liquid inlet is greater than the number of spoilers in the spoiler group corresponding to the liquid outlet.

[0024] In some embodiments, the dehumidification exhaust assembly further comprises:

[0025] A control valve, disposed at the exhaust port, for controlling the opening and closing of the exhaust port;

[0026] A controller, electrically connected to the hot and cold parts and the control valve;

[0027] A temperature sensor has one end electrically connected to the controller and the other end abutting against the gas-liquid separator corresponding to the gas collecting portion, and is used to detect the temperature of the gas-liquid separator corresponding to the gas collecting portion.

[0028] According to the second aspect of the present invention, an embodiment of the present invention further provides an energy storage system, comprising an energy storage device, a liquid cooling component and the above-mentioned dehumidification and exhaust component, wherein the liquid cooling component is connected to the energy storage device and is used for heat exchange of the energy storage device, the liquid cooling component is connected to the liquid inlet of the dehumidification and exhaust component and is used to transport the heat exchange medium to the liquid inlet, and the dehumidification and exhaust component is connected to the energy storage device and is used to dehumidify the installation environment of the energy storage device.

[0029] According to a second aspect of the present invention, an embodiment of the present invention further provides a dehumidification and exhaust method for controlling the above-mentioned dehumidification and exhaust component, and the dehumidification and exhaust method comprises the following steps:

[0030] Start the dehumidification mode, connect the cold surface of the hot and cold parts to the heat exchanger, and connect the hot surface of the hot and cold parts to the gas-liquid separator;

[0031] The high-temperature and high-humidity air in the installation environment of the energy storage device is condensed by a heat exchanger, and the generated heat is transferred to the gas-liquid separation component through the hot and cold components;

[0032] The heat exchange medium flows into the liquid inlet and passes through the gas-liquid separator to separate the gas and liquid, so that the liquid outlet discharges the liquid in the heat exchange medium, and the gas outlet discharges the gas in the heat exchange medium, and the heat is absorbed and taken away by the liquid flowing through the gas-liquid separator.

[0033] In some of the embodiments, before starting the dehumidification mode, the exhaust mode is started to control the exhaust port of the gas-liquid separation element to discharge the gas in the heat exchange medium.

[0034] In some embodiments, the following steps are included before discharging the gas in the heat exchange medium at the exhaust port:

[0035] Obtaining the actual temperature T of the gas-liquid separation element corresponding to the gas collecting portion and the actual liquid outlet temperature T' of the liquid outlet;

[0036] Compare the difference between the actual temperature T and the actual liquid outlet temperature T', the first preset temperature T1 and the second preset temperature T2;

[0037] When T-T'≥T1, the exhaust mode is started to control the exhaust port of the dehumidification exhaust component to open and discharge the gas in the heat exchange medium;

[0038] When T-T'≤T2, the exhaust mode is turned off to control the exhaust port of the dehumidification exhaust component to be closed;

[0039] After the exhaust mode is started, when T2<T-T'<T1, the exhaust mode is started to control the exhaust port of the dehumidification exhaust component to open and discharge the gas in the heat exchange medium;

[0040] Among them, T2≤T1.

[0041] In some embodiments, the following steps are included before starting the dehumidification mode:

[0042] Obtain the actual humidity RH of the installation environment of the energy storage device;

[0043] Compare the actual humidity RH, the first preset humidity RH1 and the second preset humidity RH2;

[0044] When RH≥RH1, the dehumidification mode is started, so that the dehumidification exhaust assembly dehumidifies the installation environment of the energy storage device;

[0045] When RH≤RH2, the dehumidification mode is turned off, so that the dehumidification exhaust assembly stops dehumidifying the installation environment of the energy storage device;

[0046] After the dehumidification mode is started, when RH2<T-T'<RH1, the dehumidification mode is started so that the dehumidification exhaust assembly dehumidifies the installation environment of the energy storage device;

[0047] Among them, RH2≤RH1.

[0048] In some embodiments, when the dehumidification mode is started and / or after the dehumidification mode is started, the following steps are also included:

[0049] The dehumidification exhaust assembly is used to assist the heat exchange of the energy storage device.

[0050] In some embodiments, the following steps are further included before the auxiliary heat exchange:

[0051] Obtain the maximum temperature Tmax of the energy storage device;

[0052] comparing the maximum temperature Tmax, the third preset temperature T3 and the fourth preset temperature T4;

[0053] When Tmax≥T3, the auxiliary cooling mode is started to allow the dehumidification exhaust assembly to dissipate heat from the energy storage device;

[0054] When Tmax≤T4, turn off the auxiliary cooling mode;

[0055] After the auxiliary cooling mode is started, when T4<Tmax<T3, the auxiliary cooling mode is started to enable the dehumidification exhaust assembly to perform auxiliary cooling on the energy storage device;

[0056] Among them, T3≥T4.

[0057] In some embodiments, the auxiliary cooling mode comprises the following steps:

[0058] Connect the hot surface of the hot and cold parts to the heat exchanger, and connect the cold surface of the hot and cold parts to the gas-liquid separation part;

[0059] The heat generated by the energy storage device is transported to the gas-liquid separation element through the liquid cooling component, and is transferred to the heat exchanger through the hot and cold elements for discharge.

[0060] In some embodiments, the following steps are further included before the auxiliary heat exchange:

[0061] Obtain the minimum temperature Tmin of the energy storage device;

[0062] comparing the minimum temperature Tmin, the fifth preset temperature T5 and the sixth preset temperature T6;

[0063] When Tmin≤T5, the auxiliary heating mode is started to enable the dehumidification exhaust assembly to heat the energy storage device;

[0064] When Tmin≥T6, turn off the auxiliary heating mode;

[0065] After the auxiliary heating mode is started, when T5<Tmin<T6, the auxiliary heating mode is started, so that the dehumidification exhaust assembly performs auxiliary heating on the energy storage device;

[0066] Among them, T5≤T6.

[0067] In some embodiments, the auxiliary heating mode includes the following steps:

[0068] Connect the cold surface of the hot and cold parts to the heat exchanger, and connect the hot surface of the hot and cold parts to the gas-liquid separation part;

[0069] The temperature of the heat exchanger is controlled to decrease so that the hot surface of the cold and hot parts can heat the heat exchange medium in the gas-liquid separation part for auxiliary heating of the energy storage device.

[0070] An embodiment of the present invention has the following advantages or beneficial effects:

[0071] The dehumidification exhaust assembly and dehumidification exhaust method provided by the embodiment of the present invention, when the installation environment of the energy storage device requires dehumidification, the heat of the high-temperature and high-humidity air and the heat generated during the condensation process are transferred to the gas-liquid separation component through the hot and cold components. The gas-liquid separation component can separate the heat exchange medium flowing in from the liquid inlet into gas and liquid. The liquid outlet is used to discharge the liquid in the heat exchange medium. The heat is taken away by the heat exchange medium flowing through the gas-liquid separation component to achieve the purpose of cooling. At the same time, the exhaust port of the gas-liquid separation component provides an exhaust channel for the gas in the heat exchange medium, so that the dehumidification exhaust assembly can realize the exhaust function while realizing the dehumidification function, avoiding the situation where the bubbles in the heat exchange medium damage the water pump or pipeline and other components, extending the service life, and improving the user's use effect.

[0072] In the energy storage system provided by the embodiment of the present invention, the liquid cooling component is used to transport the heat exchange medium to the dehumidification exhaust component. The dehumidification exhaust component is configured to dehumidify the installation environment of the energy storage device. The heat generated during the dehumidification process can be taken away by the liquid cooling component, thereby avoiding the accumulation of heat inside the energy storage device due to temperature differences, improving the uniformity of the energy storage device, and realizing the heat exchange of the energy storage device and the humidity control of the installation environment of the energy storage device. Integrating the heat exchange function and the dehumidification function on the same system has strong functionality, small footprint, and low installation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to better understand the present invention, reference may be made to the embodiments shown in the following drawings. The components in the drawings are not necessarily to scale, and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present invention. In addition, related elements or components may have different settings as known in the art. In addition, in the drawings, the same reference numerals represent the same or similar components in each of the drawings. The above and other features and advantages of the present invention will become more apparent by describing in detail its exemplary embodiments with reference to the drawings.

[0074] in:

[0075] Figure 1 It is a schematic diagram of the principle of an energy storage system according to an embodiment of the present invention;

[0076] Figure 2 Shown is a schematic structural diagram of an energy storage system according to an embodiment of the present invention;

[0077] Figure 3 It shows a schematic diagram of the structure of a dehumidification exhaust assembly and a liquid cooling assembly according to an embodiment of the present invention;

[0078] Figure 4 The structure of the dehumidification exhaust assembly according to one embodiment of the present invention is shown in FIG. Figure 1 ;

[0079] Figure 5The structure of the dehumidification exhaust assembly of an embodiment of the present invention is shown with the outer shell hidden. Figure 1 ;

[0080] Figure 6 It shows a schematic diagram of the structure of the hot and cold parts in the dehumidification exhaust assembly according to an embodiment of the present invention;

[0081] Figure 7 The structure of the dehumidification exhaust assembly according to one embodiment of the present invention is shown in FIG. Figure 2 ;

[0082] Figure 8 The structure of the dehumidification exhaust assembly according to one embodiment of the present invention is shown in FIG. Figure 3 ;

[0083] Fig. 9 The structure of the dehumidification exhaust assembly of an embodiment of the present invention is shown with the outer shell hidden. Figure 2 ;

[0084] Fig.10 The structure of the dehumidification exhaust assembly of an embodiment of the present invention is shown with the outer shell hidden. Figure 3 ;

[0085] Fig.11 The structure diagram of the gas-liquid separator in the dehumidification exhaust assembly according to one embodiment of the present invention is shown;

[0086] Fig.12 The flow chart of the dehumidification and exhaust method according to one embodiment of the present invention is shown as follows: Figure 1 ;

[0087] Fig.13 The flow chart of the dehumidification and exhaust method according to one embodiment of the present invention is shown as follows: Figure 2 ;

[0088] Fig.14 The flow chart of the dehumidification and exhaust method according to one embodiment of the present invention is shown as follows: Figure 3 .

[0089] The reference numerals are described as follows:

[0090] 1. Liquid cooling component; 2. Dehumidification and exhaust component; 3. Energy storage device;

[0091] 11. Main pipeline; 12. First connecting pipeline; 13. First joint;

[0092] 21. heat exchanger; 22. hot and cold parts; 24. housing; 25. second connecting pipeline; 26. second joint;

[0093] 231, gas-liquid separation element; 2311, liquid collecting part; 2312, gas collecting part; 2313, speed reduction structure;

[0094] 232, liquid inlet; 233, liquid outlet; 234, exhaust port; 235, temperature sensor; 236, control valve; 237, controller;

[0095] 241. Air inlet; 242. Air outlet; 243. Condensation water outlet. DETAILED DESCRIPTION

[0096] The following will be combined with the accompanying drawings in the exemplary embodiments of the present invention to clearly and completely describe the technical solutions in the exemplary embodiments of the present invention. The exemplary embodiments described herein are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. Therefore, it should be understood that various modifications and changes can be made to the exemplary embodiments without departing from the scope of protection of the present invention.

[0097] In the description of the present invention, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or more; the term "and / or" includes any and all combinations of one or more associated listed items. In particular, reference to "the / the" object or "an" object is also intended to indicate one of a possible plurality of such objects.

[0098] Unless otherwise specified or explained, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, an integral connection, an electrical connection, or a signal connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0099] Further, in the description of the present invention, it should be understood that the directional words such as "upper", "lower", "inner", "outer" and the like described in the exemplary embodiments of the present invention are described at the angles shown in the accompanying drawings and should not be understood as limiting the exemplary embodiments of the present invention. It should also be understood that, in the context, when it is mentioned that an element or feature is connected to another element (one or more) "upper", "lower", or "inner", "outer", it can not only be directly connected to the other (one or more) elements "upper", "lower", "inner", "outer", but also can be indirectly connected to the other (one or more) elements "upper", "lower", "inner", "outer" through an intermediate element.

[0100] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0101] This embodiment provides an energy storage system, such as Figure 1-Figure 2 As shown, the energy storage system includes a liquid cooling component 1, a dehumidification exhaust component 2 and an energy storage device 3. The liquid cooling component 1 is connected to the energy storage device 3 and is used for heat exchange of the energy storage device 3. The dehumidification exhaust component 2 is connected to the energy storage device 3 and is used for dehumidifying the installation environment of the energy storage device 3.

[0102] Among them, the energy storage device 3 is the heat dissipation object of the liquid cooling component 1. The energy storage device 3 can be an electrochemical battery. For example, the energy storage device 3 can be a battery cell, a battery pack, a battery system, etc. The liquid cooling component 1 transports a heat exchange medium to the energy storage device 3. The heat exchange medium can be selected from coolant, cooling water, ethylene glycol, or plasma water, etc. The heat exchange medium is used for heat exchange of the energy storage device 3. When the temperature of the energy storage device 3 is relatively high, the liquid cooling component 1 takes out the heat of the energy storage device 3 through the heat exchange medium to achieve heat dissipation of the energy storage device 3; when the temperature of the energy storage device 3 is relatively low, the liquid cooling component 1 heats the energy storage device 3 through the heat exchange medium to prevent the low temperature of the energy storage device 3 from affecting the performance.

[0103] The liquid cooling component 1 is connected to the dehumidification exhaust component 2. The liquid cooling component 1 is used to transport heat exchange medium to the dehumidification exhaust component 2. The dehumidification exhaust component 2 is configured to dehumidify the installation environment of the energy storage device 3. The heat generated during the dehumidification process can be taken away by the liquid cooling component 1, thereby avoiding heat accumulation inside the energy storage device 3 due to temperature differences, thereby improving the uniformity of the energy storage device 3.

[0104] The energy storage system provided in this embodiment realizes heat exchange of the energy storage device 3 and humidity control of the installation environment of the energy storage device 3, and integrates the heat exchange function and the dehumidification function on the same system, which has strong functionality, small footprint and low installation cost.

[0105] It should be particularly noted that the number of energy storage devices 3 can be multiple, and multiple energy storage devices 3 are arranged on the cabinet shelves according to a certain pattern. In this case, the energy storage system is specifically an energy storage cabinet, and the liquid cooling component 1 and the dehumidification and exhaust component 2 are arranged in the cabinet of the energy storage cabinet. In this case, the internal space of the energy storage cabinet is the installation environment of the energy storage device 3, that is, the dehumidification and exhaust component 2 can dehumidify the internal space of the energy storage cabinet.

[0106] Specifically, Figure 2-Figure 3As shown, the liquid cooling component 1 includes a refrigeration unit (not shown in the figure), a main line 11 and a first connecting line 12. One end of the main line 11 is connected to the refrigeration unit, and the other end is connected to the dehumidification exhaust assembly 2. The refrigeration unit is used for heat exchange of heat exchange medium. The heat exchange medium output from the refrigeration unit is transported to the dehumidification exhaust assembly 2 through the main line 11. One end of the first connecting line 12 is connected to the main line 11, and the other end is connected to the energy storage device 3 through the first joint 13, which is used to transport the heat exchange medium to the energy storage device 3. The number of first connecting lines 12 can be selected to be multiple, and multiple first connecting lines 12 and multiple energy storage devices 3 are correspondingly arranged to play the role of transport branches to ensure that each energy storage device 3 can perform heat exchange.

[0107] Specifically, the liquid cooling component 1 also includes a second connecting pipeline 25 , one end of which is connected to the dehumidification exhaust component 2 , and the other end of which is connected to the energy storage device 3 through a second joint 26 for conveying heat exchange medium to the energy storage device 3 .

[0108] Since there may be bubbles in the heat exchange medium, but the existing gas detection method in the heat exchange medium is not perfect, and the exhaust means are limited, it can only rely on after-sales maintenance, and the gas cannot be discharged in time. Under the micro-force of cavitation or bubble rupture, the bubbles may damage components such as water pumps or pipelines, affecting the use effect.

[0109] To solve this problem, Figure 4-Figure 8 As shown, the dehumidification exhaust assembly 2 includes an outer shell 24, a heat exchanger 21, a hot and cold component 22 and a gas-liquid separation component 231. The outer shapes of the outer shell 24 and the heat exchanger 21 are both similar to a rectangular structure. The heat exchanger 21, the hot and cold component 22 and the gas-liquid separation component 231 are arranged in the outer shell 24, and the outer shell 24 plays a role of isolation and protection.

[0110] The hot and cold component 22 is located between the heat exchanger 21 and the gas-liquid separator 231. The gas-liquid separator 231 is provided with a liquid inlet 232, a liquid outlet 233 and an exhaust port 234. The liquid inlet 232 is used for the heat exchange medium to flow in. The gas-liquid separator 231 is configured to separate the heat exchange medium into liquid and gas, and discharge the liquid from the liquid outlet 233 and discharge the gas from the exhaust port 234, so as to dehumidify the installation environment of the energy storage device 3.

[0111] Exemplarily, the gas-liquid separation element 231 is connected to the liquid cooling component 1, specifically, the liquid inlet 232 is connected to the main line 11 of the liquid cooling component 1, the main line 11 transports the heat exchange medium to the liquid inlet 232, and the liquid outlet 233 is connected to the second connecting pipeline 25 of the liquid cooling component 1, so that the liquid formed by the gas-liquid separation of the heat exchange medium is discharged through the liquid outlet 233.

[0112] The dehumidification exhaust component 2 provided in this embodiment, when the installation environment of the energy storage device 3 requires dehumidification, the heat of the high-temperature and high-humidity air and the heat generated in the condensation process are transferred to the gas-liquid separator 231 through the hot and cold component 22. The gas-liquid separator 231 can separate the heat exchange medium flowing in from the liquid inlet 232 into gas and liquid. The liquid outlet 233 is used to discharge the liquid in the heat exchange medium. The heat is taken away by the heat exchange medium flowing through the gas-liquid separator 231 to achieve the purpose of cooling. At the same time, the exhaust port 234 of the gas-liquid separator 231 provides an exhaust channel for the gas in the heat exchange medium, so that the dehumidification exhaust component 2 can realize the exhaust function while realizing the dehumidification function, avoiding the situation where the bubbles in the heat exchange medium damage the water pump or pipeline and other components, extending the service life, and improving the user's use effect.

[0113] The hot and cold element 22 can also be called a thermoelectric cooling sheet. The hot and cold element 22 forms a thermocouple by connecting two different semiconductor materials, N-type semiconductor material and P-type semiconductor material, in series. When current passes through the hot and cold element 22, heat transfer will occur on both sides of the thermocouple, and the heat will be transferred from one end to the other end. The two sides of the thermocouple can absorb and release heat respectively, thereby generating a temperature difference and forming a cold surface and a hot surface to achieve the purpose of cooling.

[0114] Exemplarily, the hot and cold element 22 has a cold surface on one side along the first direction and a hot surface on the other side, and the cold surface and the hot surface are arranged in parallel and spaced apart. The cold surface of the hot and cold element 22 is connected to one of the heat exchanger 21 and the gas-liquid separator 231, and the hot surface of the hot and cold element 22 is connected to the other of the heat exchanger 21 and the gas-liquid separator 231.

[0115] Among them, the first direction is the arrangement direction of the heat exchanger 21, the hot and cold parts 22 and the gas-liquid separation part 231 or the width direction of the dehumidification exhaust component 2 (the first direction is marked with D1), the second direction is the height direction along the dehumidification exhaust component 2 (the second direction is marked with D2), and the third direction is the length direction along the dehumidification exhaust component 2 (the third direction is marked with D3). The first direction, the second direction and the third direction are perpendicular to each other.

[0116] By changing the current of the hot and cold parts 22, switching between the cold and hot surfaces of the hot and cold parts 22 is achieved, so that the cold and hot surfaces of the hot and cold parts 22 are selectively connected to the heat exchanger 21 and the gas-liquid separation element 231 respectively, for switching between dehumidification mode, auxiliary cooling mode and auxiliary heating mode.

[0117] If the humidity of the installation environment of the energy storage device 3 is relatively high, in the dehumidification mode, the hot surface of the cold and hot component 22 is connected to the gas-liquid separator 231, and the cold surface of the cold and hot component 22 is connected to the heat exchanger 21. The heat exchanger 21 condenses the high-temperature and high-humidity air in the installation environment, and transfers the generated heat to the gas-liquid separator 231 through the cold and hot component 22, and absorbs the heat using the heat exchange medium in the gas-liquid separator 231.

[0118] If the temperature of the energy storage device 3 is relatively high, in the auxiliary cooling mode, the cold surface of the cold and hot component 22 is connected to the gas-liquid separator 231, and the hot surface of the cold and hot component 22 is connected to the heat exchanger 21. The heat generated by the energy storage device 3 is transported to the gas-liquid separator 231 through the liquid cooling component 1, and is transferred to the heat exchanger 21 through the cold and hot component 22 for discharge. In this way, the liquid cooling component 1 realizes the main heat dissipation and refrigeration effect of the energy storage device 3, and the gas-liquid separator 231 realizes the auxiliary heat dissipation and refrigeration effect, further improving the heat dissipation effect of the energy storage device 3.

[0119] If the temperature of the energy storage device 3 is relatively low, in the auxiliary heating mode, the hot surface of the cold and hot component 22 is connected to the gas-liquid separator 231, and the cold surface of the cold and hot component 22 is connected to the heat exchanger 21. The temperature of the heat exchanger 21 is lowered by heat dissipation and other methods, so that the hot surface of the cold and hot component 22 can heat the heat exchange medium in the gas-liquid separator 231 for auxiliary heating of the energy storage device 3. In this way, the liquid cooling component 1 realizes the main heating effect of the energy storage device 3, and the gas-liquid separator 231 realizes the auxiliary heating effect, further improving the heating effect of the energy storage device 3.

[0120] By switching the cold and hot surfaces of the hot and cold parts 22, the cooling and heating of the energy storage device 3 and the humidity control of the installation environment of the energy storage device 3 can be met at the same time, and the cooling, heating and dehumidification functions are integrated into the same system to achieve integrated temperature and humidity control, saving floor space and installation costs.

[0121] In one embodiment, the heat exchanger 21 is specifically a condensing heat exchanger. When there is a large amount of high-temperature and high-humidity air in the installation environment of the energy storage device 3, due to the relatively low surface temperature of the heat exchanger 21, the high-humidity air can condense in the heat exchanger 21 to produce condensed water, thereby reducing the humidity of the installation environment of the energy storage device 3.

[0122] For example, Figure 7-Figure 9 As shown, the housing 24 is provided with an air inlet 241 , an air outlet 242 and a condensation water outlet 243 .

[0123] High-temperature and high-humidity air can enter the heat exchanger 21 through the air inlet 241. Using the low temperature on the surface of the heat exchanger 21, the heat exchanger 21 condenses to produce condensed water. The condensation outlet 243 is used to discharge the condensed water, and the air outlet 242 is used to discharge the air condensed by the heat exchanger 21 to ensure air pressure balance and avoid gas blockage in the outer shell 24.

[0124] Specifically, along the second direction, the air inlet 241 is arranged on the top surface of the housing 24, and the condensation outlet 243 is arranged on the bottom surface of the housing 24, so that the condensation water can be directly discharged to the outside through the condensation outlet 243 under the action of its own gravity. Of course, a collection structure can also be arranged at the bottom of the housing 24, and the collection structure is arranged corresponding to the condensation outlet 243 to receive the condensation water flowing out of the condensation outlet 243.

[0125] Specifically, along the first direction, the air outlet 242 is arranged on the side of the outer shell 24 and faces the side of the heat exchanger 21, that is, the air outlet 242 is arranged on the side wall of the outer shell 24 with a relatively large surface area, which is conducive to the discharge of gas, and the air inlet 241, the air outlet 242 and the condensation water outlet 243 are located on different sides of the outer shell 24, and the air intake, air outlet and condensation water outlet processes do not interfere with each other.

[0126] In some other embodiments, the dehumidification exhaust assembly 2 further includes a fan (not shown in the figure), which is disposed in the housing 24 and disposed on the side of the heat exchanger 21 facing the air outlet 242, and the fan is disposed corresponding to the air outlet 242. The use of the fan to guide the air is conducive to the rapid discharge of air from the air outlet 242, thereby improving the exhaust efficiency and thus improving the dehumidification efficiency.

[0127] In one embodiment, the dehumidification exhaust assembly 2 further includes a humidity sensor (not shown in the figure), which is disposed in the housing 24 and is used to detect the humidity in the installation environment.

[0128] In one embodiment, Figure 8 As shown, the dehumidification exhaust assembly 2 also includes a controller 237, which is disposed in the housing 24 and above the heat exchanger 21, and is electrically connected to a humidity sensor. The humidity sensor can be disposed separately from the controller 237, or the humidity sensor can be integrated into the controller 237. The humidity sensor can detect the actual humidity of the installation environment of the energy storage device 3, and transmit the actual humidity information to the controller 237, and the controller 237 controls the start of the dehumidification mode.

[0129] Specifically, Figure 10-11 As shown, the gas-liquid separator 231 is provided with a liquid collecting portion 2311 and a gas collecting portion 2312 , the liquid inlet 232 and the liquid outlet 233 are in communication with the liquid collecting portion 2311 , and the gas collecting portion 2312 is in communication with the gas outlet 234 .

[0130] By providing the liquid collecting part 2311 and the gas collecting part 2312, the liquid and gas in the heat exchange medium are separated when the heat exchange medium flows through the gas-liquid separator 231. The liquid collecting part 2311 provides a flow channel for the liquid in the heat exchange medium, and the gas collecting part 2312 provides a storage space for the gas in the heat exchange medium. While the heat exchange medium is circulated by using a gas-liquid separator 231, the gas-liquid separation of the heat exchange medium is also achieved, so that the function is integrated and the functionality is strong.

[0131] Since the gas in the heat exchange medium will flow upward, along the second direction, the gas collecting portion 2312 is located above at least a portion of the liquid collecting portion 2311 , which helps the gas collecting portion 2312 to collect the gas in the heat exchange medium to a maximum extent.

[0132] In one embodiment, the area of ​​the liquid collecting portion 2311 is smaller than the area of ​​the side of the hot and cold element 22 facing the gas-liquid separator 231. That is, the projection of the liquid collecting portion 2311 on the reference plane is located inside the projection of the hot and cold element 22 on the reference plane. The reference plane is parallel to the second direction, and the reference plane is perpendicular to the third direction. The reference plane is the plane where the second direction and the third direction are located.

[0133] With this arrangement, the hot and cold component 22 can completely cover the liquid collecting portion 2311, so that the heat in the portion of the hot and cold component 22 corresponding to the liquid collecting portion 2311 can be taken away through the liquid collecting portion 2311, thereby lowering the temperature of the installation environment of the energy storage device 3, and also reducing the heat accumulation generated by the dehumidification process, thereby improving the temperature uniformity of the energy storage device 3.

[0134] In one embodiment, the area of ​​the gas collecting portion 2312 is smaller than the area of ​​the side of the hot / cold element 22 facing the gas-liquid separator 231. That is, the projection of the gas collecting portion 2312 on the reference plane is located inside the projection of the hot / cold element 22 on the reference plane.

[0135] With this arrangement, the hot and cold element 22 can completely cover the gas collecting portion 2312, so that the heat of the portion of the hot and cold element 22 corresponding to the gas collecting portion 2312 is directly transferred to the gas collecting portion 2312. Since this part of the heat cannot be taken away by the liquid collecting portion 2311, the temperature of the gas collecting portion 2312 gradually increases. As the temperature of the gas collecting portion 2312 gradually increases, there is a pressure difference between the inside and outside of the gas collecting portion 2312, which facilitates the gas in the gas collecting portion 2312 to be discharged to the outside through the exhaust port 234.

[0136] In one embodiment, the sum of the area of ​​the liquid collecting portion 2311 and the area of ​​the gas collecting portion 2312 is greater than or equal to the area of ​​the side of the cold and hot element 22 facing the gas-liquid separation element 231. In this way, the liquid collecting portion 2311 and the gas collecting portion 2312 can completely cover the entire cold and hot element 22, the liquid collecting portion 2311 can achieve heat exchange with the cold and hot element 22 to the greatest extent possible, and the gas storage space of the gas collecting portion 2312 is also relatively large.

[0137] In one embodiment, the area of ​​the liquid collecting portion 2311 is greater than or equal to the area of ​​the gas collecting portion 2312. The area of ​​the liquid collecting portion 2311 is increased as much as possible to facilitate the heat exchange medium to take away heat and improve the dehumidification efficiency.

[0138] Specifically, Figure 10-11 As shown, the liquid collecting part 2311 is provided with a deceleration structure 2313. The deceleration structure 2313 can be provided on a spoiler of the liquid collecting part 2311, and the spoiler can be a spoiler protrusion or a groove. When the heat exchange medium with bubbles flows through the liquid collecting part 2311, the deceleration structure 2313 plays a role in disturbing the heat exchange medium, realizing the deceleration of the heat exchange medium, separating the bubbles in the heat exchange medium, and preventing the heat exchange medium from flowing too fast to carry away the bubbles, so as to improve the gas-liquid separation effect in the heat exchange medium.

[0139] Specifically, the deceleration structure 2313 includes multiple rows of spoiler groups arranged along the second direction, and the spoiler groups include multiple spoilers arranged at intervals; wherein the number of spoilers in the spoiler group corresponding to the liquid inlet 232 is greater than the number of spoilers in the spoiler group corresponding to the liquid outlet 233.

[0140] Since the flow velocity of the heat exchange medium just flowing out of the liquid inlet 232 is relatively fast, the number of spoilers corresponding to the area near the liquid inlet 232 is relatively large, which can reduce the flow velocity of the heat exchange medium as quickly as possible. Along the direction from the liquid inlet 232 to the liquid outlet 233, the number of spoilers is approximately in a gradually decreasing trend, achieving the effect of gradually slowing down the heat exchange medium, making the flow time of the heat exchange medium in the liquid collecting part 2311 relatively long, increasing the contact time between the heat exchange medium and the cold and hot parts 22, and improving the adequacy of heat exchange.

[0141] Exemplarily, along the second direction and from the liquid inlet 232 to the liquid outlet 233, there are four spoiler groups, the number of spoilers in the first row of spoiler groups is four, the number of spoilers in the second row of spoiler groups is four, and the first row and the second row form a first-stage deceleration; the number of spoilers in the third row of spoiler groups is two, forming a second-stage deceleration, and the number of spoilers in the fourth row of spoiler groups is one, forming a third-stage deceleration.

[0142] It should be noted that the spoiler groups corresponding to each stage of deceleration may be one row or multiple rows; the present embodiment does not limit the number of rows of spoiler groups and the number of spoilers in each row of spoiler groups, which may be adjusted according to actual production conditions.

[0143] In one embodiment, the projected area of ​​the gas collecting portion 2312 on the reference plane gradually increases along the second direction and from the liquid inlet 232 to the exhaust port 234. With such a configuration, since the gas after the gas-liquid separation of the heat exchange medium easily flows upward, the space of the gas collecting portion 2312 corresponding to the exhaust port 234 is relatively large, which is convenient for gas collection and direct gas discharge.

[0144] It can be understood that the areas of the liquid collecting part 2311 and the gas collecting part 2312 are changed in opposite directions. For example, in the direction from the liquid inlet 232 to the liquid outlet 233, the gas-liquid separator 231 has a diagonal line, the part below the diagonal line is the liquid collecting part 2311, and the part above the diagonal line is the gas collecting part 2312. The areas of the gas collecting part 2312 and the liquid collecting part 2311 are equal, and both are half of the area of ​​the gas-liquid separator 231. It can also be that the liquid collecting part 2311 is similar to an L-shaped structure, and the gas collecting part 2312 is similar to an inverted L-shaped structure. It can also be that the liquid collecting part 2311 is a stepped structure, and the gas collecting part 2312 is an inverted stepped structure. This embodiment does not limit the area shape of the liquid collecting part 2311 and the gas collecting part 2312. As long as the liquid collecting part 2311 and the gas collecting part 2312 are interlocked with each other, it is beneficial to the spatial arrangement and optimization of the gas-liquid separator 231, which is within the protection scope of this embodiment.

[0145] In one embodiment, Figure 10-11 As shown, the dehumidification exhaust assembly 2 also includes a temperature sensor 235 and a control valve 236. The controller 237 is electrically connected to the temperature sensor 235. Specifically, one end of the temperature sensor 235 is electrically connected to the controller 237 through a temperature acquisition line, and the other end is abutted against the gas-liquid separator 231 corresponding to the gas collecting part 2312. The temperature sensor 235 is used to detect the temperature in the gas-liquid separator 231 corresponding to the gas collecting part 2312. The controller 237 is electrically connected to the control valve 236. Specifically, the control valve 236 is electrically connected to the controller 236 through a control line. The control valve 236 is arranged at the exhaust port 234 to control the opening and closing of the exhaust port 234.

[0146] When the gas after gas-liquid separation in the heat exchange medium gradually increases, the gas will gather in the gas collecting part 2312 to form an air cavity. Since the heat generated by the cold and hot parts 22 cannot be taken away by the gas collecting part 2312, the temperature gradually increases with the increase of air in the gas collecting part 2312. The temperature sensor 235 detects the actual temperature of the gas collecting part 2312 and transmits the temperature information to the controller 237. The controller 237 controls the control valve 236 to open, so as to open the exhaust port 234 for exhaust.

[0147] like Fig.12 As shown, this embodiment also provides a dehumidification and exhaust method for controlling the above-mentioned dehumidification and exhaust component 2. The dehumidification and exhaust method includes the following steps:

[0148] S1, start the dehumidification mode, connect the cold surface of the cold and hot element 22 to the heat exchanger 21, and connect the hot surface of the cold and hot element 22 to the gas-liquid separation element 231;

[0149] S2, using the heat exchanger 21 to condense the high-temperature and high-humidity air in the installation environment of the energy storage device 3, and transferring the generated heat to the gas-liquid separation element 231 through the hot and cold element 22;

[0150] S3. The heat exchange medium flows into the liquid inlet 232 and passes through the gas-liquid separator 231 for gas-liquid separation, so that the liquid outlet 233 discharges the liquid in the heat exchange medium, and the gas outlet 234 discharges the gas in the heat exchange medium, and the heat is absorbed and taken away by the liquid flowing through the gas-liquid separator 231.

[0151] It can be understood that the high temperature and high humidity air has a certain humidity and temperature. The high temperature and high humidity air is condensed by the heat exchanger 21 to form condensed water and discharged from the condensation outlet 243 to reduce the humidity of the high temperature and high humidity air. The high temperature heat of the high temperature and high humidity air and the heat generated during the condensation process are transferred to the gas-liquid separation element 231 through the hot and cold element 22. The heat is taken away in the process of the heat exchange medium flowing through the liquid collecting part 2311 of the gas-liquid separation element 231, so as to achieve the purpose of reducing the temperature of the high temperature and high humidity air.

[0152] The dehumidification and exhaust method provided in this embodiment, if the humidity of the installation environment of the energy storage device 3 is relatively high, when the dehumidification mode is started, since the hot surface of the cold and hot component 22 is connected to the gas-liquid separator 231, and the cold surface of the cold and hot component 22 is connected to the heat exchanger 21, the heat exchanger 21 condenses the high-temperature and high-humidity air in the installation environment, and transfers the generated heat to the gas-liquid separator 231 through the cold and hot component 22, the heat exchange medium flows in from the liquid inlet 232 and passes through the gas-liquid separator 231 for gas-liquid separation, so that the liquid in the heat exchange medium is discharged from the liquid outlet 233, and the heat generated during the dehumidification process can be taken away by the liquid cooling component 1, avoiding the situation that heat accumulation is caused by temperature difference inside the energy storage device 3, and improving the uniformity of the energy storage device 3. The exhaust port 234 discharges the gas in the heat exchange medium, and while realizing the dehumidification function, it can also realize the exhaust function, avoiding the situation that the bubbles in the heat exchange medium damage the water pump or pipeline and other components, extending the service life, and improving the user's use effect.

[0153] In one embodiment, before starting the dehumidification mode, the exhaust mode is started to control the exhaust port 234 of the gas-liquid separator 231 to discharge the gas in the heat exchange medium.

[0154] In this way, if the gas has accumulated in the gas collecting part 2312 before the dehumidification mode starts, the dehumidification exhaust component 2 performs exhaust processing in advance to achieve exhaust pre-operation to improve the dehumidification efficiency. It is understood that the exhaust operation of the dehumidification exhaust component 2 includes but is not limited to the dehumidification mode, which improves the timeliness of exhaust and avoids the accumulation of gas.

[0155] In one embodiment, the following steps are included before the exhaust port 234 discharges the gas in the heat exchange medium:

[0156] Obtaining the actual temperature T of the gas-liquid separation element 231 corresponding to the gas collecting portion 2312 and the actual liquid outlet temperature T′ of the liquid outlet 233 ;

[0157] Compare the difference between the actual temperature T and the actual liquid outlet temperature T', the first preset temperature T1 and the second preset temperature T2;

[0158] When T-T'≥T1, the exhaust mode is started to control the exhaust port 234 of the dehumidification exhaust component 2 to open and discharge the gas in the heat exchange medium;

[0159] When T-T'≤T2, the exhaust mode is turned off to control the exhaust port 234 of the dehumidification exhaust component 2 to be closed.

[0160] Specifically, Fig.13 As shown, before discharging the gas in the heat exchange medium, the following steps are included:

[0161] S11, determine whether T-T'≥T1 is satisfied, if so, execute S12;

[0162] S12, start exhaust mode;

[0163] S13, determine whether T-T'≤T2 is satisfied, if so, execute S14, if not, return to S12;

[0164] S14. Turn off the exhaust mode.

[0165] Specifically, T2 can be selected as 3°C, and T1 can be selected as 6°C. If the difference between the actual temperature T and the actual liquid outlet temperature T' is greater than or equal to 6°C, it means that the temperature difference is relatively large, the total amount of gas in the gas collecting section 2312 is relatively large, and the exhaust mode needs to be started. At this time, the controller 237 controls the control valve 236 to open, so that the gas in the gas collecting section 2312 is discharged in time through the exhaust port 234. If the difference between the actual temperature T and the actual liquid outlet temperature T' is less than or equal to 3°C, it means that the temperature difference is relatively small, the total amount of gas in the gas collecting section 2312 is relatively small, and the exhaust mode does not need to be started.

[0166] After the exhaust mode is started, when T2<T-T'<T1, the exhaust mode is started to control the exhaust port 234 of the dehumidification exhaust component 2 to open and discharge the gas in the heat exchange medium.

[0167] Specifically, after starting the exhaust mode, if the difference between the actual temperature T and the actual liquid outlet temperature T' is in the range between 3°C and 6°C, it means that the gas collecting section 2312 is in a stage where gas is gradually accumulating. At this time, the exhaust mode is started, and the gas in the gas collecting section 2312 is discharged through the exhaust port 234, thereby improving the timeliness of the exhaust to ensure that the gas collecting section 2312 has sufficient gas storage space.

[0168] It should be noted that, although the exhaust mode is activated when T-T'≥T1 and T1<T-T'<T2, it cannot be simply considered that T2 is the dividing point for whether to turn on the exhaust mode. The reason is that, during the gradual increase in the actual temperature in the gas collecting section 2312, if the temperature difference of T-T' is near T2, the control valve 236 will be frequently opened and closed, shortening the service life of the control valve 236 and easily generating noise. Only after the condition of T-T'≥T1 is met and the exhaust mode is turned on, the exhaust mode will be activated when T2<T-T'<T1, so as to reduce the number of times the control valve 236 is opened and closed and the noise of opening and closing, and extend the service life of the control valve 236.

[0169] In one embodiment, the following steps are included before starting the dehumidification mode:

[0170] Obtaining the actual humidity RH of the installation environment of the energy storage device 3;

[0171] Comparing the actual humidity RH, the first preset humidity RH1 and the second preset humidity RH2, wherein RH2≤RH1;

[0172] When RH≥RH1, the dehumidification mode is started, so that the dehumidification exhaust assembly 2 dehumidifies the installation environment of the energy storage device 3;

[0173] When RH≤RH2, the dehumidification mode is turned off, so that the dehumidification exhaust assembly 2 stops dehumidifying the installation environment of the energy storage device 3.

[0174] Specifically, Fig.14 As shown, the following steps are included before starting the dehumidification mode:

[0175] S21, determine whether RH≥RH1 is satisfied, if so, execute S22;

[0176] S22, start the dehumidification mode;

[0177] S23, determine whether RH≤RH2 is satisfied, if so, execute S24; if not, return to S22;

[0178] S24. Turn off the dehumidification mode.

[0179] Specifically, RH2 can be selected as 45%, and RH1 can be selected as 65%. If the actual humidity RH is greater than or equal to 65%, it means that the humidity of the installation environment of the energy storage device 3 is relatively high, and the dehumidification mode needs to be started, and the dehumidification exhaust assembly 2 is used to dehumidify the installation environment of the energy storage device 3 to achieve the purpose of reducing the humidity of the installation environment. If the actual humidity RH is less than or equal to 45%, it means that the humidity of the installation environment of the energy storage device 3 is relatively low, and the dehumidification mode does not need to be started.

[0180] After the dehumidification mode is started, when RH2<T−T′<RH1, the dehumidification mode is started to enable the dehumidification exhaust assembly 2 to dehumidify the installation environment of the energy storage device 3 .

[0181] Specifically, after starting the dehumidification mode, if the actual humidity RH is in the range between 45% and 65%, it means that the installation environment is in a stage where the humidity is gradually increasing. At this time, starting the dehumidification mode can improve the timeliness of dehumidification and avoid the risk of damage to the energy storage device 3 due to high humidity air.

[0182] It should be noted that although the dehumidification mode is activated when RH≥RH1 and RH2<RH<RH1, it cannot be simply considered that RH2 is the dividing point for whether to turn on the dehumidification mode. The reason is that when the actual temperature in the air collecting section 2312 gradually increases, if the actual humidity RH is near RH2, the dehumidification exhaust component 2 will be frequently turned on and off. Only after the condition of RH≥RH1 is met and the dehumidification mode is turned on, the dehumidification mode will be activated when RH1<RH<RH2, so as to reduce the number of times the dehumidification exhaust component 2 is turned on and the noise of opening and closing, and extend the service life of the dehumidification exhaust component 2.

[0183] When the temperature of the energy storage device 3 is too high or too low, if the energy storage device 3 exchanges heat only through the liquid cooling component 1 , insufficient heat exchange will occur, which will affect the service life of the energy storage device 3 .

[0184] To this end, when the dehumidification mode is started and / or after the dehumidification mode is started, the following steps are also included: using the dehumidification exhaust assembly 2 to perform auxiliary heat exchange on the energy storage device 3.

[0185] In this way, when the temperature of the energy storage device 3 is too high or too low, the energy storage device 3 can mainly exchange heat through the liquid cooling component 1, and the dehumidification and exhaust component 2 can perform auxiliary heat exchange on the energy storage device 3, thereby increasing the heat exchange effect and improving the reliability of the energy storage device 3. At the same time, the dehumidification and exhaust component 2 can take into account both the dehumidification and exhaust function and the auxiliary heat exchange function, and has strong functionality.

[0186] In one embodiment, the method further includes the following steps before the auxiliary heat exchange:

[0187] Obtaining the maximum temperature Tmax of the energy storage device 3;

[0188] Compare the maximum temperature Tmax, the third preset temperature T3 and the fourth preset temperature T4; wherein T3 ≥ T4;

[0189] When Tmax≥T3, the auxiliary cooling mode is started to allow the dehumidification exhaust assembly 2 to dissipate heat from the energy storage device 3;

[0190] When Tmax≤T4, turn off the auxiliary cooling mode.

[0191] Specifically, Fig.13 As shown, the following steps are also included before the auxiliary heat exchange:

[0192] S25, determine whether Tmax≥T3 is satisfied, if so, execute S251; if not, execute S26;

[0193] S251, start auxiliary cooling mode;

[0194] S252, determine whether Tmax≤T4 is satisfied, if so, execute S253; if not, return to S251;

[0195] S253: Turn off the auxiliary cooling mode.

[0196] Specifically, T4 can be selected as 35°C, and T3 can be selected as 40°C. If the actual maximum temperature Tmax is greater than or equal to 40°C, it means that the maximum temperature of the energy storage device 3 is relatively high, and the auxiliary cooling mode needs to be started, and the dehumidification exhaust component 2 is used to perform auxiliary cooling on the energy storage device 3 to achieve the purpose of lowering the temperature of the energy storage device 3. If the actual maximum temperature Tmax is less than or equal to 35°C, it means that the maximum temperature of the energy storage device 3 is relatively low, and the auxiliary cooling mode does not need to be started.

[0197] After the auxiliary cooling mode is started, when T3<Tmax<T4, the auxiliary cooling mode is started to enable the dehumidification exhaust assembly 2 to perform auxiliary cooling on the energy storage device 3.

[0198] Specifically, after starting the auxiliary cooling mode, if the actual maximum temperature Tmax is in the range between 35°C and 40°C, it means that the energy storage device 3 is in a stage where the temperature is gradually increasing. At this time, the auxiliary cooling mode is started to assist in cooling the energy storage device 3 to ensure the reliability of the energy storage device 3.

[0199] It should be noted that although the auxiliary cooling mode is activated when Tmax≥T3 and T4<Tmax<T3, it cannot be simply assumed that T4 is the dividing point for whether to turn on the auxiliary cooling mode. The reason is that in the process of the temperature of the energy storage device 3 gradually rising, if the actual maximum temperature Tmax is near T4, the cooling demand can be met by the liquid cooling component 1 alone, and there is no need to frequently open and close the dehumidification exhaust component 2. Only after the condition of Tmax≥T3 is met and the auxiliary cooling mode is turned on, the auxiliary cooling mode will be activated when T3<Tmax<T4. The cooling demand cannot be met by the liquid cooling component 1 alone, and the dehumidification exhaust component 2 is used to play the role of auxiliary cooling, thereby improving the cooling effect, reducing the number of times the dehumidification exhaust component 2 is opened and the noise of opening and closing, and extending the service life of the dehumidification exhaust component 2.

[0200] In one embodiment, the auxiliary cooling mode includes the following steps:

[0201] Connect the hot surface of the hot and cold element 22 to the heat exchanger 21, and connect the cold surface of the hot and cold element 22 to the gas-liquid separation element 231;

[0202] The heat generated by the energy storage device 3 is transported to the gas-liquid separation element 231 through the liquid cooling component 1, and is transferred to the heat exchanger 21 through the cold and hot element 22 for discharge.

[0203] Specifically, when the dehumidification exhaust component 2 is switched to the auxiliary cooling mode, the controller 237 switches the power supply current direction of the cold and hot components 22 to switch the cold and hot components 22. The cold surface of the cold and hot components 22 is connected to the gas-liquid separator 231 of the gas-liquid separator 231, and the gas-liquid separator 231 is the cooling surface. The hot surface of the cold and hot components 22 is connected to the heat exchanger 21, and the heat exchanger 21 is the heat dissipation surface. The heat of the heat exchange medium flowing through the gas-liquid separator 231 is transferred to the heat exchanger 21 through the cold and hot components 22, and the heat exchanger 21 realizes the discharge of heat. In this way, the cold amount provided by the dehumidification exhaust component 2 can further reduce the temperature of the heat exchange medium to achieve the auxiliary cooling effect of the energy storage device 3.

[0204] In one embodiment, the method further includes the following steps before the auxiliary heat exchange:

[0205] Obtaining the minimum temperature Tmin of the energy storage device 3;

[0206] Comparing the minimum temperature Tmin, the fifth preset temperature T5 and the sixth preset temperature T6, wherein T5≤T6;

[0207] When Tmin≤T5, the auxiliary heating mode is started, so that the dehumidification exhaust assembly 2 heats the energy storage device 3;

[0208] When Tmin≥T6, turn off the auxiliary heating mode.

[0209] Specifically, Fig.13 As shown, the following steps are also included before the auxiliary heat exchange:

[0210] S26, determine whether Tmin≤T5 is satisfied, if so, execute S261;

[0211] S261, start auxiliary heating mode;

[0212] S262, determine whether Tmin≥T6 is satisfied, if so, execute S263; if not, return to S261;

[0213] S263. Turn off the auxiliary heating mode.

[0214] Specifically, T5 can be selected as 12°C, and T6 can be selected as 15°C. If the actual minimum temperature Tmin of the energy storage device 3 is less than or equal to 12°C, it means that the minimum temperature of the energy storage device 3 is relatively low, and the auxiliary heating mode needs to be started, and the auxiliary heating exhaust component is used to perform auxiliary heating on the energy storage device 3 to achieve the purpose of increasing the temperature of the energy storage device 3. If the actual minimum temperature Tmin is greater than or equal to 15°C, it means that the minimum temperature of the energy storage device 3 is relatively high, and the auxiliary heating mode does not need to be started.

[0215] After the auxiliary heating mode is started, when T5<Tmin<T6, the auxiliary heating mode is started to enable the dehumidification exhaust assembly 2 to perform auxiliary heating on the energy storage device 3.

[0216] Specifically, after starting the auxiliary heating mode, if the actual minimum temperature Tmin is in the range between 12°C and 15°C, it means that the energy storage device 3 is in a stage where the temperature is gradually increasing. At this time, the auxiliary heating mode is started for auxiliary heating of the energy storage device 3 to ensure the reliability of the use of the energy storage device 3.

[0217] It should be noted that, although the auxiliary heating mode is activated when Tmin≤T5 and T5<Tmin<T6, it cannot be simply considered that T6 is the dividing point for whether to turn on the auxiliary heating mode. The reason is that, during the gradual increase in the temperature of the energy storage device 3, if the actual minimum temperature Tmin is near T6, the heating demand can be met by the liquid cooling component 1 alone, and there is no need to frequently turn on and off the dehumidification exhaust component 2. Only after the condition of Tmin≤T5 is met and the auxiliary heating mode is turned on, the auxiliary heating mode will be activated when T6<Tmin<T5. At this time, the heating demand cannot be met by the liquid cooling component 1 alone, and the dehumidification exhaust component 2 is used to play the role of auxiliary heating, thereby improving the heating effect, reducing the number of times the dehumidification exhaust component 2 is opened and the noise of opening and closing, and extending the service life of the dehumidification exhaust component 2.

[0218] In one embodiment, the auxiliary heating mode includes the following steps:

[0219] Connect the cold surface of the hot and cold element 22 to the heat exchanger 21, and connect the hot surface of the hot and cold element 22 to the gas-liquid separation element 231;

[0220] The temperature of the heat exchanger 21 is controlled to decrease so that the hot surface of the cold and hot element 22 can heat the heat exchange medium in the gas-liquid separation element 231 for auxiliary heating of the energy storage device 3 .

[0221] Specifically, when the dehumidification exhaust component 2 is switched to the auxiliary heating mode, the controller 237 switches the power supply current direction of the semiconductor heating plate to switch the cold surface and the hot surface of the semiconductor heating plate. The hot surface of the semiconductor heating plate is connected to the gas-liquid separator 231 of the gas-liquid separator 231, and the cold surface of the hot and cold component 22 is connected to the heat exchanger 21. The temperature of the heat exchanger 21 is controlled to decrease, so that the temperature of the cold surface on one side of the hot and cold component 22 decreases, and the temperature of the hot surface on the other side of the hot and cold component 22 increases. Heat exchange is performed between the hot surface of the hot and cold component 22 and the gas-liquid separator 231, so that the temperature of the heat exchange medium flowing through the liquid collecting part 2311 increases. In this way, the heat provided by the dehumidification exhaust component 2 can further increase the temperature of the heat exchange medium to achieve the auxiliary heating effect of the energy storage device 3.

[0222] It should be noted that the embodiments of the present invention are shown in the drawings and described in this specification is only an example of the principle of the present invention. It should be clearly understood by those skilled in the art that the principle of the present invention is not limited to any details or any components of the device shown in the drawings or described in the specification.

[0223] It should be understood that the present invention is not limited in its application to the detailed structure and arrangement of the components proposed in this specification. The present invention can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned variations and modifications fall within the scope of the present invention. It should be understood that the present invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for implementing the present invention and will enable those skilled in the art to utilize the present invention.

[0224] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed by the present invention. The specification and example embodiments are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

[0225] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of protection of the present invention is limited only by the appended claims.

Claims

1. A dehumidification exhaust assembly, characterized in that: include: A heat exchanger, a hot and cold component and a gas-liquid separator, wherein the hot and cold component is located between the heat exchanger and the gas-liquid separator, the gas-liquid separator is provided with a liquid inlet, a liquid outlet and an exhaust port, the liquid inlet is used for the flow of heat exchange medium, the gas-liquid separator is configured to separate the heat exchange medium into liquid and gas, and discharge the liquid from the liquid outlet, and discharge the gas from the exhaust port.

2. The dehumidification exhaust assembly according to claim 1, characterized in that: Along the first direction, one side of the hot and cold element has a cold surface, and the other side has a hot surface, the cold surface and the hot surface are arranged in parallel and spaced apart, the cold surface of the hot and cold element is connected to one of the heat exchanger and the gas-liquid separator, and the hot surface of the hot and cold element is connected to the other of the heat exchanger and the gas-liquid separator.

3. The dehumidification exhaust assembly according to claim 1, characterized in that: The dehumidification exhaust assembly also includes: The shell has an air inlet, an air outlet and a condensation outlet.

4. The dehumidification exhaust assembly according to claim 3, characterized in that: Along the second direction, the air inlet is arranged on the top surface of the shell, and the condensation water outlet is arranged on the bottom surface of the shell; And / or, along the first direction, the air outlet is arranged on the side of the housing and faces the heat exchanger; Among them, the first direction and the second direction are perpendicular to each other, the first direction is the arrangement direction of the heat exchanger, the hot and cold parts and the gas-liquid separation part or the width direction of the dehumidification exhaust assembly, and the second direction is the height direction along the dehumidification exhaust assembly.

5. The dehumidification exhaust assembly according to claim 3, characterized in that: The dehumidification exhaust assembly also includes: The humidity sensor is arranged in the housing.

6. The dehumidification exhaust assembly according to claim 3, characterized in that: The gas-liquid separator is provided with a liquid collecting part and a gas collecting part, the liquid inlet and the liquid outlet are in communication with the liquid collecting part, and the gas collecting part is in communication with the gas outlet; Wherein, along the second direction, the gas collecting portion is located above at least a portion of the liquid collecting portion; Wherein, the second direction is along the height direction of the dehumidification exhaust assembly.

7. The dehumidification exhaust assembly according to claim 6, characterized in that: The area of ​​the liquid collecting portion is smaller than the area of ​​the side surface of the hot and cold element facing the gas-liquid separation element; And / or, the area of ​​the gas collecting portion is smaller than the area of ​​the side surface of the hot and cold element facing the gas-liquid separation element; and / or, the sum of the area of ​​the liquid collecting portion and the area of ​​the gas collecting portion is greater than or equal to the area of ​​the side surface of the hot and cold element facing the gas-liquid separation element; And / or, the area of ​​the liquid collecting part is greater than or equal to the area of ​​the gas collecting part.

8. The dehumidification exhaust assembly according to claim 6, characterized in that: The liquid collecting portion is provided with a speed reducing structure.

9. The dehumidification exhaust assembly according to claim 8, characterized in that: The deceleration structure comprises a plurality of rows of spoiler groups arranged along the second direction, and the spoiler groups comprise a plurality of spoilers arranged at intervals; Wherein, the number of spoilers in the spoiler group corresponding to the liquid inlet is greater than the number of spoilers in the spoiler group corresponding to the liquid outlet.

10. The dehumidification exhaust assembly according to claim 6, characterized in that: The dehumidification exhaust assembly also includes: A control valve, disposed at the exhaust port, for controlling the opening and closing of the exhaust port; A controller, electrically connected to the hot and cold parts and the control valve; A temperature sensor has one end electrically connected to the controller and the other end abutting against the gas-liquid separator corresponding to the gas collecting portion, and is used to detect the temperature of the gas-liquid separator corresponding to the gas collecting portion.

11. An energy storage system, characterized in that: It comprises an energy storage device, a liquid cooling component and the dehumidification exhaust component according to any one of claims 1 to 10, the liquid cooling component is connected to the energy storage device and is used for heat exchange of the energy storage device, the liquid cooling component is connected to the liquid inlet of the dehumidification exhaust component and is used for conveying the heat exchange medium to the liquid inlet, and the dehumidification exhaust component is connected to the energy storage device and is used for dehumidifying the installation environment of the energy storage device.

12. A dehumidification exhaust method, characterized in that: Used to control the dehumidification exhaust assembly according to any one of claims 1 to 10, the dehumidification exhaust method comprises the following steps: Start the dehumidification mode, connect the cold surface of the hot and cold parts to the heat exchanger, and connect the hot surface of the hot and cold parts to the gas-liquid separator; The high-temperature and high-humidity air in the installation environment of the energy storage device is condensed by a heat exchanger, and the generated heat is transferred to the gas-liquid separation component through the hot and cold components; The heat exchange medium flows into the liquid inlet and passes through the gas-liquid separator to separate the gas and liquid, so that the liquid outlet discharges the liquid in the heat exchange medium, and the gas outlet discharges the gas in the heat exchange medium, and the heat is absorbed and taken away by the liquid flowing through the gas-liquid separator.

13. The dehumidification exhaust method according to claim 12, characterized in that: Before starting the dehumidification mode, the exhaust mode is started to control the exhaust port of the gas-liquid separation element to discharge the gas in the heat exchange medium.

14. The dehumidification exhaust method according to claim 12 or 13, characterized in that: The following steps are included before the gas in the heat exchange medium is discharged at the exhaust port: Obtaining the actual temperature T of the gas-liquid separation element corresponding to the gas collecting portion and the actual liquid outlet temperature T' of the liquid outlet; Compare the difference between the actual temperature T and the actual liquid outlet temperature T', the first preset temperature T1 and the second preset temperature T2; When T-T'≥T1, the exhaust mode is started to control the exhaust port of the dehumidification exhaust component to open and discharge the gas in the heat exchange medium; When T-T'≤T2, the exhaust mode is turned off to control the exhaust port of the dehumidification exhaust component to be closed; After the exhaust mode is started, when T2<T-T'<T1, the exhaust mode is started to control the exhaust port of the dehumidification exhaust component to open and discharge the gas in the heat exchange medium; Among them, T2≤T1.

15. The dehumidification exhaust method according to claim 12 or 13, characterized in that: Before starting the dehumidification mode, include the following steps: Obtain the actual humidity RH of the installation environment of the energy storage device; Compare the actual humidity RH, the first preset humidity RH1 and the second preset humidity RH2; When RH≥RH1, the dehumidification mode is started, so that the dehumidification exhaust assembly dehumidifies the installation environment of the energy storage device; When RH≤RH2, the dehumidification mode is turned off, so that the dehumidification exhaust assembly stops dehumidifying the installation environment of the energy storage device; After the dehumidification mode is started, when RH2<T-T'<RH1, the dehumidification mode is started so that the dehumidification exhaust assembly dehumidifies the installation environment of the energy storage device; Among them, RH2≤RH1.

16. The dehumidification and exhaust method according to claim 12, characterized in that: When the dehumidification mode is started and / or after the dehumidification mode is started, the following steps are also included: The dehumidification exhaust assembly is used to assist the heat exchange of the energy storage device.

17. The dehumidification exhaust method according to claim 16, characterized in that: The following steps are also included before the auxiliary heat exchange: Obtain the maximum temperature Tmax of the energy storage device; comparing the maximum temperature Tmax, the third preset temperature T3 and the fourth preset temperature T4; When Tmax≥T3, the auxiliary cooling mode is started to allow the dehumidification exhaust assembly to dissipate heat from the energy storage device; When Tmax≤T4, turn off the auxiliary cooling mode; After the auxiliary cooling mode is started, when T4<Tmax<T3, the auxiliary cooling mode is started to enable the dehumidification exhaust assembly to perform auxiliary cooling on the energy storage device; Among them, T3≥T4.

18. The dehumidification exhaust method according to claim 17, characterized in that: The auxiliary cooling mode comprises the following steps: Connect the hot surface of the hot and cold parts to the heat exchanger, and connect the cold surface of the hot and cold parts to the gas-liquid separation part; The heat generated by the energy storage device is transported to the gas-liquid separation element through the liquid cooling component, and is transferred to the heat exchanger through the hot and cold elements for discharge.

19. The dehumidification exhaust method according to claim 16, characterized in that: The following steps are also included before the auxiliary heat exchange: Obtain the minimum temperature Tmin of the energy storage device; comparing the minimum temperature Tmin, the fifth preset temperature T5, and the sixth preset temperature T6; When Tmin≤T5, the auxiliary heating mode is started to enable the dehumidification exhaust assembly to heat the energy storage device; When Tmin≥T6, turn off the auxiliary heating mode; After the auxiliary heating mode is started, when T5<Tmin<T6, the auxiliary heating mode is started, so that the dehumidification exhaust assembly performs auxiliary heating on the energy storage device; Among them, T5≤T6.

20. The dehumidification exhaust method according to claim 19, characterized in that: The auxiliary heating mode comprises the following steps: Connect the cold surface of the hot and cold parts to the heat exchanger, and connect the hot surface of the hot and cold parts to the gas-liquid separation part; The temperature of the heat exchanger is controlled to decrease so that the hot surface of the cold and hot parts can heat the heat exchange medium in the gas-liquid separation part for auxiliary heating of the energy storage device.

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