A temperature regulating device for energy storage battery module and a control method thereof

Abstract

The present invention provides a temperature control device for an energy storage battery module, comprising: a battery case, a battery module unit, a gas temperature control device, a liquid temperature control device, a dehumidification device, a detection device and a control device; the battery case is provided with a battery module unit, and the battery module unit is provided with a single battery; the gas temperature control device is used to adjust the temperature in the battery case, the liquid temperature control device is used to adjust the temperature of the single battery, the dehumidification device is used to dehumidify the gas medium in the battery case, the detection device is used to detect the temperature of the single battery and the humidity in the battery case in real time, and the control device adjusts the working states of the gas temperature control device, the dehumidification device and the liquid temperature control device in real time according to the temperature and humidity information; the present application can adjust the working states of the gas temperature control device, the liquid temperature control device and the dehumidification device according to the temperature and humidity information, so that the single battery is always maintained in a set temperature range, and condensation in the battery case can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a temperature regulating device for an energy storage battery module and a control method thereof. Background Art

[0002] At present, the power battery industry mostly forms battery modules by arranging multiple battery cells in parallel in a row, and then fixing the arranged battery cells with end plates and side plates. These are widely used in electric vehicles, electric vehicles and even energy storage power stations. When charging and discharging, the battery module generates a lot of heat, and it is not easy to dissipate the heat quickly, which will affect the service life of the energy storage battery module and may even cause accidents. Therefore, it is very necessary to use a temperature control device to cool the battery module so that the battery module is always in a suitable temperature range.

[0003] Common cooling methods include natural heat dissipation, air cooling and liquid cooling. Due to the high density of battery cells in the battery module, the cooling effect through external air is generally poor, and liquid cooling has a better cooling effect. Traditional battery thermal management technology usually cools the battery by wrapping liquid pipes around the solid-state battery. However, this method also has disadvantages. First, it cannot guarantee the uniformity of battery temperature, and local temperature imbalance is prone to occur, resulting in rapid degradation of battery performance and reducing the cycle life of the battery module; second, the liquid pipes are often long and have large curvatures, which are not conducive to the rapid flow of liquid, reducing the cooling effect and increasing energy consumption; third, condensation is easy to form on the surface of the battery module during liquid cooling; fourth, in a low temperature environment, external energy needs to be converted into heat energy to make the single battery or module work in a suitable temperature range. This situation is particularly important when the system is started. Summary of the Invention

[0004] In view of this, the present invention is proposed:

[0005] One of the problems solved by the present invention is that the gas temperature control device of the energy storage battery module has poor temperature control effect. The second problem solved is that the liquid temperature control device of the energy storage battery module cannot ensure the uniformity of the battery temperature. The third problem solved is that condensation is easy to form on the surface of the battery module during liquid cooling. The fourth problem solved is that the temperature control device of the energy storage battery module cannot adjust the temperature of the battery module unit in real time according to the temperature changes of the single battery in the battery module unit, so that the single battery always remains in the set temperature range.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] A temperature control device for an energy storage battery module, comprising: a battery box, a battery module unit, a gas temperature control device, a liquid temperature control device, a dehumidification device, a detection device, and a control device;

[0008] The control device is electrically connected to the gas temperature control device, the dehumidification device, the liquid temperature control device and the detection device respectively;

[0009] The battery box is provided with a battery module unit, and the battery module unit is provided with a single battery;

[0010] The gas supply end of the gas temperature regulating device is connected to the air inlet of the battery box through a pipeline, and the gas return end of the gas temperature regulating device is connected to the exhaust port of the battery box through a pipeline;

[0011] The gas temperature control device is used to adjust the ambient temperature inside the battery box, the liquid temperature control device is used to adjust the temperature of the single battery, the dehumidification device is arranged on the gas temperature control pipeline, and is used to dehumidify the gas medium in the pipeline. The detection device is used to detect the temperature of the single battery and the humidity inside the battery box in real time and transmit the information to the control device. The control device adjusts the working status of the gas temperature control device, the dehumidification device and the liquid temperature control device in real time according to the temperature and humidity information.

[0012] The temperature control device of the energy storage battery module in the present application can not only heat or cool the single battery but also enhance the gas temperature control effect by setting up an independent gas temperature control device and a liquid temperature control device. By setting up a dehumidification device, the gas medium in the battery box can be dehumidified. The control device can adjust the working status of the gas temperature control device, the liquid temperature control device and the dehumidification device according to the real-time temperature and humidity information fed back by the detection device. This setting can not only enable the single battery to always maintain the set temperature range, but also avoid condensation in the battery box.

[0013] Furthermore, the gas temperature control device includes a first air supply device, a gas heating device and a gas cooling device, wherein the first air supply device is used to promote the flow of the gas medium in the gas pipeline, the gas heating device is used to heat the gas medium in the gas pipeline, and the gas cooling device is used to cool the gas medium in the gas pipeline;

[0014] The first air supply device, the gas heating device and the gas cooling device are arranged in sequence along the flow direction of the gas medium.

[0015] This setting can not only heat or cool the gas medium, accelerate the circulation of the gas medium, enhance the temperature regulation effect of the gas temperature regulating device, but also prevent the temperature of the gas medium in the device from being affected by the external environment.

[0016] Furthermore, the liquid temperature control device includes a liquid delivery device, a liquid heating device and a liquid cooling device, wherein the liquid delivery device is used to promote the flow of the liquid medium in the pipeline, the liquid heating device is used to heat the liquid medium in the pipeline, and the liquid cooling device is used to cool the liquid medium in the pipeline;

[0017] The liquid heating device, liquid feeding device and liquid cooling device are arranged in sequence along the flow direction of the liquid medium;

[0018] The liquid supply end of the liquid temperature regulating device is communicated with the liquid inlet of the battery module unit through a pipeline, and the liquid return end of the liquid temperature regulating device is communicated with the liquid discharge port of the battery module unit through a pipeline.

[0019] This setting can not only heat or cool the battery module unit, but also enhance the temperature regulation effect by accelerating the flow rate of the liquid medium.

[0020] Furthermore, the dehumidification device includes a reaction device and a second air supply device, the reaction device is arranged on the gas pipeline, and the second air supply device pushes the gas medium to enter the gas temperature control device after being dehumidified by the reaction device;

[0021] The reaction device includes a reaction chamber, a filter and a driver. The reaction chamber includes a dehumidification chamber, a drying chamber and a baffle. The baffle is arranged between the dehumidification chamber and the drying chamber. The filter is provided with an isolation plate. The isolation plate divides the filter into a first filter part and a second filter part. The first filter part is located in the dehumidification chamber, and the second filter part is located in the drying chamber.

[0022] The dehumidification chamber is connected to the gas pipeline, and uses a filter to dehumidify the gas medium in the gas pipeline;

[0023] An air inlet pipe is provided at one end of the drying chamber, and an air exhaust pipe is provided at the other end. The air inlet pipe is connected to the gas heating device, and the gas heating device is provided with an air inlet. External air enters the drying chamber through the air inlet, the gas heating device and the air inlet pipe in sequence, and is used to dry the filter.

[0024] The driver comprises a motor and a driving belt, one end of the driving belt is mounted on the motor, and the other end is mounted on the filter. The driver is used to drive the filter to rotate.

[0025] The control device causes the gas medium to be dehumidified through the dehumidification chamber based on the humidity information fed back by the detection device. The filter is driven by the driver to rotate 180° at set intervals, so that the first filter part and the second filter part are switched. The second air supply device pushes the outside air into the gas heating device. The outside air heated by the gas heating device enters the drying chamber to dry the filter. This arrangement can remove moisture in the battery box in a timely and efficient manner, avoid condensation, and facilitate the drying of the filter, so that the filter maintains good dehumidification capacity.

[0026] Furthermore, the gas pipeline includes a main pipeline, a dehumidification pipeline and a bypass pipeline, one end of the main pipeline forms a T-shaped connection with the dehumidification pipeline and one end of the bypass pipeline, and a first reversing valve is provided at the T-shaped intersection;

[0027] The other end of the main pipeline is connected to the dehumidification pipeline and the other end of the bypass pipeline in an inverted T-shape, and a second reversing valve is provided at the inverted T-shaped intersection;

[0028] The dehumidification chamber is arranged on the dehumidification pipeline.

[0029] When it is necessary to dehumidify the gas medium in the battery box, the control device connects the main line with the dehumidification line by adjusting the first reversing valve and the second reversing valve. When the humidity in the battery box meets the requirement, the main line is connected with the bypass line. This arrangement facilitates the dehumidification of the gas medium in the battery box. When the humidity of the gas medium in the battery box meets the requirement, the gas medium in the gas line can also maintain high-speed flow, thereby enhancing the temperature control effect of the gas temperature control device.

[0030] Furthermore, the battery module unit includes a shell, a heat exchange partition and a single battery;

[0031] A plurality of heat exchange baffles are evenly arranged in the shell, and a plurality of evenly arranged single cells are arranged between two adjacent heat exchange baffles;

[0032] Buckles are provided on the side surfaces of the heat exchange baffles, and the buckles are used to fix the single cells.

[0033] By providing clips on the heat exchange partition, it is not only convenient to install the single battery, but also can enhance the heat exchange effect between the single battery and the heat exchange partition.

[0034] Furthermore, the shell includes an enclosure, an upper cover plate and a lower cover plate, the upper cover plate is detachably connected to the upper end surface of the enclosure plate, the lower cover plate is detachably connected to the lower end surface of the enclosure plate, and ventilation holes are provided on both the upper cover plate and the lower cover plate for air circulation;

[0035] One end of the heat exchange partition plate is connected to the front end plate of the enclosure, and the other end is connected to the rear end plate of the enclosure. Both the enclosure and the heat exchange partition plate are hollow plates, and the liquid medium can flow inside the enclosure and the heat exchange partition plate.

[0036] This structure facilitates the assembly production of the battery module unit, enhances the ventilation and heat dissipation effect, enables the liquid medium to flow inside the enclosure and the heat exchange partition plate, and enhances the heat exchange effect among the heat exchange partition plate, the enclosure, and the single battery.

[0037] Furthermore, the enclosure includes an upper enclosure and a lower enclosure, and the cavities inside the upper enclosure and the lower enclosure are not connected;

[0038] The heat exchange partition plate includes an upper partition plate and a lower partition plate, and the cavities inside the upper partition plate and the lower partition plate are not connected;

[0039] The enclosure is provided with an inlet and an outlet for the liquid. The inlet for the liquid includes an upper inlet and a lower inlet, and the outlet for the liquid includes an upper outlet and a lower outlet. The upper inlet is arranged on the front end face of the upper enclosure, the upper outlet is arranged on the rear end face of the upper enclosure, the lower inlet is arranged on the rear end face of the lower enclosure, and the lower outlet is arranged on the front end face of the lower enclosure;

[0040] The upper inlet, the upper enclosure, the upper partition plate, and the upper outlet are connected in sequence, and the lower inlet, the lower enclosure, the lower partition plate, and the lower outlet are connected in sequence.

[0041] This structure divides the enclosure and the heat exchange partition plate into upper and lower parts, making the flow directions of the liquid medium in the upper and lower parts of the enclosure and the heat exchange partition plate opposite, which can enhance the temperature uniformity of the contact surface between the enclosure, the heat exchange partition plate, and the single battery, avoid the rapid decline of battery performance caused by local temperature imbalance, and reduce the cycle service life of the battery module unit.

[0042] The present invention also provides a control method for the temperature control device. When the control device receives the temperature information fed back by the detection device, the following steps are executed:

[0043] S1: Judge whether t1 < T < t2. If so, the detection device continues to detect; if not, enter S2;

[0044] S2: Judge whether T < t0. If so, the gas temperature control device heats the gas medium in the battery box, and the liquid temperature control device heats the battery module unit; if not, enter S3;

[0045] S3: Judge whether t0 < T < t1. If so, the gas temperature control device heats the gas medium in the battery box; if not, enter S4;

[0046] S4: Determine whether t2 < T < t3. If so, the gas temperature control device cools the gas medium in the battery box; if not, proceed to S5;

[0047] S5: Determine whether T < t3. If so, the gas temperature control device cools the gas medium in the battery box, and the liquid temperature control device cools the battery module unit; if not, proceed to S1;

[0048] Where, T is the temperature value detected by the detection device, and t0, t1, t2, t3 are set temperature thresholds, and t0 < t1 < t2 < t3.

[0049] This control method can adjust the working states of the gas temperature control device and the liquid temperature control device in real time according to the temperature information, which can not only keep the single battery always within the set temperature range, but also achieve the effect of energy saving.

[0050] Furthermore, when the control device receives the humidity information fed back by the detection device, the following steps are executed:

[0051] A1: Determine whether h0 < H < h1. If so, the detection device continues to detect; if not, proceed to A2;

[0052] A2: Determine whether H < h1. If so, the dehumidification device dehumidifies the gas medium in the battery box; if not, proceed to A1;

[0053] Where, H is the humidity value detected by the detection device, and h0, h1 are set humidity thresholds.

[0054] This control method can not only dehumidify the gas medium in the battery box efficiently to avoid condensation, but also dry the filter to keep it in good dehumidification effect all the time.

[0055] Compared with the prior art, the temperature control device of the energy storage battery module and its control method of the present invention have the following advantages:

[0056] 1) By setting up an independent gas temperature control device, it can not only enhance the gas temperature control effect, but also heat or cool the single battery;

[0057] 2) By dividing the enclosure panel and the heat exchange partition into upper and lower parts, and making the flow directions of the liquid media in the upper and lower parts of the enclosure panel and the heat exchange partition opposite, it can enhance the temperature uniformity of the contact surface between the enclosure panel, the heat exchange partition and the single battery, avoid the rapid decline of battery performance caused by local temperature imbalance, and reduce the cycle service life of the battery module unit;

[0058] 3) The dehumidification device can remove the moisture in the battery box in a timely and efficient manner to avoid condensation;

[0059] 4) The control device can adjust the temperature of the single battery in the battery module unit according to the real-time temperature information fed back by the detection device, so that the single battery is always maintained in the set temperature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a structural diagram of the temperature control device for the energy storage battery module according to an embodiment of the present invention;

[0061] Figure 2 for Figure 1 Schematic diagram of the structure of the battery box;

[0062] Figure 3 for Figure 1 Schematic diagram of the structure of the battery module unit;

[0063] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the battery module unit;

[0064] Figure 5 for Figure 3 Schematic diagram of the structure of the battery module unit after removing the upper cover;

[0065] Figure 6 for Figure 4 Schematic diagram of the structure of the middle heat exchange baffle;

[0066] Figure 7 for Figure 1 Schematic diagram of the structure of the gas temperature control device;

[0067] Figure 8 for Figure 1 Schematic diagram of the structure of the liquid temperature control device;

[0068] Figure 9 for Figure 1 Schematic diagram of the structure of the control device;

[0069] Figure 10 for Figure 1 Schematic diagram of the structure of the dehumidification device;

[0070] Figure 11 for Figure 10 Schematic diagram of the filter structure.

[0071] Description of reference numerals:

[0072] 1. Battery case; 11. Air inlet; 12. Exhaust port; 2. Battery module unit; 21. Shell; 211. Enclosure; 2111. Upper enclosure; 2112. Lower enclosure; 212. Upper cover; 213. Lower cover; 214. Ventilation hole; 22. Heat exchange baffle; 221. Upper baffle; 222. Lower baffle; 210. Liquid inlet; 2101. Upper liquid inlet; 2102. Lower liquid inlet; 220. Liquid drain; 2201. Upper liquid drain; 2202. Lower liquid drain; 3. Gas temperature control device; 31. First air supply device; 32. Gas heating device; 320. Air inlet; 33. Gas cooling device; 4. Liquid temperature control device; 41. Liquid supply device; 42. Liquid heating device; 43. Liquid cooling device; 5. Detection device; 6. Control device; 71. First Flow detector; 72. Second flow detector; 8. Alarm device; 81. Flashlight; 82. Speaker; 83. Signal transmitter; 9. Dehumidification device; 91. Reaction device; 910. Reaction chamber; 9101. Dehumidification chamber; 9102. Drying chamber; 9103. Baffle; 911. Filter; 9110. Isolation plate; 9111. First filter section; 9112. Second filter section; 912. Driver; 9121. Motor; 9122. Drive belt; 92. Second air supply device; 100. Single battery; 200. Buckle; 300. Gas pipeline; 301. Main pipeline; 302. Dehumidification pipeline; 303. Bypass pipeline; 410. Air inlet pipe; 420. Exhaust pipe; 510. First reversing valve; 520. Second reversing valve; 600. Flow direction of gas medium. DETAILED DESCRIPTION

[0073] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0074] Example 1

[0075] like Figures 1 to 11 As shown, a temperature control device for an energy storage battery module includes: a battery box 1, a battery module unit 2, a gas temperature control device 3, a liquid temperature control device 4, a dehumidification device 9, a detection device 5 and a control device 6;

[0076] The control device 6 is electrically connected to the gas temperature control device 3, the dehumidification device 9, the liquid temperature control device 4 and the detection device 5 respectively;

[0077] The battery box 1 is provided with a battery module unit 2, and the battery module unit 2 is provided with a single battery 100;

[0078] The gas supply end of the gas temperature regulating device 3 is connected to the gas inlet 11 of the battery box 1 through a pipeline, and the gas return end of the gas temperature regulating device 3 is connected to the exhaust port 12 of the battery box 1 through a pipeline;

[0079] The gas temperature control device 3 is used to adjust the ambient temperature inside the battery box 1, the liquid temperature control device 4 is used to adjust the temperature of the single battery 100, and the dehumidification device 9 is arranged on the gas temperature control pipeline to dehumidify the gas medium in the pipeline. The detection device 5 is used to detect the temperature of the single battery 100 and the humidity inside the battery box 1 in real time and transmit the information to the control device 6. The control device 6 adjusts the working status of the gas temperature control device 3, the dehumidification device 9 and the liquid temperature control device 4 in real time according to the temperature and humidity information.

[0080] The temperature control device of the energy storage battery module in the present application can not only heat or cool the single battery 100, but also enhance the gas temperature control effect by setting an independent gas temperature control device 3 and a liquid temperature control device 4. By setting a dehumidification device 9, the gas medium in the battery box 1 can be dehumidified. The control device 6 can adjust the working status of the gas temperature control device 3, the liquid temperature control device 4 and the dehumidification device 9 according to the real-time temperature and humidity information feedback from the detection device 5. This setting can not only enable the single battery 100 to always maintain the set temperature range, but also avoid condensation in the battery box 1.

[0081] As a preferred example of the present invention, the gas temperature control device 3 includes a first air supply device 31, a gas heating device 32 and a gas cooling device 33. The first air supply device 31 is used to promote the flow of the gas medium in the gas pipeline 300, the gas heating device 32 is used to heat the gas medium in the gas pipeline 300, and the gas cooling device 33 is used to cool the gas medium in the gas pipeline 300.

[0082] The first air supply device 31 , the gas heating device 32 and the gas cooling device 33 are sequentially arranged along the flow direction 600 of the gas medium.

[0083] Specifically, this arrangement can not only heat or cool the gas medium, accelerate the circulation of the gas medium, enhance the temperature regulation effect of the gas temperature regulating device 3, but also prevent the temperature of the gas medium in the device from being affected by the external environment.

[0084] As a preferred example of the present invention, the liquid temperature control device 4 includes a liquid feeding device 41, a liquid heating device 42 and a liquid cooling device 43. The liquid feeding device 41 is used to promote the flow of the liquid medium in the pipeline, the liquid heating device 42 is used to heat the liquid medium in the pipeline, and the liquid cooling device 43 is used to cool the liquid medium in the pipeline.

[0085] The liquid heating device 42, the liquid feeding device 41 and the liquid cooling device 43 are sequentially arranged along the flow direction of the liquid medium;

[0086] The liquid supply end of the liquid temperature regulating device 4 is communicated with the liquid inlet (210) of the battery module unit 2 through a pipeline, and the liquid return end of the liquid temperature regulating device 4 is communicated with the liquid discharge port 220 of the battery module unit 2 through a pipeline.

[0087] Specifically, this arrangement can not only heat or cool the battery module unit 2, but also enhance the temperature regulation effect by accelerating the flow rate of the liquid medium.

[0088] As a preferred example of the present invention, the dehumidification device 9 includes a reaction device 91 and a second air supply device 92. The reaction device 91 is arranged on the gas pipeline 300. The second air supply device 92 pushes the gas medium to enter the gas temperature control device 3 after being dehumidified by the reaction device 91.

[0089] The reaction device 91 includes a reaction chamber 910, a filter 911, and a driver 912. The reaction chamber 910 includes a dehumidification chamber 9101, a drying chamber 9102, and a baffle 9103. The baffle 9103 is disposed between the dehumidification chamber 9101 and the drying chamber 9102. The filter 911 is provided with an isolation plate 9110. The isolation plate 9110 divides the filter 9111 into a first filter portion 9111 and a second filter portion 9112. The first filter portion 9111 is located in the dehumidification chamber 9101, and the second filter portion 9112 is located in the drying chamber 9102.

[0090] The dehumidification chamber 9101 is in communication with the gas pipeline 300 and utilizes the filter 911 to dehumidify the gas medium in the gas pipeline 300;

[0091] An air inlet pipe 410 is provided at one end of the drying chamber 9102, and an air exhaust pipe 420 is provided at the other end. The air inlet pipe 410 is connected to the gas heating device 32, and the gas heating device 32 is provided with an air inlet 320. External air enters the drying chamber 9102 through the air inlet 320, the gas heating device 32, and the air inlet pipe 410 in sequence, and is used to dry the filter 913.

[0092] The driver 912 includes a motor 9121 and a driving belt 9122 . One end of the driving belt 9122 is mounted on the motor 9121 , and the other end is mounted on the filter 911 . The driver 912 is used to drive the filter 911 to rotate.

[0093] Specifically, the control device 6 dehumidifies the gas medium through the dehumidification chamber 9101 according to the humidity information fed back by the detection device 5. The filter 911 rotates 180° at a set time interval under the drive of the driver 912, so that the first filter part 9111 and the second filter part 9112 are switched. The second air supply device 92 pushes the outside air into the gas heating device 32. The outside air heated by the gas heating device 32 enters the drying chamber 9102 to dry the filter 911. This arrangement can remove moisture in the battery box 1 in a timely and efficient manner to avoid condensation, and is also convenient for drying the filter 911, so that the filter 911 maintains a good dehumidification capacity.

[0094] As a preferred example of the present invention, the gas pipeline 300 includes a main pipeline 301, a dehumidification pipeline 302, and a bypass pipeline 303. One end of the main pipeline 301 is connected to one end of the dehumidification pipeline 302 and the bypass pipeline 303 in a T-shape. A first reversing valve 510 is provided at the T-shaped intersection.

[0095] The other end of the main line 301 is connected to the dehumidification line 302 and the other end of the bypass line 303 in an inverted T-shape, and a second reversing valve 520 is provided at the inverted T-shaped intersection;

[0096] The dehumidification chamber 9101 is arranged on the dehumidification pipeline 302.

[0097] Specifically, when it is necessary to dehumidify the gas medium in the battery box 1, the control device 6 adjusts the first reversing valve 510 and the second reversing valve 520 to connect the main line 301 with the dehumidification line 302. When the humidity in the battery box 1 meets the requirements, the main line 301 is connected with the bypass line 303. This arrangement facilitates the dehumidification of the gas medium in the battery box 1. When the humidity of the gas medium in the battery box 1 meets the requirements, the gas medium in the gas line 300 can also maintain high-speed flow, thereby enhancing the temperature control effect of the gas temperature control device 3.

[0098] As a preferred example of the present invention, the battery module unit 2 includes a housing 21, a heat exchange baffle 22 and a single battery 100;

[0099] A plurality of heat exchange baffles 22 are evenly arranged in the housing 21, and a plurality of evenly arranged single cells 100 are arranged between two adjacent heat exchange baffles 22;

[0100] A buckle 200 is provided on the side surface of the heat exchange baffle 22 , and the buckle 200 is used to fix the single battery 100 .

[0101] Specifically, by providing the buckle 200 on the heat exchange baffle 22 , it is convenient to install the single battery 100 and the heat exchange effect between the single battery 100 and the heat exchange baffle 22 can be enhanced.

[0102] As a preferred example of the present invention, the housing 21 includes a surrounding plate 211, an upper cover plate 212, and a lower cover plate 213. The upper cover plate 212 is detachably connected to the upper end surface of the surrounding plate 211, and the lower cover plate 213 is detachably connected to the lower end surface of the surrounding plate 211. Ventilation holes 214 are provided on both the upper cover plate 212 and the lower cover plate 213 for air circulation.

[0103] One end of the heat exchange baffle 22 is connected to the front end plate of the enclosure 211, and the other end is connected to the rear end plate of the enclosure 211. The enclosure 211 and the heat exchange baffle 22 are both hollow plates, and the liquid medium can flow inside the enclosure 211 and the heat exchange baffle 22.

[0104] Specifically, this structure facilitates the assembly and production of the battery module unit 2, enhances the ventilation and heat dissipation effect, enables the liquid medium to flow inside the enclosure 211 and the heat exchange partition 22, and enhances the heat exchange effect between the heat exchange partition 22, the enclosure 211 and the single battery 100.

[0105] As a preferred example of the present invention, the enclosure 211 includes an upper enclosure 2111 and a lower enclosure 2112, and the cavities in the upper enclosure 2111 and the lower enclosure 2112 are not connected;

[0106] The heat exchange baffle 22 includes an upper baffle 221 and a lower baffle 222, and the cavities in the upper baffle 221 and the lower baffle 222 are not connected;

[0107] The enclosure 211 is provided with a liquid inlet 210 and a liquid discharge port 220. The liquid inlet 210 includes an upper liquid inlet 2101 and a lower liquid inlet 2102. The liquid discharge port 220 includes an upper liquid discharge port 2201 and a lower liquid discharge port 2202. The upper liquid inlet 2101 is provided on the front end surface of the upper enclosure 2111, and the upper liquid discharge port 2201 is provided on the rear end surface of the upper enclosure 2111. The lower liquid inlet 2102 is provided on the rear end surface of the lower enclosure 2112, and the lower liquid discharge port 2202 is provided on the front end surface of the lower enclosure 2112.

[0108] The upper liquid inlet 2101, the upper enclosure 2111, the upper partition 221 and the upper liquid discharge port 2201 are connected in sequence, and the lower liquid inlet 2102, the lower enclosure 2112, the lower partition 222 and the lower liquid discharge port 2202 are connected in sequence.

[0109] Specifically, this structure divides the enclosure 211 and the heat exchange baffle 22 into two parts, the upper and lower parts, so that the flow directions of the liquid medium in the upper and lower parts of the enclosure 211 and the heat exchange baffle 22 are opposite, which can enhance the temperature uniformity of the contact surface between the enclosure 211, the heat exchange baffle 22 and the single battery 100, avoid local temperature imbalance causing rapid degradation of battery performance, and reduce the cycle service life of the battery module unit 2.

[0110] Preferably, the enclosure 211 and the heat exchange baffle 22 are divided into multiple parts, and the liquid medium in adjacent parts flows in opposite directions. This structure can further enhance the temperature uniformity of the contact surface between the enclosure 211, the heat exchange baffle 22 and the single battery 100, thereby improving the heat exchange effect.

[0111] As a preferred example of the present invention, a first flow detector 71 is provided in the battery box 1 for detecting the flow velocity of the gas medium in real time, and a second flow detector 72 is provided in the liquid temperature regulating device 4 for detecting the flow velocity of the liquid medium in real time;

[0112] The control device 6 can adjust the flow speed of the gas medium and / or the flow speed of the liquid medium in real time according to the temperature information.

[0113] Specifically, this arrangement can further enhance the temperature regulation effects of the gas temperature regulation device 3 and the liquid temperature regulation device 4 .

[0114] As a preferred example of the present invention, the air inlet 11 is arranged on the upper left side of the rear end surface of the battery box 1 , and the air outlet 12 is arranged on the lower right side of the front end surface of the battery box 1 .

[0115] Specifically, this structure enables the gas medium to flow fully in the battery box 1 , thereby enhancing the heat exchange effect between the gas medium and the battery module unit 2 .

[0116] As a preferred example of the present invention, the control device 6 is provided with an alarm device 8, which includes a flash light 81, a speaker 82 and a signal transmitter 83. The flash light 81 uses light to send alarm information to the outside world, the speaker 82 uses sound to send alarm information to the outside world, and the signal transmitter 83 can send alarm information to the terminal device or the external mobile terminal.

[0117] Specifically, this setting can send alarm information to the outside world in a timely manner, improve the operating stability of the energy storage battery module temperature control device, and avoid safety accidents.

[0118] Example 2

[0119] like Figures 1 to 11As shown, a control method for a temperature regulating device. When the control device 6 receives the temperature information fed back by the detection device 5, the following steps are executed:

[0120] S1: Judge whether t1 < T < t2. If so, the detection device 5 continues to detect; if not, enter S2;

[0121] S2: Judge whether T < t0. If so, the gas temperature regulating device 3 heats the gas medium in the battery box 1, and the liquid temperature regulating device 4 heats the battery module unit 2; if not, enter S3;

[0122] S3: Judge whether t0 < T < t1. If so, the gas temperature regulating device 3 heats the gas medium in the battery box 1; if not, enter S4;

[0123] S4: Judge whether t2 < T < t3. If so, the gas temperature regulating device 3 cools the gas medium in the battery box 1; if not, enter S5;

[0124] S5: Judge whether t3 < T. If so, the gas temperature regulating device 3 cools the gas medium in the battery box 1, and the liquid temperature regulating device 4 cools the battery module unit 2; if not, enter S1;

[0125] Wherein, T is the temperature value detected by the detection device 5, and t0, t1, t2, t3 are set temperature thresholds, and t0 < t1 < t2 < t3.

[0126] Specifically, this control method can adjust the working states of the gas temperature regulating device 3 and the liquid temperature regulating device 4 in real time according to the temperature information, which can not only keep the single battery 100 always within the set temperature range, but also achieve the effect of energy saving.

[0127] Further, when the control device 6 receives the humidity information fed back by the detection device 5, the following steps are executed:

[0128] A1: Judge whether h0 < H < h1. If so, the detection device 5 continues to detect; if not, enter A2;

[0129] A2: Judge whether h1 < H. If so, the dehumidifying device 9 dehumidifies the gas medium in the battery box 1; if not, enter A1;

[0130] Wherein, H is the humidity value detected by the detection device 5, and h0, h1 are set humidity thresholds.

[0131] Specifically, in step A2, after the filter 911 has been running for a set period of time, the driver 912 will drive the filter 911 to rotate 180°, so that the first filter part 9111 and the second filter part 9112 are swapped, ensuring the dehumidification effect of the filter 911, and at the same time starting the second air supply device 92 and the gas heating device 32 to dry the filter 911. This control method can not only efficiently dehumidify the gas medium in the battery box 1 to avoid condensation, but also dry the filter 911 to always maintain a good dehumidification effect.

[0132] In summary, the temperature control device of the energy storage battery module and the control method thereof in the present application have the following advantages: First, by setting up an independent gas temperature control device 3, it is possible to enhance the gas temperature control effect and heat or cool the single cell 100; second, by dividing the enclosure 211 and the heat exchange baffle 22 into two upper and lower parts, the liquid medium in the upper and lower parts of the enclosure 211 and the heat exchange baffle 22 flow in opposite directions, which can enhance the temperature uniformity of the contact surface between the enclosure 211, the heat exchange baffle 22 and the single cell 100, thereby avoiding local temperature imbalance leading to rapid degradation of battery performance and reducing the cycle life of the battery module unit 2; third, the dehumidification device 9 can timely and efficiently remove moisture in the battery box 1 to avoid condensation; fourth, the control device 6 can adjust the temperature of the single cell 100 in the battery module unit 2 according to the real-time temperature information fed back by the detection device 5, so that the single cell 100 is always maintained in the set temperature range.

[0133] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A temperature control device for an energy storage battery module, characterized in that: include: Battery box (1), battery module unit (2), gas temperature control device (3), liquid temperature control device (4), dehumidification device (9), detection device (5) and control device (6); The control device (6) is electrically connected to the gas temperature control device (3), the dehumidification device (9), the liquid temperature control device (4) and the detection device (5) respectively; A battery module unit (2) is provided in the battery box (1), and a single battery (100) is provided in the battery module unit (2); The gas supply end of the gas temperature regulating device (3) is in communication with the gas inlet (11) of the battery box (1) through a pipeline, and the gas return end of the gas temperature regulating device (3) is in communication with the gas outlet (12) of the battery box (1) through a pipeline; the liquid supply end of the liquid temperature regulating device (4) is in communication with the liquid inlet (210) of the battery module unit (2) through a pipeline, and the liquid return end of the liquid temperature regulating device (4) is in communication with the liquid outlet (220) of the battery module unit (2) through a pipeline; the gas temperature regulating device (3) includes a gas heating device (32), and the gas heating device (32) is used to heat the gas medium in the gas pipeline (300); The dehumidification device (9) comprises a reaction device (91) and a second air supply device (92), wherein the reaction device (91) is arranged on a gas pipeline (300), and the second air supply device (92) pushes the gas medium to enter the gas temperature control device (3) after being dehumidified by the reaction device (91); The reaction device (91) comprises a reaction chamber (910) and a filter (911); the reaction chamber (910) comprises a dehumidification chamber (9101), a drying chamber (9102) and a baffle (9103); the baffle (9103) is arranged between the dehumidification chamber (9101) and the drying chamber (9102); an isolation plate (9110) is arranged on the filter (911); the isolation plate (9110) divides the filter (9111) into a first filter portion (9111) and a second filter portion (9112); the first filter portion (9111) is located in the dehumidification chamber (9101), and the second filter portion (9112) is located in the drying chamber (9102); The dehumidification chamber (9101) is in communication with the gas pipeline (300), and utilizes the filter (911) to dehumidify the gas medium in the gas pipeline (300); An air inlet pipe (410) is provided at one end of the drying chamber (9102), and an air exhaust pipe (420) is provided at the other end. The air inlet pipe (410) is in communication with the gas heating device (32). The gas heating device (32) is provided with an air inlet (320). External air enters the drying chamber (9102) through the air inlet (320), the gas heating device (32) and the air inlet pipe (410) in sequence, and is used to dry the filter (911). The gas temperature regulating device (3) is used to regulate the ambient temperature in the battery box (1); the liquid temperature regulating device (4) is used to regulate the temperature of the single battery (100); the dehumidifying device (9) is provided on the gas temperature regulating pipeline and is used to dehumidify the gas medium in the pipeline; the detecting device (5) is used to detect the temperature of the single battery (100) and the humidity in the battery box (1) in real time and transmit the information to the control device (6); the control device (6) adjusts the working states of the gas temperature regulating device (3), the dehumidifying device (9) and the liquid temperature regulating device (4) in real time according to the temperature and humidity information.

2. The temperature control device according to claim 1, characterized in that The gas temperature control device (3) further comprises a first air supply device (31) and a gas refrigeration device (33), wherein the first air supply device (31) is used to promote the flow of the gas medium in the gas pipeline (300), and the gas refrigeration device (33) is used to cool the gas medium in the gas pipeline (300); The first air supply device (31), the gas heating device (32), and the gas refrigeration device (33) are arranged in sequence along the flow direction (600) of the gas medium.

3. The temperature control device according to claim 1, characterized in that The liquid temperature regulating device (4) comprises a liquid feeding device (41), a liquid heating device (42) and a liquid cooling device (43), wherein the liquid feeding device (41) is used to promote the flow of the liquid medium in the pipeline, the liquid heating device (42) is used to heat the liquid medium in the pipeline, and the liquid cooling device (43) is used to cool the liquid medium in the pipeline; The liquid heating device (42), the liquid feeding device (41) and the liquid cooling device (43) are arranged in sequence along the flow direction of the liquid medium.

4. The temperature control device according to claim 1, characterized in that The reaction device (91) further comprises a driver (912), wherein the driver (912) comprises a motor (9121) and a drive belt (9122), wherein one end of the drive belt (9122) is mounted on the motor (9121) and the other end is mounted on the filter (911), and the driver (912) is used to drive the filter (911) to rotate.

5. The temperature control device according to claim 1, characterized in that The gas pipeline (300) comprises a main pipeline (301), a dehumidification pipeline (302) and a bypass pipeline (303); one end of the main pipeline (301) forms a T-shaped connection with one end of the dehumidification pipeline (302) and one end of the bypass pipeline (303); a first reversing valve (510) is provided at the T-shaped intersection; The other end of the main pipeline (301) is connected to the dehumidification pipeline (302) and the other end of the bypass pipeline (303) in an inverted T-shape, and a second reversing valve (520) is provided at the inverted T-shaped intersection; The dehumidification chamber (9101) is arranged on the dehumidification pipeline (302).

6. The temperature control device according to claim 1, characterized in that The battery module unit (2) comprises a housing (21), a heat exchange baffle (22) and a single battery (100); A plurality of heat exchange baffles (22) are evenly arranged in the housing (21), and a plurality of evenly arranged single cells (100) are arranged between two adjacent heat exchange baffles (22); A buckle (200) is provided on the side of the heat exchange baffle (22), and the buckle (200) is used to fix the single battery (100).

7. The temperature control device according to claim 6, characterized in that The housing (21) includes a surrounding plate (211), an upper cover plate (212) and a lower cover plate (213). The upper cover plate (212) is detachably connected to the upper end face of the surrounding plate (211), and the lower cover plate (213) is detachably connected to the lower end face of the surrounding plate (211). Ventilation holes (214) are provided on both the upper cover plate (212) and the lower cover plate (213), and the ventilation holes (214) are used for air circulation. One end of the heat exchange partition plate (22) is connected to the front end plate of the surrounding plate (211), and the other end is connected to the rear end plate of the surrounding plate (211). Both the surrounding plate (211) and the heat exchange partition plate (22) are hollow plates, and a liquid medium can flow inside the surrounding plate (211) and the heat exchange partition plate (22).

8. The temperature control device according to claim 7, characterized in that The surrounding plate (211) includes an upper surrounding plate (2111) and a lower surrounding plate (2112), and the cavities inside the upper surrounding plate (2111) and the lower surrounding plate (2112) are not connected. The heat exchange partition plate (22) includes an upper partition plate (221) and a lower partition plate (222), and the cavities inside the upper partition plate (221) and the lower partition plate (222) are not connected. An inlet port (210) and a drain port (220) are provided on the surrounding plate (211). The inlet port (210) includes an upper inlet port (2101) and a lower inlet port (2102), and the drain port (220) includes an upper drain port (2201) and a lower drain port (2202). The upper inlet port (2101) is provided on the front end face of the upper surrounding plate (2111), the upper drain port (2201) is provided on the rear end face of the upper surrounding plate (2111), the lower inlet port (2102) is provided on the rear end face of the lower surrounding plate (2112), and the lower drain port (2202) is provided on the front end face of the lower surrounding plate (2112). The upper inlet port (2101), the upper surrounding plate (2111), the upper partition plate (221) and the upper drain port (2201) are connected in sequence, and the lower inlet port (2102), the lower surrounding plate (2112), the lower partition plate (222) and the lower drain port (2202) are connected in sequence.

9. A control method based on the temperature control device according to claim 1, characterized in that: When the control device (6) receives the temperature information fed back by the detection device (5), the following steps are executed: S1: Judge whether t1 < T < t2. If so, the detection device (5) continues to detect; if not, enter S2. S2: Judge whether T < t0. If so, the gas temperature control device (3) heats the gas medium in the battery box body (1), and the liquid temperature control device (4) heats the battery module unit (2); if not, enter S3. S3: Judge whether t0 < T < t1. If so, the gas temperature control device (3) heats the gas medium in the battery box body (1); if not, enter S4. S4: Judge whether t2 < T < t3. If so, the gas temperature control device (3) cools the gas medium in the battery box body (1); if not, enter S5. S5: Determine whether t3 < T. If so, the gas temperature control device (3) cools the gas medium inside the battery box (1), and the liquid temperature control device (4) cools the battery module unit (2); if not, proceed to S1; When the control device (6) receives the humidity information fed back by the detection device (5), perform the following steps: A1: Determine whether h0 < H < h1. If so, the detection device (5) continues the detection; if not, proceed to A2; A2: Determine whether h1 < H. If so, the dehumidification device (9) dehumidifies the gas medium inside the battery box (1); if not, proceed to A1; Where, H is the humidity value detected by the detection device (5), h0 and h1 are the set humidity thresholds, T is the temperature value detected by the detection device (5), t0, t1, t2, and t3 are the set temperature thresholds, and t0 < t1 < t2 < t3.

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