Outdoor low-temperature-resistant lithium battery module

Abstract

The present application relates to the technical field of low-temperature-resistant lithium battery, in particular to an outdoor low-temperature-resistant lithium battery module, which comprises a plurality of lithium batteries arranged in groups and uniformly distributed, a cold-resistant protection mechanism arranged outside the plurality of lithium batteries arranged in groups, a drainage mechanism arranged on the cold-resistant protection mechanism, a constant-temperature chamber mechanism arranged in the cold-resistant protection mechanism, and a combined stability enhancement mechanism arranged on the cold-resistant protection mechanism. According to the existing group arrangement of lithium batteries, a plurality of pressure relief components, side pressure relief components, and four groups of corner pressure relief components are arranged in a uniform distribution. When the lithium batteries arranged in groups are assembled, the plurality of pressure relief components can cooperate with the heating plate to improve the resistance of the batteries arranged in groups to low temperature and the self-adaptability to high temperature, thereby effectively ensuring the real-time use performance of the lithium batteries arranged in groups in a closed environment, and further improving the service life of the batteries arranged in groups.

Description

Technical Field

[0001] This invention relates to the field of low-temperature resistant lithium battery technology, specifically to an outdoor low-temperature resistant lithium battery module. Background Technology

[0002] In addition to preheating the battery during charging and discharging, the low-temperature resistance of outdoor lithium batteries can also be improved by optimizing the electrolyte and improving the positive and negative electrode profiles, thereby effectively improving the performance of lithium batteries in low-temperature environments.

[0003] As the low-temperature resistance of lithium batteries has become increasingly sophisticated, when these lithium batteries are used in a sealed environment, the assembled lithium batteries will generate instantaneous heat. While individual lithium batteries can control their own temperature, the instantaneous high temperature of the assembled lithium batteries will affect the lifespan of other batteries. This not only reduces their resistance to high temperatures but also affects the charging and discharging performance of the assembled batteries at low temperatures, which can lead to failure in severe cases.

[0004] In view of this, an outdoor low-temperature resistant lithium battery module was designed to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows:

[0007] An outdoor low-temperature resistant lithium battery module includes multiple lithium batteries arranged in a group and evenly distributed, a cold-resistant protective mechanism disposed outside the group of lithium batteries, a drainage mechanism disposed on the cold-resistant protective mechanism, a constant-temperature chamber-building mechanism disposed inside the cold-resistant protective mechanism, and a combined stabilization mechanism disposed on the cold-resistant protective mechanism; the cold-resistant protective mechanism is used to provide a grouped assembly and storage chamber for the multiple lithium batteries; the drainage mechanism is used to circulate air within the grouped assembly and storage chamber; the constant-temperature chamber-building mechanism includes multiple sets of pressure-bearing ventilation components disposed within the group of lithium batteries, multiple sets of side-pressure ventilation components disposed outside the group of lithium batteries, and four sets of corner-pressure ventilation components disposed on the four lithium batteries at the four corners of the group; the pressure-bearing ventilation components, side-pressure ventilation components, and corner-pressure ventilation components are used to provide a wide-area constant-temperature carrier for the group of batteries; the combined stabilization mechanism is used to limit the evenly distributed multiple sets of pressure-bearing ventilation components, side-pressure ventilation components, and corner-pressure ventilation components.

[0008] In a preferred embodiment, the present invention may be further configured such that the cold-resistant protection mechanism includes a first cover and a second cover disposed on both sides of a group of multiple lithium batteries;

[0009] A first baffle is provided at one end of the first cover and the second cover, and a second baffle is provided at the other end of the first cover and the second cover;

[0010] The inner sides of both the first baffle and the second baffle are provided with two symmetrically distributed internal exhaust slots.

[0011] Both ends of the first baffle and the second baffle are provided with two symmetrically distributed external exhaust slots;

[0012] An adapter sleeve is provided inside the external exhaust port;

[0013] The first baffle and the second baffle are provided with evenly distributed threaded holes at their top and bottom, and rectangular slots are provided in the middle of the inner side of the first baffle and the second baffle, and pressure plates are provided in the rectangular slots.

[0014] In a preferred embodiment, the present invention may be further configured such that the cold-resistant protection mechanism also includes two sets of temperature control components;

[0015] One set of temperature control components is located inside the first cover, and the other set of temperature control components is located inside the second cover.

[0016] The temperature control component includes multiple main pads and two auxiliary pads evenly distributed, and heating plates are provided on the multiple main pads and the two auxiliary pads.

[0017] An input terminal is provided at one end of the outer side of the heating plate, and an output terminal is provided at the other end of the outer side of the heating plate;

[0018] The main pad and the auxiliary pad are provided with heat exchange slots inside.

[0019] In a preferred embodiment, the present invention can be further configured such that the combined stabilization mechanism comprises two crossbeams;

[0020] The crossbeam is provided with evenly distributed circular shims, and the circular shims are provided with bolts that fit into the threaded holes.

[0021] Multiple evenly distributed reinforcing ribs are movably installed between the two crossbeams;

[0022] The reinforcing rib is provided with a plurality of evenly distributed limiting pads.

[0023] In a preferred embodiment, the present invention can be further configured such that: the diversion mechanism includes a duct disposed in a transverse groove outside the first baffle, an exhaust fan box is mounted on the duct, and a power supply component is mounted at the bottom of the exhaust fan box;

[0024] The duct has a U-shaped structure and multiple equally spaced inlets are provided at the top of the duct.

[0025] A drainage tube is provided inside the insertion port;

[0026] The drainage tube has an overall L-shaped structure, and the drainage tube is provided with evenly distributed end tubes.

[0027] In a preferred embodiment, the present invention can be further configured as follows: the pressure-bearing and ventilation assembly includes four first pressure blocks, four main heat-insulating layers disposed within the four first pressure blocks, and a top seat and a bottom seat disposed on the inner side of the four main heat-insulating layers;

[0028] The first base has a first air pipe fixedly installed inside, and the top end of the first air pipe is adapted to penetrate into the first top base;

[0029] The bottom of the first base and the top of the first top seat are provided with two symmetrically distributed first pads.

[0030] In a preferred embodiment, the present invention can be further configured as follows: the side-pressure ventilation assembly includes two second pressure blocks, and a second side heat-insulating layer is provided on the inner side of the two second pressure blocks, and two first side heat-insulating layers are provided inside the two second pressure blocks;

[0031] The second side heat insulation layer and the inner sides of the two first side heat insulation layers are provided with a top seat and a bottom seat;

[0032] The second base has a second air pipe fixedly installed inside, and the top end of the second air pipe is adapted to penetrate into the second top base;

[0033] The bottom of the second base and the top of the second top seat are provided with two symmetrically distributed second pads.

[0034] In a preferred embodiment, the present invention may be further configured such that the angle pressure venting assembly includes a third pressure block;

[0035] The inner side of the third pressure block is provided with two symmetrically distributed corner heat-insulating layers, and the inner side of the two corner heat-insulating layers is provided with a top third top seat and a bottom third base.

[0036] The third base has a third air pipe fixedly installed inside it, and the top end of the third air pipe is adapted to penetrate into the third top base.

[0037] The bottom of the third base and the top of the third top seat are provided with two symmetrically distributed third pads.

[0038] In a preferred embodiment, the present invention may be further configured such that uniformly distributed heat exchange windows are provided on the walls of the first, second, and third air pipes.

[0039] In a preferred embodiment, the present invention may be further configured such that the main heat-insulating layer, the first side heat-insulating layer, the second side heat-insulating layer and the corner heat-insulating layer are all made of polyurethane acrylate, and the interior of the main heat-insulating layer, the first side heat-insulating layer, the second side heat-insulating layer and the corner heat-insulating layer are all provided with honeycomb pores.

[0040] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0041] 1. This invention sets up multiple sets of pressure-bearing ventilation components, side-pressure ventilation components, and four sets of corner-pressure ventilation components evenly distributed according to the existing lithium battery pack layout. After the assembled lithium batteries are assembled, the multiple ventilation components can work with the heating plate to provide the assembled batteries with high resistance to low temperatures and high temperature adaptability, thereby effectively ensuring the real-time performance of the assembled lithium batteries in a closed environment, and thus improving the service life of the assembled batteries.

[0042] 2. This invention uses evenly distributed pressure blocks inside multiple sets of ventilation components and a flow diversion mechanism to circulate and exhaust air from the battery pack in a sealed environment. At this time, any aqueous solution that accidentally seeps into the sealed environment can be drawn into the evenly distributed pressure blocks by the air pressure. The aqueous solution can then be effectively absorbed by the pressure blocks. Finally, with the continuous drying operation of the hot airflow, the cleanliness and dryness of the battery pack in the sealed environment are ensured.

[0043] 3. This invention provides an internal exhaust port and an external exhaust port that are vertically distributed on two baffles. Depending on the actual number of battery modules in the group, each battery module can be connected using an adapter sleeve. At this time, the evenly distributed battery modules can form an effective ventilation path. Finally, ventilation can be carried out through a drainage mechanism, thereby ensuring that the evenly distributed battery modules can obtain constant temperature and low temperature protection. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the front of the invention;

[0045] Figure 2 This is a three-dimensional bottom view diagram of the present invention;

[0046] Figure 3 For the present invention Figure 2 An explosion diagram;

[0047] Figure 4 This is a schematic diagram of the drainage mechanism of the present invention;

[0048] Figure 5 This is a schematic diagram of the cold-resistant protection mechanism of the present invention;

[0049] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0050] Figure 7 This is a schematic diagram of the first and second baffles of the present invention;

[0051] Figure 8 This is a schematic diagram of the constant temperature chamber-making mechanism of the present invention;

[0052] Figure 9 This is an exploded view of the temperature control component of the present invention;

[0053] Figure 10 This is an exploded view of the angle pressure venting assembly of the present invention;

[0054] Figure 11 This is an exploded view of the side-pressure ventilation assembly of the present invention;

[0055] Figure 12 This is an exploded schematic diagram of the pressure-bearing ventilation assembly of the present invention.

[0056] Figure label:

[0057] 100. Cold-resistant protective mechanism; 110. First protective cover; 120. Second protective cover; 130. First baffle; 140. Second baffle; 150. Adapter sleeve; 160. Internal exhaust port; 170. External exhaust port; 180. Temperature control component; 181. Main pad; 182. Secondary pad; 183. Heating plate; 184. Input terminal; 185. Output terminal; 190. Pressure booster plate;

[0058] 200. Airflow mechanism; 210. Air duct; 220. Inlet; 230. Airflow pipe; 240. Exhaust fan housing; 250. Power supply components;

[0059] 300. Constant temperature chamber construction mechanism; 310. Pressure-bearing ventilation assembly; 311. First foot; 312. First base; 313. First top seat; 314. First air pipe; 315. Main insulation layer; 316. First pressure block; 320. Side pressure ventilation assembly; 321. Second foot; 322. Second base; 323. Second top seat; 324. Second air pipe; 325. Second pressure block; 326. First side insulation layer; 327. Second side insulation layer; 330. Corner pressure ventilation assembly; 331. Third foot; 332. Third base; 333. Third top seat; 334. Third air pipe; 335. Third pressure block; 336. Corner insulation layer;

[0060] 400. Joint stabilization mechanism; 410. Crossbeam; 420. Bolt; 430. Reinforcing rib;

[0061] 500, lithium battery. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0063] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0064] The following describes, with reference to the accompanying drawings, some embodiments of an outdoor low-temperature resistant lithium battery module provided by the present invention. Example

[0065] Combination Figures 1-12 As shown, the present invention provides an outdoor low-temperature resistant lithium battery module, including a group of lithium batteries 500 evenly distributed, a cold-resistant protection mechanism 100 disposed outside the group of lithium batteries 500, a flow-draining mechanism 200 disposed on the cold-resistant protection mechanism 100, a constant temperature chamber-building mechanism 300 disposed inside the cold-resistant protection mechanism 100, and a combined stabilization mechanism 400 disposed on the cold-resistant protection mechanism 100. The cold-resistant protection mechanism 100 is used to provide a group of assembly and storage chambers for the group of lithium batteries 500, and the flow-draining mechanism 200 is used to circulate air in the group of assembly and storage chambers.

[0066] The air diversion mechanism 200 includes an air duct 210, an exhaust fan box 240 is installed on the air duct 210, and a power supply component 250 is installed at the bottom of the exhaust fan box 240.

[0067] The duct 210 has a U-shaped structure, and the top of the duct 210 has multiple equally spaced inlets 220.

[0068] A drainage tube 230 is provided inside the inlet 220;

[0069] The drainage tube 230 has an overall L-shaped structure, and the drainage tube 230 is provided with evenly distributed end tubes;

[0070] The constant temperature chamber making mechanism 300 includes multiple sets of pressure-bearing ventilation components 310 disposed within a group of multiple lithium batteries 500, multiple sets of side-pressure ventilation components 320 disposed outside the group of multiple lithium batteries 500, and four sets of corner-pressure ventilation components 330 disposed on the four lithium batteries 500 within the four corners of the group.

[0071] The pressure-bearing venting assembly 310, the side-pressure venting assembly 320, and the angle-pressure venting assembly 330 are used to provide a wide range of constant temperature carriers for the battery packs.

[0072] The combined stabilization mechanism 400 is used to limit the evenly distributed multiple sets of pressure-bearing venting components 310, side-pressure venting components 320, and angle-pressure venting components 330.

[0073] The pressure-bearing ventilation assembly 310 includes four first pressure blocks 316, four main heat-insulating layers 315 disposed within the four first pressure blocks 316, and a first top seat 313 and a first base 312 disposed on the inner side of the four main heat-insulating layers 315.

[0074] The first air pipe 314 is fixedly installed inside the first base 312, and the top end of the first air pipe 314 is adapted to penetrate into the first top seat 313.

[0075] Two first pads 311 are symmetrically distributed at the bottom of the first base 312 and the top of the first top seat 313;

[0076] The side-pressure ventilation assembly 320 includes two second pressure blocks 325, and a second side heat insulation layer 327 is provided on the inner side of the two second pressure blocks 325, and two first side heat insulation layers 326 are provided inside the two second pressure blocks 325.

[0077] The inner sides of the second heat-insulating layer 327 and the two first heat-insulating layers 326 are provided with a top second top seat 323 and a bottom second base 322.

[0078] The second base 322 has a second air pipe 324 fixedly installed inside, and the top end of the second air pipe 324 is adapted to penetrate into the second top seat 323.

[0079] Two second pads 321 are symmetrically distributed at the bottom of the second base 322 and the top of the second top seat 323;

[0080] Angle pressure venting assembly 330 includes a third pressure block 335;

[0081] The inner side of the third pressure block 335 is provided with two symmetrically distributed corner heat-insulating layers 336, and the inner side of the two corner heat-insulating layers 336 is provided with a top third top seat 333 and a bottom third base 332.

[0082] The third base 332 has a third air pipe 334 fixedly installed inside, and the top end of the third air pipe 334 is adapted to penetrate into the third top base 333.

[0083] Two symmetrically distributed third feet 331 are provided at the bottom of the third base 332 and the top of the third top seat 333;

[0084] The first air pipe 314, the second air pipe 324 and the third air pipe 334 have uniformly distributed heat exchange windows on their pipe walls.

[0085] The main heat-insulating layer 315, the first side heat-insulating layer 326, the second side heat-insulating layer 327, and the corner heat-insulating layer 336 are all made of polyurethane acrylate, and the interior of the main heat-insulating layer 315, the first side heat-insulating layer 326, the second side heat-insulating layer 327, and the corner heat-insulating layer 336 are all provided with honeycomb pores.

[0086] In use, when multiple sets of pressure-bearing and ventilation components 310 are assembled with multiple lithium batteries 500, the adjacent lithium batteries 500 can be effectively supported by multiple sets of pressure-bearing and ventilation components 310. Furthermore, four sets of corner pressure ventilation components 330 are set on the four lithium batteries 500 at the corners. At this time, the four sets of corner pressure ventilation components 330 can provide impact-resistant and pressure-bearing protection for the assembled lithium batteries 500.

[0087] The multiple sets of side pressure venting components 320 arranged on both sides of the multiple lithium batteries 500 can work with the multiple sets of pressure venting components 310 to provide an effective heat exchange channel for thermal energy.

[0088] When the first cover 110, the second cover 120, the first baffle 130 and the second baffle 140 are installed on the four sides of the group of multiple lithium batteries 500, they are supported and fixed, and the group of multiple lithium batteries 500 can be kept at a constant temperature during charging and discharging. When the external temperature increases or drops suddenly, the multiple lithium batteries 500 under effective group protection can operate safely.

[0089] Once liquid accumulates inside the battery pack, the hot airflow, driven by the air exhaust mechanism 200, draws the liquid into the evenly distributed main heat-insulating layer 315, the first side heat-insulating layer 326, the second side heat-insulating layer 327, and the corner heat-insulating layer 336. Finally, the liquid is evaporated under the continuous hot airflow, and the assembled batteries can be charged and discharged in a dry environment at all times. Example

[0090] Combination Figures 5-7 As shown, based on Embodiment 1, the cold-resistant protection mechanism 100 includes a first cover 110 and a second cover 120 disposed on both sides of a group of multiple lithium batteries 500.

[0091] Preferably, both ends of the first cover 110 and the second cover 120 are provided with two symmetrically distributed insertion holes, and the inner sides of the first cover 110 and the second cover 120 are provided with inwardly recessed grooves.

[0092] A first baffle 130 is provided at one end of the first cover 110 and the second cover 120, and a second baffle 140 is provided at the other end of the first cover 110 and the second cover 120.

[0093] The inner sides of the first baffle 130 and the second baffle 140 are each provided with two symmetrically distributed internal exhaust slots 160.

[0094] Both ends of the first baffle 130 and the second baffle 140 are provided with two symmetrically distributed external exhaust slots 170.

[0095] Preferably, the surfaces of the first cover 110, the second cover 120, the first baffle 130, and the second baffle 140 are all coated with a flame-retardant coating, wherein the through holes inside the first baffle 130 and the second baffle 140 are connected to the grooves inside the first cover 110 and the second cover 120 through the internal exhaust slots 160.

[0096] An adapter sleeve 150 is installed inside the external exhaust port 170;

[0097] The top and bottom of the first baffle 130 and the second baffle 140 are provided with evenly distributed threaded holes, and the middle of the inner side of the first baffle 130 and the second baffle 140 are provided with rectangular slots, and a pressure plate 190 is provided in the rectangular slots.

[0098] Preferably, there are four adapter sleeves 150, two of which are installed on the first baffle 130 and the other two are installed on the second baffle 140. When there are many battery packs, the ventilation channels of multiple battery packs can be connected through the adapter sleeves 150. Example

[0099] Combination Figure 8 and Figure 9 As shown, based on Embodiment 1, the cold-resistant protection mechanism 100 also includes two sets of temperature control components 180;

[0100] One set of temperature control components 180 is located inside the first cover 110, and the other set of temperature control components 180 is located inside the second cover 120.

[0101] The temperature control assembly 180 includes a plurality of main pads 181 and two auxiliary pads 182 evenly distributed, and heating plates 183 are provided on the plurality of main pads 181 and the two auxiliary pads 182.

[0102] An input terminal 184 is provided at one end of the outer side of the heating plate 183, and an output terminal 185 is provided at the other end of the outer side of the heating plate 183.

[0103] The main pad 181 and the auxiliary pad 182 have heat exchange slots inside.

[0104] Preferably, multiple main pads 181 are disposed on multiple sets of side-pressure venting components 320, and two auxiliary pads 182 are disposed on two sets of angle-pressure venting components 330. The heat exchange slots inside the main pads 181 and auxiliary pads 182 are connected to the inner cavities of the side-pressure venting components 320 and the angle-pressure venting components 330. When the heating plate 183 releases heat, the heat energy is directly transferred through the main pads 181 and auxiliary pads 182. At this time, the multiple lithium batteries 500 in the group can be fully covered under the guidance of the circulating airflow, thereby ensuring that the group of batteries is kept at a constant temperature in a low-temperature environment and avoiding damage caused by the instantaneous overheating of the group of batteries. Example

[0105] Combination Figures 6-12 As shown, based on Embodiment 1, the combined stabilization mechanism 400 includes two crossbeams 410;

[0106] The crossbeam 410 is provided with evenly distributed circular washers, and the circular washers are provided with bolts 420 that are adapted to the threaded holes.

[0107] Multiple reinforcing ribs 430 are movably installed between the two crossbeams 410;

[0108] Multiple evenly distributed limiting rings are provided on the reinforcing rib 430.

[0109] Preferably, one of the crossbeams 410 is mounted on the first baffle 130 by multiple bolts 420, and the other crossbeam 410 is mounted on the second baffle 140 by multiple bolts 420. At this time, the two crossbeams 410 are connected and the multiple reinforcing ribs 430 are evenly distributed, which can fix the assembled first air pipe 314, second air pipe 324 and third air pipe 334. At the same time, the first pad 311, second pad 321 and third pad 331 can also be fixed, thereby ensuring that the multiple sets of pressure-bearing ventilation components 310, side pressure ventilation components 320 and angle pressure ventilation components 330 provide stable protection for the multiple lithium batteries 500 after assembly.

[0110] The working principle and usage process of this invention: The low-temperature resistance of lithium batteries is divided into: charging preheating, optimizing electrolyte, improving positive and negative electrode profiles, and external heating, etc.

[0111] Unlike improvements to the lithium battery itself, when lithium batteries are assembled into a group, the densely distributed lithium batteries, in addition to the external heating methods mentioned above, will cause excessive internal temperature rise in the assembled lithium battery module, which will easily reduce the lifespan of the lithium batteries. At the same time, once the lithium battery pack is concentrated and the temperature rises, it will cause a sudden increase in temperature in the closed environment, which may cause certain safety hazards in severe cases.

[0112] This device innovates upon existing lithium battery packing methods by uniformly distributing multiple sets of pressure-bearing and ventilation components 310 within the gaps of stacked and grouped lithium batteries. In this case, the four curved surfaces of a single set of pressure-bearing and ventilation components 310 can provide effective protection and support for four adjacent lithium batteries. Furthermore, the four adjacent improved or ordinary lithium batteries can prevent excessive temperature concentration, thus preventing a sudden increase in temperature within the sealed environment.

[0113] When multiple lithium batteries 500 are evenly distributed and generate heat during charging and discharging, the heat released instantaneously by four adjacent lithium batteries 500 will be input into the four first pressure blocks 316 with a cross-shaped structure. At the same time, the exhaust box 240 in operation can exhaust air to the outside through multiple drain pipes 230. At this time, the end pipes evenly distributed on the drain pipes 230 can be inserted into the ports at the top of multiple first air pipes 314, second air pipes 324 and third air pipes 334. Therefore, multiple first air pipes 314, second air pipes 324 and third air pipes 334 can cyclically release the heat in the sealed space after assembly. At this time, the multiple lithium batteries 500 after assembly can be kept at a constant temperature when the external temperature rises and instantaneous high temperature is generated, so as to improve the efficient protection of the assembled lithium batteries.

[0114] When the ambient temperature is extremely low, by connecting the input terminal 184 and the output terminal 185 to the battery pack circuit, the multiple lithium batteries 500 in the pack are charging and discharging at the moment, and the two heating plates 183 can quickly heat up. When the heat released by the input terminal 184 and the output terminal 185 rises to the rated value, the input terminal 184 and the output terminal 185 are de-energized through a separate detection and protection mechanism. At this time, the two heating plates 183, which are releasing heat, can direct the heat to the first cover 110, the second cover 120, and the first baffle 130. The hot air is released into the annular cavity formed by the second baffle 140 and, in conjunction with the air exhaust mechanism 200, the hot air can finally enter through the interior of the multiple first air pipes 314, second air pipes 324 and third air pipes 334. The hot air can then diffuse within the multiple lithium batteries 500 after assembly. At this time, the multiple lithium batteries 500 after assembly can be kept at a constant temperature during use. This not only prevents temperature imbalance during the use of the assembled batteries, but also provides preheating protection for the batteries, thereby improving the resistance of the multiple lithium batteries 500 to low external temperatures.

[0115] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An outdoor low-temperature resistant lithium battery module, comprising a group of lithium batteries (500) evenly distributed, characterized in that, It also includes a cold-resistant protection mechanism (100) disposed outside the group of multiple lithium batteries (500), a flow-draining mechanism (200) disposed on the cold-resistant protection mechanism (100), a constant temperature chamber-making mechanism (300) disposed inside the cold-resistant protection mechanism (100), and a combined stabilization mechanism (400) disposed on the cold-resistant protection mechanism (100). The cold-resistant protective mechanism (100) is used to provide a grouped assembly and storage chamber for multiple lithium batteries (500) in a group; The cold-resistant protection mechanism (100) includes a first cover (110) and a second cover (120) disposed on both sides of a group of multiple lithium batteries (500). A first baffle (130) is provided at one end of the first cover (110) and the second cover (120), and a second baffle (140) is provided at the other end of the first cover (110) and the second cover (120). The drainage mechanism (200) is used to circulate air in the grouped assembly storage chambers; The diversion mechanism (200) includes a duct (210) disposed in a transverse groove outside the first baffle (130), an exhaust fan box (240) is installed on the duct (210), and a power supply component (250) is installed at the bottom of the exhaust fan box (240). The duct (210) has a U-shaped structure, and the top of the duct (210) is provided with multiple equally spaced inlets (220). A drainage tube (230) is provided inside the inlet (220); The drainage tube (230) has an overall L-shaped structure, and the drainage tube (230) is provided with evenly distributed end tubes; The constant temperature chamber making mechanism (300) includes multiple sets of pressure-bearing ventilation components (310) disposed within a group of multiple lithium batteries (500), multiple sets of side-pressure ventilation components (320) disposed outside the group of multiple lithium batteries (500), and four sets of corner-pressure ventilation components (330) disposed on the four lithium batteries (500) at the four corners of the group. The pressure-bearing venting assembly (310), the side-pressure venting assembly (320), and the angle-pressure venting assembly (330) are used to provide a wide range of constant temperature carriers for the battery packs; The pressure-bearing ventilation assembly (310) includes four first pressure blocks (316), four main heat-insulating layers (315) disposed within the four first pressure blocks (316), and a first top seat (313) and a first base (312) disposed on the inner side of the four main heat-insulating layers (315). The first base (312) has a first air pipe (314) fixedly installed inside, and the top end of the first air pipe (314) is adapted to penetrate into the first top seat (313); The bottom of the first base (312) and the top of the first top seat (313) are provided with two symmetrically distributed first pads (311). The combined stabilization mechanism (400) is used to limit the evenly distributed multiple sets of pressure-bearing venting components (310), side-pressure venting components (320), and angle-pressure venting components (330).

2. The outdoor low-temperature resistant lithium battery module according to claim 1, characterized in that, The inner sides of the first baffle (130) and the second baffle (140) are provided with two symmetrically distributed internal exhaust slots (160). Both ends of the first baffle (130) and the second baffle (140) are provided with two symmetrically distributed external exhaust slots (170). An adapter sleeve (150) is provided inside the external exhaust port (170); The top and bottom of the first baffle (130) and the second baffle (140) are provided with evenly distributed threaded holes, and the middle of the inner side of the first baffle (130) and the second baffle (140) are provided with rectangular slots, and a pressure plate (190) is provided in the rectangular slots.

3. The outdoor low-temperature resistant lithium battery module according to claim 1, characterized in that, The cold-resistant protection mechanism (100) also includes two sets of temperature control components (180); One set of temperature control components (180) is located inside the first cover (110), and the other set of temperature control components (180) is located inside the second cover (120); The temperature control component (180) includes a plurality of evenly distributed main pads (181) and two auxiliary pads (182), and heating plates (183) are provided on the plurality of main pads (181) and the two auxiliary pads (182). An input terminal (184) is provided at one end of the outer side of the heating plate (183), and an output terminal (185) is provided at the other end of the outer side of the heating plate (183). The main pad (181) and the secondary pad (182) are provided with heat exchange slots inside.

4. An outdoor low-temperature resistant lithium battery module according to claim 1, characterized in that, The combined stabilization mechanism (400) includes two crossbeams (410). The crossbeam (410) is provided with evenly distributed circular shims, and the circular shims are provided with bolts (420) adapted to the threaded holes. A plurality of evenly distributed reinforcing ribs (430) are movably installed between the two beams (410). The reinforcing rib (430) is provided with a plurality of evenly distributed limiting pads.

5. An outdoor low-temperature resistant lithium battery module according to claim 1, characterized in that, The side pressure ventilation assembly (320) includes two second pressure blocks (325), and a second side heat insulation layer (327) is provided on the inner side of the two second pressure blocks (325), and two first side heat insulation layers (326) are provided inside the two second pressure blocks (325). The inner sides of the second side heat insulation layer (327) and the two first side heat insulation layers (326) are provided with a top second top seat (323) and a bottom second base (322). The second base (322) has a second air pipe (324) fixedly installed inside, and the top end of the second air pipe (324) is adapted to penetrate into the second top seat (323); The bottom of the second base (322) and the top of the second top seat (323) are provided with two symmetrically distributed second pads (321).

6. An outdoor low-temperature resistant lithium battery module according to claim 1, characterized in that, The angle pressure venting assembly (330) includes a third pressure block (335); The inner side of the third pressure block (335) is provided with two symmetrically distributed corner heat-insulating layers (336), and the inner side of the two corner heat-insulating layers (336) is provided with a top third top seat (333) and a bottom third base (332). The third base (332) is fixedly installed with a third air pipe (334), and the top end of the third air pipe (334) is adapted to penetrate into the third top base (333); The bottom of the third base (332) and the top of the third top seat (333) are provided with two symmetrically distributed third pads (331).

7. An outdoor low-temperature resistant lithium battery module according to claim 1, characterized in that, The first air pipe (314), the second air pipe (324) and the third air pipe (334) have uniformly distributed heat exchange windows on their pipe walls.

8. An outdoor low-temperature resistant lithium battery module according to claim 1, characterized in that, The main heat-insulating layer (315), the first side heat-insulating layer (326), the second side heat-insulating layer (327) and the corner heat-insulating layer (336) are all made of polyurethane acrylate, and the interior of the main heat-insulating layer (315), the first side heat-insulating layer (326), the second side heat-insulating layer (327) and the corner heat-insulating layer (336) are all provided with honeycomb pores.

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