A new energy battery module high-efficiency heat dissipation device

Abstract

The present invention relates to the field of battery module technology, and specifically to an efficient heat dissipation device for a new energy battery module. An efficient heat dissipation device for a new energy battery module comprises a battery frame, a plurality of batteries and a plurality of heat dissipation mechanisms, each heat dissipation mechanism comprises a liquid cooling plate and a plurality of slide plates, and a first channel and a plurality of arc-shaped flow channels are provided in the liquid cooling plate. The slide plate is in a first state, and the inner wall of the slide plate and the first channel are against each other. When the slide plate is in a second state, the slide plate and the first channel are out of contact, part of the liquid flows in the arc-shaped flow channel, and the liquid flowing out of the arc-shaped flow channel enters the space between the slide plate and the inner wall of the first channel, the flow rate of the liquid will increase, and then suction will be generated on the liquid outlet, thereby improving the flow capacity of the liquid in the arc-shaped flow channel. The present invention provides an efficient heat dissipation device for a new energy battery module to solve the problem that the existence of an S-shaped flow channel in an existing battery module heat dissipation device will increase the flow resistance of the liquid, making it difficult for the liquid to flow, and requiring an increase in the power of the pump.

Description

Technical Field

[0001] The present invention relates to the technical field of battery modules, and in particular to a high-efficiency heat dissipation device for a new energy battery module. Background Art

[0002] A battery module is a unit assembled from multiple cells to provide higher voltage and capacity. A battery module is composed of several cells, connectors, and a battery management system. A battery module can be understood as an intermediate product between a cell and a battery pack formed by combining lithium-ion cells in series and parallel and adding a single-cell battery monitoring and management device. Its structure must support, fix, and protect the cells, which can be summarized into three major items: mechanical strength, electrical properties, thermal properties, and fault handling capabilities. Whether the cell position can be fixed intact and protected from deformation that damages performance, whether the spread of thermal runaway can be avoided, etc., will be the criteria for judging the quality of a battery module.

[0003] Liquid cooling technology uses liquid convection heat transfer to remove the heat generated by the battery cell and reduce the battery cell temperature. Liquid media have a high heat transfer coefficient, large heat capacity, and fast cooling speed. They are effective in reducing the maximum temperature and improving the temperature consistency of the battery pack. At the same time, the volume of the thermal management system is relatively small. The liquid cooling system is relatively flexible. The battery cell or module can be immersed in liquid, cooling channels can be set between the battery cells, or a cooling plate can be used at the bottom of the battery.

[0004] For example, the Chinese invention patent with authorization announcement number CN110890494B provides a battery module and battery box with a liquid cooling device, which opens a main liquid inlet channel, a main liquid return channel and multiple cooling channels in the liquid cooling plate, wherein the cooling channel is S-shaped, thereby increasing the heat dissipation area and thus better cooling the battery. However, the existence of the S-shaped channel increases the flow resistance of the liquid, making the liquid difficult to flow and requiring an increase in the power of the pump. In addition, the prior art cannot perform multi-stage adjustment according to the temperature of the battery and has poor adaptability. Summary of the invention

[0005] The present invention provides a new energy battery module high-efficiency heat dissipation device to solve the problem that the existence of an S-shaped flow channel in an existing battery module heat dissipation device increases the flow resistance of the liquid, making the liquid difficult to flow and requiring an increase in the power of the pump.

[0006] The invention discloses a new energy battery module high-efficiency heat dissipation device that adopts the following technical solution: a new energy battery module high-efficiency heat dissipation device includes a battery frame, multiple batteries and multiple heat dissipation mechanisms. The battery is vertically arranged, and the multiple batteries are sequentially arranged in the battery frame along the horizontal direction, and the direction in which the multiple batteries are sequentially arranged is the first direction.

[0007] Each heat dissipation mechanism is arranged in two adjacent batteries, and each heat dissipation mechanism includes a liquid cooling plate and a plurality of slide plates. Each liquid cooling plate is vertically arranged between two adjacent batteries, and the liquid cooling plate is arranged along a second direction, the second direction is a horizontal direction, and the second direction is perpendicular to the first direction. A first channel and a plurality of arc-shaped flow channels are provided in the liquid cooling plate, and the first channel is arranged along the second direction. A plurality of arc-shaped flow channels are arranged on the upper and lower sides of the first channel, and a plurality of arc-shaped flow channels are distributed in sequence along the second direction. The arc-shaped flow channel is arc-shaped, and both ends of the arc-shaped flow channel are connected to the first channel.

[0008] The slide plate is arranged along the second direction, and the slide plate can be slid up and down in the first channel, and each slide plate is arranged at one end of an arc-shaped flow channel, and the slide plate has a first state and a second state. The first state of the slide plate is that the slide plate and the inner wall of the first channel are against each other, and the slide plate blocks one end of the arc-shaped flow channel, preventing the liquid from flowing in the arc-shaped flow channel. The second state of the slide plate is that the slide plate is out of contact with the first channel, allowing the liquid to flow in the arc-shaped flow channel.

[0009] Further, the two ends of the liquid cooling plate along the second direction are respectively a first end and a second end. The two ends of the arc-shaped flow channel are a liquid inlet and a liquid outlet. The liquid inlet is close to the first end of the liquid cooling plate, and the liquid outlet is close to the second end of the liquid cooling plate.

[0010] The slide plate is arranged at the liquid outlet, and includes a first transverse plate and an inclined plate, the first transverse plate and the inclined plate are fixedly connected, and the inclined plate and the first transverse plate are sequentially distributed along the direction from the first end to the second end of the liquid cooling plate. The inclined plate gradually moves away from the inner wall of the first channel along the direction from the second end to the first end of the liquid cooling plate.

[0011] Furthermore, each heat dissipation mechanism further includes a plurality of first guide assemblies, and the plurality of first guide assemblies are sequentially distributed along the second direction. Each first guide assembly includes a first curved plate and a second curved plate. The first curved plate and the second curved plate are both slidably arranged in the first channel. The first curved plate and the second curved plate are sequentially distributed along the direction from the first end to the second end of the liquid cooling plate, and the first curved plate and the second curved plate are both curved, with the convex surface facing upward, and the first curved plate and the second curved plate are inclined.

[0012] One end of the first curved plate near the first end of the liquid cooling plate is lower than one end of the first curved plate near the second end of the liquid cooling plate. One end of the second curved plate near the first end of the liquid cooling plate is higher than one end of the first curved plate near the second end of the liquid cooling plate.

[0013] Furthermore, each heat dissipation mechanism also includes a plurality of second guide assemblies, which are arranged on the peripheral walls on both sides of the first channel, and each second guide assembly is arranged between two adjacent arc-shaped flow channels. Each second guide assembly includes a rotating plate, which is arranged obliquely, and one end of the rotating plate is rotatably arranged on the peripheral wall of the first channel, and a first angle and a second angle are formed between the rotating plate and the upper and lower side walls of the first channel. The first angle is the angle between the first channel and the side of the first end of the rotating plate close to the liquid cooling plate, and the second angle is the angle between the first channel and the side of the second end of the rotating plate close to the liquid cooling plate. The rotating plate has a third state and a fourth state, and the third state of the rotating plate is that the first angle is an acute angle and the second angle is an obtuse angle. The fourth state of the rotating plate is that the first angle is an obtuse angle and the second angle is an acute angle.

[0014] Furthermore, a plurality of first chute groups, a plurality of second chute groups and a plurality of third chute groups are provided in the first channel. The plurality of first chute groups are sequentially distributed along the second direction, and each first chute group is arranged at a liquid outlet of an arc-shaped flow channel. Each first chute group includes at least one first chute, the first chute is arranged vertically, and at least one first slider is fixedly arranged on the first transverse plate, and the first slider is arranged in the first chute to slide up and down.

[0015] A plurality of second chute groups and a plurality of third chute groups are alternately distributed in sequence along the second direction, each second chute group includes a second chute and a third chute, the second chute and the third chute are vertically arranged, and the second chute and the third chute are sequentially distributed along the direction from the first end of the liquid cooling plate to the second end of the liquid cooling plate, and the third chute is above the second chute. A second slider and a third slider are fixedly arranged at both ends of the first arc plate, respectively, the second slider is slidably arranged in the second chute, and the third chute is slidably arranged in the third chute.

[0016] Each third chute group includes a fourth chute and a fifth chute, the fourth chute and the fifth chute are vertically arranged, and the fourth chute and the fifth chute are sequentially distributed along the second direction, the fourth chute and the fifth chute are sequentially distributed along the direction from the first end of the liquid cooling plate to the second end of the liquid cooling plate, the fourth chute is above the fifth chute, and the third chute and the fourth chute are at the same height. The second curved plate is fixedly provided with a fourth slider and a fifth slider at both ends, the fourth slider is slidably arranged in the fourth chute, and the fifth slider is slidably arranged in the fifth chute.

[0017] Furthermore, a plurality of first through grooves are formed on the first arc-shaped plate, the first through grooves penetrate the first arc-shaped plate, the first through grooves are arranged along the second direction, and the plurality of first through grooves are sequentially distributed along the first direction.

[0018] The second arc plate is provided with a plurality of second through slots, the second through slots penetrate the second arc plate, the second through slots are arranged along the second direction, and the plurality of second through slots are sequentially distributed along the first direction. In the first direction, the plurality of first through slots and the plurality of second through slots are staggered.

[0019] The rotating plate is provided with a plurality of third through slots, the third through slots penetrate the rotating plate, the third through slots are arranged along the second direction, and the plurality of third through slots are sequentially distributed along the first direction. In the first direction, the plurality of second through slots and the plurality of third through slots are staggered.

[0020] Furthermore, a plurality of rotating shafts are fixedly arranged in the first channel, the plurality of rotating shafts are sequentially distributed along the second direction, each rotating shaft is arranged along the first direction, and each rotating shaft is arranged between two arc-shaped flow channels. One end of the rotating plate is rotatably arranged on the rotating shaft.

[0021] Furthermore, each heat dissipation mechanism also includes a plurality of torsion springs, each torsion spring is arranged on a rotating plate, and the torsion spring connects the rotating plate and the rotating shaft.

[0022] Furthermore, a first liquid opening is provided at one end of the first channel close to the first end of the liquid cooling plate, and a second liquid opening is provided at one end of the first channel close to the second end of the liquid cooling plate.

[0023] The new energy battery module high-efficiency heat dissipation device also includes a first liquid pipeline and a second liquid pipeline, the first liquid pipeline and the second liquid pipeline are respectively arranged along the first direction, the first liquid pipeline is arranged above the battery frame, and the first liquid pipeline is connected to a plurality of first liquid openings. The second liquid pipeline is arranged below the battery frame, and the second liquid pipeline is connected to a plurality of second liquid openings.

[0024] Furthermore, the new energy battery module efficient heat dissipation device also includes a sensing mechanism, the sensing mechanism includes a temperature sensor, the temperature sensor is arranged on the battery frame, and the temperature sensor is used to sense the battery temperature.

[0025] The beneficial effects of the present invention are as follows: a new energy battery module high-efficiency heat dissipation device of the present invention, through the heat dissipation mechanism set up, when the temperature of the battery is low, the slide plate is in the first state, the slide plate and the inner wall of the first channel are against each other, and the slide plate blocks one end of the arc flow channel, the liquid does not flow in the arc flow channel, the liquid basically flows in the first channel, and the smooth flow can be ensured. At this time, the liquid flow rate in the first channel is faster, thereby improving the heat dissipation efficiency.

[0026] When the temperature of the battery is high, the slide is in the second state, the slide is out of contact with the first channel, and part of the liquid flows in the arc flow channel, thereby increasing the heat dissipation area and better cooling the battery. At the same time, the liquid flowing out of the arc flow channel enters the space between the slide and the inner wall of the first channel. When the liquid passes through the reduced flow cross-section, the flow rate of the liquid will increase, and the pressure here will decrease, thereby generating suction on the liquid outlet, thereby improving the flow capacity of the liquid in the arc flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram of the structure of a new energy battery module high-efficiency heat dissipation device provided by an embodiment of the present invention;

[0029] Figure 2 A cross-sectional view of a new energy battery module high-efficiency heat dissipation device provided by an embodiment of the present invention;

[0030] Figure 3 A schematic diagram of the structure of a heat dissipation mechanism of a new energy battery module high-efficiency heat dissipation device provided by an embodiment of the present invention;

[0031] Figure 4 for Figure 3 The enlarged view of point A in the middle;

[0032] Figure 5 A cross-sectional view of a liquid cooling plate of a new energy battery module high-efficiency heat dissipation device provided by an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of a slide plate of a new energy battery module high-efficiency heat dissipation device provided by an embodiment of the present invention in a first state;

[0034] Figure 7 A schematic diagram of a slide plate of a new energy battery module high-efficiency heat dissipation device provided by an embodiment of the present invention in a second state.

[0035] In the figure: 100, battery frame; 200, first liquid pipeline; 300, second liquid pipeline; 400, battery; 500, liquid cooling plate; 501, arc-shaped flow channel; 5011, liquid inlet; 5012, liquid outlet; 505, rotating shaft; 506, first liquid outlet; 507, second liquid outlet; 510, first slide groove; 520, second slide groove; 530, third slide groove; 540, fourth slide groove; 550, fifth slide groove; 560, first channel; 600, slide plate; 700, first arc-shaped plate; 710, first through groove; 800, second arc-shaped plate; 810, second through groove; 900, rotating plate; 910, third through groove. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Reference Figures 1 to 7 As shown, an embodiment of the present invention provides a new energy battery module high-efficiency heat dissipation device, including a battery frame 100, a plurality of batteries 400 and a plurality of heat dissipation mechanisms. The battery 400 is arranged vertically, and the plurality of batteries 400 are arranged in sequence in the battery frame 100 along the horizontal direction, and the direction in which the plurality of batteries 400 are arranged in sequence is the first direction.

[0038] Each heat dissipation mechanism is arranged in two adjacent batteries 400, and each heat dissipation mechanism includes a liquid cooling plate 500 and a plurality of slide plates 600. Each liquid cooling plate 500 is vertically arranged between two adjacent batteries 400, and the liquid cooling plate 500 is arranged along the second direction, the second direction is a horizontal direction, and the second direction is perpendicular to the first direction. A first channel 560 and a plurality of arc-shaped flow channels 501 are provided in the liquid cooling plate 500, and the first channel 560 is arranged along the second direction. A plurality of arc-shaped flow channels 501 are arranged on the upper and lower sides of the first channel 560, and a plurality of arc-shaped flow channels 501 are distributed in sequence along the second direction. The arc-shaped flow channel 501 is arc-shaped, and both ends of the arc-shaped flow channel 501 are connected to the first channel 560.

[0039] The slide plate 600 is arranged along the second direction, and the slide plate 600 can be slid up and down in the first channel 560, and each slide plate 600 is arranged at one end of an arc-shaped flow channel 501. The slide plate 600 has a first state and a second state. The first state of the slide plate 600 is that the slide plate 600 and the inner wall of the first channel 560 are against each other, and the slide plate 600 blocks one end of the arc-shaped flow channel 501, thereby preventing the liquid from flowing in the arc-shaped flow channel 501. At this time, the temperature of the battery 400 is low, and the liquid basically flows in the first channel 560, which can ensure smooth flow. At this time, the liquid flow rate in the first channel 560 is fast, thereby improving the heat dissipation efficiency.

[0040] The second state of the slide plate 600 is that the slide plate 600 and the first channel 560 are out of contact, the slide plate 600 no longer blocks the arc-shaped flow channel 501, and the liquid can flow in the arc-shaped flow channel 501 to accelerate the flow of the liquid in the arc-shaped flow channel 501. At this time, the temperature of the battery 400 is relatively high, and part of the liquid flows in the arc-shaped flow channel 501, thereby increasing the heat dissipation area, thereby better cooling the battery 400. At the same time, the liquid flowing out of the arc-shaped flow channel 501 enters the space between the slide plate 600 and the inner wall of the first channel 560. When the liquid passes through the reduced flow cross-section, the flow rate of the liquid increases, and the pressure here becomes smaller, thereby generating suction on the liquid outlet 5012, thereby improving the flow capacity of the liquid in the arc-shaped flow channel 501.

[0041] In this embodiment, the two ends of the liquid cooling plate 500 along the second direction are respectively the first end and the second end. The two ends of the arc flow channel 501 are the liquid inlet 5011 and the liquid outlet 5012. The liquid inlet 5011 is close to the first end of the liquid cooling plate 500, and the liquid outlet 5012 is close to the second end of the liquid cooling plate 500.

[0042] The slide plate 600 is disposed at the liquid outlet 5012, and includes a first transverse plate and an inclined plate, the first transverse plate and the inclined plate are fixedly connected, and the inclined plate and the first transverse plate are sequentially distributed along the direction from the first end to the second end of the liquid cooling plate 500. The inclined plate gradually moves away from the inner wall of the first channel 560 along the direction from the second end to the first end of the liquid cooling plate 500.

[0043] When the liquid in the first channel 560 flows from the second end to the first end of the liquid cooling plate 500, under the driving force generated by the liquid flow, the slide plate 600 is in the first state, the slide plate 600 and the inner wall of the first channel 560 are against each other, and the slide plate 600 blocks the liquid outlet 5012.

[0044] When the liquid in the first channel 560 flows from the first end to the second end of the liquid cooling plate 500, under the driving force generated by the liquid flow and under the action of the inclined plate, the slide plate 600 is in the second state, and the liquid outlet 5012 is opened. At this time, part of the liquid will enter the arc flow channel 501 from the liquid inlet 5011 and flow out from the liquid outlet 5012 to improve the efficiency of heat dissipation for the battery 400.

[0045] In this embodiment, each heat dissipation mechanism further includes a plurality of first guide assemblies, and the plurality of first guide assemblies are sequentially distributed along the second direction. Each first guide assembly includes a first curved plate 700 and a second curved plate 800. The first curved plate 700 and the second curved plate 800 are both slidably disposed in the first channel 560. The first curved plate 700 and the second curved plate 800 are sequentially distributed along the direction from the first end to the second end of the liquid cooling plate 500, and the first curved plate 700 and the second curved plate 800 are both curved, with the convex surface facing upward, and the first curved plate 700 and the second curved plate 800 are inclined.

[0046] One end of the first curved plate 700 near the first end of the liquid cooling plate 500 is lower than one end of the first curved plate 700 near the second end of the liquid cooling plate 500. One end of the second curved plate 800 near the first end of the liquid cooling plate 500 is higher than one end of the first curved plate 700 near the second end of the liquid cooling plate 500.

[0047] When the liquid in the first channel 560 flows from the second end to the first end of the liquid cooling plate 500, under the driving force generated by the liquid flow, the first curved plate 700 and the second curved plate 800 move away from each other in the vertical direction, and the first curved plate 700 is located above the second curved plate 800. Most of the liquid in the first channel 560 flows in a wave-like manner under the guidance of the first curved plate 700 and the second curved plate 800, thereby improving the mixing degree of the liquid in the first channel 560.

[0048] When the liquid in the first channel 560 flows from the first end to the second end of the liquid cooling plate 500, the driving force generated by the liquid flow makes the highest end of the first curved plate 700 and the highest end of the second curved plate 800 at the same height, and makes the first curved plate 700 and the second curved plate 800 form a wave shape, and the first curved plate 700 and the second curved plate 800 divide the first channel 560 into two layers, upper and lower. Most of the liquid in the first channel 560 flows in a wave shape under the guidance of the first curved plate 700 and the second curved plate 800.

[0049] In this embodiment, each heat dissipation mechanism further includes a plurality of second guide assemblies, which are disposed on the peripheral walls on both sides of the first channel 560, and each second guide assembly is disposed between two adjacent arc-shaped flow channels 501. Each second guide assembly includes a rotating plate 900, which is disposed obliquely, and one end of the rotating plate 900 is rotatably disposed on the peripheral wall of the first channel 560, and a first angle and a second angle are formed between the rotating plate 900 and the upper and lower side walls of the first channel 560.

[0050] The first angle is the angle between the first channel 560 and the first end side of the rotating plate 900 close to the liquid cooling plate 500, and the second angle is the angle between the first channel 560 and the second end side of the rotating plate 900 close to the liquid cooling plate 500. The rotating plate 900 has a third state and a fourth state. The third state of the rotating plate 900 is that the first angle is an acute angle and the second angle is an obtuse angle. The fourth state of the rotating plate 900 is that the first angle is an obtuse angle and the second angle is an acute angle.

[0051] When the liquid in the first channel 560 flows from the second end to the first end of the liquid cooling plate 500, the rotating plate 900 is in the third state, the rotating plate 900 and the first curved plate 700 are inclined in the same direction, and the rotating plate 900 and the first curved plate 700 work together to guide the water flow. Most of the liquid in the first channel 560 flows in a wave-like manner under the guidance of the first curved plate 700, the second curved plate 800 and the rotating plate 900.

[0052] When the liquid in the first channel 560 flows from the first end to the second end of the liquid cooling plate 500, the rotating plate 900 is in the fourth state, the rotating plate 900 and the second curved plate 800 are inclined in the same direction, and the liquid flowing out of the slide plate 600 is guided by the rotating plate 900, and is mixed with the liquid in the first channel 560 under the action of the first curved plate 700 and the second curved plate 800 and flows in a wave-like manner.

[0053] In this embodiment, a plurality of first chute groups, a plurality of second chute groups, and a plurality of third chute groups are provided in the first channel 560. The plurality of first chute groups are sequentially distributed along the second direction, and each first chute group is disposed at a liquid outlet 5012 of an arc-shaped flow channel 501. Each first chute group includes at least one first chute 510, which is vertically disposed, and at least one first slider is fixedly disposed on the first transverse plate, and the first slider is slidably disposed in the first chute 510 up and down.

[0054] A plurality of second chute groups and a plurality of third chute groups are alternately distributed in sequence along the second direction, and each second chute group includes a second chute 520 and a third chute 530, which are vertically arranged, and the second chute 520 and the third chute 530 are sequentially distributed along the direction from the first end of the liquid cooling plate 500 to the second end of the liquid cooling plate 500, and the third chute 530 is located above the second chute 520. A second slider and a third slider are fixedly disposed at both ends of the first curved plate 700, respectively, and the second slider is slidably disposed in the second chute 520, and the third chute 530 is slidably disposed in the third chute 530.

[0055] Each third chute group includes a fourth chute 540 and a fifth chute 550, which are vertically arranged and sequentially distributed along the second direction, and sequentially distributed along the direction from the first end of the liquid cooling plate 500 to the second end of the liquid cooling plate 500, the fourth chute 540 is above the fifth chute 550, and the third chute 530 and the fourth chute 540 are at the same height. A fourth slider and a fifth slider are fixedly arranged at both ends of the second curved plate 800, respectively, the fourth slider is slidably arranged in the fourth chute 540, and the fifth slider is slidably arranged in the fifth chute 550.

[0056] In this embodiment, a plurality of first through slots 710 are formed on the first arc plate 700 . The first through slots 710 penetrate the first arc plate 700 . The first through slots 710 are arranged along the second direction. The plurality of first through slots 710 are sequentially distributed along the first direction.

[0057] The second arc plate 800 is provided with a plurality of second through slots 810, which penetrate the second arc plate 800, are arranged along the second direction, and are sequentially distributed along the first direction. In the first direction, the plurality of first through slots 710 and the plurality of second through slots 810 are arranged alternately.

[0058] The rotating plate 900 is provided with a plurality of third through slots 910, which penetrate the rotating plate 900, are arranged along the second direction, and are sequentially distributed along the first direction. In the first direction, the plurality of second through slots 810 and the plurality of third through slots 910 are arranged alternately.

[0059] The plurality of first through grooves 710 and the plurality of second through grooves 810 are arranged in a staggered manner, and the plurality of second through grooves 810 and the plurality of third through grooves 910 are arranged in a staggered manner, and the plurality of first through grooves 710 and the plurality of third through grooves 910 correspond to each other one by one. Thus, the first curved plate 700, the second curved plate 800 and the rotating plate 900 all have a guiding function, and the liquid in the first channel 560 can be mixed, further improving the mixing effect of the liquid flow and improving the uniformity of the liquid temperature.

[0060] When the liquid in the first channel 560 flows from the first end to the second end of the liquid cooling plate 500, the first curved plate 700 and the second curved plate 800 form a wave shape, and the first curved plate 700 and the second curved plate 800 divide the first channel 560 into two layers, and at this time, the liquid in the upper part of the first channel 560 is guided to flow in a wave shape toward the second curved plate 800 when encountering the solid part of the first curved plate 700. At this time, the upper liquid encounters the second through groove 810 of the second curved plate 800 and the solid part of the rotating plate 900. Then, the upper liquid flows from the upper part of the first channel 560 to the lower part of the first channel 560 through the second through groove 810 under the guidance of the solid part of the rotating plate 900.

[0061] At this time, since the liquid in the lower part of the first channel 560 encounters the solid part of the first curved plate 700, it is guided to flow in a wave-like manner toward the second curved plate 800, and then the lower liquid flows from the lower part of the first channel 560 to the upper part of the first channel 560 through the second through groove 810, thereby completing the mixing of the upper and lower liquids.

[0062] In this embodiment, a plurality of rotating shafts 505 are fixedly disposed in the first channel 560, and the plurality of rotating shafts 505 are sequentially distributed along the second direction, each rotating shaft 505 is disposed along the first direction, and each rotating shaft 505 is disposed between two arc-shaped flow channels 501. One end of the rotating plate 900 is rotatably disposed on the rotating shaft 505.

[0063] In this embodiment, each heat dissipation mechanism also includes a plurality of torsion springs, each of which is disposed on a rotating plate 900 , and the torsion springs connect the rotating plate 900 and the rotating shaft 505 , and the torsion springs are used to maintain the stability of the rotating plate 900 and prevent the rotating plate 900 from shaking randomly due to the influence of the water flow.

[0064] In this embodiment, a first liquid opening 506 is provided at one end of the first channel 560 close to the first end of the liquid cooling plate 500, and a second liquid opening 507 is provided at one end of the first channel 560 close to the second end of the liquid cooling plate 500. The new energy battery module high-efficiency heat dissipation device also includes a first liquid pipeline 200 and a second liquid pipeline 300, which are respectively arranged along the first direction, and the first liquid pipeline 200 is arranged above the battery frame 100, and the first liquid pipeline 200 is connected to a plurality of first liquid openings 506. The second liquid pipeline 300 is arranged below the battery frame 100, and the second liquid pipeline 300 is connected to a plurality of second liquid openings 507. A water pump is arranged in the second liquid pipeline 300.

[0065] The temperature of the battery 400 has a first temperature range and a second temperature range, and the temperature value in the first temperature range is lower than the temperature value in the second temperature range. When the battery 400 is in the first temperature range, the second liquid pipeline 300 is the liquid inlet pipeline, the first liquid pipeline 200 is the liquid outlet pipeline, and the liquid flows from the second end to the first end of the liquid cooling plate 500. When the battery 400 is in the second temperature range, the first liquid pipeline 200 is the liquid inlet pipeline, the second liquid pipeline 300 is the liquid outlet pipeline, and the flow direction of the liquid is from the first end to the second end of the liquid cooling plate 500.

[0066] In this embodiment, the new energy battery module high-efficiency heat dissipation device further includes a sensing mechanism, which includes a temperature sensor and a controller, wherein the temperature sensor is disposed on the battery frame 100 and is used to sense the temperature of the battery 400. The controller is used to control the pumping and drainage of the water pump.

[0067] Working process: When the temperature sensor senses that the battery 400 is in the first temperature range, the controller controls the water pump to drain water into the second liquid pipeline 300. The second liquid pipeline 300 is the liquid inlet pipeline, and the first liquid pipeline 200 is the liquid outlet pipeline. Figure 6 As shown (the direction of the arrow is the direction of liquid flow), the liquid flows from the second end to the first end of the liquid cooling plate 500.

[0068] At this time, under the driving force generated by the liquid flow, the rotating plate 900 is in the third state, the slide plate 600 is in the first state, the slide plate 600 and the inner wall of the first channel 560 are against each other, and the slide plate 600 blocks the liquid outlet 5012 to ensure that the liquid basically flows in the first channel 560, which can ensure smooth flow and improve heat dissipation efficiency.

[0069] At the same time, the first curved plate 700 and the second curved plate 800 are separated from each other in the vertical direction, and the first curved plate 700 is located above the second curved plate 800. Most of the liquid in the first channel 560 flows in a wave-like manner under the guidance of the first curved plate 700 and the second curved plate 800, thereby improving the mixing degree of the liquid in the first channel 560 and ensuring the uniformity of the liquid temperature and the consistency of the battery 400 temperature.

[0070] When the temperature sensor senses that the battery 400 is in the second temperature range, the controller controls the water pump to absorb water into the second liquid pipeline 300. The first liquid pipeline 200 is the liquid inlet pipeline, and the second liquid pipeline 300 is the liquid outlet pipeline. At this time, the flow direction of the liquid is from the first end to the second end of the liquid cooling plate 500. Figure 7 As shown (the direction of the arrow is the direction of liquid flow).

[0071] Due to the push of the liquid and the action of the inclined plate, the slide plate 600 is in the second state, and the liquid outlet 5012 is opened. At this time, part of the liquid will enter the arc-shaped flow channel 501 from the liquid inlet 5011 and flow out from the liquid outlet 5012 to improve the efficiency of heat dissipation for the battery 400. The liquid flowing out of the liquid outlet 5012 enters the space between the slide plate 600 and the inner wall of the first channel 560, and the liquid will produce a Venturi effect at the slide plate 600, that is, when the liquid passes through the reduced flow cross-section, the flow rate of the liquid will increase, and the pressure here will decrease, thereby generating suction on the liquid outlet 5012, and improving the flow capacity of the liquid in the arc-shaped flow channel 501.

[0072] Under the push of the liquid, the highest end of the first curved plate 700 and the highest end of the second curved plate 800 are at the same height, and the first curved plate 700 and the second curved plate 800 form a wave shape, and the first curved plate 700 and the second curved plate 800 divide the first channel 560 into two layers, upper and lower. Most of the liquid in the first channel 560 flows in a wave shape under the guidance of the first curved plate 700 and the second curved plate 800.

[0073] The rotating plate 900 is in the fourth state under the push of the liquid, that is, the rotating plate 900 and the second curved plate 800 are tilted in the same direction. The liquid flowing out of the slide plate 600 is guided by the rotating plate 900, and under the action of the first curved plate 700 and the second curved plate 800, it mixes with the liquid in the first channel 560 and flows in a wave-like manner.

[0074] The first curved plate 700 and the second curved plate 800 are staggered hollowed out, wherein the rotating plate 900 and the first curved plate 700 are the same hollowed out. The hollowed out setting allows the first curved plate 700 and the second curved plate 800 to divide the first channel 560 into two layers, and the staggered hollowed out setting allows the first curved plate 700, the second curved plate 800 and the rotating plate 900 to all have a guiding effect, thereby further improving the mixing effect of the liquid flow and improving the uniformity of the liquid temperature.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A new energy battery module high-efficiency heat dissipation device, characterized by: It includes a battery frame, a plurality of batteries and a plurality of heat dissipation mechanisms; the battery is arranged vertically, and the plurality of batteries are arranged in sequence in the battery frame along a horizontal direction, and the direction in which the plurality of batteries are arranged in sequence is a first direction; Each heat dissipation mechanism is arranged in two adjacent batteries, and each heat dissipation mechanism includes a liquid cooling plate and a plurality of sliding plates; each liquid cooling plate is vertically arranged between two adjacent batteries, and the liquid cooling plate is arranged along a second direction, the second direction is a horizontal direction, and the second direction is perpendicular to the first direction; a first channel and a plurality of arc-shaped flow channels are opened in the liquid cooling plate, and the first channel is arranged along the second direction; the plurality of arc-shaped flow channels are arranged on both sides of the upper and lower sides of the first channel, and the plurality of arc-shaped flow channels are sequentially distributed along the second direction; both ends of the arc-shaped flow channels are connected to the first channel; The slide plate is arranged along the second direction, and the slide plate can be slidably arranged in the first channel up and down, and each slide plate is arranged at one end of an arc-shaped flow channel, and the slide plate has a first state and a second state. The first state of the slide plate is that the slide plate and the inner wall of the first channel are against each other, and the slide plate blocks one end of the arc-shaped flow channel, thereby preventing the liquid from flowing in the arc-shaped flow channel; the second state of the slide plate is that the slide plate is out of contact with the first channel, and the liquid is allowed to flow in the arc-shaped flow channel. The two ends of the liquid cooling plate along the second direction are respectively a first end and a second end; the two ends of the arc-shaped flow channel are a liquid inlet and a liquid outlet; the liquid inlet is close to the first end of the liquid cooling plate, and the liquid outlet is close to the second end of the liquid cooling plate; The slide plate is arranged at the liquid outlet, and includes a first transverse plate and an inclined plate, the first transverse plate and the inclined plate are fixedly connected, and the inclined plate and the first transverse plate are sequentially distributed along the direction from the first end to the second end of the liquid cooling plate; the inclined plate gradually moves away from the inner wall of the first channel along the direction from the second end to the first end of the liquid cooling plate; Each heat dissipation mechanism further includes a plurality of first guide assemblies, which are sequentially distributed along the second direction; each first guide assembly includes a first curved plate and a second curved plate; the first curved plate and the second curved plate are both slidably arranged in the first channel; the first curved plate and the second curved plate are sequentially distributed along the direction from the first end to the second end of the liquid cooling plate, the first curved plate and the second curved plate are both curved, and the convex surface faces upward, and the first curved plate and the second curved plate are inclinedly arranged; One end of the first curved plate close to the first end of the liquid cooling plate is lower than one end of the first curved plate close to the second end of the liquid cooling plate; one end of the second curved plate close to the first end of the liquid cooling plate is higher than one end of the first curved plate close to the second end of the liquid cooling plate; Each heat dissipation mechanism also includes a plurality of second guide assemblies, which are arranged on the two side walls of the first channel, and each second guide assembly is arranged between two adjacent arc-shaped flow channels; each second guide assembly includes a rotating plate, which is inclined, and one end of the rotating plate is rotatably arranged on the peripheral wall of the first channel, and a first angle and a second angle are formed between the rotating plate and the upper and lower side walls of the first channel; the first angle is the angle between the first channel and the side of the first end of the rotating plate close to the liquid cooling plate, and the second angle is the angle between the first channel and the side of the second end of the rotating plate close to the liquid cooling plate; the rotating plate has a third state and a fourth state, and the third state of the rotating plate is that the first angle is an acute angle and the second angle is an obtuse angle; the fourth state of the rotating plate is that the first angle is an obtuse angle and the second angle is an acute angle.

2. The high-efficiency heat dissipation device for new energy battery modules according to claim 1 is characterized in that: A plurality of first chute groups, a plurality of second chute groups and a plurality of third chute groups are provided in the first channel; the plurality of first chute groups are sequentially distributed along the second direction, and each first chute group is arranged at a liquid outlet of an arc-shaped flow channel; each first chute group includes at least one first chute, the first chute is arranged vertically, and at least one first slider is fixedly arranged on the first transverse plate, and the first slider is arranged in the first chute to slide up and down; A plurality of second chute groups and a plurality of third chute groups are alternately distributed in sequence along the second direction, each second chute group includes a second chute and a third chute, the second chute and the third chute are vertically arranged, and the second chute and the third chute are sequentially distributed along the direction from the first end of the liquid cooling plate to the second end of the liquid cooling plate, and the third chute is above the second chute; a second slider and a third slider are fixedly arranged at both ends of the first arc-shaped plate, respectively, the second slider is slidably arranged in the second chute, and the third chute is slidably arranged in the third chute; Each third slide groove group includes a fourth slide groove and a fifth slide groove, the fourth slide groove and the fifth slide groove are vertically arranged, and the fourth slide groove and the fifth slide groove are distributed in sequence along the second direction, the fourth slide groove and the fifth slide groove are distributed in sequence along the direction from the first end of the liquid cooling plate to the second end of the liquid cooling plate, the fourth slide groove is above the fifth slide groove, and the third slide groove and the fourth slide groove are at the same height; the fourth slider and the fifth slider are fixedly arranged at both ends of the second arc plate, respectively, the fourth slider is slidably arranged in the fourth slide groove, and the fifth slider is slidably arranged in the fifth slide groove.

3. The high-efficiency heat dissipation device for new energy battery modules according to claim 1 is characterized in that: The first arc-shaped plate is provided with a plurality of first through slots, the first through slots penetrate the first arc-shaped plate, the first through slots are arranged along the second direction, and the plurality of first through slots are sequentially distributed along the first direction; The second arc plate is provided with a plurality of second through slots, the second through slots penetrate the second arc plate, the second through slots are arranged along the second direction, and the plurality of second through slots are sequentially distributed along the first direction; and in the first direction, the plurality of first through slots and the plurality of second through slots are staggered; A plurality of third through slots are provided on the rotating plate, the third through slots penetrate the rotating plate, the third through slots are arranged along the second direction, and the plurality of third through slots are distributed in sequence along the first direction; and in the first direction, the plurality of second through slots and the plurality of third through slots are arranged alternately.

4. The high-efficiency heat dissipation device for new energy battery modules according to claim 1 is characterized in that: A plurality of rotating shafts are fixedly arranged in the first channel, and the plurality of rotating shafts are sequentially distributed along the second direction, each rotating shaft is arranged along the first direction, and each rotating shaft is arranged between two arc-shaped flow channels; one end of the rotating plate is rotatably arranged on the rotating shaft.

5. The high-efficiency heat dissipation device for new energy battery modules according to claim 4 is characterized in that: Each heat dissipation mechanism also includes a plurality of torsion springs, each of which is arranged on a rotating plate, and the torsion spring connects the rotating plate and the rotating shaft.

6. The high-efficiency heat dissipation device for new energy battery modules according to claim 1, characterized in that: A first liquid opening is provided at one end of the first channel close to the first end of the liquid cooling plate, and a second liquid opening is provided at one end of the first channel close to the second end of the liquid cooling plate; The new energy battery module high-efficiency heat dissipation device also includes a first liquid pipeline and a second liquid pipeline. The first liquid pipeline and the second liquid pipeline are respectively arranged along the first direction. The first liquid pipeline is arranged above the battery frame, and the first liquid pipeline is connected to multiple first liquid openings; the second liquid pipeline is arranged below the battery frame, and the second liquid pipeline is connected to multiple second liquid openings.

7. The high-efficiency heat dissipation device for new energy battery modules according to claim 1 is characterized in that: It also includes a sensing mechanism, which includes a temperature sensor. The temperature sensor is arranged on the battery frame and is used to sense the battery temperature.

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