CN218827384U - Battery pack and heat dissipation assembly thereof - Google Patents

Abstract

The utility model relates to the field of injection molds, in particular to a heat dissipation component for a battery module, which comprises a static pressure cavity plate, an air inlet and an air outlet, wherein the air inlet and the air outlet are arranged on the static pressure cavity plate; middle part mounting panel homonymy interconnect forms the chamber passageway subassembly of airing exhaust of converging, it is including the air exhaust device who accepts the air chamber and be arranged in accepting the air chamber that corresponds the chamber passageway setting of converging, first end mounting panel, locate the middle part mounting panel and air exhaust between the subassembly, first end mounting panel is the closing surface towards the side of the subassembly of airing exhaust, first end mounting panel side is equipped with the second chamber of converging, the second converges the chamber and links the chamber passageway of converging and accepts the air chamber, therefore, the heat-sinking capability of battery is unanimous, the temperature homogeneity in the battery module has been improved.

Description

Battery pack and heat dissipation assembly thereof

Technical Field

The utility model relates to a battery technology field especially relates to a battery pack and radiator unit thereof.

Background

The current battery module is mainly formed by assembling a plurality of batteries, a good heat dissipation system can effectively take away the heat of each battery, and the heat dissipation effect of each battery is ensured to be the same, so that the consistency of the battery temperature is maintained, and the consistency of the battery temperature is an important factor directly influencing the performance and the service life of the battery module.

The radiating mode mainstream of present battery module adopts the forced air cooling heat dissipation, the forced air cooling radiating mode commonly used mainly adopts the middle air-out of side air supply or the preceding air-out dual mode of back air inlet, outside air dispels the heat the back to the battery through the wind channel, finally discharge through the fan, because the battery quantity of battery module is more, the mode of range is different, the amount of wind and the wind temperature through each battery are different, lead to the heat dissipation inhomogeneous to the battery, under battery operating condition, the big difference in temperature of battery module can reduce the performance and the life-span of battery module.

The principle of side air supply middle air outlet is that a branch air path cools each battery through the large surface of the battery in the module, and then gathers to a middle air duct to finally flow out of the battery module. The battery temperature that is close to the air outflow position is low, and the air that each branch road was heated passes through the battery from supreme down in proper order through middle wind channel in addition, can cause two battery temperature to be low, and middle battery temperature is high phenomenon. The principle of air-out before the air inlet of back is that outside air dispels the heat to the battery through the wind channel from module one end in proper order, finally flows from the other end, and this kind of mode can cause battery module temperature gradient great, and battery temperature low in air inlet department keeps away from the battery temperature height of air inlet department, leads to the heat dissipation inhomogeneous to the battery.

SUMMERY OF THE UTILITY MODEL

For the above-mentioned problem among the prior art, the utility model provides a battery pack and radiator unit thereof has solved the inhomogeneous problem of heat dissipation among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme:

a heat dissipation assembly for a battery module, the heat dissipation assembly comprising:

the static pressure cavity plate comprises an air inlet arranged on the side surface and air outlets positioned on the surface of the static pressure cavity plate and facing the direction of the battery module, and the air outlets are arranged in a horizontal array;

the middle mounting plates are arranged corresponding to each horizontal array of the air outlets of the static pressure cavity plate and comprise first converging cavities arranged at the side ends of the middle mounting plates, first air supply outlets arranged corresponding to the air outlets of the static pressure cavity plate and first air channels formed between the first converging cavities and the first air supply outlets; the ends of the middle mounting plate on the same side are mutually connected to form a confluence cavity channel;

the air exhaust assembly comprises an air accommodating cavity arranged corresponding to the converging cavity channel and an air exhaust device positioned in the air accommodating cavity;

the first end mounting plate is arranged between the middle mounting plate and the air exhaust assembly, the side surface of the first end mounting plate facing the air exhaust assembly is a closed surface, a second confluence cavity is arranged at the side end of the first end mounting plate, and the second confluence cavity is communicated with the confluence cavity channel and the air accommodating cavity;

the second end mounting plate is connected with the middle mounting plate and is far away from the setting of first end mounting plate, the side that the middle mounting plate was kept away from to the second end mounting plate is the closing surface, second end mounting plate side is equipped with the third chamber that converges, the third chamber that converges seals one end, the other end with converge the chamber passageway intercommunication.

The first air duct is arranged on the plate surface of the middle mounting plate to form a hollowed surface, and a first exhaust port is formed at the joint of the first air duct and the first confluence cavity.

The first end mounting plate further comprises a second air supply outlet and a second air duct, the second air supply outlet corresponds to an air outlet of the static pressure cavity plate, the second air duct is communicated with the second air supply outlet, the second air duct is formed between the second converging cavity and the second air supply outlet, the second air duct is arranged on one side opposite to the closed surface, the thickness of the second air duct is smaller than that of the first air duct, and a second air outlet is formed at the joint of the second converging cavity.

The first air duct and the second air duct are both arranged in a right angle mode.

The static pressure cavity plate is arranged in a hollow mode, and the air inlets are formed in the three side faces, far away from the air exhaust assembly, of the static pressure cavity plate.

The middle mounting plate, the first end mounting plate, the second end mounting plate and the end plate formed by the accommodating air cavity are correspondingly provided with connecting pieces and connecting grooves.

The air exhaust assembly is characterized in that the air accommodating cavity of the air exhaust assembly is provided with an installation position for installing an air exhaust device, and the thickness of the air exhaust device is the same as that of the air accommodating cavity.

In order to achieve the purpose of the utility model, the utility model discloses the technical scheme who still adopts as follows:

a battery assembly, comprising:

the battery module consists of a plurality of rows of batteries;

the radiating assembly consists of a static pressure cavity plate, a plurality of middle mounting plates, a first end mounting plate, a second end mounting plate and an exhaust assembly.

Two sides of the middle mounting plate can be respectively provided with a row of batteries, and adjacent batteries at two sides share the first air duct; every row of battery includes two batteries, the middle part mounting panel symmetry sets up and forms two sets of first wind channels, two batteries of middle part mounting panel side-mounting.

The air collecting cavity channel, the first air collecting cavity, the second air collecting cavity, the third air collecting cavity and the air accommodating cavity are separated from the battery.

The utility model discloses battery pack and radiator unit beneficial effect do: the utility model discloses a static pressure chamber board place the position, has designed a battery pack's heat radiation structure, sends into cooling gas by the supply-air outlet that the air outlet corresponds, carries out the cooling of dispelling the heat to the battery of mounting panel both sides along the wind channel, again with hot-blast by the wind channel row converge in the chamber passageway, and pass through converge in the chamber passageway with steam row income air exhaust subassembly accept the wind chamber, by the exhaust device of the subassembly of airing exhaust takes hot-air out, accomplishes the whole flow of radiating mode, to sum up, the utility model discloses a wind channel on static pressure chamber board, each mounting panel is to the even heat dissipation of battery, has improved the radiating effect, and the chamber wall and the battery of the chamber passageway that converges that connects into of converging of rethread mounting panel both sides are separated, make hot-blast can not carry out the secondary heating to the battery, can avoid the temperature cascade phenomenon, have improved the radiating efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a battery assembly according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a static pressure chamber plate in a battery assembly;

FIG. 3 is a schematic structural view of a middle mounting plate in the battery pack;

FIG. 4 is a schematic view of a first end mounting plate of the battery assembly;

FIG. 5 is a schematic view of a wind chamber in the battery pack;

FIG. 6 is a schematic view of a second end mounting plate of the battery assembly;

fig. 7 is a schematic view of the closed side of the first end mounting plate in the battery pack.

The attached drawings are as follows:

1-a static pressure cavity plate; 2-a middle mounting plate; 3-an exhaust assembly; 4-a first end mounting plate; 5-a battery module; 6-second end mounting plate; 11-air inlet; 12-an air outlet; 21-a first manifold chamber; 22-a first air supply outlet; 23-a first air duct; 24-a first exhaust port; 25-a fastener; 26-a snap groove; 31-accommodating air cavities; 32-an exhaust device; 33-a mounting location; 41-a second manifold chamber; 42-a second air supply outlet; 43-a second air duct; 44-a second air outlet; 51-a battery; 61-a third manifold chamber; 62-a third air supply outlet; 63-a third air duct; 64-a third air outlet; 211-a first connection; 212-first connecting slot; 311-a second connector;

312 — a second connection slot; 411-third connecting member; 412-a third connection slot; 611-a fourth connection; 612-fourth connecting trough.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them. In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, the terms "upper", "lower", "right", and the like are used in the orientations and positional relationships based on the orientation and positional relationship shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1, the present invention includes a battery assembly and a heat dissipation assembly for the battery assembly, wherein the heat dissipation assembly includes: the static pressure cavity plate comprises a static pressure cavity plate 1, a plurality of middle mounting plates 2, an exhaust assembly 3, a first end mounting plate 4 and a second end mounting plate 6.

Referring to fig. 1 to 3, and specifically to fig. 2, the static pressure cavity plate 1 includes an air inlet 11 disposed on a side surface and an air outlet 12 located on a surface thereof and facing a direction of the battery module, and the air inlet 11 is communicated with the air outlet 12. The air outlets 12 are arranged in a horizontal array, and for more effective air inlet, the air inlets 11 are fully distributed on the side surfaces of the static pressure cavity plates 1 and are sequentially arranged. Referring specifically to fig. 1, the middle mounting plates 2 are disposed corresponding to each horizontal array of the air outlets 12 of the static pressure cavity plate 1; referring to fig. 1 to 3 in particular, the middle mounting plate 2 includes a first collecting chamber 21 disposed at a side end thereof, a first air supply outlet 22 disposed corresponding to the air outlet 12 of the static pressure chamber plate 1, and a first air duct 23 formed between the first collecting chamber 21 and the first air supply outlet 22; referring to fig. 3 specifically, the first air duct 23 forms a hollowed surface on the surface of the middle mounting plate 2, a first exhaust port 24 is formed at a joint of the first air duct 23 and the first manifold cavity 21, and the hollowed surface of the middle mounting plate 2 can improve heat dissipation capacity in the middle mounting plate 2.

Further, referring to fig. 1, the middle mounting plate 2 is connected to form a bus chamber channel (not shown) at the same side end; specifically referring to fig. 1 and 3, two rows of batteries 51 are respectively mounted on two sides of the middle mounting plate 2, the two rows of batteries 51 share the first air duct 23, the middle mounting plate 2 is symmetrically arranged to form two groups of first air ducts 23, referring to fig. 3, the two groups of first air ducts 23 are provided with the buckling piece 25 and the buckling groove 26 at the symmetrical connection position, the batteries 51 are respectively placed on one group of first air ducts 23 on two sides of the buckling piece 25 and the buckling groove 26, and the cooling gas cools the batteries 51 through the first air ducts 23; the first air ducts 23 having the same width as each other are formed between the first air ducts 23, and the first air ducts 23 having the same width can uniformly radiate heat from the batteries 51, thereby ensuring that the air blowing speeds of the batteries 51 are uniform, and it is known from the formula Q = V × a (air volume = speed multiplied by area) that the air volumes of the cooling gas received by the batteries 51 are uniform, thereby improving the temperature uniformity of the batteries 51 in the battery module 5.

Referring to fig. 1 and fig. 5, the air exhausting assembly 3 includes an air accommodating cavity 31 corresponding to a manifold cavity channel (not labeled in the figures) and an air exhausting device 32 located in the air accommodating cavity 31, wherein the air accommodating cavity 31 of the air exhausting assembly 3 is provided with a mounting position 33 for mounting the air exhausting device 32; the thickness of the air exhaust device 32 is the same as that of the air accommodating cavity 31, and the air exhaust device 32 is used for accommodating the air exhaust device 32 and avoiding the stalling of the air exhaust device 32 with overlarge resistance.

Referring to fig. 1, 4 and 5, the first end mounting plate 4 is disposed between the middle mounting plate 2 and the air exhaust assembly 3, and a side surface of the first end mounting plate 2 facing the air exhaust assembly 3 is a closed surface; a second converging cavity 41 is arranged at the side end of the first end mounting plate 4, and the second converging cavity 41 is communicated with a converging cavity channel (not shown in the figure) and the air accommodating cavity 31. The first end mounting plate 4 converges the hot air having the heat-dissipated battery 51 into the air accommodating chamber 31 through the closed surface and discharges the hot air through the air discharging device 32, so that the heat dissipating capability of the battery 51 is uniform, and the temperature uniformity of the battery 51 in the battery module 5 is improved.

Referring to fig. 1 and 3, the first end mounting plate 4 further includes a second air supply outlet 42 disposed corresponding to the air outlet 12 of the static pressure cavity plate 1, and a second air duct 43 formed between the second manifold cavity 41 and the second air supply outlet 42; the second air duct 43 is disposed on the opposite side of the closed surface, and the thickness of the second air duct 43 is half of that of the first air duct 23. Referring to fig. 4, a second air outlet 44 is formed at a connection portion of the second air duct 43 and the second manifold chamber 41, and the closed surface of the first end mounting plate 4 can ensure that hot air exhausted from the second air outlet 44 along the second air duct 43 is exhausted into a manifold chamber channel (not shown) from the second air outlet 44, and is exhausted from the air exhaust device 32 through the accommodating air chamber 31, and the air volume received by each battery 51 is kept consistent.

Referring to fig. 1 and 6, the second end mounting plate 6 is connected to the middle mounting plate 2 and is disposed away from the first end mounting plate 4, a side of the second end mounting plate 6 away from the middle mounting plate 2 is a closed surface, a third converging cavity 61 is disposed at a side end of the second end mounting plate 6, one end of the third converging cavity 61 is closed, and the other end of the third converging cavity is communicated with the converging cavity channel (not shown), the second end mounting plate 6 is provided with a third air supply outlet 62 corresponding to the air outlet 12 of the static pressure cavity plate 1, and a third air duct 63 disposed toward a side of the middle mounting plate 2, the third air duct 63 is communicated with the third air supply outlet 62 and the third converging cavity 61, wherein, referring to fig. 4 and 6, the third air duct 63 has the same thickness as the second air duct 43; referring to fig. 6, a third air outlet 64 is formed at a connection position of the third air duct 63 and the third manifold chamber 61, referring to fig. 1, the second end mounting plate 6 is mounted at the ends of the plurality of middle mounting plates 2, so that the manifold chamber channel forms a closed channel, and the hot air is collected into the air exhaust assembly 3 through the manifold chamber channel and exhausted.

Referring to fig. 1 to 6, specifically referring to fig. 2, the static pressure chamber plate 1 is disposed in a hollow manner, the air inlets 11 are disposed on three sides of the static pressure chamber plate 1 away from the air exhaust assembly 3, the side close to the air exhaust assembly 3 is a closed side without the air inlets 11, the static pressure refers to a pressure of the air acting on the surface of an object parallel to the air flow, and actually the static pressure refers to a pressure overcoming resistance, and when the cooling air merged into the air inlets 11 on three sides is blocked by the closed side close to the air exhaust assembly 3, the generated pressure causes the merged cooling air to be discharged to the air outlet 12 on the upper end; referring to fig. 1 to 6 in particular, the air outlet 11 of the bottom static pressure cavity plate 1 corresponds to the first air supply outlet 22, the second air supply outlet 42 and the third air supply outlet 62 of the middle mounting plate 2, the first end mounting plate 4 and the second end mounting plate 6 one by one, the air flow path is clear, the air ducts are not interfered with each other, and the internal wind resistance is small.

Referring to fig. 1, fig. 3, fig. 4 and fig. 6, the first air duct 23, the second air duct 43 and the third air duct 63 are arranged in a right angle, and the right angle of the air ducts is arranged to realize air intake from below, so that the first air duct 23, the second air duct 43 and the third air duct 63 arranged in a right angle make the movement locus of the cooling gas enter the first air outlet 24, the second air outlet 44 and the third air outlet 64 connected to the side surface from bottom to top and then from left to right, so as to introduce the cooling gas into the first manifold chamber 21, the second manifold chamber 41 and the third manifold chamber 61 for air exhaust, and compared with the air duct from the left side to the left side, the air duct from the lower side to the left side has a larger area of cold air contacting the battery, and increases the heat dissipation area of the battery.

Referring to fig. 1 to 7, the middle mounting plate 2, the first end mounting plate 4, the second end mounting plate 6 and the air accommodating cavity 31 form an end plate, on which a connecting member and a connecting groove are correspondingly disposed, and particularly referring to fig. 1 and 3, both sides of the end plate of the middle mounting plate 2 are disposed with a first connecting member 211 and a first connecting groove 212; referring to fig. 1 and 5 in detail, a second connecting piece 311 and a second connecting groove 312 are provided on a side of the wind accommodating chamber 31 facing the first end mounting plate 4; referring to fig. 1 and 4 and fig. 7, both sides of the end plate of the first end mounting plate 4 are provided with a third connecting piece 411 and a third connecting groove 412; referring to fig. 6, a fourth connecting member 611 and a fourth connecting groove 612 are disposed on an end plate of the second end mounting plate 6 facing the middle mounting plate 2, and the heat dissipation assemblies are sequentially assembled through the connecting members.

The utility model also discloses a battery assembly, please refer to fig. 1, the battery assembly comprises a battery module 5 and the heat dissipation assembly, the battery module 5 is composed of a plurality of rows of batteries 51; the heat dissipation assembly is composed of a static pressure cavity plate 1, a plurality of middle mounting plates 2, an exhaust assembly 3, a first end mounting plate 4 and a second end mounting plate 6.

Preferably, referring to fig. 1 and 3, a row of batteries 51 may be respectively mounted on two sides of the middle mounting plate 2, and the adjacent batteries 51 on two sides share the first air duct 23; each row of batteries 51 comprises two batteries 51, the middle mounting plates are symmetrically arranged to form two groups of first air ducts 23, and two batteries 51 are mounted on one side of the middle mounting plate 2.

Preferably, referring to fig. 1, the manifold channel (not shown), the first manifold chamber 21, the second manifold chamber 41, the third manifold chamber 61 and the air accommodating chamber 31 are separated from the battery 51 to prevent the hot air passing through the battery 51 from contacting the battery 51, and since the battery 51 does not contact the two side manifold chambers, the heated air does not heat the battery 51 secondarily, thereby avoiding the temperature cascade phenomenon.

The battery assembly installation process is as follows:

referring to fig. 1 to 7, the battery assembly includes a battery module 5 including a plurality of rows of batteries 51 and a heat dissipation assembly, the heat dissipation assembly is first connected to a plurality of middle mounting plates 2 through a fastening member 25 and a fastening groove 26 in the middle of the first air duct 23, specifically referring to fig. 1 and 3, the middle mounting plates 2 are connected to a first connecting groove 212 through a first connecting member 211 arranged on an end plate, an accommodating space for placing the batteries 51 is formed between every two middle mounting plates 2, and each two rows of batteries 51 share the first air duct 23 on one middle mounting plate 2; specifically referring to fig. 1, 3 and 4, the middle mounting plate 2 closest to the air exhaust assembly 3 is connected to the first end mounting plate 4 through the locking member 25 and the locking groove 26, specifically referring to fig. 1 and 4, the first connecting member 211 and the second connecting groove 212, which are arranged on the end plate of the middle mounting plate 2 and face the first end mounting plate 4, are correspondingly connected to the third connecting member 411 and the third connecting groove 412, which are arranged on the end plate of the first end mounting plate 4 and face one side of the middle mounting plate 2, specifically referring to fig. 1, 5 and 7, after the air exhaust device 32 is installed in the installation position 33, the third connecting member 411 and the third connecting groove 412 of the first end mounting plate 4 are correspondingly connected to the second connecting member 311 and the second connecting groove 312 on the air accommodating chamber 31, specifically referring to fig. 1 and 7, the second end mounting plate 6 is connected to the first connecting member 211 and the first connecting groove 212, which are correspondingly arranged on the middle mounting plate 2, through the fourth connecting member 611 and the fourth connecting groove 612, after the installation, the first connecting member 211 and the first end mounting plate 12 are arranged on the middle mounting plate 2, and the air outlet 12 of the middle mounting plate 2 are aligned, and the air supply port 12 is formed.

Referring to fig. 1, in the present embodiment, a heat dissipation structure of a battery assembly is designed according to a position where the static pressure cavity plate 1 is disposed. Referring to fig. 1 to 5, cooling air is fed from the first air supply port 22, the second air supply port 42, and the third air supply port 62 of the air outlet 12 corresponding to the middle mounting plate 2, the first end mounting plate 4, and the second end mounting plate 6, the batteries 51 on both sides of the middle mounting plate 2, the first end mounting plate 4, and the second end mounting plate 6 are cooled along the first air duct 23, the second air duct 43, and the third air duct 63, and then hot air is discharged from the first air discharge port 24, the second air discharge port 44, and the third air discharge port 64 into a converging cavity channel (not shown) formed by the first air duct 23, the second air discharge port 43, and the third air discharge port 61, and hot air is discharged into the accommodating air cavity 31 of the air discharge assembly 3 through the converging cavity channel, and the air discharge device 32 discharges hot air to complete the whole flow of the heat dissipation method. The air duct with the right angle and the width being consistent is used for ensuring the cooling gas input into each battery 51 in the heat dissipation mode, the air flow is stable, the air speed is consistent, and meanwhile, because the converging cavity channel on the two sides of the middle mounting plate 2, the first end mounting plate 4 and the second end mounting plate 6 is separated from the battery 51 through the cavity wall, the secondary heating of the heated gas on the battery 51 is avoided, the phenomenon of temperature cascade is eliminated, and the heat dissipation efficiency is improved. Referring to fig. 1 and 7, since the plate surface of the first end mounting plate 4 facing the air exhausting assembly 3 is a closed surface, it is conceivable that the accommodating air chamber 31 is a closed space, and the battery 51 near the accommodating air chamber 31 is not greatly different from the other batteries 51 due to the temperature difference between the air exhausting device 32 and the other batteries 51.

To sum up, the utility model discloses a static pressure chamber board 1, first wind channel 22, second wind channel 42 and third wind channel 63 have improved the radiating effect to battery 51 uniform heat dissipation, the rethread first converging chamber 21 and second converging chamber 51 and third converging chamber 61 connect the chamber passageway (not sign in the figure) that converges that forms and keep apart battery 51, make hot-blast can not carry out the secondary heating to battery 51, can avoid the temperature to cascade the phenomenon, have improved the radiating efficiency.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A heat dissipation assembly for a battery module, the heat dissipation assembly comprising:

the static pressure cavity plate comprises an air inlet arranged on the side surface and an air outlet positioned on the surface of the static pressure cavity plate and facing the battery module direction, and the air outlets are arranged in a horizontal array;

the middle mounting plates are arranged corresponding to each horizontal array of the air outlets of the static pressure cavity plate and comprise first converging cavities arranged at the side ends of the middle mounting plates, first air supply outlets arranged corresponding to the air outlets of the static pressure cavity plate and first air channels formed between the first converging cavities and the first air supply outlets; the ends of the middle mounting plate on the same side are mutually connected to form a confluence cavity channel;

the air exhaust assembly comprises an air accommodating cavity arranged corresponding to the converging cavity channel and an air exhaust device positioned in the air accommodating cavity;

the first end mounting plate is arranged between the middle mounting plate and the air exhaust assembly, the side surface of the first end mounting plate facing the air exhaust assembly is a closed surface, a second confluence cavity is arranged at the side end of the first end mounting plate, and the second confluence cavity is communicated with the confluence cavity channel and the air accommodating cavity;

the second end mounting plate is connected with the middle mounting plate and is far away from the setting of first end mounting plate, the side that the middle mounting plate was kept away from to the second end mounting plate is the closed surface, second end mounting plate side is equipped with the third chamber that converges, third chamber one end that converges seals, the other end with converge chamber passageway intercommunication.

2. The heat dissipation assembly of claim 1, wherein the first air duct forms a hollowed surface on the surface of the middle mounting plate, and a first air outlet is formed at a connection position of the first air duct and the first collecting cavity.

3. The heat dissipation assembly of claim 1, wherein the first end mounting plate further comprises a second air supply outlet disposed corresponding to the air outlet of the static pressure cavity plate, and a second air duct formed between the second air supply outlet and the second flow converging cavity, the second air duct is disposed on the opposite side of the closed surface, the thickness of the second air duct is smaller than that of the first air duct, and a second air outlet is formed at the connection position of the second air duct and the second flow converging cavity.

4. The heat dissipation assembly of claim 3, wherein the first air channel and the second air channel are both disposed at a right angle.

5. The heat dissipation assembly of claim 1, wherein the static pressure cavity plate is hollow, and the air inlet is disposed on three sides of the static pressure cavity plate away from the air exhaust assembly.

6. The heat dissipating assembly of claim 1, wherein the middle mounting plate, the first end mounting plate, the second end mounting plate and the end plate formed by the wind receiving chamber are correspondingly provided with a connecting member and a connecting groove.

7. The heat dissipating assembly of claim 1, wherein the air accommodating chamber of the air exhausting assembly is provided with an installation position for installing an air exhausting device, and the thickness of the air exhausting device is the same as that of the air accommodating chamber.

8. A battery assembly, comprising:

the battery module consists of a plurality of rows of batteries;

the heat dissipating assembly of any of claims 1 to 7.

9. The battery assembly of claim 8, wherein a row of batteries can be mounted on each side of the middle mounting plate, and the first air duct is shared by adjacent batteries on both sides; every row of battery includes two batteries, the middle part mounting panel symmetry sets up and forms two sets of first wind channels, two batteries of middle part mounting panel side-mounting.

10. The battery assembly of claim 9, wherein the manifold chamber channel, the first manifold chamber, the second manifold chamber, the third manifold chamber, and the housing plenum are separated from the battery.

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