CN219832779U - Battery pack and electric equipment - Google Patents

Abstract

The utility model discloses a battery pack and electric equipment, the battery pack comprises: the battery cell comprises a plurality of fixing brackets and a plurality of battery cells, wherein two adjacent fixing brackets are mutually matched; the plurality of battery cells are arranged between two adjacent fixed brackets, the plurality of battery cells are distributed along the first direction, an air cooling channel is formed between the battery cells and the fixed brackets, and two ends of the air cooling channel in the first direction are respectively an air inlet and an air outlet. According to the battery pack disclosed by the embodiment of the utility model, the plurality of the electric cores are arranged between the two adjacent fixed brackets, and the cooling air can flow along the outer surfaces of the electric cores by forming the air cooling channel between the electric cores and the fixed brackets, so that the air cooling heat dissipation of the electric cores is realized, the generation of wind flow disturbance can be avoided to a greater extent, and the heat dissipation effect is improved.

Description

Battery pack and electric equipment

Technical Field

The utility model relates to the technical field of battery cell fixing, in particular to a battery pack and electric equipment.

Background

The lithium battery can generate a large amount of heat during rapid charge and discharge, the performance of the lithium battery is obviously reduced along with the temperature rise, the battery can work for a long time in a high-temperature environment, the phenomena of serious service life reduction, liquid leakage, thermal runaway and the like can occur, and the spontaneous combustion of the electric automobile can be caused seriously.

In the related art, the cylindrical battery cells are generally arranged side by side, no heat dissipation measures are provided, and heat dissipation among the battery cells is difficult.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a battery pack that has a high space utilization and a good heat dissipation effect.

The utility model further provides electric equipment.

According to an embodiment of the first aspect of the present utility model, a battery pack includes: the fixed brackets are matched with each other, and two adjacent fixed brackets are matched with each other; the battery cells are arranged between two adjacent fixed brackets, the battery cells are distributed along a first direction, an air cooling channel is formed between the battery cells and the fixed brackets, and two ends of the air cooling channel in the first direction are respectively an air inlet and an air outlet.

According to the battery pack disclosed by the embodiment of the utility model, the battery cells are arranged between two adjacent fixed brackets, and the cooling air can flow along the outer surfaces of the battery cells by forming the air cooling channel between the battery cells and the fixed brackets, so that the air cooling heat dissipation of the battery cells is realized, the generation of wind flow disorder can be avoided to a greater extent, and the heat dissipation effect is improved.

According to some embodiments of the utility model, the positions of two adjacent cells are staggered in a second direction, the second direction being perpendicular to the first direction.

In some examples, a side of each of the fixing brackets adjacent to the other fixing bracket includes a plurality of concave arc portions and a plurality of convex arc portions, the plurality of concave arc portions and the plurality of convex arc portions being staggered along the first direction.

In some examples, each of the fixing brackets is provided with a positioning structure by which a plurality of the battery cells are arranged between two adjacent fixing brackets.

In some examples, each of the concave arc portions is provided with a plurality of the positioning structures arranged at intervals along the third direction; each convex arc part is provided with a plurality of positioning structures which are arranged at intervals along the third direction, wherein the third direction is perpendicular to the first direction.

According to some embodiments of the utility model, the positioning structure is a positioning boss protruding out of the fixing support, a concave arc surface is arranged on one side, close to the battery cell, of the positioning boss, the battery cell is a cylindrical battery cell, and the outer peripheral surface of the battery cell is attached to the concave arc surface.

According to some embodiments of the utility model, each of the concave arc portions is provided with a plurality of positioning bosses arranged at intervals along a third direction; each convex arc part is provided with a plurality of positioning bosses which are arranged at intervals along the third direction, and the third direction is perpendicular to the first direction and the second direction respectively.

According to some embodiments of the utility model, the fixing support has an avoidance port at one end in a third direction, the third direction is perpendicular to the first direction, the battery pack includes a high-voltage connecting member, and the high-voltage connecting member is connected with the electric core through the avoidance port.

In some examples, the battery pack further includes a low-voltage sampling member, at least one of the fixing brackets includes a first bracket and a second bracket, the first bracket and the second bracket are arranged along a second direction, the second direction is perpendicular to the first direction and the third direction, respectively, at least one of the first bracket and the second bracket has a wire passing opening, wherein the low-voltage sampling member is sandwiched between the first bracket and the second bracket, and a connection end of the low-voltage sampling member is connected with the battery cell through the wire passing opening.

In some examples, the first support and the second support are both provided with the wire passing opening, a connection end is arranged on one side of the low-voltage sampling piece facing the first support and one side of the low-voltage sampling piece facing the second support, and the connection ends of the low-voltage sampling pieces are respectively connected with the electric cores on two sides of the fixed support through the corresponding wire passing opening.

In some examples, the other end of the fixing support in the third direction is provided with a baffle, edges of the baffles of two adjacent fixing supports are abutted, the baffle is defined with a smoke outlet, the end of the battery cell is abutted with the baffle, and the explosion-proof valve of the battery cell corresponds to the position of the smoke outlet.

In some examples, the battery pack further comprises: the busbar board, the busbar board sets up on the fixed bolster, be equipped with a plurality of exhaust passage of mutual intercommunication in the busbar board, exhaust passage with the exhaust port intercommunication, still have the fume emission mouth on the busbar board, the fume emission mouth with a plurality of exhaust passage intercommunication.

According to some embodiments of the utility model, the battery pack further comprises an end plate provided at ends of the plurality of fixing brackets in the first direction, and the end plate is in snap fit with the plurality of fixing brackets.

According to some embodiments of the utility model, the battery pack further comprises a supporting plate and a binding member, the supporting plate comprises a bottom plate and a first side plate, the binding member comprises a second side plate, a third side plate and a fourth side plate which are sequentially connected, the second side plate and the third side plate are respectively matched with two ends of the first side plate to clamp the fixed support and the battery cell, the second side plate is provided with the air inlet, and the fourth side plate is provided with the air outlet.

In some examples, the battery pack further includes a cover, at least one of the fixing bracket and the cover having a positioning protrusion, the other having a positioning recess, the positioning protrusion being in a plug-in fit with the positioning recess.

According to the electric equipment provided by the embodiment of the second aspect of the utility model, the battery pack provided by the embodiment of the first aspect of the utility model is adopted, so that the air cooling heat dissipation of the battery core is realized, the heat dissipation effect is good, the stability of the electric equipment is improved, and the electric equipment can be a vehicle, a ship, an aircraft or an energy storage cabinet.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a stationary bracket according to some embodiments of the present utility model at a viewing angle;

FIG. 2 is a schematic view of a stationary bracket in another view according to some embodiments of the present utility model;

FIG. 3 is a partial schematic view of a stationary bracket according to some embodiments of the utility model;

FIG. 4 is a schematic illustration of the installation of a stationary bracket according to some embodiments of the utility model;

FIG. 5 is a mating view of a first stationary bracket and a second bracket at a viewing angle according to some embodiments of the present utility model;

FIG. 6 is a mating view of a first stationary bracket and a second bracket in another view according to some embodiments of the utility model;

FIG. 7 is a schematic view of the installation of a first stationary bracket and a second bracket according to some embodiments of the present utility model;

FIG. 8 is a schematic structural view of a fixed bracket according to some embodiments of the present utility model;

fig. 9 is a partial schematic structure of a battery pack according to some embodiments of the present utility model;

fig. 10 is a schematic structural view of a battery pack according to an embodiment of the present utility model;

FIG. 11 is a cross-sectional view taken along section line A-A of FIG. 10;

fig. 12 is a partial structure schematic view of a battery pack according to an embodiment of the present utility model;

fig. 13 is an enlarged view of area a in fig. 12.

Reference numerals:

the battery pack 100 is provided with a battery pack,

the fixing bracket 10, the positioning structure 101, the concave arc portion 102, the convex arc portion 103, the escape opening 104, the baffle 105, the smoke outlet 1051, the positioning recess 106, the first fixing bracket 11, the second fixing bracket 12, the first bracket 121, the second bracket 122, the mounting groove 1221,

the electrical core 20 is provided with a plurality of electrical contacts,

the air-cooled channel 30,

high pressure connector 41, low pressure sampling member 42,

the manifold plate 50, the fume exhaust port 501, the exhaust passage 502,

the end plate 60, the clip groove 601,

a pallet 70, a first side plate 71, a bottom plate 72,

a second side plate 82, an air inlet 821, a third side plate 83, a fourth side plate 84, an air outlet 841,

cover 90, positioning boss 901.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A battery pack 100 according to an embodiment of the present utility model is described below with reference to fig. 1 to 13.

As shown in fig. 1 to 13, a battery pack 100 according to an embodiment of the present utility model includes: the battery cell fixing device comprises a plurality of fixing brackets 10 and a plurality of battery cells 20, wherein two adjacent fixing brackets 10 are matched with each other and used for fixing the battery cells 20, the battery cells 20 are arranged between the two adjacent fixing brackets 10, and the battery cells 20 are arranged along a first direction.

It should be noted that, the arrangement along the first direction herein means that the overall arrangement direction formed by the plurality of electric cells 20 is the first direction, the plurality of electric cells 20 may be arranged in a straight line along the first direction, that is, based on the electric cells 20 between two adjacent fixing brackets 10, the plurality of electric cells 20 form a row, and the first electric cell 20 is located at one side of the second electric cell 20 in the first direction; the plurality of cells 20 may also be arranged in a curved manner along the first direction, that is, based on two adjacent cells 20 between two adjacent fixing brackets 10, the first cell 20 is located at one side of the second cell 20 in the first direction, and the first cell 20 is also located at one side of the second cell 20 in the other direction.

An air cooling channel 30 is formed between the battery cell 20 and the fixed support 10, two ends of the air cooling channel 30 in the first direction are an air inlet 821 and an air outlet 841 respectively, namely, the air cooling channel 30 extends approximately along the arrangement direction of the battery cells 20, cooling air flows along the outer surface of the battery cells 20, the battery cells 20 can play a role in guiding the cooling air, and the cooling air can directly contact the surface of the battery cells 20, so that heat dissipation of the battery cells 20 is facilitated.

According to the battery pack 100 of the embodiment of the utility model, the battery cells 20 are arranged between two adjacent fixed brackets 10, and the air cooling channels 30 are formed between the battery cells 20 and the fixed brackets 10, so that cooling air can flow along the outer surfaces of the battery cells 20, air cooling and heat dissipation of the battery cells 20 are realized, the generation of wind flow disturbance can be avoided to a greater extent, and the heat dissipation effect is improved.

As shown in fig. 1, 9 and 11, in some examples, between two adjacent fixing brackets 10, a plurality of battery cells 20 are arranged along a first direction (left-right direction as shown in fig. 1), and positions of two adjacent battery cells 20 are staggered in a second direction (front-rear direction as shown in fig. 1), the second direction is perpendicular to the first direction, that is, the plurality of battery cells 20 are arranged in a crossing manner, so that an S shape is formed, thereby improving space utilization, improving the holding capacity of the battery cells 20 in the battery pack 100, and further improving energy density of the battery pack 100.

As shown in fig. 3, according to some embodiments of the present utility model, a side of each fixing support 10, which is close to another fixing support 10, includes a plurality of concave arc portions 102 and a plurality of convex arc portions 103, where the plurality of concave arc portions 102 and the plurality of convex arc portions 103 are staggered along a first direction (i.e., along a left-right direction as shown in fig. 3), one concave arc portion 102 is connected with one end of one convex arc portion 103, the other end of the convex arc portion 103 is connected with another concave arc portion 102, so that a side of the fixing support 10, which is close to the electric core 20, can extend in an S-shape along the first direction, the S-shaped fixing support 10 can be matched with an outer surface of the electric core 20, specifically, as shown in fig. 3, in a row of electric cores 20, a front side of the electric core 20 corresponds to the concave arc portion 102 of the other fixing support 10, a front side of the electric core 20 corresponds to the convex arc portion 103 of the other fixing support 10, the front side of the electric core 20 corresponds to the convex arc portion 103 of the one fixing support 10, the other side of the electric core 20 corresponds to the electric core 20, the other side of the electric core 20 can be connected with the other fixing support 10, the S-shaped fixing support 10 can be matched with the electric core 10, and the two electric cores 20 can be cooled down stably, and the electric core 20 can be cooled by the electric core 20 can be formed, and the electric core 20 can be stably matched with the outer surface of the electric core 20, and thus, and the electric core can be cooled by fixing the electric core 20 and the electric core 20.

The distance between each cell 20 and the inner side surface of the fixed support 10 is approximately the same, and the inner side shape of the fixed support 10 is relatively attached to the arrangement shape of the cells 20, so that the air cooling channel 30 is relatively uniform everywhere, the flow velocity of air is more stable, cooling gas can stably and fully flow through the outer surface of the cells 20, and the heat dissipation effect is improved.

In some examples, each fixing support 10 is provided with a positioning structure 101, a plurality of electric cells 20 are arranged between two adjacent fixing supports 10 through the positioning structures 101, the electric cells 20 are installed and positioned through the positioning structures 101, the electric cells 20 can be clamped and fixed by the two adjacent fixing supports 10 through the oppositely arranged positioning structures 101, the electric cells 20 are clamped and arranged between the two fixing supports 10, in addition, the positioning structures 101 can enable the outer wall surfaces of the electric cells 20 to be arranged at intervals with the wall surfaces of the fixing supports 10, and then air cooling channels 30 are formed between the outer wall surfaces of the electric cells 20 and the wall surfaces of the fixing supports 10, so that air cooling and heat dissipation of each electric cell 20 can be conveniently carried out.

Of course, the battery cell 20 may be fixed by a structure other than the positioning structure 101, for example, a tray, a bus plate, or other structures are disposed at the upper and lower ends of the battery cell 20, so that the battery cell 20 is fixed between the two fixing brackets 10.

As shown in fig. 3 and fig. 7, according to some embodiments of the present utility model, the positioning structure 101 may be a positioning boss, where the positioning boss protrudes out of the fixing support 10, so that the gap size of the air cooling channel 30 may be increased, the ventilation volume of the air cooling channel 30 is ensured, the air cooling effect on the electric core 20 is improved, where one side of the positioning boss, which is close to the electric core 20, has a concave arc surface, the electric core 20 is a cylindrical electric core, and the outer peripheral surface of the electric core 20 is attached to the concave arc surface, i.e., the arc center of the concave arc surface is located on the central axis of the electric core 20, so that the contact area between the positioning structure 101 and the electric core 20 may be increased, the stability of the electric core 20 is improved, and the positioning structure 101 may be prevented from extruding the electric core 20 to deform the electric core 20, affecting the safety and reliability of the electric core 20, and realizing protection of the fixing support 10 on the electric core 20.

As shown in fig. 3 and fig. 7, in some examples, each concave arc portion 102 is provided with a plurality of positioning bosses, and the plurality of positioning bosses are arranged at intervals along a third direction (up-down direction as shown in fig. 3), so that on one hand, the positioning effect on the mounting of the battery cell 20 can be improved, on the other hand, sufficient gaps can be reserved for the air cooling channel 30, the ventilation quantity of the air cooling channel 30 is ensured, and the heat dissipation effect is improved.

Correspondingly, each convex arc part 103 is provided with a plurality of positioning bosses, and the positioning bosses are arranged at intervals along a third direction (up-down direction as shown in fig. 3), so that on one hand, the positioning effect on the battery cell 20 during installation can be improved, on the other hand, sufficient gaps can be reserved for the air cooling channel 30, the ventilation quantity of the air cooling channel 30 is ensured, and the heat dissipation effect is improved.

As shown in fig. 3 and fig. 7, the third direction (up-down direction as shown in fig. 3) is perpendicular to the first direction and the second direction, that is, the plurality of positioning bosses are arranged at intervals along the vertical direction, and the plurality of positioning bosses can respectively position the upper end and the lower end of the battery cell 20, so that the stability of the battery cell 20 is improved; meanwhile, the air flow can be divided into a plurality of air flows in the third direction by the plurality of positioning bosses which are arranged at intervals, the probability of wind flow disorder generation can be reduced, cooling air can flow uniformly, and the air cooling radiating effect is improved.

As shown in fig. 2 and 9, in some examples, in the third direction, two adjacent fixing brackets 10 may be engaged by a clamping position, and after the two adjacent fixing brackets are engaged, a plurality of positioning clamping grooves may be formed, the shape of the positioning clamping groove is matched with the shape of the pole on the electric core 20, and the position of the positioning clamping groove corresponds to the position of the pole of the electric core 20, so that the positioning of the pole of the electric core 20 is realized by inserting and matching with the pole of the electric core 20 and the positioning clamping groove, and the function of fixing the electric core 20 is also realized.

In other examples, in two adjacent fixing brackets 10, one fixing bracket 10 is provided with a fixing beam extending towards the other fixing bracket 10, the other fixing bracket 10 is provided with a matching hole, the two adjacent fixing brackets 10 are in plug-in matching with the matching hole through the fixing beam, meanwhile, the fixing beam forms a positioning structure, and the battery cell 30 is fixed between the two adjacent fixing beams, so that the positioning of the battery cell is realized.

As shown in fig. 2, according to some embodiments of the present utility model, the battery pack 100 includes a high voltage connector 41, and in the up-down direction, the upper end of the fixing support 10 has a relief port 104, and the high voltage connector 41 may be connected to the battery cell 20 through the relief port 104, i.e., the fixing support 10 is left empty at a position where the fixing support needs to be welded to the battery cell 20, so that the high voltage connector 41 is convenient to install, and the high voltage connector 41 may be in stable contact with the battery cell 20, and meanwhile, a grid is performed in a non-welding area of the battery cell 20, thereby ensuring electrical gap and insulation safety.

The high-voltage connector 41 is a plurality of tabs, and each tab is connected to two adjacent cells 20, and is connected to connect the plurality of cells 20 in series.

As shown in fig. 2, in some examples, the battery pack 100 further includes a low voltage sampling member 42, the fixing support 10 includes a first support 121 and a second support 122, the first support 121 and the second support 122 are arranged along a second direction (front-rear direction as shown in fig. 2), the second direction is perpendicular to the first direction and the third direction, a wire passing opening is formed on the first support 121 or the second support 122, or wire passing openings are formed on the first support 121 and the second support 122, wherein the low voltage sampling member 42 is sandwiched between the first support 121 and the second support 122, and a connection end of the low voltage sampling member 42 is connected with the battery cell 20 through the wire passing opening to sample data of the battery cell 20, and a connection end of the low voltage sampling member 42 may be a nickel plate.

By disposing the low pressure sampling member 42 between the first and second brackets 121, 122 such that the low pressure sampling and high pressure connections are separated, the high pressure connection can be reduced from interfering with the accuracy of the sampling.

As shown in fig. 4, in some examples, the first bracket 121 and the second bracket 122 may each have a wire passing opening, a side (a front side as shown in fig. 4) of the low-voltage sampling member 42 facing the first bracket 121 is provided with a connection end, a side (a rear side as shown in fig. 4) of the low-voltage sampling member 42 facing the second bracket 122 is also provided with a connection end, and the connection ends on two sides of the low-voltage sampling member 42 are respectively connected with the electric cores 20 on two sides (front and rear sides as shown in fig. 4) of the fixed bracket 10 through corresponding wire passing openings, so that centralized collection of data of a plurality of electric cores 20 is realized, data sampling efficiency of the electric cores 20 can be improved, and cost can be saved.

Of course, the number of the low-voltage sampling pieces 42 between the adjacent first brackets 121 and second brackets 122 may be two, where the connection end of one low-voltage sampling piece 42 is connected with the electric core 20 through the wire passing port of the first bracket 121, and the connection end of the other low-voltage sampling piece 42 is connected with the electric core 20 through the wire passing port of the second bracket 122, so that separate sampling of the electric core 20 data on two sides of the fixed bracket 10 is realized, and accuracy of data sampling can be improved.

As shown in fig. 6, in some examples, the second bracket 122 has a mounting groove 1221 near the first bracket 121, and the low voltage sampling member 42 may be placed in the mounting groove 1221, so that the installation of the low voltage sampling member 42 may be avoided from taking up too much space, thereby reducing the thickness of the fixing bracket 10, reducing the space taken up by structures other than the battery cells 20, and facilitating the accommodation of more battery cells 20 in the battery pack 100 and improving the energy density.

As shown in fig. 1 and 8, in some examples, the fixing bracket 10 includes two first fixing brackets 11 and second fixing brackets 12, the two first fixing brackets 11 are located at both ends in the front-rear direction, the second fixing brackets 12 are located between the two first fixing brackets 11, the number of the second fixing brackets 12 is at least one, the plurality of second fixing brackets 12 are arranged along the second direction, and the plurality of second fixing brackets 12 are located between the two first fixing brackets 11.

The second fixing support 12 may be matched with the first fixing support 11 to fix a set of battery cells 20, where one side of the first fixing support 11 close to the battery cells 20 extends along an S shape, so that a plurality of battery cells 20 of the set of battery cells 20 are all placed in a crossed manner, space utilization is improved, one side of the first fixing support 11 far away from the battery cells 20 extends along a first direction in a straight line, which is convenient for an operator to hold, and is convenient for limiting, and the battery pack 100 is convenient to assemble.

The second fixing brackets 12 are arranged at intervals along the front-rear direction, one side of the second fixing bracket 12, which is close to the battery cells 20, extends in an S shape, namely, the front side and the rear side surfaces of the second fixing bracket 12 extend in an S shape, two adjacent second fixing brackets 12 are matched with each other, a group of battery cells 20 can be fixed, the battery cells 20 of the group of battery cells 20 are arranged in a crossed mode, the arrangement of the battery cells 20 is tighter, more battery cells 20 can be placed in a limited space, and the energy density is improved.

In some examples, the second stationary support 12 comprises two parts, and in particular, the second stationary support 12 comprises a first support 121 and a second support 122 cooperatively formed to secure the low pressure sample member 42 inside the second stationary support 12, although the second stationary support 12 may be a unitary piece.

As shown in fig. 1, 3 and 8, in some examples, the lower ends of the fixing brackets 10 in the third direction are provided with baffles 105, edges of the baffles 105 of two adjacent fixing brackets 10 are mutually abutted, the baffles 105 can define a smoke outlet 1051, the end of the battery cell 20 is abutted with the baffles 105, and the explosion-proof valve of the battery cell 20 corresponds to the position of the smoke outlet 1051, so that smoke discharged by the explosion-proof valve when the battery cell 20 is out of control is directly discharged through the smoke outlet 1051, under the shielding of the baffles 105, the probability that smoke discharged by a single battery cell 20 flows to other battery cells 20 can be reduced, the probability of thermal control of a plurality of battery cells 20 is further reduced, and safety is ensured.

It will be appreciated that the baffles 105 on each mounting bracket 10 may define the exhaust port 1051 alone, or that the baffles 105 on each mounting bracket 10 may define a portion of the exhaust port 1051 such that when two adjacent baffles 105 are mated with each other, the entire exhaust port 1051 is formed.

As shown in fig. 12 and 13, in some examples, the battery pack 100 further includes: the busbar 50, the busbar 50 sets up the lower extreme at a plurality of fixed bolster 10, be provided with a plurality of exhaust passage 502 of mutual intercommunication in the busbar 50, exhaust passage 502 and a plurality of exhaust ports 1051 intercommunication still have the flue gas discharge port 501 on the busbar 50, flue gas discharge port 501 and a plurality of exhaust passage 502 intercommunication for after the exhaust passage 502 of the exhaust port 1051 exhaust heat cigarette merges along the busbar 50, discharge the security to the battery package 100 outside through the flue gas discharge port 501 of busbar 50, has guaranteed the security of whole battery package 100.

It should be noted that, the flue busbar 50 may be made of metal materials such as aluminum plate or steel plate, and has high structural strength and long service life, and may dissipate heat of hot smoke to a certain extent, so as to improve the safety of the battery pack 100.

As shown in fig. 9, according to some embodiments of the present utility model, the battery pack 100 further includes an end plate 60, the end plate 60 being disposed at an end of the plurality of fixing brackets 10 in the first direction, and the end plate 60 may be connected with the plurality of fixing brackets 10 to fix the plurality of fixing brackets 10.

As shown in fig. 9, in some specific examples, the fixing support 10 has a buckle at an end portion in the first direction, and the end plate 60 may be provided with a plurality of clamping grooves 601 opposite to the positions of the buckle, so that the end plate 60 may be fastened and fixed with the plurality of fixing supports 10, and the fixing support 10 is convenient to operate, and plays a role in pre-tightening the plurality of fixing supports 10, so that the battery cell 20 and the fixing support 10 are reliably matched, and stability of the battery pack 100 is improved.

As shown in fig. 11, according to some embodiments of the present utility model, the battery pack 100 further includes a supporting plate 70 and a binding member, the supporting plate 70 includes a bottom plate 72 and a first side plate 71, and the binding member includes a second side plate 82, a third side plate 83 and a fourth side plate 84 sequentially connected, wherein the second side plate 82 and the fourth side plate 84 may be respectively engaged with both ends of the first side plate 71 to clamp the fixing bracket 10 and the battery cell 20, and may be fixedly connected by a fastener, and the binding member may be tightly engaged with and wrapped around the outer side of the fixing bracket 10 by tightening the fastener, so as to limit the displacement of the plurality of fixing brackets 10 and the battery cell 20, and improve the fixing effect on the battery cell 20.

The second side plate 82 is provided with an air inlet 821 of the air cooling channel 30, and the fourth side plate 84 is provided with an air outlet 841 of the air cooling channel 30, so that air flows from one end of the air cooling channel 30 to the other end, and heat dissipation of the battery cell 20 is achieved.

In addition, the binding member may be fixedly connected to the bottom plate 72 by a fastener to further fix the binding member, so as to improve the limiting effect on the fixing bracket 10.

In some examples, the binding piece can be made of metal materials such as steel rolled bands, is stretch-resistant, is beneficial to firmly binding the battery cell 20 and the fixed bracket 10, and has long service life; and the binding piece can be integrally formed by stamping, so that the structural strength is high, and the safety protection capability of the battery pack 100 is improved.

In some examples, the end plate 60 is located inside the second side plate 82 and the fourth side plate 84, and a flexible energy absorbing material such as foam or rubber may be disposed between the first side plate 71 and the fixing bracket 10, and a flexible energy absorbing material such as foam or rubber may also be disposed between the third side plate 83 and the fixing bracket 10, so that the impact of external force applied to the battery pack 100 may be attenuated, and the safety protection capability of the battery pack 100 is improved.

In some specific examples, when the battery pack 100 is assembled, an operator can incline the bottom plate 72 at a certain angle, for example, the front side of the bottom plate 72 can be lifted, the first fixing support 11 is firstly placed on the bottom side of the bottom plate 72, then one layer of the battery cells 20 and one layer of the second fixing support 12 are sequentially placed from bottom to top along the incline direction of the bottom plate 72, one layer of the battery cells 20 are ensured to be arranged on two sides of each second fixing support 12, the operator can control the stacking layer number of the battery cells 20 according to design requirements, finally, one first fixing support 11 is placed, and a plurality of fixing supports 10 and a plurality of layers of battery cells 20 slide down obliquely along the extending direction of the bottom plate 72 under the action of gravity, so that layer stacking between the fixing supports 10 and the battery cells 20 is realized, and the area occupied by the stations can be saved; after stacking, the binding pieces are locked and attached by tightening the binding pieces and the bottom plate 72 and fastening pieces between the binding pieces and the first side plates 71, so that the battery cells 20 and the fixing support 10 are firmly bound, and the fixing effect on the battery cells 20 is improved; after the binding piece is locked, foam on two sides of the battery pack 100 is extruded and deformed, so that tolerance generated during assembly of the battery pack 100 can be absorbed, and meanwhile, the fixing support 10 can be pressed tightly, so that displacement of the fixing support 10 is limited, the fixing effect on the battery cell 20 is improved, and the stability of the battery pack 100 is improved.

As shown in fig. 10, according to some embodiments of the present utility model, the battery pack 100 further includes a cover 90, the cover 90 may be fixedly connected to the bottom plate 72 by a fastener, the cover 90 has a positioning protrusion 901, and at least one fixing bracket 10 has a positioning recess 106, the positioning protrusion 901 is in plug-in fit with the positioning recess 106, so that the cover 90 may restrict the movement of the fixing bracket 10, and at the same time, strengthen the structural strength of the battery pack 100; of course, the cover 90 may also have a positioning recess 106, and correspondingly, at least one of the fixing brackets 10 has a positioning protrusion 901.

In some specific examples, the number of the positioning convex portions 901 may be plural, and the plural positioning convex portions 901 may be arranged at intervals along the first direction, correspondingly, the number of the positioning concave portions 106 may be plural, and the projection positions of the plural positioning concave portions 106 and the plural positioning convex portions 901 in the second direction are opposite, so that the positioning convex portions 901 are convenient to be in plug-in fit with the positioning concave portions 106, so that the cover body 90 may restrict the movement of the fixing bracket 10 in the first direction, and effective positioning of the fixing bracket 10 is achieved.

It should be noted that, the positioning convex portion 901 may be arc-shaped, and correspondingly, the positioning concave portion 106 may also be arc-shaped, so that the contact area between the positioning convex portion 901 and the positioning concave portion 106 is increased, and the positioning effect of the cover body 90 on the fixing bracket 10 may be improved.

It can be appreciated that the positioning protruding portion 901 may be integrally formed with the cover 90 by punching, the positioning recessed portion 106 may be integrally formed with the fixing bracket 10 by punching, so as to facilitate processing, and reduce the influence on the structural strength of the fixing bracket 10 and the cover 90, so as to improve the protection capability of the battery pack 100.

According to the electric equipment provided by the embodiment of the utility model, the battery pack 100 is adopted to realize air cooling heat dissipation of the battery core 20, the heat dissipation effect is good, the stability of the electric equipment is improved, and the electric equipment can be a vehicle, a ship, an aircraft or an energy storage cabinet.

Other constructions and operations of the battery pack 100 according to the embodiment of the present utility model are known to those of ordinary skill in the art, and will not be described in detail herein. In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. The vertical direction, the horizontal direction, and the front-rear direction are defined by the vertical direction, the horizontal direction, and the front-rear direction in the drawing.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (15)

1. A battery pack, comprising:

the fixed brackets are matched with each other, and two adjacent fixed brackets are matched with each other;

the battery cells are arranged between two adjacent fixed brackets, the battery cells are distributed along a first direction, an air cooling channel is formed between the battery cells and the fixed brackets, and two ends of the air cooling channel in the first direction are respectively an air inlet and an air outlet.

2. The battery pack of claim 1, wherein adjacent cells are offset in position in a second direction, the second direction being perpendicular to the first direction.

3. The battery pack according to claim 2, wherein a side of each of the fixing brackets adjacent to the other fixing bracket includes a plurality of concave arc portions and a plurality of convex arc portions, the plurality of concave arc portions and the plurality of convex arc portions being staggered in the first direction.

4. A battery pack according to claim 3, wherein each of the fixing brackets is provided with a positioning structure by which a plurality of the electric cells are arranged between adjacent two fixing brackets.

5. The battery pack according to claim 4, wherein the positioning structure is a positioning boss protruding from the fixing support, one end of the positioning boss protruding from the fixing support is provided with a concave arc surface, the battery cell is a cylindrical battery cell, and the outer peripheral surface of the battery cell is attached to the concave arc surface.

6. The battery pack according to claim 5, wherein each of the concave arc portions is provided with a plurality of the positioning bosses arranged at intervals in a third direction; each convex arc part is provided with a plurality of positioning bosses which are arranged at intervals along the third direction, and the third direction is perpendicular to the first direction and the second direction respectively.

7. The battery pack according to claim 1, wherein the fixing bracket has an escape opening at one end in a third direction perpendicular to the first direction, and the battery pack includes a high-voltage connection member connected to the battery cell through the escape opening.

8. The battery pack of claim 7, wherein the battery pack further comprises a low voltage sample, at least one of the stationary brackets comprises a first bracket and a second bracket, the first bracket and the second bracket being arranged in a second direction, the second direction being perpendicular to the first direction and the third direction, respectively, at least one of the first bracket and the second bracket having a wire passing opening,

the low-voltage sampling piece is clamped between the first bracket and the second bracket, and the connecting end of the low-voltage sampling piece is connected with the battery cell through the wire passing port.

9. The battery pack according to claim 8, wherein the first bracket and the second bracket are respectively provided with the wire passing opening, a side of the low-voltage sampling piece facing the first bracket and a side of the low-voltage sampling piece facing the second bracket are respectively provided with a connecting end, and the connecting ends of the low-voltage sampling pieces are respectively connected with the electric cores on two sides of the fixed bracket through the corresponding wire passing openings.

10. The battery pack according to claim 7, wherein the other end of the fixing bracket in the third direction is provided with a baffle, edges of the baffles of two adjacent fixing brackets are abutted, the baffle is defined with a smoke outlet, the end of the battery cell is abutted with the baffle, and the explosion-proof valve of the battery cell corresponds to the position of the smoke outlet.

11. The battery pack of claim 10, wherein the battery pack further comprises: the busbar board, the busbar board sets up on the fixed bolster, be equipped with a plurality of exhaust passage of mutual intercommunication in the busbar board, exhaust passage with the exhaust port intercommunication, still have the fume emission mouth on the busbar board, the fume emission mouth with a plurality of exhaust passage intercommunication.

12. The battery pack of claim 1, further comprising an end plate provided at ends of the plurality of fixing brackets in the first direction, the end plate being snap-fitted with the plurality of fixing brackets.

13. The battery pack according to claim 1, further comprising a pallet and a tie-down member, wherein the pallet comprises a bottom plate and a first side plate, the tie-down member comprises a second side plate, a third side plate and a fourth side plate which are sequentially connected, the second side plate and the third side plate are respectively matched with two ends of the first side plate to clamp the fixing support and the battery cell, the second side plate is provided with the air inlet, and the fourth side plate is provided with the air outlet.

14. The battery pack of any one of claims 1-13, further comprising a cover, one of at least one of the mounting bracket and the cover having a locating boss and the other having a locating recess, the locating boss being in mating engagement with the locating recess.

15. A powered device comprising a battery pack according to any one of claims 1-14.