CN219393556U - Vehicle, soft package battery pack and cooling structure - Google Patents

Abstract

The utility model relates to a vehicle, a soft package battery pack and a cooling structure, when the soft package battery is in thermal runaway, heat flow generated by the thermal runaway breaks through sealant at the position of a lug to be flushed out, the flushed heat flow acts on a flow guide pipe to enable the temperature of the flow guide pipe to be increased, when the temperature of the flow guide pipe is higher than a preset temperature value after the flow guide pipe is heated, the flow guide pipe is penetrated through in a fusing mode, so that cooling medium is sprayed out from the flow guide pipe towards the position of the lug, and further the position of the lug flushed out by the heat flow can be cooled quickly and effectively, and personal and property safety is prevented from being endangered. Meanwhile, only the penetrating space for the honeycomb duct to penetrate is reserved, excessive design space cannot be occupied, the honeycomb duct is adopted for actively cooling, the consumption is less, the materials are easy to obtain, and the cost is low.

Description

Vehicle, soft package battery pack and cooling structure

Technical Field

The utility model relates to the technical field of batteries, in particular to a vehicle, a soft package battery pack and a cooling structure.

Background

If the soft package battery pack is out of control in use, a large amount of heat and even fire or explosion can be generated instantaneously, and serious safety accidents can be generated. In order to avoid endangering personal and property safety when thermal runaway occurs, it is necessary to cool down and cool down the thermal runaway portion in time and effectively. The traditional mode is to increase the physical heat insulation structure to insulate against heat the protection to the soft packet of group battery, has not only increased the cost, occupies more design space moreover.

Disclosure of Invention

Accordingly, it is necessary to provide a vehicle, a soft pack battery pack, and a cooling structure for solving the problems that not only the cost is increased, but also a large design space is occupied.

The technical scheme is as follows:

in one aspect, a cooling structure is provided, the cooling structure is applied to a soft package battery pack, the soft package battery pack comprises a soft package battery, the soft package battery comprises a pole lug and a shell, the pole lug stretches out from the shell, a sealant is arranged between the pole lug and the shell, the sealant can be broken through by heat flow generated by thermal runaway of the soft package battery, the cooling structure comprises a guide pipe, the guide pipe extends to be attached to the pole lug or is arranged at a preset interval with the pole lug, and when the temperature of the guide pipe is higher than a preset temperature value, the guide pipe can be melted through to spray cooling medium towards the pole lug.

The technical scheme is further described as follows:

in one embodiment, one end of the flow guiding pipe is used for being communicated with a cooling medium source to convey the cooling medium to the flow guiding pipe, the cooling medium source is provided with a first connector, one end of the flow guiding pipe is provided with a second connector communicated with the first connector, and the second connector is detachably connected with the first connector.

In one embodiment, the cooling medium source is a cooling plate, the cooling plate is arranged at the bottom of the soft package battery pack, and the communication part of the flow guide pipe and the cooling plate is close to the middle part of the cooling plate.

In one embodiment, the number of the guide pipes is at least two, the communication part of each guide pipe and the cooling plate is close to the middle part of the cooling plate, and each guide pipe extends to be attached to the corresponding tab or is arranged at a preset distance from the corresponding tab.

In one embodiment, the flow guide pipe is arranged at one side of the soft package battery, the distance from the central axis of the flow guide pipe to the soft package battery is L, 2D is less than L and less than 5T, the installation height of the central axis of the flow guide pipe is H, 2/3H is less than H and less than H+D, wherein D is the diameter of the flow guide pipe, and T is the thickness of the soft package battery; and H is the height of the soft package battery.

In one embodiment, an included angle between a connecting line of the central axis of the flow guide pipe and the bottom side line of the soft package battery and a side corresponding to the soft package battery is alpha, wherein 0 degrees is less than alpha less than 30 degrees.

On the other hand, a soft package battery pack is provided, which comprises at least two soft package batteries electrically connected with each other and the cooling structure.

In one embodiment, the soft package battery pack comprises a mounting frame, the mounting frame is connected with the circumferential side surfaces of the lugs of each soft package battery, and the mounting frame is provided with a connecting part connected with the guide pipe.

In one embodiment, the connection portion is provided as a clamping groove for clamping engagement with the guide tube.

In yet another aspect, a vehicle is provided that includes the pouch pack.

According to the vehicle, the soft package battery pack and the cooling structure, when the soft package battery is in thermal runaway, the sealant at the position of the lug is broken through by heat flow generated by the thermal runaway and is flushed out, the flushed-out heat flow acts on the guide pipe to enable the temperature of the guide pipe to rise, when the temperature of the heated guide pipe is higher than a preset temperature value, the guide pipe is penetrated through in a fusing mode, so that the guide pipe sprays cooling medium towards the position of the lug, and further the position of the lug flushed out by the heat flow can be cooled rapidly and effectively, and personal and property safety is prevented from being endangered. Meanwhile, only the penetrating space for the honeycomb duct to penetrate is reserved, excessive design space cannot be occupied, the honeycomb duct is adopted for actively cooling, the consumption is less, the materials are easy to obtain, and the cost is low.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a soft pack battery pack according to an embodiment;

fig. 2 is a partial enlarged view of a portion a of the pouch battery pack of fig. 1;

fig. 3 is a schematic structural view of a cooling structure of the soft pack battery pack of fig. 1;

fig. 4 is a partial enlarged view of a portion B of the pouch battery pack of fig. 3;

fig. 5 is a schematic view of the position between the soft pack battery and the flow guide tube.

Reference numerals illustrate:

10. a soft pack battery pack; 100. a cooling structure; 110. a cooling plate; 111. a first joint; 120. a flow guiding pipe; 121. a second joint; 200. a soft pack battery; 210. a mounting frame; 211. a connection part; 2111. a clamping groove; 220. and a tab.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

The pouch battery 200 of the pouch battery pack 10 includes a tab 220 and a case, the tab 220 protrudes from the inside of the case, and the tab 220 and the case are hermetically connected with each other by a sealant. When thermal runaway occurs in the interior of the pouch battery 200, the heat flow generated by the thermal runaway breaks through the sealant to be flushed out, specifically, the heat flow breaks through the sealant from the position where the tab 220 is located, so that fire or explosion is easy to occur, and personal and property safety is endangered. The conventional method performs heat insulation protection by adding physical heat insulation structures such as heat insulation plates in the circumferential direction of the soft pack battery pack 10, so that the cost is increased, and more design space is occupied.

As shown in fig. 1, in one embodiment, a vehicle is provided that includes a soft pack battery pack 10, with the soft pack battery pack 10 being capable of providing driving power for the vehicle. Meanwhile, when the soft pack battery pack 10 is out of control, the soft pack battery pack can be rapidly and effectively cooled, and personal and property safety is prevented from being endangered.

As shown in fig. 1 and 3, the soft pack battery pack 10 includes at least two soft pack batteries 200 and a cooling structure 100 electrically connected to each other. Therefore, the cooling structure 100 can actively cool the thermal runaway part of the soft pack battery 200, so that compared with the traditional mode of adopting a physical heat insulation structure for heat insulation protection, the cost is lower, excessive design space is not occupied, and the energy density of the soft pack battery pack 10 is ensured.

As shown in fig. 3, specifically, the cooling structure 100 includes a draft tube 120.

The guiding tube 120 extends to be mutually attached to the tab 220 or the guiding tube 120 extends to be arranged at a preset interval with the tab 220. Moreover, when the temperature of the nozzle 120 is higher than the preset temperature value, the nozzle 120 can be melted through to spray the cooling medium toward the tab 220. Thus, when the soft package battery 200 is in thermal runaway, the sealant at the position of the tab 220 is broken by the heat flow generated by the thermal runaway and is flushed out, the flushed-out heat flow acts on the flow guide pipe 120 to raise the temperature of the flow guide pipe 120, when the temperature of the heated flow guide pipe 120 is higher than a preset temperature value, the flow guide pipe 120 is penetrated through in a fusing manner, so that the flow guide pipe 120 sprays cooling medium towards the position of the tab 220, and the position of the tab 220 flushed out by the heat flow can be cooled quickly and effectively, thereby avoiding endangering personal and property safety.

Meanwhile, compared with the traditional mode of adopting a physical heat insulation structure to perform heat insulation protection, the cooling structure 100 of the embodiment of the application only needs to reserve the penetrating space for the honeycomb duct 120 to penetrate, does not occupy excessive design space, adopts the honeycomb duct 120 to perform active cooling and cooling, and has the advantages of less material consumption, easier material acquisition and lower cost.

Alternatively, the material of the flow guiding tube 120 is relatively easy to melt through when heated. The temperature of the flow guide tube 120, that is, the preset temperature value, can be flexibly selected or adjusted according to the actual use requirement, and only the heat flow punched from the position of the tab 220 is enough to melt the flow guide tube 120 when the soft package battery 200 is out of control.

It should be noted that, the extension of the flow guide tube 120 to be attached to the tab 220 may be guiding the flow guide tube 120 to extend to contact with the tab 220, and may extend the flow guide tube 120 to the side of the tab 220 to contact with the tab 220, for example, the left side or the right side, may be flexibly arranged according to the actual space conditions, and only needs to satisfy that when the portion of the tab 220 has heat flow to be flushed out, the flushed-out heat flow is sufficient to melt through the flow guide tube 120 and make the flow guide tube 120 spray the cooling medium toward the portion of the tab 220 having heat flow to cool down.

It should be noted that, the guide tube 120 extends to be spaced from the tab 220 by a preset distance, and the guide tube 120 may be located beside (left side or right side) the tab 220 and spaced from the tab 220 by a preset distance; alternatively, the flow guide tube 120 is located above (above left or above right) the tab 220 and is spaced apart from the tab 220 by a preset distance; the cooling device is only required to meet the requirement that when the heat flow is flushed out from the position of the tab 220, the flushed-out heat flow is sufficient to melt through the guide pipe 120 and enable the guide pipe 120 to spray cooling medium towards the position of the tab 220 flushed out by the heat flow so as to cool down.

As shown in fig. 5, in one embodiment, the flow guide tube 120 is disposed at one side of the soft pack battery 200, the distance between the central axis of the flow guide tube 120 and the soft pack battery 200 is L, and 2D < L < 5T, the installation height of the central axis of the flow guide tube 120 is H, and 2/3H < h+d, wherein D is the diameter of the flow guide tube 120, and T is the thickness of the soft pack battery 200; h is the height of the pouch cell 200. So arranged, the guiding tube 120 is located at a proper position relative to the soft package battery 200, so that the guiding tube 120 is not occupied more space, and when the heat flow is ejected from the position where the tab 220 is located, the ejected heat flow is sufficient to melt through the guiding tube 120 and the guiding tube 120 ejects cooling medium towards the position where the tab 220 is located for cooling.

The mounting height of the central axis of the flow tube 120 is a vertical distance from the central axis of the flow tube 120 to the bottom of the pouch cell 200.

Further, as shown in fig. 5, an angle α is formed between a line connecting the central axis of the flow guide 120 and the bottom edge of the pouch cell 200 and the corresponding side of the pouch cell 200, wherein 0 ° < α < 30 °. Therefore, when the heat flow is punched out of the position where the lug 220 is located, the punched heat flow is enough to melt through the guide pipe 120, so that the guide pipe 120 ejects cooling medium towards the position where the lug 220 punched out of the heat flow is located to cool down, and the cooling effect is guaranteed.

More specifically, one end of the draft tube 120 is configured to communicate with a source of cooling medium, thereby enabling the source of cooling medium to deliver cooling medium within the draft tube 120. As shown in fig. 4, the cooling medium source is provided with a first joint 111, and one end of the flow guiding tube 120 is provided with a second joint 121, so that the connection between the second joint 121 and the first joint 111 is utilized to simply and conveniently realize the communication between the flow guiding tube 120 and the cooling medium source, and when the flow guiding tube 120 is melted somewhere, the cooling medium source can supply the cooling medium into the flow guiding tube 120 and spray the cooling medium from the melted part so as to cool the part where the tab 220 with heat flow is washed out.

Optionally, the second connector 121 is detachably connected to the first connector 111. In this way, the flow guide 120 is easily replaced according to the use requirement. Of course, in other embodiments, the second connector 121 and the first connector 111 may be connected in a non-detachable manner, such as welding, so long as the cooling medium in the cooling medium source can enter the flow guiding tube 120.

Specifically, the first connector 111 and the second connector 121 may be in a plug-fit communication mode or a screw-fit communication mode, which only needs to enable the cooling medium in the cooling medium source to flow into the flow guide 120.

The cooling medium source may be configured in a tubular or plate-like structure, and may be supplied to the flow guide tube 120 from the outside, that is, the cooling medium source may be independent of the soft pack battery pack 10, or may be integrated on the soft pack battery pack 10, so long as the cooling medium source is supplied into the flow guide tube 120.

In one embodiment, the cooling medium source is provided as a cooling plate. The cooling plate 110 may be made of a material with relatively good heat conducting performance, such as aluminum, and the cooling plate 110 is provided with a cooling medium, and the cooling plate 110 is disposed on one side of the soft pack battery pack 10 and is in heat transfer fit with the soft pack battery pack 10, so that heat generated by the soft pack battery pack 10 can be transferred to the cooling medium in the cooling plate 110, and the heat can be emitted through the flow of the cooling medium to ensure that the soft pack battery pack 10 can work in a normal temperature range.

Specifically, the cooling plate 110 is disposed at the bottom of the pouch battery pack 10. The communication portion between the draft tube 120 and the cooling plate 110 is close to the middle portion of the cooling plate 110. In this way, a sufficient amount of cooling medium enters the guide tube 120 to effectively cool the position of the tab 220 flushed by the heat flow.

The cooling plate 110 is disposed at the bottom of the soft package battery pack 10, and may be implemented by attaching the cooling plate 110 to the bottom surface of the soft package battery pack 10, so that heat of the soft package battery pack 10 can be transferred to the cooling medium in the cooling plate 110. Of course, an intermediate heat conduction member may also be present between the cooling plate 110 and the pouch battery pack 10, as long as heat transfer between the pouch battery pack 10 and the cooling plate 110 is enabled.

The middle portion of the cooling plate 110 may be the central axis portion in the width direction, the central axis portion in the length direction, or the intersection portion of the diagonal lines.

The cooling medium may be a fluid medium such as cooling water capable of absorbing heat.

In the actual use process, the cooling medium in the cooling plate 110 can have a certain pressure, and when a certain part of the flow guide pipe 120 is heated to melt through, the cooling medium can be rapidly sprayed out to achieve the effect of rapidly and effectively cooling the part where the tab 220 with heat flow is located.

In addition, the number of the flow guiding pipes 120 can be flexibly designed or adjusted according to practical use requirements.

Optionally, the number of the flow guide tubes 120 is at least two. The communication portion between each flow guiding tube 120 and the cooling plate 110 is close to the middle portion of the cooling plate 110, so that the flow guiding tubes 120 can be guaranteed to be able to convey a sufficient amount of cooling medium. And, each of the guide pipes 120 extends to be attached to the corresponding tab 220 or is spaced from the corresponding tab 220 at a predetermined distance. In this way, by utilizing the extension arrangement of at least two guide pipes 120, the guide pipes 120 can pass through the positions of the lugs 220 in a targeted manner, so that the positions of the lugs 220 which are possibly punched by heat flow can be covered completely, and the positions of the lugs 220 which are punched by heat flow in all positions can be cooled effectively.

In one embodiment, the flow guide 120 is filled with cooling medium, that is, after the flow guide 120 is communicated with the cooling medium source, the cooling medium in the cooling medium source flows into the flow guide 120 to fill the flow guide 120, when a part of the flow guide 120 is heated and is melted through, the cooling medium can be rapidly sprayed out towards the position of the tab 220 with heat flow, and the position of the tab 220 with heat flow can be rapidly and effectively cooled.

In one embodiment, along the extending direction of the flow guiding tube 120, one end of the flow guiding tube 120 away from the cooling medium source is at least partially in a cavity state, i.e. after the flow guiding tube 120 is communicated with the cooling medium source, the cooling medium in the cooling medium source flows into the flow guiding tube 120 and only fills part of the flow guiding tube 120, and the air at one end of the flow guiding tube 120 away from the cooling medium source is compressed by the cooling medium and still in the cavity state, so that only a small amount of cooling medium in the cooling medium source enters the flow guiding tube 120, the usage amount of the cooling medium is less, and the weight of the whole soft-pack battery pack 10 can be further reduced. When a portion of the flow guide tube 120 is heated and melted, air in the flow guide tube 120 is discharged from the portion where the melting and penetrating occurs, so that the cooling medium can be sprayed from the portion where the melting and penetrating occurs toward the portion where the tab 220 with heat flow is located, and the portion where the tab 220 with heat flow is located can be cooled rapidly and effectively.

As shown in fig. 1, the pouch battery 10 optionally includes a mounting bracket 210. The mounting frames 210 are connected with the circumferential side surfaces of the soft package batteries 200, on which the tabs 220 are arranged, in a bonding manner, so that the mounting frames 210 are arranged close to the tabs 220. As shown in fig. 2, meanwhile, the mounting frame 210 is provided with a connection portion 211 connected with the flow guiding tube 120, so that after the flow guiding tube 120 is connected with the connection portion 211 of the mounting frame 210, the flow guiding tube 120 can be fixedly arranged near the tab 220 of the soft package battery 200, if the portion of the tab 220 is flushed with heat flow, the portion of the flow guiding tube 120, which is close to the tab 220, is heated and then is melted through, so that a cooling medium can be sprayed to the portion of the tab 220, and then the portion of the tab 220 flushed with heat flow can be cooled rapidly and effectively. In addition, the connection portion 211 of the mounting frame 210 is used for fixing the guide tube 120, so that not only can the position of the tab 220 with the heat flow ejected to the guide tube 120 be ensured to cause the penetration of the guide tube 120, but also the cooling medium ejected from the guide tube 120 can face the position of the tab 220 with the heat flow, and the cooling effect is effectively ensured.

The mounting frame 210 may be made of plastic, etc., so as to be designed into various shapes required to meet the requirements of use, for example, may be plate-shaped or sheet-shaped, and will not excessively increase the weight of the soft pack battery pack 10. The number of the mounting frames 210 can be flexibly designed or adjusted according to actual use conditions.

The connection between the connection portion 211 and the flow guiding tube 120 may be realized by a clamping, plugging or sleeving manner. And, the number of the connection parts 211 on the mounting frame 210 can be flexibly adjusted or designed according to actual use requirements.

As shown in fig. 2, in one embodiment, the connection portion 211 is configured as a clamping groove 2111 for being matched with the honeycomb duct 120 in a clamping manner, so that during the assembly process, the assembly connection between the mounting frame 210 and the honeycomb duct 120 can be realized only by clamping the honeycomb duct 120 into the clamping groove 2111, the assembly is simple and convenient, the honeycomb duct 120 is conveniently arranged near the position where the tab 220 is located, the processing is also convenient, the processing difficulty is reduced, and the processing cost is saved.

The "body" and "certain portion" may be a part of the corresponding "member", that is, the "body" and "certain portion" are integrally formed with the other portion of the "member"; or a separate component which is separable from the other part of the component, namely, a certain body and a certain part can be independently manufactured and then combined with the other part of the component into a whole. The expressions of "a body" and "a portion" are merely examples, which are intended to facilitate reading, but not to limit the scope of protection of the present application, so long as the features described above are included and the actions are the same, it should be understood that the utility model is equivalent to the technical solutions described herein.

It should be noted that the components included in the "units", "assemblies", "mechanisms" and "devices" of the present application may be flexibly combined, i.e. may be produced in a modularized manner according to actual needs, so as to facilitate modularized assembly. The above-mentioned components are only one embodiment, and for convenience of reading, not limitation of the scope of protection of the present application, so long as the above components are included and the same function should be understood as the equivalent technical solutions of the present application.

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. The term "and/or" as used in this utility model includes any and all combinations of one or more of the associated listed items.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "mounted," "positioned," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, when one element is considered as "fixed transmission connection" and the other element, the two elements may be fixed in a detachable connection manner, or may be fixed in a non-detachable connection manner, so that power transmission can be achieved, for example, sleeving, clamping, integrally forming and fixing, welding, etc., which may be achieved in the prior art, and no more details are needed. When an element is perpendicular or nearly perpendicular to another element, it is meant that the ideal conditions for both are perpendicular, but certain vertical errors may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

It will be further understood that when interpreting the connection or positional relationship of elements, although not explicitly described, the connection and positional relationship are to be interpreted as including the range of errors that should be within an acceptable range of deviations from the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a cooling structure, is applied to the soft packet of group battery, the soft packet of group battery includes soft packet of battery, the soft packet of battery includes utmost point ear and casing, the utmost point ear is followed stretch out in the casing, the utmost point ear with be equipped with the sealant between the casing, the heat flow that soft packet of battery thermal runaway produced can break through the sealant and dash out, its characterized in that, cooling structure includes the honeycomb duct, the honeycomb duct extend to with the utmost point ear laminating or with predetermineeing the interval with the utmost point ear interval sets up, works as the temperature of honeycomb duct is higher than predetermineeing the temperature value, the honeycomb duct can take place to melt to wear in order to orientation utmost point ear blowout coolant medium.

2. The cooling structure according to claim 1, wherein one end of the draft tube is adapted to communicate with a source of cooling medium to deliver the cooling medium to the draft tube, the source of cooling medium is provided with a first joint, one end of the draft tube is provided with a second joint in communication with the first joint, and the second joint is detachably connected to the first joint.

3. The cooling structure according to claim 2, wherein the cooling medium source is provided as a cooling plate, the cooling plate is provided at the bottom of the soft pack battery pack, and a communication portion of the flow guide pipe and the cooling plate is near a middle portion of the cooling plate.

4. The cooling structure according to claim 3, wherein at least two guide pipes are provided, the communication part between each guide pipe and the cooling plate is close to the middle part of the cooling plate, and each guide pipe extends to be attached to the corresponding tab or is arranged at a preset distance from the corresponding tab.

5. The cooling structure according to any one of claims 1 to 4, wherein the flow guide pipe is provided at one side of the soft pack battery, a distance from a central axis of the flow guide pipe to the soft pack battery is L, and 2D < L < 5T, a mounting height of the central axis of the flow guide pipe is H, and 2/3H < h+d, wherein D is a diameter of the flow guide pipe, and T is a thickness of the soft pack battery; and H is the height of the soft package battery.

6. The cooling structure according to claim 5, wherein an angle α between a line connecting a central axis of the draft tube and a bottom edge of the pouch cell and a side surface corresponding to the pouch cell is 0 ° < α < 30 °.

7. A pouch battery comprising at least two pouch cells electrically connected to each other and a cooling structure according to any one of claims 1 to 6.

8. The pouch battery pack according to claim 7, wherein the pouch battery pack comprises a mounting frame connected to a circumferential side surface of each of the pouch batteries provided with the tab, the mounting frame being provided with a connection portion connected to the duct.

9. The flexible battery pack of claim 8, wherein the connection portion is configured as a snap-fit slot for snap-fit engagement with the manifold.

10. A vehicle comprising a soft pack battery pack as claimed in any one of claims 7 to 9.