CN220604767U - Liquid cooling subassembly and battery - Google Patents

Abstract

The utility model discloses a liquid cooling assembly and a battery, and relates to the technical field of batteries. The liquid cooling assembly comprises connecting pipelines and liquid cooling plates, wherein the liquid cooling plates are sequentially arranged in parallel, the liquid cooling plates are connected between the two connecting pipelines in parallel, one of the two connecting pipelines is used for inputting cooling liquid to the liquid cooling plates, the rest of the two connecting pipelines is used for discharging the cooling liquid by the liquid cooling plates, a telescopic pipe section is arranged on any connecting pipeline at a part between any two adjacent liquid cooling plates, and any two adjacent liquid cooling plates are used for respectively radiating two large faces of the same battery. The liquid cooling assembly provided by the utility model has better heat dissipation effect and higher safety.

Description

Liquid cooling subassembly and battery

Technical Field

The utility model relates to the technical field of batteries, in particular to a liquid cooling assembly and a battery.

Background

The battery is inside to have arranged a plurality of battery monomers in proper order, in order to carry out effective cooling to the battery monomer, partial battery on the market can set up the liquid cooling board between a plurality of battery monomer two by two, is arranging pipeline and communicating a plurality of liquid cooling boards, through a plurality of liquid cooling boards to the big heat transfer of a plurality of battery monomer both sides.

However, in practical application, after the battery monomer is heated and expanded, a bulge is formed on a large surface, so that a pipe section between two adjacent liquid cooling plates is torn off, and the cooling liquid in a pipeline leaks, thereby causing a safety accident.

Disclosure of Invention

The utility model aims to provide a liquid cooling assembly which can effectively cool the large surface of a battery cell and can avoid pipeline breakage under the condition of large surface bulge of the battery cell.

Another object of the present utility model is to provide a battery with better heat dissipation effect and higher safety.

The embodiment of the utility model provides a technical scheme that:

the liquid cooling assembly comprises connecting pipelines and liquid cooling plates, wherein a plurality of liquid cooling plates are sequentially arranged in parallel, the liquid cooling plates are connected between two connecting pipelines in parallel, one of the two connecting pipelines is used for inputting cooling liquid to the liquid cooling plates, and the rest of the two connecting pipelines are used for discharging the cooling liquid from the liquid cooling plates; the part of any one connecting pipeline between any adjacent two liquid cooling plates is provided with a telescopic pipe section, and the any adjacent two liquid cooling plates are used for respectively radiating two large surfaces of the same battery cell.

Further, the connecting pipeline comprises a current collector and a middle tube group, a plurality of current collectors are sequentially arranged at intervals, any two adjacent current collectors are connected through the middle tube group, the telescopic tube section is arranged on the middle tube group, and the current collectors are connected with one end of the liquid cooling plate.

Further, the middle tube group comprises a first connecting tube and two second connecting tubes, the two second connecting tubes are respectively arranged on the two adjacent current collectors, two ends of the first connecting tube are respectively connected with the two second connecting tubes, and at least one of the first connecting tube and the two second connecting tubes is provided with the telescopic tube section.

Further, first connectors are arranged at two ends of the first connecting pipe, second connectors are arranged at one ends, far away from the adjacent current collector, of the second connecting pipe, the two first connectors of the first connecting pipe are in corresponding threaded fit with the second connectors of the two second connecting pipes, and the threads of the second connectors of the two second connecting pipes are opposite in screwing direction.

Further, the portion of the first connecting pipe between the two first joints is provided with the telescoping pipe section.

Further, the portion of the second connection tube between the second joint and the adjacent current collector is provided with the telescoping tube section.

Further, the first connecting pipe is further provided with two first sealing pipe sections, the second connecting pipe is further provided with a second sealing pipe section, a sealing ring is sleeved on the outer side wall of the second sealing pipe section, and the second sealing pipe section is used for driving the sealing ring to extend into the first sealing pipe section in the process that the second connector is screwed into the first connector.

Further, two first seal pipe sections are arranged between the two first joints, the two first seal pipe sections are communicated with the two first joints one by one, the second seal pipe sections are arranged at one ends, far away from the adjacent current collectors, of the second joints, and the second seal pipe sections are communicated with the second joints.

Further, the telescopic pipe section is a corrugated pipe section.

The embodiment of the utility model also provides a battery, which comprises a plurality of battery monomers and the liquid cooling assembly, wherein the liquid cooling assembly comprises connecting pipelines and liquid cooling plates, the liquid cooling plates are sequentially arranged in parallel, the liquid cooling plates are connected between the two connecting pipelines in parallel, one of the two connecting pipelines is used for inputting cooling liquid to the liquid cooling plates, and the rest of the two connecting pipelines is used for discharging the cooling liquid from the liquid cooling plates; the part of any one connecting pipeline between any adjacent two liquid cooling plates is provided with a telescopic pipe section, and the any adjacent two liquid cooling plates are used for respectively radiating two large surfaces of the same battery cell.

Compared with the prior art, the liquid cooling assembly provided by the utility model has the advantages that any two adjacent liquid cooling plates can respectively dissipate heat on the large surfaces of two sides of the same battery monomer, and under the condition that the space between the two liquid cooling plates is increased due to the large surface bulge of any battery monomer, the telescopic pipe section between the two liquid cooling plates on two sides of the battery monomer is elongated, so that the pipe section is prevented from being broken. Therefore, the liquid cooling assembly provided by the utility model has the beneficial effects that: the heat dissipation effect is better, the security is higher.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the drawings that are required to be used in the embodiments will be briefly described. It is appreciated that the following drawings depict only certain embodiments of the utility model and are therefore not to be considered limiting of its scope. Other relevant drawings may be made by those of ordinary skill in the art without undue burden from these drawings.

FIG. 1 is a schematic diagram of a portion of a liquid cooling assembly according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of the connecting pipeline in FIG. 1;

FIG. 3 is an exploded view of the middle tube set of FIG. 2;

FIG. 4 is a schematic view of the first connecting tube in FIG. 3;

fig. 5 is a schematic structural view of the second connecting tube in fig. 3.

Icon: 100-liquid cooling assembly; 110-connecting pipelines; 111-current collector; 112-an intermediate tube set; 113-a first connection tube; 1131-a first linker; 1132-a first sealed tube segment; 114-a second connecting tube; 1141-a second linker; 1142-a second sealed tube segment; 1143-a seal ring; 120-liquid cooling plate; 130-telescoping tube sections.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships conventionally put in place when the inventive product is used, or the directions or positional relationships conventionally understood by those skilled in the art are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; 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 can be understood by those of ordinary skill in the art according to the specific circumstances.

The following describes specific embodiments of the present utility model in detail with reference to the drawings.

Examples

Referring to fig. 1 and fig. 2 in combination, fig. 1 is a schematic diagram of a portion of a liquid cooling assembly 100 according to the present embodiment, and fig. 2 is a schematic diagram of a portion of a connecting pipeline 110 in the liquid cooling assembly 100.

The liquid cooling assembly 100 provided in this embodiment is applied to a battery, and is used for dissipating heat from a large surface of a battery cell inside the battery. Specifically, the liquid cooling assembly 100 includes a connection pipeline 110 and a liquid cooling plate 120, the plurality of liquid cooling plates 120 are sequentially arranged in parallel, and the plurality of liquid cooling plates 120 are connected in parallel between the two connection pipelines 110, one of the two connection pipelines 110 is used for inputting cooling liquid to the plurality of liquid cooling plates 120, and the remaining one of the two connection pipelines 110 is used for discharging the cooling liquid from the plurality of liquid cooling plates 120.

Specifically, one end of the plurality of liquid cooling plates 120 is connected in series to one connecting pipeline 110, the other end of the plurality of liquid cooling plates 120 is connected to another connecting pipeline 110, a telescopic pipe section 130 is arranged on a portion, located between any two adjacent liquid cooling plates 120, of any one connecting pipeline 110, and any two adjacent liquid cooling plates 120 are used for respectively radiating two large faces of the same battery cell.

It is understood that one of the two connecting lines 110 serves as an input line for the coolant, and the remaining connecting line 110 serves as an output line for the coolant. In practical application, the external cooling liquid sequentially reaches the plurality of liquid cooling plates 120 through one of the connecting pipelines 110, and the cooling liquid entering the liquid cooling plates 120 flows along the flow channel arranged in the liquid cooling plates 120 to the other connecting pipeline 110 positioned at the other end of the liquid cooling plates 120, finally enters the other connecting pipeline 110 and flows back to the outside along the connecting pipeline 110 to form a circulation. In the process of flowing the cooling liquid through the liquid cooling plate 120, the cooling plate 120 exchanges heat with the large surface of the battery cell to realize large-surface heat dissipation of the battery cell.

In practical application, when a battery cell is disposed between two adjacent liquid cooling plates 120, the two adjacent liquid cooling plates 120 respectively abut against two large sides of the battery cell. In other words, the battery cell is sandwiched by two adjacent liquid cooling plates 120 in the thickness direction thereof.

When the battery monomer is heated and expanded to cause the bulge of any side surface of the battery monomer, the corresponding two liquid cooling plates 120 are pushed to deviate from the motion, and as the telescopic pipe section 130 is arranged on the connecting pipeline 110 and positioned between the adjacent liquid cooling plates 120, the telescopic pipe section 130 is adaptively stretched under the action of the liquid cooling plates 120, so that the connecting pipeline 110 is prevented from being torn.

In this embodiment, the connection pipe 110 includes a first connection pipe 113 and two second connection pipes 114, the second connection pipes 114 are respectively connected to two ends of the first connection pipe 113, between adjacent current collectors 111, and the second connection pipes 114 are connected with the adjacent current collectors 111.

It will be appreciated that for any one of the current collectors 111 in the middle portion of the queuing, both sides thereof are connected to the current collectors 111 adjacent to both sides thereof through the connection pipe 110. In practical application, after the cooling liquid enters the current collector 111 through the connecting pipeline 110, one part of the cooling liquid flows into the liquid cooling plate 120 correspondingly connected with the current collector 111, and the other part of the cooling liquid flows into the connecting pipeline 110 connected with the other side of the current collector 111 and continues to flow to the next current collector 111.

In another embodiment, the current collector 111 and the liquid cooling plate 120 may be integrally formed. The liquid cooling module 100 provided in this embodiment is composed of a plurality of liquid cooling plates 120 and a plurality of connecting pipes 110 sequentially connected to the plurality of liquid cooling plates 120, and the current collector 111 is integrated on the liquid cooling plates 120.

Referring to fig. 3 in combination, fig. 3 is an exploded view of the connecting pipe 110.

At least one of the first connection pipe 113 and the two second connection pipes 114 is provided with a telescoping pipe section 130.

In fact, the first connecting pipe 113 and the two second connecting pipes 114 in the present embodiment are each provided with a bellows segment 130, and the bellows segment 130 is a bellows segment. In other embodiments, the telescoping tube segment 130 may be disposed only on the first connection tube 113 or the telescoping tube segment 130 may be disposed only on the second connection tube 114, depending on practical application conditions. Alternatively, the connecting line 110 may be a unitary tube segment that is collapsible.

In this embodiment, the first connectors 1131 are disposed at two ends of the first connecting pipe 113, the second connectors 1141 are disposed at one end of the second connecting pipe 114 away from the adjacent current collector 111, the two first connectors 1131 of the first connecting pipe 113 are correspondingly screwed with the second connectors 1141 of the two second connecting pipes 114, and the threads of the second connectors 1141 of the two second connecting pipes 114 are opposite in screwing direction.

In practice, the first joint 1131 is provided with internal threads and the second joint 1141 is provided with external threads, the second joint 1141 being relatively threaded into the first joint 1131 during connection of the first joint 1131 to the second joint 1141.

In order to facilitate connection of the two second connection pipes 114 in the same middle pipe group 112 with the first connection pipe 113, and avoid loosening of the preceding second connection pipe 114 from the first connection pipe 113 when the following second connection pipe 114 is connected, in this embodiment, the screw threads of the second connectors 1141 of the two second connection pipes 114 are opposite, and likewise, the screw threads of the first connectors 1131 provided on the first connection pipe 113 are opposite.

The telescoping tube segment 130 disposed on the first connection tube 113 is disposed between the two first connectors 1131 and the telescoping tube segment 130 disposed on the second connection tube 114 is disposed between the second connector 1141 on the second connection tube 114 and the adjacent header 111.

Referring to fig. 4 and fig. 5 in combination, fig. 4 is a schematic structural diagram of the first connecting pipe 113, and fig. 5 is a schematic structural diagram of the second connecting pipe 114.

In order to ensure the tightness of the connection between the first connection pipe 113 and the second connection pipe 114, in this embodiment, the first connection pipe 113 is further provided with two first sealing pipe sections 1132, the second connection pipe 114 is further provided with a second sealing pipe section 1142, a sealing ring 1143 is sleeved on the outer side wall of the second sealing pipe section 1142, and the second sealing pipe section 1142 is used for driving the sealing ring 1143 to extend into the first sealing pipe section 1132 in the process of screwing the second joint 1141 into the first joint 1131.

It can be appreciated that in the process of respectively establishing connection between the two second connection pipes 114 and the two ends of the first connection pipe 113, the second seal pipe sections 1142 on the two second connection pipes 114 respectively extend into the two first seal pipe sections 1132 of the first connection pipe 113.

For any one of the second connection pipes 114, after the second seal pipe section 1142 extends into the first seal pipe section 1132, the seal ring 1143 sleeved on the second seal pipe section 1142 is deformed by extrusion of the second seal pipe section 1142 and the first seal pipe section 1132, so that a gap between the second seal pipe section 1142 and the first seal pipe section 1132 is filled to form a good seal.

In this embodiment, two first seal pipe sections 1132 are disposed between two first joints 1131, and the two first seal pipe sections 1132 are respectively located at two ends of the expansion pipe section 130 on the first connecting pipe 113, where the two first seal pipe sections 1132 are in one-to-one communication with the two first joints 1131. It will be appreciated that in practice, the ends of the telescoping tube segment 130 may be attached to the two first seal tube segments 1132 by bonding, welding, or the like. The second seal pipe section 1142 is disposed at an end of the second joint 1141 remote from the adjacent current collector 111, and the second seal pipe section 1142 communicates with the second joint 1141.

In other words, for any one of the second connection pipes 114, the expansion pipe section 130, the second joint 1141, and the second seal pipe section 1142 are arranged in this order from the end near the adjacent current collector 111 to the end far from the current collector 111.

In practical application, when any one of the second connection pipes 114 is connected to the first connection pipe 113, the second sealing pipe section 1142 of the second connection pipe 114 first extends into the first joint 1131 provided at one end of the first connection pipe 113, and extends into the first sealing pipe section 1132 through the first joint 1131.

In the process, the second connector 1141 is extended into the first connector 1131 and is threadedly engaged with the first connector 1131, and then the second connector 1141 is relatively screwed into the first connector 1131. The connection of the second connection tube 114 to the first connection tube 113 is accomplished by designing the lengths of the first joint 1131, the first seal tube segment 1132, the second joint 1141, and the second seal tube segment 1142 such that when the second joint 1141 is just screwed into place with the first joint 1131, the second seal tube segment 1142 is just fully inserted into the first seal tube segment 1132.

In summary, in practical application, the liquid cooling assembly 100 provided in this embodiment can realize heat dissipation and cooling of two large surfaces of the same battery cell by any two adjacent liquid cooling plates 120, and the middle tube group 112 connected with the adjacent liquid cooling plates 120 is telescopic, so that the distance between the two liquid cooling plates 120 caused by large surface bulge of the battery cell can be adapted to be increased, and the middle tube group 112 is prevented from being broken, thereby avoiding safety accidents of the applied battery.

Therefore, the liquid cooling assembly 100 provided in this embodiment has the characteristics of better heat dissipation effect and higher safety.

In addition, the present embodiment further provides a battery, which includes a plurality of battery units and the liquid cooling assembly 100, wherein the plurality of battery units are disposed in gaps formed by the plurality of liquid cooling plates 120 in pairs, and two large surfaces of any battery unit are respectively abutted against the two corresponding liquid cooling plates 120.

It can be seen that the combination of the plurality of liquid cooling plates 120 adjacent to each other achieves the large-surface heat dissipation on both sides of the plurality of battery cells, and achieves the efficient heat dissipation of the battery cells. And, the middle tube group 112 of two adjacent liquid cooling plates 120 is scalable, can adapt to the increase of two liquid cooling plates 120 interval that the big face of battery cell bulge caused, avoids the fracture to leak the coolant liquid to avoid taking place the incident.

Therefore, the battery provided by the embodiment also has the characteristics of better heat dissipation effect and higher safety.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (9)

1. The liquid cooling assembly is characterized by comprising connecting pipelines (110) and liquid cooling plates (120), wherein a plurality of liquid cooling plates (120) are sequentially arranged in parallel, the liquid cooling plates (120) are connected between the two connecting pipelines (110) in parallel, one of the two connecting pipelines (110) is used for inputting cooling liquid to the liquid cooling plates (120), and the rest of the two connecting pipelines (110) is used for discharging the cooling liquid from the liquid cooling plates (120);

a telescopic pipe section (130) is arranged at a part, located between any two adjacent liquid cooling plates (120), of any one connecting pipeline (110), and the any two adjacent liquid cooling plates (120) are used for respectively radiating two large surfaces of the same battery cell;

the connecting pipeline (110) comprises a current collector (111) and an intermediate pipe group (112), a plurality of current collectors (111) are sequentially arranged at intervals, any two adjacent current collectors (111) are connected through the intermediate pipe group (112), a telescopic pipe section (130) is arranged on the intermediate pipe group (112), and the current collectors (111) are connected with one end of the liquid cooling plate (120).

2. The liquid cooling assembly according to claim 1, wherein the intermediate tube group (112) includes a first connecting tube (113) and two second connecting tubes (114), the two second connecting tubes (114) are respectively disposed on the adjacent two current collectors (111), both ends of the first connecting tube (113) are respectively connected with the two second connecting tubes (114), and at least one of the first connecting tube (113) and the two second connecting tubes (114) is provided with the telescoping tube section (130).

3. The liquid cooling assembly according to claim 2, wherein a first joint (1131) is disposed at two ends of the first connecting pipe (113), a second joint (1141) is disposed at an end of the second connecting pipe (114) away from the adjacent current collector (111), the two first joints (1131) of the first connecting pipe (113) are correspondingly in threaded fit with the second joints (1141) of the two second connecting pipes (114), and the threads of the second joints (1141) of the two second connecting pipes (114) are opposite in rotation direction.

4. A liquid cooling assembly according to claim 3, characterized in that the portion of the first connection pipe (113) between the two first joints (1131) is provided with the telescoping pipe section (130).

5. A liquid cooling assembly according to claim 3, wherein the portion of the second connection tube (114) between the second connector (1141) and the adjacent header (111) is provided with the telescoping tube section (130).

6. A liquid cooling assembly according to claim 3, wherein the first connecting pipe (113) is further provided with two first sealing pipe sections (1132), the second connecting pipe (114) is further provided with a second sealing pipe section (1142), a sealing ring (1143) is sleeved on the outer side wall of the second sealing pipe section (1142), and the second sealing pipe section (1142) is used for driving the sealing ring (1143) to extend into the first sealing pipe section (1132) in the process of screwing the second joint (1141) into the first joint (1131).

7. The liquid cooling assembly according to claim 6, wherein two first seal pipe sections (1132) are disposed between two first joints (1131), and two first seal pipe sections (1132) are in one-to-one communication with two first joints (1131), the second seal pipe sections (1142) are disposed at ends of the second joints (1141) away from the adjacent current collector (111), and the second seal pipe sections (1142) are in communication with the second joints (1141).

8. The liquid cooling assembly of claim 1, wherein the telescoping tube section (130) is a bellows section.

9. A battery, comprising a plurality of battery cells and the liquid cooling assembly (100) according to any one of claims 1-8, wherein the battery cells are disposed in a gap formed by two liquid cooling plates (120), and two large surfaces of any battery cell are respectively abutted against the two corresponding liquid cooling plates (120).