CN219755682U

CN219755682U - Cooling pipe connection structure, water cooling assembly and battery module

Info

Publication number: CN219755682U
Application number: CN202321330013.6U
Authority: CN
Inventors: 杜俊丰; 金佺良; 於洪将
Original assignee: Jiangsu Zenergy Battery Technologies Co Ltd
Current assignee: Jiangsu Zenio New Energy Battery Technologies Co Ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-09-26
Anticipated expiration: 2033-05-29

Abstract

The embodiment provides a cooling tube connection structure, water-cooling component and battery module, relates to battery technology field. The cooling pipe connecting structure is applied to the connection of cooling pipes. The cooling tube connection structure comprises a communicating tube and at least two adapters, wherein the communicating tube is of a hollow structure, an opening is formed in the communicating tube, all the adapters are connected to the communicating tube, a runner is formed in each adapter, one end of the runner is communicated with the hollow structure, and the other end of the runner is used for installing the cooling tube. The parallel connection of a plurality of cooling pipes can be realized, so that the length of a single cooling pipe can be shortened, the temperature difference between two ends of the cooling pipe can be reduced, and the heat dissipation of the battery module is more facilitated.

Description

Cooling pipe connection structure, water cooling assembly and battery module

Technical Field

The utility model relates to the technical field of batteries, in particular to a cooling pipe connecting structure, a water cooling assembly and a battery module.

Background

The cooling pipe is an important component in the thermal management system of the battery module, and has great influence on heat dissipation and safety of the battery module. The cooling pipe of the existing water cooling system adopts a one-in one-out structure mode for circulating cooling so as to take away the heat generated by the module battery cells in the charging and discharging processes.

However, the larger battery module has a longer length requirement for the cooling pipe, and the temperature difference between the inlet and the outlet is large, which is not beneficial to heat dissipation of the battery module.

Disclosure of Invention

The utility model aims to provide a cooling pipe connecting structure and a water cooling assembly, which can be used for connecting a plurality of cooling pipes in parallel, so that the length of the cooling pipes can be shortened, the temperature difference between two ends of the cooling pipes is avoided from being large, and the heat dissipation effect of a battery module can be improved.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present embodiment provides a cooling tube connection structure applied to connection between two cooling tubes. The cooling tube connection structure comprises a communicating tube and at least two adapters, wherein the communicating tube is of a hollow structure, an opening is formed in the communicating tube, all the adapters are connected to the communicating tube, the adapters are provided with flow channels, one ends of the flow channels are communicated with the hollow structure, and the other ends of the flow channels are used for installing cooling tubes.

In an alternative embodiment, the number of the adapters includes two, and the two adapters are oppositely arranged at two opposite ends of the communicating pipe.

In an alternative embodiment, the flow channel is provided with a connecting port connected with the communicating pipe, the connecting port is arranged on the side wall of the adapter, a limiting ring table is arranged on the side wall of the connecting port, the communicating pipe is inserted into the connecting port, and the end face of the communicating pipe is abutted to the limiting ring table.

In an alternative embodiment, the flow channel has a mounting opening, into which the end of the cooling tube can be plugged.

In an alternative embodiment, a limit table is arranged on the inner wall of the mounting port and is used for being abutted with the end part of the cooling pipe inserted into the mounting port.

In an alternative embodiment, the adaptor includes first section, second section and third section that connect gradually, the connector set up in the lateral wall of first section, the second section towards the direction of third section increases gradually, the installing port form in the tip of third section, spacing platform set up in the inside wall of third section.

In an alternative embodiment, the communicating tube is a rectangular tube; and/or the number of the groups of groups,

the cooling pipe connection structure further comprises a first water-cooling pipe joint, and the first water-cooling pipe joint is installed at the opening.

In a second aspect, the embodiment further provides a water cooling assembly, where the water cooling assembly includes the cooling pipe connection structure and at least two cooling pipes in any of the optional embodiments, and one ends of the at least two cooling pipes are correspondingly installed to the adapter in a one-to-one correspondence, and are communicated with the flow channel.

In an alternative embodiment, the water cooling assembly further includes at least two end straps mounted to the other end of the cooling tube in a one-to-one correspondence.

In an alternative embodiment, the end fitting includes an end fitting body and a second water-cooled pipe joint disposed on the end fitting.

The third aspect of the present embodiment further provides a battery module, including the water cooling assembly and a plurality of unit batteries according to any one of the above optional embodiments;

the plurality of single batteries are arranged at intervals and in sequence;

the cooling pipes are arranged in the interval between two adjacent rows of single batteries;

one end of the cooling pipe is used for water inflow, and the other end is used for water outflow;

the distance between the single batteries positioned at the two sides of the cooling pipe and the cooling pipe is sequentially reduced in the direction of water inlet of the cooling pipe towards the water outlet direction of the cooling pipe; and/or a heat insulation layer is arranged on one side, close to the water inlet direction of the cooling pipe, of the cooling pipe; and/or the number of the groups of groups,

and a heat insulation layer is arranged on the single battery close to one side of the water inlet direction of the cooling pipe and positioned on two sides of the cooling pipe.

The cooling pipe connecting structure, the water cooling assembly and the battery module have the beneficial effects that:

according to the utility model, the communicating pipe is arranged, the total opening is arranged on the communicating pipe, the plurality of adapter joints are arranged on the communicating pipe, and the flow channels are communicated with the middle through part of the communicating pipe, so that the plurality of cooling pipes can be correspondingly arranged on the adapter joints one by one, the parallel connection of the plurality of cooling pipes is realized, the length of a single cooling pipe can be shortened, the temperature difference between two ends of the cooling pipe can be reduced, and the heat dissipation of the battery module is more facilitated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic diagram of a cooling pipe connection structure according to an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of a cooling tube connection structure according to an embodiment of the present utility model;

fig. 4 is a schematic view of an adaptor structure of a cooling tube connection structure according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of an adapter of a cooling tube connection structure according to an embodiment of the present utility model;

FIG. 6 is a schematic view of an end lap of a water cooling module according to an embodiment of the present utility model.

Icon: 100-cooling tube connection structure; 110-communicating pipe; 111-hollow structure; 113-opening; 130-adapter; 131-flow channels; 133-connecting port; 135-limiting ring table; 137-mounting port; 139-a limiting table; 141-first section; 143-a second section; 145-third section; 147-chamfering; 150-a first water-cooled pipe joint; 300-a water cooling assembly; 310-cooling pipes; 330-end lap; 331-end lap body; 332-a second water-cooled pipe joint.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, 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, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present 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 noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-6, the present embodiment provides a battery module, which further includes a plurality of unit batteries and a water cooling assembly, wherein the plurality of unit batteries are arranged at intervals and in sequence, and the water cooling assembly is used for dissipating heat from the unit batteries.

The water cooling assembly includes a cooling tube connection structure 100 and at least two cooling tubes 310. One end of the cooling tube 310 is installed to the adaptor 130 in a one-to-one correspondence and communicates with the flow channel 131 so that the plurality of cooling tubes 310 are connected in parallel.

Referring to fig. 2 and 3, in the present embodiment, the cooling tube connection structure 100 includes a communicating tube 110 and at least two adapters 130, the communicating tube 110 is a hollow structure 111, and an opening 113 is provided on the communicating tube 110, all the adapters 130 are connected to the communicating tube 110, the adapters 130 are provided with a flow channel 131, one end of the flow channel 131 is communicated with the hollow structure 111, and the other end is used for installing a cooling tube 310.

In this embodiment, by disposing the communicating tube 110 and disposing the total opening 113 on the communicating tube 110, the plurality of adapters 130 are disposed on the communicating tube 110, and the flow channels 131 are communicated with the middle portion of the communicating tube 110, so that the plurality of cooling tubes 310 can be correspondingly mounted on the adapters 130 one by one, so as to realize the parallel connection of the plurality of cooling tubes 310, thereby shortening the length of a single cooling tube 310, reducing the temperature difference between two ends of the cooling tube 310, and being more beneficial to heat dissipation of the battery module.

In the present embodiment, the number of the adapter 130 includes two, and two adapter 130 are oppositely disposed at opposite ends of the communicating tube 110.

The present embodiment sets the number of the adapter pieces 130 to two, and sets the two adapter pieces 130 at both ends of the communication pipe 110 so that the heat exchange medium flowing in through the opening 113 can be relatively uniformly distributed into the two adapter pieces 130.

Referring to fig. 3, 4 and 5, in the present embodiment, the flow channel 131 has a connection port 133 connected to the communicating tube 110, the connection port 133 is disposed on a side wall of the adapter 130, a limit ring platform 135 is disposed on the side wall of the connection port 133, the communicating tube 110 is inserted into the connection port 133, an end surface of the communicating tube 110 abuts against the limit ring platform 135, and the communicating tube 110 and the adapter 130 are welded together by welding, the limit ring platform 135 can position an insertion depth of the communicating tube 110, so as to prevent the communicating tube 110 from being inserted into the flow channel 131, to influence flow of cooling medium, and to prevent welding slag or soldering tin from flowing into the adapter 130 during welding, thereby blocking a channel of the cooling tube 310.

In this embodiment, the communication tube 110 is a rectangular tube, the connection port 133 is also rectangular, and the size matching with the communication tube 110 ensures that the communication tube 110 can be plugged into the connection port 133.

In the present embodiment, the flow channel 131 has a mounting hole 137 for mounting the cooling tube 310, and an end portion of the cooling tube 310 may be inserted into the mounting hole 137. The inner wall of the mounting hole 137 is provided with a stopper 139, and when the cooling pipe 310 is inserted into the mounting hole 137, the end of the cooling pipe 310 abuts against the stopper 139. The mounting hole 137 is arranged to facilitate the plugging and installation of the cooling pipe 310, and the limiting table 139 is arranged to position the plugging length of the cooling pipe 310.

In this embodiment, the cooling tube 310 is connected to the adaptor 130 by gluing after being inserted into the mounting hole 137.

The heat exchange medium entering from the opening 113 is split into the two adapters 130 after passing through the hollow structure 111, flows into the flow channel 131 through the connection port 133, and flows into the cooling tube 310 through the mounting port 137.

Referring to fig. 3, 4 and 5, in the present embodiment, the adaptor 130 includes a first section 141, a second section 143 and a third section 145 connected in sequence, the connection port 133 is disposed on a side wall of the first section 141, the second section 143 is gradually enlarged toward the third section 145, the mounting port 137 is formed at an end of the third section 145, and the limiting stand 139 is disposed on an inner side wall of the third section 145.

In this embodiment, the second section 143 is gradually increased toward the third section 145, so that the flow rate of the heat exchange medium can be increased, and the third section 145 can be matched with the cooling pipe 310.

In this embodiment, the second section 143 has a cross-section that is generally in the shape of an isosceles trapezoid.

In the present embodiment, the end of the side wall of the mounting port 137 is provided with a chamfer 147. The provision of chamfer 147 facilitates the insertion of the end of cooling tube 310 into mounting port 137.

In the present embodiment, the opening 113 is provided at the top wall of the communication pipe 110, and the cooling pipe 310 connection device further includes a first water-cooled pipe joint 150, and the first water-cooled pipe joint 150 is mounted at the opening 113. The first water-cooling pipe joint 150 is provided to facilitate the connection of the water-cooling assembly to the cooling system of the battery module, thereby circulating the same.

In the present embodiment, the first water-cooled pipe joint 150 is connected to the communication pipe 110 by welding. Of course, the first water-cooled joint and the second water-cooled joint may be detachably connected by threads or the like.

Referring to fig. 1 and 6, in the present embodiment, the water cooling assembly 300 further includes two end lap pieces 330, and the end lap pieces 330 are mounted on the other ends of the cooling pipes 310 in a one-to-one correspondence.

In this embodiment, the end lap 330 includes an end lap body 331 and a second water-cooled pipe joint 332 disposed on the end lap 330.

In the present embodiment, the shape of the end lap member body 331 is substantially the same as the shape of the adapter 130, and the cooling medium circulating in the cooling pipe 310 can be recovered to the thermal management system of the battery module through the liquid return pipe for cooling.

The present embodiment can be conveniently realized by connecting the other end of the cooling pipe 310 with the thermal management system of the battery module by providing the end lap joint 330, and the circulation of the heat exchange medium.

Of course, in other embodiments of the present utility model, one cooling tube connection 100 may be used instead of two end straps 330.

In this embodiment, the cooling tube 310 is a rectangular serpentine tube, which can better fit with the unit cell, so that heat exchange can be improved.

The cooling pipes can be caused along with the flow of the heat exchange medium in the heat dissipation process, so that the heat of the heat exchange medium rises, the stability uniformity of the battery module is affected, and the heat is accumulated in a partial area of the battery module.

In order to ensure uniformity of the temperature of the battery module, in the present embodiment, in the water inlet direction of the cooling pipe toward the water outlet direction of the cooling pipe, the distances between the unit cells located at both sides of the cooling pipe and the cooling pipe are sequentially reduced.

In general, unit batteries in a battery module are mounted on a module support, and the distance between two adjacent unit batteries can be determined by the distance between mounting holes on the module.

In other embodiments of the present utility model, the heat insulation layer may be further disposed on the cooling pipe at a side close to the water inlet direction of the cooling pipe or on the unit cells located at both sides of the cooling pipe at a side close to the water inlet direction of the cooling pipe. Thus, the uniformity of the temperature of the battery module can be ensured.

The heat insulating layer may be an applied heat insulating material, a coated heat insulating paint, or the like.

To sum up, the cooling pipe connection structure 100 and the water cooling assembly provided in the present embodiment have the following working principles and beneficial effects:

The above is only a preferred embodiment 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

1. The utility model provides a cooling tube connection structure, is applied to the connection between two cooling tubes, a serial communication port, including communicating pipe (110) and two at least adapter (130), communicating pipe (110) are hollow structure (111), just be provided with opening (113) on communicating pipe (110), all adapter (130) all connect in communicating pipe (110), adapter (130) are provided with runner (131), the one end of runner (131) with hollow structure (111) intercommunication, the other end is used for the installation cooling tube (310).

2. The cooling tube connection structure according to claim 1, wherein the number of the adapters (130) includes two, and the two adapters (130) are oppositely disposed at opposite ends of the communication tube (110).

3. The cooling tube connection structure according to claim 2, wherein the flow passage (131) has a connection port (133) connected to the communication tube (110), the connection port (133) is provided on a side wall of the adapter (130), a retainer ring table (135) is provided on the side wall of the connection port (133), the communication tube (110) is inserted into the connection port (133), and an end surface of the communication tube (110) abuts against the retainer ring table (135).

4. A cooling tube connection according to claim 3, characterized in that the flow channel (131) has a mounting opening (137), the end of the cooling tube (310) being insertable into the mounting opening (137).

5. The cooling tube connecting structure according to claim 4, wherein a limit table (139) is provided on an inner wall of the mounting port (137), and the limit table (139) is configured to abut against an end portion of the cooling tube inserted into the mounting port (137).

6. The cooling tube connection structure according to claim 5, wherein the adapter (130) includes a first section (141), a second section (143) and a third section (145) connected in sequence, the connection port (133) is disposed on a side wall of the first section (141), the second section (143) gradually increases toward the third section (145), the mounting port (137) is formed at an end portion of the third section (145), and the stopper (139) is disposed on an inner side wall of the third section (145).

7. The cooling pipe connection structure according to any one of claims 1 to 6, wherein the communicating pipe (110) is a rectangular pipe; and/or the number of the groups of groups,

the cooling pipe connection structure further comprises a first water-cooling pipe joint (150), and the first water-cooling pipe joint (150) is installed in the opening (113).

8. A water cooling assembly, characterized by comprising the cooling pipe connection structure of any one of claims 1 to 7 and at least two cooling pipes (310), wherein one ends of at least two cooling pipes (310) are mounted to the adaptor (130) in one-to-one correspondence and are communicated with the flow channel (131).

9. The water cooling assembly of claim 8 further comprising at least two end straps (330), the end straps (330) being mounted one-to-one to the other end of the cooling tube (310).

10. The water cooling assembly of claim 9 wherein the end lap (330) includes an end lap body (331) and a second water cooled pipe joint (332) disposed on the end lap (330).

11. A battery module comprising the water cooling assembly of any one of claims 8-10 and a plurality of cells;

the plurality of single batteries are arranged at intervals and in sequence;

the distance between the single batteries positioned at the two sides of the cooling pipe and the cooling pipe is sequentially reduced in the direction of water inlet of the cooling pipe towards the water outlet direction of the cooling pipe; and/or the number of the groups of groups,

a heat insulation layer is arranged on one side, close to the water inlet direction of the cooling pipe, of the cooling pipe; and/or the number of the groups of groups,

and heat insulation layers are arranged on the single batteries positioned at two sides of the cooling pipe and close to one side of the water inlet direction of the cooling pipe.