CN220474739U

CN220474739U - Pipeline assembly, heat dissipation assembly and battery device

Info

Publication number: CN220474739U
Application number: CN202321615155.7U
Authority: CN
Inventors: 吴沛; 季娟; 颜延露
Original assignee: China Innovation Aviation Technology Group Co ltd
Current assignee: China Innovation Aviation Technology Group Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2024-02-09
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a pipeline assembly, a heat dissipation assembly and a battery device, wherein the pipeline assembly comprises: the pipeline extends along a first direction, a first valve body and a plurality of second valve bodies are arranged on the pipeline, the distance between the first valve body and the middle of the pipeline is a, and half of the distance between the second valve bodies close to two ends of the pipeline is b, wherein a/b is more than or equal to 0 and less than or equal to 1/4. The utility model also discloses a heat dissipation assembly: a conduit assembly as described above; and each cold plate assembly is communicated with each second valve body respectively. The utility model also discloses a battery device, which adopts the heat dissipation assembly. The utility model satisfies the relation between the first valve body and the pipeline: the distance from the first valve body to the middle of the pipeline is a, and half of the distance between the second valve bodies close to the two ends of the pipeline is b, wherein a/b is more than or equal to 0 and less than or equal to 1/4. When the arrangement mode is adopted, liquid is injected into the first valve body, and the flow of the liquid flowing from the first valve body to the second valve body is distributed uniformly.

Description

Pipeline assembly, heat dissipation assembly and battery device

Technical Field

The utility model relates to the technical field of power batteries, in particular to a pipeline assembly, a heat dissipation assembly and a battery device.

Background

Currently, with the promotion and development of a power battery system, CIR, CTP, CTC and other technologies are applied to the battery system successively, and the safety performance of the battery system is becoming more and more interesting.

The battery device mainly comprises a battery module and a heat dissipation assembly, wherein a plurality of batteries are connected in series or in parallel to form the battery module for supplying power in the battery module, and the power supply voltage and current of the plurality of batteries are increased to generate more heat.

At present, a plurality of harmonica pipes are arranged on a heat radiating component in the prior art, the higher the flow of cooling liquid in the harmonica pipes is, the better the cooling effect is, but in the prior art, the risks of uneven flow distribution exist in a heat radiating component structure with a plurality of harmonica pipes connected in parallel, and the more branches are, the higher the risks are.

Disclosure of Invention

In order to overcome the defects in the prior art, one of the purposes of the utility model is to provide a pipeline assembly, wherein the distance between a first valve body and the middle of a pipeline is a, and the distance between a second valve body which is close to two ends of the pipeline is half of a distance b, so that the a/b is more than or equal to 0 and less than or equal to 1/4, and the flow rate of liquid flowing from the first valve body to the second valve body is kept uniform.

The second object of the present utility model is to provide a heat dissipating assembly, wherein the distance between the first valve body and the middle of the pipeline is a, and the distance between the second valve body near two ends of the pipeline is b, so that a/b is 0-1/4, and the flow of the cooling liquid in the harmonica pipe is kept uniform.

The third object of the present utility model is to provide a battery device, which uses the heat dissipation assembly to keep the temperature of each battery in the battery module to be synchronously and uniformly reduced.

One of the purposes of the utility model is realized by adopting the following technical scheme:

a piping assembly comprising:

the pipeline extends along a first direction, a first valve body and a plurality of second valve bodies are arranged on the pipeline, the distance between the two second valve bodies close to two ends of the pipeline is a first section, the distance from the first valve body to the center of the first section is a, and the length of the first section is half of b, and a/b is more than or equal to 0 and less than or equal to 1/4.

Compared with the prior art, the utility model has the beneficial effects that:

the pipeline subassembly of this application, it satisfies through the relation with between first valve body and the pipeline: the distance from the first valve body to the middle of the pipeline is a, and half of the distance between the second valve bodies close to the two ends of the pipeline is b, wherein a/b is more than or equal to 0 and less than or equal to 1/4. When the arrangement mode is adopted, liquid is injected into the first valve body, and the flow of the liquid flowing from the first valve body to the second valve body is distributed uniformly.

The second purpose of the utility model is realized by adopting the following technical scheme:

a heat dissipating assembly, comprising:

a conduit assembly as described above;

and each cold plate assembly is communicated with each second valve body respectively.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model provides a radiator unit, the flow evenly distributed of cooling liquid in harmonica intraductal can be made to the setting mode of first valve body and pipeline to realize even flow, promote battery module temperature homogeneity.

The third purpose of the utility model is realized by adopting the following technical scheme:

a battery device, comprising:

a case;

the battery module is arranged in the box body;

the heat dissipation assembly is used for reducing the temperature of the battery module.

Compared with the prior art, the utility model has the beneficial effects that:

the battery device of this application satisfies through the relation with between first valve body and the pipeline: the distance from the first valve body to the middle of the pipeline is a, and half of the distance between the second valve bodies close to the two ends of the pipeline is b, wherein a/b is more than or equal to 0 and less than or equal to 1/4. When adopting this kind of setting scheme, pour into the cooling liquid into in the valve body, the setting scheme between valve body and the pipeline can make the flow evenly distributed of cooling liquid in the harmonica pipe to realize even flow, thereby make the temperature of every battery in the battery module keep synchronous even decline, promote battery module temperature homogeneity.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a piping component according to the present utility model.

In the figure: 1. a pipeline assembly; 11. a first valve body; 12. a pipeline; 13. a second valve body; 2. a cold plate assembly; 21. a liquid collecting pipe; 22. a harmonica tube.

Detailed Description

The utility model will be further described with reference to the accompanying drawings and detailed description below:

in the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

A piping assembly 1 as shown in fig. 1 and 2, comprising: the pipeline 12 extends along a first direction, the pipeline 12 is provided with a first valve body 11 and a plurality of second valve bodies 13, the distance between the two second valve bodies 13 close to two ends of the pipeline 12 is a first section, the distance from the first valve body 11 to the center of the first section is a, and half of the length of the first section is b, and a/b is more than or equal to 0 and less than or equal to 1/4.

In addition to the above configuration, when the cooling liquid is injected into the first valve body 11, the cooling liquid flows through the first valve body 11 to the pipe 12, and flows through the second valve body 13 to the cold plate assembly 2 through the pipe 12. In order to uniformly distribute the flow of each branch, the distance between the two second valve bodies 13 near the two ends of the pipeline 12 is a first section, the distance from the first valve body 11 to the center of the first section is a, and the half of the length of the first section is b, and 0 is less than or equal to a/b is less than or equal to 1/4.

In the prior art, a plurality of batteries are connected in series or in parallel to form a battery module for power supply, and the power supply voltage and current of the plurality of batteries are increased to generate relatively more heat, if the heat is not dissipated by an effective heat dissipation component, the power supply efficiency of the battery module is reduced, and the charge and discharge cycle life of the battery module is shortened sharply. The heat dissipation assembly is provided with a plurality of harmonica pipes 22, and the higher the flow of the cooling liquid in the harmonica pipes 22 is, the better the cooling effect is, but in the prior art, the heat dissipation assembly structure with a plurality of harmonica pipes 22 connected in parallel has the risks of uneven flow distribution, and the more branches are, the higher the risks are.

In this embodiment, in order to achieve that the flow rates of the branches tend to be uniform, the uniformity of heat dissipation of the heat dissipation assembly is improved, so that the temperature of each battery in the battery module is kept to be synchronously and uniformly reduced, the uniformity of the temperature of the battery module is kept, the distance between two second valve bodies 13 close to two ends of the pipeline 12 is a first section, the distance from the first valve body 11 to the center of the first section is a, half of the length of the first section is b, and 0 is less than or equal to a/b is less than or equal to 1/4. And the second valve bodies 13 are respectively communicated with the cold plate assemblies 2 in the heat dissipation assemblies to form a plurality of branches, and the more the second valve bodies 13 are, the more the branches are.

It should be noted that the second valve bodies 13 near the two ends of the pipeline 12 are not necessarily located at the ends of the pipeline 12, i.e. the length of the first section is not necessarily equal to the length of the pipeline 12, and sometimes the pipeline 12 may protrude outwards in the first direction by a small section due to processing and setting problems, where b is half of the distance between the second valve bodies 13 closest to the two ends of the pipeline 12, and a is the distance from the first valve body 11 to the center of the first section.

Test example:

taking the whole heat dissipation assembly as an example, the three cold plate assemblies 2 and the two pipeline assemblies 1 are taken as the heat dissipation assembly, the three cold plate assemblies 2 are connected in parallel through the two pipeline assemblies 1, the three cold plate assemblies 2 are arranged at intervals in parallel, the two pipeline assemblies 1 are respectively arranged at two ends of the cold plate assemblies 2, and the second valve body 13 is communicated with the cold plate assemblies 2. And the pipe assemblies 1 at both ends of the cold plate assembly 2 are corresponding to each other. A first valve body 11 is arranged on a pipeline 12, and three second valve bodies 13 are arranged, wherein each second valve body 13 forms a branch.

The three branches are named as a first branch, a second branch and a third branch from left to right respectively, the flow in the harmonica pipe 22 in the three branches is tested, the actually measured flow is compared with the theoretical flow, an offset value is obtained, and a conclusion of whether the flow of the three branches is uniform is obtained according to the offset value: when the flow deviation is < 4%, it falls within an acceptable deviation range. The theoretical flow rate of the three branches is 4.67L/min, and the following examples are given by way of illustration:

in example 1, if a/b.apprxeq.0,

at this time, the first valve body 11 is arranged near the center of the first section, and by measuring the flow in the three branches, it can be obtained that the flow of the first branch is 4.59L/min and the deviation from the theoretical flow is-1.71%; the flow of the second branch is 4.82L/min, and the deviation from the theoretical flow is 3.21%; the flow rate of the third branch is 4.59L/min, and the deviation from the theoretical flow rate is-1.71%, wherein the maximum deviation is 3.21%.

In example 2, if a/b=1/4,

by measuring the internal flow of the three branches, the flow of the first branch is 4.65L/min, and the deviation from the theoretical flow is-0.39%; the flow of the second branch is 4.51L/min, and the deviation from the theoretical flow is-3.52%; the flow of the third branch is 4.85L/min, and the deviation from the theoretical flow is 3.91%, wherein the maximum deviation is 3.91%.

Comparative example 1, if a/b=1/2,

by measuring the internal flow of the three branches, the flow of the first branch is 4.81L/min, and the deviation from the theoretical flow is 2.92%; the flow of the second branch is 4.28L/min, and the deviation from the theoretical flow is-8.44%; the flow of the third branch is 4.93L/min, and the deviation from the theoretical flow is 5.52%, wherein the maximum deviation is 8.40%.

Comparative example 2, if a/b > 1,

at this time, the first valve body 11 is arranged close to the third branch, and by measuring the internal flow of the three branches, it can be obtained that the flow of the first branch is 4.19L/min and the deviation from the theoretical flow is-10.36%; the flow of the second branch is 4.24L/min, and the deviation from the theoretical flow is-9.23%; the flow rate of the third branch is 5.58L/min, and the deviation from the theoretical flow rate is 19.59%, wherein the maximum deviation is 19.60%.

Table one was made according to the above examples and comparative examples:

list one

As can be seen from the above table, when the relationship between the first valve body 11 and the pipe 12 needs to be satisfied: when a/b is more than or equal to 0 and less than or equal to 1/4, the maximum deviation between the measured flow and the theoretical flow is less than 3.21%, and the deviation value of uniform flow can be met, namely when a/b is more than or equal to 0 and less than or equal to 1/4, cooling liquid is injected into the first valve body 11, the flow of the cooling liquid in the harmonica pipes 22 of the three branches is not greatly different from the theoretical flow, and the cooling liquid is kept uniform, so that the heat dissipation uniformity of the heat dissipation assembly and the temperature of each battery in the battery module are synchronously and uniformly reduced, and the temperature uniformity of the battery module is kept.

Further, the first valve body 11 includes a first interface, which communicates with the outside, and two second interfaces; the two second ports are respectively communicated with the pipeline 12.

On the basis of the above-described structure, the first valve body 11 communicates with the pipe 12 through the two second ports, and the first port of the first valve body 11 communicates with the outside, and the cooling liquid is injected into the pipe 12 through the first port of the first valve body 11, flows in the pipe 12, and then flows into the harmonica pipe 22 through the second valve body 13.

In the present embodiment, in order for the relationship between the first valve body 11 and the pipe 12 to be satisfied: the ratio of a/b to 1/4 is more than or equal to 0, and the first valve body 11 needs to be arranged at the position of the first section, which is close to the middle of the first section, so that a three-way valve needs to be adopted as the first valve body 11, wherein the first interface is used for externally inputting cooling liquid, the second interface and the third interface are used for being communicated with pipelines 12 on two sides, so that the cooling liquid can flow towards the pipelines 12 on two sides after being injected into the first interface, the flow of the second valve body 13 on two sides of the first valve body 11 is uniform, and the heat dissipation uniformity of a heat dissipation assembly and the temperature uniformity of a battery module are improved.

Embodiment 3, on the basis of the structure of the above embodiment, when the number of the second valve bodies 13 is an odd number, the second valve bodies 13 are arranged in the following manner:

further, when an odd number of the second valve bodies 13 are provided on the pipe 12, the second valve bodies 13 are uniformly arranged in the first direction of the pipe 12.

On the basis of the above-described structure, in order to allow the cooling liquid to uniformly enter the cold plate assembly 2 through the second valve bodies 13 in the process of flowing in the pipe 12 after the injection of the first valve body 11, the second valve bodies 13 are uniformly distributed in the first direction of the pipe 12, and the distances between the adjacent two second valve bodies 13 are equal, and when the first valve body 11 is closer to the middle of the first section, the cooling liquid can be uniformly distributed on the second valve bodies 13 and uniformly flow into the cold plate assembly 2.

Embodiment 4, on the basis of the above embodiment structure, when the number of the second valve bodies 13 is an even number, one arrangement manner of the second valve bodies 13 is as follows:

further, when an even number of the second valve bodies 13 are provided on the pipe 12, the second valve bodies 13 are uniformly arranged in the first direction of the pipe 12.

Embodiment 5, on the basis of the above embodiment structure, when the number of the second valve bodies 13 is an even number, another arrangement mode of the second valve bodies 13 is as follows:

further, when an even number of second valve bodies 13 are disposed on the pipeline 12, a third valve body is further disposed on the pipeline 12, the third valve body is directly communicated with the pipeline 12, the second valve body 12 is communicated with the pipeline 12 through the third valve body, the third valve body comprises a third interface and two fourth interfaces, the third interface is communicated with the pipeline 12, the two fourth interfaces are respectively communicated with one ends, close to the pipeline 12, of the two second valve bodies 13, and then the other ends of the second valve bodies 13 are far away from the pipeline 12.

On the basis of the above-described structure, when the cooling liquid flows in the pipe 12 after being injected into the first valve body 11, it uniformly passes through the third valve body, then flows to the second valve body 13 through the third valve body, and then enters the cold plate assembly 2. The number of the third valve bodies is smaller than that of the second valve bodies 13, the third valve bodies are uniformly distributed in the first direction of the pipeline 12, the distances between the two adjacent third valve bodies are equal, and when the first valve body 11 is closer to the middle of the first section, the cooling liquid can be uniformly distributed on the third valve bodies, uniformly flows into the second valve bodies 13 at the two sides and enters the cold plate assembly 2.

By providing the third valve body, the cooling liquid injected into the first valve body 11 can uniformly flow into the third valve body, and the flow between the first valve body 11 and the third valve body can be more uniformly distributed due to the small number of the third valve bodies, and the flow of the cooling liquid flowing from the third valve body to the second valve bodies 13 on both sides can also be more uniformly distributed.

It should be noted that, in addition to these several ways of setting the second valve body 13 on the pipeline, there are several ways of setting: if multiple layers of branches connected in series and parallel are arranged, namely, each branch is communicated with multiple branches, so that the number of branches closer to the first valve body is reduced, the flow of cooling liquid is more uniform, and the cooling liquid can be selected and arranged according to the actual situation.

Further, the tubing 12 is corrugated.

Based on the above structure, the pipeline 12 is provided by a corrugated pipe. In this embodiment, the assembly in the small space can be achieved by using the bellows, the bellows has elasticity and is flexible, and can be preferably arranged in the small space, and the pipeline assembly 1 is installed in the small space by using the bellows to form each branch for achieving the assembly.

It should be noted that, in addition to the bellows arrangement pipeline 12, other manners may be used, such as a nylon pipe may be used, or other manners in the prior art may be used, and the manner in which the bellows arrangement pipeline is arranged may be selected and arranged according to the needs of the actual situation.

Further, the application also includes a heat dissipation assembly, including the above-mentioned pipeline assembly 1 and a plurality of cold plate assemblies 2, and each cold plate assembly 2 is respectively communicated with the second valve body 13.

In this embodiment, in order to achieve that the flow rates of the branches tend to be uniform, the uniformity of heat dissipation of the heat dissipation assembly is improved, so that the temperature of each battery in the battery module is synchronously and uniformly reduced, the temperature of the battery module is kept uniform, the distance between two second valve bodies 13 close to two ends of the pipeline 12 is a first section, the distance from the first valve body 11 to the center of the first section is a, half of the length of the first section is b, and 0 is less than or equal to a/b is less than or equal to 1/4. And the second valve bodies 13 are respectively communicated with the cold plate assemblies 2 in the heat dissipation assemblies to form a plurality of branches, and the more the second valve bodies 13 are, the more the branches are.

Further, the cold plate assembly 2 comprises a liquid collecting pipe 21 and a plurality of harmonica pipes 22, wherein the liquid collecting pipe 21 is provided with a water inlet and a water outlet, the water inlet is communicated with the second valve body 13, and the water outlet is communicated with the harmonica pipes 22.

On the basis of the above structure, the cold plate assembly 2 comprises the header 21 and the harmonica tube 22, wherein the header 21 is arranged at one end of the harmonica tube 22, the water inlet of the header 21 is communicated with the second valve body 13, the water outlet is communicated with the harmonica tube 22, and when cooling liquid is injected into the pipeline 12 through the first interface of the first valve body 11, the cooling liquid starts to flow in the pipeline and enters the header 21 through the water inlet of the header 21 through the second valve body 13, then flows in the header 21, and flows into the harmonica tube 22 through the water outlet of the header 21.

The cooling liquid flows in the harmonica pipes 22 to form a refrigerant flow channel, the refrigerant flows in the harmonica pipes 22 to exert a refrigerating effect, so that the heat dissipation assembly provides heat dissipation performance, and the flow rate of the refrigerant in each harmonica pipe 22 is uniform, so that the heat dissipation assembly dissipates heat uniformly, and the temperature of the battery module is uniform.

Embodiment 6, the specific structure of the heat dissipation assembly is:

further, as shown in fig. 1 and 2, the cold plate assembly 2 includes two liquid collecting pipes 21 and two harmonica pipes 22, the two harmonica pipes 22 are arranged in parallel at intervals, the two liquid collecting pipes 21 are respectively arranged at two ends of the harmonica pipes 22, and each liquid collecting pipe 21 is communicated with the two harmonica pipes 22.

Based on the above structure, the cold plate assembly 2 is provided with only two harmonica pipes 22, and the two harmonica pipes 22 are arranged in parallel at intervals, one liquid collecting pipe 21 is provided with two water outlets, and the two water outlets are respectively communicated with one ends of the two harmonica pipes 22, while the other liquid collecting pipe 21 is arranged at the other ends of the two harmonica pipes 22 and is also communicated through the water outlets.

After the cooling liquid enters the harmonica pipe 22 through the liquid collecting pipe 21, the cooling liquid enters at one end of the harmonica pipe 22 and flows out from the other end of the harmonica pipe 22 to form a circulation, so that the cooling liquid can perform heat exchange with maximum efficiency, and the heat dissipation efficiency of the heat dissipation assembly is improved.

In addition, the total thickness of the harmonica pipes 22 in the present embodiment is approximately in the range of 5mm to 7mm, the wall thickness is around 1mm, and connecting too many harmonica pipes 22 in parallel at a time easily causes the harmonica pipes 22 to be deformed so that the assembly cannot be achieved, so that in the present embodiment, the number of harmonica pipes 22 per cold plate assembly 2 is set to two, and the harmonica pipes 22 are arranged in parallel so that the heat dissipating assembly can be assembled better.

It should be noted that, in addition to the number of the harmonica tubes 22 provided by the cold plate assembly 2 in the present embodiment, one harmonica tube 22, or a plurality of harmonica tubes 22 may be provided, and the number of the harmonica tubes 22 is not limited in the present application, and may be selected and set according to the actual situation.

Further, the heat dissipation assembly comprises two pipeline assemblies 1 and three cold plate assemblies 2, the three cold plate assemblies 2 are arranged at intervals in parallel, the pipeline assemblies 1 comprise three branches, and the two pipeline assemblies 1 are arranged at two ends of the cold plate assemblies 2.

On the basis of the structure, the heat dissipation assembly consists of two pipeline assemblies 1 and three cold plate assemblies 2, the cold plate assemblies 2 are arranged in parallel at intervals, the two pipeline assemblies 1 are respectively arranged at two ends of the cold plate assemblies 2, and a second valve body 13 of each pipeline assembly 1 is communicated with the cold plate assemblies 2, when cooling liquid enters from a first valve body 11 of one pipeline assembly 1 at one end and flows through a pipeline 12, then enters a harmonica pipe 22, and then flows out from the other end of the harmonica pipe 22 and flows out from the first valve body 11 of the pipeline assembly 1 at the other end, so that circulation of the cooling liquid is realized.

Through setting up pipeline subassembly 1 at the both ends of cold plate subassembly 2, after the cooling liquid flows into cold plate subassembly 2 from pipeline subassembly 1 of one end, then exert the heat dissipation effect in cold plate subassembly 2, then follow pipeline subassembly 1 of the other end of cold plate subassembly 2 again and flow out, form the circulation loop, make the cooling liquid in the cold plate subassembly 2 can exert the heat dissipation effect in the flow process to improve the radiating efficiency of cold plate subassembly 2.

It should be noted that, in this embodiment, besides the combination of three cold plate assemblies 2 to form the heat dissipation assembly, a different number of cold plate assemblies 2 may be used to perform the arrangement, for example, two cold plate assemblies 2 or six cold plate assemblies 2 may be used, and the number of cold plate assemblies 2 is not limited in this application, and only the cold plate assemblies 2 may be allowed to circulate cooling liquid, and may enter from one pipeline assembly 1 and exit from another pipeline assembly 1, so that the arrangement may be selected and arranged according to the actual situation.

Example 7 based on the structure of all the examples described above,

the present application also provides a battery device comprising: a case; the battery module is arranged in the box body; the heat dissipation assembly is used for reducing the temperature of the battery module.

On the basis of the structure, in the running process of the battery device, the battery module supplies power and generates larger heat, and the heat dissipation assembly dissipates heat to the battery module. And because the cooling liquid flow of each branch in the heat dissipation assembly is approximately uniform, the heat dissipation efficiency of each part of the heat dissipation assembly is also approximately consistent, so that the temperature of the battery at each position of the battery module is synchronously and uniformly reduced, the temperature uniformity of the battery module is maintained, and the service life of the battery module is relatively prolonged.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.

Claims

1. A piping assembly (1), characterized by comprising:

pipeline (12), pipeline (12) extend along first direction, be equipped with first valve body (11) and a plurality of second valve body (13) on pipeline (12), be close to the distance between two second valve body (13) at pipeline (12) both ends is first section, first valve body (11) extremely the distance in first section center is a, the half of the length of first section is b, and 0 is less than or equal to a/b is less than or equal to 1/4.

2. The line assembly (1) according to claim 1, characterized in that the first valve body (11) comprises a first interface communicating with the outside and two second interfaces communicating with the line (12).

3. The piping component (1) according to claim 2, characterized in that the second valve bodies (13) are arranged at even intervals in the first direction of the piping (12) when the number of the second valve bodies (13) is an odd number.

4. The piping component (1) according to claim 2, characterized in that the second valve bodies (13) are arranged at even intervals in the first direction of the piping (12) when the number of the second valve bodies (13) is even.

5. The pipeline assembly (1) according to claim 2, wherein when the number of the second valve bodies (13) is even, a plurality of third valve bodies are further arranged on the pipeline (12), the third valve bodies comprise a third interface and two fourth interfaces, the third interface is communicated with the pipeline (12), the two fourth interfaces are respectively communicated with one ends, close to the pipeline (12), of the two second valve bodies (13), the other ends of the second valve bodies (13) are far away from the pipeline (12), and the second valve bodies (13) are communicated with the pipeline (12) through the third valve bodies.

6. A tubing assembly (1) according to any one of claims 1-5, wherein the tubing (12) is in bellows communication.

7. A heat dissipating assembly, comprising:

the piping assembly (1) according to any one of claims 1-6;

-a plurality of cold plate assemblies (2), each cold plate assembly (2) being in communication with each second valve body (13), respectively.

8. The heat sink assembly according to claim 7, characterized in that the cold plate assembly (2) comprises a header (21) and a number of harmonica pipes (22), the header (21) being provided with a water inlet communicating with the second valve body (13) and a water outlet communicating with the harmonica pipes (22).

9. The heat dissipation assembly according to claim 8, wherein the cold plate assembly (2) comprises two liquid collecting pipes (21) and two harmonica pipes (22), the two harmonica pipes (22) are arranged in parallel at intervals, the two liquid collecting pipes (21) are respectively arranged at two ends of the harmonica pipes (22), and each liquid collecting pipe (21) is communicated with the two harmonica pipes (22).

10. A battery device, characterized by comprising:

a case;

the battery module is arranged in the box body;

the heat dissipation assembly as recited in any one of claims 7-9, being used to reduce the temperature of the battery module.