CN218101444U - Cooling components and energy storage devices - Google Patents

Abstract

The utility model discloses a cooling module and energy memory, cooling module includes: the cooling device comprises cooling plates, a first communicating pipe and a second communicating pipe, wherein the cooling plates are arranged at intervals, and each cooling plate comprises a liquid inlet and a liquid outlet; the first communicating pipe comprises a liquid inlet pipe and a plurality of flow dividing pipes, the liquid inlet pipe and the plurality of flow dividing pipes are integrally formed or welded, and each flow dividing pipe is fixedly connected with each cooling plate and communicated with the liquid inlet; the second communicating pipe comprises a liquid outlet pipe and a plurality of collecting pipes, the liquid outlet pipe and the plurality of collecting pipes are integrally formed or welded, and each collecting pipe is fixedly connected with each cooling plate and communicated with the liquid outlet. Therefore, on one hand, two large surfaces of the cooling plate can participate in the cooling process, and the cooling efficiency can be effectively improved; on the other hand, the number of the interfaces needing to be connected externally is less, the assembly is convenient, the pipe layout difficulty is lower, the cost is lower, the sealing stability is high, and the potential safety hazard can be further reduced.

Description

Cooling components and energy storage devices

technical field

The utility model relates to the technical field of energy storage devices, in particular to a cooling assembly and an energy storage device.

Background technique

In related technologies, energy storage devices (such as battery packs, battery modules, etc.) are generally cooled by air cooling or liquid cooling. In the technical solution of liquid cooling, the cooling plate is generally arranged below or above for single-sided cooling. , the cooling efficiency is low; at the same time, with the increase of the energy density of the battery pack, there are usually multiple battery modules in the battery pack and multiple liquid cooling plates are used for cooling. Since multiple liquid cooling plates need to be cooled Liquid circulation, resulting in too many pipe joints, cumbersome installation, high cost, and high probability of seal failure.

Utility model content

The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a cooling assembly, which has higher cooling efficiency, fewer interfaces, and better sealing effect.

The utility model further proposes an energy storage device using the above-mentioned cooling assembly.

The cooling assembly according to the embodiment of the first aspect of the utility model includes: a cooling plate, a first communication pipe and a second communication pipe, a plurality of the cooling plates are arranged at intervals, each of the cooling plates includes a liquid inlet and a liquid outlet mouth; the first communication pipe includes a liquid inlet pipe and a plurality of distribution pipes, the liquid inlet pipe and the plurality of distribution pipes are integrally formed or welded, each of the distribution pipes is fixedly connected with each of the cooling plates and is connected with the The liquid inlet is connected; the second communication pipe includes a liquid outlet pipe and a plurality of confluence pipes, the liquid outlet pipe is integrally formed or welded with the plurality of confluence pipes, and each of the confluence pipes is connected with each of the confluence pipes. The cooling plate is fixedly connected and communicated with the liquid outlet.

According to the cooling assembly of the embodiment of the utility model, by setting a plurality of cooling plates, the first connecting pipe and the second connecting pipe, on the one hand, the two large surfaces of the cooling plate can participate in the cooling process, which can effectively improve the cooling efficiency; On the other hand, the number of external connections is less, the assembly is convenient, the pipe layout is less difficult, the cost is lower, and the sealing stability is high, which can further reduce potential safety hazards.

According to some embodiments of the present utility model, a cooling channel is formed inside the cooling plate, the cooling channel extends along the extension direction of the cooling plate, and the liquid inlets are respectively provided at both ends of the cooling channel and the liquid outlet.

Further, the liquid inlet and the liquid outlet are located at the same end of the cooling plate.

Further, the liquid inlet is located above the liquid outlet along the height direction of the search cooling plate perpendicular to the extending direction.

According to some embodiments of the present utility model, the cooling plate includes: a first plate body and a second plate body, the cooling channel is formed between the first plate body and the second plate body, the The opposite surface of the first plate body and the second plate body has a plurality of spoiler ribs along the extending direction of the cooling channel.

Further, the spoiler ribs on the first plate are opposite to or staggered with the spoiler ribs on the second plate.

Further, the profile size of the spoiler ribs on the first plate body is the same as or different from the profile size of the spoiler ribs on the second plate body.

Further, in the section of the flow channel taken along the plane perpendicular to the extending direction of the cooling flow channel, the section of the flow channel at the liquid inlet or at the liquid outlet is smaller than that at other positions Runner section.

In some embodiments, the liquid inlet pipe is welded to the cooling plate, and the liquid outlet pipe is welded to the cooling plate.

The energy storage device according to the embodiment of the second aspect of the present invention includes: a plurality of battery modules and the cooling assembly described in the above embodiment, the cooling assembly includes a plurality of cooling plates, and two adjacent battery modules A cooling plate is arranged between the groups.

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

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a schematic diagram of a cooling assembly according to an embodiment of the present invention;

2 is a schematic diagram of a cooling plate according to an embodiment of the present invention;

3 is a schematic cross-sectional view of a cooling plate according to an embodiment of the present invention;

Fig. 4A is a schematic diagram of a first communicating pipe according to an embodiment of the present invention;

Fig. 4B is a schematic diagram of a second communicating pipe according to an embodiment of the present invention;

Fig. 5A is a schematic diagram of another second communicating pipe according to an embodiment of the present invention;

Fig. 5B is a schematic diagram of another second communicating pipe according to an embodiment of the present invention.

Reference signs:

cooling assembly 100,

Cooling plate 10, first plate body 11, second plate body 12, cooling channel 13, liquid inlet 14, liquid outlet 15, spoiler ribs 16,

The first communication pipe 20, the liquid inlet pipe 21, the first flange part 211, the distribution pipe 22,

The second communication pipe 30 , the liquid outlet pipe 31 , the second flange portion 311 , and the confluence pipe 32 .

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

The cooling assembly according to the embodiment of the present utility model will be described below with reference to FIGS. 1-5 .

As shown in FIG. 1 , FIG. 2 , and FIG. 3 , the cooling assembly according to the embodiment of the first aspect of the present invention includes: a first communication pipe and a second communication pipe.

Wherein, there are multiple cooling plates 10, a plurality of cooling plates 10 are arranged at intervals, each cooling plate 10 includes a liquid inlet 14 and a liquid outlet 15, the first communication pipe 20 includes a liquid inlet pipe 21 and a plurality of branch pipes 22, The liquid inlet pipe 21 is integrally formed or welded with a plurality of branch pipes 22, and each branch pipe 22 is fixedly connected with each cooling plate 10 and communicated with the liquid inlet 14. The second communication pipe 30 includes a liquid outlet pipe 31 and a plurality of The manifold 32 and the liquid outlet pipe 31 are integrally formed or welded with a plurality of manifolds 32 , and each manifold 32 is fixedly connected to each cooling plate 10 and communicated with the liquid outlet 15 .

FIG. 4A shows the first communication pipe 20 in the case of two cooling plates 10 , and FIG. 4B shows the second communication pipe 30 in the case of two cooling plates 10 .

Figure 5A is the first communication pipe 20 in the case of four cooling plates 10, the number of branch pipes 22 of the first communication pipe 20 is four, and communicated with one cooling plate 10 respectively, and Figure 5B is when there are four In the case of the cooling plate 10 , there are four second communication pipes 30 , and there are four confluence pipes 32 in the second communication pipe 30 , which communicate with one cooling plate 10 respectively.

Specifically, each cooling plate 10 includes a liquid inlet 14 and a liquid outlet 15, the inlet of each branch pipe 22 communicates with the liquid inlet pipe 21, the outlet of each branch pipe 22 communicates with the liquid inlet 14, each The inlet of each manifold 32 communicates with the liquid outlet 15, and the outlet of each manifold 32 communicates with the liquid outlet 31.

Thus, the cooling medium can be supplied to the liquid inlet pipe 21 by the external cooling medium source, and is divided into the liquid inlet 14 by the plurality of branch pipes 22 of the first communication pipe 20, so as to enter the plurality of cooling plates 10, and the inside of the cooling plate 10 The cooling medium can flow out through the liquid outlet 15, collect through a plurality of confluence pipes 32, flow into the second communication pipe 30, and finally flow out through the liquid outlet pipe 31 of the second communication pipe 30 to complete a cooling cycle.

It can be understood that a cooling space is defined between two adjacent cooling plates 10, and components that need to be cooled (for example: battery modules) can be arranged in the cooling space, so that the components that need to be cooled can realize dual cooling. Surface cooling to improve cooling efficiency, and multiple cooling plates 10 can realize the injection and export of cooling medium through a first communication pipe 20 and a second communication pipe 30, which can reduce the number of interfaces, reduce the difficulty of line pipe layout, and reduce costs , and improve the sealing performance of the cooling assembly 100 .

It should be pointed out that the integral formation or welding of the confluence pipe 32 and the liquid outlet pipe 31 , and the distribution pipe 22 and the liquid inlet pipe 21 can also improve the sealing performance of the first communication pipe 20 and the second communication pipe 30 .

According to the cooling assembly 100 of the embodiment of the present utility model, by arranging a plurality of cooling plates 10, the first connecting pipe 20 and the second connecting pipe 30, on the one hand, the two large surfaces of the cooling plate 10 can participate in the cooling process, which can Effectively improve the cooling efficiency; on the other hand, the number of external connections is less, the assembly is convenient, the pipe layout is less difficult, the cost is lower, and the sealing stability is high, which can further reduce safety hazards.

As shown in FIG. 3 , a cooling channel 13 is formed inside the cooling plate 10 , and the cooling channel 13 extends along the extending direction of the cooling plate 10 . The two ends of the cooling channel 13 are respectively provided with a liquid inlet 14 and a liquid outlet 15 .

That is to say, the cooling channel 13 can extend from one end to the other end in the extending direction of the cooling plate 10, or can extend back and forth in the extending direction of the cooling plate 10, that is, after extending from one end to the other end, the cooling channel 13 is bent And extend back to one end from the other end. As a result, the cooling channel 13 can cover a larger area on the liquid cooling plate, and the heat exchange area can be larger, so as to effectively improve the cooling efficiency.

It should be pointed out that one end of the cooling flow channel 13 is formed as a liquid inlet 14 and the other end is formed as a liquid outlet 15 and is not specifically limited to the two ends in the length direction of the cooling plate 10. The liquid inlet 14 and the liquid outlet 15 They may also be located at the same end in the lengthwise direction of the cooling plate 10 .

As shown in Figure 2, in some embodiments, the liquid inlet 14 and the liquid outlet 15 are located at the same end along the extending direction of the cooling plate 10, and the liquid inlet 14 is located along the height direction of the cooling plate 10 perpendicular to the extending direction. Located above the liquid outlet 15.

Thus, on the one hand, the liquid inlet 14 and the liquid outlet 15 are arranged on the same end of the cooling plate 10, and the corresponding first communication pipe 20 and the second communication pipe 30 can also be arranged on the same end of the cooling plate 10, which can improve cooling. The integration of the component 100 improves the space occupation of the cooling component 100; on the other hand, the cooling medium entering through the liquid inlet 14 can further flow in the cooling channel 13 under the driving force of the cooling medium source and the action of gravity, giving cooling Greater initial kinetic energy of the medium to improve flow efficiency, which in turn increases cooling efficiency.

As shown in FIG. 3 , according to some embodiments of the present utility model, the cooling plate 10 includes: a first plate body 11 and a second plate body 12 , and a cooling channel is formed between the first plate body 11 and the second plate body 12 13 , the opposite surfaces of the first plate body 11 and the second plate body 12 have a plurality of spoilers 16 along the extending direction of the cooling channel 13 .

Specifically, the first plate body 11 and the second plate body 12 are arranged opposite to each other, and the first plate body 11 and/or the second plate body 12 are provided with protrusions extending away from each other to define a cooling flow channel 13 for cooling One end of the flow channel 13 is formed as a liquid inlet 14 , and the other end is formed as a liquid outlet 15 .

In other words, the first plate 11 is formed with a raised portion extending away from the second plate 12; or the second plate 12 is formed with a raised portion extending away from the first plate 11; or the first plate 11 and the second Protrusions (see FIG. 3 ) extending away from each other are respectively formed on the plate body 12 to define a cooling flow channel 13. A liquid inlet 14 and a liquid outlet 15 are formed at both ends of the cooling flow channel 13 to realize one end entering Cooling medium, one end flows out of the cooling medium to ensure cooling efficiency and cooling effect.

As shown in FIGS. 1 and 2 , further, in the extending direction of the cooling channel 13 , the surface of the first plate body 11 facing the second plate body 12 and the surface of the second plate body 12 facing the first plate body 11 Both are provided with spoilers 16 . Therefore, through the arrangement of the structure of the double spoiler 16, while achieving spoiling, the length of the cooling channel 13 can be effectively extended, so as to improve the cooling effect and cooling efficiency.

Further, the spoiler 16 on the first plate body 11 and the spoiler 16 on the second plate body 12 are arranged oppositely or alternately.

Wherein, the spoiler 16 on the first plate body 11 and the spoiler 16 on the second plate body 12 are arranged oppositely (in the width direction) or staggeredly arranged (in the height direction), both of which can make the cooling channel 13 produce a cross section Changes to improve the bypassing effect.

It should be noted that the spoilers 16 arranged oppositely can realize the cross-sectional change of the cooling channel 13 in the width direction of the cooling plate 10, and the spoilers 16 arranged in a staggered manner can realize the cross-section of the cooling channel 13 in the height direction. Variety.

Further, the profile size of the spoiler 16 on the first plate body 11 is the same as or different from the profile size of the spoiler 16 on the second plate body 12 .

Wherein, in the embodiment in which the spoiler 16 on the first plate body 11 and the second plate body 12 are the same, while realizing the flow around, the same method can be used when processing the first plate body 11 and the second plate body 12. The mold can reduce the processing cost, and in the embodiment where the size of the spoiler 16 of the first plate body 11 and the second plate body 12 are different, the width of the cooling channel 13 can be ensured under the premise of achieving sufficient flow disturbance It is more reasonable to avoid too large overall outline size of the two spoilers 16, resulting in too slow flow rate of the cooling medium, and to avoid too small overall outline dimensions of the two spoiler 16, resulting in excessive pressure in the cooling plate 10, to take into account Sealing performance and cooling efficiency.

Exemplarily, in the embodiment where the spoilers 16 on the first plate body 11 and the second plate body 12 have different sizes, there are at least three sets of spoilers 16 in the extending direction of the cooling channel 13, the first set The large spoiler of the spoiler is on the top, the small spoiler is on the bottom, the large spoiler of the second set of spoilers is on the bottom, the small spoiler is on the top, and the large spoiler of the third set of spoilers is on the top , small spoilers below.

Thus, the length of the cooling flow channel 13 can be further extended by multiple sets of spoilers 16 arranged in a staggered manner, so as to realize sufficient heat exchange and improve the cooling effect.

Referring to Fig. 2, in the flow channel cross section taken along the plane perpendicular to the extension direction of the cooling flow channel 13, the flow channel section at the liquid inlet 14 or at the liquid outlet 15 is smaller than the flow channel section at other positions .

That is to say, the cooling channel 13 is formed with the flow channel section of the liquid inlet 14 and the liquid outlet 15 area smaller than the flow channel section of other areas, so that the cooling channel 13 forms the width of the area of the liquid outlet 15 and the area of the liquid outlet. The diameters of 15 are similar, and the width of the cooling flow channel 13 forming the liquid inlet 14 area is similar to the diameter of the liquid inlet 14, so that the cooling medium can enter the cooling flow channel 13 faster and flow out of the cooling flow channel 13 faster. And during the outflow process, turbulence is not easy to occur, which can avoid sudden changes in the cross section of the cooling channel 13, ensure that the flow rate can be kept stable, avoid sudden changes in the flow resistance during the flow of the cooling medium, and improve the working stability of the cooling assembly 100.

As shown in Fig. 4 and Fig. 5, the liquid inlet pipe 21 is provided with a first flange part 211, and the liquid outlet pipe 31 is provided with a second flange part 311, and passes through the first flange part 211 and the second flange part 311 respectively. The flange portion 311 is fixed to surrounding components.

Wherein, the first flange part 211 and the second flange part 311 can be fixed on the end plate and the box body of the parts that need to be cooled, and the cooling plate 10 is clamped on the parts that need to be cooled, which can further improve the performance of the cooling assembly 100. Fixed stability in parts that require cooling.

In some embodiments, the liquid inlet pipe 21 is welded to the cooling plate 10 , and the liquid outlet pipe 31 is welded to the cooling pipe.

The energy storage device according to the embodiment of the second aspect of the utility model includes: multiple battery modules and the cooling assembly 100 in the above-mentioned embodiment, the cooling assembly 100 includes multiple cooling plates 10, between two adjacent battery modules A cooling plate 10 is provided.

Specifically, each cooling plate 10 is arranged between adjacent battery modules, that is, the cooling plate 10 is located on the side of the battery module, so that the two sides of the cooling plate 10 can respectively face the two sides of the cooling plate 10. The cooling of two battery modules can not only realize the double-sided cooling of the cooling plate 10, increase the heat exchange area of the cooling plate 10, improve the cooling efficiency, but also improve the temperature uniformity among multiple battery modules and improve the safety performance .

At the same time, a plurality of cooling plates 10 are all in communication with a first communication pipe 20 and a second communication pipe 30, and the cooling assembly 100 of the plurality of cooling plates 10 only needs to be provided with two external interfaces to realize the supply to the first communication pipe 20 respectively. The cooling medium can be transferred through the second communication pipe 30 to transfer the cooling medium discharged from the cooling plate 10, so as to realize the parallel connection of multiple cooling plates 10, which can reduce the number of interfaces, simplify the structure, reduce the cost, improve the sealing stability, and reduce the risk of sealing failure. probability, while the structures of multiple cooling plates 10 can be completely consistent, which can also reduce processing costs and improve processing efficiency.

Of course, the cooperation between the cooling plate 10 and the battery module of the cooling assembly 100 in the embodiment of the present utility model is not limited thereto. Exemplarily, the energy storage device may include four battery modules, and the four battery modules are arranged in sequence, respectively The first battery module, the second battery module, the third battery module and the fourth battery module can be provided with a liquid cold plate 10 between two adjacent battery modules, that is, the first battery module and the second battery module Between the second battery module, between the second battery module and the third battery module, between the third battery module and the fourth battery module; it can also be set between two battery modules The liquid cold plate 10, such as the liquid cold plate 10, can be arranged on the outer surface of the first battery module, between the second battery module and the third battery module, and on the outer surface of the fourth battery module; A liquid cooling plate 10 is arranged between a battery module and the second battery module, between the third battery module and the fourth battery module, that is, when there are multiple battery modules, the single battery module is not specifically limited. Both sides of the group need to have liquid cold plates 10 .

According to the energy storage device of the embodiment of the present invention, the above-mentioned cooling assembly 100 can be used to improve the cooling effect of the energy storage device, avoid heat concentration, improve working stability and use safety, reduce the cost of the energy storage device, and improve The sealing performance of the energy storage device can further reduce potential safety hazards.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In the description of the present utility model, "first feature" and "second feature" may include one or more of these features.

In the description of the present utility model, "plurality" means two or more.

In the description of the present utility model, "above" or "under" a first feature may include that the first and second features are in direct contact, and may also include that the first and second features are not in direct contact but through Additional characteristic contacts between them.

In the description of the present invention, the first feature being "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is high in level on the second feature.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A cooling assembly, comprising:

the cooling plates are arranged at intervals, and each cooling plate comprises a liquid inlet and a liquid outlet;

the first communicating pipe comprises a liquid inlet pipe and a plurality of flow dividing pipes, the liquid inlet pipe and the plurality of flow dividing pipes are integrally formed or welded, and each flow dividing pipe is fixedly connected with each cooling plate and communicated with the liquid inlet;

and the second communicating pipe comprises a liquid outlet pipe and a plurality of collecting pipes, wherein the liquid outlet pipe is integrally formed or welded with the plurality of collecting pipes, and each collecting pipe is fixedly connected with each cooling plate and communicated with the liquid outlet.

2. The cooling assembly as claimed in claim 1, wherein a cooling channel is formed inside the cooling plate, the cooling channel extends along an extending direction of the cooling plate, and the liquid inlet and the liquid outlet are respectively disposed at two ends of the cooling channel.

3. The cooling assembly as claimed in claim 2, wherein the liquid inlet and the liquid outlet are located at the same end in the extension direction of the cooling plate.

4. The cooling assembly of claim 3, wherein the liquid inlet is located above the liquid outlet along a height of the cooling plate perpendicular to the direction of extension.

5. The cooling assembly of claim 2, wherein the cooling plate comprises:

a first plate body;

the second plate body, first plate body with be formed with between the second plate body cooling channel, first plate body with relative face is followed on the second plate body cooling channel's extending direction has a plurality of vortex muscle.

6. The cooling assembly of claim 5, wherein the turbulator ribs on the first plate are disposed opposite or staggered from the turbulator ribs on the second plate.

7. The cooling assembly as claimed in claim 5 or 6, wherein the turbulator ribs on the first plate body have the same or different profile dimensions as the turbulator ribs on the second plate body.

8. A cooling assembly according to claim 4, wherein the cross-section of the flow path taken along a plane perpendicular to the extension of the cooling flow path at the inlet or at the outlet is smaller than the cross-section of the flow path at other locations.

9. The cooling assembly of claim 1, wherein the liquid inlet pipe is welded to the cooling plate and the liquid outlet pipe is welded to the cooling plate.

10. An energy storage device, comprising:

a plurality of battery modules;

the cooling assembly according to any one of claims 1 to 9, comprising a plurality of the cooling plates, one of which is disposed between adjacent two of the battery modules.

Images