CN220710460U - Cooling assembly, battery and electricity utilization device - Google Patents

Abstract

The application provides a cooling module, belongs to battery technology field. The cooling assembly includes: a pipe body, wherein a first flow channel for fluid to flow is formed in the pipe body, and a first opening communicated with the first flow channel is formed in the pipe body; and a cover body, wherein a second flow passage for fluid to flow is formed in the cover body, a second opening communicated with the second flow passage is formed in the cover body, a first opening of the pipe body is fixedly connected to the second opening of the cover body so as to be communicated with the first flow passage and the second flow passage, the cover body is sleeved on the outer side of the pipe body, the pipe body and the cover body form an overlapping part at the sleeved part, the cover body comprises a first inner surface extending along the peripheral direction of the overlapping part, one or more bulges are arranged on the first inner surface, and the bulges are configured to be jointed with the outer wall surface of the pipe body at the overlapping part. The application also provides a battery and an electric device.

Description

Cooling assembly, battery and electricity utilization device

Technical Field

The application relates to the technical field of batteries, in particular to a cooling assembly, a battery and an electric device.

Background

In a power battery system, the operation of the battery generates excessive heat, and the heat is transferred by the way that the battery or the module is in contact with the surface of a cooling assembly (such as a water cooling plate), and finally is taken away by fluid passing through an internal flow channel of a device.

The cooling assembly typically includes a tube that is attached to the cover using a brazing process.

However, the tube and the cover often cause a series of problems such as poor welding quality when brazing.

Disclosure of Invention

The present application aims to solve at least one of the technical problems existing in the background art. It is therefore an object of the present application to provide a cooling assembly, a battery and an electrical device, which alleviate, mitigate or eliminate the problem of poor welding quality of the tube and the cover when welding.

Embodiments of the first aspect of the present application provide a cooling assembly comprising: a pipe body, wherein a first flow channel for fluid to flow is formed in the pipe body, and a first opening communicated with the first flow channel is formed in the pipe body; and a cover body, wherein a second flow passage for fluid to flow is formed in the cover body, a second opening communicated with the second flow passage is formed in the cover body, a first opening of the pipe body is fixedly connected to the second opening of the cover body so as to be communicated with the first flow passage and the second flow passage, the cover body is sleeved on the outer side of the pipe body, the pipe body and the cover body form an overlapping part at the sleeved part, the cover body comprises a first inner surface extending along the peripheral direction of the overlapping part, one or more bulges are arranged on the first inner surface, and the bulges are configured to be jointed with the outer wall surface of the pipe body at the overlapping part.

In the technical scheme of the embodiment of the application, one or more protrusions are arranged on the inner surface of the cover body. Under the condition that machining tolerance exists in the size of the pipe body or the flatness of the surface of the pipe body is poor, the protrusions arranged on the inner surface of the cover body can be used for compensating gaps at welding positions, and the fitting degree of the pipe body and the cover body is improved, so that the welding quality is improved.

In some embodiments, the tube body has a length direction X and a width direction Y, and at least one support rib is disposed inside the tube body, and the support ribs are sequentially distributed along the width direction Y and extend along the length direction X. Through setting up the supporting rib in the body inside, can reduce the deformation of body welded surface in supporting rib department, improve welding quality.

In some embodiments, one or more protrusions are circumferentially distributed on the first inner surface to abut against corresponding outer wall surface areas of the outer wall surface corresponding to portions of the interior of the tube body not occupied by the support ribs. The position that the body does not set up the supporting rib, owing to lack the support, can produce deformation, leads to body and lid laminating not good. Through setting up one or more protruding setting on the first internal surface in the lid cup joint the position in the space that the body inside was not occupied by the supporting rib under the circumstances of body outside, can utilize protruding compensation not set up the deformation in supporting rib position, improve the laminating degree of body and lid.

In some embodiments, the first inner surface is provided with a first set of protrusions and a second set of protrusions, the first set of protrusions being located on a first inner surface area of the first inner surface, the second set of protrusions being located on a second inner surface area of the first inner surface, the first inner surface area and the second inner surface area facing each other. Through setting up the arch respectively at two interior surface areas that face each other on first internal surface, can make protruding compensation to the deformation that produces in both sides that the outer wall surface of pipe is relative, improve the laminating degree of body and lid.

In some embodiments, the first set of protrusions and the second set of protrusions comprise the same number of protrusions. By providing the same number of protrusions on the first inner surface and the two inner surface areas facing each other, respectively, the protrusions can be made more uniform in compensation of deformation of the welding surface, and the tube body and the cover body can be made to fit better.

In some embodiments, the first set of protrusions and the second set of protrusions are distributed mirror-symmetrically to each other on the first inner surface. By arranging the protrusions with the distribution positions mirror-symmetrical to each other in the two inner surface areas facing each other on the first inner surface, the protrusions can compensate the deformation of the outer wall surfaces at two sides of the pipe body mirror-symmetrical to each other, the welding surfaces are better attached, and the welding quality is improved.

In some embodiments, the at least one support rib divides the first flow passage into a plurality of chambers, the cover further includes a second inner surface connected to the first inner surface, one or more stop ribs are provided on the second inner surface, the stop ribs protruding from the second inner surface to protrude into respective ones of the plurality of chambers. Through setting up spacing muscle, when lid and body assembly, can be with the body joint between spacing muscle and first internal surface better, improve the laminating degree of body and lid.

In some embodiments, the cooling assembly includes two covers for sleeving on two ends of the tube respectively. In this way, the two ends of the tube body can be connected to one cover body each, which is advantageous in terms of a simplified installation connection.

Embodiments of the second aspect of the present application provide a battery comprising at least one battery cell or battery module, and at least one cooling assembly of the above embodiments, the cooling assembly being thermally coupled to the at least one battery cell or battery module.

An embodiment of a third aspect of the present application provides an electrical device, including a battery in the above embodiment, where the battery is configured to provide electrical energy.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.

FIG. 1 is a schematic structural view of a cooling assembly according to some embodiments of the present application;

FIG. 2 is a schematic structural view of a pipe body according to some embodiments of the present application;

FIG. 3 is a schematic view of a cover according to some embodiments of the present disclosure;

FIG. 4 is a schematic view of a cover according to other embodiments of the present disclosure;

fig. 5 is a schematic structural view of a battery according to some embodiments of the present application;

FIG. 6 is a schematic structural view of a vehicle according to some embodiments of the present application;

reference numerals illustrate:

a length direction X and a width direction Y;

a vehicle 1000;

cooling assembly 100, controller 200, motor 300, battery 600;

a battery cell or battery module 61;

a tube body 10, a first opening 11, a second opening 12;

cover 20, outer wall surface 21, support ribs 22, chamber 23;

a first inner surface 31, a second inner surface 32, a protrusion 33 and a limit rib 34.

Detailed Description

Embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present application, and thus are only examples, and are not intended to limit the scope of protection of the present application.

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 application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the figures above are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first," "second," etc. are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, which means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural sheets" refers to two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the embodiments of the present application and for simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles, and the like, and a plurality of fields such as military equipment, aerospace, and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

Heat is generated during the operation of the battery, resulting in heat generation of the battery, which reduces the reliability and safety of the battery system, and thus, a cooling assembly (e.g., a water cooling plate) is required to remove the surplus heat generated by the operation of the battery through the fluid.

The cooling assembly includes a tube and a cap that need to be joined and sealed to reduce the risk of leakage of fluid from the cooling assembly. At present, a pipe body and a cover body in the cooling assembly are all made of metal materials, and are welded and connected by adopting a brazing process. In the production process of the pipe body, certain tolerance exists due to the fact that machining size is high, the surface flatness of the pipe body is difficult to control, the joint degree of the pipe body and the cover body is poor in the assembly process of the pipe body and the cover body, gaps exist on welding surfaces, welding quality is poor, and the sealing performance of the cooling assembly is affected.

In order to alleviate, alleviate or eliminate the relatively poor problem of body and lid degree of adhesion, can set up one or more archs at the internal surface of lid, compensate the clearance between the welded surface of body and lid through this arch, improve the degree of adhesion of body and lid, improve welding quality. Further, supporting ribs can be arranged in the pipe body, so that deformation of the welding surface of the pipe body is reduced. Through the protruding cooperation on the internal surface of supporting rib and lid in the body, use the arch to compensate the deformation of not setting up the supporting rib department, improve welding quality. Still further, can set up spacing muscle at the lid, fix the body through spacing muscle better, improve the reliability that body and lid are connected.

Based on the above, a cooling assembly is designed to alleviate, mitigate or eliminate the problem of poor fit of the welded surface of the tube body and the cover body by providing one or more protrusions on the inner surface of the cover body.

The cooling assembly disclosed in the embodiments of the present application can be used in a battery. But is not limited to use in electrical devices such as vehicles, boats or aircraft. The power supply system with the cooling assembly, the battery and the like disclosed by the application can be used for forming the power utilization device, so that the fitting degree of the pipe body and the cover body is improved, the gap between welding surfaces is reduced, the welding quality is improved, and the sealing performance and the reliability of the cooling assembly are improved.

The embodiment of the application provides a cooling functional component using a cooling assembly as an electric device, wherein the electric device can be, but is not limited to, a mobile phone, a flat plate, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

The present embodiment provides a cooling assembly 100, referring to fig. 1, and further referring to fig. 2 to 4. Fig. 1 is a schematic diagram of a cooling assembly 100 according to some embodiments of the present application. The cooling assembly 100 includes a tube body 10, a first flow passage for fluid flow is formed inside the tube body 10, and the tube body 10 forms a first opening 11 communicating with the first flow passage. The cooling assembly further comprises a cover 20, a second flow passage for fluid to flow is formed in the cover 20, a second opening 12 communicated with the second flow passage is formed in the cover 20, and the first opening 11 of the pipe body 10 is fixedly connected to the second opening 12 of the cover 20 so as to be communicated with the first flow passage and the second flow passage. Wherein, the cover 20 is used for sleeving the outer side of the pipe body 10, the pipe body 10 and the cover 20 form an overlapped part at the sleeved part, the cover 20 comprises a first inner surface 31 extending along the peripheral direction of the overlapped part, one or more bulges 33 are arranged on the first inner surface 31, and the bulges 33 are configured to be jointed with the outer wall surface 21 of the pipe body 10 at the overlapped part.

The first opening 11 of the tube body 10 is used for introducing fluid into the inner first flow channel or for leading fluid out of the inner first flow channel. For connection with the tube body 10, the cover body 20 includes a second opening 12. The cover 20 forms a second flow path inside for the flow of fluid. The first opening 11 of the tube body 10 is fixedly connected to the second opening 12 of the cover body 20 to communicate the first flow channel and the second flow channel. The cover 20 is sleeved on the outer side of the pipe body 10, and can cover the first opening 11 of the pipe body 10, so that the risk of fluid flowing out of the pipe body 10 is reduced. For example, the fluid may include a liquid and/or a gas. In the example shown in fig. 1, the cover 20 may be provided with a protrusion 33 for engaging with the outer wall surface 21 of the overlapping portion of the pipe 10 in the case where the cover 20 is fitted over the outside of the pipe 10.

The first inner surface of the cover body is provided with one or more protrusions, so that gaps generated due to poor fit between the pipe body and the cover body can be compensated when the pipe body and the cover body are assembled. The bulge is connected with the outer wall surface of the overlapping part of the pipe body under the condition that the cover body is sleeved on the outer side of the pipe body, so that the problem of poor adhesion between the pipe body and the cover body caused by poor tolerance and surface flatness during pipe body processing can be solved, and the welding quality is improved.

It should be appreciated that the various embodiments of the present application are applicable not only to brazing scenarios, but also to other welding scenarios, such as laser welding.

According to some embodiments of the present application, referring to fig. 2, the pipe body 10 has a length direction X and a width direction Y, and at least one support rib 22 is provided inside the pipe body 10, and the support ribs 22 are sequentially distributed along the width direction Y and extend along the length direction X.

In the example shown in fig. 2, at least one support rib 22 is provided in the width direction Y inside the pipe body 10, the support rib 22 extending in the length direction X and supporting the outer wall surface 21 of the pipe body 10.

Through setting up the supporting rib in the body inside, can reduce the deformation of the welding face of body in the position department that the supporting rib was located, make body and lid welding face laminate better to improve welding quality.

According to some embodiments of the present application, referring to fig. 2 and 3, one or more protrusions 33 are circumferentially distributed on the first inner surface 31 to abut against a corresponding outer wall area of the outer wall 21, which corresponds to a portion of the space inside the pipe body 10 not occupied by the support ribs 22.

In this context, the term "circumferential direction" may refer to a direction around an axis of the tube 10 in a plane perpendicular to the axis in the case where the tube 10 and the cover 20 form a coincident portion at the portion where they are sleeved.

In the example shown in fig. 2 and 3, at least one support rib 22 is provided in the width direction Y inside the pipe body 10, and one or more protrusions 33 distributed on the first inner surface 31 in the circumferential direction of the overlapping portion of the cover body 20 are provided at corresponding positions in the space of the inside of the pipe body 10 that is not occupied by the support rib 22 in the state where the cover body 20 is fitted over the outside of the pipe body 10, and abut against corresponding outer wall surface areas of the outer wall surface 21.

The deformation of the welding surface of the pipe body can be effectively reduced by arranging the supporting ribs in the pipe body, but the welding surface can generate certain deformation due to the lack of support at the position where the supporting ribs are not arranged, the bulge is arranged at the position corresponding to the part of the space of the pipe body, which is not occupied by the supporting ribs, on the inner surface of the cover body, the bulge is used for compensating the gap generated by the deformation of the welding surface where the supporting ribs are not arranged, so that the fitting degree of the pipe body and the cover body can be improved, and the welding quality is improved.

According to some embodiments of the present application, referring to fig. 3, a first set of protrusions 33 and a second set of protrusions 33 are provided on the first inner surface 31, the first set of protrusions 33 being located on a first inner surface area of the first inner surface 31, the second set of protrusions 33 being located on a second inner surface area of the first inner surface 31, the first inner surface area and the second inner surface area facing each other.

In the example shown in fig. 3, the first inner surface 31 of the cover 20 includes a first inner surface area and a second inner surface area that face each other. One or more protrusions 33 are provided at the first and second inner surface areas, respectively.

By arranging the protrusions on the two inner surface areas facing each other on the first inner surface, the protrusions can compensate the deformation generated on two opposite sides of the outer wall surface of the pipe, and the fitting degree of the pipe body and the cover body is improved.

According to some embodiments of the present application, referring to fig. 3, the first set of protrusions 33 and the second set of protrusions 33 comprise the same number of protrusions 33.

In the example shown in fig. 3, the same number of projections 33 are provided on the first and second inner surface areas of the first inner surface 31 facing each other, respectively.

Through setting up the arch of same quantity respectively on two interior surface areas that face each other on first internal surface, can make the compensation of protruding both sides deformation that is opposite to body outer wall surface more even, make body and lid laminate better.

According to some embodiments of the present application, referring to fig. 3, the first set of protrusions 33 and the second set of protrusions 33 are distributed mirror symmetrically to each other on the first inner surface 31.

In the example shown in fig. 3, the first inner surface area and the second inner surface area of the first inner surface 31 face each other, and the distribution positions of the projections 33 on the first inner surface area and the second inner surface area are arranged in mirror symmetry to each other.

By arranging the protrusions with the distribution positions mirror-symmetrical to each other in the two inner surface areas facing each other on the first inner surface, the protrusions can compensate the deformation of the two opposite sides of the outer wall surface of the pipe body, the pipe body and the cover body are better attached, and the welding quality is improved.

According to some embodiments of the present application, referring to fig. 2 and 4, the at least one support rib 22 divides the first flow channel into a plurality of chambers 23, the cover 20 further includes a second inner surface 32 connected with the first inner surface 31, one or more stop ribs 34 are provided on the second inner surface 32, and the stop ribs 34 protrude from the second inner surface 32 to protrude into respective chambers 23 of the plurality of chambers 23.

In the example shown in fig. 2 and 4, one or more stop ribs 34 are provided on the second inner surface 32 of the cover 20 that may extend toward the interior of the tube. In some embodiments, a plurality of stop ribs 34, e.g., five, six, eight, etc., are provided on the second inner surface 32 of the cover 20. A stop rib 34 may be provided for each chamber 23 inside the tube. In some embodiments, the plurality of stop bars 34 may be uniformly disposed on the second inner surface 32.

It should also be appreciated that while only one protrusion 33 is shown in fig. 4, this is merely illustrative and that in other embodiments, more protrusions 33 may be provided.

Through being provided with one or more spacing muscle on the end cover for when lid and body assembly, can improve the laminating degree of lid and body with the body joint between one or more spacing muscle and first internal surface, thereby improve the connection reliability.

According to some embodiments of the present application, referring to fig. 1, the cooling assembly 100 includes two covers 20 for being respectively sleeved on two ends of the tube 10.

In the example shown in fig. 1, two covers 20 are provided to be respectively sleeved with two ends of the pipe body 10 to realize the flow of fluid in the cooling assembly.

Through respectively with the both ends of body with a lid connection, can make the fluid flow in cooling module, simplify the installation connected mode simultaneously, reduce cost.

Embodiments of the present application provide a battery 600, referring to fig. 5, comprising at least one battery cell or battery module 61; in one example, the at least one battery cell or battery module 61 may be electrically connected to each other. The battery 600 also includes at least one cooling assembly 100, the cooling assembly 100 being thermally coupled to at least one battery cell or battery module 61.

In this context, the term "thermally coupled" essentially refers to a direct or indirect connection between two devices, wherein heat is transferred from one device to the other.

In some embodiments, a battery module includes a case and a battery cell housed within the case. Wherein, the box is used for providing accommodation space for battery monomer, and the box can adopt multiple structure. In some embodiments, the housing may be a variety of shapes, such as a cylinder, a cuboid, and the like.

In some embodiments, each battery cell may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cells may be cylindrical, flat, rectangular, or otherwise shaped.

In some embodiments, each battery module may be composed of a plurality of battery cells connected in series or parallel or a series-parallel connection, where a series-parallel connection refers to both series and parallel connection of a plurality of battery cells. In the battery 600, the number of battery modules may be plural, and the plural battery modules may be connected in series or in parallel or in series-parallel. The battery 600 may also include other structures, for example, the battery 600 may also include a bus member for making electrical connection between a plurality of battery modules.

In the example shown in fig. 5, one cooling assembly 100 is disposed at each of the front and rear sides of a plurality of battery cells or battery modules 61 connected in series, wherein the cooling assembly 100 is thermally coupled (e.g., abutted) with the surface of the battery cells or battery modules 61 to remove excessive heat generated by the operation of the battery cells or battery modules 61. The specific construction and function of the cooling assembly 100 has been specifically set forth above and, for brevity, will not be repeated here.

Embodiments of the present application provide an electrical device, which in some embodiments may include the battery 600 of the above embodiments, where the battery 600 is used to provide electrical energy. Examples of electrical devices may include, but are not limited to, electric cars, boats, spacecraft, etc. Among other things, spacecraft may include airplanes, rockets, space shuttles, spacecraft, and the like.

For convenience of description, an electric device according to an embodiment of the present application will be described as an example of the vehicle 1000.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 600 is provided in the interior of the vehicle 1000, and the battery 600 may be provided at the bottom or the head or the tail of the vehicle 1000. In some embodiments, battery 600 may be used to power vehicle 1000, for example, battery 600 may be used as an operating power source for vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, the controller 200 being configured to control the battery 600 to power the motor 300, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, battery 600 may not only serve as an operating power source for vehicle 1000, but may also serve as a driving power source for vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for vehicle 1000.

The powered device is powered using the battery 600 of the above-described embodiment that includes the cooling assembly 100. The specific construction and function of the cooling assembly 100 in the battery 600 has been specifically set forth above.

According to some embodiments of the present application, as shown in fig. 1-4, embodiments of the present application provide a cooling assembly comprising:

a harmonica tube, wherein a first flow passage for fluid to flow is formed in the harmonica tube, and a first opening communicated with the first flow passage is formed in the harmonica tube;

the current collector assembly is internally provided with a second flow passage for fluid to flow, the current collector assembly is provided with a second opening communicated with the second flow passage, and the first opening of the harmonica tube is fixedly connected to the second opening of the cover body so as to be communicated with the first flow passage and the second flow passage;

the current collector component is used for sleeving the outer side of the harmonica tube, the harmonica tube and the current collector component form an overlapping part at the sleeving part, the current collector component comprises a first inner surface extending along the peripheral direction of the overlapping part, one or more bulges are arranged on the first inner surface, and the bulges are configured to be jointed with the outer wall surface of the harmonica tube at the overlapping part.

As a possible embodiment, the harmonica pipe has a length direction X and a width direction Y, and at least one support rib is provided inside the harmonica pipe, the support ribs being distributed in sequence in the width direction Y and extending in the length direction X. The protrusions are distributed on the first inner surface along the peripheral direction so as to be abutted against corresponding outer wall surface areas of the outer wall surface, and the outer wall surface areas correspond to part of the space of the mouth organ pipe, which is not occupied by the supporting ribs.

As a possible embodiment, the at least one supporting rib divides the first flow channel into a plurality of chambers, and the current collector assembly further includes a second inner surface connected to the first inner surface, one or more limiting ribs being provided on the second inner surface, the limiting ribs protruding from the second inner surface to protrude into respective chambers of the plurality of chambers.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (10)

1. A cooling assembly (100), comprising:

a pipe body (10) having a first flow passage formed therein for fluid flow, the pipe body (10) having a first opening (11) communicating with the first flow passage;

a cover body (20) with a second flow passage for fluid to flow inside, wherein the cover body (20) forms a second opening (12) communicated with the second flow passage, and the first opening (11) of the pipe body (10) is fixedly connected to the second opening (12) of the cover body (20) so as to be communicated with the first flow passage and the second flow passage;

wherein, lid (20) are used for cup jointing in the outside of body (10), body (10) with lid (20) are in the part that cup joints forms the coincidence portion, lid (20) include along the first internal surface (31) of coincidence portion's circumferencial direction extension, be provided with one or more arch (33) on first internal surface (31), one or more arch (33) are structured with body (10) are in outer wall (21) joint at the coincidence portion.

2. The cooling module (100) according to claim 1, wherein the tube body (10) has a length direction X and a width direction Y, at least one support rib (22) is provided inside the tube body (10), and the at least one support rib (22) is sequentially distributed along the width direction Y and extends along the length direction X.

3. The cooling assembly (100) according to claim 2, wherein the one or more protrusions (33) are distributed along the circumferential direction on the first inner surface (31) to abut against a respective outer wall surface area of the outer wall surface (21) corresponding to a portion of the space of the interior of the tube body (10) not occupied by the support ribs (22).

4. A cooling module (100) according to any one of claims 1-3, wherein a first set of said protrusions (33) and a second set of said protrusions (33) are provided on said first inner surface (31), said first set of said protrusions (33) being located at a first inner surface area of said first inner surface (31), said second set of said protrusions (33) being located at a second inner surface area of said first inner surface (31), said first inner surface area and said second inner surface area facing each other.

5. The cooling assembly (100) of claim 4, wherein the first set of the protrusions (33) and the second set of the protrusions (33) comprise the same number of protrusions (33).

6. The cooling assembly (100) according to claim 4, wherein the first set of protrusions (33) and the second set of protrusions (33) are distributed mirror-symmetrically to each other on the first inner surface (31).

7. A cooling assembly (100) according to claim 2 or 3, wherein the at least one support rib (22) divides the first flow passage into a plurality of chambers (23), the cover (20) further comprising a second inner surface (32) connected to the first inner surface (31), one or more stop ribs (34) being provided on the second inner surface (32), the one or more stop ribs (34) protruding from the second inner surface (32) to project into respective ones (23) of the plurality of chambers (23).

8. A cooling module (100) according to any one of claims 1-3, wherein the cooling module (100) comprises two covers (20) for sleeving on the two ends of the tube (10) respectively.

9. A battery (600), characterized by comprising:

at least one battery cell or battery module (61); and

the cooling assembly (100) according to at least one of claims 1-8, the cooling assembly (100) being thermally coupled with the at least one battery cell or battery module (61).

10. An electrical device comprising the battery of claim 9 for providing electrical energy.