CN219591508U - Thermal management assembly, battery and power utilization device - Google Patents

Abstract

The embodiment of the utility model provides a thermal management assembly, a battery and an electric device, wherein the thermal management assembly comprises a plurality of heat exchange plates and connecting pipes, the plurality of heat exchange plates are used for exchanging heat for battery monomers, and the heat exchange plates are provided with heat exchange channels; the connecting pipe is communicated with the heat exchange channels of the at least two heat exchange plates, and the connecting pipe can conduct electricity and can electrically connect the at least two heat exchange plates. The utility model can reduce the cost of the battery.

Description

Thermal management assembly, battery and power utilization device

Technical Field

The present utility model relates to the field of battery technology, and more particularly, to a thermal management assembly, a battery, and an electrical device.

Background

Battery cells are widely used in electronic devices such as cellular phones, notebook computers, battery cars, electric vehicles, electric airplanes, electric ships, electric toy vehicles, electric toy ships, electric toy airplanes, electric tools, and the like.

In the development of battery technology, how to reduce the cost of batteries is one research direction in battery technology.

Disclosure of Invention

The utility model provides a thermal management assembly, a battery and an electric device, which can reduce the cost of the battery.

The embodiment of the utility model provides a thermal management assembly, which comprises a plurality of heat exchange plates and connecting pipes, wherein the plurality of heat exchange plates are used for exchanging heat for battery monomers, and each heat exchange plate is provided with a heat exchange channel; the connecting pipe is communicated with the heat exchange channels of the at least two heat exchange plates, and the connecting pipe can conduct electricity and can electrically connect the at least two heat exchange plates.

In the technical scheme, the connecting pipe of the embodiment of the utility model electrically connects at least two heat exchange plates, and the at least two electrically connected heat exchange plates transmit current through the parts for realizing the electrical connection in the connecting pipe, so that the leakage risk of the heat exchange plates is reduced, and the use reliability of the battery is improved. In addition, the heat exchange plate provided by the embodiment of the utility model does not need to be provided with the adaptive structure matched with different boxes, so that the standardization degree of the thermal management assembly is improved, and the manufacturing cost of the battery is reduced.

In some embodiments, the connection tube is capable of equipotential connection of at least two heat exchange plates.

In the technical scheme, the connecting pipe connects at least two heat exchange plates in an equipotential manner, so that the potential difference between adjacent heat exchange plates can be reduced, the leakage risk of the heat exchange plates is further reduced, and the use reliability of the battery is improved.

In some embodiments, the connecting tube includes an insulating tube that communicates with the heat exchange channels of the at least two heat exchange plates and a conductive member that is disposed on the insulating tube and is capable of electrically connecting the at least two heat exchange plates.

In the technical scheme, the connecting pipe is arranged to comprise the insulating pipe body and the conductive piece, the insulating pipe body plays a role of communicating the heat exchange channels of the heat exchange plates, the insulating pipe body has certain supporting capacity, and compared with the scheme of adopting the metal conductive material to make the supporting part of the connecting pipe, the weight of the whole connecting pipe can be reduced, and meanwhile, the cost of the material is reduced.

In some embodiments, at least a portion of the conductive member is disposed on an inner surface of the insulating tube.

In the technical scheme, at least part of the conductive piece is arranged on the inner surface of the insulating pipe body, the insulating pipe body can form a protective effect on the conductive piece arranged on the inner surface, the risk of corrosion or damage of the conductive piece is reduced, and the service life of the conductive piece is prolonged.

In some embodiments, the conductive member is coated on an inner surface of the insulating tube.

In the technical scheme, the conductive piece is coated on the inner surface of the insulating tube body, and the weight of the conductive piece for forming the coating layer is small, so that the weight of the thermal management assembly is not excessively increased; and the volume occupied by the connecting pipe is not excessively increased, and the energy density of the battery is improved.

In some embodiments, the conductive member is disposed on an inner surface of the insulating tube body along a circumferential direction of the tube body.

In the technical scheme, the conductive piece is arranged on the inner surface of the insulating pipe body along the circumferential direction of the insulating pipe body, namely, the conductive piece is surrounded to form an annular structure, the annular structure has higher reliability when being electrically connected with the heat exchange plate, and the insulating pipe body can be supported, so that the structural strength of the connecting pipe is improved.

In some embodiments, at least a portion of the conductive member is disposed on an outer surface of the insulating tube.

At least part of the conductive piece is arranged on the outer surface of the insulating tube body, so that the insulating tube is convenient to manufacture, check and maintain.

In some embodiments, the connection tube is a conductive member.

In the technical scheme, the connecting pipe is arranged to be a conductive piece, namely, the connecting pipe is directly made of a conductive material, so that the reliability of the electric connection between the connecting pipe and the heat exchange plate can be obviously improved.

In some embodiments, the heat exchange plate includes a plate body having a heat exchange passage and a communication pipe disposed at least one side of the plate body, the communication pipe being capable of being electrically connected to the plate body and communicating with the heat exchange passage through the communication pipe.

In the technical scheme, the heat exchange plate comprises a plate body and the communicating pipe, and the connecting pipe can be communicated with the heat exchange channel only by being communicated with the communicating pipe, so that the processing difficulty of direct communication between the connecting pipe and the plate body is reduced.

In some embodiments, the connection tube is electrically connected to the plate body through a connection tube.

In the technical scheme, the connecting pipe can be directly and electrically connected with the plate body without being connected with the plate body, namely, the connecting pipe is electrically connected on the basis of communicating the connecting pipe with the communicating pipe, so that the processing difficulty of the connecting pipe is reduced.

In some embodiments, the connection pipe includes an insulating pipe body that communicates with the connection pipes respectively provided to the two heat exchange plates, and a conductive member that is provided to the insulating pipe body and is capable of electrically connecting the two connection pipes.

In the technical scheme, the insulating tube body can reduce the material cost, so that the cost of the battery is reduced.

In some embodiments, the number of the connection pipes is plural, and both ends of the connection pipe are connected to two heat exchange plates.

In the technical scheme, the connecting pipes are arranged in a plurality, and the connecting pipes are arranged between the two heat exchange plates, so that the length adaptability of the connecting pipes is shortened, and the processing, the manufacturing, the maintenance and the disassembly of the connecting pipes are convenient.

In some embodiments, the thermal management assembly further comprises an electrically conductive connection member capable of being electrically connected to at least one heat exchange plate electrically connected to the connection tube.

In the technical scheme, at least one heat exchange plate electrically connected with the connecting pipe is electrically connected with the conductive connecting piece, so that a plurality of heat exchange plates electrically connected with the connecting pipe can be electrically connected with the box body, the risk of electric leakage and ignition between the heat exchange plates and the box body is reduced, and the reliability of the battery is improved.

The embodiment of the utility model also provides a battery, which comprises a box body, a battery monomer and the thermal management assembly, wherein the thermal management assembly is used for adjusting the temperature of the battery monomer, and the connecting pipe can be electrically connected with the box body.

The utility model also provides an electric device which comprises the battery, wherein the battery is used for providing electric energy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present utility model;

fig. 2 is a schematic structural diagram of a battery according to some embodiments of the present utility model;

FIG. 3 is a schematic diagram of a thermal management assembly according to some embodiments of the present utility model;

FIG. 4 is a schematic view of a partial structure of a heat exchanger plate of a thermal management assembly according to some embodiments of the present utility model;

FIG. 5 is a schematic illustration of a connection tube of a thermal management assembly according to some embodiments of the present utility model;

FIG. 6 is a cross-sectional view of the connection tube shown in FIG. 5;

FIG. 7 is a schematic view of a connection pipe of a thermal management assembly according to other embodiments of the present utility model;

FIG. 8 is a schematic view of a heat exchanger plate of a thermal management assembly according to other embodiments of the present utility model;

fig. 9 is an enlarged view at a in fig. 2.

Reference numerals of the specific embodiments are as follows:

1. a vehicle; 2. a battery; 3. a controller; 4. a motor; 5. a battery cell; 6. a case;

7. a thermal management assembly;

71. a heat exchange plate; 711. a heat exchange channel; 712. a plate body; 713. a communicating pipe;

72. a connecting pipe; 721. an insulating tube body; 722. a conductive member;

73. a conductive connection;

74. a total liquid inlet pipe;

75. and a total liquid outlet pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order.

Reference in the specification 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 utility model. 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.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The term "and/or" in the present utility model is merely an association relation describing the association object, and indicates that three kinds of relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present utility model, the character "/" generally indicates that the front and rear related objects are an or relationship.

In the embodiments of the present utility model, the same reference numerals denote the same components, and detailed descriptions of the same components are omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width, etc. dimensions of the various components in the embodiments of the utility model shown in the drawings, as well as the overall thickness, length, width, etc. dimensions of the integrated device, are merely illustrative and should not be construed as limiting the utility model in any way.

The term "plurality" as used herein refers to two or more (including two).

In the present utility model, the battery cells may include a lithium ion secondary battery cell, a lithium ion primary battery cell, a lithium sulfur battery cell, a sodium lithium ion battery cell, a sodium ion battery cell, or a magnesium ion battery cell, which is not limited in the embodiment of the present utility model. The battery cell may be in a cylindrical shape, a flat shape, a rectangular parallelepiped shape, or other shapes, which is not limited in this embodiment of the utility model.

Reference to a battery in accordance with an embodiment of the present utility model refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present utility model may include a battery module or a battery pack, or the like. The battery generally includes a case for enclosing one or more battery cells. The case body can prevent liquid or other foreign matters from affecting the charge or discharge of the battery cells.

The battery cell comprises an electrode assembly and electrolyte, wherein the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator. The battery cell mainly relies on metal ions to move between the positive pole piece and the negative pole piece to work. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector; the positive electrode current collector comprises a positive electrode coating area and a positive electrode lug connected to the positive electrode coating area, wherein the positive electrode coating area is coated with a positive electrode active material layer, and the positive electrode lug is not coated with the positive electrode active material layer. Taking a lithium ion battery monomer as an example, the material of the positive electrode current collector can be aluminum, the positive electrode active material layer comprises a positive electrode active material, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate and the like. The negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector; the negative electrode current collector comprises a negative electrode coating area and a negative electrode tab connected to the negative electrode coating area, wherein the negative electrode coating area is coated with a negative electrode active material layer, and the negative electrode tab is not coated with the negative electrode active material layer. The material of the anode current collector may be copper, the anode active material layer includes an anode active material, and the anode active material may be carbon or silicon, or the like. The material of the separator may be PP (polypropylene) or PE (polyethylene), etc.

The battery cell further includes a case inside which a receiving chamber for receiving the electrode assembly is formed. The case may protect the electrode assembly from the outside to prevent foreign substances from affecting the charge or discharge of the electrode assembly.

The battery can exhibit different electrical cycle performance at different ambient temperatures, and when the ambient temperature is too high or too low, the cycle performance of the battery can be reduced, even causing a reduction in the service life thereof. In order to make the new energy automobile run safely, stably and excellently, effective heat management is generally required for the battery, and the battery is controlled to always work in a proper temperature range.

The applicant sets up the thermal management subassembly in the battery, and thermal management subassembly can be used to carry out the heat transfer with the battery cell of battery to carry out effective thermal management to the battery, make battery cell work in suitable temperature range.

The thermal management assembly generally comprises a plurality of heat exchange plates provided with heat exchange channels and connecting pipes communicated with the heat exchange channels of two adjacent heat exchange plates, and the heat exchange plates exchange heat for the battery monomers, so that the risk of thermal runaway of the battery is reduced. Because the connecting pipe is usually made of non-conductive materials, when the insulation between the battery monomer and the heat exchange plates fails, the heat exchange plates have a charging risk, and the risks of electric leakage and even ignition possibly exist among a plurality of heat exchange plates, so that the safety of the battery is endangered. In the related art, a conductive foam is generally used to connect each heat exchange plate with the box body of the battery, and the heat exchange plates can be connected with the box body in an equipotential manner through the conductive foam so as to reduce the risk of electric leakage of the heat exchange plates.

However, when the conductive foam is used, different adaptive structures are required to be manufactured on the heat exchange plates for the boxes with different specifications so as to be electrically connected with the corresponding boxes, so that the heat exchange plates have more specifications, the materials are wasted, the processing is difficult, and the manufacturing cost of the battery is increased.

In view of this, the present utility model provides a thermal management assembly, which includes a plurality of heat exchange plates and a connection pipe, wherein the connection pipe is communicated with the heat exchange channels of at least two heat exchange plates, and the connection pipe is capable of conducting electricity and electrically connecting the at least two heat exchange plates, so that the leakage phenomenon of the two heat exchange plates electrically connected can be reduced, and the reliability of the battery in use is improved. In addition, the heat exchange plate provided by the embodiment of the utility model does not need to be provided with the adaptive structure matched with different boxes, so that the standardization degree of the thermal management assembly is improved, and the manufacturing cost of the battery is reduced.

The battery cell described in the embodiment of the utility model is suitable for a battery and an electric device using the battery cell.

The electric device may be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle; spacecraft including airplanes, rockets, space planes, spacecraft, and the like; the electric toy includes fixed or mobile electric toys, such as a game machine, an electric car toy, an electric ship toy, and an electric airplane toy; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railroad power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete shakers, and electric planers, among others. The embodiment of the utility model does not limit the electric device in particular.

For convenience of explanation, the following examples will be described taking an electric device as an example of a vehicle.

Fig. 1 is a schematic structural diagram of a vehicle according to some embodiments of the present utility model.

As shown in fig. 1, the interior of the vehicle 1 is provided with a battery 2, and the battery 2 may be provided at the bottom or at the head or at the tail of the vehicle 1. The battery 2 may be used for power supply of the vehicle 1, for example, the battery 2 may serve as an operating power source of the vehicle 1.

The vehicle 1 may further comprise a controller 3 and a motor 4, the controller 3 being arranged to control the battery 2 to power the motor 4, for example for operating power requirements during start-up, navigation and driving of the vehicle 1.

In some embodiments of the utility model, the battery 2 may not only serve as an operating power source for the vehicle 1, but also as a driving power source for the vehicle 1, instead of or in part instead of fuel oil or natural gas, to provide driving power for the vehicle 1.

Fig. 2 is a schematic structural diagram of a battery according to some embodiments of the present utility model.

As shown in fig. 2, the present utility model further provides a battery 2, which includes a case 6, a battery cell 5, and a thermal management assembly 7, wherein the battery cell 5 is disposed in the case 6, and the thermal management assembly 7 is used for adjusting the temperature of the battery cell 5.

In the battery 2, the number of the battery cells 5 may be one or more. If there are multiple battery cells 5, the multiple battery cells 5 may be connected in series or parallel or a series-parallel connection, where a series-parallel connection refers to that the multiple battery cells 5 are connected in series or parallel. The plurality of battery cells 5 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 5 is fixed on the bearing part; of course, a plurality of battery cells 5 may be connected in series or parallel or series-parallel to form a battery module, and then connected in series or parallel or series-parallel to form a whole and fixed on the bearing member.

The case 6 is used to house the battery cells 5, and the case 6 may have various structures. In some embodiments, the case 6 may include a cover and a housing, which are mutually covered, and together define an accommodating space for accommodating the battery cell 5. The seat body can be a hollow structure with one end open, the cover body is of a plate-shaped structure, and the cover body covers the open side of the seat body to form a box body 6 with an accommodating space; the cover body and the base body can be hollow structures with one side open, and the open side of the cover body is closed on the open side of the base body to form a box body 6 with an accommodating space. Of course, the cover and the base may be of various shapes, such as a cylinder, a rectangular parallelepiped, etc.

The thermal management assembly 7 of the present embodiment may heat the battery cells 5, or may cool the battery cells 5.

Alternatively, both sides of the battery cell 5 are respectively abutted against the thermal management assembly 7. Therefore, heat exchange can be carried out on two sides of the battery monomer 5, and the heat exchange effect of the battery monomer 5 is good.

Fig. 3 is a schematic structural diagram of a thermal management assembly according to some embodiments of the present utility model, and fig. 4 is a schematic partial structural diagram of a heat exchange plate of the thermal management assembly according to some embodiments of the present utility model.

As shown in fig. 3 and 4, the present utility model also provides a thermal management assembly 7 including a plurality of heat exchange plates 71 and connection pipes 72, the plurality of heat exchange plates 71 for exchanging heat with the battery cells 5, the heat exchange plates 71 having heat exchange channels 711; the connection pipe 72 is connected to the heat exchanging channels 711 of at least two heat exchanging plates 71, and the connection pipe 72 is capable of conducting electricity and electrically connecting the at least two heat exchanging plates 71.

The heat exchange plate 71 in the embodiment of the utility model is used for exchanging heat of the battery cells 5, and the battery cells 5 can be clamped between two adjacent heat exchange plates 71, or the heat exchange plates 71 can be arranged on one side of the battery cells 5 so as to exchange heat.

The heat exchange plate 71 according to the embodiment of the present utility model may have only one heat exchange channel 711 or may have a plurality of heat exchange channels 711 arranged in parallel. The heat exchange channel 711 may be a straight heat exchange channel 711 or a curved heat exchange channel 711.

The connecting pipe 72 of the embodiment of the utility model can be arranged between the two heat exchange plates 71 and only communicates with the heat exchange channels 711 of the two heat exchange plates 71; the heat exchange passages 711 of the plurality of heat exchange plates 71 may be simultaneously connected to each other, and the plurality of heat exchange plates 71 may be electrically connected to each other. When a plurality of heat exchange plates 71 are simultaneously connected, the connection pipe 72 may be inserted through the heat exchange plates 71 and a plurality of through holes respectively connected to the heat exchange channels 711 of the plurality of heat exchange plates 71 may be formed in the connection pipe 72.

The heat exchange plate 71 of the embodiment of the present utility model may have a liquid inlet at one end and a liquid outlet at the other end, both of which are communicated with the heat exchange channel 711. Optionally, the number of the connection pipes 72 is plural, including at least one connection pipe 72 for liquid inlet and at least one connection pipe 72 for liquid outlet. One end of the heat exchange plate 71 having a liquid inlet communicates with the connection pipe 72 for liquid inlet, and one end of the heat exchange plate 71 having a liquid outlet communicates with the connection pipe 72 for liquid outlet. Further, the thermal management assembly 7 further comprises a total liquid inlet pipe 74 and a total liquid outlet pipe 75, wherein the total liquid inlet pipe 74 is communicated with the connecting pipe 72 for liquid inlet, and the total liquid outlet pipe 75 is communicated with the connecting pipe 72 for liquid outlet. Of course, a connection pipe 72 capable of electrical connection may be provided only at one end of the heat exchange plate 71, and a pipe for communication only may be provided at the other end, without electrical connection. In this embodiment, the liquid inlet and the liquid outlet of the heat exchange plate 71 may also be disposed at the same end of the heat exchange plate 71.

Alternatively, each heat exchange plate 71 can be electrically connected through a connection pipe 72. Further alternatively, the connection pipe 72 communicates between the two heat exchange plates 71. Still further, the connection pipe 72 communicates between two adjacent heat exchange plates 71.

At least part of the heat exchange plate 71 of the embodiment of the present utility model is made of a conductive material.

The connecting pipe 72 in the embodiment of the utility model can conduct electricity, the connecting pipe 72 can be made of conductive materials, and conductors can be arranged in the connecting pipe 72 to realize the conducting function. The material with the conductive function can be conductive metal material or conductive rubber.

The connection pipe 72 and the heat exchange plate 71 in the embodiment of the present utility model are electrically connected, and specifically, the conductive portion of the connection pipe 72 and the conductive portion of the heat exchange plate 71 may be electrically connected by abutting, welding or bonding.

According to the connecting pipe 72 provided by the embodiment of the utility model, at least two heat exchange plates 71 are electrically connected, and at least two electrically connected heat exchange plates 71 transmit current through components for realizing electrical connection in the connecting pipe 72, so that the leakage risk of the heat exchange plates 71 is reduced, and the use reliability of the battery 2 is improved. In addition, the heat exchange plate 71 of the embodiment of the utility model does not need to be provided with a matching structure matched with different boxes 6, so that the standardization degree of the thermal management assembly 7 is improved, and the manufacturing cost of the battery 2 is reduced.

In some embodiments, the connection tube 72 is capable of equipotential connection of at least two heat exchange plates 71.

In the present embodiment, the equipotential connection is an electrical connection in which the electric potentials of the two heat exchange plates 71 are substantially equal.

The connecting pipe 72 connects at least two heat exchange plates 71 in an equipotential manner, so that the potential difference between the adjacent heat exchange plates 71 can be reduced, the leakage risk of the heat exchange plates 71 is further reduced, and the use reliability of the battery 2 is improved.

FIG. 5 is a schematic illustration of a connection tube of a thermal management assembly according to some embodiments of the present utility model; fig. 6 is a cross-sectional view of the connection pipe shown in fig. 5.

As shown in fig. 5 and 6, in some embodiments, the connection tube 72 includes an insulating tube 721 and a conductive member 722, the insulating tube 721 is connected to the heat exchanging channels 711 of the at least two heat exchanging plates 71, and the conductive member 722 is disposed on the insulating tube 721 and is capable of electrically connecting the at least two heat exchanging plates 71.

The insulating tube 721 of an embodiment of the present utility model is made of an insulating material, such as rubber or plastic.

The conductive member 722 of the embodiment of the utility model can be a wire, a conductive metal plate or a conductive coating.

The insulating tube 721 and the conductive member 722 may be connected by bonding, coating, interference fit, or threaded connection.

The connection pipe 72 is provided to include the insulating pipe body 721 and the conductive member 722, the insulating pipe body 721 plays a role of communicating the heat exchange passages 711 of the plurality of heat exchange plates 71, which has a certain supporting ability, and the weight of the entire connection pipe 72 can be reduced while the material cost can be reduced, compared to a scheme of using a metal conductive material for the supporting portion of the connection pipe 72.

In some embodiments, at least a portion of the conductive member 722 is disposed on the inner surface of the insulating tube 721.

Alternatively, the conductive members 722 are all disposed on the inner surface of the insulating tube 721.

At least part of the conductive element 722 is arranged on the inner surface of the insulating tube 721, the insulating tube 721 can protect the conductive element 722 arranged on the inner surface, the risk of corrosion or damage of the conductive element 722 is reduced, and the service life of the conductive element 722 is prolonged.

In some embodiments, the conductive member 722 is coated on the inner surface of the insulating tube 721.

In an embodiment of the present utility model, the conductive member 722 includes a conductive coating structure. By way of example, the conductive member 722 may include a metallic conductive layer, a conductive paste layer, or a layer structure formed of other conductive coating materials.

The conductive member 722 is coated on the inner surface of the insulating tube 721, and the conductive member 722 forming the coating layer has a small weight, so that the weight of the thermal management assembly 7 is not excessively increased; and, the volume occupied by the connection pipe 72 is not excessively increased, and the energy density of the battery 2 is improved.

In some embodiments, the conductive member 722 is disposed on the inner surface of the insulating tube 721 along the circumference of the insulating tube 721.

The conductive member 722 is disposed on the inner surface of the insulating tube 721 along the circumferential direction of the insulating tube 721, and the conductive member 722 is surrounded to form an annular structure which is maintained when separated from the insulating tube 721 and has a certain supporting capability.

The insulating tube 721 and the conductive member 722 of embodiments of the present utility model may be bonded, interference fit, or otherwise coupled.

The conductive member 722 is disposed on the inner surface of the insulating tube 721 along the circumferential direction of the insulating tube 721, that is, the conductive member 722 is surrounded to form an annular structure, which has high reliability when electrically connected with the heat exchange plate 71, and also has a supporting effect on the insulating tube 721, thereby improving the structural strength of the connecting tube 72.

FIG. 7 is a schematic view of a connection pipe of a thermal management assembly according to other embodiments of the present utility model.

As shown in fig. 7, in some embodiments, at least a portion of the conductive member 722 is disposed on the outer surface of the insulating tube 721.

Optionally, a conductive member 722 is disposed on the outer surface of the insulating tube 721.

At least a portion of the conductive member 722 is disposed on the outer surface of the insulating tube 721, which is convenient for manufacturing, inspection and maintenance.

In some embodiments, the connection tube 72 is an electrically conductive member 722.

In the embodiment of the present utility model, the connection pipe 72 is made of a conductive material. For example, the connection pipe 72 may be made of a conductive metal material or conductive rubber.

Providing the connection pipe 72 as the conductive member 722, that is, directly using a conductive material, the reliability of the electrical connection of the connection pipe 72 and the heat exchange plate 71 can be significantly increased.

Fig. 8 is a schematic view illustrating a partial structure of a heat exchange plate of a thermal management assembly according to other embodiments of the present utility model.

Referring to fig. 8, in some embodiments, the heat exchange plate 71 includes a plate body 712 and a communication pipe 713 disposed on at least one side of the plate body 712, the plate body 712 having a heat exchange channel 711, the communication pipe 72 being electrically connected to the plate body 712 and communicating with the heat exchange channel 711 through the communication pipe 713.

The communication pipe 713 of the embodiment of the present utility model may be provided at one side of the plate body 712, or may be provided at opposite sides of the plate body 712. The communication pipe 713 communicates with the heat exchange passage 711, and the connection pipe 72 communicates with the communication pipe 713.

The communication pipe 713 and the connection pipe 72 of the embodiment of the present utility model may be connected by interference fit or welding.

The connection pipe 72 of the embodiment of the present utility model may be directly electrically connected to the plate body 712, or may be electrically connected to the plate body 712 through the connection pipe 713.

At least a portion of the plate body 712 of an embodiment of the present utility model is made of a metallic conductive material. The communication pipe 713 may be made of a metal conductive material or an insulating material.

The heat exchange plate 71 is arranged to comprise the plate body 712 and the communicating pipe 713, and the connecting pipe 72 can be communicated with the heat exchange channel 711 only by communicating with the communicating pipe 713, so that the processing difficulty of directly communicating the connecting pipe 72 with the plate body 712 is reduced.

In some embodiments, connection tube 72 is electrically connected to plate body 712 through connection tube 713.

The communication pipe 713 of the embodiment of the present utility model may be made of a conductive material, or a conductor may be provided therein so that the connection pipe 72 is electrically connected to the board body 712.

Since the connection pipe 72 is in communication with the communication pipe 713, the connection pipe 72 is electrically connected to the plate body 712 through the communication pipe 713, and the connection pipe 72 can be directly electrically connected to the plate body 712 without the need of the connection pipe 72, i.e., the connection is performed on the basis of the connection pipe 72 to the communication pipe 713, thereby reducing the difficulty in processing the connection pipe 72.

In some embodiments, the connection pipe 72 includes an insulating pipe body 721 and a conductive member 722, the insulating pipe body 721 is connected to the connection pipes 713 respectively provided to the two heat exchange plates 71, and the conductive member 722 is provided to the insulating pipe body 721 and is capable of electrically connecting the two connection pipes 713.

In the embodiment of the present utility model, the insulating tube 721 is connected to the communication tubes 713 of the two heat exchange plates 71, respectively, and it is meant that the insulating tube 721 is connected to the two communication tubes 713 of the different heat exchange plates 71.

The connection pipe 72 is provided in a structure including the insulating pipe body 721 and the conductive member 722, the connection pipe 713 is electrically connected to the two connection pipes 713 by the insulating pipe body 721 and the conductive member 722, and thus, the material cost can be reduced by providing the insulating pipe body 721, thereby reducing the cost of the battery 2.

In some embodiments, the number of the connection pipes 72 is plural, and both ends of the connection pipe 72 are connected to two heat exchange plates 71.

In the present embodiment, both ends of the connection pipe 72 are connected to the two heat exchange plates 71, that is, the ends of the connection pipe 72 are in communication with the corresponding heat exchange plates 71 and can be electrically connected.

The number of the connecting pipes 72 is plural, and the connecting pipes 72 are arranged between the two heat exchange plates 71, so that the length adaptability of the connecting pipes 72 is shortened, and the processing, the manufacturing, the maintenance and the disassembly of the connecting pipes 72 are facilitated.

Fig. 9 is an enlarged view at a in fig. 2.

As shown in fig. 9, in some embodiments, the thermal management assembly 7 further comprises an electrically conductive connection member 73, the electrically conductive connection member 73 being capable of being electrically connected to at least one heat exchange plate 71 electrically connected to the connection tube 72.

In the present embodiment, the structure of the conductive connecting member 73 includes, but is not limited to, conductive foam, conductive wires, or conductive metal plates.

The conductive connection member 73 of the embodiment of the present utility model is used to electrically connect with the case 6 of the battery 2.

At least one heat exchange plate 71 electrically connected with the connection pipe 72 is electrically connected with the conductive connection member 73, so that the plurality of heat exchange plates 71 electrically connected with the connection pipe 72 can be electrically connected with the box 6, thereby reducing the risk of electric leakage and ignition between the heat exchange plates 71 and the box 6 and improving the reliability of the battery 2.

The embodiment of the utility model also provides a battery 2, which comprises a box 6, a battery unit 5 and a thermal management assembly 7, wherein the battery unit 5 is arranged in the box 6. The thermal management assembly 7 is used to regulate the temperature of the battery cells 5, and the connection pipe 72 can be electrically connected with the case 6.

In the embodiment of the present utility model, the connection pipe 72 is electrically connected to the box 6, which may be a direct connection between the two, or the connection pipe 72 may be electrically connected to the box 6 through other structures, for example, through the heat exchange plate 71 and/or the above-mentioned conductive connection member 73.

The connecting pipe 72 is electrically connected with the box body 6, so that the risk of ignition among the plurality of heat exchange plates 71 can be reduced, the risk of electric leakage ignition among the heat exchange plates 71 and the box body 6 can be reduced, and the reliability of the battery 2 is improved.

Alternatively, the connection pipe 72 is electrically connected to the case 6 through a part of the heat exchange plates 71 among the plurality of heat exchange plates 71 electrically connected.

The embodiment of the utility model also provides an electric device, which comprises a battery 2, wherein the battery 2 is used for providing electric energy.

Referring to fig. 2-9, an embodiment of the present utility model provides a thermal management assembly 7, which includes a plurality of heat exchange plates 71 and a connection pipe 72, wherein the plurality of heat exchange plates 71 are used for exchanging heat with a battery cell 5, and the heat exchange plates 71 have heat exchange channels 711; the connection pipe 72 is connected to the heat exchanging channels 711 of at least two heat exchanging plates 71, and the connection pipe 72 is capable of conducting electricity and electrically connecting the at least two heat exchanging plates 71. The connection pipe 72 includes an insulating pipe body 721 and a conductive member 722, the insulating pipe body 721 is communicated with the heat exchanging channels 711 of the at least two heat exchanging plates 71, and the conductive member 722 is provided to the insulating pipe body 721 and is capable of electrically connecting the at least two heat exchanging plates 71. The heat exchange plate 71 includes a plate body 712 and a communication pipe 713 provided at least one side of the plate body 712, the plate body 712 having a heat exchange passage 711, the communication pipe 72 being electrically connected to the plate body 712 through the communication pipe 713 and communicating with the heat exchange passage 711 through the communication pipe 713. The number of the connection pipes 72 is plural, and both ends of the connection pipes 72 are connected to the two heat exchange plates 71. The thermal management assembly 7 further comprises an electrically conductive connection member 73, the electrically conductive connection member 73 being capable of being electrically connected to at least one heat exchange plate 71 electrically connected to the connection tube 72 and for electrical connection with the housing 6 of the battery 2.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified or some technical features may be replaced with others, which may not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (15)

1. A thermal management assembly, comprising:

the heat exchange plates are used for exchanging heat for the battery monomers and are provided with heat exchange channels;

and the connecting pipes are communicated with the heat exchange channels of at least two heat exchange plates, and can conduct electricity and electrically connect the at least two heat exchange plates.

2. The thermal management assembly of claim 1, wherein the connection tube is capable of equipotential connection of at least two of the heat exchange plates.

3. The thermal management assembly of claim 1, wherein the connection tube comprises an insulating tube body in communication with the heat exchange channels of at least two of the heat exchange plates and a conductive member disposed on the insulating tube body and capable of electrically connecting at least two of the heat exchange plates.

4. A thermal management assembly according to claim 3, wherein at least part of the conductive member is disposed on an inner surface of the insulating tube body.

5. The thermal management assembly of claim 4, wherein said conductive member is coated on an inner surface of said insulating tube.

6. The thermal management assembly of claim 4, wherein the conductive member is disposed on an inner surface of the insulating tube body along a circumferential direction of the insulating tube body.

7. A thermal management assembly according to claim 3, wherein at least part of the conductive member is disposed on an outer surface of the insulating tube body.

8. The thermal management assembly of claim 1, wherein the connection tube is an electrically conductive member.

9. The thermal management assembly of any one of claims 1-8, wherein the heat exchange plate comprises a plate body having the heat exchange channels and a communication tube disposed on at least one side of the plate body, the communication tube being electrically connectable to the plate body and communicating with the heat exchange channels through the communication tube.

10. The thermal management assembly of claim 9, wherein the connection tube is electrically connected to the plate body through the connection tube.

11. The thermal management assembly according to claim 10, wherein said connection pipe comprises an insulating pipe body which communicates with said connection pipes respectively provided to two of said heat exchange plates, and a conductive member which is provided to said insulating pipe body and is capable of electrically connecting two of said connection pipes.

12. The thermal management assembly of claim 1, wherein the number of connection pipes is plural, and both ends of the connection pipes are connected to two heat exchange plates.

13. The thermal management assembly of claim 1, further comprising an electrically conductive connection member electrically connectable to at least one of the heat exchange plates electrically connected to the connection tube.

14. A battery, comprising:

a case;

the battery monomer is arranged in the box body; and

the thermal management assembly of any one of claims 1-13, for regulating the temperature of the battery cells, the connection tube being electrically connectable with the case.

15. An electrical device comprising a battery as claimed in claim 14 for providing electrical energy.