CN216488223U

CN216488223U - Battery dehumidification system, battery and power consumption device

Info

Publication number: CN216488223U
Application number: CN202123234321.2U
Authority: CN
Inventors: 胡浪超; 黄小腾; 徐晨怡; 杨海奇; 王鹏; 孙占宇
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-10
Anticipated expiration: 2031-12-21
Also published as: WO2023116421A1

Abstract

The application provides a battery dehumidification system, battery and electric installation belongs to battery technical field. Wherein, battery dehumidification system includes breather pipe, air exhaust mechanism and cooling body. Both ends of breather pipe all are used for with the box intercommunication, the breather pipe has the condensation section. The air exhaust mechanism is used for exhausting the air in the box body so as to enable the air to circularly flow between the box body and the vent pipe. The cooling mechanism is used for cooling the gas flowing through the condensing section so as to condense the gas in the condensing section. The battery with the battery dehumidification system can realize the circulation flow of gas between the box body and the vent pipe, so that the gas is condensed and liquefied when flowing through the condensation section, the water vapor in the gas is condensed into condensate, the reduction of the environmental humidity in the box body is facilitated, the phenomenon of damage or insulation failure of each electronic component in the box body of the battery in the later use process due to overlarge environmental humidity is solved, and the reduction of the potential safety hazard of the battery in the use process is facilitated.

Description

Battery dehumidification system, battery and power consumption device

Technical Field

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

Background

In recent years, new energy automobiles have a rapid development, and in the field of electric automobiles, a power battery plays an irreplaceable important role as a power source of the electric automobiles. The battery is composed of a box body and a plurality of battery monomers accommodated in the accommodating space of the box body. The battery has higher requirements on service performance, service life, safety and the like when being used as a core part of the new energy automobile. However, the conventional power battery often has the phenomenon that each electronic component is damaged or insulation between the electronic components fails in the use process, so that the battery has a large potential safety hazard in the use process and the service life of the battery is not facilitated.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a battery dehumidification system, a battery and an electric device, which can effectively reduce the potential safety hazard of the battery in the use process.

In a first aspect, an embodiment of the present application provides a battery dehumidification system, where a battery has a box body, and the battery dehumidification system includes a vent pipe, an air exhaust mechanism, and a cooling mechanism; both ends of the vent pipe are communicated with the box body, and the vent pipe is provided with a condensation section; the air pumping mechanism is used for pumping the gas in the box body so as to enable the gas to circularly flow between the box body and the vent pipe; the cooling mechanism is used for cooling the gas flowing through the condensing section so as to condense the gas in the condensing section.

In the above technical scheme, the both ends of breather pipe all communicate with the box, so that the breather pipe forms the circulation circuit that supplies the gas flow with the box, thereby can realize gas circulation flow between box and breather pipe when extracting the gas in the box through the mechanism of bleeding, and cool off the condensation segment of breather pipe through cooling body, make gas meet the phenomenon that cold can produce the condensation liquefaction when flowing through the condensation segment, with the water vapor condensation in the gas becomes the condensate, circulate in proper order, and then be favorable to reducing the environmental humidity in the box, with each electronic components in the box of solution battery appear damaging or insulating inefficacy's phenomenon because of environmental humidity is too big in the later stage use, be favorable to reducing the potential safety hazard that the battery exists in the use. In addition, the battery dehumidification system with the structure collects the condensate generated after the gas is condensed in the condensation section of the vent pipe, so that the condensate generated after the gas is condensed can be effectively separated from the battery, the phenomenon that the condensate is collected in the box body of the battery is reduced, the use safety of the battery is improved, and the service life of the battery is prolonged.

In some embodiments, the cooling mechanism comprises a cooling tank; the inside formation of cooler bin is used for holding the chamber that holds of first cooling medium, and the condensation segment is located and holds the intracavity.

In above-mentioned technical scheme, cooling body is provided with the cooler bin, through setting up the chamber that holds that is used for holding first coolant in the cooler bin, and sets up the condensation segment of breather pipe in the intracavity that holds of cooler bin to can improve the cooling effect of cooling body to the condensation segment, with the condensation capacity of the gaseous of reinforcing flow through condensation segment.

In some embodiments, the condensation section extends in an S-shape within the receiving cavity.

In the technical scheme, the condensing section is set to be of the S-shaped structure, so that the flowing stroke of gas in the condensing section can be effectively prolonged, the time of gas flowing through the condensing section is greatly prolonged, the condensing effect of the gas flowing through the condensing section is favorably improved, and the dehumidifying capacity of the battery dehumidifying system for the gas in the box body of the battery is improved.

In some embodiments, the snorkel further comprises an air egress section and an air ingress section; one end of the air outlet section is communicated with the box body, the other end of the air outlet section is communicated with the condensing section, and the air outlet section is used for guiding the gas in the box body into the condensing section; one end and the condensing section intercommunication of the section of admitting air, the other end of the section of admitting air be used for with the box intercommunication, the section of admitting air is used for in the gaseous guide box with the condensing section, air exhaust mechanism sets up on the section of admitting air.

In the above technical scheme, the section of admitting air is used for leading the gas in the condensation segment to the box in, that is to say, the gas in the section of admitting air is for flowing through the gas after the condensation segment carries out the condensation, through setting up air exhaust mechanism on the section of admitting air to make the gas through air exhaust mechanism have already flowed through the condensation and have passed through, thereby can reduce the damage that the great gas of humidity constitutes to the air extractor, and then be favorable to prolonging air exhaust mechanism's life.

In some embodiments, the battery dehumidification system further comprises a liquid trap; the liquid collector is connected with the condensing section and is used for collecting condensate generated by condensation of the gas in the condensing section.

In the technical scheme, the liquid collector is connected to the condensation section, so that the liquid collector can recover condensate produced by condensing gas in the condensation section, the condensate in the condensation section can be effectively relieved, the risk that the condensation section is blocked by the condensate is reduced, and normal operation of the battery dehumidification system is guaranteed.

In some embodiments, the liquid trap comprises a liquid trap tank and a liquid trap pipe; the liquid collecting box is used for collecting condensate; the liquid collecting pipe is communicated with the liquid collecting box and the condensing section and used for guiding the condensate into the liquid collecting box.

In the technical scheme, the liquid collector is provided with the liquid collecting box and the liquid collecting pipe, the liquid collecting box is communicated with the condensation section through the liquid collecting pipe, so that the liquid collecting pipe can guide the condensate in the condensation section to the liquid collecting box, the condensate produced by condensing gas in the condensation section is convenient to collect, the liquid collector adopting the structure is simple in structure and convenient to realize, and the recovery capacity and the storage capacity of the liquid collector to the condensate can be effectively improved.

In some embodiments, the cooling mechanism includes a cooling tank, an interior of the cooling tank forming a housing chamber for housing the first cooling medium; the condensation section is including linking to each other in proper order and being located a plurality of U type portions that hold the intracavity, and the bottom of every U type portion is formed with the liquid outlet that is used for with the collector tube intercommunication.

In above-mentioned technical scheme, the condensation segment is provided with a plurality of U type portions that link to each other in proper order to can prolong the gaseous flow stroke in the condensation segment and time, and then be favorable to improving the condensation effect of gas when the flow through the condensation segment. In addition, all offer the liquid outlet that is linked together with the collector tube through the bottom with every U type portion for the collector tube can be collected the condensate that condenses in every U type portion and form, thereby the condensate of being convenient for the liquid trap in to the condensation section is retrieved, and is favorable to improving the recovery efficiency of condensate.

In some embodiments, the liquid trap further comprises a drying unit; the drying unit is arranged in the liquid collecting box and used for absorbing condensate.

In above-mentioned technical scheme, through set up the drying unit in the collecting tank to can absorb the condensate of the recovery in the collecting tank through the drying unit, thereby be favorable to improving the liquid trap and to condensate recovery ability.

In some embodiments, the battery dehumidification system further comprises a cooling tube; the cooling pipe is provided with a first cooling section and a second cooling section, the first cooling section is arranged in the box body, and the cooling pipe is used for allowing a second cooling medium to flow so as to adjust the temperature in the box body; the cooling mechanism is used for cooling the second cooling medium flowing through the second cooling section.

In the technical scheme, the battery dehumidification system is further provided with the cooling pipe, the first cooling section of the cooling pipe is arranged in the box body of the battery, the second cooling section of the cooling pipe can be cooled through the cooling mechanism, so that the temperature in the box body can be adjusted when the second cooling medium circularly flows in the cooling pipe, the temperature adjusting function in the box body of the battery can be further realized through the battery dehumidification system, the battery dehumidification system with the structure has the advantages that the ventilation pipe and the cooling pipe share one cooling mechanism, the manufacturing cost of the battery dehumidification system is favorably reduced, and the energy saving is favorably realized.

In a second aspect, an embodiment of the present application further provides a battery, which includes a battery cell, a box body, and the above battery dehumidification system; the box body is used for accommodating the battery monomer; both ends of the breather pipe are communicated with the box body.

In some embodiments, the air vent pipe has an air inlet end and an air outlet end, and the air inlet end and the air outlet end are respectively connected to two sides of the box body in the first direction.

In the technical scheme, the air inlet end and the air outlet end of the vent pipe are respectively connected to the two sides of the box body in the first direction, so that the air inlet end and the air outlet end are positioned on the two sides of the box body in the first direction, gas can circularly flow between the box body and the vent pipe conveniently, and the phenomenon of local flow of the gas in the box body can be effectively reduced through the structure.

In some embodiments, the gas inlet end and the gas outlet end are spaced apart in a second direction, the second direction being perpendicular to the first direction.

In the technical scheme, the air inlet ends and the air outlet ends which are positioned on the two sides of the first direction of the box body are arranged at intervals along the second direction, so that the overall flowability of the gas in the box body is enhanced, and the dehumidification effect in the box body can be improved.

In some embodiments, the air inlet end and the air outlet end are spaced apart in a third direction, the third direction being perpendicular to the first direction and the second direction.

In the technical scheme, the air inlet ends and the air outlet ends which are positioned on the two sides of the first direction of the box body are further arranged at intervals along the third direction, so that the air inlet ends and the air outlet ends are positioned at opposite diagonal positions of the box body, the overall flowability of the air in the box body can be further enhanced, and the dehumidification effect in the box body is further promoted.

In a third aspect, an embodiment of the present application further provides an electric device, including the above battery; the battery is used for providing electric energy.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

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

fig. 2 is an exploded view of a battery according to some embodiments of the present application;

FIG. 3 is a schematic diagram of a battery dehumidification system according to some embodiments of the present application;

FIG. 4 is a schematic structural diagram of a cooling mechanism provided in some embodiments of the present application;

FIG. 5 is a cross-sectional view of a cooling mechanism provided in some embodiments of the present application;

fig. 6 is an exploded view of a battery according to further embodiments of the present application.

Icon: 1000-a vehicle; 100-a battery; 10-a box body; 11-a first part; 12-a second part; 20-a battery cell; 30-a battery dehumidification system; 31-a breather pipe; 311-a condensation section; 3111-U-shaped portion; 3112-a liquid outlet; 312-a gas outlet section; 313-an air intake section; 314-the inlet end; 315-air outlet end; 32-a suction mechanism; 33-a cooling mechanism; 331-a cooling tank; 3311-a containment chamber; 3312-inlet; 3313-outlet; 34-a liquid trap; 341-header tank; 342-a liquid collecting pipe; 343-a drying unit; 35-a cooling tube; 351-a first cooling stage; 352-a second cooling section; 200-a controller; 300-motor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope 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 in the description of the application in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different elements and not 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 can be included in at least one embodiment of the specification. The appearances of the phrase 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 application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "attached" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The term "and/or" in this application is only one kind of association relationship describing the associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this application generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments of the present application, like reference numerals denote like parts, and a detailed description of the same parts is omitted in different embodiments for the sake of brevity. It should be understood that the thickness, length, width and other dimensions of the various components in the embodiments of the present application and the overall thickness, length, width and other dimensions of the integrated device shown in the drawings are only exemplary and should not constitute any limitation to the present application.

The appearances of "a plurality" in this application are intended to mean more than two (including two).

In the present application, the battery cell may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited in the embodiments of the present application. The battery cell may be a cylinder, a flat body, a rectangular parallelepiped, or other shapes, which is not limited in the embodiments of the present application. The battery cells are generally divided into three types in an encapsulation manner: the cylindrical battery monomer, the square battery monomer and the soft package battery monomer are also not limited in the embodiment of the application.

Reference to a battery in embodiments of the present application 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 application may include a battery module or a battery pack, etc. A battery generally includes a case for enclosing one or more battery cells or a plurality of battery modules. The box can avoid liquid or other foreign matters to influence the charging or discharging of battery monomer.

The battery cell includes a case for accommodating the electrode assembly and the electrolyte, an electrode assembly, and an electrolyte. The electrode assembly consists of a positive pole piece, a negative pole piece and an isolating membrane. The battery cell mainly depends on metal ions to move between the positive pole piece and the negative pole piece to work. The positive pole piece includes anodal mass flow body and anodal active substance layer, and anodal active substance layer coats in anodal mass flow body's surface, and the anodal mass flow body protrusion in the anodal mass flow body that has coated anodal active substance layer of uncoated anodal active substance layer, and the anodal mass flow body that does not coat anodal active substance layer is as anodal utmost point ear. Taking a lithium ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative pole piece includes negative pole mass flow body and negative pole active substance layer, and the negative pole active substance layer coats in the surface of negative pole mass flow body, and the negative pole mass flow body protrusion in the negative pole mass flow body of coating the negative pole active substance layer not coating the negative pole active substance layer, and the negative pole mass flow body of not coating the negative pole active substance layer is as negative pole utmost point ear. The material of the negative electrode collector may be copper, and the negative electrode active material may be carbon, silicon, or the like. In order to ensure that the fuse is not fused when a large current is passed, the number of the positive electrode tabs is multiple and the positive electrode tabs are stacked together, and the number of the negative electrode tabs is multiple and the negative electrode tabs are stacked together.

The material of the isolation film may be PP (polypropylene) or PE (polyethylene). In addition, the electrode assembly may have a winding structure or a lamination structure, and the embodiment of the present application is not limited thereto.

In recent years, new energy automobiles have a leap-type development, and in the field of electric automobiles, a power battery plays an irreplaceable important role as a power source of the electric automobiles. The battery is composed of a box body and a plurality of battery monomers accommodated in the accommodating space of the box body. The battery has higher requirements on service performance, service life, safety and the like when being used as a core part of the new energy automobile.

The inventor discovers that in the later use process of the battery, because the environment is more complicated, the phenomenon that vapor enters into easily appears in the box of the battery, so as to cause the environment humidity in the box of the battery to be higher, when the vapor in the box of the battery reaches a certain concentration or has a temperature difference with the inner wall of the box, the phenomenon that the vapor is liquefied often appears, a large amount of condensate is generated, because the condensate gathered in the box of the battery can bring adverse effects to the performance of each electronic component in the box and the insulation between each electronic component, thereby the phenomenon that each electronic component is damaged or the insulation between each electronic component fails is easily caused to appear in the later use process of the battery, and then the battery has great potential safety hazard in the use process, and the service life of the battery is not favorable. In the prior art, a method of arranging a drying agent or a moisture absorption sheet in a box of a battery is generally adopted, or a condenser is arranged in the box of the battery, so that water vapor in gas in the box can be liquefied after encountering the condenser and generate condensate, and the ambient humidity in the box of the battery is reduced. However, the battery adopting such a structure has a poor dehumidification effect, and the condensate liquid is also accumulated in the box body, so that the battery still has a large potential safety hazard in use, and the battery is not favorable for long-term use.

Based on the above consideration, in order to solve the problems of greater potential safety hazard and shorter service life of the battery in the later use process, the inventor has conducted extensive research and designs a battery dehumidification system, wherein the battery dehumidification system is provided with a vent pipe, an air extraction mechanism and a cooling mechanism, the vent pipe is used for being connected with a box body of the battery so that the vent pipe and the box body form a circulation loop for gas to flow, the air extraction mechanism is used for extracting gas in the box body so that other gas flows in the circulation loop, and the cooling mechanism is used for cooling gas flowing through a condensation section of the vent pipe.

In the battery that has this kind of battery dehumidification system, can extract the gas in the box through the mechanism of bleeding, in order to realize that the gas in the box circulates between box and breather pipe and cool off the condensation segment of breather pipe through cooling body, make gas meet the phenomenon that the cold can produce the condensation liquefaction when the condensation segment of flowing through, in order to become the condensate with the vapor condensation in the gas, it circulates in proper order, thereby be favorable to reducing the environment humidity in the box, in order to solve each electronic components in the box of battery because of the too big phenomenon that appears damaging or insulation failure of environment humidity in the later stage use, and then be favorable to reducing the potential safety hazard that the battery exists in the use.

In addition, the battery dehumidification system with the structure collects the condensate generated after the gas is condensed in the condensation section of the vent pipe, so that the condensate generated after the gas is condensed can be effectively separated from the battery, the phenomenon that the condensate is collected in the box body of the battery is reduced, the use safety of the battery is improved, and the service life of the battery is prolonged.

The battery disclosed in the embodiment of the present application can be used in electric devices such as vehicles, ships or aircrafts, but not limited thereto. The power supply system with the power consumption device can be composed of the battery dehumidification system, the battery and the like, so that damage or insulation failure of each electronic component of the battery can be relieved, and the use safety and the service life of the battery can be improved.

The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be but is not limited to a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like.

For convenience of description, the following embodiments take an example in which a power consuming apparatus according to an embodiment of the present application is a vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present disclosure. The vehicle 1000 may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or a range-extended automobile, etc. The battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may serve as an operation power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to supply power to the motor 300, for example, for starting, navigation, and operational power requirements while the vehicle 1000 is traveling.

In some embodiments of the present application, the battery 100 may be used not only as an operating power source of the vehicle 1000, but also as a driving power source of the vehicle 1000, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 1000.

Referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present disclosure. The battery 100 includes a case 10 and a battery cell 20, and the case 10 has a receiving space for receiving the battery cell 20. The case 10 may take various configurations. In some embodiments, the case 10 may include a first portion 11 and a second portion 12, the first portion 11 and the second portion 12 cover each other, and the first portion 11 and the second portion 12 together define a receiving space for receiving the battery cell 20. The second part 12 may be a hollow structure with one open end, the first part 11 may be a plate-shaped structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a containing space; the first portion 11 and the second portion 12 may be both hollow structures with one side open, and the open side of the first portion 11 may cover the open side of the second portion 12. Of course, the case 10 formed by the first and second portions 11 and 12 may have various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

In the battery 100, the number of the battery cells 20 may be multiple, and the multiple battery cells 20 may be connected in series or in parallel or in series-parallel, where in series-parallel refers to both series connection and parallel connection among the multiple battery cells 20. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and the whole formed by the plurality of battery cells 20 is accommodated in the box body 10; of course, the battery 100 may also be formed by connecting a plurality of battery cells 20 in series, in parallel, or in series-parallel to form a battery module, and then connecting a plurality of battery modules in series, in parallel, or in series-parallel to form a whole, and accommodating the whole in the case 10. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for achieving electrical connection between the plurality of battery cells 20.

Wherein each battery cell 20 may be a secondary battery or a primary battery; but is not limited to, a lithium sulfur battery, a sodium ion battery, or a magnesium ion battery. The battery cell 20 may be cylindrical, flat, rectangular parallelepiped, or other shape.

Referring to fig. 2 and with further reference to fig. 3, according to some embodiments of the present disclosure, fig. 3 is a schematic structural diagram of a battery dehumidifying system 30 according to some embodiments of the present disclosure. The present application provides a battery dehumidification system 30, the battery dehumidification system 30 includes a vent pipe 31, a pumping mechanism 32, and a cooling mechanism 33. Both ends of the vent pipe 31 are used to communicate with the tank 10, and the vent pipe 31 has a condensation section 311. The gas evacuation mechanism 32 is used to evacuate the gas within the tank 10 to circulate the gas between the tank 10 and the vent pipe 31. The cooling mechanism 33 is used to cool the gas flowing through the condensing section 311 so that the gas is condensed in the condensing section 311.

Wherein, both ends of breather pipe 31 all are used for communicating with box 10, and the accommodation space intercommunication in the accommodation space in the box 10 is all had with the breather pipe 31 promptly for gas can form circulation circuit between box 10 and breather pipe 31. The cooling mechanism 33 is used to cool the gas flowing through the condensing section 311, so that the gas is condensed in the condensing section 311, that is, the cooling mechanism 33 is used to cool the condensing section 311 of the vent pipe 31, so that the gas can encounter the inner wall of the condensing section 311 with a lower temperature when flowing through the condensing section 311, so as to condense and liquefy the gas.

Can realize that gas circulation flows between box 10 and breather pipe 31 when extracting the gas in the box 10 through mechanism 32 of bleeding, and cool off the condensation segment 311 of breather pipe 31 through cooling body 33, make gas meet the phenomenon that the cold can produce the condensation liquefaction when passing through condensation segment 311, with the water vapor condensation in the gas become the condensate, circulate in proper order, and then be favorable to reducing the environmental humidity in the box 10, the phenomenon of damage or insulation failure appears because of environmental humidity is too big in the later stage use in order to solve each electronic components in box 10 of battery 100, be favorable to reducing the potential safety hazard that battery 100 exists in the use. In addition, the condensate generated by condensing the gas in the battery dehumidification system 30 with such a structure is collected in the condensation section 311 of the vent pipe 31, so that the condensate generated by condensing the gas can be effectively separated from the battery 100, the phenomenon that the condensate is collected in the box body 10 of the battery 100 is reduced, the use safety of the battery 100 is improved, and the service life of the battery 100 is prolonged.

Referring to fig. 3, and referring to fig. 4 and 5 further, fig. 4 is a schematic structural diagram of a cooling mechanism 33 provided in some embodiments of the present application, and fig. 5 is a sectional view of the cooling mechanism 33 provided in some embodiments of the present application. The cooling mechanism 33 includes a cooling box 331, an accommodation chamber 3311 for accommodating the first cooling medium is formed inside the cooling box 331, and the condensation section 311 is located inside the accommodation chamber 3311. The specific structure of the cooling mechanism 33 can be found in the related art, and is not described in detail herein.

Wherein, the cooling cabinet 331 has been seted up the entry 3312 and has been exported 3313, and entry 3312 and export 3313 all with hold chamber 3311 intercommunication, and entry 3312 and export 3313 are used for supplying first cooling medium to flow in or flow out respectively to realize that first cooling medium carries out circulating flow in holding chamber 3311, thereby can cool off the condensation segment 311 that is located holding chamber 3311 through first cooling medium.

Illustratively, the first cooling medium may be difluoromethane chloride, ammonia, freon, or the like.

By arranging the accommodating cavity 3311 for accommodating the first cooling medium in the cooling box 331 and arranging the condensation section 311 of the vent pipe 31 in the accommodating cavity 3311 of the cooling box 331, the cooling effect of the cooling mechanism 33 on the condensation section 311 can be improved, so as to enhance the condensation capacity of the gas flowing through the condensation section 311.

According to some embodiments of the present application, referring to fig. 4 and 5, the condensing section 311 extends in an S-shape inside the accommodating chamber 3311.

The condensation section 311 extends in an S-shape, that is, the condensation section 311 has an S-shaped curved structure (serpentine structure).

It should be noted that, in some embodiments, the structure of the condensation section 311 may also be a straight tube structure or a Z-shaped structure.

Through setting the condensation section 311 to the S-shaped structure, the flow stroke of the gas in the condensation section 311 can be effectively prolonged, so that the time that the gas flows through the condensation section 311 is greatly prolonged, thereby being beneficial to improving the condensation effect of the gas when the gas flows through the condensation section 311, and improving the dehumidification capacity of the battery dehumidification system 30 on the gas in the box 10 of the battery 100.

According to some embodiments of the present application, with continued reference to fig. 3, snorkel 31 further includes an air egress section 312 and an air ingress section 313. One end of the gas outlet section 312 is used for communicating with the box body 10, the other end of the gas outlet section 312 is communicated with the condensation section 311, and the gas outlet section 312 is used for guiding the gas in the box body 10 into the condensation section 311. One end of the gas inlet section 313 is communicated with the condensing section 311, the other end of the gas inlet section 313 is communicated with the box body 10, the gas inlet section 313 is used for guiding the gas in the condensing section 311 into the box body 10, and the air exhaust mechanism 32 is arranged on the gas inlet section 313.

The gas inlet section 313 is used for guiding the gas in the condensing section 311 into the box body 10, that is, the gas flowing through the gas inlet section 313 is the gas which flows through the condensing section 311 and is condensed.

Illustratively, the air-extracting mechanism 32 may be an axial-flow motor or an air-extracting pump, etc.

It should be noted that, in other embodiments, the air pumping mechanism 32 may also be disposed on the air outlet section 312.

By arranging the air pumping mechanism 32 on the air inlet section 313, the air passing through the air pumping mechanism 32 can pass through the condensation, so that the damage of the air with high humidity to the air pumping mechanism 32 can be reduced, and the service life of the air pumping mechanism 32 can be prolonged.

According to some embodiments of the present application, referring to fig. 3, 4 and 5, the battery dehumidification system 30 further includes a liquid trap 34. The liquid collector 34 is connected to the condensation section 311, and the liquid collector 34 is used for collecting condensate generated by condensation of the gas in the condensation section 311.

Through connecting liquid trap 34 on condensing section 311 to make liquid trap 34 can retrieve the condensate of gaseous condensation production in condensing section 311, thereby can effectively alleviate the condensate in condensing section 311 and pile up too much, with the risk that reduces condensing section 311 and be blockked up by the condensate, and then be favorable to guaranteeing battery dehumidification system 30's normal operating.

Alternatively, the structure of the liquid collector 34 may be various, for example, the liquid collector 34 may be a dry bag or the like disposed in the condensation section 311.

In some embodiments, the sump 34 includes a sump tank 341 and a sump pipe 342. The header tank 341 is used for collecting condensate, the header pipe 342 is communicated with the header tank 341 and the condensing section 311, and the header pipe 342 is used for guiding the condensate into the header tank 341.

The liquid collecting tank 341 is communicated with the condensing section 311 through the liquid collecting pipe 342, so that the liquid collecting pipe 342 can guide the condensate in the condensing section 311 into the liquid collecting tank 341, thereby facilitating the collection of the condensate produced by condensing gas in the condensing section 311.

According to some embodiments of the present application, please refer to fig. 5, the cooling mechanism 33 includes a cooling box 331, and a containing cavity 3311 for containing the first cooling medium is formed inside the cooling box 331. The condensation section 311 includes a plurality of U-shaped portions 3111 connected in sequence and located in the accommodating chamber 3311, and a liquid outlet 3112 for communicating with the liquid collecting tube 342 is formed at the bottom of each U-shaped portion 3111.

Wherein, because the condensation section 311 that sets up in holding chamber 3311 is the S type structure, consequently, condensation section 311 has a plurality of U-shaped portion 3111 that connect gradually, and the bottom of every U-shaped portion 3111 all communicates with the collector tube 342.

Liquid outlet 3112 that is linked together with liquid collecting pipe 342 is all seted up through the bottom with every U type portion 3111 for liquid collecting pipe 342 can collect the condensate that condenses and form in every U type portion 3111, thereby is convenient for liquid trap 34 retrieves the condensate in condensing section 311, and is favorable to improving the recovery efficiency of condensate.

According to some embodiments of the present application, continuing to refer to fig. 5, the liquid trap 34 further includes a drying unit 343. The drying unit 343 is disposed in the sump 341, and the drying unit 343 is configured to absorb the condensate.

Optionally, the drying unit 343 may be removably coupled within the sump 341 to facilitate handling or replacement of the drying unit 343 after the drying unit 343 has absorbed water too much during subsequent use.

Illustratively, the drying unit 343 is a dry pack.

By providing the drying unit 343 in the sump 341, the condensate recovered in the sump 341 can be absorbed by the drying unit 343, and the condensate recovery capability of the liquid trap 34 can be improved.

According to some embodiments of the present application, referring to fig. 3, 4 and 5, the battery dehumidification system 30 further includes a cooling pipe 35. The cooling pipe 35 has a first cooling section 351 for being disposed in the case 10 and a second cooling section 352, and the cooling pipe 35 is for flowing a second cooling medium to adjust the temperature in the case 10. The cooling mechanism 33 serves to cool the second cooling medium flowing through the second cooling section 352.

The second cooling medium in the cooling pipe 35 can circulate between the first cooling stage 351 and the second cooling stage 352, the second cooling stage 352 is disposed in the accommodating chamber 3311 of the cooling box 331 of the cooling mechanism 33, and the second cooling medium can be cooled by the cooling mechanism 33 and then flows into the first cooling stage 351 when flowing through the second cooling stage 352, so that the second cooling medium can exchange heat in the case 10, thereby adjusting the temperature in the case 10.

For example, the second cooling medium may be water or a glycol mixture, etc.

The first cooling section 351 of the cooling pipe 35 is disposed in the case 10 of the battery 100, and the second cooling section 352 of the cooling pipe 35 can be cooled by the cooling mechanism 33, so that the temperature in the case 10 can be adjusted when the second cooling medium circulates in the cooling pipe 35, and the battery dehumidification system 30 can also realize the temperature adjustment function in the case 10 of the battery 100, and the battery dehumidification system 30 having such a structure shares the cooling mechanism 33 with the vent pipe 31 and the cooling pipe 35, which is advantageous for reducing the manufacturing cost of the battery dehumidification system 30 and saving energy.

Referring to fig. 6, according to some embodiments of the present application, fig. 6 is a schematic structural diagram of a battery 100 according to some further embodiments of the present application. The application also provides a battery 100, and the battery 100 comprises a box body 10, a battery 100 and the battery dehumidification system 30 of any scheme above. The box body 10 is used for accommodating the single battery 100, and both ends of the vent pipe 31 are communicated with the box body 10.

According to some embodiments of the present application, please continue to refer to fig. 6, the vent pipe 31 of the battery dehumidification system 30 has an air inlet 314 and an air outlet 315, and the air inlet 314 and the air outlet 315 are respectively connected to two sides of the cabinet 10 in the first direction.

Illustratively, in fig. 6, the first direction is a width direction of the casing 10. Of course, in some embodiments, the first direction may also be a length direction or a height direction of the box 10.

The air inlet end 314 and the air outlet end 315 of the breather pipe 31 are respectively connected to two sides of the box body 10 in the first direction, so that the air inlet end 314 and the air outlet end 315 are positioned at two sides of the box body 10 in the first direction, thereby facilitating the circulation flow of the gas between the box body 10 and the breather pipe 31, and the phenomenon of local flow of the gas in the box body 10 can be effectively reduced through the structure.

Further, the air inlet end 314 and the air outlet end 315 are spaced in a second direction, which is perpendicular to the first direction.

The air inlet end 314 and the air outlet end 315 located at both sides of the first direction of the cabinet 10 are spaced apart from each other along the second direction, so that the overall fluidity of the air in the cabinet 10 is enhanced, and the dehumidification effect in the cabinet 10 can be improved.

Further, the inlet terminal 314 and the outlet terminal 315 are spaced apart in a third direction, which is perpendicular to the first direction and the second direction.

The air inlet end 314 and the air outlet end 315 located at two sides of the first direction of the box body 10 are further arranged at intervals along the third direction, so that the air inlet end 314 and the air outlet end 315 are located at opposite diagonal positions of the box body 10, thereby further enhancing the overall fluidity of the air in the box body 10, and further being beneficial to further improving the dehumidification effect in the box body 10.

According to some embodiments of the present application, the present application further provides an electric device, which includes the battery 100 of any one of the above aspects, and the battery 100 is used for providing electric energy for the electric device.

The powered device may be any of the aforementioned devices or systems that employ battery 100.

According to some embodiments of the present application, referring to fig. 3-5, the present application provides a battery dehumidification system 30, the battery dehumidification system 30 including a vent pipe 31, a suction mechanism 32, a cooling mechanism 33, a liquid trap 34, and a cooling pipe 35. Both ends of the vent pipe 31 are used to communicate with the box body 10 of the battery 100, and the vent pipe 31 has an air outlet section 312, a condensation section 311 and an air inlet section 313 which are communicated in sequence. A gas pumping mechanism 32 is provided on the gas intake section 313, and the gas pumping mechanism 32 is used for pumping the gas in the box body 10 so as to circulate the gas between the box body 10 and the gas vent pipe 31. The cooling mechanism 33 has a cooling box 331, the cooling box 331 has a containing cavity 3311 for containing a first cooling medium therein, the condensation section 311 is disposed in the containing cavity 3311, and the condensation section 311 extends in an S-shape. The liquid trap 34 includes a liquid trap tank 341, a liquid trap pipe 342, and a drying unit 343, the drying unit 343 for absorbing condensed water inside the liquid trap tank 341 is communicated with each U-shaped portion 3111 of the condensation section 311 by the liquid trap pipe 342, and the liquid trap pipe 342 is used for guiding the condensed liquid produced by condensing the gas inside the condensation section 311 into the liquid trap tank 341. The cooling pipe 35 has a first cooling section 351 for being provided in the case 10 and a second cooling section 352 for being provided in the cooling tank 331 of the cooling mechanism 33, and the cooling pipe 35 is for flowing a second cooling medium to adjust the temperature in the case 10.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery dehumidification system, the battery has a box, its characterized in that includes:

the two ends of the breather pipe are both used for being communicated with the box body, and the breather pipe is provided with a condensation section;

the air pumping mechanism is used for pumping the gas in the box body so as to enable the gas to circularly flow between the box body and the vent pipe; and

a cooling mechanism for cooling the gas flowing through the condensing section to condense the gas within the condensing section.

2. The battery dehumidification system of claim 1, wherein the cooling mechanism comprises:

the cooling box, the inside formation of cooling box is used for holding the chamber that holds of first cooling medium, the condensation section is located hold the intracavity.

3. The battery dehumidification system of claim 2, wherein the condensation section extends in an S-shape within the receiving cavity.

4. The battery dehumidification system of claim 1, wherein the vent tube further comprises:

one end of the gas outlet section is communicated with the box body, the other end of the gas outlet section is communicated with the condensing section, and the gas outlet section is used for guiding the gas in the box body into the condensing section;

the gas inlet section, the one end of section of admitting air with the condensation segment intercommunication, the other end of the section of admitting air be used for with the box intercommunication, the section of admitting air be used for with in the condensation segment gaseous direction in the box, bleed mechanism set up in on the section of admitting air.

5. The battery dehumidification system of claim 1, further comprising:

the liquid collector is connected to the condensation section and is used for collecting condensate generated by condensation of the gas in the condensation section.

6. The battery dehumidification system of claim 5, wherein the liquid trap comprises:

a sump tank for collecting the condensate;

the liquid collecting pipe is communicated with the liquid collecting box and the condensation section and used for guiding the condensate into the liquid collecting box.

7. The battery dehumidifying system according to claim 6, wherein the cooling mechanism includes a cooling tank having an interior forming a housing chamber for housing the first cooling medium;

the condensation section is including consecutive and being located hold a plurality of U type portions of intracavity, every the bottom of U type portion be formed with be used for with the liquid outlet of collector tube intercommunication.

8. The battery dehumidification system of claim 6, wherein the liquid trap further comprises:

and the drying unit is arranged in the liquid collecting box and is used for absorbing the condensate.

9. The battery dehumidification system of any one of claims 1-8, further comprising:

the cooling pipe is provided with a first cooling section and a second cooling section, the first cooling section is arranged in the box body, and the cooling pipe is used for allowing a second cooling medium to flow so as to adjust the temperature in the box body;

the cooling mechanism is used for cooling the second cooling medium flowing through the second cooling section.

10. A battery, comprising:

a battery cell;

the box body is used for accommodating the battery monomer; and

the battery dehumidification system of any one of claims 1-9, wherein both ends of the vent pipe are in communication with the tank.

11. The battery of claim 10, wherein the vent tube has an inlet end and an outlet end, the inlet end and the outlet end being connected to both sides of the case in the first direction, respectively.

12. The cell defined in claim 11, wherein the gas inlet end and the gas outlet end are spaced apart in a second direction that is perpendicular to the first direction.

13. The cell defined in claim 12, wherein the gas inlet end and the gas outlet end are spaced apart in a third direction that is perpendicular to the first direction and the second direction.

14. An electrical device comprising a battery as claimed in any one of claims 10 to 13 for providing electrical energy.