CN115472986A - Battery box and battery - Google Patents

Battery box and battery Download PDF

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Publication number
CN115472986A
CN115472986A CN202211161415.8A CN202211161415A CN115472986A CN 115472986 A CN115472986 A CN 115472986A CN 202211161415 A CN202211161415 A CN 202211161415A CN 115472986 A CN115472986 A CN 115472986A
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CN
China
Prior art keywords
battery
cooling
liquid
bottom plate
box body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211161415.8A
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Chinese (zh)
Inventor
李德胜
冯守旺
刘博�
杨强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qing'an Energy Storage Technology Chongqing Co ltd
Original Assignee
Qing'an Energy Storage Technology Chongqing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qing'an Energy Storage Technology Chongqing Co ltd filed Critical Qing'an Energy Storage Technology Chongqing Co ltd
Priority to CN202211161415.8A priority Critical patent/CN115472986A/en
Publication of CN115472986A publication Critical patent/CN115472986A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a battery box body and a battery, which comprise a box body, a box cover and a ventilation structure, wherein the box body comprises a bottom plate and a side plate formed by extending from the periphery of the bottom plate in the lateral direction, the bottom plate and the side plate jointly enclose to form a containing cavity, the containing cavity is used for containing a battery module, a cooling flow channel is formed in the bottom plate, cooling liquid flows through the cooling flow channel, the cooling flow channel penetrates through the bottom plate to form a liquid inlet and a liquid outlet respectively, the liquid inlet is used for conducting the cooling liquid to flow into the cooling flow channel, and the liquid outlet is used for guiding out the cooling liquid after heat exchange; the box cover is arranged at the opening of the containing cavity; and the air exchange structure is arranged on the box cover and is used for communicating the containing cavity with the external environment. Through set up the cooling runner in the bottom plate, set up the structure of taking a breath at the case lid, so, through the coolant liquid of circulation in the cooling runner, and hold chamber and external environment gas exchange, can be fast, effectual cooling to guarantee the normal work of battery module in the box, guarantee the safety in utilization of battery, improve the life of battery.

Description

Battery box and battery
Technical Field
The invention relates to the technical field of storage batteries, in particular to a battery box body and a battery.
Background
During the use of the battery, the internal battery module generates heat, and the performance and the use safety of the battery are affected by the overhigh temperature. For guaranteeing the safety in utilization and the extreme performance of battery, the battery should have good thermal control performance, at present, generally through the inside liquid cooling structure that sets up of the box of the battery at to realize the thermal control of battery, on the one hand, during the battery equipment, need carry out the assembly of laying of liquid cooling structure in battery box inside, increase equipment work volume, and have the risk that the coolant liquid leaks and lead to battery module to damage, on the other hand, because the seal structure of box, it is not good only to adopt the liquid cooling structure to carry out the temperature control effect.
Disclosure of Invention
The invention mainly aims to provide a battery box body and a battery, and aims to solve the problems that the existing battery box body is single in heat dissipation mode and poor in internal temperature control effect.
In order to achieve the above object, the present invention provides a battery case, including:
the battery module comprises a box body and a plurality of battery modules, wherein the box body comprises a bottom plate and a side plate formed by extending from the periphery of the bottom plate in a lateral direction, the bottom plate and the side plate jointly enclose to form a containing cavity, the containing cavity is used for containing a battery module, a cooling flow channel is formed in the bottom plate, cooling liquid flows in the cooling flow channel, the cooling flow channel penetrates through the bottom plate to form a liquid inlet and a liquid outlet respectively, the liquid inlet is used for conducting the cooling liquid to flow into the cooling flow channel, and the liquid outlet is used for guiding out the cooling liquid after heat exchange;
the box cover is arranged at the opening of the containing cavity in a covering manner; and the number of the first and second groups,
and the air exchange structure is arranged on the box cover and is used for communicating the accommodating cavity with the external environment.
Optionally, a main partition plate is arranged in the cooling flow channel to define a liquid inlet flow channel and a liquid outlet flow channel on two sides of the main partition plate;
the liquid inlet flow channel and the liquid outlet flow channel are communicated, and the other ends of the liquid inlet flow channel and the liquid outlet flow channel penetrate through the bottom plate respectively to form the liquid inlet and the liquid outlet correspondingly.
Optionally, be equipped with in the feed liquor runner along a plurality of first division boards of its extending direction extension, it is a plurality of first division board is followed main partition plate thickness direction interval and relative setting, with inject the feed liquor route of a plurality of parallel arrangements in the feed liquor runner.
Optionally, a plurality of second partition plates extending along the extending direction of the liquid outlet flow channel are arranged in the liquid outlet flow channel, and the second partition plates are spaced and oppositely arranged along the thickness direction of the main partition plate, so that a plurality of liquid outlet passages arranged in parallel are defined in the liquid outlet flow channel.
Optionally, an end surface of the box cover, which is away from the box body, is concavely provided with a mounting groove, and a through hole is formed in the bottom wall of the mounting groove, so that the accommodating cavity is communicated with the external environment;
the ventilation structure includes:
the ventilation fan is arranged in the installation groove and corresponds to the through hole;
the cover plate is slidably arranged on the box cover so as to have a working position moving to a notch covering the installation groove and an avoidance position moving away from the installation groove; and the number of the first and second groups,
and the driving cylinder is arranged on the box cover, is in driving connection with the cover plate and is used for switching the cover plate between the working position and the avoiding position.
Optionally, the outer side of the bottom plate is provided with a thermal insulation coating.
Optionally, the box body is provided with two opposite mounting surfaces, and each mounting surface is provided with a limiting component;
the limiting assembly comprises two limiting parts which are arranged at intervals and oppositely, each limiting part comprises a fixed plate and a fixed bent part formed by bending the lower end part of the fixed plate, and the fixed bent part is provided with a connecting hole in a penetrating mode and used for allowing the connecting piece to penetrate through so as to fix the box body.
Optionally, each of the limiting members has a setting end deviating from the other limiting member, and the setting end is formed with a hanging portion for hanging the hook to move the box.
Optionally, the side end of the fixing plate is bent towards a direction away from the mounting surface to form the hanging part, and a through hole is formed through the hanging part for a hook to pass through; and/or the presence of a gas in the atmosphere,
one side of the fixing plate, which deviates from the mounting surface, is provided with a reinforcing part, and the reinforcing part extends to be connected with the hanging part and is used for supporting the hanging part.
Furthermore, the present invention also provides a battery including a battery case, the battery case including:
the battery module comprises a box body and a plurality of battery modules, wherein the box body comprises a bottom plate and a side plate formed by extending from the periphery of the bottom plate in a lateral direction, the bottom plate and the side plate jointly enclose to form a containing cavity, the containing cavity is used for containing a battery module, a cooling flow channel is formed in the bottom plate, cooling liquid flows in the cooling flow channel, the cooling flow channel penetrates through the bottom plate to form a liquid inlet and a liquid outlet respectively, the liquid inlet is used for conducting the cooling liquid to flow into the cooling flow channel, and the liquid outlet is used for guiding out the cooling liquid after heat exchange;
the box cover is arranged at the opening of the containing cavity in a covering manner; and (c) a second step of,
and the air exchange structure is arranged on the box cover and is used for communicating the accommodating cavity with the external environment.
In the technical scheme of the invention, the battery box body comprises a box body, a box cover and a ventilation structure, the box body comprises a bottom plate and a side plate formed by extending from the periphery of the bottom plate in the lateral direction, the bottom plate and the side plate jointly enclose to form a containing cavity, the containing cavity is used for containing a battery module, a cooling flow channel is formed in the bottom plate, cooling liquid flows in the cooling flow channel, the cooling flow channel penetrates through the bottom plate to form a liquid inlet and a liquid outlet respectively, the liquid inlet is used for conducting the cooling liquid to flow into the cooling flow channel, and the liquid outlet is used for guiding out the cooling liquid after heat exchange; the box cover is arranged at the opening of the containing cavity; and the air exchange structure is arranged on the box cover and is used for communicating the cavity with the external environment. Through set up in the bottom plate cooling runner the case lid sets up the structure of taking a breath, so, through the circulation be in coolant liquid in the cooling runner, and hold the chamber and exchange with external environment gas, can be quick, effectual cooling, thereby guarantee battery module's normal work in the box guarantees the safety in utilization of battery, improves the life of battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a battery case provided in the present invention;
FIG. 2 is a schematic structural view of the case of FIG. 1;
FIG. 3 is a schematic view of the cover of FIG. 1;
fig. 4 is a schematic structural view of the case in fig. 1 from another view angle.
The reference numbers illustrate:
reference numerals Name(s) Reference numerals Name (R)
100 Battery box 13 Containing chamber
1 Box body 2 Box cover
11 Base plate 21 Mounting groove
111 Cooling flow passage 3 Ventilation structure
111a Main partition board 31 Cover plate
112 Liquid inlet flow passage 32 Driving cylinder
112a First partition plate 4 Limiting assembly
112b Liquid inlet passage 41 Position limiting piece
113 Liquid outlet flow passage 411 Fixing plate
113a Second partition plate 412 Fixed bent part
113b Liquid outlet passage 412a Connecting hole
114 Liquid inlet 413 Setting end
115 Liquid outlet 413a Through hole
12 Side plate 5 Reinforcing part
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
During the use of the battery, the internal battery module generates heat, and the performance and the use safety of the battery are affected by the overhigh temperature. For guaranteeing the safety in utilization and the extreme performance of battery, the battery should have good thermal control performance, at present, generally through the inside liquid cooling structure that sets up of the box of the battery at to realize the thermal control of battery, on the one hand, during the battery equipment, need carry out the assembly of laying of liquid cooling structure in battery box inside, increase equipment work volume, and have the risk that the coolant liquid leaks and lead to battery module to damage, on the other hand, because the seal structure of box, it is not good only to adopt the liquid cooling structure to carry out the temperature control effect.
In view of this, the invention provides a battery box, in which the cooling flow channel is disposed in the bottom plate, and the box cover is provided with the ventilation structure, so that the temperature can be rapidly and effectively reduced by exchanging the cooling liquid flowing in the cooling flow channel and the cavity with the external ambient air, thereby ensuring the normal operation of the battery module in the box, ensuring the safety of the battery, and prolonging the service life of the battery. Fig. 1 to 4 show an embodiment of a battery case according to the present invention.
As shown in fig. 1 to fig. 3, the battery box 100 provided by the present invention includes a box body 1, a box cover 2 and a ventilation structure 3, where the box body 1 includes a bottom plate 11 and a side plate 12 formed by extending laterally from a periphery of the bottom plate 11, the bottom plate 11 and the side plate 12 together enclose a cavity 13, the cavity 13 is used for accommodating a battery module, a cooling flow channel 111 is formed in the bottom plate 11, cooling liquid flows through the cooling flow channel 111, the cooling flow channel 111 penetrates through the bottom plate 11 to form a liquid inlet 114 and a liquid outlet 115, respectively, the liquid inlet 114 is used for guiding the cooling liquid to flow into the cooling flow channel 111, and the liquid outlet 115 is used for guiding out the cooling liquid after heat exchange; the box cover 2 is arranged at the opening of the containing cavity 13 in a covering manner; the ventilation structure 3 is arranged on the box cover 2 and is used for communicating the cavity 13 with the external environment.
In the technical scheme of the invention, a battery box 100 comprises a box body 1, a box cover 2 and a ventilation structure 3, wherein the box body 1 comprises a bottom plate 11 and a side plate 12 formed by extending from the periphery of the bottom plate 11 in a lateral direction, the bottom plate 11 and the side plate 12 jointly enclose to form a cavity 13, the cavity 13 is used for accommodating a battery module, a cooling flow channel 111 is formed in the bottom plate 11, cooling liquid flows through the cooling flow channel 111, the cooling flow channel 111 penetrates through the bottom plate 11 to form a liquid inlet 114 and a liquid outlet 115 respectively, the liquid inlet 114 is used for guiding the cooling liquid to flow into the cooling flow channel 111, and the liquid outlet 115 is used for guiding out the cooling liquid after heat exchange; the box cover 2 is arranged at the opening of the containing cavity 13 in a covering manner; and the ventilation structure 3 is arranged on the box cover 2 and is used for communicating the cavity 13 with the external environment. Through set up in bottom plate 11 cooling runner 111 case lid 2 sets up ventilation structure 3, so, through the circulation be in cooling liquid in cooling runner 111, and hold chamber 13 and external environment gas exchange, can be fast, effectual cooling, thereby guarantee the normal work of battery module in box 1 guarantees the safety in utilization of battery, improves the life of battery.
In this embodiment, as shown in fig. 4, a main partition plate 111a is disposed in the cooling flow passage 111 to define a liquid inlet flow passage 112 and a liquid outlet flow passage 113 on two sides of the main partition plate 111 a; one end of the liquid inlet channel 112 and one end of the liquid outlet channel 113 are connected, and the other ends of the liquid inlet channel and the liquid outlet channel penetrate through the bottom plate 11, so that the liquid inlet 114 and the liquid outlet 115 are correspondingly formed. Through in cooling channel 111 sets up main baffle 111a to form mutual intercommunication the feed liquor runner 112 with go out liquid runner 113, so, the coolant liquid can flow into from the inlet 114 feed liquor runner 112, and the warp go out liquid runner 113 follow liquid outlet 115, in order to guarantee the circulation flow of coolant liquid, realize the inside heat dissipation cooling of box 1.
Specifically, in the present embodiment, as shown in fig. 4, a plurality of first partition plates 112a extending in the extending direction of the liquid inlet flow passage 112 are provided in the liquid inlet flow passage 112, and the plurality of first partition plates 112a are spaced and arranged oppositely in the thickness direction of the main partition plate 111a, so as to define a plurality of liquid inlet passages 112b arranged in parallel in the liquid inlet flow passage 112. In this way, by providing a plurality of the liquid inlet passages 112b connected in parallel, the cooling liquid can be made to flow into the liquid inlet flow passage 112 uniformly, which helps to ensure uniformity of cooling.
Specifically, in the present embodiment, as shown in fig. 4, a plurality of second partition plates 113a extending along the extending direction of the liquid outlet flow passage 113 are disposed in the liquid outlet flow passage 113, and the plurality of second partition plates 113a are spaced and oppositely disposed along the thickness direction of the main partition plate 111a, so as to define a plurality of liquid outlet passages 113b disposed in parallel in the liquid outlet flow passage 113. Thus, by providing a plurality of liquid outlet passages 113b connected in parallel, the cooling liquid can uniformly flow out from the liquid outlet flow passage 113, which is helpful for ensuring the uniformity of cooling.
In this embodiment, as shown in fig. 1 and fig. 3, an end surface of the case cover 2 facing away from the case body 1 is concavely provided with a mounting groove 21, and a bottom wall of the mounting groove 21 is provided with a through hole for communicating the cavity 13 with an external environment; the ventilation structure 3 comprises a ventilation fan (not shown), a cover plate 31 and a driving cylinder 32, wherein the ventilation fan is arranged in the mounting groove 21 and corresponds to the through hole; the cover plate 31 is slidably mounted on the box cover 2 to have a working position moving to cover the notch of the mounting groove 21 and a avoiding position moving away from the mounting groove 21; the driving cylinder 32 is disposed on the box cover 2 and is in driving connection with the cover plate 31, so as to switch the cover plate 31 between the working position and the avoiding position. When the internal temperature of the box body 1 is high, the driving cylinder 32 drives the cover plate 31 to move to the avoiding position, at the moment, the ventilating fan works to enable the accommodating cavity 13 to be communicated with the external environment for ventilating, auxiliary heat dissipation is achieved, and therefore the heat dissipation speed is improved, when the internal temperature of the box body 1 is normal temperature, the ventilating fan is closed, the driving cylinder 32 drives the cover plate 32 to move to the working position, the cover plate 31 is arranged at the notch of the mounting groove 21 in a covering mode, and therefore dust and the like are prevented from entering the box body 1.
In this embodiment, the outer side of the bottom plate 11 is provided with a thermal insulation coating. Through setting up thermal barrier coating to prevent the coolant liquid in cooling channel 111 carries out the heat exchange with the external environment and heaies up, thereby guarantees the liquid cooling effect.
In this embodiment, as shown in fig. 1 and 4, the box body 1 has two opposite installation surfaces, and each installation surface is provided with a limiting component 4; the limiting component 4 includes two limiting parts 41 disposed at an interval and opposite to each other, each of the limiting parts 41 includes a fixing plate 411 and a fixing bent part 412 formed by bending the lower end of the fixing plate 411, and the fixing bent part 412 is provided with a connecting hole 412a for a connecting element to pass through so as to fix the box body 1. Through two set up respectively on the installation face spacing subassembly 4, so, battery box 100 is placed back on the battery transport frame, can wear to establish the bolt in connecting hole 412a to it is fixed with the battery transport frame, so can with box 1 is fixed with the battery transport frame, avoids in the transportation battery box 100 receives the displacement of jolting and takes place, prevents that battery package from bumping in the transportation, guarantees the security of transportation.
In this embodiment, as shown in fig. 4, each of the position-limiting members 41 has a setting end 413 away from another position-limiting member 41, and the setting end 413 is formed with a hanging portion for hanging a hook to move the box 1. Set up hang the portion of putting for the lifting hook provides hangs the point of establishing, so be convenient for drag out the battery package when the maintenance, labour saving and time saving.
In one embodiment, the side end of the fixing plate 411 is bent toward a direction away from the mounting surface to form the hanging portion, and the hanging portion is provided with a through hole 413a for a hook to pass through; in another embodiment, a reinforcing part 5 is arranged on one side of the fixing plate 411, which is away from the mounting surface, and the reinforcing part 5 extends to be connected with the hanging part for supporting the hanging part; in another embodiment, the side end of the fixing plate 411 is bent toward a direction away from the mounting surface to form the hanging portion, the hanging portion has a through hole 413a for a hook to pass through, and a reinforcing portion 5 is disposed on a side of the fixing plate 411 away from the mounting surface, the reinforcing portion 5 extends to be connected with the hanging portion for supporting the hanging portion. Specifically, in this embodiment, as shown in fig. 4, a side end of the fixing plate 411 is bent toward a direction away from the mounting surface to form the hanging portion, a through hole 413a is formed through the hanging portion for a hook to pass through, a reinforcing portion 5 is disposed on a side of the fixing plate 411 away from the mounting surface, and the reinforcing portion 5 extends to be connected with the hanging portion for supporting the hanging portion. Thus, when the battery pack is maintained, the lifting hook passes through the through hole 413a to be hung on the box body 1 so as to drag the battery pack, the reinforcing part 5 is arranged so as to improve the rigidity of the hanging part and prevent the hanging part from being deformed and damaged by stress
In addition, the invention also provides a battery, which comprises a battery box 100, and the specific structure of the battery box 100 is shown in fig. 1 to 3 with reference to the above embodiment. It can be understood that, since the battery of the present invention adopts all the technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is provided herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A battery box, characterized in that includes:
the battery module comprises a box body and a plurality of battery modules, wherein the box body comprises a bottom plate and a side plate formed by extending from the periphery of the bottom plate in a lateral direction, the bottom plate and the side plate jointly enclose to form a containing cavity, the containing cavity is used for containing a battery module, a cooling flow channel is formed in the bottom plate, cooling liquid flows in the cooling flow channel, the cooling flow channel penetrates through the bottom plate to form a liquid inlet and a liquid outlet respectively, the liquid inlet is used for conducting the cooling liquid to flow into the cooling flow channel, and the liquid outlet is used for guiding out the cooling liquid after heat exchange;
the box cover is arranged at the opening of the containing cavity in a covering manner; and the number of the first and second groups,
and the air exchange structure is arranged on the box cover and is used for communicating the accommodating cavity with the external environment.
2. The battery box body according to claim 1, wherein a main partition is provided in the cooling flow passage to define a liquid inlet flow passage and a liquid outlet flow passage on both sides of the main partition;
the liquid inlet flow passage and the liquid outlet flow passage are communicated with each other at one end, and the other ends of the liquid inlet flow passage and the liquid outlet flow passage respectively penetrate through the bottom plate to form the liquid inlet and the liquid outlet correspondingly.
3. The battery case according to claim 2, wherein a plurality of first partition plates extending in the direction of extension of the liquid inlet flow path are provided in the liquid inlet flow path, and the plurality of first partition plates are spaced apart and opposed to each other in the thickness direction of the main partition plate to define a plurality of liquid inlet passages provided in parallel in the liquid inlet flow path.
4. The battery box body as claimed in claim 2, wherein a plurality of second partition plates extending in the extending direction of the liquid outlet flow channel are provided in the liquid outlet flow channel, and the plurality of second partition plates are spaced and oppositely provided in the thickness direction of the main partition plate to define a plurality of liquid outlet passages arranged in parallel in the liquid outlet flow channel.
5. The battery box body as claimed in claim 1, wherein an end face of the box cover facing away from the box body is concavely provided with a mounting groove, and a through hole is formed in the bottom wall of the mounting groove to communicate the accommodating cavity with the external environment;
the ventilation structure includes:
the ventilation fan is arranged in the installation groove and corresponds to the through hole;
the cover plate is slidably arranged on the box cover and provided with a working position which moves to a notch covering the mounting groove and an avoiding position far away from the mounting groove; and (c) a second step of,
and the driving cylinder is arranged on the box cover, is in driving connection with the cover plate and is used for switching the cover plate between the working position and the avoiding position.
6. The battery box of claim 1, wherein the outer side of the bottom plate is provided with a thermal barrier coating.
7. The battery box body of claim 1, wherein the box body has two oppositely arranged mounting surfaces, and each mounting surface is provided with a limiting component;
the limiting assembly comprises two limiting parts which are arranged at intervals and oppositely, each limiting part comprises a fixed plate and a fixed bent part formed by bending the lower end part of the fixed plate, and the fixed bent part is provided with a connecting hole in a penetrating mode and used for allowing the connecting piece to penetrate through so as to fix the box body.
8. The battery box as claimed in claim 7, wherein each of the position-limiting members has a setting end away from the other position-limiting member, and the setting end is formed with a hanging portion for hanging a hook thereon to move the box.
9. The battery box body as claimed in claim 8, wherein the side end of the fixing plate is bent away from the mounting surface to form the hanging portion, and the hanging portion has a through hole for a hook to pass through; and/or the presence of a gas in the gas,
one side of the fixing plate, which deviates from the mounting surface, is provided with a reinforcing part, and the reinforcing part extends to be connected with the hanging part and is used for supporting the hanging part.
10. A battery comprising a battery case according to any one of claims 1 to 9.
CN202211161415.8A 2022-09-22 2022-09-22 Battery box and battery Pending CN115472986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211161415.8A CN115472986A (en) 2022-09-22 2022-09-22 Battery box and battery

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209658357U (en) * 2019-03-06 2019-11-19 肇庆遨优动力电池有限公司 Battery pack
CN213520117U (en) * 2020-12-03 2021-06-22 长城汽车股份有限公司 Cold drawing and battery module
WO2021253919A1 (en) * 2020-06-19 2021-12-23 深圳市飞荣达科技股份有限公司 Multi-stage liquid cooling plate for battery module
CN216213861U (en) * 2021-09-29 2022-04-05 北京胜能能源科技有限公司 Battery module, battery pack and vehicle
CN114374020A (en) * 2021-12-31 2022-04-19 中国第一汽车股份有限公司 Battery pack and vehicle with same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209658357U (en) * 2019-03-06 2019-11-19 肇庆遨优动力电池有限公司 Battery pack
WO2021253919A1 (en) * 2020-06-19 2021-12-23 深圳市飞荣达科技股份有限公司 Multi-stage liquid cooling plate for battery module
CN213520117U (en) * 2020-12-03 2021-06-22 长城汽车股份有限公司 Cold drawing and battery module
CN216213861U (en) * 2021-09-29 2022-04-05 北京胜能能源科技有限公司 Battery module, battery pack and vehicle
CN114374020A (en) * 2021-12-31 2022-04-19 中国第一汽车股份有限公司 Battery pack and vehicle with same

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