【TECHNICAL FIELD】
Cross Citation with Related Application(s)
This application claims the benefit of Korean Patent Application No. 10-2020-0134032
filed on October 16, 2020 with the Korean Intellectual Property Office, the disclosure of which is
incorporated herein by reference in its entirety.
10 The present disclosure relates to a battery pack and a device including the same, and more
particularly, to a battery pack that has a simplified cooling structure and improves space utilization,
and a device including the same.
【BACKGROUND ART】
15 In modern society, as portable devices such as a mobile phone, a notebook computer, a
camcorder and a digital camera has been daily used, the development of technologies in the fields
related to mobile devices as described above has been activated. In addition,
chargeable/dischargeable secondary batteries are used as a power source for an electric vehicle
(EV), a hybrid electric vehicle (HEV), a plug-in hybrid electric vehicle (P-HEV) and the like, in
20 an attempt to solve air pollution and the like caused by existing gasoline vehicles using fossil fuel.
Therefore, there is a growing need for development of the secondary battery.
Currently commercialized secondary batteries include a nickel cadmium battery, a nickel
hydrogen battery, a nickel zinc battery, and a lithium secondary battery. Among them, the lithium
secondary battery has come into the spotlight because they have advantages, for example, hardly
25 exhibiting memory effects compared to nickel-based secondary batteries and thus being freely
charged and discharged, and having very low self-discharge rate and high energy density.
Such lithium secondary battery mainly uses a lithium-based oxide and a carbonaceous
material as a positive electrode active material and a negative electrode active material,
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respectively. The lithium secondary battery includes an electrode assembly in which a positive
electrode plate and a negative electrode plate respectively coated with the positive electrode active
material and the negative electrode active material are disposed with a separator being interposed
between them, and a battery case which seals and accommodates the electrode assembly together
5 with an electrolyte solution.
Generally, the lithium secondary battery may be classified based on the shape of the
exterior material into a can type secondary battery in which the electrode assembly is built in a
metal can, and a pouch-type secondary battery in which the electrode assembly is built in in a
pouch of an aluminum laminate sheet.

【CLAIMS】
【Claim 1】
A battery pack comprising:
a plurality of battery modules including a battery cell stack in which a plurality of battery cells
5 are stacked, a module frame for accommodating the battery cell stack, and a cooling plate located
below the bottom portion of the module frame,
a pack frame for accommodating the plurality of battery modules,
a first cooling plate and a second cooling plate that are formed under each of a first battery
module and a second battery module stacked vertically among the plurality of battery modules,
10 and
a cooling pipe that connects the first cooling plate and the second cooling plate and is formed
along one side part of the first battery module.
【Claim 2】
The battery pack of claim 1, wherein:
15 at least one mounting member is coupled to at least one of an upper end and a lower end of
the cooling pipe.
【Claim 3】
The battery pack of claim 2, wherein:
a tapping portion to which the mounting member is mounted is formed in at least one of the
20 upper end and the lower end of the cooling pipe.
【Claim 4】
The battery pack of claim 3, wherein:
a cooling flow path through which the refrigerant flows is formed in a central portion of the
cooling pipe.
25 【Claim 5】
The battery pack of claim 4, wherein:
the cooling flow path extends along a direction in which the at least one mounting member is
arranged.
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【Claim 6】
The battery pack of claim 4,
which further comprise a first module cover covering one side part of the first battery module
and a second module cover covering one side part of the second battery module,
5 wherein the first module cover includes a first protruding cover protruding from the first
module cover to a lower end of the cooling pipe, and the second module cover includes a second
protruding cover protruding from the second module cover to an upper end of the cooling pipe,
and
the cooling pipe is located between the first protruding cover and the second protruding cover.
10 【Claim 7】
The battery pack of claim 6,
wherein the mounting member passes through the first protruding cover and is mounted on
the tapping portion, or pass through the second protruding cover and is mounted on the tapping
portion.
15 【Claim 8】
The battery pack of claim 6,
wherein a plurality of hole portions are formed in at least one of an upper end part and a lower
end part of the cooling pipe, and the refrigerant of the cooling pipe flows into the first cooling
plate and the second cooling plate through the hole portions.
20 【Claim 9】
The battery pack of claim 8,
wherein the hole portion communicates with the cooling flow path.
【Claim 10】
The battery pack of claim 8, wherein:
25 a through hole is formed in the first protruding cover portion and the second protruding cover
portion corresponding to the hole portions, and a sealing member is formed in the through hole.
【Claim 11】
The battery pack of claim 1, wherein:
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the bottom portion of the module frame constitutes an upper plate of the cooling plate, and a
bottom portion of the module frame comes into contact with the refrigerant.
【Claim 12】
The battery pack of claim 11, wherein:
5 the module frame includes a module frame protrusion portion formed by protruding the bottom
portion of the module frame, and
a through hole into which a sealing member is inserted is formed in the module frame
protrusion portion.
【Claim 13】
10 The battery pack of claim 12, wherein:
the cooling plate includes a cooling plate protrusion portion protruding from one side of the
cooling plate to a portion where the module frame protrusion is located.
【Claim 14】
A device comprising the battery pack of claim 1.