Assembling structure of battery frame and battery pack comprising same

Abstract

Disclosed are an assembly structure of a battery frame and a battery pack including the assembly structure. In an assembly structure of a battery frame, the assembly structure includes: a first protruding portion protruding from a side edge of a first frame in which a battery cell is mounted, and having an insertion hole portion formed in an extension direction of the side edge; a second raised portion disposed to correspond to the first raised portion on a second frame on which the first frame is disposed, and having a coupling hole portion corresponding to the insertion hole portion; and a fastening member having a shaft portion passing through the insertion hole portion and the coupling hole portion, in which an end portion of the shaft portion is configured to be fixed when the first frame is assembled to the second frame.

Description

Technical Field

[0001] Some aspects of embodiments of this disclosure relate to an assembly structure for a battery frame and a battery pack including the assembly structure. Background Technology

[0002] Unlike primary batteries that cannot be recharged, secondary batteries are batteries that can be repeatedly charged and discharged without damage, and can be used in electronic devices including mobile phones, PDAs, laptops, tablets, etc.

[0003] When secondary batteries are installed in electronic devices such as laptops, these secondary batteries are typically fixed inside the cover frame of the electronic device in the form of multiple individual battery cells mounted in a battery frame.

[0004] In this respect, the battery frame can be secured and assembled by separate fastening components such as fastening bolts while being placed in the cover frame of the electronic device.

[0005] Recently, as electronic devices have become relatively lighter and thinner, battery cells have also become lighter and thinner for the same capacity, leading to a trend of reduced thickness.

[0006] However, in applications where the battery frame is assembled and secured to the cover frame using fastening bolts, it may be necessary to form a fastening section of sufficient thickness to secure the fastening bolts.

[0007] Therefore, it is difficult to adapt to the trend of thinner batteries because it is difficult to reduce the thickness of the fastening parts to above the reference value.

[0008] To address this, in applications where double-sided tape is used instead of fastening bolts, the structure of the double-sided tape, which is hidden between the battery frame and the cover frame after assembly, may cause damage to individual battery cells when the battery frame and cover frame are separated.

[0009] In applications using adhesives such as double-sided tape, the thickness between the battery frame and the cover frame increases with the thickness of the adhesive, and the adhesion changes due to dimensional variations, leading to increased quality risks.

[0010] The information disclosed in this background section is only used to enhance the understanding of the background, and therefore the information discussed in this background section does not necessarily constitute prior art. Summary of the Invention

[0011] Some aspects of embodiments of this disclosure relate to an assembly structure for a battery frame and a battery pack including the assembly structure, for example, to an assembly structure for a battery frame capable of easy and precise assembly between frames and a battery pack including the assembly structure.

[0012] Some embodiments include an assembly structure for a battery frame and a battery pack including the assembly structure, which enables relatively easy and precise assembly between frames even when the thickness of the frame decreases in response to the thinning of individual battery cells.

[0013] The aspects of embodiments according to this disclosure are not limited to the features described above, and other features not mentioned in embodiments according to this disclosure may be understood through the following description and will become clearer from the disclosed embodiments. Furthermore, it will be understood that the features of embodiments according to this disclosure may be implemented through the manner indicated in the claims and combinations thereof.

[0014] According to some embodiments of this disclosure, an assembly structure for a battery frame includes: a first protrusion protruding from a side edge of a first frame on which a battery cell is mounted, and having an insertion hole portion formed in a direction extending from the side edge; a second protrusion arranged on a second frame on which the first frame is mounted, corresponding to the first protrusion, and having a connecting hole portion corresponding to the insertion hole portion; and a fastening member having a shaft portion passing through the insertion hole portion and the connecting hole portion, wherein an end portion of the shaft portion is configured to be secured when the first frame is assembled to the second frame.

[0015] According to some embodiments, the second protrusion may include: a first fixing body that closely contacts and supports the first protrusion and has a first connecting hole portion; and a second fixing body that is spaced apart from the first fixing body in the axial direction of the shaft portion and has a second connecting hole portion, wherein a cutting section may be located between the first fixing body and the second fixing body, the cutting section exposing a portion of the shaft portion to the outside.

[0016] According to some embodiments, the first protrusion may include: a first support body disposed in the cutting section, having a first insertion hole portion and in close contact with the first fixing body; and a second support body disposed in the cutting section, having a second insertion hole portion and in close contact with the second fixing body.

[0017] According to some embodiments, the distance between the first support body and the second support body can be set to a size that is 1 to 2 times the diameter of the shaft portion.

[0018] According to some embodiments, the outer surface of the second fixing body may be inclined downward, and the end portion of the shaft portion is fixed to the outer surface of the second fixing body.

[0019] According to some embodiments, the angle between the outer surface and the surface of the second frame on which the first frame is mounted can be set to 45 degrees or more.

[0020] According to some embodiments, the height of the first protrusion can be set to 2 to 3 times the diameter of the shaft portion.

[0021] According to some embodiments, the protrusion length of the first protrusion can be set to a size that is 2 to 3 times the diameter of the shaft portion.

[0022] According to some embodiments, the second protrusion may include: a first fixing body that closely contacts and supports one side surface of the first protrusion; a second fixing body that closely contacts and supports the other side surface of the first protrusion; and a third fixing body that is spaced apart from the second fixing body in the axial direction of the shaft portion, wherein a cutting section is located between the second fixing body and the third fixing body, the cutting section exposing a portion of the shaft portion to the outside.

[0023] According to some embodiments, the distance between the second fixing body and the third fixing body can be set to 1 to 2 times the diameter of the shaft portion.

[0024] According to some embodiments of this disclosure, a battery pack includes: at least one battery cell; a first frame in which the at least one battery cell is mounted and includes a first protrusion extending from a side edge of the first frame, the first protrusion having an insertion hole portion formed in a direction extending from the side edge; and a second frame on which the first frame is disposed, and includes a second protrusion corresponding to the first protrusion, the second protrusion having a connecting hole portion formed corresponding to the insertion hole portion, wherein a shaft portion of a fastening member can pass through the insertion hole portion and the connecting hole portion, and an end portion of the shaft portion can be secured to assemble the first frame to the second frame.

[0025] According to some embodiments, the second protrusion may include: a first fixing body that closely contacts and supports the first protrusion and has a first connecting hole portion; and a second fixing body that is spaced apart from the first fixing body in the axial direction of the shaft portion and has a second connecting hole portion, wherein a cutting segment may be formed between the first fixing body and the second fixing body, the cutting segment exposing a portion of the shaft portion to the outside.

[0026] According to some embodiments, the first protrusion may include: a first support body disposed in the cutting section, having a first insertion hole portion and in close contact with the first fixing body; and a second support body disposed in the cutting section, having a second insertion hole portion and in close contact with the second fixing body.

[0027] According to some embodiments, the distance between the first support body and the second support body can be set to a size that is 1 to 2 times the diameter of the shaft portion.

[0028] According to some embodiments, the outer surface of the second fixing body may be inclined downward, and the end portion of the shaft portion is fixed to the outer surface of the second fixing body.

[0029] According to some embodiments, the angle between the outer surface and the surface of the second frame on which the first frame is mounted can be set to 45 degrees or more.

[0030] According to some embodiments, the height of the first protrusion can be set to 2 to 3 times the diameter of the shaft portion.

[0031] According to some embodiments, the protrusion length of the first protrusion can be set to a size that is 2 to 3 times the diameter of the shaft portion.

[0032] According to some embodiments, the second protrusion may include: a first fixing body that closely contacts and supports one side surface of the first protrusion; a second fixing body that closely contacts and supports the other side surface of the first protrusion; and a third fixing body that is spaced apart from the second fixing body in the axial direction of the shaft portion, wherein a cutting segment may be formed between the second fixing body and the third fixing body, the cutting segment exposing a portion of the shaft portion to the outside.

[0033] According to some embodiments, the distance between the second fixing body and the third fixing body can be set to 1 to 2 times the diameter of the shaft portion. Attached Figure Description

[0034] The accompanying drawings illustrate aspects of some embodiments of this disclosure and, together with the detailed description of this disclosure provided below, are intended to provide a further understanding of the technical spirit of this disclosure. However, this disclosure should not be construed as limited to the matters described in the drawings, wherein:

[0035] Figure 1 This is an exploded perspective view of an assembly structure of a battery frame according to some embodiments and a battery pack including the assembly structure.

[0036] Figure 2 yes Figure 1 Assembly perspective;

[0037] Figure 3 This is an assembly cross-sectional view illustrating the main components of an assembly structure for a battery frame according to some embodiments;

[0038] Figures 4 to 7 This is a view illustrating an assembly process for a battery frame according to some embodiments;

[0039] Figures 8 to 11 These are views illustrating an assembly process for a battery frame according to some embodiments; and

[0040] Figure 12 This is an assembly cross-sectional view illustrating the main components of an assembly structure for a battery frame according to some embodiments. Detailed Implementation

[0041] Exemplary embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. The terms or words used in this specification and claims should not be construed as limited to their conventional or dictionary meanings, but should be interpreted in a way consistent with the spirit of this disclosure, based on the principle that the inventor can appropriately define the concepts of the terms to best interpret his / her invention. Therefore, it should be understood that the embodiments described herein and the configurations illustrated in the drawings are merely some exemplary embodiments of this disclosure and do not represent all the technical ideas of this disclosure; thus, various equivalents and modifications that can replace these embodiments can be made at the time of filing this application.

[0042] Furthermore, as used herein, the terms “comprising” and / or “including” specify the presence of said shape, quantity, step, operation, component, element and / or group thereof, but do not exclude the presence or addition of one or more other shapes, quantities, steps, operations, components, elements and / or groups thereof.

[0043] To aid in understanding this disclosure, the accompanying drawings are not shown to scale, and the dimensions of some components may be enlarged. Furthermore, similar reference numerals may indicate similar components in different embodiments.

[0044] An expression indicating that two compared objects are identical means that the two compared objects are "substantially identical." Therefore, the phrase "substantially identical" can include deviations considered low in the field, such as deviations within 5%. The statement that a parameter is uniform within a certain region can mean that the parameter is uniform in terms of average value.

[0045] Please note that although the terms "first," "second," etc., may be used in this document to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another, and unless otherwise stated herein, a first element may also be a second element.

[0046] Throughout this specification, unless otherwise stated herein, each element may be singular or plural.

[0047] It will be understood that when an element is referred to as being "above (or below)" or "on (or below)" another element, the element may be directly on the upper (or lower) surface of the other element, and may also imply the existence of other intermediate elements between the element and the other element located above (or below) the element.

[0048] It will be understood that when a component is referred to as "connected," "linked," or "attached" to another component, the component may be directly connected or linked to the other component, and other components may be "inserted" between the component and the other component, or the component may be "connected," "linked," or "attached" to the other component via other components. When a part is referred to as being electrically connected to another part, this includes not only the case where the part is directly connected to the other part, but also the case where the part is connected to the other part using other components present therein.

[0049] Throughout this specification, unless otherwise stated herein, “A and / or B” means “A or B or A and B”. The term “and / or” includes any or all combinations of the listed items. Unless otherwise stated herein, the expression “C to D” means greater than or equal to C and less than or equal to D.

[0050] The terminology used herein is for describing embodiments of this disclosure and is not intended to limit this disclosure.

[0051] Figure 1 This is an exploded perspective view of an assembly structure of a battery frame according to some embodiments and a battery pack including the assembly structure. Figure 2 yes Figure 1 Assembly perspective view. Figure 3 This is an assembly cross-sectional view illustrating the main components of an assembly structure for a battery frame according to some embodiments.

[0052] refer to Figure 1 and Figure 2 According to some embodiments of the present disclosure, the battery pack is a pack including an assembly structure of a battery frame, and according to some embodiments of the present disclosure, it may include a first frame 100, a plurality of battery cells 150 arranged in the first frame 100, and a second frame 200, wherein the first frame 100 is disposed on and assembled to the second frame 200.

[0053] According to some embodiments of the present disclosure, a battery pack may include a structure in which a first frame 100 is assembled to a second frame 200, the first frame 100 being a battery frame in which a plurality of battery cells 150 are mounted, and the second frame 200 being a load-bearing frame for an electronic device.

[0054] The battery pack according to some embodiments of the present disclosure may also refer to an electronic device, such as a notebook computer, assembled using an assembly structure according to some embodiments of the present disclosure.

[0055] refer to Figures 1 to 3 According to some embodiments of this disclosure, the battery frame assembly structure is a structure in which a first frame 100, on which a plurality of battery cells 150 are mounted, is placed on and assembled to a second frame 200.

[0056] According to some embodiments of the present disclosure, the battery frame assembly structure may include a first protrusion 110 provided on a first frame 100, a second protrusion 210 provided on a second frame 200, and fastening members 310 connected to the first protrusion 110 and the second protrusion 210.

[0057] According to some embodiments, the battery frame assembly structure is as follows: the first frame 100 is in the vertical direction ( Figure 1 The fastener 310 is placed on the inner surface of the second frame 200 in the Z-axis direction, and then fastened in the horizontal direction ( Figure 1 It is connected to the first protrusion 110 and the second protrusion 210 in the X-axis direction or Y-axis direction.

[0058] For example, according to some embodiments, the assembly structure of the battery frame is not such that the fastening member 310 is in the thickness direction of the first frame 100 and the second frame 200 ( Figure 1 The vertical direction of the Z-axis ( Figure 1 The structure is connected in the Z-axis direction, but the fastening member 310 is in the horizontal direction perpendicular to the thickness direction. Figure 1 Structures connected along the X-axis or Y-axis.

[0059] Therefore, according to some embodiments, the assembly structure of the battery frame can minimize or reduce the thickness of the first frame 100 and the second frame 200, and can accordingly accommodate the thinning of the battery cell 150.

[0060] In the battery frame assembly structure, according to some embodiments of the present disclosure, in the application where the fastening member 310 is connected to the first protrusion 110 and the second protrusion 210, a portion of the shaft portion 312 of the fastening member 310 may be exposed.

[0061] Therefore, in the battery frame assembly structure, according to some embodiments, in the application where the first frame 100 and the second frame 200 are separated after assembly, the exposed portion of the shaft portion 312 of the fastening member 310 can be cut, thereby enabling relatively simple disassembly, thus reducing the working time of the separation work and relatively improving the operability of the separation.

[0062] According to some embodiments, the first frame 100 may be a battery frame in which a plurality of battery cells 150 are installed, and the second frame 200 may be a load-bearing frame for an electronic device such as a laptop computer that uses the plurality of battery cells 150 as a power source.

[0063] According to some embodiments, a first protrusion 110 may be provided on at least an opposite side of a side edge 101 of a first frame 100, and a plurality of second protrusions 210 may be provided on a second frame 200 at a position corresponding to the first protrusion 110.

[0064] Therefore, according to some embodiments of this disclosure, the battery frame assembly structure can be in the horizontal direction ( Figure 1 These structures are arranged at multiple locations along the X-axis or Y-axis (or horizontal direction), but they have the same configuration, differing only in their location and orientation. Therefore, for convenience, the following description will focus on the horizontal direction (...). Figure 1 An assembly structure arranged on one of the side edges 101 of the first frame 100 in the X-axis direction is taken as an example.

[0065] According to some embodiments, in the assembly structure of the battery frame according to some embodiments of the present disclosure, various components can be used as fastening components 310, such that the shaft portion 312 passes through the first protrusion portion 110 and the second protrusion portion 210, and with the head portion 311 supported by the first protrusion portion 110, the end portion 313 (e.g.) Figure 6 (As shown) is fixed to the outer surface 212b of the second protrusion 210.

[0066] For example, fastening member 310 can be a bolt or a rivet.

[0067] As an example, in the case of using bolts, the end portion of the bolt can be secured in place by using a nut to fasten it to the outer surface 212b of the second protrusion 210.

[0068] As another example, when rivets are used, the end portion of the rivet can be riveted and press-fitted to the outer surface 212b of the second protrusion 210. The end portion of the rivet can also be fixed by methods such as welding.

[0069] In the following description, for convenience, the case in which a rivet is used as a fastening member 310 will be described as an example, and the fastening member 310 will be collectively referred to as a rivet.

[0070] refer to Figures 1 to 3 According to some embodiments, the first protrusion 110 can be in the horizontal direction ( Figure 1 It protrudes from the side edge 101 of the first frame 100 in the Y-axis direction.

[0071] According to some embodiments, the first protrusion 110 may be formed as a pair, which are included in the direction of the side edge 101 of the first frame 100. Figure 1 The first support body 111 and the second support body 112 are spaced apart from each other in the X-axis direction (that is, in the direction in which the side edge 101 extends).

[0072] The first support body 111 and the second support body 112 of the first protrusion 110 can be in the lateral direction ( Figure 1 Protruding from the side edge 101 of the first protrusion 110 in the Y-axis direction, with a certain length L (e.g., ... Figure 4 (as shown in the image).

[0073] Although the first support body 111 and the second support body 112 are illustrated to protrude to the same length, the embodiments according to this disclosure are not limited thereto, and the first support body 111 and the second support body 112 may also protrude to different lengths.

[0074] The protruding length L of the first support body 111 and the second support body 112 can be set to be 2 to 3 times the diameter D of the shaft portion 312 of the rivet 310.

[0075] According to some embodiments, the first support body 111 and the second support body 112 are in the vertical direction ( Figure 4 The height H in the Z-axis direction can be set to 2 to 3 times the diameter D of the shaft portion 312 of the rivet 310.

[0076] For example, when the rivet 310 is connected to the first protrusion 110, in the axial direction of the shaft portion 312 ( Figure 4 A force is generated in the X-axis direction to compress the first support body 111 and the second support body 112.

[0077] In this respect, the protruding length L and height H of the first support body 111 and the second support body 112 must be set to be at least twice the diameter D of the shaft portion 312 of the rivet 310. This is because the pressure acting on the first support body 111 and the second support body 112 can be adequately distributed and can effectively support the load.

[0078] When the protruding length L and height H of the first support body 111 and the second support body 112 are set to be more than three times the diameter D of the shaft portion 312 of the rivet 310, the load distribution effect of the first support body 111 and the second support body 112 may be increased, but the manufacturing complexity and manufacturing cost may increase, and the unnecessary increase in volume may lead to restrictions on the assembly space.

[0079] The first support body 111 and the second support body 112 of the first protrusion 210 may have a rectangular shape to be stably placed on the second frame 200 and in close contact (e.g., direct contact) with the second protrusion 210.

[0080] The first insertion hole portion 111a and the second insertion hole portion 112a can be in the direction of the side edge 101 of the first frame 100 ( Figure 1 The first support body 111 and the second support body 112 of the first protrusion 110 are respectively formed in the X-axis direction.

[0081] When the first protrusion 110 is assembled to the second protrusion 210, the shaft portion 312 of the rivet 310 can pass through the first insertion hole portion 111a of the first support body 111 and the second insertion hole portion 112a of the second support body 112.

[0082] refer to Figures 1 to 3 According to some embodiments, the second protrusion 210 may be arranged to correspond to the first protrusion 110 on the second frame 200 on which the first frame 100 is placed.

[0083] According to some embodiments, the second protrusion 210 may include a first fixing body 211 that closely contacts and supports the first supporting body 111 of the first protrusion 110, and a second fixing body 212 that closely contacts and supports the second supporting body 112 of the first protrusion 110.

[0084] The second fixing body 212 of the second protrusion 210 can be located in the axial direction of the shaft portion 312 of the rivet 310. Figure 4 The first fixing body 211 is spaced apart from the second protrusion 210 in the X-axis direction. In this respect, a cut section CS of the shaft portion 312 of the rivet 310 through its exposed space can be formed between the first fixing body 211 and the second fixing body 212.

[0085] For example, the first support body 111 and the second support body 112 of the first protrusion 110 can be arranged in the cutting section CS formed between the first fixing body 211 and the second fixing body 212 of the second protrusion 210.

[0086] For example, when the first support body 111 and the second support body 112 are arranged in the cutting section CS, the first support body 211 can be in close contact with the first fixing body 211, and the second support body 112 can be in close contact with the second fixing body 212.

[0087] Therefore, when the first support body 111 and the second support body 112 are arranged in the cutting section CS, a portion of the shaft portion 312 of the rivet 310 can be exposed through the space between the first support body 111 and the second support body 112.

[0088] Therefore, after assembling the first frame 100 and the second frame 200, with the exposed portion of the shaft portion 312 cut and the rivets 310 removed, the first frame 100 can be separated from the second frame 200 and is thus in a disassembled state.

[0089] In this respect, the distance d between the first support body 111 and the second support body 112 can be set to 1 to 2 times the diameter D of the shaft portion 312 of the rivet 310.

[0090] When the distance d between the first support body 111 and the second support body 112 is less than the diameter D of the shaft portion 312, it is difficult to cut the exposed portion of the shaft portion 312.

[0091] According to some embodiments, if the distance d between the first support body 111 and the second support body 112 exceeds twice the diameter D of the shaft portion 312, defects such as bending or damage to the exposed portion of the shaft portion 312 may occur if the head portion 311 of the rivet 310 is squeezed or the end portion 313 of the shaft portion 312 is riveted.

[0092] The first fixing body 211 and the second fixing body 212 of the second protrusion 210 may have a rectangular shape to correspond to the first supporting body 111 and the second supporting body 112 of the first protrusion 110.

[0093] The first connecting hole portion 211a and the second connecting hole portion 212a can be in the direction of the side edge 101 of the first frame 100 ( Figure 1 The first fixing body 211 and the second fixing body 212 of the second protrusion 210 are respectively formed in the X-axis direction.

[0094] When the first protrusion 110 is assembled to the second protrusion 210, the shaft portion 312 of the rivet 310 can pass through the first connecting hole portion 211a of the first fixing body 211 and the second connecting hole portion 212a of the second fixing body 212.

[0095] refer to Figure 3 The outer surface 212b of the connecting surface to which the end portion 313 of the shaft portion 312 of the rivet 310 is riveted can be formed on the outer side of the second fixing body 212. Figure 3 (To the right of the X-axis direction).

[0096] The outer surface 212b of the second fixing body 212 is the part where the end portion 313 of the shaft portion 312 of the rivet 310 is riveted, so as to form a riveting portion 313a having a shape similar to the head portion 311.

[0097] The outer surface 212b of the second fixing body 212 can be in the direction through which the shaft portion 312 of the rivet 310 passes ( Figure 3 It tilts downwards along the X-axis.

[0098] In this respect, the angle α between the outer surface 212b of the second fixed body 212 and the surface of the second frame 200 on which the first frame 100 is mounted can be 45 degrees or more.

[0099] When the angle α between the outer surface 212b of the second fixing body 212 and the aforementioned surface of the second frame 200 is less than 45 degrees, the riveted portion 313a may undergo shear fracture because in the vertical direction ( Figure 3 The force acting in the Z-axis direction is greater than the force acting in the axial direction of shaft part 312. Figure 3 The force acting in the X-axis direction.

[0100] Therefore, the angle α between the outer surface 212b of the second fixing body 212 and the aforementioned surface of the second frame 200 can be set to 45 degrees or more, such that in the axial direction of the shaft portion 312 ( Figure 3 The force acting on the riveted portion 313a in the X-axis direction is greater than the force acting in the vertical direction. Figure 3 The force acting on the riveted part 313a in the Z-axis direction.

[0101] In the following, the assembly process for a battery frame according to some embodiments of the present disclosure will be described in further detail with reference to the accompanying drawings.

[0102] Figures 4 to 7 This is a view illustrating an assembly process for a battery frame according to some embodiments.

[0103] refer to Figure 4 The first frame 100 can be arranged on the second frame 200 such that the first protrusion 110 is located on the second protrusion 210.

[0104] In this respect, the first support body 111 and the second support body 112 of the first protrusion 110 can be located between the first fixing body 211 and the second fixing body 212 of the second protrusion 210.

[0105] The first insertion hole portion 111a and the second insertion hole portion 112a can be formed in the first support body 111 and the second support body 112 of the first protrusion portion 110 respectively in the direction (X-axis direction) of the side edge 101 of the first frame 100.

[0106] In this respect, the first insertion hole portion 111a and the second insertion hole portion 112a can be linearly positioned in the axial direction (X-axis direction) of the shaft portion 312, so that the rivet 310 (see Figure 3 Shaft portion 312 (see) Figure 3 It passes through the first insertion hole portion 111a and the second insertion hole portion 112a.

[0107] The first connecting hole portion 211a and the second connecting hole portion 212a can be formed in the first fixing body 211 and the second fixing body 212 of the second protrusion portion 210 respectively in the direction (X-axis direction) of the side edge 101 of the first frame 100.

[0108] In this respect, the first connecting hole portion 211a and the second connecting hole portion 212a can also be linearly positioned in the axial direction (X-axis direction) of the shaft portion 312, so that the rivet 310 (see Figure 3 Shaft portion 312 (see) Figure 3 It passes through the first connecting hole portion 211a and the second connecting hole portion 212a.

[0109] refer to Figure 5 The first frame 100, in which the battery cell 150 is installed, can be mounted on the second frame 200 in the vertical direction (Z-axis direction).

[0110] In this respect, the first support body 111 of the first protrusion 110 can be in close contact with the first fixing body 211 of the second protrusion 210, and the second support body 112 of the first protrusion 110 can be in close contact with the second fixing body 212 of the second protrusion 210.

[0111] In this state, the first insertion hole portion 111a of the first support body 111 can communicate with the first connecting hole portion 211a of the first fixing body 211, and the second insertion hole portion 112a of the second support body 112 can communicate with the second connecting hole portion 212a of the second fixing body 212.

[0112] According to some embodiments, the first support body 111 and the second support body 112 can be arranged between the first fixing body 211 and the second fixing body 212. Thereafter, a rivet 310 can be provided between the first support body 111 and the second support body 112 (see...). Figure 6 Shaft portion 312 (see) Figure 6 The space exposed by it.

[0113] refer to Figure 6 The shaft portion 312 of the rivet 310 can be sequentially inserted into the first connecting hole portion 211a of the first fixing body 211, the first insertion hole portion 111a of the first support body 111, the second insertion hole portion 112a of the second support body 112, and the second connecting hole portion 212a of the second fixing body 212.

[0114] In this respect, the head portion 311 of the rivet 310 can be placed and supported on the outer surface of the first fixing body 211, and the end portion 313 of the shaft portion 312 of the rivet 310 can protrude outward from the outer surface 212b of the second fixing body 212.

[0115] The outer surface 212b of the second fixing body 212 can be in the direction through which the shaft portion 312 of the rivet 310 passes ( Figure 3 The second fixed body 212 is inclined downward in the X-axis direction, and the angle α between the outer surface 212b of the second fixed body 212 and the surface of the second frame 200 on which the first frame 100 is placed can be 45 degrees or more.

[0116] refer to Figure 7 The first protrusion 110 can be fixed to the second protrusion 210 by the end portion 313 of the shaft portion 312 of the riveting rivet 310, which protrudes outward from the outer surface 212b of the second fixing body 212.

[0117] In this respect, the end portion 313 of the shaft portion 312 of the rivet 310 can be riveted to form a riveted portion 313a having a shape similar to the head portion 311, and a portion of the shaft portion 312 of the rivet 310 can be exposed through the space between the first support body 111 and the second support body 112 of the first protrusion 110.

[0118] Therefore, after assembling the first frame 100 and the second frame 200, with the exposed portion of the shaft portion 312 cut and the rivets 310 removed, the first frame 100 can be separated from the second frame 200 and is thus in a disassembled state.

[0119] Next, the assembly structure of the battery frame according to some embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0120] Figures 8 to 11 This is a view illustrating an assembly process for a battery frame according to some embodiments. Figure 12 This is an assembly cross-sectional view illustrating the main components of an assembly structure for a battery frame according to some embodiments.

[0121] refer to Figures 8 to 12 According to some embodiments of this disclosure, the battery frame assembly structure is as follows: similar to the above embodiments, wherein the first frame 100' on which the battery cell 150 is mounted is placed on and assembled to the second frame 200' of the electronic device.

[0122] According to some embodiments of this disclosure, the battery frame assembly structure may include a first protrusion 110' provided on a first frame 100', a second protrusion 210' provided on a second frame 200', and rivets 310' connected to the first protrusion 110' and the second protrusion 210'.

[0123] According to some embodiments, the battery frame assembly structure can be the following assembly structure: the first frame 100' is in the vertical direction ( Figure 8 The rivets are placed on the inner surface of the second frame 200' in the Z-axis direction, and then the rivets 310' are placed in the horizontal direction ( Figure 8 It is connected to the first protrusion 110' and the second protrusion 210' in the X-axis direction or Y-axis direction.

[0124] For example, according to some embodiments, the assembly structure of the battery frame is not a fastening member, such as rivets 310' in the thickness direction serving as the first frame 100' and the second frame 200'. Figure 8 The vertical direction of the Z-axis ( Figure 8 The structure is not connected along the Z-axis direction, but rather fastening components, such as rivets 310', in the horizontal direction perpendicular to the thickness direction. Figure 8 Structures connected along the X-axis or Y-axis.

[0125] Therefore, according to some embodiments, the assembly structure of the battery frame can minimize the thickness of the first frame 100' and the second frame 200', and can accordingly accommodate the thinning of the battery cell 150.

[0126] In the battery frame assembly structure, according to some embodiments of the present disclosure, when the rivet 310' is connected to the first protrusion 110' and the second protrusion 210', a portion of the shaft portion 312' of the rivet 310' can be exposed.

[0127] Therefore, in the battery frame assembly structure, according to some embodiments, when the first frame 100' and the second frame 200' are separated after assembly, the exposed portion of the shaft portion 312' of the rivet 310' can be cut, thereby enabling simple disassembly. This reduces the working time for separation and improves the operability of separation.

[0128] According to some embodiments of this disclosure, the first frame 100' may be a battery frame in which a plurality of battery cells 150 are installed, and the second frame 200' may be a cover frame for an electronic device such as a laptop computer that uses the plurality of battery cells 150 as a power source.

[0129] According to some embodiments, a first protrusion 110' may be provided on at least opposite sides of the side edges of the first frame 100', and a plurality of second protrusions 210' may be provided on the second frame 200' at positions corresponding to the first protrusions 110'.

[0130] Therefore, according to some embodiments of this disclosure, the battery frame assembly structure can be in the horizontal direction ( Figure 8 These structures are arranged at multiple locations along the X-axis or Y-axis (or horizontal direction), but they have the same configuration, differing only in their location and orientation. Therefore, for convenience, the following description will focus on the horizontal direction (...). Figure 8 An example is an assembly structure arranged on one of the side edges of the first frame 100' in the X-axis direction.

[0131] refer to Figures 8 to 12 According to some embodiments, the first protrusion 110' can be in the horizontal direction ( Figure 8 It protrudes from the side edge of the first frame 100' in the Y-axis direction.

[0132] According to some embodiments, the first protrusion 110' may include a single support body 111' protruding from the side edge of the first frame 100'.

[0133] The supporting body 111' can protrude from the side edge of the first frame 100' to provide support in the lateral direction. Figure 8 It has a certain length L' in the Y-axis direction.

[0134] The protruding length L' of the support body 111' can be set to be 2 to 3 times the diameter D' of the shaft portion 312' of the rivet 310'.

[0135] According to some embodiments, the support body 111' is in the vertical direction ( Figure 12 The height H' in the Z-axis direction can be set to 2 to 3 times the diameter D' of the shaft portion 312' of the rivet 310'.

[0136] For example, when the rivet 310' is connected to the support body 111' of the first protrusion 110', in the axial direction of the shaft portion 312' ( Figure 12 A force is generated in the X-axis direction to compress the supporting body 111'.

[0137] In this respect, the protruding length L' and height H' of the support body 111' must be set to be at least twice the diameter D' of the shaft portion 312' of the rivet 310'. This is because the pressure acting on the support body 111' can be adequately distributed and the load can be effectively supported.

[0138] When the protruding length L' and height H' of the support body 111' exceed three times the diameter D' of the shaft portion 312' of the rivet 310', the load distribution effect of the support body 111' may increase, but the manufacturing complexity and manufacturing cost may increase, and the unnecessary increase in volume may lead to limitations on the assembly space.

[0139] The supporting body 111' of the first protrusion 110' may have a rectangular shape to be stably placed on the second frame 200' and in close contact (e.g., direct contact) with the second protrusion 210'.

[0140] The insertion hole portion 111'a can be located in the direction of the side edge of the first frame 100'. Figure 8 It is formed in the support body 111' of the first protrusion 110' in the X-axis direction.

[0141] When the first protrusion 110' is assembled to the second protrusion 210', the shaft portion 312' of the rivet 310' can pass through the first insertion hole portion 111'a of the support body 111'.

[0142] refer to Figures 8 to 12 According to some embodiments, the second protrusion 210' can be arranged to correspond to the first protrusion 110' on the second frame 200' on which the first frame 100' is placed.

[0143] According to some embodiments, the second protrusion 210' may include a first fixing body 211' that closely contacts and supports one side surface of the support body 111' of the first protrusion 110', a second fixing body 212' that closely contacts and supports the other side surface of the support body 111', and a horizontally ( Figure 8 The third fixing body 213' is spaced apart from the second fixing body 212' in the X-axis direction.

[0144] Since the third fixing body 213' of the second protrusion 210' is spaced apart from the second fixing body 212', the cutting section CS of the shaft portion 312' of the rivet 310' through its exposed space can be formed between the third fixing body 213' and the second fixing body 212'.

[0145] For example, when the support body 111' of the first protrusion 110' is inserted between the first fixing body 211' and the second fixing body 212' of the second protrusion 210', a portion of the shaft portion 312' of the rivet 310' through its exposed cutting section CS can be formed between the second fixing body 212' and the third fixing body 213' of the second protrusion 210'.

[0146] Therefore, after assembling the first frame 100' and the second frame 200', with the exposed portion of the shaft portion 312' cut off and the rivets 310' removed, the first frame 100' can be separated from the second frame 200' and is thus in a disassembled state.

[0147] In this respect, the distance d' between the second fixing body 212' and the third fixing body 213' can be set to 1 to 2 times the diameter D' of the shaft portion 312' of the rivet 310'.

[0148] When the distance d' between the second fixing body 212' and the third fixing body 213' is less than the diameter D' of the shaft portion 312', it is difficult to cut the exposed portion of the shaft portion 312'.

[0149] If the distance d' between the second fixing body 212' and the third fixing body 213' exceeds twice the diameter D' of the shaft portion 312', defects such as bending or damage to the exposed portion of the shaft portion 312' may occur if the head portion 311' of the rivet 310' is squeezed or the end portion 313' of the shaft portion 312' is riveted.

[0150] The first fixing body 211' to the third fixing body 213' of the second protrusion 210' may have a rectangular shape corresponding to the supporting body 111' of the first protrusion 110'.

[0151] The first connecting hole portion 211'a, the second connecting hole portion 212'a, and the third connecting hole portion 213'a can be in the direction of the side edge of the first frame 100' ( Figure 8 The first fixing body 211', the second fixing body 212' and the third fixing body 213' are respectively formed in the second protrusion 210' in the X-axis direction.

[0152] When the first protrusion 110' is assembled to the second protrusion 210', the shaft portion 312' of the rivet 310' can pass through the first connecting hole portion 211'a of the first fixing body 211' to reach the third connecting hole portion 213'a of the third fixing body 213'.

[0153] refer to Figure 12 The outer surface 213'b of the connecting surface to which the end portion 313' of the shaft portion 312' of the rivet 310' is riveted can be formed on the outer side of the third fixing body 213'. Figure 12 (To the right of the X-axis direction).

[0154] The outer surface 213'b of the third fixing body 213' is the part where the end portion 313' of the shaft portion 312' of the rivet 310' is riveted, so as to form a riveted portion 313'a having a shape similar to the head portion 311'.

[0155] The outer surface 213'b of the third fixing body 213' can pass through the shaft portion 312' of the rivet 310' in the direction ( Figure 12 It tilts downwards along the X-axis.

[0156] In this respect, the angle α between the outer surface 213'b of the third fixed body 213' and the surface of the second frame 200' on which the first frame 100' is mounted can be 45 degrees or more.

[0157] When the angle α between the outer surface 213'b of the third fixing body 213' and the aforementioned surface of the second frame 200' is less than 45 degrees, the riveted portion 313'a may undergo shear fracture because in the vertical direction ( Figure 12 The force acting in the Z-axis direction is greater than the force acting in the axial direction of shaft part 312'. Figure 12 The force acting in the X-axis direction.

[0158] Therefore, the angle α between the outer surface 213'b of the third fixing body 213' and the aforementioned surface of the second frame 200' can be set to 45 degrees or more, such that in the axial direction of the shaft portion 312' ( Figure 12 The force acting on the riveted portion 313'a in the X-axis direction is greater than the force acting in the vertical direction. Figure 12 The force acting on the riveted part 313'a in the Z-axis direction.

[0159] The assembly process for a battery frame according to some embodiments of the present disclosure will be described in further detail below.

[0160] refer to Figure 8The first frame 100' can be arranged on the second frame 200', such that the first protrusion 110' is located on the second protrusion 210'.

[0161] In this respect, the support body 111' of the first protrusion 110' can be inserted between the first fixing body 211' and the second fixing body 212' of the second protrusion 210', and is in close contact with and supported by the first fixing body 211' and the second fixing body 212'.

[0162] The insertion hole portion 111'a can be formed in the support body 111' of the first protrusion portion 110' in the direction of the side edge (X-axis direction) of the first frame 100'.

[0163] The first connecting hole portion 211'a to the third connecting hole portion 213'a can be formed in the first fixing body 211' to the third fixing body 213' of the second protrusion portion 210' respectively in the direction of the side edge (X-axis direction) of the first frame 100'.

[0164] In this respect, the first connecting hole portions 211'a to the third connecting hole portions 213'a can also be linearly positioned in the axial direction (X-axis direction) of the shaft portion 312', so that the rivet 310' (see Figure 10 ) shaft portion 312' (see Figure 10 It passes through the first connecting hole portion 211'a to the third connecting hole portion 213'a.

[0165] refer to Figure 9 The first frame 100', in which the battery cell 150 is installed, can be placed on the second frame 200' in the vertical direction (Z-axis direction).

[0166] In this respect, the opposite side of the support body 111' of the first protrusion 110' can be in close contact with the first fixing body 211' and the second fixing body 212' of the second protrusion 210'.

[0167] In this state, the insertion hole portion 111'a of the support body 111' can communicate with the first connecting hole portion 211'a of the first fixing body 211' and the second connecting hole portion 212'a of the second fixing body 212'.

[0168] According to some embodiments, rivet 310' (see...) Figure 10 ) shaft portion 312' (see Figure 10 The exposed cutting section CS can be formed between the second fixed body 212' and the third fixed body 213'.

[0169] refer to Figure 10The shaft portion 312' of the rivet 310' is sequentially inserted into the first connecting hole portion 211'a of the first fixing body 211', the insertion hole portion 111'a of the support body 111', the second connecting hole portion 212'a of the second fixing body 212', and the third connecting hole portion 213'a of the third fixing body 213'.

[0170] In this respect, the head portion 311' of the rivet 310' can be placed and supported on the outer surface of the first fixing body 211', and the end portion 313' of the shaft portion 312' of the rivet 310' can protrude outward from the outer surface 213'b of the third fixing body 213'.

[0171] The outer surface 213'b of the third fixing body 213' can pass through the shaft portion 312' of the rivet 310' in the direction ( Figure 12 The third fixed body 213' is inclined downward in the X-axis direction, and the angle α between the outer surface 213'b of the third fixed body 213' and the surface of the second frame 200' on which the first frame 100' is placed can be 45 degrees or more.

[0172] refer to Figure 11 The first protrusion 110' can be fixed to the second protrusion 210' by the end portion 313' of the shaft portion 312' of the riveting rivet 310', and the end portion 313' protrudes outward from the outer surface 213'b of the third fixing body 213'.

[0173] In this respect, the end portion 313' of the shaft portion 312' of the rivet 310' can be riveted to form a riveted portion 313'a having a shape similar to the head portion 311', and a portion of the shaft portion 312' of the rivet 310' can be exposed by a cutting section CS that serves as the space between the second fixing body 212' and the third fixing body 213'.

[0174] Therefore, after assembling the first frame 100' and the second frame 200', with the exposed portion of the shaft portion 312' cut off and the rivets 310' removed, the first frame 100' can be separated from the second frame 200' and is thus in a disassembled state.

[0175] According to one or more embodiments, the frame can be assembled relatively easily and precisely even when the thickness of the frame is reduced to accommodate the thinning of the battery cells.

[0176] According to one or more embodiments, separation between the frames can be easily and conveniently performed after assembly.

[0177] However, the effects that can be obtained through this disclosure are not limited to those described above, and those skilled in the art will clearly understand other unmentioned technical effects from the following description of this disclosure.

[0178] Although this disclosure has been described with reference to specific embodiments and accompanying drawings, it is not limited thereto, and it will be apparent to those skilled in the art that various modifications and variations can be made within the spirit and scope of the claims and their equivalents.

Claims

1. An assembly structure for a battery frame, the assembly structure comprising: The first protrusion protrudes from the side edge of the first frame in which the battery cell is mounted, and has an insertion hole portion formed in the direction extending from the side edge; The second protrusion is arranged to correspond to the first protrusion on the second frame on which the first frame is placed, and has a connecting hole portion corresponding to the insertion hole portion. as well as A fastening member having a shaft portion passing through the insertion hole portion and the connecting hole portion, wherein the end portion of the shaft portion is configured to be secured when the first frame is assembled to the second frame.

2. The assembly structure according to claim 1, wherein... The second protrusion includes: A first fixing body contacts and supports the first protrusion, and has a first connecting hole portion; as well as The second fixing body is spaced apart from the first fixing body in the axial direction of the shaft portion and has a second connecting hole portion. The cutting section is formed between the first fixing body and the second fixing body, and the cutting section exposes a portion of the shaft portion to the outside.

3. The assembly structure according to claim 2, wherein... The first protrusion includes: A first support body is arranged in the cutting section, has a first insertion hole portion, and contacts the first fixing body; as well as The second support body is arranged in the cutting section, has a second insertion hole portion, and contacts the second fixing body.

4. The assembly structure according to claim 3, wherein... The distance between the first support body and the second support body is 1 to 2 times the diameter of the shaft portion.

5. The assembly structure according to claim 2, wherein... The outer surface of the second fixing body is inclined downward, and the end portion of the shaft portion is fixed to the outer surface of the second fixing body.

6. The assembly structure according to claim 5, wherein... The angle between the outer surface and the surface of the second frame on which the first frame is mounted is greater than 45 degrees.

7. The assembly structure according to claim 1, wherein... The height of the first protrusion is 2 to 3 times the diameter of the shaft portion.

8. The assembly structure according to claim 1, wherein The protruding length of the first protrusion is 2 to 3 times the diameter of the shaft portion.

9. The assembly structure according to claim 1, wherein... The second protrusion includes: The first fixed body contacts and supports one side surface of the first protrusion; The second fixing body contacts and supports the other side surface of the first protrusion; as well as The third fixing body is spaced apart from the second fixing body in the axial direction of the shaft portion. The cutting section is formed between the second fixing body and the third fixing body, and the cutting section exposes a portion of the shaft portion to the outside.

10. The assembly structure according to claim 9, wherein... The distance between the second fixing body and the third fixing body is set to be 1 to 2 times the diameter of the shaft portion.

11. A battery pack, comprising: At least one battery cell; A first frame, wherein the at least one battery cell is mounted, and includes a first protrusion portion protruding from a side edge of the first frame, the first protrusion portion having an insertion hole portion formed in the direction extending from the side edge; as well as A second frame is mounted on the first frame, and the second frame includes a second protruding portion corresponding to the first protruding portion, the second protruding portion having a connecting hole portion formed corresponding to the insertion hole portion. The shaft portion of the fastening member passes through the insertion hole portion and the connecting hole portion, and the end portion of the shaft portion is fixed to assemble the first frame to the second frame.

12. The battery pack according to claim 11, wherein The second protrusion includes: A first fixing body contacts and supports the first protrusion, and has a first connecting hole portion; as well as The second fixing body is spaced apart from the first fixing body in the axial direction of the shaft portion and has a second connecting hole portion. The cutting section is formed between the first fixing body and the second fixing body, and the cutting section exposes a portion of the shaft portion to the outside.

13. The battery pack according to claim 12, wherein The first protrusion includes: A first support body is arranged in the cutting section, has a first insertion hole portion, and contacts the first fixing body; as well as The second support body is arranged in the cutting section, has a second insertion hole portion, and contacts the second fixing body.

14. The battery pack according to claim 13, wherein The distance between the first support body and the second support body is 1 to 2 times the diameter of the shaft portion.

15. The battery pack according to claim 12, wherein The outer surface of the second fixing body is inclined downward, and the end portion of the shaft portion is fixed to the outer surface of the second fixing body.

16. The battery pack according to claim 15, wherein The angle between the outer surface and the surface of the second frame on which the first frame is mounted is greater than 45 degrees.

17. The battery pack according to claim 11, wherein The height of the first protrusion is 2 to 3 times the diameter of the shaft portion.

18. The battery pack according to claim 11, wherein The protruding length of the first protrusion is 2 to 3 times the diameter of the shaft portion.

19. The battery pack according to claim 11, wherein The second protrusion includes: The first fixed body contacts and supports one side surface of the first protrusion; The second fixing body contacts and supports the other side surface of the first protrusion; as well as A third fixing body is spaced apart from the second fixing body in the axial direction of the shaft portion, wherein a cutting section is formed between the second fixing body and the third fixing body, the cutting section exposing a portion of the shaft portion to the outside.

20. The battery pack of claim 19, wherein The distance between the second fixing body and the third fixing body is 1 to 2 times the diameter of the shaft portion.

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