Abstract: A battery modules includes a battery cell stack, in which a plurality of battery cells are stacked, a frame accommodating the battery cell stack, end plates covering front and rear surfaces of the battery cell stack, and busbar frames formed between the end plates and the battery cell stack, and a plurality of slots are formed in each of the busbar frames and a venting portion is formed at the center of each of the end plates, and the plurality of battery cells pass through the plurality of slots and are connected to the outside through a first passage part connected to the venting portion.

Abstract: A battery module including a battery cell stack, which includes a plurality of battery cells stacked in a stacking direction, a housing for the battery cell stack, a busbar that is connected with the electrode lead of the battery cell, a busbar frame that faces the front surface or rear surface of the battery cell stack and has the busbar mounted on a surface thereof, an end plate that is coupled with the housing and covers the busbar frame, and a cooling member that is located in a separation space between the busbar frame and the end plate. The cooling member includes a thermal conductive resin.

Abstract: A battery module according to one embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells including electrode leads are stacked; a busbar frame located on one surface of the battery cell stack in a direction in which the electrode leads protrude; a busbar mounted on the busbar frame; and a sensing assembly mounted on the busbar frame and including a joining member, wherein a first surface of the busbar and the electrode lead are joined, and a second surface of the busbar and the joining member are joined, and wherein the first surface and the second surface are surfaces facing each other.

Abstract: A battery module including a battery cell stack, a busbar frame that is positioned in at least one end part of the battery cell stack, a housing that houses a cell block including the battery cell stack and the busbar frame, a pair of end plates that cover the front and rear surfaces of the cell block and are coupled to the housing, and an insulating cover that is positioned between the end plate and the battery cell stack. The insulating cover includes a first insulating cover and a second insulating cover. The first insulating cover covers the first busbar coupled to the busbar frame, and the second insulating cover covers the second busbar coupled to the busbar frame.

Abstract: A battery module including a battery cell stack, which includes a plurality of battery cells stacked in a stacking direction, a housing for the battery cell stack, a busbar that is connected with the electrode lead of the battery cell, a busbar frame that faces the front surface or rear surface of the battery cell stack and has the busbar mounted on a surface thereof, an end plate that is coupled with the housing and covers the busbar frame, and a cooling member that is located in a separation space between the busbar frame and the end plate. The cooling member includes a thermal conductive resin.

Abstract: A battery modules includes a battery cell stack, in which a plurality of battery cells are stacked, a frame accommodating the battery cell stack, end plates covering front and rear surfaces of the battery cell stack, and busbar frames formed between the end plates and the battery cell stack, and a plurality of slots are formed in each of the busbar frames and a venting portion is formed at the center of each of the end plates, and the plurality of battery cells pass through the plurality of slots and are connected to the outside through a first passage part connected to the venting portion.

Abstract: A battery module includes a battery cell assembly constituted by stacking a plurality of battery cells, an end plate disposed adjacent to one end of the battery cell assembly, and a shock-absorbing member interposed between the one end of the battery cell assembly and the end plate, wherein the shock-absorbing member is woven fabric or non-woven fabric formed of a plurality of fibers.

Abstract: A battery module of the present disclosure includes: a cell assembly including at least one battery cell; a module case accommodating the cell assembly; and a module connector mounted on a mounting surface outside the module case, electrically connected to the cell assembly, and connectable to an external connector outside the module case. The module connector may include a body portion connected to a terminal coupled to the battery cell, and a fastening portion configured to have elasticity on one side of the body portion facing the mounting surface of the module case.

Abstract: A battery module includes a battery cell assembly constituted by stacking a plurality of battery cells, an end plate disposed adjacent to one end of the battery cell assembly, and a shock-absorbing member interposed between the one end of the battery cell assembly and the end plate, wherein the shock-absorbing member is woven fabric or non-woven fabric formed of a plurality of fibers.

Abstract: There is provided a pulling plate for a spindle motor, the pulling plate including: a body having a circular ring shape; and a plastic deformation part protruding upwardly from the body and plastically deformed when being mounted. Since the pulling plate is installed in the base member by deforming the plating deformation part, a coupling strength between the pulling plate and the base member may be improved. In addition, since the pulling plate may be installed in the base member only through the deformation of the plastic deformation part, an amount of deformation may be reduced. Further, contamination generated in the case that the puling plate clips the base member may be reduced as compared to a case in which the entire pulling plate is press-fitted into the base member.

Abstract: There is provided a stator core formed by stacking a plurality of single core sheets, each including a coreback having a central hole formed therein, a plurality of tooth parts extended from the coreback in a radial direction, and extension parts extended from the plurality of respective tooth parts in a circumferential direction, wherein at least one of the plurality of single core sheets includes through-holes formed therein in order to reduce cogging torque, the through-holes being formed in the extension parts.

Abstract: A hydrodynamic bearing assembly includes a shaft; a sleeve having a shaft hole formed therein so that the shaft is rotatably inserted thereinto; and first and second dynamic pressure generation grooves provided in at least one of an outer surface of the shaft and an inner surface of the sleeve and having a herringbone pattern including V-shaped portions in which upper and lower wings are provided to generate dynamic pressure in lubricating fluid filling a bearing clearance between the shaft and the sleeve at the time of rotation of the shaft. The first dynamic pressure generation groove has a V-shaped portion of which an upper wing is longer than a lower wing, and the second dynamic pressure generation groove is disposed below the first dynamic pressure generation groove in an axial direction and has a V-shaped portion of which a lower wing is longer than an upper wing.

Abstract: There is provided a hydrodynamic bearing apparatus, including: a shaft; and a sleeve rotatably supporting the shaft, wherein at least one of an outer surface of the shaft and an inner surface of the sleeve includes upper and lower hydrodynamic grooves generating hydrodynamic fluid pressure while the shaft rotates, and at least one of the upper and lower hydrodynamic grooves has a depth of a lower part thereof greater than that of an upper part thereof.

Abstract: There is provided a hydrodynamic bearing assembly including: a sleeve fixed to a base member and having a depression groove formed in a lower end portion thereof; and a shaft rotatably supported by the sleeve and having a stopper inserted in the depression groove, wherein the stopper includes a movement suppressing part provided on an outer peripheral surface thereof in order to suppress movements of a lubricating fluid.

Abstract: There is provided a hydrodynamic bearing apparatus, including: a shaft; and a sleeve rotatably supporting the shaft, wherein at least one of an outer surface of the shaft and an inner surface of the sleeve includes upper and lower hydrodynamic grooves generating hydrodynamic fluid pressure while the shaft rotates, and at least one of the upper and lower hydrodynamic grooves has a depth of a lower part thereof greater than that of an upper part thereof.

Abstract: There is provided a pulling plate for a spindle motor, the pulling plate including: a body having a circular ring shape; and a plastic deformation part protruding upwardly from the body and plastically deformed when being mounted. Since the pulling plate is installed in the base member by deforming the plating deformation part, a coupling strength between the pulling plate and the base member may be improved. In addition, since the pulling plate may be installed in the base member only through the deformation of the plastic deformation part, an amount of deformation may be reduced. Further, contamination generated in the case that the puling plate clips the base member may be reduced as compared to a case in which the entire pulling plate is press-fitted into the base member.

Abstract: There is provided a stator core including: a coreback having an installation hole formed therein; a plurality of teeth extended from the coreback in a radial direction; and extension parts, each extended from each of the plurality of teeth in a circumferential direction and having a through-hole formed therein to reduce cogging torque.

Abstract: There is provided a stator core formed by stacking a plurality of single core sheets, each including a coreback having a central hole formed therein, a plurality of tooth parts extended from the coreback in a radial direction, and extension parts extended from the plurality of respective tooth parts in a circumferential direction, wherein at least one of the plurality of single core sheets includes through-holes formed therein in order to reduce cogging torque, the through-holes being formed in the extension parts.

Abstract: A hydrodynamic bearing assembly includes a shaft; a sleeve having a shaft hole formed therein so that the shaft is rotatably inserted thereinto; and first and second dynamic pressure generation grooves provided in at least one of an outer surface of the shaft and an inner surface of the sleeve and having a herringbone pattern including V-shaped portions in which upper and lower wings are provided to generate dynamic pressure in lubricating fluid filling a bearing clearance between the shaft and the sleeve at the time of rotation of the shaft. The first dynamic pressure generation groove has a V-shaped portion of which an upper wing is longer than a lower wing, and the second dynamic pressure generation groove is disposed below the first dynamic pressure generation groove in an axial direction and has a V-shaped portion of which a lower wing is longer than an upper wing.

Abstract: There is provided a stator assembly for a motor, the stator assembly including: a base including a core mounted therein, the core having a coil wound therearound and the coil generating rotational driving force of a rotating member; and an absorbing part coupled to the base so as to be disposed on an upper surface of the core and absorbing vibrations or noise of the core.