Battery pack frame

Abstract

A battery pack frame is disclosed. According to one embodiment of this disclosure, the battery pack frame includes: a bottom frame forming the bottom of the battery pack frame and including a loading plate forming an upper surface and an additional plate forming a lower surface; and a side frame forming a shape extending upward from at least a portion of the periphery of the loading plate, the additional plate including: a cooling plate having cooling channels; and an impact absorption plate including an impact absorption intermediate layer located below the cooling plate and an outer layer located below the impact absorption intermediate layer, the impact absorption plate including a plurality of impact absorption ribs located between the impact absorption intermediate layer and the outer layer, and arranged sequentially.

Description

Technical Field

[0001] This disclosure relates to a battery pack frame. Background Technology

[0002] Secondary batteries used in electric vehicles, etc., can be mounted in battery pack frames. These frames cool the secondary batteries and protect them from external impacts. Therefore, a battery pack frame that effectively protects secondary batteries from external impacts is needed. Summary of the Invention

[0003] (a) Technical problems to be solved According to one aspect of this disclosure, a battery pack frame that is easy to maintain or replace can be provided.

[0004] According to one aspect of this disclosure, a battery pack frame may be provided, the battery pack frame including an impact-absorbing plate for protecting a cooling plate from external impacts.

[0005] (II) Technical Solution According to the battery pack frame disclosed herein, it may include: a bottom frame forming the bottom of the battery pack frame and including a loading plate forming an upper surface and an additional plate forming a lower surface; and a side frame forming a shape extending upward from at least a portion of the periphery of the loading plate, the additional plate including: a cooling plate having cooling channels; and an impact absorption plate including an impact absorption intermediate layer located below the cooling plate and an outer layer located below the impact absorption intermediate layer, the impact absorption plate including a plurality of impact absorption ribs located between the impact absorption intermediate layer and the outer layer, and arranged sequentially.

[0006] At least two adjacent impact-absorbing ribs among the plurality of impact-absorbing ribs may overlap in the vertical direction.

[0007] Each of the plurality of impact-absorbing ribs may be tilted relative to the outer layer and the impact-absorbing intermediate layer.

[0008] The impact absorption plate may include an impact absorption space, which is the space formed between the outer layer and the impact absorption intermediate layer.

[0009] The impact absorption plate may include an impact absorber located in the impact absorption space and formed of an elastic material.

[0010] The plurality of impact-absorbing ribs may include a plurality of first arc-shaped ribs and a plurality of second arc-shaped ribs arranged alternately along one direction, wherein the shape of the first arc-shaped ribs may be symmetrical to the shape of the second arc-shaped ribs in the vertical direction.

[0011] The first arc-shaped rib and the second arc-shaped rib may each include: a main arc, which is attached to at least one of the outer layer and the shock-absorbing intermediate layer; and a sub-arc, which is attached to the main arc.

[0012] The main arc of the first arc-shaped rib can be connected to the outer layer and is recessed toward the outer layer and protrudes toward the impact-absorbing intermediate layer. The main arc of the second arc-shaped rib can be connected to the impact-absorbing intermediate layer and is recessed toward the impact-absorbing intermediate layer and protrudes toward the outer layer.

[0013] The sub-arcs of the first arc-shaped rib may protrude toward the outer layer, and the sub-arcs of the second arc-shaped rib may protrude toward the impact-absorbing intermediate layer.

[0014] The impact-absorbing plate can be detachably attached to the cooling plate via a joint.

[0015] The additional plate may include a heat insulation plate disposed between the cooling plate and the impact absorption plate, and is formed of heat insulation material.

[0016] The cooling plate may include: an inner layer forming the upper surface of the cooling plate; a cooling intermediate layer located below the inner layer and bonded to the impact-absorbing intermediate layer; a cooling channel forming a space between the inner layer and the cooling intermediate layer; and a cooling wall located between the inner layer and the cooling intermediate layer and separating the cooling channel.

[0017] The inner layer can be integrally formed with the loading plate.

[0018] The cooling intermediate layer can be integrally formed with the shock-absorbing intermediate layer.

[0019] The additional plate may further include a heat insulation plate located between the cooling plate and the impact absorption plate, forming an internal heat insulation space.

[0020] The heat insulation panel may include: a heat insulation top layer integrally formed with the cooling intermediate layer; a heat insulation bottom layer integrally formed with the impact absorption intermediate layer; and a heat insulation wall extending downward from the heat insulation top layer to the heat insulation bottom layer.

[0021] The insulation space can be formed between the top insulation layer and the bottom insulation layer, and is separated by the insulation wall.

[0022] The plurality of impact-absorbing ribs may include a plurality of S-shaped ribs, each of which forms an S-shape and is attached at one end to the outer layer and at the other end to the impact-absorbing intermediate layer.

[0023] The additional plate may include: a plurality of cooling plates, each of which is arranged in one direction as the cooling plate; and a plurality of impact absorption plates, each of which is arranged in the one direction as the impact absorption plate.

[0024] The cooling plate is formed in a shape that extends along the length direction, and the additional plate may include multiple impact absorption plates, each of which is arranged sequentially along the length direction as an impact absorption plate.

[0025] (III) Beneficial Effects According to one embodiment of this disclosure, maintenance or replacement of the battery pack frame can be made easy.

[0026] According to one embodiment of this disclosure, the battery pack frame may include an impact-absorbing plate for protecting the cooling plate from external impacts.

[0027] The battery pack framework disclosed herein can be used or applied to eco-friendly electric vehicles, hybrid vehicles, etc., to prevent climate change by suppressing air pollution and greenhouse gas emissions. Attached Figure Description

[0028] Figure 1 and Figure 2 This is a diagram showing the state of a battery pack frame according to an embodiment of the present disclosure, viewed from different directions.

[0029] Figure 3 This is an exploded perspective view of an attachment plate according to one embodiment.

[0030] Figure 4 This is a diagram showing a cross-section of the additional plate.

[0031] Figure 5 It is a cross-section of the additional plate, and is a diagram showing the state of the impact absorption plate and the cooling plate joined together by the joint.

[0032] Figure 6 This is a diagram showing the lower part of the battery pack frame, and it shows the state of the impact absorption plate being attached to the heat insulation plate.

[0033] Figure 7 This is a diagram showing a portion of a cross-section of the bottom frame according to an embodiment of the present disclosure.

[0034] Figure 8 This is a diagram showing a cross-section of an impact-absorbing plate including arc ribs.

[0035] Figure 9 This is a diagram showing a cross-section of an impact-absorbing plate including S-shaped ribs.

[0036] Figure 10 This is a cross-sectional view showing an additional plate that forms an insulating space on the insulation plate.

[0037] Figure 11 This is a cross-section diagram showing an additional plate including the impact absorber. Detailed Implementation

[0038] The following is for reference Figures 1 to 11 This disclosure will be described in detail below. However, this is merely exemplary, and this disclosure is not limited to the specific embodiments described herein.

[0039] In this specification, the XYZ coordinate system may be used. The XYZ coordinate system may be a Cartesian coordinate system.

[0040] For example, the Z-axis can be parallel to the up and down directions. For example, a positive Z-axis direction can represent the upward direction. For example, a negative Z-axis direction can represent the downward direction.

[0041] For example, the X-axis can be parallel to the forward and backward directions. For example, the positive X-axis direction can represent the forward direction. For example, the negative X-axis direction can represent the backward direction.

[0042] For example, the Y-axis can be parallel to the left and right directions. For example, a positive Y-axis direction can represent the left direction. For example, a negative Y-axis direction can represent the right direction.

[0043] Figure 1 and Figure 2 This is a diagram showing the state of a battery pack frame according to an embodiment of the present disclosure, viewed from different directions.

[0044] Reference Figure 1 and Figure 2 The battery pack frame 10 may include a bottom frame 100. The bottom frame 100 may form the bottom of the battery pack frame 10.

[0045] For example, the bottom frame 100 can be formed in the shape of a plate. For example, the bottom frame 100 can be formed with an upper surface facing upwards. For example, the bottom frame 100 can be formed with a lower surface facing downwards.

[0046] The bottom frame 100 can form a side or edge. For example, the bottom frame 100 can form two sides extending along the length direction of the bottom frame 100. For example, the length direction of the bottom frame 100 can be the front-to-back direction.

[0047] For example, the bottom frame 100 may have two sides extending along its width direction. For example, the width direction of the bottom frame 100 may be left-right.

[0048] The battery pack frame 10 may include side frames 200. The side frames 200 may be connected to or coupled to the bottom frame 100. For example, the side frames 200 may be connected to or coupled to each side of the bottom frame 100.

[0049] For example, the side frame 200 may be shaped to extend upward from the periphery of the bottom frame 100. For example, the side frame 200 and the bottom frame 100 may form an upwardly opening space.

[0050] The bottom frame 100 may include multiple layers. For example, the bottom frame 100 may include a loading plate 100L. The loading plate 100L may form the upper surface of the bottom frame 100. For example, the upper surface of the loading plate 100L may form the upper surface of the bottom frame 100.

[0051] The battery pack frame 10 can hold at least one of a battery module and a battery cell. The battery module may include multiple battery cells.

[0052] For example, the battery module or cell can be located above the loading plate 100L. For example, the loading plate 100L can be in contact with the battery module or cell.

[0053] The battery pack frame 10 may include an attachment plate 100A. For example, the attachment plate 100A may be attached to a mounting plate 100L. For example, the attachment plate 100A may face the lower surface of the mounting plate 100L.

[0054] For example, the attachment plate 100A can form the lower surface of the bottom frame 100.

[0055] Figure 3 This is an exploded perspective view of an attachment plate according to one embodiment. Figure 4 This is a diagram showing a cross-section of the additional plate. (Refer to...) Figure 3 and Figure 4 The additional plate 100A may include a cooling plate 110.

[0056] The cooling plate 110 may include multiple layers. For example, the cooling plate 110 may include an inner layer 111 and a cooling intermediate layer 112.

[0057] The cooling plate 110 can form the upper surface of the auxiliary plate 100A. For example, the upper surface of the inner layer 111 can form the upper surface of the auxiliary plate 100A.

[0058] Cooling plate 110 can be used with loading plate 100L (see reference) Figure 1 ) in contact or bond. For example, the inner layer 111 may be in contact with or bonded to the loading plate 100L (see reference). Figure 1 ( ) contact or combination.

[0059] The cooling plate 110 may include a cooling intermediate layer 112. The cooling intermediate layer 112 may be located below the inner layer 111. For example, the cooling intermediate layer 112 may be spaced apart from the inner layer 111.

[0060] The cooling plate 110 may include cooling channels 114. For example, the cooling channel 114 may be the gap between the intermediate layer 112 and the inner layer 111.

[0061] The intermediate cooling layer 112 and the inner layer 111 can be connected. For example, the cooling plate 110 may include a cooling wall 113 for connecting the intermediate cooling layer 112 and the inner layer 111.

[0062] The cooling wall 113 can extend downward from the inner layer 111 to the cooling intermediate layer 112. The cooling wall 113 can separate the gap formed between the cooling intermediate layer 112 and the inner layer 111.

[0063] The cooling channel 114 may be a hollow portion formed in the cooling plate 110. For example, the cooling channel 114 may be a channel formed by an inner layer 111, a cooling intermediate layer 112, and a cooling wall 113.

[0064] In other words, the cooling channel 114 may be defined by an inner layer 111, a cooling intermediate layer 112, and a cooling wall 113. For example, the cooling channel 114 may extend from one end to the other.

[0065] For example, one end and the other end of the cooling channel 114 may be open. For example, refrigerant may flow into one end of the cooling channel 114. The refrigerant may flow in the cooling channel 114. The refrigerant may be discharged to the outside from the other end of the cooling channel 114.

[0066] Loaded into battery pack frame 10 (see reference) Figure 1 The battery (not shown) may generate heat. At least some of the heat generated in the battery (not shown) can be transferred to the loading plate 100L (see reference). Figure 1 ).

[0067] Transferred to loading plate 100L (reference) Figure 1 At least a portion of the heat can be transferred to the cooling plate 110. At least a portion of the heat transferred to the cooling plate 110 can be transferred to the refrigerant.

[0068] Cooling plate 110 can be used with loading plate 100L (see reference) Figure 1 The inner layer 111 can be integrally formed with the loading plate 100L (see reference). Figure 1 ) are formed as one piece. In this case, it is transferred to the loading plate 100L (refer to Figure 1 At least a portion of the heat can be transferred to the refrigerant.

[0069] The temperature of the refrigerant flowing into the cooling channel 114 can be lower than the temperature of the cooling plate 110. This effectively suppresses the refrigerant contained in the battery pack frame 10 (see reference 110). Figure 1 The temperature of the battery (not shown) rises.

[0070] Battery pack frame 10 (reference) Figure 1 It can be installed in a car. For example, battery pack frame 10 (see reference). Figure 1 This can form the lower portion of a car. For example, it may be necessary to protect the cooling plate 110 from external impacts.

[0071] The additional plate 100A may include a shock-absorbing plate 120. The shock-absorbing plate 120 may be located below the cooling plate 110. For example, the shock-absorbing plate 120 may be combined with or connected to the cooling plate 110 via a heat insulation plate 130.

[0072] The additional plate 100A may include a heat insulation plate 130. The heat insulation plate 130 may be located between the cooling plate 110 and the impact absorption plate 120. The heat insulation plate 130 may be formed of a material containing heat insulation material.

[0073] The shock-absorbing plate 120 may include multiple layers. For example, the shock-absorbing plate 120 may include an outer layer 121 and a shock-absorbing intermediate layer 122.

[0074] The outer layer 121 can form the lower surface of the shock-absorbing plate 120. The shock-absorbing intermediate layer 122 can form the upper surface of the shock-absorbing plate 120. The shock-absorbing intermediate layer 122 can be separated from the outer layer 121 and located above the outer layer 121.

[0075] The impact absorption plate 120 may include a plurality of impact absorption ribs 123. The impact absorption ribs 123 may extend upward from the outer layer 121 to the impact absorption intermediate layer 122.

[0076] The impact-absorbing ribs 123 may be tilted relative to the outer layer 121 and the impact-absorbing intermediate layer 122. For example, at least two adjacent impact-absorbing ribs 123 may overlap in the vertical direction.

[0077] When an external impact is applied to the outer layer 121 from below, at least a portion of the external impact applied to the outer layer 121 can be transmitted to the impact absorbing rib 123.

[0078] For example, when an external force is applied to the impact-absorbing rib 123, the shape of the impact-absorbing rib 123 may deform. As another example, when an external force is applied to the impact-absorbing rib 123, the impact-absorbing rib 123 may break.

[0079] Therefore, at least a portion of the external impact applied to the impact absorption plate 120 can be absorbed by the impact absorption plate 120. Thus, the cooling plate 110 can be effectively protected from external impacts.

[0080] Figure 5 It is a cross-section of the additional plate, and is a diagram showing the state of the impact absorption plate and the cooling plate joined together by the joint. Figure 6 This is a diagram showing the lower part of the battery pack frame, and it shows the state of the impact absorption plate being attached to the heat insulation plate.

[0081] Reference Figure 5 and Figure 6 The additional plate 100A may include a joint 140. For example, the joint 140 may combine the impact-absorbing plate 120 and the cooling plate 110. For example, the joint 140 may combine the heat insulation plate 130 to the impact-absorbing plate 120 and the cooling plate 110.

[0082] For example, the joint 140 may include a screw. For example, the joint 140 may pass sequentially through the impact absorption plate 120 and the heat insulation plate 130 and be inserted into the cooling plate 110.

[0083] The connection between the joint 140 and the cooling plate 110 can be released. The cooling plate 110 can function normally even if an impact is applied to the impact absorption plate 120, causing damage to the impact absorption plate 120. In this case, it may be necessary to replace the impact absorption plate 120.

[0084] When the impact absorption plate 120 needs to be replaced, the connection between the joint 140 and the cooling plate 110 is released, and the damaged impact absorption plate 120 can be discarded. The new impact absorption plate 120 can be connected to the cooling plate 110 and the heat insulation plate 130 through the joint 140.

[0085] Reference Figures 1 to 6The area of ​​the bottom frame 100 can be divided. For example, the battery pack frame 10 may include multiple bottom frames 100.

[0086] Multiple bottom frames 100 can be arranged sequentially along one direction. For example, multiple bottom frames 100 can be arranged sequentially along the length direction of the battery pack frame 10. For example, the length direction of the battery pack frame 10 can be parallel to the X-axis.

[0087] When an external impact is applied to the battery pack frame 10 from below, some of the multiple bottom frames 100 may be damaged, while others may remain intact. In this case, only the damaged portion of the multiple bottom frames 100 can be replaced.

[0088] When an external impact is applied to the battery pack frame 10 from below, the impact absorption plate 120 can absorb at least a portion of the external impact. In this case, the impact absorption plate 120 may be damaged.

[0089] For example, it is possible for the shock absorber 120 to be damaged while the cooling plate 110 remains intact. For example, only the damaged portion of the multiple shock absorbers 120 can be replaced.

[0090] As another example, the loading plate 100L is integrally formed, and multiple auxiliary plates 100A can be sequentially arranged below the loading plate 100L.

[0091] As another example, the cooling plate 110 is integrally formed, and multiple impact absorption plates 120 can be sequentially arranged below the cooling plate 110.

[0092] By sequentially setting multiple impact absorption plates 120, the maintenance or replacement of the auxiliary plate 100A becomes easy.

[0093] Figure 7 This is a diagram showing a portion of a cross-section of the bottom frame according to an embodiment of the present disclosure.

[0094] Reference Figure 1 , Figure 2 and Figure 7 The cooling plate 110 can be located below the loading plate 100L. For example, the inner layer 111 can contact the lower surface of the loading plate 100L.

[0095] As another example, the cooling plate 110 may be integrally formed with the loading plate 100L. For example, the inner layer 111 may be integrally formed with the loading plate 100L.

[0096] The shock-absorbing plate 120 can be located below the cooling plate 110. For example, the shock-absorbing intermediate layer 122 can be in contact with the lower surface of the cooling intermediate layer 112.

[0097] As another example, the shock-absorbing plate 120 may be integrally formed with the cooling plate 110. For example, the shock-absorbing intermediate layer 122 may be integrally formed with the cooling intermediate layer 112. In this case, the shock-absorbing intermediate layer 122 or the cooling intermediate layer 112 may be referred to as an "intermediate layer".

[0098] The thickness of the inner layer 111 can be greater than or equal to the thickness of the intermediate layers 112 and 122. By ensuring that the thickness of the inner layer 111 is above a certain level, the cooling plate 110 can stably support the loading plate 100L. For example, by ensuring that the thickness of the inner layer 111 is above a certain level, the cooling plate 110 can stably support the secondary battery (not shown).

[0099] The thickness of the intermediate layers 112 and 122 can be greater than or equal to the thickness of the outer layer 121. By ensuring that the thickness of the intermediate layers 112 and 122 is above a certain level, the shape of the cooling channel 114 can be stably maintained.

[0100] The thickness of the outer layer 121 can be greater than or equal to the thickness of the impact-absorbing rib 123. As a result, at least a portion of the impact applied to the outer layer 121 can be transmitted to the impact-absorbing rib 123, and the impact-absorbing rib 123 deforms, so that the external impact can be effectively absorbed by the impact-absorbing plate 120.

[0101] The bottom frame 100 may include a lower cover 150. The lower cover 150 may form the lower surface of the bottom frame 100. The lower cover 150 may primarily protect the cooling plate 110 from external impacts applied to the bottom frame 100 from below.

[0102] The bottom frame 100 may include a resilient board 160. The resilient board 160 may be located between the lower cover 150 and the shock-absorbing board 120. For example, the resilient board 160 may be located above the lower cover 150 and below the outer layer 121.

[0103] For example, the elastic plate 160 may be formed of a material containing an elastic material. For example, the elastic plate 160 may absorb at least a portion of the impact applied to the elastic plate 160.

[0104] For example, the elastic plate 160 may be formed of a material containing heat-insulating material. For example, the elastic plate 160 may suppress the flow of heat between the cooling plate 110 and the outside of the battery pack frame 10.

[0105] Figure 8 This is a diagram showing a cross-section of an impact-absorbing plate including arc ribs.

[0106] Reference Figure 8 The impact-absorbing plate 120 may include arcuate ribs 123C. The impact-absorbing ribs 123 may include or represent arcuate ribs 123C.

[0107] Multiple curved ribs 123C can be provided. For example, the impact absorption plate 120 may include multiple curved ribs 123C. Multiple curved ribs 123C can be of various types.

[0108] For example, the first arcuate rib 123C1 and the second arcuate rib 123C2 can be arcuate ribs 123C of different types from each other. For example, the arcuate rib 123C can include or represent at least one of the first arcuate rib 123C1 and the second arcuate rib 123C2.

[0109] The arc-shaped rib 123C may include a main arc 123CM and a sub-arc 123CS. The main arc 123CM may be connected to or bonded to at least one of the outer layer 121 and the shock-absorbing intermediate layer 122.

[0110] For example, the main arc 123CM of the first arc rib 123C1 can be recessed toward the outer layer 121 and protrude toward the impact-absorbing intermediate layer 122.

[0111] For example, the main arc 123CM of the second arc rib 123C2 can protrude toward the outer layer 121 and be recessed toward the impact-absorbing intermediate layer 122.

[0112] For example, the main arc 123CM of the first arc rib 123C1 can be connected to or bonded to the outer layer 121. For example, the first arc rib 123C1 and the second arc rib 123C2 can extend from the outer layer 121 or the impact-absorbing intermediate layer 122.

[0113] Sub-arc 123CS can be combined with main arc 123CM. For example, sub-arc 123CS can extend from main arc 123CM. For example, a space can be formed between sub-arc 123CS and main arc 123CM.

[0114] For example, the sub-arc 123CS of the first arc rib 123C1 can protrude toward the outer layer 121. For example, the sub-arc 123CS of the second arc rib 123C2 can protrude toward the shock-absorbing intermediate layer 122.

[0115] Multiple first arc-shaped ribs 123C1 and multiple second arc-shaped ribs 123C2 can be arranged sequentially. For example, multiple first arc-shaped ribs 123C1 and multiple second arc-shaped ribs 123C2 can be arranged alternately.

[0116] In the plurality of first arc-shaped ribs 123C1 and the plurality of second arc-shaped ribs 123C2, an adjacent first arc-shaped rib 123C1 and a second arc-shaped rib 123C2 may overlap in the vertical direction.

[0117] For example, in a plurality of first arc ribs 123C1 and a plurality of second arc ribs 123C2, the main arc 123CM of an adjacent first arc rib 123C1 and the main arc 123CM of a second arc rib 123C2 can overlap in the vertical direction.

[0118] Figure 9 This is a diagram showing a cross-section of an impact-absorbing plate including S-shaped ribs.

[0119] Reference Figure 9 The impact-absorbing plate 120 may include S-shaped ribs 123S. The impact-absorbing ribs 123 may include or represent S-shaped ribs 123S.

[0120] The cross-section of the S-shaped rib 123S can form the shape of the capital letter "S". For example, the S-shaped rib 123S can extend from the outer layer 121 to the shock-absorbing intermediate layer 122.

[0121] Due to the shape of the S-shaped rib 123S, at least a portion of the impact applied to the S-shaped rib 123S can be absorbed by the S-shaped rib 123S. For example, when an impact is applied to the S-shaped rib 123S, the shape of the S-shaped rib 123S may deform, or the S-shaped rib 123S may break.

[0122] Multiple S-shaped ribs 123S can be provided. For example, the impact absorption plate 120 may include multiple S-shaped ribs 123S. Multiple S-shaped ribs 123S can be arranged sequentially.

[0123] Figure 10 This is a cross-sectional view showing an additional plate that forms an insulating space within the insulation panel.

[0124] Reference Figure 10 Additional panel 100A may include insulation panel 130.

[0125] The heat insulation plate 130 may be located below the cooling plate 110. For example, the heat insulation plate 130 may be combined with or connected to the cooling plate 110. For example, the heat insulation plate 130 may be integrally formed with the cooling plate 110.

[0126] For example, the heat insulation panel 130 may include a heat insulation top layer 131 forming the upper surface of the heat insulation panel 130. The heat insulation top layer 131 may be bonded to the lower surface of the cooling intermediate layer 112.

[0127] For example, the thermal insulation top layer 131 can be integrally formed with the cooling intermediate layer 112. In this case, the thermal insulation top layer 131 or the cooling intermediate layer 112 can be referred to as the "intermediate top layer".

[0128] The heat insulation panel 130 may be located above the shock absorption panel 120. For example, the heat insulation panel 130 may be combined with or connected to the shock absorption panel 120. For example, the heat insulation panel 130 may be integrally formed with the shock absorption panel 120.

[0129] For example, the insulation panel 130 may include an insulating underlayer 132 forming the lower surface of the insulation panel 130. The insulating underlayer 132 may be bonded to the upper surface of the shock-absorbing intermediate layer 122.

[0130] For example, the insulating base layer 132 can be integrally formed with the shock-absorbing intermediate layer 122. In this case, the insulating base layer 132 or the shock-absorbing intermediate layer 122 can be referred to as the "intermediate base layer".

[0131] The heat insulation panel 130 may include a heat insulation space 134. The heat insulation space 134 may be a hollow portion or space formed in the heat insulation panel 130. For example, the heat insulation space 134 may be a space formed between the top heat insulation layer 131 and the bottom heat insulation layer 132. By forming the heat insulation space 134, heat transfer between the cooling plate 110 and the impact absorption plate 120 can be suppressed.

[0132] The insulation panel 130 may include an insulation wall 133. The insulation wall 133 may extend downward from the top insulation layer 131 to the bottom insulation layer 132. The insulation wall 133 may divide the insulation space 134.

[0133] Figure 11 This is a cross-section diagram showing an additional plate including the impact absorber.

[0134] Reference Figure 7 and Figure 11 The impact absorption plate 120 may include an impact absorber 125. The impact absorber 125 may be located or housed in an impact absorption space.

[0135] The shock absorber 125 can be formed of a material comprising an elastic material. For example, the shock absorber 125 can be formed of a material comprising at least one of polyurethane and silicone.

[0136] According to one embodiment of the present disclosure, the battery pack frame 10 may include a bottom frame 100 forming the bottom of the battery pack frame 10 and including a loading plate 100L forming an upper surface and an auxiliary plate 100A forming a lower surface.

[0137] The battery pack frame 10 may include a side frame 200, the side frame 200 being shaped to extend upward from at least a portion of the periphery of the loading plate 100L.

[0138] The additional plate 100A may include: a cooling plate 110 having cooling channels 114; and an impact absorption plate 120 including an impact absorption intermediate layer 122 located below the cooling plate 110 and an outer layer 121 located below the impact absorption intermediate layer 122.

[0139] The impact absorption plate 120 may include a plurality of impact absorption ribs 123, which are located between the impact absorption intermediate layer 122 and the outer layer 121 and are arranged sequentially.

[0140] Two adjacent impact absorbing ribs 123 among the plurality of impact absorbing ribs 123 may overlap in the vertical direction.

[0141] Each of the plurality of impact-absorbing ribs 123 may be tilted relative to the outer layer 121 and the impact-absorbing intermediate layer 122.

[0142] The impact absorption plate 120 may include an impact absorption space 124, which is the space formed between the outer layer 121 and the impact absorption intermediate layer 122.

[0143] The impact absorption plate 120 may include an impact absorber located in the impact absorption space 124 and formed of an elastic material.

[0144] The plurality of impact-absorbing ribs 123 may include a plurality of first arc-shaped ribs 123C1 and a plurality of second arc-shaped ribs 123C2 alternately arranged along one direction. In addition, the shape of the first arc-shaped ribs 123C1 may be symmetrical to the shape of the second arc-shaped ribs 123C2 in the vertical direction.

[0145] The first arc-shaped rib 123C1 and the second arc-shaped rib 123C2 may each include: a main arc 123CM, which is attached to at least one of the outer layer 121 and the shock-absorbing intermediate layer 122; and a sub-arc 123CS, which is attached to the main arc 123CM.

[0146] The main arc 123CM of the first arc-shaped rib 123C1 can be connected to the outer layer 121, and is recessed toward the outer layer 121 and protrudes toward the impact-absorbing intermediate layer 122.

[0147] The main arc 123CM of the second arc-shaped rib 123C2 can be connected to the impact absorption intermediate layer 122, and is recessed toward the impact absorption intermediate layer 122 and protrudes toward the outer layer 121.

[0148] The sub-arc 123CS of the first arc-shaped rib 123C1 can protrude toward the outer layer 121, and the sub-arc 123CS of the second arc-shaped rib 123C2 can protrude toward the impact-absorbing intermediate layer 122.

[0149] The impact absorption plate 120 can be detachably attached to the cooling plate 110 via the joint 140.

[0150] The additional plate 100A may include a heat insulation plate 130, which is disposed between the cooling plate 110 and the impact absorption plate 120 and is formed of heat insulation material.

[0151] The cooling plate 110 may include: an inner layer 111 forming the upper surface of the cooling plate 110; a cooling intermediate layer 112 located below the inner layer 111 and bonded to the impact-absorbing intermediate layer 122; a cooling channel 114 forming a space between the inner layer 111 and the cooling intermediate layer 112; and a cooling wall 113 located between the inner layer 111 and the cooling intermediate layer 112 and separating the cooling channel 114.

[0152] The inner layer 111 can be integrally formed with the loading plate 100L.

[0153] The cooling intermediate layer 112 can be integrally formed with the shock absorption intermediate layer 122.

[0154] The additional plate 100A may include a heat insulation plate 130, which is located between the cooling plate 110 and the impact absorption plate 120 and forms a heat insulation space 134 inside.

[0155] The heat insulation plate 130 may include: a heat insulation top layer 131, integrally formed with the cooling intermediate layer 112; a heat insulation bottom layer 132, integrally formed with the impact absorption intermediate layer 122; and a heat insulation wall 133, extending downward from the heat insulation top layer 131 to the heat insulation bottom layer 132.

[0156] The heat insulation space 134 can be formed between the heat insulation top layer 131 and the heat insulation bottom layer 132, and is separated by the heat insulation wall 133.

[0157] The plurality of impact-absorbing ribs 123 may include a plurality of S-shaped ribs 123S, each of which forms an S-shape and is connected at one end to the outer layer 121 and at the other end to the impact-absorbing intermediate layer 122.

[0158] The additional plate 100A may include: a plurality of cooling plates 110, each of which is arranged in one direction as the cooling plate 110; and a plurality of impact absorption plates, each of which is arranged in the one direction as the impact absorption plate 120.

[0159] The cooling plate 110 is formed in a shape that extends along the length direction. The additional plate 100A may include a plurality of impact absorption plates 120, each of which is arranged sequentially along the length direction as an impact absorption plate 120.

[0160] The above description is merely an example of applying the principles of this disclosure, and other configurations may be included without departing from the scope of this disclosure.

Claims

1. A battery pack frame, comprising: A bottom frame, forming the bottom of the battery pack frame, and including a loading plate forming the upper surface and an additional plate forming the lower surface; as well as The side frame is shaped to extend upward from at least a portion of the periphery of the loading plate. The additional plate includes: The cooling plate has cooling channels. as well as The impact-absorbing plate includes an intermediate impact-absorbing layer located below the cooling plate and an outer layer located below the intermediate impact-absorbing layer. The impact absorption plate includes multiple impact absorption ribs, which are located between the impact absorption intermediate layer and the outer layer and are arranged sequentially.

2. The battery pack frame according to claim 1, wherein, Each of the plurality of impact-absorbing ribs is inclined relative to the outer layer and the impact-absorbing intermediate layer.

3. The battery pack frame according to claim 1 or 2, wherein, At least two adjacent impact-absorbing ribs among the plurality of impact-absorbing ribs overlap in the vertical direction.

4. The battery pack frame according to claim 1 or 2, wherein, The impact-absorbing plate includes an impact-absorbing space, which is the space formed between the outer layer and the impact-absorbing intermediate layer.

5. The battery pack frame according to claim 1 or 2, wherein, The plurality of impact-absorbing ribs include a plurality of first arc-shaped ribs and a plurality of second arc-shaped ribs arranged alternately along one direction. The shape of the first arc-shaped rib is symmetrical to the shape of the second arc-shaped rib in the vertical direction.

6. The battery pack frame according to claim 5, wherein, The first arc-shaped rib and the second arc-shaped rib each include: The main arc is incorporated into at least one of the outer layer and the shock-absorbing intermediate layer; and The sub-arc is incorporated into the main arc.

7. The battery pack frame according to claim 6, wherein, The main arc of the first arc-shaped rib connects to the outer layer and is recessed toward the outer layer, while protruding toward the impact-absorbing intermediate layer. The main arc of the second arc-shaped rib is connected to the impact-absorbing intermediate layer and is recessed toward the impact-absorbing intermediate layer and protrudes toward the outer layer.

8. The battery pack frame according to claim 7, wherein, The sub-arcs of the first arc-shaped rib protrude toward the outer layer. The sub-arc of the second arc-shaped rib protrudes toward the impact-absorbing intermediate layer.

9. The battery pack frame according to claim 1 or 2, wherein, The impact-absorbing plate is detachably attached to the cooling plate via a joint.

10. The battery pack frame according to claim 1 or 2, wherein, The additional plate includes a heat insulation plate disposed between the cooling plate and the impact absorption plate, and is formed of heat insulation material.

11. The battery pack frame according to claim 1 or 2, wherein, The cooling plate includes: The inner layer forms the upper surface of the cooling plate; A cooling intermediate layer is located below the inner layer and is bonded to the shock-absorbing intermediate layer; Cooling channels, which are spaces formed between the inner layer and the intermediate cooling layer; and A cooling wall is located between the inner layer and the intermediate cooling layer, and separates the cooling channels.

12. The battery pack frame according to claim 11, wherein, The additional plate further includes a heat insulation plate located between the cooling plate and the impact absorption plate, forming an internal heat insulation space.

13. The battery pack frame according to claim 12, wherein, The heat insulation board includes: The heat-insulating top layer is integrally formed with the cooling intermediate layer; The heat-insulating bottom layer is integrally formed with the impact-absorbing intermediate layer; and The insulation wall extends downward from the top insulation layer to the bottom insulation layer.

14. The battery pack frame according to claim 13, wherein, The insulation space is formed between the top insulation layer and the bottom insulation layer, and is separated by the insulation wall.

15. The battery pack frame according to claim 1 or 2, wherein, The plurality of impact-absorbing ribs include a plurality of S-shaped ribs, each of which forms an S-shape and is attached at one end to the outer layer and at the other end to the impact-absorbing intermediate layer.

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