Energy storage device and assembly method thereof

Abstract

The invention relates to the technical field of energy storage, and discloses energy storage equipment and an assembly method thereof, and the energy storage equipment comprises a housing assembly, a first module and a fastener. The shell assembly comprises a fixing piece and a filling piece, and the fixing piece is provided with a mounting hole and a first wall. Part of the filling piece is arranged in the mounting hole, and the filling piece is provided with a through hole. The first module is arranged on the shell assembly and comprises a second wall and a fixing hole, the second wall faces the first wall, and the second wall and the first wall are arranged in a spaced mode. Part of the filling piece is located between the first wall and the second wall and abuts against the second wall. The fasteners are arranged in the through holes and the fixing holes, and the fasteners fix the shell assembly and the first module. In the process that the shell assembly and the first module are fixed by the fastener, a part of the filling piece is located between the first wall and the second wall and abuts against the second wall, so that the filling piece plays a role in supporting the fastener, deformation of the first module towards the first wall or deformation of the shell assembly towards the second wall are reduced, and the service life of the shell assembly is prolonged. And the yield of the energy storage equipment can be improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage device and an assembly method thereof. Background Art

[0002] In the related art, the module in the energy storage device is placed in the shell assembly and is fixed to the shell assembly by fasteners to maintain stability. However, when the module and the shell assembly are fixed by fasteners, the part where the module and the shell assembly are connected by the fasteners may be deformed, resulting in poor yield of the energy storage device. Summary of the invention

[0003] In view of this, the present application provides an energy storage device and an assembly method thereof that are beneficial to reducing deformation of a first module and a shell assembly.

[0004] In a first aspect of the present application, there is provided an energy storage device, comprising a shell assembly, a first module and a fastener. The shell assembly comprises a fixing member and a filling member, the fixing member being provided with a mounting hole and having a first wall. Part of the filling member is arranged in the mounting hole, and the filling member is provided with a through hole. The first module is arranged in the shell assembly, the first module comprises a second wall and a fixing hole, the second wall is arranged toward the first wall and spaced apart from the first wall. Part of the filling member is located between the first wall and the second wall, and abuts the second wall. The fastener is arranged in the through hole and the fixing hole, and the fastener fixes the shell assembly to the first module.

[0005] In the above embodiment, since the fasteners are provided in the through holes and the fixing holes, during the process of the fasteners fixing the shell assembly and the first module, part of the filling member is located between the first wall and the second wall and abuts against the second wall, so that the filling member supports the fasteners, which helps to reduce the deformation of the first module toward the first wall or the shell assembly toward the second wall, and further helps to improve the yield of the energy storage device.

[0006] In one or more of the above embodiments, the filling piece includes an abutting surface abutting against the second wall, and the abutting surface is configured to move from the mounting hole toward the second wall.

[0007] In the above embodiment, after the abutting surface moves from the mounting hole toward the second wall, the filling piece is gradually located between the first wall and the second wall and abuts against the second wall, so that the filling piece can support the fastener.

[0008] In one or more of the above embodiments, the housing assembly includes an adjusting member, which is disposed on a side of the filling member close to the mounting hole, and is configured to adjust a position of the filling member relative to the first wall.

[0009] In the above embodiment, before the first module is arranged on the shell assembly, the filling piece is adjusted away from the first wall by the adjusting piece so that the filling piece does not protrude from the first wall toward the second wall, which is conducive to more conveniently reducing the interference of the filling piece with the first module arranged on the shell assembly.

[0010] In one or more of the above embodiments, the adjusting member is an elastic member, and the elastic member is in a compressed state.

[0011] In the above embodiment, the elastic member has a tendency to recover elastic deformation in a direction away from the second wall, and when the adjusting member is disposed between the filling member and the fixing member, the filling member has a tendency to move in a direction away from the second wall. Furthermore, when the connecting member moves in a direction close to or away from the fixing member, the elastic member facilitates the filling member to be closely attached to the connecting member, thereby timely adjusting the filling amount of the gap by the filling member.

[0012] In one or more of the above embodiments, the fixing member is provided with a recessed portion, and the adjusting member is at least partially disposed in the recessed portion, and the adjusting member abuts between the recessed portion and the filling member.

[0013] In the above embodiment, the recess provides an accommodation space for the adjusting member, and when the fastener fixes the shell assembly and the first module, the adjusting member provides a moving space for the filling member, so that the filling member is partially located in the gap between the first wall and the second wall and supports the fastener.

[0014] In one or more of the above embodiments, the filling member includes an abutment portion and an extension portion, the extension portion extends from the abutment portion. The abutment portion is partially located in the mounting hole. The extension portion is located on a side of the fixing member away from the second wall. The abutment surface is provided on the abutment portion.

[0015] In the above embodiment, it is advantageous to make the abutting surface close to the second wall, thereby making it easier for the filling piece to abut against the second wall.

[0016] In one or more of the above embodiments, the natural length of the abutting portion is greater than the length of the mounting hole.

[0017] In the above embodiment, part of the abutting portion is located outside the mounting hole. When the abutting portion is located in the mounting hole, it is beneficial for part of the abutting portion to extend out of the mounting hole and abut against the second wall.

[0018] In one or more of the above embodiments, the extension portion is provided with a first connection hole, and the adjusting member is provided with a second connection hole. The housing assembly includes a connecting member, the connecting member passes through the first connection hole and the second connection hole, and is fixed to the recess. The adjusting member is arranged around the outside of the connecting member.

[0019] In the above embodiment, the adjusting member is fixed by the connecting member and the recess and is disposed around the outside of the connecting member, which is conducive to the connecting member stably cooperating with the fixing member to restrict the filling member, thereby facilitating that part of the filling member is stably disposed in the mounting hole.

[0020] In one or more of the above embodiments, the connecting member includes a first connecting portion and a second connecting portion, the first connecting portion passes through the first connecting hole and the second connecting hole, and is fixed to the recess. A portion of the second connecting portion is located outside the recess. The second connecting portion abuts against the extension portion. The length of the first connecting portion is less than the natural length of the adjusting member.

[0021] In the above embodiment, after the first connecting portion and the recessed portion are fixed, the adjusting member is compressed by the pressure of the connecting member, which is conducive to the adjusting member exerting a force on the filling member in a direction away from the second wall, thereby facilitating the filling member to move away from the second wall. In addition, the second connecting portion abutting against the extending portion is conducive to reducing the possibility of the filling member being separated from the mounting hole under the action of the adjusting member.

[0022] In one or more of the above embodiments, the first connecting portion includes a first connecting section and a second connecting section. The fixing member includes a convex portion provided in the concave portion, and the first connecting section and the convex portion are fixed. The second connecting section abuts against the convex portion, and a portion of the second connecting section is located outside the mounting hole. The adjusting member is arranged around the outer side of the convex portion and the outer side of the second connecting section.

[0023] In the above embodiment, the second connecting section abuts against the convex part, and when the first connecting section and the convex part are fixed, it is helpful to reduce the possibility of the second connecting section entering the convex part, thereby reducing the risk of damage to the convex part. In addition, the adjustment member is arranged around the outer side of the convex part and the outer side of the second connecting section, which is helpful to reduce the possibility of the second connecting section swinging relative to the convex part, thereby improving the stability of the second connecting section abutting against the convex part.

[0024] In one or more of the above embodiments, the fastener includes a fastening portion and a limiting portion. The fastening portion is provided at the through hole and the fixing hole. The limiting portion is located at a side of the filling member away from the second wall and abuts against the filling member.

[0025] In the above embodiment, when the fastener fixes the housing assembly and the first module, the limiting portion facilitates applying a force toward the second wall to the filling piece, thereby facilitating the filling piece to move toward the gap between the first wall and the second wall.

[0026] In one or more of the above embodiments, along the first direction, the distance between the first wall and the second wall is D0, 0mm<D0<5mm.

[0027] In the above embodiment, the portion of the filling piece is advantageously located in the gap between the first wall and the second wall.

[0028] In one or more of the above embodiments, 0 mm<D0<2 mm.

[0029] In one or more of the above embodiments, the filling piece is elastic.

[0030] In the above embodiment, the fastener is conducive to driving the filling piece to move.

[0031] In one or more of the above embodiments, a radial dimension of the first connecting segment is smaller than a radial dimension of the second connecting segment.

[0032] In one or more of the above embodiments, the housing assembly includes a mounting assembly, the fixing member is disposed on the mounting assembly, and the mounting assembly is configured to adjust a horizontal state of the fixing member.

[0033] In the above embodiment, when the energy storage device is placed in an uneven position, the installation assembly is used to adjust the horizontal state of the fixing member so that the first module remains stable, thereby reducing the possibility of the first module tipping over, thereby improving the safety performance of the energy storage device.

[0034] In one or more of the above embodiments, the housing assembly is provided with a protruding positioning portion, the first module is provided with a positioning hole, and the positioning portion is arranged in the positioning hole.

[0035] In the above embodiment, the cooperation between the positioning portion and the positioning hole is conducive to preliminary positioning when the first module is arranged on the housing assembly, thereby facilitating improving the accuracy of the filling member abutting against the second wall.

[0036] In one or more of the above embodiments, the housing assembly is provided with a first connector, the first module is provided with a second connector, and the first connector and the second connector are plug-connected.

[0037] The above embodiments are conducive to achieving electrical connection.

[0038] In a second aspect of the present application, a method for assembling an energy storage device is provided, comprising: arranging a first module on a housing assembly, arranging fasteners on a through hole and a fixing hole to fix the housing assembly and the first module, the fasteners driving a filling member to move toward a second wall, a portion of the filling member being located between the first wall and the second wall and abutting against the second wall.

[0039] In the above embodiment, during the process of fixing the shell assembly and the first module by the fastener, part of the filling piece is located between the first wall and the second wall and abuts against the second wall, so that the filling piece supports the fastener, which helps to reduce the deformation of the first module toward the first wall or the shell assembly toward the second wall, and further helps to improve the yield of the energy storage device after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 An overall schematic diagram of an energy storage device provided in one embodiment of the present application.

[0041] Figure 2 for Figure 1 Magnified view of region II.

[0042] Figure 3 An exploded schematic diagram of an energy storage device provided in one embodiment of the present application.

[0043] Figure 4 for Figure 3 Magnified view of region IV.

[0044] Figure 5 A partial cross-sectional schematic diagram of a front housing assembly and a first module provided in accordance with an embodiment of the present application.

[0045] Figure 6 A partial cross-sectional schematic diagram of a fastener fixing a housing assembly and a first module provided in an embodiment of the present application.

[0046] Figure 7 A partial exploded schematic diagram of a fastener fixing a housing assembly and a first module provided in an embodiment of the present application.

[0047] Figure 8 A partial cross-sectional schematic diagram of the connection member and the fixing member provided in one embodiment of the present application.

[0048] Main component symbols

[0049] Energy storage equipment 10

[0050] Housing component 11

[0051] Fixing parts 111

[0052] Mounting hole 1111

[0053] First Wall 1112

[0054] Recess 1113

[0055] Projection 1114

[0056] Filler 112

[0057] Through hole 1121

[0058] abutment surface 1122

[0059] Contact part 1123

[0060] Extension 1124

[0061] First connection hole 1125

[0062] Connector 113

[0063] First connection portion 1131

[0064] First connecting section 11311

[0065] The second connecting section 11312

[0066] Second connection portion 1132

[0067] Adjustment 114

[0068] The second connection hole 1141

[0069] Installation Kit 115

[0070] Base 1151

[0071] Mounting 1152

[0072] First module 12

[0073] Second Wall 121

[0074] Fixing hole 122

[0075] Fastener 13

[0076] Fastening portion 131

[0077] Limiting part 132

[0078] Natural length L1 of the contact portion

[0079] The length of the mounting hole L2

[0080] The length D1 of the first connecting member

[0081] Natural length of the adjustment piece D2

[0082] First direction X DETAILED DESCRIPTION

[0083] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0084] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "provided on" another component, it can be directly provided on the other component or there may be an intermediate component at the same time.

[0085] The terms "top," "bottom," and similar expressions are used herein for descriptive purposes only.

[0086] Unless otherwise specified, the term "plurality" as used herein means two or more than two.

[0087] The terms "first", "second", etc. are only used to distinguish different objects and shall not be understood as indicating or implying relative importance or implying the quantity, specific order or primary and secondary relationship of the technical features indicated.

[0088] The term "perpendicular" is used to describe an ideal state between two components. In actual production or use, two components may be in a state that is approximately perpendicular to each other. For example, in combination with numerical descriptions, perpendicularity can refer to the angle between two straight lines being within the range of 90°±10°, perpendicularity can also refer to the dihedral angle between two planes being within the range of 90°±10°, and perpendicularity can also refer to the angle between a straight line and a plane being within the range of 90°±10°.

[0089] The term "parallel" is used to describe an ideal state between two components. In actual production or use, two components may be approximately parallel. For example, in combination with numerical descriptions, parallel can refer to the angle between two straight lines being within the range of 180°±10°, parallel can also refer to the dihedral angle between two planes being within the range of 180°±10°, and parallel can also refer to the angle between a straight line and a plane being within the range of 180°±10°.

[0090] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0091] The first module and the shell assembly are not 100% fitted when installed, that is, there is a certain gap between the first module and the shell assembly. When the first module and the shell assembly are fixed by fasteners, the fasteners will apply opposite forces to the first module and the shell assembly, causing the first module and the shell assembly to deform toward the gap, thereby resulting in a poor yield of the energy storage device.

[0092] The present application discloses an energy storage device, including a shell assembly, a first module and a fastener. The shell assembly includes a fixing member and a filling member, the fixing member is provided with a mounting hole and has a first wall. Part of the filling member is arranged in the mounting hole, and the filling member is provided with a through hole. The first module is arranged in the shell assembly, the first module includes a second wall and a fixing hole, the second wall faces the first wall and is spaced from the first wall. Part of the filling member is located between the first wall and the second wall and abuts the second wall. The fastener is arranged in the through hole and the fixing hole, and the fastener fixes the shell assembly and the first module.

[0093] Since the fasteners are arranged in the through holes and the fixing holes, during the process of the fasteners fixing the shell assembly and the first module, part of the filling member is located between the first wall and the second wall and abuts against the second wall, so that the filling member supports the fasteners, which helps to reduce the deformation of the first module toward the first wall or the shell assembly toward the second wall, and further helps to improve the yield of the energy storage device.

[0094] Some embodiments of the present application will be described below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0095] Please refer to Figure 1 and Figure 3 One embodiment of the present application provides an energy storage device 10, including a housing assembly 11, a first module 12 and a fastener 13. The first module 12 is disposed in the housing assembly 11, and the fastener 13 fixes the housing assembly 11 and the first module 12. In some embodiments, the first module 12 includes a battery module, and the battery module can store electrical energy. In some embodiments, the first module 12 includes an electrical module, and the electrical module includes electronic components, which can conveniently control the charging process of the energy storage device 10.

[0096] In some embodiments, the housing assembly 11 includes a fixing member 111, and the fixing member 111 is provided with a mounting hole 1111 (see Figure 4 ) and having a first wall 1112.

[0097] In some embodiments, please refer to Figure 2 and Figure 4 The housing assembly 11 includes a filling member 112, a portion of the filling member 112 is disposed in the mounting hole 1111, and the filling member 112 is provided with a through hole 1121. In some embodiments, see Figure 2 The first module 12 includes a second wall 121, the second wall 121 faces the first wall 1112, and a gap is formed between the first wall 1112 and the second wall 121. The filler 112 is partially located between the first wall 1112 and the second wall 121 and abuts against the second wall 121 (see Figure 6 ).

[0098] In some embodiments, see Figure 2 , along the first direction X, the distance between the first wall 1112 and the second wall 121 is D0, 0mm<D0<5mm. It is beneficial for the filler 112 to be located in the gap between the first wall 1112 and the second wall 121. Optionally, 0mm<D0<2mm.

[0099] In some embodiments, see Figure 6The first module 12 includes a fixing hole 122, and the fastener 13 is provided in the through hole 1121 and the fixing hole 122. In the process of the fastener 13 fixing the housing assembly 11 and the first module 12, part of the filler 112 is located between the first wall 1112 and the second wall 121 and abuts against the second wall 121, so that the filler 112 supports the fastener 13, which is conducive to reducing the deformation of the first module 12 toward the first wall 1112 or the housing assembly 11 toward the second wall 121, and further conducive to improving the yield of the energy storage device 10.

[0100] In some embodiments, the filling member 112 is elastic, which is conducive to the fastener 13 driving the filling member 112 to move. Optionally, the filling member 112 includes a silicone member.

[0101] In some embodiments, the fastener 13 passes through the through hole 1121 and is fixed to the fixing hole 122 .

[0102] In some embodiments, the through hole 1121 is oval in shape, which is helpful to adjust the position of the fastener 13 relative to the through hole 1121 along the long axis direction of the oval through hole 1121, so that the fastener 13 can be more flexible in fixing the housing assembly 11 and the first module 12.

[0103] In some embodiments, see Figure 4 The filler 112 includes an abutting surface 1122, and the abutting surface 1122 abuts against the second wall 121. The abutting surface 1122 is configured to move from the mounting hole 1111 toward the second wall 121. After the abutting surface 1122 moves from the mounting hole 1111 toward the second wall 121, it is beneficial for the filler 112 to gradually be located between the first wall 1112 and the second wall 121 and abut against the second wall 121, so that the filler 112 can support the fastener 13.

[0104] In some embodiments, see Figure 4 Before the fastener 13 is provided, the filler 112 is away from the first wall 1112. By making the filler 112 away from the first wall 1112, it is helpful to reduce the interference of the first module 12 provided on the housing assembly 11.

[0105] In some embodiments, after the fastener 13 is set, the filler 112 moves toward the second wall 121 and abuts against the second wall 121 (see Figure 6 ).

[0106] In some embodiments, when a portion of the filler 112 is located between the first wall 1112 and the second wall 121 , the abutting surface 1122 is located between the first wall 1112 and the second wall 121 .

[0107] In some embodiments, the abutting surface 1122 is parallel to the second wall 121. The contact area between the abutting surface 1122 and the second wall 121 is large, which is beneficial to reduce the force per unit area of ​​the second wall 121 when the fastener 13 fixes the housing assembly 11 and the first module 12, thereby helping to reduce the deformation of the first module 12.

[0108] In some embodiments, see Figure 4 and Figure 6 The filling piece 112 includes an abutting portion 1123, and the abutting portion 1123 is partially located in the mounting hole 1111. In some embodiments, the abutting surface 1122 is provided on the abutting portion 1123. This is beneficial for making the abutting surface 1122 close to the second wall 121, so that the filling piece 112 is more convenient to abut the second wall 121.

[0109] In some embodiments, see Figure 4 and Figure 6 The filling member 112 includes an extension portion 1124, and the extension portion 1124 extends from the abutment portion 1123. In some embodiments, the extension portion 1124 is located on a side of the fixing member 111 away from the second wall 121. The extension portion 1124 is helpful to reduce the possibility of the fastener 13 entering the mounting hole 1111, thereby helping to improve the stability of the subsequent fastener 13 fixing the housing assembly 11 and the first module 12.

[0110] In some embodiments, the extending portion 1124 extends from the periphery of the abutting portion 1123 toward a direction away from the through hole 1121 .

[0111] In some embodiments, see Figure 6 , a portion of the fixing member 111 is located between the extending portion 1124 and the first module 12 , and the fastening member 13 abuts against the extending portion 1124 .

[0112] In some embodiments, the shape of the abutment portion 1123 matches the shape of the mounting hole 1111. For example, when the mounting hole 1111 is a circular hole, the abutment portion 1123 is a cylindrical shape.

[0113] In some embodiments, see Figure 5 The natural length L1 of the abutting portion 1123 is greater than the length L2 of the mounting hole 1111, and part of the abutting portion 1123 is located outside the mounting hole 1111. When the abutting portion 1123 is located in the mounting hole 1111, part of the abutting portion 1123 extends out of the mounting hole 1111 and abuts against the second wall 121.

[0114] In the present application, the natural length L1 of the abutting portion 1123 refers to the length of the abutting portion 1123 before the fastener 13 fixes the housing assembly 11 and the first module 12 .

[0115] In some embodiments, please refer to Figure 5 and Figure 6 The filling piece 112 is movably disposed in the mounting hole 1111. This is conducive to the filling piece 112 being away from the second wall 121 before the first module 12 is disposed in the housing assembly 11; and it is conducive to the filling piece 112 moving toward the second wall 121 and abutting against the second wall 121 when the fastener 13 fixes the housing assembly 11 and the first module 12.

[0116] In some embodiments, see Figure 7 The housing assembly 11 includes a connecting member 113, which is configured to cooperate with the fixing member 111 to limit the moving distance of the filling member 112. By limiting the moving distance of the filling member 112, it is helpful to reduce the possibility of the filling member 112 being separated from the mounting hole 1111 when moving.

[0117] In some embodiments, the connecting member 113 is movably connected to the fixing member 111. By moving the connecting member 113 toward or away from the fixing member 111, it is helpful to adjust the movement of the filling member 112 between the fixing member 111 and the connecting member 113, so that the filling member 112 can fill the gaps of different sizes between the second wall 121 and the first wall 1112.

[0118] In some embodiments, the fixing member 111 is provided with a recess 1113 , and the connecting member 113 is fixed to the recess 1113 .

[0119] In some embodiments, the fixing member 111 includes a protrusion 1114 , the protrusion 1114 is disposed in the recess 1113 , and the connecting member 113 is fixed to the protrusion 1114 .

[0120] In some embodiments, the connector 113 is threadedly connected to the protrusion 1114. The pitch of the thread is generally small, and twisting the connector 113 is conducive to finely adjusting the movable distance of the filling member 112.

[0121] In some embodiments, the connecting member 113 is a screw, a bolt, a stud or other components, and the protrusion 1114 is provided with a screw hole.

[0122] In some embodiments, see Figure 8 The first connection portion 1131 includes a first connection segment 11311 and a second connection segment 11312. The first connection segment 11311 is fixed to the convex portion 1114, the second connection segment 11312 abuts against the convex portion 1114, and a portion of the second connection segment 11312 is located outside the mounting hole 1111. By abutting the second connection segment 11312 against the convex portion 1114, when the first connection segment 11311 and the convex portion 1114 are fixed, it is helpful to reduce the possibility of the second connection segment 11312 entering the convex portion 1114, thereby reducing the risk of damage to the convex portion 1114.

[0123] In some embodiments, the radial dimension of the first connecting segment 11311 is smaller than the radial dimension of the second connecting segment 11312 .

[0124] In some embodiments, see Figure 7 The housing assembly 11 includes an adjusting member 114, which is disposed on a side of the filling member 112 close to the mounting hole 1111, and is configured to adjust the position of the filling member 112 relative to the first wall 1112. Before the first module 12 is disposed on the housing assembly 11, the adjusting member 114 is used to adjust the filling member 112 away from the first wall 1112 so that the filling member 112 does not protrude from the first wall 1112 toward the second wall 121, which is conducive to more conveniently reducing the interference of the filling member 112 with the first module 12 disposed on the housing assembly 11.

[0125] In some embodiments, the adjusting member 114 is disposed around the outside of the connecting member 113. The connecting member 113 and the recess 1113 are fixed and the adjusting member 114 is disposed around the outside of the connecting member 113, which is conducive to the stable cooperation of the connecting member 113 with the fixing member 111 to restrict the filling member 112, thereby facilitating a portion of the filling member 112 to be stably disposed in the mounting hole 1111.

[0126] In some embodiments, the adjusting member 114 is disposed around the outer side of the protrusion 1114 and the outer side of the second connecting section 11312 , which is helpful to reduce the possibility of the second connecting section 11312 swinging relative to the protrusion 1114 , thereby improving the stability of the second connecting section 11312 abutting against the protrusion 1114 .

[0127] In some embodiments, the adjusting member 114 is at least partially disposed in the recess 1113, and the adjusting member 114 abuts between the recess 1113 and the filling member 112. The recess 1113 provides a receiving space for the adjusting member 114, and when the fastener 13 fixes the housing assembly 11 and the first module 12, the adjusting member 114 provides a moving space for the filling member 112, so that the filling member 112 is partially located in the gap between the first wall 1112 and the second wall 121, and supports the fastener 13.

[0128] In some embodiments, the adjusting member 114 applies a force to the filling member 112 in a direction away from the second wall 121 .

[0129] In some embodiments, the extension portion 1124 is provided with a first connection hole 1125 , the adjustment member 114 is provided with a second connection hole 1141 , the connection member 113 passes through the first connection hole 1125 and the second connection hole 1141 , and is fixed to the recess 1113 .

[0130] In some embodiments, see Figure 7The connecting member 113 includes a first connecting portion 1131 and a second connecting portion 1132. The first connecting portion 1131 passes through the first connecting hole 1125 and the second connecting hole 1141, and is fixed to the recess 1113. A portion of the second connecting portion 1132 is located outside the recess 1113. The second connecting portion 1132 abuts against the extension portion 1124. The second connecting portion 1132 abuts against the extension portion 1124, which helps to reduce the possibility of the filling member 112 being separated from the mounting hole 1111 under the action of the adjusting member 114.

[0131] In some embodiments, the length D1 of the first connection portion 1131 is less than the natural length D2 of the adjusting member 114. After the first connection portion 1131 and the recess 1113 are fixed, the adjusting member 114 is compressed by the pressure of the connection member 113, which helps the adjusting member 114 to apply a force to the filling member 112 in a direction away from the second wall 121, thereby facilitating the filling member 112 to move away from the second wall 121.

[0132] In the present application, the natural length D2 of the adjusting member 114 refers to the length of the adjusting member 114 before being assembled to the recess 1113, when the adjusting member 114 is not stretched or compressed. Before the fastener 13 is provided, after the first connecting portion 1131 and the recess 1113 are fixed, the length of the adjusting member 114 becomes shorter under the pressure of the connecting member 113, and the adjusting member 114 is compressed, which is conducive to limiting the position of the filling member 112.

[0133] In some embodiments, the adjusting member 114 is an elastic member, and the elastic member is in a compressed state. The elastic member has a tendency to restore elastic deformation in a direction away from the second wall 121. When the adjusting member 114 is disposed between the filling member 112 and the fixing member 111, the filling member 112 has a tendency to move in a direction away from the second wall 121. In addition, when the connecting member 113 moves in a direction close to or away from the fixing member 111, the elastic member helps to make the filling member 112 close to the connecting member 113, so as to timely adjust the filling amount of the gap by the filling member 112.

[0134] In some embodiments, the elastic member is a spring, a spring sheet or other elastically deformable component.

[0135] In some embodiments, see Figure 7 The fastener 13 includes a fastening portion 131 and a limiting portion 132. The fastening portion 131 is provided in the through hole 1121 and the fixing hole 122, and the limiting portion 132 is located on the side of the filling member 112 away from the second wall 121, and abuts against the filling member 112. In the process of the fastener 13 fixing the housing assembly 11 and the first module 12, the limiting portion 132 is conducive to applying a force toward the second wall 121 to the filling member 112, so as to facilitate driving the filling member 112 to move toward the gap between the first wall 1112 and the second wall 121.

[0136] In some embodiments, the fastener 13 is threadedly connected to the fixing hole 122, and the fastener 13 is twisted and arranged in the fixing hole 122. This is helpful to control the strength of the fastener 13 to fix the housing assembly 11 and the first module 12.

[0137] In some embodiments, the fastener 13 is a screw, a bolt, a stud or other components, and the fixing hole 122 is a screw hole.

[0138] In some embodiments, please refer to Figure 1 and Figure 3 The housing assembly 11 includes a mounting assembly 115, a fixing member 111 is disposed on the mounting assembly 115, and the mounting assembly 115 is configured to adjust the horizontal state of the fixing member 111. When the energy storage device 10 is placed in an uneven position, the mounting assembly 115 is used to adjust the horizontal state of the fixing member 111 so that the first module 12 remains stable, thereby reducing the possibility of the first module 12 tipping over, thereby improving the safety performance of the energy storage device 10.

[0139] In some embodiments, see Figure 3 The mounting assembly 115 includes a base 1151 and a mounting member 1152 . The mounting member 1152 is movably disposed on the base 1151 and connected to the fixing member 111 .

[0140] In some embodiments, the mounting member 1152 protrudes from the base 1151 toward the fixing member 111, and the protruding height of the mounting member 1152 is adjustable. By changing the protruding height of the mounting member 1152 from the base 1151, the horizontal state of the fixing member 111 can be conveniently adjusted.

[0141] In some embodiments, the mounting member 1152 is threadedly connected to the base 1151. The pitch of the thread is generally small, which is conducive to finely changing the protruding height of the mounting member 1152, so that the protruding height of the mounting member 1152 can be adjusted to the desired position more quickly.

[0142] In some embodiments, the mounting member 1152 is a screw, a bolt, a stud or other components, and the base 1151 is provided with a screw hole.

[0143] In some embodiments, there are four mounting members 1152, which are respectively located at four corners of the base 1151. The four mounting members 1152 are conducive to forming a larger support range, so that the mounting assembly 115 can better support the fixing member 111 and the first module 12, further reducing the possibility of the first module 12 tipping over.

[0144] In some embodiments, see Figure 3The housing assembly 11 is provided with a protruding positioning portion 101, the first module 12 is provided with a positioning hole (not shown), and the positioning portion 101 is arranged in the positioning hole. The cooperation between the positioning portion 101 and the positioning hole is conducive to preliminary positioning when the first module 12 is arranged in the housing assembly 11, thereby facilitating the accuracy of the filling member 112 abutting against the second wall 121.

[0145] In some embodiments, see Figure 3 The housing assembly 11 is provided with a first connector 102, and the first module 12 is provided with a second connector (not shown), and the first connector 102 and the second connector are plugged and connected to achieve electrical connection. In some embodiments, the first connector 102 and the fixing member 111 are located on the same side of the housing assembly 11.

[0146] An embodiment of the present application provides an assembly method of the energy storage device 10 as described in any of the above embodiments, comprising the following steps:

[0147] S1: Install the first module 12 on the housing assembly 11 .

[0148] S2: The fastener 13 is set in the through hole 1121 and the fixing hole 122 to fix the shell assembly 11 and the first module 12. The fastener 13 drives the filling piece 112 to move toward the second wall 121. Part of the filling piece 112 is located between the first wall 1112 and the second wall 121 and abuts against the second wall 121.

[0149] In the above-mentioned assembly method, during the process of the fastener 13 fixing the shell assembly 11 and the first module 12, part of the filling piece 112 is located between the first wall 1112 and the second wall 121 and abuts against the second wall 121, so that the filling piece 112 supports the fastener 13, which helps to reduce the deformation of the first module 12 toward the first wall 1112 or the shell assembly 11 toward the second wall 121, and further helps to improve the yield of the energy storage device 10 after assembly.

[0150] In some embodiments, step S1 includes step S101: moving the filling member 112 away from the first wall 1112 , which is beneficial to reducing the interference of the filling member 112 with the first module 12 disposed on the housing assembly 11 .

[0151] In some embodiments, in step S101 , the filling member 112 is moved away from the first wall 1112 by the adjusting member 114 .

[0152] In some embodiments, in step S101 , the connecting member 113 is moved toward or away from the fixing member 111 to adjust the distance of the filling member 112 from the first wall 1112 .

[0153] In some embodiments, in step S2, the fastener 13 is threadedly connected to the fixing hole 122, and the fastener 13 is set in the fixing hole 122 by twisting, which is helpful to control the strength of the fastener 13 to fix the housing assembly 11 and the first module 12.

[0154] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not intended to limit the present application. As long as they are within the essential scope of the present application, appropriate changes and modifications to the above embodiments are within the scope disclosed in the present application.

Claims

1. An energy storage device, characterized in that: include: A housing assembly, the housing assembly comprising a fixing member and a filling member, the fixing member being provided with a mounting hole and having a first wall, a portion of the filling member being arranged in the mounting hole, and the filling member being provided with a through hole; a first module, provided in the housing assembly, the first module comprising a second wall and a fixing hole, the second wall facing the first wall and spaced apart from the first wall, a portion of the filling member being located between the first wall and the second wall and abutting against the second wall; A fastener is provided in the through hole and the fixing hole, and the fastener fixes the housing assembly and the first module.

2. The energy storage device according to claim 1, characterized in that: The filling piece includes an abutting surface abutting against the second wall, and the abutting surface is configured to move from the mounting hole toward the second wall.

3. The energy storage device according to claim 2, characterized in that: The housing assembly includes an adjusting member, which is disposed on a side of the filling member close to the mounting hole, and is configured to adjust a position of the filling member relative to the first wall.

4. The energy storage device according to claim 3, characterized in that: The adjusting member is an elastic member, and the elastic member is in a compressed state.

5. The energy storage device according to claim 3 or 4, characterized in that: The fixing member is provided with a recessed portion, the adjusting member is at least partially arranged in the recessed portion, and the adjusting member abuts between the recessed portion and the filling member.

6. The energy storage device according to claim 5, characterized in that: The filling member includes an abutment portion and an extension portion, the extension portion extends from the abutment portion, the abutment portion is partially located in the mounting hole, the extension portion is located on a side of the fixing member away from the second wall, and the abutment surface is provided on the abutment portion.

7. The energy storage device according to claim 6, characterized in that: The natural length of the abutting portion is greater than the length of the mounting hole.

8. The energy storage device according to claim 6 or 7, characterized in that: The extension portion is provided with a first connection hole, and the adjustment member is provided with a second connection hole; The housing assembly includes a connecting piece, the connecting piece passes through the first connecting hole and the second connecting hole, and is fixed to the recess; The adjusting member is arranged around the outer side of the connecting member.

9. The energy storage device according to claim 8, characterized in that: The connecting member includes a first connecting portion and a second connecting portion, the first connecting portion passes through the first connecting hole and the second connecting hole and is fixed to the recess, a portion of the second connecting portion is located outside the recess, and the second connecting portion abuts against the extension portion; The length of the first connecting portion is shorter than the natural length of the adjusting member.

10. The energy storage device according to claim 9, characterized in that: The first connecting portion includes a first connecting section and a second connecting section; The fixing member includes a convex portion provided on the concave portion, the first connecting section is fixed to the convex portion, the second connecting section abuts against the convex portion, and a portion of the second connecting section is located outside the mounting hole; The adjusting member is disposed around the outer side of the protrusion and the outer side of the second connecting section.

11. The energy storage device according to any one of claims 1 to 10, characterized in that: The fastener comprises a fastening portion and a limiting portion, wherein the fastening portion is arranged at the through hole and the fixing hole, and the limiting portion is located at a side of the filling member away from the second wall and abuts against the filling member.

12. A method for assembling an energy storage device according to any one of claims 1 to 11, characterized in that: include: The first module is arranged on the housing assembly; The fastener is arranged in the through hole and the fixing hole to fix the shell assembly and the first module. The fastener drives the filling member to move toward the second wall. Part of the filling member is located between the first wall and the second wall and abuts against the second wall.

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