Battery pack and energy storage device

Abstract

The utility model discloses a battery pack and an energy storage device, and relates to the technical field of energy storage. The battery pack comprises a shell, a battery cell assembly and a first supporting piece, the shell is provided with an accommodating cavity; the battery cell assembly is arranged in the containing cavity and abuts against the cavity wall of the containing cavity, the battery cell assembly comprises a first battery cell and a second battery cell, and the first battery cell and the second battery cell are arranged in a spaced mode in the first direction; the two ends, in the second direction, of the first supporting piece are connected with the cavity wall of the containing cavity, and the first supporting piece abuts against the position between the first battery cell and the second battery cell; the second direction is perpendicular to the first direction. According to the battery pack provided by the invention, the battery cell assembly is directly pressed and fixed through the cavity wall of the accommodating cavity of the shell and the first supporting piece, so that the battery cell assembly is stably mounted in the accommodating cavity, a battery module does not need to be formed through an end plate and a steel belt and then enters a box, and the number of assembly parts is effectively reduced, so that the weight and the cost are reduced; and the assembly process is simplified, and the production and assembly efficiency of the battery pack is improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to a battery pack and an energy storage device. Background Art

[0002] Most existing battery packs are constructed in the form of a cell-module-battery pack assembly. Multiple cells are first stacked, end plates are extruded, and bundled with steel strips to form a battery module. The entire battery module is then transported and installed into a battery box via bolts to form a battery pack.

[0003] However, this battery cell-module-battery pack assembly structure has a large number of components such as end plates and steel strips, which increases weight and cost and reduces production assembly efficiency. When the battery module is too heavy, additional lifting equipment is required to move the battery module into the battery box. Utility Model Content

[0004] In order to achieve the above-mentioned purpose, the present application is based on this, and the purpose of the present application is to provide a battery pack and an energy storage device, aiming to solve the technical problems in the prior art that the battery pack is heavy, costly and complicated to assemble.

[0005] The technical solutions adopted are as follows:

[0006] In a first aspect, an embodiment of the present application provides a battery pack, comprising:

[0007] A housing having a receiving cavity;

[0008] A battery cell assembly is disposed in the accommodating cavity and abuts against a cavity wall of the accommodating cavity, wherein the battery cell assembly comprises a first battery cell and a second battery cell, wherein the first battery cell and the second battery cell are spaced apart from each other along a first direction;

[0009] A first support member, wherein two ends of the first support member along the second direction are respectively connected to the cavity wall of the accommodating cavity, and the first support member abuts between the first battery cell and the second battery cell;

[0010] The second direction is perpendicular to the first direction.

[0011] In one embodiment of the first aspect, the shell includes a box body and a first cover body, the box body is provided with a first opening at one end along a third direction, the first cover body is covered on the first opening and connected to the box body, the first battery cell and the second battery cell are both in contact with the first cover body, and the third direction is perpendicular to the first direction and the second direction.

[0012] In one embodiment of the first aspect, a second support member is further included, a second opening is opened at one end of the box body along the first direction, the second support member is arranged at the second opening, and the two ends along the second direction are respectively connected to the cavity wall of the accommodating cavity, and the first battery cell is abutted against the second support member.

[0013] In one of the embodiments of the first aspect, the battery pack also includes a third support member, a third opening is opened at one end of the box body along the second direction, the third support member is arranged at the third opening, and the two ends along the first direction are respectively connected to the second support member and the cavity wall of the accommodating cavity, the first battery cell and the second battery cell are both abutted against the third support member, and the two ends of the first support member along the second direction are respectively connected to the third support member and the cavity wall of the accommodating cavity.

[0014] In one of the embodiments of the first aspect, the battery pack also includes a battery management module, and the shell also includes a second cover body, the battery management module is detachably arranged on a side of the second support member away from the first support member, and the second cover body is covered on the second opening and is detachably connected to the box body.

[0015] In one of the embodiments of the first aspect, the battery pack further includes a wiring harness isolator, which abuts between the battery cell assembly and the first cover and is provided with a clamping portion that cooperates with a conductive member of the battery cell assembly.

[0016] In one embodiment of the first aspect, the battery pack further includes an insulating member, wherein the insulating member is abutted between the wiring harness isolator and the first cover.

[0017] In one of the embodiments of the first aspect, a fourth support member and a fire-fighting module are provided on the side of the first cover body facing the accommodating cavity, the insulating member is abutted between the wiring harness isolation member and the fourth support member, and the fourth support member is provided with an avoidance channel for avoiding aerosol generated by the fire-fighting module.

[0018] In one embodiment of the first aspect, the shell further includes a third cover, and the third cover is disposed on the third opening and connected to the box.

[0019] In a second aspect, an embodiment of the present application further provides an energy storage device, comprising the battery pack described in any of the above embodiments.

[0020] The beneficial effects of the present application are as follows: the present application proposes a battery pack and an energy storage device, the battery pack includes a shell, a cell assembly and a first support member, and the cell assembly includes a first cell and a second cell. By arranging the first cell and the second cell in the housing cavity of the shell, and both abutting against the cavity wall of the housing cavity, the first cell and the second cell are directly pressed and fixed by the cavity wall of the housing cavity. At the same time, by connecting the two ends of the first support member along the second direction to the cavity wall of the housing cavity respectively, and abutting the first support member between the first cell and the second cell, the first cell and the second cell are isolated and supported by the first cell and the second cell, so as to cooperate with the cavity wall of the housing cavity to achieve complete pressing and fixing of the first cell and the second cell. The battery pack provided by the present application directly presses and fixes the cell assembly by the cavity wall of the housing cavity of the shell and the first support member, so that the cell assembly is firmly installed in the housing cavity, and there is no need to form a battery module through an end plate and a steel belt to re-enter the box, which effectively reduces the number of assembly parts, thereby reducing weight and cost, simplifying the assembly process, and improving the production and assembly efficiency of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A three-dimensional schematic diagram of a battery pack in some embodiments of the present application is shown;

[0023] Figure 2 A schematic diagram of a battery pack exploded from one perspective in some embodiments of the present application is shown;

[0024] Figure 3 Another perspective exploded schematic diagram of a battery pack in some embodiments of the present application is shown;

[0025] Figure 4 A perspective schematic diagram of a first cover body in some embodiments of the present application is shown;

[0026] Figure 5 Another perspective perspective schematic diagram of the first cover body in some embodiments of the present application is shown;

[0027] Figure 6 An exploded schematic diagram of an insulating member and a wiring harness isolator in some embodiments of the present application is shown;

[0028] Figure 7 A perspective schematic diagram of a box in some embodiments of the present application is shown;

[0029] Figure 8 Another perspective perspective schematic diagram of the box in some embodiments of the present application is shown;

[0030] Fig. 9 A perspective schematic diagram of a second cover body in some embodiments of the present application is shown;

[0031] Fig.10 Another perspective perspective schematic diagram of the second cover body in some embodiments of the present application is shown;

[0032] Fig.11 A three-dimensional schematic diagram of a third cover body in some embodiments of the present application is shown.

[0033] Description of main component symbols:

[0034] 100-battery pack; 110-housing; 111-accommodating cavity; 112-box; 1121-first opening; 1122-second opening; 1123-third opening; 1124-second recessed portion; 11241-raised portion; 113-first cover; 1131-fourth support member; 11311-avoidance passage; 1132-fire fighting module; 1133-hook member; 114-second cover; 1141-mounting hole; 1142-handle member; 1143-first recessed portion; 115-third cover; 120-battery cell assembly; 121-first battery cell; 122-second battery cell; 131-first support member; 132-second support member; 133-third support member; 140-battery management module; 150-wiring harness isolation member; 151-clamping portion; 152-positioning column; 160-insulating member; 161-positioning hole; 170-sealing assembly; 171-first sealing member; 172-second sealing member; 173-third sealing member; 180-human-computer interaction module. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0036] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In this application, 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; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] Embodiment 1

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the embodiment of the present application provides a battery pack 100, which is mainly used in energy storage devices. The battery pack 100 includes a housing 110, a battery cell assembly 120 and a first support member 131.

[0042] The housing 110 has a housing cavity 111, the battery cell assembly 120 is disposed in the housing cavity 111 and abuts against the cavity wall of the housing cavity 111, the battery cell assembly 120 includes a first battery cell 121 and a second battery cell 122, the first battery cell 121 and the second battery cell 122 are spaced apart along a first direction. Both ends of the first support member 131 along a second direction are respectively connected to the cavity wall of the housing cavity 111, the first support member 131 abuts between the first battery cell 121 and the second battery cell 122, and the second direction is perpendicular to the first direction.

[0043] The battery pack 100 provided in the embodiment of the present application is configured such that the first battery cell 121 and the second battery cell 122 are both disposed in the accommodating cavity 111 of the shell 110 and are both in contact with the cavity wall of the accommodating cavity 111, so that the first battery cell 121 and the second battery cell 122 are directly compressed and fixed by the cavity wall of the accommodating cavity 111.

[0044] At the same time, by connecting the two ends of the first support member 131 along the second direction to the cavity wall of the accommodating cavity 111 respectively, and abutting the first support member 131 between the first battery cell 121 and the second battery cell 122, the first battery cell 121 and the second battery cell 122 are isolated and supported, thereby cooperating with the cavity wall of the accommodating cavity 111 to achieve complete compression and fixation of the first battery cell 121 and the second battery cell 122.

[0045] The battery pack 100 provided in the present application directly compresses and fixes the battery cell assembly 120 through the cavity wall of the accommodating cavity 111 of the shell 110 and the first support member 131, so that the battery cell assembly 120 is firmly installed in the accommodating cavity 111, and there is no need to form a battery module through end plates and steel strips and then put it into the box, which effectively reduces the number of assembly parts, thereby reducing weight and cost, simplifying the assembly process, and improving the production and assembly efficiency of the battery pack 100.

[0046] Exemplarily, a plurality of the first battery cells 121 and the second battery cells 122 are provided, and the plurality of the first battery cells 121 and the plurality of the second battery cells 122 are sequentially arranged along the second direction to increase the battery capacity of the battery pack 100. The connection between the two ends of the first support member 131 along the second direction and the cavity wall of the accommodating cavity 111 can be screwed or welded, so that the first support member 131 is stably installed in the accommodating cavity 111, thereby achieving stable support for the first battery cell 121 and the second battery cell 122.

[0047] It should be noted that the first direction corresponds to Figure 2 The X direction in the second direction corresponds to Figure 2 in the Y direction.

[0048] like Figure 2 , Figure 4and Figure 7 As shown, in one embodiment of the present application, optionally, the shell 110 includes a box body 112 and a first cover body 113, and the box body 112 is provided with a first opening 1121 at one end along a third direction, and the first cover body 113 is covered on the first opening 1121 and connected to the box body 112, and the first battery cell 121 and the second battery cell 122 are both in contact with the first cover body 113, and the third direction is perpendicular to the first direction and the second direction.

[0049] In this embodiment, the first cover 113 and the box 112 can be connected by screws or welding to firmly connect the first cover 113 and the box 112, so that the first battery cell 121 and the second battery cell 122 are pressed and fixed in the third direction by the first cover 113.

[0050] It should be noted that the third party corresponds to Figure 2 The Z direction in .

[0051] like Figure 2 and Figure 7 As shown, in the above embodiment of the present application, optionally, a second support member 132 is further included, and a second opening 1122 is opened at one end of the box body 112 along the first direction, and the second support member 132 is arranged at the second opening 1122, and the two ends along the second direction are respectively connected to the cavity wall of the accommodating cavity 111, and the first battery cell 121 is abutted against the second support member 132.

[0052] In this embodiment, the connection between the two ends of the second support member 132 along the second direction and the cavity wall of the accommodating cavity 111 can be screw connection or welding, so that the second support member 132 is firmly set in the accommodating cavity 111, thereby pressing and fixing the first battery cell 121 in the first direction through the second support member 132.

[0053] Exemplarily, a positioning pin is provided on the cavity wall of the accommodating cavity 111, and a positioning through hole matching the positioning pin is provided on the second support member 132. The positioning pin and the positioning through hole effectively improve the installation accuracy and installation efficiency of the second support member 132. In other embodiments, a positioning through hole is provided on the cavity wall of the accommodating cavity 111, and a positioning pin matching the positioning through hole is provided on the second support member 132.

[0054] like Figure 2 and Figure 7As shown, in the above embodiment of the present application, optionally, the battery pack 100 also includes a third support member 133, and a third opening 1123 is opened at one end of the box body 112 along the second direction, and the third support member 133 is arranged at the third opening 1123, and the two ends along the first direction are respectively connected to the second support member 132 and the cavity wall of the accommodating cavity 111, the first battery cell 121 and the second battery cell 122 are both abutted against the third support member 133, and the two ends of the first support member 131 along the second direction are respectively connected to the third support member 133 and the cavity wall of the accommodating cavity 111.

[0055] In this embodiment, the connection between the two ends of the third support member 133 along the first direction and the second support member 132 and the cavity wall of the accommodating cavity 111 can be screw connection or welding, so that the third support member 133 is firmly set in the accommodating cavity 111, thereby pressing and fixing the first battery cell 121 and the second battery cell 122 in the second direction through the third support member 133.

[0056] Exemplarily, the cavity wall of the accommodating cavity 111 and the second support member 132 are both provided with positioning pins, and both ends of the third support member 133 are provided with positioning through holes that match the positioning pins. Through the positioning effect of the positioning pins and the positioning through holes, the installation accuracy and installation efficiency of the third support member 133 are effectively improved. In other embodiments, the cavity wall of the accommodating cavity 111 and the second support member 132 are both provided with positioning through holes, and both ends of the third support member 133 are provided with positioning pins that match the positioning through holes.

[0057] The connection between the two ends of the first support member 131 along the second direction and the third support member 133 and the cavity wall of the accommodating cavity 111 can be screwed or welded, so that the first support member 131 is firmly installed in the accommodating cavity 111, thereby achieving firm support for the first battery cell 121 and the second battery cell 122.

[0058] Exemplarily, positioning pins are provided on the cavity wall of the accommodating cavity 111 and the third support member 133, and positioning holes matching the positioning pins are provided at both ends of the first support member 131. The positioning pins and the positioning holes effectively improve the installation accuracy and efficiency of the first support member 131. In other embodiments, positioning holes are provided on the cavity wall of the accommodating cavity 111 and the third support member 133, and positioning pins matching the positioning holes are provided at both ends of the first support member 131.

[0059] like Figure 2 , Figure 7 and Fig. 9As shown, in the above embodiments of the present application, optionally, the battery pack 100 also includes a battery management module 140, and the shell 110 also includes a second cover body 114, and the battery management module 140 is detachably arranged on a side of the second support member 132 away from the first support member 131, and the second cover body 114 is covered on the second opening 1122 and is detachably connected to the box body 112.

[0060] In this embodiment, the detachable connection method can be a screw connection. By setting the battery management module 140 and the second cover body 114 to be detachably connected, after-sales maintenance or replacement of the battery management module 140 is facilitated.

[0061] like Figure 2 and Figure 6 As shown, in the above-mentioned embodiment of the present application, optionally, the battery pack 100 also includes a wiring harness isolator 150, which abuts between the battery cell assembly 120 and the first cover body 113, and is provided with a clamping portion 151 that cooperates with the conductive part of the battery cell assembly 120.

[0062] In this embodiment, the harness isolator 150 is disposed between the battery cell assembly 120 and the first cover 113, so that the first battery cell 121 and the second battery cell 122 are pressed and fixed in the third direction through the first cover 113 and the harness isolator 150. The harness isolator 150 is provided with a clamping portion 151 that matches the conductive member of the battery cell assembly 120, so that the harness isolator 150 is firmly installed on the battery cell assembly 120 through the clamping between the clamping portion 151 and the conductive member, which reduces the installation and fixing process of the harness isolator 150 and improves the installation efficiency.

[0063] Exemplarily, the conductive member is a conductive connecting sheet for electrically connecting the battery cells, and the clamping portion 151 is a clamping slot adapted to the conductive connecting sheet.

[0064] It should be noted that a wiring harness placement groove is provided on the side of the wiring harness isolator 150 away from the battery cell assembly 120 , and the wiring harness placement groove is used to place signal sampling lines for collecting signals such as voltage and temperature.

[0065] like Figure 2 and Figure 6 As shown, in the above embodiment of the present application, optionally, the battery pack 100 further includes an insulating member 160 , and the insulating member 160 abuts between the wiring harness isolator 150 and the first cover 113 .

[0066] In this embodiment, the insulating member 160 is abutted between the harness spacer 150 and the first cover 113 to insulate the conductive member of the battery cell assembly 120 .

[0067] like Figure 2 and Figure 5 As shown, in the above-mentioned embodiment of the present application, optionally, a fourth support member 1131 and a fire-fighting module 1132 are provided on the side of the first cover body 113 facing the accommodating cavity 111, the insulating member 160 abuts between the wiring harness isolation member 150 and the fourth support member 1131, and the fourth support member 1131 is provided with an avoidance channel 11311 for avoiding the aerosol generated by the fire-fighting module 1132.

[0068] In this embodiment, the fourth support member 1131 and the fire protection module 1132 can be connected to the first cover 113 by welding or screws. By arranging the fourth support member 1131 on the side of the first cover 113 facing the accommodating cavity 111, the structural strength of the first cover 113 is strengthened, thereby improving the stability of the first battery cell 121 and the second battery cell 122 being pressed and fixed in the third direction.

[0069] By opening an avoidance channel 11311 on the fourth support member 1131 for avoiding the aerosol generated by the fire-fighting module 1132, a quick channel is provided for the aerosol of the fire-fighting module 1132. In this way, when thermal runaway occurs in the battery cell, the fire-fighting module 1132 can generate aerosol and pass through the avoidance channel 11311 to quickly reach the surface of the battery cell, thereby realizing the fire-fighting function in the first place.

[0070] like Figure 2 and Fig.11 As shown, in the above embodiment of the present application, optionally, the housing 110 further includes a third cover 115 , and the third cover 115 is covered on the third opening 1123 and connected to the box body 112 .

[0071] Exemplarily, the third cover 115 and the box 112 may be connected by screws or welding, so that the third cover 115 is firmly connected to the box 112. The third cover 115 may be a base, and a support stand is provided on one side of the base away from the accommodating cavity 111, so that the battery pack 100 can be stably placed on the ground or on the placement platform of the energy storage device through the support stand.

[0072] like Figure 5 , Figure 7 , Fig.10 and Fig.11As shown, in the above embodiment of the present application, optionally, the battery pack 100 also includes a sealing assembly 170, and the sealing assembly 170 includes a first seal 171, a second seal 172 and a third seal 173, the first seal 171 abuts between the first cover body 113 and the end wall of the first opening 1121, the second seal 172 abuts between the second cover body 114 and the end wall of the second opening 1122, and the third seal 173 abuts between the third cover body 115 and the end wall of the third opening 1123.

[0073] Therefore, by providing the first sealing member 171 , the second sealing member 172 and the third sealing member 173 , the first opening 1121 , the second opening 1122 and the third opening 1123 are sealed to prevent dust and water, thereby extending the service life of the battery pack 100 .

[0074] Exemplarily, the first sealing member 171 , the second sealing member 172 and the third sealing member 173 may all be sealing rings.

[0075] like Figure 4 As shown, in the above embodiment of the present application, optionally, a hook member 1133 is provided on a side of the first cover body 113 away from the accommodating cavity 111 .

[0076] In this embodiment, a hook member 1133 is provided on one side of the first cover 113 away from the accommodating cavity 111 , so that the battery pack 100 can be stably hung on a wall or a hanging surface of an energy storage device through the hook member 1133 .

[0077] like Figure 2 , Fig. 9 and Fig.10 As shown, in the above embodiment of the present application, optionally, the battery pack 100 also includes a human-computer interaction module 180, the second cover body 114 is provided with a mounting hole 1141, and the human-computer interaction module 180 is passed through the mounting hole 1141 and is electrically connected to the battery management module 140.

[0078] Exemplarily, the human-computer interaction module 180 may include a power button, a positive and negative output interface, a signal communication device, and the like.

[0079] like Figure 2 and Fig. 9 As shown, in the above embodiment of the present application, optionally, a handle 1142 is provided on a side of the second cover body 114 away from the accommodating cavity 111 .

[0080] In this embodiment, a handle 1142 is provided on the side of the second cover 114 away from the accommodating cavity 111, so that the handle 1142 can be used as a hand-held handle of the second cover 114 to facilitate the installation and disassembly of the second cover 114, and can also be used as a carrying handle for the entire battery pack 100 to facilitate the movement, installation and disassembly of the battery pack 100.

[0081] like Figure 2 and Fig. 9 As shown, in the above embodiment of the present application, optionally, the side of the second cover 114 away from the accommodating cavity 111 is concavely deformed toward the direction close to the accommodating cavity 111 to form a first concave portion 1143. In this way, on the one hand, the structural strength of the second cover 114 is strengthened to improve the use stability of the human-computer interaction module 180 and the handle 1142, and on the other hand, it is helpful to reduce the thickness of the second cover 114 to reduce weight and material costs.

[0082] like Figure 3 and Figure 8 As shown, in the above embodiment of the present application, optionally, the side of the box body 112 away from the accommodating cavity 111 is concavely deformed toward the direction close to the accommodating cavity 111 to form a second concave portion 1124. In this way, on the one hand, the structural strength of the box body 112 is strengthened, which is conducive to resisting the expansion and deformation of the battery cell, and on the other hand, it is conducive to reducing the thickness of the box body 112 to reduce weight and material costs.

[0083] like Figure 3 and Figure 8 As shown, in the above embodiment of the present application, optionally, the side of the second recessed portion 1124 close to the accommodating cavity 111 is recessed and deformed in a direction away from the accommodating cavity 111 to form a protruding portion 11241. In this way, on the one hand, the structural strength of the box body 112 is further strengthened, which is further conducive to resisting the expansion and deformation of the battery cell, and on the other hand, it is further conducive to reducing the thickness of the box body 112, so as to further reduce the weight and material cost.

[0084] like Figure 6 As shown, in the above-mentioned embodiment of the present application, optionally, a positioning column 152 is provided on the side of the wiring harness isolator 150 away from the battery cell assembly 120, and the insulating member 160 is provided with a positioning hole 161 adapted to the positioning column 152, and the insulating member 160 is provided with an adhesive layer (not shown) on the side facing the wiring harness isolator 150.

[0085] Thus, the positioning function of the positioning column 152 and the positioning hole 161 effectively improves the installation accuracy and installation efficiency of the insulating member 160. The insulating member 160 is provided with an adhesive layer on the side facing the wiring harness isolator 150, so that the insulating member 160 is firmly installed on the wiring harness isolator 150 through the adhesive layer, thereby improving the insulation stability of the conductive member of the battery cell assembly 120.

[0086] Embodiment 2

[0087] A second embodiment of the present application further provides an energy storage device, comprising the battery pack 100 described in any one of the first embodiments above.

[0088] The energy storage device has the battery pack 100 described in the first embodiment, and thus has all the beneficial effects of the battery pack 100 described in the first embodiment, which will not be described in detail here.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0090] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A battery pack, characterized in that: include: A housing having a receiving cavity; A battery cell assembly is disposed in the accommodating cavity and abuts against a cavity wall of the accommodating cavity, wherein the battery cell assembly comprises a first battery cell and a second battery cell, wherein the first battery cell and the second battery cell are spaced apart from each other along a first direction; A first support member, wherein two ends of the first support member along the second direction are respectively connected to the cavity wall of the accommodating cavity, and the first support member abuts between the first battery cell and the second battery cell; The second direction is perpendicular to the first direction.

2. The battery pack according to claim 1, characterized in that: The shell includes a box body and a first cover body, the box body has a first opening at one end along a third direction, the first cover body is covered on the first opening and connected to the box body, the first battery cell and the second battery cell are both in contact with the first cover body, and the third direction is perpendicular to the first direction and the second direction.

3. The battery pack according to claim 2, characterized in that: It also includes a second support member, wherein a second opening is formed at one end of the box body along the first direction, the second support member is arranged at the second opening, and both ends along the second direction are respectively connected to the cavity wall of the accommodating cavity, and the first battery cell abuts against the second support member.

4. The battery pack according to claim 3, characterized in that: The battery pack also includes a third support member, a third opening is formed at one end of the box body along the second direction, the third support member is arranged at the third opening, and the two ends along the first direction are respectively connected to the second support member and the cavity wall of the accommodating cavity, the first battery cell and the second battery cell are both abutted against the third support member, and the two ends of the first support member along the second direction are respectively connected to the third support member and the cavity wall of the accommodating cavity.

5. The battery pack according to claim 3, characterized in that: The battery pack also includes a battery management module, and the shell also includes a second cover. The battery management module is detachably arranged on a side of the second support member away from the first support member, and the second cover is covered on the second opening and is detachably connected to the box.

6. The battery pack according to claim 2, characterized in that: The battery pack further includes a wiring harness isolator, which is abutted between the battery cell assembly and the first cover and is provided with a clamping portion that cooperates with the conductive member of the battery cell assembly.

7. The battery pack according to claim 6, characterized in that: The battery pack further includes an insulating member abutting between the wiring harness spacer and the first cover.

8. The battery pack according to claim 7, characterized in that: A fourth support member and a fire-fighting module are provided on the side of the first cover body facing the accommodating cavity, the insulating member is abutted between the wiring harness isolating member and the fourth support member, and the fourth support member is provided with an escape channel for avoiding aerosol generated by the fire-fighting module.

9. The battery pack according to claim 4, characterized in that: The shell body also includes a third cover body, which is disposed on the third opening and connected to the box body.

10. An energy storage device, characterized in that: A battery pack comprising any one of claims 1 to 9.

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