Battery module, battery pack, energy storage cabin and electric equipment

Abstract

The utility model relates to a battery module, a battery pack, an energy storage cabin and electric equipment. The electric equipment comprises an electric device and the battery pack or the energy storage cabin. The energy storage cabin comprises the battery pack. The battery comprises an upper cover, a box body and the battery module, the battery module is arranged in the box body, and the upper cover covers the box body. The battery module comprises a plurality of single batteries, a module frame, an end plate and a fixed bracket, wherein a containing cavity is defined by the module frame, the batteries are sequentially arranged and placed in the containing cavity, hoisting openings are formed in the side face, in the arrangement direction of the batteries, of the module frame, the hoisting openings can be formed in the two ends, in the length direction, of the module frame, and at least one hoisting opening can be formed in any end of the module frame; the end plate is connected with the module frame and is arranged in the accommodating cavity; the fixing support is arranged on the top of the end plate and used for being connected with a hanging ring.

Description

Technical Field

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

[0002] The battery packs in the traditional energy storage compartment are arranged back to back, such as Figure 1 As shown, the battery pack needs to be maintained on both sides of the prefabricated cabin. According to relevant regulations, a 3000mm fire passage needs to be reserved for the maintenance passage, which occupies a large space and has high land costs. In addition, when maintaining the battery pack in the energy storage cabin, the operation and maintenance personnel need to maintain the battery pack on both sides of the energy storage cabin respectively. Maintenance on both sides will cause the operation and maintenance personnel to run around, resulting in a waste of human resources and low maintenance efficiency.

[0003] BACKGROUND OF THE PRESENT APPLICATION The above information disclosed is only for understanding the background of the concept of the present application and may contain information that does not constitute the prior art. Utility Model Content

[0004] Based on this, in order to address the above problems, it is necessary to provide a battery module, a battery pack, an energy storage compartment and electrical equipment.

[0005] A battery module, comprising:

[0006] Multiple single cells;

[0007] A module frame, wherein the module frame encloses a receiving cavity, the multiple batteries are arranged in sequence and placed in the receiving cavity, and the module frame is provided with a hoisting opening on a side in the arrangement direction of the multiple batteries;

[0008] An end plate, the end plate is connected to the module frame and is disposed in the accommodating cavity;

[0009] A fixed bracket is arranged on the top of the end plate and is used to be connected to a lifting ring.

[0010] Before describing the technical effects that can be achieved by the embodiments of the present application, it should be noted that when two battery packs are combined into one battery pack in the length direction, the length of the new battery pack can be considered to be twice that of the original one, and the length of the battery module is also twice that of the original one. Due to the increase in length, the battery pack and the battery module are very likely to be deformed during hoisting. Secondly, the length and area of ​​the upper cover of the battery pack are also increased, and the internal volume of the battery pack cavity is also increased. When thermal runaway occurs inside the battery pack, heat accumulates inside the battery pack, and the volume of the battery pack expands. The battery pack cover is longer and larger and more prone to deformation. The deformation and expansion of the cover prevents heat from being discharged through the battery pack explosion-proof valve in time, causing heat accumulation and inducing other battery cells to be heated, leading to thermal runaway, and further causing heat diffusion. In addition, the battery pack cover may be pushed up and deformed under the expansion and squeezing of the thermal runaway gas. The connection between the battery pack cover and the box may be torn due to the upward deformation of the cover, resulting in rupture of the connection position and failure of the seal. Oxygen in the outside air enters the battery pack, which can easily cause fire or even explosion, and the safety risk is high.

[0011] In the face of the above problems, the battery module of the present application at least includes the following beneficial effects: It is understandable that the traditional lifting method generally sets lifting ports at both ends of the battery module for lifting operations, but when the battery module of the battery pack is long, the middle part of the battery module is not subjected to tension, while the two ends of the battery module are pulled up, and the battery module is prone to bending and deformation in the middle; the battery module of the present application adds an end plate to the module frame, and the end plate can be fixed with a lifting ring, and the lifting ports connected to the lifting ring in the middle of the module frame and the side of the module frame are distributed more dispersedly. When lifting the battery module, this can make the battery module more evenly stressed, that is, the module frame is evenly stressed in the length direction, which can reduce the risk of deformation of the battery module due to excessive stress concentration.

[0012] In one embodiment, the fixing bracket is detachably connected to the top of the end plate. The fixing bracket can be manufactured separately from the end plate, and the fixing bracket can be connected to the top of the end plate during installation, and the fixing bracket is easy to disassemble and assemble, which is beneficial for later maintenance.

[0013] In one embodiment, a connection hole is provided on the side of the fixing bracket facing away from the end plate, and the connection hole is used to be threadedly connected with the lifting ring or fastener. During lifting, the lifting ring is threadedly connected with the connection hole of the fixing bracket, and after the lifting is completed, the lifting ring can be removed, which is convenient for disassembly and assembly, and the upper cover of the battery pack is subsequently set to the battery module, and the upper cover will not have structural interference with the lifting ring, or prevent the upper cover from wasting space for loading batteries in order to avoid the lifting height of the lifting ring.

[0014] In one of the embodiments, a fixing hole is opened on the top of the end plate, and the fixing bracket at least partially extends into the fixing hole and is threadedly connected to the hole wall of the fixing hole.

[0015] In one embodiment, the fixed bracket includes a fixed portion, a force-applying portion and a threaded portion, the fixed portion and the threaded portion are arranged on opposite sides of the force-applying portion, the threaded portion extends into the fixing hole and is threadedly connected to the hole wall of the fixing hole, the fixing portion is provided with the connecting hole on the side facing away from the end plate, the force-applying portion is located outside the fixing hole, and the outer peripheral surface of the force-applying portion is used for clamping by an operating tool to drive the threaded portion to rotate relative to the fixing hole. Such a structural arrangement allows the force-applying portion to always be located outside the fixing hole. When disassembling and assembling the fixing bracket, an operating tool such as a wrench can be used to clamp the outer peripheral surface of the force-applying portion, that is, the force-applying portion provides a better force area for the external environment to operate the fixing bracket to rotate, which is convenient for disassembly and assembly and is beneficial for later maintenance.

[0016] The present application also provides a battery pack, which includes an upper cover, a box body, and a battery module as described in any of the above embodiments, wherein the battery module is disposed in the box body, and the upper cover is disposed on the box body. The above battery includes the battery module described in each of the above embodiments, so it also includes at least the beneficial effects of the battery module, which will not be repeated here.

[0017] In one of the embodiments, the battery pack further includes a fastener, the upper cover is provided with a through hole, and the fastener is passed through the upper cover through the through hole to be detachably connected to the fixing bracket. When thermal runaway occurs in the battery pack, the air pressure in the battery pack increases, and the middle part of the upper cover is more likely to deform. However, the middle part of the upper cover of the battery pack of the present application has been fixed to the fixing bracket in the middle part of the module frame by fasteners, which is equivalent to applying a pressure close to the battery pack body in the middle part of the upper cover, which can reduce the risk of the middle part of the upper cover being more easily lifted and deformed. Then, the heat and flammable dangerous gas that can be contained in the battery pack can be controlled within a certain range, and the air pressure in the battery pack also increases rapidly, so that the explosion-proof valve of the battery pack can be opened in time according to the design time, thereby discharging heat and flammable gas out of the battery pack, avoiding heating of normal batteries due to heat accumulation and inducing heat diffusion.

[0018] In one embodiment, the battery pack further includes a sealing ring, the fixing bracket includes a fixing portion, a force-applying portion, and a threaded portion, the fixing portion and the threaded portion are arranged on opposite sides of the force-applying portion, the threaded portion extends into the fixing hole and is threadedly connected to the hole wall of the fixing hole, the force-applying portion is located outside the fixing hole, and the outer peripheral surface of the force-applying portion is used for clamping by an operating tool to drive the threaded portion to rotate relative to the fixing hole, the fixing portion is detachably connected to the fastener, and the sealing ring is sealed and abutted between the fixing portion and the upper cover. The sealing ring can have a better sealing effect on the gap between the fixing bracket and the surface of the upper cover to prevent the gas in the battery pack from leaking out.

[0019] In one embodiment, a sealing groove is formed on one side of the fixing portion facing the upper cover, and the sealing ring is disposed in the sealing groove and abuts against the surface of the upper cover. The groove wall of the sealing groove can abut against the sealing ring to limit the position, thereby preventing the sealing ring from shifting and further ensuring its sealing effect.

[0020] In one embodiment, the cross-sectional profile of the force-applying portion is larger than the cross-sectional profile of the fixing hole to limit the force-applying portion from entering the fixing hole along the axial direction of the fixing hole. Such a structural setting can prevent the force-applying portion from entering the fixing hole, that is, the force-applying portion is always located outside the fixing hole, providing a better force point for the operating tool during disassembly and assembly.

[0021] In one embodiment, the fastener is a bolt.

[0022] In one embodiment, the battery pack further includes a gasket, and the fastener is sequentially inserted through the gasket and the upper cover to be connected to the fixing bracket. When the fastener is a bolt, for example, the gasket can increase the friction between the fastener and the upper cover, and the contact area between the gasket and the upper cover surface is larger, which can avoid deformation of the upper cover caused by excessive stress concentration. In addition, the gasket can also play a sealing role to a certain extent.

[0023] In one of the embodiments, a connecting hole is provided on a side of the fixing bracket facing away from the end plate, and one end of the fastener extends into the connecting hole and is threadedly connected to the fixing bracket.

[0024] The present application also provides an energy storage compartment, which includes a battery pack as described in any of the above embodiments. The above energy storage compartment includes the battery module and battery pack described in the above embodiments, so it also includes at least the beneficial effects of the battery module and the battery pack, which will not be repeated here.

[0025] The present application also provides an electrical device, which includes an electrical device and a battery pack as described in any of the above embodiments or an energy storage compartment as described in any of the above embodiments. The above electrical device includes the battery module and battery pack as described in the above embodiments, so it also includes at least the beneficial effects of the battery module and the battery pack, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic diagram of the structure of a traditional battery pack.

[0028] Figure 2 A schematic diagram of the structure of an energy storage compartment and a battery pack therein provided in one embodiment of the present application.

[0029] Figure 3 A partial cross-sectional view of a battery pack provided in accordance with an embodiment of the present application.

[0030] Figure 4 An exploded schematic diagram of a battery pack provided in accordance with an embodiment of the present application.

[0031] Figure 5 A structural schematic diagram of a battery module provided in yet another embodiment of the present application.

[0032] Figure 6 A cross-sectional view of a battery module provided in yet another embodiment of the present application.

[0033] Figure 7 for Figure 6 A partially enlarged schematic diagram of the battery module shown in the embodiment.

[0034] Figure 8 A partial enlarged cross-sectional view of a battery pack provided in yet another embodiment of the present application.

[0035] Fig. 9 A structural stereogram of an energy storage cabin provided in yet another embodiment of the present application.

[0036] Fig.10 A schematic diagram of the structure of an electrical device provided in one embodiment of the present application.

[0037] Reference numerals:

[0038] 1. Electrical equipment; 2. Energy storage compartment; 3. Battery pack; 4. Battery module; 5. Battery; 6. Electrical device; 100. Module frame; 110. Lifting port; 200. End plate; 210. Fixing hole; 300. Fixing bracket; 310. Fixing part; 311. Connecting hole; 312. Sealing groove; 320. Force-applying part; 330. Threaded part; 400. Lifting ring; 500. Fastener; 600. Sealing ring; 700. Upper cover; 710. Through hole; 800. Box; 900. Gasket. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] The battery packs in the traditional energy storage compartment are arranged back to back, such as Figure 1 As shown, the battery pack needs to be maintained on both sides of the prefabricated cabin. According to relevant regulations, a 3000mm fire passage needs to be reserved for the maintenance passage, which occupies a large space and has high land costs. In addition, when maintaining the battery pack in the energy storage cabin, the operation and maintenance personnel need to maintain the battery pack on both sides of the energy storage cabin respectively. Maintenance on both sides will cause the operation and maintenance personnel to run around, resulting in a waste of human resources and low maintenance efficiency.

[0041] Therefore, two conventional back-to-back battery packs can be made into one battery pack, such as Figure 2 As shown, however, the production of a battery pack also increases the length of the battery pack accordingly, and the length of the battery module in the battery pack is also increased, which causes the battery module to be easily deformed during hoisting.

[0042] See also Figure 4 , Figure 5 , Figure 6 and Figure 7In some embodiments, the present application provides a battery module 4, which includes a plurality of single cells 5, a module frame 100, an end plate 200 and a fixing bracket 300. The module frame 100 is surrounded by a receiving cavity, and the plurality of cells 5 are arranged in sequence and placed in the receiving cavity. The module frame 100 is provided with a lifting port 110 on the side in the arrangement direction of the plurality of cells. The lifting port 110 can be provided at both ends of the module frame 100 in the length direction, and at least one lifting port 110 can be provided at either end; the end plate 200 is connected to the module frame 100 and is provided in the receiving cavity; the fixing bracket 300 is provided on the top of the end plate 200, and the fixing bracket 300 is used to connect with the lifting ring 400.

[0043] Before describing the technical effects that can be achieved by the embodiments of the present application, it is necessary to explain that Figure 1 The two battery packs 3 shown are combined in the length direction as shown in FIG. Figure 2 As shown in the figure, the length of the new battery pack 3 can be considered to be twice that of the original one, and the length of the battery module 4 is also twice that of the original one. Due to the increase in length, the battery pack 3 and the battery module 4 are very likely to be deformed during hoisting. Secondly, the length and area of ​​the upper cover 700 of the battery pack 3 are also increased, and the internal volume of the battery pack 3 cavity is also increased. When thermal runaway occurs inside the battery pack 3, heat accumulates inside the battery pack 3, and the volume inside the battery pack 3 expands. Since the upper cover 700 of the battery pack 3 is longer and larger, it is easier to deform, and the deformation of the upper cover 700 The expansion causes the heat to be unable to be discharged through the explosion-proof valve of the battery pack 3 in time, causing heat accumulation, inducing other battery cells to be heated and causing thermal runaway, which in turn causes heat diffusion to occur; in addition, the upper cover 700 of the battery pack 3 may be pushed up and deformed under the expansion and squeezing of the thermal runaway gas, and the connection between the upper cover 700 of the battery pack 3 and the box body 800 may be torn due to the upward deformation of the upper cover 700, resulting in rupture of the connection position, resulting in failure of the seal, and oxygen in the outside air entering the battery pack 3, which can easily cause fire or even explosion, and the safety risk is relatively high.

[0044] In the face of the above problems, the battery module 4 of the present application at least includes the following beneficial effects: It is understandable that the traditional lifting method generally sets lifting ports 110 at both ends of the battery module 4 for lifting operations, but when the battery module 4 of the battery pack 3 is relatively long, the middle part of the battery module 4 is not subjected to tension, and the two ends of the battery module 4 are pulled up, then the battery module 4 is prone to bending and deformation in the middle; and the battery module 4 of the present application adds an end plate 200 to the module frame 100, and the end plate 200 can be fixed with a lifting ring 400, and the lifting ring 400 connected to the middle part of the module frame 100 and the lifting port 110 on the side of the module frame 100 are distributed more dispersedly. When lifting the battery module 4, this can make the battery module 4 more evenly stressed, that is, the module frame 100 is evenly stressed in the length direction, which can reduce the risk of deformation of the battery module 4 due to excessive stress concentration.

[0045] See also Figure 7 and Figure 8 In some embodiments, the fixing bracket 300 is provided with a connection hole 311 on the side facing away from the end plate 200, and the connection hole 311 is used to be threadedly connected with the lifting ring 400 or the fastener 500. During hoisting, the lifting ring 400 is threadedly connected with the connection hole 311 of the fixing bracket 300, and after the hoisting is completed, the lifting ring 400 can be removed, which is convenient for disassembly and assembly, and the upper cover 700 of the battery pack 3 is subsequently placed on the battery module 4, and the upper cover 700 will not have structural interference with the lifting ring 400, or prevent the upper cover 700 from wasting space for loading the battery 5 in order to avoid the lifting height of the lifting ring 400.

[0046] Specifically, Figure 7 and Figure 8 As shown, in some embodiments, the fixing bracket 300 is detachably connected to the top of the end plate 200. The fixing bracket 300 can be manufactured separately from the end plate 200, and the fixing bracket 300 can be connected to the top of the end plate 200 during installation, and it is easy to disassemble and assemble, which is conducive to later maintenance.

[0047] More specifically, if Figure 7 and Figure 8 As shown, in some embodiments, a fixing hole 210 is opened on the top of the end plate 200 , and the fixing bracket 300 at least partially extends into the fixing hole 210 and is threadedly connected to the hole wall of the fixing hole 210 .

[0048] More specifically, if Figure 7 and Figure 8As shown, in some embodiments, the fixing bracket 300 includes a fixing portion 310, a force-applying portion 320 and a threaded portion 330, the fixing portion 310 and the threaded portion 330 are arranged on opposite sides of the force-applying portion 320, the threaded portion 330 extends into the fixing hole 210 and is threadedly connected to the hole wall of the fixing hole 210, the fixing portion 310 is provided with the connecting hole 311 on the side facing away from the end plate 200, the force-applying portion 320 is located outside the fixing hole 210, and the outer peripheral surface of the force-applying portion 320 is used for being clamped by an operating tool to drive the threaded portion 330 to rotate relative to the fixing hole 210. Such a structural setting allows the force-applying part 320 to always be located outside the fixing hole 210. When disassembling and assembling the fixed bracket 300, an operating tool such as a wrench can be used to clamp the outer circumferential surface of the force-applying part 320. That is, the force-applying part 320 provides a better force-applying area for the rotation of the fixed bracket 300 under external environment operation, which is convenient for disassembly and assembly and facilitates later maintenance.

[0049] In addition, as shown in Figure Figure 3 and Figure 4 As shown, the present application further provides a battery pack 3, which includes an upper cover 700, a box body 800 and a battery module 4 as described in any of the above embodiments, wherein the battery module 4 is disposed in the box body 800, and the upper cover 700 is disposed on the box body 800. The above battery pack 3 includes the battery module 4 described in the above embodiments, so it also includes at least the beneficial effects of the battery module 4, which will not be repeated here.

[0050] Furthermore, if Figure 8 As shown, in some embodiments, the battery pack 3 further includes a fastener 500 , the upper cover 700 is provided with a through hole 710 , and the fastener 500 is passed through the upper cover 700 through the through hole 710 to be detachably connected to the fixing bracket 300 . When thermal runaway occurs in the battery pack 3, the air pressure in the battery pack 3 increases, and the middle part of the upper cover 700 is more likely to deform. However, the middle part of the upper cover 700 of the battery pack 3 of the present application has been fixed to the fixing bracket 300 in the middle part of the module frame 100 by the fastener 500, which is equivalent to applying a pressure close to the battery pack 3 box 800 in the middle part of the upper cover 700, which can reduce the risk of the middle part of the upper cover 700 being more easily lifted and deformed. Then, the heat and flammable dangerous gases that can be contained in the battery pack 3 can be controlled within a certain range, and the air pressure in the battery pack 3 also increases rapidly, so that the explosion-proof valve of the battery pack 3 can be opened in time according to the design time, thereby discharging the heat and flammable gases out of the battery pack 3, avoiding heating of the normal battery 5 due to heat accumulation and inducing heat diffusion.

[0051] Furthermore, if Figure 8As shown, in some embodiments, the battery pack 3 further includes a sealing ring 600, the fixing bracket 300 includes a fixing portion 310, a force-applying portion 320 and a threaded portion 330, the fixing portion 310 and the threaded portion 330 are arranged on opposite sides of the force-applying portion 320, the threaded portion 330 extends into the fixing hole 210 and is threadedly connected with the hole wall of the fixing hole 210, the force-applying portion 320 is located outside the fixing hole 210, and the outer peripheral surface of the force-applying portion 320 is used for being clamped by an operating tool to drive the threaded portion 330 to rotate relative to the fixing hole 210, the fixing portion 310 is detachably connected to the fastener 500, and the sealing ring 600 is sealed and abutted between the fixing portion 310 and the upper cover 700. The sealing ring 600 can have a better sealing effect on the gap between the fixing bracket 300 and the surface of the upper cover 700 to prevent the gas in the battery pack 3 from leaking out.

[0052] Furthermore, if Figure 8 As shown, in some embodiments, a sealing groove 312 is formed on one side of the fixing portion 310 facing the upper cover 700, and the sealing ring 600 is disposed in the sealing groove 312 and abuts against the surface of the upper cover 700. The groove wall of the sealing groove 312 can abut against the sealing ring 600 to limit the position, thereby preventing the sealing ring 600 from being offset and further ensuring its sealing effect.

[0053] Furthermore, if Figure 8 As shown, in some embodiments, the cross-sectional profile of the force-applying portion 320 is larger than the cross-sectional profile of the fixing hole 210 to limit the force-applying portion 320 from entering the fixing hole 210 along the axial direction of the fixing hole 210. Such a structural setting can prevent the force-applying portion 320 from entering the fixing hole 210, that is, the force-applying portion 320 is always located outside the fixing hole 210, providing a better force point for the operating tool during disassembly and assembly.

[0054] Furthermore, if Figure 8 As shown, in some embodiments, a connection hole 311 is provided on a side of the fixing bracket 300 facing away from the end plate 200 , and one end of the fastener 500 extends into the connection hole 311 and is threadedly connected to the fixing bracket 300 .

[0055] Furthermore, if Figure 8 As shown, in some embodiments, the fastener 500 is a bolt.

[0056] Furthermore, if Figure 8As shown, in some embodiments, the battery pack 3 further includes a gasket 900, and the fastener 500 is sequentially inserted through the gasket 900 and the upper cover 700 to be connected to the fixing bracket 300. When the fastener 500 is a bolt, for example, the gasket 900 can increase the friction between the fastener 500 and the upper cover 700, and the contact area between the gasket 900 and the surface of the upper cover 700 is larger, which can prevent the deformation of the upper cover 700 caused by excessive stress concentration. In addition, the gasket 900 can also play a sealing role to a certain extent.

[0057] In addition, if Fig. 9 As shown, the present application also provides an energy storage compartment 2, which includes a battery pack 3 as described in any of the above embodiments. The above energy storage compartment 2 includes the battery module 4 and the battery pack 3 described in the above embodiments, so it also includes at least the beneficial effects of the battery module 4 and the battery pack 3, which will not be repeated here.

[0058] In addition, if Fig.10 As shown, the present application also provides an electric device 1, which includes an electric device 6 and a battery pack 3 as described in any of the above embodiments or an energy storage compartment 2 as described in any of the above embodiments. The above electric device 1 includes the battery module 4 and the battery pack 3 as described in the above embodiments, so it also includes at least the beneficial effects of the battery module 4 and the battery pack 3, which will not be repeated here.

[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

[0061] In the description of the present application, it should be understood that if 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", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0062] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0064] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[0065] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0066] In the description of this specification, the description of reference terms "one embodiment", "other implementation methods", etc. means that the specific features, structures, materials or features 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 descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

Claims

1. A battery module, It is characterized in that include: Multiple single cells; A module frame, wherein the module frame encloses a receiving cavity, the multiple batteries are arranged in sequence and placed in the receiving cavity, and the module frame is provided with a hoisting opening on a side in the arrangement direction of the multiple batteries; An end plate, the end plate is connected to the module frame and is disposed in the accommodating cavity; A fixed bracket is arranged on the top of the end plate and is used to be connected to a lifting ring.

2. The battery module according to claim 1, It is characterized in that The fixing bracket is detachably connected to the top of the end plate; And / or, a connection hole is provided on a side of the fixing bracket facing away from the end plate, and the connection hole is used for threaded connection with the lifting ring or fastener; And / or, a fixing hole is opened at the top of the end plate, and the fixing bracket at least partially extends into the fixing hole and is threadedly connected to the hole wall of the fixing hole.

3. The battery module according to claim 2, It is characterized in that The fixing bracket includes a fixing portion, a force-applying portion and a threaded portion, wherein the fixing portion and the threaded portion are arranged on opposite sides of the force-applying portion, the threaded portion extends into the fixing hole and is threadedly connected to the hole wall of the fixing hole, the connecting hole is opened on the side of the fixing portion facing away from the end plate, the force-applying portion is located outside the fixing hole, and the outer peripheral surface of the force-applying portion is used for being clamped by an operating tool to drive the threaded portion to rotate relative to the fixing hole.

4. A battery pack, It is characterized in that The invention comprises an upper cover, a box body and a battery module as claimed in any one of claims 1 to 3, wherein the battery module is arranged in the box body, and the upper cover is arranged on the box body.

5. The battery pack according to claim 4, It is characterized in that The battery pack further includes a fastener, the upper cover is provided with a through hole, and the fastener is passed through the upper cover through the through hole to be detachably connected to the fixing bracket.

6. The battery pack according to claim 5, It is characterized in that The battery pack also includes a sealing ring, and the fixing bracket includes a fixing portion, a force-applying portion and a threaded portion, the fixing portion and the threaded portion are arranged on opposite sides of the force-applying portion, the threaded portion extends into the fixing hole and is threadedly connected to the hole wall of the fixing hole, the force-applying portion is located outside the fixing hole, and the outer peripheral surface of the force-applying portion is used for being clamped by an operating tool to drive the threaded portion to rotate relative to the fixing hole, the fixing portion and the fastener are detachably connected, and the sealing ring is sealingly abutted between the fixing portion and the upper cover.

7. The battery pack according to claim 6, It is characterized in that A sealing groove is formed on one side of the fixing portion facing the upper cover, and the sealing ring is arranged in the sealing groove and abuts against the surface of the upper cover; And / or, the cross-sectional profile of the force-applying portion is larger than the cross-sectional profile of the fixing hole so as to limit the force-applying portion from entering the fixing hole along the axial direction of the fixing hole.

8. The battery pack according to claim 5, It is characterized in that The fastener is a bolt; And / or, the battery pack further includes a gasket, and the fastener is sequentially passed through the gasket and the upper cover to be connected to the fixing bracket; And / or, a connecting hole is provided on a side of the fixing bracket facing away from the end plate, and one end of the fastener extends into the connecting hole and is threadedly connected to the fixing bracket.

9. An energy storage cabin, It is characterized in that A battery pack comprising the battery pack as claimed in any one of claims 4 to 8.

10. An electrical device, It is characterized in that It comprises an electrical device and a battery pack as described in any one of claims 4 to 8 or an energy storage compartment as described in claim 9.

Images