Partition plate assembly, battery module, battery pack, electrical device

Abstract

The partition plate assembly, battery module, battery pack, and electrical device include: a partition plate (31) provided with a plurality of bus bar mounting positions; bus bars (32) mounted at the bus bar mounting positions; an output electrode (33) including a first fixing portion (331) and a second fixing portion (332), with the first fixing portion (331) electrically connected to at least one of the bus bars (32); and an insulating plate (34) including a first connecting portion (34a) connected to the partition plate (31) and a second connecting portion (34b) connected to the second fixing portion (332). Figure 4

Description

[Technical Field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to Chinese Patent Application No. 202222868612.5, filed on October 31, 2022, entitled "Partition Plate Assembly, Battery Module, Battery Pack, and Electrical Device," the entire contents of which are incorporated herein by reference.

[0002] Technical Field The present application relates to the technical field of batteries, and more particularly to divider assemblies, battery modules, battery packs, and electrical devices. [Background technology]

[0003] The output terminals of the battery module or battery pack are not always at a constant distance from the cell assembly. If they are too far away, the output terminals will be too long and prone to breaking and becoming ineffective during transportation and locking. Summary of the Invention

[0004] In view of the above problems, the present application provides a partition plate assembly, a battery module, a battery pack, and an electrical device that can connect output poles more stably and prevent the occurrence of problems such as the output poles cracking and becoming ineffective.

[0005] In a first aspect, the present application provides a method for producing a method of a method for manufacturing a semiconductor device comprising: a partition plate provided with a plurality of bus bar mounting positions; bus bars attached to each bus bar attachment position; an output electrode including a first fixed portion and a second fixed portion, the first fixed portion being electrically connected to at least one bus bar; an insulating plate including a first connection portion connected to the partition plate and a second connection portion connected to the second fixing portion; A divider assembly is provided, comprising:

[0006] In the technical solutions of the embodiments of the present application, an insulating plate is connected to the output pole, a partition plate is connected to the insulating plate, and the output pole is electrically connected to the bus bar, which strengthens the fixation of the output pole and effectively prevents the output pole from being broken and rendered useless during transportation and locking.

[0007] In some embodiments, the second connecting portion is adhesively disposed on the second fixing portion, with an adhesive layer therebetween.

[0008] This allows the output pole to be more firmly connected to the insulating plate, thereby preventing the problem of the output pole being broken and rendered ineffective due to a large torque generated during transportation and locking.

[0009] In some embodiments, the divider comprises: A first insulating plate; The device comprises a first insulating plate and a second insulating plate stacked thereon, a bus bar is provided between the first insulating plate and the second insulating plate, and a first connection portion is located between the first insulating plate and the second insulating plate.

[0010] This allows the first connecting portion to be sandwiched between the first insulating plate and the second insulating plate, thereby achieving a stronger connection.

[0011] In some embodiments, the first connection portion is connected to the first insulating plate and / or the first connection portion is connected to the second insulating plate.

[0012] This further improves the reliability of the connection between the insulating plate and the partition plate.

[0013] In some embodiments, at least one of the plurality of bus bars presses the first connection portion against the first insulating plate or the second insulating plate.

[0014] This allows the insulating plate to be fixed more firmly.

[0015] In some embodiments, the second fixing portion is a plate-like structure, and the second fixing portion is disposed laterally above the second connecting portion.

[0016] This reduces the volume of the output electrode along the thickness direction of the partition plate, making it possible to make the battery module or battery pack more compact.

[0017] In some embodiments, an adhesive reservoir is provided on the upper surface of the partition plate, and the adhesive reservoir is located at the bottom of the output pole, and the adhesive reservoir is arranged to store adhesive to adhere the bottom of the output pole to the insulating plate.

[0018] By injecting adhesive into the adhesive reservoir tank, once it is filled with adhesive, the second fixing portion of the output pole and the second connecting portion can be adhesively fixed together, and the second fixing portion of the output pole can be fixed more securely.

[0019] In some embodiments, the insulating plate has adhesive injection holes extending through it in the thickness direction of the partition plate, and the adhesive injection holes are positioned to deliver adhesive to the tops of the battery cells, thereby bonding and fixing the bottom of the insulating plate to the tops of the battery cells.

[0020] Since the adhesive injection hole penetrates the insulating plate, adhesive can be injected into the adhesive injection hole from the top of the insulating plate, allowing adhesive injection after the partition plate assembly is installed and facilitating installation.

[0021] In some embodiments, an adhesive injection tank is provided on the upper surface of the insulating plate, the bottom of the adhesive injection tank is shallower than the bottom of the adhesive storage tank in the thickness direction of the partition plate, and an adhesive discharge outlet is provided in the adhesive injection tank, which is connected to the adhesive storage tank and is used to discharge adhesive into the adhesive storage tank.

[0022] Because the bottom of the adhesive injection tank is shallower than the bottom of the adhesive storage tank, when adhesive is injected into the adhesive injection tank, the adhesive flows into the adhesive storage tank by its own gravity, enabling the bottom of the output pole to be insulated and bonded to the insulating plate. The provision of the adhesive injection tank makes it easier to inject the adhesive, and eliminates the need to apply adhesive to the partition plate and insulating plate to attach them together, simplifying the assembly process.

[0023] In some embodiments, the adhesive injection hole is located in the adhesive injection reservoir.

[0024] By injecting adhesive into the adhesive injection hole or the adhesive injection tank, or by injecting adhesive into both the adhesive injection hole and the adhesive injection tank, the insulating plate and the battery cell, and the insulating plate and the output electrode can be bonded and fixed, making the operation simpler and more convenient.

[0025] In some embodiments, the adhesive injection holes are provided with reinforcing ribs.

[0026] This allows the adhesive to be connected to the insulating plate, thereby increasing the strength of the insulating plate.

[0027] In some embodiments, the insulating plate is provided with an adhesive injection observation window that penetrates the insulating plate in the thickness direction of the insulating plate.

[0028] This allows the adhesive injection observation window to determine whether too much adhesive is flowing from the adhesive injection hole to the battery cell.

[0029] In a second aspect, the present application provides a method for manufacturing a method of a medical device comprising: at least one battery cell; and the partition plate assembly according to the first aspect positioned on top of the battery cells, the battery cells being connected to the insulating plate.

[0030] The battery module of the present application includes the technical features of the partition plate assembly described in the first embodiment, and the effects thereof are the same as those described above, so they will not be described again here.

[0031] In some embodiments, the top of the battery cell is adhesively secured to the bottom of the insulating plate.

[0032] This makes the insulating plate stronger, and the second fixing part of the output pole can be fixed more reliably, preventing the output pole from being broken and rendered useless during transportation and locking.

[0033] In a third aspect, the present application provides a battery pack including the battery module.

[0034] The battery pack of the present application includes the technical features of the partition plate assembly described in the first embodiment, and the effects thereof are the same as those described above, so they will not be described again here.

[0035] In a fourth aspect, the present application provides an electric device comprising the battery module according to the second aspect, wherein the battery module is used to provide electric energy, or comprising the battery pack according to the third aspect, wherein the battery pack is used to provide electric energy.

[0036] In the technical solutions of the embodiments of this application, the electrical device includes the technical features of the partition plate assembly, and the technical effects thereof are the same as those described above, and will not be described again here.

[0037] The above description is merely a brief description of the technical solution of the present application. In order to make the technical solution of the present application more clearly understood and implemented according to the contents of the specification, and to make the above and other objectives, features and advantages of the present application more comprehensible, specific embodiments of the present application are given below. [Brief explanation of the drawings]

[0038] Various other benefits and advantages will become apparent to those skilled in the art upon review of the detailed description of the preferred embodiments below. The drawings are only for purposes of illustrating the preferred embodiments and should not be construed as limiting the present application. Also, like reference numerals refer to like elements throughout the drawings. A description of the drawings follows.

[0039] [Figure 1] 1 is a structural schematic diagram of an electrical device that is a vehicle in some embodiments of the present application; [Figure 2] 1 is an exploded structural schematic diagram of a battery pack according to some embodiments of the present application; [Figure 3] 1 is an exploded structural schematic diagram of a battery cell according to some embodiments of the present application; [Figure 4] 1 is a partial exploded structural schematic diagram of a battery pack according to some embodiments of the present application, in which the first insulating plate is omitted. [Figure 5] 1 is a partial schematic diagram of a battery pack according to some embodiments of the present application. [Figure 6] FIG. 2 is an axonometric view of an insulating plate of a partition plate assembly according to some embodiments of the present application. [Figure 7] 3 is a partial cross-sectional view of an insulating plate of a partition plate assembly according to some embodiments of the present application. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0040] The following detailed description will be given of the embodiments of the technical proposal of the present application with reference to the drawings. The following embodiments are merely examples, and should not be construed as limiting the scope of protection of the present application, as they are merely intended to more clearly illustrate the technical proposal of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used herein are for describing specific examples only and are not intended to limit this application. The terms "comprises" and "comprises" and any variations thereof in the specification, claims, and the above brief description of the drawings of this application are intended to cover a non-exclusive inclusion.

[0042] In the description of the examples of this application, technical terms such as "first," "second," etc. are merely used to distinguish different objects, and should not be understood as indicating or implying relative importance, or implying the number, specific order, or primary and secondary relationship of the technical features shown. In the description of the examples of this application, unless otherwise clearly and specifically limited, "plurality" means two or more.

[0043] When an "embodiment" is described herein, it means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an embodiment that is exclusively independent of or an alternative to other embodiments. It is explicitly or implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0044] In the description of the examples of this application, the term "and / or" is merely used to explain the relationship between related objects, and means that there may be three types of relationship; for example, A and / or B can mean that A exists alone, that A and B exist simultaneously, or that B exists alone. In addition, the symbol " / " in this specification generally means that the related objects before and after it are in an "or" relationship.

[0045] In describing the examples of this application, the term "plurality" refers to two or more (including two); similarly, "sets" refers to two or more (including two sets); and "plurality" refers to two or more (including two).

[0046] In describing the examples of the present application, orientations or positional relationships indicated by technical terms such as "center," "longitudinal direction," "lateral direction," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial direction," "radial direction," and "circumferential direction" are orientations or positional relationships shown based on the drawings, and are intended merely to make the examples of the present application easier to explain and simplify the description. They do not explicitly or implicitly indicate that the indicated devices or elements necessarily have a specific orientation, or are configured and operated in a specific orientation, and therefore should not be understood as limiting the examples of the present application.

[0047] In describing the embodiments of the present application, unless otherwise clearly defined or limited, technical terms such as "attach," "couple," "connect," and "fix" should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection. They may also refer to a mechanical connection or an electrical connection. They may also refer to a direct connection, an indirect connection via an intermediate medium, an internal communication between two elements, or an interactive relationship between two elements. Those skilled in the art will be able to understand the specific meanings of the above terms in the embodiments of the present application according to specific circumstances.

[0048] The applicant noticed that after the output pole of a battery module or battery pack is electrically connected to the output bus bar, a portion of it protrudes to form a cantilever structure, and during transportation and locking, the cantilever is far from the connection point between the output pole and the output bus bar and is subjected to a large force, making it easy for the output pole to break and become ineffective during transportation and locking.

[0049] In order to solve the above problem, the applicant conducted research and found that an insulating plate can be provided between the second fixing part 332 of the output pole and the partition plate 31, and by fixing the second fixing part 332 of the output pole and the partition plate 31 to the insulating plate respectively, the output pole can be strengthened and the problem of the output pole being easily cracked and rendered useless during transportation and locking can be avoided.

[0050] An embodiment of the present application provides an electric device including a battery cell, a battery module, or a battery pack, which provides electric energy to the electric device. The electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, a power tool, a battery car, an electric vehicle, a boat, an aircraft, etc. Here, the electric toy may include a stationary or mobile electric toy, such as a game console, an electric toy car, an electric toy boat, and an electric toy airplane, and the aircraft may include an airplane, a rocket, a space shuttle, and a spaceship, etc.

[0051] In the following embodiments, for ease of explanation, an electric device in some embodiments of the present application will be described as a vehicle 1000 as an example.

[0052] Please refer to FIG. 1 , which is a structural schematic diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 may be a fuel-powered vehicle, a natural gas vehicle, or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle, a range-extended vehicle, etc. A battery pack 100 is provided inside the vehicle 1000, and the battery pack 100 can be installed at the bottom, front, or rear of the vehicle 1000. The battery pack 100 can be used to supply power to the vehicle 1000, for example, the battery pack 100 can be used as an operating power source for the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, where the controller 200 controls the battery pack 100 to supply power to the motor 300, for example, for operating power needs required for starting, navigation, and driving the vehicle 1000.

[0053] In some embodiments of the present application, the battery pack 100 can not only serve as the operating power source for the vehicle 1000, but can also replace or partially replace fuel oil or natural gas as the driving power source for the vehicle 1000 to provide driving power for the vehicle 1000.

[0054] Refer to FIG. 2, which is an exploded structural schematic diagram of a battery pack 100 provided in some embodiments of the present application. The battery pack 100 includes a battery pack housing 10 and at least one battery cell 20 housed in the battery pack housing 10. The battery pack housing 10 provides a storage space for the battery cell 20 and may have various structures. In some embodiments, the battery pack housing 10 may include a box 11 and a top cover 12 that, when stacked together, define a storage space for the battery cell 20. The top cover 12 may have a hollow structure with an inlet at one end, and the box 11 may have a plate-like structure. The box 11 may be stacked on the inlet side of the top cover 12, thereby defining the storage space. Alternatively, the box 11 and the top cover 12 may both have a hollow structure with an inlet at one end, and the inlet side of the box 11 may be stacked on the inlet side of the top cover 12. Of course, the battery pack housing 10 formed by the box 11 and the top cover 12 may have various shapes, such as a T-shape or a rectangular parallelepiped.

[0055] The battery pack 100 may include a plurality of battery cells 20, and the plurality of battery cells 20 may be connected in series, parallel, or a mixed connection. A mixed connection refers to both series and parallel connections among the plurality of battery cells 20. The plurality of battery cells 20 may be directly connected in series, parallel, or a mixed connection, and then the integrated plurality of battery cells 20 may be housed in the box 11. Of course, the battery pack 100 may also be formed by first connecting the plurality of battery cells 20 in series, parallel, or a mixed connection to form a battery module, and then further connecting the plurality of battery modules in series, parallel, or a mixed connection to form an integrated battery module and housed in the box 11. The battery pack 100 may further include other structures. For example, the battery pack 100 may further include a current collecting member for achieving electrical connection between the plurality of battery cells 20.

[0056] Here, each battery cell 20 may be a secondary battery or a primary battery, and may be, but is not limited to, a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery. The battery cells 20 may be cylindrical, flat, rectangular, or have other shapes.

[0057] Please refer to Figure 3, which is an exploded structural schematic diagram of a battery cell 20 provided in some embodiments of the present application. The battery cell 20 refers to the smallest constituent unit of a battery pack. The battery cell 20 includes a top cover assembly 21, a housing 22, an electrode assembly 23, and other functional components.

[0058] The top cover assembly 21 refers to a component that overlaps the inlet of the housing 22 and isolates the internal environment of the battery cell 20 from the external environment. The shape of the top cover assembly 21 may be adapted to match the shape of the housing 22, but is not limited to this. Optionally, the top cover assembly 21 may be made of a material (e.g., aluminum alloy) with a certain degree of hardness and strength so as to be resistant to deformation when pressed or hit. This provides the battery cell 20 with increased structural strength and improves safety performance to some extent. The top cover assembly 21 may be provided with functional components such as electrode terminals 21a. The electrode terminals 21a are electrically connected to the electrode assembly 23 to output or input electrical energy to or from the battery cell 20. In some embodiments, the top cover assembly 21 may further be provided with a pressure release mechanism for releasing internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The top cover assembly 21 may be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., but the embodiments of the present application are not particularly limited thereto. In some embodiments, an insulating member may be further provided inside the top cover assembly 21 to isolate the electrical connection members in the housing 22 from the top cover assembly 21 and reduce the risk of short circuits. For example, the insulating member may be plastic, rubber, etc.

[0059] The housing 22, together with the top cover assembly 21, is a component for forming the internal environment of the battery cell 20. This internal environment can accommodate the electrode assembly 23, electrolyte, and other components. The housing 22 and the top cover assembly 21 may be independent components, with an inlet provided in the housing 22, and the top cover assembly 21 may be placed over the inlet to form the internal environment of the battery cell 20. Alternatively, the top cover assembly 21 and the housing 22 may be integrated, but this is not limited to this. Specifically, a common connection surface may be formed between the top cover assembly 21 and the housing 22 before other components are enclosed, and the top cover assembly 21 may be placed over the housing 22 when the interior of the housing 22 needs to be sealed. The housing 22 may have various shapes and sizes, such as a rectangular parallelepiped, cylindrical, or hexagonal prism. Specifically, the shape of the housing 22 may be determined according to the specific shape and size of the electrode assembly 23. The housing 22 may be made of various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., but the embodiments of the present application are not particularly limited thereto.

[0060] The electrode assembly 23 is a component that undergoes an electrochemical reaction in the battery cell 20. The housing 22 may contain one or more electrode assemblies 23. The electrode assembly 23 is typically formed by winding or stacking a positive electrode sheet and a negative electrode sheet, with a separator typically being provided between the positive and negative electrode sheets. The portions of the positive and negative electrode sheets containing active material form the main body of the electrode assembly, and the portions of the positive and negative electrode sheets without active material form tabs, respectively. The positive electrode tab 23a and the negative electrode tab 23b may be located at the same end of the main body, or at opposite ends of the main body. During the charge and discharge process of the battery, the positive and negative electrode active materials react with the electrolyte, and the tabs are connected to the electrode terminals to form a current circuit.

[0061] In the following embodiments, for ease of explanation, the partition plate assemblies of some embodiments of the present application will be described as examples.

[0062] 4 to 6, the partition plate assembly includes a partition plate 31, bus bars 32, output electrodes 33, and an insulating plate 34. Here, a plurality of bus bar mounting positions are provided on the partition plate 31. Bus bars 32 are mounted at the bus bar mounting positions. The output electrodes 33 include a first fixing portion 331 and a second fixing portion 332, and the first fixing portion 331 is electrically connected to at least one bus bar 32. The insulating plate 34 includes a first connecting portion 34a connected to the partition plate 31 and a second connecting portion 34b connected to the second fixing portion 332.

[0063] The partition plate 31 may be a plate made of an insulating material, specifically an insulating plastic plate.

[0064] The first fixing portion 331 and the second fixing portion 332 indicate different mounting positions of the output pole 33.

[0065] The first connecting portion 34a and the second connecting portion 34b of the insulating plate 34 refer to different positions on the insulating plate 34.

[0066] The insulating plate 34 is connected to the output pole 33, the partition plate 31 is connected to the insulating plate 34, and the output pole 33 is electrically connected to the bus bar 32, which strengthens the fixation of the output pole 33 and effectively prevents the output pole 33 from being broken and rendered ineffective during transportation and locking.

[0067] In some embodiments, referring to FIGS. 5 and 6, the second connecting portion 34b is adhesively attached to the second fixing portion 332 with an adhesive layer therebetween.

[0068] This allows the second fixing portion 332 of the output pole 33 to be more firmly connected to the insulating plate 34, thereby preventing the problem of the output pole 33 cracking and becoming ineffective due to a large torque generated during transportation and locking.

[0069] 4 and 6, in some embodiments, because the first insulating plate 311 in FIG. 5 is thin, a copy structure is used, and the outline of the copy structure is similar to or the same as the bus bar 32. The partition plate 31 includes a first insulating plate 311 and a second insulating plate 312. The second insulating plate 312 is stacked on the first insulating plate 311, the bus bar 32 is disposed between the first insulating plate 311 and the second insulating plate 312, and the first connecting portion 34a is located between the first insulating plate 311 and the second insulating plate 312.

[0070] The second insulating plate 312 and the first insulating plate 311 may be welded together using hot melt, or may be fixed together using screws, rivets, or other means, and there are no specific limitations here.

[0071] As a result, the first insulating plate 311 and the second insulating plate 312 sandwich the first connecting portion 34a therebetween, thereby achieving a stronger connection.

[0072] In some embodiments, the first connecting portion 34a is connected to the first insulating plate 311 and / or the first connecting portion 34a is connected to the second insulating plate 312.

[0073] The first connecting portion 34a being connected to the first insulating plate 311 means that the first connecting portion 34a cannot move relative to the first insulating plate 311, and the fixed connection means may be, but is not limited to, screw connection, riveting, hot melt welding, integral injection molding, etc., that is, the first connecting portion 34a and the first insulating plate 311 may be removably connected or non-removably connected.

[0074] The first connecting portion 34a being connected to the second insulating plate 312 means that the first connecting portion 34a cannot move relative to the second insulating plate 312, and the fixed connection means may be, but is not limited to, screw connection, riveting, hot melt welding, integral injection molding, etc., that is, the first connecting portion 34a and the second insulating plate 312 may be removably connected or non-removably connected.

[0075] This makes it possible to further improve the reliability of the connection between the insulating plate 34 and the partition plate 31.

[0076] In some embodiments, referring to FIG. 4, at least one of the bus bars 32 presses the first connection portion 34a against the first insulating plate 311 or the second insulating plate 312.

[0077] The first connecting portion 34a is pressed against the first insulating plate 311 or the second insulating plate 312, and the number of bus bars 32 may be one, two, or more.

[0078] This allows the insulating plate 34 to be fixed more firmly.

[0079] In some embodiments, the second fixing portion 332 is a plate-like structure, and the second fixing portion 332 is laterally disposed above the second connecting portion 34b.

[0080] The horizontal direction may be any direction perpendicular to the thickness direction of the partition plate 31, or may form an included angle of approximately 90° with respect to the thickness direction of the partition plate 31. For example, the horizontal direction may form an included angle of any value within the range of 75° to 90° with respect to the thickness direction of the partition plate 31, and is not specifically limited here.

[0081] The second fixing portion 332 is arranged laterally above the second connecting portion 34b, i.e., they are arranged stacked, thereby reducing the space occupied by the output pole 33 in the thickness direction A of the partition plate 31 and making the battery module or battery pack more compact.

[0082] In some embodiments, referring to Figures 4 and 6, an adhesive reservoir 343 is provided on the upper surface of the second connecting portion 34b, and the adhesive reservoir 343 is located at the bottom of the second fixing portion 332, and the adhesive reservoir 343 is arranged to store adhesive to adhere the bottom of the second fixing portion 332 to the second connecting portion 34b.

[0083] The shape of the adhesive reservoir 343 may be any shape and is not specifically limited here.

[0084] The upper surface of the second connecting portion 34b refers to the surface facing the second fixed portion 332 of the output pole 33.

[0085] By injecting adhesive into the adhesive reservoir tank 343, when it is filled with adhesive, the second fixing portion 332 of the output pole 33 can be adhesively fixed to the second connecting portion 34b, and the output pole 33 can be fixed more securely.

[0086] In some embodiments, referring to Figures 4, 6 and 7, the insulating plate 34 has a through adhesive injection hole 341 formed in the thickness direction A of the partition plate 31, and the adhesive injection hole 341 is positioned so as to deliver adhesive to the top of the battery cell 20, thereby adhering and fixing the bottom of the insulating plate 34 and the top of the battery cell 20.

[0087] The shape of the adhesive injection hole 341 may be a square hole, a circular hole, or the like, but is not limited to these.

[0088] Since the adhesive injection hole 341 penetrates the insulating plate 34, adhesive can be injected into the adhesive injection hole 341 from the top of the insulating plate 34, making it possible to inject adhesive after the partition plate assembly has been installed and facilitating installation.

[0089] In some embodiments, referring to FIG. 6 , an adhesive injection tank 342 is provided on the upper surface of the insulating plate 34, and in the thickness direction A of the partition plate 31, the bottom of the adhesive injection tank 342 is shallower than the bottom of the adhesive storage tank 343, and an adhesive discharge port is provided in the adhesive injection tank 342, which is connected to the adhesive storage tank 343 and is used to discharge adhesive into the adhesive storage tank 343.

[0090] Specifically, an enclosure 344 having an opening can be optionally provided on the upper surface of the insulating plate 34, and the internal space of the enclosure 344 can be used as an adhesive injection tank 342, with the opening of the enclosure 344 serving as an adhesive discharge port. Alternatively, the enclosure 344 can be omitted, and a recess can be opened on the upper surface of the insulating plate 34 to serve as the adhesive injection tank 342.

[0091] The bottom of adhesive injection tank 342 is shallower than the bottom of adhesive storage tank 343, and their bottom surfaces form a step, so that when adhesive is injected into adhesive injection tank 342, the adhesive can flow from a higher place to a lower place into adhesive storage tank 343, enabling bonding of output electrode 33 and insulating plate 34. Providing adhesive injection tank 342 makes it easier to bond insulating plate 34 and output electrode 33, and eliminates the need to apply adhesive to partition plate 31 and insulating plate 34 and attach them as a single unit, making operation easier.

[0092] In some embodiments, referring to FIG. 6, adhesive injection hole 341 is located in adhesive injection reservoir 342 .

[0093] The height of the top of the adhesive injection hole 341 may be greater than, equal to, or less than the height of the top edge of the adhesive injection tank 342 .

[0094] For example, the height of the top of the adhesive injection hole 341 may be higher than the height of the top edge of the adhesive injection tank 342. First, adhesive can be injected into the adhesive injection hole 341. When the adhesive injection hole 341 is filled with adhesive, the adhesive overflows from the adhesive injection hole 341 into the adhesive injection tank 342, and then flows from the adhesive injection tank 342 into the adhesive storage tank 343. Adhesive can also be injected into the adhesive injection hole 341 and the adhesive injection tank 342 separately.

[0095] For example, the height of the top of the adhesive injection hole 341 may be equal to the height of the top edge of the adhesive injection tank 342. First, adhesive can be injected into the adhesive injection hole 341, and when the adhesive injection hole 341 is filled with adhesive, the adhesive overflows from the adhesive injection hole 341 into the adhesive injection tank 342, and then flows from the adhesive injection tank 342 into the adhesive storage tank 343. Adhesive can also be injected into the adhesive injection hole 341 and the adhesive injection tank 342 separately.

[0096] Illustratively, the height of the top of the adhesive injection hole 341 is less than the height of the top edge of the adhesive injection reservoir 342. First, adhesive can be injected into the adhesive injection reservoir 342, and the adhesive will flow into both the adhesive injection hole 341 and the adhesive reservoir 343.

[0097] By injecting adhesive into the adhesive injection hole 341 or the adhesive injection tank 342, or by injecting adhesive into both the adhesive injection hole 341 and the adhesive injection tank 342, the insulating plate 34 and the battery cell 20, and the insulating plate 34 and the output pole 33 can be bonded and fixed, making the operation simpler and more convenient.

[0098] In some embodiments, referring to FIG. 6, adhesive injection holes 341 are provided with reinforcing ribs.

[0099] The reinforcing rib may be a cross-shaped reinforcing rib, but is not limited thereto and may be an X-shaped rib or the like.

[0100] This allows the adhesive to be bonded to the insulating plate 34, thereby increasing the strength of the insulating plate 34.

[0101] In some embodiments, referring to FIG. 6, the insulating plate 34 is provided with an adhesive injection observation window 345, which penetrates the insulating plate 34 in the thickness direction of the insulating plate 34.

[0102] An adhesive injection observation window 345 may be provided on one side of the adhesive injection hole 341. When adhesive is injected from the adhesive injection hole 341 into the battery cell 20, the adhesive flows laterally. When the adhesive flows to the adhesive injection observation window 345, it can be determined that too much adhesive has been injected, and the adhesive injection can be stopped.

[0103] This allows the adhesive injection observation window 345 to determine whether too much adhesive is flowing from the adhesive injection hole 341 to the battery cell 20 .

[0104] In the following embodiments, for ease of explanation, the battery modules of some embodiments of the present application will be taken as examples.

[0105] The battery module of the present application includes the above-mentioned partition plate assembly and at least one battery cell 20. Here, the partition plate assembly is located on top of the battery cell 20, and the battery cell 20 is connected to an insulating plate 34.

[0106] The battery cells 20 being connected to the insulating plate 34 means that the battery cells 20 are fixed relative to the insulating plate 34 and cannot move.

[0107] The battery module of the present application includes the technical features of the above-mentioned partition plate assembly, and its effects are the same as those described above, so they will not be described again here.

[0108] In some embodiments, the top of the battery cell 20 is adhesively secured to the bottom of the insulating plate 34 .

[0109] Specifically, by selectively injecting adhesive into adhesive injection holes 341 in the insulating plate 34, the battery cells 20 and the insulating plate 34 can be adhesively fixed.

[0110] This makes the insulating plate 34 stronger and more reliably fixes the second fixing portion 332 of the output pole 33, preventing the second fixing portion 332 of the output pole 33 from cracking and becoming ineffective during transportation and locking.

[0111] In the following embodiments, for ease of explanation, the battery packs of some embodiments of the present application will be taken as examples.

[0112] The battery pack of the present application comprises a battery module.

[0113] Specifically, the battery module is provided in a battery pack box.

[0114] The battery module includes the technical features of the above-mentioned partition plate assembly, and its effects are the same as those described above, so they will not be described again here.

[0115] In the following embodiments, for ease of explanation, the partition plate assemblies of some embodiments of the present application will be described as examples.

[0116] 4 to 7, the partition plate assembly includes a partition plate 31, a bus bar 32, an output electrode 33, and an insulating plate 34. Here, a plurality of bus bar mounting positions are provided on the partition plate 31. A bus bar 32 is insulatedly mounted at each bus bar mounting position. The output electrode 33 includes a first fixing portion 331 and a second fixing portion 332. The first fixing portion 331 is electrically connected to one of the plurality of bus bars 32, and the second fixing portion 332 is provided farther from the bus bar 32 than the first fixing portion 331. The insulating plate 34 includes a first connecting portion 34a connected to the partition plate 31 and a second connecting portion 34b insulatedly connected to the second fixing portion 332.

[0117] The second connecting portion 34b is provided by adhering to the second fixing portion 332, with an adhesive layer provided therebetween.

[0118] The partition plate 31 includes a first insulating plate 311 and a second insulating plate 312. The second insulating plate 312 is stacked on the first insulating plate 311, and the first connecting portion 34a is located between the first insulating plate 311 and the second insulating plate 312.

[0119] At least one of the bus bars 32 presses the first connection portion 34 a against the first insulating plate 311 or the second insulating plate 312 .

[0120] The first connecting portion 34a is connected to the first insulating plate 311 and / or the first connecting portion 34a is connected to the second insulating plate 312.

[0121] The second fixing portion 332 has a plate-like structure, and is provided laterally above the second connecting portion 34b.

[0122] An adhesive reservoir 343 is provided on the upper surface of the second connecting portion 34b, and the adhesive reservoir 343 is located at the bottom of the second fixing portion 332, and the adhesive reservoir 343 is arranged to store adhesive so as to adhere the bottom of the second fixing portion 332 to the second connecting portion 34b.

[0123] The insulating plate 34 has a through adhesive injection hole 341 formed in the thickness direction A of the partition plate 31, and the adhesive injection hole 341 is positioned so that adhesive is delivered to the top of the battery cell 20, thereby adhering and fixing the bottom of the insulating plate 34 and the top of the battery cell 20 together.

[0124] An adhesive injection tank 342 is provided on the upper surface of the insulating plate 34, and in the thickness direction A of the partition plate 31, the bottom of the adhesive injection tank 342 is shallower than the bottom of the adhesive storage tank 343. An adhesive discharge outlet is provided in the adhesive injection tank 342, and the adhesive discharge outlet is connected to the adhesive storage tank 343 and is used to discharge adhesive into the adhesive storage tank 343.

[0125] An adhesive injection hole 341 is located in an adhesive injection tank 342 .

[0126] Optionally, adhesive injection hole 341 is provided with a reinforcing rib.

[0127] Optionally, an adhesive injection observation window 345 is provided in the insulating plate 34, and the adhesive injection observation window 345 penetrates the insulating plate 34 in the thickness direction of the insulating plate 34.

[0128] Finally, it should be noted that the above embodiments are merely intended to illustrate the technical proposals of the present application and are not intended to limit the same. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical proposals described in the above embodiments may be modified or equivalently substituted for some or all of their technical features, and that such modifications or substitutions do not deviate from the essence of the corresponding technical proposals and the scope of the technical proposals of the embodiments of the present application, and are all within the scope of the claims and the description of the present application. In particular, as long as there is no structural contradiction, any technical features described in the embodiments may be arbitrarily combined. The present application is not limited to the specific embodiments disclosed herein, but includes all technical proposals encompassed within the scope of the claims. [Explanation of symbols]

[0129] 1000 vehicles 100 battery packs 10 Battery pack housing 11 Box 12 Top lid 20 battery cells 21 Top cover assembly 21a Electrode terminal 22 Housing 23 Electrode assembly 23a Positive electrode tab 23b Negative electrode tab 31 Divider 311 First insulating plate 312 Second insulating plate 32 Busbar 33 Output pole 331 1st fixed part 332 Second fixed part 34 Insulating plate 34a First connection part 34b Second connection part 341 Adhesive injection hole 342 Adhesive injection tank 343 Adhesive storage tank 344 Enclosure 345 Adhesive injection observation window A Thickness direction of the partition plate 31 200 Controller 300 motor

Claims

1. a partition plate provided with a plurality of bus bar mounting positions; a bus bar attached to the bus bar attachment position; an output pole including a first fixed portion and a second fixed portion, the first fixed portion being electrically connected to at least one of the bus bars; an insulating plate including a first connection portion connected to the partition plate and a second connection portion connected to the second fixing portion; A partition plate assembly comprising:

2. The partition plate assembly according to claim 1 , wherein the second connecting portion is provided by being adhesively attached to the second fixing portion.

3. The partition plate is A first insulating plate; 3. The partition plate assembly according to claim 1, further comprising: a second insulating plate body stacked on the first insulating plate body, the bus bar being provided between the first insulating plate body and the second insulating plate body, and the first connection portion being located between the first insulating plate body and the second insulating plate body.

4. The partition plate assembly according to claim 3 , wherein the first connecting portion is connected to the first insulating plate body and / or the first connecting portion is connected to the second insulating plate body.

5. 5. The partition plate assembly according to claim 3, wherein at least one of the plurality of bus bars presses the first connection portion against the first insulating plate body or the second insulating plate body.

6. 6. A partition plate assembly according to claim 1, wherein the second fixing portion has a plate-like structure and is provided laterally above the second connecting portion.

7. 7. The partition plate assembly of claim 6, wherein an adhesive reservoir is provided on the upper surface of the second connection portion, the adhesive reservoir is located at the bottom of the second fixing portion, and the adhesive reservoir is arranged to store adhesive.

8. 8. The divider plate assembly according to claim 7, wherein the insulating plate has an adhesive injection hole extending therethrough in the thickness direction of the divider plate, the adhesive injection hole being positioned so as to deliver adhesive to the tops of the battery cells.

9. 9. The partition plate assembly according to claim 8, wherein an adhesive injection tank is provided on the upper surface of the insulating plate, the bottom of the adhesive injection tank is shallower than the bottom of the adhesive storage tank in the thickness direction of the partition plate, and the adhesive injection tank is provided with an adhesive discharge port, which is connected to the adhesive storage tank and is used to discharge adhesive into the adhesive storage tank.

10. 10. The divider assembly according to claim 9, wherein the adhesive injection hole is located within the adhesive injection tank.

11. 11. The partition plate assembly according to claim 10, wherein a reinforcing rib is provided at the adhesive injection hole.

12. 12. The partition plate assembly according to claim 9, wherein the insulating plate is provided with an adhesive injection observation window, the adhesive injection observation window penetrating the insulating plate in the thickness direction of the insulating plate.

13. at least one battery cell; a partition plate assembly according to any one of claims 1 to 12 located on top of the battery cells, the battery cells being connected to the insulating plate.

14. 14. The battery module according to claim 13, wherein the tops of the battery cells are adhesively fixed to the bottoms of the insulating plates.

15. A battery pack comprising the battery module according to claim 13 or 14.

16. An electric device comprising a battery module according to any one of claims 13 to 14, the battery module being used to provide electric energy, or a battery pack according to claim 15, the battery pack being used to provide electric energy.

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