Switching module, battery pack, battery pack and electric equipment

Abstract

The utility model discloses a switching module, a battery pack, a battery pack and electric equipment, and relates to the technical field of batteries. The switching module comprises a support and an electrode leading-out sheet. The support is provided with a switching end face. The electrode leading-out sheet is arranged on the bracket and comprises an inner sheet connecting area and an outer sheet connecting area; the two electrode lead-out sheets comprise a first lead-out sheet and a second lead-out sheet; the external sheet area of the first lead-out sheet is a first sheet area, the external sheet area of the second lead-out sheet is a second sheet area, and the first sheet area and the second sheet area are far away from each other; the distance between the first area and the switching end face is larger than the distance between the second area and the switching end face, so that when the two switching modules are assembled, the first area of one switching module is in lap joint with the second area of the other switching module. According to the switching module, the electrode leading-out sheets of the battery cells are used for connection, additional connection sheets are not needed, the series connection process is simplified, the risk of over-current temperature rise is reduced, and the safety of the battery pack is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a switching module, a battery pack, a battery pack and a power consumption device. BACKGROUND

[0002] In the existing BC (Back Contact, i.e. back contact) battery, in order to realize the series connection between the battery assemblies, an extra-made connecting sheet is usually welded to the positive and negative copper-aluminum bars of adjacent battery assemblies. These copper-aluminum bars have been connected to the positive and negative poles of the battery respectively and used to lead out the current. The extra-added connecting sheet not only increases the material cost and assembly complexity, but also may cause the temperature rise to increase when overcurrent flows, affecting the system stability.

[0003] Therefore, the connection structure between the battery assemblies has certain room for improvement. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems existing in the prior art. To this end, the utility model proposes a switching module in the first aspect, which uses the electrode lead-out sheet of the battery cell itself for connection without extra-added connecting sheet, thereby simplifying the series connection process between the battery cells, helping to reduce the overcurrent temperature rise risk and improve the safety of the battery pack.

[0005] The utility model proposes a battery pack in the second aspect.

[0006] The utility model proposes a battery pack in the third aspect.

[0007] The utility model proposes a power consumption device in the fourth aspect.

[0008] According to the switching module in the first aspect of the utility model, the switching module comprises a support and an electrode lead-out sheet, the support has a switching end face extending along a first direction; the electrode lead-out sheet is arranged on the support, the electrode lead-out sheet comprises an inner lead-out sheet area and an outer lead-out sheet area connected to each other, and the inner lead-out sheet area is used for connecting the electrode of the battery cell; wherein the electrode lead-out sheet is two and comprises a first lead-out sheet and a second lead-out sheet, one of the first lead-out sheet and the second lead-out sheet is a positive electrode lead-out sheet, and the other is a negative electrode lead-out sheet; the outer lead-out sheet area of the first lead-out sheet is a first sheet area, the outer lead-out sheet area of the second lead-out sheet is a second sheet area, the first sheet area and the second sheet area are arranged in the direction away from each other along the first direction; and the distance between the first sheet area and the switching end face is greater than the distance between the second sheet area and the switching end face, so that when two switching modules are assembled along the first direction, the first sheet area of one switching module is overlapped on the second sheet area of the other switching module.

[0009] According to the switching module, the electrode lead-out sheet is divided into an inner connection sheet area and an outer connection sheet area, the inner connection sheet area is directly connected with the electrode of the battery cell, current is stably and unobstructively transmitted, and the outer connection sheet area is used for being connected with other circuits to meet the demand of series connection.

[0010] By dividing the outer connection sheet area of the electrode lead-out sheet into the first sheet area and the second sheet area and extending the two sheet areas in opposite directions, when the two switching modules are assembled, the first sheet area of one switching module can be connected on the second sheet area of the other switching module, series connection without additional connection sheet is realized, the risk of over-current temperature rise is reduced, the connection area is increased, and the connection reliability is improved.

[0011] According to the switching module, the distance between the first sheet area and the switching end face is L1, the distance between the second sheet area and the switching end face is L2, and the thickness of the second sheet area is d2, and L1=L2+d2 is met.

[0012] According to the switching module, opposite two sides of the switching end face are a first side and a second side, the first side and the second side are arranged at intervals along the first direction, the first sheet area is arranged near the first side, and the second sheet area is arranged near the second side.

[0013] In some optional embodiments, the support further comprises an outer positioning column arranged on the switching end face, an outer positioning hole is arranged on the outer connection sheet area, and the outer positioning column is matched in the outer positioning hole; the outer positioning column comprises a first positioning column near the first side and a second positioning column near the second side; and the outer positioning hole comprises a first positioning hole arranged on the first sheet area and a second positioning hole arranged on the second sheet area.

[0014] In some optional embodiments, the first sheet area is further provided with a splicing positioning hole, so that when the two switching modules are assembled, the second positioning column of one switching module is inserted into the splicing positioning hole of the first sheet area of the other switching module.

[0015] Optionally, the first positioning hole and the splicing positioning hole are connected on the first sheet area to form an integral hole.

[0016] Optionally, the integral hole is an elongated hole extending along the first direction.

[0017] In some alternative embodiments, the end surface of the outer positioning column is provided with an opening, so that the end portion of the outer positioning column is divided into at least two branches, and each branch is provided with a clamping protrusion on the side facing the outer peripheral surface of the outer positioning column, so as to clamp the outer tab area.

[0018] According to the adapter module of some embodiments of the present application, the support comprises: a main support plate, two through holes are provided on the main support plate, and two electrode lead-out tabs are arranged corresponding to the two through holes; one side surface of the main support plate is the adapter end surface, on each electrode lead-out tab, the inner tab area is located on the side of the main support plate opposite to the adapter end surface, one end of the outer tab area is connected to the inner tab area through the through hole, and the other end of the outer tab area is bent and extended towards the edge of the adapter end surface.

[0019] In some alternative embodiments, an inner positioning hole is provided on the inner tab area, and the support further comprises an inner positioning column inserted into the inner positioning hole.

[0020] In some alternative embodiments, a part of the inner tab area of the first lead-out tab is bent and arranged towards the second lead-out tab, and a part of the inner tab area of the second lead-out tab is bent and arranged towards the first lead-out tab.

[0021] According to the adapter module of some embodiments of the present application, the support further comprises: two side support plates, the two side support plates are spaced apart along the first direction, one end of the two side support plates is connected to the main support plate, and the inner tab area of the electrode lead-out tab is located between the two side support plates.

[0022] In some alternative embodiments, at least one of the side support plates is provided with a buckle member for buckling connection to the shell of a battery pack.

[0023] According to the battery pack of the second aspect of the present application, the battery pack comprises: at least one battery cell, a shell, and an adapter module, the shell is sleeved on the outer side of the at least one battery cell; the adapter module is located at one end of the battery cell, the support is connected to the shell and the battery cell, the inner tab area of the positive electrode lead-out tab is connected to the positive electrode of the battery cell, and the inner tab area of the negative electrode lead-out tab is connected to the negative electrode of the battery cell. The adapter module is the adapter module of the first aspect of the present application.

[0024] According to the battery pack of the third aspect of the present application, the battery pack comprises at least two battery packs, and the battery packs are arranged in series along the first direction. The battery pack is the battery pack of the second aspect of the present application.

[0025] The power utilization device according to the fourth aspect of the present application comprises the battery pack according to the third aspect of the present application.

[0026] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be learned from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description, taken in conjunction with the following drawings, of embodiments of the present application, in which:

[0028] Figure 1 is a perspective view of the adapter module in some embodiments of the present application;

[0029] Figure 2 is a front view of the adapter module in some embodiments of the present application;

[0030] Figure 3 is a connection schematic view of two adapter modules in some embodiments of the present application;

[0031] Figure 4 is a perspective view of the adapter module in some embodiments of the present application; Figure 3 is an enlarged view of part B in FIG. 8;

[0032] Figure 5 is a perspective view of two adapter modules in some embodiments of the present application;

[0033] Figure 6 is a structure schematic view of the support in some embodiments of the present application;

[0034] Figure 7 is a structure schematic view of the electrode lead-out sheet in some embodiments of the present application; Figure 1 is an enlarged view of part A in FIG. 9;

[0035] Figure 8 is a structure schematic view of the battery pack in some embodiments of the present application.

[0036] Figure 9 is a structure schematic view of the battery pack in some embodiments of the present application.

[0037] REFERENCE SIGNS:

[0038] the battery pack 100,

[0039] the adapter module 10, the support 11, the main support plate 112, the through hole 1121, the adapter end face 1122, the first side edge 11221, the second side edge 11222, the side support plate 114, the buckle member 1141, the outer positioning column 116, the opening 1161, the clamping convex 1162, the first positioning column 1163, the second positioning column 1164,

[0040] The electrode lead-out piece 13, the positive electrode lead-out piece 131, the negative electrode lead-out piece 132, the inner lead-out piece area 133, the inner positioning hole 1331, the outer lead-out piece area 135, the outer positioning hole 1351, the first lead-out piece 137, the first piece area 1371, the first positioning hole 13711, the splicing positioning hole 13712, the second lead-out piece 139, the second piece area 1391, the second positioning hole 13911,

[0041] The electric core 20 and the shell 30. DETAILED DESCRIPTION

[0042] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0043] In the description of the present application, it is to be understood that the terms "thickness", "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation to be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] Reference is made below to Figures 1-9 The adapter module 10 according to the first aspect of the present application is described.

[0046] As shown in Figure 1 and Figure 2 The adapter module 10 includes a bracket 11 and an electrode lead-out piece 13. The bracket 11 has an adapter end surface 1122 extending in a first direction.

[0047] The electrode lead-out piece 13 is used to realize the electrode current transmission of the electric core.

[0048] The electrode lead-out piece 13 is arranged on the support 11. In this way, the electrode lead-out piece 13 can be stably mounted by means of the support 11, and the use stability of the electrode lead-out piece 13 is enhanced, and the problem of loose connection caused by vibration or external force is avoided.

[0049] The electrode lead-out piece 13 includes an inner lead-out piece area 133 and an outer lead-out piece area 135 connected to each other, and the inner lead-out piece area 133 is used to connect the electrode of the battery cell 20.

[0050] The inner lead-out piece area 133 is the part of the electrode lead-out piece 13 that directly contacts the electrode of the battery cell 20. The shape and size of the inner lead-out piece area 133 are suitable for contacting the electrode of the battery cell 20, so as to ensure the close fit and good conduction between the two.

[0051] The outer lead-out piece area 135 is the part of the electrode lead-out piece 13 that realizes connection with the next battery pack 100.

[0052] Among them, the electrode lead-out piece 13 is two and includes a first lead-out piece 137 and a second lead-out piece 139, one of the first lead-out piece 137 and the second lead-out piece 139 is the positive electrode lead-out piece 131, and the other is the negative electrode lead-out piece 132.

[0053] In combination Figure 2 , the first lead-out piece 137 is the positive electrode lead-out piece 131, and the second lead-out piece 139 is the negative electrode lead-out piece 132. In some technical solutions, the first lead-out piece 137 is the negative electrode lead-out piece 132, and the second lead-out piece 139 is the positive electrode lead-out piece 131.

[0054] As shown in Figure 2 , the outer lead-out piece area 135 of the first lead-out piece 137 is a first piece area 1371, and the outer lead-out piece area 135 of the second lead-out piece 139 is a second piece area 1391. The first piece area 1371 and the second piece area 1391 are arranged in the first direction and away from each other.

[0055] The extension directions of the first piece area 1371 and the second piece area 1391 are opposite, which helps to realize the staggered insertion of the electrode lead-out piece 13 when the battery packs 100 are stacked, thereby simplifying the connection process and reducing the use of connecting pieces.

[0056] As shown in Figures 3-5 , the distance between the first piece area 1371 and the adapter end face 1122 is greater than the distance between the second piece area 1391 and the adapter end face 1122, so that when the two adapter modules 10 are assembled in the first direction, the first piece area 1371 of one of the adapter modules 10 is overlapped on the second piece area 1391 of the other adapter module 10.

[0057] Specifically, the distance between the first section 1371 and the adapter end face 1122 is greater than the distance between the second section 1391 and the adapter end face 1122. This distance difference provides a connection space for the staggered insertion of the electrode lead-out tabs 13. When two adapter modules 10 are assembled along the first direction, the first section 1371 of one of the adapter modules 10 can be overlapped on the second section 1391 of the other adapter module 10, thereby achieving direct transmission of current.

[0058] Due to the staggered arrangement between the first section 1371 and the second section 1391, and the different distance settings between them and the adapter end face 1122, it can be ensured that the electrode lead-out tabs 13 can be stably maintained in the correct position during the stacking and connection of the battery pack 100, and a good electrical connection with the external connecting piece is formed.

[0059] According to the adapter module 10 of the embodiment of the utility model, through the staggered insertion and direct overlap of the electrode lead-out tabs 13, the use of traditional connecting tabs can be omitted, redundant components are reduced, and the series connection step is simplified, which helps to reduce the risk of over-current temperature rise and improve the safety of the battery pack 100. At the same time, the overlapping connection of the first section 1371 and the second section 1391 also makes the contact area larger and the connection reliability higher. Moreover, the overlapping position is reserved during the processing of the adapter module 10, so that when the two adapter modules 10 are spliced, the position of the overlapping contact of the first section 1371 and the second section 1391 is determined, and there is no need to find another position, which helps to optimize the space utilization rate and maintain the neatness of the overall appearance after splicing. Furthermore, the current can be directly transmitted through the electrode lead-out tabs 13, so the current flow distance and resistance can be reduced, and the current transmission efficiency of the battery can be improved.

[0060] In some optional embodiments, the lengths of the first section 1371 and the second section 1391 after extending along the first direction can be consistent or inconsistent.

[0061] When the lengths of the first section 1371 and the second section 1391 after extending along the first direction are consistent, the two can achieve complete overlap after overlapping. This overlap not only enhances the overall stability of the structure, ensures the firmness of the connection during transportation or use, but also effectively prevents the problem of shaking or misalignment caused by length mismatch.

[0062] When the lengths of the first section 1371 and the second section 1391 after extending along the first direction are inconsistent, i.e., the first section 1371 and the second section 1391 are designed to be long and short. In this way, by reducing the length of one of them, the cost of the required material can be reduced under the premise of ensuring the basic connection function, and the overall weight can be reduced.

[0063] In combination Figure 4According to the adapter module 10 of some embodiments of the present application, the distance between the first area 1371 and the adapter end face 1122 is L1, the distance between the second area 1391 and the adapter end face 1122 is L2, and the thickness of the second area 1391 is d2, which satisfy the condition: L1 = L2 + d2.

[0064] The first area 1371 is a part of the first lead-out sheet 137. Here, L1 refers to the vertical distance from the adapter end face 1122 to the nearest edge of the first area 1371.

[0065] The second area 1391 is a part of the second lead-out sheet 139, and the vertical distance between it and the adapter end face 1122 is L2. Here, similar to L1, L2 refers to the vertical distance from the adapter end face 1122 to the nearest edge of the second area 1391.

[0066] In this technical solution, the distance L1 between the first area 1371 and the adapter end face 1122 is equal to the distance L2 between the second area 1391 and the adapter end face 1122 plus the thickness d2 of the second area 1391. In this way, when two adapter modules 10 are spliced along a predetermined direction (such as the stacking direction), the first area 1371 can be accurately aligned with the second area 1391 of another adapter module 10. This alignment not only ensures physical contact, but more importantly, ensures the effectiveness and reliability of the electrical connection.

[0067] Based on the height alignment, the first area 1371 and the second area 1391 can achieve close contact. This close contact can reduce resistance loss during current transmission, improving the overall efficiency and performance of the battery pack. At the same time, the large contact area between the two ensures high connection reliability.

[0068] In addition to electrical connection, such arrangement also enhances the mechanical stability between the adapter modules 10. The close contact between the first area 1371 and the second area 1391 helps to prevent the adapter modules 10 from loosening or falling off under vibration or impact conditions, thereby improving the overall reliability and durability of the battery pack.

[0069] Optionally, as shown in Figures 1-3 the adapter end face 1122 has a first side edge 11221 and a second side edge 11222, the first side edge 11221 and the second side edge 11222 are arranged in a first direction, the first area 1371 is arranged adjacent to the first side edge 11221, and the second area 1391 is arranged adjacent to the second side edge 11222. The first area 1371 is arranged on the adapter end face 1122 in a spaced manner and extends beyond the first side edge 11221 in the first direction.

[0070] In the above technical solution, when the two adapter modules 10 are spliced along the first direction, their adapter end faces 1122 will contact each other. Since the first piece area 1371 exceeds the first side edge 11221, it can achieve overlapping contact with the second piece area 1391 of the adjacent adapter module 10.

[0071] Through overlapping contact, the current is directly transmitted between adjacent adapter modules 10 without the need for additional connectors or wires. This further simplifies the connection process and improves the reliability and efficiency of the connection.

[0072] According to some embodiments of the present application, the adapter module 10, as shown in Figures 1-2 , Figure 6 The bracket 11 also includes an outer positioning column 116 provided on the adapter end face 1122, and the outer piece area 135 is provided with an outer positioning hole 1351, and the outer positioning column 116 is fitted in the outer positioning hole 1351.

[0073] The outer positioning column 116 is used to provide guiding and positioning functions when splicing two adjacent adapter modules 10. Optionally, the outer positioning column 116 can be cylindrical, conical or other shapes. The shape, size and position of the outer positioning hole 1351 should match the outer positioning column 116 to ensure that they can be smoothly and accurately docked.

[0074] Specifically, when it is necessary to splice two adjacent adapter modules 10 together, the outer positioning column 116 of one of the adapter modules 10 will naturally align and insert into the outer positioning hole 1351 of the other adapter module 10. During this process, the outer positioning column 116 plays a guiding and aligning role, ensuring the accuracy and stability of the splicing.

[0075] Once the outer positioning column 116 is fully inserted into the outer positioning hole 1351, they form a stable mechanical connection, which can effectively prevent the adapter modules 10 from moving or misaligning during subsequent use.

[0076] This cooperation structure of the outer positioning column 116 and the outer positioning hole 1351 not only simplifies the splicing process of the adapter module 10 and improves the assembly efficiency, but also ensures that the spliced structure has sufficient strength and stability.

[0077] Referring to Figure 2 , the outer positioning column 116 includes a first positioning column 1163 adjacent to the first side edge 11221 and a second positioning column 1164 adjacent to the second side edge 11222. The outer positioning hole 1351 includes a first positioning hole 13711 provided on the first piece area 1371 and a second positioning hole 13911 provided on the second piece area 1391.

[0078] In one aspect, in the same adapter module 10, the first positioning column 1163 is inserted into the first positioning hole 13711, forming a positioning constraint for the first area 1371, effectively preventing the first area 1371 from unnecessary deviation when subjected to external forces or vibrations, thus ensuring that the first area 1371 remains in a predetermined position.

[0079] On the other hand, in the same adapter module 10, the second positioning column 1164 is inserted into the second positioning hole 13911, forming a positioning constraint for the second area 1391, thereby enhancing the stability of the second area 1391 and preventing it from unnecessary deviation when subjected to external forces or vibrations.

[0080] Through the positioning of the first area 1371 and the second area 1391, the adapter module 10 can ensure that the electrode lead-out sheet 13 maintains the correct position and spacing. This means that the electrode lead-out sheet 13 can accurately and correctly connect with the internal and external circuits of the module, thereby forming a stable and efficient connection.

[0081] In some optional embodiments, as shown in Figures 1-4 The first area 1371 is also provided with a splicing positioning hole 13712, which allows the second positioning column 1164 of one adapter module 10 to be inserted into the splicing positioning hole 13712 of the first area 1371 of another adapter module 10 when the two adapter modules 10 are spliced.

[0082] Specifically, when two adjacent adapter modules 10 are spliced, the second positioning column 1164 of one adapter module 10 is inserted into the splicing positioning hole 13712 of the adjacent adapter module 10. This arrangement allows the two adapter modules 10 to be locked to each other in a simple and effective manner when spliced, thereby achieving a more stable connection. This connection not only improves the overall stability, but also ensures the positional accuracy of the first area 1371 after splicing.

[0083] In some optional solutions, the first positioning hole 13711 and the splicing positioning hole 13712 are two independent holes. This provides higher independence and flexibility, and each hole can be optimized in size and shape according to the needs of the positioning column.

[0084] Alternatively, on the first area 1371, the first positioning hole 13711 and the splicing positioning hole 13712 are connected to form an integral hole. In this way, the structure of the module can be simplified, and the manufacturing convenience can be improved. By merging the splicing positioning hole 13712 and the first positioning hole 13711 into one hole, the space can be effectively utilized, while meeting the dual requirements of positioning and splicing. In such a configuration, the first positioning column 1163 can be inserted into a part of the hole to achieve the positioning of the first area 1371, and the second positioning column 1164 of another adapter module 10 can be inserted into another part of the hole to achieve the close splicing between the two modules.

[0085] In some optional embodiments, the integral hole is a long hole extending in the first direction. In this way, the first positioning column 1163 can be positioned at one end of the long hole, and the second positioning column 1164 can be positioned at the other end of the long hole. Through the arrangement of the long hole, the first positioning column 1163 and the second positioning column 1164 can be more easily inserted and fixed, thereby simplifying the assembly process.

[0086] According to some optional embodiments of the present application, as shown in Figure 7 The end face of the outer positioning column 116 is provided with an opening 1161, so that the end part of the outer positioning column 116 is divided into at least two branches, and each branch is provided with a clamping protrusion 1162 on the side facing the outer circumferential surface of the outer positioning column 116, so as to clamp the outer connecting area 135.

[0087] In the above technical solution, when the outer connecting area 135 is inserted, the opening 1161 of the outer positioning column 116 is in a closed state, so that the entire outer positioning column 116 looks like a compact columnar structure. This closed state helps to reduce the resistance during insertion, so that the outer positioning column 116 can be more smoothly inserted into the outer positioning hole 1351 of the outer connecting area 135.

[0088] The outer connecting area 135 is provided with outer positioning holes 1351 matched with the outer positioning column 116, and the shapes and sizes of the outer positioning holes 1351 are designed to be just capable of accommodating the insertion of the outer positioning column 116.

[0089] With the continuous insertion of the outer positioning column 116, the opening 1161 begins to gradually open. The opening 1161 gradually opens, causing the branches and clamping protrusions 1162 to begin to expand outward, gradually approaching the inner wall of the outer connecting area 135.

[0090] When the outer positioning column 116 is inserted to a predetermined position, the opening 1161 is fully opened, and the branches and clamping protrusions 1162 are fully expanded and tightly clamped to the inner wall of the outer connecting area 135.

[0091] Due to the clamping action of the branches and clamping protrusions 1162, the connection between the outer positioning column 116 and the outer connecting area 135 is very stable and can resist the influence of external forces or vibrations.

[0092] This connection method is not only simple and convenient, but also has high reliability, which can ensure the accurate alignment and stable connection between the modules or components.

[0093] Alternatively, the shape and size of the opening 1161 on the outer positioning column 116 can be adjusted according to specific needs, thereby adapting to different clamping and positioning requirements.

[0094] According to some embodiments of the adapter module 10 of the utility model, Figure 6 As shown in the figure, the support 11 includes a main support plate 112. Here, the main support plate 112 serves as the basis of the adapter module 10, providing the necessary support and stability.

[0095] The main support plate 112 is provided with two through holes 1121, and the two electrode lead-out sheets 13 are arranged corresponding to the two through holes 1121. The positions and sizes of the two through holes 1121 are determined according to the shapes and sizes of the electrode lead-out sheets 13. The through holes 1121 provide mounting channels for the electrode lead-out sheets 13, ensuring that the electrical connection between the outer tab area 135 and the inner tab area 133 is not hindered.

[0096] The electrode lead-out sheets 13 are arranged corresponding to the two through holes 1121, that is, each through hole 1121 corresponds to an electrode lead-out sheet 13.

[0097] In combination Figures 1-2 and Figure 8 , one side surface of the main support plate 112 is the adapter end surface 1122, on each electrode lead-out sheet 13, the inner tab area 133 is located on the side of the main support plate 112 opposite to the adapter end surface 1122, one end of the outer tab area 135 is connected to the inner tab area 133 through the through hole 1121, and the other end of the outer tab area 135 is bent and extended towards the edge of the adapter end surface 1122.

[0098] Firstly, the bent and extended outer tab area 135 facilitates connection with other adapter modules 10 nearby.

[0099] Secondly, the bent and extended outer tab area 135 can shorten the path of current flow, thereby effectively reducing the resistance. The reduction of resistance means that under the same voltage, the battery can provide greater current, or without increasing the burden of the battery, the current transmission efficiency of the entire circuit is improved. Therefore, the bent and extended outer tab area 135 improves the space utilization of the adapter module 10, and also enhances its electrical performance.

[0100] According to some embodiments of the adapter module 10 of the utility model, in combination Figure 7The inner positioning hole 1331 provides physical support for the inner tab area 133. At the same time, the inner positioning hole 1331 also ensures that the inner tab area 133 is positioned correctly during assembly. The positioning of the inner positioning column greatly improves the positional accuracy of the inner tab area 133, so that it can be tightly fitted after installation, effectively avoiding the problem of poor electrical contact due to positional deviation.

[0101] Optionally, the inner positioning column is two spaced apart along the height direction of the support 11, and the number of inner positioning holes 1331 is matched with the number of inner positioning columns. By setting two positioning points (i.e. two inner positioning columns) in the height direction, the inner tab area 133 can obtain more stable and accurate positioning during assembly. The first inner positioning column provides preliminary support and positioning for the inner tab area 133 at a lower position, and the second inner positioning column further consolidates this positioning at a higher position, ensuring the stability and accuracy of the inner tab area 133 in the vertical direction.

[0102] This double-point positioning method has many advantages. First, the inner positioning column improves the connection strength between the inner tab area 133 and the support 11, making the adapter module 10 more stable when subjected to external forces or vibrations, and less likely to loosen or displace. Second, double-point positioning also optimizes the reliability of electrical connection.

[0103] According to some optional embodiments of the present application, as shown in Figure 8 A portion of the inner tab area 133 of the first lead-out tab 137 is bent towards the second lead-out tab 139, and a portion of the inner tab area 133 of the second lead-out tab 139 is bent towards the first lead-out tab 137.

[0104] By bending, the reliable connection of the inner tab area 133 in the first lead-out tab 137 and the second lead-out tab 139 with other internal structures can be enhanced, thereby making the structure of the first lead-out tab 137 and the second lead-out tab 139 more stable.

[0105] In some technical solutions, at least one end of the first lead-out tab 137 along the height direction is bent towards the second lead-out tab 139, and at least one end of the second lead-out tab 139 along the height direction is bent towards the first lead-out tab 137.

[0106] In some embodiments, in combination with Figure 6 The support 11 further comprises two side support plates 114, which are spaced apart along the first direction, one end of the two side support plates 114 is connected to the main support plate 112, and the inner tab area 133 of the electrode lead-out tab 13 is located between the two side support plates 114.

[0107] The bracket 11 is designed with two side support plates 114, which are spaced apart from each other in the first direction, forming a stable support frame.

[0108] One end of the two side support plates 114 is connected to the main support plate 112, together constituting the support structure of the adapter module 10. The main support plate 112 provides solid support and stability for the adapter module 10. The two side support plates 114 play a further reinforcing role, not only enhancing the load-bearing capacity of the bracket 11, but also providing a stable installation environment for the inner tab area 133 of the electrode lead-out tab 13.

[0109] In particular, the inner tab area 133 of the electrode lead-out tab 13 is constructed between the two side support plates 114. This layout not only makes full use of the space of the bracket 11, but also ensures accurate positioning and stable support of the inner tab area 133 during assembly.

[0110] In addition, the distance between the two side support plates 114 can be set according to the size and shape of the inner tab area 133. This ensures that the inner tab area 133 can be closely attached to the bracket 11, forming a good electrical connection with the bracket 11. At the same time, since the inner tab area 133 is located between the two side support plates 114, it also avoids direct collision with other electrical elements or connection points, thereby improving the overall reliability and service life of the adapter module 10.

[0111] In order to enhance the connection stability between the adapter module 10 and the battery pack 100, in some embodiments as shown in Figure 1 and Figure 6 At least one side support plate 114 is provided with a buckle member 1141 for buckling connection to the housing 30 of the battery pack 100.

[0112] When the adapter module 10 needs to be connected to the battery pack 100, the operator only needs to align the side support plate 114 of the adapter module 10 with the corresponding position on the housing 30 of the battery pack 100, and then form a quick installation of the adapter module 10 through buckling connection.

[0113] In some alternative embodiments, the housing 30 of the battery pack 100 is provided with a clamping groove or a buckle hole. The clamping groove or the buckle hole is adapted to the buckle member 1141. Specifically, by engaging the buckle member 1141 with the buckle groove or the buckle hole on the housing 30 of the battery pack 100, a quick and stable connection between the adapter module 10 and the battery pack 100 can be achieved, without the need for additional fasteners such as screws and nuts, reducing redundant connecting parts and reducing costs.

[0114] In addition, the arrangement can simplify the connection process between the adapter module 10 and the battery pack 100, and improve the maintainability of the entire battery pack 100.

[0115] With reference to Figure 9 According to the battery pack 100 of the second aspect of the present application, it comprises at least one battery cell 20, a shell 30 and an adapter module 10. The shell 30 is sleeved on the outside of the at least one battery cell 20. The adapter module 10 is located at one end of the battery cell 20. The bracket 11 is connected to the shell 30 and the battery cell 20. The inner contact piece area 133 of the positive electrode lead-out sheet 131 is connected to the positive electrode of the battery cell 20. The inner contact piece area 133 of the negative electrode lead-out sheet 132 is connected to the negative electrode of the battery cell 20. The adapter module 10 is the adapter module 10 of the first aspect of the present application.

[0116] The bracket 11 of the adapter module 10 is connected between the shell 30 and the battery cell 20, which ensures the stability of the connection of the adapter module 10.

[0117] Inside the adapter module 10, the inner contact piece area 133 of the positive electrode lead-out sheet 131 is tightly connected to the positive electrode of the battery cell 20, and the inner contact piece area 133 of the negative electrode lead-out sheet 132 is connected to the negative electrode of the battery cell 20. This arrangement realizes reliable electrical connection, so that the battery pack 100 can stably output electric energy. At the same time, since the adapter module 10 adopts the design of the first aspect of the present application, the inner positioning hole 1331 on the inner contact piece area 133 cooperates with the inner positioning column on the bracket 11, which further ensures the stability of the electrical connection.

[0118] According to the battery pack of the third aspect of the present application, it comprises at least two battery packs 100, which are assembled along a first direction. Here, the battery pack 100 is the battery pack 100 of the second aspect of the present application.

[0119] The use of the battery pack with high reliability and stability in the above-mentioned embodiments can improve the safety and stability of the battery pack 100.

[0120] According to the power-consuming equipment of the fourth aspect of the present application, it comprises the battery pack of the third aspect of the present application.

[0121] The use of the battery pack with high stability and safety can improve the use reliability of the power-consuming equipment. It provides stable and efficient electric energy support for various application scenarios of the power-consuming equipment.

[0122] The following will be described in detail with reference to Figure 1 - Figure 9 The battery pack 100 according to the embodiments of the present application will be described in detail with a specific embodiment. It should be understood that the following description is only exemplary and is not a specific limitation of the present application.

[0123] Referring to Figure 9 , the battery pack 100 comprises at least one battery cell 20, a shell 30 and an adapter module 10. The shell 30 is sleeved on the outside of the at least one battery cell 20.

[0124] The adapter module 10 is located at one end of the battery cell 20.

[0125] Referring to Figures 1-2 , the adapter module 10 comprises a bracket 11 and two electrode lead-out sheets 13. The bracket 11 is connected to the shell 30 and the battery cell 20.

[0126] The two electrode lead-out sheets 13 are respectively a first lead-out sheet 137 and a second lead-out sheet 139, one of which is a positive electrode lead-out sheet 131 and the other of which is a negative electrode lead-out sheet 132.

[0127] Referring to Figures 1-2 and Figure 8 , each electrode lead-out sheet 13 comprises a connected inner tab area 133 and an outer tab area 135.

[0128] The inner tab area 133 is used to connect the electrode of the battery cell 20, wherein the inner tab area 133 of the positive electrode lead-out sheet 131 is connected to the positive electrode of the battery cell 20, and the inner tab area 133 of the negative electrode lead-out sheet 132 is connected to the negative electrode of the battery cell 20.

[0129] Referring to Figure 1 , Figure 2 and Figure 6 , the bracket 11 comprises a main support plate 112, two side support plates 114, an inner positioning column and an outer positioning column 116.

[0130] The main support plate 112 is provided with two through holes 1121, and the two electrode lead-out sheets 13 are arranged corresponding to the two through holes 1121.

[0131] One side surface of the main support plate 112 is an adapter end surface 1122, and the adapter end surface 1122 extends along a first direction.

[0132] The two side support plates 114 are spaced apart along the first direction, and one end of the two side support plates 114 is connected to the main support plate 112. The two side support plates 114 are each provided with a buckle member 1141 for connecting the shell 30.

[0133] The inner tab area 133 is located between the two side support plates 114.

[0134] Referring to Figures 1-2 and Figure 8The inner contact area 133 is located on the side of the main support plate 112 opposite to the adapter end face 1122, and one end of the outer contact area 135 is connected to the inner contact area 133 through the through hole 1121, and the other end of the outer contact area 135 is bent and arranged extending towards the edge of the adapter end face 1122.

[0135] The inner positioning hole 1331 is arranged on the inner contact area 133.

[0136] The inner positioning column is inserted into the inner positioning hole 1331.

[0137] Part of the inner contact area 133 of the first lead-out sheet 137 is bent and arranged towards the second lead-out sheet 139, and part of the inner contact area 133 of the second lead-out sheet 139 is bent and arranged towards the first lead-out sheet 137.

[0138] In combination with Figure 1 , Figure 2 and Figure 5 , the outer contact area 135 of the first lead-out sheet 137 is the first area 1371, the outer contact area 135 of the second lead-out sheet 139 is the second area 1391, and the first area 1371 and the second area 1391 are arranged extending along the first direction and away from each other.

[0139] Referring to Figure 3 , the distance between the first area 1371 and the adapter end face 1122 is greater than the distance between the second area 1391 and the adapter end face 1122, so that when the two adapter modules 10 are assembled along the first direction, the first area 1371 of one of the adapter modules 10 is overlapped on the second area 1391 of the other adapter module 10.

[0140] Referring to Figure 4 , the distance between the first area 1371 and the adapter end face 1122 is L1, the distance between the second area 1391 and the adapter end face 1122 is L2, and the thickness of the second area 1391 is d2, which satisfies: L1=L2+d2.

[0141] The opposite two side edges of the adapter end face 1122 are the first side edge 11221 and the second side edge 11222, the first side edge 11221 and the second side edge 11222 are arranged spaced apart along the first direction, the first area 1371 is arranged adjacent to the first side edge 11221, and the second area 1391 is arranged adjacent to the second side edge 11222.

[0142] Referring to Figure 4 , the first area 1371 is arranged spaced apart on the adapter end face 1122 and beyond the first side edge 11221 along the first direction.

[0143] The outer positioning column 116 is arranged on the adapter end surface 1122, and the outer positioning hole 1351 is arranged on the outer connecting piece area 135, and the outer positioning column 116 is matched in the outer positioning hole 1351.

[0144] With reference to Figure 7 The end surface of the outer positioning column 116 is provided with an opening 1161, so that the end part of the outer positioning column 116 is divided into at least two branches, and each branch is provided with a clamping convex 1162 on the side facing the outer peripheral surface of the outer positioning column 116, so as to clamp the outer connecting piece area 135.

[0145] With reference to Figure 2 The outer positioning column 116 comprises a first positioning column 1163 adjacent to the first side edge 11221 and a second positioning column 1164 adjacent to the second side edge 11222.

[0146] With reference to Figure 2 The outer positioning hole 1351 comprises a first positioning hole 13711 arranged on the first piece area 1371 and a second positioning hole 13911 arranged on the second piece area 1391.

[0147] With reference to Figure 2 The first piece area 1371 is further provided with a splicing positioning hole 13712, so that when two adapter modules 10 are assembled, the second positioning column 1164 of one of the adapter modules 10 is inserted into the splicing positioning hole 13712 on the first piece area 1371 of the other adapter module 10.

[0148] With reference to Figure 1 And Figure 2 The first positioning hole 13711 and the splicing positioning hole 13712 are connected on the first piece area 1371 to form an integral hole. The integral hole is a long hole extending in the first direction.

[0149] Other configurations of the battery pack 100 according to the embodiments of the present application, such as a battery pack and an electric device, and operations are known to those skilled in the art, and will not be described in detail here.

[0150] In the description of the present specification, the description referring to the terms “embodiment”, “example” and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0151] Although the embodiments of the utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, replacements and deformations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A patch module, characterized by The utility model relates to a battery cell electrode lead-out module, including: A support has an adapter end face extending in a first direction; An electrode lead-out sheet is provided on the support, the electrode lead-out sheet includes a connected inner tab area and an outer tab area, and the inner tab area is used for connecting the electrode of a battery cell; Wherein, the electrode lead-out sheet is two and includes a first lead-out sheet and a second lead-out sheet, one of the first lead-out sheet and the second lead-out sheet is a positive electrode lead-out sheet, and the other is a negative electrode lead-out sheet; The outer tab area of the first lead-out sheet is a first tab area, the outer tab area of the second lead-out sheet is a second tab area, and the first tab area and the second tab area are arranged in a direction away from each other in the first direction; And the distance between the first tab area and the adapter end face is greater than the distance between the second tab area and the adapter end face, so that when two adapter modules are assembled in the first direction, the first tab area of one of the adapter modules is overlapped on the second tab area of the other adapter module.

2. The adapter module of claim 1, wherein, The distance between the first tab area and the adapter end face is L1, the distance between the second tab area and the adapter end face is L2, and the thickness of the second tab area is d2, which satisfies: L1=L2+d2.

3. The adapter module of claim 1, wherein, The opposite two sides of the adapter end face are a first side and a second side, the first side and the second side are arranged in the first direction, the first tab area is arranged adjacent to the first side, and the second tab area is arranged adjacent to the second side; The first tab area is arranged on the adapter end face with a spacing, and extends beyond the first side in the first direction.

4. The breakout module of claim 3, wherein, The support further includes an outer positioning column provided on the adapter end face, and an outer positioning hole is provided on the outer tab area, and the outer positioning column is fitted in the outer positioning hole; The outer positioning column includes a first positioning column adjacent to the first side and a second positioning column adjacent to the second side; The outer positioning hole includes a first positioning hole provided on the first tab area and a second positioning hole provided on the second tab area.

5. The breakout module of claim 4, wherein, A splicing positioning hole is further provided on the first tab area, so that when two adapter modules are assembled, the second positioning column of one of the adapter modules is inserted into the splicing positioning hole on the first tab area of the other adapter module.

6. The breakout module of claim 5, wherein, On the first tab area, the first positioning hole and the splicing positioning hole are connected to form a whole hole.

7. The breakout module of claim 6, wherein, The whole hole is a long hole extending in the first direction.

8. The breakout module of claim 4, wherein, An end surface of the outer positioning column is provided with an opening, so that the end part of the outer positioning column is divided into at least two branches, and each branch is provided with a clamping convex on one side facing the outer peripheral surface of the outer positioning column to clamp the outer tab area.

9. The breakout module of any of claims 1-8, wherein, The support includes a main support plate, two through holes are provided on the main support plate, and two electrode lead-out sheets are arranged corresponding to the two through holes; One side surface of the main support plate is the adapter end face, the inner tab area is located on the side of the main support plate opposite to the adapter end face on each electrode lead-out sheet, one end of the outer tab area is connected to the inner tab area through the through hole, and the other end of the outer tab area is bent and arranged extending towards the edge of the adapter end face.

10. The breakout module of claim 9, wherein, The inner positioning hole is arranged on the inner connecting piece area of the bracket, and the inner positioning column is inserted into the inner positioning hole.

11. The breakout module of claim 10, wherein, A part of the inner connecting piece area of the first lead-out piece is arranged to be bent towards the second lead-out piece, and a part of the inner connecting piece area of the second lead-out piece is arranged to be bent towards the first lead-out piece.

12. The breakout module of claim 9, wherein, The bracket further comprises two side support plates, the two side support plates are spaced apart along the first direction, and one end of the two side support plates is connected to the main support plate, and the inner connecting piece area of the electrode lead-out piece is located between the two side support plates.

13. The breakout module of claim 12, wherein, At least one side support plate is provided with a buckle element for buckling connection to the shell of the battery pack.

14. A battery pack, characterized by The battery pack comprises: at least one battery cell; a shell, which is sleeved on the outer side of the at least one battery cell; The adapter module according to any one of claims 1-13 is located at one end of the battery cell, the bracket is connected to the shell and the battery cell, the inner connecting piece area of the positive electrode lead-out piece is connected to the positive electrode of the battery cell, and the inner connecting piece area of the negative electrode lead-out piece is connected to the negative electrode of the battery cell.

15. A battery pack, characterized by The battery pack comprises at least two battery packs according to claim 14, and the battery packs are arranged in assembly along the first direction.

16. An electrical device, characterized by The battery pack comprises the battery pack according to claim 15.

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