Module side plate and battery module

Abstract

The utility model discloses a module side plate and a battery module, the module side plate is used for the battery module, and the module side plate is an injection molding integrated piece. And the insulating part wraps at least part of the supporting part along the side peripheral wall of the supporting part and is connected with the supporting part. According to the module side plate disclosed by the utility model, the insulating part wraps at least part of the supporting part along the side peripheral wall of the supporting part and is connected with the supporting part, so that the connection reliability between the insulating part and the supporting part is improved, the situation that the insulating part and the supporting part are separated and fail is reduced, and the safety of a battery module is improved. Meanwhile, the module side plate is an injection molding integrated piece, so that the connection convenience and the connection reliability of the insulating piece and the supporting piece are improved, the insulating piece can have enough thickness, the insulativity is improved, the safety of the battery module is improved, and the insulating piece can be bent to adapt to the shape and the size of the supporting piece.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a module side plate and a battery module. Background Art

[0002] At present, the material of the module side plate is a material with a high thermal conductivity coefficient. There is an insulating film with a thickness of about 0.15 mm and a structural adhesive with a thickness of 0.2 mm between the module side plate and the battery cell. The heat insulation effect between the module side plate and the battery cell is relatively low. Therefore, when one of the battery cells undergoes thermal runaway, the generated heat is easily transferred to the adjacent battery cells through the module side plate, causing the temperature of the adjacent battery cells to rise and leading to thermal runaway, and ultimately resulting in the thermal runaway of the entire module. If the thickness of the insulating film is increased to improve the heat insulation effect, the too thick insulating film cannot be bent, and it is difficult to paste with the module side plate and the reliability is not high, and it is easy to fall off. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a module side plate, which not only improves the connection convenience and connection reliability between the insulating part and the supporting part, but also enables the insulating part to have a sufficient thickness, thereby improving the insulation property and the safety of the battery module, and also enables the insulating part to be bent to adapt to the shape and size of the supporting part.

[0004] The utility model also provides a battery module including the above-mentioned module side plate.

[0005] The module side plate according to the embodiment of the utility model is used for a battery module. The module side plate is an integrally injection-molded part, including: a supporting part; an insulating part, and the insulating part wraps at least part of the supporting part along the side wall of the supporting part and is connected with the supporting part.

[0006] The module side plate according to the embodiment of the utility model wraps at least part of the supporting part along the side wall of the supporting part and is connected with the supporting part, which improves the connection reliability between the insulating part and the supporting part, reduces the occurrence of separation failure between the insulating part and the supporting part, and improves the safety of the battery module. At the same time, the module side plate is an integrally injection-molded part, which not only improves the connection convenience and connection reliability between the insulating part and the supporting part, but also enables the insulating part to have a sufficient thickness, thereby improving the insulation property and the safety of the battery module, and also enables the insulating part to be bent to adapt to the shape and size of the supporting part.

[0007] In some embodiments of the utility model, the supporting part includes a supporting portion and a connecting portion. The connecting portion is arranged at at least one end in the length direction of the supporting portion and extends by bending along the thickness direction of the supporting portion. The insulating part wraps the supporting portion and is connected with the supporting portion.

[0008] In some embodiments of the present utility model, the support member has a first opening.

[0009] In some embodiments of the present utility model, the first openings are arranged in multiple rows spaced along the length direction of the module side plate, and each row of the first openings includes a plurality of the first openings spaced along the width direction of the module side plate.

[0010] In some embodiments of the present utility model, the battery module includes a battery cell, and a second opening is provided on a side of the insulating member facing away from the battery cell, and the second opening extends along the width direction of the module side plate.

[0011] In some embodiments of the present utility model, the second openings are a plurality spaced along the length direction of the module side plate, and in the length direction of the module side plate, the plurality of second openings and the multiple rows of first openings are arranged in a staggered manner.

[0012] In some embodiments of the present utility model, the battery module includes a battery cell, and the battery cell is adhesively connected to the insulating member; and / or, the support member is a metal member or a composite material member; and / or, the support member has a pit, and the diameter of the pit is 20 - 100 nm.

[0013] The battery module according to an embodiment of the present utility model includes: a battery cell; the above-mentioned module side plates, there are two module side plates which are respectively arranged on two sides of the battery cell along the thickness direction of the module side plate and are connected to the battery cell; module end plates, there are two module end plates which are respectively arranged on two sides of the battery cell along the length of the module side plate and are connected to the battery cell, and two ends of each module end plate along the thickness direction of the module side plate are respectively connected to the two module side plates; an output pole assembly, the output pole assembly is arranged on one side of the module end plate along the width direction of the module side plate and is connected to both the module end plate and the battery cell.

[0014] The battery module according to an embodiment of the present utility model, by providing the above-mentioned module side plates, the insulating member wraps at least part of the support member along the side wall of the support member and is connected to the support member, which improves the connection reliability between the insulating member and the support member, reduces the occurrence of disconnection failure between the insulating member and the support member, and improves the safety of the battery module. At the same time, the module side plate is an integrally injection-molded part, which not only improves the connection convenience and connection reliability between the insulating member and the support member, but also enables the insulating member to have a sufficient thickness, thereby improving the insulation performance and the safety of the battery module, and also enables the insulating member to be bent to adapt to the shape and size of the support member.

[0015] In some embodiments of the utility model, the output pole assembly is an integrated part and includes: an output pole base, the output pole base is connected to the module end plate, and the side of the output pole base facing away from the module end plate has a mounting groove; a fastening insert, the fastening insert is arranged in the mounting groove; a bus, one end of the bus is suitable for being connected to the copper bus through the fastening insert, and the other end is suitable for being connected to the battery cell.

[0016] In some embodiments of the present invention, one side of the module end plate along the width direction of the module side plate has a notch, and the output pole assembly is arranged in the notch.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a three-dimensional diagram of a battery module according to an embodiment of the utility model;

[0020] Figure 2 is an exploded view of a battery module according to an embodiment of the utility model;

[0021] Figure 3 is a three-dimensional diagram of a module side panel according to an embodiment of the utility model;

[0022] Figure 4 is an exploded view of a module side panel according to an embodiment of the utility model;

[0023] Figure 5 is a three-dimensional diagram of an output electrode assembly of a battery module according to an embodiment of the utility model;

[0024] Figure 6 It is an exploded view of the output pole assembly of the battery module according to the embodiment of the utility model.

[0025] Reference numerals:

[0026] 100. Battery module;

[0027] 10. Module side panel;

[0028] 1. Support member; 11. Support portion; 12. Connecting portion; 13. First opening;

[0029] 2. Insulating member; 21. Second opening;

[0030] 20. Output terminal assembly; 201. Output terminal base; 2011. Mounting groove; 202. Fastening insert; 203. Bus bar;

[0031] 30. Battery cell;

[0032] 40. Module end plate. Detailed implementation manner

[0033] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. 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 invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "mounting", "connecting", and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] Next, refer to Figures 1 - 4 Describe the module side plate 10 according to the embodiment of the present invention.

[0037] As Figures 1 - 4 shown, the module side plate 10 according to the embodiment of the present invention includes a support member 1 and an insulating member 2.

[0038] Specifically, refer to Figures 1 - 4, the module side plate 10 is for the battery module 100 and is an integrally injection-molded part. The insulating part 2 wraps at least part of the side wall of the support part 1 along the side wall of the support part 1 and is connected to the support part 1. Among them, it should be noted that the support part 1 has a relatively high thermal conductivity and is conductive, while the insulating part 2 (which can be plastic, etc.) wraps at least part of the support part 1, which can not only play an insulating role between the support part 1 and the battery cell 30, but also reduce the heat transfer between the battery cell 30 and the support part 1, thereby reducing the heat transfer efficiency between adjacent battery cells 30 through the support part 1, thus reducing the occurrence of thermal runaway and improving the safety of the battery module 100.

[0039] It can be understood that since the insulating part 2 wraps at least part of the side wall of the support part 1 along the side wall of the support part 1 and is connected to the support part 1, the connection reliability between the insulating part 2 and the support part 1 is improved, and the situation of disconnection failure between the insulating part 2 and the support part 1 is reduced, further improving the safety of the battery module 100. Among them, the side wall of the support part 1 refers to the side wall perpendicular to the two end faces in the length direction of the support part 1.

[0040] In addition, since the insulating part 2 and the support part 1 are integrally injection-molded parts, it not only improves the connection convenience between the insulating part 2 and the support part 1, but also further improves the connection reliability between the insulating part 2 and the support part 1. At the same time, since the insulating part 2 and the support part 1 are integrally injection-molded parts, that is, the bending of the insulating part 2 is realized by the injection molding process rather than by manual bending, so that the insulating part 2 can still be bent when it can have a relatively thick size.

[0041] Therefore, the insulating part 2 and the support part 1 are integrally injection-molded parts, which not only improve the connection convenience and connection reliability between the insulating part 2 and the support part 1, but also make the insulating part 2 have sufficient thickness, thereby improving the insulation performance and the safety of the battery module 100, and also making the insulating part 2 can be bent to adapt to the shape and size of the support part 1.

[0042] According to the module side plate 10 of the embodiment of the present invention, by wrapping at least part of the support part 1 along the side wall of the support part 1 and connecting with the support part 1, the connection reliability between the insulating part 2 and the support part 1 is improved, the situation of disconnection failure between the insulating part 2 and the support part 1 is reduced, and the safety of the battery module 100 is improved. At the same time, the module side plate 10 is an integrally injection-molded part, which not only improves the connection convenience and connection reliability between the insulating part 2 and the support part 1, but also makes the insulating part 2 have sufficient thickness, thereby improving the insulation performance and the safety of the battery module 100, and also making the insulating part 2 can be bent to adapt to the shape and size of the support part 1.

[0043] In some embodiments of the present invention, such as Figures 1 - 4As shown, the support member 1 includes a support portion 11 and a connection portion 12. The connection portion 12 is provided at at least one end in the length direction of the support portion 11 and extends by bending along the thickness direction of the support portion 11. The insulating member 2 wraps the support portion 11 and is connected to the support portion 11. It should be noted that the insulating member 2 wraps the support portion 11 along the peripheral wall of the support portion 11. In the present utility model, one support member 1 has two connection portions 12, which are respectively provided at both ends in the length direction of the support portion 11. The battery module 100 further includes module end plates 40 and battery cells 30. There are two module end plates 40, which are respectively provided on both sides of the length of the module side plate 10. The connection portion 12 is adapted to be connected to the module end plate 40.

[0044] It can be understood that one side in the thickness direction of the support portion 11 is adapted to abut against the battery cell 30. The insulating member 2 wraps the support portion 11, so as to insulate between the support portion 11 and the battery cell 30 and reduce the heat transfer between the support portion 11 and the battery cell 30, thereby ensuring the safety of the battery module 100. At the same time, it can avoid interfering with the connection portion 12, so that the connection portion 12 can be smoothly connected to the module end plate 40.

[0045] In some embodiments of the present utility model, as Figure 3 and Figure 4 shown, the support member 1 has a first opening 13. It can be understood that the setting of the first opening 13 not only reduces the weight of the support member 1, thereby reducing the cost, which is beneficial to the lightweight of the battery module 100, but also improves the economy of the battery module 100.

[0046] In addition, due to the setting of the first opening 13, the effective heat conduction area of the support member 1 is reduced, thereby reducing the overall heat conduction rate of the support member 1 and the heat conduction rate of the module side plate 10, further reducing the heat transfer between the battery cell 30 and the support member 1, thereby reducing the heat transfer efficiency between adjacent battery cells 30 through the support member 1, thus reducing the occurrence of thermal runaway and improving the safety of the battery module 100.

[0047] In some embodiments of the present utility model, as Figure 3 and Figure 4 shown, the first openings 13 are arranged in multiple rows spaced apart along the length direction of the module side plate 10, and each row of first openings 13 includes a plurality of first openings 13 spaced apart along the width direction of the module side plate 10. Thus, the weight of the support member 1 is further reduced, the cost is further reduced, which is beneficial to the lightweight of the battery module 100 and improves the economy of the battery module 100. At the same time, the effective heat conduction area of the support member 1 is also further reduced, the heat transfer between the battery cell 30 and the support member 1 is further reduced, thereby reducing the heat transfer efficiency between adjacent battery cells 30 through the support member 1, thus reducing the occurrence of thermal runaway and improving the safety of the battery module 100.

[0048] For example, in the examples shown in Figure 3 and Figure 4 the first openings 13 are arranged in seven rows spaced along the length direction of the module side plate 10. However, the present invention is not limited thereto, and the first openings 13 may be other rows, such as 3 rows, 4 rows, 5 rows or 8 rows, etc. Each row of the first openings 13 includes five first openings 13 spaced along the width direction of the module side plate 10. However, the present invention is not limited thereto, and each row of the first openings 13 may include other numbers of first openings 13, such as 3, 4, 6 or 10, etc.

[0049] In some embodiments of the present invention, as shown in Figures 1 - 4 the battery module 100 includes a battery cell 30. The side of the insulating member 2 facing away from the battery cell 30 has a second opening 21, and the second opening 21 extends along the width direction of the module side plate 10. It can be understood that the setting of the second opening 21 can play a role in positioning and fixing the module side plate 10 during injection molding, thereby improving the quality of injection molding and the forming effect of the module side plate 10.

[0050] Furthermore, the width of the second opening 21 is 10 - 30 mm, such as 10 mm, 15 mm, 20 mm or 30 mm, etc. Thereby, the second opening 21 has an appropriate width, which not only avoids the excessive width of the second opening 21 and ensures the structural strength of the insulating member 2, but also enables the second opening 21 to have a sufficient width, thereby improving the positioning and fixing effect of the module side plate 10 during injection molding, and thus improving the quality of injection molding and the forming effect of the module side plate 10.

[0051] Furthermore, the distances between the two ends of the second opening 21 in the length direction and the two ends of the corresponding insulating member 2 in the width direction are 3 - 15 mm, such as 3 mm, 8 mm, 10 mm or 15 mm, etc. Thereby, it not only ensures that the second opening 21 has a sufficient length, thereby improving the positioning and fixing effect of the module side plate 10 during injection molding, and thus improving the quality of injection molding and the forming effect of the module side plate 10, but also avoids the gap between one end of the second opening 21 in the length direction and one end of the corresponding insulating member 2 in the width direction from being too small, thereby ensuring the structural strength of the insulating member 2.

[0052] In some embodiments of the present invention, as shown in Figure 3 and Figure 4 the second openings 21 are arranged in multiple rows spaced along the length direction of the module side plate 10. It can be understood that the setting of the multiple second openings 21 further improves the positioning and fixing effect of the module side plate 10 during injection molding, and thus further improves the quality of injection molding and the forming effect of the module side plate 10.

[0053] Further, the distance between two adjacent second openings 21 is 25 - 45 mm, such as 25 mm, 30 mm, 40 mm or 45 mm, etc. Thus, the distance between two adjacent second openings 21 is appropriate, avoiding the situation where the distance between two adjacent second openings 21 is too small and the second openings 21 are too dense, thereby ensuring the structural strength of the insulating member 2. Also, within the limited length range of the insulating member 2, enough second openings 21 can be provided, thereby improving the positioning and fixing effect of the module side plate 10 during injection molding, and thus improving the quality of injection molding and the forming effect of the module side plate 10.

[0054] For example, in Figure 3 and Figure 4 In the illustrated example, there are six second openings 21, but the present invention is not limited to this. The number of second openings 21 can also be other numbers, such as 3, 4, 7 or 8, etc.

[0055] Further, as Figure 3 and Figure 4 shown, in the length direction of the module side plate 10, multiple second openings 21 and multiple rows of first openings 13 are arranged in a staggered manner. Thus, the first openings 13 and the second openings 21 are prevented from communicating with each other, thereby improving the sealing performance. At the same time, since the structure at the first openings 13 on the support member 1 is relatively weak and the structure at the second openings 21 on the insulating member 2 is relatively weak, if each first opening 13 and each second opening 21 are arranged opposite to each other in the length direction of the module side plate 10, the weak structural parts of the support member 1 and the insulating member 2 will be superimposed, resulting in too low structural strength at this position of the module side plate 10 and being prone to breakage. However, by arranging multiple second openings 21 and multiple rows of first openings 13 in a staggered manner in the length direction of the module side plate 10, the weak structural parts of the support member 1 and the insulating member 2 are staggered, thereby reducing the risk of breakage of the module side plate 10.

[0056] In some embodiments of the present invention, the battery module 100 includes a battery cell 30, and the battery cell 30 is adhesively connected to the insulating member 2. It can be understood that the adhesive connection between the battery cell 30 and the insulating member 2 can not only improve the connection reliability between the battery cell 30 and the module side plate 10, but also reduce the heat transfer between the battery cell 30 and the module side plate 10 through the glue, improving the safety of the battery module 100.

[0057] Further, one side of the insulating member 2 facing the battery cell 30 has an adhesive application groove and a limiting rib (not shown). The adhesive application groove is used for setting glue to realize the connection between the insulating member 2 and the battery cell 30, and the setting of the limiting rib can ensure that the battery cell 30 and the insulating member 2 remain in the correct position after applying glue, preventing the performance of the battery module 100 from being affected due to displacement.

[0058] Among them, the glue application tank and the limiting ribs are known to those of ordinary skill in the art and will not be described in detail here.

[0059] In some embodiments of the present utility model, the support member 1 is a metal member (such as copper, iron, or aluminum) or a composite material member (such as an alloy member); thus, the support member 1 has sufficient structural strength, improving the protection effect on the battery cell 30.

[0060] In some embodiments of the present utility model, the support member 1 has pits (not shown), and the diameter of the pits is 20 - 100 nm, such as 20 nm, 30 nm, 50 nm, or 100 nm, etc. It can be understood that the setting of the pits can increase the contact area between the insulating member 2 and the support member 1, thereby improving the adhesion between the two. When the insulating member 2 covers these pits on the support member 1 through injection molding, the molecules of the insulating member 2 can penetrate more deeply into the tiny gaps of the pits, making the adhesion between the insulating member 2 and the support member 1 closer and more uniform.

[0061] Therefore, the setting of the pits further improves the connection reliability between the insulating member 2 and the support member 1.

[0062] Next, refer to the attached Figures 1 - 6 Describe the battery module 100 according to the embodiments of the present utility model.

[0063] As Figures 1 - 6 shown, the battery module 100 according to the embodiments of the present utility model includes: a battery cell 30, the above-mentioned module side plate 10, module end plate 40, and output pole assembly 20.

[0064] Specifically, as Figure 1 and Figure 2 shown, there are two module side plates 10, which are respectively arranged on both sides of the battery cell 30 along the thickness direction of the module side plate 10 and are connected to the battery cell 30; there are two module end plates 40, which are respectively arranged on both sides of the battery cell 30 along the length of the module side plate 10 and are connected to the battery cell 30, and both ends of each module end plate 40 along the thickness direction of the module side plate 10 are respectively connected to the two module side plates 10; the output pole assembly 20 is arranged on one side of the module end plate 40 along the width direction of the module side plate 10 and is connected to both the module end plate 40 and the battery cell 30.

[0065] It can be understood that through the arrangement of the two module end plates 40 and the two module side plates 10, the battery cells 30 can be protected in the circumferential direction. The output terminal assembly 20 is connected to the module end plate 40, so that the output terminal assembly 20 can be fixed relative to the module end plate 40, thereby ensuring the installation stability of the output terminal assembly 20. The output terminal assembly 20 is connected to the battery cell 30. At the same time, one end of the output terminal assembly 20 facing away from the battery cell 30 is connected to the copper bar, so that the current on the battery cell 30 can be output through the output terminal assembly 20 and the copper bar, thereby realizing power supply to the electrical equipment.

[0066] For the battery module 100 according to the embodiment of the present invention, by arranging the above-mentioned module side plate 10, the insulating member 2 wraps at least part of the side wall of the support member 1 along the side wall of the support member 1 and is connected to the support member 1, which improves the connection reliability between the insulating member 2 and the support member 1, reduces the occurrence of disengagement failure between the insulating member 2 and the support member 1, and improves the safety of the battery module 100. At the same time, the module side plate 10 is an integrally injection-molded part, which not only improves the connection convenience and connection reliability between the insulating member 2 and the support member 1, but also enables the insulating member 2 to have a sufficient thickness, thereby improving the insulation performance and the safety of the battery module 100, and also enables the insulating member 2 to be bent to adapt to the shape and size of the support member 1.

[0067] In some embodiments of the present invention, such as Figure 1 , Figure 2 , Figure 5 and Figure 6 shown, the output terminal assembly 20 is an integral part and includes: an output terminal base 201, a fastening insert 202, and a bus bar 203. The output terminal base 201 is connected to the module end plate 40, and a mounting groove 2011 is provided on one side of the output terminal base 201 facing away from the module end plate 40; the fastening insert 202 is arranged in the mounting groove 2011; one end of the bus bar 203 is adapted to be connected to the copper bar through the fastening insert 202, and the other end is adapted to be connected to the battery cell 30.

[0068] Among them, it should be noted that the fastening insert 202 is disposed in the installation groove 2011 and is connected (such as by injection molding) to the peripheral wall and the bottom wall of the installation groove 2011 as a whole, thereby improving the connection reliability between the fastening insert 202 and the output pole base 201, and at the same time reducing the assembly gap between the fastening insert 202 and the output pole base 201. The fastening insert 202 is a conductive member, and the fastening insert 202 is connected (such as by welding) to the bus bar 203 as a whole. Both the fastening insert 202 and the bus bar 203 are provided with mounting holes for fasteners to pass through, so as to realize the connection and fixation between the bus bar 203 and the copper bar and the output pole base 201. The bus bar 203 includes a first conductive sheet and a second conductive sheet connected to each other. The first conductive sheet is adapted to be connected to the battery cell 30, and the first conductive sheet can be an aluminum bar. The second conductive sheet is adapted to be connected to the copper bar, and the second conductive sheet can be a copper bar. At the same time, the second conductive sheet is bent and extended in an S shape in the width direction of the module end plate 40, which can be used to absorb the expansion force of the battery cell 30 and reduce the height of mounting and fixing the bus bar 203.

[0069] It can be understood that the output pole assembly 20 is an integral part, for example, formed as an integral part by injection molding. Compared with the output pole assembly 20 being assembled together with multiple detachable parts, the number of parts is reduced, the installation process of the output pole assembly 20 is simplified, and at the same time, the assembly tolerance between multiple parts can be reduced, thereby improving the assembly accuracy of the output pole assembly 20, and thus improving the connection reliability and stability between the output pole assembly 20 and other electrical components.

[0070] In some embodiments of the present invention, as Figure 1 、 Figure 2 、 Figure 5 and Figure 6 shown, one side of the module end plate 40 along the width direction of the module side plate 10 has a notch, and the output pole assembly 20 is disposed in the notch. It can be understood that the setting of the notch can play a role in initially positioning the output pole assembly 20, can limit the movement of the output pole assembly 20 along the thickness direction of the module side plate 10, and improve the installation stability of the output pole assembly 20. At the same time, the output pole assembly 20 can be first disposed in the notch, and then subsequent connection operations can be performed after positioning, reducing the installation difficulty of the output pole assembly 20, and thus improving the installation efficiency of the output pole assembly 20.

[0071] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0072] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A module side plate, characterized in that For a battery module, the module side plate is an injection-molded one-piece and includes: A support member; An insulating member that wraps at least a part of the support member along the side wall of the support member and is connected to the support member. The support member includes a support portion and a connecting portion. The connecting portion is provided at at least one end in the length direction of the support portion and bends and extends in the thickness direction of the support portion. The insulating member wraps the support portion and is connected to the support portion.

2. The module side plate according to claim 1, wherein The support member has a first opening.

3. The module side plate according to claim 2, wherein, The first openings are arranged in multiple rows spaced apart in the length direction of the module side plate, and each row of the first openings includes a plurality of the first openings spaced apart in the width direction of the module side plate.

4. The module side plate according to claim 3, wherein, The battery module includes battery cells. The side of the insulating member facing away from the battery cells has a second opening that extends in the width direction of the module side plate.

5. The module side plate according to claim 4, wherein The second openings are a plurality of openings spaced apart in the length direction of the module side plate. In the length direction of the module side plate, the plurality of second openings and the multiple rows of first openings are arranged in a staggered manner.

6. The module side plate according to claim 1, wherein The battery module includes battery cells, and the battery cells are adhesively connected to the insulating member; And / or, the support member is a metal member or a composite material member; And / or, the support member has a pit with a diameter of 20 - 100 nm.

7. A battery module, characterized in that, Including: Battery cells; The module side plates according to any one of claims 1 - 6, there are two module side plates which are respectively arranged on both sides of the battery cells in the thickness direction of the module side plate and are connected to the battery cells; Module end plates, there are two module end plates which are respectively arranged on both sides of the battery cells in the length direction of the module side plate and are connected to the battery cells. Each end of each module end plate in the thickness direction of the module side plate is respectively connected to the two module side plates; An output terminal assembly, which is arranged on one side of the module end plate in the width direction of the module side plate and is connected to both the module end plate and the battery cells.

8. The battery module according to claim 7, wherein, The output terminal assembly is an integral part and includes: An output terminal base that is connected to the module end plate. The side of the output terminal base facing away from the module end plate has a mounting groove; A fastening insert that is arranged in the mounting groove; A bus bar, one end of the bus bar is adapted to be connected to a copper bar through the fastening insert, and the other end is adapted to be connected to the battery cells.

9. The battery module according to claim 8, wherein, One side of the module end plate in the width direction of the module side plate has a notch, and the output terminal assembly is arranged in the notch.

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