Connecting plate and extensible module with same

Abstract

The utility model provides a connecting plate and a scalable module with the same, the connecting plate is used for connecting two adjacent battery modules, the connecting plate is provided with a first connecting part and a second connecting part which are arranged at an interval, the first connecting part is connected with one of the two adjacent battery modules, and the second connecting part is connected with the other of the two adjacent battery modules. The first connecting part is connected with one of the two adjacent battery modules, the second connecting part is connected with the other one of the two adjacent battery modules, and a weight reduction part is formed between the first connecting part and the second connecting part. According to the connecting plate disclosed by the utility model, the first connecting part and the second connecting part are arranged, so that the adjacent battery modules form an integral long module, the connection of the battery modules can be facilitated, the design freedom of the length of the battery modules can be increased, and meanwhile, the volume of a plurality of battery modules can be reduced; and the energy density of the extensible module can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of expandable module manufacturing, in particular to a connecting plate and an expandable module having the same. Background Art

[0002] In the existing solutions, in order to increase the strength and rigidity of the expandable module box, cross beams or longitudinal beams are generally designed in the box. The module can only be placed in a frame isolated by the cross beams or longitudinal beams. As a result, the length of the battery module is limited by the cross beams or longitudinal beams, affecting the length design freedom of the battery module. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a connecting plate, which can improve the length design freedom of the battery module.

[0004] The utility model also provides an expandable module having the connecting plate.

[0005] According to the connecting plate of the embodiment of the utility model, which is used to connect any two adjacent battery modules, the connecting plate is formed with a first connecting portion and a second connecting portion which are arranged at intervals, the first connecting portion is connected to one of the two adjacent battery modules, the second connecting portion is connected to the other of the two adjacent battery modules, and a weight reduction portion is formed between the first connecting portion and the second connecting portion.

[0006] According to the connecting plate of the utility model, a first connecting portion and a second connecting portion are provided so that adjacent battery modules are formed into an integral long module, thereby facilitating the connection of the battery modules and increasing the design freedom of the battery module length. At the same time, the volume of multiple battery modules can be reduced and the energy density of the expandable module can be improved.

[0007] According to some embodiments of the present invention, the connecting plate includes a first connecting member and a second connecting member, the first connecting member is connected to both sides of the second connecting member, the first connecting portion is formed on one of the two first connecting members, and the second connecting portion is formed on the other of the two first connecting members.

[0008] According to some embodiments of the present invention, the first connecting portion and the second connecting portion are both formed as limiting grooves.

[0009] According to some optional embodiments of the present invention, at least one limiting groove is formed on a surface of the first connecting member on one side facing away from the battery module, and a convex strip is provided at one end of the limiting groove.

[0010] According to some embodiments of the utility model, the second connecting member is in the shape of a straight line, or in the shape of a cross, and the second connecting member extends along the width direction of the battery module. When the second connecting member is in the shape of a cross, the second connecting member includes: a first connecting segment, the first connecting segment extends in a horizontal direction; a second connecting segment, the second connecting segment extends in a vertical direction, and the second connecting segment is connected to both ends of the width direction of the first connecting segment; a third connecting segment, the third connecting segment extends in a horizontal direction, the third connecting segment is connected to one end of the second connecting segment away from the first connecting segment, and the end of the third connecting segment close to the battery module is connected to the first connecting member.

[0011] According to some optional embodiments of the present invention, the weight-reducing portion is formed as an avoidance groove, and the first connecting segment and the two second connecting segments define the avoidance groove.

[0012] According to some embodiments of the present invention, the third connecting segment is formed with a through hole, and the through hole passes through the third connecting segment in an extension direction of the second connecting member.

[0013] According to some embodiments of the present invention, a mounting hole is formed in the first connecting segment, and the mounting hole penetrates the first connecting segment in a thickness direction of the first connecting segment.

[0014] The expandable module according to the embodiment of the second aspect of the utility model comprises: at least one connecting plate according to the first aspect of the utility model and a plurality of battery modules, each of the connecting plates being located between two adjacent battery modules.

[0015] According to the expandable module of the utility model, by setting the connecting plate of the first aspect embodiment mentioned above and setting the first connecting part and the second connecting part, adjacent battery modules are formed into an integral long module, thereby facilitating the connection of the battery modules and increasing the design freedom of the battery module length. At the same time, the volume of multiple battery modules can be reduced and the energy density of the expandable module can be improved.

[0016] According to some embodiments of the utility model, the expandable module also includes: an annular fixing belt, which passes through the first connecting part and binds and fixes the connecting plate and the corresponding battery module, and / or the annular fixing belt passes through the second connecting part and binds and fixes the connecting plate and the corresponding battery module.

[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] Figure 1 is a schematic diagram of an expandable module according to an embodiment of the utility model;

[0019] Figure 2 is along Figure 1 Sectional view along line AA;

[0020] Figure 3 yes Figure 2 A schematic diagram of a partial structure of an expandable module at an angle shown in ;

[0021] Figure 4 yes Figure 3 A schematic diagram of another angle of the partial structure of the expandable module shown in ;

[0022] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0023] Figure 6 yes Figure 5 A schematic diagram of an angle of the connecting plate shown in FIG.

[0024] Figure 7 yes Figure 5 Schematic diagram of another angle of the connecting plate shown in .

[0025] Reference numerals:

[0026] 100. Connecting plate;

[0027] 10. first connecting member; 11. first connecting portion; 12. second connecting portion; 13. convex strip;

[0028] 20. second connecting member; 21. first connecting section; 211. mounting hole; 22. second connecting section; 23. third connecting section; 231. through hole; 24. avoidance groove;

[0029] 200, battery cell;

[0030] 300, annular fixing belt;

[0031] 400, thermal insulation pad;

[0032] 500, cushioning material;

[0033] 600, separator beam;

[0034] 700, box body;

[0035] 1000. Expandable modules. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] Please refer to the following Figure 1-7 A connection plate 100 according to an embodiment of the present invention is described.

[0038] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 According to the connecting plate 100 of the embodiment of the utility model, it is used to connect any two adjacent battery modules. The connecting plate 100 is formed with a first connecting portion 11 and a second connecting portion 12 arranged at intervals. The first connecting portion 11 is connected to one of the two adjacent battery modules, and the second connecting portion 12 is connected to the other of the two adjacent battery modules. A weight reduction portion is formed between the first connecting portion 11 and the second connecting portion 12.

[0039] For example, Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a first connection portion 11 and a second connection portion 12 are formed at both ends of the connection plate 100, the first connection portion 11 is connected to the battery module on the left, and the second connection portion 12 is connected to the battery module on the right. The battery module is arranged in a box body, and a partition beam 600 is arranged in the box body, and the partition beam 600 separates adjacent battery modules. Preferably, the connection plate 100 is made of aluminum alloy, so that the weight of the connection plate 100 can be reduced while ensuring the strength of the connection plate 100, thereby reducing the weight of the expandable module 1000.

[0040] The connecting plate 100 of the utility model is provided with a first connecting portion 11 and a second connecting portion 12. The first connecting portion 11 and the second connecting portion 12 cooperate to fix adjacent battery modules, so that the adjacent battery modules are formed into an integral long module, which can facilitate the connection of the battery modules. At the same time, the length of the module can be adjusted according to actual needs, thereby increasing the design freedom of the length of the battery module. In addition, since a single battery module needs to be provided with corresponding components, such as high-voltage connecting copper bars and wiring harnesses, connecting adjacent battery modules can reduce the number of components to be provided, thereby reducing the volume of multiple battery modules, thereby increasing the energy density of the expandable module 1000. Furthermore, the weight reduction portion can avoid the partition beam 600, thereby facilitating the connection of the connecting plate 100. At the same time, it can also prevent the connecting plate 100 from affecting the internal structure of the expandable module 1000, thereby increasing the design freedom of the expandable module 1000.

[0041] According to the connecting plate 100 of the embodiment of the utility model, a first connecting portion 11 and a second connecting portion 12 are provided, so that adjacent battery modules are formed into an integral long module, thereby facilitating the connection of the battery modules and increasing the design freedom of the battery module length. At the same time, the volume of multiple battery modules can be reduced and the energy density of the expandable module 1000 can be improved.

[0042] According to some embodiments of the present invention, referring to Figure 6 and Figure 7 The connecting plate 100 includes a first connecting member 10 and a second connecting member 20, wherein the first connecting member 10 is connected to both sides of the second connecting member 20 (eg Figure 6 The first connection part 11 is formed on one of the two first connection parts 10, and the second connection part 12 is formed on the other of the two first connection parts 10. Thus, the second connection part 20 is connected with the two first connection parts 10, so that the connection plate 100 forms a whole, thereby ensuring the strength of the connection plate 100. At the same time, this structural arrangement is reasonable, which facilitates the connection of the connection plate 100 with adjacent battery modules.

[0043] For example, Figure 6 and Figure 7 As shown, two first connecting members 10 are provided, and the two first connecting members 10 are arranged on the left and right sides of the second connecting member 20, the first connecting portion 11 is formed on the left first connecting member 10, and the second connecting portion 12 is formed on the right first connecting member 10.

[0044] According to some embodiments of the present invention, referring to Figure 6 and Figure 7 The first connection portion 11 and the second connection portion 12 are both formed as limiting grooves. Thus, the limiting grooves can facilitate the fixing of the battery module, thereby facilitating the connection of adjacent battery modules.

[0045] According to some optional embodiments of the present invention, referring to Figure 6 and Figure 7 At least one limiting groove is formed on the surface of the first connecting member 10 facing away from the battery module, and a convex strip 13 is provided at one end of the limiting groove. Thus, the convex strip 13 can increase the stability of the connection between the connecting plate 100 and the battery module, and can effectively prevent the battery module from separating from the connecting plate 100.

[0046] For example, Figure 6 and Figure 7 As shown, the convex strip 13 on the right side surface of the left first connecting member 10 extends to the right, and the convex strip 13 on the left side surface of the right first connecting member 10 extends to the left.

[0047] According to some embodiments of the present invention, referring to Figure 6 and Figure 7 The second connecting member 20 is in the shape of a straight line, or in the shape of a cross, and the second connecting member 20 is along the width direction of the battery module (such as Figure 6 When the second connecting member 20 is in the shape of a "X", the second connecting member 20 comprises: a first connecting segment 21, a second connecting segment 22 and a third connecting segment 23. The first connecting segment 21 extends in the horizontal direction; the second connecting segment 22 extends in the vertical direction, and the second connecting segment 22 is connected to the first connecting segment 21 in the width direction (such as Figure 6 The third connecting section 23 extends in the horizontal direction, and the third connecting section 23 is connected to the end of the second connecting section 22 away from the first connecting section 21 (as shown in the left and right directions of the first connecting section 21); Figure 6 The lower end of the second connecting section 22 shown in the figure), the end of the third connecting section 23 close to the battery module is connected to the first connecting member 10.

[0048] In this way, the second connector 20 and the first connector 10 form an elastically deformable structure. When the expansion force of the battery module is large, the battery module can compress the first connector 10 toward the second connector 20 to increase the expansion space of the battery module, thereby increasing the service life of the battery module. At the same time, the first connecting segment 21, the second connecting segment 22 and the third connecting segment 23 can cooperate to connect the two first connectors 10, so that the connecting plate 100 can form a whole. This connection form can ensure the connection strength of the second connector 20 connecting the first connector 10, thereby preventing the connecting plate 100 from being damaged. In addition, this structural arrangement is reasonable, thereby ensuring the structural strength of the second connector 20 and effectively preventing the second connector 20 from being damaged.

[0049] For example, Figure 6 and Figure 7 As shown, the second connecting member 20 extends in the front-to-back direction, the first connecting section 21 is horizontally arranged in the left-to-right direction, the second connecting section 22 is vertically arranged in the up-down direction, the upper ends of the two second connecting sections 22 are respectively connected to the left and right ends of the first connecting section 21, the first connecting section 21 is horizontally arranged in the left-to-right direction, two third connecting sections 23 are arranged, the left end of the third connecting section 23 on the left is connected to the first connecting member 10, the right end of the third connecting section 23 on the left is connected to the lower end of the second connecting section 22, the right end of the third connecting section 23 on the right is connected to the first connecting member 10, and the left end of the third connecting section 23 on the right is connected to the lower end of the second connecting section 22.

[0050] According to some optional embodiments of the present invention, referring to Figure 6 and Figure 7The weight-reducing portion is formed as an avoidance groove 24, and the first connecting section 21 and the two second connecting sections 22 define the avoidance groove 24. Therefore, there is no need to additionally set the avoidance groove 24, thereby reducing the processing steps and reducing the production cost.

[0051] For example, Figure 6 and Figure 7 As shown, the first connecting section 21 and the two second connecting sections 22 define a U-shaped avoidance groove 24 with an opening facing downward, and the upper end of the partition beam 600 is clamped in the avoidance groove 24 .

[0052] According to some embodiments of the present invention, referring to Figure 6 and Figure 7 The third connecting section 23 is formed with a through hole 231, and the through hole 231 penetrates the third connecting section 23 in the extension direction of the second connecting member 20. Therefore, the through hole 231 can reduce the weight of the third connecting section 23, thereby reducing the weight of the connecting plate 100, and further facilitating the installation and removal of the connecting plate 100.

[0053] For example, Figure 6 and Figure 7 As shown, a rectangular through hole 231 is formed on the third connecting section 23 , and the through hole 231 penetrates the third connecting section 23 along the front-to-back direction.

[0054] According to some embodiments of the present invention, referring to Figure 6 The first connecting section 21 is formed with a mounting hole 211, and the mounting hole 211 is formed in the thickness direction of the first connecting section 21 (such as Figure 6 The mounting hole 211 penetrates the first connecting section 21 in the vertical direction of the first connecting section 21 shown in FIG. Thus, the mounting hole 211 can fix the connecting plate 100 and the partition beam 600, thereby preventing the connecting plate 100 from being separated from the partition beam 600, and further preventing the battery module from being separated from the box.

[0055] For example, Figure 6 As shown, the mounting hole 211 penetrates the first connecting section 21 along the up-down direction, a plurality of mounting holes 211 are provided, and the plurality of mounting holes 211 are arranged at intervals along the front-back direction on the first connecting section 21 .

[0056] Furthermore, if Figure 6 As shown, the connecting plate 100 is provided with a lifting hole (not shown in the figure), and the lifting hole can facilitate the lifting operation of the connecting plate 100, thereby facilitating the lifting of the battery module. At the same time, lifting the connecting plates 100 on both sides of the battery module can make the battery module evenly stressed, thereby reducing the deformation of the battery module.

[0057] According to the expandable module 1000 of the second aspect of the present invention, refer to Figure 1 and Figure 2, including: at least one connecting plate 100 of the first aspect of this embodiment and a plurality of battery modules, that is, the expandable module 1000 may include one, two or three or more connecting plates 100, each connecting plate 100 being located between two adjacent battery modules. Figure 1 and Figure 2 As shown, a plurality of battery cells 200 are stacked in the left-right direction to form a battery module, and a connecting plate 100 is provided between adjacent battery modules.

[0058] According to the expandable module 1000 of the embodiment of the utility model, by setting the connecting plate 100 of the above-mentioned first aspect embodiment, setting the first connecting part 11 and the second connecting part 12, adjacent battery modules are formed into an integral long module, thereby facilitating the connection of the battery modules and increasing the design freedom of the battery module length. At the same time, the volume of multiple battery modules can be reduced and the energy density of the expandable module 1000 can be improved.

[0059] Furthermore, if Figure 1 and Figure 2 As shown, the expandable module 1000 includes: a box body 700, the box body 700 has a receiving cavity, and the battery module is arranged in the receiving cavity. Therefore, the box body 700 can protect the battery module, thereby preventing the battery module from being damaged.

[0060] Furthermore, if Figure 1 and Figure 5 As shown, a heat insulating pad 400 is provided between the first connector 10 of the connecting plate 100 and the battery module, so as to prevent the heat emitted by the battery module from being transferred to the connecting plate 100, thereby effectively preventing the connecting plate 100 from being deformed by heat.

[0061] According to some embodiments of the present invention, referring to Figure 1 and Figure 5 , buffer pads are provided between adjacent battery cells 200. When the expandable module 1000 shakes, the buffer pads can provide buffering for adjacent battery cells 200 to prevent adjacent battery cells 200 from colliding with each other and being damaged.

[0062] According to some optional embodiments of the present invention, referring to Figure 1 and Figure 5 The expandable module 1000 may further include: an annular fixing belt 300, the annular fixing belt 300 passes through the first connecting portion 11 and binds and fixes the connecting plate 100 and the corresponding battery module, and / or the annular fixing belt 300 passes through the second connecting portion 12 and binds and fixes the connecting plate 100 and the corresponding battery module.

[0063] In this way, the annular fixing belt 300 can fix multiple battery cells 200, thereby effectively preventing a battery cell 200 from being separated from other battery cells 200, thereby ensuring the stability of the battery module. At the same time, the annular fixing belt 300 can provide a connection position for the connecting plate 100, facilitating the connection between the connecting plate 100 and the adjacent battery module, thereby ensuring the connection strength between the connecting plate 100 and the adjacent battery module.

[0064] For example, Figure 1 and Figure 5 As shown, the annular fixing belt 300 is formed in a ring shape and is wound around the circumference of the battery module. In the middle position of the adjacent battery modules, the annular fixing belt 300 of the left battery module binds the first connecting member 10 on the left side inside the annular fixing belt 300, and the annular fixing belt 300 of the right battery module binds the first connecting member 10 on the right side inside the annular fixing belt 300.

[0065] Furthermore, if Figure 1 and Figure 5 As shown, there are two annular fixing belts 300, which are arranged at intervals along the upper and lower sides. Thus, the strength of the annular fixing belt 300 in fixing the battery module can be ensured, and a battery cell 200 can be effectively prevented from being separated from other battery cells 200.

[0066] For example, Figure 1 and Figure 5 As shown, two annular fixing belts 300 are provided on the left battery module, the upper annular fixing belt 300 is fixed in the limiting groove on the upper side of the first connecting member 10 on the left, and the lower annular fixing belt 300 is fixed in the limiting groove on the lower side of the first connecting member 10 on the left; and two annular fixing belts 300 are provided on the right battery module, the upper annular fixing belt 300 is fixed in the limiting groove on the upper side of the first connecting member 10 on the right, and the lower annular fixing belt 300 is fixed in the limiting groove on the lower side of the first connecting member 10 on the right.

[0067] Preferably, the upper annular fixing belt 300 is a steel belt, which can ensure the strength of the upper annular fixing belt 300 in fixing the battery module, and at the same time, can prevent the annular fixing belt 300 from breaking. Furthermore, the lower annular fixing belt 300 is made of plastic. Since the lower end of the battery module is adhesively connected to the box body, the battery module can be fixed using the annular fixing belt 300 made of plastic, thereby reducing the production cost of the expandable module 1000.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0070] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A connecting plate for connecting any two adjacent battery modules, characterized in that: The connecting plate is formed with a first connecting portion and a second connecting portion arranged at intervals, the first connecting portion is connected to one of the two adjacent battery modules, the second connecting portion is connected to the other of the two adjacent battery modules, and a weight reduction portion is formed between the first connecting portion and the second connecting portion.

2. The connecting plate according to claim 1, characterized in that: The connecting plate includes a first connecting member and a second connecting member, the first connecting member is connected to both sides of the second connecting member, the first connecting portion is formed on one of the two first connecting members, and the second connecting portion is formed on the other of the two first connecting members.

3. The connecting plate according to claim 2, characterized in that: The first connection portion and the second connection portion are both formed as limiting grooves.

4. The connecting plate according to claim 3, characterized in that: At least one limiting groove is formed on a surface of a side of the first connecting member away from the battery module, and a convex strip is provided at one end of the limiting groove.

5. The connecting plate according to claim 2, characterized in that: The second connecting member is in the shape of a straight line, or in the shape of a letter "X", and the second connecting member extends along the width direction of the battery module. When the second connecting member is in the shape of a letter "X", the second connecting member includes: a first connecting section, the first connecting section extending in a horizontal direction; a second connecting section, the second connecting section extending in a vertical direction, and the second connecting section connected to two ends of the first connecting section in a width direction; The third connecting section extends in a horizontal direction, is connected to an end of the second connecting section away from the first connecting section, and an end of the third connecting section close to the battery module is connected to the first connecting member.

6. The connecting plate according to claim 5, characterized in that: The weight-reducing portion is formed as an avoidance groove, and the first connecting section and the two second connecting sections define the avoidance groove.

7. The connecting plate according to claim 5, characterized in that: The third connecting section is formed with a through hole, and the through hole penetrates the third connecting section in the extending direction of the second connecting member.

8. The connecting plate according to claim 5, characterized in that: The first connecting section is formed with a mounting hole, and the mounting hole penetrates the first connecting section in a thickness direction of the first connecting section.

9. An expandable module, characterized in that: include: At least one connecting plate according to any one of claims 1 to 8 and a plurality of battery modules, each of the connecting plates being located between two adjacent battery modules.

10. The expandable module according to claim 9, characterized in that: Also includes: An annular fixing belt, which passes through the first connecting portion and binds and fixes the connecting plate and the corresponding battery module, and / or the annular fixing belt passes through the second connecting portion and binds and fixes the connecting plate and the corresponding battery module.

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