CN211428246U - Double-layer battery module - Google Patents

Abstract

The application provides a double-deck battery module, including base, first layer battery module, second floor battery module, support, first bolt and second bolt, the both ends of first layer battery module are equipped with the support respectively, and the both ends of second floor battery module support on corresponding support. The application provides a double-deck battery module, through set up first perforation and second perforation on the support, set up first screw hole and second screw hole on the base, set up first through-hole and second through-hole on first layer battery module, set up the third through-hole on second layer battery module, thereby can fix support and first layer battery module on the base through first bolt, guarantee first layer battery module, the joint strength of support and base, rethread second bolt is with second layer battery module, support and first layer battery module are fixed on the base, and then fix the stack of second layer battery module on first layer battery module, guarantee the structural strength of double-deck battery module.

Description

Double-layer battery module

Technical Field

The utility model belongs to the technical field of the battery, more specifically say, relate to a double-deck battery module.

Background

In order to improve the overall space utilization rate and energy density of the power battery, the battery modules are often required to be stacked to form a double-layer structure. The current double-layer battery module generally uses bolts to penetrate through the two-layer battery module and the bracket between the two-layer battery module so as to fix the two-layer battery module into a whole. However, the length of the bolt used in the structure is large, so that the structural strength of the double-layer battery module is poor.

Disclosure of Invention

An object of the embodiment of the present application is to provide a double-layer battery module to solve the problem of poor structural strength of the double-layer battery module existing in the related art.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions: the double-layer battery module comprises a base, a first layer of battery module arranged on the base and a second layer of battery module superposed on the first layer of battery module, wherein two ends of the first layer of battery module are respectively provided with a support, two ends of the second layer of battery module are supported on the supports correspondingly, two ends of the first layer of battery module are provided with a plurality of first through holes and a plurality of second through holes, two ends of the second layer of battery module are provided with third through holes corresponding to the positions of the second through holes, each support is provided with a first through hole corresponding to the position of each first through hole, each support is provided with a second through hole corresponding to the position of each second through hole, the base is provided with a first threaded hole corresponding to the position of each first through hole, the base is provided with a second threaded hole corresponding to the position of each second through hole, the double-layer battery module further comprises a first bolt respectively penetrating through each first through hole and each corresponding first through hole and arranged in the corresponding first threaded hole and a first bolt respectively penetrating each third through hole The second bolt is arranged in the corresponding second threaded hole; copper bars are led out from at least one end of the first layer of battery module, and openings for avoiding the copper bars are formed in the support.

In one embodiment, the first layer of battery modules is provided with insulation boxes corresponding to the positions of the copper bars, each copper bar extends into the corresponding insulation box, and each insulation box extends into the corresponding opening.

In one embodiment, each bracket comprises a support plate, a plurality of support legs connected to the bottom of the support plate, and a plurality of support blocks connected to the bottom of the support plate, wherein an opening is formed in a space between each support leg and an adjacent support block, a first through hole is formed in each support leg, and a second through hole is formed in each support block.

In one embodiment, the first through hole is formed in each end of the first layer of battery modules, the second through hole is formed in the middle of each end of the first layer of battery modules, the support plate is provided with support legs at two ends, and the support block is arranged between at least two support legs.

In one embodiment, each support leg is connected with the support plate through a connecting plate, the upper end of each connecting plate is connected with the support plate, and the lower end of each connecting plate is connected with the corresponding support leg; each connecting plate inclines each extension board to set up, or the connecting plate is perpendicular to the extension board setting.

In one embodiment, the legs, the connecting plates, the braces and the support plate are integrally formed.

In one embodiment, each of the first through holes includes a first section through which the shank of the first bolt passes and a second section for receiving the nut of the first bolt, the second section having an inner diameter greater than that of the first section, the second section being connected to the top of the first section.

In one embodiment, the first layer of battery modules is provided with receiving grooves at two ends thereof, and each bracket is mounted in the corresponding receiving groove.

In one embodiment, the depth of each receiving groove is less than the height of the bracket.

In one embodiment, the first-layer battery module has the same structure as the second-layer battery module.

One or more technical solutions in the embodiments of the present application have at least one of the following technical effects:

the embodiment of the application provides a double-deck battery module, through set up first perforation and second perforation on the support, set up first screw hole and second screw hole on the base, set up first through-hole and second through-hole on first layer battery module, set up the third through-hole on second floor battery module, thereby can fix support and first layer battery module on the base through first bolt, guarantee first layer battery module, the joint strength of support and base, rethread second bolt is with second layer battery module, support and first layer battery module are fixed on the base, and then fix the stack of second layer battery module on first layer battery module, guarantee the structural strength of double-deck battery module.

The double-deck battery module of this application embodiment through set up the opening on the support, can conveniently draw the copper bar of first layer battery module out to facilitate the use.

The double-deck battery module of this application embodiment sets up the structure of first layer battery module the same with the structure of second floor battery module to convenient modularization preparation, reduce cost, also easy to assemble.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an exploded schematic view of a double-layer battery module according to an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a first bracket provided in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a second bracket provided in an embodiment of the present application.

Fig. 4 is a schematic structural diagram of a third bracket provided in an embodiment of the present application.

Wherein, in the drawings, the reference numerals are mainly as follows:

100-a double-layer battery module; 11-a base; 111-a first threaded hole; 112-a second threaded hole; 12-a first layer of battery modules; 121-a receiving groove; 122-a first via; 123-a second via; 124-copper bar; 1241-an internal threaded hole; 125-an insulating case; 126-screw; 13-a second layer of battery modules; 131-a third via; 14-a first bolt; 15-second bolt

20-a scaffold; 201-opening; 202-a containing space; 21-a support plate; 22-a foot; 221-a first perforation; 2211-first section; 2212-second segment; 23-a branch block; 231-second perforations; 24-connecting plate.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.

In the description of the present application, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to fig. 1 and 2, a double-layer battery module 100 provided in the present application will now be described. The double-layer battery module 100 comprises a base 11, a first layer of battery modules 12, a second layer of battery modules 13, a support 20, a first bolt 14 and a second bolt 15, wherein the first layer of battery modules 12 are installed on the base 11, and the second layer of battery modules 13 are overlapped on the first layer of battery modules 12 to form a double-layer structure. The two ends of the first layer of battery modules 12 are respectively provided with a bracket 20, the two ends of the second layer of battery modules 13 are supported on the corresponding brackets 20, and the second layer of battery modules 13 are supported on the first layer of battery modules 12 through the brackets 20. A plurality of first through holes 122 and a plurality of second through holes 123 are formed at two ends of the first layer battery module 12, third through holes 131 are formed at two ends of the second layer battery module 13 corresponding to the positions of the second through holes 123, first through holes 221 are formed at positions on each support 20 corresponding to the positions of the first through holes 122, second through holes 231 are formed at positions on each support 20 corresponding to the positions of the second through holes 123, first threaded holes 111 are formed at positions on the base 11 corresponding to the positions of the first through holes 122, and second threaded holes 112 are formed at positions on the base 11 corresponding to the positions of the second through holes 123; the number of the first through holes 122 corresponds to the number of the first bolts 14, and each first bolt 14 sequentially passes through the corresponding first through hole 221 and the corresponding first through hole 122 and is installed in the corresponding first threaded hole 111, so that the bracket 20 and the first layer of battery modules 12 are fixed on the base 11, and the connection strength between the first layer of battery modules 12 and the base 11 is ensured. The number of the second through holes 123 corresponds to the number of the second bolts 15, and each second bolt 15 sequentially passes through the corresponding third through hole 131, the corresponding second through hole 123 and the corresponding second through hole 231 and is installed in the corresponding second threaded hole 112, so that the second layer of battery modules 13, the support 20 and the first layer of battery modules 12 are fixed on the base 11 in an overlapping manner, the second layer of battery modules 13 are stably installed, and the structural strength of the formed double-layer battery modules 100 is further ensured.

In addition, during the assembly, the bracket 20 and the first layer of battery modules 12 can be fixed on the base 11 through the first bolts 14, and then the second layer of battery modules 13 can be installed, so that the assembly is convenient.

The double-layer battery module 100 of the embodiment of the application, through set up first perforation 221 and second perforation 231 on support 20, set up first screw hole 111 and second screw hole 112 on base 11, set up first through-hole 122 and second through-hole 123 on first layer battery module 12, set up third through-hole 131 on second layer battery module 13, thereby can fix support 20 and first layer battery module 12 on base 11 through first bolt 14, guarantee first layer battery module 12, the joint strength of support 20 and base 11, rethread second bolt 15 fixes second layer battery module 13, support 20 and first layer battery module 12 on base 11, and then fix second layer battery module 13 stack on first layer battery module 12, guarantee double-layer battery module 100's structural strength.

In an embodiment, referring to fig. 1, the specific structure of the base 11 may be set as required, for example, the base 11 may be a box structure or a plate structure.

In one embodiment, referring to fig. 1 and fig. 2, a copper bar 124 is led out from at least one end of the first layer of battery modules 12, an opening 201 is formed in the bracket 20 to avoid each copper bar 124, the opening 201 is formed in the bracket 20, and when the bracket 20 is installed at the end of the first layer of battery modules 12, the copper bars 124 on the first layer of battery modules 12 can extend into the opening 201, so that the first layer of battery modules 12 can be electrically connected.

In one embodiment, referring to fig. 1 and 2, each copper bar 124 is provided with an internal threaded hole 1241 for facilitating the connection of an external wire terminal through a screw 126, so as to facilitate the use of the first layer of battery modules 12.

In one embodiment, referring to fig. 1 and fig. 2, the insulation boxes 125 are disposed on the first layer of battery modules 12 corresponding to the copper bars 124, each copper bar 124 extends into the corresponding insulation box 125, and each insulation box 125 extends into the corresponding opening 201. The insulating box 125 is arranged, so that the corresponding copper bar 124 can be protected in an insulating manner, the copper bar 124 is prevented from being in contact with the bracket 20, short circuit is avoided, and safety is improved. In addition, the insulating box 125 is provided, so that when the insulating box 125 extends into the corresponding opening 201 of the bracket 20, the bracket 20 can be positioned, and the bracket 20 can be better fixed.

In one embodiment, referring to fig. 1 and 2, the insulating case 125 may be a plastic case, a wood case, or the like.

In one embodiment, referring to fig. 1 and 2, the first-layer battery modules 12 are respectively provided with receiving grooves 121 at two ends thereof, and each of the brackets 20 is installed in the corresponding receiving groove 121. The two ends of the first layer of battery module 12 are respectively provided with the accommodating groove 121, so that the supports 20 can be conveniently positioned, the height of the double-layer battery module 100 can be reduced, the size of the double-layer battery module 100 is reduced, and the space utilization rate and the energy density are improved.

In one embodiment, referring to fig. 1 and 2, the depth of each accommodating groove 121 is smaller than the height of the bracket 20, so that the top of each bracket 20 protrudes out of the first layer of battery modules 12, the second layer of battery modules 13 are supported by the bracket 20, and the first layer of battery modules 12 and the second layer of battery modules 13 are spaced apart from each other to facilitate heat dissipation.

In one embodiment, referring to fig. 1 and 2, the first layer battery module 12 has the same structure as the second layer battery module 13, so as to facilitate the modular manufacturing, the industrial mass production, the cost reduction, and the assembly of the double-layer battery module 100.

In one embodiment, referring to fig. 1 and 2, each of the brackets 20 includes a support plate 21, a plurality of legs 22 and a plurality of support blocks 23, each leg 22 is connected to the bottom of the support plate 21, each support block 23 is connected to the bottom of the support plate 21, the space between each leg 22 and the adjacent support block 23 forms the opening 201, each leg 22 is provided with a first through hole 221, each support block 23 is provided with a second through hole 231, so that the support plate 21 is supported by the legs 22 and the support blocks 23, and the second layer of battery modules 13 is supported by the support plate 21. The legs 22 and the support blocks 23 are arranged at the bottom of the support plate 21, and the first through holes 221 and the second through holes 231 are arranged in the corresponding legs 22 and the corresponding support blocks 23, so that the good strength of the support 20 can be ensured.

In one embodiment, referring to fig. 1 and fig. 2, two sides of each end of the first layer of battery modules 12 are respectively provided with a first through hole 122, a middle of each end of the first layer of battery modules 12 is respectively provided with a second through hole 123, a middle of each end of the corresponding second layer of battery modules 13 is respectively and correspondingly provided with a third through hole 131, two ends of the corresponding support plate 21 are respectively provided with a support leg 22, and a middle of the support plate 21 is provided with a support block 23. In some embodiments, a greater number of first through holes 122 and second through holes 123 may be formed at each end of the first layer of battery modules 12, and a greater number of first bolts 14 and second bolts 15 are used to fix the first layer of battery modules 12, the second layer of battery modules 13, and the bracket 20 to the base 11, so as to improve the structural strength of the manufactured double-layer battery module 100.

In this embodiment, two second through holes 123 are respectively formed in the middle of each end of the first layer of battery modules 12. In other embodiments, three, four, etc. second through holes 123 may be provided in the middle of each end of the first layer of battery modules 12.

In one embodiment, referring to fig. 1 and 2, each leg 22 is connected to a support plate 21 by a connecting plate 24, the upper end of each connecting plate 24 is connected to the support plate 21, the lower end of each connecting plate 24 is connected to the corresponding leg 22, and each connecting plate 24 is disposed obliquely to each support plate 21. The connecting plates 24 are arranged so that the support legs 22 are connected with the support plate 21, and the accommodating space 202 is formed between each connecting plate 24 and the top of the corresponding support leg 22, so that when the first bolt 14 is installed, the nut of the first bolt 14 can be placed in the accommodating space 202, the installation is convenient, meanwhile, the nut of the first bolt 14 can be prevented from abutting against the second layer of battery modules 13, and the support plate 21 is ensured to well support the second layer of battery modules 13.

In one embodiment, referring to fig. 1 and 2, the legs 22, the connecting plates 24, the supporting blocks 23 and the supporting plate 21 are integrally formed to ensure the connection strength of the legs 22, the connecting plates 24, the supporting blocks 23 and the supporting plate 21, thereby ensuring the good structural strength of the bracket 20.

In one embodiment, referring to FIG. 3, each leg 22 is connected to the support plate 21 by a connecting plate 24, each connecting plate 24 is connected to the support plate 21 at an upper end thereof, each connecting plate 24 is connected to a corresponding leg 22 at a lower end thereof, and the connecting plates 24 are arranged perpendicular to the support plate 21. The connecting plates 24 are arranged perpendicular to the support plate 21 for easy manufacturing, and a receiving space 202 is formed between each connecting plate 24 and the top of the corresponding leg 22 for receiving the nut of the first bolt 14. Meanwhile, the structure can increase the length of the support plate 21, so that the contact area between the support plate 21 and the second layer of battery modules 13 is increased, and the second layer of battery modules 13 are supported more stably.

In one embodiment, referring to fig. 4, in each rack 20: the two ends of the support plate 21 respectively extend to the corresponding support legs 22, namely, each support leg 22 is directly arranged on the bottom surface of the support plate 21, the structure is convenient to process and manufacture, and meanwhile, the support plate 21 can be made longer so as to increase the contact area with the second layer of battery modules 13 and further support the second layer of battery modules 13 more stably.

In one embodiment, referring to fig. 4, the legs 22, the supporting blocks 23 and the supporting plate 21 are integrally formed to ensure the connection strength of the legs 22, the supporting blocks 23 and the supporting plate 21, thereby ensuring the good structural strength of the bracket 20.

In one embodiment, referring to fig. 4, each first through hole 221 includes a first section 2211 for passing the screw 142 of the first bolt 14 and a second section 2212 for receiving the nut 141 of the first bolt 14, the inner diameter of the second section 2212 is larger than that of the first section 2211, and the second section 2212 is connected to the top of the first section 2211. When the first bolt 14 is installed, the nut 141 of the first bolt 14 can be placed in the second section 2212 of the first through hole 221, so that the installation is facilitated, and meanwhile, the nut 141 of the first bolt 14 can be prevented from abutting against the second layer battery module 13, so that the support plate 21 can be ensured to well support the second layer battery module 13.

The double-layer battery module 100 of the embodiment of the application is convenient to assemble, and the structural strength of the double-layer battery module 100 can be well guaranteed. In addition, the copper bars 124 of the first layer of battery modules 12 can be led out conveniently, and the use is more convenient.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. Double-deck battery module, including the base, install in first layer battery module on the base with superpose in second layer battery module on the first layer battery module, its characterized in that: the double-layer battery module comprises a base, a plurality of first through holes, a plurality of second through holes, a plurality of third through holes, a plurality of first threaded holes, a plurality of second threaded holes, a plurality of bolts and a plurality of second threaded holes, wherein the two ends of the first layer battery module are respectively provided with a support, the two ends of the second layer battery module are supported on the corresponding support, the two ends of the first layer battery module are provided with the plurality of first through holes and the plurality of second through holes, the two ends of the second layer battery module are provided with the third through holes corresponding to the second through holes, the positions of the supports corresponding to the first through holes are provided with the first through holes, the positions of the supports corresponding to the second through holes are provided with the second through holes, the positions of the bases corresponding to the first through holes are provided with the first threaded holes, the positions of the bases, A second bolt corresponding to the second through hole, corresponding to the second through hole and mounted in the corresponding second threaded hole; copper bars are led out from at least one end of the first layer of battery module, and openings for avoiding the copper bars are formed in the support.

2. The double-layer battery module according to claim 1, wherein: and insulation boxes are arranged on the first layer of battery module corresponding to the positions of the copper bars, the copper bars extend into the corresponding insulation boxes, and the insulation boxes extend into the corresponding openings.

3. The double-layer battery module according to claim 1, wherein: each support comprises a support plate, a plurality of support legs connected to the bottom of the support plate and a plurality of support blocks connected to the bottom of the support plate, the space between each support leg and the adjacent support block forms the opening, each support leg is provided with the first through hole, and each support block is provided with the second through hole.

4. The double-layer battery module according to claim 3, wherein: the two sides of each end of the first layer of battery module are respectively provided with the first through hole, the middle of each end of the first layer of battery module is respectively provided with the second through hole, the two ends of the support plate are respectively provided with the support legs, and at least two support blocks are arranged between the at least two support legs.

5. The double-layer battery module according to claim 4, wherein: each support leg is connected with the support plate through a connecting plate, the upper end of each connecting plate is connected with the support plate, and the lower end of each connecting plate is connected with the corresponding support leg; each connecting plate is arranged in a manner of inclining to each support plate, or the connecting plates are arranged perpendicular to the support plates.

6. The double-layer battery module according to claim 5, wherein: each support leg, each connecting plate, each support block and the support plate are integrally formed.

7. The double-layer battery module according to claim 3, wherein: each first through hole comprises a first section for a screw rod of the first bolt to pass through and a second section for accommodating a nut of the first bolt, the inner diameter of the second section is larger than that of the first section, and the second section is connected with the top of the first section.

8. The bi-layer battery module of any one of claims 1-7, wherein: the two ends of the first layer of battery module are respectively provided with a containing groove, and each bracket is arranged in the corresponding containing groove.

9. The double-layer battery module according to claim 8, wherein: the depth of each accommodating groove is smaller than the height of the support.

10. The bi-layer battery module of any one of claims 1-7, wherein: the structure of the first layer of battery module is the same as that of the second layer of battery module.

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