CN218827560U - Fixed connection assembly for stacking energy storage boxes, energy storage box and energy storage box group - Google Patents

Abstract

The utility model discloses a fixed coupling assembling, energy storage box and energy storage box group that energy storage box piles up, the fixed coupling assembling that energy storage box piles up includes: the first connecting piece is used for being fixed on the upper surface of the energy storage box and provided with a first connecting part, and the first connecting part is one of a bulge and a groove; the second connecting piece, the second connecting piece is used for being fixed in the lower surface of energy storage box, be provided with the second connecting portion on the second connecting piece, the second connecting portion is another kind in arch and the recess, the recess with the arch is mutually supported in order to be used for realizing piling up of energy storage box. Wherein, can realize fixed connection through first connecting piece and second connecting piece when two adjacent energy storage box pile up to realize connecting through arch and recess between first connecting piece and the second connecting piece, make piling up of energy storage box easy operation, quick and convenient like this, and the stability of the energy storage box group after piling up is higher.

Description

Fixed connection assembly for stacking energy storage boxes, energy storage box and energy storage box group

Technical Field

The utility model belongs to the technical field of the energy storage box technique and specifically relates to a fixed coupling assembling, energy storage box and energy storage box group that energy storage box piles up are related to.

Background

Lithium batteries have been widely used because of their advantages of light weight, large capacity, no memory effect, etc. The rectangular lithium battery is usually applied to the new energy automobile as a power battery, and before the lithium battery is put into use, the plurality of lithium batteries need to be connected in series or in parallel according to user requirements so as to meet the requirements of voltage and electric capacity required by the electric automobile.

Different battery boxes are designed according to the specific conditions of various electric automobile manufacturers. The battery box is suitable for designing and producing special battery boxes for electric automobile manufacturers with large batch and relatively fixed requirements on voltage and capacitance of lithium battery packs. For scattered users with small batch size and various requirements on voltage and capacitance of the lithium battery pack, the corresponding battery box is designed and produced, so that the production cost is high, the manufacturing period is long, overstocking is easy, and the production management is not convenient, thereby troubling enterprises for a long time.

In the correlation technique, the connection between two adjacent boxes is fixed through external parts such as bolts, so that the forming of the boxes is complicated, the production cost of the boxes is improved, and the connection stability between the boxes is poor, so that the boxes are easy to shake.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a fixed connection subassembly that energy storage box piled up can realize fixed connection through first connecting piece and second connecting piece when two adjacent energy storage boxes pile up, makes piling up of energy storage box easy operation, quick and convenient like this.

The utility model also provides an energy storage box.

The utility model also provides an energy storage box group.

According to the utility model discloses fixed connection subassembly that energy storage box piled up of first aspect embodiment, include: the first connecting piece is used for being fixed on the upper surface of the energy storage box and provided with a first connecting part, and the first connecting part is one of a bulge and a groove; the second connecting piece, the second connecting piece is used for being fixed in the lower surface of energy storage box, be provided with the second connecting portion on the second connecting piece, the second connecting portion is another kind in arch and the recess, the recess with the arch is mutually supported in order to be used for realizing piling up of energy storage box.

According to the utility model discloses fixed connection subassembly that energy storage box piled up can realize fixed connection through first connecting piece and second connecting piece when two adjacent energy storage boxes pile up to realize connecting through arch and recess between first connecting piece and the second connecting piece, make piling up of energy storage box easy operation, quick and convenient like this, and the stability of the energy storage box group after piling up is higher.

According to the utility model discloses a some embodiments, fixed connection components still include the fastener, still be provided with first mounting hole on the arch, be provided with the second mounting hole on the lateral wall of recess, the fastener is used for working as the recess with when protruding mutually supporting, pass behind the second mounting hole with first mounting hole fixed connection.

According to the utility model discloses a some embodiments, be provided with on the outer peripheral face of second connecting piece and dodge the groove, part the fastener cooperation is in dodge the inslot.

According to the utility model discloses a some embodiments, protruding with clearance fit between the recess, protruding with clearance between the recess is h1, and h1 satisfies the relational expression: h1 is more than 0mm and less than or equal to 1mm.

According to some embodiments of the present invention, in the convex axial direction, the convex size of the protrusion is a, and a satisfies the relation: a is more than 10mm.

According to the utility model discloses a some embodiments, be equipped with fretwork space in the arch, the volume in fretwork space with the ratio of bellied volume is v1, and v1 satisfies the relational expression: v1 < 0.25.

According to some embodiments of the present invention, v1 satisfies the relation: v1 is more than 0.15 and less than 0.25.

According to some embodiments of the invention, the ratio of the volume of the recess and the volume of the first or second connecting piece is v2, v2 satisfying the relation: v2 > 0.2.

According to some embodiments of the present invention, v1 satisfies the relation: v2 is less than 0.3.

According to the utility model discloses a some embodiments, the area of the projection of arch on first connecting piece or second connecting piece is s1, the area of first connecting piece (11) or second connecting piece (12) upper surface is s2, and s1 and s2 satisfy the relational expression: s1/s2 is more than 0.2; and/or when the area of the projection of the first connecting part or the second connecting part on the second connecting part is s3, the area of the lower surface of the second connecting part is s4, and s3 satisfy the relation: s3/s4 > 0.25.

According to some embodiments of the invention, s1 and s2 satisfy the relation: s1/s2 is more than 0.3; and/or s3 and s3 satisfy the relation: s3/s4 > 0.35.

According to some embodiments of the invention, the first connecting piece is in the bottom of first connecting portion is provided with the supporting seat.

According to the utility model discloses energy storage box of second aspect embodiment includes: the energy storage box comprises a plurality of assembly assemblies and a fixed connecting assembly stacked by the energy storage boxes, wherein the plurality of assembly assemblies are connected with the first connecting piece and/or the second connecting piece.

According to some embodiments of the invention, the assembly component comprises: the rod body is connected with the first connecting piece and/or the second connecting piece, and the plate body is clamped between the rod bodies.

According to some embodiments of the present invention, a third connecting portion is provided on the rod body, a fourth connecting portion is provided on the first connecting member and the second connecting member, the rod body is disposed between two adjacent first connecting members, and the third connecting portion and the fourth connecting portion are fixedly connected; and/or the rod body is arranged between the two adjacent second connecting pieces, and the third connecting part is fixedly connected with the fourth connecting part.

According to some embodiments of the present invention, the third connecting portion is one of a protrusion and a groove, the fourth connecting portion is the other of a protrusion and a groove, and the groove and the protrusion are engaged with each other; and the protrusion is in clearance fit with the groove, the clearance between the protrusion and the groove is h2, and h2 satisfies the relation: h2 is more than 0mm and less than or equal to 1mm.

According to the utility model discloses a some embodiments, the fourth connecting portion are in the area of projection on first connecting piece or the second connecting piece is s5, the fourth connecting portion are in the area of the side at projection place on the first connecting piece or the second connecting piece is s6, and s5 and s6 satisfy the relational expression: s5/s6 is greater than 0.3.

According to the utility model discloses a some embodiments in bellied axial direction, protruding convex size is b, and b satisfies the relational expression: b is more than 10mm.

According to the utility model discloses a some embodiments, it is a plurality of plate body, a plurality of body of rod and fixed connection components are the integrated into one piece structure.

According to the utility model discloses energy storage box group of third aspect embodiment includes: the fixed connecting assembly is arranged between the energy storage boxes above and below.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

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

fig. 1 is a schematic structural diagram of an energy storage box group according to an embodiment of the present invention;

FIG. 2 is a partial schematic view A of FIG. 1;

FIG. 3 is a partial schematic view B of FIG. 1;

FIG. 4 is a partial schematic view C of FIG. 1;

fig. 5 is a schematic structural diagram of the connection between two adjacent energy storage boxes according to the embodiment of the present invention;

fig. 6 is a schematic connection diagram of a first connector and a second connector according to an embodiment of the present invention;

fig. 7 is a schematic view of the connection between the support base and the second connecting member according to the embodiment of the present invention;

fig. 8 is a schematic structural view of a second connector according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a rod body according to an embodiment of the present invention;

fig. 10 is an exploded view of an energy storage tank according to an embodiment of the present invention.

Reference numerals are as follows:

100. an energy storage tank;

10. fixing the connecting assembly; 11. a first connecting member; 111. a first connection portion; 112. a first mounting hole; 12. a second connecting member; 121. a second connecting portion; 122. a second mounting hole; 123. an avoidance groove; 13. a supporting seat; 14. a fourth connecting portion; 15. a third connecting member;

20. a rod body; 21. a third connecting portion; 30. a fastener; 40. a plate body.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

Referring to fig. 1-10, a fixed connection assembly 10 for stacking energy storage boxes 100 according to an embodiment of the present invention is described below, the present invention further provides an energy storage box 100 having the above fixed connection assembly 10, and the present invention further provides an energy storage box set having the above energy storage box 100.

The utility model discloses fixed connection assembly 10 that energy storage box 100 piled up, include: first connecting piece 11 and second connecting piece 12, first connecting piece 11 is used for fixing at the upper surface of energy-storing box 100, is provided with first connecting portion 111 on first connecting piece 11, and second connecting piece 12 is used for being fixed in the lower surface of energy-storing box 100, and second connecting piece 12 sets up in the top of first connecting piece 11, is provided with second connecting portion 121 on second connecting piece 12. So set up, fixed connection subassembly 10 includes first connecting piece 11 and second connecting piece 12, specifically, sets up first connecting piece 11 at the upside of energy storage box 100, sets up second connecting piece 12 at the downside of energy storage box 100, makes like this can realize fixed connection through first connecting piece 11 and connecting piece between two energy storage boxes 100 that pile up each other.

Specifically, the first connecting portion 111 is one of a projection and a groove, and the second connecting portion 121 is the other of a projection and a groove, which are fitted to each other for achieving stacking of the energy storage tanks 100. So set up, protruding and recess between first connecting piece 11 and the second connecting piece 12 realize being connected, and on the one hand, the cooperation of arch and recess is more convenient to make things convenient for piling up of energy storage box 100, on the other hand cooperation intensity between arch and the recess is higher, and the energy storage box 100 that piles up each other can not take place to topple.

Further, be provided with the direction inclined plane at bellied tip and at the opening part of recess, can make things convenient for the production of first connecting piece 11 and second connecting piece 12 on the one hand like this to reduce the production degree of difficulty of fixed connection subassembly 10, on the other hand makes things convenient for interconnect between first connecting piece 11 and the connecting piece, thereby the effectual assembly efficiency that two adjacent energy storage box 100 of promotion pile up.

And, still be provided with the fourth mounting hole on first connecting piece 11, make the hangers can fix on first connecting piece 11 through the fourth mounting hole like this to make things convenient for the hoist and mount and the cabinet combination of energy storage box 100.

The first connecting piece 11 and the second connecting piece 12 are thick and simple in structure, made of all metal, and the first connecting piece 11 and the second connecting piece 12 with high strength can be manufactured by machining, die casting, forging or other process modes.

From this, can realize fixed connection through first connecting piece 11 and second connecting piece 12 when two adjacent energy storage box 100 stack to realize connecting through arch and recess between first connecting piece 11 and the second connecting piece 12, make energy storage box 100's the simple operation of piling up like this, quick and convenient, and the stability of the energy storage box group after the pile is higher.

As shown in fig. 2, fig. 6 and fig. 8, the fixing and connecting assembly 10 further includes a fastener 30, a first mounting hole 112 is further disposed on the protrusion, a second mounting hole 122 is disposed on the sidewall of the groove, and the fastener 30 is fixedly connected to the first mounting hole 112 after passing through the second mounting hole 122. So configured, after the protrusion and the groove are engaged with each other, the fastening member 30 is fixed on the protrusion after passing through the groove when the groove and the protrusion are engaged with each other, so that the connection strength between the first connection member 11 and the second connection member 12 can be improved. The fastening member 30 may be a bolt, the first mounting hole 112 may be a bolt hole, and the second mounting hole 122 may be a bolt hole, that is, the bolt is threaded with the bolt hole after passing through the bolt hole, so that the connection strength between the fastening member 30 and the first and second connection members 11 and 12 is relatively high. Still alternatively, the fastener 30 may be a pin and the first and second mounting holes 112, 122 are perforations.

Further, as shown in fig. 5, an escape groove 123 is provided on the outer peripheral surface of the second connecting member 12, and part of the fastening member 30 is fitted in the escape groove 123. With the arrangement, when the fastener 30 is fixed on the first connecting piece 11 and the second connecting piece 12, the avoiding groove 123 is formed in the outer peripheral surface of the groove, so that the end part of the fastener 30 is matched in the avoiding groove 123, the integrity and the cleanliness of the stacked energy storage box group are better, and the end part of the fastener 30 can be prevented from being exposed to influence the use safety of users. Wherein the receiving groove has a depth equal to or greater than the end of the fastener 30 such that the end of the fastener 30 is fully received within the receiving groove.

Wherein, clearance fit between arch and the recess, the clearance between arch and the recess is h1, and h1 satisfies the relational expression: h1 is more than 0mm and less than or equal to 1mm. That is to say, although clearance fit exists between the protrusions and the grooves, the precision and stability of stacking, hoisting and connection and assembly of the energy storage box 100 can be ensured by controlling the clearance h1 between the protrusions and the grooves, and meanwhile, the connection strength of the energy storage box 100 during stacking can be improved. Wherein, if clearance h1 between arch and the recess is greater than 1mm, although first connecting piece 11 and second connecting piece 12 interconnect is more convenient, but the joint strength between first connecting piece 11 and the second connecting piece 12 is relatively poor, and two energy storage box 100 that pile up each other take place to topple easily.

And, in the axial direction of the projection, the projection has a dimension a, a satisfying the relation: a is more than 10mm. That is, the fitting length a between the projection and the groove is greater than 10mm, so that it is possible to secure a sufficient contact area between the projection and the groove, thereby effectively improving the coupling strength between the projection and the groove, and thereby securing the coupling stability between the first coupling member 11 and the second coupling member 12.

Wherein, because the first mounting hole 112 and the fourth mounting hole are arranged on the bulge, the actual volume of the bulge is smaller than the whole volume of the bulge. Thus, the ratio of the volume of the hollowed-out space to the volume of the protrusion is v1, v1 is less than 0.25, namely, the actual volume of the protrusion accounts for not less than 75% of the whole volume of the protrusion, so that the actual load-bearing volume of the protrusion is larger, namely, the structural strength of the protrusion is larger.

Of course, if the first mounting hole 112 and the fourth mounting hole are not formed on the protrusion, the volume of the hollow space may be 0.

Furthermore, the ratio of the volume of the hollowed-out space to the volume of the protrusion is v1, v1 is more than 0.15 and less than 0.25, namely, the actual volume of the protrusion accounts for 75-85% of the whole volume of the protrusion, so that the whole structure of the protrusion is reasonable, reasonable matching between the protrusion and the groove can be realized, the connection strength between the protrusion and the groove can be improved, and the energy storage box 100 can be conveniently hoisted.

And the ratio of the volume of the groove to the volume of the first connecting member 11 or the second connecting member 12 is v2, v2 > 0.2. That is, the actual volume of the groove accounts for not less than 20% of the entire volume of the first link 11 or the second link 12, which makes the actual load-bearing volume of the groove larger, that is, the structural strength of the groove larger.

Further, v2 satisfies the relation: v2 is less than 0.3. I.e. the ratio v2 of the volume of the groove and the volume of the first connecting piece 11 or the second connecting piece 12 is less than 0.3, i.e. the actual volume of the groove does not account for more than 30% of the total volume of the first connecting piece 11 or the second connecting piece 12, which makes the volume of the groove that actually carries the load larger, so that the groove can carry a larger load.

The area of the projection of the protrusion on the first connecting piece 11 or the second connecting piece 12 is s1, the area of the upper surface of the first connecting piece 11 or the second connecting piece 12 is s2, and the s1 and the s2 satisfy the relation: s1/s2 is greater than 0.2. So set up, protruding area of projection on first connecting piece 11 accounts for being greater than 0.2 of the area of first connecting piece 11 upper surface, can make things convenient for the connection of first connecting piece 11 and second connecting piece 12 like this to and effectual joint strength who promotes between first connecting piece 11 and the second connecting piece 12. For example, when the ratio of the area s1 of the upper surface of the projection to the area s2 of the upper surface of the first connecting member 11 is less than 0.2, the occupation area of the projection is small and the contact area between the projection and the groove is small, so that the connection strength between the first connecting member 11 and the second connecting member 12 is poor.

Further, s1 and s2 satisfy the relation: s1/s2 > 0.3. In this way, the area of the projection of the protrusion on the first connecting piece 11 occupies more than 0.2 of the area of the upper surface of the first connecting piece 11, which further improves the connection strength between the first connecting piece 11 and the second connecting piece 12.

And when the area of the projection of the first connecting portion 111 or the second connecting portion 121 on the second connecting member 12 is s3, the area of the lower surface of the second connecting member 12 is s4, and s3 satisfy the relation: s3/s4 > 0.25. So set up, the area of the projected area of recess on second connecting piece 12 accounts for the area of second connecting piece 12 lower surface and is greater than 0.25, can make things convenient for the connection of first connecting piece 11 and second connecting piece 12 like this to and the effectual joint strength who promotes between first connecting piece 11 and the second connecting piece 12. For example, when the ratio of the area s3 of the upper surface of the groove to the area s4 of the lower surface of the second connecting member 12 is less than 0.25, the occupation ratio of the groove is small, the contact area between the protrusion and the groove is small, so that the connection strength between the first connecting member 11 and the second connecting member 12 is poor, and the outer diameter of the protrusion is small, and the first connecting member 11 is easily broken.

Further, s3 and s3 satisfy the relation: s3/s4 > 0.35. With the arrangement, the area of the projection of the groove on the second connecting piece 12 occupies an area larger than 0.35 of the lower surface of the second connecting piece 12, so that the connecting strength between the first connecting piece 11 and the second connecting piece 12 can be further improved.

Referring to fig. 4 and 7, the first connector 11 is provided with a support base 13 at the bottom of the first connection portion 111. Wherein, when single energy storage box 100 or the energy storage box group after a plurality of piles are placed subaerial, if the ground planarization is relatively poor, energy storage box 100 local atress to make energy storage box 100 damage easily, and, single energy storage box 100 or the energy storage box group after a plurality of piles directly place subaerial the time, the moisture on ground causes energy storage box 100's corruption easily. From this, set up supporting seat 13 at the bottom of first connecting portion 111 to supporting seat 13 and first connecting piece 11 fixed connection, thereby satisfied functions such as fixed, bearing, the transportation of energy storage box 100.

Specifically, the supporting base 13 is provided with a mounting cavity, and the supporting base 13 is provided with a third mounting hole, so that the supporting base 13 can be fixed on the ground through the fastener 30, and the connection strength between the supporting base 13 and the bottom surface can be improved.

Referring to fig. 10, a power storage box 100 according to an embodiment of the present invention includes: and a plurality of fitting assemblies and the fixed connection assembly 10 stacked in the energy storage box 100, wherein the plurality of fitting assemblies are connected with the first connecting member 11 and/or the second connecting member 12. So configured, the energy storage box 100 is composed of a plurality of assembly components and the fixed connection assembly 10. If the energy storage box 100 is square, the energy storage box 100 is composed of four first connecting pieces 11, four second connecting pieces 12 and four assembling components. Specifically, four first connecting members 11 are disposed at corners of the upper surface of the energy storage box 100, and a fitting assembly is connected between two adjacent first connecting members 11. Similarly, four second connecting members 12 are disposed at corners of the lower surface of the energy storage box 100, and an assembly component is connected between two adjacent second connecting members 12. That is, any one plane of the energy storage box 100 is constituted by four second connecting members 12 and one fitting assembly, or by four first connecting members 11 and one fitting assembly, or by two second connecting members 12, two first connecting members 11 and one fitting assembly.

Wherein, the assembly subassembly includes: the rod body 20 and the plate body 40, the rod body 20 is connected with the first connecting piece 11 and/or the second connecting piece 12, and the plate body 40 is clamped among the plurality of rod bodies 20. Wherein, a frame can be formed among the rod body 20, the first connecting piece 11 and the second connecting piece 12, then a plate body 40 is arranged on the periphery of the frame, and the plate body 40 can close the frame, so that the plate body 40, the rod body 20, the first connecting piece 11 and the second connecting piece 12 form a whole.

Further, as shown in fig. 5, fig. 6 and fig. 9, a third connecting portion 21 is disposed on the rod body 20, a fourth connecting portion 14 is disposed on the first connecting member 11 and the second connecting member 12, the rod body 20 is disposed between two adjacent first connecting members 11, and the third connecting portion 21 and the fourth connecting portion 14 are fixedly connected. Or, the rod 20 is disposed between two adjacent second connectors 12, and the third connecting portion 21 and the fourth connecting portion 14 are fixedly connected. That is, the rod body 20 and the first connecting member 11 are fixedly connected through the third connecting portion 21 and the fourth connecting portion 14, and the rod body 20 and the second connecting member 12 are also fixedly connected through the third connecting portion 21 and the fourth connecting portion 14, so that the connection between the rod body 20 and the first connecting member 11 and the connection between the rod body 20 and the second connecting member 12 can be realized.

Referring to fig. 5, 6 and 9, the third connecting portion 21 is one of a projection and a groove, and the fourth connecting portion 14 is the other of a projection and a groove, and the groove and the projection are fitted to each other. So set up, realize being connected through arch and recess between the body of rod 20 and the first connecting piece 11, can make things convenient for the connection between the body of rod 20 and the first connecting piece 11 like this, and in the same way, can make things convenient for the connection between the body of rod 20 and the second connecting piece 12.

And, clearance fit between arch and the recess, the clearance between arch and the recess is h2, and h2 satisfies the relational expression: h2 is more than 0mm and less than or equal to 1mm. That is, although the protrusion and the groove are in clearance fit, the precision and stability of the assembly of the energy storage box 100 can be ensured by controlling the clearance h2 between the protrusion and the groove.

The area of the projection of the fourth connecting portion 14 on the first connecting member 11 or the second connecting member 12 is s5, the area of the side surface where the projection of the fourth connecting portion 14 on the first connecting member 11 or the second connecting member 12 is located is s6, and s5 and s6 satisfy the relation: s5/s6 is greater than 0.3. With this arrangement, the area of the projection of the fourth connecting portion 14 on the first connecting member 11 or the second connecting member 12 occupies an area greater than 0.3 on the side of the first connecting member 11 or the second connecting member 12, so that the contact area between the rod 20 and the first connecting member 11 or the second connecting member 12 can be effectively increased, that is, the connection strength between the rod 20 and the second connecting member 12 or the first connecting member 11 can be increased.

Further, s5 and s6 satisfy the relation: s5/s6 is greater than 0.75. So configured, the connection strength between the rod body 20 and the second connecting member 12 or the first connecting member 11 can be further improved.

Wherein, in bellied axial direction, protruding size of arch is b, and b satisfies the relational expression: b is more than 10mm. That is, the size of the effective contact surface between the protrusion and the groove is not less than 10mm, that is, the protrusion extends into the groove by a length of not less than 10mm, which can improve the coupling strength between the rod body 20 and the first coupling member 11 and the coupling strength between the rod body 20 and the second coupling member 12.

The plurality of plate bodies 40, the plurality of rod bodies 20 and the fixing and connecting assembly 10 may be integrally formed. So, integrated into one piece between plate body 40, the body of rod 20, first connecting piece 11 and the second connecting piece 12 can make things convenient for the preparation and the production of energy storage box 100 like this to and integrated into one piece's energy storage box 100 structural strength is higher, can promote energy storage box 100's bearing capacity like this effectively.

According to the utility model discloses energy storage box group of third aspect embodiment includes: at least two energy storage boxes 100, and the fixing and connecting assembly 10 is arranged between the energy storage boxes 100 above and below. When two adjacent energy storage boxes 100 are stacked, the first connecting piece 11 and the second connecting piece 12 can be fixedly connected, and the first connecting piece 11 and the second connecting piece 12 are connected through the protrusions and the grooves, so that the stacking operation of the energy storage boxes 100 is simple, quick and convenient, and the stability of the stacked energy storage box group is high.

And when two adjacent energy storage boxes 100 are combined, that is, two adjacent energy storage boxes 100 are assembled in the left-right or front-back direction, a third connecting piece 15 may be disposed between two adjacent energy storage boxes, wherein one end of the third connecting piece 15 is fixedly connected to the first connecting piece 11 of one of the energy storage boxes, and the other end of the third connecting piece 15 is fixedly connected to the first connecting piece 11 of the other energy storage box, so that the combination of the energy storage boxes 100 may be implemented.

Specifically, the fifth mounting hole is formed in the third connecting member 15, so that the fastening member 30 can pass through the fifth mounting hole and then be fixedly connected with the first mounting hole 112, thereby improving the connection strength between the third connecting member 15 and the first connecting member 11.

In the description of the present invention, it is to 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", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (20)

1. A stationary connection assembly that energy storage box was piled up, characterized in that includes:

the first connecting piece (11) is used for being fixed on the upper surface of the energy storage box (100), a first connecting part (111) is arranged on the first connecting piece (11), and the first connecting part (111) is one of a protrusion and a groove;

the energy storage box (100) comprises a second connecting piece (12), wherein the second connecting piece (12) is used for being fixed on the lower surface of the energy storage box (100), a second connecting portion (121) is arranged on the second connecting piece (12), the second connecting portion (121) is of another one of a protrusion and a groove, and the groove and the protrusion are matched with each other to realize stacking of the energy storage box (100).

2. The assembly according to claim 1, wherein the assembly (10) further comprises a fastening member (30), the protrusion further has a first mounting hole (112), the side wall of the recess has a second mounting hole (122), and the fastening member (30) is configured to pass through the second mounting hole (122) and then fixedly connect with the first mounting hole (112) when the recess and the protrusion are engaged with each other.

3. The stacked fixed connection assembly of energy storage boxes according to claim 2, wherein an escape groove (123) is provided on the outer circumferential surface of the second connection member (12), and a portion of the fastener (30) is fitted in the escape groove (123).

4. The stacked fastening assembly of energy storage boxes of claim 1, wherein the protrusion is in clearance fit with the groove, the clearance between the protrusion and the groove is h1, and h1 satisfies the relationship: h1 is more than 0mm and less than or equal to 1mm.

5. The assembly according to claim 1, wherein the projection has a projection dimension a in the axial direction of the projection, a satisfying the relationship: a is more than 10mm.

6. The stacked fixing and connecting assembly of the energy storage box according to claim 1, wherein a hollowed-out space is arranged in the protrusion, the volume of the hollowed-out space and the volume of the protrusion are in a ratio of v1, and v1 satisfies the relation: v1 < 0.25.

7. The stacked stationary connection assembly of energy storage tanks, according to claim 6, characterized in that v1 satisfies the relation: v1 is more than 0.15 and less than 0.25.

8. A stationary connection assembly of a stack of energy storage tanks, according to claim 1, characterized in that the ratio of the volume of the recess and the volume of the first (11) or second (12) connection member is v2, v2 satisfying the relation: v2 > 0.2.

9. The stacked stationary connection assembly of energy storage tanks, according to claim 8, wherein v2 satisfies the relation: v2 is less than 0.3.

10. The assembly according to claim 1, wherein the projection of the protrusion onto the first connecting member (11) or the second connecting member (12) has an area s1, the upper surface of the first connecting member (11) or the second connecting member (12) has an area s2, and s1 and s2 satisfy the following relation: s1/s2 is more than 0.2; and/or the presence of a gas in the gas,

when the area of the projection of the first connecting part (111) or the second connecting part (121) on the second connecting part (12) is s3, the area of the lower surface of the second connecting part (12) is s4, and the s3 satisfy the relation: s3/s4 > 0.25.

11. The assembly according to claim 10, wherein s1 and s2 satisfy the relationship: s1/s2 is more than 0.3;

and/or s3 and s3 satisfy the relation: s3/s4 > 0.35.

12. The assembly according to claim 1, wherein the first connector (11) is provided with a support seat (13) at the bottom of the first connection portion (111).

13. An energy storage tank, comprising:

a plurality of mounting assemblies;

the stationary connection assembly (10) of a stack of energy storage tanks (100) of any one of claims 1 to 12, a plurality of said fitting assemblies being connected with said first connection member (11) and/or said second connection member (12).

14. Energy storage tank (100) according to claim 13, characterized in that said fitting assembly comprises: the connecting rod comprises a rod body (20) and a plate body (40), wherein the rod body (20) is connected with the first connecting piece (11) and/or the second connecting piece (12), and the plate body (40) is clamped between the rod bodies (20).

15. The energy storage box of claim 14, wherein a third connecting portion (21) is arranged on the rod body (20), a fourth connecting portion (14) is arranged on the first connecting piece (11) and the second connecting piece (12), the rod body (20) is arranged between two adjacent first connecting pieces (11), and the third connecting portion (21) and the fourth connecting portion (14) are fixedly connected; and/or the presence of a gas in the gas,

the rod body (20) is arranged between two adjacent second connecting pieces (12) and the third connecting portion (21) is fixedly connected with the fourth connecting portion (14).

16. An energy storage tank according to claim 15, characterized in that the third connection portion (21) is one of a projection and a recess, and the fourth connection portion (14) is the other of a projection and a recess, the recess and the projection cooperating with each other; and (c) a second step of,

the protrusion is in clearance fit with the groove, the clearance between the protrusion and the groove is h2, and h2 satisfies the relation: h2 is more than 0mm and less than or equal to 1mm.

17. An energy storage tank according to claim 15, characterized in that the area of the projection of the fourth connecting portion (14) on the first connecting member (11) or the second connecting member (12) is s5, the area of the side of the projection of the fourth connecting portion (14) on the first connecting member (11) or the second connecting member (12) is s6, and s5 and s6 satisfy the relation: s5/s6 is greater than 0.3.

18. An energy storage tank according to claim 15, characterized in that the dimension b of the protrusion in the axial direction of the protrusion satisfies the relation: b is more than 10mm.

19. The energy storage box of claim 14, wherein the plurality of plates (40), the plurality of rods (20) and the fixing and connecting assembly (10) are of an integrally formed structure.

20. An energy storage tank assembly, comprising:

-at least two energy storage tanks (100) according to any of claims 13 to 19, the stationary connection assembly (10) being arranged between the energy storage tanks (100) above and below.

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