CN209016128U

CN209016128U - A kind of battery modules frame and battery modules

Info

Publication number: CN209016128U
Application number: CN201821773704.2U
Authority: CN
Inventors: 黄海华; 石卫刚
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2019-06-21
Anticipated expiration: 2028-10-30

Abstract

The utility model relates to battery modules technical field, providing a kind of battery modules frame and battery modules, the battery modules frame includes: two end plates, and more than two column fixing pieces are provided on the end plate；And more than two connection straps, described two end plates are connected, at least there is a contact surface, the contact surface is for compressing single battery；The both ends of the connection strap are respectively arranged with U-shaped card slot, and the U-shaped card slot is caught in the column fixing piece, and is fixedly connected with the column fixing piece.Battery modules frame bonding strength is high, while U-shaped card slot is also convenient for assembling with the column fixing piece, and it is big to efficiently solve the problems, such as when prior art end plates are connect with connection strap that bolt with hole location is aligned difficulty.

Description

A kind of battery modules frame and battery modules

Technical field

The utility model relates to battery modules technical fields, more particularly to a kind of battery modules frame and are provided with this The battery modules of module framework.

Background technique

In the prior art, the frame structure of battery modules is mainly the end plate by being located at mould group both ends, and is located at mould The plate-side plate welding of group two sides forms.However the single battery in battery modules can expand in use, therefore easily make At cracking at end plate and plate-side plate welding.

In the prior art, the battery modules frame of another layering type is had also appeared, the layering type battery modules frame Frame includes end plate and the press strip for connecting the end plate.Wherein, between the both ends of the press strip and the end plate by fixation hole with And bolt, nut check, in assembling, bolt is difficult to be aligned with the hole location of fixation hole, is not easy to battery modules installation.

Utility model content

For this reason, it may be necessary to provide a kind of battery modules frame, for solving in the prior art, the side plate and the end plate are welded It connects bolt in the easy to crack and layering type module framework in place to be not easy to be aligned with hole location, the big problem of installation difficulty.

To achieve the above object, a kind of battery modules frame is inventor provided, comprising:

Two end plates are provided with more than two column fixing pieces on the end plate；And

More than two connection straps connect described two end plates, at least have a contact surface, the contact surface is for pressing Tight single battery；

The both ends of the connection strap are respectively arranged with U-shaped card slot, and the U-shaped card slot is caught in the column fixing piece, and with The column fixing piece is fixedly connected.

Further, the column fixing piece is set to the outer surface of the end plate, the U-shaped at the connection strap both ends Card slot is located at the outer surface of the end plate, and connect with the column fixing piece.

Further, the end plate is rectangle end plate, and the quadrangle of end plate passes through the connection strap and connects.

Further, it is L-shaped connection strap that the connection strap, which is section, has the first contact surface and the second contact surface, institute The first contact surface is stated for contacting with the side of the single battery, second contact surface is for the top with the single battery Face or bottom surface contact.

Further, the bending of the both ends of first contact surface and second contact surface and overlapped formation end face, The U-shaped card slot is set on the end face.

Further, the both ends of first contact surface are bent to form end face, and the U-shaped card slot is set to the end face On；

The both ends of second contact surface are separately provided for fixing the fixation hole of the battery modules frame.

Further, the bottom of the end plate is provided with the fixation hole for fixing the battery modules frame.

Further, fixed ear is provided in the middle part of the connection strap, the fixed ear is provided with for fixing the electricity The fixation hole of pond module framework.

Further, the column fixing piece is bolt, and the U-shaped card slot is caught in the bolt, and passes through nut and institute Bolt is stated to be fixedly connected.

In order to solve the above technical problems, the utility model additionally provides a kind of battery modules.The battery modules include:

More than two single batteries, and

Module framework, for fixing the single battery, the module framework is electricity described in any of the above technical solution Pond module framework.

It is different from the prior art, connects two end plates by more than two connection straps in above-mentioned technical proposal, formed solid The module framework of order body battery, the connection strap both ends are clamped simultaneously by the column fixing piece in U-shaped card slot and the end plate It is fixed.The technical solution does not use welding procedure, avoids problem of Cracking at end plate and plate-side plate welding, while U-shaped card slot and institute It states column fixing piece to be also convenient for assembling, efficiently solves when prior art end plates are connect with connection strap bolt with hole location and be aligned difficulty Spend big problem.

Detailed description of the invention

Fig. 1 is the schematic perspective view of battery modules described in specific embodiment；

Fig. 2 is the explosive view of battery modules described in specific embodiment；

Fig. 3 is the schematic perspective view of end plate described in specific embodiment；

Fig. 4 is the partial enlarged view of part A in Fig. 2；

Fig. 5 is the schematic perspective view of connection strap described in an embodiment；

Fig. 6 is the partial enlarged view of part B in Fig. 5；

Fig. 7 is the schematic perspective view of end plate described in an embodiment；

Fig. 8 is the schematic perspective view of battery modules described in an embodiment；

Fig. 9 is the schematic perspective view of connection strap described in an embodiment；

Figure 10 is the schematic perspective view of battery modules described in an embodiment；

Description of symbols:

1, end plate；

11, column fixing piece；

12, fixation hole；

2, connection strap；

21, U-shaped card slot；

22, the first contact surface；

23, the second contact surface；

24, fixation hole；

25, fixed ear；

3, single battery；

4, nut；

Specific embodiment

Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality It applies example and attached drawing is cooperated to be explained in detail.

Fig. 1 to Figure 10 is please referred to, a kind of battery modules are present embodiments provided.

The battery modules include more than two single batteries 3 and the module framework for fixing the single battery 3.Institute Stating module framework includes two end plates 1 and the connection strap 2 for connecting described two end plates 1.

As depicted in figs. 1 and 2, the single battery 3 is set to the end plate 1 and is formed by accommodating with the connection strap 2 In space.Single battery 3 is the energy-storage units of battery modules, for storing electric energy and externally providing electric energy.More than two institutes State single battery 3 can front and back recline and be arranged, and the modes such as serial or parallel connection can be used and connect, form battery pack.Wherein, The single battery 3 can be provided only with a column in the module framework, more than two column can also be arranged side by side.Each column monomer The big face of shell of two neighboring single battery 3 is oppositely arranged in battery, and the facet of adjacent two column single battery 3 is oppositely arranged.

Described two end plates 1 are oppositely arranged, and the space between two end plates 1 is for placing the single battery 3.Such as Fig. 3 It is shown, the surface of the end plate 1 is provided with column fixing piece 11, the end plate is fixed in the root of the column fixing piece 11 On 1, the end that column is fixed 11 is protruded to the surface direction of the end plate 1.Wherein, the column fixing piece 11 can pass through pressure The techniques such as riveting or welding are fixed on the end plate 1.The column fixing piece 11 may be by the production such as die casting or casting Technique and end plate 1 are integrally formed.

As shown in Figure 2 and Figure 4, one end of the connection strap 2 is connect with wherein end plate 1, the other end of connection strap 2 and another End plate 1 connects.Specifically, being respectively provided with U-shaped card slot 21 at the both ends of the connection 2, the U-shaped card slot 21 is caught in described Column fixing piece 11, and be fixedly connected with the column fixing piece 11, to realize the connection of connection strap 2 Yu the end plate 1.Its In, the U-shaped card slot 21 be it is not closed poroid, one side is provided with opening, and the width of the opening is consolidated not less than the column Determine the diameter or width of part 11, therefore is caught in the U-shaped card slot 21 convenient for the column fixing piece 11.The connection strap 2 has There is contact surface, the contact surface is fixed on single battery 3 in battery modules for compressing the single battery 3.With tradition electricity Side plate in Chi Mo group is different, and the width of the connection strap 2 is less than the width of side plate, connection strap 2 only with the single battery 3 Side and summit portion contact, i.e., the side and top surface of the single battery 3 is not completely covered.

In the present embodiment, the column fixing piece 11 is bolt, width and the bolt of the U-shaped card slot 21 Diameter is adapted, and the U-shaped card slot 21, which is caught in after the bolt, makes the U-shaped card slot 21 and bolt and institute by nut 4 again End plate 1 is stated to be fixed together.

In other embodiments, the surface of the column fixing piece 11 can be not provided with screw thread (can be smooth surface), After the U-shaped card slot 21 is caught in the column fixing piece 11, briquetting can be inserted on the column fixing piece 11, the briquetting can It welds with the column fixing piece 11 or is welded with the surface of the end plate 1, the briquetting compresses the U-shaped card slot 21 described End plate 1, to realize that connection strap 2 is fixedly connected with end plate 1.

As depicted in figs. 1 and 2, in the present embodiment, the column fixing piece 11 is fixed on the appearance of the end plate 1 Face, and the end of column fixing piece 11 is protruded to the outer surface direction of the end plate 1.The both ends of the connection strap 2 extend to The outer surface of the end plate 1, and the end of the connection strap 2 and the U-shaped card slot 21 stick on the end plate 1 by outside Outer surface, and cooperate the U-shaped card slot 21 with the column fixing piece 11.

In other embodiments, the column fixing piece 11 may be disposed at the inner surface of the end plate 1, i.e. column is solid It is protruded towards the inner surface direction of end plate 1 end for determining part 11.The both ends of the connection strap 2 and the inner surface of the end plate 1 recline, And U-shaped card slot 21 is made to be caught in the column fixing piece 11.In this embodiment, to make the end of the column fixing piece 11 not The single battery 3 is interfered with, the area of the end plate 1 should be greater than the big face area of the single battery 3, and make the column Position of the fixing piece 11 on the end plate 1 should avoid open the opposite position in the big face of the single battery 3.

It can be seen that being set to the inner surface of the end plate 1 relative to column fixing piece 11, the column fixing piece 11 is arranged In the outer surface of the end plate 1, the area of the end plate 1 can be made suitable with the big face area of the single battery 3, to make The volume of entire battery modules is minimum, the advantageous energy density for improving battery modules.

As depicted in figs. 1 and 2, in the present embodiment, the end plate 1 is rectangle end plate, the area of end plate 1 and the list The area in the big face of body battery 3 is suitable, and the quadrangle of the end plate 1 is provided with the column fixing piece 11, and the connection Item 2 is four, and the quadrangle of the end plate 1 is connected by the connection strap 2 respectively.Wherein, the quadrangle of end plate 1 passes through described Connection strap 2 is connected with each other, and so that the active force of four connection straps 2 is uniformly acted on the end plate 1, and single battery The expansive force of 3 pairs of end plates 1 can also be evenly transferred on four connection straps 2, to favorably guarantee the whole knot of battery modules Structure stability.

As shown in Figure 2 and Figure 4, it is L-shaped connection strap that the connection strap 2, which is section, i.e., the described connection strap 2 is cut by L shape Face is formed along bus (i.e. length direction) movement.The L shape connection strap 2 has be mutually perpendicular to (or close to vertically) first to connect Contacting surface 22 and the second contact surface 23.Wherein, first contact surface 22 is described for contacting with the side of the single battery 3 Second contact surface 23 with the top surface of the single battery 3 or bottom surface for contacting.

As shown in figure 4, the L shape connection strap 2 is located at the quadrangle of the end plate 1, and more than two single batteries 3 are mutually On four angles of the battery pack for the institute's shape that reclines.Wherein, positioned at top two L shape connection straps 2 the first contact surface 22 with it is described The side of single battery 3 contacts, and the second contact surface 23 is contacted with the top surface of single battery 3, compresses monomer electricity from side and top surface Pond 3.The first contact surface 22 positioned at two L shape connection straps 2 of bottom is contacted with the side of the single battery 3, the second contact Face 23 is contacted with the bottom surface of single battery 3, compresses single battery 3 from side and bottom surface.Therefore four L shapes connection strap 2 can With from single battery 3 described in top surface, bottom surface and two lateral surface compressings, so that the single battery 3 is firmly fixed on institute It states between two end plates 1 and four L shape connection straps 2.

As shown in figure 4, the both ends of the L shape connection strap 2 have an end face of double-layer structure, the end face of the double-layer structure by The end of first contact surface 22 and second contact surface 23 bends respectively and is allowed to overlapped formation.Specifically, institute The end face for stating the double-layer structure at 2 both ends of L shape connection strap is end and second contact surface by first contact surface 22 23 end side direction (i.e. 3 direction of single battery) bending (substantially 90 degree of bending) respectively inwards, to make bending part phase Mutually overlapping forms the end face substantially vertical with the axis of L shape connection strap 2.Also, the U-shaped card slot 21 is just set to the bilayer On structure end face.Due to the end face that the end face of the L shape connection strap 2 is double-layer structure, the U-shaped card slot 21 is set to the bilayer On the end face of structure, to make the end face of connection strap 2 and U-shaped card slot 21 that there is stronger tensile strength.

As shown in Figures 2 and 3, using the end face with double-layer structure L shape connection strap 2 battery modules, can be in institute State the bottom setting fixation hole 12 of end plate 1, wherein may be provided with flange on the bottom edge of the end plate 1, the fixation hole 12 can be set It is placed on the flange.Therefore cooperated by the fixation hole 12 on two end plates 1 with bolt and nut, it can be by entire institute Battery modules are stated to be fixed on battery modules mounting surface.

In some embodiments, two connection straps 2 can be used only in the battery modules.Wherein, two connection straps 2 It is set on two angles at 1 top of end plate and (saves two connection straps 2 shown in Fig. 2 for being set to 1 bottom of end plate). In this embodiment, two end plates 1 are fixed on battery modules supporting surface by fixing pieces such as bolts, the single battery 3 It is similarly directly arranged on the supporting surface.Two connection straps 2 at 1 top of end plate are downwards and by two side compression single batteries 3, thus in the vertical direction and the fixed tight single battery 3 of side surface direction with supporting surface cooperation, the end plate 1 from The fixed tight single battery 3 in the both ends of single battery 3, therefore only pass through two connection straps 2, the end plate 1 at 1 top of end plate And battery modules supporting surface, the fixation single battery 3 that can be comprehensive.

As shown in Fig. 5 to Fig. 8, another embodiment of the battery modules is provided.The embodiment is implemented with more than Mode the difference is that, the fixed forms of the battery modules is different.In this embodiment, the battery modules are consolidated Determine the both ends that hole 24 is set to two L shape connection straps 2 of bottom, rather than is set on the end plate 1.

As shown in Figure 5 and Figure 6, the both ends of the L shape connection strap 2 are respectively arranged with the U-shaped card slot 21 and fixation hole 24. Wherein, the end of the first contact surface 22 in the L shape connection strap 2 (3 direction of single battery is inside) bending inwardly, End face is formed, the U-shaped card slot 21 is set on the end face.Identical as above embodiment, the U-shaped card slot 21 is used for and end Column fixing piece 11 on plate 1 connects.The both ends of second contact surface 23 may extend to the end face where the U-shaped card slot 21 Outside, and be separately provided for fixing the battery modules frame fixes 24 holes.

As shown in Figure 7 and Figure 8, in Fig. 7, there is no the fixation holes that fixed battery modules are arranged for the bottom of the end plate 1. As shown in figure 8, the battery modules are fixed on battery mould by being located at the fixation hole 24 at two 2 both ends of L shape connection strap of bottom Group mounting surface.

As shown in Figure 9 and Figure 10, another embodiment of the battery modules is provided.In this embodiment, described Two middle parts in the L shape connection strap 2 in battery modules positioned at bottom are provided with fixed ear 25, and the fixed ear 25 is arranged There is the fixation hole 24 for fixing the battery modules frame.Wherein, the middle part of the L shape connection strap 2 is connected relative to L shape For the both ends of item 2, i.e., the described fixed ear 25 and the fixation hole 24 are not placed at the both ends of the L shape connection strap 2.

Wherein, the number of the fixed ear 25 can be depending on the length by the battery modules, and the length of battery modules is got over Long, the quantity of the fixed ear 25 also increases accordingly.Fixed ear 25 on the L shape connection strap 2 of two of bottom and solid Determining hole 24 can be symmetrical arranged.The fixed ear 25 (can deviate from single battery 3 outward by the top of first contact surface 22 Direction) it is bent to form.

The embodiment is applicable to the longer battery modules of length.Since the length of battery modules is longer, battery modules When vibration, also power is increased accordingly for the effect of up and down direction suffered by 2 middle part of L shape connection strap.The embodiment will fix The fixation hole 24 of battery modules is set to the middle part of the L shape connection 2, and L shape connection strap 2 is thus prevented to become because of up-down vibration Shape improves the overall structural strength of long battery modules.

The utility model additionally provides a kind of battery modules frame.The battery modules frame includes above each embodiment Described in end plate 1 and connection strap 2.Above each embodiment has carried out in detail the end plate and the connection strap 2 Illustrate, here with regard to no longer to the end plate 1 and connect 2 structure and connection type repeat.

It should be noted that in the description of the present application unless specifically defined or limited otherwise, term " first ", " the Two ", it is only used for the purpose of description, is not understood to indicate or imply relative importance；Unless otherwise prescribed or illustrate, term " multiple " refer to two or more；Term " connection ", " fixation " etc. shall be understood in a broad sense, for example, " connection " can be It is fixedly connected, may be a detachable connection, or be integrally connected, or electrical connection；It can be directly connected, it can also be in Between medium be indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be Concrete meaning in invention.

In the description of this specification, it is to be understood that "upper", "lower" described in the embodiment of the present application, "left", "right" The equal nouns of locality are described with angle shown in the drawings, should not be construed as the restriction to the embodiment of the present application.In addition, In context, it is also necessary to which understanding can not only when mentioning an element and being connected to another element "upper" or "lower" It is enough connected directly between another element "upper" or "lower", another element "upper" can also be indirectly coupled to by intermediary element Or "lower".

Claims

1. a kind of battery modules frame, comprising:

More than two connection straps connect described two end plates, at least have a contact surface, the contact surface is for compressing list Body battery；

The both ends of the connection strap are respectively arranged with U-shaped card slot, and the U-shaped card slot is caught in the column fixing piece, and with it is described Column fixing piece is fixedly connected.

2. battery modules frame according to claim 1, the column fixing piece is set to the outer surface of the end plate, institute The U-shaped card slot for stating connection strap both ends is located at the outer surface of the end plate, and connect with the column fixing piece.

3. battery modules frame according to claim 1, the end plate is rectangle end plate, and the quadrangle of end plate passes through described Connection strap connection.

4. battery modules frame according to claim 3, the connection strap is that section is L-shaped connection strap, has first Contact surface and the second contact surface, first contact surface with the side of the single battery for contacting, second contact surface For being contacted with the top surface of the single battery or bottom surface.

5. the both ends of battery modules frame according to claim 4, first contact surface and second contact surface are curved It rolls over and overlapped formation end face, the U-shaped card slot is set on the end face.

6. battery modules frame according to claim 4, the both ends of first contact surface are bent to form end face, the U Shape card slot is set on the end face；

7. battery modules frame according to claim 1, the bottom of the end plate is provided with for fixing the battery mould The fixation hole of framing.

8. battery modules frame according to claim 1, fixed ear, the fixed ear are provided in the middle part of the connection strap It is provided with the fixation hole for fixing the battery modules frame.

9. battery modules frame according to claim 1, the column fixing piece is bolt, and the U-shaped card slot is caught in institute Bolt is stated, and is fixedly connected by nut with the bolt.

10. a kind of battery modules, comprising:

More than two single batteries, and

Module framework, for fixing the single battery, the module framework is any battery mould of claim 1 to 9 Framing.