CN218101590U - Battery fixing frame and battery device - Google Patents

Abstract

The disclosure relates to the technical field of battery devices, and discloses a battery fixing frame and a battery device; at least one side of group battery is located to this fixed frame of battery, and the group battery includes a plurality of battery cells, is provided with the heat transfer board between the battery cell, is connected with the connecting pipe on the heat transfer board, and this fixed frame of battery includes first mount, and at least one side of the first direction of group battery is located to first mount, and first mount is close to one side of connecting pipe includes spacing portion, and spacing portion is used for spacing the connecting pipe. The vibration amplitude of the connecting pipe can be limited through the limiting part, and the connecting pipe is prevented from generating pulling force on the connecting part of the connecting pipe and the heat exchange plate, so that the connecting failure (cracking) between the connecting pipe and the heat exchange plate is avoided; and then avoid heat transfer medium to flow to the battery box in, and produce the short circuit between the monomer battery that leads to, avoid causing the incident.

Description

Battery fixing frame and battery device

Technical Field

The disclosure relates to the technical field of battery devices, in particular to a battery fixing frame and a battery device comprising the same.

Background

Green and high-efficiency secondary batteries are being vigorously developed at present. The lithium ion battery as a novel secondary battery has the advantages of large energy density and power density, high working voltage, light weight, small volume, long cycle life, good safety, environmental protection and the like, and has wide application prospect in the aspects of electric vehicles, portable electric appliances, electric tools, large-scale energy storage equipment and the like, so that the design optimization of the lithium ion battery becomes an important project for the current development.

However, the risk of connection failure between the heat exchange plate and the connection pipe in the current battery device is large.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to overcome the disadvantage of the related art that the risk of connection failure between a heat exchange plate and a connection pipe is large, and provides a battery fixing frame with a small risk of connection failure between a heat exchange plate and a connection pipe and a battery device including the same.

According to an aspect of the present disclosure, a battery fixing frame is provided, locates at least one side of group battery, the group battery includes a plurality of battery cells, be provided with the heat transfer board between the battery cell, be connected with the connecting pipe on the heat transfer board, the battery fixing frame includes:

the first fixing frame is arranged on at least one side of the first direction of the battery pack, the first fixing frame is close to one side of the connecting pipe and comprises a limiting portion, and the limiting portion is used for limiting the connecting pipe.

According to the battery fixing frame, on one hand, a battery device can be subjected to frequent vibration in the using process, the connecting pipe is generally fixed at two ends and free in the middle, so that the vibration amplitude of the middle part of the connecting pipe is large in the vibration process, the vibration amplitude of the connecting pipe can be limited through the limiting part, and the too large vibration amplitude of the connecting pipe is avoided, so that the connecting pipe is prevented from generating pulling force on the connecting part of the connecting pipe and a heat exchange plate, and the connecting failure (cracking) between the connecting pipe and the heat exchange plate is avoided; and then avoid heat transfer medium to flow to the battery box in, and produce the short circuit between the monomer battery that leads to, avoid causing the incident. On the other hand, not only can reach the spacing effect of connecting pipe through first mount, can also reach the effect of fixing battery row.

According to another aspect of the present disclosure, there is provided a battery device including:

the battery pack comprises a plurality of single batteries, at least two battery rows are arranged along a first direction, and a first gap is arranged between every two adjacent battery rows;

the heat exchange plate is arranged in the first gap and comprises a protruding end part, and the protruding end part protrudes out of the battery row in the first direction;

a connection pipe connected to the protruding end portion;

the battery fixing frame is arranged on at least one side of the battery pack and is used for fixing the battery.

According to the battery device, on one hand, the battery device can be subjected to frequent vibration in the using process, the connecting pipe is generally fixed at two ends and free in the middle, so that the vibration amplitude of the middle part of the connecting pipe is large in the vibration process, the vibration amplitude of the connecting pipe can be limited through the limiting part, and the too large vibration amplitude of the connecting pipe is avoided, so that the connecting pipe is prevented from generating pulling force on the connecting part of the connecting pipe and the heat exchange plate, and the connecting failure (cracking) between the connecting pipe and the heat exchange plate is avoided; and then avoid heat transfer medium to flow to the battery box in, and produce the short circuit between the monomer battery that leads to, avoid causing the incident. On the other hand, not only can reach the spacing effect of connecting pipe through first mount, can also reach the effect of fixing the battery row, minimize to the inside finite space's of battery device occupation.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. It should be apparent that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic structural diagram of an exemplary embodiment of a battery device according to the present disclosure.

Fig. 2 is a partially enlarged perspective view of a portion indicated by H in fig. 1.

Fig. 3 is a schematic perspective view of the first fixing frame in fig. 1.

Fig. 4 is a partially enlarged structural view of a portion indicated by I in fig. 1.

Fig. 5 is a schematic perspective view of the second fixing frame in fig. 1.

Fig. 6 is a perspective view of another exemplary embodiment of a second fastening frame.

Description of reference numerals:

1. a battery fixing frame; 11. a first fixing frame; 111. a first fixed part; 1111. a first fixing plate; 1112. a first baffle plate; 1113. a groove; 1114. a first sub-cylindrical surface; 1115. a second sub-cylindrical surface; 112. a limiting part; 12. a second fixing frame; 121. a second fixing plate; 122. a second baffle; 123. a second cylindrical surface;

2. a battery cell; 21. a battery row; 21a, a first battery row; 21b, a second battery row; 211. a single battery; 22. a first gap;

3. a heat exchange plate; 31. a protruding end portion;

4. a connecting pipe; 41. a first pipe; 42. a second pipe;

5. a battery box; 51. a base plate; 52. a frame;

6. an insulating pad;

x, a first direction; y, a second direction; z, third direction.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be understood that if the illustrated device is turned upside down, elements described as "upper" will be those that are "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.

In the present application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection, a removable connection, or an integral part; may be directly connected or indirectly connected through an intermediate. "and/or" is only an association relationship describing an associated object, and indicates that three relationships may exist, for example, a and/or B, and may indicate: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The present disclosure provides a battery fixing frame 1, which is disposed on at least one side of a battery pack, the battery pack includes a plurality of single batteries 211, a heat exchange plate 3 is disposed between the single batteries 211, and a connection pipe 4 is connected to the heat exchange plate 3, as shown in fig. 1 to 5, only one first fixing frame 11 and one second fixing frame 12 are shown in fig. 1, and another first fixing frame 11 and another second fixing frame 12 that are disposed opposite to each other are omitted. The battery fixing frame 1 may include a first fixing frame 11, the first fixing frame 11 is disposed on at least one side of the battery pack in the first direction X, and the first fixing frame 11 may include a limiting portion 112, and the limiting portion 112 is used for limiting the connection pipe 4.

Based on the same inventive concept, the disclosed example embodiments provide a battery device, which may include a heat exchange plate 3, a connection pipe 4, a battery fixing frame 1, and a battery pack, as shown in fig. 1 to 5; the battery pack may include a plurality of single batteries 211, the plurality of single batteries 211 are arranged in at least two battery rows 21 along the first direction X, and a first gap 22 is disposed between two adjacent battery rows 21; the heat exchanger plate 3 is arranged in the first gap 22, the heat exchanger plate 3 comprises a protruding end portion 31, and the protruding end portion 31 protrudes out of the battery row 21 in the first direction X; the connection tube 4 is connected to the protruding end portion 31; the battery fixing frame 1 is provided on at least one side of the battery pack, and the battery fixing frame 1 is the battery fixing frame 1 described below.

According to the battery device disclosed by the invention, on one hand, the battery device can be subjected to frequent vibration in the use process, and the connecting pipe 4 is generally fixed at two ends and free in the middle, so that the vibration amplitude of the middle part of the connecting pipe 4 is large in the vibration process, the vibration amplitude of the connecting pipe 4 can be limited through the limiting part 112, and the overlarge vibration amplitude of the connecting pipe 4 is avoided, so that the connecting pipe 4 is prevented from generating pulling force on the connecting part of the connecting pipe 4 and the heat exchange plate 3, and the connection between the connecting pipe 4 and the heat exchange plate 3 is prevented from losing efficacy (cracking); and further avoid heat transfer medium to flow in battery box 5, and the monomer battery 211 that leads to produces the short circuit between, avoid causing the incident. On the other hand, the first fixing frame 11 not only can limit the connecting pipe 4, but also can fix the battery row 21, so that the occupation of the limited space in the battery device is reduced as much as possible.

The following exemplifies a battery pack and a battery device.

It should be noted that the first direction X and the second direction Y are both parallel to the bottom plate 11, and the first direction X intersects with the second direction Y, for example, the first direction X is perpendicular to the second direction Y; the third direction Z is perpendicular to the base plate 11.

Referring to fig. 1, the battery device may include a battery box 5, the battery box 5 may include a bottom plate 51, a protective cover (not shown in the figure), and a frame 52, the bottom plate 51 and the protective cover may be rectangular, the frame 52 is disposed around the bottom plate 51, the frame 52 is connected end to form a rectangular frame, the protective cover is disposed on the other side of the frame 52, and the protective cover is disposed opposite to the bottom plate 51. The bottom plate 51, the protective cover and the frame surround to form a receiving space.

Of course, in other example embodiments of the present disclosure, the bottom plate 51 and the protective cover may be provided in a circular shape, an oval shape, a trapezoidal shape, and the like, and the frame 52 may surround to form a circular shape, an oval shape, a trapezoidal shape, and the like, so that the battery case 5 is formed in a cylindrical shape, an oval cylindrical shape, a prismatic shape, and the like. The battery box 5 may also have other shapes, which are not described herein.

Referring to fig. 1 and 2, a battery pack is disposed in the battery box 5, and the battery pack may include a plurality of unit batteries 211, and the unit batteries 211 may be cylindrical. The unit battery 211 may include a battery case and a cell. The battery shell can set up to cylindrical, and battery shell can all set up to circular including relative first face and the second face that sets up promptly, first face and second face, are connected with the third face between first face and second face, and the third face sets up to the face of cylinder. A through hole is arranged on the first surface.

In the present exemplary embodiment, a cell is provided in the receptacle of the battery housing, and the cell is provided as a cylinder adapted to the battery housing. A battery core protective film is arranged outside the battery core, the battery core protective film is set to be cylindrical and matched with the battery core, a battery core supporting plate is arranged at the bottom of the battery core, and the battery core supporting plate and the battery core protective film enable the battery core and a battery shell to be insulated. The battery cell may include a plurality of positive electrode tabs and a plurality of negative electrode tabs.

A battery pole is arranged on one side, close to the first surface, of the battery core, and the plurality of positive plates are connected to the battery pole; the battery post extends out of the battery shell through the through hole on the first face to form the anode of the single battery 211. And a plurality of negative electrode tabs are connected to a first face, which forms the negative electrode of the unit cell 211. The positive electrode and the negative electrode of the unit cell 211 thus arranged are drawn from the same side. Of course, the battery post may be a negative electrode of the unit battery 211, and the first surface may be a positive electrode of the unit battery 211.

The second surfaces of the plurality of unit batteries 211 may be bonded to the bottom plate 51 of the battery case 5 by an adhesive, thereby fixing the plurality of unit batteries 211 in the battery case 5. The fixing method is simple and convenient, and the fixing is firmer.

In the present exemplary embodiment, the plurality of unit batteries 211 is arranged in at least two battery rows 21 along the first direction X.

Specifically, the plurality of unit batteries 211 are arranged in the first direction X to form a first battery row 21a, and a first space is provided between two adjacent unit batteries 211 in the first battery row 21a; the plurality of single batteries 211 are arranged along the first direction X to form a second battery row 21b, and a second interval is arranged between two adjacent single batteries 211 in the second battery row 21 b; the first cell rows 21a and the second cell rows 21b are arranged alternately in the second direction Y, that is, one second cell row 21b is provided between two adjacent first cell rows 21a, and one first cell row 21a is provided between two adjacent second cell rows 21b.

The unit batteries 211 in the second battery row 21b are arranged to face the first space of the first battery row 21a, and the unit batteries 211 in the first battery row 21a are arranged to face the second space of the second battery row 21 b; since the unit batteries 211 are cylindrical, a receiving space similar to a triangular shape is formed between two adjacent unit batteries 211 in the same column, and the arrangement is such that the first battery column 21a occupies a part of the receiving space in the adjacent second battery column 21b, and the second battery column 21b occupies a part of the receiving space in the adjacent first battery column 21a, thereby improving the energy density of the battery device.

The arrangement is such that at one end in the first direction, the second battery row 21b protrudes from the first battery row 21a; moreover, since each of the battery rows 21 includes the same number of the unit batteries 211, the first battery row 21a protrudes from the second battery row 21b at the other end in the first direction.

A first gap 22 is provided between two adjacent battery rows 21, that is, a first gap 22 is provided between the first battery row 21a and the second battery row 21b, and the heat exchange plate 3 is provided in the first gap 22.

In the present example embodiment, the battery device may include at least two battery units 2, and the battery units 2 may include two adjacent battery rows 21, that is, the battery units 2 may include a first battery row 21a and a second battery row 21b. The heat exchange plate 3 is arranged in the first gap 22 between two adjacent battery arrays 21 belonging to the same battery pack, that is, the heat exchange plate 3 is not arranged between each two adjacent battery arrays 21, that is, the heat exchange plate 3 is not arranged in each first gap 22. No heat exchange plate 3 is provided between two adjacent battery units 2, and thus, the battery device may include at least two heat exchange plates 3.

In the present exemplary embodiment, the heat exchange plate 3 is arranged in a wavy shape, that is, the heat exchange plate 3 includes a plurality of arc panels connected in sequence, one of the two adjacent arc panels is attached to one of the single batteries 211 in the first battery row 21a, and the other arc panel is attached to one of the single batteries 211 in the second battery row 21b. Therefore, the effect of heat exchange of the first battery row 21a and the second battery row 21b can be realized simultaneously through one heat exchange plate 3, and moreover, the contact areas of the heat exchange plate 3 and the single batteries 211 in the first battery row 21a and the second battery row 21b are both large, so that the heat exchange requirement on the single batteries 211 can be met.

The heat exchanger plate 3 may comprise a protruding end portion 31, the protruding end portion 31 protruding from the battery row 21 in the first direction X, and specifically, the heat exchanger plate 3 may comprise two protruding end portions 31, the protruding end portions 31 protruding from the battery row 21 on both sides in the first direction X.

The battery pack may further include a connection pipe 4, and the connection pipe 4 is located at a side of the first fixing frame 11 facing away from the battery pack. Of course, in some example embodiments, the connection pipe 4 is located at a side of the first fixing frame 11 close to the battery pack.

The connection pipe 4 is connected to the protruding end portion 31, and in particular, the connection pipe 4 is communicated with the fluid passage of the heat exchange plate 3. In the case where the protruding end portions 31 are provided in two, the connection pipes 4 are also provided in two, and the two connection pipes 4 are provided on opposite sides of the battery row 21 in the first direction X, one of the connection pipes 4 serving as a liquid inlet pipe and the other connection pipe 4 serving as a liquid outlet pipe.

The connection pipe 4 is connected between two adjacent heat exchanger plates 3, in particular, the connection pipe 4 is connected between the protruding end portions 31 of two adjacent heat exchanger plates 3 located on the same side.

Further, the connection pipe 4 may include a first pipe 41 and two second pipes 42; the first conduit 41 is provided as a hose; the hose can be a stainless steel hose, a metal hose, a corrugated hose, a rubber hose, a plastic hose and the like, and the hose has certain elasticity and can be bent. The second conduit 42 is provided as a rigid tube which cannot be bent. Two second tubes 42 are connected with two heat exchange plates 3 in a one-to-one correspondence, and the first tube 41 is connected between two adjacent second tubes 42.

The battery device can receive comparatively frequent vibration in the use, sets up first pipeline 41 into the hose, and first pipeline 41 can absorb most vibration to avoid being connected between connecting pipe 4 and the heat transfer board 3 to become invalid when the vibration, avoid the disconnection of being connected between connecting pipe 4 and the heat transfer board 3, lead to in heat transfer medium flows to battery box 5, lead to producing the short circuit between the battery cell 211, cause the incident.

And the second pipeline 42 connected with the two heat exchange plates 3 is set to be a hard pipe, so that the firmness of connection between the second pipeline 42 and the heat exchange plates 3 is ensured, and the process is simple and the cost is low.

In the present exemplary embodiment, the first fixing frames 11 are disposed at both ends of the battery row 21 in the first direction X, the first fixing frames 11 may be used to fix the plurality of unit batteries 211 in the first direction X, the first fixing frames 11 may include the limiting portions 112, and the limiting portions 112 may be used to limit the connection pipe 4. Of course, a structure dedicated to fixing the battery pack may also be provided between the first fixing frame 11 and the battery pack.

Referring to fig. 2, 3 and 4, the first fixing frame 11 may include a first fixing portion 111, the first fixing portion 111 may be configured to fix a plurality of single batteries 211, one surface of the first fixing portion 111 close to the single batteries 211 is configured to be in a shape adapted to the single batteries 211, and one surface of the first fixing portion 111 close to the single batteries 211 is attached to the single batteries 211; specifically, the bottom surface of the first fixing portion 111 is fixedly connected to the bottom plate 51 of the battery box 5, and a surface of the first fixing portion 111 close to the single battery 211 may include a plurality of sets of cylindrical surfaces, and a set of cylindrical surfaces includes two first cylindrical surfaces, which are referred to as: the first sub-cylindrical surface 1114 and the second sub-cylindrical surface 1115, the first sub-cylindrical surface 1114 may be attached to a third surface of the unit cells of the first cell row, and the second sub-cylindrical surface 1115 may be attached to a third surface of the unit cells of the second cell row. Since the second battery row 21b protrudes from the first battery row 21a at one end in the first direction, the first sub cylindrical surface 1114 protrudes from the second sub cylindrical surface 1115 at one end in the first direction. One surface of the first fixing portion 111 close to the single battery 211 can be attached to the single battery 211, so that the battery array 21 can be fixed in the first direction X by the two first fixing portions 111 of the two first fixing frames 11 at the two ends of the battery array 21.

In order to reduce the weight of the first fixing frame 11 and improve the energy density of the battery device, the first fixing portion 111 may be provided as a hollow structure.

Of course, in other exemplary embodiments of the present disclosure, in order to reduce the weight of the first fixing frame 11, the first fixing portion 111 may include a first fixing plate 1111 and a first baffle 1112, one side of the first fixing plate 1111 is fixed to the base plate 51, and the first fixing plate 1111 is disposed perpendicular to the base plate 51. The first baffle 1112 is fixed on a side of the first fixing plate 1111 facing away from the bottom plate 51, and the first baffle 1112 is substantially parallel to the bottom plate 51, that is, the first baffle 1112 is arranged perpendicular to the first fixing plate 1111. One side of the first baffle 1112 close to the single battery 211 is configured to be in a shape adapted to the single battery 211, and since the single battery 211 is a cylindrical battery, the one side of the first baffle 1112 close to the single battery 211 includes a plurality of sets of cylindrical surfaces, and a set of cylindrical surfaces includes two cylindrical surfaces, which are referred to as: the first sub-cylindrical surface 1114 and the second sub-cylindrical surface 1115, the first sub-cylindrical surface 1114 may be attached to a third surface of the unit cells of the first cell row, and the second sub-cylindrical surface 1115 may be attached to a third surface of the unit cells of the second cell row. Since the second battery row 21b protrudes from the first battery row 21a at one end in the first direction, the first sub cylindrical surface 1114 protrudes from the second sub cylindrical surface 1115 at one end in the first direction. One surface of the first fixing portion 111 close to the single battery 211 can be attached to the single battery 211, so that the battery array 21 can be fixed in the first direction X by the two first fixing portions 111 of the two first fixing frames 11 at the two ends of the battery array 21.

The first and second subsidiary cylindrical surfaces 1114 and 1115 in the present exemplary embodiment are provided on the first baffle 1112, and therefore the thickness of the first and second subsidiary cylindrical surfaces 1114 and 1115 in the third direction Z in the present exemplary embodiment is smaller than the thickness of the first and second subsidiary cylindrical surfaces 1114 and 1115 in the previous exemplary embodiment.

The first fixing portion 111 may be provided with a groove 1113, and the first fixing plate 1111 and the first baffle 1112 may be provided with a groove 1113. The protruding end 31 of the heat exchange plate 3 is clamped in the groove 1113, so that the heat exchange plate 3 can be fixed by the first fixing portion 111 or the first fixing plate 1111 and the first baffle 1112.

And heat transfer board 3 and connecting pipe 4's hookup location sets up the one side that deviates from battery row 21 at first fixed part 111 or first fixed plate 1111 for first fixed part 111 or first fixed plate 1111 can keep apart battery cell 211 and connecting pipe 4, take place the fracture at the connecting pipe 4 with heat transfer board 3's connecting portion, reveal under heat transfer medium's the condition, avoid heat transfer medium to battery cell 211, lead to taking place the short circuit between the battery cell 211, and the safety performance is improved.

In the present exemplary embodiment, the stopper portion 112 is disposed on a side of the first fixing portion 111 facing away from the battery row 21, and the stopper portion 112 may be disposed on a side of the first fixing plate 1111 facing away from the battery row 21; and the limiting part 112 is disposed on one side of the connecting pipe 4 close to the bottom plate 51, that is, the limiting part 112 is disposed between the connecting pipe 4 and the bottom plate 51. The distance between one surface of the stopper 112 close to the connection pipe 4 and the connection pipe 4 is not less than 0.5mm and not more than 20mm, and may be, for example, 1mm, 3mm, 5.5mm, 8mm, 9.4mm, 13mm, 15.2mm, 16.7mm, 18.2mm, 19.7mm, or the like.

One surface of the limiting part 112 close to the connecting pipe 4 is set to be an arc surface, for example, it may be a cylindrical surface, an elliptic cylindrical surface, a parabolic cylindrical surface, etc.; moreover, one surface of the limiting part 112 close to the connecting pipe 4 is concave towards the side away from the connecting pipe 4; because the connecting pipe 4 generally sets up to cylindrical, so set up for the distance between the spacing portion 112 and the partial lateral wall that the connecting pipe 4 is close to spacing portion 112 is the same basically, makes spacing portion 112 can carry out even spacing to connecting pipe 4, avoids that the distance difference between each point that the connecting pipe 4 is close to the partial lateral wall of spacing portion 112 and spacing portion 112 is great, can't reach and carry out even spacing purpose to connecting pipe 4. Moreover, when the limit portion 112 limits the connection pipe 4, the contact area between the limit portion 112 and the connection pipe 4 is large, so that the collision strength of the connection pipe 4 is reduced, and the connection pipe 4 is buffered to a certain extent.

Moreover, the height of the face of the limiting portion 112 close to the connecting pipe 4 in the third direction Z is reduced along with the increase of the distance from the single battery 211, namely, the face of the limiting portion 112 close to the connecting pipe 4 is inclined, and the face starts to incline to the bottom plate 51 from the side close to the single battery 211, so as to be arranged, even if the connecting pipe 4 arranged opposite to the limiting portion 112 is cracked, and under the condition of leaking the heat exchange medium, the heat exchange medium can flow to the side away from the single battery 211 along with the flow direction of the limiting portion 112, further avoiding the heat exchange medium from flowing to the single battery 211, causing a short circuit between the single batteries 211, and improving the safety performance.

In addition, the one side that spacing portion 112 is close to connecting pipe 4 is sunken to one side that is kept away from connecting pipe 4, make spacing portion 112 and battery box 5's frame 52 be formed with accommodation space, take place the fracture at connecting pipe 4, reveal under the condition of heat transfer medium, heat transfer medium can be deposited to accommodation space between spacing portion 112 and the battery box 5, avoid nowhere to deposit heat transfer medium, press heat transfer medium to between the battery cell 211 under the pressure effect, avoid taking place the short circuit between the battery cell 211, the security performance is improved.

Further, at least part of the limiting part 112 is arranged opposite to the first pipeline 41, the battery device can be subjected to frequent vibration in the using process, the first pipeline 41 is arranged to be a hose, and the first pipeline 41 can absorb most of the vibration, so that the connection failure (cracking) between the connecting pipe 4 and the heat exchange plate 3 is avoided; however, after the first pipeline 41 absorbs the vibration, the vibration amplitude of the first pipeline 41 is increased, and the limit portion 112 can limit the vibration amplitude of the first pipeline 41, so as to avoid the vibration amplitude of the first pipeline 41 being too large, thereby avoiding the first pipeline 41 from generating a pulling force on the second pipeline 42, which leads to the connection failure (cracking) between the connection pipe 4 and the heat exchange plate 3; thereby avoiding the heat exchange medium from flowing into the battery box 5, resulting in short circuit between the single batteries 211 and causing safety accidents. Moreover, the second pipe 42 with higher hardness is prevented from colliding with the first fixing frame 11, so that the lower one of the two is deformed, and the second pipe 42 or the first fixing frame 11 is difficult to recover after being deformed, and the first pipe 41 is easy to recover after being deformed.

In the present exemplary embodiment, referring to fig. 1, 5 and 6, the battery device may further include a second fixing frame 12, the second fixing frame 12 is disposed on at least one side of the battery pack in the second direction Y, the second fixing frame 12 is disposed on two opposite sides of the two outermost battery rows 21 in the second direction Y, and the second fixing frame 12 abuts against the two outermost battery rows 21.

Referring to fig. 1 and 5, one surface of the second fixing frame 12 close to the battery pack is configured to be in a shape matched with the single battery 211, and one surface of the second fixing frame 12 close to the battery pack is attached to the single battery 211; specifically, one surface of the second fixing frame 12 close to the battery pack includes a plurality of second cylindrical surfaces 123, and one second cylindrical surface 123 abuts against one single battery 211, so that the battery row 21 can be fixed in the second direction Y by two second fixing frames 12 on two sides of the second direction Y, and a part of the second fixing frame 12 extends into between two adjacent single batteries 211, and the fixing is relatively firm.

Of course, in other example embodiments of the present disclosure, as shown in fig. 6, the second fixing frame 12 may include a second fixing plate 121 and a second blocking plate 122, one side of the second fixing plate 121 is fixed to the base plate 51, and the second fixing plate 121 is disposed perpendicular to the base plate 51. The second baffle 122 is fixed on a side of the second fixing plate 121 facing away from the bottom plate 51, and the second baffle 122 is substantially parallel to the bottom plate 51, i.e. the second baffle 122 is arranged perpendicular to the second fixing plate 121. A side of second baffle 122 that is close to battery cell 211 sets up to the shape with battery cell 211 looks adaptation, because battery cell 211 is the cylinder battery, consequently, a side that is close to battery cell 211 of second baffle 122 includes a plurality of second cylindrical surfaces 123, a second cylindrical surface 123 supports with battery cell 211 and leans on, thereby two second mounts 12 through second direction Y both sides can be with the battery row 21 fixed on second direction Y, and partly stretch into between two adjacent battery cells 211 of second baffle 122, make fixedly comparatively firm.

In addition, an insulating mat 6 is provided in the first gap 22 between two adjacent battery rows 21 where the heat exchange plate 3 is not provided, and the two battery rows 21 on both sides thereof can be insulated and isolated by the insulating mat 6.

It should be noted that, the terms "parallel" and "perpendicular" in this application are not completely parallel or perpendicular, but have a certain error; for example, the angle between the two is equal to or greater than 0 ° and equal to or less than 5 °, i.e. the two are considered to be parallel to each other; the included angle between the two is more than or equal to 85 degrees and less than or equal to 95 degrees, namely the two are considered to be mutually perpendicular.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (15)

1. The utility model provides a fixed frame of battery locates at least one side of group battery, the group battery includes a plurality of battery cells, be provided with the heat transfer board between the battery cell, be connected with the connecting pipe on the heat transfer board, its characterized in that, the fixed frame of battery includes:

the first fixing frame is arranged on at least one side of the first direction of the battery pack, one side, close to the connecting pipe, of the first fixing frame comprises a limiting portion, and the limiting portion is used for limiting the connecting pipe.

2. The battery fixing frame according to claim 1, wherein the first fixing frame is used for fixing the battery pack in the first direction, and the connecting pipe is located on a side of the first fixing frame facing away from the battery pack.

3. The battery fixing frame according to claim 1, wherein one surface of the stopper portion, which is close to the connection pipe, is provided as an arc surface, and is recessed toward a side away from the connection pipe.

4. The battery fixing frame according to claim 1, wherein a height of one surface of the stopper portion, which is close to the connection pipe, in a third direction perpendicular to a bottom plate of the battery box is reduced as a distance from the battery pack increases.

5. The battery fixing frame according to claim 1, wherein a distance between one surface of the stopper portion, which is close to the connection pipe, and the connection pipe is not less than 0.5mm and not more than 20mm.

6. The battery fixing frame according to claim 1, wherein the first fixing frame further comprises:

the first fixing part is provided with a groove, one part of the heat exchange plate is clamped in the groove, and the limiting part is positioned on one side, away from the battery pack, of the first fixing part.

7. The battery fixing frame according to claim 6, wherein one surface of the first fixing portion, which is close to the battery pack, is provided in a shape that is fitted to at least two of the unit batteries, and the one surface of the first fixing portion, which is close to the battery pack, is attached to at least two of the unit batteries.

8. The battery fixing frame according to claim 7, wherein the first fixing portion includes:

the first fixing plate is fixed on a bottom plate of the battery box and is intersected with the bottom plate;

one side of the first baffle is fixed on the first fixing plate and is arranged in parallel with the bottom plate, one surface, close to the battery pack, of the first baffle comprises at least two first cylindrical surfaces, and the first cylindrical surfaces are attached to the single batteries in a one-to-one correspondence mode.

9. The battery fixing frame according to claim 1, further comprising:

the second mount is located at least one side of the second direction of group battery, the second mount is used for fixing in the second direction the group battery, the second mount is close to the one side of group battery set up into with the shape of battery cell looks adaptation, the second mount is close to the one side of group battery with the battery cell laminating.

10. The battery fixing frame according to claim 9, wherein the second fixing frame includes:

the second fixing plate is fixed on the bottom plate of the battery box and is intersected with the bottom plate;

one side of the second baffle is fixed on the second fixing plate and is parallel to the bottom plate, one surface, close to the battery pack, of the second baffle comprises a plurality of second cylindrical surfaces, and the second cylindrical surfaces are correspondingly attached to the single batteries one to one.

11. A battery device, comprising:

the battery pack comprises a plurality of single batteries, at least two battery rows are arranged along a first direction, and a first gap is arranged between every two adjacent battery rows;

a heat exchange plate disposed in the first gap, the heat exchange plate including a protruding end portion protruding from the battery row in the first direction;

a connection pipe connected to the protruding end portion;

a battery fixing frame provided on at least one side of the battery pack, the battery fixing frame according to any one of claims 1 to 10.

12. The battery device of claim 11, further comprising:

the battery box comprises a bottom plate, the single batteries are fixed on the bottom plate, and the limiting part is arranged on one side, close to the bottom plate, of the connecting pipe.

13. The battery device according to claim 11, wherein the connection pipe is connected between two adjacent heat exchange plates, and the connection pipe comprises:

the first pipeline is arranged as a hose;

the second pipelines are set to be hard pipes, the number of the second pipelines is two, the second pipelines are correspondingly connected with the two adjacent heat exchange plates, and the first pipelines are connected between the two adjacent second pipelines.

14. The battery device according to claim 13, wherein at least a part of the stopper portion is disposed opposite to the first duct.

15. The battery device of claim 11, further comprising:

the battery pack comprises at least two battery units, each battery unit comprises two adjacent battery rows, the heat exchange plates are arranged in the first gaps between the two adjacent battery rows belonging to the same battery unit, and the connecting pipes are connected between the two adjacent heat exchange plates.

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