CN220106800U - Battery pack - Google Patents

Abstract

The utility model relates to the technical field of batteries and discloses a battery pack, which comprises a battery box, a first isolation beam, a second isolation beam, a first bracket, a second bracket, a battery control system and a wire harness; the battery box comprises a bottom plate; the first isolation beam is arranged in the battery box and extends along a first direction; the second isolation beam is arranged in the battery box and extends along a second direction, and the first direction is intersected with the second direction; the first support is fixed on the first isolation, extends along the first direction and is provided with at least two fixed positions; the second bracket is fixed on the second isolation beam; the battery control system is fixed on one side of the first bracket, which is away from the bottom plate; the wire harness is electrically connected to the battery control system and is fixed to one side of the second bracket, which is away from the bottom plate. The battery control system and the wire harness of the battery pack are fixed firmly.

Description

Battery pack

Technical Field

The disclosure relates to the technical field of batteries, and in particular relates to a battery pack.

Background

Currently, a battery pack may include a battery control system and a wire harness, the battery control system is electrically connected with the wire harness, the wire harness is electrically connected to a battery pack, and a bracket for mounting the battery control system and the wire harness forms a linear structure, resulting in unstable fixation of the battery control system and the wire harness.

It should be noted that the information disclosed in the above background section is only for enhancing 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.

Disclosure of Invention

The present disclosure aims to overcome the disadvantage of unstable fixation of the battery control system and the wire harness in the related art, and provide a battery pack with relatively stable fixation of the battery control system and the wire harness.

According to one aspect of the present disclosure, there is provided a battery pack including:

a battery box including a bottom plate;

the first isolation beam is arranged in the battery box and extends along a first direction;

at least two second isolation beams which are arranged in the battery box and extend along a second direction, wherein the first direction is intersected with the second direction;

the first bracket is fixed on the first isolation beam, extends along the first direction and is provided with at least two fixed positions;

the second bracket is fixed on the second isolation beam;

the battery control system is fixed on one side of the first bracket, which is away from the bottom plate;

and the wire harness is electrically connected with the battery control system and is fixed on one side of the second bracket, which is away from the bottom plate.

According to the battery pack, on one hand, the battery control system and the wire harness are respectively fixed on the first bracket and the second bracket, so that unstable fixation of the battery control system and the wire harness caused by failure of one bracket is avoided; the first support and the second support are respectively fixed on the first isolation beam and the second isolation beam, so that the unstable fixation of the battery control system and the wire harness caused by the failure of one of the isolation beams is avoided. On the other hand, the first support is provided with at least two fixed positions, and the second support is fixed in the second isolation beam, so that the first support and the second support are provided with at least three fixed positions, and a plane fixed structure is formed, and compared with the fixed positions of at least two linear structures formed on only one support, the fixed strength of the first support and the second support can be improved, so that the stability of the battery control system and the wire harness fixation is improved.

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 disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a schematic structural view of an example embodiment of a battery pack of the present disclosure.

Fig. 2 is a partial schematic view of a three-dimensional structure of an exemplary embodiment of a battery pack of the present disclosure.

Fig. 3 is a schematic structural view of the second bracket in fig. 1.

Fig. 4 is a schematic structural view of the first bracket in fig. 1.

Reference numerals illustrate:

1. a battery box; 11. a bottom plate; 12. a side frame;

2. a first isolation beam; 3. a second isolation beam;

4. a first bracket; 41. a first support plate; 42. a fourth fixing portion; 43. a fifth fixing portion; 44. a sixth fixing portion;

5. a second bracket; 51. a second support plate; 5a, a fixing part;

52. a first fixing portion; 521. a first connection plate; 522. a first fixing plate;

53. a second fixing portion; 531. a second connecting plate; 532. a second fixing plate;

54. a third fixing portion; 541. a third connecting plate; 542. a third fixing plate;

55. a harness adapter; 551. a first adapter plate; 552. a second adapter plate; 553. a third adapter plate; 56. a harness fixing portion; 57. a first fixing member;

6. a battery control system;

7. a wire harness; 71. a main body portion; 72. a branch line;

8. a battery pack; 9. an insulating structure;

x, a first direction; y, second direction.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many 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 the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof 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" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. 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 through another structure.

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

In the present utility model, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium. "and/or" is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

The present disclosure provides a battery pack, which may include a battery box 1, a first isolation beam 2, a second isolation beam 3, a first bracket 4, a second bracket 5, a battery control system 6, and a wire harness 7, as shown with reference to fig. 1 to 4; the battery case 1 may include a bottom plate 11; the first isolation beam 2 is arranged in the battery box 1 and extends along a first direction X; the second isolation beam 3 is arranged in the battery box 1 and extends along a second direction Y, and the first direction X is intersected with the second direction Y; the first bracket 4 is fixed on the first isolation beam 2, the first bracket 4 extends along the first direction X, and the first bracket 4 is provided with at least two fixed positions; the second bracket 5 is fixed on the second isolation beam 3; the battery control system 6 is fixed on one side of the first bracket 4 away from the bottom plate 11; the wire harness 7 is electrically connected to the battery control system 6 and is fixed to a side of the second bracket 5 facing away from the bottom plate 11.

According to the battery pack disclosed by the utility model, on one hand, the battery control system 6 and the wire harness 7 are respectively fixed on the first bracket 4 and the second bracket 5, so that the unstable fixation of the battery control system 6 and the wire harness 7 caused by the failure of one bracket is avoided; the first bracket 4 and the second bracket 5 are respectively fixed on the first isolation beam 2 and the second isolation beam 3, so that the unstable fixation of the battery control system 6 and the wire harness 7 caused by the failure of one isolation beam is avoided. On the other hand, the first bracket 4 is provided with at least two fixing positions, and the second bracket 5 is fixed to the second isolation beam 3, so that the first bracket 4 and the second bracket 5 are provided with at least three fixing positions, and a planar fixing structure is formed, and the fixing strength of the first bracket 4 and the second bracket 5 can be improved relative to the fixing positions where at least two linear structures are formed on only one bracket, thereby improving the fixing stability of the battery control system 6 and the wire harness 7.

In the present exemplary embodiment, referring to fig. 1, the battery case 1 may be provided in a rectangular parallelepiped structure. Specifically, the battery case 1 may include a bottom plate 11, a protective cover (not shown in the drawings), and side frames 12, and the bottom plate 11 and the protective cover may be provided in a rectangular shape. The side frames 12 may include two first side frames and two second side frames, the two first side frames and the two second side frames are disposed around the bottom plate 11, the two first side frames and the two second side frames are connected end to form a rectangular frame, the first side frames extend along the first direction X, the second side frames extend along the second direction Y, and a protective cover is disposed on the opposite side of the two first side frames and the two second side frames opposite to the bottom plate 11, so that the protective cover is disposed opposite to the bottom plate 11, and the two first side frames and the two second side frames are connected between the protective cover and the bottom plate 11. The bottom plate 11, the protective cover, the two first side frames and the two second side frames surround the accommodation chamber forming the battery case 1.

Of course, in other example embodiments of the present disclosure, the bottom plate 11 and the protective cover may be provided in a circular shape, an oval shape, a trapezoid shape, etc., and the side frames 12 may be provided in one or more and formed around the circular shape, the oval shape, the trapezoid shape, etc., such that the battery case 1 is formed in a cylindrical shape, an oval cylindrical shape, a prismatic shape, etc. The battery case 1 may have other shapes, and will not be described in detail herein. Further, the battery box 1 may not include a protective cover, for example, in the case where a plurality of battery packs are stacked one above another, the battery pack located below may not be provided with a protective cover, and only the battery pack located uppermost may be provided with a protective cover, and the bottom plate 11 of the upper battery pack may serve as the protective cover of the lower battery pack; or the battery box 1 is directly assembled to the chassis of the automobile.

In the present exemplary embodiment, a first isolation beam 2 and a second isolation beam 3 are provided in the accommodation chamber, the first isolation beam 2 extending in a first direction X, the second isolation beam 3 extending in a second direction Y intersecting the first direction X, in particular, the second direction Y may be perpendicular to the first direction X. The receiving space can be divided by the first separating beam 2 into at least two sub-receiving spaces, in one of which a battery pack 8 is arranged.

The first isolation beam 2 and the second isolation beam 3 are both arranged in a hollow structure, namely, the first isolation beam 2 is provided with a cavity, and the cavity of the first isolation beam 2 extends along the first direction X; the second spacer beam 3 also has a cavity, the cavity of the second spacer beam 3 extending in the second direction Y; the first and second isolation beams 2 and 3 are made lighter in weight to increase the energy density of the battery pack; but also the structural strength of the first and second isolating beams 2 and 3 can be ensured to ensure the overall structural strength of the battery case 1.

Also provided within the BATTERY box 1 is a BATTERY control system 6, which may include a BMS (BATTERY MANAGEMENT SYSTEM ) assembly and a BDU (Battery Disconnect Unit, BATTERY pack disconnection unit). BMS is the tie between battery and the user, can intelligent management and maintain each group battery 8, prevents that the battery from appearing overcharging and overdischarging, prolongs the life of battery, monitors the state of battery, mainly just in order to can improve the utilization ratio of battery. The BDU is specially designed for the inside of the battery pack and is also a high-voltage distribution box.

The battery control system 6 may also measure the voltage, current, and temperature of the battery cells. Therefore, a wire harness 7 is further provided in the battery box 1, the wire harness 7 including a plurality of wires, one end of each wire being connected to the battery control system 6, the other end of one part of the wires being connected to the temperature sensor for measuring the temperature of the unit battery, the other end of the other part of the wires being connected to the battery post of the unit battery for measuring the voltage and current of the unit battery. Of course, the wires have other functions, which are not described in detail herein.

Therefore, the battery control system 6 and the wire harness 7 are fixed, so that the battery pack is prevented from being broken due to disconnection of the battery control system 6 and the wire harness 7 caused by vibration after the battery pack is vibrated in the use process.

In the present exemplary embodiment, a first bracket 4 is further provided in the battery box 1, the first bracket 4 is fixed to the first isolation beam 2, the first bracket 4 extends in the first direction X, and the first bracket 4 may be provided with at least two fixing positions; the battery control system 6 is fixed to the side of said first support 4 facing away from the bottom plate 11, i.e. the battery control system 6 is fixed above the first support 4.

A second bracket 5 is further arranged in the battery box 1, the second bracket 5 is fixed on the second isolation beam 3, the wire harness 7 is electrically connected to the battery control system 6 and is fixed on one side of the second bracket 5 away from the bottom plate 11, namely, the wire harness 7 is fixed above the second bracket 5.

The battery control system 6 and the wire harness 7 are respectively fixed on the first bracket 4 and the second bracket 5, so that the unstable fixation of the battery control system 6 and the wire harness 7 caused by the failure of one bracket is avoided, for example, if the first bracket 4 fails, the wire harness 7 can be fixed through the second bracket 5, and the wire harness 7 is connected with the battery control system 6, so that a certain fixing effect is also provided for the battery control system 6; similarly, if the second bracket 5 fails, the battery control system 6 can be fixed by the first bracket 4, and the wire harness 7 is connected with the battery control system 6, so that a certain fixing effect is also provided for the wire harness 7.

Furthermore, the first bracket 4 and the second bracket 5 are respectively fixed on the first isolation beam 2 and the second isolation beam 3, so that the unstable fixation of the battery control system 6 and the wire harness 7 caused by the failure of one isolation beam is avoided, for example, if the first isolation beam 2 fails, the second bracket 5 and the wire harness 7 can be fixed through the second isolation beam 3, and the wire harness 7 is connected with the battery control system 6, so that a certain fixing effect is also provided for the battery control system 6; similarly, if the second isolating beam 3 fails, the first bracket 4 and the battery control system 6 can be fixed by the first isolating beam 2, and the wire harness 7 is connected with the battery control system 6, so that a certain fixing effect is also provided for the wire harness 7.

Moreover, the first bracket 4 is provided with at least two fixing positions, and then the first bracket 4 and the second bracket 5 are provided with at least three fixing positions to form a planar fixing structure, and the fixing strength of the first bracket 4 and the second bracket 5 can be improved relative to the fixing positions where at least two linear structures are formed on only one bracket, thereby improving the fixing stability of the battery control system 6 and the wire harness 7.

The second brackets 5 are fixed to the side of the at least two second separation beams 3 facing away from the bottom plate 11, i.e. the second brackets 5 are fixed above the at least two second separation beams 3 such that the second brackets 5 have at least two fixing positions, the second brackets 5 extending in the first direction X. Of course, in other example embodiments of the present disclosure, the second bracket 5 may be fixed to a side of the second isolation beam 3; the second bracket 5 may also be fixed to a side of a second spacer beam 3 facing away from the bottom plate 11, in which case the second bracket 5 may extend in the second direction Y.

Referring to fig. 3, in the present exemplary embodiment, the second bracket 5 may include a second support plate 51 and at least two fixing portions 5a; the second support plate 51 is provided as an elongated flat plate, and the second support plate 51 has a first end portion and a second end portion that are disposed opposite to each other in the first direction X. Also, a recess is provided on the second support plate 51 to increase the strength of the second support plate 51 so that the first support plate 41 is sufficient to support the wire harness 7.

At least two fixing portions 5a are connected to at least the first end portion and the second end portion of the second support plate 51. For example, the at least two fixing portions 5a may include a first fixing portion 52 and a second fixing portion 53. The second isolation beams 3 are provided in two, the first fixing portion 52 is fixed to one of the second isolation beams 3, and the second fixing portion 53 is fixed to the other second isolation beam 3.

The first fixing portion 52 is connected to the first end of the second support plate 51, the first fixing portion 52 may include a first connection plate 521 and a first fixing plate 522, one end of the first connection plate 521 is connected to the first end of the second support plate 51, the first connection plate 521 is disposed perpendicular to the second support plate 51, the first connection plate 521 extends toward the bottom plate 11, the first fixing plate 522 is connected to the opposite end of the first connection plate 521, the first fixing plate 522 extends toward the side away from the second support plate 51, a through hole is provided in the first fixing plate 522, and the first fixing plate 522 is fixed to the side of the second isolation beam 3 away from the bottom plate 11.

The second fixing portion 53 is connected to the second end portion of the second support plate 51, the second fixing portion 53 may include a second connection plate 531 and a second fixing plate 532, one end of the second connection plate 531 is connected to the second end portion of the second support plate 51, the second connection plate 531 is perpendicular to the second support plate 51, the second connection plate 531 extends toward the bottom plate 11, the second fixing plate 532 is connected to the opposite end of the second connection plate 531, the second fixing plate 532 extends toward the side away from the second support plate 51, a through hole is provided in the second fixing plate 532, and the second fixing plate 532 is fixed to the side of the second isolation beam 3 away from the bottom plate 11.

The first fixing portion 52 and the second fixing portion 53 are offset, for example, the first fixing portion 52 extends along the first direction X, and the second fixing portion 53 extends along the second direction Y; specifically, the first connecting plate 521 is connected to one side of the first end portion of the second support plate 51 in the first direction X, and the first fixing plate 522 extends along the first direction X toward a side facing away from the second support plate 51; the second connection plate 531 is connected to one side of the second end portion of the second support plate 51 in the second direction Y, and the second fixing plate 532 extends in the second direction Y away from the second support plate 51.

Of course, in other example embodiments of the present disclosure, the first fixing portion 52 may be disposed at a side of the first end portion of the second support plate 51 near the first bracket 4, and the second fixing portion 53 may be disposed at a side of the second end portion of the second support plate 51 far from the first bracket 4, and the first fixing portion 52 and the second fixing portion 53 may be offset.

So set up for two fixed positions of second support 5 deviate from the axis of second support 5, and second support 5 can resist the moment of torsion, improves the fixed stability of second support 5, and then improves the fixed stability of battery control system 6 and pencil 7.

In this example embodiment, the second bracket 5 may further include a third fixing portion 54, the third fixing portion 54 is connected to the second support plate 51, and the third fixing portion 54 is located between the first fixing portion 52 and the second fixing portion 53, the third fixing portion 54 may include a third connection plate 541 and a third fixing plate 542, one end of the third connection plate 541 is connected to the second support plate 51, the third connection plate 541 is disposed perpendicular to the second support plate 51, and the third connection plate 541 extends toward the bottom plate 11 side, the third fixing plate 542 is connected to the opposite end of the third connection plate 541, the third fixing plate 542 extends in the second direction Y, a through hole is provided in the third fixing plate 542, and the third fixing plate 542 is fixed to the side of the second partition beam 3 facing away from the bottom plate 11.

The third fixing portion 54 may be disposed at a middle portion of the second support plate 51 in the second direction Y.

The third fixing portion 54 may be offset from the first fixing portion 52, and the specific structures of the first fixing portion 52 and the second fixing portion 53 have been described in detail above, so that details are not repeated here; the third connection plate 541 is connected to a side of the second support plate 51 in the second direction Y, and the third fixing plate 542 extends away from the second support plate 51 in the second direction Y.

In other example embodiments of the present disclosure, the third fixing portion 54 may be disposed offset from both the first fixing portion 52 and the second fixing portion 53. The specific structures of the first fixing portion 52 and the second fixing portion 53 have been described in detail above, and thus, will not be described here again; the third connection plate 541 is connected to a side of the second support plate 51 facing away from the second fixing portion 53 in the second direction Y, and the third fixing plate 542 extends in the second direction Y toward a side facing away from the second support plate 51.

So set up make first fixed part 52, second fixed part 53 and the fixed structure of third fixed part 54 three formation triangle-shaped, further guarantee the fixed stability of second support 5, and then further guarantee the fixed stability of battery control system 6 and pencil 7.

Of course, in other example embodiments of the present disclosure, more fixing portions 5a may be provided.

In the first direction X, the interval between the adjacent two fixing portions 5a is 200 mm or more and 540 mm or less, for example, the interval between the adjacent two fixing portions 5a may be 220 mm, 250 mm, 270 mm, 300 mm, 330 mm, 350 mm, 380 mm, 400 mm, 420 mm, 450 mm, 470 mm, 500 mm, 520 mm, or the like.

If the interval between two adjacent fixing parts 5a is too large, the length of the second bracket 5 is too long, and the second bracket occupies more space inside the battery box 1, which is not beneficial to improving the space utilization rate. If the distance between the adjacent two fixing portions 5a is too small, the effect of the offset adjacent two fixing portions 5a against the torque is not significant.

The numerical range is beneficial to improving the space utilization rate in the battery box 1 and has obvious torque resistance effect.

The distance between two adjacent fixing portions 5a refers to the distance of the gap between two adjacent fixing portions 5a, for example, the distance between the first fixing portion 52 and the third fixing portion 54 refers to the distance between the edge of the first fixing portion 52 near the third fixing portion 54 and the edge of the third fixing portion 54 near the first fixing portion 52.

Further, referring to fig. 1 to 3, the second bracket 5 may further include a harness adapter 55, and the harness adapter 55 may be provided in a zigzag shape. Specifically, the harness adapter 55 may include a first adapter plate 551, a second adapter plate 552, and a third adapter plate 553; the second interposer 552 is connected between the first interposer 551 and the third interposer 553; the first and third adapter plates 551 and 553 may be parallel to the second support plate 51, and the second adapter plate 552 may be perpendicular to the second support plate 51; and the first adapter plate 551 and the third adapter plate 553 extend to opposite sides of the second adapter plate 552. Of course, the second adapter plate 552 may be disposed at a set acute angle to the second support plate 51 instead of being perpendicular.

Of course, the structure of the wire harness adapter 55 is not limited to the above description, and for example, the wire harness adapter 55 may not include the second adapter plate 552 and the third adapter plate 553, i.e., the wire harness adapter 55 may be provided in a flat plate structure including only the first adapter plate 551. In this case, the first adapter plate 551 may be directly welded to the second support plate 51.

The wire harness adapter 55 is connected to the first fixing portion 52, specifically, a through hole is provided in the first adapter plate 551, and the first fixing member 57 sequentially penetrates through the through hole in the first adapter plate 551 of the wire harness adapter 55 and the through hole in the first fixing plate 522 of the first fixing portion 52, and is screwed into the threaded hole in the second insulating beam 3, thereby simultaneously fixing the wire harness adapter 55 and the first fixing portion 52 by the first fixing member 57. The first fixing member 57 may be a bolt.

In addition, in some example embodiments of the present disclosure, the first adapter plate 551 of the wire harness adapter 55 may be fixed to the first fixing plate 522 of the first fixing portion 52 by welding. The first fixing plate 522 is then fixed to the second partition beam 3 by the first fixing members 57. And the first fixing member 57 may be a rivet or the like.

The extending direction of the harness adapter 55 intersects with the extending direction of the second bracket 5. In the present exemplary embodiment, the wire harness adapter 55 extends along the second direction Y, that is, the extending direction of the wire harness adapter 55 coincides with the extending direction of the second separation beam 3. Of course, the extending direction of the wire harness adapter 55 may be slightly deviated from the extending direction of the second separation beam 3.

The wire harness 7 may include a main body portion 71 and branch lines 72, the branch lines 72 being offset from the main body portion 71 of the wire harness 7, but the branch lines 72 also need to be fixedly supported, if the branch lines 72 are also fixedly supported by the second support plate 51, so that the area of the second support plate 51 needs to be set larger, the internal space of the battery box 1 is occupied, which is unfavorable for improving the space utilization, and the weight of the second support plate 51 is heavier, which is unfavorable for improving the energy density of the battery pack.

In the present exemplary embodiment, the wire harness adapter 55 protrudes from the second support plate 51 in the second direction Y, and the wire harness adapter 55 is used to fix the branch line 72 of the wire harness 7. The harness adapter 55 protruding from the second support plate 51 in the second direction Y can achieve the effect of fixedly supporting the branch line 72 of the main body portion 71 of the deviated wire harness 7 without providing the second support plate 51 to be large, thereby ensuring the utilization of the internal space of the battery case 1 and the energy density of the battery pack.

Referring to fig. 1 and 2, the second bracket 5 may further include a wire harness fixing portion 56, the wire harness fixing portion 56 may be provided in a ring shape, the wire harness fixing portion 56 may be provided in plurality, a portion of the wire harness fixing portion 56 is fixed to a surface of the second support plate 51 facing away from the bottom plate 11, and the main body portion 71 of the wire harness 7 is inserted into the wire harness fixing portion 56. The other part of the harness fixing portion 56 is fixed to a surface of the harness adapter 55 facing away from the base plate 11, and the branch line 72 of the harness 7 is inserted into the harness fixing portion 56. The main body portion 71 and the branch line 72 of the wire harness 7 can be fixed by the harness fixing portion 56. The harness fixing portion 56 may be fixed by screws or by welding. Of course, the harness fixing portion 56 may be provided as a clip structure or a snap structure or the like, which will not be described here.

In the present exemplary embodiment, the first bracket 4 is fixed to the side of the first isolating beam 2 facing away from the bottom plate 11, i.e. the first bracket 4 is fixed above the first isolating beam 2, however, in other exemplary embodiments of the present disclosure, the first bracket 4 may be fixed to a side surface of the first isolating beam 2.

The front projection of the first bracket 4 on the bottom plate 11 at least partially overlaps the front projection of the battery pack 8 on the bottom plate 11, for example, a portion of the front projection of the first bracket 4 on the bottom plate 11 overlaps a portion of the front projection of the battery pack 8 on the bottom plate 11, so that the first bracket 4 and the battery control system 6 may occupy a space above the battery pack 8, and the first bracket 4 and the battery control system 6 may play a role in protecting the battery pack 8. Of course, in other example embodiments of the present disclosure, it is also possible that the front projection of the first bracket 4 on the bottom plate 11 is located within the front projection of the battery pack 8 on the bottom plate 11.

Moreover, the front projection of the first bracket 4 onto the bottom plate 11 at least partially overlaps the front projection of the first isolation beam 2 onto the bottom plate 11, e.g., a portion of the front projection of the first bracket 4 onto the bottom plate 11 overlaps a portion of the front projection of the first isolation beam 2 onto the bottom plate 11, such that the first bracket 4 and the battery control system 6 may occupy space above the first isolation beam 2. Of course, in other example embodiments of the present disclosure, it may be that the orthographic projection of the first bracket 4 on the bottom plate 11 is located within the orthographic projection of the first isolation beam 2 on the bottom plate 11.

The front projection of the second bracket 5 on the bottom plate 11 at least partially overlaps the front projection of the battery pack 8 on the bottom plate 11, for example, the front projection of the second bracket 5 on the bottom plate 11 may be located within the front projection of the battery pack 8 on the bottom plate 11, or a part of the front projection of the second bracket 5 on the bottom plate 11 overlaps a part of the front projection of the battery pack 8 on the bottom plate 11, so that the second bracket 5 and the wire harness 7 may occupy the space above the battery pack 8, and the second bracket 5 and the wire harness 7 may play a certain role in protecting the battery pack 8.

Further, referring to fig. 1 and 2, the battery pack may further include an insulation structure 9, where the insulation structure 9 is disposed on a side of the battery pack 8 facing away from the bottom plate 11, and the battery pack 8 may be insulated from the protective cover by the insulation structure 9. The second support 5 is abutted against one side of the insulating structure 9 away from the battery pack 8, specifically, the second support plate 51 is abutted against one side of the insulating structure 9 away from the battery pack 8; the insulation structure 9 can be further fixed through the second bracket 5, so that the fixing stability of the insulation structure 9 is improved, and the insulation effect between the battery pack 8 and the protective cover is ensured; moreover, "abutting" emphasizes the existence of a force between the two, as compared to "connected"; that is, "abutting" represents a state in which an acting force exists between the second support plate 51 and the insulating structure 9, so that the second support plate 51 is closely attached to the insulating structure 9, and the space utilization rate inside the battery box 1 is improved.

Referring to fig. 1 and 4, the first bracket 4 may include a first support plate 41, a fourth fixing portion 42, a fifth fixing portion 43, and two sixth fixing portions 44; the first support plate 41 is provided as an elongated flat plate, and the first support plate 41 has a third end portion and a fourth end portion that are disposed opposite to each other in the first direction X.

The fourth fixing portion 42 is connected to the third end portion of the first support plate 41; the fourth fixing portion 42 may include a fourth connection plate and a fourth fixing plate, one end of the fourth connection plate is connected to the third end portion of the first support plate 41, the fourth connection plate is disposed perpendicular to the first support plate 41, and the fourth connection plate extends toward the bottom plate 11, the fourth fixing plate is connected to the opposite end of the fourth connection plate, the fourth fixing plate extends toward the side away from the first support plate 41, a through hole is provided in the fourth fixing plate, and the fourth fixing plate is fixed to the side of the first isolation beam 2 away from the bottom plate 11.

The fifth fixing portion 43 is connected to the fourth end portion of the first support plate 41; the two sixth fixing portions 44 are connected to the first support plate 41 and located between the fourth fixing portion 42 and the fifth fixing portion 43, and the two sixth fixing portions 44 are symmetrically disposed.

The fifth fixing portion 43 and the sixth fixing portion 44 may have the same structure and are each provided in a zigzag shape. The fifth fixing portion 43 will be described as an example. The fifth fixing portion 43 may include a fifth fixing plate, a fifth connection plate, and a sixth fixing plate; the fifth connecting plate is connected between the fifth fixing plate and the sixth fixing plate; the fifth and sixth fixing plates may be parallel to the second support plate 51, and the fifth connection plate may be perpendicular to the second support plate 51; and the fifth fixing plate and the sixth fixing plate extend to opposite sides of the fifth connecting plate. Of course, the fifth connection plate may be disposed at a set acute angle to the second support plate 51 instead of being perpendicular.

Also, a recess is provided on the first support plate 41 to increase the strength of the first support plate 41 so that the first support plate 41 is sufficient to support the battery control system 6.

The "parallel" and "perpendicular" mentioned in the present utility model may be not only completely parallel and perpendicular, but also may have a certain error; for example, the included angle between the two is greater than or equal to 0 ° and less than or equal to 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 adaptations, 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 (13)

1. A battery pack, comprising:

a battery box including a bottom plate;

the first isolation beam is arranged in the battery box and extends along a first direction;

the second isolation beam is arranged in the battery box and extends along a second direction, and the first direction is intersected with the second direction;

the first support is fixed on the first isolation beam, extends along the first direction and is provided with at least two fixed positions;

the second bracket is fixed on the second isolation beam;

the battery control system is fixed on one side of the first bracket, which is away from the bottom plate;

and the wire harness is electrically connected with the battery control system and is fixed on one side of the second bracket, which is away from the bottom plate.

2. The battery pack of claim 1, wherein the second barrier beams are provided in at least two, the second brackets are fixed to one side of the bottom plate of at least two of the second barriers Liang Beili, and the second brackets extend in the first direction.

3. The battery pack of claim 1, wherein the second bracket comprises:

a second support plate having a first end and a second end disposed opposite to each other in the first direction;

at least two fixed parts are connected with at least the first end part and the second end part of the second supporting plate, and at least two fixed parts are arranged in an offset mode.

4. A battery pack according to claim 3, wherein at least two of the fixing portions include:

a first fixing portion connected to the first end portion of the second support plate;

a second fixing portion connected to the second end portion of the second support plate;

the first fixing portion extends along the first direction, and the second fixing portion extends along the second direction, so that the first fixing portion and the second fixing portion are arranged in a biased manner.

5. The battery pack according to claim 4, wherein at least two of the fixing portions further comprise:

the third fixing part is connected to the second supporting plate and located between the first fixing part and the second fixing part, and the third fixing part is arranged in an offset mode with the first fixing part, or the third fixing part is arranged in an offset mode with the first fixing part and the second fixing part.

6. The battery pack according to claim 3, wherein a distance between two adjacent fixing portions in the first direction is 200 mm or more and 540 mm or less.

7. The battery pack according to any one of claims 3 to 6, wherein the second bracket further comprises:

the wire harness adapter is connected to the fixing portion, the extending direction of the wire harness adapter is intersected with the extending direction of the second support, the wire harness adapter protrudes out of the second support plate in the second direction, and the wire harness adapter is used for fixing branch wires of the wire harness.

8. The battery pack of claim 7, wherein the second bracket further comprises:

and the wire harness fixing part is fixed on one surface of the second supporting plate, which is away from the bottom plate, of the wire harness adapter, and is used for fixing the wire harness.

9. The battery pack of claim 7, wherein the second bracket further comprises:

the first fixing piece sequentially penetrates through the through hole in the wire harness adapter piece and the through hole in the fixing portion, so that the wire harness adapter piece and the fixing portion are fixed at the same time.

10. The battery pack of any one of claims 1-5, wherein the first bracket is secured to a side of the first spacer beam facing away from the base plate and the second bracket is secured to a side of the second spacer Liang Beili to the base plate.

11. The battery pack of claim 10, wherein the battery pack further comprises:

the battery pack is arranged in the battery box; the front projection of the first bracket on the bottom plate at least partially overlaps with the front projection of the battery pack on the bottom plate, and the front projection of the second bracket on the bottom plate at least partially overlaps with the front projection of the battery pack on the bottom plate.

12. The battery pack of claim 11, wherein the battery pack further comprises:

the insulation structure is arranged on one side of the battery pack, which is away from the bottom plate, and the second support is abutted to one side of the insulation structure, which is away from the battery pack.

13. The battery pack of claim 2, wherein the orthographic projection of the first bracket on the base plate at least partially overlaps the orthographic projection of the first spacer beam on the base plate.