CN220856732U - Battery frame, battery package and electric motor car - Google Patents

Abstract

The utility model discloses a battery frame, which comprises a main frame, wherein the main frame comprises two side uprights and a side support frame in the embodiment mode, the side support frame is detachably and fixedly arranged between the two side uprights, the side support frame comprises a plurality of module frames, and the module frames comprise alternately stacked W-shaped module frames and inverted W-shaped module frames. Therefore, the detachable design of the side support frame solves the problems of high disassembly and assembly difficulty, poor maintainability, high manufacturing cost and high energy consumption caused by excessive reserved height of the fixedly arranged battery frame under the condition of needing a large-size and heavy-weight battery. The W-shaped or inverted W-shaped structure in the module frame can uniformly load the weight of the battery, so that the distortion of the module frame is avoided, and the stability and the service life of the battery frame are improved. In addition, the height of the side support frame is determined by the number of the stacked and spliced module frames, so that the problem that the side support frame cannot adapt to the height of a battery pack when the number of the battery packs is increased or decreased is effectively solved.

Description

Battery frame, battery package and electric motor car

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery rack, a battery pack and an electric vehicle.

Background

With the development of battery technology and electric vehicle technology, electric vehicles are increasingly widely used, and some electric vehicles are applied to mining areas as mining area trucks for heavy load operation. The electric mining truck needs to carry out heavy-load operation in the pit for a long time, has large electric energy consumption, needs to be equipped with a battery with larger capacity, and therefore needs to be provided with a battery rack with larger bearing capacity. However, the current beam-type battery rack easily causes the weight load of the battery to be concentrated in a single beam structural member and the load to be uneven, and in addition, the anti-twisting capability of the single beam structural member is also poor, so that the stability of the battery rack is poor and the service life is short.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery pack, a battery device and an electric vehicle.

The battery rack of the present utility model includes a main frame. The main frame comprises two side uprights and the side supporting frames in the embodiment, the side supporting frames are detachably and fixedly arranged between the two side uprights, each side supporting frame comprises a plurality of module frames, and each module frame comprises a W-shaped module frame and an inverted W-shaped module frame which are alternately stacked.

Among the above-mentioned battery rack, side support frame detachable design has solved the battery rack of fixed setting and has been dismantled and assembled the degree of difficulty under the condition of the big heavy battery of required load volume, maintainability is poor to and reserve high manufacturing cost height, the high scheduling problem of energy consumption that leads to when too much. The W-shaped or inverted W-shaped structure in the module frame can uniformly load the weight of the battery, so that the distortion of the module frame is avoided, and the stability and the service life of the battery frame are improved. In addition, the height of the side support frame is determined by the number of the stacked and spliced module frames, so that the problem that the side support frame cannot adapt to the height of a battery pack when the number of the battery packs is increased or decreased is effectively solved.

In some embodiments, the module frame includes a first long beam and a plurality of diagonal short beams, one ends of the plurality of diagonal short beams are fixedly connected with the first long beam, and the plurality of diagonal short beams are obliquely arranged relative to the first long beam to form a supporting surface, and two adjacent diagonal short beams are obliquely arranged.

Therefore, the module frame of the battery frame is formed by fixedly connecting the inclined support short beams and the first long cross beams, the inclined support short beams and the first long cross beams are obliquely arranged, and the adjacent inclined support short beams are obliquely arranged, so that the weight load of the battery frame can be uniformly distributed on the inclined support short beams in the module frame. Meanwhile, the inclined short support beam arranged obliquely can also effectively avoid the distortion of the module frame, so that the stability of the battery frame is improved and the service life of the battery frame is prolonged.

In some embodiments, one ends of the plurality of short diagonal support beams are fixedly connected with the first long cross beam in a welding manner, and the other ends of two adjacent short diagonal support beams are fixedly connected in a welding manner.

Therefore, the inclined support short beam and the first long beam in the module frame are connected in a welding connection mode, so that the connection strength is increased, and the structure of the module frame is more stable.

In some embodiments, two adjacent ones of the diagonal bracing stubs are at an angle of 50-60 °.

In this way, the weight load of the battery rack can be better distributed evenly over the plurality of diagonal support stubs in the module frame. Meanwhile, the torsional deformation of the module frame can be effectively avoided, and the stability and the service life of the battery frame are further improved.

In some embodiments, the module frame further comprises a mounting plate and a plurality of bolts at both ends of the first long beam, the plurality of bolts fixing the mounting plate to the side posts to detachably fix the side support frame between the two side posts.

Therefore, the bolt and the mounting fixing plate can be used for completing the detachable design of the side support frame, and compared with other mounting modes, the mounting and dismounting are more convenient, and the cost is low.

In some embodiments, the plurality of module frames are selectively secured between the two side posts to adjust the height of the side support brackets.

Therefore, the corresponding number of module frames can be selected for installation according to the height of the battery packs, the height of the side support frame can be determined by the number of the module frames which are optionally fixed between the two side stand columns, and the problem that the height cannot adapt to the battery packs with different numbers to load the battery packs to cause height change is effectively solved. In contrast, the battery rack that fixes the setting probably reserves the height of side support frame too much, leads to using too much, and more energy is consumed by can consuming in the use in the high manufacturing cost simultaneously, and the energy consumption is also high, does not environmental protection.

In some embodiments, the main frame includes a bottom frame, the two side uprights are fixed on the bottom frame, the side supporting frame further includes a plurality of vertical supporting short beams and a second long beam, one ends of the vertical supporting short beams are fixedly connected with the second long beam and the plurality of vertical supporting short beams are arranged substantially vertically relative to the second long beam, and the other ends of the vertical supporting short beams are detachably fixed on the bottom frame and the plurality of vertical supporting short beams are arranged substantially vertically relative to the bottom frame.

As described above, the bottom of the battery rack is generally provided with a circuit board, a radiator, and other elements, and a diagonal support short beam for carrying a heavy load is not required to be arranged, and the battery rack is highly fixed, so that a module frame is not required. On the other hand, because the battery pack is arranged above, the vertical support short beam mainly bears the weight load in the vertical direction, and the lateral weight load is avoided, so that the vertical support short beam is arranged vertically, and is more beneficial to bearing the weight load. And moreover, the vertical support short beam and the second long beam can provide a fixed installation space, and the module frame is fixedly connected with the bottom frame of the battery frame, so that the stability of the connection of the side support frame and the bottom frame is improved.

The battery pack of the present utility model includes the battery frame in the above embodiment and at least one battery module fixed in the battery frame.

The electric vehicle of the present utility model includes the battery pack described in the above embodiment.

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

Drawings

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

fig. 1 is a perspective view of a battery rack in an embodiment of the present utility model;

FIG. 2 is a schematic plan view of a module frame in one embodiment of the utility model;

FIG. 3 is a schematic plan view of a module frame in another embodiment of the utility model;

FIG. 4 is a schematic plan view of a side support bracket in an embodiment of the utility model;

Fig. 5 is a schematic plan view of a battery rack in an embodiment of the utility model;

Fig. 6 is a schematic plan view of an electric vehicle in an embodiment of the utility model.

Main labeling description:

The battery pack comprises a battery frame 10, a main frame 11, side uprights 12, side support frames 20, a module frame 30, a first long cross beam 31, a diagonal support short beam 32, a support surface 33, a mounting fixing plate 34, bolts 35, a bottom frame 13, a battery pack 100 and an electric vehicle 1000.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to fig. 1, a battery rack 10 of the present utility model, as shown in fig. 4, the battery rack 10 includes a main frame 11 (including only an outer rim), the main frame 11 includes two side posts 12 and a side support frame 20, the side support frame 20 is detachably and fixedly disposed between the two side posts 12, and the side support frame 20 includes a plurality of module frames 30, wherein the plurality of module frames 30 includes a W-shaped module frame and an inverted W-shaped module frame which are alternately stacked.

Specifically, the battery rack of the present application includes the side support frames 20, wherein the side support frames 20 are fixed between the two side posts 12. In order to achieve the fixing effect, the length of the longest cross member in the side support frame 20 is matched with the distance between the two side posts 12 of the main frame 11. In addition, the detachable fixing mode can solve the defects of inconvenient disassembly and assembly and high disassembly and assembly difficulty of the side support frame 20, and reduce the energy consumption of the battery frame for accommodating the battery.

Further, two kinds of module frames 30 are sequentially stacked in the side support frames 20 shown in fig. 4. In one example, from the same view, there may be 2W-shaped module frames as shown in fig. 2 and 2 inverted W-shaped module frames as shown in fig. 3 in the side support frame 20. The W-shaped module frame and the inverted W-shaped module frame form a plurality of groups of stable triangular structures in the whole side support frame 20, so that the weight load of the battery can be better and uniformly distributed on each inclined support short beam 32, and the distortion of the module frame 30 can be effectively avoided.

Thus, the detachable design of the side support frame 20 solves the problems of high disassembly and assembly difficulty, poor maintainability, high manufacturing cost, high energy consumption and the like caused by excessive reserved height of the battery frame 10 which is fixedly arranged under the condition of needing to load a large-size and heavy-weight battery. The W-shaped or inverted W-shaped structure in the module frame 30 can uniformly load the weight of the battery, avoid the distortion of the module frame 30, and improve the stability and the service life of the battery frame 10. In addition, the height of the side support frames 20 is determined by the number of the stacked and spliced module frames 30, so that the problem that the side support frames 20 cannot adapt to the height of the battery packs when the number of the battery packs is increased or decreased is effectively solved.

In some embodiments, referring to fig. 1-3, the module frame 30 includes a first long beam 31 and a plurality of diagonal short beams 32, one end of the plurality of diagonal short beams 32 is fixedly connected to the first long beam 31, the plurality of diagonal short beams 32 are inclined with respect to the first long beam 31 to form a supporting surface 33, and two adjacent diagonal short beams 32 are inclined.

In particular, two different modular frames 30 of the present utility model are shown in schematic views in fig. 2 and 3. In the two kinds of module frames 30, there is a first long beam 31, and one end of each diagonal support short beam 32 is fixedly connected to one surface of the corresponding first long beam 31, and is sequentially arranged along the extending direction of the first long beam 31 to form a supporting surface 33. One ends of two adjacent short inclined support beams 32 are fixed in contact with each other and are called fixed ends, the two short inclined support beams 32 are obliquely arranged, and a fixed included angle is formed at the fixed ends. The diagonal bracing short beams 32 are sequentially arranged along the extending direction of the first long cross beam 31 to form a W-shaped module frame as shown in fig. 2 and an inverted W-shaped module frame as shown in fig. 3, so that the weight load of the battery can be better uniformly distributed to each diagonal bracing short beam 32.

In this way, the module frame 30 of the present utility model is formed by fixedly connecting the diagonal-bracing short beams 32 with the first long cross beam 31, and a plurality of diagonal-bracing short beams 32 are obliquely arranged with the first long cross beam 31, and the adjacent diagonal-bracing short beams 32 are also obliquely arranged. In this way, the weight load of the battery rack 10 can be uniformly distributed to the plurality of diagonal support short beams 32 in the module frame 30. Meanwhile, the inclined short support beams 32 can also effectively avoid the distortion of the module frame 30, and improve the stability and the service life of the battery frame 10.

In some embodiments, one end of each of the plurality of diagonal bracing short beams 32 is fixedly connected to the first long transverse beam 31 by welding, and the other ends of two adjacent diagonal bracing short beams 32 are fixedly connected by welding.

Specifically, in the module frame 30 shown in fig. 2, one end of the diagonal brace short beam 32 is directly and fixedly connected with the first long beam 31 by welding.

In particular, for two adjacent diagonal bracing short beams 32, direct welding and fixed connection can be selected, and a connecting piece can be arranged at the connecting position. In the process of realizing the fixation of the diagonal bracing short beam 32 and the first long cross beam 31, two adjacent diagonal bracing short beams 32 are welded with the connecting piece, and the connection fixation is realized through the connecting piece. The connection piece is slightly longer than the cross-sectional length of two adjacent diagonal bracing stubs 32.

In this way, the diagonal short beams 32 and the first long beams 31 in the module frame 30 are connected by welding, so that the connection strength is increased, and the structure of the module frame 30 is more stable.

In some embodiments, adjacent two diagonal bracing stubs 32 are angled between 50-60 °.

Specifically, as shown in fig. 2 and 3, in the module frame 30, adjacent two diagonal bracing stubs 32 are disposed obliquely and one ends thereof are fixed to each other. In order to form a more stable and weight-loaded structure between the short diagonal-support beams 32 and the long cross beam 11, the included angle between the fixed ends of two adjacent short diagonal-support beams 32 may be set to 50-60 °. Under the condition that the included angle between the fixed ends of two adjacent inclined support short beams 32 is 50-60 degrees, an equilateral triangle structure is formed or formed between the inclined support short beams 32 and the long cross beam 11, and when the battery is carried, the weight load of the battery frame 10 can be uniformly distributed to a plurality of inclined support short beams 32 in the module frame 30, so that the structural stability of the battery frame 10 is strong.

In this way, the weight load of the battery rack can be better distributed evenly over the plurality of diagonal support stubs in the module frame. Meanwhile, the torsional deformation of the module frame can be effectively avoided, and the stability and the service life of the battery frame are further improved.

In some embodiments, referring to fig. 2 and 3, the module frame 30 further includes a mounting plate 34 and a plurality of bolts 35 at both ends of the first long beam 31. Referring to fig. 2, in fig. 4, a schematic view of a plurality of bolts 35 securing the mounting plate 34 to the side posts 12 is shown, the bolts 35 thus removably securing the side support frame 20 between the two side posts 12.

As shown in fig. 2 and 3, both ends of each first long beam 31 are provided with mounting fixing plates 34, and the length of the mounting fixing plates 34 is slightly longer than the length of the cross section of the first long beam 31; the width is slightly wider than the width of the cross section of the first long cross member 31 but not wider than the width of the side uprights 12. The portion of the mounting and fixing plate 34 longer than the cross-sectional area of the first long cross member 31 may be used for fixing bolts 35, and a plurality of bolts 35 fix the mounting and fixing plate 34 to the side posts 12 as shown in fig. 4, and the side support frame 20 may thus be detachably and fixedly disposed between the two side posts 12.

One possible bolt 35 position distribution on the mounting fixing plate 34, 4 angles of the cross section of the first long beam 31 correspond to 4 bolts 35, and a good fixing effect is achieved. The distribution of the bolts 35 has a certain correlation with the shape of the cross section of the first long beam 31.

Thus, the bolt 35 and the mounting fixing plate 34 can be used for completing the detachable design of the side support frame 20, and compared with other mounting modes, the mounting and dismounting are more convenient, and the cost is low.

In some embodiments, a plurality of module frames 30 may be selectively secured between the two side uprights 12 to adjust the height of the side support brackets 20.

As shown in fig. 4, 4 module frames 30 are secured between two side posts 12. The height of the side support frames 20 can be adjusted by changing the number of the module frames 30. For example, in one example, the side support frames 20, which are made up of 4 module frames 30, are adapted to the height of the battery pack held by the battery rack 10. If a battery pack is added to the battery rack 10, the capacity of the battery rack 10 needs to be expanded, the side support frames 20 composed of 4 module frames 30 cannot well adapt to the overall height of the battery pack, and a new module frame 30 needs to be added above the existing side support frames 20 so as to adapt to the new battery pack height.

In particular, in certain embodiments of the side support frames 20, the height of the individual module frames 30 is primarily determined by the length of the diagonal support stubs 32, while also being affected by the angle between the diagonal support stubs 32. The length of the diagonal support shorting beams 32 is selected to match the height of the battery pack to be carried, so as to match the height of the module frame 30 with the height of the battery pack carried by the battery rack 10. The higher the height of the battery pack, the greater the height of the individual module frame 30. In one example, assuming the height of the module frame 30 is H and the height of the battery pack is H, H and H satisfy: h+40mm is less than or equal to H and less than or equal to h+50mm.

In order to achieve the matching of the height of the module frame 30 with the height of the battery pack carried by the battery rack 10, under the condition that the length of the inclined support short beams 32 is unchanged, the height of the module frame 30 can be adjusted by randomly taking values within the range of 50-60 degrees of included angles between the inclined support short beams 32 provided in the embodiment. For example, in the case where the length of the diagonal bracing short beam 32 is unchanged, the module frame 30 is lower in height when the diagonal bracing short beam 32 is at an angle of 50 ° than when the angle is at 60 °.

In this way, the corresponding number of module frames 30 can be selected according to the height of the battery pack for installation, the height of the side support frames 20 can be determined by the number of module frames 30 which can be selectively fixed between the two side uprights 12, and the problem that the side support frames 20 cannot adapt to the change of the number of battery packs carried by the battery frame 10 is effectively solved. In contrast, the fixedly arranged battery rack 10 may excessively reserve the height of the side support frame 20, which results in excessive materials, high manufacturing cost, and high energy consumption, and is not environment-friendly.

In some embodiments, as shown in fig. 5, the main frame 11 includes a bottom frame 13, and two side posts 12 are fixed to the bottom frame 13, the side posts 12 being perpendicular to the bottom frame 13. As shown in fig. 4, the side supporting frame 20 further includes a plurality of vertical supporting short beams 21 and a second long beam 22, one end of the vertical supporting short beam 21 is fixedly connected with the second long beam 22, the plurality of vertical supporting short beams 21 are substantially vertically arranged relative to the second long beam 22, the other end of the vertical supporting short beam 21 is detachably fixed on the bottom frame 13, and the plurality of vertical supporting short beams 21 are substantially vertically arranged relative to the bottom frame 13.

Specifically, the height of the vertical support short beam 21 is determined by the components other than the battery pack that the battery rack 10 needs to hold, such as an electricity meter, a switch, a relay, and the like. That is, the battery rack bottom needs to be provided with components such as a circuit board and a radiator, and the number of vertical support stubs 21 required for supporting the load is determined by the weight of the battery pack and the components other than the battery pack required for the battery rack 10 by using the vertical support stubs 21 without disposing the diagonal support stubs 32 for supporting a heavy load.

As described above, the bottom of the battery rack is generally provided with a circuit board, a radiator, and other elements, and the module frame 30 is not required because the diagonal support short beam 32 for carrying a heavy load is not required to be disposed and the height is fixed. On the one hand, since the battery pack is disposed above, the vertical support short beam 21 mainly receives the weight load in the vertical direction, and there is no lateral weight load, so that the vertical support short beam 21 is disposed vertically, which is more advantageous to carry the weight load. Furthermore, the vertical support short beam and the second long beam can provide a fixed installation space. And the module frame 30 is fixedly connected with the bottom frame 33 of the battery frame 10, so that the stability of the connection of the side support frames 20 and the bottom frame 33 is improved.

In addition, all beam-like structures in the utility model adopt steel square tubes or square tubes, so that the strength and the bearing capacity of the battery frame 10 are ensured.

As shown in fig. 6, the battery pack 100 of the present utility model includes the battery holder 10 and at least one battery module according to the above embodiment, and the at least one battery module is fixed in the battery holder 10.

The electric vehicle 1000 of the present utility model includes the battery pack 100 in the above embodiment.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (9)

1. The battery rack (10) is characterized in that the battery rack (10) comprises a main frame (11), the main frame (11) comprises two side uprights (12) and a side support frame (20), the side support frame (20) is detachably and fixedly arranged between the two side uprights (12), the side support frame (20) comprises a plurality of module frames (30), and the module frames (30) comprise alternately stacked W-shaped module frames and inverted W-shaped module frames.

2. The battery rack (10) according to claim 1, wherein the module frame (30) comprises a first long cross beam (31) and a plurality of diagonal short beams (32), one end of each of the diagonal short beams (32) is fixedly connected with the first long cross beam (31), the diagonal short beams (32) are obliquely arranged relative to the first long cross beam (31) to form a supporting surface (33), and two adjacent diagonal short beams (32) are obliquely arranged.

3. The battery rack (10) according to claim 2, wherein one end of the plurality of diagonal short beams (32) is fixedly connected with the first long cross beam (31) by welding, and the other ends of two adjacent diagonal short beams (32) are fixedly connected by welding.

4. The battery rack (10) according to claim 2, wherein adjacent two of said diagonal support stubs (32) are angled at 50-60 °.

5. The battery rack (10) according to claim 2, wherein the module frame (30) further comprises a mounting fixing plate (34) and a plurality of bolts (35) at both ends of the first long beam (31), the plurality of bolts (35) fixing the mounting fixing plate (34) to the side posts (12) to detachably fix the side support frame (20) between the two side posts (12).

6. The battery rack (10) of claim 5, wherein the plurality of module frames (30) are selectively secured between the two side posts (12) to adjust the height of the side support brackets (20).

7. The battery rack (10) according to claim 1, wherein the main frame (11) comprises a bottom frame (13), the two side uprights (12) are fixed on the bottom frame (13), the side support frame (20) further comprises a plurality of vertical support short beams (21) and a second long cross beam (22), one end of each vertical support short beam (21) is fixedly connected with the second long cross beam (22) and the plurality of vertical support short beams (21) are arranged substantially vertically relative to the second long cross beam (22), the other end of each vertical support short beam (21) is detachably fixed on the bottom frame (13) and the plurality of vertical support short beams (21) are arranged substantially vertically relative to the bottom frame (13).

8. A battery pack (100) comprising a battery rack (10) according to any one of claims 1-7 and at least one battery module, said at least one battery module being fixed within said battery rack (10).

9. An electric vehicle characterized by comprising a battery pack (100) as claimed in claim 8.