CN213167700U - Battery package mounting structure and vehicle - Google Patents

Abstract

The present disclosure relates to the field of battery pack technology, and more particularly, to a battery pack mounting structure. The battery pack frame comprises a connecting structure and an installation beam, wherein one end of the installation beam is connected with a battery pack outer frame, one end of the connecting structure is connected with a vehicle body longitudinal beam, the other end of the installation beam is clamped between the vehicle body longitudinal beam and the other end of the connecting structure, and the installation beam is in sliding fit with the vehicle body longitudinal beam. This scheme is connected installation roof beam and automobile body longeron through setting up connection structure, can carry out under the basis fixed to installation roof beam and automobile body longeron, can also be when the vehicle receives the striking, realize the relative slip between installation roof beam and the automobile body longeron, the cooperation is by the contact pressure between installation roof beam and the automobile body longeron, can produce great frictional force and in order to carry out uninstallation and energy-absorbing to the external force impact, thereby can effectively reduce the deformation degree of battery package frame, and then play the effective protection effect to the battery package.

Description

Battery package mounting structure and vehicle

Technical Field

The present disclosure relates to the field of battery pack technology, and in particular, to a battery pack mounting structure and a vehicle.

Background

The battery in the electric automobile is used as a key part of the electric automobile, and the safety of the battery directly influences the safety performance of the whole automobile. With the increasing popularity of electric vehicles, the number of events that cause serious problems such as fire and explosion of the battery during collision is increasing. One important reason for battery ignition and explosion caused by vehicle body collision is that the battery pack structure is extruded, so that the battery core is excessively deformed, and the internal diaphragm is damaged to cause internal short circuit and ignition.

The existing technical schemes for avoiding the collision deformation of the battery cell inside the battery pack generally comprise two schemes, one scheme is to increase the strength of a longitudinal beam of a vehicle body or weld an anti-collision beam independently so as to avoid the battery pack from being extruded; the other is to increase the structural strength of the outer frame of the battery pack and avoid the internal battery core from being extruded, but the two modes can cause the increase of weight and cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a battery pack mounting structure, which includes a connecting structure and a mounting beam having one end connected to an outer frame of the battery pack, wherein the one end of the connecting structure is connected to a vehicle body longitudinal beam, the other end of the mounting beam is clamped between the vehicle body longitudinal beam and the other end of the connecting structure, and the mounting beam is in sliding fit with the vehicle body longitudinal beam.

Optionally, the mounting beam comprises a first contact surface which is arranged in an upward or downward inclined manner along the width direction of the vehicle body, the vehicle body longitudinal beam comprises a second contact surface matched with the first contact surface, and the mounting beam is in sliding fit with the second contact surface of the vehicle body longitudinal beam through the first contact surface.

Optionally, the connecting structure comprises a limiting column, and a first clamping portion and a second clamping portion which are respectively located at two ends of the limiting column, the first clamping portion is connected with the vehicle body longitudinal beam, and the second clamping portion is connected with the mounting beam.

Optionally, the limiting column includes a stud, the second clamping portion includes a bolt head disposed at one end of the stud, the first clamping portion includes a nut matched with the stud, the bolt head is connected with the mounting beam, and the nut is connected with the vehicle body longitudinal beam.

Optionally, the limiting column is in plug-in fit with the mounting beam and the vehicle body longitudinal beam;

the mounting beam comprises a strip-shaped guide hole arranged at the position corresponding to the limiting column, the guide hole extends along the direction from the vehicle body longitudinal beam to the battery pack,

or the like, or, alternatively,

the automobile body longeron is including the guiding hole of the bar that corresponds spacing post department setting, and the guiding hole extends along the battery package to the direction of automobile body longeron.

Optionally, the guide hole includes a flared hole, and the diameter of the flared hole gradually increases along the extending direction of the guide hole.

Optionally, the guiding hole further includes a limiting hole communicated with the flared hole, the limiting hole and the flared hole are sequentially arranged along the extending direction of the guiding hole, and the aperture of one end, close to the limiting hole, of the flared hole is smaller than the diameter of the limiting hole.

Optionally, the flared hole is in transitional connection with the cambered surface of the limiting hole.

Optionally, the guide hole is formed in the mounting beam, a gasket is arranged between the mounting beam and the second clamping portion, the gasket is sleeved on the limiting column, and the diameter of the gasket is larger than the maximum aperture of the guide hole.

The present disclosure also provides a vehicle including the battery pack mounting structure described above.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

this scheme is connected installation roof beam and automobile body longeron through setting up connection structure, can carry out under the basis fixed to installation roof beam and automobile body longeron, can also be when the vehicle receives the striking, realize the relative slip between installation roof beam and the automobile body longeron, the cooperation is by the contact pressure between installation roof beam and the automobile body longeron, can produce great frictional force and in order to carry out uninstallation and energy-absorbing to the external force impact, thereby can effectively reduce the deformation degree of battery package frame, and then play the effective protection effect to the battery package.

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.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of an embodiment of the present disclosure;

FIG. 2 is a schematic view of the movement of a body rail relative to a mounting rail according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a mounting beam in an embodiment of the present disclosure;

fig. 4 is a schematic position diagram of a guide hole, a through hole, and a gasket in an embodiment of the disclosure.

Wherein, 1, mounting a beam; 2. a body rail; 3. reserving a region; 4. a limiting column; 5. a first clamping portion; 6. a second clamping portion; 7. a flared hole; 8. a limiting hole; 9. and (7) a gasket.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Referring to fig. 1 and 2, the present disclosure provides a battery pack mounting structure, which includes a connecting structure and a mounting beam 1 having one end connected to an outer frame of a battery pack, where one end of the connecting structure is connected to a vehicle body longitudinal beam 2, the other end of the mounting beam 1 is clamped between the vehicle body longitudinal beam 2 and the other end of the connecting structure, and the mounting beam 1 is in sliding fit with the vehicle body longitudinal beam 2.

When a vehicle is impacted, the body side member 2 is firstly impacted by external force, the body side member 2 tends to move towards the battery pack under the action of the impact of the external force, friction force is generated between contact surfaces of the body side member 2 and the mounting beam 1 under the impact of the external force, the mounting beam 1 and the connecting structure generate friction force, and the directions of the friction force are opposite to the directions of the external force, so that the unloading effect on the external force is realized.

Meanwhile, the vehicle body longitudinal beam 2 moves oppositely relative to the mounting beam 1 under the action of external force impact, namely the vehicle body longitudinal beam 2 moves towards the reserved area 3, in the process, the mounting beam 1 also moves relative to the connecting structure, and in the process, friction force always exists, so that a good crumpling and energy absorbing effect is always achieved when the external force impact occurs.

In conclusion, the scheme is that the mounting beam 1 and the vehicle body longitudinal beam 2 are connected through the connecting structure, the mounting beam 1 and the vehicle body longitudinal beam 2 can be fixed, relative sliding between the mounting beam 1 and the vehicle body longitudinal beam 2 can be achieved when a vehicle is impacted, and the mounting beam 1 and the vehicle body longitudinal beam 2 are matched with contact pressure to generate large friction force to unload and absorb energy due to external force impact. In the process, the generated friction force is also smaller than the strength of the base material of the mounting beam 1, so that the impact energy is absorbed mainly through the deformation of the vehicle body longitudinal beam 2 and the overcoming of the friction force, the deformation of the mounting beam 1 of the battery pack is small, the deformation degree of the outer frame of the battery pack can be effectively reduced, and the effective protection effect on the battery pack is further achieved.

In the above embodiment, a reserved area 3 for the body side member 2 to move relative to the mounting member 1 is left between the outer frame of the battery pack and the body side member 2. The mounting mode of the mounting beam 1 and the vehicle body longitudinal beam 2 is optimized to achieve the effect of crumpling and energy absorption, the energy of vehicle body deformation is absorbed through the crumpling and energy absorption, and the battery cell inside the battery pack is protected from extrusion force. The concrete points are as follows:

the mounting beam 1 and the body side member 2 can be understood as being arranged or stacked in an up-and-down sequential manner, for example, the body side member 2 can be arranged on the top end of the mounting beam 1 and contacted with each other, and then the mounting beam 1 and the body side member 2 can be clamped respectively by arranging the connecting structure, and under the condition that the pressure between the mounting beam 1 and the body side member 2 is increased, the friction force between the contact surfaces of the mounting beam 1 and the body side member 2 can be increased.

When the contact surface between the mounting beam 1 and the vehicle body longitudinal beam 2 is horizontally arranged, the vehicle body longitudinal beam 2 moves in the horizontal direction relative to the mounting beam 1 when an impact occurs, and the unloading and energy dissipation effects of friction force on external force can be exerted to the maximum extent.

Through the arrangement, when the vehicle is impacted from different directions, the crumple energy absorption effect can be exerted to the greatest extent, and the vehicle body longitudinal beam 2 can be guided to the direction of the battery pack as much as possible, namely the vehicle body longitudinal beam 2 is guided to the direction of the reserved area 3.

In prior art, the common mode is that increase automobile body longeron 2's intensity or increase crashproof roof beam, because intensity increases to make when receiving external force impact, automobile body longeron 2 self deformation degree is littleer, thereby reduces the impact to the battery package frame, and then plays the effect of protection battery package, this and this scheme exist in principle differently. The prior art can understand that the battery pack is protected by directly bearing external force impact, and in the stress process, the unloading or energy absorption process of the force does not exist, and the stress is single, so that the conditions of large investment and common effect can occur.

The design of the scheme has certain ingenuity, and it is not difficult to find that the implementation does not excessively change the structures of the mounting beam 1 and the vehicle body longitudinal beam 2, and the crumple energy absorption effect is realized by changing the mounting structures of the mounting beam 1 and the vehicle body longitudinal beam 2. In the prior art, the mounting beam 1 and the vehicle body longitudinal beam 2 are fixedly connected, so as to effectively fix the battery pack, and a connection structure such as a bolt and a nut is usually adopted.

Different from the prior art, the scheme does not directly adopt a conventional connecting part to fix the mounting beam 1 and the vehicle body longitudinal beam 2, but adopts a connecting structure to fix the mounting beam 1 and the vehicle body longitudinal beam. Set up connection structure and at first can satisfy the vertical restraint to installation roof beam 1 and automobile body longeron 2, thereby play the fixed effect to installation roof beam 1 and automobile body longeron 2, can guarantee simultaneously not to retrain in the contact surface direction of installation roof beam 1 and automobile body longeron 2, thereby when receiving the collision for the later stage vehicle, relative slip between installation roof beam 1 and the automobile body longeron 2 provides probably, and then realize the energy-absorbing effect that contracts of the bursts mentioned above, through installation roof beam 1 promptly, the produced frictional force comes to unload and the energy-absorbing to the external force impact between automobile body longeron 2 and the connection structure, the energy-absorbing that contracts bursts promptly.

In some prior art, there is a crumple energy absorption mode with a buffer portion, that is, an elastic member such as a spring is additionally provided to absorb energy when impacting external force, and the function is independent and independent, and there is no cooperative effect between the mounting beam 1 and the vehicle body longitudinal beam 2, so the crumple energy absorption mode is also greatly different from the present scheme.

Specifically, the mounting beam 1 and the body side member 2 can be connected by using an existing guide structure to realize relative sliding between the two.

For example, the vehicle body longitudinal beam 2 may be provided with a sliding groove, and correspondingly, the mounting beam 1 may be provided with a sliding block matched with the sliding groove, so as to realize the relative sliding between the mounting beam 1 and the vehicle body longitudinal beam 2.

For example, a guide rod may be disposed on the outer frame of the battery pack, and correspondingly, a through hole matched with the guide rod may be opened on the vehicle body side member 2 or a guide cylinder may be fixed on the vehicle body side member 2 to realize relative sliding between the two.

Referring to fig. 1 and 2, in some embodiments, the mounting beam 1 includes a first contact surface inclined upward or downward in the width direction of the vehicle body, the vehicle body side member 2 includes a second contact surface matching with the first contact surface, and the mounting beam 1 is slidably engaged with the second contact surface of the vehicle body side member 2 through the first contact surface.

In the above embodiment, the contact manner between the mounting beam 1 and the body side member 2 is optimized. It should be emphasized that the mounting beam 1 and the body side member 2 are arranged or stacked one above the other, wherein the arrangement or stacking one above the other is not necessarily completely vertical, i.e. the contact surface of the mounting beam 1 and the body side member 2 is not horizontally arranged.

According to the practical use requirement, the contact surfaces of the installation beam 1 and the vehicle body longitudinal beam 2 can be subjected to inclination treatment, in the stacked arrangement state, the installation beam 1 and the vehicle body longitudinal beam 2 still keep the position relationship of up-down sequential arrangement, but the contact surfaces of the installation beam 1 and the vehicle body longitudinal beam 2 can be inclined planes, the arrangement aims to decompose the force of external force impact, wherein the component force of the external force along the inclined plane direction can enable the vehicle body longitudinal beam 2 to still slide along the inclined plane, so that the crumpling and energy absorption effect is achieved, the component force of the external force vertical to the inclined plane direction can act on the installation beam 1 and the outer frame of the battery pack, the direct stress effect equivalent to that of the prior art is achieved, through the combination of the two components, the technical point of the scheme and the prior art can be combined with each other, and the.

Referring to fig. 1 and 2, in some embodiments, the connecting structure includes a limiting column 4, and a first clamping portion 5 and a second clamping portion 6 respectively located at two ends of the limiting column 4, the first clamping portion 5 is connected to the vehicle body side member 2, and the second clamping portion 6 is connected to the mounting beam 1; the limiting column 4 is in plug-in fit with the mounting beam 1 and the vehicle body longitudinal beam 2; the mounting beam 1 comprises a guide hole corresponding to a bar shape arranged at the position of the limiting column 4, the guide hole extends along the direction from the vehicle body longitudinal beam 2 to the battery pack, or the vehicle body longitudinal beam 2 comprises a guide hole corresponding to a bar shape arranged at the position of the limiting column 4, and the guide hole extends along the direction from the battery pack to the vehicle body longitudinal beam 2.

Therefore, in the above embodiment, the connection structure is specifically disclosed, that is, the connection structure mainly includes the limiting column, where the limiting column can penetrate through the installation beam 1 and the vehicle body longitudinal beam 2, the first clamping portion 5 and the second clamping portion 6 are respectively located on the surfaces of the vehicle body longitudinal beam 2 and the installation beam 1, the limiting column 4 plays a main supporting role, and a large prestress exists between the first clamping portion 5, the second clamping portion 6 and the limiting column 4, so as to ensure that the first clamping portion 5 and the second clamping portion 6 press the installation beam 1 and the vehicle body longitudinal beam 2, thereby ensuring that a friction force is generated between the installation beam 1 and the vehicle body longitudinal beam 2.

The guiding hole is then for guide structure for with the direction guide of automobile body longeron 2 to reservation region 3, this guiding hole can be conventional bar hole, through setting up the guiding hole, can satisfy spacing post activity in this guiding hole, when automobile body longeron 2 slides in opposite directions for installation roof beam 1 promptly, spacing post is corresponding moves in the guiding hole, through spacing post 4, first clamping part 5, second clamping part 6 and guiding hole mutually support, then can effectively realize fixing and satisfying its gliding condition in opposite directions of automobile body longeron 2 and installation roof beam 1.

Wherein, the guiding hole can be set up on installing beam 1 or automobile body longeron 2 according to actual conditions, it should be noted that, when the guiding hole is located automobile body longeron 2, preferentially, can set up a guide block on automobile body longeron 2, be provided with the guiding hole on this guide block, can avoid the problem that automobile body longeron 2 intensity reduces because of trompil on automobile body longeron 2 like this.

The structure may be any structure that can be connected to the vehicle body side member 2, and the vehicle body side member 2 may be interposed between the first sandwiching portion 5 and the mounting beam 1 at an end portion of the vehicle body side member 2 remote from the mounting beam 1. The first clamping portion 5 can also be fixedly connected to the body side member 2, for example, arranged inside the body side member 2, and correspondingly, the restraining column 4 extends through the body side member 2 and is connected to the second clamping portion 6.

The limiting column 4 mainly plays a role of connecting the first clamping part 5 and the second clamping part 6, so that the distance between the first clamping part and the second clamping part is reduced as much as possible, and the friction force between the mounting beam 1 and the vehicle body longitudinal beam 2 is increased within a designed value.

The second clamping part 6 is located the one end that the automobile body longeron 2 was kept away from to installation roof beam 1 to play the fastening to installation roof beam 1, can set up adjustment mechanism in order to realize the relative motion between the two between second clamping part 6 and the spacing post 4, thereby be used for controlling the interval of first clamping part 5 and second clamping part 6. For example, the limiting column 4 and the second clamping part 6 can be connected by conventional threads, and the nut can move on the stud by matching the nut with the stud, namely the second clamping part 6 can move on the limiting column 4; bolts may be provided in the second clamping portion 6, and the bolts may be screwed to clamp the mounting beam 1.

Referring to fig. 3 and 4, in some embodiments, the pilot hole includes a flared hole 7, and the diameter of the flared hole 7 is gradually increased along the extending direction of the pilot hole.

The guiding hole further comprises a limiting hole 8 communicated with the flaring hole 7, the limiting hole 8 and the flaring hole 7 are sequentially arranged along the extending direction of the guiding hole, and the aperture of one end, close to the limiting hole 8, of the flaring hole 7 is smaller than the diameter of the limiting hole 8.

In the above embodiment, the structure of the guide hole is further optimized, that is, the guide hole includes the limiting hole 8 and the flared hole 7, and the diameter of the flared hole 7 near the limiting hole 8 is smaller than the diameter of the limiting hole 8, so that the limiting column 4 can be well fixed through the limiting hole 8 without being impacted. When the vehicle is impacted, the limiting column 4 moves from the limiting hole 8 to the flared hole 7, the caliber of the flared hole 7 is larger, the limiting column 4 can conveniently enter the flared hole 7 and move in a certain range, and therefore the vehicle can be suitable for different impacting directions.

The flaring hole 7 can be in a horn mouth shape or a fan shape, the two ends of the flaring hole are different in size, and the smaller end of the flaring hole is communicated with the limiting hole 8. The reason of above-mentioned setting lies in, if only set up the displacement passageway of a direction for spacing post 4, then can't satisfy the demand, and set the guiding hole to the horn mouth shape or fan-shaped then can be fine solution this problem, and horn mouth or fan-shaped angle also can adjust according to the design needs.

Preferably, the flared hole 7 is in arc transition connection with the limiting hole 8, so that the limiting column 4 is convenient to transition from the limiting hole 8 to the flared hole 7.

Referring to fig. 1, in some embodiments, the limiting column 4 includes a stud, the second clamping portion 6 includes a bolt head disposed at one end of the stud, the first clamping portion 5 includes a nut matched with the stud, the bolt head is connected to the mounting beam 1, and the nut is connected to the body side rail 2.

In the above embodiment, the connection structure of the limiting column 4, the first clamping portion 5 and the second clamping portion 6 is specifically disclosed, that is, the combination of the limiting column 4, the first clamping portion 5 and the second clamping portion 6 is actually a combination of a bolt and a nut, it can be understood that the first clamping portion 5 is a nut, the second clamping portion 6 is a bolt head, and the limiting column 4 is a stud.

It should be emphasized that the stud and pilot hole combination of the present embodiment is also ingenious, because in most of the prior art, the stud and nut combination is mainly suitable for fixed connection, that is, the two components can be effectively fixed by the stud and the nut, so that the two components can not move in any direction. In the embodiment, the stud nut can firstly realize effective compression and fixation between the vehicle body longitudinal beam 2 and the mounting beam 1 and then is matched with the guide hole, so that the stud can be matched with the guide hole, the effect similar to a sliding block and a sliding way is achieved, and further effective utilization of the stud is realized. The structure is simple, the mounting beam 1 and the vehicle body longitudinal beam 2 are not changed too much, and the practicability is high.

Referring to fig. 1, in some embodiments, a nut is welded to a body rail 2.

In the embodiment, the mounting mode between the mounting beam 1 and the vehicle body longitudinal beam 2 is further optimized, and the nut is welded, so that in the actual use process, only the stud is required to be screwed into the nut, and the butt joint process of the nut can be omitted; and because the nut is fixed, the combination of the stud and the nut can be realized only by screwing the stud, and the mounting process of the nut is simplified.

Referring to fig. 1, more specifically, a vehicle body side member 2 is disposed at the top end of a mounting beam 1, a guide hole is provided in the mounting beam 1, and a nut is welded to the vehicle body side member 2.

In the above embodiment, the structure of the stud, the nut, the mounting beam 1, and the vehicle body side member 2 is specifically disclosed. Considering that the battery pack is mainly positioned at the bottom of the vehicle body in the actual production process, the outer frame of the battery pack and the mounting beam 1 are relatively low, the vehicle body longitudinal beam 2 is arranged at the top end of the mounting beam 1, considering the implementation convenience, a nut is welded on the vehicle body longitudinal beam 2, a guide hole is arranged on the mounting beam 1, and in the specific implementation process, a stud sequentially penetrates through the mounting beam 1 and the vehicle body longitudinal beam 2, and then the stud and the nut are screwed.

Referring to fig. 1, 2 and 4, in some embodiments, the guiding hole is disposed on the mounting beam 1, a gasket 9 is disposed between the mounting beam 1 and the second clamping portion 6, the gasket 9 is sleeved on the limiting post 4, and a diameter of the gasket 9 is greater than a maximum aperture of the guiding hole.

In the above embodiment, the connection between the mounting beam 1 and the second clamping portion 6 is further optimized, and as can be seen from the above, when the vehicle is impacted, the stud moves in the guiding hole, wherein the flared hole 7 may adopt a flared shape and a fan-shaped structure, and the end of the flared hole has an expansion tendency, so as to avoid the second clamping portion 6 separating from the flared hole 7, a gasket 9 may be provided, the size of the gasket 9 is larger than the maximum aperture of the flared hole 7, so that the mounting beam 1 may be supported by the gasket 9, and the mounting beam 1 may be effectively ensured not to separate from the vehicle body longitudinal beam 2, that is, the battery pack is prevented from falling off when the vehicle is impacted.

The pad 9 may also be a rough surface structure, which may further increase the friction with the mounting beam 1, thereby optimizing the energy absorption effect.

A vehicle comprises the battery pack mounting structure.

In the above embodiment, the vehicle having the above-described respective structures is disclosed, and it should be noted that, since the vehicle body side members 2 are located on the left and right sides of the vehicle, the above-described mounting structures are first applied to the left and right sides of the vehicle to achieve the side impact prevention effect of the vehicle. Correspondingly, the mounting structures can be arranged on the front side and the rear side of the vehicle according to requirements, so that the application range of the vehicle is further expanded.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The battery pack mounting structure is characterized by comprising a connecting structure and a mounting beam (1) with one end connected with a battery pack outer frame, wherein one end of the connecting structure is connected with a vehicle body longitudinal beam (2), the other end of the mounting beam (1) is clamped between the vehicle body longitudinal beam (2) and the other end of the connecting structure, and the mounting beam (1) is in sliding fit with the vehicle body longitudinal beam (2).

2. The battery pack mounting structure according to claim 1, wherein the mounting beam (1) includes a first contact surface provided obliquely upward or downward in the vehicle width direction, the vehicle body side member (2) includes a second contact surface matching the first contact surface, and the mounting beam (1) is slidably fitted with the second contact surface of the vehicle body side member (2) through the first contact surface.

3. The battery pack mounting structure according to claim 1, wherein the connecting structure includes a limit post (4), and a first clamping portion (5) and a second clamping portion (6) respectively located at both ends of the limit post (4), the first clamping portion (5) is connected to the vehicle body side member (2), and the second clamping portion (6) is connected to the mounting beam (1).

4. The battery pack mounting structure according to claim 3, wherein the limiting post (4) comprises a stud, the second clamping portion (6) comprises a bolt head disposed at one end of the stud, the first clamping portion (5) comprises a nut matched with the stud, the bolt head is connected with the mounting beam (1), and the nut is connected with the body side member (2).

5. The battery pack mounting structure according to claim 3, wherein the limit post (4) is fitted with the mounting beam (1) and the vehicle body side member (2) in an insertion manner;

the mounting beam (1) comprises a strip-shaped guide hole arranged at the position corresponding to the limiting column (4), the guide hole extends along the direction from the vehicle body longitudinal beam (2) to the battery pack,

or the like, or, alternatively,

the automobile body longitudinal beam (2) comprises a strip-shaped guide hole corresponding to the position of the limiting column (4), and the guide hole extends in the direction from the battery pack to the automobile body longitudinal beam (2).

6. The battery pack mounting structure according to claim 5, wherein the guide hole includes a flared hole (7), and a diameter of the flared hole (7) is gradually increased in an extending direction of the guide hole.

7. The battery pack mounting structure according to claim 6, wherein the guide hole further includes a limiting hole (8) communicating with the flared hole (7), the limiting hole (8) and the flared hole (7) are sequentially arranged along an extending direction of the guide hole, and a diameter of one end of the flared hole (7) close to the limiting hole (8) is smaller than a diameter of the limiting hole (8).

8. The battery pack mounting structure according to claim 7, wherein the flared hole (7) is transitionally connected with the arc surface of the stopper hole (8).

9. The battery pack mounting structure according to claim 5, wherein the guide hole is provided in the mounting beam (1), a gasket (9) is provided between the mounting beam (1) and the second clamping portion (6), the gasket (9) is fitted over the stopper post (4), and a diameter of the gasket (9) is larger than a maximum diameter of the guide hole.

10. A vehicle characterized by comprising the battery pack mounting structure according to any one of claims 1 to 9.

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