CN115332707A - Battery pack, vehicle body structure and vehicle - Google Patents

Abstract

The invention discloses a battery pack, a vehicle body structure and a vehicle, wherein the battery pack comprises: the top wall of the shell forms a vehicle body floor; the battery cell is arranged in the shell, and at least part of the inner wall of the shell is protruded towards the direction far away from the battery cell so as to form a pipeline channel; a line assembly disposed in the line channel, the line assembly adapted to communicate with an external conduit. According to the battery pack, the top wall of the shell is used as the floor of the vehicle body, the floor of the vehicle body can be omitted, more space is saved for expanding the capacity of the battery pack, the vehicle endurance is increased, the pipeline assembly of the vehicle is arranged in the pipeline channel, the pipeline layout in the vehicle can be optimized, the assembly difficulty is reduced, and the problems that the pipeline enters and exits the passenger compartment due to the fact that the pipeline assembly is exposed outside the battery pack or in the passenger compartment on the upper side of the floor, the sealing difficulty of the pipeline entering and exiting the passenger compartment is high, the noise is high and the cost is high can be solved.

Description

Battery pack, body structure and vehicle

technical field

The invention relates to the technical field of vehicles, in particular to a battery pack, a vehicle body structure and a vehicle.

Background technique

At present, the pure electric architecture models all use large flat-panel power battery packs, and the battery packs are integrated into the lower body (chassis or body). In order to increase the power of the whole package, certain improvements are usually made to the body structure. Among them, for the improvement of the layout of the brake pipes, air spring pipes, rear motor cooling water pipes and part of the wiring harness under the floor, the existing technical solutions mainly There are: the pipeline is integrated and arranged inside the sill beam. This method will cause damage to the pipeline and brake failure when the vehicle is side-collision. The package or the upper part of the floor, and the interior of the passenger compartment, but this method will affect the NVH performance of the vehicle due to the flow of liquid in the pipeline, and the assembly process is poor, and the sealing of the pipeline into and out of the passenger compartment is difficult and expensive; in addition, The pipeline is also arranged in the reinforcement beam inside the battery pack, which will occupy the layout space of the battery cells, and it is difficult to assemble the external pipeline through the battery pack.

Contents of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the present invention proposes a battery pack, which helps to reduce the weight of the vehicle body and increase the battery life of the vehicle. At the same time, the pipeline layout of the vehicle is optimized, the assembly difficulty is low, the sealing performance is good, and the noise is low.

The present invention also proposes a vehicle body structure having the above-mentioned battery pack.

The present invention also proposes a vehicle having the above-mentioned body structure.

The battery pack according to the first aspect of the present invention includes: a casing, the top wall of which constitutes a vehicle body floor; an electric core, which is arranged in the casing, and at least part of the inner wall of the casing faces away from The direction of the electric core protrudes to form a pipeline channel; a pipeline assembly, the pipeline assembly is arranged in the pipeline channel, and the pipeline assembly is suitable for communicating with an external pipeline.

According to the battery pack of the present invention, the top wall of the casing is used as the body floor, which can save a separate body floor, save more space to expand the battery pack, and increase the battery life of the vehicle, while at least part of the casing The inner wall protrudes toward the direction away from the battery cell to form a pipeline channel. Arranging the pipeline components of the vehicle in the pipeline channel can optimize the pipeline layout inside the vehicle and avoid occupying the battery cells when the pipeline components are arranged in the reinforcing beam inside the battery pack. The installation space affects the battery capacity and the safety of the battery cells, which reduces the difficulty of assembly, and can also solve the difficulty in sealing the pipelines entering and leaving the passenger compartment caused by exposing the pipeline components outside the battery pack or in the passenger compartment on the upper side of the floor, and the noise is high. The problem of high cost.

According to some embodiments of the present invention, the housing includes: a housing body, the housing body defines an accommodating cavity with an open top, and the electric core is arranged in the accommodating cavity; a top cover, which is covered by the top cover The open end of the accommodating cavity, the top cover constitutes the vehicle body floor, and the pipeline channel is formed by protruding at least part of the inner wall of the top cover toward a direction away from the battery core.

Further, the pipeline channel extends along the front-to-rear direction and penetrates the top cover.

In some embodiments, in a direction from bottom to top, the width of the pipeline channel gradually decreases, and the top wall of the pipeline channel is formed as a plane.

In some embodiments, the battery pack further includes: a spacer forming a bottom wall of the pipeline channel, and the spacer is used to separate the pipeline assembly from the battery cell.

Further, the spacer layer includes: a thermal insulation layer and an adhesive layer stacked up and down, the thermal insulation layer is suitable for blocking the bottom end of the pipeline channel, and the adhesive layer is used for bonding the The heat insulation layer and the top of the electric core.

According to some embodiments of the present invention, the battery pack further includes: a joint assembly, the joint assembly includes two, the two joint assemblies are respectively connected to the front and rear ends of the pipeline assembly, and the two joint assemblies They are respectively arranged at the front and rear ends of the shell body, or the two joint assemblies are respectively arranged at the front and rear ends of the top cover, and the joint assemblies are suitable for blocking the pipeline channel.

Further, the joint assembly includes a mounting frame and a plurality of joints, the mounting frame is provided with a plurality of through holes corresponding to the plurality of joints, and each of the joints is passed through the corresponding through hole , each of the joints is suitable for connecting one of the pipelines in the pipeline assembly with a corresponding external pipeline.

Still further, the installation frame is detachably connected to the side wall of the shell body along the front-rear direction, and the joint assembly further includes: a first seal, the first seal is arranged on the shell body along the front-rear direction and/or, the joint assembly further includes: a second sealing element, the second sealing element is arranged between the joint and the installation frame.

The vehicle body structure according to the second aspect of the present invention includes: a floor frame and the battery pack according to the first aspect of the present invention, the top wall of the casing is connected to the floor frame.

According to the body structure of the present invention, by installing the battery pack in the above embodiment, the overall weight can be reduced, the body structure can be simplified, and the space occupied by the body floor and accessories can be used to expand the capacity of the battery pack and improve the battery life of the vehicle.

According to some embodiments of the present invention, the floor frame includes a middle channel beam extending in the front-to-rear direction and arched upward, the housing includes a top cover, and the middle channel beam fits on the top cover and is in contact with the top cover. The pipeline channels are opposite up and down.

In some embodiments, a second seal is provided between the floor frame and the housing, and the second seal extends along the circumference of the housing.

A vehicle according to a third aspect of the present invention includes the vehicle body structure according to the second aspect of the present invention.

According to the vehicle of the present invention, by setting the vehicle body structure according to the second aspect of the present invention, the overall weight is lighter and the battery life is increased.

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

Description of drawings

1 is an exploded view of a battery pack according to an embodiment of the present invention;

Figure 2 is a cross-sectional view of one location of the battery pack shown in Figure 1;

Fig. 3 is a cross-sectional view of another position of the battery pack shown in Fig. 1, and the positions of the cross-sections in Fig. 2 and Fig. 3 are different in the left-right direction of the battery pack;

FIG. 4 is a schematic diagram of another angle of the battery pack shown in FIG. 1 .

Reference signs:

battery pack 100,

Housing 1, top cover 11, housing body 12, accommodating cavity 121,

Battery cell 2, pipeline channel 3,

Pipeline assembly 4, joint assembly 5, mounting frame 51, joint 52,

Interlayer 6 , heat insulating layer 61 , adhesive layer 62 , and first sealing member 7 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

A battery pack 100 according to an embodiment of the first aspect of the present invention will be described below with reference to FIGS. 1-4 .

As shown in FIG. 1 , a battery pack 100 according to an embodiment of the present invention includes: a casing 1 , a battery cell 2 and a pipeline assembly 4 .

Specifically, the top wall of the housing 1 can form the vehicle body floor, in other words, the vehicle no longer has a separate body floor independent of the battery pack 100, but uses the top wall of the battery pack 100 housing 1 as the vehicle body floor to The space occupied by the vehicle body floor is saved to increase the capacity of the battery pack 100 to increase the battery life of the vehicle.

The electric core 2 can be arranged in the casing 1, and at least part of the inner wall of the casing 1 protrudes toward a direction away from the electric core 2 to form a pipeline passage 3, for example, a part of the top wall of the casing 1 can be arched upward to The inner wall of the housing 1 forms a pipeline channel 3 that opens toward the battery core 2 , or the side wall of the housing 1 arches away from the battery core 2 to form a pipeline channel that opens toward the battery core 2 on the inner wall of the housing 1 3. Of course, the present invention is not limited thereto, and the specific position of the pipeline channel 3 can be reasonably selected according to actual needs.

The pipeline assembly 4 may include suspension air pipes, brake pipes, coolant pipes, and other pipelines or wiring harnesses. It can be understood that the pipeline assembly 4 here may include pipelines related to the battery pack 100 (such as power supply wire harnesses or coolant pipes, etc. ), may also include pipelines of other systems of the vehicle other than the relevant pipelines of the battery pack 100, and of course may be only one of them. The pipeline assembly 4 is arranged in the pipeline passage 3, and the pipeline assembly 4 is suitable for communicating with an external pipeline.

According to the battery pack 100 of the embodiment of the present invention, the top wall of the housing 1 is used as the body floor, which can save a separate body floor, save more space for expanding the battery pack 100, and further increase the battery life of the vehicle. At least part of the inner wall of the housing 1 protrudes away from the battery cell 2 to form a pipeline channel 3. Arranging the pipeline assembly 4 of the vehicle in the pipeline channel 3 can optimize the pipeline layout inside the vehicle and avoid the pipeline assembly 4 being arranged in the battery. When inside the reinforcement beam inside the battery pack 100, occupying the placement space of the battery cell 2 affects the battery capacity and battery safety, reduces the difficulty of assembly, and can also solve the problem of exposing the pipeline assembly 4 to the outside of the battery pack 100 or the passenger compartment on the upper side of the floor. In addition, it can better protect the pipeline assembly 4 and avoid problems such as brake failure caused by pipeline damage when the vehicle collides.

According to some embodiments of the present invention, referring to FIGS. 1 and 2 , the housing 1 may include: a housing body 12 and a top cover 11 . Wherein, the housing main body 12 can define an accommodating cavity 121 with an open top, and the electric core 2 is arranged in the accommodating cavity 121, and the top cover 11 covers the open end of the accommodating cavity 121, so that the accommodating cavity 121 forms a closed cavity, and the top cover 11 The body floor can be formed, and the pipeline channel 3 is formed by at least part of the inner wall of the top cover 11 protruding away from the electric core 2, where the inner wall refers to the side wall of the top cover 11 facing the electric core 2 (shown in FIG. 3 The bottom wall of the top cover 11), for example, the part of the inner wall of the top cover 11 in the left-right direction protrudes upwards to form a pipeline channel 3, and the pipeline channel 3 can extend in a straight line along the front-to-back direction, or can be curved or curved along the front-to-back direction. The broken line extends, and the shape of the pipeline channel 3 can be reasonably arranged according to the direction of the pipeline, which is not specifically limited here. In this way, the pipeline channel 3 is located on the upper side of the battery cell 2, which can prevent the pipeline channel 3 from occupying the space for placing the battery cell 2, which is conducive to making full use of the internal space of the battery pack 100, and, because the internal space of the battery pack 1 is The enclosed space can therefore significantly reduce the noise generated when gas or liquid flows in the pipeline assembly, improving the NVH performance of the vehicle.

Further, referring to FIG. 1 and FIG. 4 , the pipeline channel 3 can extend along the front and back directions and penetrate the top cover 11, so that the pipeline assembly 4 can be connected to the corresponding external pipelines from the front end and the rear end of the pipeline channel 3 respectively, and at the same time, This makes the structure of the top cover 11 simple and easy to manufacture.

In some embodiments, referring to FIG. 4 , in the direction from bottom to top, the width of the pipeline channel 3 gradually decreases. For example, the pipeline channel 3 has a top wall and side walls connected to the left and right sides of the top wall. The walls can extend obliquely toward each other as a whole, and there can be a circular arc transition between the top wall and the two side walls. In this way, the pipeline channel 3 is formed into an arched structure, and the arched structure can increase the structural strength of the middle channel beam. It helps to better protect the pipeline assembly 4 located in the pipeline channel 3, and the top wall of the pipeline channel 3 is formed as a plane, which can facilitate the installation of the roof 11 as the vehicle body floor and the floor frame part of the vehicle body structure, such as the middle channel beam. connect.

In some embodiments, the surrounding wall of the pipeline channel 3 is formed with multiple reinforcing ribs (not shown in the figure), and the multiple reinforcing ribs can not only increase the structural strength of the pipeline channel 3, but also improve the overall structural strength of the top cover 11, thereby Better protect the pipeline assembly 4 and the battery cell 2 .

In some embodiments, a plurality of fixing plates (not shown) may be formed in the pipeline channel 3, for example, a plurality of fixing plates are parallel to each other and arranged at intervals along the length direction of the pipeline channel 3 (ie, the front-to-back direction), each A plurality of fixing holes corresponding to a plurality of pipelines in the pipeline assembly 4 can be opened on the fixing plate, and a plurality of fixing holes on each fixing plate can be arranged at intervals along the left and right directions, and the plurality of fixing holes are used for The fixing holes that pass through the same pipeline are opposite along the front and back directions, and each pipeline passes through the fixing holes on multiple fixing plates in sequence along the front and rear directions, so that it is convenient to separate different pipelines, for example, to separate the transmission gas and The pipelines for transporting liquids are separated, or the high temperature pipelines are separated from the low temperature pipelines, so as to better fix and protect the pipeline assembly 4 .

In some embodiments, referring to FIGS. 1-3 , the battery pack 100 may further include: a spacer 6 . Specifically, the interlayer 6 can form the bottom wall of the pipeline channel 3, and the interlayer 6 is used to separate the pipeline assembly 4 from the battery core 2, so that the battery core 2 can be better protected, and the battery core 2 can be better protected. For the pipeline assembly 4, for example, when the thermal runaway of the battery cell 2 occurs, the interlayer 6 helps to reduce the damage of the high-temperature and high-pressure gas to the pipeline assembly 4, and when the vehicle collides, causing the pipeline assembly 4 to leak gas and liquid, it will also Gas and liquid can be separated from the battery cell 2 to prevent secondary accidents.

Further, referring to Fig. 1-Fig. 3, the spacer 6 may include: a heat insulating layer 61 and an adhesive layer 62, the heat insulating layer 61 and the adhesive layer 62 are stacked in the vertical direction, and the heat insulating layer 61 is suitable for sealing pipelines At the bottom of the channel 3, the adhesive layer 62 is used to bond the heat insulating layer 61 and the top of the battery cell 2, so that the adhesive layer 62 can be used to fix the heat insulating layer 61, and the heat insulating layer 61 can make the battery cell 2 work The generated heat is isolated from the pipeline channel 3 to prevent the pipeline component 4 from being affected by the continuous heat and causing the working life and reliability to be affected.

According to some embodiments of the present invention, referring to FIG. 1 and FIG. 2 , the battery pack 100 may further include: a joint assembly 5, including two joint assemblies 5, the two joint assemblies 5 are respectively connected to the front and rear ends of the pipeline assembly 4, and the two joint assemblies 5 Two joint assemblies 5 are respectively provided at the front and rear ends of the shell body 12 , or two joint assemblies 5 are respectively provided at the front and rear ends of the top cover 11 , and the joint assemblies 5 are suitable for sealing the pipeline channel 3 . In this way, the pipeline assembly 4 in the pipeline channel 3 can be conveniently connected to the corresponding external pipeline, and at the same time, the tightness of the pipeline channel 3 can be ensured to prevent liquid leakage.

Further, referring to FIG. 1 and FIG. 4 , the pipeline assembly 4 may include a plurality of pipelines arranged at intervals, for example, the pipeline assembly 4 may include suspension air pipes, brake pipes, coolant pipes and other pipelines. The joint assembly 5 may include a mounting frame 51 and a plurality of joints 52. The mounting frame 51 may constitute a part of the housing 1, for example, the mounting frame 51 may constitute a part of the side wall of the housing 1 along the front-rear direction, or the mounting frame 51 It can also be detachably connected to the side wall of the housing 1 along the front and rear directions. The mounting frame 51 is provided with a plurality of through holes corresponding to the plurality of joints 52 one by one. Each joint 52 is suitable for connecting one of the pipelines in the pipeline assembly 4 with the corresponding external pipeline, so that the pipeline assembly 4 in the battery pack 100 can be easily connected with the corresponding external pipeline.

In some other embodiments, at least one pipeline in the pipeline assembly 4 can be a fire extinguishing tube, and a fire extinguishing agent can be stored in the fire extinguishing tube, so that when the battery cell 2 suffers from thermal runaway and the high-temperature and high-pressure gas spreads to the pipeline channel 3, The fire extinguishing pipe is burned through and releases the fire extinguishing agent, thereby protecting other pipelines in the pipeline assembly 4 and preventing systems such as braking of the vehicle from failing.

According to some optional embodiments of the present invention, the mounting frame 51 is detachably connected to the side wall of the shell body 12 along the front-rear direction, for example, the mounting frame 51 can be bolted to the shell body 12, and the joint assembly 5 can also include: a first seal 7, the first seal 7 is provided between the side wall of the shell main body 12 along the front-rear direction and the installation frame 51. In this way, the installation gap between the case main body 12 and the mounting frame 51 can be better filled by the first sealing member 7, thereby improving the sealing performance of the connection position between the first sealing member 7 and the case main body 12, which is beneficial to improving the stability of the battery pack 100. Sealing performance.

According to some optional embodiments of the present invention, the joint assembly 5 may also include: a second sealing member (not shown in the figure), the second sealing member is arranged between the joint 52 and the installation frame 51, so that the second sealing member The installation gap between the joint 52 and the mounting frame 51 can be better filled, for example, the second seal can be arranged between the outer peripheral wall of the joint 52 and the perforated inner peripheral wall of the mounting frame 51, which can improve the joint 52 and the mounting frame. 51 The tightness of the stent prevents gas or liquid from leaking out.

A vehicle body structure according to an embodiment of the second aspect of the present invention will be described below.

The vehicle body structure according to the embodiments of the present invention may include: a floor frame and the battery pack 100 in the above embodiments.

Specifically, the top wall of the housing 1 is connected to the floor frame. For example, the floor frame may include an outer frame structure composed of a front wall of the vehicle body, left and right door sills, etc., and an inner beam structure such as a channel beam. When the top wall of the casing 1 of the battery pack 100 is used as the body floor, the periphery of the top wall of the casing 1 is connected to the outer frame structure, and the middle part of the top wall of the casing 1 in the left and right direction is connected to beam structures such as the middle channel beam. In this way, compared with the way in which the battery pack 100 is arranged on the underside of the vehicle body floor in the related art, the weight of the vehicle body can be reduced, the space occupied by the vehicle body floor and accessories can be saved, and more space can be saved in the height direction to expand the battery capacity. The capacity of the battery pack 100 helps to increase the energy density of the battery pack 100 and improve the battery life of the vehicle.

According to the body structure of the embodiment of the present invention, by installing the battery pack 100 in the above embodiment, the overall weight can be reduced, the body structure can be simplified, and the capacity of the battery pack 100 can be expanded by using the space occupied by the body floor and accessories, which helps to improve the The energy density of the battery pack is 100, which improves the battery life of the vehicle.

According to some embodiments of the present invention, the floor frame includes a middle channel beam extending in the front-rear direction and arching upwards, the housing 1 includes a top cover 11, the middle channel beam is attached to the top cover 11 and is opposite to the pipeline channel 3 up and down, because The main function of both ends of the middle channel is to transmit external force along the longitudinal direction, that is, the front and rear directions, when the vehicle collides, and the middle channel beam and the pipeline channel 3 face each other up and down, so that the pipeline channel 3 and the internal pipeline components 4 can be better protected when the vehicle collides , Improve vehicle safety.

In some embodiments, a second sealing member is provided between the floor frame and the housing 1, and the second sealing member extends along the circumference of the housing 1, for example, the second sealing member may be provided on the circumference of the top cover 11, The second seal is located between the lower surface of the floor frame and the upper surface of the top cover 11. At this time, the sealing surface of the battery pack 100 casing 1 and the sealing surface of the floor frame are on the same plane, which is beneficial to the installation of the battery pack 100. stability and tightness.

A vehicle according to an embodiment of the third aspect of the present invention is described below.

A vehicle according to an embodiment of the present invention includes the vehicle body structure in the above-described embodiments.

According to the vehicle according to the embodiment of the present invention, the overall weight is lighter and the battery life is increased by arranging the vehicle body structure in the above embodiment.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, use a specific Azimuth configuration and operation, therefore, should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection or an indirect connection through an intermediary, it can be the internal communication of two components or the interaction relationship between two components . Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (13)

1. A battery pack, comprising:

the top wall of the shell forms a vehicle body floor;

the battery cell is arranged in the shell, and at least part of the inner wall of the shell is protruded towards the direction far away from the battery cell so as to form a pipeline channel;

a line assembly disposed in the line channel, the line assembly adapted to communicate with an external conduit.

2. The battery pack of claim 1, wherein the housing comprises:

the battery shell comprises a shell main body, a battery core and a battery cover, wherein the shell main body defines a containing cavity with an open top, and the battery core is arranged in the containing cavity;

the top cover covers the open end of the accommodating cavity, the top cover forms the vehicle body floor, and the pipeline channel is formed by protruding at least part of the inner wall of the top cover towards the direction far away from the battery core.

3. The battery pack of claim 2, wherein the conduit channel extends in a front-to-back direction and through the top cover.

4. The battery pack according to claim 2, wherein the width of the duct channel is gradually reduced in a direction from bottom to top, and a top wall of the duct channel is formed in a plane.

5. The battery pack according to claim 2, further comprising: a barrier separating the manifold assembly and the cells, the barrier forming a bottom wall of the manifold channel.

6. The battery pack of claim 5, wherein the spacer comprises: the heat insulation layer and the adhesive layer are stacked in the up-down direction, the heat insulation layer is suitable for blocking the bottom end of the pipeline channel, and the adhesive layer is used for bonding the heat insulation layer and the top of the battery cell.

7. The battery pack of any one of claims 2-6, further comprising: the joint components comprise two joint components, the two joint components are respectively connected with the front end and the rear end of the pipeline component, the two joint components are respectively arranged at the front end and the rear end of the shell main body, or the two joint components are respectively arranged at the front end and the rear end of the top cover, and the joint components are suitable for plugging the pipeline channel.

8. The battery pack of claim 7, wherein the connector assembly comprises a mounting frame and a plurality of connectors, the mounting frame is provided with a plurality of through holes corresponding to the connectors one to one, each connector penetrates through the corresponding through hole, and each connector is suitable for connecting one of the pipelines in the pipeline assembly with an external corresponding pipeline.

9. The battery pack of claim 8, wherein the mounting bracket is detachably connected to the side wall of the case main body in the front-rear direction, and the connector assembly further comprises: a first seal member provided between a side wall of the case main body in the front-rear direction and the mount; and/or, the joint assembly further comprises: a second seal disposed between the joint and the mounting bracket.

10. A vehicle body structure characterized by comprising:

a floor frame;

a battery pack according to any one of claims 1 to 9, the top wall of the housing being connected to the floor frame.

11. The vehicle body structure of claim 10, wherein the floor frame includes a center tunnel beam extending in a fore-and-aft direction and arched upward, and the shell includes a roof, the center tunnel beam abutting the roof and being vertically opposed to the pipeline tunnel.

12. The vehicle body structure of claim 10, wherein a second seal is provided between the floor frame and the housing, the second seal extending along a circumferential direction of the housing.

13. A vehicle, characterized by comprising: the vehicle body structure according to any one of claims 10 to 12.

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