CN217969436U - Rear cross member, battery pack shell and vehicle - Google Patents

Abstract

The utility model discloses a rear frame member, battery package casing and vehicle, rear frame member include the roof beam body and a plurality of supports that are used for connecting functional device, are equipped with a plurality of mounting holes on the roof beam body, and a plurality of supports are installed in the mounting hole one-to-one, still are equipped with the connecting portion that are used for connecting automobile body, upper cover and end backplate on the roof beam body. The battery pack shell comprises an upper cover, a bottom protective plate, a left cross beam, a right cross beam, a front cross beam and a rear cross beam, wherein the upper cover, the bottom protective plate, the left cross beam, the right cross beam, the front cross beam and the rear cross beam are connected to form the battery pack shell which is a cuboid on the whole, and the vehicle comprises a battery pack body. Through set up connecting portion on the roof beam body, realized being connected of roof beam body and upper cover, end backplate and automobile body to realize being connected of battery package and automobile body. Through set up a plurality of mounting holes on the roof beam body to the support of the functional device of installation different grade type, thereby make the function of back beam integrated installation functional device, and then make the function of back beam diversified.

Description

Rear cross member, battery pack shell and vehicle

Technical Field

The utility model relates to a vehicle manufacturing technical field especially relates to a battery package installation roof beam and vehicle.

Background

The battery package need use the connecting piece installation to fix inside the vehicle, prevents to take place to remove at the driving in-process, and in the correlation technique, the battery package connecting piece generally is frame beam structure, and this kind of structure is mostly the structure of extruded section, and this kind of extruded section's structure is more in order to satisfy the installation usage of battery package. As long as it is possible to provide a mounting interface for the battery pack and the upper cover. The battery pack connecting piece in the related art is single in structural form, is only used for installing the battery pack and is single in functionality.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a rear frame member, this rear frame member has the characteristics of function abundance, stable in structure, integrated level height and light in weight.

The embodiment of the utility model provides a battery package casing is still provided, this battery package casing's barrier propterty is higher.

The embodiment of the utility model provides a vehicle is still provided.

The utility model discloses rear cross beam includes: the beam body is provided with a plurality of mounting holes, the supports are mounted in the mounting holes in a one-to-one correspondence manner, and the beam body is further provided with a connecting part for connecting a vehicle body, an upper cover and a bottom guard plate.

The utility model discloses rear cross beam through set up connecting portion on the roof beam body, has not only realized being connected of roof beam body and upper cover and end backplate, has still realized being connected with the automobile body to realize being connected of battery package and automobile body. And, through set up a plurality of mounting holes on the roof beam body to the support of the functional device of installation different grade type, thereby make the function that the back crossbeam has integrateed the functional device of installation different grade type, and then make the function of back crossbeam diversified.

In some embodiments, the beam body comprises a beam body and a longitudinal beam body, the longitudinal beam body is vertically arranged, the beam body is horizontally arranged and connected to the upper end of the longitudinal beam body, and the mounting hole is formed in the beam body and/or the longitudinal beam body.

In some embodiments, the stent comprises: temperature sensor connector support, back-drive connector support, mouth of a river support, protective cradle and explosion-proof valve support, be equipped with on the crossbeam body and follow the length direction interval arrangement's of crossbeam body first mounting hole, second mounting hole and third mounting hole, temperature sensor connector support mounting is in the first mounting hole, back-drive connector support mounting is in the second mounting hole, mouth of a river support mounting is in the third mounting hole, be equipped with water inlet and delivery port on the mouth of a river support, be equipped with fourth mounting hole and fifth mounting hole on the longeron body, protective cradle installs in the fourth mounting hole, explosion-proof valve support mounting is in the fifth mounting hole.

In some embodiments, the connection portion includes: sleeve, a plurality of connection boss, first screw hole, second screw hole and third screw hole, the sleeve runs through crossbeam body and protrusion in the lower surface of crossbeam body, telescopic lower terminal surface is the battery package installation face, connect the boss with the lower extreme of longeron body links to each other, and with the crossbeam body homonymy is arranged, and is a plurality of the connection boss is followed the length direction interval arrangement of longeron body, first screw hole is seted up the top of crossbeam body to through bolted connection upper cover, the second screw hole is seted up the top of longeron body, in order to connect the upper cover through the bolt, the third screw hole is seted up the bottom of longeron body, in order to pass through the backplate at the bolted connection end.

In some embodiments, the beam body is internally provided with a cavity, the lower surface of the beam body top plate is provided with a first boss, and the first threaded hole is formed in the beam body top plate and penetrates through the first boss; the novel longitudinal beam is characterized in that a cavity is formed in the longitudinal beam body, a second boss is arranged on the lower surface of the top plate of the longitudinal beam body, a second threaded hole is formed in the top plate of the longitudinal beam body and penetrates through the second boss, a third boss is arranged on the upper surface of the bottom plate of the longitudinal beam body, and a third threaded hole is formed in the bottom plate of the longitudinal beam body and penetrates through the third boss.

In some embodiments, a first reinforcing rib is arranged in the cavity of the beam body; and/or a second reinforcing rib is arranged in the cavity of the longitudinal beam body.

In some embodiments, the upper end of the first reinforcing rib is connected with the top plate of the beam body, the lower end of the first reinforcing rib is connected with the bottom plate of the beam body, the number of the first reinforcing ribs is multiple, and the first reinforcing ribs are arranged at intervals along the width direction of the beam body; the first end of the second reinforcing rib is connected with the inner side plate of the longitudinal beam body, the second end of the second reinforcing rib is connected with the outer side plate of the longitudinal beam body, the first end and the second end of the second reinforcing rib are different in height, the second reinforcing rib is multiple, and the second reinforcing ribs are sequentially arranged in the vertical direction to form a Z-shaped supporting structure.

In some embodiments, the upper surface of the longitudinal beam body is provided with a sealing groove for applying a sealant.

In some embodiments, a step is arranged on the lower surface of the longitudinal beam body, the lower surface of the longitudinal beam body is a bottom protection plate connecting surface, and the lower surface of the step is a water-cooling plate connecting surface.

The utility model discloses battery can casing includes: the battery pack comprises an upper cover, a bottom guard plate, a left cross beam, a right cross beam, a front cross beam and the rear cross beam in any one of the embodiments, wherein the upper cover, the bottom guard plate, the left cross beam, the right cross beam, the front cross beam and the rear cross beam are connected to form the battery pack shell which is substantially a cuboid.

The vehicle of the embodiment of the utility model provides a battery package casing in including above-mentioned embodiment.

Drawings

Fig. 1 is a left side view schematically illustrating a rear cross member according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a rear cross member according to an embodiment of the present invention.

Fig. 3 is a partial structural schematic diagram of the rear cross member according to the embodiment of the present invention.

Reference numerals are as follows:

a beam body 1,

A beam body 11, a first mounting hole 111, a second mounting hole 112, a third mounting hole 113, a sleeve 114, a first boss 115, a first reinforcing rib 116,

A longitudinal beam body 12, a fourth mounting hole 121, a fifth mounting hole 122, a connecting boss 123, a second boss 124, a third boss 125, a second reinforcing rib 126, a step 127, a seal groove 128,

Temperature sensor connector support 2, rear-guard connector support 3, mouth of a river support 4, explosion-proof valve support 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following describes the rear cross member according to an embodiment of the present invention with reference to the drawings.

As shown in fig. 1 to 3, the rear cross member according to the embodiment of the present invention includes: a beam body 1 and a plurality of supports for connecting functional devices. Be equipped with a plurality of mounting holes on the roof beam body 1, a plurality of supports are installed in the mounting hole one-to-one. The beam body 1 is also provided with a connecting part for connecting the vehicle body, the upper cover and the bottom guard plate.

It can be understood that, the battery package includes electric core and is used for enclosing the casing of electric core, and the casing includes roof cover, end backplate and the roof beam of electric core week side, the utility model discloses the back beam is the roof beam of enclosing at electric core rear side.

Optionally, as shown in fig. 1 to fig. 3, a connecting portion is provided on the beam body 1, the connecting portion is used for connecting the beam body 1 with an upper cover (not shown in the figure) located on an upper side of an electric core (not shown in the figure) and a bottom protection plate located on a lower side of the electric core, and the connecting portion is also used for connecting the beam body 1 with a vehicle body, so that a battery pack (not shown in the figure) is connected with the vehicle body, thereby realizing normal installation of the battery pack.

Further, as shown in fig. 1 to 3, a plurality of mounting holes are formed in the beam body 1, and the mounting holes correspond to the brackets one to one. The function and shape of each bracket are different, so that the shape of each mounting hole formed in the beam body 1 is different. The shape of each mounting hole is matched with the shape of the corresponding bracket, so that the bracket is mounted on the beam body 1. The support is used for connecting functional device to make the functional device of different grade type install the utility model discloses on the rear cross beam, thereby improve the integrated level of battery package and relevant part. And, the utility model discloses the installation of the compatible multiple support of back beam, the function is comparatively diversified.

For example, the bracket may be a bracket for a PTC (temperature sensor), a bracket for a rear drive, a bracket for an inlet/outlet nozzle, a bracket for an explosion-proof valve, or a bracket for a connector of a component related to a battery pack. The related parts of the battery pack refer to parts used in cooperation with the battery pack, such as a battery explosion-proof valve, and a large amount of mixed gas and liquid are generated by the battery in the charging and discharging processes, and accompanying pressure is continuously accumulated. If these pressures are not balanced or released in time, deformation leakage occurs slightly, and explosion occurs heavily. Therefore, an explosion-proof valve is provided in the battery to avoid the occurrence of a malfunction.

The utility model discloses rear frame member through set up connecting portion on roof beam body 1, has not only realized being connected of roof beam body 1 and upper cover and backplate, has still realized being connected of roof beam body 1 and automobile body to realize being connected of battery package and automobile body. And, through set up a plurality of mounting holes on roof beam body 1 to the support of the functional device of installation different grade type, thereby make the function that the back crossbeam has integrateed the functional device of installation different grade type, and then make the function diversification of back crossbeam.

In some embodiments, as shown in fig. 1 to 3, the beam body 1 includes a cross beam body 11 and a side beam body 12. The longitudinal beam body 12 is vertically arranged (in the up-down direction in fig. 1), the transverse beam body 11 is horizontally arranged and connected to the upper end of the longitudinal beam body 12, and the transverse beam body 11 and/or the longitudinal beam body 12 are/is provided with mounting holes.

Alternatively, as shown in fig. 1 to 3, the beam body 11 is horizontally disposed, and the length direction of the beam body 11 coincides with the left-right direction, and the width direction of the beam body 11 coincides with the front-rear direction. The longitudinal beam body 12 is located on the front side of the transverse beam body 11, the front end face of the transverse beam body 11 is connected with the rear end face of the longitudinal beam body 12, and the upper end face of the transverse beam body 11 is flush with the upper end face of the longitudinal beam body 12. The battery cell is located on the front side of the longitudinal beam body 12, and the upper end faces of the longitudinal beam body 12 and the cross beam body 11 are attached to the lower end face of the upper cover.

Optionally, the beam body 11 and/or the stringer body 12 are provided with mounting holes. For example, a plurality of mounting holes are formed in the cross beam body 11, or a plurality of mounting holes are formed in the side beam body 12, or, as shown in fig. 3, a part of the plurality of mounting holes is formed in the cross beam body 11, and the remaining part is formed in the side beam body 12. The opening position of the mounting hole is determined according to the internal structure of the vehicle, and high integration of the battery pack and related parts is ensured.

In some embodiments, as shown in fig. 1-3, the stent comprises: temperature sensor connector support 2, rear-guard connector support 3, mouth of a river support 4, protection support and explosion-proof valve support 5. The crossbeam body 11 is provided with a first mounting hole 111, a second mounting hole 112 and a third mounting hole 113 which are arranged at intervals along the length direction of the crossbeam body 11, the temperature sensor connector support 2 is installed in the first mounting hole 111, the rear-drive connector support 3 is installed in the second mounting hole 112, the water gap support 4 is installed in the third mounting hole 113, and the water gap support 4 is provided with a water inlet and a water outlet. The longitudinal beam body 12 is provided with a fourth mounting hole 121 and a fifth mounting hole 122, the protective bracket is mounted in the fourth mounting hole 121, and the explosion-proof valve bracket 5 is mounted in the fifth mounting hole 122.

The first mounting hole 111 is used for mounting the temperature sensor connector bracket 2, and the temperature sensor connector bracket 2 is used for providing a mounting interface for the PTC connector. The second mounting hole 112 is used for mounting the rear drive connector holder 3, and the rear drive connector holder 3 is used for providing a mounting interface for the rear drive connector. The third mounting hole 113 is used for mounting the nozzle holder 4, and the nozzle holder 4 is used for providing a mounting interface for the inlet/outlet nozzle. The fourth mounting hole 121 is used for fixing a protection bracket, the fifth mounting hole 122 is used for mounting an explosion-proof valve bracket 5, the explosion-proof valve bracket 5 is used for providing a mounting interface for the explosion-proof valve and the vent valve, and the protection bracket is used for protecting the explosion-proof valve and the vent valve and preventing the explosion-proof valve and the vent valve from being impacted.

Alternatively, as shown in fig. 2 and 3, the first mounting hole 111, the second mounting hole 112, and the third mounting hole 113 are sequentially opened in the cross beam body 11 in a left-to-right direction, and the first mounting hole 111, the second mounting hole 112, and the third mounting hole 113 each extend in an up-down direction and penetrate through the cross beam body 11. The temperature sensor connector bracket 2 can be installed in the first installation hole 111 by welding or gluing, the rear drive connector bracket 3 can be installed in the second installation hole 112 by welding or gluing, and the water gap bracket 4 can be installed in the third installation hole 113 by welding or gluing.

Alternatively, as shown in fig. 2 and 3, the fifth mounting hole 122 extends in the front-rear direction and penetrates through the side member body 12, the fifth mounting hole 122 includes an explosion-proof valve hole portion and a ventilation valve hole portion, the explosion-proof valve bracket 5 includes an explosion-proof valve portion that can be mounted in the explosion-proof valve hole portion by welding or gluing, and a ventilation valve portion that can be mounted in the ventilation valve hole portion by welding or gluing. And, explosion-proof valve portion and ventilative valve portion all are equipped with the screw hole to the installation of explosion-proof valve and ventilative valve is convenient for.

Further, as shown in fig. 2 and 3, there are two fifth mounting holes 122 and two explosion-proof valve brackets 5, two fifth mounting holes 122 correspond to two explosion-proof valve brackets 5 one by one, and the two fifth mounting holes 122 are distributed at intervals in the left-right direction.

Alternatively, as shown in fig. 2 and 3, there are two protective brackets (not shown in the drawings), there are four fourth mounting holes 121, and the four fourth mounting holes 121 are divided into two groups, two groups of fourth mounting holes 121 correspond to the two protective brackets one to one, and two groups of fourth mounting holes 121 correspond to the two fifth mounting holes 122 one to one. Taking one set of the fourth mounting holes 121 as an example, two fourth mounting holes 121 are respectively located at the left and right sides of the corresponding fifth mounting hole 122, and the two fourth mounting holes 121 are simultaneously used for fixing the corresponding protection bracket.

In some embodiments, as shown in fig. 1 to 3, the connection part includes: a sleeve 114, a plurality of connection bosses 123, a first threaded hole, a second threaded hole, and a third threaded hole. Wherein the first, second and third threaded holes are not shown in the figures.

The sleeve 114 penetrates through the beam body 11 and protrudes out of the lower surface of the beam body 11, and the lower end face of the sleeve 114 is a battery pack mounting surface. Alternatively, as shown in fig. 1 to 3, the sleeve 114 is disposed in the up-down direction, and the lower end of the sleeve 114 is located below the cross beam body 11. It can be understood that the lower end surface of the sleeve 114 is a battery pack mounting surface, and the sleeve 114 is used for mounting a bolt to connect the beam body 11 with a vehicle body, that is, the bolt penetrates through a central through hole of the sleeve 114, an upper end surface of a convex edge of the bolt abuts against a lower end surface of the sleeve 114, and an upper end of the bolt is in threaded connection with the vehicle body.

The connecting bosses 123 are connected with the lower end of the longitudinal beam body 12 and arranged on the same side of the cross beam body 11, and the plurality of connecting bosses 123 are arranged at intervals along the length direction of the longitudinal beam body 12. Alternatively, as shown in fig. 1 to fig. 3, the rear end of the connecting boss 123 is connected to the rear end face of the longitudinal beam body 12, the connecting boss 123 may be implemented by integrally extruding a longitudinally connected body, or may be formed by a die and then connected to the longitudinal beam body 12 by welding. The plurality of connection bosses 123 are spaced apart in the left-right direction, and the connection bosses 123 are used to mount a fender of a vehicle.

The first threaded hole is formed in the top of the cross beam body 11 to be connected with the upper cover through a bolt, the second threaded hole is formed in the top of the longitudinal beam body 12 to be connected with the upper cover through a bolt, and the third threaded hole is formed in the bottom of the longitudinal beam body 12 to be connected with the bottom protection plate through a bolt. It can be understood that the first threaded hole is used for connecting the beam body 11 and the upper cover, the second threaded hole is used for connecting the longitudinal beam body 12 and the upper cover, and the third threaded hole is used for connecting the longitudinal beam body 12 and the bottom protection plate.

In some embodiments, as shown in fig. 1 to 3, the beam body 11 has a cavity therein, a lower surface of a top plate of the beam body 11 is provided with a first boss 115, and a first threaded hole is provided in the top plate of the beam body 11 and penetrates through the first boss 115. The inside die cavity that has of longeron body 12, the lower surface of longeron body 12 roof is equipped with second boss 124, and the second screw hole is established on the roof of longeron body 12 and is run through second boss 124, and the upper surface of longeron body 12 bottom plate is equipped with third boss 125, and the third screw hole is established on the bottom plate of longeron body 12 and is run through third boss 125.

Alternatively, as shown in fig. 1, the beam body 11 includes a beam top plate, a beam bottom plate, and a beam rear plate, the rear end of the beam top plate is connected to the upper end of the beam rear plate, and the rear end of the beam bottom plate is connected to the lower end of the beam rear plate. The longitudinal beam body 12 comprises a longitudinal beam top plate, a longitudinal beam bottom plate, a longitudinal beam front plate and a longitudinal beam rear plate, the front end of the longitudinal beam top plate is connected with the upper end of the longitudinal beam front plate, the rear end of the longitudinal beam top plate is connected with the upper end of the longitudinal beam rear plate, the front end of the longitudinal beam bottom plate is connected with the lower end of the longitudinal beam front plate, and the rear end of the longitudinal beam bottom plate is connected with the lower end of the longitudinal beam rear plate. The front end of the beam top plate and the front end of the beam bottom plate are connected with the rear end face of the longitudinal beam rear plate.

Therefore, the beam top plate, the beam bottom plate and the beam rear plate jointly enclose a beam body 11 with a cavity, and the left end and the right end of the cavity of the beam body 11 are provided with openings. The longitudinal beam top plate, the longitudinal beam bottom plate, the longitudinal beam front plate and the longitudinal beam rear plate jointly enclose a longitudinal beam body 12 with a cavity, and openings are formed in the left end and the right end of the cavity of the longitudinal beam body 12.

Alternatively, as shown in fig. 1 to 3, the first boss 115 is located in the cavity of the beam body 11, the first boss 115 extends in the left-right direction, and the left and right ends of the first boss 115 are flush with the left and right ends of the beam top plate. The first screw hole extends in the up-down direction and penetrates the cross beam top plate and the first boss 115. Further, the first screw hole has a plurality ofly, and a plurality of first screw holes are along left and right direction interval distribution. The first bosses 115 are plural, and the plural first bosses 115 are spaced apart in the front-rear direction.

Alternatively, as shown in fig. 1 to 3, the second boss 124 and the third boss 125 are both located in the cavity of the longitudinal beam body 12, the second boss 124 and the third boss 125 both extend in the left-right direction, the left end and the right end of the second boss 124 are flush with the left end and the right end of the longitudinal beam top plate, and the left end and the right end of the third boss 125 are flush with the left end and the right end of the longitudinal beam bottom plate. The second screw hole extends in the up-down direction and penetrates the side member top plate and the second boss 124, and the third screw hole extends in the up-down direction and penetrates the side member bottom plate and the third boss 125. Furthermore, the second screw hole has a plurality ofly, and a plurality of second screw holes are along left and right direction interval distribution. The third screw hole has a plurality ofly, and a plurality of third screw holes are along left and right direction interval distribution.

It can be understood that the utility model discloses rear frame member only thickens out the boss in the part of seting up the screw hole to ensure threaded connection's reliability. The design of whole thickening is compared, the utility model discloses the design of the first boss 115 of rear frame member, second boss 124 and third boss 125 has alleviateed whole weight.

In some embodiments, as shown in fig. 1 to 3, a first reinforcing rib 116 is provided in the cavity of the beam body 11; and/or a second reinforcing rib 126 is arranged in the cavity of the longitudinal beam body 12.

Optionally, a first reinforcing rib 116 is arranged in the cavity of the cross beam body 11, or a second reinforcing rib 126 is arranged in the cavity of the longitudinal beam body 12, or as shown in fig. 1, a first reinforcing rib 116 is arranged in the cavity of the cross beam body 11, and a second reinforcing rib 126 is also arranged in the cavity of the longitudinal beam body 12.

It can be understood that, because the mounting area of the battery pack is stressed greatly, the first reinforcing rib 116 is arranged in the cavity of the beam body 11, and the structural strength of the mounting area of the battery pack is improved by arranging the first reinforcing rib 116. Through set up second strengthening rib 126 in the die cavity of longeron body 12, can effectual improvement longeron body 12 structural strength, improve the protective capacities to the battery package after the emergence collision of vehicle.

In some embodiments, as shown in fig. 1 to 3, the upper end of the first reinforcing bead 116 is connected to the top plate of the cross beam body 11, and the lower end of the first reinforcing bead 116 is connected to the bottom plate of the cross beam body 11. The first reinforcing ribs 116 are plural, and the plural first reinforcing ribs 116 are arranged at intervals in the width direction (front-rear direction in fig. 1) of the cross beam body 11. Further, the first reinforcing bead 116 extends in the left-right direction, and the left and right ends of the first reinforcing bead 116 are flush with the two ends of the cross beam body 11.

In some embodiments, as shown in fig. 1, a first end of the second reinforcing bead 126 is coupled to the inner side panel of the stringer body 12, a second end of the second reinforcing bead 126 is coupled to the outer side panel of the stringer body 12, and the first end and the second end of the second reinforcing bead 126 are at different heights. The second reinforcing rib 126 is plural, and the plural second reinforcing ribs 126 are sequentially arranged in the vertical direction to form a Z-shaped supporting structure. Further, the second reinforcing bead 126 extends in the left-right direction, and left and right ends of the second reinforcing bead 126 are flush with both ends of the side member body 12.

Alternatively, as shown in fig. 1, there are three second reinforcing ribs 126, and the three second reinforcing ribs 126 are sequentially arranged in the up-down direction to form a Z-shaped support structure. That is, the upper end of the uppermost second bead 126 is connected to the back side member plate, and the lower end of the uppermost second bead 126 is connected to the front side member plate and the upper end of the intermediate second bead 126. The upper end of the second reinforcing bead 126 in the middle is also connected to the front panel of the side member, and the lower end of the second reinforcing bead 126 in the middle is connected to the rear panel of the side member and the upper end of the second reinforcing bead 126 at the lowermost position. The upper end of the second reinforcing rib 126 positioned at the lowest position is also connected with the rear plate of the longitudinal beam, and the lower end of the second reinforcing rib 126 positioned at the lowest position is connected with the front plate of the longitudinal beam.

In some embodiments, as shown in fig. 1, the upper surface of the stringer body 12 is provided with a sealing groove 128 for applying a sealant. It will be appreciated that the seal between the stringer body 12 and the upper cover is achieved by applying a sealant within the seal groove 128.

In some embodiments, as shown in fig. 1, a step 127 is provided on the lower surface of the longitudinal beam body 12, the lower surface of the longitudinal beam body 12 is a bottom protection plate connecting surface, and the lower surface of the step 127 is a water-cooling plate connecting surface.

Optionally, as shown in fig. 1, a step 127 is located at the intersection of the stringer front panel and the stringer base panel. It can be understood that, in the battery pack, the water-cooling plate is placed above the bottom protective plate, and the size of the water-cooling plate is smaller than that of the bottom protective plate. The lower surface of the stringer body 12 is adapted to be connected to the upper surface of the apron plate and the lower surface of the step 127 is adapted to be connected to the upper surface of the water-cooled plate. The step 127 and the water cooling plate may be connected by friction welding or FDS thermal welding.

The utility model discloses battery package casing (not shown in the figure) includes: the battery pack comprises an upper cover, a bottom guard plate, a left beam, a right beam, a front beam and a rear beam in any one of the embodiments, wherein the upper cover, the bottom guard plate, the left beam, the right beam, the front beam and the rear beam are connected to form a battery pack shell which is substantially rectangular.

Optionally, the bottom guard plate is located below the upper cover, the left cross beam is located at the left side of the upper cover, the right cross beam is located at the right side of the upper cover, the front cross beam is located at the front side of the upper cover, and the rear cross beam is located at the rear side of the upper cover. The upper end of the left cross beam is connected with the left end of the upper cover, and the lower end of the left cross beam is connected with the left end of the bottom guard plate. The upper end of the right beam is connected with the right end of the upper cover, and the lower end of the right beam is connected with the right end of the bottom guard plate. The upper end of the front cross beam is connected with the front end of the upper cover, and the lower end of the front cross beam is connected with the front end of the bottom guard plate. The upper end of the rear cross beam is connected with the rear end of the upper cover, and the lower end of the rear cross beam is connected with the rear end of the bottom guard plate.

The vehicle (not shown in the figure) of the embodiment of the present invention includes the battery pack case in the above embodiment.

In the description of the present invention, it is to 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", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims (11)

1. The utility model provides a rear cross beam, its characterized in that includes roof beam body and a plurality of support that is used for connecting functional device, be equipped with a plurality of mounting holes on the roof beam body, it is a plurality of the support one-to-one is installed in the mounting hole, still be equipped with the connecting portion that are used for connecting automobile body, upper cover and end backplate on the roof beam body.

2. The rear cross beam of claim 1, wherein the beam body comprises a cross beam body and a longitudinal beam body, the longitudinal beam body is vertically arranged, the cross beam body is horizontally arranged and connected to the upper end of the longitudinal beam body, and the mounting holes are formed in the cross beam body and/or the longitudinal beam body.

3. The rear cross member of claim 2, wherein the bracket comprises:

the temperature sensor connector support is arranged in the first mounting hole;

the rear-drive connector bracket is arranged in the second mounting hole;

the water gap support is installed in the third installation hole and is provided with a water inlet and a water outlet;

the longitudinal beam body is provided with a fourth mounting hole and a fifth mounting hole, and the protective bracket is mounted in the fourth mounting hole;

and the explosion-proof valve bracket is arranged in the fifth mounting hole.

4. The rear cross member of claim 2, wherein the connection portion comprises:

the sleeve penetrates through the beam body and protrudes out of the lower surface of the beam body, and the lower end face of the sleeve is a battery pack mounting surface;

the connecting bosses are connected with the lower end of the longitudinal beam body and arranged on the same side of the cross beam body, and the connecting bosses are arranged at intervals along the length direction of the longitudinal beam body;

the first threaded hole is formed in the top of the beam body and is connected with the upper cover through a bolt;

the second threaded hole is formed in the top of the longitudinal beam body and is connected with the upper cover through a bolt;

and the third threaded hole is formed in the bottom of the longitudinal beam body so as to be connected with the bottom protection plate through a bolt.

5. The rear cross beam of claim 4, wherein the cross beam body is internally provided with a cavity, the lower surface of the top plate of the cross beam body is provided with a first boss, and the first threaded hole is formed in the top plate of the cross beam body and penetrates through the first boss;

the inner part of the longitudinal beam body is provided with a cavity, the lower surface of the top plate of the longitudinal beam body is provided with a second boss, a second threaded hole is formed in the top plate of the longitudinal beam body and penetrates through the second boss, the upper surface of the bottom plate of the longitudinal beam body is provided with a third boss, and a third threaded hole is formed in the bottom plate of the longitudinal beam body and penetrates through the third boss.

6. The rear cross member according to claim 5, wherein a first reinforcing rib is arranged in the cavity of the cross member body;

and/or a second reinforcing rib is arranged in the cavity of the longitudinal beam body.

7. The rear cross beam of claim 6, wherein the upper end of the first reinforcing rib is connected with the top plate of the cross beam body, the lower end of the first reinforcing rib is connected with the bottom plate of the cross beam body, the number of the first reinforcing ribs is multiple, and the first reinforcing ribs are arranged at intervals along the width direction of the cross beam body;

the first end of the second reinforcing rib is connected with the inner side plate of the longitudinal beam body, the second end of the second reinforcing rib is connected with the outer side plate of the longitudinal beam body, the first end and the second end of the second reinforcing rib are different in height, the second reinforcing rib is multiple, and the second reinforcing ribs are sequentially arranged in the vertical direction to form a Z-shaped supporting structure.

8. The rear cross member according to claim 6, wherein the upper surface of the longitudinal beam body is provided with a sealing groove for applying a sealant.

9. The rear cross beam as claimed in claim 2, wherein a step is arranged on the lower surface of the longitudinal beam body, the lower surface of the longitudinal beam body is a bottom guard plate connecting surface, and the lower surface of the step is a water cooling plate connecting surface.

10. A battery pack housing, comprising: the battery pack comprises an upper cover, a bottom guard plate, a left cross beam, a right cross beam, a front cross beam and the rear cross beam according to any one of claims 1-9, wherein the upper cover, the bottom guard plate, the left cross beam, the right cross beam, the front cross beam and the rear cross beam are connected to form the battery pack shell which is substantially rectangular.

11. A vehicle characterized in that the vehicle comprises the battery pack case according to claim 10.

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