CN211918827U - Automobile body support, automobile body support subassembly and electric automobile with fixed back beam - Google Patents

Abstract

The utility model discloses an automobile body support, automobile body bracket component and electric automobile with fixed back beam. The automobile body support is used for connecting and installing the battery pack on an electric automobile chassis, and comprises a support body and a rear beam, wherein the support body comprises a front beam and two oppositely-arranged longitudinal beams, and the front beam is connected between the two longitudinal beams so that the support body is formed into an open structure with an opening. The back beam is arranged above the bracket body, and two ends of the back beam are respectively and fixedly connected with one end of the two longitudinal beams far away from the front beam, so that the back beam is fixedly connected with the opening. The vehicle body bracket assembly comprises a battery and a vehicle body bracket. The electric vehicle comprises a chassis and a body support assembly. The structure of the vehicle body support is simple. Accordingly, the structure of the body support assembly and the electric automobile is simpler.

Description

Automobile body support, automobile body support subassembly and electric automobile with fixed back beam

Technical Field

The utility model relates to an electric automobile field, in particular to automobile body support, automobile body bracket component and electric automobile with fixed back beam.

Background

The electric automobile replaces oil with electricity, can realize zero emission and low noise, and is an important means for solving the problems of energy and environment. With the shortage of petroleum resources and the development of battery technology, the performance and the economical efficiency of electric vehicles are close to or even better than those of traditional fuel vehicles, and the electric vehicles are gradually popularized and applied worldwide. A new generation of energy-saving and environment-friendly automobiles represented by electric automobiles is a necessary trend in the development of the automobile industry. As an important premise and foundation for large-scale popularization and application of electric automobiles, development of electric automobile battery charging and replacing technology and construction of electric automobile battery charging and replacing facilities attract extensive attention of all parties.

For the electric vehicle of the power exchange type, the battery needs to be replaced regularly or irregularly, the vehicle body bracket is an important component of the electric vehicle, the battery pack is fixed on the vehicle body bracket, and the vehicle body bracket is connected to a chassis of the electric vehicle.

In the prior art, the body mount is typically provided as a unitary structure. On one hand, the vehicle body bracket occupies a larger space when being transported or stored; on the other hand, when a certain portion of the vehicle body bracket (e.g., the portion where the locking mechanism is provided) is damaged, the vehicle body bracket needs to be replaced as a whole, which results in high maintenance cost. In addition, in the prior art, the structure of the body mount is generally complicated.

From the above, the vehicle body support in the prior art has the defects of complex structure, inconvenience in transportation and high maintenance cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an automobile body support, automobile body bracket component and electric automobile with fixed back beam in order to overcome the comparatively complicated defect of structure of automobile body support among the prior art.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a vehicle body bracket with a fixed type back beam is used for connecting and installing a battery pack on a chassis of an electric vehicle and is characterized by comprising a bracket body and the back beam, wherein the bracket body comprises a front beam and two longitudinal beams which are oppositely arranged, and the front beam is connected between the two longitudinal beams so that the bracket body is formed into an open structure with an opening;

the back beam is arranged above the support body, and two ends of the back beam are respectively and fixedly connected to one ends, far away from the front beam, of the two longitudinal beams, so that the back beam is fixedly connected to the opening.

In this scheme, back beam and support body fixed connection, the back beam can enough play the fixed action to the support body, is convenient for realize being connected on support body and chassis again, and in addition, the structure of the automobile body support including above-mentioned back beam and support body is comparatively simple.

Preferably, the rear beam comprises a horizontal extension part and a vertical extension part, and two ends of the horizontal extension part are respectively fixedly connected with the longitudinal beam through the vertical extension part.

Preferably, the vertical extension part is welded with the longitudinal beam.

In this scheme, adopt to weld the connection, the connected mode is simple and reliable.

Preferably, the horizontal extension part and the vertical extension part are connected by a bending part.

Preferably, the vertical extension part is of a tubular structure, the vertical extension part is connected to the longitudinal beam through a connecting plate, the connecting plate is connected to one end, close to the bracket body, of the vertical extension part, and the connecting plate is pressed on the longitudinal beam.

In this solution, the wall thickness of the tubular structure is small, and if the vertical extension portion is directly connected to the longitudinal beam, the contact area between the vertical extension portion and the longitudinal beam is small, which is not convenient for realizing the connection between the vertical extension portion and the longitudinal beam, and in addition, even if the vertical extension portion and the longitudinal beam are connected together, the reliability is relatively poor. By adopting the structure, the connecting plate is additionally arranged between the vertical extending part and the longitudinal beam, so that the contact area between the vertical extending part and the longitudinal beam is increased, the connection is convenient, and the reliability after the connection is higher.

Preferably, the connecting plate includes end to end's first connecting portion and second connecting portion, first connecting portion connect in vertical extension portion and pressure are located the top of longeron, the second connecting portion along the lateral wall extension of longeron to laminate in the lateral wall of longeron.

In this scheme, first connecting portion can enough play the effect of being convenient for realize the connection of vertical extension and longeron, also can play the effect of the reliability of being connected of the vertical extension of increase and longeron. For the second connecting part, the second connecting part can play a role in positioning and limiting, and reliable connection between the vertical extending part and the longitudinal beam is facilitated.

Preferably, the horizontal extension part and the vertical extension part are detachably connected or integrally formed.

In this scheme, horizontal extension portion can be dismantled with vertical extension portion and be connected, if horizontal extension portion or vertical extension portion damage, also convenient the change, only need change corresponding component can, and need not wholly change the back beam, be favorable to reduce cost. The horizontal extension part and the vertical extension part are integrally formed, and the horizontal extension part and the vertical extension part are connected together without using an additional connecting structure, so that the overall weight of the vehicle body support is reduced.

Preferably, a locking mechanism is mounted on a side wall of the longitudinal beam, which is used for facing the battery pack, and the locking mechanism is used for locking and fixing the battery pack.

Preferably, the longitudinal beam is further provided with an upper in-place sensor and a front in-place sensor, the upper in-place sensor is used for detecting whether the battery pack is installed in place relative to the longitudinal beam along the height direction of the longitudinal beam, and the front in-place sensor is used for detecting whether the battery pack is installed in place relative to the longitudinal beam along the length direction of the longitudinal beam.

In the scheme, the upper in-place sensor and the front in-place sensor can detect whether the battery pack is installed in place relative to the longitudinal beam, and the installation reliability of the battery pack is improved.

Preferably, the longitudinal beam is formed by detachably connecting three split structures, and comprises a first split structure, a second split structure and a third split structure which are detachably connected in sequence;

the first split structure is fixedly connected to the rear beam, and the third split structure is connected to the front beam;

the vehicle body support further comprises a locking mechanism, the locking mechanism is used for locking and fixing the battery pack, and the locking mechanism is arranged on one side, facing the battery pack, of the second split structure.

In the scheme, the longitudinal beam is formed by splicing three split structures, so that on one hand, the split structures occupy smaller space during transportation or storage, the requirements on transportation and storage are lower, and the transportation and storage cost is favorably reduced; on the other hand, when a certain part is damaged, only the corresponding damaged part can be replaced, the whole longitudinal beam does not need to be replaced, and replacement and manufacturing cost can be reduced. In addition, the locking mechanism is used for realizing locking and fixing of the battery pack, and the structure for realizing the function is arranged in the same split structure positioned in the middle part, so that the locking and fixing of the battery pack are realized, and the reliability of locking and fixing is guaranteed.

Preferably, the vehicle body support further comprises a positioning mechanism, the positioning mechanism is used for positioning the battery pack, and the positioning mechanism is arranged on one side, facing the battery pack, of the first split structure and/or the third split structure.

In this scheme, positioning mechanism is located the tip of automobile body support, when with battery package and automobile body support, is convenient for realize the location to the battery package.

Preferably, the positioning mechanism is a positioning seat, the positioning seat is provided with an opening and a cavity extending from the opening, and the opening is used for allowing a lock shaft mounted on the battery pack to enter the cavity.

Preferably, the longitudinal beam is provided with a vehicle body mounting plate and a battery pack fixing plate, the battery pack fixing plate is used for mounting and fixing a battery pack, and the vehicle body mounting plate is used for connecting the chassis.

Preferably, the automobile body mounting panel includes first mounting panel and first connecting plate, first mounting panel be used for connecting and install in the chassis, the battery package fixed plate includes second mounting panel and second connecting plate, the second mounting panel is used for connecting and installs the battery package, the one end of second connecting plate with the top of second mounting panel is connected, first connecting plate connect in the other end of second connecting plate with between the first connecting plate mounting panel, first mounting panel with the vertical distance of the bottom of second mounting panel is less than the vertical height of second mounting panel.

In this scheme, the cross sectional shape of longeron is similar to be the T type, adopts above-mentioned structure setting, is equivalent to that first mounting panel is located the middle part of second mounting panel (not being equivalent to the central part) to when making first mounting panel connect in the chassis, can reduce the distance between chassis and the locking mechanism, be favorable to improving rigidity, and then be favorable to improving the fixed effect of battery package.

Preferably, the end of the back beam is pressed on the top of the second connecting plate, and the end of the back beam is fixedly connected with the second connecting plate through welding connection.

In this scheme, the back beam is connected in the top of second connecting plate, and it is comparatively convenient to connect, and is lower to the requirement of back beam.

Preferably, the end part of the back beam is pressed on the top of the first mounting plate, and the end part of the back beam is fixedly connected with the first mounting plate through welding connection;

or, the end connection of first mounting panel has intermediate junction plate, the lateral wall of the tip of back beam laminate in intermediate junction plate, just the back beam pass through welded connection with intermediate junction plate fixed connection.

In this scheme, the back beam is connected to the first mounting panel, and the back beam both can be connected to the top of first mounting panel, also can be connected to the tip of first mounting panel. Wherein, if connected to the top of the first mounting plate, the vertical extension needs to extend to the top of the first mounting plate; if the connection is made to the end of the first mounting plate, the vertical extension also needs to extend to the end of the first mounting plate, and in addition, since the end of the first mounting plate has a small cross section, the above-mentioned intermediate connection plate is generally required to ensure the reliability of the connection.

Preferably, the side wall of the end of the back beam is attached to the second mounting plate, and the end of the back beam is fixedly connected with the second mounting plate through welding.

In this scheme, the back beam is connected in the second mounting panel, and it is also comparatively convenient to connect.

The utility model also provides an automobile body bracket component, including the battery package, its characteristics lie in, automobile body bracket component still includes the above-mentioned automobile body support that has fixed back beam, the battery package is located in the open structure.

The utility model also provides an electric automobile, including the chassis, its characteristics lie in, electric automobile still includes above-mentioned automobile body bracket component, automobile body bracket component connect in the chassis.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

in this automobile body support, back beam and support body fixed connection, the back beam can enough play the fixed action to the support body, is convenient for realize being connected of support body and chassis again, and in addition, the structure of the automobile body support including above-mentioned back beam and support body is comparatively simple. Accordingly, the structure of the body support assembly and the electric automobile is simpler.

Drawings

Fig. 1 is a schematic view of an overall structure of a body frame with a fixed rear beam according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a part of the structure of the body frame with a fixed rear beam according to a preferred embodiment of the present invention, showing a positioning mechanism and also showing the connection between the rear beam and the longitudinal beam.

Fig. 3 is a schematic partial structural view of a body frame with a fixed rear beam according to a preferred embodiment of the present invention, showing the connection between the rear beam and the longitudinal beam.

Fig. 4 is a partial structural schematic view of a longitudinal beam in a vehicle body frame according to a preferred embodiment of the present invention.

Fig. 5 is another schematic structural view of a longitudinal beam in a vehicle body frame according to a preferred embodiment of the present invention.

Fig. 6 is a schematic view illustrating a connection between a longitudinal beam and a locking structure in a vehicle body frame according to a preferred embodiment of the present invention.

Description of reference numerals:

10 vehicle body mounting plate

101 first mounting plate

102 first connecting plate

103 first raised portion

104 second raised portion

1041 mounting hole

20 battery pack fixing plate

201 second mounting plate

202 second connecting plate

30 crossbeam

40 rear beam

401 horizontal extension part

402 vertical extension

403 bent part

404 first connection part

405 second connection part

406 connecting plate

50 locking mechanism

60 positioning mechanism

Detailed Description

The present invention will be further described by way of examples with reference to the accompanying drawings, but the present invention is not limited thereto.

The present embodiment discloses a vehicle body bracket having a fixed type rear beam 40 for connecting and mounting a battery pack to a chassis of an electric vehicle, as shown in fig. 1 to 6, and includes a bracket body including a front beam and two side beams disposed opposite to each other, and a rear beam 40, the front beam being connected between the two side beams so that the bracket body is formed into an open structure having an opening. The back beam 40 is arranged above the bracket body, and two ends of the back beam 40 are respectively and fixedly connected to one end of the two longitudinal beams far away from the front beam, so that the back beam 40 is fixedly connected to the opening.

In this embodiment, the back beam 40 is fixedly connected with the bracket body, the back beam 40 can fix the bracket body and is convenient for connecting the bracket body with the chassis, and in addition, the structure of the vehicle body bracket comprising the back beam 40 and the bracket body is simpler.

As shown in fig. 1 to 3, the back beam 40 includes a horizontal extension 401 and a vertical extension 402, and both ends of the horizontal extension 401 are respectively fixedly connected to the longitudinal beams through the vertical extensions 402.

Specifically, in the present embodiment, the vertical extension 402 is welded to the side member. And the welding connection is adopted, so that the connection mode is simple and reliable.

As will be understood with reference to fig. 1-3, the horizontal extension 401 and the vertical extension 402 are connected by a bend 403.

In this embodiment, the vertical extension 402 is a tubular structure, the vertical extension 402 is connected to the longitudinal beam through a connecting plate 406, the connecting plate 406 is connected to one end of the vertical extension 402 close to the bracket body, and the connecting plate 406 is pressed to the longitudinal beam.

Wherein the wall thickness of the tubular structure is small, if the vertical extension 402 is directly connected to the longitudinal beam, the contact area between the vertical extension 402 and the longitudinal beam is small, which is inconvenient for realizing the connection between the vertical extension 402 and the longitudinal beam, and in addition, even if the vertical extension 402 and the longitudinal beam are connected together, the reliability is relatively poor. By adopting the structure, the connecting plate 406 is additionally arranged between the vertical extension part 402 and the longitudinal beam, so that the contact area between the vertical extension part 402 and the longitudinal beam is increased, the connection is convenient, and the reliability after the connection is higher.

As will be appreciated with continued reference to fig. 1-3, the connecting plate 406 includes a first connecting portion 404 and a second connecting portion 405 connected end to end, the first connecting portion 404 being connected to the vertically extending portion 402 and pressed against the top of the stringer, and the second connecting portion 405 extending along and abutting the side walls of the stringer.

The first connecting portion 404 can serve to facilitate the connection between the vertical extension 402 and the longitudinal beam, and also to increase the connection reliability between the vertical extension 402 and the longitudinal beam. For the second connecting portion 405, the second connecting portion 405 can play a role in positioning and limiting, so that reliable connection between the vertical extending portion 402 and the longitudinal beam is achieved.

In the present embodiment, the horizontal extension 401 and the vertical extension 402 are integrally molded. In fact, due to the presence of the bent portion 403, the horizontal extension portion 401, the bent portion 403 and the vertical extension portion 402 are integrally formed. With the arrangement, the horizontal extension part 401, the vertical extension part 402 and the bent part 403 are connected together without using an additional connecting structure, which is beneficial to reducing the overall weight of the vehicle body bracket.

In other alternative embodiments, the horizontal extension portion 401, the vertical extension portion 402 and the bent portion 403 may be detachably connected. If the horizontal extension portion 401, the vertical extension portion 402 or the bending portion 403 is damaged, the replacement is also convenient, only corresponding elements need to be replaced, and the rear beam 40 does not need to be replaced integrally, which is beneficial to reducing the cost.

As shown in fig. 1, 3 and 6, a locking mechanism 50 is mounted on a side wall of the side member facing the battery pack, and the locking mechanism 50 is used for locking and fixing the battery pack. The longitudinal beam is also provided with an upper in-place sensor and a front in-place sensor, the upper in-place sensor is used for detecting whether the battery pack is installed in place relative to the longitudinal beam along the height direction of the longitudinal beam, and the front in-place sensor is used for detecting whether the battery pack is installed in place relative to the longitudinal beam along the length direction of the longitudinal beam. The upper in-place sensor and the front in-place sensor can detect whether the battery pack is installed in place relative to the longitudinal beam, and the installation reliability of the battery pack is improved.

It should be noted that the locking mechanism 50 shown in fig. 1, 3, and 6 is only one of the locking mechanisms schematically shown. In fact, the locking mechanism includes a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is a primary locking mechanism for locking and fixing the battery, and the primary locking mechanism can be referred to as "locking device" disclosed in chinese patent application with publication number CN 106427514A; the second locking mechanism is a second-stage locking mechanism, can provide a locking protection function for the battery pack, and can be used for preventing the battery pack from falling when the first locking mechanism is locked to fail, so that the safety performance is improved. Among these, the locking mechanism 50 shown in fig. 1, 3, and 6 is a corresponding two-stage locking mechanism. In addition, in the present embodiment, the side member is formed by detachably connecting three split structures, and includes a first split structure, a second split structure, and a third split structure, which are detachably connected in this order. Wherein, the first split structure is fixedly connected to the rear beam 40, and the third split structure is connected to the front beam. The locking mechanism 50 is provided on the side of the second split structure for facing the battery pack.

The longitudinal beam is formed by splicing three split structures, so that on one hand, the split structures occupy smaller space during transportation or storage, the requirements on transportation and storage are lower, and the transportation and storage cost is reduced; on the other hand, when a certain part is damaged, only the corresponding damaged part can be replaced, the whole longitudinal beam does not need to be replaced, and replacement and manufacturing cost can be reduced. In addition, the locking mechanism 50 is used for realizing locking and fixing of the battery pack, and the structure for realizing the function is arranged in the same split structure positioned in the middle part, so that the locking and fixing of the battery pack are favorably realized, and the reliability of the locking and fixing is favorably ensured.

As shown in fig. 1-2, the body mount further includes a positioning mechanism 60, the positioning mechanism 60 is used for positioning the battery pack, and the positioning mechanism 60 is disposed on one side of the first split structure and/or the third split structure, which is used for facing the battery pack.

The positioning mechanism 60 is located at the end of the vehicle body support, and when the battery pack and the vehicle body support are used, the battery pack is conveniently positioned.

Specifically, in the present embodiment, the positioning mechanism 60 is a positioning seat, and the positioning seat is provided with an opening and a cavity extending from the opening, wherein the opening is used for allowing the lock shaft mounted on the battery pack to enter the cavity.

As shown in fig. 1 to 6, the longitudinal beam has a vehicle body mounting plate 10 and a battery pack fixing plate 20, the battery pack fixing plate 20 is used for mounting and fixing a battery pack, and the vehicle body mounting plate 10 is used for connecting a chassis. The vehicle body mounting plate 10 comprises a first mounting plate 101 and a first connecting plate 102, the first mounting plate 101 is used for being connected and mounted on a chassis, the battery pack fixing plate 20 comprises a second mounting plate 201 and a second connecting plate 202, the second mounting plate 201 is used for being connected and mounting a battery pack, one end of the second connecting plate 202 is connected with the top end of the second mounting plate 201, the first connecting plate 102 is connected between the other end of the second connecting plate 202 and the first connecting plate 102 mounting plate, and the vertical distance between the first mounting plate 101 and the bottom end of the second mounting plate 201 is smaller than the vertical height of the second mounting plate 201.

Wherein, the cross-sectional shape of longeron is similar for the T type, adopts above-mentioned structural setting, is equivalent to first mounting panel 101 and is located the middle part (not being equivalent to the central part) of second mounting panel 201 to when making first mounting panel 101 connect in the chassis, can reduce the distance between chassis and the locking mechanism 50, be favorable to improving rigidity, and then be favorable to improving the fixed effect of battery package.

In the present embodiment, as shown in fig. 1 to 3, the end portion (vertical extension 402) of the back beam 40 is pressed on the top of the second connection plate 202, and the end portion of the back beam 40 is fixedly connected to the second connection plate 202 by a welded connection. So set up, back beam 40 connects in the top of second connecting plate 202, and it is comparatively convenient to connect, and requires lowly to back beam 40.

In other alternative embodiments, the end of the rear beam 40 may also be connected to the first mounting plate 101. The method specifically comprises the following steps: the tip of back beam 40 is pressed and is located the top of first mounting panel 101, and the tip of back beam 40 passes through welded connection and first mounting panel 101 fixed connection. Can also be set as follows: the end of the first mounting plate 101 is connected with an intermediate connection plate 406, the side wall of the end of the back beam 40 is attached to the intermediate connection plate 406, and the back beam 40 is fixedly connected with the intermediate connection plate 406 by welding.

Here, when the back beam 40 is attached to the first mounting plate 101, the back beam 40 may be attached to the top of the first mounting plate 101 or the end of the first mounting plate 101. Wherein, if connected to the top of the first mounting plate 101, the vertical extension 402 needs to extend to the top of the first mounting plate 101; the vertical extension 402 also needs to extend to the end of the first mounting board 101 when connected to the end of the first mounting board 101, and the intermediate connection plate 406 is generally required to ensure the connection reliability because the end of the first mounting board 101 has a small cross section.

In another alternative embodiment, the end of the rear beam 40 may also be connected to the second mounting plate 201. The method specifically comprises the following steps: the side wall of the end of the back beam 40 is attached to the second mounting plate 201, and the end of the back beam 40 is fixedly connected to the second mounting plate 201 by welding.

As shown in fig. 4-6, a first angle is formed between the first mounting plate 101 and the first connecting plate 102, a second angle is formed between the second mounting plate 201 and the second connecting plate 202, and a third angle is formed between the first connecting plate 102 and the second connecting plate 202; the second included angle is 90 degrees, and the first included angle and the third included angle are both larger than or equal to 90 degrees and smaller than 180 degrees. So set up, be convenient for realize second connecting plate 202, first mounting panel 101 etc. and external component's connection to be convenient for realize the connection of body support and external component.

It should be noted that the preferred angle ranges of the first angle and the third angle are both 90 degrees to 120 degrees. So set up, both be favorable to guaranteeing the overall stability of automobile body support, be favorable to again realizing being connected of automobile body support and external component.

Specifically, in the present embodiment, the second connection plate 202 is parallel to the first mounting plate 101 so that the first included angle is equal to the third included angle. And the first included angle and the third included angle are both 120 degrees.

The vertical distance between the center position of the lock mechanism 50 and the first mounting plate 101 is 0. So set up, when first mounting panel 101 is connected in the chassis, the central point that chassis and locking mechanical system 50 put can be located same horizontal plane, and the vertical distance minimizing between the central point that chassis and locking mechanical system 50 put to can further improve rigidity, and then further improve the fixed effect of battery package.

In the present embodiment, an accommodating space is defined between the second mounting plate 201, the second connecting plate 202, the first connecting plate 102 and the first mounting plate 101. The second mounting plate 201 is further provided with a sensor fixing structure for fixing the in-place sensor and the front in-place sensor, and the sensor fixing structure is located in the accommodating space.

The sensor fixing structure, the upper in-place sensor and the front in-place sensor are all located in the accommodating space, and the accommodating space can protect the sensor fixing structure, the upper in-place sensor and the front in-place sensor, so that normal use of the front in-place sensor and the upper in-place sensor is guaranteed.

Specifically, the sensor fixing structure includes a mounting nut (not shown in the drawings) that is mounted on the second mounting plate 201 at a position corresponding to the locking mechanism 50 in a side for facing away from the battery pack.

Wherein, just can be with before the sensor that targets in place and on the sensor that targets in place comparatively reliably install second mounting panel 201 through a fastener and mounting nut cooperation, the structure is comparatively simple, and the space that occupies is less on second mounting panel 201, and then is favorable to simplifying the structure of automobile body support to and be favorable to realizing the lightweight of automobile body support.

As shown in fig. 4 to 6, the first mounting plate 101 is provided with a first projection 103 at a position corresponding to a position where the locking mechanism 50 is mounted on the second mounting plate 201. Wherein, for the first convex portion 103, in the height direction, the first convex portion 103 extends from the first mount board 101 along the height direction of the second mount board 201; in the longitudinal direction, the first protrusion 103 extends from the first mounting board 101 toward the direction approaching the second mounting board 201.

Wherein, first bellying 103 is located the one side of being connected with the chassis on first mounting panel 101, and first bellying 103 can play bed hedgehopping and dodge the effect, conveniently realizes the installation of locking mechanical system 50 and second mounting panel 201, is favorable to improving the packaging efficiency of automobile body support.

It should be noted that, in other alternative embodiments, the first protruding portion 103 is not limited to be disposed at a position corresponding to the locking mechanism, and actually, the first protruding portion 103 may be disposed at a position corresponding to other structures mounted to the second mounting plate 201 according to actual needs, for example, the first protruding portion 103 may also be disposed at a position corresponding to the above-mentioned positioning mechanism 60.

Specifically, in the present embodiment (see fig. 5), the top surface of the first projecting portion 103 is an arc surface. Wherein, the space that the cambered surface occupy is less, and smooth no edges and corners, can reduce or even avoid causing the damage to external element to, adopt above-mentioned structure setting, can conveniently realize the installation of locking mechanism 50 and second mounting panel 201 on the reduction causes the damage basis to external element.

As shown in fig. 1 and fig. 4 to 6, the first mounting plate 101 is provided with a plurality of second protrusions 104 at intervals along the longitudinal direction, and the plurality of second protrusions 104 extend from the first mounting plate 101 along the height direction of the second mounting plate 201. The top surfaces of the second protruding portions 104 are all flat surfaces, the first mounting plate 101 is connected to the chassis through the second protruding portions 104, and the top surfaces of the second protruding portions 104 are attached to the chassis.

In this embodiment, the arrangement of the second protruding portion 104 is beneficial to realizing reliable attachment of the first mounting plate 101 to the chassis, and is further beneficial to realizing the connection reliability of the first mounting plate 101 to the chassis.

As shown in fig. 1 and fig. 4 to 5, a mounting hole 1041 is provided at the top of each second protrusion 104, and the second protrusion 104 is used for being detachably connected with the chassis through the mounting hole 1041.

The present embodiment also discloses a vehicle body mount assembly that includes a battery pack and the vehicle body mount described above with the stationary rear beam 40, with the battery pack located within the open structure. On the basis that the structure of the vehicle body support is simpler, the structure of the vehicle body support component comprising the vehicle body support is also simpler.

The embodiment also discloses an electric automobile, which comprises a chassis and the body support assembly, wherein the body support assembly is connected to the chassis.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.

Claims (19)

1. A vehicle body bracket with a fixed type back beam is used for connecting and installing a battery pack on a chassis of an electric vehicle, and is characterized by comprising a bracket body and the back beam, wherein the bracket body comprises a front beam and two longitudinal beams which are oppositely arranged, and the front beam is connected between the two longitudinal beams so that the bracket body is formed into an open structure with an opening;

the back beam is arranged above the support body, and two ends of the back beam are respectively and fixedly connected to one ends, far away from the front beam, of the two longitudinal beams, so that the back beam is fixedly connected to the opening.

2. The vehicle body bracket with a fixed back beam according to claim 1, wherein said back beam comprises a horizontal extension portion and a vertical extension portion, and both ends of said horizontal extension portion are fixedly connected with said longitudinal beams through said vertical extension portions, respectively.

3. The vehicle body bracket with a fixed rear beam of claim 2, wherein said vertical extension is welded to said side member.

4. The vehicle body bracket with a fixed rear beam according to claim 2, wherein the horizontal extension portion and the vertical extension portion are connected by a bent portion.

5. The vehicle body bracket with a fixed rear beam as claimed in claim 2, wherein said vertical extension is a tubular structure, said vertical extension is connected to said side member by a connecting plate, said connecting plate is connected to one end of said vertical extension near said bracket body, and said connecting plate is pressed to said side member.

6. The body bracket according to claim 5, wherein said web includes first and second end-to-end connectors, said first connector being connected to said vertical extension and pressed against the top of said side member, said second connector extending along and abutting the side wall of said side member.

7. The body bracket with a fixed rear frame as claimed in claim 2, wherein said horizontal extension and vertical extension are detachably connected or integrally formed.

8. The vehicle body mount with fixed back beam of claim 1, wherein a locking mechanism is mounted on a side wall of said side beam for facing said battery pack, said locking mechanism being used for locking and fixing said battery pack.

9. The vehicle body mount with a fixed rear frame as claimed in claim 8, wherein said side member is further provided with an upper position sensor for detecting whether said battery pack is mounted in position relative to said side member along a height direction of said side member and a front position sensor for detecting whether said battery pack is mounted in position relative to said side member along a length direction of said side member.

10. The body mount with fixed back beam of claim 1, wherein said longitudinal beam is formed by detachably connecting three separate structures, and comprises a first separate structure, a second separate structure and a third separate structure which are detachably connected in this order;

the first split structure is fixedly connected to the rear beam, and the third split structure is connected to the front beam;

the vehicle body support further comprises a locking mechanism, the locking mechanism is used for locking and fixing the battery pack, and the locking mechanism is arranged on one side, facing the battery pack, of the second split structure.

11. The vehicle body mount with fixed back beam of claim 10, further comprising a positioning mechanism for positioning said battery pack, said positioning mechanism being provided in said first split structure and/or said third split structure for facing a side of said battery pack.

12. The vehicle body mount with fixed rear frame as claimed in claim 11, wherein said positioning mechanism is a positioning seat having an opening and a cavity extending from said opening, said opening being adapted to allow a lock shaft mounted to said battery pack to enter said cavity.

13. The vehicle body mount with fixed back beam of claim 1, wherein said longitudinal beams have a body mounting plate and a battery pack securing plate, said battery pack securing plate for mounting and securing a battery pack, said body mounting plate for attachment to said chassis.

14. The vehicle body mount with fixed back beam of claim 13, wherein said vehicle body mounting plate comprises a first mounting plate and a first connecting plate, said first mounting plate is adapted to be coupled to and mounted to said chassis, said battery pack securing plate comprises a second mounting plate and a second connecting plate, said second mounting plate is adapted to be coupled to and mounted to a battery pack, one end of said second connecting plate is coupled to a top end of said second mounting plate, said first connecting plate is coupled between another end of said second connecting plate and said first connecting plate mounting plate, and a vertical distance between said first mounting plate and a bottom end of said second mounting plate is less than a vertical height of said second mounting plate.

15. The body bracket according to claim 14, wherein an end portion of said rear member is pressed against a top portion of said second connecting plate, and said end portion of said rear member is fixedly connected to said second connecting plate by a welded connection.

16. The body bracket according to claim 14, wherein the end of the rear beam is pressed against the top of the first mounting plate and the end of the rear beam is fixedly connected to the first mounting plate by a welded connection;

or, the end connection of first mounting panel has intermediate junction plate, the lateral wall of the tip of back beam laminate in intermediate junction plate, just the back beam pass through welded connection with intermediate junction plate fixed connection.

17. The body bracket according to claim 14, wherein the side wall of the end portion of the back beam is fitted to the second mounting plate, and the end portion of the back beam is fixedly connected to the second mounting plate by a welded connection.

18. A vehicle body mount assembly including a battery pack, wherein the vehicle body mount assembly further includes a vehicle body mount with a fixed rear beam as claimed in any one of claims 1 to 17, wherein the battery pack is located within the open structure.

19. An electric vehicle comprising a chassis, wherein the electric vehicle further comprises the body bracket assembly of claim 18, wherein the body bracket assembly is attached to the chassis.

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