CN218242078U - Battery box frame construction - Google Patents

Abstract

The application relates to a battery box frame construction, it includes: the frame comprises a plurality of frames and a reinforcing part, wherein the frames are connected to form a frame body, a cavity is arranged on each frame, and a steering angle is formed at the joint of the two frames; the reinforcement sets up between the die cavity of two adjacent frames is inside, has seted up on the reinforcement and has dodged the groove, dodges the groove and runs through reinforcement top and bottom, dodges the position of groove and turns to the position of angle corresponding, dodges and is formed with one between groove and the corresponding angle of turning to and dodges the space. The utility model discloses in, the reinforcement sets up inside the frame die cavity, plays the effect of pre-fixing, increase joint design intensity, reduction welding stress deformation, and the position of dodging the groove is corresponding with the position of steering angle, dodges wall thickness tolerance and the assembly tolerance that the space can absorb the frame, can also avoid the welding position direct contact on reinforcement and the frame, avoids the reinforcement to receive the welding heat influence, and the reinforcement is because of the phenomenon of the joint design intensity reduction that welding process caused.

Description

Battery box frame construction

Technical Field

The application relates to the field of batteries, in particular to a battery box body frame structure.

Background

In order to realize the lightweight, the frame construction is constituteed by a plurality of aluminum alloy section bars to current battery box, cover again and form the confined space that can hold battery module with bottom plate and upper cover, adopt welded mode to connect usually between the aluminum alloy section bar, welding process can cause the performance loss to joint department, thereby become the performance weak point of battery package frame structure, in case the frame junction is out of order, can cause irrecoverable influence to the structural strength and the sealing performance of battery package, thereby influence the normal use of battery package.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a battery box frame construction to solve the poor problem of battery box frame welding point intensity among the correlation technique.

In order to achieve the above object, the utility model provides a following technical scheme: a battery case frame structure, comprising: the frame comprises a plurality of frames and a reinforcing part, wherein the frames are connected to form a frame body, a cavity is arranged on each frame, and a steering angle is formed at the joint of the two frames; the reinforcement is arranged between the inner parts of the cavities of the two adjacent frames, the avoidance groove is formed in the reinforcement and penetrates through the top end and the bottom end of the reinforcement, the avoidance groove is corresponding to the steering angle, and an avoidance space is formed between the avoidance groove and the corresponding steering angle.

In some embodiments, the stiffener includes: the first plate body is fixed on one of the two adjacent frames; the second plate body is fixed on the other frame of the two adjacent frames, is connected with the first plate body and forms an avoidance groove at the connection part; the two ends of the third plate body are respectively connected with the first plate body and the second plate body, and an avoiding groove is formed in the third plate body.

In some embodiments, the first panel, the second panel, and the third panel are connected to form a triangular reinforcement.

In some embodiments, the stiffener includes: the first plate body is fixed on one of the two adjacent frames; the second plate body is fixed on the other frame of the two adjacent frames, is connected with the first plate body and forms an avoidance groove at the connection part; the third plate body comprises two sub-plates, the two sub-plates are parallel to the first plate body and the second plate body respectively, the two sub-plates are fixed on the two adjacent frames respectively, and the connection positions of the two sub-plates form avoiding grooves.

In some embodiments, the stiffener further comprises two side plates; one side plate is connected between the first plate body and the daughter boards parallel to the first plate body; and another side plate is connected between the second plate body and the daughter board parallel to the second plate body.

In some embodiments, the reinforcement is a hollow structure, and further includes a support portion, the support portion is located inside the reinforcement, and two ends of the support portion are respectively connected to the two avoidance grooves.

In some embodiments, the avoidance groove is formed by recessing one surface of the reinforcing member toward the other surface.

In some embodiments, the cross section of the avoidance groove is arc-shaped, V-shaped or U-shaped.

In some embodiments, the stiffener is connected to the bezel by fasteners.

In some embodiments, the fixing member is a bolt and/or a rivet, a second through hole communicated with the cavity is formed in the frame, a first through hole is formed in the reinforcement member, and the second through hole is in threaded connection with the first through hole through a screw; and/or a gluing gap is reserved between the reinforcing piece and the inner wall of the cavity.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides a battery box frame construction, the reinforcement sets up inside the frame die cavity before the frame construction welding, can play pre-fixing, increase joint structural strength, reduce welding stress deformation's effect, and do not occupy battery box inner space, it is corresponding with the position of turning to the angle to dodge the position of groove, and certain dodge the space has been left, dodge the wall thickness tolerance and the assembly tolerance that the space on the one hand can absorb the frame, on the other hand can avoid the reinforcement and the welding position direct contact on the frame, avoid the reinforcement to receive the welding heat influence, the reinforcement is because of the phenomenon of the joint structural strength weakening that welding process caused.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic overall structure diagram provided in an embodiment of the present application;

FIG. 2 is an exploded view of the overall structure provided by the embodiments of the present application;

FIG. 3 is a schematic view of a first reinforcement member provided in accordance with an embodiment of the present disclosure;

FIG. 4 is a schematic top sectional view of a first stiffener and a cavity according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of a second reinforcement member provided in accordance with an embodiment of the present application;

fig. 6 is a schematic top sectional view of a second reinforcing member and a cavity according to an embodiment of the present disclosure.

In the figure: 1. a reinforcement; 10. a first plate body; 11. a second plate body; 12. a support portion; 13. a third plate body; 130. a daughter board; 131. a side plate; 14. an avoidance groove; 15. a first via hole; 2. a frame; 20. a first frame; 21. a second frame; 3. a second via hole; 4. a fixing member; 5. a cavity; 6. a steering angle; 7. a transverse plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides a battery box frame construction, it can solve the poor problem of battery box frame welding point intensity among the correlation technique.

Referring to fig. 1 to 6, the present application provides a battery case frame structure, which includes: the frame comprises a plurality of frames 2 and a reinforcing part 1, wherein the frames 2 are connected to form a frame body, a cavity 5 is arranged on each frame 2, and a steering angle 6 is formed at the joint of the two frames 2; the reinforcing part 1 is arranged between the inner parts of the cavities of the two adjacent frames 2, the reinforcing part 1 is provided with an avoiding groove 14, the avoiding groove 14 penetrates through the top end and the bottom end of the reinforcing part 1, the position of the avoiding groove 14 corresponds to the position of the steering angle 6, and an avoiding space is formed between the avoiding groove 14 and the corresponding steering angle 6.

In the embodiment of the application, reinforcement 1 sets up inside 2 die cavities 5 of frame before the frame construction welding, can play fixed in advance, increase joint design intensity, reduce welding stress deformation's effect, and do not occupy battery box inner space, it is corresponding with the position of turning to angle 6 to dodge the position of groove 14, and certain dodge the space has been left, dodge the wall thickness tolerance and the assembly tolerance that the space can absorb frame 2 on the one hand, on the other hand can avoid reinforcement 1 and the welding position direct contact on the frame 2, avoid reinforcement 1 to receive the welding heat influence, the reinforcement is because of the phenomenon of the joint design intensity weakening that welding process caused.

The strength of the welding joint is improved by structural reinforcement, namely the strength loss of the welding to the frame 2 is offset by adding the reinforcing part 1 on the frame 2;

by providing the avoiding groove 14, the reinforcing member 1 can be avoided from the weld area on the frame 2, and the influence of the welding heat on the reinforcing member 1 is avoided.

The avoiding groove 14 is formed by recessing one surface of the reinforcing member 1 toward the other surface, the cross section of the avoiding groove 14 is arc-shaped, or the cross section of the avoiding groove 14 is V-shaped, U-shaped, etc., and the cross section of the avoiding groove 14 in the embodiment of the present application is only taken as an example, and is not limited thereto.

In order to protect the battery from being damaged when the battery is extruded by external collision, the frame 2 is made of alloy materials, and the alloy materials include but are not limited to aluminum alloy; the stiffener 1 may be made of metal material (including but not limited to steel, aluminum alloy, etc.) and metal forming and processing (including but not limited to casting, extrusion, machining, welding, etc.); the composite material can also be made of continuous fibers or discontinuous fibers (including but not limited to carbon fibers, glass fibers, aramid fibers, basalt fibers or mixed fibers of the carbon fibers, the glass fibers, the aramid fibers and the basalt fibers), and the composite material is formed through composite material processes (including but not limited to molding, pultrusion and the like), when the reinforcing member 1 is made of a composite material, the reinforcing member can be screwed and/or riveted with the frame 2 through the fixing member 4, in order to improve the connection strength and the sealing performance, an adhesive can be coated on the joint surface of the reinforcing member 1 and the cavity 5 in the frame 2, and a connection form of screwing and/or riveting and mutual combination with adhesive joint can be formed.

In an embodiment of the present application, as shown in fig. 1 and fig. 2, the plurality of frames 2 are divided into two groups, that is, the first frame 20 and the second frame 21, the lengths of the first frame 20 and the second frame 21 are different, for example, the length of the first frame 20 is greater than the length of the second frame 21, the number of the first frame 20 and the number of the second frame 21 are the same, when the first frame and the second frame are spliced, the second frame 21 is connected between the two first frames 20, the connection manner of the first frame 20 and the second frame 21 may be welding, a turning angle 6 is formed at the joint of the first frame 20 and the second frame 21 after welding, the turning angle 6 is a V-shaped structure, the reinforcement 1 is prefabricated into a shape matching with the turning angle 6 of the V-shaped structure, in some embodiments, the turning angle 6 may be a V-shaped structure with a right angle, the reinforcement 1 is prefabricated into a shape matching with the turning angle 6 of the right-angled structure, the reinforcement 1 is embedded inside the frame 2, which can reduce the occupied space inside of the battery box frame or the battery box frame, the arrangement space outside the frame, the reinforcement 2 can protect the reinforcement 1, and also can protect the reinforcement 1 effectively prevent the joint 1 from being damaged. The specific included angle degree of the V-shaped structure is not limited to a right angle, and in other embodiments, the specific included angle degree can also be an acute angle or an obtuse angle and can be specifically adjusted according to actual requirements.

In another possible embodiment, the lengths of the first frame 20 and the second frame 21 are the same, the number of the first frame 20 and the second frame 21 is different, the shape and structure of the frame body can be adjusted according to actual conditions, a turning angle 6 is formed at the joint of the first frame 20 and the second frame 21 after welding, and the turning angle 6 can be a V-shaped structure.

The above embodiments are merely various possible implementations of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

When the battery box body frame structure is assembled, firstly, the reinforcing part 1 is connected with one frame 2, in one possible embodiment, the reinforcing part 1 is connected with the frame 2 through the fixing part 4, the fixing part 4 is a bolt and/or a rivet, the frame 2 is provided with a second through hole 3 communicated with the cavity 5, the reinforcing part 1 is provided with a first through hole 15, the fixing part 4 penetrates through the second through hole 3 and the first through hole 15, so that the reinforcing part 1 is connected with the frame 2, one end of the reinforcing part 1 is arranged in the cavity 5 of the frame 2, so that the positions of the first through hole 15 and the second through hole 3 are aligned, then the reinforcing part 1 is connected with the frame 2 through the fixing part 4, then the other end of the reinforcing part 1 is connected with the other frame 2 according to the mode, at the moment, the two frames 2 are connected, due to the arrangement of the avoidance groove 14, the position of the avoidance groove 14 on the reinforcing part 1 corresponds to the position of the turning angle 6, an avoidance groove 14 is formed between the avoidance groove and the corresponding turning angle 6, the avoidance groove 14 can absorb the wall thickness and the assembly tolerance of the frame 2, so that the welding tolerance of the reinforcement 1 can be more convenient, and the welding strength of the reinforcement 1 can be more, and the welding structure can be more, and the welding strength of the welding joint can be prevented from being affected by the welding joint 1, and the welding strength of the welding structure, and the welding joint 2.

In another possible embodiment, a glue joint gap is reserved between the reinforcement 1 and the inner wall of the cavity 5, glue injection ports are formed in the reinforcement 1 and the frame 2, and after the reinforcement 1 is placed in the cavity 5, glue is injected into the glue injection ports to connect the reinforcement 1 and the frame 2.

In another possible embodiment, in order to connect the reinforcement 1 to the frame 2 more stably, the reinforcement 1 is connected to the frame 2 by the fixing member 4, and the glue injection port is provided on both the reinforcement 1 and the frame 2, so that the reinforcement 1 is connected to the frame 2 by the fixing member 4 and the glue injection port is used to connect the reinforcement 1 to the frame 2.

The above embodiments are merely various possible implementations of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

On the basis of the above embodiment, in the present embodiment, the reinforcing member 1 includes: the structure comprises a first plate body 10, a second plate body 11 and a third plate body 13, wherein the first plate body 10 is fixed on one frame 2 of two adjacent frames 2; the second plate body 11 is fixed on the other frame 2 of the two adjacent frames 2, the second plate body 11 is connected with the first plate body 10, and an avoidance groove 14 is formed at the connection part; the third plate 13 is connected to the first plate 10 and the second plate 11 at two ends thereof, and has an avoiding groove 14 formed thereon.

As shown in fig. 3 and 4, in a possible embodiment, the first plate 10, the second plate 11 and the third plate 13 are connected to form a triangular structure, the reinforcing member 1 is triangular, so that the structure of the reinforcing member 1 is stable, and the width of the two ends of the reinforcing member 1 in the triangular structure is smaller than the width of the middle part of the reinforcing member 1, thereby facilitating the plugging operation.

In this embodiment, the first plate body 10, the second plate body 11 and the third plate body 13 are all provided with first through holes 15, the first plate body 10 and the second plate body 11 in the reinforcement member 1 are connected with the inner wall of the cavity 5, and a gap is formed between the third plate body 13 and the inner wall of the cavity 5; or the third plate body 13 is connected with the inner wall of the cavity 5, and at this time, gaps are reserved between the first plate body 10, the second plate body 11 and the inner wall of the cavity 5.

In another possible embodiment, the reinforcement 1 comprises: the first board body 10 is fixed on one frame 2 of two adjacent frames 2; the second plate body 11 is fixed on the other frame 2 of the two adjacent frames 2, the second plate body 11 is connected with the first plate body 10, and an avoidance groove 14 is formed at the connection part; the third board body 13 includes two sub-boards 130, the two sub-boards 130 are parallel to the first board body 10 and the second board body 11, the two sub-boards 130 are fixed on the two adjacent frames 2, and the connection portion of the two sub-boards 130 forms an avoiding groove 14.

In this embodiment, the first plate body 10, the second plate body 11 and the third plate body 13 are all provided with first through holes 15, the distance between the first plate body 10 and the third plate body 13, the distance between the second plate body 11 and the third plate body 13 and the distance between the inner walls of the cavity 5 are the same, and the first plate body 10, the second plate body 11 and the third plate body 13 are all connected with the inner walls of the cavity 5; or the distance between the first plate body 10 and the third plate body 13 and the distance between the second plate body 11 and the third plate body 13 are smaller than the distance between the inner walls of the cavity 5, at the moment, the first plate body 10 and the second plate body 11 are connected with the inner walls of the cavity 5, a gap is reserved between the third plate body 13 and the inner walls of the cavity 5, or the third plate body 13 is connected with the inner walls of the cavity 5, and a gap is reserved between the first plate body 10 and the second plate body 11 and the inner walls of the cavity 5.

The above embodiments are merely various possible implementations of the embodiments of the present application, and the embodiments of the present application are not limited thereto.

When the third board body 13 includes two sub-boards 130, and the two sub-boards 130 are respectively parallel to the first board body 10 and the second board body 11, in order to improve the overall strength of the reinforcement 1, the reinforcement 1 further includes two side boards 131; one side plate 131 is connected between the first plate body 10 and the sub-plate 130 parallel to the first plate body; another side plate 131 is connected between the second board body 11 and the sub-boards 130 parallel to the second board body, and the third board body 13 is connected with the first board body 10 and the second board body 11 through the side plate 131, so that the stability of the reinforcement 1 is improved.

Or, two daughter boards 130 are not parallel to the first board body 10 and the second board body 11, so that the first board body 10, the side board 131 and the daughter boards 130, and the second board body 11, the side board 131 and the daughter boards 130 are all connected to form a wedge-shaped structure, and the width of the two ends of the reinforcing member 1 of the wedge-shaped structure is smaller than the width of the middle part of the reinforcing member 1, so that the reinforcing member 1 is easily inserted into the cavity 5, and the assembly operation of the frame structure is facilitated.

On the basis of the above embodiments, in this embodiment, the reinforcing member 1 is a hollow structure, and further includes a supporting portion 12, the supporting portion 12 is located inside the reinforcing member 1, and two ends of the supporting portion are respectively connected to the two avoiding grooves 14.

The supporting part 12 supports the position of the reinforcement 1, which is away from the groove 14, so that the material is further reduced to meet the requirement of light weight, and the strength and stability of the structure of the reinforcement 1 can be ensured.

Inside a plurality of diaphragms 7 that can set up of die cavity 5, distance between different diaphragms 7 can be the same also can be different, diaphragm 7 is divided into a plurality of reinforcement holding districts with die cavity 5 inside, reinforcement 1 prefabricate into with reinforcement holding district assorted size, when reinforcement 1 is placed in the reinforcement holding district, contact with diaphragm 7, reinforcement 1 can be connected with diaphragm 7 through the mode that splices, make reinforcement 1, frame 2 and diaphragm 7 can constitute a whole, make the device structure more stable.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

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

Claims (10)

1. The utility model provides a battery box frame construction which characterized in that, it includes:

the frame comprises a plurality of frames (2), wherein the frames (2) are connected to form a frame body, a cavity (5) is arranged on each frame (2), and a steering angle (6) is formed at the joint of the two frames (2);

reinforcement (1), reinforcement (1) sets up between the die cavity (5) inside of two adjacent frames (2), seted up on reinforcement (1) and dodged groove (14), dodge groove (14) and run through reinforcement (1) top and bottom, the position of dodging groove (14) is corresponding with the position that turns to angle (6), it dodges the space to be formed with one between groove (14) and the corresponding angle (6) that turns to.

2. The battery case frame structure of claim 1, wherein: the reinforcement (1) comprises:

the first plate body (10) is fixed on one frame (2) of two adjacent frames (2);

the second plate body (11) is fixed on the other frame (2) of the two adjacent frames (2), the second plate body (11) is connected with the first plate body (10), and an avoiding groove (14) is formed at the connection position;

and the two ends of the third plate body (13) are respectively connected with the first plate body (10) and the second plate body (11), and an avoidance groove (14) is formed on the third plate body.

3. The battery case frame structure of claim 2, wherein:

the first plate body (10), the second plate body (11) and the third plate body (13) are connected to form a triangular reinforcing piece (1).

4. The battery case frame structure of claim 1, wherein:

the reinforcement (1) comprises:

the first plate body (10) is fixed on one frame (2) of the two adjacent frames (2);

the second plate body (11) is fixed on the other frame (2) of the two adjacent frames (2), the second plate body (11) is connected with the first plate body (10), and an avoiding groove (14) is formed at the connection position;

third plate body (13), third plate body (13) include two daughter boards (130), and two daughter boards (130) are parallel with first plate body (10) and second plate body (11) respectively, and two daughter boards (130) are fixed respectively on two adjacent frames (2), and two daughter board (130) junctions form and dodge groove (14).

5. The battery case frame structure of claim 4, wherein:

the reinforcement (1) further comprises two side plates (131);

one side plate (131) is connected between the first plate body (10) and the sub-plate (130) parallel to the first plate body;

the other side plate (131) is connected between the second plate body (11) and the sub-plate (130) parallel to the second plate body.

6. The battery case frame structure according to claim 2 or 4, wherein:

the reinforcing piece (1) is of a hollow structure and further comprises a supporting portion (12), the supporting portion (12) is located inside the reinforcing piece (1), and two avoidance grooves (14) are connected to two ends of the supporting portion respectively.

7. The battery case frame structure of claim 1, wherein:

the avoidance groove (14) is formed by one surface of the reinforcing part (1) being recessed towards the other surface.

8. The battery case frame structure of claim 7, wherein: the cross section of the avoiding groove (14) is arc-shaped, V-shaped or U-shaped.

9. The battery case frame structure of claim 1, wherein: the reinforcing piece (1) is connected with the frame (2) through a fixing piece (4).

10. The battery case frame structure of claim 9, wherein: the fixing piece (4) is a bolt and/or a rivet, a second through hole (3) communicated with the cavity (5) is formed in the frame (2), a first through hole (15) is formed in the reinforcing piece (1), and the second through hole (3) is in threaded connection with the first through hole (15) through a screw; and/or a gluing gap is reserved between the reinforcing piece (1) and the inner wall of the cavity (5).

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