Bottom-mounted power battery bracket and assembly thereof

Abstract

The utility model discloses a bottom-mounted power battery bracket and an assembly thereof, and relates to the technical field of automobile parts, the bottom-mounted power battery bracket comprises a bottom plate for bearing a power battery, the bottom surface of the bottom plate is provided with a supporting framework, and the left side and the right side of the top surface of the bottom plate are respectively provided with a side plate for positioning the power battery; the bottom plate is suspended at the bottom of a vehicle body through a connecting piece, and the connecting piece is in bolted connection with a suspension point mechanism installed at the bottom of the vehicle body. The installation mode that the bottom faces upwards is adopted, the pipeline trend is smooth, complex operation in a narrow space is not needed, and the assembly process is simple and efficient. During maintenance, the bracket body and the power battery can be easily taken down only by disassembling the nut, a large number of peripheral components do not need to be disassembled, the maintenance time is greatly shortened, and the use efficiency of a vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a bottom-mounted power battery bracket and assembly thereof. BACKGROUND

[0002] With the rapid development of the electric vehicle industry, mini buses as an important tool for urban short-distance public transportation and logistics distribution, their performance and maintenance convenience are attracting more and more attention. As the core component of the mini bus, the installation bracket of the power battery directly affects the overall performance and maintenance cost of the vehicle. The traditional power battery bracket has many inconveniences in the process of assembly and maintenance. For example, some brackets use side or top mounting methods, which require complex operations in a small space, increasing the assembly difficulty and time cost; and when maintaining, a large number of surrounding components need to be disassembled to repair or replace the power battery, reducing the use efficiency of the vehicle. In addition, the connection between some brackets and the vehicle body is not stable enough, and during vehicle driving, due to vibration and bumping, the power battery is prone to loosen, affecting the normal work of the battery, and even causing safety hazards. SUMMARY

[0003] In view of the defects in the prior art, the utility model aims to provide a bottom-mounted power battery bracket and assembly thereof, which adopts a bottom-up mounting method, the pipeline runs smoothly, and complex operations are not required in a small space, the assembly process is simple and efficient. When maintaining, only the nuts need to be disassembled to easily remove the bracket body and the power battery, without disassembling a large number of surrounding components, greatly shortening the maintenance time and improving the use efficiency of the vehicle.

[0004] To achieve the above purpose, the utility model takes the technical scheme that a bottom-mounted power battery bracket comprises a bottom plate for bearing a power battery, the bottom surface of the bottom plate is provided with a support framework, and the top surface of the bottom plate is provided with side plates for positioning the power battery on the left and right sides; the bottom plate is suspended at the bottom of the vehicle body through a connecting piece, and the connecting piece is bolted with a lifting point mechanism installed at the bottom of the vehicle body.

[0005] Further improvement lies in that the shape of the bottom plate is adapted to the power battery, comprising two flat plates connected in front and back, and the flat plate located at the back side has a greater width than the flat plate located at the front side, and high-elasticity rubber buffer pads are laid on both flat plates; the support framework is spliced by a plurality of cross beams and longitudinal beams.

[0006] Further improvement lies in that the connecting piece comprises a first connecting frame arranged on the front side of the bottom plate, the first connecting frame comprises a first inclined column arranged forwardly, and the bottom of the first inclined column is bent rearward to form a first fixing seat fixedly connected with the support framework, and the top of the first inclined column extends upward to form a first connecting seat, and the first connecting seat is provided with a first connecting hole connected with the lifting point mechanism.

[0007] Further improvement lies in that the connecting piece comprises a second connecting frame arranged on the left and right sides of the bottom plate, the second connecting frame comprises a connecting plate, the inner side of the connecting plate is fixedly connected with the support framework, the front and rear sides of the connecting plate are respectively bent downward to form flanging portions, and the connecting plate is provided with a second connecting hole connected with the lifting point mechanism.

[0008] Further improvement lies in that the connecting piece comprises a third connecting frame arranged on the left and right sides and the rear side of the bottom plate, the third connecting frame comprises a second inclined column arranged outwardly, and the bottom of the second inclined column is bent inwardly and extended to form a second fixing seat sleeved on the end portion of the corresponding cross beam of the support framework, and the top of the second inclined column extends upward to form a second connecting seat, and the second connecting seat is provided with a third connecting hole connected with the lifting point mechanism.

[0009] The utility model also provides a kind of bottom-mounted power battery bracket assembly, including power battery, further including above-mentioned bottom-mounted power battery bracket and lifting point mechanism installed in the bottom of vehicle body, the power battery is installed on bottom-mounted power battery bracket, and bottom-mounted power battery bracket is bolted with lifting point mechanism by connecting piece.

[0010] Further improvement lies in that the side plate of the bottom-mounted power battery bracket is provided with a positioning hole and a weight-reducing hole, and the left and right sides of the power battery are respectively provided with a positioning plate, and the positioning plate is provided with a positioning bolt matched with the positioning hole.

[0011] Further improvement lies in that the lifting point mechanism comprises a first lifting frame arranged on the bottom-mounted power battery bracket, the first lifting frame comprises a front cross bar and a rear cross bar arranged at intervals front and back, and two vertical rods arranged at intervals left and right; the two vertical rods are located above the front cross bar and the rear cross bar, and the two ends of the vertical rod are respectively connected with the corresponding end portions of the front cross bar and the rear cross bar through connecting rods; the rear cross bar is provided with a connecting arm and a first fixing hole connected with the connecting piece.

[0012] Further improvement lies in that the lifting point mechanism comprises a second lifting frame arranged on the left and right sides of the bottom-mounted power battery bracket, the second lifting frame comprises a connecting column, the lower end of the connecting column is provided with a second fixing hole connected with the connecting piece, and the upper end of the connecting column is provided with a support welded with the bottom of the vehicle body.

[0013] Further improvements are that the lifting point mechanism comprises third lifting frames on the left and right sides and the rear side of the bottom-mounted power battery bracket, the third lifting frame comprises a fixing plate, the fixing plate is provided with a third fixing hole connected with the connecting piece, and the front and rear sides of the fixing plate are bent upwards and extend outwards to form bent plates, and at least one of the left and right sides of the fixing plate is bent upwards to form a baffle.

[0014] The utility model discloses beneficial effect lies in:

[0015] 1. In the utility model, adopt the installation mode of bottom up, and the pipeline trend is smooth, need not carry out complex operation in the narrow space, and the assembly process is simple and efficient. When maintaining, only need to dismount the nut, can easily take down the bracket body and power battery, need not dismount a large number of peripheral components, greatly shorten the maintenance time, improve the use efficiency of vehicle.

[0016] 2. In the utility model, through the lifting point bolt connection with the welding of the vehicle body and the fastening of the installation assembly to the power battery, the stability and reliability of the whole bracket assembly in the vehicle driving process are ensured, the power battery is effectively avoided loosening due to vibration and bumping, and the normal work of the battery and the driving safety of the vehicle are ensured.

[0017] 3. In the utility model, the structure design is simple and reasonable, adopts common material and connection mode, reduces the manufacturing cost. Meanwhile, since the assembly and maintenance are convenient, the labor cost and vehicle downtime are reduced, and the economic benefit is improved. DRAWINGS

[0018] Figure 1 It is the perspective view of the bottom-mounted power battery bracket in the utility model embodiment;

[0019] Figure 2 It is the side view of the bottom-mounted power battery bracket in the utility model embodiment;

[0020] Figure 3 It is the perspective view of the support framework in the utility model embodiment;

[0021] Figure 4 It is the top view of the support framework in the utility model embodiment;

[0022] Figure 5 It is the perspective view of the side plate in the utility model embodiment;

[0023] Figure 6 It is the perspective view of the first connecting frame in the utility model embodiment;

[0024] Figure 7 It is the perspective view of the second connecting frame in the utility model embodiment;

[0025] Figure 8It is the perspective view of the third connecting frame in the embodiment of the utility model;

[0026] Figure 9 It is the structural schematic view of the bottom-mounted power battery bracket assembly in the embodiment of the utility model;

[0027] Figure 10 It is Figure 9 The bottom view of the utility model embodiment;

[0028] Figure 11 It is the explosion view of the bottom-mounted power battery bracket assembly in the embodiment of the utility model;

[0029] Figure 12 It is the structural schematic view of the power battery in the embodiment of the utility model;

[0030] Figure 13 It is the structural schematic view of the first hanging bracket in the embodiment of the utility model;

[0031] Figure 14 It is the structural schematic view of the second hanging bracket in the embodiment of the utility model;

[0032] Figure 15 It is the top view of the second hanging bracket in the embodiment of the utility model;

[0033] Figure 16 It is the structural schematic view of the third hanging bracket in the embodiment of the utility model;

[0034] Figure 17 It is the installation schematic view of the bottom-mounted power battery bracket assembly in the embodiment of the utility model Figure 1 ;

[0035] Figure 18 It is Figure 17 The top view of the utility model embodiment;

[0036] Figure 19 It is the installation schematic view of the bottom-mounted power battery bracket assembly in the embodiment of the utility model Figure 2 .

[0037] Reference signs:

[0038] 1-bottom-mounted power battery bracket;11-support framework;111-longitudinal beam;112-cross beam;12-bottom plate;13-side plate;131-positioning hole;132-weight reduction hole;14-first connecting frame;141-first inclined column;142-first fixing seat;143-first connecting seat;144-first connecting hole;15-second connecting frame;151-connecting plate;152-second connecting hole;153-flange part;16-third connecting frame;161-second inclined column;162-second fixing seat;163-second connecting seat;164-third connecting hole;

[0039] 2 - power battery; 21 - positioning plate; 22 - positioning bolt;

[0040] 3 - first hanger; 31 - front cross bar; 32 - rear cross bar; 33 - vertical bar; 34 - connecting rod; 35 - first fixing hole; 36 - connecting arm;

[0041] 4 - second hanger; 41 - connecting column; 42 - second fixing hole; 43 - support;

[0042] 5 - third hanger; 51 - fixing plate; 52 - third fixing hole; 53 - bent plate; 54 - baffle. DETAILED DESCRIPTION

[0043] The embodiments of the present application are described in detail below, and the embodiment examples are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout.

[0044] In the description of the present application, it should be noted that for the terms of orientation, such as the terms "center", "transverse (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0045] In addition, the terms "first" and "second" are only used for description purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the "first" and "second" features can explicitly or implicitly include one or more features, and in the description of the present application, the meaning of "several" and "several" is two or more, unless otherwise explicitly specified.

[0046] The technical scheme of the present application and its beneficial effects will be clearer and more explicit through the further description of the specific embodiments of the present application in combination with the drawings of the specification. The description of the embodiments by referring to the drawings is exemplary and is intended to explain the present application, and cannot be understood as limiting the present application.

[0047] Referring to Figure 1 and Figure 2As shown in the utility model embodiment provides a kind of bottom-mounted power battery bracket, including the bottom plate 12 for carrying power battery 2, the bottom surface of bottom plate 12 is provided with support framework 11, and the top surface of bottom plate 12 is provided with side plate 13 for positioning power battery 2 respectively on left and right sides;Bottom plate 12 is suspended in the bottom of vehicle body by connecting piece, and connecting piece is bolted with hanger point mechanism installed in the bottom of vehicle body.The bracket body is in the shape of "U" structure with bottom upwards, which is composed of two parallel side plates and a bottom plate connected with the side plates.The side plates and the bottom plate are made of high-strength lightweight alloy material, which is processed by special process, has good strength and vibration resistance, can provide reliable support for power battery, and also can reduce the overall weight of bus.The hanger point mechanism is welded with the vehicle body in advance,

[0048] Referring to Figure 1 、 Figure 3 and Figure 4 As shown in the utility model embodiment, the shape of bottom plate 12 is adapted to power battery 2, including two flat plates connected in front and back, and the flat plate located at the rear side has a width greater than the flat plate located at the front side, and high-elasticity rubber buffer pads are laid on both flat plates;It can effectively absorb the vibration and impact force during the driving of the bus and protect the power battery. At the same time, protective baffles are installed at the edges and key positions of the bracket body to prevent external objects from colliding and damaging the power battery and pipelines. The support framework 11 is spliced by a plurality of cross beams 112 and longitudinal beams 111. In this embodiment, the power battery 2 is in the shape of a convex character, and the front end of the power battery 2 has notched portions for avoiding the front suspension of the bus.

[0049] Referring to Figure 1 and Figure 6 As shown in the utility model embodiment, the connecting piece includes a first connecting frame 14 located at the front side of the bottom plate 12, the first connecting frame 14 includes a first inclined column 141 inclined forwardly, and the bottom of the first inclined column 141 is bent rearwardly to form a first fixing seat 142 fixedly connected with the support framework 11, and the top of the first inclined column 141 extends upwardly to form a first connecting seat 143, and the first connecting seat 143 is provided with a first connecting hole 144 connected with the hanger point mechanism.

[0050] Referring to Figure 1 and Figure 7 As shown in the utility model embodiment, the connecting piece includes a second connecting frame 15 located at the left and right sides of the bottom plate 12, the second connecting frame 15 includes a connecting plate 151, the inner side of the connecting plate 151 is fixedly connected with the support framework 11, the front and rear sides of the connecting plate 151 are bent downwardly to form flange portions 153, and the connecting plate 151 is provided with a second connecting hole 152 connected with the hanger point mechanism.

[0051] Referring to Figure 1 and Figure 8As shown, the connecting piece includes third connecting frames 16 on the left and right sides and the rear side of the bottom plate 12, the third connecting frame 16 includes a second inclined column 161 which is inclinedly arranged to the outside, and the bottom of the second inclined column 161 is bent inwardly and extended to form a second fixing seat 162 which is sleeved on the corresponding end of the beam 112 of the support framework 11, and the top of the second inclined column 161 is extended upwardly to form a second connecting seat 163, and the second connecting seat 163 is provided with a third connecting hole 164 which is connected with the lifting point mechanism.

[0052] Referring to Figures 9-11 As shown, the utility model embodiment further provides a bottom-mounted power battery bracket assembly, including power battery 2, further including bottom-mounted power battery bracket 1 as mentioned above and lifting point mechanism installed at the bottom of the vehicle body, power battery 2 is installed on bottom-mounted power battery bracket 1, and bottom-mounted power battery bracket 1 is bolted with lifting point mechanism through connecting piece.

[0053] Referring to Figure 5 And Figure 12 As shown, the side plate 13 of bottom-mounted power battery bracket 1 is provided with positioning hole 131 and weight-reducing hole 132, and the left and right sides of power battery 2 are respectively provided with positioning plate 21, and positioning plate 21 is provided with positioning bolt 22 which is matched with positioning hole 131. Between the two side plates, a special pipeline passage is arranged. The width and height of the passage are carefully designed to provide sufficient passing space for the pipeline. A plurality of fixing buckles are further arranged in the passage to fix the pipeline at the specified position, avoid the pipeline from shaking and rubbing during the driving of the bus, and ensure the safe and stable operation of the electrical system.

[0054] Referring to Figure 9 And Figure 13 As shown, the lifting point mechanism includes first lifting frame 3 which is located at bottom-mounted power battery bracket 1, the first lifting frame 3 includes front cross rod 31 and rear cross rod 32 which are arranged at intervals in front and back, and two longitudinal rods 33 which are arranged at intervals in left and right; the two longitudinal rods 33 are located above the front cross rod 31 and the rear cross rod 32, and the two ends of the longitudinal rod 33 are respectively connected with the corresponding end of the front cross rod 31 and the rear cross rod 32 through connecting rod 34; the rear cross rod 32 is provided with connecting arm 36 and first fixing hole 35 which is connected with the connecting piece.

[0055] Referring to Figure 9 、 Figure 14 And Figure 15 As shown, the lifting point mechanism includes second lifting frame 4 which is located at the left and right sides of bottom-mounted power battery bracket 1, the second lifting frame 4 includes connecting column 41, the lower end of the connecting column 41 is provided with second fixing hole 42 which is connected with the connecting piece, and the upper end of the connecting column 41 is provided with support 43 which is welded with the bottom of the vehicle body.

[0056] Referring to Figure 9 And Figure 16As shown, the lifting point mechanism includes third lifting frames 5 located on the left and right sides and the rear side of the bottom-mounted power battery bracket 1, and the third lifting frames 5 include fixed plates 51 provided with third fixed holes 52 connected with connecting pieces, and the front and rear side edges of the fixed plates 51 are bent upwards and extend outward to form bent plates 53, and at least one of the left and right side edges of the fixed plates 51 is bent upwards to form a baffle 54.

[0057] As shown in Figure 17 , Figure 18 and Figure 19 As shown, during installation, the bracket body is lifted upwards from the bottom, and the corresponding mounting holes on the bracket body are aligned with the lifting point bolts, and the bracket body is firmly connected with the vehicle body by tightening the nuts.

[0058] Greatly improved assembly and maintenance convenience: the upward installation method and connection with the lifting point bolts simplify the assembly and maintenance process, and maintenance personnel can complete the related work without complex operations, greatly shortening the assembly and maintenance time and improving the use efficiency of the vehicle.

[0059] Optimized pipeline arrangement: the large side pipeline channel and the fixed buckle design make pipeline installation and maintenance more convenient, reduce the probability of pipeline failure, and ensure stable operation of the vehicle electrical system.

[0060] Enhanced stability and safety: the high-strength bracket body, firm connection components, and buffer protection structure ensure the stability and safety of the power battery during bus driving, prolong the service life of the battery, and reduce the risk of vehicle operation.

[0061] In the description of the specification, the description of the terms "one embodiment", "preferably", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application, and the illustrative description of the above terms in the specification does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] Through the above description of the structure and principle, those skilled in the art should understand that the present application is not limited to the above specific embodiments, and improvements and replacements of known technologies in the art based on the present application all fall within the protection scope of the present application, which should be limited by the claims.

Claims

1. A bottom-mounted power battery bracket, comprising a base plate (12) for supporting a power battery (2), characterized in that: The bottom surface of the base plate (12) is provided with a support frame (11), and the top surface of the base plate (12) is provided with side plates (13) for positioning the power battery (2) on the left and right sides respectively; the base plate (12) is suspended at the bottom of the vehicle body by a connector, and the connector is bolted to the suspension point mechanism installed at the bottom of the vehicle body.

2. The bottom-mounted power battery bracket according to claim 1, characterized in that: The shape of the base plate (12) is adapted to the power battery (2), including two plates connected front and rear, and the width of the plate on the rear side is greater than that of the plate on the front side, and both plates are covered with high elastic rubber buffer pads; the support frame (11) is spliced ​​together by several cross beams (112) and longitudinal beams (111).

3. The bottom-mounted power battery bracket according to claim 1, characterized in that: The connector includes a first connecting frame (14) located on the front side of the base plate (12). The first connecting frame (14) includes a first inclined column (141) that is inclined forward, and the bottom of the first inclined column (141) is bent backward to form a first fixed seat (142) that is fixedly connected to the support frame (11). The top of the first inclined column (141) extends upward to form a first connecting seat (143). The first connecting seat (143) is provided with a first connecting hole (144) that is connected to the lifting mechanism.

4. The bottom-mounted power battery bracket according to claim 1, characterized in that: The connector includes a second connecting frame (15) located on the left and right sides of the base plate (12). The second connecting frame (15) includes a connecting plate (151). The inner side of the connecting plate (151) is fixedly connected to the support frame (11). The front and rear sides of the connecting plate (151) are bent downward to form flanges (153). The connecting plate (151) is provided with a second connecting hole (152) for connection with the lifting mechanism.

5. The bottom-mounted power battery bracket according to claim 1, characterized in that: The connector includes a third connecting frame (16) located on the left and right sides and the rear side of the base plate (12). The third connecting frame (16) includes a second inclined column (161) that is inclined outward. The bottom of the second inclined column (161) is bent inward and extends to form a second fixing seat (162) that is sleeved on the end of the corresponding crossbeam (112) of the support frame (11). The top of the second inclined column (161) extends upward to form a second connecting seat (163). The second connecting seat (163) is provided with a third connecting hole (164) that is connected to the lifting mechanism.

6. A bottom-mounted power battery bracket assembly, comprising a power battery (2), characterized in that: It also includes a bottom-mounted power battery bracket (1) as described in any one of claims 1 to 5 and a lifting point mechanism installed at the bottom of the vehicle body, wherein the power battery (2) is mounted on the bottom-mounted power battery bracket (1), and the bottom-mounted power battery bracket (1) is bolted to the lifting point mechanism via a connector.

7. The bottom-mounted power battery bracket assembly according to claim 6, characterized in that: The side plate (13) of the bottom-mounted power battery bracket (1) is provided with positioning holes (131) and weight reduction holes (132). Positioning plates (21) are provided on the left and right sides of the power battery (2). Positioning bolts (22) that are compatible with the positioning holes (131) are provided on the positioning plates (21).

8. The bottom-mounted power battery bracket assembly according to claim 6, characterized in that: The lifting mechanism includes a first hanger (3) located on the bottom-mounted power battery bracket (1). The first hanger (3) includes a front crossbar (31) and a rear crossbar (32) spaced apart front to back, and two longitudinal bars (33) spaced apart left to right. The two longitudinal bars (33) are located above the front crossbar (31) and the rear crossbar (32), and the two ends of the longitudinal bars (33) are respectively connected to the corresponding ends of the front crossbar (31) and the rear crossbar (32) through connecting rods (34). The rear crossbar (32) is provided with a connecting arm (36) and a first fixing hole (35) connected to the connecting piece.

9. The bottom-mounted power battery bracket assembly according to claim 6, characterized in that: The lifting mechanism includes a second hanger (4) located on the left and right sides of the bottom-mounted power battery bracket (1). The second hanger (4) includes a connecting column (41). The lower end of the connecting column (41) is provided with a second fixing hole (42) for connecting with the connector. The upper end of the connecting column (41) is provided with a support (43) welded to the bottom of the vehicle body.

10. The bottom-mounted power battery bracket assembly according to claim 6, characterized in that: The lifting mechanism includes a third hanger (5) located on the left and right sides and the rear side of the bottom-mounted power battery bracket (1). The third hanger (5) includes a fixing plate (51). The fixing plate (51) is provided with a third fixing hole (52) for connecting to the connector. The front and rear sides of the fixing plate (51) are bent upward and extended outward to form a bent plate (53). At least one of the left and right sides of the fixing plate (51) is bent upward to form a baffle (54).

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