Battery pack mounting structure and electric automobile

Abstract

The utility model relates to the technical field of battery packs, and particularly discloses a battery pack installation structure and an electric automobile, the battery pack installation structure comprises a support and a second installation plate, the second installation plate is fixed on a battery pack shell through welding, the stability is good, and the support is clamped with the second installation plate. The support comprises a connecting plate and two first mounting plates symmetrically arranged at the two ends of the connecting plate, the two ends of the connecting plate are detachably connected with the two first mounting plates respectively, in other words, the whole support is designed in a split mode, the connecting plate and the two first mounting plates can be independently formed, and each needed forming material is small. If the connecting plate and the two first mounting plates need to be integrally formed, a large plate is needed, then the plate is processed, redundant materials are cut off, and large material waste can be caused, and due to the adoption of the split type design in the embodiment, the connecting plate and the two first mounting plates are independently formed, the redundant materials are few, and therefore material waste can be reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of battery pack positioning, and specifically to a battery pack installation structure and an electric vehicle. Background Technology

[0002] With the rapid development of new energy technologies, portable energy storage devices such as battery packs have been widely used in electric vehicles and other fields. When battery packs are used in electric vehicles, they need to be detachably fixed to the vehicle body to facilitate charging and maintenance.

[0003] In existing technologies, mounting brackets are typically installed on the vehicle body, and corresponding mounting structures are installed on the battery pack. These mounting structures and brackets are generally connected detachably using bolts. However, this method has the following drawbacks: 1. Due to inevitable vibrations during vehicle operation, metal bolts are prone to loosening, and the disassembly and assembly process is cumbersome; 2. Existing mounting brackets are all integrally molded, requiring the removal of a large amount of excess material during processing, resulting in significant material waste; 3. The mounting structure is generally fixed to the battery pack with bolts, which are prone to detachment under vibration, exhibiting poor stability. Summary of the Invention

[0004] This utility model addresses the aforementioned problems and aims to provide a battery pack installation structure and an electric vehicle. The connecting plate and the first mounting plate in the bracket are formed separately, which can reduce material waste and make battery pack installation convenient, quick, and stable.

[0005] To achieve the above objectives, this utility model provides a battery pack mounting structure for mounting a battery pack to a vehicle body, comprising:

[0006] The bracket is detachably fixed to the vehicle body. The bracket includes a connecting plate and two first mounting plates symmetrically arranged at both ends of the connecting plate. The two ends of the connecting plate are detachably connected to the two first mounting plates respectively. Each of the two first mounting plates is provided with a first snap-fit ​​part.

[0007] A second mounting plate is fixed to the battery pack. The second mounting plate is provided with a second snap-fit ​​portion, which can be connected to the first snap-fit ​​portion to fix the second mounting plate to the bracket.

[0008] According to the battery pack mounting structure described above, the second mounting plate is fixedly connected to the battery panel by welding.

[0009] According to the battery pack mounting structure described above, there are two second mounting plates, which are symmetrically arranged on both sides of the battery pack. Each second mounting plate has a second snap-fit ​​portion at both ends, and each first mounting plate has a first snap-fit ​​portion at both ends. The multiple second snap-fit ​​portions correspond one-to-one with the multiple first snap-fit ​​portions.

[0010] According to the battery pack mounting structure described above, the first snap-fit ​​part is configured as a snap-fit ​​slot, and the second snap-fit ​​part is configured as a snap-fit ​​block, wherein the snap-fit ​​block can extend into the snap-fit ​​slot.

[0011] According to the battery pack mounting structure described above, the bottom of the first mounting plate is provided with a curved upward limiting plate, and the limiting plate and the first mounting plate together form the slot with an upward opening, and the card block can be inserted into the slot from top to bottom.

[0012] According to the battery pack mounting structure described above, the second mounting plate is arranged vertically on the battery pack, and the second mounting plate is provided with a clearance groove, which is located directly below the locking block, and the limiting plate can pass through the clearance groove and be located inside the locking block.

[0013] According to the battery pack mounting structure described above, the bracket is generally H-shaped, and the two ends of the connecting plate are respectively connected to the middle of the two first mounting plates, and the bracket can be arranged vertically on the vehicle body.

[0014] According to the battery pack mounting structure described above, the first mounting plate has a plurality of first threaded holes in the middle, and the connecting plate has a plurality of second threaded holes at both ends, with the plurality of second threaded holes corresponding one-to-one with the plurality of first threaded holes.

[0015] According to the battery pack mounting structure described above, both ends of the first mounting plate are provided with mounting through holes, which can cooperate with protrusions on the vehicle body to fix the bracket.

[0016] An electric vehicle, comprising:

[0017] Vehicle body;

[0018] The battery pack mounting structure as described above;

[0019] A battery pack, which is fixed to the vehicle body by the battery pack mounting structure, and is used to supply power to the vehicle body.

[0020] This utility model has the following beneficial effects:

[0021] 1. The bracket includes a detachable connecting plate and a first mounting plate, which is a split design. The connecting plate and the two first mounting plates can be molded separately, which requires less material and can reduce material waste.

[0022] 2. The second mounting plate can move directly from top to bottom, driving the locking block to insert into the slot, thus completing the connection between the second mounting plate and the bracket, thereby completing the assembly of the battery pack and the vehicle body. Its assembly and disassembly are relatively convenient, and it will not loosen due to vibration, with good stability.

[0023] 3. The second mounting plate is fixed to the battery pack by welding, which ensures good stability and eliminates concerns about it falling off due to loosening. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the installation structure and battery pack assembly of an embodiment;

[0025] Figure 2 This is a schematic diagram of the installation structure of an embodiment;

[0026] Figure 3 This is a schematic diagram of the support structure in an embodiment.

[0027] In the picture:

[0028] 100, bracket; 110, connecting plate; 120, first mounting plate; 121, slot; 122, limiting plate; 123, first threaded hole; 124, mounting through hole; 200, second mounting plate; 210, locking block; 220, clearance groove; 300, battery pack. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] like Figure 1-3 As shown, an electric vehicle includes a vehicle body, a battery pack mounting structure, and a battery pack 300. The battery pack 300 is fixed to the vehicle body via the battery pack mounting structure and is used to supply power to the vehicle body.

[0031] One battery pack mounting structure includes a bracket 100 and a second mounting plate 200. The bracket 100 is detachably fixed to the vehicle body, and the second mounting plate 200 is fixed to the battery pack 300. The battery pack 300 is detachably connected to the vehicle body by the snap-fit ​​between the second mounting plate 200 and the bracket 100. Compared with bolt connection, this connection method has higher assembly and disassembly efficiency, and there is no need to worry about loosening caused by vibration.

[0032] Specifically, the bracket 100 includes a connecting plate 110 and two first mounting plates 120 symmetrically arranged at both ends of the connecting plate 110. The two ends of the connecting plate 110 are detachably connected to the two first mounting plates 120, that is, the bracket 100 is designed as a split unit. The connecting plate 110 and the two first mounting plates 120 can be formed separately, and each requires a small amount of molding material. If the connecting plate 110 and the two first mounting plates 120 need to be formed as a single piece, it would require a large piece of sheet material, and then the sheet material would need to be processed and the excess material would be cut off, which would result in a large amount of material waste. By adopting the split design in this embodiment, each piece is formed separately, and there is less excess material, thus reducing material waste.

[0033] Specifically, each of the two first mounting plates 120 is provided with a first snap-fit ​​part, and the second mounting plate 200 is provided with a second snap-fit ​​part. The second snap-fit ​​part can be connected with the first snap-fit ​​part to fix the second mounting plate 200 to the bracket 100. That is, the battery pack 300 is detachably installed to the vehicle body by snap-fit. Compared with conventional bolt connection, snap-fit ​​is more convenient and faster.

[0034] In this embodiment, in order to ensure the stability of the connection between the second mounting plate 200 and the battery pack 300, the second mounting plate 200 is fixedly connected to the battery plate by welding, which improves the strength between the second mounting plate 200 and the battery plate and avoids loosening due to vibration or excessive force. Of course, the second mounting plate 200 is connected to the housing of the battery pack 300.

[0035] Specifically, there are two second mounting plates 200, which are symmetrically arranged on both sides of the battery pack 300. Each second mounting plate 200 has a second snap-fit ​​portion at both ends, and each first mounting plate 120 has a first snap-fit ​​portion at both ends. The multiple second snap-fit ​​portions correspond one-to-one with the multiple first snap-fit ​​portions. That is, in this embodiment, there are a total of four second snap-fit ​​portions on the two second mounting plates 200 and a total of four first snap-fit ​​portions on the two first mounting plates 120. The four second snap-fit ​​portions correspond one-to-one with the four first snap-fit ​​portions, which means that the installation and positioning are achieved simultaneously from the four corners of the battery pack 300. This can ensure the stability of the battery pack 300 installation, and at the same time, the stress points are evenly divided into four parts, with smaller and more uniform stress at each point, preventing breakage due to excessive stress.

[0036] Specifically, the first snap-fit ​​part is configured as a slot 121, and the second snap-fit ​​part is configured as a snap-fit ​​block 210. The snap-fit ​​block 210 can extend into the slot 121. The connection between the first mounting plate 120 and the second mounting plate 200 is realized by the snap-fit ​​between the snap-fit ​​block 210 and the slot 121. In this embodiment, in order to facilitate the assembly of the snap-fit ​​block 210 and the slot 121, the opening of the slot 121 faces upward. When inserting the snap-fit ​​block 210, it can be inserted from top to bottom, which makes the operation more convenient.

[0037] In this embodiment, a curved upward limiting plate 122 is provided at the bottom of the first mounting plate 120. The limiting plate 122 and the first mounting plate 120 together form a hook-like slot 121, and the slot 121 is used to provide support for the second mounting plate 200.

[0038] Of course, in order to prevent the battery pack 300 from shaking after assembly, the fit between the slot 121 and the block 210 can be set as an interference fit. The slot 121 can be used to clamp the block 210, which can prevent the battery pack 300 from shaking easily.

[0039] Specifically, the width of the card slot 121 can be set to 6mm, and the thickness of the card block 210 can be set to 7mm. When it is inserted into the card slot 121, it can squeeze the inner wall of the card slot 121 to achieve clamping.

[0040] Of course, in order to allow the card block 210 to be inserted into the card slot 121, its limiting plate 122 needs to be set as a sheet metal part with a certain elasticity, and the card block 210 can be clamped by the elastic deformation of the limiting plate 122.

[0041] Similarly, in this embodiment, the bracket 100 is arranged vertically on the vehicle body, that is, the two first mounting plates 120 are symmetrically arranged on the upper and lower sides of the vehicle body in the vertical direction, and the second mounting plate 200 is also arranged vertically on the battery pack 300. Therefore, the up and down movement of the second mounting plate 200 can directly drive the card block 210 to move up and down, which makes it easy for the card block 210 to be inserted into or removed from the card slot 121.

[0042] In this embodiment, the locking block 210 is part of the second mounting plate 200 itself. In order for part of the second mounting plate 200 to be smoothly inserted into the slot 121, a clearance groove 220 is provided on the second mounting plate 200. The clearance groove 220 is a through groove, and the part of the second mounting plate 200 above the clearance groove 220 is the locking block 210. That is, the clearance groove 220 is located directly below the locking block 210. The limiting plate 122 can pass through the clearance groove 220 to the other side of the second mounting plate 200. That is, the limiting plate 122 and the first mounting plate 120 are located on the two sides of the second mounting plate 200, respectively. That is, the limiting plate 122 can be located inside the locking block 210, and the first mounting plate 120 can be located outside the locking block 210. When the locking block 210 descends, it can be locked into the slot 121.

[0043] Of course, in this embodiment, both the bracket 100 and the second mounting plate 200 are arranged in the vertical direction. They can also be arranged in the horizontal direction, and the assembly of the two can also be achieved. This should not exceed the scope of this application.

[0044] In this embodiment, the bracket 100 is generally H-shaped, that is, the two ends of the connecting plate 110 are respectively connected to the middle of the two first mounting plates 120. The H-shaped structure can ensure the overall strength of the bracket 100, and at the same time reduce the material requirements. Especially when the connecting plate 110 and the two first mounting plates 120 are formed separately, the material requirements are even less, requiring only three narrow sheet metal materials.

[0045] In order to connect and fix the connecting plate 110 to the two first mounting plates 120, a plurality of first threaded holes 123 are provided in the middle of the first mounting plate 120, and a plurality of second threaded holes are provided at both ends of the connecting plate 110. The plurality of second threaded holes correspond one-to-one with the plurality of first threaded holes 123. That is, a screw can be installed in the connecting hole between the first threaded hole 123 and the second threaded hole, and the connecting plate 110 is locked by the screw or bolt to prevent the connecting plate 110 from separating from the first mounting plate 120.

[0046] To assemble the bracket 100 with the vehicle body, mounting through holes 124 are provided at both ends of the first mounting plate 120. These mounting through holes 124 can engage with protrusions on the vehicle body to fix the bracket 100 and initially position the bracket 100 on the vehicle body. This initial positioning is simple and quick. Of course, to achieve complete positioning of the bracket 100, a third threaded hole can also be provided on the vehicle body. The third threaded hole can communicate with the first threaded hole 123. The bolts in the connecting holes of the first threaded hole 123 and the second threaded hole can also be inserted into the third threaded hole, thereby achieving complete positioning of the bracket 100 with the vehicle body.

[0047] In this embodiment, the installation process of the battery pack 300 is as follows:

[0048] 1. Fix the bracket 100 to the vehicle body through the mounting through hole 124 to initially position the bracket 100;

[0049] II. Use bolts to achieve complete positioning of bracket 100 and vehicle body;

[0050] 3. Lift up the battery pack 300 so that the locking block 210 on the second mounting plate 200 is aligned with the locking slot 121 on the bracket 100;

[0051] Fourth, slowly rotate the battery pack 300 so that the locking block 210 automatically inserts into the locking slot 121 under the action of gravity, thus completing the connection between the battery pack 300 and the vehicle body.

[0052] Of course, the disassembly process of the battery pack 300 is the reverse of the installation process. Simply lift the battery pack 300 so that the clip 210 can be removed from the slot 121.

[0053] Of course, in addition to electric vehicles, the installation structure of this battery pack 300 can also be used in energy storage power stations and other applications.

[0054] The technical solution of this utility model has been described in detail above with reference to the accompanying drawings. The described embodiments are used to help understand the concept of this utility model. The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains can make various modifications or additions to the described specific embodiments or use similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0055] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0056] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0058] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A battery pack mounting structure for mounting a battery pack to a vehicle body, characterized in that, include: The bracket is detachably fixed to the vehicle body. The bracket includes a connecting plate and two first mounting plates symmetrically arranged at both ends of the connecting plate. The two ends of the connecting plate are detachably connected to the two first mounting plates respectively. Each of the two first mounting plates is provided with a first snap-fit ​​part. A second mounting plate is fixed to the battery pack. The second mounting plate is provided with a second snap-fit ​​portion, which can be connected to the first snap-fit ​​portion to fix the second mounting plate to the bracket.

2. The battery pack mounting structure according to claim 1, characterized in that, The second mounting plate is fixedly connected to the battery pack by welding.

3. A battery pack mounting structure according to claim 1 or 2, characterized in that, The second mounting plate is provided in two symmetrical arrangements on both sides of the battery pack. Each second mounting plate has a second snap-fit ​​portion at both ends, and each first mounting plate has a first snap-fit ​​portion at both ends. The multiple second snap-fit ​​portions correspond one-to-one with the multiple first snap-fit ​​portions.

4. The battery pack mounting structure according to claim 3, characterized in that, The first latching part is configured as a latching slot, and the second latching part is configured as a latching block, wherein the latching block can extend into the latching slot.

5. The battery pack mounting structure according to claim 4, characterized in that, The bottom of the first mounting plate is provided with an upwardly curved limiting plate. The limiting plate and the first mounting plate together form an upwardly opening slot, and the card block can be inserted into the slot from top to bottom.

6. The battery pack mounting structure according to claim 5, characterized in that, The second mounting plate is arranged vertically on the battery pack, and the second mounting plate is provided with a clearance groove, which is located directly below the card block. The limiting plate can pass through the clearance groove and is located inside the card block.

7. The battery pack mounting structure according to claim 1, characterized in that, The bracket is generally H-shaped, and the two ends of the connecting plate are respectively connected to the middle of the two first mounting plates. The bracket can be arranged vertically on the vehicle body.

8. The battery pack mounting structure according to claim 7, characterized in that, The first mounting plate has a plurality of first threaded holes in the middle, and the connecting plate has a plurality of second threaded holes at both ends, with each of the plurality of second threaded holes corresponding to one of the plurality of first threaded holes.

9. A battery pack mounting structure according to claim 7, characterized in that, The first mounting plate has mounting through holes at both ends, which can be engaged with protrusions on the vehicle body to fix the bracket.

10. An electric vehicle, characterized in that, include: Vehicle body; The battery pack mounting structure as described in any one of claims 1-9; A battery pack, which is fixed to the vehicle body by the battery pack mounting structure, and is used to supply power to the vehicle body.

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