Electric excavator and battery mounting device thereof

Abstract

The utility model discloses an electric excavator and a battery mounting device thereof, and the battery mounting device comprises a first bracket, a third bracket arranged below the first bracket, and a plurality of second brackets arranged between the first bracket and the third bracket, mounting plates are adopted for fixing between the first bracket and the second brackets, between two adjacent second brackets and between the second brackets and the third bracket, a base plate is arranged at the bottom of the third bracket, a shock pad is arranged at the bottom of the base plate, a partition plate is arranged at the top of the second bracket, and a battery is placed at the top of the partition plate; the device is simple in structure and convenient to disassemble and assemble, accurate positioning is achieved through the detachable assembly type structural design and cooperation of the limiting blocks, the limiting columns, the bearing columns and other components, traditional welding is replaced with installation plate and bolt connection, the problems of stress concentration and deformation are avoided, the structural stability of the battery installation device is remarkably improved, and the service life of the battery installation device is prolonged. The modular design simplifies the assembly process, reduces the consumption of manpower and material resources, and improves the production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of excavator battery pack installation technology, specifically relating to an electric excavator and its battery installation device. Background Technology

[0002] In the current electric excavator market, mainstream products mainly rely on motors and power batteries as their power source. These excavators require a large power output when working, and to meet this demand, they often need to be equipped with a large number of power batteries. However, this also brings a series of problems. Due to the large number of batteries, their overall volume also increases accordingly, and the requirements for the battery installation structure are relatively high.

[0003] In existing technologies, most electric excavator battery mounting structures adopt a rectangular beam and integral welding method for each bracket. While this structure meets installation requirements to a certain extent, its disadvantages are also quite obvious. First, due to possible errors and stress concentrations during the welding process, the entire mounting structure is prone to deformation during use, which may cause difficulties in battery installation and fixation, and even threaten the safe use of the battery. Second, because the battery is large and heavy, existing mounting structures often require a lot of manpower and resources for battery assembly, which not only increases production costs but also reduces production efficiency. Furthermore, the large size and complex structure of the entire mounting structure make overall hoisting extremely inconvenient, which not only increases the difficulty of transportation and installation but may also cause safety hazards during hoisting. In summary, there is an urgent need for an electric excavator and its battery mounting device. Utility Model Content

[0004] To address some or all of the technical problems existing in the prior art, this utility model provides a battery mounting device for an electric excavator, wherein the battery is disposed within the battery mounting device. The battery mounting device for the electric excavator includes a first bracket, a third bracket disposed below the first bracket, and a plurality of second brackets disposed between the first bracket and the third bracket, wherein:

[0005] The first bracket has a first connecting hole on each of its four sides, and a limit block is provided at each of the four corners of the first bracket. The bottom of the limit block has a first limiting hole.

[0006] The second bracket has second connecting holes around its four sides, and limit posts are set at the four corners of the second bracket. Each limit post has a first insert block at its top and a second limit hole at its bottom. A partition is set at the top of the second bracket. A baffle is connected between the two limit posts along the width direction of the second bracket. The baffle has a second connecting hole on its outer side. A first support plate is also connected to the outer periphery of the top of the limit post. The first support plate has a second connecting hole on its outer side.

[0007] The third support is provided with a support column at each of the four corners. The top of the support column is provided with a second insert block and the bottom is provided with a pad. A fixing plate is connected between the two support columns along the width direction of the third support. A third connecting hole is opened on the outer side of the fixing plate. A second support plate is also connected to the outer periphery of the top of the support column. The third connecting hole is opened on the outer side of the second support plate.

[0008] Furthermore, in the battery mounting device for the electric excavator described above, the first bracket and the second bracket, two adjacent second brackets, and the second bracket and the third bracket are all fixed by mounting plates.

[0009] Furthermore, in the aforementioned battery mounting device for electric excavators, the mounting plate is provided with through holes that match the first connecting hole, the second connecting hole, and the third connecting hole, and the mounting plate can be fixed by bolts.

[0010] In one specific embodiment, in the battery mounting device for the electric excavator described above, a shock-absorbing pad is provided at the bottom of the pad plate.

[0011] Furthermore, in the aforementioned battery mounting device for an electric excavator, the battery is disposed on top of the partition plate.

[0012] In one specific embodiment, in the battery mounting device for the electric excavator described above, heat dissipation holes are provided through the partition plate.

[0013] On the other hand, the present invention also provides an electric excavator, which includes the above-mentioned battery mounting device.

[0014] The battery mounting device for electric excavators of this utility model has the following advantages and beneficial effects:

[0015] (1) This device achieves precise positioning by using the cooperation of components such as limit blocks, limit columns, and support columns through a detachable assembly structure design. It replaces traditional welding with mounting plates and bolt connections, avoiding stress concentration and deformation problems, significantly improving the structural stability of the battery mounting device. The modular design simplifies the assembly process, reduces manpower and material consumption, improves production efficiency, and reduces production costs.

[0016] (2) The split structure facilitates the individual transportation and rapid on-site assembly of each component, reducing the difficulty of hoisting and safety hazards. The shock-absorbing pad at the bottom of the pad effectively absorbs vibration, and the heat dissipation holes on the partition promote air circulation, creating a stable working environment for the battery and extending its service life. The detachable structure also facilitates the maintenance and replacement of the battery. The overall solution has significant advantages in terms of structural stability, assembly convenience, transportation safety, shock absorption and heat dissipation performance and maintenance convenience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for further understanding of the embodiments of this utility model and constitute a part of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0018] Figure 1 This is a schematic diagram of the battery mounting device for an electric excavator according to the present invention.

[0019] Figure 2 This is a schematic diagram of the structure of the first bracket in the battery mounting device for an electric excavator according to this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second bracket in the battery mounting device for an electric excavator according to this utility model;

[0021] Figure 4 This is a schematic diagram of the third bracket in the battery mounting device for an electric excavator according to this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1-First bracket, 11-First connecting hole, 12-Limiting block, 2-Second bracket, 21-Second connecting hole, 22-Limiting post, 23-First insert block, 24-First support plate, 25-Partition plate, 26-Baffle plate, 3-Third bracket, 31-Supporting post, 32-Second insert block, 33-Pad plate, 34-Fixing plate, 35-Second support plate, 36-Third connecting hole, 4-Mounting plate, 5-Shock-absorbing pad, 6-Heat dissipation hole, 7-Battery. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1 to 4 As shown, this utility model discloses an electric excavator and its battery installation device.

[0026] On one hand, this utility model discloses a battery mounting device for an electric excavator, wherein a battery 7 is disposed within the battery mounting device. The device comprises a first bracket 1, a third bracket 3 disposed below the first bracket 1, and multiple second brackets 2 disposed between the first bracket 1 and the third bracket 3. The first bracket 1, second brackets 2, and third brackets 3 are all made of high-strength steel and are rectangular flat plates. The first bracket 1 has first connecting holes 11 on all four sides, and limit blocks 12 are disposed at each of the four corners of the first bracket 1, with first limiting holes (not shown in the figure) at the bottom of each limit block 12. The second brackets 2 have second connecting holes 21 on all four sides, and limit posts 22 are disposed at each of the four corners of the second brackets 2. The top of the second bracket 2 is provided with a first insert 23 and the bottom is provided with a second limiting hole (not shown in the figure). The top of the second bracket 2 is provided with a partition 25. A baffle 26 is connected between the two limiting posts 22 along the width direction of the second bracket 2. A second connecting hole 21 is opened on the outer side of the baffle 26. A first support plate 24 is also connected to the outer periphery of the top of the limiting post 22. A second connecting hole 21 is opened on the outer side of the first support plate 24. The four corners of the third bracket 3 are respectively provided with a receiving post 31. The top of the receiving post 31 is provided with a second insert 32 and the bottom is provided with a pad 33. A fixing plate 34 is connected between the two receiving posts 31 along the width direction of the third bracket 3. A third connecting hole 36 is opened on the outer side of the fixing plate 34. A second support plate 35 is also connected to the outer periphery of the top of the receiving post 31. A third connecting hole 36 is opened on the outer side of the second support plate 35.

[0027] Furthermore, in the battery mounting device for electric excavators of this utility model, mounting plates 4 are used to fix the first bracket 1 and the second bracket 2, the two adjacent second brackets 2, and the second bracket 2 and the third bracket 3, making the device more stable and able to withstand greater loads.

[0028] Furthermore, in the battery mounting device for electric excavators of this utility model, the mounting plate 4 is provided with through holes that match the first connecting hole 11, the second connecting hole 21, and the third connecting hole 36. The mounting plate 4 can be fixed by bolts. This arrangement makes it more convenient for workers to disassemble the first bracket 1, the second bracket 2, and the third bracket 3.

[0029] As a specific embodiment, in the battery mounting device for electric excavators of this utility model, a shock-absorbing pad 5 is provided at the bottom of the pad 33. The shock-absorbing pad 5 is made of rubber material and its shape matches the bottom of the pad 33. It is fixed to the bottom of the pad 33 by bolts. This arrangement can reduce the impact and vibration of the excavator on the battery mounting device during operation and protect the safe use of the battery 7.

[0030] Furthermore, in the battery mounting device for an electric excavator of this utility model, the battery 7 is disposed on the top of the partition 25.

[0031] In one specific embodiment, in the battery mounting device for electric excavators of this utility model, a heat dissipation hole 6 is provided through the partition plate 25. This arrangement facilitates the placement and fixing of the battery 7, improves the heat dissipation effect of the battery 7, and extends the service life of the battery 7.

[0032] On the other hand, the present invention also provides an electric excavator, which includes the above-mentioned battery mounting device.

[0033] The assembly process of the battery mounting device for electric excavators according to this utility model is as follows:

[0034] First, assemble the battery 7 with the first bracket 1, the second bracket 2, and the third bracket 3 respectively. Then, place the third bracket 3 with the battery 7 installed on the platform. According to the actual needs of the use process, place a predetermined number of second brackets 2 with the battery 7 installed on top of the third bracket 3. Then, place the first bracket 1 on top of the second bracket 2 at the top. During the stacking of the brackets, fix each bracket in turn with the mounting plate 4. For example, first fix the bottom third bracket 3 to the bottom second bracket 2 with the mounting plate 4, and then fix the second bracket 2 on top of it again with the mounting plate 4. Another second bracket 2, and so on, until all brackets are installed. During the installation process, the third bracket 3 is connected to the second bracket 2 by inserting the second insert 32 into the second guide hole. Adjacent second brackets 2 are connected by inserting the first insert 23 of the lower second bracket 2 into the second guide hole of the upper second bracket 2. The first bracket 1 and the second bracket 2 are connected by inserting the first insert 23 into the first guide hole. When fixing each bracket with the mounting plate 4, the mounting plate 4 needs to be aligned between two adjacent brackets, and then the fastening bolts are screwed into the through holes and the corresponding connection holes in sequence for fixing.

[0035] In summary, compared with the prior art, the battery mounting device for electric excavators of this utility model has the following advantages and beneficial effects:

[0036] (1) This device achieves precise positioning by using the cooperation of components such as limit block 12, limit column 22, and support column 31 through a detachable assembly structure design. The installation plate 4 and bolt connection replace traditional welding, avoiding stress concentration and deformation problems, significantly improving the structural stability of the battery installation device. The modular design simplifies the assembly process, reduces manpower and material consumption, improves production efficiency, and reduces production costs.

[0037] (2) The split structure facilitates the individual transportation and rapid on-site assembly of each component, reducing the difficulty of hoisting and safety hazards. The shock-absorbing pad 5 at the bottom of the pad 33 effectively absorbs vibration, and the heat dissipation holes 6 on the partition 25 promote air circulation, creating a stable working environment for the battery 7 and extending its service life. The detachable structure also facilitates the maintenance and replacement of the battery 7. The overall solution has significant advantages in terms of structural stability, assembly convenience, transportation safety, shock absorption and heat dissipation performance and maintenance convenience.

[0038] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement state shown in the accompanying drawings.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery mounting device for an electric excavator, wherein the battery is disposed within the battery mounting device, characterized in that, The battery mounting device for an electric excavator includes a first bracket, a third bracket disposed below the first bracket, and a plurality of second brackets disposed between the first bracket and the third bracket, wherein: The first bracket has a first connecting hole on each of its four sides, and a limit block is provided at each of the four corners of the first bracket. The bottom of the limit block has a first limiting hole. The second bracket has second connecting holes around its four sides, and limit posts are set at the four corners of the second bracket. Each limit post has a first insert block at its top and a second limit hole at its bottom. A partition is set at the top of the second bracket. A baffle is connected between the two limit posts along the width direction of the second bracket. The baffle has a second connecting hole on its outer side. A first support plate is also connected to the outer periphery of the top of the limit post. The first support plate has a second connecting hole on its outer side. The third support is provided with a support column at each of the four corners. The top of the support column is provided with a second insert block and the bottom is provided with a pad. A fixing plate is connected between the two support columns along the width direction of the third support. A third connecting hole is opened on the outer side of the fixing plate. A second support plate is also connected to the outer periphery of the top of the support column. The third connecting hole is opened on the outer side of the second support plate.

2. The battery mounting device for an electric excavator according to claim 1, characterized in that, The first bracket and the second bracket, two adjacent second brackets, and the second bracket and the third bracket are all fixed with mounting plates.

3. The battery mounting device for an electric excavator according to claim 2, characterized in that, The mounting plate has through holes that match the first connecting hole, the second connecting hole, and the third connecting hole, and the mounting plate can be fixed with bolts.

4. The battery mounting device for an electric excavator according to claim 1, characterized in that, The bottom of the pad is provided with a shock-absorbing pad.

5. The battery mounting device for an electric excavator according to claim 1, characterized in that, The battery is located on top of the separator.

6. The battery mounting device for an electric excavator according to claim 1, characterized in that, The partition plate has through-holes for heat dissipation.

7. An electric excavator, characterized in that, The electric excavator includes the battery mounting device according to any one of claims 1-6.

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