CN218498276U

CN218498276U - Energy storage device for engineering machinery

Info

Publication number: CN218498276U
Application number: CN202221940670.8U
Authority: CN
Inventors: 吴韦林; 朱斌强; 赵明; 唐斌; 吴方明; 李建华; 农棉庚
Original assignee: Guangxi Liugong Machinery Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-02-17
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses an energy storage device for engineering machinery, which comprises a frame and an energy storage module, wherein the energy storage module comprises a bracket and at least two battery units which are electrically connected with each other, each battery unit is of a cuboid structure, each adjacent battery unit is arranged on the bracket in a long-edge parallel mode, connecting plates are arranged on two sides of the bracket positioned on the long-edge side of each battery unit, and a locking assembly and a shock pad assembly are respectively arranged on the connecting plates; the cross section of the transition mounting plate is bent, and the side surface of the transition mounting plate is connected with the inner side surface of the frame; the two sides of the bottom in the frame are respectively provided with a bottom mounting plate, and the locking assembly can be selectively connected with the bottom mounting plate or the top surface of the transition mounting plate, so that the energy storage modules can be arranged in an overlapped mode in the vertical direction of the frame. The utility model provides the high effective utilization of whole car finite space solves the problem that electric engineering machinery continued a journey anxiety, battery system safe and reliable and convenient production was made.

Description

Energy storage device for engineering machinery

Technical Field

The utility model relates to a new forms of energy technical field specifically is to relate to energy memory with battery-driven motor and engineering vehicle.

Background

Under the situation of energy conservation and emission reduction and increasingly tense petroleum, the electromotion of engineering machinery is trending. At present, battery packs are designed according to the structural space of the whole vehicle, and the battery packs can be made into 1 whole body. And pure electric engineering machinery starts late, needs battery capacity big, and is far less than pure electric vehicles in output, consequently, solves pure electric engineering machinery's energy storage problem through directly adopting a plurality of strings of batch battery package, the parallelly connected of using on big bus or commercial car, is present relatively economy, quick solution. However, how to arrange battery packs as many as possible in a limited space improves the endurance of the whole vehicle; the working condition of the engineering machinery is severe, and the battery pack needs better protection; meanwhile, the problems to be solved urgently are that the manufacturing, the assembly and the subsequent maintenance are convenient.

The power battery combined support or the power battery arrangement structure disclosed by the prior art has the advantages of low space utilization rate, no shock absorption or poor shock absorption effect, large overall shaking and influence on the service life of a battery system, and the like, such as 'CN 202021722454.7-power battery combined support and engineering machinery', 'CN 202110094757.1-a battery arrangement structure for an electric loader'.

The preamble patent of the scheme 'CN 202010909910.7' discloses an energy storage assembly, and the manufacturing and assembly are greatly improved by adopting a modular design; each battery pack is independently damped, and reliable operation of a battery system is guaranteed. However, the battery modules are arranged in a long structure, namely, the cells in the modules are arranged in a back-to-back battery arrangement mode, which is only designed for an excavator platform, and the space utilization rate is further required to be excavated to improve the cruising ability of the whole excavator; secondly, the structure of the bracket is complicated.

The information disclosed in the background section above is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

To the current defect of the aforesaid, the utility model aims to provide an energy memory for engineering machine tool improves the effective utilization ratio of whole car finite space, solves the problem of electric engineering machine tool continuation of the journey anxiety, battery system safe and reliable and convenient manufacturing.

The technical scheme of the utility model as follows:

an energy storage device for engineering machinery comprises a frame and an energy storage module, wherein the energy storage module comprises a bracket and at least two battery units which are electrically connected with each other, the battery units are of cuboid structures, each adjacent battery unit is arranged on the bracket in a long-edge parallel mode, connecting plates are arranged on two sides of the bracket on the long-edge side of each battery unit, and a locking assembly and a shock pad assembly are respectively arranged on the connecting plates; the cross section of the transition mounting plate is bent, and the side surface of the transition mounting plate is connected with the inner side surface of the frame; the two sides of the bottom in the frame are respectively provided with a bottom mounting plate, and the locking assembly can be selectively connected with the bottom mounting plate or the top surface of the transition mounting plate, so that the energy storage modules can be arranged in an overlapped mode in the vertical direction of the frame.

Specifically, the frame comprises a front frame plate, and a connection port is arranged on the short side surface of each battery unit; the front frame plate is provided with a first process hole corresponding to the connecting port.

Specifically, the frame includes a side frame plate provided with a second tooling hole corresponding to a connection of the connecting plate.

Specifically, the bottom of the bracket is provided with a reinforcing rib, and the reinforcing rib is arranged between two adjacent battery units.

Specifically, lightening holes are formed in the bottom of the bracket, at least two lightening holes are formed in two sides of the reinforcing rib, and the at least two lightening holes are uniformly distributed in the length direction of the battery unit.

Specifically, be provided with the bracket bent plate along the bracket border of battery unit minor face direction, the bracket bent plate is the sheet metal spare that just bends the orientation down with the whole integrated into one piece of bracket.

Specifically, the connecting plate is also provided with a lifting lug.

Specifically, the top of the frame is also provided with a lifting hole.

Specifically, the shock pad subassembly includes the shock pad that corresponds the department setting with locking Assembly, and sets up the enhancement shock pad in the connecting plate bottom.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. according to the scheme, the energy storage module is formed by the parallel arrangement of the long sides of the plurality of battery units, the space utilization rate of each module is higher, and the application range is wider, and the energy storage module can be used for an electric excavator platform, the tail part of an electric loader frame, the tail part of an electric road roller frame and the side surface of an electric mining car frame; the arrangement structure of a battery system is further optimized, the effective utilization rate of the limited space of the whole vehicle is improved, and the endurance anxiety of the electric engineering machinery is improved;

2. by improving the space utilization rate, the distributed installation of the energy storage device can be realized, and the effect of counterweight can be realized under some conditions;

2. the framework and the energy storage module have better protectiveness under the condition of equivalent weight to that of the prior art, and have independent shock absorption, thereby protecting a battery system and prolonging the service life of the battery system;

3. the battery module of this scheme adopts direction hoist and mount about the modularized design, and individual layer subassembly, assembly can all partly adorn, have simplified assembly process.

Description of the figures and reference numerals

Drawings

Fig. 1 is the utility model relates to an energy storage device for engineering machine tool structure sketch.

Fig. 2 is the utility model discloses energy memory's for engineering machine tool assembly schematic diagram.

Fig. 3 is a schematic top view of the energy storage module of the present invention.

Fig. 4 is a schematic view of the bottom of the energy storage module of the present invention.

In the figure, 1-frame, 11-front frame plate, 12-side frame plate, 15-first fabrication hole, 16-second fabrication hole, 17-lifting hole, 18-bottom mounting plate, 2-energy storage module, 21-battery unit, 22-bracket, 221-bracket bent plate, 222-lifting lug, 223-reinforcing rib, 224-reinforcing shock pad, 225-lightening hole, 23-shock pad and 3-transition mounting plate.

Detailed Description

In order to explain the technical content, the achieved objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings. In the description of the present embodiment, it is to be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for convenience of describing the present embodiment and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation and thus should not be construed as limiting the present invention.

The embodiment provides an energy storage device for engineering machinery, as shown in fig. 1, which mainly includes a frame 1 and an energy storage module 2.

Referring specifically to fig. 3, the energy storage module 2 includes a bracket 22, and the embodiment includes three battery units 21 electrically connected to each other, where the battery units 21 are rectangular parallelepiped, and each adjacent battery unit 21 is disposed on the bracket 22 in a manner that long sides thereof are parallel to each other, i.e., arranged in a manner of "side-to-side". This scheme is through adopting the energy storage module that the long limit of a plurality of battery units parallels mode formed, and the space utilization of every module is higher, and the cubic subassembly of formation also can not be approached to rectangular form along with battery unit 21's increase, consequently can adapt to more extensive installation space, has further optimized battery system arrangement structure, improves the effective utilization who puts in order car finite space, improves the anxiety of electric engineering machinery continuation of the journey.

Referring to the bracket shown in fig. 3 and 4, the two sides of the bracket are provided with connecting plates near the long edges of the battery units 21, and the connecting plates are respectively provided with a locking assembly and a shock pad assembly, wherein the locking assembly is used for fixing the whole energy storage module 2, and the shock pad assembly is used for independently damping the single energy storage module 2.

The structure also comprises a transition mounting plate 3 shown in fig. 2, wherein the section of the transition mounting plate 3 is bent, so that a top plane and a side plane are respectively formed, and the side plane of the transition mounting plate 3 is used for being connected with the inner side surface of the frame 1; the top plane is used for being connected with the connecting plate;

referring to the frame 1 shown in fig. 2, bottom mounting plates 18 are further respectively disposed on both sides of the bottom in the frame 1, and the locking assembly can be selectively connected to the bottom mounting plates 18 or the top surface of the transition mounting plate 3, so that a plurality of energy storage modules 2 can be stacked in the vertical direction of the frame 1 as shown in fig. 2.

When the energy storage device is installed, the bottom installation plate 18 is installed at the bottom of the frame 1, then the energy storage module 2 at the bottommost part is hoisted, the locking assembly and the shock pad assembly on the connection plate are installed, and the energy storage module 2 is locked on the bottom installation plate 18 through the locking assembly; then installing a layer of transition installation plate 3 on the inner side surface of the frame 1, and hoisting the energy storage module 2 at the upper part; in some cases, the frame 1 may be pre-installed on the frame and then the energy storage module 2 is hoisted separately, or the frame 1 and the energy storage module 2 may be installed together and then installed on the frame to realize a partial installation process. For example, when the embodiment is applied to an electric road roller and a loader, the energy storage modules 2 can be installed on the frame in advance through the frame 1, and then lifted separately and installed in various spaces of the tail part in a dispersed manner, wherein the energy storage modules can be installed at the tail end of the vehicle in a multi-layer counterweight manner.

As a preferable technical solution of the present embodiment, referring to fig. 2, the frame 1 includes a front frame plate 11, and a connection port is provided on a short side of each battery unit 21; the front frame plate 11 is provided with first tooling holes 15 corresponding to the connection ports so as not to hinder accessibility to the connection ports of the battery cells 21. The frame 1 comprises side frame plates 12, which side frame plates 12 are provided with second tooling holes 16 corresponding to the connection of the connection plates in order not to hinder the mounting of the energy storage modules 2.

As a preferred technical solution of the present embodiment, referring to fig. 4 specifically, the bottom of the bracket 22 is provided with a rib 223, and the rib 223 is disposed between two adjacent battery units 21, so as to further enhance the strength of the module. The bottom of the bracket 22 is provided with lightening holes 225, and at least two lightening holes 225 are arranged on two sides of the reinforcing rib 223, and the at least two lightening holes 225 are uniformly distributed along the length direction of the battery unit 21. Through setting up lightening hole 225 for the overall protection is better under the condition of comparable with prior art weight of energy memory.

As a preferable configuration of the present embodiment, a bracket bent plate 221 is provided on the edge of the bracket 22 along the short side direction of the battery unit 21, and the bracket bent plate 221 is a sheet metal member that is integrally formed with the bracket 22 and has a downward bending direction. The bracket bent plate 221 forms protection for the battery cell 21 of the lower layer.

In order to facilitate vertical hoisting, the connecting plate is further provided with a lifting lug 222, and the top of the frame 1 is further provided with a lifting hole 17, so that the energy storage module 2 or the energy storage device can be hoisted integrally.

In this embodiment, the shock pad subassembly includes the shock pad 23 that corresponds the department setting with locking Assembly, and sets up the enhancement shock pad 224 in the connecting plate bottom, and each energy storage module 2 all possesses independent shock attenuation, further protects battery system, has prolonged its life.

Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides an energy memory for engineering machine tool, includes frame (1) and energy storage module (2), its characterized in that: the energy storage module (2) comprises a bracket (22) and at least two battery units (21) which are electrically connected with each other, wherein the battery units (21) are of a cuboid structure, each adjacent battery unit (21) is arranged on the bracket (22) in a long-edge parallel mode, connecting plates are arranged on two sides of the bracket (22) which are positioned on the long-edge side surfaces of the battery units (21), and a locking assembly and a shock pad assembly are respectively arranged on the connecting plates;

the frame is characterized by further comprising a transition mounting plate (3), the section of the transition mounting plate (3) is bent, and the side face of the transition mounting plate (3) is connected with the inner side face of the frame (1); the two sides of the bottom in the frame (1) are respectively provided with a bottom mounting plate (18), and the locking assembly can be selectively connected with the bottom mounting plate (18) or the top surface of the transition mounting plate (3), so that the energy storage modules (2) can be arranged in an overlapped mode in the vertical direction of the frame (1).

2. The energy storage device for construction machinery according to claim 1, wherein: the frame (1) comprises a front frame plate (11), and a connecting port is arranged on the side surface of the short side of each battery unit (21); the front frame plate (11) is provided with a first fabrication hole (15) corresponding to the connection port.

3. The energy storage device for construction machinery according to claim 1, wherein: the frame (1) comprises a side frame plate (12), the side frame plate (12) being provided with a second fabrication aperture (16) corresponding to the connection of the connection plate.

4. The energy storage device for construction machinery according to claim 1, wherein: the bottom of the bracket (22) is provided with a reinforcing rib (223), and the reinforcing rib (223) is arranged between two adjacent battery units (21).

5. The energy storage device for construction machinery according to claim 4, wherein: the bottom of the bracket (22) is provided with lightening holes (225), at least two lightening holes (225) are arranged on two sides of the reinforcing rib (223), and the lightening holes (225) are uniformly distributed along the length direction of the battery unit (21).

6. The energy storage device for construction machinery according to claim 1, wherein: a bracket bent plate (221) is arranged on the edge of the bracket (22) along the short side direction of the battery unit (21), and the bracket bent plate (221) is a sheet metal piece which is integrally formed with the bracket (22) and is bent downwards.

7. The energy storage device for construction machinery according to claim 1, wherein: lifting lugs (222) are further arranged on the connecting plates.

8. The energy storage device for construction machinery according to claim 1, wherein: the top of the frame (1) is also provided with a lifting hole (17).

9. The energy storage device for construction machinery according to claim 1, wherein: the shock pad assembly comprises a shock pad (23) arranged at a position corresponding to the locking assembly and a reinforced shock pad (224) arranged at the bottom of the connecting plate.