CN216958322U - Power battery pack and electric engineering machinery - Google Patents
Power battery pack and electric engineering machinery Download PDFInfo
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- CN216958322U CN216958322U CN202123033713.2U CN202123033713U CN216958322U CN 216958322 U CN216958322 U CN 216958322U CN 202123033713 U CN202123033713 U CN 202123033713U CN 216958322 U CN216958322 U CN 216958322U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model relates to an electric excavator, aiming at solving the problem that a battery pack in the battery pack on the existing electric engineering machinery is inconvenient to disassemble and assemble, the utility model constructs a power battery pack and the electric engineering machinery, wherein in a battery bracket of the power battery pack, two supporting plates are fixed at the left end and the right end of a base plate, two ends of a multilayer supporting plate are respectively and fixedly connected with the two supporting plates, a plurality of installing positions which are sequentially arranged in the left-right direction are arranged on the base plate and each supporting plate, a battery pack is fixed on each installing position through a fastening piece, a gap between the base plate and the adjacent supporting plate and between the front parts of the two adjacent supporting plates is a disassembling and assembling inlet and outlet of the battery pack, and the bottom of the disassembling and assembling inlet and outlet is flush with the corresponding base plate or supporting plate. In the utility model, each battery pack can be detached from the front side of the mounting position, and the access and exit of the battery pack can be pushed and pulled to enter and exit the mounting position, so that the battery pack is detached without detaching a bracket and the battery pack above the battery pack, and the workload is reduced for later maintenance of the power battery pack.
Description
Technical Field
The utility model relates to an electric excavator, in particular to a power battery pack and an electric engineering machine.
Background
The electric engineering machinery is a novel machinery which is driven by a battery to rotate so as to provide power for the whole machine. Due to the technical level of batteries, the current electric engineering machinery is powered by a plurality of battery packs integrated into a battery pack; therefore, a corresponding battery holder is required to mount and fix the battery pack. Generally, the battery support is arranged on the rear side of the engineering machinery platform, so that the installation reliability of the battery pack is guaranteed, and the effect of balancing the stability of the whole machine can be achieved. The high voltage of the battery pack is distributed as required after passing through the high voltage box. The motor controller converts the high-voltage direct current into alternating current and performs signal interaction with other modules on the whole vehicle, so that the motor is effectively controlled.
On the existing electric engineering machinery, batteries are generally divided into a plurality of groups, and a battery pack of each group forms a closed whole through an assembled bracket and a bracket; if a certain battery pack is damaged, the damaged battery pack can be replaced only by first dismounting the covering piece, the battery pack on the upper layer and the bracket frame.
In addition, a high-voltage box, a motor controller and a distribution box which are equipped with the electric engineering machinery are all connected with the battery, but the high-voltage box, the motor controller and the distribution box are independently fixed on the covering part bracket; after the battery pack and the covering part bracket are arranged on the platform, the assembly of the battery pack, the covering part bracket and the platform is difficult; the connection and assembly space of the three and the battery is more restricted subsequently, and the assembly efficiency of the whole machine is severely restricted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a battery pack in a battery pack on an electric engineering machine is inconvenient to disassemble and assemble, and provides a power battery pack and the electric engineering machine, which are convenient for disassembling and assembling the battery pack so as to reduce the workload of maintenance of the battery pack.
The technical scheme for realizing the purpose of the utility model is as follows: a power battery pack is constructed, which comprises a battery bracket and a plurality of battery packs, and is characterized in that the battery bracket comprises a base plate, a plurality of supporting plates and two supporting plates, the two supporting plates are respectively and vertically fixed at the upper sides of the left and right ends of the base plate, the plurality of supporting plates are arranged at intervals in the vertical direction and are arranged between the left and right supporting plates in parallel with the base plate, the two ends of each supporting plate are respectively and fixedly connected with the two supporting plates, the base plate and each supporting plate are provided with a plurality of mounting positions which are sequentially arranged in the left-right direction, each mounting position is fixed with one battery pack through a fastener, the gaps between the base plate and the adjacent supporting plates and between the two adjacent supporting plates at the front part are the dismounting inlet and outlet of the battery pack, the bottom of dismouting access & exit between bed plate and the adjacent layer board flushes with the bed plate, between two adjacent layer boards the bottom of dismouting access & exit flushes with the bed plate. In the utility model, the battery pack can be pushed into the mounting position from the front side dismounting and mounting access of the mounting position or pulled out from the dismounting and mounting access after the fastener of the battery pack is dismounted, the dismounting and mounting of the battery pack do not need to dismount the bracket and the battery pack above the battery pack, and the workload is reduced for the later-stage maintenance of the power battery pack.
In the power battery pack, longitudinal reinforcing ribs which move back and forth are arranged on the lower side of each supporting plate between two adjacent mounting positions; the rear end edge of the supporting plate is provided with a rear bending edge which is bent downwards, the front end edge is provided with a front reinforcing rib, and the front reinforcing rib is detachably arranged on the lower side surface of the corresponding supporting plate; the front end and the rear end of the longitudinal reinforcing rib are respectively and correspondingly connected with the front reinforcing rib and the rear bending edge. The longitudinal reinforcing ribs, the back bending edges and the front reinforcing ribs all play a role in reinforcing the supporting plate, and the supporting plate is prevented from bending and deforming. The strengthening rib of front side is demountable installation, and when the battery package on certain layer of dismouting, can demolish the preceding strengthening rib on this battery package top layer board temporarily, avoids preceding strengthening rib and takes place to interfere by dismouting battery package.
In the power battery pack, the lower sides of the left end and the right end of each supporting plate are provided with side reinforcing ribs in the front-back direction, the rear ends of the side reinforcing ribs are connected with the rear bending edges, and the front ends of the side reinforcing ribs are provided with front bending edges bent towards the inner side direction; the front reinforcing rib is composed of angle steel, the horizontal edge of the front reinforcing rib is locked and fixed on the lower side of the front edge of the supporting plate through a fastener, and the two ends of the vertical edge of the front reinforcing rib are fixedly connected with the front bending edge of the front end of the left side reinforcing rib and the front bending edge of the front end of the right side reinforcing rib through fasteners respectively.
In the power battery pack, a plurality of supporting platforms for supporting the supporting plate are fixed on the inner side of the supporting plate; the supporting platform is made of angle steel, the vertical edge of the supporting platform is fixedly connected with the supporting plate, and the horizontal edge of the supporting platform is positioned at the lower side of the supporting plate and is fixedly connected with the supporting plate through a fastener.
In the power battery pack, a battery heat dissipation system is installed on the outer side of one of the two supporting plates, and a radiator of the battery heat dissipation system is connected with a cold night inlet and outlet of each battery pack through a pipeline. In the utility model, because the support plates on the left side and the right side are fed with oil in the vertical direction, when a plurality of battery packs are arranged in the left direction and the right direction, the distance between the left support plate and the right support plate is relatively shortened, the saved space can be used for installing a battery heat dissipation system, and the heat dissipation of each battery pack is enhanced.
In the power battery pack, the support plate is a groove-shaped bending plate with bending edges on the front side and the rear side, wherein the notch of the support plate on one side faces outwards, and the notch of the support plate on the other side faces inwards; the battery heat dissipation system is arranged on the support plate with the outward notch and is positioned in the groove of the support plate.
In the power battery pack, the base plate is provided with a mounting hole for connecting a shock absorber, and the left side and the right side below the base plate are respectively provided with a sunken battery bin for mounting a battery pack; each sunken battery compartment is formed by welding a bottom plate, a left side plate, a right side plate and a rear side plate, the top of the sunken battery compartment is fixedly connected with a base plate, and the front side of the sunken battery compartment is provided with a dismounting inlet and a dismounting outlet of a battery pack. In the utility model, the base plate is connected with the frame of the engineering machinery through the shock absorber, the connecting part is positioned at the upper side of the frame or the platform, and the sunken battery compartment is positioned in the frame or the platform, so that the space on the engineering machinery is fully utilized, and the arrangement of multiple battery packs is realized.
Among the above-mentioned power battery group, all be provided with the rectangle fretwork in bed plate, layer board and the backup pad, set up the rectangle fretwork, one is save material, and its two is convenient for ventilate and dispel the heat, the top of backup pad is provided with the lug.
The technical scheme for realizing the purpose of the utility model is as follows: an electric construction machine is constructed, which is characterized by having the aforementioned power battery pack. Furthermore, an electrical appliance mounting bracket is fixedly mounted on the rear side of the battery bracket, and a high-voltage box, a motor controller and a distribution box which are connected with the battery pack are fixedly mounted on the electrical appliance mounting bracket.
Compared with the prior art, each battery pack can be detached from the front side of the mounting position, and the access opening is pushed and pulled to enter and exit the mounting position, so that the bracket and the battery pack above the battery pack are not required to be detached for detaching the battery pack, and the workload is reduced for later-stage maintenance of the power battery pack.
Drawings
Fig. 1 is a schematic view of the mounting structure of the power battery pack of the present invention on a revolving platform of an electric excavator.
FIG. 2 is a schematic diagram of a battery support in the power battery pack of the present invention.
Fig. 3 is a schematic structural diagram of a pallet in the power battery pack of the utility model.
Fig. 4 is a schematic structural diagram of a support plate, a base plate and a sunken battery compartment in the power battery pack of the utility model.
Part names and serial numbers in the figure:
the battery cooling system comprises a rotary platform 10, a battery pack 11, a battery cooling system 12, an electrical appliance mounting support 13, a high-voltage box 14, a distribution box 15, a controller 16, a battery support 20, a base plate 21, a mounting hole 211, a support plate 22, a support plate 23, a rear bending edge 231, a support table 24, a side reinforcing rib 25, a front bending edge 251, a longitudinal reinforcing rib 26, a front reinforcing rib 27, a sunken battery compartment 30, a bottom plate 31, a left side plate 32, a rear side plate 33, a right side plate 34 and a rectangular hollow 40.
Detailed Description
The following description of the embodiments refers to the accompanying drawings.
As shown in fig. 1, the power battery pack in this embodiment is used for an electric excavator, and is installed at the rear of a revolving platform to supply electric power to the excavator to drive a motor.
As shown in fig. 1 and 2, the power battery pack includes a battery support 20, a plurality of battery packs 11, a battery heat dissipation system 12, an electrical appliance mounting bracket 13, and the like.
As shown in fig. 2, the battery holder 20 includes a base plate 21, a plurality of support plates 23, and two support plates 22. The base plate 21 level is arranged, two backup pads 22 are the both ends upside about the base plate 21 of vertical fixation respectively, multilayer layer board 23 interval arrangement is in vertical direction and install with base plate 21 parallelly about between two backup pads 22, the both ends of each layer board 23 respectively with two backup pads 22 fixed connection, base plate 21 and each layer board 23 are arranged three installation position of arranging in proper order about on the direction, be fixed with a battery package 11 through the fastener on each installation position, the anterior space is the dismouting access & exit of battery package between base plate 21 and the adjacent layer board and between double-phase adjacent layer board, the bottom of the dismouting access & exit between base plate 21 and the adjacent layer board 23 flushes with base plate 21, the bottom of the dismouting access & exit between the adjacent two layer boards 23 flushes with the layer board below.
As shown in fig. 3, the lower side of each supporting plate 23 at the position between two adjacent mounting positions is provided with a longitudinal reinforcing rib 26 which runs back and forth in a welding manner; the back end edge of the support plate 23 has a back bent edge 231 bent downward, and the front end edge is provided with a front reinforcing rib 27. The front reinforcing ribs 27 are detachably mounted on the lower side surfaces of the corresponding support plates 23; the front and rear ends of the longitudinal reinforcing rib 26 are correspondingly connected with the front reinforcing rib 27 and the rear bending edge 231, respectively.
As shown in fig. 2, a plurality of support stages 24 for supporting the pallet are fixed to the inner side of the support plate 22; the support platform 24 is made of angle steel, the vertical edge of the support platform is fixedly connected with the support plate 22, and the horizontal edge is positioned at the lower side of the support plate 23 and is fixedly connected with the support plate 23 through a bolt assembly.
As shown in fig. 4, the support plate 22 is a groove-shaped bending plate having bending edges on both the front side and the rear side, the notch of the support plate 22 on the left side faces inward (i.e., in the right direction in the drawing), and the notch of the support plate 22 on the right side faces outward (i.e., in the right direction in the drawing); the battery heat dissipation system 12 is installed in the groove of the right side supporting plate 22, and the radiator of the battery heat dissipation system 12 is connected with the cold liquid inlet and outlet of each battery pack through a pipeline.
Two sunken battery compartments 30 for mounting a battery pack 11 are provided below the base plate 21. The two sunken battery compartments are arranged left and right below the base plate 21 and are arranged at intervals in the left and right direction. Each sunken battery compartment 30 is formed by welding a bottom plate 31, a left side plate 32, a right side plate 34 and a rear side plate 33, the top of the sunken battery compartment is fixedly connected with the base plate 21, and the front side of the sunken battery compartment is a dismounting entrance of a battery pack.
The front and rear sides of the base plate 31 are provided with mounting holes 211 for connection with shock absorbers so that the battery bracket is fixedly mounted to the excavator swing platform 10.
As shown in fig. 1 and 2, an electrical appliance mounting bracket 13 is fixedly mounted on the rear side of the battery bracket 20, and a high voltage box 14, a motor controller 16, and a distribution box 15 connected to the battery pack are fixedly mounted on the electrical appliance mounting bracket 13. The electric appliance mounting bracket 13 is fixedly mounted on the battery bracket 20, and when the machine is assembled, the high-voltage box 14, the motor controller 16, the distribution box 15 and other components can be mounted with the power battery pack and then hoisted to the rotary platform. The arrangement and installation of the high-voltage box, the motor controller and the distribution box are facilitated.
All be provided with rectangle fretwork 40 on bed plate 21, layer board 23 and backup pad 22 and the each board that constitutes formula battery compartment 30 that sinks, set up rectangle fretwork 40, and one is save material, and its two is convenient for ventilate and dispel the heat. A lifting lug 221 is arranged on the top of the supporting plate 22 so as to hoist the power battery pack.
As shown in fig. 1, the power battery pack is mounted at the rear of a revolving platform 10 of the excavator, wherein the front orientation of the power battery pack coincides with the rear orientation of the revolving platform. The power battery pack is connected with the shock absorber through the mounting hole 211 on the base plate 21 of the power battery pack, so that the power battery pack is mounted on the rotary platform, the sunken battery bin below the base plate is sunken into the rotary platform, and the space in the rotary platform is fully utilized.
In this embodiment, when a certain battery pack 11 is out of order and needs to be disassembled for maintenance or replacement, the front side of the battery pack charging position can be drawn out only by detaching the front reinforcing rib 27 on the supporting plate on the upper layer of the battery pack and the fastener of the battery pack, and all the battery packs and the supporting plate above the battery pack do not need to be disassembled. If the battery pack below the base plate needs to be disassembled, the whole power battery pack needs to be disassembled and hung from the rotary platform, and then the battery pack can be disassembled and taken out.
In this embodiment, the number of battery packs mounted on each layer of supporting plate and the sunken battery compartment below the base plate can be increased, decreased or selected according to specific application conditions, for example, two battery packs are arranged on each layer of supporting plate on a smaller machine type, or the sunken battery compartment is not provided.
The power battery pack can also be used on other engineering machinery such as an electric loader, and the orientation of the battery bracket on the bearing equipment can be adjusted according to requirements, for example, the forward direction of the battery bracket can be consistent with the backward direction of the loader, or the left and right directions of the electric loader, and the electric appliance mounting bracket 13 can also be arranged on the end head opposite to the mounting position of the battery radiator between the batteries according to requirements.
Claims (10)
1. A power battery pack comprises a battery bracket and a plurality of battery packs and is characterized in that the battery bracket comprises a base plate, a plurality of supporting plates and two supporting plates, the two supporting plates are respectively and vertically fixed at the upper sides of the left and right ends of the base plate, the plurality of supporting plates are arranged at intervals in the vertical direction and are arranged between the left and right supporting plates in parallel with the base plate, the two ends of each supporting plate are respectively and fixedly connected with the two supporting plates, the base plate and each supporting plate are provided with a plurality of mounting positions which are sequentially arranged in the left-right direction, each mounting position is fixed with one battery pack through a fastener, the gaps between the base plate and the adjacent supporting plates and between the two adjacent supporting plates at the front part are the dismounting inlet and outlet of the battery pack, the bottom of dismouting access & exit between bed plate and the adjacent layer board flushes with the bed plate, between two adjacent layer boards the bottom of dismouting access & exit flushes with the below layer board.
2. The power battery pack according to claim 1, wherein longitudinal reinforcing ribs running back and forth are arranged on the lower side of each supporting plate at a position between two adjacent mounting positions; the rear end edge of the supporting plate is provided with a rear bending edge which is bent downwards, the front end edge is provided with a front reinforcing rib, and the front reinforcing rib is detachably arranged on the lower side surface of the corresponding supporting plate; the front end and the rear end of the longitudinal reinforcing rib are respectively and correspondingly connected with the front reinforcing rib and the rear bending edge.
3. The power battery pack according to claim 2, wherein the lower sides of the left and right ends of each supporting plate are provided with side reinforcing ribs which move back and forth, the rear ends of the side reinforcing ribs are connected with the rear bending edges, and the front ends of the side reinforcing ribs are provided with front bending edges which are bent towards the inner side; the front reinforcing rib is composed of angle steel, the horizontal edge of the front reinforcing rib is fixedly locked on the lower side of the front edge of the supporting plate through a fastener, and two ends of the vertical edge of the front reinforcing rib are fixedly connected with the front bending edge of the front end of the left side reinforcing rib and the front bending edge of the right side reinforcing rib through fasteners respectively.
4. The power battery pack according to claim 1, wherein a plurality of support stages for supporting the pallet are fixed to the inner side of the support plate; the supporting platform is made of angle steel, the vertical edge of the supporting platform is fixedly connected with the supporting plate, and the horizontal edge of the supporting platform is positioned at the lower side of the supporting plate and is fixedly connected with the supporting plate through a fastener.
5. The power battery pack according to any one of claims 1 to 4, wherein a battery heat dissipation system is installed outside one of the two support plates, and a heat sink of the battery heat dissipation system is connected with a cold liquid inlet and outlet of each battery pack through a pipeline.
6. The power battery pack according to claim 5, wherein the support plates are groove-shaped bent plates having bent edges on both the front side and the rear side, wherein the notch of the support plate on one side faces outward and the notch of the support plate on the other side faces inward; the battery heat dissipation system is arranged on the support plate with the outward notch and is positioned in the groove of the support plate.
7. The power battery pack as claimed in claim 1, wherein the base plate is provided with a mounting hole for connecting a shock absorber, and a sunken battery compartment for mounting at least one battery pack is arranged below the base plate; the sunken battery compartment is formed by welding a bottom plate, a left side plate, a right side plate and a rear side plate, the top of the sunken battery compartment is fixedly connected with a base plate, and the front side of the sunken battery compartment is provided with a dismounting inlet and a dismounting outlet of a battery pack.
8. The power battery pack of claim 1, wherein the base plate, the support plate and the support plate are all provided with rectangular hollows, and the top of the support plate is provided with a lifting lug.
9. An electrical construction machine characterized by a power battery pack according to any one of claims 1 to 8.
10. The electrical engineering machine of claim 9, wherein an electrical installation bracket is fixedly mounted to a rear side of the battery bracket, and a high voltage box, a motor controller, and a distribution box connected to the battery pack are fixedly mounted to the electrical installation bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123033713.2U CN216958322U (en) | 2021-12-06 | 2021-12-06 | Power battery pack and electric engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123033713.2U CN216958322U (en) | 2021-12-06 | 2021-12-06 | Power battery pack and electric engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216958322U true CN216958322U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123033713.2U Active CN216958322U (en) | 2021-12-06 | 2021-12-06 | Power battery pack and electric engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216958322U (en) |
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2021
- 2021-12-06 CN CN202123033713.2U patent/CN216958322U/en active Active
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