SHOVEL

• US 20140353057A1
• Filed: 08/19/2014
• Published: 12/04/2014
• Est. Priority Date: 02/29/2012
• Status: Active Grant

• Current Assignee: Sumitomo Heavy Industries Limited
• Original Assignee: Sumitomo Heavy Industries Limited
• Inventors: ADACHI, Shuntaro
• Granted Patent: US 9,359,742 B2
• Time in Patent Office: Days
• US Class Current: 180/68.5
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 2200/40 Working vehicles
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 2240/445 Temperature
• CPC Class Codes: B60L 2270/145 Structure borne vibrations
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: E02F 9/0858 Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units E02F9/16, E02F9/18 take precedence
• CPC Class Codes: H01G 11/10 Multiple hybrid or EDL capacitors, e.g. arrays or modules housings, cases, encapsulations or mountings thereof H01G11/78
• CPC Class Codes: H01G 11/82 Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/224 Metals
• CPC Class Codes: H01M 50/249 specially adapted for aircraft or vehicles, e.g. cars or trains constructional details of batteries specially adapted for electric vehicles B60L50/64
• CPC Class Codes: H01M 50/271 Lids or covers for the racks or secondary casings
• CPC Class Codes: H01M 50/291 characterised by their shape
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y10S 903/907 : Electricity storage, e.g. battery, capacitor

Abstract

A shovel including a power storage device; and an electrically driven part driven by discharge electric power from the power storage device. The power storage device includes a lower housing having a bottom panel and side panels; at least two power storage modules arranged at a distance from each other in a first direction on the bottom panel and configured to charge and discharge electrical energy; a first rib formed on the bottom panel of the lower housing, arranged between the two power storage modules, and configured to extend in a second direction intersecting in the first direction; and a second rib formed on the bottom panel of the lower housing, configured to extend in the first direction, and formed continuously with the first rib.

Claims

1. A shovel comprising:

a power storage device; and

an electrically driven part driven by discharged electric power from the power storage device,

wherein the power storage device includes;

a lower housing having a bottom panel and side panels;

at least two power storage modules arranged at a distance from each other in a first direction on the bottom panel and configured to charge and discharge electrical energy;

a first rib formed on the bottom panel of the lower housing, arranged between the two power storage modules, and configured to extend in a second direction intersecting in the first direction; and

a second rib formed on the bottom panel of the lower housing, configured to extend in the first direction, and formed continuously with the first rib.

2. The shovel according to claim 1,

wherein the second rib overlaps each of the power storage modules about the first direction.

3. The shovel according to claim 1, further comprising:

a lid configured to close an upper opening portion of the lower housing,

wherein the first rib and the second rib are lower than the side plates, and gaps are formed between the first rib and the lid and between the second rib and the lid in a state where the opening portion of the lower housing is closed with the lid.

4. The shovel according to claim 1,

wherein the second rib extends in the first direction from the first rib, and reaches the side panels intersecting the first direction.

5. The shovel according to claim 1,

wherein each of the power storage modules includes:

a plurality of plate-shaped power storage cells stacked in a thickness direction; and

a pressurizing mechanism configured to apply a compressive force in a stacking direction to a stacked body of the power storage cells, and

wherein the second rib is arranged between the power storage cells within the power storage module, and the compressive force generated by the pressurizing mechanism is applied to the second rib.

6. The shovel according to claim 5,

wherein the pressurizing mechanism has pressurizing plates arranged at both ends of the stacked body of the power storage cells stacked in the thickness direction,

wherein the power storage cells are connected in series, and

wherein the power storage module further includes:

an insulator fixed to an outside surface of each of the pressurizing plates; and

terminals attached to the insulator and electrically connected to both ends of a series connection circuit of the power storage cells.

7. The shovel according to claim 1, further comprising:

a plurality of side panel ribs formed on inside surfaces of the side panels,

wherein the side panel ribs are in contact with the bottom panel, extend upward from the bottom panel, and are discretely arranged in a circumferential direction.

8. The shovel according to claim 7,

wherein an inwardly-directed surface of each of the side panel ribs includes a region which inclines so that the side panel rib becomes thin upward from the bottom panel.

9. The shovel according to claim 1,

wherein the bottom panel of the lower housing includes a pair of first edges parallel to each other, and

wherein when the thickness of the portions of the side panels formed continuously with the first edges and connected to the bottom panel is represented as Ws, and the spacing between the first edges is represented as Wb, the value of Ws/Wb is equal to or greater than 0.03.

10. The shovel according to claim 9,

wherein inwardly-directed surfaces of the side panels formed continuously with the first edges incline so that the side panels become thin upward from the bottom panel.