Electric work apparatus with an electric load and a rechargeable battery pack

• US 9,289,893 B2
• Filed: 12/24/2012
• Issued: 03/22/2016
• Est. Priority Date: 12/22/2011
• Status: Active Grant

• Current Assignee: Andreas STIHL AG & Company KG (Stihl Holding AG & Company KG)
• Original Assignee: Andreas STIHL AG & Company KG (Stihl Holding AG & Company KG)
• Inventors: Reber, Volker, Kolb, Joachim
• Primary Examiner(s): Nguyen, Danny
• Application Number:
  US13/726,358
• Publication Number:
  US 20130162055A1
• Time in Patent Office: 1,184 Days
• Field of Search: 307/18, 307/150
• US Class Current: 1/1
• CPC Class Codes: B25F 5/00 Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: B60L 53/51 Photovoltaic means
• CPC Class Codes: H01M 50/298 characterised by the wiring of battery packs
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• 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: Y02T 90/12 Electric charging stations

Abstract

An electric work apparatus having an electric load which is fed from a rechargeable battery pack. The battery pack is accommodated in a housing with the electric load being connected to the battery pack via an electric connecting cable. To provide cable guidance for the connecting cable that is ergonomically suitable for a user, cable ducts are molded in a housing wall of the backpack-type battery pack that is separate from the electric load. The cable duct opens in the edge of the housing as cable outlets.

Claims

1. An electric work apparatus comprising:

a battery pack;

a housing configured to accommodate said battery pack therein and having a housing wall and an edge;

an electrical load configured to be fed by said battery pack;

an electrical connecting cable having a predetermined length and being configured to connect said electrical load to said battery pack;

said housing being configured as a backpack-type component which is separate from said electrical load;

said housing having a cable duct formed in said housing wall;

said cable duct having a cable outlet in said edge of said housing; and

,

said electrical connecting cable being guided over a portion of said length thereof in said cable duct.

2. An electric work apparatus comprising:

a battery pack;

a housing configured to accommodate said battery pack therein and having a housing wall and an edge;

an electrical load configured to be fed by said battery pack;

an electrical connecting cable configured to connect said electrical load to said battery pack;

said housing being configured as a backpack-type component which is separate from said electrical load;

said housing having a cable duct formed in said housing wall;

said cable duct having a cable outlet in said edge of said housing;

said cable duct having at least two of said cable outlets in said edge of said housing;

said edge of said housing defining a peripheral direction; and

,

said cable outlets being disposed at a distance to each other measured in said peripheral direction.

3. The work apparatus of claim 2, wherein said cable duct is configured as a channel.

10. The work apparatus of claim 2, wherein:

said edge of said housing defines a narrow side thereof; and

,

a plurality of said cable outlets are disposed in said narrow side of said housing.

11. The work apparatus of claim 10, wherein:

said housing has an upwardly extending side; and

,

a plurality of said cable outlets are disposed in said upwardly extending side of said housing.

19. The work apparatus of claim 11, wherein:

said upwardly extending side is a lateral upwardly extending side of said housing;

said back plate defines an imaginary center plane; and

,

each of said cable outlets disposed in said edge of said housing in said lateral upwardly extending side is disposed below said imaginary center plane.

22. The work apparatus of claim 2, wherein said cable duct has duct walls on which clamping struts are formed.

24. The work apparatus of claim 2, wherein said housing has a base configured as a stand.

4. An electric work apparatus comprising:

a battery pack;

a housing configured to accommodate said battery pack therein and haying a housing wall and an edge;

an electrical load configured to be fed by said battery pack;

an electrical connecting cable configured to connect said electrical load to said battery pack;

said housing being configured as a backpack-type component which is separate from said electrical load;

said housing haying a cable duct formed in said housing wall;

said cable duct having a cable outlet in said edge of said housing;

said battery pack including a cell pack arranged in said housing;

said housing wall including a back plate;

said housing wall defining an outer surface;

said back plate and said cell pack conjointly defining an installation space therebetween; and

,

said cable duct being accommodated in said installation space and being open toward said outer surface of said housing wall.

5. The work apparatus of claim 4, wherein said cable duct is disposed in said back plate.

6. The work apparatus of claim 4, wherein:

said back plate defines a portion of said outer surface;

said portion of said outer surface of said back plate and said cell pack conjointly define said installation space therebetween; and

,

said cable duct is arranged in said installation space and is open to said portion of said outer surface.

7. The work apparatus of claim 4, wherein said installation space is an empty space.

8. The work apparatus of claim 5, further comprising an electrical terminal box arranged in said back plate in a recessed manner.

9. The work apparatus of claim 8, wherein said cable duct runs in a recessed manner in said back plate from said terminal box to said cable outlet.

12. The work apparatus of claim 5, wherein:

said cable duct has a plurality of said cable outlets;

said back plate has a vertical longitudinal center axis defining a first section on one side of said vertical longitudinal center axis and a second section on the other side of said vertical longitudinal center axis; and

,

at least one of said cable outlets is disposed in said edge of said housing in said first section and at least one of said cable outlets is disposed in said edge of said housing in said second section.

20. The work apparatus of claim 8, wherein:

said housing has a base and said edge includes an upper narrow side disposed opposite said base;

said back plate has an upper end region; and

,

said electrical terminal box is arranged in said upper end region of said back plate below said upper narrow side.

21. The work apparatus of claim 20, wherein respective cable outlets are formed in said upper narrow side on each end of said electrical terminal box.

25. The work apparatus of claim 4, wherein said housing has a base configured as a stand.

13. An electric work apparatus comprising:

a battery pack;

a housing configured to accommodate said battery pack therein and having a housing wall and an edge;

an electrical load configured to be fed by said battery pack;

an electrical connecting cable configured to connect said electrical load to said battery pack;

said housing being configured as a backpack-type component which is separate from said electrical load;

said housing having a cable duct formed in said housing wall;

said cable duct having a cable outlet in said edge of said housing;

said housing having a vertical side;

said cable duct having end sections which open into said cable outlet; and

,

said end sections defining an outlet angle to said vertical side which is unequal to 90°

.

14. The work apparatus of claim 13, wherein:

said housing has a base;

said outlet angle is less than 90° and

has an angle opening which faces said base.

15. The work apparatus of claim 14, wherein said outlet angle is approximately 45°

.

26. The work apparatus of claim 13, wherein said housing has a base configured as a stand.

16. An electric work apparatus comprising:

a battery pack;

a housing configured to accommodate said battery pack therein and having a housing wall and an edge;

an electrical load configured to be fed by said battery pack;

an electrical connecting cable configured to connect said electrical load to said battery pack;

said housing being configured as a backpack-type component which is separate from said electrical load;

said housing having a cable duct formed in said housing wall;

said cable duct having a cable outlet in said edge of said housing;

said edge of said housing defining a narrow side; and

,

said cable duct being bifurcated so as to cause said cable duct to branch off to a further cable outlet.

17. The work apparatus of claim 16, wherein:

said cable duct has an end section for each of said cable outlets and each of said end sections opens into the respective one of said cable outlets; and

,

said end sections of said cable duct are approximately parallel to each other.

18. The work apparatus of claim 16, wherein:

said housing wall includes a back plate defining a vertical longitudinal center axis; and

,

each of said cable outlets on the same side of said longitudinal center axis are connected to a common cable duct.

27. The work apparatus of claim 16, wherein said housing has a base configured as a stand.

23. An electric work apparatus comprising:

a battery pack;

a housing configured to accommodate said battery pack therein and having a housing wall and an edge;

an electrical load configured to be fed by said battery pack;

an electrical connecting cable configured to connect said electrical load to said battery pack;

said housing being configured as a backpack-type component which is separate from said electrical load;

said housing having a cable duct formed in said housing wall;

said cable duct having a cable outlet in said edge of said housing;

said cable duct having duct walls on which clamping struts are formed;

said cable duct having a first duct wall and a second duct wall; and

,

said struts on said first duct wall being offset from said struts on said second duct wall.