Electric device body and electric device

Patent metadata

Field	Value
Publication number	US-9774017-B2
Application number	US-201414760603-A
Country	US
Kind code	B2
Filing date	Jan 14, 2014
Priority date	Feb 13, 2013
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

An electric device body in which a battery pack including a plurality of battery cells and a plurality of first terminals is detachably mounted includes: a housing; a guide mechanism; and a plurality of second terminals; and a pressed portion. The battery pack is configured to be attached to and detached from the housing along a first direction. The guide mechanism is provided at the housing and configured to define the first direction. The plurality of second terminals is configured to be connected to the plurality of first terminals upon attachment of the battery pack to the housing. The pressed portion is configured to be pressed against the battery pack in a second direction intersecting the first direction when the battery pack has been attached to the housing.

First claim

The invention claimed is:

1. An electric device body in which a battery pack is detachably mounted, the battery pack including a plurality of battery cells and a plurality of first terminals, the electric device body comprising:
a housing, the battery pack being configured to be attached to and detached from the housing along a first direction;
a guide mechanism provided at the housing and configured to define the first direction;
a plurality of second terminals configured to be connected to the plurality of first terminals upon attachment of the battery pack to the housing; and
a pressed portion configured to be elastically deformed and pressed against the battery pack in a second direction intersecting the first direction when the battery pack has been attached to the housing.

2. The electric device body as claimed in claim 1 , further comprising:
a terminal holder to which the plurality of second terminals is fixed; and
a fixing member configured to fix the terminal holder to the housing, and
wherein the pressed portion is provided at the fixing member.

3. The electric device body as claimed in claim 1 , wherein the pressed portion is provided at the housing and disposed at a position confronting the battery pack when the battery pack has been attached to the housing.

4. The electric device body as claimed in claim 1 , further comprising:
a terminal holder to which the plurality of second terminals is fixed; and
a fixing member configured to fix the terminal holder to the housing, and
wherein the pressed portion comprises: a first pressed portion provided at the fixing member; and a second pressed portion provided at the housing and disposed at a position confronting the battery pack.

5. The electric device body as claimed in claim 1 , wherein the housing has a first portion and a second portion along the first direction, the first portion being disposed at a position where the battery pack approaches prior to approaching the second position when the battery pack is attached to the housing, and
wherein the pressed portion is disposed at a position closer to the second portion than to the first portion.

6. The electric device body as claimed in claim 1 , wherein the pressed portion comprises a plurality of pressed portions disposed at positions different from each other along the first direction.

7. An electric device comprising:
a battery pack comprising: a plurality of battery cells; and a plurality of first terminals; and
an electric device body in which the battery pack is detachably mounted, the electric device body comprising:
a housing, the battery pack being configured to be attached to and detached from the housing along a first direction;
a guide mechanism provided at the housing and configured to define the first direction;
a plurality of second terminals configured to be connected to the plurality of first terminals upon attachment of the battery pack to the housing;
a terminal holder to which the plurality of second terminals is fixed;
a fixing member located at a position between the terminal holder and the housing; and
a first pressed portion provided at the fixing member, the first pressed portion being configured to be pressed against the battery pack in a second direction intersecting the first direction when the battery pack has been attached to the housing.

8. The electric device as claimed in claim 7 , wherein
the fixing member is configured to fix the terminal holder to the housing.

9. The electric device as claimed in claim 7 , further comprising a second pressed portion provided at the housing and configured to be pressed against the battery pack in a second direction intersecting the first direction when the battery pack has been attached to the housing, housing, the second pressed portion being disposed at a position confronting the battery pack when the battery pack has been attached to the housing.

10. The electric device as claimed in claim 7 , wherein the housing has a first portion and a second portion along the first direction, the first portion being disposed at a position where the battery pack approaches prior to approaching the second position when the battery pack is attached to the housing, and
wherein the first pressed portion is disposed at a position closer to the second portion than to the first portion.

11. The electric device as claimed in claim 7 , wherein the first pressed portion comprises a plurality of first pressed portions disposed at positions different from each other along the first direction.

12. The electric device as claimed in claim 7 , wherein the first pressed portion is configured to be elastically deformed.

13. The electric device as claimed in claim 9 , wherein the second pressed portion is configured to be elastically deformed.

14. The electric device body as claimed in claim 1 , wherein the housing further comprises a mount part, the mount part and the battery pack being arrayed in an array direction when the battery pack has been attached to the housing,
wherein the pressed portion comprises a first pressed portion and a second pressed portion, and
wherein the first pressed portion is provided at a position different from the second pressed portion in the array direction.

15. The electric device body as claimed in claim 14 , wherein the first pressed portion is provided at a position different from the second pressed portion in the first direction.

16. The electric device body as claimed in claim 15 , wherein the first pressed portion and the second pressed portion are integrally formed.

17. The electric device body as claimed in claim 16 , wherein the guide mechanism includes a guide rail extending in the first direction, and
wherein the guide rail is disposed at a position between the first pressed portion and the second pressed portion in the array direction.

18. The electric device as claimed in claim 16 , wherein the first pressed portion comprises two first pressed portions, the plurality of second terminals being disposed between the two first pressed portions in a direction perpendicular to both of the first direction and the second direction.

19. The electric device as claimed in claim 7 , wherein the fixing member is formed of an elastic material and surrounds the terminal holder to seal a gap between the housing and the terminal holder.

Assignees

• Hitachi Koki Kk

Inventors

• Uchida Hiroki
• Nakano Yoshihiro
• Komuro Yoshihiro
• Harada Tetsuhiro
• Tanimoto Hideyuki

Classifications

• B25F5/00 Primary

  Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• H01M2/1055 Primary

  Electricity · mapped topic

• H01M50/213 Primary

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title