Electrical power unit and work machine

Patent metadata

Field	Value
Publication number	US-11837818-B2
Application number	US-202017598901-A
Country	US
Kind code	B2
Filing date	Mar 25, 2020
Priority date	Mar 28, 2019
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

The electrical power unit is provided with: a power unit body; an electrical component for driving the power unit body; and a connecting terminal which is disposed at the tip end of an electrically conductive path member extending from the power unit body and connectable to the electrical component. The connecting terminal is provided detachably to an attaching portion of the power unit body.

First claim

The invention claimed is:

1. An electrical power unit comprising:
a power unit main body;
an electrical component which drives the power unit main body; and
a connection terminal which is provided to a leading end of a conductive path member extending from the power unit main body and capable of connecting to the electrical component,
wherein the connection terminal has a detaching part which is capable of attaching and detaching to a mounting part of the power unit main body,
the electrical power unit further comprises a placement member to which the electrical component is detachably provided,
the placement member has a covering part which is disposed so as to project upwards from a circumference of the electrical component,
the mounting part is a recess groove provided at a side of the covering part close to the electrical component, and
the detaching part is formed in a protruding shape having a locking part to the recess groove.

2. The electrical power unit according to claim 1 , wherein a direction in which the connection terminal is oriented upon the connection terminal being connected to the electrical component, and a direction in which the connection terminal is oriented upon the connection terminal being mounted to the mounting part are identical directions.

3. A work machine comprising an electrical power unit according to claim 1 .

4. The electrical power unit according to claim 1 ,
wherein the detaching part is provided to a side face of the connection terminal disposed in a direction intersecting a projecting direction of a terminal part of the connection terminal upon the connection terminal being connected to the electrical component, or upon the connection terminal being mounted to the mounting part.

5. The electrical power unit according to claim 4 , wherein the upper face of the placement member is a substantially horizontal surface.

6. The electrical power unit according to claim 1 ,
wherein a side farther from the electrical component of the recess groove is blocked.

7. The electrical power unit according to claim 6 , wherein the placement member has a placement member main body to which the covering part is mounted at an upper face,
wherein the recess groove has a lateral opening part opened at a side close to the electrical component, and
wherein the placement member main body has a projecting part which is arranged below a bottom of the recess groove and overlaps the lateral opening part in a plan view, and forms a labyrinth structure by the bottom of the recess groove and the projecting part.

8. The electrical power unit according to claim 1 , wherein the connection terminal has a detaching part which is capable of attaching and detaching to the mounting part, and
wherein the detaching part is provided to span between the connection terminal and the conductive path member.

9. The electrical power unit according to claim 8 , wherein the detaching part is provided continuously to a side face of the connection terminal.

10. The electrical power unit according to claim 8 , wherein the connection terminal is provided to be capable of attaching and detaching to the mounting part by a magnet.

11. The electrical power unit according to claim 8 , further comprising a protective member capable of protecting the connection terminal separated from the electrical component.

12. The electrical power unit according to claim 11 , wherein a part of the connection terminal or a part of the protective member other than a site mounted to the mounting part abuts an outer face of the power unit main body, in a state in which the connection terminal protected by the protective member is mounted to the mounting part.

13. The electrical power unit according to claim 1 , further comprising a protective member capable of protecting the connection terminal separated from the electrical component.

14. The electrical power unit according to claim 13 ,
wherein the protective member is provided to be capable of attaching and detaching to a protective member mounting part of the power unit main body.

15. The electrical power unit according to claim 14 , wherein the protective member has an insertion opening into which the connection terminal is inserted, and is configured to be mountable to the protective member mounting part so that the insertion opening is directed downwards in the direction of gravity.

16. The electrical power unit according to claim 14 , wherein the protective member is provided to be capable of attaching and detaching to the protective member mounting part by a magnet.

17. The electrical power unit according to claim 14 , wherein the protective member has a coupling member which is coupled with the connection terminal.

18. The electrical power unit according to claim 17 , wherein a coupling part of the connection terminal coupled with the coupling member is provided to span between the connection terminal and the conductive path member.

19. The electrical power unit according to claim 18 , wherein the coupling part is provided continuously to a side face of the connection terminal.

20. The electrical power unit according to claim 13 ,
wherein the power unit main body has a common mounting part capable of attaching and detaching the protective member and the connection terminal.

21. The electrical power unit according to claim 20 , wherein the common mounting part is capable of mounting the protective member when the connection terminal is connecting to the electrical component, and is provided to be capable of mounting the connection terminal when the connection terminal is removed from the electrical component.

Assignees

• Honda Motor Co Ltd

Inventors

• Matsunaga Naoki
• Kambara Fumiyoshi
• Oota Yoshitaka
• Muraoka Keisuke

Classifications

• H01R13/5221 Primary

  having cable sealing means · CPC title

• H01R13/5202

  Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings · CPC title

• H01R13/5213

  Covers · CPC title

• H01R13/639

  Additional means for holding or locking coupling parts together, after engagement, {e.g. separate keylock, retainer strap} · CPC title

• H02K11/0094 Primary

  Structural association with other electrical or electronic devices · CPC title