Terminal board
The terminal block restricts nut rotation through a bus bar engagement mechanism, addressing the issue of housing size increase and achieving a more compact design.
JP2025175455APending Publication Date: 2025-12-03YAZAKI CORP
Patent Information
- Application Number
- JP2024081584
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-12-03
AI Technical Summary
Technical Problem
The conventional method of fastening conductive members with a nut and bolt results in the nut rotating with the bolt, necessitating a larger housing size due to the need to restrict nut rotation, which increases the housing thickness.
Method used
A terminal block design featuring a bus bar with a through hole and recess that holds a nut with a protrusion, engaging with the bus bar's receiving hole to restrict the nut's rotation, thereby preventing an increase in housing size.
Benefits of technology
The design effectively restricts nut rotation, reducing the load on the housing and allowing for a more compact terminal block structure by minimizing housing thickness.
✦ Generated by Eureka AI based on patent content.
Smart Images

Figure 2025175455000001_ABST
Abstract
To provide a terminal board for enabling suppression of enlargement of a housing.SOLUTION: A terminal board 1 includes: a busbar 3 having a through hole 31a; a nut 4 having a screw hole 4h; a housing 2 having a holding part for holding the busbar and a recess for holding the nut with the screw hole facing the through hole; and a bolt inserted into the through hole and screwed into the nut accommodated in the recess. The nut has a facing surface facing the busbar and a protrusion 42 protruding toward the busbar from the facing surface, and the busbar has an accommodating hole 33 engaging with the protrusion for restricting rotation of the nut.SELECTED DRAWING: Figure 12
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Citation Information
Patent Citations
Sealing structure
JP2021089881A