Distribution switchboard

A technology of distribution boards and bottom boards, which is applied to electrical components, substations/switchgear boards/panels/desks, substations/switch layout details, etc., which can solve the problems of the branch itself becoming larger and unable to save space, etc. Achieve space-saving effect

Inactive Publication Date: 2009-12-16
MATSUSHITA ELECTRIC WORKS LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] On the other hand, on the branch bar, the hole through which the bolt is connected is a long hole, which can move in the longitudinal direction. In such a structure, the branch bar itself becomes larger, and space saving cannot be achieved.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Distribution switchboard
  • Distribution switchboard
  • Distribution switchboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] according to Figure 1 to Figure 12 A first embodiment of the present invention will be described. This distribution board is installed in, for example, a three-phase four-wire type wiring line in which a load is connected between the voltage poles U, V, W and the neutral pole N. The distribution board is provided with a first internal device block 2 and a second internal device block 3 in the box 1 .

[0049] The box 1 is a box having an opening on one surface of side plates 7 to 10 erected from the bottom plate 6 and its peripheries.

[0050] In the first internal device block 2 , the input and output terminals 4 and 5 are set in the direction of the upper and lower side plates 7 and 8 of the box body 1 , and a plurality of branch circuit breakers 20 are arranged on the left and right side plates 9 and 10 of the box body 1 . direction, and arrange them side by side on the substrate 11. The base plate 11 is attached by bolts 21 to a connecting piece provided on the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A power distribution board is provided. The internal device block (2) has a plurality of branch circuit breakers (20) inside the box body (1). The plurality of branch bars (23-26) have branch connection parts (32) and bolt insertion holes arranged along the input terminal (4) side of the internal device block (2). The trunk bars (27-30) have long holes (43) extending in the length direction of the branch bars (23-26). The connecting bolts (49) are inserted through the bolt insertion holes of the branch bars and the long holes (43) of the trunk bars. The nut eccentrically engages the threaded portion threadedly engaged with the front end of the connecting bolt (49) from the center in the length direction of the branch bar. The insulating part (52) has a receiving recess for reversibly receiving the nut (56). In this way, regardless of whether a single-pole type branch circuit breaker or a double-pole type branch circuit breaker is installed, it is not necessary to replace the branch bar, and it can be easily dealt with.

Description

technical field [0001] The present invention relates to a distribution board in which, for example, a main circuit breaker and a plurality of branch circuit breakers are arranged in parallel. Background technique [0002] Generally, as shown in Patent Document 1, a switchboard used in a single-phase three-wire type wiring line has three branch bars, the center branch bar is used as a neutral pole, and the two branch bars on both sides are used as a neutral pole. For the voltage poles, each branch circuit breaker is horizontally arranged on both sides of these three branch bars. [0003] In this switchboard, each branch circuit breaker is a bipolar type, and a branch bar of a neutral pole is connected to one input terminal through a branch connection portion, and a branch bar of one voltage pole is connected to the other input terminal of the branch connection portion. . [0004] Here, when the branch circuit breaker is a single-pole type, there is only one input terminal i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/40H02B1/04
Inventor 矢野刚进广和
Owner MATSUSHITA ELECTRIC WORKS LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap