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Load cell for a scale

A load sensor and circuit board technology, applied in instruments, weighing equipment using elastically deformable parts, detailed information of weighing equipment, etc., can solve the problem of load sensor circuit board not being a material height limit

Active Publication Date: 2018-09-14
BIZERBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The minimum build height of the load cell is therefore limited by the fact that the circuit board is usually not of substantial height

Method used

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  • Load cell for a scale
  • Load cell for a scale
  • Load cell for a scale

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] load cell 11 in figure 1 A balance for calibration is shown in , which comprises a measuring body 13 integrally formed as a block and having a force receiving part 15 and a force introducing part 17 . The force receiver 15 can be fastened via four fastening holes 19 to the fixed part of the scale and the load rail carrying the load plate can be fastened (not shown) to the force introduction via two fastening holes 21 . A joint 23 is provided between the two parts 15 , 17 such that the measuring body 13 acts as a bending rod or beam. To this end, a central channel 25 is formed in the junction 23 ; it is in particular dog-bone-shaped in cross-section and passes completely through the measuring body 13 . The measuring body 13 generally has a longitudinal axis L, an end 29 on the force-receiving side and an end 31 on the force-introducing side. A groove 41 extending perpendicularly to the longitudinal axis L is provided on the upper side of the measuring body 13 between t...

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PUM

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Abstract

The invention relates to a load cell for a scale. The load cell comprises a monolithically configured measurement body that has a force reception section, a force introduction section, and a joint section arranged between the force reception section and the force introduction section, wherein the measurement body has a longitudinal axis and an axial end at the force reception side and an axial endat the force introduction side; at least one strain gauge arranged at the upper side on the joint section for detecting a stretching deformation of the measurement body; and a circuit board that is electrically connected to the at least one strain gauge, that is arranged at the force reception side, and that has electronics (in particular a analog-digital converter) arranged thereon for processing at least one output signal of the at least one strain gauge. The force reception part is provided with a groove in the upper side, the groove faces the tail end opening of the measurement body fromthe force reception side, and the circuit board is inserted into the groove horizontally.

Description

technical field [0001] The invention relates to a load cell for a scale. Background technique [0002] It is known from the prior art to use such load cells to attach a circuit board edgewise and laterally to a force receiver of a measuring body. In this respect, the height of the measuring body must at least correspond to the width of the edge-attached circuit board in order to avoid upward and / or downward protrusions of the circuit board on the measuring body. The minimum construction height of the load cell is thus limited by the fact that the circuit board is usually not of substantial height. Contents of the invention [0003] The basic object of the invention is to provide a load cell of the initially mentioned kind which enables a small construction height. [0004] This object is met by a load cell having the features of the embodiments, and in particular in that the force receiving part has a groove, in particular a groove delimited on three sides, at the upper ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G3/14G01G21/00
CPCG01G3/1402G01G21/00G01G21/244G01G3/1404G01G3/141G01L1/04G01L1/2231G01L1/225
Inventor 安尼卡·施赖伯弗朗克·梅茨格
Owner BIZERBA
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