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SamsungGranted patentChips & hardwareInterest 3/10

Samsung patents compressor design that simplifies motor assembly

This patent describes a specific layout for a reciprocating compressor, a machine that moves back and forth to compress gas. It uses a fixed central shaft and a rotating inner shaft to hold the motor parts in place, with a special ring-shaped holder that clamps the stator securely to the base.

Why it mattersThis is a routine mechanical engineering improvement that likely makes the compressor easier to manufacture or more stable, but it does not introduce a new consumer feature.

In the filing’s own words

A reciprocating compressor is provided. The reciprocating compressor includes a bearing block, a fixed shaft extending vertically from a lower surface of the bearing block, formed in a cylindrical shape, and having a shaft hole formed therein, a stator disposed on the bearing block and including a coupling hole into which the fixed shaft is inserted, a holder disposed on an outer circumferential surface of the fixed shaft and configured to fix the stator to the bearing block, a rotating shaft inserted into the shaft hole of the fixed shaft, and a rotor disposed outside the stator and fixed to one end of the rotating shaft. The outer circumferential surface of the fixed shaft and the shaft hole may be formed concentrically.

What exactly they claim (claim 1)

1. A reciprocating compressor, comprising: a bearing block; a fixed shaft extending vertically from a lower surface of the bearing block, formed in a cylindrical shape, and having a shaft hole formed therein; a stator disposed on the bearing block and including a coupling hole into which the fixed shaft is inserted; a holder disposed on an outer circumferential surface of the fixed shaft and configured to fix the stator to the bearing block; a rotating shaft inserted into the shaft hole of the fixed shaft; and a rotor disposed outside the stator and fixed to one end of the rotating shaft, wherein the outer circumferential surface of the fixed shaft and the shaft hole are formed concentrically, wherein the holder includes a fastener, wherein the fastener comprises: a ring portion having an inner diameter larger than a diameter of the fixed shaft, and a plurality of pressing portions protruding from an inner circumferential surface of the ring portion toward a center thereof, wherein the plurality of pressing portions are formed to be inclined with respect to the ring portion, and wherein an inner diameter of the plurality of pressing portions is smaller than the diameter of the fixed shaft.

Facts

Company
Samsung (Samsung Electronics Co., Ltd.)
Official title
Reciprocating compressor using outer rotor motor
Patent number
US12736039B2
Application number
18750168
Filed
Jun 21, 2024
Granted
Sep 15, 2026
Inventors
5
Claims
14

Classified under

F04B 35/04 Mechanical engineeringF04B 39/14 Mechanical engineeringF25B 31/026 Mechanical engineeringF25B 31/023 Mechanical engineering
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.