U.S. patent application number 11/023581 was filed with the patent office on 2006-06-29 for scroll-type compressor assembly means.
This patent application is currently assigned to Rechi Precision Co., Ltd.. Invention is credited to Lung-Tsai Chang, Chung-Pen Chiu, Bien - De Shen.
Application Number | 20060140807 11/023581 |
Document ID | / |
Family ID | 36611760 |
Filed Date | 2006-06-29 |
United States Patent
Application |
20060140807 |
Kind Code |
A1 |
Chang; Lung-Tsai ; et
al. |
June 29, 2006 |
SCROLL-TYPE COMPRESSOR ASSEMBLY MEANS
Abstract
A scroll-type compressor assembly means has one or multiple
positioning holes provided on a positioning post of the frame, and
a positioning element to fix a retaining spacer to the frame for
the retaining spacer to limit the stationary scroll and to define
an ideal spacing between the positioning post and the stationary
scroll; the ideal spacing not affected by the locking location of
the positioning element to the positioning post that is far away
from the ideal spacing or the stationery scroll for assurance of
assembly quality of the compressor and prevention of operation
noise or frustrated operation due to unpredictable change or
narrowed ideal spacing between the positioning post and stationary
scroll because that the positioning post is deformed.
Inventors: |
Chang; Lung-Tsai; (Taoyuan
Hsien, TW) ; Chiu; Chung-Pen; (Taoyuan Hsien, TW)
; Shen; Bien - De; (Taoyuan Hsien, TW) |
Correspondence
Address: |
TROXELL LAW OFFICE PLLC
SUITE 1404
5205 LEESBURG PIKE
FALLS CHURCH
VA
22041
US
|
Assignee: |
Rechi Precision Co., Ltd.
|
Family ID: |
36611760 |
Appl. No.: |
11/023581 |
Filed: |
December 29, 2004 |
Current U.S.
Class: |
418/55.5 ;
418/55.1 |
Current CPC
Class: |
F04C 18/0215 20130101;
F04C 23/008 20130101; F04C 2230/60 20130101 |
Class at
Publication: |
418/055.5 ;
418/055.1 |
International
Class: |
F04C 2/00 20060101
F04C002/00; F01C 1/02 20060101 F01C001/02; F04C 18/00 20060101
F04C018/00; F01C 1/063 20060101 F01C001/063 |
Claims
1-4. (canceled)
5. An assembly device for a scroll-type compressor comprising: a) a
frame having: i) a bottom protrusion extending downwardly from a
bottom thereof; and ii) at least one positioning post extending
upwardly from a top thereof, each of the at least one positioning
post having at least one positioning hole extending through the at
least one positioning post and having a bottom portion extending
into the bottom protrusion, the at least one positioning hole
having a locking device located in the bottom protrusion; b) a
retaining element securing a stationary scroll of the scroll-type
compressor in a predetermined position; and c) a positioning
element inserted through the retaining element and into each of the
at least one positioning hole, the positioning element having a
first end locking the retaining element to the frame and a second
end connected to the locking device of one of the at least one
positioning hole, wherein, in the predetermined position, the
stationary scroll is spaced apart from each of the at least one
positioning post.
6. The assembly device according to claim 5, wherein the locking
portion of the at least one positioning hole is an internal thread
connected to an external thre ad of the positioning element.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] The present invention is related to a fixation means, and
more particularly to one that is provided between stationary scroll
and frame within a scroll-type compressor to eliminate operating
noise or frustrated operation due to unpredictable change or
narrowed ideal spacing between the positioning post and stationary
scroll because that the positioning post is deformed.
[0003] (b) Description of the Prior Art
[0004] Referring to FIG. 1 for a fixation means for the stationary
scroll in a scroll-type compressor generally available in the
market, interior of the housing of the compressor is segregated by
means of a separation block 30 into a low-pressure chamber and a
high-pressure chamber; and a stationary scroll 10 and an orbiting
scroll 20 are disposed at where below the separation block 30 on
the lower-pressure chamber side. Wherein, the stationary scroll is
placed on a frame 40 and its orbiting scroll 20 as driven by the
spindle (not illustrated) of the compressor revolves around the
stationary scroll without revolving on its own axis thus to change
the volume between the stationary scroll and the orbiting scroll 20
to change the volume of the coolant. Accordingly, heat exchange by
the coolant in the circulation pipeline is achieved by the suction
and compression the coolant entering into the low-pressure
chamber.
[0005] In addition to holding the stationary scroll 10 in position,
the frame 40 supports and couples the orbiting scroll 20, the
spindle and other related components. As illustrated in FIG. 2, the
assembly required for supporting other components (including the
orbiting scroll) on the frame 40 must be completed before securing
the stationary scroll 10 on top of the frame 40. Therefore, the
assembly means between the stationary scroll 10 and the frame 40 is
provided by having one or more screwed holes 51 disposed on the
positioning post 41 of the frame 40 and having a retaining spacer
70 locked to the frame 40 with a bolt 60 to define an ideal spacing
A between the positioning post 41 of the frame 40 and the
stationary scroll 10. The retaining spacer 70 confines and thus
limits the stationary scroll 10 in position.
[0006] Since the frame 40 and the retaining spacer 70 is coupled by
means of the bolt 60 and the screwed hole 51, a comparatively
strong force must be applied to lock the bolt 60 into the screwed
hole 51 at the expense of the assembly precision of other
components. In worse case, the positioning post 41 is vulnerable to
be deformed when subject to the compression from the bolt 60 and
the screwed hole 51 as illustrated in FIG. 2 to further narrow down
the ideal space A between the stationary scroll 10 and the
positioning post 41 to result in abnormal operation noise or
prevention of a smooth operation of the scroll-type compressor.
SUMMARY OF THE INVENTION
[0007] The primary purpose of the present invention is to provide a
means for the assembly of a scroll-type compressor for assurance of
the assembly quality of the compressor and eliminating abnormal
operation noise or prevention of smooth operation due to the
deformed positioning post narrows down or changes the ideal spacing
between the positioning post and the stationary scroll.
[0008] To achieve the purpose, one or multiple positioning holes is
provided to the positioning post of the frame and a positioning
element lock a retaining spacer to the frame to contain and thus
limit the stationary scroll and to define an ideal spacing between
the positioning post of the frame and the stationary scroll.
Accordingly, the ideal spacing will not be affected once the rod of
the positioning element is inserted into the positioning hole to
lock up the positioning post to secure the retaining spacer to the
frame.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a schematic view showing a fixation means for a
stationary scroll in a scroll-type compressor of the prior art.
[0010] FIG. 2 is a sectional view of a deformed construction
between the stationary scroll and a frame of the prior art.
[0011] FIG. 3 is a schematic view showing a fixation means for a
stationary scroll in a scroll-type compressor of the present
invention.
[0012] FIG. 4 is a sectional view of a deformed construction
between the stationary scroll and a frame of the present
invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] Similar to the prior art, inside the housing of the
compressor in the present invention is also segregated into a
low-pressure chamber and a high-pressure chamber by means of a
separation block, and a stationary scroll and an orbiting scroll
are disposed below the separation block in the low-pressure
chamber. Wherein, the stationary scroll is placed on a frame while
the orbiting scroll as driven by a spindle of the compressor
revolves on the axis of the stationary scroll, instead of its own
axis to change the volume of a coolant by changing the volume
between the stationary scroll and the orbiting scroll. Accordingly,
the coolant is sucked and compressed upon entering into the
low-pressure chamber for the coolant circulation pipeline to
execute heat exchange.
[0014] Referring to FIG. 3 for a construction of the stationary
scroll and the frame, one or multiple positioning holes 52 is
disposed on a positioning post 41 of the frame 40. A positioning
element 80 locks a retaining spacer 70 to the frame 40 for the
retaining spacer 70 to contain and limit the stationary scroll 10
in position, and to define an ideal spacing A between the
positioning post 41 of the frame 40 and the stationary scroll
10.
[0015] As illustrated in FIG. 40, a rod 81 of the positioning
element 80 extends into the positioning hole 52, and the bottom of
the rod 81 is provided with a thread 811 to engage with another
thread 521 disposed at the bottom of the positioning hole 52 so to
secure the retaining spacer 70 to the frame 40.
[0016] Wherein, the location where the positioning element 80 to
the frame 40 is far away from the stationary scroll 10, or the
scope of the ideal spacing A between the stationary scroll 10 and
the positioning post 41 for the interlocking between the
positioning element 80 and the positioning hole 52 for maintaining
the assembly quality of the compressor and effectively eliminating
the defects of abnormal operation noise or prevention of a smooth
operation due to narrowed or unpredictable change to the ideal
spacing between the positioning post and the stationary scroll
caused by deformed positioning post 41.
[0017] The prevent invention provides an improved means for the
assembly of a scroll-type compressor for assurance of assembly
quality of the stationary scroll, and the application for a utility
patent is duly filed accordingly. However, it is to be noted that
that the preferred embodiments disclosed in the specification and
the accompanying drawings are not limiting the present invention;
and that any construction, installation, or characteristics that is
same or similar to that of the present invention should fall within
the scope of the purposes and claims of the present invention.
* * * * *