U.S. patent application number 12/833691 was filed with the patent office on 2011-01-13 for hermetic type compressor.
This patent application is currently assigned to SAMSUNG GWANGJU ELECTRONICS CO., LTD.. Invention is credited to Jong Woon PARK.
Application Number | 20110008193 12/833691 |
Document ID | / |
Family ID | 42732224 |
Filed Date | 2011-01-13 |
United States Patent
Application |
20110008193 |
Kind Code |
A1 |
PARK; Jong Woon |
January 13, 2011 |
HERMETIC TYPE COMPRESSOR
Abstract
A hermetic type compressor which enables an electric component
bracket for connection an electric component cover to be detachably
connected to the outer surface of a hermetic container through
bracket fixing members is provided. The hermetic type compressor
includes connection terminals passing through the hermetic
container, an electric component cover, and an electric component
bracket installed on the outer surface of the hermetic container
around the connection terminals so as to be fastened to the
electric component cover. Bracket fixing members provided with
first fastening units are provided on the outer surface of the
hermetic container around the connection terminals so as to
detachably connect the electric component bracket to the outer
surface of the hermetic container, and second fastening units to
which the first fastening units are detachably connected are
provided on the electric component bracket.
Inventors: |
PARK; Jong Woon; (Gwangju,
KR) |
Correspondence
Address: |
North Star Intellectual Property Law, PC
P.O. Box 34688
Washington
DC
20043
US
|
Assignee: |
SAMSUNG GWANGJU ELECTRONICS CO.,
LTD.
Gwangju-city
KR
|
Family ID: |
42732224 |
Appl. No.: |
12/833691 |
Filed: |
July 9, 2010 |
Current U.S.
Class: |
417/417 ;
417/423.14 |
Current CPC
Class: |
F04C 2240/30 20130101;
F04B 39/121 20130101; F04C 2240/803 20130101; F04C 23/008
20130101 |
Class at
Publication: |
417/417 ;
417/423.14 |
International
Class: |
F04B 35/04 20060101
F04B035/04; F04B 39/12 20060101 F04B039/12 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 13, 2009 |
KR |
10-2009-0063414 |
Claims
1. A hermetic type compressor comprising: a hermetic container
comprising: a compression unit configured to perform compression of
a refrigerant; and a drive unit configured to provide driving force
to compress the refrigerant; connection terminals passing through
the hermetic container, the connection terminals configured to be
connected to electric components relating to driving the drive
unit; an electric component cover configured to protect the
electric components connected to the connection terminals, the
electric component cover located at the outside of the hermetic
container; and an electric component bracket installed on the outer
surface of the hermetic container around the connection terminals,
the electric component bracket configured to be fastened to the
electric component cover, wherein bracket fixing members provided
with first fastening units are provided on the outer surface of the
hermetic container around the connection terminals, the bracket
fixing members configured to detachably connect the electric
component bracket to the outer surface of the hermetic container,
and wherein second fastening units to which the first fastening
units are detachably connected are provided on the electric
component bracket.
2. The hermetic type compressor according to claim 1, wherein third
fastening units are provided on the electric component bracket, and
fourth fastening units to which the third fastening units are
detachably connected are provided on the electric component
cover.
3. The hermetic type compressor according to claim 1, wherein the
bracket fixing members comprise a plurality of bracket fixing
members.
4. The hermetic type compressor according to claim 3, wherein three
bracket fixing members are disposed in a triangular shape.
5. The hermetic type compressor according to claim 1, wherein the
bracket fixing members are welded to the outer surface of the
hermetic container.
6. The hermetic type compressor according to claim 1, wherein: each
first fastening unit comprises: a protrusion part protruded
outwardly from the outer surface of the hermetic container; and a
hanging part comprising a cross-sectional area greater than that of
the protrusion part and provided at the end of the protrusion part;
and each second fastening unit comprises: a hanging part pass hole
configured to pass the hanging part; and a protrusion part fitting
hole formed at the top of the hanging part pass hole, the
protrusion part fitting hole configured to be communicated with the
hanging part pass hole and comprising a width corresponding to a
width of the protrusion part such that the protrusion part is
fitted into the protrusion part fitting hole.
7. The hermetic type compressor according to claim 1, wherein: the
bracket fixing members comprise a plurality of bracket fixing
members provided around the connection terminals and configured to
be separated from each other by a designated interval in the
circumferential direction; and the second fastening units comprise
a plurality of second fastening units configured to be fastened to
the first fastening units in response to the electric component
bracket being rotated under a condition that the second fastening
units enter an area between the bracket fixing members.
8. The hermetic type compressor according to claim 7, wherein: one
of each first fastening unit and each second fastening unit
comprises an arc-shaped fitting groove; and the other one of each
first fastening unit and each second fastening unit comprises a
fitting part fitted into the fitting groove while sliding in the
circumferential direction.
9. The hermetic type compressor according to claim 8, wherein the
fitting part is configured to be fitted into the fitting groove in
an interference fit manner.
10. A hermetic container for a hermetic type compressor, the
hermetic container comprising: an electric component bracket
releasably attached to the outer surface of an hermetic container,
the electric component bracket comprising second fastening units;
and bracket fixing members provided on the outer surface of the
hermetic container, the bracket fixing members comprising first
fixing units, the first fixing units and second fixing configured
to be releasably connected to one another to releasably attach the
electric component bracket to the outer surface of the hermetic
container.
11. The hermetic container according to claim 10, further
comprising connection terminals passing through the hermetic
container, the connection terminals configured to be connected to
electric components.
12. The hermetic container according to claim 11, wherein the
electric component bracket and the bracket fixing members are
positioned about the connection terminals.
13. The hermetic container according to claim 10, wherein the
electric component bracket comprises a third fastening unit, the
third fastening unit configured to releasably attach to a electric
component cover configured to protect electric components connected
to the connection terminals at the outside of the hermetic
container.
14. The hermetic container according claim 10, wherein: the second
fastening unit comprises at least one opening in the electric
component bracket; and at least one bracket fixing member extends
from the hermetic container to be received in the opening of a
corresponding second fasting unit, releasably attaching the
electric component bracket to the hermetic container.
Description
CROSS-REFERENCE TO RELATED APPLICATION(S)
[0001] This application claims the benefit under 35 U.S.C.
.sctn.119(a) of Korean Patent Application No. 10-2009-0063414,
filed on Jul. 13, 2009, in the Korean Intellectual Property Office,
the entire disclosure of which is incorporated herein by reference
for all purposes.
BACKGROUND
[0002] 1. Field
[0003] The following description relates to a hermetic type
compressor, and in particular, to a hermetic type compressor in
which an electric component bracket installed on an outer surface
of a hermetic container to be connected to an electric component
cover may be easily changed in design and replaced with a new
electric component bracket.
[0004] 2. Description of the Related Art
[0005] In general, a hermetic type compressor employed by a cooling
apparatus of an air conditioner or a refrigerator to compress a
refrigerant includes a compression unit and a drive unit provided
in a hermetic container. The compression unit performs compression
of the refrigerant, and the drive unit provides driving force to
compress the refrigerant.
[0006] The drive unit generally may include a motor, and connection
terminals may be installed on the hermetic container so as to apply
power to the drive unit.
[0007] One end of each connection terminal may be exposed to the
outside of the hermetic container, and the other end of each
connection terminal may be connected to the driving unit within the
hermetic container. Electric components relating to drive of the
drive unit, such as an overload protector and a relay, may be
connected to the ends of the connection terminals exposed to the
outside of the hermetic container.
[0008] Such electric components may be protected by an electric
component cover, and an electric component bracket to be connected
to the electric component cover may be provided on the outer
surface of the hermetic container around the connection
terminals.
[0009] In a conventional hermetic type container, the electric
component bracket is made of a thin metal sheet and is fixed to the
outer surface of the hermetic container by welding. A hole to
expose the connection terminals is formed through the center of the
electric component bracket, and fastening structures to be fastened
to the electric component cover are provided at the edge of the
electric component bracket.
[0010] Therefore, the electric components are connected to the
connection terminals under the condition that the electric
component bracket is welded onto the outer surface of the hermetic
container. Under this state, the electric component cover is
connected to the electric component bracket so as to cover the
electric components.
[0011] However, in the conventional hermetic type container, in
which the electric component bracket is fixed to the outer surface
of the hermetic container by welding, the electric component
bracket may be difficult to replace, thereby causing an
inconvenience.
[0012] In the conventional hermetic type container, if the electric
component bracket is partially damaged or is defective, replacement
of only the electric component bracket is difficult, and thus it
may be necessary to replace the overall hermetic container
including the electric component bracket with a new one.
[0013] Further, the number of the electric components may be
changed or the electric components may be changed into other kinds
according to the specifications of the hermetic type compressor.
When the number or kinds of the electric components are changed, a
type of the electric component cover to cover the changed electric
components needs to be changed and the electric component bracket
also needs to be replaced with a new type corresponding to the
changed type of the electric component cover. Further, the type of
the electric component cover may be changed according to an
internal structure of a cooling apparatus in which the hermetic
type compressor is installed even if the same electric components
are covered with the electric component cover, and in this case,
the electric component bracket needs to be replaced with a new type
corresponding to the changed type of the electric component cover.
That is, various types of electric component brackets are required
according to user environments.
[0014] However, since the replacement of the electric component
bracket fixed to the hermetic container with a different type of
electric component bracket is difficult, if a new electric
component bracket having a different specification is required in a
conventional hermetic type compressor manufacturing line,
manufacturing equipment to install the new electric component
bracket on the outer surface of the hermetic container is
prepared.
SUMMARY
[0015] In one general aspect, there is provided a hermetic type
compressor comprising: a hermetic container comprising: a
compression unit configured to perform compression of a
refrigerant; and a drive unit configured to provide driving force
to compress the refrigerant; connection terminals passing through
the hermetic container, the connection terminals configured to be
connected to electric components relating to driving the drive
unit; an electric component cover configured to protect the
electric components connected to the connection terminals, the
electric component cover located at the outside of the hermetic
container; and an electric component bracket installed on the outer
surface of the hermetic container around the connection terminals,
the electric component bracket configured to be fastened to the
electric component cover, wherein bracket fixing members provided
with first fastening units are provided on the outer surface of the
hermetic container around the connection terminals, the bracket
fixing members configured to detachably connect the electric
component bracket to the outer surface of the hermetic container,
and wherein second fastening units to which the first fastening
units are detachably connected are provided on the electric
component bracket.
[0016] The hermetic type compressor may further include that third
fastening units are provided on the electric component bracket, and
fourth fastening units to which the third fastening units are
detachably connected are provided on the electric component
cover.
[0017] The hermetic type compressor may further include that the
bracket fixing members comprise a plurality of bracket fixing
members.
[0018] The hermetic type compressor may further include that three
bracket fixing members are disposed in a triangular shape.
[0019] The hermetic type compressor may further include that the
bracket fixing members are welded to the outer surface of the
hermetic container.
[0020] The hermetic type compressor may further include that: each
first fastening unit comprises: a protrusion part protruded
outwardly from the outer surface of the hermetic container; and a
hanging part comprising a cross-sectional area greater than that of
the protrusion part and provided at the end of the protrusion part;
and each second fastening unit comprises: a hanging part pass hole
configured to pass the hanging part; and a protrusion part fitting
hole formed at the top of the hanging part pass hole, the
protrusion part fitting hole configured to be communicated with the
hanging part pass hole and comprising a width corresponding to a
width of the protrusion part such that the protrusion part is
fitted into the protrusion part fitting hole.
[0021] The hermetic type compressor may further include that: the
bracket fixing members comprise a plurality of bracket fixing
members provided around the connection terminals and configured to
be separated from each other by a designated interval in the
circumferential direction; and the second fastening units comprise
a plurality of second fastening units configured to be fastened to
the first fastening units in response to the electric component
bracket being rotated under a condition that the second fastening
units enter an area between the bracket fixing members.
[0022] The hermetic type compressor may further include that: one
of each first fastening unit and each second fastening unit
comprises an arc-shaped fitting groove; and the other one of each
first fastening unit and each second fastening unit comprises a
fitting part fitted into the fitting groove while sliding in the
circumferential direction.
[0023] The hermetic type compressor may further include that the
fitting part is configured to be fitted into the fitting groove in
an interference fit manner.
[0024] In another general aspect, there is provided a hermetic
container for a hermetic type compressor, the hermetic container
comprising: an electric component bracket releasably attached to
the outer surface of an hermetic container, the electric component
bracket comprising second fastening units; and bracket fixing
members provided on the outer surface of the hermetic container,
the bracket fixing members comprising first fixing units, the first
fixing units and second fixing configured to be releasably
connected to one another to releasably attach the electric
component bracket to the outer surface of the hermetic
container.
[0025] The hermetic container may further include connection
terminals passing through the hermetic container, the connection
terminals configured to be connected to electric components.
[0026] The hermetic container may further include that the electric
component bracket and the bracket fixing members are positioned
about the connection terminals.
[0027] The hermetic container may further include that the electric
component bracket comprises a third fastening unit, the third
fastening unit configured to releasably attach to a electric
component cover configured to protect electric components connected
to the connection terminals at the outside of the hermetic
container.
[0028] The hermetic container may further include that: the second
fastening unit comprises at least one opening in the electric
component bracket; and at least one bracket fixing member extends
from the hermetic container to be received in the opening of a
corresponding second fasting unit, releasably attaching the
electric component bracket to the hermetic container.
[0029] Other features and aspects may be apparent from the
following detailed description, the drawings, and the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
[0030] FIG. 1 is a sectional elevational view schematically
illustrating an example of the overall configuration of a hermetic
type compressor.
[0031] FIG. 2 is an exploded perspective view illustrating an
example of a structure of a hermetic type compressor at the side of
connection terminals.
[0032] FIG. 3 is an extracted perspective view illustrating an
example of the structure of the hermetic type compressor at the
side of the connection terminals, showing connection of bracket
fixing members to a lower container.
[0033] FIG. 4 is an extracted perspective view illustrating an
example of the structure of the hermetic type compressor at the
side of the connection terminals 2, showing connection of the
bracket fixing members to a hermetic container in the state of FIG.
3.
[0034] FIG. 5 is an enlarged plan view illustrating examples of a
first fastening unit of the bracket fixing member and a second
fastening unit of the electric component bracket in the state of
FIG. 4.
[0035] FIG. 6 is an extracted perspective view of illustrating an
example of the structure of the hermetic type compressor at the
side of the connection terminals, showing completion of the
connection of the bracket fixing members to the hermetic container
in the state of FIG. 4.
[0036] FIG. 7 is an enlarged plan view illustrating examples of the
first fastening unit of the bracket fixing member and the second
fastening unit of the electric component bracket in the state of
FIG. 6.
[0037] FIG. 8 is a perspective view illustrating an example of a
structure of connection parts between the electric component
bracket and an electric component cover in the hermetic type
compressor prior to connection of the electric component cover to
the electric component bracket.
[0038] FIG. 9 is a perspective view illustrating examples of
bracket fixing members and an electric component bracket in a state
separated from a hermetic container in a hermetic type
compressor.
[0039] FIG. 10 is a front view of an example of the hermetic type
compressor illustrating connection of the electric component
bracket to the hermetic container in the state of FIG. 9.
[0040] FIG. 11 is a front view of illustrating an example of the
hermetic type compressor, showing completion of the connection of
the electric component bracket to the hermetic container in the
state of FIG. 10.
[0041] Throughout the drawings and the detailed description, unless
otherwise described, the same drawing reference numerals will be
understood to refer to the same elements, features, and structures.
The relative size and depiction of these elements may be
exaggerated for clarity, illustration, and convenience.
DETAILED DESCRIPTION
[0042] The following detailed description is provided to assist the
reader in gaining a comprehensive understanding of the methods,
apparatuses, and/or systems described herein. Accordingly, various
changes, modifications, and equivalents of the systems,
apparatuses, and/or methods described herein will be suggested to
those of ordinary skill in the art. The progression of processing
steps and/or operations described is an example; however, the
sequence of steps and/or operations is not limited to that set
forth herein and may be changed as is known in the art, with the
exception of steps and/or operations necessarily occurring in a
certain order. Also, descriptions of well-known functions and
constructions may be omitted for increased clarity and
conciseness.
[0043] A hermetic type compressor may be employed by a cooling
apparatus of a refrigerator or an air conditioner to compress a
refrigerant, and include a hermetic container forming an external
appearance of the hermetic type compressor.
[0044] As shown in the example of FIG. 1, a compression unit 100 to
perform compression of the refrigerant and a drive unit 200 to
provide driving force to compress the refrigerant may be installed
in the hermetic container 1. The drive unit 200 includes a motor
including a stator 210 and a rotor 220, and a rotary shaft 230 to
transmit the driving force of the drive unit 200 to the compression
unit 100 is pressed into the rotor 200.
[0045] The compression unit 100 includes a piston 120 connected to
an eccentric part 231 formed at one end of the rotary shaft 230
through a connecting rod 110 and rectilinearly reciprocating within
a compression chamber.
[0046] When the rotor 220 is rotated through electrical interaction
between the stator 210 and the rotor 220 by applying power to the
stator 210 through the above structure, the rotary shaft 230
pressed into the rotor 220 is rotated together with the rotation of
the rotor 220, and the piston 120 connected to the eccentric part
231 of the rotary shaft 230 through the connecting rod 110
rectilinearly reciprocates within the compression chamber,
achieving compression of the refrigerant.
[0047] The hermetic type compressor may generally refer to a
reciprocating compressor including a compression unit having a
connecting rod and a piston. Hermetic type compressors may
generally include a rotary compressor, each of which includes a
drive unit driven by power, regardless of types of compression
units, and a compression unit to perform compression of a
refrigerant through driving of the drive unit.
[0048] As shown in the examples of FIGS. 1 and 2, a hermetic
container 1 is formed by connecting an upper container 11 and a
lower container 10 to each other. Connection terminals 31 for
connection with electric components 20 relating to driving of the
drive unit 200, i.e., applying of power to the drive unit 200, are
installed at one side of the lower container 10. The connection
terminals 31 are installed on the lower container 10 through a
terminal housing 30. The terminal housing 30 passes through one
side of the lower container 10, and the connection terminals 31
pass through the terminal housing 30 such that one end of each
connection terminal 31 is exposed to the outside of the hermetic
container 1 and the other end of each connection terminal 31 is
connected to the drive unit 200 in the hermetic container 1.
Electric components 20 relating to driving of the drive unit 200,
including an overload protector 21 and a relay 22 are connected to
the ends of the connection terminals 31 exposed to the outside of
the hermetic container 1. Various kinds of the overload protector
21 and the relay 22 may be used, and the electric components 20 may
include other electronic parts relating to driving of the drive
unit 200 in addition to the overload protector 21 and the relay 22.
The overload protector 21 and the relay 22 are illustrated simply
to show examples of electric components relating to the driving of
the drive unit 200.
[0049] The electric components 20 located at the outside of the
hermetic container 1 are covered with an electric component cover
40. An electric component bracket 50 to be connected to the
electric component cover 40 is provided on the outer surface of the
hermetic container 1 around the connection terminals 31.
[0050] The hermetic type compressor is configured such that the
electric component bracket 50 may be replaced with a new one
according to user environments.
[0051] That is, with reference to FIGS. 2 to 7, for example, in a
hermetic type compressor, bracket fixing members 60 are provided on
the outer surface of the lower container 10 around the connection
terminals 31 such that the electric component bracket 50 is
detachably connected to the bracket fixing members 60. First
fastening units 61 are provided on the bracket fixing members 60,
and second fastening units 51, which may be detachably connected to
the first fastening units 61, are provided on the electric
component bracket 50.
[0052] Therefore, in the hermetic type compressor, if replacement
of the electric component bracket 50 is required according to user
environments, such as if the type of the electric component cover
40 is changed as the number or the kinds of the electric components
20 are changed, the design of the electric component cover 40 is
changed, or the electric component bracket 50 is damaged, the
electric component bracket 50 may be simply replaced with a new
one.
[0053] The bracket fixing members 60 may be formed in the shape of
a small metal piece, and regions of the bracket fixing members 60
may respectively form the first fastening units 61. The first
fastening unit 61 of each bracket fixing member 60 includes a
protrusion part 61a protruded outwardly from the outer surface of
the hermetic container 1 when each bracket fixing member 60 is
installed on the outer surface of the hermetic container, and a
hanging part 61b having a cross-sectional area greater than that of
the protrusion part 61a and provided at one end of the protrusion
part 61a. The other end of the protrusion part 61a opposite to the
hanging part 61b forms a fixing surface 62 welded to the outer
surface of the lower container 10 to fix each bracket fixing member
60.
[0054] The electric component bracket 50 may be formed in the shape
of a thin metal sheet. An exposure hole 52 to expose the connection
terminals 31 and the terminal housing 30 is formed through the
center of the electric component bracket 50. In this example, each
second fastening unit 51 is provided in the shape of a hole formed
through the electric component bracket 50 around the exposure hole
52.
[0055] Each second fastening unit 51 includes a hanging part pass
hole 51a configured to pass the hanging part 61b of the first
fastening unit 61, and a protrusion part fitting hole 51b formed at
the top of the hanging part pass hole 51a and having a width
corresponding to the width of the protrusion part 61a such that the
protrusion part 61a of the first fastening unit 61 may be fitted
into the protrusion part fitting hole 51b. The hanging part pass
hole 51a and the protrusion part fitting hole 51b are formed so as
to be communicated with each other. A length of the protrusion part
fitting hole 51b in the vertical direction may be equal to or be
greater than by a designated length a thickness of the protrusion
part 61a in the vertical direction.
[0056] Therefore, when the electric component bracket 50 is
fastened to the bracket fixing members 60 under the condition that
the bracket fixing members 60 are welded onto the hermetic
container 1, the electric component bracket 50 may move toward the
hermetic container 1 under the condition that the electric
component bracket 50 is located in front of the bracket fixing
members 60 so as to cause the hanging parts 61b of the first
fastening units 61 and the hanging part pass holes 51a of the
second fastening units 51 to coincide with each other, as shown in
FIGS. 4 and 5, allowing the hanging parts 61b of the first
fastening units 61 to pass through the hanging part pass holes 51a
of the second fastening units 51. Thereafter, the electric
component bracket 50 is pulled downwards so as to fit the
protrusion parts 61a of the first fastening units 61 into the
protrusion part fitting holes 51b of the second fastening units 51,
as shown in FIGS. 6 and 7, for example. The electric component
bracket 50 may be simply fastened to the bracket fixing members 60
by hanging the hanging parts 61b of the first fastening units 61
onto the protrusion part fitting holes 51b of the second fastening
units 51.
[0057] When the electric component bracket 50 is pulled forwardly
from the hermetic container 1, under the condition that the
electric component bracket 50 is lifted up such that the hanging
parts 61b of the first fastening units 61 and the hanging part pass
holes 51a of the second fastening units 51 coincide with each
other, so as to allow the hanging parts 61b to come out of the
hanging part pass holes 51a, the electric component bracket 50 is
separated again from the bracket fixing members 60. Therefore, the
electric component bracket 50 may maintain a state of being firmly
fixed to the bracket fixing members 60 unless the hanging parts 61b
of the first fastening units 61 come out of the hanging part pass
holes 51a of the second fastening units 51 by lifting up the
electric component bracket 50 fastened to the bracket fixing
members 60.
[0058] To stably maintain the fastened state of the electric
component bracket 50 onto the outer surface of the hermetic
container 1, at least two bracket fixing members 60 may be provided
around the connection terminals 31. In one example, three bracket
fixing members 60 are disposed in a triangular shape around the
terminal housing 30, supporting the electric component bracket 50
at three points. However, any suitable number of bracket fixing
members 60 may be used.
[0059] Further, to prevent or limit movement of the electric
component bracket 50 fastened to the bracket fixing members 60, a
protruding length of the protrusion parts 61a of the first
fastening units 61 may be about equal to a thickness of the
electric component bracket 50.
[0060] FIG. 8 illustrates an example in which the electric
component cover 40 is separated from the electric component bracket
50 fixed to the outer surface of the hermetic container 1 through
the bracket fixing members 60.
[0061] The electric component cover 40 may be provided in the shape
of a box having one surface opened toward the hermetic container 1.
The electric component cover 40 may be an injection-molded product
made of plastic so as to be elastically deformable, and have a
small wall thickness.
[0062] The electric component cover 40 may be detachably connected
to the electric component bracket 50. For this purpose, third
fastening units 53 are provided on the electric component bracket
50, and fourth fastening units 41 to which the third fastening
units 53 may be detachably connected are provided on the electric
component cover 40.
[0063] The third fastening units 53 are formed at the edge of the
electric component bracket 50 so as not to interfere with the first
fastening units 61 of the bracket fixing members 60. Each third
fastening unit 53 includes a protrusion piece 53a protruded toward
the electric component cover 40, and a hanging hole 53b formed
through the protrusion piece 53a.
[0064] Further, each fourth fastening unit 41 includes a support
piece 41a provided at the inside of the side wall of the electric
component cover 40 and separated from the side wall of the electric
component cover 40 so as to be supported by the inner surface of
the protrusion piece 53a, and a hanging protrusion 41b protruded
from the outer surface of the support piece 41a so as to be fitted
into the hanging hole 53b. The support piece 41a may have a small
thickness so as to be elastically deformed to fit into the hanging
hole 53b.
[0065] Therefore, the electric component bracket 50 and the
electric component cover 40 may be detachably fastened to each
other under the condition that the electric component bracket 50 is
fixed to the outer surface of the lower container 10 through the
bracket fixing members 60. For example, the electric component
cover 40 may be pressed toward the hermetic container 1 while
contacting the front surface of the electric component bracket 50
so as to fit the hanging protrusions 41b of the fourth fastening
units 41 into the hanging holes 53b of the third fastening units
53.
[0066] To separate the electric component cover 40 from the
electric component bracket 50, external force may be applied to
both side walls of the electric component cover 40 so as to cause
both side walls to get closer to each other. Then, the support
pieces 41a of the fourth fastening units 41 may be elastically
deformed and thus the hanging protrusions 41b may become separated
from the hanging holes 53b of the third fastening units 53. By
pulling the electric component cover 40 forwardly from the hermetic
container 1, the electric component cover 40 is separated from the
electric component bracket 50.
[0067] As described above, in the hermetic type compressor, the
electric component bracket 50 may be detachably connected to the
outer surface of the hermetic container 1 through the first
fastening units 61 of the bracket fixing members 60 connected to
the outer surface of the hermetic container 1 and the second
fastening units 51 provided on the electric component bracket 50.
Thus, if the electric component bracket 50 is defective or damaged,
there may be no need to replace the whole of the lower container
10, as only the electric component bracket 50 may be replaced.
[0068] Further, in the hermetic type compressor, as far as the
first fastening units 61 and the second fastening units 51 may be
detachably connected to each other, the electric component bracket
50 may be replaced with any one of various types of electric
component brackets in which other structures except for the second
fastening units 51 are different. Therefore, if a change in design
of the electric component bracket 50 is required, for example, in
accordance with a change in design of the electric component cover
40, or a change in specification of the electric component bracket
50, the electric component bracket 50 may be simply replaced with
various types of electric component brackets.
[0069] Further, in the hermetic type compressor, the electric
component bracket 50 may be fastened to the outer surface of the
hermetic container 1 in a simple fit manner. Thus, although a
hermetic type compressor manufacturer may manufacture a hermetic
type compressor provided with only the bracket fixing members 60,
without the electric component bracket 50, and may provide the
hermetic type compressor to a user, the user may easily prepare the
electric component bracket 50 detachably connected to the bracket
fixing members 50 of the supplied hermetic type compressor.
Otherwise, although a manufacturer simultaneously provides various
kinds of electric component brackets having different types to a
user, the user may select an electric component bracket desired by
the user out of the various electric component brackets as long as
the electric component brackets have the same structure of second
fastening units.
[0070] The bracket fixing members and the second fastening units
provided to detachably connect the electric component bracket to
the bracket fixing members may be modified into various types
differing from the type.
[0071] That is, as shown in FIGS. 9 to 11, which illustrate other
examples, a pair of bracket fixing members 60' is disposed around
connection terminals 31 such that the bracket fixing members 60'
are separated from each other by a designated interval in the
circumferential direction. However, at least three bracket fixing
members 60' may be provided as far as the bracket fixing members
60' are disposed around the connection terminals 31 such that the
bracket fixing members 60' are separated from each other by a
designated interval in the circumferential direction.
[0072] A pair of second fastening units 51' is also provided on an
electric component bracket 50' so as to correspond to the number of
the bracket fixing members 60'. When the electric component bracket
50' is rotated under the condition that the second fastening units
51' enter an area between the bracket fixing members 60', the
second fastening units 51' are fastened with first fastening units
61' provided on the bracket fixing members 60'.
[0073] The second fastening units 51' are provided on the rear
surface of the electric component bracket 50' around an exposure
hole 52 such that the second fastening units 51' are separated from
each other by a designated interval in the circumferential
direction. In this example, each second fastening unit 51' includes
an extension part 51a' extended backwardly from the rear surface of
the electric component bracket 50', and a fitting part 51b' bent
from the extension part 51a' in the radial direction so as to be
parallel with the electric component bracket 50'.
[0074] Further, each first fastening unit 61' includes a fitting
groove into which the fitting part 51' of the second fastening unit
51' may be fitted while sliding in the circumferential direction
when the electric component bracket 50' is rotated. That is, the
bracket fixing member 60' is formed to have an arc-shaped cross
section, i.e., about an L-shaped cross section and is welded to the
outer surface of the hermetic container 10, and the first fastening
unit 61' is an arc-shaped fitting groove formed between the bracket
fixing member 60' and the outer surface of the hermetic container
10.
[0075] Therefore, in this example, to connect the electric
component bracket 50' to the hermetic container 10, the fitting
parts 51b' of the second fastening units 51' enter the area between
the bracket fixing members 60' under the condition that the
electric component bracket 50' is rotated by an angle of 90
degrees, as shown in FIG. 10, for example. Thereafter, when the
electric component bracket 50' is rotated by an angle of 90 degrees
in the clockwise direction so as to stand erect, as shown in FIG.
11, the fitting parts 51b' of the second fastening units 51' are
fitted into the first fastening units 61' and then the electric
component bracket 50' may be simply connected to the outer surface
of the hermetic container 10.
[0076] To prevent or limit movement of the electric component
bracket 50' under the condition that the first fastening units 61'
and the second fastening units 51' are fastened to each other, the
fitting parts 51b' and the first fastening units 61' may be
connected to each other in an interference fit manner. Further, to
complete fastening of the first fastening units 61' and the second
fastening units 51' to each other under the erect standing state of
the electric component bracket 50', a restriction protrusion 63 to
restrict sliding of the fitting part 51b' is provided at one end of
each first fastening unit 61'.
[0077] In order to separate the electric component bracket 50'
fixed to the outer surface of the hermetic container 10 from the
hermetic container 10, the electric component bracket 50' is
rotated from the state of FIG. 11 in the counterclockwise direction
so as to be converted into the state of FIG. 10. The fitting parts
51b' may come out of the first fastening units 61', and then the
electric component bracket 50' may simply be separated from the
hermetic container 10.
[0078] Other parts in this example, except for the first and second
fastening units 61' and 51, may be the same as those in the
examples of FIGS. 1 to 8, and an attachment and detachment
structure between the electric component bracket 50' and the
electric component cover 40 in this example is substantially
similar to that described above.
[0079] As is apparent from the above description, a hermetic type
compressor may enable an electric component bracket for connection
with an electric component cover to be detachably connected to the
outer surface of a hermetic container through bracket fixing
members.
[0080] Therefore, if replacement of the electric component bracket
is required according to user environments, such as if the type of
the electric component cover is changed as the number or the kinds
of electric components are changed, if the design of the electric
component cover is changed, or if the electric component bracket is
damaged, the electric component bracket may be simply replaced with
a new one, and design change of the electric component bracket may
be more easily performed.
[0081] A number of examples have been described above.
Nevertheless, it will be understood that various modifications may
be made. For example, suitable results may be achieved if the
described techniques are performed in a different order and/or if
components in a described system, architecture, device, or circuit
are combined in a different manner and/or replaced or supplemented
by other components or their equivalents. Accordingly, other
implementations are within the scope of the following claims.
* * * * *