CN112145434A - Compressor and household appliance - Google Patents
Compressor and household appliance Download PDFInfo
- Publication number
- CN112145434A CN112145434A CN202010586776.1A CN202010586776A CN112145434A CN 112145434 A CN112145434 A CN 112145434A CN 202010586776 A CN202010586776 A CN 202010586776A CN 112145434 A CN112145434 A CN 112145434A
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- CN
- China
- Prior art keywords
- compressor
- accumulator
- filter
- tube
- refrigerant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 50
- 239000007791 liquid phase Substances 0.000 claims abstract description 44
- 239000012071 phase Substances 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 27
- 238000005192 partition Methods 0.000 claims description 17
- 230000014759 maintenance of location Effects 0.000 claims description 8
- 239000007792 gaseous phase Substances 0.000 claims description 5
- 239000012465 retentate Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000012808 vapor phase Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/026—Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/02—Compressor arrangements of motor-compressor units
- F25B31/026—Compressor arrangements of motor-compressor units with compressor of rotary type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/18—Optimization, e.g. high integration of refrigeration components
Abstract
A compressor (10) for a household appliance (1), comprising: a compressor housing (11), wherein the compressor housing (11) accommodates a compression chamber (23) for compressing a gas phase (GR) of a refrigerant; and an accumulator (16) for storing a liquid phase (LR) of the refrigerant, wherein the accumulator (16) is arranged within the compressor housing (11).
Description
Technical Field
The present invention relates to a compressor for a household appliance and a household appliance having the same.
Background
A household appliance such as a refrigerator, a heat pump dryer, a heat pump washing machine, a heat pump laundry dryer or a heat pump dishwasher comprises a compressor for compressing a gaseous phase of a refrigerant. To store the liquid phase of the refrigerant, an accumulator may be provided. The accumulator may be placed outside the compressor housing of the compressor.
Disclosure of Invention
It is an object of the present invention to provide an improved compressor.
Accordingly, a compressor for a household appliance is provided. The compressor comprises a compressor housing, wherein the compressor housing accommodates a compression chamber for compressing a gaseous phase of the refrigerant and an accumulator for storing a liquid phase of the refrigerant, wherein the accumulator is arranged inside the compressor housing.
The use of an external accumulator can be avoided since the accumulator is arranged inside the compressor housing. In this way, additional available space around the compressor is obtained. This improves the space requirement of the compressor, which is very important in certain applications such as heat pump dryers, heat pump washing machines, heat pump laundry dryers or heat pump dishwashers. Furthermore, the compressor can be produced at a lower cost. The cost reduction comes from the fact that: in assembling the compressor housing, the accumulator may be integrated into the compressor during assembly of the compressor housing.
There may also be situations where there is no liquid phase. In this case, the entire refrigerant is in the gas phase. This means that the accumulator is only used when the liquid phase has to be stored before evaporation. The compressor is capable of compressing a gas phase. The compressor is preferably a rotary compressor or may be referred to as a rotary compressor. A "refrigerant" is a substance or mixture, typically a fluid, used in heat pumps and refrigeration cycles. In most cycles, the refrigerant undergoes a phase change from liquid to gas and back again. The gas phase may be converted to the liquid phase and vice versa. The gaseous phase may be referred to as gaseous refrigerant. The liquid phase may be referred to as liquid refrigerant.
The compressor housing is preferably cylindrical in shape with an outer wall, a bottom cap and a top cap. A cap sealingly closes the outer wall at an end of the outer wall. The compressor housing may be made of steel. The outer wall may be rotationally symmetric with respect to the centerline. The centre line is preferably arranged horizontally, so that the compressor housing is also arranged horizontally. However, the compressors may also be arranged vertically. The accumulator uses a bottom cap and a portion of the outer wall as the housing. In particular, the accumulator is arranged inside the compressor housing. The centre line may be arranged horizontally or vertically. In other words, the compressor may be a horizontal compressor or a vertical compressor.
According to one embodiment, the compressor housing encloses an accumulator and an inner volume accommodating the compression chamber, wherein the accumulator comprises a partition wall separating the accumulator from the inner volume.
The dividing wall prevents the refrigerant from entering the internal volume of the compressor itself. The partition wall may be a steel membrane. A "membrane" is a metal sheet that seals the compressor from the interior volume. Neither gas nor liquid can pass through the membrane. The membrane may be a steel sheet. The compressor may have a plurality of compressor components necessary to compress the gaseous phase of the refrigerant. The compressor components may include an electric motor, a steering system, valves, pipes, discharge ports, pistons, mufflers, cylinders, and the like. Compressor components are also disposed within the interior volume.
According to another embodiment, the accumulator is arranged between the partition wall and a bottom cap of the compressor housing, wherein the bottom cap has an inlet structure for sucking in a gas phase and a liquid phase of the refrigerant.
In order to provide sufficient space for the reservoir, the bottom cap may be extended. The inlet arrangement may be a tube arranged horizontally or radially with respect to the cylindrical compressor housing.
According to another embodiment, the accumulator comprises a filter arranged downstream of the inlet arrangement and within the compressor housing.
Both the gas phase and the liquid phase pass through the filter as they enter the accumulator. The filter is adapted to remove particles from the liquid phase.
According to another embodiment, the filter is cylindrical, wherein the filter is plugged onto the inlet structure.
The filter is replaceable for maintenance.
According to another embodiment, the filter is plate-like, wherein the filter is attached to an end of the inlet arrangement.
The filter is attached to the end of the inlet arrangement that protrudes into the compressor housing. The filter may have a circular shape.
According to another embodiment, the inlet arrangement comprises an expansion, wherein the filter is attached to an end of the expansion.
The extension increases the diameter of the inlet arrangement so that the filter has a larger cross-sectional area. This improves the filtering effect.
According to another embodiment, the filter is plate-shaped, wherein the filter is attached to the compressor housing.
In particular, the filter may be attached to the partition wall, the bottom cap and the outer wall of the compressor housing.
According to another embodiment, the filter comprises a mesh.
In particular, the filter comprises a metal mesh or a polymer mesh.
According to another embodiment, the accumulator comprises a retention tube for retaining the liquid phase of the refrigerant in the accumulator.
The trap tube retains the liquid phase in the accumulator until it evaporates. The trap allows the gas phase to exit the accumulator. Thus, the trap tube serves to separate the liquid phase from the vapor phase of the refrigerant. The trap tube has a hole through which oil for lubricating the movable parts of the compressor can pass.
According to another embodiment, the accumulator includes a cap covering the detaining tube for preventing liquid phase of the refrigerant from entering the detaining tube and allowing gas phase of the refrigerant to enter the detaining tube.
The cover is optional. This cover is only used in the case of compressor designs where the liquid phase of the refrigerant can flow directly from the inlet structure into the detaining tube. The cover may be a steel plate. The cover is arranged at a distance from the upper end of the detaining tube so that the gas phase can enter the detaining tube. The cap prevents the liquid phase exiting the inlet structure from directly entering the trap.
According to another embodiment, the detaining tube is connected to the suction port of the compressor.
The suction port may be an inner suction port or an outer suction port. By "internal" is meant that the suction port is disposed inside the compressor housing. By "external" is meant that the suction port is disposed outside the compressor housing.
According to another embodiment, the retention tube is arranged inside the compressor housing, wherein the retention tube is guided through the partition wall by means of an outlet of the accumulator, and wherein the outlet is connected to a suction port inside the compressor housing.
In this case, the suction port is an internal suction port. The outlet may be a tube guided through the partition wall.
According to another embodiment, the detaining tube is at least partially arranged outside the compressor housing, wherein the detaining tube is guided through the compressor housing, and wherein the detaining tube is connected to a suction port outside the compressor housing.
In this case, the suction port is an external suction port. The detaining tube is led through the compressor housing to the outside.
All of the above design options for the compressor are applicable to both horizontal and vertical compressors.
Furthermore, a household appliance comprising such a compressor is provided.
The household appliance may be a clothes dryer, a dishwasher, a refrigerator, a deep freezer, etc. In case the household appliance is a dryer or a dishwasher, the compressor may be part of a heat pump. In particular, the household appliance may be a heat pump dryer, a heat pump washing machine, a heat pump laundry dryer or a heat pump dishwasher.
Other possible implementations or alternative solutions of the invention also include combinations of features described above or below in relation to the embodiments, which combinations are not explicitly mentioned here. Those skilled in the art may also add individual or isolated aspects and features to the most basic form of the invention.
Drawings
Other embodiments, features, and advantages of the invention will become apparent from the following description and other aspects, taken in conjunction with the accompanying drawings, in which:
fig. 1 shows a schematic perspective view of an embodiment of a household appliance;
fig. 2 shows a cross-sectional view of an embodiment of a compressor for the household appliance according to fig. 1;
fig. 3 shows an enlarged view of the compressor according to view III of fig. 2;
figure 4 shows another cross-sectional view of the compressor according to the cross-sectional line IV-IV of figure 2;
FIG. 5 shows another cross-sectional view of the compressor according to section line V-V of FIG. 4;
fig. 6 shows a cross-sectional view of another embodiment of a compressor for a household appliance according to fig. 1;
fig. 7 shows another cross-sectional view of the compressor according to section line VII-VII of fig. 6;
fig. 8 shows a cross-sectional view of another embodiment of a compressor for a household appliance according to fig. 1;
fig. 9 shows a cross-sectional view of another embodiment of a compressor for a household appliance according to fig. 1; and
fig. 10 shows a sectional view of a further embodiment of a compressor for a household appliance according to fig. 1.
Detailed Description
In the drawings, like reference numerals refer to identical or functionally equivalent elements, unless otherwise specified.
Fig. 1 shows a schematic perspective view of an embodiment of a household appliance 1. The household appliance 1 may be a clothes dryer, a dishwasher, a refrigerator, a deep freezer, etc. The household appliance 1 has a housing 2, the housing 2 comprising a bottom 3, a top plate 4 arranged opposite the bottom 3, two opposite side walls 5, 6 and a rear wall 7. The housing 2 is in the shape of a rectangular parallelepiped. The housing 2 has a front wall 8 opposite the rear wall 7. On the front wall 8, a door 9 is provided, which door 9 can be opened to insert laundry or other items into the household appliance 1. In this case, the household appliance 1 is a front loader. The door 9 may also be provided on the top panel 4. In this case, the household appliance 1 is a top loader.
Fig. 2 shows a sectional view of an embodiment of a compressor 10 for a household appliance 1. Fig. 3 shows an enlarged view of the compressor 10 according to view III of fig. 2. Fig. 4 shows a cross-sectional view of the compressor 10 according to the cross-sectional line IV-IV of fig. 2. Fig. 5 shows a further sectional view of the compressor 10 according to section line V-V of fig. 4. Next, fig. 2 to 5 are referred to simultaneously.
In case the domestic appliance 1 is a dryer or a dishwasher, the compressor 10 is part of a heat pump. The compressor 10 is a rotary compressor. In particular, the compressor 10 is a horizontal rotary compressor. The compressor 10 includes a compressor housing 11. The compressor housing 11 houses the movable parts (not shown) of the compressor 10 for compressing the gas phase GR of the refrigerant. A "refrigerant" is a substance or mixture, typically a fluid, used in heat pumps and refrigeration cycles. In most cycles, the refrigerant undergoes a phase change from liquid to gas and back again. The refrigerant also has a liquid phase LR. The gas phase GR may be converted to the liquid phase LR, and vice versa. The gas phase GR may be referred to as gaseous refrigerant. The liquid phase LR may be referred to as a liquid refrigerant.
The compressor housing 11 has a cylindrical outer wall 12, which cylindrical outer wall 12 can be rotationally symmetrical with respect to a center line 13. The compressor housing 11 also has a bottom cap 14 and a top cap 15, the bottom cap 14 and the top cap 15 sealingly enclosing the outer wall 12 at the ends of the outer wall. As shown in fig. 2, the centerline 13 is horizontally disposed when the compressor 10 is in use.
In the compressor housing 11, an accumulator 16 for storing a liquid phase LR of the refrigerant is accommodated. The accumulator 16 uses a portion of the compressor housing 11 as a housing. Accumulator 16 is part of compressor 10. The accumulator 16 is dedicated to causing the liquid phase LR of the refrigerant to be stored before entering the compressor 10 itself. This is because only the gas phase GR, but not the liquid phase LR, can be compressed. The compressor housing 11 has an inner volume 17, which inner volume 17 comprises the above-mentioned movable parts of the compressor 10. In other words, the components of the compressor 10 which are necessary for the compression function of the compressor 10 are arranged inside the inner volume 17. The internal volume 17 is separated from the accumulator 16 by means of a partition wall 18. The partition wall 18 is a hermetically sealed wall that fluidly separates the accumulator 16 from the interior volume. No fluid can pass through the partition wall 18 itself. The partition wall 18 may be made of steel.
As can be seen in fig. 2, 3 and 5, the reservoir 16 has an inlet structure 19 that can be disposed on an upper portion of the bottom cap 14. The vapor phase GR of the refrigerant and the liquid phase LR of the refrigerant may enter the accumulator 16 through the inlet arrangement 19. The inlet structure 19 may be a tube arranged parallel to the centre line 13. The inlet arrangement 19 may be welded to the bottom cap 14. The inlet arrangement 19 is arranged horizontally. The inlet arrangement 19 may also be arranged radially with respect to the housing 11.
The accumulator 16 comprises a retention tube 20, which retention tube 20 prevents the liquid phase LR from entering an external suction port (not shown) of the compressor 10, in particular prevents the liquid phase LR from entering a compression chamber 23 of the compressor 10, and allows only the gas phase GR of the refrigerant to enter. The trap 20 retains the liquid phase LR in the accumulator 16. The detainer tube 20 is at least partially disposed within the accumulator 16. Accordingly, the detaining tube 20 may be referred to as an inner tube. The detaining tube 20 is arranged perpendicular to the centre line 13 and thus extends vertically. The detainer tube 20 passes through the outer wall 12 of the compressor housing 11. The detaining tube 20 is connected to the aforementioned external suction port of the compressor 10. The detaining tube 20 has a hole (not shown) through which oil for lubricating the movable parts of the compressor 10 can pass.
The accumulator 16 includes a filter 21. The filter 21 is capable of removing particles, such as dust, from the liquid phase LR of the refrigerant as the refrigerant enters the accumulator 16 through the inlet arrangement 19. The filter 21 is plate-shaped. The filter 21 may be a mesh, in particular a metal mesh, which is connected to the outer wall 12, the bottom cap 14 and the partition wall 18. The filter 21 is arranged horizontally. In particular, the filter 21 is arranged perpendicularly to the retention tube 20.
The accumulator 16 also has an optional cover 22. The cap 22 is plate-shaped and covers the retentate tubes 20 such that the liquid phase LR of the refrigerant entering the accumulator 16 through the inlet structure 19 cannot directly enter the retentate tubes 20. The cover 22 may be a steel plate. The cover 22 may have a circular, rectangular or any other suitable shape. The cover 22 may be connected to the filter 21 such that the filter 21 and the cover 22 form a single member. A cover 22 may also be attached to the outer wall 12. For example, the cover 22 may be welded to the outer wall 12. The cover 22 is arranged at a distance from the upper end of the detaining tube 20.
Returning now to fig. 2, the compressor 10 comprises a compression chamber 23, which compression chamber 23 is arranged inside the inner volume 17 or is part of the inner volume 17. In the compression chamber 23, the gas phase GR of the refrigerant is compressed. The compression chamber 23 has a suction port 24 through which a gas phase GR of the refrigerant is sucked. The suction port 24 may be a tube. As previously described, the suction port 24 may be an external suction port. In this case, the suction port 24 is guided through the compressor housing 11. Then, the suction port 24 is connected to the trap pipe 20 outside the compressor housing 11.
However, as described later, the suction port 24 may also be an internal suction port. In this case, the suction port 24 is not guided through the compressor housing 11. Instead, the suction port 24 is connected to the choke tube 20 inside the compressor housing 11. The compressor 10 has a plurality of compressor elements 25, which compressor elements 25 are necessary for compressing the gas phase GR of the refrigerant. The compressor components 25 may include electric motors, steering systems, valves, pipes, discharge ports, and the like.
The compressor 10 functions as follows. The gas phase GR of the refrigerant enters the accumulator 16 through the inlet arrangement 19. If there is also a liquid phase LR of the refrigerant, the liquid phase LR also enters the accumulator 16 through the inlet structure 19. However, the liquid phase LR may not be present. This is the case when all the refrigerant is in the gas phase GR. Both the liquid phase LR and the gas phase GR pass through a filter 21, wherein particles can be removed from the liquid phase LR. A cap 22 is required in this case to prevent the liquid phase LR from directly entering the trap 20. The gas phase GR of the refrigerant may be directly supplied to the suction port 24 by means of the trap pipe 20. In this case, the suction port 24 is an external suction port. The liquid phase LR is stored in the accumulator 16 until it evaporates and enters the suction port 24 of the compressor 10 through the retaining tube 20 as a gas phase GR. Thus, the liquid phase LR is separated from the vapor phase GR of the refrigerant.
Since the accumulator 16 is disposed within the compressor housing 11, an external accumulator may be avoided. In this way, additional available space around the compressor 10 is obtained. This improves the space requirement of the compressor 10, which is very important in some applications such as heat pump dryers, heat pump washing machines, heat pump laundry dryers or heat pump dishwashers. Further, the compressor 10 can be produced at a lower cost. The cost reduction comes from the fact that: the assembly of the bottom cap 14 can be accomplished in the same manner as presently. However, when the bottom cap 14 is assembled, the accumulator 16 may be integrated into the compressor 10.
Fig. 6 and 7 show cross-sectional views of another embodiment of compressor 10. The embodiment of the compressor according to fig. 6 and 7 differs from the embodiment of the compressor 10 according to fig. 2-5 only in that the detaining tube 20 is not connected to the outer suction port of the compressor 10 but to an inner suction port (not shown). The trap tube 20 is connected to the outlet 26 of the accumulator 16. The outlet 26 is a horizontally disposed tube. The outlet 26 is connected to the suction port 24 of the compressor 10. In this case, the suction port 24 is an internal suction port. The outlet 26 is directed through the partition wall 18. In other words, the detaining tube 20 is guided through the partition wall 18 by means of the outlet 26.
Fig. 8 shows a cross-sectional view of another embodiment of compressor 10. The embodiment of the compressor 10 according to fig. 8 differs from the embodiment of the compressor 10 according to fig. 2 to 5 only in that the filter 21 is not plate-shaped. The filter 21 has a cylindrical geometry and is plugged onto the inlet structure 19. The filter 21 is a cylindrical mesh. As can be seen in fig. 8, the inlet arrangement 19 is arranged at a distance from the detaining tube 20. Thus, in the arrangement shown in fig. 8, the cap 22 may be omitted since the retentate tube 20 is located away from the inlet arrangement 19 so that the liquid phase LR of the refrigerant cannot reach the retentate tube 20 directly. As shown in fig. 8, the inlet structure 19 itself may extend horizontally straight. Alternatively, the inlet structure 19 may have a downward curvature such that the inlet structure 19 extends at least partially vertically (not shown).
Fig. 9 shows a cross-sectional view of another embodiment of compressor 10. The embodiment of the compressor 10 according to fig. 9 differs from the embodiment of the compressor 10 according to fig. 2 to 5 only in that the filter 21 is directly attached to the end of the inlet structure 19 extending into the accumulator 16. The filter 21 is plate-shaped. The filter 21 may have a circular shape. The filter 21 is a mesh. As can be seen from fig. 9, the inlet arrangement 19 is arranged at a distance from the retention tube 20. Thus, in the arrangement shown in fig. 9, the cap 22 may be omitted since the retentate tube 20 is located away from the inlet arrangement 19 so that the liquid phase LR of the refrigerant cannot reach the retentate tube 20 directly. As shown in fig. 9, the inlet structure 19 itself may extend horizontally straight. Alternatively, the inlet structure 19 may have a downward curvature such that the inlet structure 19 extends at least partially vertically (not shown).
Fig. 10 shows a cross-sectional view of another embodiment of compressor 10. The embodiment of the compressor 10 according to fig. 10 differs from the embodiment of the compressor 10 according to fig. 9 only in that the inlet structure 19 comprises a conical expansion 27 extending into the accumulator 16. The filter 21 is attached to the expansion 27. The filter 21 is plate-shaped. The filter 21 may have a circular shape. The filter 21 is a mesh. The expansion 27 increases the diameter of the inlet arrangement 19 so that the filter 21 has a larger cross-sectional area. This improves the filtering effect.
As can be seen in fig. 10, the inlet arrangement 19 is arranged at a distance from the detaining tube 20. Thus, in the arrangement shown in fig. 10, the cap 22 may be omitted since the retentate tube 20 is located away from the inlet arrangement 19 so that the liquid phase LR of the refrigerant cannot reach the retentate tube 20 directly. As shown in fig. 10, the inlet structure 19 itself may extend horizontally straight. Alternatively, the inlet structure 19 may have a downward curvature such that the inlet structure 19 extends at least partially vertically (not shown).
While the invention has been described in terms of preferred embodiments, it will be apparent to those skilled in the art that modifications may be made in all embodiments.
List of reference numerals
1 household appliance
2 casing
3 bottom
4 Top board
5 side wall
6 side wall
7 rear wall
8 front wall
9 door
10 compressor
11 compressor housing
12 outer wall
13 center line
14 bottom cap
15 top cap
16 accumulator
17 internal volume
18 partition wall
19 inlet structure
20 detain pipe
21 filter
22 cover
23 compression chamber
24 suction port
25 compressor component
26 outlet
27 expansion part
GR gas phase
Liquid phase of LR
Claims (15)
1. A compressor (10) for a household appliance (1), comprising: a compressor housing (11), wherein the compressor housing (11) accommodates a compression chamber (23) for compressing a gas phase (GR) of a refrigerant; and an accumulator (16) for storing a liquid phase (LR) of the refrigerant, wherein the accumulator (16) is arranged within the compressor housing (11).
2. Compressor according to claim 1, wherein the compressor housing (11) encloses an accumulator (16) and an inner volume (17) accommodating a compression chamber (23), and wherein the accumulator (16) comprises a partition wall (18) separating the accumulator (16) from the inner volume (17).
3. Compressor according to claim 2, wherein the accumulator (16) is provided between the partition wall (18) and a bottom cap (14) of the compressor housing (11), and wherein the bottom cap (14) has an inlet structure (19) for sucking in a gas phase (GR) and a liquid phase (LR) of the refrigerant.
4. Compressor according to claim 3, wherein the accumulator (16) comprises a filter (21), the filter (21) being arranged downstream of the inlet structure (19) and within the compressor housing (11).
5. Compressor according to claim 4, wherein the filter (21) is cylindrical and wherein the filter (21) is plugged onto the inlet structure (19).
6. Compressor according to claim 4, wherein the filter (21) is plate-shaped and wherein the filter (21) is attached to an end of the inlet structure (19).
7. Compressor according to claim 6, wherein the inlet structure (19) comprises an expansion (27) and wherein the filter (21) is attached to an end of the expansion (27).
8. Compressor according to claim 4, wherein the filter (21) is plate-shaped, and wherein the filter (21) is attached to the compressor housing (11).
9. Compressor according to any of claims 4 to 8, wherein said filter (21) comprises a mesh.
10. Compressor according to any of claims 2-9, wherein the accumulator (16) comprises a retention tube (20) for retaining the liquid phase (LR) of the refrigerant in the accumulator (16).
11. Compressor according to claim 10, wherein the accumulator (16) comprises a cover (22) covering the retaining tube (20) for preventing the liquid phase (LR) of the refrigerant from entering the retaining tube (20) and for allowing the gaseous phase (GR) of the refrigerant to enter the retaining tube (20).
12. Compressor according to claim 11, wherein the detaining tube (20) is connected to a suction port (24) of the compressor (10).
13. Compressor according to claim 12, wherein the detaining tube (20) is arranged inside the compressor housing (11), wherein the detaining tube (20) is guided through the partition wall (18) by means of an outlet (26) of the accumulator (16), and wherein the outlet (26) is connected to a suction port (24) inside the compressor housing (11).
14. Compressor according to claim 12, wherein the detaining tube (20) is arranged at least partially outside the compressor housing (11), wherein the detaining tube (20) is guided through the compressor housing (11), and wherein the detaining tube (20) is connected to a suction port (24) outside the compressor housing (11).
15. A household appliance (1) comprising a compressor (10) according to any one of claims 1 to 14.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19382541 | 2019-06-26 | ||
| EP19382541.1 | 2019-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145434A true CN112145434A (en) | 2020-12-29 |
Family
ID=67180709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010586776.1A Pending CN112145434A (en) | 2019-06-26 | 2020-06-24 | Compressor and household appliance |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3757482B1 (en) |
| CN (1) | CN112145434A (en) |
| PL (1) | PL3757482T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220333601A1 (en) * | 2021-04-20 | 2022-10-20 | Lg Electronics Inc. | Accumulator for compressor and compressor with accumulator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194370A (en) * | 1976-08-13 | 1980-03-25 | Tecumseh Products Company | Accumulator for refrigeration system |
| KR20010002267U (en) * | 1998-12-08 | 2001-10-23 | 전주범 | Accumulator integrated rotary compressor with insulation |
| JP2005146987A (en) * | 2003-11-14 | 2005-06-09 | Sanyo Electric Co Ltd | Heat exchanger integral type horizontal compressor with built-in accumulator |
| CN2760282Y (en) * | 2004-12-22 | 2006-02-22 | 上海日立电器有限公司 | Liquid reservoir integrated air conditioner compressor |
| JP2007009789A (en) * | 2005-06-30 | 2007-01-18 | Denso Corp | Accumulator-integrated compressor and vapor-compression refrigerating system |
| CN102562598A (en) * | 2010-12-29 | 2012-07-11 | Lg电子株式会社 | Enclosed compressor |
| CN108412769A (en) * | 2018-05-15 | 2018-08-17 | 珠海格力电器股份有限公司 | Compressor assembly |
-
2020
- 2020-06-09 PL PL20179067.2T patent/PL3757482T3/en unknown
- 2020-06-09 EP EP20179067.2A patent/EP3757482B1/en active Active
- 2020-06-24 CN CN202010586776.1A patent/CN112145434A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4194370A (en) * | 1976-08-13 | 1980-03-25 | Tecumseh Products Company | Accumulator for refrigeration system |
| KR20010002267U (en) * | 1998-12-08 | 2001-10-23 | 전주범 | Accumulator integrated rotary compressor with insulation |
| JP2005146987A (en) * | 2003-11-14 | 2005-06-09 | Sanyo Electric Co Ltd | Heat exchanger integral type horizontal compressor with built-in accumulator |
| CN2760282Y (en) * | 2004-12-22 | 2006-02-22 | 上海日立电器有限公司 | Liquid reservoir integrated air conditioner compressor |
| JP2007009789A (en) * | 2005-06-30 | 2007-01-18 | Denso Corp | Accumulator-integrated compressor and vapor-compression refrigerating system |
| CN102562598A (en) * | 2010-12-29 | 2012-07-11 | Lg电子株式会社 | Enclosed compressor |
| CN108412769A (en) * | 2018-05-15 | 2018-08-17 | 珠海格力电器股份有限公司 | Compressor assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220333601A1 (en) * | 2021-04-20 | 2022-10-20 | Lg Electronics Inc. | Accumulator for compressor and compressor with accumulator |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3757482B1 (en) | 2022-08-24 |
| PL3757482T3 (en) | 2022-12-05 |
| EP3757482A1 (en) | 2020-12-30 |
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