CN107061268B - Scroll compressor and refrigerant supplementing structure thereof - Google Patents
Scroll compressor and refrigerant supplementing structure thereof Download PDFInfo
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- CN107061268B CN107061268B CN201710208354.9A CN201710208354A CN107061268B CN 107061268 B CN107061268 B CN 107061268B CN 201710208354 A CN201710208354 A CN 201710208354A CN 107061268 B CN107061268 B CN 107061268B
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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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
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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
- F25B45/00—Arrangements for charging or discharging refrigerant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to a refrigerant supplementing structure of a scroll compressor, which comprises: the fixed scroll is provided with an injection hole communicated with the compression cavity and a refrigerant diversion cavity communicated with the injection hole; the pipeline installation part is communicated with the refrigerant diversion cavity; and the refrigerant pipeline is sleeved with the pipeline installation part and is in sliding sealing fit with the compressor in the axial direction. The refrigerant supplementing structure not only can supplement refrigerants, but also is suitable for a scroll compressor with a fixed scroll and axial floating displacement, and is simple in structure and convenient to assemble. The invention also relates to a scroll compressor adopting the refrigerant supplementing structure.
Description
Technical Field
The invention relates to the technical field of compressor production, in particular to a scroll compressor and a refrigerant supplementing structure thereof.
Background
The scroll compressor mainly comprises a sealed shell, a movable scroll, a fixed scroll, an anti-rotation mechanism, an upper bracket, a lower bracket, a crankshaft, a motor and other parts. The movable and static vortex disks are eccentrically and oppositely arranged on the upper bracket with a 180-degree difference, and the movable and static vortex disks are meshed to form a series of crescent fluid cavities. The fixed scroll is fixed on the upper support, a bearing at the lower end of the movable scroll is matched with a crankshaft, and the crankshaft is matched with a motor rotor. The crankshaft drives the movable vortex plate to revolve around the fixed vortex plate in certain radius, so that the gas will move to the center continuously and the pressure will rise continuously until it is communicated with the central exhaust hole and exhausted continuously.
Scroll compressor is arranged in air conditioning system, and when evaporation temperature is lower and under the higher operating mode of condensation temperature, high pressure ratio operating mode or the poor operating mode of high pressure (if carry out super low temperature heating in northern winter), the condition that compression ratio is too big or the pressure differential is too big can appear in scroll compressor, these circumstances can lead to heating capacity not enough and exhaust temperature to rise, high exhaust temperature can lead to freezing oil degradation and then make the scroll wearing and tearing lead to becoming invalid, scroll compressor's work efficiency and reliability consequently reduce thereupon.
At present, the method for solving the problems mainly comprises the steps of injecting refrigerant liquid or refrigerant gas into a compression cavity of a scroll compressor, wherein a fixed scroll plate is required to be provided with an injection hole communicated with the compression cavity, and then the refrigerant is supplemented to the scroll compressor through an external pipeline connected with the injection hole.
Disclosure of Invention
One of the objectives of the present invention is to provide a refrigerant supplement structure of a scroll compressor, so as to implement refrigerant supplement to a compression cavity of the scroll compressor on the one hand, and enable the refrigerant supplement structure to adapt to axial floating displacement of a fixed scroll on the other hand on the premise of convenient arrangement.
Another objective of the present invention is to provide a scroll compressor with the above refrigerant supplement structure.
In order to achieve the above object, the present invention provides a refrigerant supplement structure of a scroll compressor, including:
the fixed scroll is provided with an injection hole communicated with the compression cavity and a refrigerant diversion cavity communicated with the injection hole;
the pipeline installation part is communicated with the refrigerant diversion cavity;
and the refrigerant pipeline is sleeved with the pipeline installation part and is in sliding sealing fit with the compressor in the axial direction.
Preferably, the fixed scroll further comprises a mounting seat which is arranged on the side surface of the fixed scroll in a sealing manner, the pipeline mounting part is an axial cavity which is arranged in the mounting seat, the end part of the refrigerant pipeline is embedded into the axial cavity in a sliding manner, and at least one sealing ring is arranged between the refrigerant pipeline and the axial cavity.
Preferably, the refrigerant diversion cavity is a transverse hole cavity formed in the fixed scroll, and a transverse communication cavity communicating the transverse hole cavity with the axial cavity is further formed in the mounting seat.
Preferably, the transverse communication cavity is further provided with a pressure opening valve for preventing the refrigerant from reversely flowing into the refrigerant pipeline.
Preferably, the end that horizontal intercommunication chamber meets with horizontal vestibule is the valve body installation cavity, the pressure opens the valve and embeds in the valve body installation cavity, and the pressure opens the valve and includes:
the valve plate is used for plugging the transverse communication cavity;
one end of the spring is abutted against the side face of the fixed scroll, and the other end of the spring presses the valve plate to the end part of the transverse communication cavity.
Preferably, the scroll compressor further comprises an installation seat arranged on the side surface of the fixed scroll in a sealing mode, the installation seat forms the pipeline installation part, the installation seat is embedded into the refrigerant pipeline in a sliding mode, and at least one sealing ring is arranged between the installation seat and the refrigerant pipeline.
Preferably, the mounting seat is connected to the fixed scroll by bolts or screws, and a sealing gasket is arranged between the mounting seat and the fixed scroll.
Preferably, the refrigerant pipeline is fixedly connected to a shell of the compressor.
Preferably, the pipeline installation part is an axial cavity arranged on the fixed scroll, the end part of the refrigerant pipeline is embedded into the axial cavity in a sliding manner, and at least one sealing ring is arranged between the refrigerant pipeline and the axial cavity.
Preferably, the scroll compressor further comprises a pressure-opening valve which is built in the fixed scroll and is used for preventing the refrigerant from reversely flowing into the refrigerant pipeline.
Preferably, the pressure-open valve is disposed at a connection position of the injection hole and the refrigerant guide chamber, and the pressure-open valve includes:
the valve plate is used for plugging the refrigerant diversion cavity;
one end of the spring is abutted against the fixed scroll, and the other end of the spring compresses the valve plate on the end part of the refrigerant diversion cavity.
Preferably, the compressor further comprises a shell connecting seat fixedly arranged on the shell of the compressor and connected with an external pipeline, the other end of the refrigerant pipeline is provided with a mounting plate, and the mounting plate is fixedly connected with the shell connecting seat through a screw or a bolt.
Preferably, the compressor further comprises a shell connecting seat fixedly arranged on the shell of the compressor and connected with an external pipeline, the axial cavity is also formed in the shell connecting seat, the refrigerant pipeline is U-shaped, the other end of the refrigerant pipeline is movably embedded into the axial cavity of the shell connecting seat, and at least one sealing ring is arranged between the refrigerant pipeline and the axial cavity of the shell connecting seat.
Preferably, the fixed scroll further comprises a limiting plate fixedly connected to the fixed scroll, a limiting protrusion is arranged at the end of the refrigerant pipeline embedded in the axial cavity, and a limiting hole allowing the refrigerant pipeline to pass through and preventing the limiting protrusion from coming off is formed in the limiting plate.
The scroll compressor disclosed by the invention is provided with a refrigerant supplementing structure, and the refrigerant supplementing structure is the refrigerant supplementing structure disclosed in any one of the above.
It can be seen that the fixed scroll plate is provided with an injection hole communicated with the compression cavity, the injection hole is communicated with the refrigerant diversion cavity, the pipeline installation part is connected with a refrigerant pipeline for providing refrigerant to the refrigerant diversion cavity, when the evaporation temperature is lower and the condensation temperature is higher, the high pressure ratio working condition or the high pressure difference working condition, the refrigerant pipeline can achieve the purposes of reducing the exhaust temperature of the compressor and increasing the exhaust amount of the compressor by supplementing the refrigerant liquid or gas to the refrigerant diversion cavity, thereby improving the working efficiency of the scroll compressor and ensuring the working reliability of the scroll compressor, in addition, as the refrigerant pipeline is sleeved with the pipeline installation part, and the refrigerant pipeline and the pipeline are in sliding sealing fit upwards in the shaft of the compressor, the refrigerant pipeline is adaptive to the axial floating displacement of the fixed scroll plate while avoiding the leakage of the refrigerant, the, the assembly is convenient.
Drawings
FIG. 1 is a schematic overall sectional view of a scroll compressor disclosed in one embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of a refrigerant guide chamber of the fixed scroll disclosed in the present invention;
FIG. 4 is a perspective view of a mounting base according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a refrigerant pipeline disclosed in the first embodiment of the present invention;
fig. 6 is a schematic view of a connection structure between a refrigerant pipeline and a fixed scroll according to a second embodiment of the present invention;
fig. 7 is a schematic view of a connection structure between a refrigerant pipeline and a fixed scroll according to a third embodiment of the present invention;
fig. 8 is a schematic structural view of a refrigerant pipeline disclosed in the third embodiment of the present invention;
fig. 9 is a schematic view of a connection structure between a refrigerant pipeline and a fixed scroll according to the fourth embodiment of the present invention;
fig. 10 is a schematic structural diagram of a limiting plate according to the present disclosure;
fig. 11 is a schematic structural diagram of another limiting plate disclosed in the present invention.
Wherein, 1 is static vortex dish, 2 is moving vortex dish, 3 is the jet orifice, 4 are refrigerant water conservancy diversion chamber, 5 are the mount pad, 6 are the refrigerant pipeline, 7 are the axial cavity, 8 are horizontal intercommunication chamber, 9 are the valve body installation cavity, 10 are the valve block, 11 are the spring, 12 are the sealing washer, 13 are the casing connecting seat, 14 are the mounting panel, 15 are sealed the pad, 16 are the casing, 17 are the limiting plate, 18 are spacing holes, 61 are the grafting end.
Detailed Description
One of the cores of the invention is to provide a refrigerant supplement structure of a scroll compressor, so that the refrigerant supplement can be realized for a compression cavity of the scroll compressor on one hand, and the refrigerant supplement structure can adapt to the axial floating displacement of a fixed scroll on the premise of convenient arrangement on the other hand.
The invention also provides a scroll compressor with the refrigerant supplementing structure.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1 to 5, in the present embodiment, a main structure of the scroll compressor is the same as a main structure in the prior art, and a core improvement point in the technical solution disclosed in the present embodiment is that a refrigerant supplement structure for supplementing a refrigerant to the scroll compressor is provided, the refrigerant supplement structure specifically includes a fixed scroll 1, a pipeline installation portion, and a refrigerant pipeline 6, as shown in fig. 2, an injection hole 3 communicating with a compression cavity and a refrigerant diversion cavity 4 communicating with the injection hole 3 are provided on a scroll tooth side of the fixed scroll 1, and considering convenience of design and processing, the injection hole 3 is an axial injection hole, and the refrigerant diversion cavity 4 is provided along a transverse direction. In this embodiment, the refrigerant guiding cavity 4 extends to a side surface of the fixed scroll 1, in order to form a pipeline installation portion, the embodiment further includes an installation seat 5, the installation seat 5 is connected to the side surface of the fixed scroll 1 in a sealing manner, the pipeline installation portion is specifically an axial cavity 7 formed in the installation seat 5, as shown in fig. 2 and 4, the refrigerant pipeline 6 is fixedly arranged on a shell 16 of the compressor, and an end portion of the refrigerant pipeline is an insertion end, as shown in fig. 5, the insertion end is slidably embedded into the axial cavity 7, in order to ensure sealing between the refrigerant pipeline 6 and the axial cavity 7, at least one sealing ring 12 is arranged between the refrigerant pipeline 6 and the axial cavity 7, so as to achieve sliding sealing fit between the refrigerant pipeline 6 and the axial cavity 7, and the structures shown in fig. 2 and 5, and the insertion end of the refrigerant pipeline 6 is provided with two sealing rings 12 distributed at intervals.
The axial cavity 7 in the mounting seat 5 needs to be communicated with the refrigerant diversion cavity 4 to convey the refrigerant entering from the refrigerant pipeline 6 to the injection hole 3, so a communication cavity needs to be arranged in the mounting seat 5, and the convenience of design and manufacture is also considered, wherein the communication cavity in the embodiment is a transverse communication cavity 8 with one end connected with the refrigerant diversion cavity 4 and the other end connected with the axial cavity 7, as shown in fig. 2 and 4.
The mount 5 is detachably connected to a side surface of the fixed scroll 1 by a bolt or a screw, and a seal gasket is provided between the mount 5 and the fixed scroll 1 in order to ensure sealing between the mount 5 and the fixed scroll 1.
In the embodiment, the fixed scroll 1 is provided with the injection hole 3 communicated with the compression cavity, the injection hole 3 is communicated with the refrigerant diversion cavity 4, the pipeline installation part is connected with the refrigerant pipeline 6 for providing refrigerant to the refrigerant diversion cavity 4, when the evaporation temperature is lower and the condensation temperature is higher, the high pressure ratio working condition or the high pressure difference working condition, the refrigerant pipeline 6 can achieve the purposes of reducing the exhaust temperature of the compressor and increasing the exhaust amount of the compressor by supplementing the refrigerant liquid or gas to the refrigerant diversion cavity 4, thereby improving the working efficiency of the scroll compressor and ensuring the working reliability of the scroll compressor, in addition, as the refrigerant pipeline 6 is sleeved with the pipeline installation part and the two are in sliding sealing fit in the axial direction of the compressor, the refrigerant pipeline 6 is adaptive to the axial floating displacement of the fixed scroll 1 while the refrigerant leakage is avoided, the structure is simple, the installation is convenient, and the technical personnel in the field can easily understand that in order to achieve the purpose of realizing the axial sliding between the refrigerant pipeline and the pipeline installation part, the pipeline installation part is arranged along the axial direction of the compressor in a simpler arrangement mode.
It is understood that during the refrigerant supplement process, the refrigerant in the compressor needs to be prevented from flowing back into the refrigerant pipeline 6, therefore, in order to optimize the above scheme, a pressure opening valve for preventing the refrigerant from flowing back into the refrigerant pipeline 6 can be further arranged in the transverse communication cavity 8, specifically, as shown in fig. 2, one end of the transverse communication cavity 8 connected with the transverse hole cavity (refrigerant diversion cavity 4) is a valve body installation cavity 9 with a large space, the pressure opening valve is embedded in the valve body installation cavity 9, and comprises a valve plate 10 and a spring 11, the valve plate 10 is used for plugging the transverse communication cavity 8, one end of the spring 11 is abutted against the side surface of the fixed scroll 1, the other end presses the valve plate 10 against the end of the transverse communication cavity 8, as can be known by referring to fig. 2, the pressure opening valve can be opened when the pressure in the compressor is smaller than the pressure in the refrigerant pipeline 6, and the pressure difference is larger than the elastic, and the refrigerant in the refrigerant pipeline 6 enters the compressor cavity at this moment, and in addition, the pressure opening valve can be kept in a closed state under the condition, so that the refrigerant pipeline 6 can supplement the refrigerant in the compression cavity in time when the pressure difference reaches a preset value, and the aim of preventing the refrigerant from flowing back to the refrigerant pipeline 6 is also fulfilled.
Example 2
Referring to fig. 6, the technical solution disclosed in this embodiment is different from embodiment 1 in that an axial cavity 7 forming a pipeline installation part is directly formed in the fixed scroll 1, during a machining process, a thread is tapped at an end of the refrigerant diversion cavity 4, an outer end of the refrigerant diversion cavity 4 is sealed by a screw, and the axial cavity 7 is directly communicated with the refrigerant diversion cavity 4; a pressure-opening valve is provided in the fixed scroll 1 at a connection of the injection hole 3 and the refrigerant guide chamber 4, and a spring 11 of the pressure-opening valve is used to press the valve sheet 10 against an end of the refrigerant guide chamber 4, as shown in fig. 6.
Example 3
Referring to fig. 7 and 8, the present embodiment is different from embodiment 2 in that the axial cavity 7 in embodiment 2 is formed at the lower end of the fixed scroll 1, the axial cavity 7 in this embodiment is formed at the upper end of the fixed scroll 1, a shell connecting seat 13 is disposed on a shell of the compressor, the shell connecting seat 13 is connected to an external pipeline outside the compressor to provide a refrigerant to the refrigerant pipeline 6, one end of the refrigerant pipeline 6 is slidably and hermetically embedded in the axial cavity 7, and the other end of the refrigerant pipeline is fixedly connected to the shell connecting seat 13, specifically, an installation plate 14 is disposed at one end of the refrigerant pipeline 6, which is matched with the shell connecting seat 13, the installation plate 14 is connected to the shell connecting seat 13 through a screw or a bolt, and further, a sealing gasket 15 is disposed between the installation plate 14 and the shell connecting seat 13.
Example 4
Referring to fig. 9, the difference between the present embodiment and embodiment 3 lies in the difference of the housing connecting seat 13, in the present embodiment, an axial cavity 7 is also formed in the housing connecting seat 13, meanwhile, the refrigerant pipeline 6 is designed into a U shape, one end of the refrigerant pipeline 6, which is used for being matched with the housing connecting seat 13, is also embedded in the axial cavity 7 of the housing connecting seat 13, and at least one sealing ring 12 is also disposed between the refrigerant pipeline 6 and the circumferential cavity of the housing connecting seat 13.
Furthermore, a limiting plate 17 can be further arranged on the fixed scroll 1 to prevent the refrigerant pipeline 6 from being separated from the fixed scroll 1, the limiting plate 17 is arranged on the fixed scroll 1 through a fixing part such as a bolt or a screw, a limiting protrusion is arranged at the end part of the refrigerant pipeline 6 embedded into the axial cavity 7, and a limiting hole 18 which allows the refrigerant pipeline 6 to pass through and prevents the limiting protrusion from being separated is arranged on the limiting plate 17. The position-limiting hole 18 may be a semi-open hole, as shown in fig. 10, or a closed hole, as shown in fig. 11, as long as it can perform the position-limiting function.
Example 5
The present embodiment is substantially the same as embodiment 1, and is different from embodiment 1 in that the mounting seat 5 itself forms a pipe mounting portion, the mounting seat 5 is slidably embedded in the refrigerant pipe 6, and at least one sealing ring 12 is disposed between the mounting seat 5 and the refrigerant pipe 6, it can be seen that in embodiment 1, the refrigerant pipe 6 is sleeved in the mounting seat 5, and in this embodiment, the mounting seat 5 is sleeved in the refrigerant pipe 6.
The invention also discloses a scroll compressor which is provided with a refrigerant supplementing structure, and the refrigerant supplementing structure is the refrigerant supplementing structure disclosed in any one of the embodiments.
Because the refrigerant supplementing structure is adopted, the scroll compressor has the corresponding technical advantages of the refrigerant supplementing structure, and the details are not repeated herein.
The scroll compressor and the refrigerant supplementing structure thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (14)
1. A refrigerant supplement structure of a scroll compressor, comprising:
the fixed scroll (1) is provided with an injection hole (3) communicated with the compression cavity and a refrigerant diversion cavity (4) communicated with the injection hole (3);
the pipeline installation part is communicated with the refrigerant diversion cavity (4);
the refrigerant pipeline (6) is used for providing refrigerant for the refrigerant diversion cavity (4), the refrigerant pipeline (6) is sleeved with the pipeline installation part, and the refrigerant pipeline (6) and the pipeline installation part are in sliding sealing fit in the axial direction of the compressor;
the refrigerant pipeline (6) is fixedly connected to a shell (16) of the compressor.
2. The refrigerant supplementing structure according to claim 1, further comprising a mounting seat (5) hermetically disposed on a side surface of the fixed scroll (1), wherein the pipe mounting portion is an axial cavity (7) opened in the mounting seat (5), an end portion of the refrigerant pipe (6) is slidably embedded in the axial cavity (7), and at least one sealing ring (12) is disposed between the refrigerant pipe (6) and the axial cavity (7).
3. The refrigerant supplementing structure according to claim 2, wherein the refrigerant guiding cavity (4) is a transverse hole cavity formed in the fixed scroll (1), and a transverse communicating cavity (8) communicating the transverse hole cavity with the axial cavity (7) is further formed in the mounting seat (5).
4. The refrigerant supplement structure according to claim 3, wherein a pressure opening valve for preventing the refrigerant from flowing back into the refrigerant pipeline (6) is further disposed in the transverse communication cavity (8).
5. The refrigerant supplementing structure according to claim 4, wherein an end of the transverse communicating chamber (8) connected to the transverse bore is a valve body mounting chamber (9), the pressure-opening valve is embedded in the valve body mounting chamber (9), and the pressure-opening valve includes:
a valve plate (10) for plugging the transverse communication cavity (8);
one end of the fixed scroll is abutted against the side surface of the fixed scroll (1), and the other end of the fixed scroll compresses the valve plate (10) against a spring (11) at the end part of the transverse communication cavity (8).
6. The refrigerant supplementing structure according to claim 1, further comprising a mounting seat (5) hermetically provided on a side surface of the fixed scroll (1), wherein the mounting seat (5) itself forms the pipe mounting portion, the mounting seat (5) is slidably embedded in the refrigerant pipe (6), and at least one sealing ring (12) is provided between the mounting seat (5) and the refrigerant pipe (6).
7. The refrigerant supplementing structure according to any one of claims 2 to 6, wherein the mount base (5) is connected to the fixed scroll (1) by a bolt or a screw, and a seal gasket is provided between the mount base (5) and the fixed scroll (1).
8. The refrigerant supplementing structure according to claim 1, wherein the pipe mounting portion is an axial cavity (7) provided in the fixed scroll (1), an end portion of the refrigerant pipe (6) is slidably inserted into the axial cavity (7), and at least one seal ring (12) is provided between the refrigerant pipe (6) and the axial cavity (7).
9. The refrigerant supplement structure according to claim 8, further comprising a pressure-opening valve built in the fixed scroll (1) and preventing a refrigerant from flowing backward into the refrigerant line (6).
10. The refrigerant supplement structure according to claim 9, wherein the pressure-open valve is disposed at a connection of the injection hole (3) and the refrigerant guide chamber (4), and the pressure-open valve comprises:
a valve plate (10) for plugging the refrigerant diversion cavity (4);
one end of the spring (11) is abutted against the fixed scroll (1), and the other end of the spring compresses the valve plate (10) on the end part of the refrigerant diversion cavity (4).
11. The refrigerant supplementing structure according to claim 8, further comprising a casing connecting seat (13) fixedly disposed on a casing of the compressor and connected to an external pipeline, wherein a mounting plate (14) is disposed at the other end of the refrigerant pipeline (6), and the mounting plate (14) is fixedly connected to the casing connecting seat (13) by a screw or a bolt.
12. The refrigerant supplementing structure according to claim 8, further comprising a casing connecting seat (13) fixedly arranged on a casing of the compressor and connected with an external pipeline, wherein the axial cavity (7) is also formed in the casing connecting seat (13), the refrigerant pipeline (6) is U-shaped, the other end of the refrigerant pipeline (6) is slidably embedded into the axial cavity (7) of the casing connecting seat (13), and at least one sealing ring (12) is arranged between the refrigerant pipeline (6) and the axial cavity (7) of the casing connecting seat (13).
13. The refrigerant supplementing structure according to claim 12, further comprising a limiting plate (17) fixedly connected to the fixed scroll (1), wherein a limiting protrusion is disposed at an end of the refrigerant pipeline (6) embedded in the axial cavity (7), and a limiting hole (18) allowing the refrigerant pipeline (6) to pass through and preventing the limiting protrusion from coming off is disposed on the limiting plate (17).
14. A scroll compressor provided with a refrigerant-replenishing structure, wherein the refrigerant-replenishing structure is as claimed in any one of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710208354.9A CN107061268B (en) | 2017-03-31 | 2017-03-31 | Scroll compressor and refrigerant supplementing structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710208354.9A CN107061268B (en) | 2017-03-31 | 2017-03-31 | Scroll compressor and refrigerant supplementing structure thereof |
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| CN107061268A CN107061268A (en) | 2017-08-18 |
| CN107061268B true CN107061268B (en) | 2020-02-07 |
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| CN109779908A (en) * | 2019-02-20 | 2019-05-21 | 珠海格力节能环保制冷技术研究中心有限公司 | The fluid ejection apparatus of flexible connection, screw compressor and air conditioner with the device |
| WO2021038738A1 (en) * | 2019-08-28 | 2021-03-04 | 三菱電機株式会社 | Scroll compressor |
| CN111963435B (en) * | 2020-07-24 | 2022-08-05 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
| CN111963433B (en) * | 2020-07-24 | 2022-08-05 | 珠海格力电器股份有限公司 | Compressor and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3509196B2 (en) * | 1994-07-08 | 2004-03-22 | ダイキン工業株式会社 | Scroll compressor |
| CN1289821C (en) * | 2001-12-17 | 2006-12-13 | 乐金电子(天津)电器有限公司 | Safety device of vortex compressor |
| CN101761476B (en) * | 2009-12-22 | 2011-07-27 | 大连三洋压缩机有限公司 | Scroll compressor |
| CN102052312B (en) * | 2010-12-31 | 2013-08-14 | 丹佛斯（天津）有限公司 | Scroll compressor |
| CN202690457U (en) * | 2011-12-15 | 2013-01-23 | 上海日立电器有限公司 | Jet pipe device for scroll compressor |
| CN206636780U (en) * | 2017-03-31 | 2017-11-14 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of screw compressor and its refrigerant supplementing structure |
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