CN1815028A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN1815028A CN1815028A CN 200510093587 CN200510093587A CN1815028A CN 1815028 A CN1815028 A CN 1815028A CN 200510093587 CN200510093587 CN 200510093587 CN 200510093587 A CN200510093587 A CN 200510093587A CN 1815028 A CN1815028 A CN 1815028A
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- Prior art keywords
- pressure regulator
- pressure
- compressor
- capsul
- inlet opening
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Abstract
To prevent interruption of operation of a compressor due to excessive rise of delivery pressure by keeping delivery pressure at set pressure or less by operation of a pressure regulation device in a rotary compressor. A rotary compressor provided with a hermetic vessel, a compression device installed in the hermetic vessel and including a delivery port communicating to an inside of the hermetic vessel and a suction port for sucking external gas into the hermetic vessel, a pressure regulating passage formed to connect the suction port and a delivery side of the hermetic vessel, and a pressure regulating valve normally closing the pressure regulating passage and opening the pressure regulating passage when pressure in the delivery side is set pressure or higher.
Description
Technical field
The present invention relates to a kind of rotary compressor, more particularly, relate to and a kind ofly can prevent that the rising owing to discharge pressure from causing the rotary compressor of overload.
Background technique
The Korean Utility Model registration of publishing on March 20th, 1999 discloses No. 136112 and discloses a kind of rotary compressor with overload detection.When the discharge pressure of the compressor that causes overheat of compressor excessively rose, overload detection can block input electric power with the protection compressor.
Although rotary compressor is normally kept discharge pressure at about 20kg/cm
2Rank, if but the temperature of outside air rises, discharge pressure can rise to 26 once in a while to 32kg/cm
2When the excessive rising owing to discharge pressure caused rotary compressor overheated, overload detection blocked electric power, and the running of rotary compressor is stopped.
But,, therefore use the running that heats refrigerated air-conditioning system of rotary compressor desirably to be stopped by non-because when causing overheat of compressor by too high discharge pressure, the electric power that overload detection blocks input stops the operation of rotary compressor.
Promptly, when the running that causes this compressor owing to rotary compressor is overheated stops, equally, use the running that heats refrigerated air-conditioning system of this rotary compressor to be stopped, for air-conditioning system, after overheated compressor cools down, just might normally carry out the function that heats refrigeration.
Summary of the invention
Therefore, for the function of improving above-mentioned traditional rotary compressor has proposed the present invention, an aspect of of the present present invention provides a kind of rotary compressor, and this rotary compressor can maintain discharge pressure the numerical value that is lower than preset pressure, thereby prevents the interruption owing to the compressor operation that causes of overload.
Other aspect of the present invention and/or advantage will be partly articulated in the following description, and another part is clearly from describe, and perhaps understands by enforcement of the present invention.
According to an aspect of the present invention, the invention provides a kind of rotary compressor, comprising: capsul; Compression unit is installed in the capsul, has exit orifice communicating with the inside of capsul, and has the inlet opening so that extraneous gas is drawn in the capsul.This rotary compressor also comprises: pressure regulator channel is used for making the inlet opening to communicate with the emission quotas of capsul; Pressure regulator valve is used for common closing pressure to regulate passage, and opens pressure regulator channel during greater than preset pressure when the pressure of emission quotas.
Compression unit can comprise having the frame that forms pressing chamber therein, and this pressing chamber communicates with exit orifice and inlet opening, and pressure regulator channel can form in described frame, so that the inlet opening communicates with the inside of capsul.
Pressure regulator valve can be the safety check that is installed in the pressure regulator channel, is used for only along a direction gas being directed to the inlet opening from emission quotas.
Pressure regulator valve can comprise: valve body is pressed onto in the pressure regulator channel, and limits rank shape passage in inside; Open reciprocally is installed in the valve body, to open or close the rank shape passage of valve body; Spring is installed in and is used for pushing open in the valve body, comes closing passage with this.
Open can have: be used for opening or closing the spherical ON/OFF ball of described passage, and be used for pushing the push strut of ON/OFF ball between ON/OFF ball and spring.
Description of drawings
By below in conjunction with the description of accompanying drawing to exemplary embodiment, these and/or other aspect of the present invention and advantage will become clear and be easier to and understand, wherein:
Fig. 1 is the longitudinal sectional view of the internal structure of rotary compressor of the present invention;
Fig. 2 is the sectional view along the line II-II intercepting of Fig. 1;
Fig. 3 is the detailed view of the round A of Fig. 1, shows the closed condition of pressure regulator valve;
Fig. 4 is the detailed view of the round A of Fig. 1, shows the open mode of pressure regulator valve;
Fig. 5 is the sectional view along the line V-V intercepting of Fig. 3.
Embodiment
To describe exemplary, non-limiting example of the present invention now in detail, its example represents that in the accompanying drawings wherein, same numeral is represented components identical all the time.Embodiment is described below with reference to the accompanying drawings to explain the present invention.
Fig. 1 is the longitudinal sectional view of expression according to the internal structure of rotary compressor of the present invention.As shown in Figure 1, rotary compressor of the present invention comprises: capsul 10; Motor unit 20, the top that is installed in capsul 10 is to produce rotating force; Compression unit 30 is installed in the bottom of capsul 10 and is connected on the motor unit 20 through running shaft 21.
Fig. 2 is the sectional view along the line II-II intercepting of Fig. 1.As illustrated in fig. 1 and 2, compression unit 30 has frame, and this frame comprises: cylindrical shell 32 is formed centrally tubular pressing chamber 31 therein; Upper flange 33 and lower flange 34, the upper and lower surface that is connected respectively to cylindrical shell 32 is to cover the upper and lower opening of cylindrical shell 32.Upper flange 33 and lower flange 34 are respectively arranged with upper and lower axle support section 35 and 36 with supporting rotating shaft 21.A plurality of clamping bolts 37 vertically pass all upper and lower flanges 33 and 34 and cylindrical shell 32 mutually combine to make flange and cylindrical shell securely.
Be formed into oral pore 42 and exit orifice 43 with blade 40 position adjacent by cylindrical shell 32, respectively the extraneous gas refrigeration agent is drawn into 31 li of pressing chambers and compressed refrigeration agent is discharged into outside the pressing chamber 31.Refrigerant suction pipe 11 is connected to inlet opening 42, so that low-pressure refrigerant gas is drawn into inlet opening 42 from the vaporizer of conventional chiller.
In the running of rotary compressor, when eccentric component 38 is used to when the rotating force of motor unit 20 rotates in pressing chamber 31, annular piston 39 is eccentric rotation in pressing chamber 31, make gas refrigerant be drawn into the pressing chamber 31, thereby be compressed and be discharged into exit orifice 43 from inlet opening 42.Among Fig. 1, label 12 expressions are installed in the accumulator of a certain position of refrigerant suction pipe 11; Label 13 expression escape cocks are to open or close exit orifice 43; Label 14 expression discharge pipes are outside leading compressed refrigeration agent from capsul 10.
Rotary compressor of the present invention also comprises: power splicing ear 51, and the top that is installed in capsul 10 provides electric power to give motor unit 20; Antioverloading unit 52, the top that also is installed in capsul 10 avoids excess current or overload running with the protection rotary compressor.In addition, also provide pressure regulator, with the internal pressure of control rotary compressor.The discharge pressure of pressure regulator restriction rotary compressor makes and is no more than preset pressure, stops suddenly with the running that prevents compressor in the operation process of antioverloading unit 52.
If antioverloading unit 52 detects the excess current that produces when the starting of compressor, or detect when since high discharge pressure when causing overheat of compressor temperature rise to above predefined value, then antioverloading unit 52 blocks the supply of electric power with the protection compressor.Here, antioverloading unit 52 is designed to restart later at the fixed time the electric power supply.By antioverloading of the present invention unit 52, though pressure regulator make mistakes or compressor when no matter the operation of pressure regulator is still transshipped, electric power is supplied with and is blocked with the protection compressor.
Pass the upper flange 33 and the cylindrical shell 32 of compression unit 30, pressure regulator is installed in and inlet opening 42 position adjacent.Pressure regulator comprises: pressure regulator channel 55, and pass upper flange 33 and cylindrical shell 32 and form, with the gas refrigerant in the capsul 10, especially compressed gas refrigerant is directed to inlet opening 42; Pressure regulator valve 60 is installed in the pressure regulator channel 55, to open or close pressure regulator channel 55.
Open 62 is made up of the push strut 62b that is used for opening or closing the spherical ON/OFF ball 62a of passage and is used for pushing ON/OFF ball 62a between ON/OFF ball 62a and spring 63.In this case, spring 63 is extruding open 62 usually, thus ball 62a and the inlet opening 42 relative rank shape passages that move up valve body 61.Simultaneously,, push strut 62b is arranged to have vertical rise planar section 62c, with the gas flow between the interior perimeter surface that limits push strut 62b and valve body 61 with reference to figure 5.
Again with reference to figure 3, when the inside discharge pressure according to the capsul 10 of compression unit 30 operations drops to when being lower than preset pressure, the rank shape passage of valve body 61 is held closed condition by ON/OFF ball 62a.That is, when discharge pressure during less than preset pressure, thereby ON/OFF ball 62a is subjected to the extruding closing passage of spring 63.Here, the preset pressure of emission quotas promptly determines the factor of the opening operation of pressure regulator valve 60, is determined by the elasticity of spring 63.
On the contrary, rise to above preset pressure, promptly when the inside of capsul 10 discharge pressure, when discharge pressure is bigger than the elasticity of spring 63, as shown in Figure 4, thereby ON/OFF ball 62a is pushed away the rank shape passage of opening valve body 61 downwards by high discharge pressure, thereby opens pressure regulator channel 55.As a result, gas refrigerant is directed into inlet opening 42 from the emission quotas of compressor.In this manner, the inside discharge pressure of capsul 10 can be remained below the numerical value of predetermined pressure continuously.
The preset pressure of the emission quotas of the opening operation of decision pressure regulator valve 60 is set at the scope of the operating pressure that is lower than antioverloading unit 52.Like this, pressure regulator valve 60 was opened pressure regulator channel 55 before 52 operations of antioverloading unit.Detect the opening operation of carrying out pressure regulator valve 60 before the overload of compressor in antioverloading unit 52, prevent that effectively discharge pressure from excessively rising, and prevent that therefore the operation of compressor is because overload and being stopped suddenly.That is, do not have because the risk of the outage of excess pressure rising causing compressor.
From top description as can be known, the invention provides a kind of rotary compressor, it has pressure regulator, is lower than preset pressure with the discharge pressure of keeping compressor, thereby prevents because the rising of discharge pressure causes that the operation of compressor is stopped suddenly.
Though show and described exemplary embodiment of the present invention, but it should be appreciated by those skilled in the art, under the situation that does not break away from principle of the present invention and spirit, can change embodiment, scope of the present invention is limited by claim and equivalent thereof.
The present invention requires the preference of the korean patent application submitted in Korea S Department of Intellectual Property on February 5th, 2005 2005-11027 number, and this application is disclosed in this for reference.
Claims (5)
1. rotary compressor comprises:
Capsul,
Compression unit is installed in the described capsul, has exit orifice communicating with the inside of described capsul, and has the inlet opening extraneous gas being drawn in the described capsul,
Pressure regulator channel is used for making described inlet opening to communicate with the emission quotas of described capsul;
Pressure regulator valve is used for cutting out usually described pressure regulator channel, and opens described pressure regulator channel during greater than preset pressure when the pressure of described emission quotas.
2. compressor as claimed in claim 1, wherein:
Compression unit comprises having the frame that forms pressing chamber therein, and described pressing chamber communicates with described inlet opening and exit orifice;
Pressure regulator channel forms in described frame, so that described inlet opening communicates with the inside of described capsul.
3. compressor as claimed in claim 2, wherein, described pressure regulator valve is mounted in the safety check in the pressure regulator channel, is used for only along a direction gas being directed to the inlet opening from described emission quotas.
4. compressor as claimed in claim 2, wherein, described pressure regulator valve comprises:
Valve body, by interference be assembled in the described pressure regulator channel, and limit rank shape passage in inside;
Open reciprocally is installed in the described valve body, to open or close the described rank shape passage of described valve body;
Spring is installed in and is used for pushing open in the valve body, closes described passage with this.
5. compressor as claimed in claim 4, wherein, described open has the spherical ON/OFF ball that is used for opening or closing described passage, and is used for pushing the push strut of described ON/OFF ball between described ON/OFF ball and described spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050011027 | 2005-02-05 | ||
| KR20050011027 | 2005-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1815028A true CN1815028A (en) | 2006-08-09 |
Family
ID=36907355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510093587 Pending CN1815028A (en) | 2005-02-05 | 2005-08-26 | Rotary compressor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2006214431A (en) |
| CN (1) | CN1815028A (en) |
| TW (1) | TW200628702A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412789A (en) * | 2019-08-23 | 2021-02-26 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013231356A (en) * | 2010-08-26 | 2013-11-14 | Sanyo Electric Co Ltd | Compressor |
| CN117375326B (en) * | 2023-12-04 | 2024-02-09 | 中山市联星电器制造有限公司 | Overload self-power-off type driving motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002227789A (en) * | 2001-02-01 | 2002-08-14 | Mitsubishi Electric Corp | Rotary compressor |
-
2005
- 2005-08-16 JP JP2005236149A patent/JP2006214431A/en active Pending
- 2005-08-19 TW TW094128357A patent/TW200628702A/en unknown
- 2005-08-26 CN CN 200510093587 patent/CN1815028A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412789A (en) * | 2019-08-23 | 2021-02-26 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
| CN112412789B (en) * | 2019-08-23 | 2022-09-06 | 广东美芝制冷设备有限公司 | Compressor and refrigeration cycle device |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200628702A (en) | 2006-08-16 |
| JP2006214431A (en) | 2006-08-17 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |