CN105443387B - Bypass mechanism and compressor - Google Patents
Bypass mechanism and compressor Download PDFInfo
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- CN105443387B CN105443387B CN201410432605.8A CN201410432605A CN105443387B CN 105443387 B CN105443387 B CN 105443387B CN 201410432605 A CN201410432605 A CN 201410432605A CN 105443387 B CN105443387 B CN 105443387B
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- bypass mechanism
- supporting table
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- compressor
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Abstract
The invention discloses a bypass mechanism and a compressor. The bypass mechanism comprises a valve seat, a sealing diaphragm, a magnet and a support, wherein the main body of the support is a cylindrical ring structure, the inner side of the support is provided with a supporting table for disposing the sealing diaphragm, and the table surface of the supporting table is higher than the main body of the support; the magnet is fixedly arranged below the supporting table; the valve seat is arranged above the supporting table; the sealing diaphragm is adsorbed to the supporting table by the magnet, and can move to the gas port of the valve seat to close the gas port; and a gas passes through the bypass mechanism when the sealing diaphragm is on the supporting table. The bypass mechanism has a simple integral structure, and can be used in a single-cylinder or multi-cylinder compressor to realize variable volume of the compressor in order to meet low-cooling capacity input requirements of the compressor. The magnet is arranged in the support to effectively prevent up-and-down motion of the sealing diaphragm in order to reduce possible compressor body noises brought by the up-and-down motion of the sealing diaphragm.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of bypass mechanism and compressor.
Background technology
Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to gases at high pressure.It is the heart of refrigeration system
Dirty, it sucks the refrigerant gas of low-temp low-pressure from suction nozzle, after being compressed to which by motor rotation band piston, to row
Trachea discharges the refrigerant gas of High Temperature High Pressure, provides power for kind of refrigeration cycle.
Within air-conditioning systems, when air conditioning system requires that compressor is input into lower cold, compressed machine running frequency limit
System, Conventional press Jing often can not meet requirement.And, when compressor is run in lower frequency, compressor pump is revealed
Greatly, electric efficiency is low, causes air conditioner efficiency poor.In conventional art, for twin-tub and multicylinder compressor can be unloaded by cylinder
Load realizes compressor varying capacity, so that compressor meets the purpose of lower cold output.But for single cylinder compressor can not
Compressor varying capacity is realized by the method.And compresser cylinder loading, unloading need control element it is more, be unfavorable for pressure
The smooth operation of contracting machine.
The content of the invention
It is based on this, it is necessary to when requiring very low for compressor input cold, multiple to the adjustment of compressor in conventional art
It is miscellaneous, and be difficult to meet the problem for requiring, there is provided it is a kind of that compressor varying capacity can be realized in single cylinder and multicylinder compressor
Bypass mechanism and the compressor comprising the bypass mechanism.
To realize a kind of bypass mechanism that the object of the invention is provided, including valve seat, seal membrane, Magnet and support, wherein：
The main body of the support is cylindrical ring structure, and inner side is provided with for placing the supporting table of the seal membrane, and institute
State the main body of the table top higher than the support of supporting table；
The Magnet is fixedly installed on the lower section of the supporting table；
The valve seat is arranged on the top of the supporting table；
The seal membrane is arranged in the supporting table by the magnet adsorption, and can move to the gas of the valve seat
Body passage port closes the gas port；
When the seal membrane is in the supporting table, in bypass mechanism, there can be gas to pass through.
As a kind of embodiment of bypass mechanism, it is provided with the inside of the main body of the support for installing the Magnet
Installing hole；
The Magnet is fixed in being placed on the installing hole.
As a kind of embodiment of bypass mechanism, on the inside of the support, lead column is additionally provided with；
The seal membrane can be moved between the gas port and the supporting table of the valve seat along the lead column.
Used as a kind of embodiment of bypass mechanism, the lead column is provided with supporting table in the main body of the support
One end stretches out；
The valve seat is abutted against with the lead column.
Used as a kind of embodiment of bypass mechanism, the supporting table is arranged in the lead column.
As a kind of embodiment of bypass mechanism, the nearer end face of table top of the Magnet away from the supporting table and institute
The vertical dimension between the table top of supporting table is stated more than 0 and less than 2 millimeters.
Used as a kind of embodiment of bypass mechanism, the gas port is circle, and the seal membrane is circular thin
Piece, and the diameter of seal membrane is bigger than the diameter of the gas port 1～4 millimeter.
As a kind of embodiment of bypass mechanism, annular is provided with the outside of the valve seat and/or the support
Groove.
Based on a kind of compressor of same idea, including cylinder, by-pass prot, the outlet of the by-pass prot are provided with cylinder
Place is provided with cylindrical cavity, and aforesaid bypass mechanism is provided with the cylindrical cavity.
As a kind of embodiment of compressor, the bypass mechanism elastic conjunction in the cylindrical cavity, and
Between the outside of the main body of the support and the cylindrical cavity and the valve seat outside and the cylindrical cavity between
It is respectively arranged with an elastic seal ring.
Beneficial effects of the present invention include：
A kind of bypass mechanism and compressor that the present invention is provided, wherein the bypass mechanism overall structure are simple, and part is constituted
And the assembly manipulation between part is also simple.Can install and use in single cylinder or multicylinder compressor, realize compressor transfiguration
Amount, is input into the requirement of lower cold so as to meet compressor.And which passes through to arrange Magnet in internal stent, is sealed by magnet adsorption
Diaphragm in supporting table, effectively can prevent bypass mechanism connection suction gas side low pressure when, as air pulsing may cause
The upper and lower play of seal membrane, so as to also reduce thus may bring install this bypass mechanism compressor body noise.Together
When it also avoid the damage that seal membrane is produced due to play, extend the service life of bypass mechanism.
Description of the drawings
Fig. 1 is a kind of composition schematic diagram of a specific embodiment of bypass mechanism of the invention；
Fig. 2 is that a kind of assembling of a specific embodiment of bypass mechanism of the invention completes to constitute schematic diagram；
Fig. 3 is the cylinder schematic diagram for being provided with by-pass prot；
Fig. 4 is the dividing plate schematic diagram for being provided with dividing plate by-pass prot；
Fig. 5 is that the duplex cylinder compressor of the bypass mechanism for being provided with one embodiment of the invention normally runs (closing of gas port)
When schematic diagram；
Fig. 6 is A close-up schematic views in Fig. 5；
Fig. 7 is that (gas leads to for the duplex cylinder compressor low cold input operation of the bypass mechanism for being provided with one embodiment of the invention
Mouthful open) when schematic diagram；
Fig. 8 is B close-up schematic views in Fig. 7；
Fig. 9 is partial schematic diagram when bypass mechanism is installed within the compressor.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention's
The specific embodiment of bypass mechanism and compressor is illustrated.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The bypass mechanism of one embodiment of the invention, referring to 1, including valve seat 1, seal membrane 2, Magnet 3 and support 4.Wherein：
The main body of support 4 is cylindrical ring structure, and inner side is provided with for placing the supporting table 41 of seal membrane 2, and the supporting table 41
Main body of the table top higher than the support 4.Magnet 3 is fixedly installed on the lower section of supporting table 41, has and the table top of supporting table between
A certain distance.Valve seat 1 is arranged between the top of supporting table 41, and the gas port and the table top of supporting table of valve seat has one
Fixed distance.
As a kind of embodiment, it is also possible to be provided for installing the installing hole of Magnet 3 on the inside of the main body of support 4
42, Magnet 3 is placed in installing hole 42 fixed.It is of course also possible to arrange on important actor below the table top of supporting table install
The installing hole of Magnet, for fixed magnet.Certainly, in other embodiments, it is also possible to by other means Magnet 3 is fixed on
The lower section of the table top of supporting table 41, namely closer to the side of support 4.Magnet is stuck in by desired location etc. by spot welding such as.
As shown in Fig. 2 completing figure for assembling.After the completion of assembling, Magnet 3 is placed in installing hole 42.Valve seat 1 and support 4
Form and dimension matches, and after assembling, and valve seat 1 is arranged on the top of supporting table 41, namely as shown in Fig. 2 by valve seat
It is placed on the top of support.It should be noted that when whole bypass mechanism is arranged within the compressor, whole bypass mechanism can enter
The arbitrarily reverse rotation of row.Such as valve seat down, upward, or valve seat is upward for support, and support is towards inferior.And the bottom of valve seat is convex
Gas port 11 of the port that the circle for going out is constituted as the embodiment of the present invention.
Meanwhile, after the completion of assembling, seal membrane 2 is arranged in supporting table 41 by the absorption of Magnet 3, and can move to valve seat
At 1 gas port 11, when seal membrane 2 is moved at gas port 11, gas port 11 can be closed.So as to block side
The connection between by-pass prot in logical mechanism and compresser cylinder.Wherein, as shown in figure 3, being provided with the cylinder 5 of compressor
By-pass prot 51.As shown in figure 4, dividing plate by-pass port 61 is also equipped with dividing plate 6.Bypass mechanism may be mounted in compressor with gas
In the gas passage of the connection of by-pass prot 51 of cylinder.Gas passage one end connecting bypass hole 51, the other end can be with pressures by pipeline
Gases at high pressure or be connected with the suction gas end of compressor that contracting machine is excluded, one end that the valve seat of bypass mechanism is located are arranged on
The one end in gas passage connecting bypass hole.And after installing bypass mechanism in gas passage, two ends can only be realized by bypass mechanism
Gas circulates.When seal membrane 2 is in supporting table 41, in bypass mechanism, there can be gas to pass through.
Herein it should be noted that as shown in figure 1, supporting table 41 is disposed on the medial wall of support 4, seal membrane 2
When being placed in supporting table 41, gas can pass through the space circulation between supporting table, so as to there is gas in bypass mechanism
Pass through.
Specifically, the course of work of the compressor with aforesaid by-pass mechanism 100 is as follows：
As shown in Figures 5 and 6, compressor is duplex cylinder compressor, is provided with two bypass mechanisms, the situation of its normal operation
Under, the gases at high pressure that one end of gas passage is discharged with compressor are connected, and now seal membrane both sides produce pressure reduction, and bracket side is
High pressure, valve seat end are low pressure.Now seal membrane can overcome the magnetic force of Magnet to move to valve seat end, by the gas port of valve seat
Shut, now bypass mechanism is not passed through gas for blocking state.
As shown in fig. 6, when air conditioning system needs compressor to be input into very low cold, gas passage one end disconnects and compression
The connection of the gases at high pressure that machine is discharged, and be connected with the suction gas side of compressor.Now, the seal membrane in bypass mechanism
Both sides there is no pressure differential, seal membrane is contacted with supporting table in the presence of Magnet magnetic force, realizes compressor chamber and air-breathing
Passage is bypassed, and reaches the purpose of compressor the flexible amount.Compressor is made to be input into lower cold.
The bypass mechanism of the embodiment of the present invention, overall structure are simple, and the assembly manipulation between part composition and part is also simple
It is single.Can install and use in single cylinder or multicylinder compressor, realize compressor varying capacity, it is lower so as to meet compressor input
The requirement of cold.And which passes through to arrange Magnet in internal stent, by magnet adsorption seal membrane in supporting table, effectively can prevent
During bypass mechanism connection suction gas side low pressure, due to the upper and lower play of seal membrane that air pulsing may cause, so as to
Reduce the compressor body noise that thus may be brought.It also avoid the damage that seal membrane is produced due to play simultaneously, prolong
The service life of long bypass mechanism.
Wherein in the embodiment of a bypass mechanism, as depicted in figs. 1 and 2, the inner side of support 4 is additionally provided with lead column
43.Seal membrane 2 can be moved between the gas port 11 and supporting table of the valve seat along the lead column.Lead column 43 exists
One end for being provided with supporting table 41 of the main body of support 4 stretches out, and the length of lead column exceeds the end face of the main body of support.In dress
Timing, valve seat 1 are abutted against with lead column.Lead column 43 plays restriction effect to the shift position of seal membrane 2.Multiple lead columns it
Between limit a cylindrical space, the diameter of this cylindrical space is essentially identical with the size of the diameter of seal membrane 2.It is close
Sealer piece 2 is moved between gas port 11 and supporting table 41 along lead column.
The setting of lead column makes seal membrane movement under pneumatic pressure more steady, it is to avoid in moving process, seal membrane inclines
Tiltedly cause the sealing effectiveness to gas port poor.Make the embodiment of the present invention bypass mechanism be turned on or off more accurately may be used
Lean on.Lead column can also ensure that seal membrane 2 does not shift under 3 magnetic force of Magnet and pressure effect, it is to avoid edge and support 4
Medial wall contact causes to damage.
Wherein, the quantity of lead column 43 is at least 3.During the setting of three lead columns accurately can be limited one it is cylindrical
Motion track, be prevented effectively from seal membrane skew, and low manufacture cost.Meanwhile, the face of lead column and the contact of seal membrane,
Concave surface is can be set to, is more coincide with the outer circumference surface of seal membrane, limit effect more preferable.Certainly the quantity of lead column can also
It is set to other quantity, such as 4 or 5 etc..
Herein it should be noted that as depicted in figs. 1 and 2, the diameter of the bottom gas outlet 44 of the bottom of the support
It is less, namely support bottom end is provided with a circle protuberance 45, reduces bottom gas outlet 44.It is so designed that, high pressure can be made
During gas impact seal membrane, the middle part of seal membrane is concentrated mainly on, equally also has the inclined effect of reduction seal membrane.
Post can be directed to be arranged on protuberance 45, total is more consolidated.
Separately, also supporting table 41 can be arranged in lead column 43 in other embodiments.
Used as a kind of embodiment, the quantity for arranging Magnet 3 is identical with the quantity of lead column 43, in each lead column
Installing hole 42 is provided with, one block of Magnet is installed in each installing hole 42.Less Magnet is set, Magnet is integrally placed into peace
In dress hole 42, multiple Magnet adsorption from multiple angles are to seal membrane adsorbs seal membrane in supporting table.
Herein it should be noted that the value of the overall magnetic force F of multiple Magnet should be in following scope：
G+0.8MPa*S >=F >=G+ (0.02MPa～0.05MPa) * S,
Wherein, weight (gravity) of the G for seal membrane, areas of the S for seal membrane.
Used as other embodiments, Magnet 2 can be the magnet piece of a rectangular structure.And can be in magnet piece
Middle part arranges through hole.Magnet 2 can also be a monoblock annular magnet, and the edge of annular magnet is consolidated in being fastened on installing hole 42
It is fixed.Now overall magnetic force F spans of the magnetic force of the magnet piece of annular magnet or rectangular structure and aforesaid plurality of Magnet
It is identical.
It should be noted that as shown in Fig. 2 assembling after the completion of, the upper surface of Magnet 2, namely the table top away from supporting table compared with
Near end face, the vertical dimension and table top of supporting table between are more than 0 and are less than 2 millimeters.So can ensure that seal membrane 2 exists
It is placed in supporting table under the effect of Magnet power, and does not collide with Magnet 3, so as to avoids seal membrane from colliding with Magnet
Deform, also avoid Magnet collision from producing powder impurity and enter in compressor cavity.
Wherein, end face of the table top of the supporting table for the placement seal membrane of supporting table.
In addition, the gas port 11 on valve seat is circle, seal membrane 2 is also thin rounded flakes, and the diameter of seal membrane
It is bigger than the diameter of the gas port 1～4 millimeter, i.e., the edge 0.5 of seal membrane and valve seat contact position away from seal membrane～
2mm。
Herein it should be noted that the edge that valve seat is contacted with seal membrane is arc surface, it is now arc surface and plane
Contact, edge and the contact position of seal membrane are provided with the distance of 0.5～2mm seal membrane can be avoided edge occur with valve seat and connect
Touch.If there is EDGE CONTACT, when gas passage is passed through gases at high pressure, seal membrane side is easily caused under the effect of gas example
Edge ruptures.And the embodiment of the present invention effectively reduces seal membrane damage in use.
As a kind of embodiment, as shown in Fig. 2 annular groove can be arranged in the outside of valve seat and/or the support
46.Elastic seal ring can be added in annular groove 46 in assembling, the gas in gas passage can be made to pass through bypass machine
Structure flows, and the control for whether opening bypass mechanism to compressor is more accurate.
Based on same idea, the present invention also provides a kind of compressor, and by-pass prot is provided with the cylinder of compressor, and in pressure
In contracting machine, the cylindrical cavity of the outlet in connecting bypass hole is additionally provided with, in cylindrical cavity, is provided with aforesaid bypass mechanism.
Cylindrical cavity constitutes aforesaid gas passage herein.Bypass mechanism is arranged on the gas passage being made up of cylindrical cavity
In.Place the gas passage of support one end according to compressor operating need to connect the gases at high pressure of compressor output or with compression
The suction side connection of machine.Compressor can also can be single cylinder compressor for parallel bars compressor, can respectively set for each cylinder
Put a bypass mechanism.The compressor for arranging bypass mechanism can meet the situation of very low cold input, and compressor noise is little.
Wherein in the embodiment of a compressor, as shown in fig. 7, bypass mechanism elastic conjunction is in the cylindrical cavity
In, and between the outside of the main body of the support of bypass mechanism and the cylindrical cavity and the valve seat outside and the cylinder
An elastic seal ring 6 is respectively arranged between shape cavity.The setting of elastic seal ring can make the gas in gas passage can only
Circulated by bypass mechanism, when seal membrane moves to the gas passage port of valve seat, whole gas passage can be made to block completely,
Compressor normally runs, namely bypass mechanism is not opened, and compressor does not provide very low cold.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (10)
1. a kind of bypass mechanism, it is characterised in that including valve seat, seal membrane, Magnet and support, wherein：
The main body of the support is cylindrical ring structure, and inner side is provided with for placing the supporting table of the seal membrane, and described
Main body of the table top of support platform higher than the support；
The Magnet is fixedly installed on the lower section of the supporting table；
The valve seat is arranged on the top of the supporting table；
The seal membrane is arranged in the supporting table by the magnet adsorption, and it is logical to move to the gas of the valve seat
The gas port is closed at mouthful；
When the seal membrane is in the supporting table, in bypass mechanism, there can be gas to pass through.
2. bypass mechanism according to claim 1, it is characterised in that be provided with the inside of the main body of the support for installing
The installing hole of the Magnet；
The Magnet is fixed in being placed on the installing hole.
3. bypass mechanism according to claim 1, it is characterised in that be additionally provided with lead column on the inside of the support；
The seal membrane can be moved between the gas port and the supporting table of the valve seat along the lead column.
4. bypass mechanism according to claim 3, it is characterised in that the valve seat is abutted against with the lead column.
5. the bypass mechanism according to claim 3 or 4, it is characterised in that the supporting table is arranged in the lead column.
6. bypass mechanism according to claim 1, it is characterised in that table top of the Magnet away from the supporting table is nearer
Vertical dimension between the table top of end face and the supporting table is more than 0 and is less than 2 millimeters.
7. bypass mechanism according to claim 1, it is characterised in that the gas port is circle, the seal membrane
For thin rounded flakes, and the diameter of seal membrane is bigger than the diameter of the gas port 1～4 millimeter.
8. bypass mechanism according to claim 1, it is characterised in that set on the outside of the valve seat and/or the support
It is equipped with annular groove.
9. a kind of compressor, including cylinder, is provided with by-pass prot on cylinder, it is characterised in that the exit of the by-pass prot sets
It is equipped with cylindrical cavity, the bypass mechanism being provided with the cylindrical cavity described in any one of claim 1 to 8.
10. compressor according to claim 9, it is characterised in that the bypass mechanism elastic conjunction is in the cylinder
In cavity, and between the outside of the main body of the support and the cylindrical cavity and the valve seat outside and the cylinder
An elastic seal ring is respectively arranged between cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410432605.8A CN105443387B (en) | 2014-08-28 | 2014-08-28 | Bypass mechanism and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410432605.8A CN105443387B (en) | 2014-08-28 | 2014-08-28 | Bypass mechanism and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443387A CN105443387A (en) | 2016-03-30 |
| CN105443387B true CN105443387B (en) | 2017-03-22 |
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ID=55553934
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410432605.8A Active CN105443387B (en) | 2014-08-28 | 2014-08-28 | Bypass mechanism and compressor |
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| Country | Link |
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| CN (1) | CN105443387B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901485A (en) * | 2021-01-25 | 2021-06-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Static vortex disc, vortex compressor and air conditioner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202117928U (en) * | 2011-06-14 | 2012-01-18 | 广东美芝制冷设备有限公司 | Capacitance variable type rotary compressor |
| CN103867443A (en) * | 2012-12-13 | 2014-06-18 | 上海日立电器有限公司 | Variable capacity control method of single-cylinder frequency conversion compressor |
| CN203742949U (en) * | 2013-12-31 | 2014-07-30 | 上海三电贝洱汽车空调有限公司 | Bidirectional variable-displacement swash plate compressor |
| CN204200578U (en) * | 2014-08-28 | 2015-03-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Bypass mechanism and compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360542A (en) * | 2003-06-04 | 2004-12-24 | Calsonic Compressor Inc | Gas compressor |
| KR20060065801A (en) * | 2004-12-10 | 2006-06-14 | 엘지전자 주식회사 | Air conditioner |
-
2014
- 2014-08-28 CN CN201410432605.8A patent/CN105443387B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202117928U (en) * | 2011-06-14 | 2012-01-18 | 广东美芝制冷设备有限公司 | Capacitance variable type rotary compressor |
| CN103867443A (en) * | 2012-12-13 | 2014-06-18 | 上海日立电器有限公司 | Variable capacity control method of single-cylinder frequency conversion compressor |
| CN203742949U (en) * | 2013-12-31 | 2014-07-30 | 上海三电贝洱汽车空调有限公司 | Bidirectional variable-displacement swash plate compressor |
| CN204200578U (en) * | 2014-08-28 | 2015-03-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Bypass mechanism and compressor |
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| CN105443387A (en) | 2016-03-30 |
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