CN204200578U - Bypass mechanism and compressor - Google Patents
Bypass mechanism and compressor Download PDFInfo
- Publication number
- CN204200578U CN204200578U CN201420492391.9U CN201420492391U CN204200578U CN 204200578 U CN204200578 U CN 204200578U CN 201420492391 U CN201420492391 U CN 201420492391U CN 204200578 U CN204200578 U CN 204200578U
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- Prior art keywords
- bypass mechanism
- support platform
- seal membrane
- compressor
- magnet
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Abstract
The utility model discloses a kind of bypass mechanism and compressor.Wherein this bypass mechanism comprises valve seat, seal membrane, magnet and support, wherein: the main body of support is cylindrical ring structure, and inner side is provided with the support platform for placing seal membrane, and the table top of support platform is higher than the main body of support; Magnet is fixedly installed on the below of support platform; Valve seat is arranged on the top of support platform; Seal membrane is arranged on support platform by magnet adsorption, and the gas passage port that can move to valve seat closes gas port; When seal membrane is on support platform, gas in bypass mechanism, can be had to pass through.Its overall structure is simple, all can install and use, realize compressor variable capacity in single cylinder or multicylinder compressor, thus meets the requirement of the lower cold of compressor input.And it is by arranging magnet at internal stent, effectively can prevent the upper and lower play of seal membrane, thus also reduce the compressor body noise that may bring thus.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly relates to a kind of bypass mechanism and compressor.
Background technique
Compressor is a kind of driven fluid machinery low-pressure gas being promoted to pressurized gas.Be the heart of refrigeration system, it sucks the refrigerant gas of low-temp low-pressure from sucking pipe, after driving piston to compress it, discharges the refrigerant gas of High Temperature High Pressure, for refrigeration cycle provides power to outlet pipe by motor rotation.
Within air-conditioning systems, when the cold that air-conditioning system requires compressor input lower, machine operation frequency restriction by compression, Conventional press often can not meet requirement.And when compressor is in lower frequency operation, compressor pump is revealed large, and electric efficiency is low, causes air conditioner energy heterodyne.In conventional art, by cylinder unloading, compressor variable capacity is realized for twin-tub and multicylinder compressor, thus makes compressor meet the object of lower cold output.But by the method, compressor variable capacity is not realized for single cylinder compressor.And the element of the loading of compresser cylinder, the control of unloading needs is more, is unfavorable for that the smoothness of compressor is run.
Model utility content
Based on this, when being necessary very low for the requirement of compressor input cold, complicated to the adjustment of compressor in conventional art, and be difficult to the problem that meets the demands, provide a kind of and in single cylinder and multicylinder compressor, all can realize the bypass mechanism of compressor variable capacity and comprise the compressor of this bypass mechanism.
For realizing a kind of bypass mechanism that the utility model object provides, comprise valve seat, seal membrane, magnet and support, wherein:
The main body of described support is cylindrical ring structure, and inner side is provided with the support platform for placing described seal membrane, and the table top of described support platform is higher than the main body of described support;
Described magnet is fixedly installed on the below of described support platform;
Described valve seat is arranged on the top of described support platform;
Described seal membrane is arranged on described support platform by described magnet adsorption, and the gas passage port that can move to described valve seat closes described gas port;
When described seal membrane is on described support platform, gas in bypass mechanism, can be had to pass through.
As a kind of embodiment of bypass mechanism, inside the main body of described support, be provided with the mounting hole for installing described magnet;
Described magnet is placed in described mounting hole fixing.
As a kind of embodiment of bypass mechanism, the inner side of described support is also provided with directional post;
Described seal membrane can move between the gas port and described support platform of described valve seat along described directional post.
As a kind of embodiment of bypass mechanism, described directional post stretches out in one end being provided with support platform of the main body of described support;
Described valve seat and described directional post abut against.
As a kind of embodiment of bypass mechanism, described support platform is arranged on described directional post.
As a kind of embodiment of bypass mechanism, the perpendicular distance between the table top of the end face that the table top of described magnet apart from described support platform is nearer and described support platform is greater than 0 and is less than 2 millimeters.
As a kind of embodiment of bypass mechanism, described gas port is circular, and described seal membrane is thin rounded flakes, and larger than the diameter of described gas port 1 ~ 4 millimeter of the diameter of seal membrane.
As a kind of embodiment of bypass mechanism, there is annular groove in the arranged outside of described valve seat and/or described support.
Based on a kind of compressor of same idea, comprise cylinder, cylinder is provided with by-pass hole, the outlet port of described by-pass hole is provided with cylindrical cavity, is provided with aforesaid bypass mechanism in described cylindrical cavity.
As a kind of embodiment of compressor, described bypass mechanism elastic conjunction in described cylindrical cavity, and is respectively arranged with an elastic seal ring between the outside of the main body of described support and described cylindrical cavity and between the outside of described valve seat and described cylindrical cavity.
The beneficial effects of the utility model comprise:
A kind of bypass mechanism that the utility model provides and compressor, wherein this bypass mechanism overall structure is simple, parts form and assembly manipulation between parts also simple.All can install and use in single cylinder or multicylinder compressor, realize compressor variable capacity, thus meet the requirement of the lower cold of compressor input.And it is by arranging magnet at internal stent, by magnet adsorption seal membrane on support platform, when can effectively prevent bypass mechanism from connecting inhaling air side lowpressure, due to the upper and lower play of seal membrane that air pulsing may cause, thus also reduce the compressor body noise that may bring thus and install this bypass mechanism.It also avoid the damage that seal membrane produces due to play simultaneously, extend the working life of bypass mechanism.
Accompanying drawing explanation
Fig. 1 is the formation schematic diagram of a specific embodiment of a kind of bypass mechanism of the utility model;
Fig. 2 is that the assembling of a specific embodiment of a kind of bypass mechanism of the utility model completes formation schematic diagram;
Fig. 3 is the cylinder schematic diagram being provided with by-pass hole;
Fig. 4 is the dividing plate schematic diagram being provided with dividing plate by-pass hole;
Fig. 5 is the schematic diagram of the duplex cylinder compressor of the bypass mechanism being provided with the utility model one embodiment when normally running (closedown of gas port);
Fig. 6 is A close-up schematic view in Fig. 5;
Fig. 7 is the schematic diagram that the low cold of duplex cylinder compressor of the bypass mechanism being provided with the utility model one embodiment inputs when running (gas port is opened);
Fig. 8 is B close-up schematic view in Fig. 7;
Fig. 9 is the partial schematic diagram of bypass mechanism when installing within the compressor.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, be described below in conjunction with the embodiment of accompanying drawing to bypass mechanism of the present utility model and compressor.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The bypass mechanism of the utility model one embodiment, see 1, comprises valve seat 1, seal membrane 2, magnet 3 and support 4.Wherein: the main body of support 4 is cylindrical ring structure, inner side is provided with the support platform 41 for placing seal membrane 2, and the table top of described support platform 41 is higher than the main body of described support 4.Magnet 3 is fixedly installed on the below of support platform 41, and has certain distance between the table top of support platform.Valve seat 1 is arranged on the top of support platform 41, and has certain distance between the gas port of valve seat and the table top of support platform.
As a kind of embodiment, the mounting hole 42 for installing magnet 3 also can be set inside the main body of support 4, magnet 3 be placed in mounting hole 42 fixing.Certainly, also the important actor below the table top of support platform can arrange the mounting hole installing magnet, for fixed magnet.Certainly, in other embodiments, also by other means magnet 3 can be fixed on the below of the table top of support platform 41, also namely closer to the side of support 4.As magnet being stuck in desired location etc. by spot welding.
As shown in Figure 2, for having assembled figure.After having assembled, magnet 3 is placed in mounting hole 42.Valve seat 1 matches with support 4 shape and size, and after assembling, valve seat 1 is arranged on the top of support platform 41, also namely as shown in Figure 2, valve seat 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 carry out rotation reverse arbitrarily.As valve seat down, upward, or valve seat is upward for support, and support is towards inferior.And the port that protrude bottom one circle of valve seat is formed is as the gas port 11 of the utility model embodiment.
Meanwhile, after having assembled, seal membrane 2 is arranged on support platform 41 by magnet 3 absorption, and can move to gas port 11 place of valve seat 1, when seal membrane 2 moves to gas port 11 place, can close gas port 11.Thus the connection blocked between the by-pass hole on bypass mechanism and compresser cylinder.Wherein, as shown in Figure 3, the cylinder 5 of compressor is provided with by-pass hole 51.As shown in Figure 4, dividing plate 6 is also provided with dividing plate by-pass port 61.Bypass mechanism can be installed in the gas channel be communicated with the by-pass hole 51 of cylinder within the compressor.Connecting bypass hole, gas channel one end 51, pressurized gas that the other end can be got rid of with compressor by pipeline or be connected with the suction gas end of compressor, the one end at the valve seat place of bypass mechanism is arranged on the one end in gas channel connecting bypass hole.And after installing bypass mechanism in gas channel, two ends can only realize gas circulation by bypass mechanism.When seal membrane 2 is on support platform 41, gas in bypass mechanism, can be had to pass through.
It should be noted that, as shown in Figure 1, support platform 41 is disposed on the madial wall of support 4 herein, and when seal membrane 2 is placed on support platform 41, gas can by the space circulation between support platform, thus can have gas to pass through in bypass mechanism.
Concrete, the working procedure with the compressor of 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, when it normally runs, the pressurized gas that one end and the compressor of gas channel are discharged are communicated with, and now seal membrane both sides produce pressure reduction, bracket side is high pressure, and valve seat end is low pressure.The magnetic force that now seal membrane can overcome magnet moves to valve seat end, and shut by the gas port of valve seat, now bypass mechanism is for blocking state, not gas coming through.
As shown in Figure 6, when air-conditioning system needs compressor to input very low cold, gas channel one end disconnects being communicated with of the pressurized gas of discharging with compressor, and is connected with the inhaling air side of compressor.Now, the both sides of the seal membrane in bypass mechanism do not have pressure difference, and seal membrane contacts with support platform under the effect of magnet magnetic force, realize compressor chamber and air intake passage bypass, reach the object of compressor variable flux.Compressor is made to input lower cold.
The bypass mechanism of the utility model embodiment, overall structure is simple, parts form and assembly manipulation between parts also simple.All can install and use in single cylinder or multicylinder compressor, realize compressor variable capacity, thus meet the requirement of the lower cold of compressor input.And it is by arranging magnet at internal stent, by magnet adsorption seal membrane on support platform, when can effectively prevent bypass mechanism from connecting inhaling air side lowpressure, due to the upper and lower play of seal membrane that air pulsing may cause, thus also reduce the compressor body noise that may bring thus.It also avoid the damage that seal membrane produces due to play simultaneously, extend the working life of bypass mechanism.
In the embodiment of a bypass mechanism wherein, as depicted in figs. 1 and 2, the inner side of support 4 is also provided with directional post 43.Seal membrane 2 can move between the gas port 11 and support platform of described valve seat along described directional post.Directional post 43 stretches out in one end being provided with support platform 41 of the main body of support 4, and the length of directional post exceeds the end face of the main body of support.When assembling, valve seat 1 and directional post abut against.Restriction effect is played in the mobile position of directional post 43 pairs of seal membranes 2.Limit a columniform space between multiple directional post, the diameter of this cylindrical space is substantially identical with the size of the diameter of seal membrane 2.Seal membrane 2 moves between gas port 11 and support platform 41 along directional post.
The setting of directional post makes seal membrane movement under pneumatic pressure more steady, avoids seal membrane inclination in moving process to cause the sealing effect of gas port poor.Make the unlatching of the bypass mechanism of the utility model embodiment or close more accurately and reliably.Directional post also can ensure that seal membrane 2 does not offset under magnet 3 magnetic force and pressure effect, avoids edge to contact with the madial wall of support 4 and causes damage.
Wherein, the quantity of directional post 43 is at least 3.A columniform motion track during the setting of three directional posts can limit accurately, effectively avoid seal membrane to offset, and fabricating cost is low.Meanwhile, the face of the contact of directional post and seal membrane, can be arranged to concave surface, more identical with the outer peripheral surface of seal membrane, limits better effects if.The quantity of certain directional post also can be set to other quantity, as 4 or 5 etc.
It should be noted that, as depicted in figs. 1 and 2, the diameter of the bottom gas outlet 44 of the bottom of described support is less herein, and also namely support bottom end is provided with a circle bump 45, reduces bottom gas outlet 44.Design like this, when pressurized gas can be made to impact seal membrane, mainly concentrates on the middle part of seal membrane, equally also has the effect reducing seal membrane and tilt.Also directional post can be arranged on bump 45, total is more firm.
Separately, also support platform 41 can be arranged on directional post 43 in other embodiments.
As a kind of embodiment, the quantity arranging magnet 3 is identical with the quantity of directional post 43, each directional post is provided with mounting hole 42, is provided with one block of magnet in each mounting hole 42.Arrange less magnet, magnet entirety be placed in mounting hole 42, seal membrane, is adsorbed on support platform from multiple angle suction-operated seal membrane by multiple magnet.
It should be noted that, the value of the magnetic force F of multiple magnet entirety should in following scope herein:
G+0.8MPa*S≥F≥G+(0.02MPa～0.05MPa)*S，
Wherein, G is the weight (gravity) of seal membrane, and S is the area of seal membrane.
As other embodiments, magnet 2 can be the magnet piece of a rectangular structure.And through hole can be set in the intermediate portion of magnet piece.Magnet 2 also can be a monoblock ring magnet, and the edge card of ring magnet is located in mounting hole 42 fixing.Now the magnetic force of the magnet piece of ring magnet or rectangular structure is identical with the magnetic force F span of aforementioned multiple magnet entirety.
It should be noted that, as shown in Figure 2, after having assembled, the upper surface of magnet 2, also namely apart from the end face that the table top of support platform is nearer, and the perpendicular distance between the table top of support platform is greater than 0 and is less than 2 millimeters.Can ensure that seal membrane 2 is placed on support platform under the effect of magnet power like this, and not collide with magnet 3, thus avoid seal membrane and magnet to collide deforming, also avoid magnet to collide producing powder impurity entering in compressor cavity.
Wherein, the table top of described support platform is the end face of the placement seal membrane of support platform.
In addition, the gas port 11 on valve seat is circular, and seal membrane 2 is also thin rounded flakes, and larger than the diameter of described gas port 1 ~ 4 millimeter of the diameter of seal membrane, i.e. the edge 0.5 ~ 2mm of seal membrane and valve seat contact position distance seal membrane.
It should be noted that, the edge that valve seat contacts with seal membrane is arc surface herein, is now arc surface and plane contact, and the distance that the edge of seal membrane and contact position are provided with 0.5 ~ 2mm can avoid seal membrane and valve seat to occur EDGE CONTACT.If there is EDGE CONTACT, when gas channel passes into pressurized gas, under the effect of gas example, easily cause seal membrane edge breaks.And the utility model embodiment effectively reduces seal membrane damage in use.
As a kind of embodiment, as shown in Figure 2, can at the arranged outside annular groove 46 of valve seat and/or described support.Can add elastic seal ring in annular groove 46 when assembling, the gas in gas channel can be made can only to be flowed by bypass mechanism, and the control of whether compressor being opened to bypass mechanism is more accurate.
Also provide a kind of compressor based on same idea the utility model, the cylinder of compressor is provided with by-pass hole, and within the compressor, be also provided with the cylindrical cavity of the outlet in connecting bypass hole, in cylindrical cavity, be provided with aforesaid bypass mechanism.Namely cylindrical cavity forms aforesaid gas channel herein.Bypass mechanism is arranged on by the gas channel that cylindrical cavity is formed.The gas channel of placing rack one end needs the pressurized gas of connection compressor output according to compressor operating or is communicated with the suction side of compressor.Compressor also can be able to be single cylinder compressor for parallel bars compressor, can respectively arrange a bypass mechanism for each cylinder.The compressor arranging bypass mechanism can meet the situation of very low cold input, and compressor noise is little.
In the embodiment of a compressor wherein, as shown in Figure 7, bypass mechanism elastic conjunction in described cylindrical cavity, and is respectively arranged with an elastic seal ring 6 between the outside of the main body of the support of bypass mechanism and described cylindrical cavity and between the outside of described valve seat and described cylindrical cavity.The setting of elastic seal ring can make the gas in gas channel can only be circulated by bypass mechanism, when seal membrane moves to the gas passage port of valve seat, whole gas channel can be made to block completely, and compressor normally runs, also namely bypass mechanism is not opened, and compressor does not provide very low cold.
The above embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a bypass mechanism, is characterized in that, comprises valve seat, seal membrane, magnet and support, wherein:
The main body of described support is cylindrical ring structure, and inner side is provided with the support platform for placing described seal membrane, and the table top of described support platform is higher than the main body of described support;
Described magnet is fixedly installed on the below of described support platform;
Described valve seat is arranged on the top of described support platform;
Described seal membrane is arranged on described support platform by described magnet adsorption, and the gas passage port that can move to described valve seat closes described gas port;
When described seal membrane is on described support platform, gas in bypass mechanism, can be had to pass through.
2. bypass mechanism according to claim 1, is characterized in that, is provided with the mounting hole for installing described magnet inside the main body of described support;
Described magnet is placed in described mounting hole fixing.
3. bypass mechanism according to claim 1, is characterized in that, the inner side of described support is also provided with directional post;
Described seal membrane can move between the gas port and described support platform of described valve seat along described directional post.
4. bypass mechanism according to claim 3, is characterized in that, described valve seat and described directional post abut against.
5. the bypass mechanism according to claim 3 or 4, is characterized in that, described support platform is arranged on described directional post.
6. bypass mechanism according to claim 1, is characterized in that, the perpendicular distance between the table top of the end face that the table top of described magnet apart from described support platform is nearer and described support platform is greater than 0 and is less than 2 millimeters.
7. bypass mechanism according to claim 1, is characterized in that, described gas port is circular, and described seal membrane is thin rounded flakes, and larger than the diameter of described gas port 1 ~ 4 millimeter of the diameter of seal membrane.
8. bypass mechanism according to claim 1, is characterized in that, has annular groove in the arranged outside of described valve seat and/or described support.
9. a compressor, comprises cylinder, and cylinder is provided with by-pass hole, it is characterized in that, the outlet port of described by-pass hole is provided with cylindrical cavity, is provided with the bypass mechanism described in any one of claim 1 to 8 in described cylindrical cavity.
10. compressor according to claim 9, it is characterized in that, described bypass mechanism elastic conjunction in described cylindrical cavity, and is respectively arranged with an elastic seal ring between the outside of the main body of described support and described cylindrical cavity and between the outside of described valve seat and described cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492391.9U CN204200578U (en) | 2014-08-28 | 2014-08-28 | Bypass mechanism and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492391.9U CN204200578U (en) | 2014-08-28 | 2014-08-28 | Bypass mechanism and compressor |
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| Publication Number | Publication Date |
|---|---|
| CN204200578U true CN204200578U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420492391.9U Withdrawn - After Issue CN204200578U (en) | 2014-08-28 | 2014-08-28 | Bypass mechanism and compressor |
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| CN (1) | CN204200578U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443387A (en) * | 2014-08-28 | 2016-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Bypass mechanism and compressor |
-
2014
- 2014-08-28 CN CN201420492391.9U patent/CN204200578U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443387A (en) * | 2014-08-28 | 2016-03-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Bypass mechanism and compressor |
| CN105443387B (en) * | 2014-08-28 | 2017-03-22 | 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150311 Effective date of abandoning: 20170322 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |