CN104074768A - Screw rod compressor - Google Patents
Screw rod compressor Download PDFInfo
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- CN104074768A CN104074768A CN201310109377.6A CN201310109377A CN104074768A CN 104074768 A CN104074768 A CN 104074768A CN 201310109377 A CN201310109377 A CN 201310109377A CN 104074768 A CN104074768 A CN 104074768A
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- end cap
- motor stator
- air
- breathing end
- helical
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Abstract
The invention discloses a screw rod compressor which comprises a motor stator and a suction end cover, wherein the motor stator is arranged in the suction end cover; an axial channel and a circumferential channel for passing of fluid are arranged between the inner wall of the suction end cover and the motor stator. By arranging the axial and circumferential channels between the inner wall of the suction end cover and the motor stator, the cooling area of the motor stator of the screw rod compressor is enlarged; the motor can be sufficiently cooled and can operate under a relatively good condition, and the use safety of the compressor is improved.
Description
Technical field
The present invention relates to compressor field, particularly relate to a kind of screw type refrigerating compressor.
Background technique
As everyone knows, in the time of compressor operating, motor can send a large amount of heats, if these heats cannot be pulled away in time, will cause motor operating conditions severe, even motor damage.
And the gas circuit of the screw type refrigerating compressor of prior art circulation is: from vaporizer, low pressure refrigerant vapor is out sucked by the intakeport that is arranged on compressor air suction end cap, the flow through axial passage of motor stator both sides, suck through a pair of intermeshing negative and positive screw rotor again, compression and discharge high pressure refrigerant vapor, high pressure refrigerant vapor is condensed into high pressure refrigerant liquid in condenser after heat release, high pressure refrigerant liquid becomes low pressure refrigerant liquid after throttling in vaporizer, after the heat absorption of low pressure refrigerant liquid, become low pressure refrigerant vapor, low pressure refrigerant vapor is sucked by compressor and realizes gas circuit circulation.
The screw type refrigerating compressor of prior art cooling for motor stator and rotor conventionally, generally place it in the suction end of a pair of intermeshing negative and positive screw rotor, the flow through both sides axial passage of motor stator of the low pressure refrigerant vapor of coming from vaporizer, to take away the heating value of motor stator, but the heat of the motor stator that in prior art, this structure is taken away is very little, cannot meet the needs that reduce motor stator heat, still have the danger of motor damage.
Summary of the invention
Based on this, being necessary, for the irrationality of prior art existence, provides a kind of helical-lobe compressor, strengthen helical-lobe compressor motor stator film-cooled heat, motor is fully obtained cooling, ensure that motor moves under better condition, strengthen the Security that compressor uses.
The technological scheme of a kind of helical-lobe compressor provided by the invention is as follows:
A kind of helical-lobe compressor, comprises motor stator, air-breathing end cap, and motor stator is arranged in air-breathing end cap, has the axial passage and the circumferential passageway that pass through for fluid between air-breathing end cap inwall and motor stator.
Preferably, between air-breathing end cap inwall and motor stator, be provided with multiple positioning bars, positioning bar is for fixed electrical machinery stator.
Preferably, multiple positioning bars are matrix and arrange, wherein, between the adjacent positioning bar of the axial setting of air-breathing end cap and motor stator, form the axial passage passing through for fluid, pass through circumferential passageway along forming for fluid between the adjacent positioning bar of the circumferential setting of air-breathing end cap and motor stator.
Preferably, axial passage and circumferential passageway are crisscross arranged.
Preferably, the quantity that positioning bar axially arranges along air-breathing end cap is 2-4.
Preferably, the quantity that positioning bar axially arranges along air-breathing end cap is 3.
Preferably, the quantity that positioning bar circumferentially arranges along air-breathing end cap is 4-10.
Preferably, the quantity that positioning bar circumferentially arranges along air-breathing end cap is 8.
The invention has the beneficial effects as follows:
1, by be provided with the axial passage and the circumferential passageway that pass through for fluid between air-breathing end cap inwall and motor stator, thereby strengthen the film-cooled heat of helical-lobe compressor motor stator, motor is fully obtained cooling, ensure that motor moves under better condition, strengthen the Security that compressor uses.
Brief description of the drawings
Below in conjunction with concrete drawings and the specific embodiments, the present invention is further elaborated.
Fig. 1 is the sectional drawing of the air-breathing end cap of helical-lobe compressor of the present invention
Fig. 2 is the overall diagram of the air-breathing end cap of helical-lobe compressor of the present invention
Wherein, 1-air-breathing end cap; 2-axial passage; 3-circumferential passageway; 4-positioning bar; 5-intakeport
Embodiment
The invention provides a kind of helical-lobe compressor, strengthen helical-lobe compressor motor stator film-cooled heat, motor is fully obtained cooling, ensure that motor moves under better condition, strengthen the Security that compressor uses.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1 and Fig. 2, the sectional drawing of the air-breathing end cap that Fig. 1 is helical-lobe compressor of the present invention, the overall diagram of the air-breathing end cap that Fig. 2 is helical-lobe compressor of the present invention.
A kind of helical-lobe compressor, comprise motor stator (not shown), air-breathing end cap 1, is provided with intakeport 5 on air-breathing end cap 1, motor stator is arranged in air-breathing end cap 1, has the axial passage 2 and the circumferential passageway 3 that pass through for fluid between air-breathing end cap 1 inwall and motor stator.
By be provided with the axial passage 2 and the circumferential passageway 3 that pass through for fluid between air-breathing end cap 1 inwall and motor stator, strengthen the film-cooled heat of helical-lobe compressor motor stator, make from vaporizer low pressure refrigerant vapor out be sucked by the intakeport 5 that is arranged on the air-breathing end cap 1 of helical-lobe compressor, the axial passage 2 and circumferential passageway 3 of flowing through between motor stator and air-breathing end cap 1 inwall, to take away the heating value of motor stator, motor is fully obtained cooling, ensure that motor moves under better condition, strengthen the Security that compressor uses.
Wherein, for motor stator being fixed on firmly in air-breathing end cap 1, and ensure that fluid can take away the heat of motor stator smoothly by air-breathing end cap 1 simultaneously, and between air-breathing end cap 1 inwall and motor stator, being provided with multiple positioning bars 4, positioning bar 4 is for fixed electrical machinery stator.
Multiple positioning bars 4 can be matrix and arrange; wherein; between the adjacent positioning bar 4 of the axial setting of air-breathing end cap 1 and electronics stator, form the axial passage 2 passing through for fluid; between the adjacent positioning bar 4 of the circumferential setting of air-breathing end cap 1 and motor stator, form for fluid by circumferential passageway 3; wherein; multiple positioning bars 4 can also be other form and arrange; as long as ensure that the spread pattern of multiple positioning bars 4 can be formed with axial passage and circumferential passageway, introduce no longer one by one and all within protection domain at this.
Wherein, in order to accelerate the heat dissipation rate of motor stator, axial passage 2 is crisscross arranged with circumferential passageway 3.
Further, for the width of axial passage 2 and circumferential passageway 3 is reasonably set, to avoid rate of flow of fluid excessive, and meet the radiating effect of motor stator simultaneously, in the present embodiment, the quantity that positioning bar 4 axially arranges along air-breathing end cap 1 is 2-4, is preferably 3, the quantity that positioning bar 4 circumferentially arranges along air-breathing end cap 1 is 4-10, is preferably 8.
The above embodiment has only expressed several mode of execution of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. a helical-lobe compressor, comprises motor stator, air-breathing end cap, and described motor stator is arranged in described air-breathing end cap, it is characterized in that, has the axial passage and the circumferential passageway that pass through for fluid between described air-breathing end cap inwall and described motor stator.
2. a kind of helical-lobe compressor as claimed in claim 1, is characterized in that, between described air-breathing end cap inwall and described motor stator, is provided with multiple positioning bars, and described positioning bar is for fixing described motor stator.
3. a kind of helical-lobe compressor as claimed in claim 2, it is characterized in that, multiple described positioning bars are matrix and arrange, wherein, between the adjacent described positioning bar of the axial setting of described air-breathing end cap and described motor stator, form the described axial passage passing through for fluid, pass through described circumferential passageway along forming for fluid between the adjacent described positioning bar of the circumferential setting of described air-breathing end cap and described motor stator.
4. a kind of helical-lobe compressor as claimed in claim 3, is characterized in that, described axial passage and described circumferential passageway are crisscross arranged.
5. a kind of helical-lobe compressor as claimed in claim 2, is characterized in that, the quantity that described positioning bar axially arranges along air-breathing end cap is 2-4.
6. a kind of helical-lobe compressor as claimed in claim 5, is characterized in that, the quantity that described positioning bar axially arranges along air-breathing end cap is 3.
7. a kind of helical-lobe compressor as claimed in claim 2, is characterized in that, the quantity that described positioning bar circumferentially arranges along air-breathing end cap is 4-10.
8. a kind of helical-lobe compressor as claimed in claim 7, is characterized in that, the quantity that described positioning bar circumferentially arranges along air-breathing end cap is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109377.6A CN104074768B (en) | 2013-03-29 | 2013-03-29 | A kind of helical-lobe compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109377.6A CN104074768B (en) | 2013-03-29 | 2013-03-29 | A kind of helical-lobe compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104074768A true CN104074768A (en) | 2014-10-01 |
| CN104074768B CN104074768B (en) | 2018-05-01 |
Family
ID=51596288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310109377.6A Active CN104074768B (en) | 2013-03-29 | 2013-03-29 | A kind of helical-lobe compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104074768B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691770A (en) * | 2017-04-10 | 2018-10-23 | 日立江森自控空调有限公司 | Helical-lobe compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117887A (en) * | 1997-10-16 | 1999-04-27 | Hitachi Ltd | Screw compressor |
| CN201982300U (en) * | 2011-01-18 | 2011-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor |
| CN202334076U (en) * | 2011-11-18 | 2012-07-11 | 江森自控空调冷冻设备(无锡)有限公司 | Motor for semi-hermetic screw type refrigeration compressor and compressor set |
| CN202597111U (en) * | 2012-06-04 | 2012-12-12 | 珠海格力电器股份有限公司 | End cover structure of screw rod compressor |
| CN203175869U (en) * | 2013-03-29 | 2013-09-04 | 珠海格力电器股份有限公司 | Screw rod compressor |
-
2013
- 2013-03-29 CN CN201310109377.6A patent/CN104074768B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11117887A (en) * | 1997-10-16 | 1999-04-27 | Hitachi Ltd | Screw compressor |
| CN201982300U (en) * | 2011-01-18 | 2011-09-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor |
| CN202334076U (en) * | 2011-11-18 | 2012-07-11 | 江森自控空调冷冻设备(无锡)有限公司 | Motor for semi-hermetic screw type refrigeration compressor and compressor set |
| CN202597111U (en) * | 2012-06-04 | 2012-12-12 | 珠海格力电器股份有限公司 | End cover structure of screw rod compressor |
| CN203175869U (en) * | 2013-03-29 | 2013-09-04 | 珠海格力电器股份有限公司 | Screw rod compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691770A (en) * | 2017-04-10 | 2018-10-23 | 日立江森自控空调有限公司 | Helical-lobe compressor |
| DE102018205269B4 (en) | 2017-04-10 | 2023-12-14 | Hitachi-Johnson Controls Air Conditioning, Inc. | screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104074768B (en) | 2018-05-01 |
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