CN201896746U

CN201896746U - Gas injection structure of scroll compressor

Info

Publication number: CN201896746U
Application number: CN2010205975838U
Authority: CN
Inventors: 李训安; 叶忠泓
Original assignee: ZHONGSHAN FUSHENG ELECTROMECHANICAL CO Ltd
Current assignee: ZHONGSHAN FUSHENG ELECTROMECHANICAL CO Ltd
Priority date: 2010-11-09
Filing date: 2010-11-09
Publication date: 2011-07-13
Anticipated expiration: 2020-11-09

Abstract

The utility model discloses a gas injection structure of a scroll compressor, which comprises a projection, a groove, a penetrating hole, a gas injection cover and sealing components. The projection extends out of one end of a fixed scroll, the groove is arranged on the fixed scroll and annularly disposed on the circumference of the projection, the penetrating hole is arranged on the fixed scroll and communicated with the groove and a compression chamber, the gas injection cover is provided with a gas inlet channel and a through hole are arranged on the gas injection cover, the through hole is connected to the projection in a sleeved manner, the sealing components are respectively mounted between the fixed scroll and the gas injection cover and formed on the inner circumference and the outer circumference of the groove so that a fluid channel is formed among the gas injection cover, the sealing components and the fixed scroll in a surrounding manner, and the fluid channel, the gas inlet channel and the penetrating hole are communicated with each other. Accordingly, the gas injection structure can prevent unsmooth floating of the fixed scroll, overcome leakage of the fluid channel and further improve compression efficacy.

Description

The gas jet structure of scroll compressor

Technical field

The utility model relates to a kind of compressor, relates in particular to a kind of gas jet structure about scroll compressor.

Background technique

Scroll compressor mainly comprises quiet scrollwork (Fixed Scroll) and moving scrollwork (Orbiting Scroll), the vortex filament blade of two scrollwork assemblies is meshing with each other, so that working fluid is entered in the pressing chamber by its suction port, again via the continuous moving of moving scrollwork, working fluid is compressed promotion, so that the vent of quiet scrollwork spues, and the compression stroke of the fluid of finishing the work.Yet will produce high temperature fluid after working fluid is by a large amount of compressions, this high temperature fluid will significantly reduce its compression usefulness after the relief opening output of compressor.

Industry is for overcoming problem point, develop compressor successively with fluid injection system, CN101258327A discloses as the Chinese patent publication number, it is directly to offer two oblique inlet holes on quiet scrollwork, terminal position in this two oblique inlet hole offers the fumarole that is communicated with pressing chamber respectively, and utilize in the side edge installing one of quiet scrollwork and manage, the two ends of this pipe are communicated with the outside of compressor and the inlet hole position of two oblique inlet holes respectively; So, to be combined into the gas jet structure of compressor.

Yet the gas jet structure of existing compressor still exists following problem points to be overcome in actual use, because its inlet hole is to be oblique to offer, this oblique inlet hole is processing difficulties not only, and the precision of its processing also is difficult to effectively be controlled; Its pipe is a side edge that is combined in quiet scrollwork with welding manner, and this means of fixation but has the problem easily revealed from engagement positio with gas of being not easy of installing; The bottom of its pipe is mounted in the moving scope of moving scrollwork, needs to increase once more vome of shell in the design; Really remain to be improved.

The model utility content

A purpose of the present utility model, be to provide a kind of gas jet structure of scroll compressor, it is the axial socket with gas blowout lid and quiet scrollwork, can prevent quiet scrollwork having some setbacks and can overcome the leakage of fluid passage and then improve and compress usefulness in location free procedure.

To achieve the above object, the utility model provides a kind of gas jet structure of scroll compressor, described compressor comprises a quiet scrollwork and a moving scrollwork, this quiet scrollwork and this moving scrollwork form mutual work blade movingly respectively, and between these blades, be formed with a pressing chamber, this gas jet structure comprises:

One bump stretches out from an end of this quiet scrollwork;

One groove is opened in this quiet scrollwork and is located on the outside of this bump;

A plurality of perforation are opened in this quiet scrollwork and are communicated with this groove and this pressing chamber;

One gas blowout lid, it is provided with a gas-entered passageway and a through hole, and this through hole is socketed in this bump; And

A pair of black box, be placed between this quiet scrollwork and this gas blowout lid respectively and be formed at the interior outside of this groove, with at this gas blowout lid, this encloses between to black box and this quiet scrollwork and constitutes a fluid passage, this fluid passage, this gas-entered passageway and this a plurality of perforation communicate with each other.

The gas jet structure of above-mentioned scroll compressor, wherein, this bump is a hollow circular cylinder, this through hole is socketed on this hollow circular cylinder.

The gas jet structure of above-mentioned scroll compressor, wherein, the convex extension part that this gas blowout lid comprises a circular ring body and certainly should circle ring body one side extends.

The gas jet structure of above-mentioned scroll compressor, wherein, this gas-entered passageway comprises a suction port that is opened in this bottom surface, convex extension part, an air outlet that is opened in this circle ring bottom, reaches a plurality of intercommunicating pores that are communicated with this suction port and this air outlet.

The gas jet structure of above-mentioned scroll compressor, wherein, this fluid passage is to set corresponding to this position, air outlet, and is interconnected with this gas-entered passageway.

The gas jet structure of above-mentioned scroll compressor wherein, also comprises a spacer ring, and this spacer ring is to be fixed on the described compressor, and this spacer ring is provided with the gas distribution channel to should the suction port position setting.

The utility model also has following effect because gas blowout lid and quiet scrollwork are with hole, axle socket mode combination mutually, so in the process of assembling, become suitable easily and easy; Gas jet structure of the present utility model is formed in the top position of quiet scrollwork, and the moving scope of moving scrollwork can be avoided fully, can possess original shell dimension under identical output usefulness.So gas blowout of the present utility model lid is to follow floating of quiet scrollwork and start can be guaranteed sealing effect between the two.Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.

Description of drawings

Fig. 1 the utility model gas jet structure is installed in the inner assembled sectional view of compressor;

Fig. 2 the utility model gas jet structural upright exploded view;

Fig. 3 quiet scrollwork plan view of the present utility model;

Fig. 4 gas blowout lid of the present utility model and spacer ring are incorporated into quiet scrollwork plan view;

Fig. 5 the utility model gas jet structure user mode figure.

Wherein, reference character

1... compressor

10... compressor main body

11... upper shell 12... lower shell body

13... hollow reservoir 14... transmission shaft

15... separate assembly 151... exhaust passage

152... lip sheet 16... zone of high pressure

17... low pressure area 18... relief opening

20... quiet scrollwork

21... blade

30... moving scrollwork

31... blade

40... gas jet structure

41... bump

411... vent

42... gas blowout lid

420... circular ring body 421... through hole

422... convex extension part 423... gas-entered passageway

424... suction port 425... air outlet

426

... intercommunicating pore

43,43a... black box

44... groove 45... perforation

46... spacer ring

461... gas distribution channel

A... pressing chamber

B... fluid passage

Embodiment

Relevant detailed description of the present utility model and technology contents cooperate graphic being described as follows, yet appended graphic reference and the explanation usefulness of only providing not is to be used for the utility model is limited.

See also Fig. 1 to shown in Figure 4, the utility model provides a kind of gas jet structure of scroll compressor, and this compressor 1 comprises a compressor main body 10, one quiet scrollwork 20, one a moving scrollwork 30 and a gas jet structure 40.

Compressor main body 10 includes a upper shell 11 and a lower shell body 12, each

housing

11,12 can be by the mutual winding of fixing-assemblys such as bolt, be formed with a hollow reservoir 13 and enclose in each

housing

11,12 inside, in this hollow reservoir 13 driving mechanism, motor and compressor assembly etc. are installed, have wherein protruded out a transmission shaft 14 at the center of motor; Because these a little compressor assemblies and mechanism are all same as the prior art, no longer give in giving unnecessary details at this.

Positioned inside at upper shell 11 has one to separate assembly 15, to be separated out a zone of high pressure 16 and a low pressure area 17 in each

housing

11,12 inside, offer an exhaust passage 151 in the central position of separating assembly 15, and be equipped with bilabiate sheet 152 in the lower position of separating assembly 15.Above upper shell 11, locate to be provided with a relief opening 18 that communicates with zone of high pressure 16 again.

Moving scrollwork 30 is placed in the aforementioned hollow reservoir 13 and can be socketed in the tail end of transmission shaft 14 by assemblies such as bearings, rotates with the revolution moving of following transmission shaft 14 and produce with respect to quiet scrollwork 20, has spiral type blade 31 on moving scrollwork 30.

Quiet scrollwork 20 corresponding moving scrollwork 30 present positions are installed in the aforementioned hollow reservoir 13, and this quiet scrollwork 20 also forms with the blade 31 of aforementioned moving scrollwork 30 and cooperates the spiral type blade 21 that compresses start, and is formed with a pressing chamber A in 21,31 in each blade.

Gas jet structure 40 comprises a bump 41, gas blowout lid 42 and a pair of

black box

43,43a, this bump 41 is to extend upward from the upper-end surface of quiet scrollwork 20, it roughly is a hollow circular cylinder, and has a vent 411, on the quiet scrollwork 20 in zone, bump 41 outside, offer an annular groove 44 (as shown in Figure 2), and offer a plurality of perforation 45 that are communicated with groove 44 and aforementioned pressing chamber A in the upper-end surface of quiet scrollwork 20.

Gas blowout lid 42 is that a circular ring body 420 has a through hole 421 in its centre, and this through hole 421 is to be socketed on the aforesaid bump 41, and then install corresponding to each lip sheet 152 position of aforementioned separation assembly 15 on the top of gas blowout lid 42; Side at gas blowout lid 42 is extended with a convex extension part 422 in addition, offer a suction port 424 in these 422 bottom surfaces, convex extension part, offer an air outlet 425 in circular ring body 420 bottom surfaces of adjacent through-holes 421 positions in addition, then be provided with between suction port 424 and the air outlet 425 and be communicated with aforementioned both a plurality of intercommunicating pores 426, this suction port 424, air outlet 425 and intercommunicating pore 426 be common to constitute gas-entered passageways 423.

Black box

43,43a (as shown in Figure 1) can be plastics, it is made that rubber or other have the material of airtight effect, it roughly is a ring, a black box 43 wherein is the outsides that are placed between quiet scrollwork 20 and the gas blowout lid 42 and are formed at groove 44, another black box 43a is placed between quiet scrollwork 20 and the gas blowout lid 42 and is formed at around groove 44 interior, with circular ring body 420 at gas blowout lid 42, each black box 43, enclose between 43a and the quiet scrollwork 20 and constitute a fluid channel B, this fluid passage B sets corresponding to 425 positions, air outlet, and communicates with each other with gas-entered passageway 423.

In addition, gas jet structure 40 of the present utility model also comprises a spacer ring 46, this spacer ring 46 is the intervals that are fixed on upper and

lower casing

11,12, and it is provided with the gas distribution channel 461 that corresponding aforementioned suction port 424 positions set, and uses from the outside of compressor main body 10 and introduces fluids such as refrigerant.

Consult shown in Figure 5, combination by above-mentioned each assembly, driving moving scrollwork 30 with transmission shaft 14 during use rotates, the blade 31 of moving scrollwork 30 will with blade 21 engagement driving of quiet scrollwork 20, fluids such as refrigerant are being poured into from the gas distribution channel 461 of spacer ring 46, this fluid gas-entered passageway 423 that suction port 424, transfer port 426, air outlet 425 are constituted of will flowing through in regular turn 425 flows into by gas blowout lid 42, black box 43 and the quiet scrollwork 20 fluid passage B that constitutes that encloses from the air outlet again; Continue it, this fluid will be bored a hole and 45 be entered the pressing chamber A from each, and spray to reach and reduce the delivery temperature effect carried out gaseous coolant by the gas of dynamic and

static scrollwork

30,20 compressions.

Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.

Claims

1. the gas jet structure of a scroll compressor, described compressor comprises a quiet scrollwork and a moving scrollwork, and this quiet scrollwork and this moving scrollwork form mutual work blade movingly respectively, and were formed with a pressing chamber between those blades, it is characterized in that this gas jet structure comprises:

One bump stretches out from an end of this quiet scrollwork;

2. the gas jet structure of scroll compressor according to claim 1 is characterized in that, this bump is a hollow circular cylinder, and this through hole is socketed on this hollow circular cylinder.

3. the gas jet structure of scroll compressor according to claim 1 is characterized in that, the convex extension part that this gas blowout lid comprises a circular ring body and certainly should circle ring body one side extends.

4. the gas jet structure of scroll compressor according to claim 3, it is characterized in that this gas-entered passageway comprises a suction port that is opened in this bottom surface, convex extension part, an air outlet that is opened in this circle ring bottom, reaches a plurality of intercommunicating pores that are communicated with this suction port and this air outlet.

5. the gas jet structure of scroll compressor according to claim 4 is characterized in that, this fluid passage is to set corresponding to this position, air outlet, and is interconnected with this gas-entered passageway.

6. the gas jet structure of scroll compressor according to claim 4 is characterized in that, also comprises a spacer ring, and this spacer ring is to be fixed on the described compressor, and this spacer ring is provided with the gas distribution channel to should the suction port position setting.