CN202250853U

CN202250853U - Scroll compressor

Info

Publication number: CN202250853U
Application number: CN2011203738584U
Authority: CN
Inventors: 严黎坚
Original assignee: Anhui Meizhi Compressor Co Ltd
Current assignee: Anhui Meizhi Compressor Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-05-30
Anticipated expiration: 2021-09-30

Abstract

The utility model discloses a scroll compressor which comprises a shell, a crank shaft arranged on the shell, a rack arranged on the crank shaft, a dynamic scroll disk arranged on the top end of the crank shaft and above the rack, a static scroll disk which is arranged above the dynamic scroll disk and is meshed with the dynamic scroll disk, a suction pipe which is arranged on the dynamic scroll disk and is communicated with a compressed cavity generated by the mutual meshing of the dynamic scroll disk and the static scroll disk, an exhaust hole which is arranged on the top of the static scroll disk and is communicated with a central compressed cavity, an exhaust non-return mechanism which is arranged above the static scroll disk and is communicated with the exhaust hole and an exhaust pipe arranged below the rack, wherein the suction pipe and the exhaust pipe stretch out of the shell, and the exhaust hole is a diverging type structure from bottom to top. According to the structure of the scroll compressor provided by the utility model, the degree of superheat when a refrigerant passes through an exhaust non-return valve is reduced, thus the noise level and vibration frequency can be effectively reduced and the release of the refrigeration capacity of the refrigerant in a high-pressure cavity can be reduced.

Description

A kind of scroll compressor

Technical field

The utility model relates to the scroll compressor field, specifically is a kind of scroll compressor that can reduce the refrigerant degree of superheat.

Background technique

The stream of refrigerant in the scroll compressor in scroll compressor is to get in the compression chamber of moving vortex and fixed scroll engagement formation from sucking pipe earlier; Moving scroll revolves round the sun around bent axle under the driving of bent axle; Refrigerant obtains energy in moving scroll and fixed scroll formation many to compression chamber; Be discharged to hyperbaric chamber through the exhaust non-return mechanism then, the exhaust passage through frame gets into low pressure chamber again, discharges the entering condenser through outlet pipe at last and participates in heat exchange.Refrigerant has certain degree of superheat after the exchange heat of evaporator; With the refrigerating efficiency that has influence on scroll compressor; And when the HTHP refrigerant after the scroll compressor compression is flowed through check valve mechanism; High reynolds number whirlpool district will be produced nearby, and the dither of high-decibel noise and moving scroll maybe be brought out.

The model utility content

The technical problem that the utility model will solve provides a kind of scroll compressor, and the refrigerant degree of superheat is too high in the existing scroll compressor of solution, influences the problem of the refrigerating efficiency of scroll compressor.

The technological scheme of the utility model is:

A kind of scroll compressor; Comprise shell; Be arranged at bent axle in the shell, be arranged at frame on the bent axle, be arranged at the top of bent axle and be positioned at the top of frame moving scroll, be arranged at moving scroll top and with the intermeshing fixed scroll of moving scroll, be arranged on the fixed scroll and exhaust port that the sucking pipe that is communicated with compression chamber that moving scroll and fixed scroll engagement form, the top that is arranged at fixed scroll are communicated with the center compression chamber, be arranged at the exhaust non-return mechanism that is communicated with exhaust port above the fixed scroll and be arranged at the outlet pipe below the frame; Described sucking pipe and outlet pipe all reach outside the housing; The shoulder hole structure that described exhaust port is made up of the top bar hole and the hole of getting out of a predicament or an embarrassing situation is characterized in that: described exhaust port is the gradually expansion type structure from the bottom up.

The described hole of topping bar is the gradually expansion type structure from the bottom up.

The described hole of topping bar includes the convergent-divergent type part and the gradually expansion type part of connection from the bottom up.

The pass in the described hole of topping bar is curve or high order curve.

The advantage of the utility model: when refrigerant gets into the exhaust non-return mechanism by compression chamber; The exhaust port at its fixed scroll top is a gradually expansion type along the refrigerant flow direction; Guaranteed that the degree of superheat that gets into the refrigerant of exhaust non-return mechanism from compression chamber reduces, and pressure and flow velocity can not suddenly change, reduce the loss of energy; Effectively reduce noise rank and vibration frequency; And reduced " cold " of refrigerant release at hyperbaric chamber, the convergent-divergent type in its hole of topping bar partly is transition structure, has guaranteed the slow transition change of the pressure and the flow velocity of refrigerant.

Description of drawings

Fig. 1 is the utility model embodiment 1 a structural representation; Wherein, the flow direction of "

Figure 2011203738584100002DEST_PATH_IMAGE001

" expression refrigerant.

Fig. 2 is the structural representation one of the utility model embodiment 1 fixed scroll; Wherein, the flow direction of "

" expression refrigerant.

Fig. 3 is the structural representation two of the utility model embodiment 1 fixed scroll; Wherein, the flow direction of "

" expression refrigerant.

Fig. 4 is the structural representation of the utility model embodiment 2 fixed scrolls; Wherein, the flow direction of "

" expression refrigerant.

Embodiment

Embodiment 1

See Fig. 1; A kind of scroll compressor; Comprise shell 1; Be arranged at bent axle 2 in the shell 1, be arranged at frame 3 on the bent axle 2, be arranged at the top of bent axle 2 and be positioned at the top of frame 3 moving scroll 4, be arranged at moving scroll 4 tops and with the intermeshing fixed scroll of moving scroll 45, be arranged on the fixed scroll 5 and exhaust port 8 that the sucking pipe 7 that is communicated with compression chamber 6 that moving scroll 4 and fixed scroll 5 engagements form, the top that is arranged at fixed scroll 5 are communicated with center compression chamber 6, be arranged at exhaust non-return mechanism 9 that fixed scroll 5 tops are communicated with exhaust port 8 and the outlet pipe 10 that is arranged at frame 3 belows, sucking pipe 7 and outlet pipe 10 all reach outside the housing 1;

See Fig. 2, Fig. 3, exhaust port 8 is a shoulder hole, shoulder hole comprise top bar hole 11 with get out of a predicament or an embarrassing situation hole 12, the hole 11 of topping bar is the gradually expansion type structure from the bottom up, and its pass is curve (see figure 2) or high order curve (see figure 3).

See Fig. 1; The stream of refrigerant in scroll compressor is: 6 li of compression chambers that get into earlier moving vortex and fixed scroll engagement formation from sucking pipe 7; Around the bent axle revolution, refrigerant manyly obtains energy in to compression chamber what moving scroll and fixed scroll formed to moving scroll, then through exhaust port 8,9 discharges of exhaust non-return mechanism under the driving of bent axle 2; Successively through hyperbaric chamber 13 and low pressure chamber 14, discharge the entering condenser through outlet pipe 10 at last and participate in heat exchange again.When refrigerant passed through exhaust port 8, its degree of superheat reduced, and effectively reduced the vibration frequency of moving scroll.

Embodiment 2

A kind of scroll compressor, with embodiment 1, its difference is: see Fig. 4; Exhaust port 8 is a shoulder hole; Shoulder hole comprise top bar hole 11 with get out of a predicament or an embarrassing situation hole 12, the hole 11 of topping bar includes convergent-divergent type part and gradually expansion type part from the bottom up, and convergent-divergent type part and gradually expansion type pass partly are curve or high order curve; Convergent-divergent type is a transition structure partly, has guaranteed the slow transition change of the pressure and the flow velocity of refrigerant.

Claims

1. scroll compressor; Comprise shell; Be arranged at bent axle in the shell, be arranged at frame on the bent axle, be arranged at the top of bent axle and be positioned at the top of frame moving scroll, be arranged at moving scroll top and with the intermeshing fixed scroll of moving scroll, be arranged on the fixed scroll and exhaust port that the sucking pipe that is communicated with compression chamber that moving scroll and fixed scroll engagement form, the top that is arranged at fixed scroll are communicated with the center compression chamber, be arranged at the exhaust non-return mechanism that is communicated with exhaust port above the fixed scroll and be arranged at the outlet pipe below the frame; Described sucking pipe and outlet pipe all reach outside the housing; The shoulder hole structure that described exhaust port is made up of the top bar hole and the hole of getting out of a predicament or an embarrassing situation is characterized in that: described exhaust port is the gradually expansion type structure from the bottom up.

2. a kind of scroll compressor according to claim 1 is characterized in that: the described hole of topping bar is the gradually expansion type structure from the bottom up.

3. a kind of scroll compressor according to claim 1 is characterized in that: the described hole of topping bar includes the convergent-divergent type part and the gradually expansion type part of connection from the bottom up.

4. according to claim 2 or 3 described a kind of scroll compressors, it is characterized in that: the pass in the described hole of topping bar is curve or high order curve.