CN2886126Y

CN2886126Y - Concave valve plate for refrigerator compressor

Info

Publication number: CN2886126Y
Application number: CN 200620055313
Authority: CN
Inventors: 王慧莲; 陈忠华; 陈艳阳; 王松; 吴小凌
Original assignee: GUANGZHOU REFRIGERATION CO Ltd
Current assignee: WanBao Group Compressor Co., Ltd.
Priority date: 2006-02-24
Filing date: 2006-02-24
Publication date: 2007-04-04
Anticipated expiration: 2016-02-24

Abstract

The utility model relates to a valve plate of a refrigeration compressor, wherein a smooth valve plate is equipped with air outlet holes, wherein a rectangular concave slot with large area is processed. An air outlet valve disc, a spring disc and a lift limiter are overlapped in the rectangular concave slot outwardly in succession, and fastener devices are equipped on the corresponding positions on both terminals of the rectangular concave slot of the valve plate and on both terminals of the lift limiter compresses and fixes the air outlet valve disc, the spring disc and the lift limiter in the rectangular concave slot of the valve plate. The utility model can reduce gap cubage and promote the efficiency of the compressors. The valve plate becomes thinner to reduce the cubage of the compressors, and a fastener type or a rivet type lift limiter is adopted to simplify the production and installation crafts.

Description

The spill valve plate that a kind of freezer compressor is used

Technical field

The utility model relates to a kind of cooling compressor, the valve plate that a kind of specifically freezer compressor is used.

Background technique

Compressor generally is made up of three parts, and the one, housing, the 2nd, be positioned at the motor driving part of the housing first half, the 3rd, be positioned at the compression member of housing Lower Half.The motor driving part branch comprises: stator, rotor and rotating shaft.Compression member comprises: cylinder, bent axle, connecting rod, piston, cylinder head etc. are provided with air intake valve and drain tap between cylinder and cylinder head.

The critical component compression member of compressor mainly is made up of cylinder, valve plate and piston etc.

The valve board structure of compressor such as Fig. 1 in the prior art--shown in Figure 3, valve plate 5 is provided with exhaust port 6, above exhaust port 6, be respectively equipped with exhaust valve plate 9, second exhaust valve plate 8, outlet valve pad 7, lift limiter 1, reed 2, fixed plate 3 etc., the two ends of these assemblies are equipped with mounting hole, corresponding position also is provided with mounting hole on the valve plate 5, and the mounting hole that passes them with two pins 4 is fixedly mounted on said modules on the valve plate 5.There are the following problems for this valve board structure:

1. complex structure, assembly is many, and sealing is relatively poor,

2. the exhaust port volume on the valve plate is bigger, causes clearance volume big, and in exhaust process, the pressurized gas in the valve upper air-vent can't be discharged, and influences compressor efficiency.

The model utility content

The purpose of this utility model is to have proposed the spill valve plate that a kind of freezer compressor is used, and it is simple in structure, is easy to make, and the exhaust port volume of this valve plate is little, can improve the exhaust of compressor, improves compressor efficiency.

The utility model is realized by following technical solution:

Be provided with exhaust port at a smooth valve plate, valve plate upper air-vent place process area bigger go out elongate recesses, exhaust valve plate, reed, lift limiter stacked from the inside to the outside successively place elongate recesses, the seizing type device of the elongate recesses two ends corresponding position by being located at lift limiter two ends and valve plate is fixed exhaust valve plate, reed, lift limiter in the elongate recesses of valve plate.

Identical design is: be provided with exhaust port at a smooth valve plate, valve plate upper air-vent place process area bigger go out elongate recesses, near an end of elongate recesses on the valve plate, get out a mounting hole, exhaust valve plate, reed, also be provided with mounting hole near one end of lift limiter, with exhaust valve plate, reed, lift limiter stacks successively from the inside to the outside and places elongate recesses, pass their mounting hole and the mounting hole on the valve plate and rivet tightly by a rivet, make exhaust valve plate like this, reed, lift limiter is fixed in the elongate recesses of valve plate with the cantilever structure formula.

The beneficial effects of the utility model are: the spill valve plate can reduce clearance volume, improves compressor efficiency; The attenuation of valve plate thickness, the volume of minimizing compressor; Adopt seizing type or rivet type lift limiter, simplify and make mounting process.

Description of drawings

Fig. 1 is a prior art refrigeration compressor valve board structure schematic representation;

Fig. 2 is an A-A section plan among Fig. 1;

Fig. 3 is an I part enlarged view among Fig. 2;

Fig. 4 is the utility model structural representation;

Fig. 5 is a B-B section plan among Fig. 4;

Fig. 6 is the utility model alternative plan schematic representation;

Fig. 7 is a C-C plan cross-section enlarged view among Fig. 6;

Fig. 8 is the utility model third party case schematic representation;

Fig. 9 is a D-D plan cross-section enlarged view among Fig. 8.

1--lift limiter among the figure, 2--reed, 3--fixed plate, 4--pin, 5--valve plate, 6--exhaust port, 7--outlet valve pad, 8--second exhaust valve plate, 9--exhaust valve plate, 10--groove, 11--rivet.

Embodiment

Embodiment one

With reference to figure 4 and Fig. 5, be provided with exhaust port 6 at a smooth valve plate 5, valve plate 5 upper air-vents 6 places process area bigger go out elongate recesses 10, exhaust valve plate 9, reed 2, lift limiter 1 stacked from the inside to the outside successively place elongate recesses 10, the seizing type device of the elongate recesses 10 two ends corresponding positions by being located at lift limiter 1 two ends and valve plate 5 is fixed exhaust valve plate 9, reed 2, lift limiter 1 in the elongate recesses 10 of valve plate 5, wherein, reed 2 adopts two fulcrum structures, and valve block 9 adopts the single-cantilever structure.

Embodiment two

With reference to figure 6 and Fig. 7, as embodiment one improvement, the elongate recesses 10 on the valve plate 5 is made side direction and is enlarged, and is convenient to gas and discharges smoothly, reduces exhaust resistance.

Embodiment three

With reference to figure 8 and Fig. 9, the seizing type lift limiter fixing device with embodiment one changes rivet type lift limiter fixing device into, make an end of lift limiter become cantilever structure, reed and valve block are the single-cantilever structure, and this structure is more convenient for installing, and solid and reliable.

Concrete scheme is: be provided with exhaust port 6 at a smooth valve plate 5, valve plate 5 upper air-vents 6 places process area bigger go out elongate recesses 10, near an end of elongate recesses 10 on the valve plate 5, get out a mounting hole, exhaust valve plate 9, reed 2, also be provided with mounting hole near one end of lift limiter 1, with exhaust valve plate 9, reed 2, lift limiter 1 stacks successively from the inside to the outside and places elongate recesses 10, pass their mounting hole and the mounting hole on the valve plate 5 and rivet tightly by a rivet, make exhaust valve plate 9 like this, reed 2, lift limiter 1 is fixed in the elongate recesses 10 of valve plate 5 with the cantilever structure formula.

Above-mentioned three embodiments' valve plate 5 all adopts the steel manufacturing, replaces foundry goods; The valve plate 5 of concave structure can shorten exhaust port length, reduces clearance volume, improves refrigerating capacity, improves compressor efficiency; Simultaneously, the attenuation of whole valve plate thickness can reduce the volume of compressor; Adopt seizing type or rivet type lift limiter, simplify and make mounting process; The utility model can improve compressor performance coefficient (COP) 0.02-0.05.

Claims

1. spill valve plate that freezer compressor is used, a smooth valve plate (5) is provided with exhaust port (6), it is characterized in that: valve plate (5) upper air-vent (6) locate to process area bigger go out elongate recesses (10), with exhaust valve plate (9), reed (2), lift limiter (1) stacks successively from the inside to the outside and places elongate recesses (10), and the seizing type device of elongate recesses (10) the two ends corresponding position by being located at lift limiter (1) two ends and valve plate (5) is with exhaust valve plate (9), reed (2), lift limiter (1) is fixed in the elongate recesses (10) of valve plate (5).

2. spill valve plate that freezer compressor is used, a smooth valve plate (5) is provided with exhaust port (6), it is characterized in that: valve plate (5) upper air-vent (6) locate to process area bigger go out elongate recesses (10), near an end of the last elongate recesses (10) of valve plate (5), get out a mounting hole, exhaust valve plate (9), reed (2), also be provided with mounting hole near one end of lift limiter (1), with exhaust valve plate (9), reed (2), lift limiter (1) stacks successively from the inside to the outside and places elongate recesses (10), one rivet passes their mounting hole and the connection of riveting tightly of the mounting hole on the valve plate (5), makes exhaust valve plate (9), reed (2), lift limiter (1) is fixed in the elongate recesses 10 of valve plate (5) with the cantilever structure formula.

3. the spill valve plate that freezer compressor as claimed in claim 1 or 2 is used is characterized in that: the elongate recesses (10) on the valve plate (5) is made side direction and is enlarged.