CN206190474U - Straight line is resonance structure and sharp compressor for compressor - Google Patents

Abstract

The utility model provides a straight line is resonance structure and sharp compressor for compressor, the straight line is for the compressor among the resonance structure, the preceding backup pad of both ends difference be assembled between/be connected between and back backup pad of backup pad and screw during the screw passes, be equipped with the first spring assembly of a plurality of between preceding backup pad and the well backup pad, first spring assembly includes first outer spring and nested first inner spring in first outer spring, be equipped with a plurality of second spring assembly between well backup pad and the back backup pad, the second spring assembly includes second outer spring and nested second inner spring in the second outer spring. The beneficial effects of the utility model are that: under the line condition directly that does not strengthen the resonance spring, can bear great load, reduce the material and the processing cost input of spring, improve sharp compressor moving part's resonance frequency, compact structure is applicable to the miniaturization of sharp compressor, and just the appearance of sharp compressor is changeed and is makeed into approximately shape ball, is favorable to reducing the vibration noise of sharp compressor.

Description

Linear compressor resonance structure and linear compressor

Technical field

The utility model is related to linear compressor technical field, more particularly to a kind of linear compressor resonance structure and Linear compressor.

Background technology

After the startup that is powered, the rotary motion of rotor is converted into conventional rotary compressor by toggle The linear reciprocating motion of piston, this kind of compressor mechanical efficiency is low, and noise vibration is big.Linear compressor is driven using linear electric motors Piston does linear reciprocating motion, and without intermediate conversion mechanism, mechanical efficiency is high, and noise vibration is small, and startability is good, thus obtains wide General application.Linear compressor is divided into moving-magnetic type, moving-coil type and moving-iron type, at present using it is more be moving-magnetic type.Moving-magnetic type is straight The moving component of wire compression machine is piston, magnet, resonant spring and gas spring, when working frequency and the motion of linear compressor When the intrinsic frequency of part is consistent, best performance.Linear compressor improves straight line pressure by the resonator system of linear compressor The intrinsic frequency of contracting machine moving component, the resonator system of linear compressor includes resonant spring and resonant spring supporting construction group Into.

In the prior art in order to improve the intrinsic frequency of linear compressor moving component, the line of resonant spring is often increased Footpath, can so reduce the shear strength of spring, while improve material cost；The increase of spring line footpath, corresponding straight line compression Machine overall volume also becomes big, causes waste spatially；Further, since the limitation of linear compressor forms of motion, so typically Based on oblong, the increase of spring line footpath can change the contour structures of linear compressor to linear compressor, be unfavorable for whole machine The reduction of noise vibration.

Utility model content

The purpose of this utility model is to provide a kind of linear compressor resonance structure and linear compressor, solves to be not added with The line footpath of big resonant spring can also improve the problem of the intrinsic frequency of linear compressor moving component.

The utility model provides a kind of linear compressor resonance structure, including front end panel, middle supporting plate, rear bearing sheet And screw, screw through middle supporting plate and screw two ends difference assembly connection front end panel and rear bearing sheet, front end panel and Several the first groups of springs are equipped between middle supporting plate, the first groups of springs includes the first outer spring and is nested in the first outer spring The first interior inner spring, is equipped with several second spring groups between middle supporting plate and rear bearing sheet, second spring group includes the Two outer springs and the second inner spring being nested in the second outer spring.

Further, also including magnet set, middle supporting plate is connected to the inwall of magnet set, the first groups of springs and second spring Group is respectively positioned on the inside of magnet set.

Further, front end panel inner side is provided with the first external groove that can engage the first outer spring and can engage first First inner groovy of inner spring；Rear bearing sheet inner side is provided with the second external groove that can engage the second outer spring and can engage the Second inner groovy of two inner springs.

Further, the side of middle supporting plate is provided with the first outer lug that can engage the first outer spring and can engage First internal projection of one inner spring, the opposite side of middle supporting plate is provided with the second outer lug that can engage the second outer spring and can Engage the second internal projection of the second inner spring.

Further, one end of the first outer spring and the first external groove interference fit, one end of the first inner spring and first Inner groovy interference fit；One end of second outer spring and the second external groove interference fit, in one end of the second inner spring and second Groove interference fit.

Further, the other end of the first outer spring and the first outer lug gap coordinate, the other end of the first inner spring with First internal projection gap coordinates, and the other end of the second outer spring and the second outer lug gap coordinate, the other end of the second inner spring Coordinate with the second internal projection gap.

Further, several first groups of springs are distributed uniformly and circumferentially, and several second spring groups are circumferentially square To being uniformly distributed.

The utility model also provides a kind of linear compressor, including above-mentioned linear compressor resonance structure.

Compared with prior art, linear compressor resonance structure of the present utility model has the characteristics that and advantage：

1st, linear compressor resonance structure of the present utility model, under conditions of the line footpath for not increasing resonant spring, can Larger load is born, the material cost input of spring is reduced, the resonant frequency of linear compressor moving component is improved；

2nd, linear compressor resonance structure of the present utility model, compact conformation reduces the volume of linear compressor, straight line The profile of compressor is easily fabricated to almost spherical, reduces the vibration noise of linear compressor.

After specific embodiment of the present utility model is read in conjunction with the figure, will become more with advantage the characteristics of the utility model Plus it is clear.

Brief description of the drawings

In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are these Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also Other accompanying drawings can be obtained according to these accompanying drawings.

Fig. 1 is the explosive view of the utility model embodiment linear compressor resonance structure；

Fig. 2 is the profile of the utility model embodiment linear compressor resonance structure part；

Fig. 3 is the structure chart of front end panel in the utility model embodiment linear compressor resonance structure；

Fig. 4 is A-A profiles in Fig. 3；

Fig. 5 is the profile of middle supporting plate in the utility model embodiment linear compressor resonance structure；

1st, front end panel, the 11, first external groove, the 12, first inner groovy, 2, middle supporting plate, the 211, first outer lug, 212, First internal projection, the 221, second outer lug, the 222, second internal projection, 3, rear bearing sheet, 4, screw, 5, magnet set, outside 61, first Spring, the 62, first inner spring, the 71, second outer spring, the 72, second inner spring.

Specific embodiment

As shown in Figures 1 to 5, the present embodiment provides a kind of linear compressor resonance structure, and screw 4 passes through middle supporting plate 2 and the two ends difference assembly connection front end panel 1 and rear bearing sheet 3 of screw 4, middle supporting plate 2 is connected to the inwall of magnet set 5, It is equipped with several the first groups of springs between front end panel 1 and middle supporting plate 2, the first groups of springs includes the first outer spring 61 and embedding The first inner spring 62 in the first outer spring 61 is placed on, several second springs are equipped between middle supporting plate 2 and rear bearing sheet 3 Group, second spring group includes the second outer spring 71 and the second inner spring 72 being nested in the second outer spring 71, the first groups of springs With the inside that second spring group is respectively positioned on magnet set 5.Several first groups of springs are distributed uniformly and circumferentially, and several second Groups of springs is distributed uniformly and circumferentially.When linear compressor is designed, if the size of piston and stroke determine, compressor Discharge capacity determine, want improve compressor intrinsic frequency, according to formula f=(1/2pi) (k/m) ^0.5, in formula, f is frequency, K is the rigidity of spring, and m is quality, it is contemplated that the rigidity of raising spring, rigidity k=(Gd^3)/(8nD^3) of spring, in formula, d It is the line footpath of spring, D is the central diameter of spring, and simplest method is the line warp for increasing spring wire, and the consequence for producing therewith is bullet The shear strength reduction of spring, material cost increase, and the overall dimensions of compressor become big.Linear compressor in the present embodiment is with humorous Shake structure, using the structure type of groups of springs, under conditions of the line footpath for not increasing resonant spring, larger load can be born, The material cost input of spring is reduced, the resonant frequency of linear compressor moving component is improved；Compact conformation, reduces straight line compression The volume of machine, the profile of linear compressor is easily fabricated to almost spherical, reduces the vibration noise of linear compressor.

Linear compressor resonance structure in the present embodiment, the inner side of front end panel 1 is provided with and can engage the first outer spring 61 the first external groove 11 and the first inner groovy 12 of the first inner spring 62 can be engaged；The inner side of rear bearing sheet 3 is provided with cocker Before in the second external groove for closing the second outer spring and the second inner groovy that the second inner spring can be engaged, its structure and accompanying drawing 3,4 The first external groove 11, the first inner groovy 12 in supporting plate 1 are similar to.The side of middle supporting plate 2 is provided with can engage the first outer bullet First outer lug 211 of spring 61 and the first internal projection 212 of the first inner spring 62 can be engaged, the opposite side of middle supporting plate 2 sets It is equipped with the second outer lug 221 that can engage the second outer spring 71 and the second internal projection 222 that the second inner spring 72 can be engaged.The One end of one outer spring 61 and the interference fit of the first external groove 11, one end and the interference of the first inner groovy 12 of the first inner spring 62 are matched somebody with somebody Close；One end of second outer spring 71 and the second external groove interference fit, one end of the second inner spring 72 and the second inner groovy interference Coordinate.The other end of the first outer spring 61 and the gap of the first outer lug 211 coordinate, in the other end and first of the first inner spring 62 Raised 212 gaps coordinate, the other end of the second outer spring 71 and the cooperation of the gap of the second outer lug 221, the second inner spring 72 it is another One end coordinates with the gap of the second internal projection 222.In this way, it is easy to the assembling of the first groups of springs and second spring group, and after assembling Compact conformation, firmly.

The present embodiment also provides a kind of linear compressor, including the present embodiment above-mentioned linear compressor resonance structure, Will not be repeated here.

Certainly, described above is not that, to limitation of the present utility model, the utility model is also not limited to the example above, Change, remodeling, addition or replacement that those skilled in the art are made in essential scope of the present utility model, also should Belong to protection domain of the present utility model.

Claims (8)

1. a kind of linear compressor resonance structure, it is characterised in that：Including front end panel, middle supporting plate, rear bearing sheet and spiral shell Nail, screw distinguishes assembly connection front end panel and rear bearing sheet, front end panel and middle branch through the two ends of middle supporting plate and screw Several the first groups of springs are equipped between fagging, the first groups of springs includes the first outer spring and is nested in the first outer spring First inner spring, is equipped with several second spring groups between middle supporting plate and rear bearing sheet, second spring group is included outside second Spring and the second inner spring being nested in the second outer spring.

2. linear compressor resonance structure according to claim 1, it is characterised in that：Also include magnet set, middle support Plate is connected to the inwall of magnet set, and the first groups of springs and second spring group are respectively positioned on the inside of magnet set.

3. linear compressor resonance structure according to claim 1 and 2, it is characterised in that：Front end panel inner side is set There are the first external groove that can engage the first outer spring and the first inner groovy that the first inner spring can be engaged；Rear bearing sheet inner side sets It is equipped with the second external groove that can engage the second outer spring and the second inner groovy that the second inner spring can be engaged.

4. linear compressor resonance structure according to claim 3, it is characterised in that：The side of middle supporting plate is provided with The first outer lug that the first outer spring can be engaged and the first internal projection that the first inner spring can be engaged, the opposite side of middle supporting plate It is provided with the second outer lug that can engage the second outer spring and the second internal projection that the second inner spring can be engaged.

5. linear compressor resonance structure according to claim 4, it is characterised in that：One end of first outer spring and the One external groove interference fit, one end of the first inner spring and the first inner groovy interference fit；One end of second outer spring and second External groove interference fit, one end of the second inner spring and the second inner groovy interference fit.

6. linear compressor resonance structure according to claim 5, it is characterised in that：The other end of the first outer spring with First outer lug gap coordinates, and the other end of the first inner spring and the first internal projection gap coordinate, the other end of the second outer spring Coordinate with the second outer lug gap, the other end of the second inner spring and the second internal projection gap coordinate.

7. the linear compressor resonance structure according to any one of claim 1 or 2, it is characterised in that：Several first Groups of springs is distributed uniformly and circumferentially, and several second spring groups are distributed uniformly and circumferentially.

8. a kind of linear compressor, it is characterised in that including the linear compressor any one of claim 1 to 7 with humorous Shake structure.