CN205990996U - Compressor - Google Patents

Abstract

The utility model discloses a kind of compressor, belong to compressor technical field, for solve existing apparatus in bent axle interfere, the low problem of crankshaft strength but design.This utility model compressor includes bent axle and rotor core, also includes the baffle plate of lamellar, and the one side of baffle plate is fitted on the major axis trimming position supporting surface of bent axle, and another side is fitted on rotor core.Baffle plate is circulus, and the inner ring of baffle plate includes arc and straightway, and arc is connected with straightway formation closing structure；Bent axle is located in the inner ring of baffle plate.This utility model compressor solves the problems, such as to interfere between the knuckle of rotor core circular arc and straight line junction and bent axle in existing structure it is ensured that will not tilt, not interfere with the axiality of stator rotor after rotor core assembling；It is not required to arrange back chipping groove it is ensured that bent axle has enough intensity in the root of the major axis trimming position supporting surface of bent axle.

Description

Compressor

Technical field

This utility model is related to compressor technical field, more particularly, to a kind of compressor.

Background technology

Micro-compressor refers to that refrigerating capacity is less than the refrigeration compressor of 1KW, and small volume, lightweight, endurance is strong, noise Low and energy consumption is low.

Existing micro-compressor includes rotor core and bent axle, the major axis trimming position supporting surface phase of rotor core and bent axle Contact.For in theory, the circular arc of rotor core inner ring and straight line are directly connected to, but in practice as high die-punch mill There is knuckle the junction of the circular arc and straight line that damage rotor core.

In the case that the junction of rotor core circular arc and straight line is formed with knuckle, as depicted in figs. 1 and 2, such as , if the root of the major axis trimming position supporting surface 11 of bent axle 1 is provided with transition angle 13, this transition angle 13 can be with rotor ferrum for fruit Interference region 10 is produced between core 2；As shown in figures 1 and 3, can be in the root of the major axis trimming position supporting surface 11 of bent axle 1 Setting back chipping groove 12 is to avoid the knuckle of rotor core, but the too conference of the depth of back chipping groove 12 reduces the intensity of bent axle 1, depth Spend purpose that is too little and not reaching back chipping (avoidance).

Utility model content

The purpose of this utility model is that proposing a kind of bent axle will not interfere, not drop low intensive compressor.

For reaching this purpose, this utility model employs the following technical solutions：

A kind of compressor, including bent axle and rotor core, also includes the baffle plate of lamellar, the one side of described baffle plate is fitted in institute State on the major axis trimming position supporting surface of bent axle, another side is fitted on described rotor core.

Particularly, described baffle plate is circulus, and the inner ring of described baffle plate includes arc and straightway, described arc Be connected formation closing structure with straightway；Described bent axle is located in the inner ring of described baffle plate.

Further, form the escape groove of indent at least one junction of described arc and straightway.

Further, it is respectively formed escape groove in two junctions of described arc and straightway, two described escape groove Shape identical.

Particularly, the cross section of described escape groove is in circular arc, rectangle or ellipse.

Particularly, form gap between the medial wall of described baffle plate and described bent axle.

Further, the width h in described gap is less than or equal to 0.4 times of the height H of described major axis trimming position supporting surface.

Particularly, the root in the major axis trimming position supporting surface of described bent axle is formed with transition angle.

Further, the radius at described transition angle is less than the width h in described gap.

Particularly, described compressor is micro-compressor.

This utility model compressor arranges baffle plate between the major axis trimming position supporting surface and rotor core of bent axle, solves The problem interfering between the knuckle of rotor core circular arc and straight line junction and bent axle in existing structure is it is ensured that turn Will not tilt, not interfere with the axiality of stator-rotator after sub- iron core assembly；Because the major axis trimming position supporting surface in bent axle It is provided with baffle plate and rotor core between, bent axle will not interfere, so the root of the major axis trimming position supporting surface in bent axle Portion is not required to arrange back chipping groove it is ensured that bent axle has enough intensity.

Brief description

Fig. 1 is the structural representation of existing bent axle；

Fig. 2 is the schematic diagram of existing rotor core and the first fit structure of bent axle；

Fig. 3 is the schematic diagram of existing rotor core and bent axle second fit structure；

Fig. 4 is the structural representation of the compressor that this utility model preferred embodiment one provides；

Fig. 5 is the partial schematic diagram at A in Fig. 4；

Fig. 6 is the front view of the baffle plate that this utility model preferred embodiment one provides；

Fig. 7 is the baffle plate of this utility model preferred embodiment one offer and the fit structure schematic diagram of bent axle.

In figure：

1st, bent axle；2nd, rotor core；3rd, baffle plate；4th, gap；10th, interference region；11st, major axis trimming position supporting surface；12、 Back chipping groove；13rd, transition angle；31st, arc；32nd, straightway；33rd, escape groove.

Specific embodiment

Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by specific embodiment.

Preferred embodiment one：

This preferred embodiment discloses a kind of compressor.As shown in Figure 4 and Figure 5, this compressor includes bent axle 1, rotor core 2 With the baffle plate 3 of lamellar, the one side of baffle plate 3 is fitted on the major axis trimming position supporting surface 11 of bent axle 1, and another side is fitted in rotor On iron core 2.

Baffle plate 3 is set between the major axis trimming position supporting surface 11 and rotor core 2 of bent axle 1, solves existing structure The problem that interferes between the knuckle of the circular arc of middle rotor core 2 and straight line junction and bent axle 1 is it is ensured that rotor core Will not tilt, not interfere with the axiality of stator-rotator after 2 assemblings.

The concrete structure of baffle plate 3 does not limit, and can separate the major axis trimming position supporting surface 11 of bent axle 1 and rotor core 2 ?.Preferably, baffle plate 3 is circulus, and the inner ring of baffle plate 3 includes arc 31 and straightway 32, arc 31 and straight line Section 32 is connected formation closing structure；Bent axle 1 is located in the inner ring of baffle plate 3.

This baffle plate 3 can be a newly-increased structure or the baffle plate of existing compressor is carried out transformation form.Tool Body, the internal diameter of existing annular baffle is reduced to the root of the major axis trimming position supporting surface 11 slightly larger than bent axle 1 Diameter.

As shown in Figure 6 and Figure 7, in order to avoid the transition angle between arc 31 and straightway 32 and bent axle 1 interfere, The escape groove 33 of indent can be formed at least one junction of arc 31 and straightway 32, this escape groove 33 corresponds to bent axle The transition structure of arcwall face and plane junction on 1, the area of escape groove 33 is more than the area of the interference region of existing structure, protects Card compression function normal work.

In order to make compressor reach more preferable working effect, it is respectively formed in two junctions of arc 31 and straightway 32 Escape groove 33, the shape of two escape groove 33 is identical and each escape groove 33 corresponds to the side of arcwall face and plane on bent axle 1 even Connect the transition structure at place.

The shape of cross section of escape groove 33 does not limit, and is avoided that the transition angle between arc 31 and straightway 32 and bent axle 1 Between interfere.Preferably, the cross section of escape groove 33 is in circular arc, rectangle or ellipse, processing technique is simple, plus Work efficiency high.

On the basis of said structure, form gap 4 between the medial wall of baffle plate 3 and bent axle 1, to avoid affecting bent axle 1 normal work.The width h (vertical dimension between from bent axle 1 outer surface to the inwall of baffle plate 3) in gap 4 is preferably less than Equal to 0.4 times of height H of major axis trimming position supporting surface 11 it is ensured that also will not when there is transverse shakiness in bent axle 1 or baffle plate 3 The major axis trimming position supporting surface 11 making bent axle 1 passes through the inner ring of baffle plate 3 to collide rotor core 2.

Because being provided with baffle plate 3 between the major axis trimming position supporting surface 11 and rotor core 2 of bent axle 1, bent axle 1 will not Interfere, so the root in the major axis trimming position supporting surface 11 of bent axle 1 is not required to arrange back chipping groove it is ensured that bent axle 1 has Enough intensity.Preferably, the root in the major axis trimming position supporting surface 11 of bent axle 1 is formed with transition angle 13, it is to avoid growing The root of axle trimming position supporting surface 11 forms stress concentration, further increases the intensity of bent axle 1.

Side in order to ensure baffle plate 3 can be fitted tightly on the major axis trimming position supporting surface 11 of bent axle 1, transition angle 13 Radius be less than the width h in gap 4, that is, whole transition angle 13 is located in the structure of gap 4 it is ensured that compressor operating is more steady.

Preferred embodiment two：

This preferred embodiment discloses a kind of micro-compressor.This micro-compressor includes bent axle, rotor core and lamellar Baffle plate, the one side of baffle plate is fitted on the major axis trimming position supporting surface of bent axle, and another side is fitted on rotor core.Solve The problem that interferes between the knuckle of rotor core circular arc and straight line junction and bent axle in existing structure is it is ensured that rotor Will not tilt, not interfere with the axiality of stator-rotator after iron core assembly.

Note, above are only preferred embodiment of the present utility model and the know-why used.Those skilled in the art It will be appreciated that this utility model is not limited to specific embodiment described here, can carry out various for a person skilled in the art Significantly change, readjust and substitute without departing from protection domain of the present utility model.Therefore although being implemented by above Example is described in further detail to this utility model, but this utility model is not limited only to above example, is not taking off In the case of this utility model design, other Equivalent embodiments more can also be included, and scope of the present utility model is by institute Attached right determines.

Claims (10)

1. a kind of compressor, including bent axle (1) and rotor core (2) it is characterised in that also including the baffle plate (3) of lamellar, described The one side of baffle plate (3) is fitted on major axis trimming position supporting surface (11) of described bent axle (1), and another side is fitted in described rotor On iron core (2).

2. compressor according to claim 1 it is characterised in that described baffle plate (3) be circulus, described baffle plate (3) Inner ring include arc (31) and straightway (32), described arc (31) be connected with straightway (32) formation closure knot Structure；Described bent axle (1) is located in the inner ring of described baffle plate (3).

3. compressor according to claim 2 is it is characterised in that in described arc (31) and straightway (32) at least One junction forms the escape groove (33) of indent.

4. compressor according to claim 3 is it is characterised in that in described arc (31) and straightway (32) two Junction is respectively formed escape groove (33), and the shape of two described escape groove (33) is identical.

5. the compressor according to claim 3 or 4 it is characterised in that described escape groove (33) cross section be in circular arc, Rectangle or ellipse.

6. the compressor according to any one of claim 2 to 4 is it is characterised in that in the medial wall of described baffle plate (3) and institute State and between bent axle (1), form gap (4).

7. compressor according to claim 6 is it is characterised in that the width h of described gap (4) is less than or equal to described major axis 0.4 times of the height H of trimming position supporting surface (11).

8. compressor according to claim 6 is it is characterised in that major axis trimming position supporting surface in described bent axle (1) (11) root is formed with transition angle (13).

9. compressor according to claim 8 is it is characterised in that the radius at described transition angle (13) is less than described gap (4) width h.

10. the compressor according to any one of Claims 1-4 is it is characterised in that described compressor is micro-compressor.