CN204436795U - Compressor - Google Patents

Abstract

The utility model discloses a kind of compressor, comprise: motor and compressing mechanism, motor comprises stators and rotators, stator comprises stator iron core and the secondary winding of winding on stator iron core, compressing mechanism comprises bent axle, cylinder assembly and two bearings, two bearings are located at the axial two ends of cylinder assembly respectively, one end of bent axle is connected with rotor, the other end runs through cylinder assembly and two bearings, cylinder assembly comprises cylinder, cylinder has compression chamber, at least one in two bearings is formed with the valve seat for installing exhaust valve plate, one end on the length direction of valve seat is formed with the relief opening be communicated with compression chamber, the other end on the length direction of valve seat is formed with the mounting hole for fixing exhaust valve plate, the center of mounting hole and the angle β between the line of centres of relief opening and secondary winding central direction meet: 0 °≤β≤45 °.According to compressor of the present utility model, effectively can improve the problem on deformation of valve seat, improve efficiency and the reliability of compressor.

Description

Compressor

Technical field

The utility model relates to compressor apparatus field, especially relates to a kind of compressor.

Background technique

Point out in correlation technique, for improving the efficiency of compressor, the motor of compressor does larger and larger, but, because motor is comparatively large on the impact of compressing mechanism, thus when compressor does large, then need the rigid phase of compressing mechanism to do height, to reduce the distortion of compressing mechanism, improve efficiency and the reliability of compressor entirety.The moment of electric motor starting, because the secondary winding of motor first sets up magnetic field than main winding, this only has in a flash secondary winding to produce electromagnet pull, and not main winding produces electromagnet pull, thus generation maximal unbalanced force, just be easy to deform when the rigidity of compressing mechanism is not enough, wherein, the valve seat of compressing mechanism is the region that in whole compressing mechanism, rigidity is the weakest, like this, in the moment of electric motor starting, valve seat the most easily deforms, and causes the reliability decrease of compressor, overall performance to decline.

Model utility content

The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, the utility model is to propose a kind of compressor, and described compressor can improve the problem on deformation of valve seat effectively.

According to compressor of the present utility model, comprising: motor, described motor comprises stators and rotators, and described stator comprises stator iron core and the secondary winding of winding on described stator iron core, and compressing mechanism, described compressing mechanism comprises bent axle, cylinder assembly and two bearings, described two bearings are located at the axial two ends of described cylinder assembly respectively, one end of described bent axle is connected with described rotor, the other end runs through described cylinder assembly and described two bearings, described cylinder assembly comprises cylinder, described cylinder has compression chamber, at least one in described two bearings is formed with the valve seat for installing exhaust valve plate, one end on the length direction of described valve seat is formed with the relief opening be communicated with described compression chamber, the other end on the length direction of described valve seat is formed with the mounting hole for fixing described exhaust valve plate, the center of described mounting hole and the angle β between the line of centres of described relief opening and described secondary winding central direction meet: 0 °≤β≤45 °.

According to compressor of the present utility model, effectively can improve the problem on deformation of valve seat, improve efficiency and the reliability of compressor.

Alternatively, described β meets further: 0 °≤β≤30 °.

Alternatively, described β meets further: β=0 °.

Alternatively, described cylinder is multiple, is provided with dividing plate between two often adjacent described cylinders.

Alternatively, each described bearing is formed with a described valve seat respectively.

Further, the center of the described mounting hole of two described valve seats overlaps with the projection of the line of centres on reference level of described relief opening, and wherein said reference level is the plane perpendicular to described crankshaft center line.

Alternatively, described rotor is located in described stator rotationally.

Particularly, described motor is single-phase constant-seed motor.

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.

Accompanying drawing explanation

Fig. 1 is the generalized section of the compressor according to the utility model embodiment;

Fig. 2 is the plan view of the compressing mechanism shown in Fig. 1;

Fig. 3 is the worm's eye view of the motor shown in Fig. 1.

Reference character:

100: compressor;

1: housing;

2: motor; 21: rotor; 22: stator; 221: secondary winding;

3: compressing mechanism; 31: bearing; 311: main bearing; 312: supplementary bearing;

313: valve seat; 3131: relief opening; 3132: mounting hole;

32: cylinder; 33: bent axle.

Embodiment

Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.

Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present utility model.Of the present utility model open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the utility model.In addition, the utility model can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the utility model provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.

Below with reference to Fig. 1-Fig. 3, the compressor 100 according to the utility model embodiment is described.Wherein, compressor 100 can be vertical compressor or horizontal compressor, is only described for vertical compressor for compressor 100 below, certainly, after the technological scheme of those skilled in the art below having read, be obviously appreciated that compressor 100 is the technological scheme of horizontal compressor.

As shown in Figure 1, according to the compressor 100 of the utility model embodiment, comprising: housing 1, motor 2 and compressing mechanism 3, motor 2 and compressing mechanism 3 are all located in housing 1, and wherein, motor 2 can be single-phase constant-seed motor.

Motor 2 comprises stator 22 and rotor 21.Particularly, motor 2 can be inner rotor type motor or external rotor electric machine, when motor 2 is inner rotor type motor, rotor 21 is located at the inner side (as shown in Figure 1) of stator 22 rotationally, when motor 2 is external rotor electric machine, rotor 21 is located at the outside (scheming not shown) of stator 22 rotationally.Only be described for inner rotor type motor for motor 2 below, certainly, after the technological scheme of those skilled in the art below having read, be obviously appreciated that motor 2 is the technological scheme of external rotor electric machine.

Compressing mechanism 3 comprises bent axle 33, cylinder assembly and two bearings 31 (i.e. main bearing 311 and supplementary bearing 312), main bearing 311 and supplementary bearing 312 are located at the axial two ends of cylinder assembly respectively, bent axle 33 one end is connected with rotor 21, the other end runs through cylinder assembly and two bearings 31.Such as in the example of fig. 1, main bearing 311 can be located at the top of cylinder assembly, supplementary bearing 312 can be located at the bottom of cylinder assembly, and upper end and the rotor 21 of bent axle 33 are fixedly linked, and the lower end of bent axle 33 runs through main bearing 311, cylinder assembly and supplementary bearing 312 in turn.

Cylinder assembly comprises cylinder 32, has compression chamber in cylinder 32.Particularly, when compressor 100 is single cylinder compressor (as shown in Figure 1), cylinder assembly only comprises a cylinder 32, now main bearing 311 and supplementary bearing 312 are located at the axial two ends of cylinder 32 respectively to limit compression chamber between cylinder 32, when compressor 100 is multicylinder compressor, cylinder assembly can comprise multiple cylinder 32, the spaced apart in the axial direction setting of multiple cylinder 32, and two often adjacent cylinders 32 are opened by baffle for separating, two cylinders 32 being now positioned at axial two ends limit compression chamber respectively by bearing 31 and dividing plate, remaining cylinders 32 all limits compression chamber by the dividing plate at its two ends.Only be described for single cylinder compressor for compressor 100 below, certainly, after the technological scheme of those skilled in the art below having read, be obviously appreciated that compressor 100 is the technological scheme of multicylinder compressor.

At least one in two bearings 31 has the valve seat 313 for installing exhaust valve plate (scheming not shown), that is, main bearing 311 can have the valve seat 313 for installing exhaust valve plate, supplementary bearing 312 also can have the valve seat 313 for installing exhaust valve plate, the valve seat 313 for installing exhaust valve plate can also be had on main bearing 311 and on supplementary bearing 312 simultaneously, when main bearing 311 having the valve seat 313 for installing exhaust valve plate, compression chamber is vented by main bearing 311, when supplementary bearing 312 having the valve seat 313 for installing exhaust valve plate, compression chamber is vented by supplementary bearing 312.Wherein, valve seat 313 individually can be processed with bearing 31, then is assembled together, and valve seat 313 can also be one-body molded with bearing 31.

Particularly, valve seat 313 can be formed as long-round-shape substantially, and the one end on the length direction of valve seat 313 is formed with the relief opening 3131 be communicated with compression chamber, relief opening 3131 runs through valve seat 313 to be communicated with the both sides of valve seat 313, the other end on the length direction of valve seat 313 is formed with the mounting hole 3132 for fixing exhaust valve plate, the shape of exhaust valve plate is similar to the shape of valve seat 313, and the size being dimensioned slightly smaller than valve seat 313 of exhaust valve plate, one end of exhaust valve plate is fixed on mounting hole 3132 place on valve seat 313, the other end of exhaust valve plate covers the side away from compression chamber at relief opening 3131 movably, like this, when the pressure of the gas pressure in compression chamber higher than exhaust valve plate opposite side, exhaust valve plate can be opened and discharge from relief opening 3131 by the gas in compression chamber.

The center of mounting hole 3132 and the angle β between the line of centres L1 of relief opening 3131 and secondary winding 221 central direction L2 meet: 0 °≤β≤45 °, such as, β can be 0 °, 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 ° or 45 ° etc., preferably, 0 °≤β≤30 °, further preferably, β=0 °, that is, the center of mounting hole 3132 is parallel with secondary winding 221 central direction L2 with the line of centres L1 of relief opening 3131, now, the rigidity of valve seat 313 best, be out of shape minimum.Here, be understandable that, the concept of " secondary winding 221 central direction L2 " is well known to those skilled in the art, and is only briefly described here.With reference to 1 and Fig. 3, stator 22 comprises stator iron core and staor winding, staor winding comprises the main winding of winding on stator iron core and secondary winding 221, on stator 22 two end faces axially, secondary winding 221 can be respectively a pair and be distributed in the two ends in stator 22 radial direction, and the respective center line connecting direction of every a pair secondary winding 221 in both ends of the surface is secondary winding 221 central direction L2.

Be understandable that, the moment that motor 2 starts, because the secondary winding of motor 2 first sets up magnetic field than main winding, this electromagnet pull only having in a flash secondary winding to produce, and the electromagnet pull that not main winding produces, thus cause rotor 21 by maximal unbalanced force, because the rigidity on valve seat 313 length direction (i.e. the center of mounting hole 3132 and the line of centres L1 direction of relief opening 3131) is the strongest, thus when the center of mounting hole 3132 of valve seat 313 and angle between the line of centres L1 of relief opening 3131 and secondary winding 221 central direction L2 more hour, valve seat 313 just can bear the maximal unbalanced force of rotor 21 with the direction that its rigidity is relatively strong, thus effectively reduce the distortion of valve seat 313, and then improve the reliability of compressor 100 and overall efficiency.

According to the compressor 100 of the utility model embodiment, effectively can improve the problem on deformation of valve seat 313, improve efficiency and the reliability of compressor 100.In addition, the assembling of compressor 100 is easy, applied widely, replicability is strong.

In an embodiment of the present utility model, each bearing 31 has respectively a valve seat 313, that is, main bearing 311 has a valve seat 313, supplementary bearing 312 also has a valve seat 313, now, the center of the mounting hole 3132 of the valve seat 313 on main bearing 311 and angle β 1 demand fulfillment between the line of centres L1 of relief opening 3131 and secondary winding 221 central direction L2: 0 °≤β 1≤45 °, the center of the mounting hole 3132 of the valve seat 313 on supplementary bearing 312 and the angle β 2 also demand fulfillment between the line of centres L1 of relief opening 3131 and secondary winding 221 central direction L2: 0 °≤β 2≤45 °.

Preferably, the center of the mounting hole 3132 of two valve seats 313 overlaps with the projection of line of centres L1 on reference level of relief opening 3131, that is, the center of the mounting hole 3132 of the valve seat 313 on main bearing 311 overlaps with the projection of line of centres L1 on reference level of relief opening 3131 with the center of the mounting hole 3132 of the valve seat 313 on supplementary bearing 312 with the line of centres L1 of relief opening 3131, now, the center of the mounting hole 3132 of the valve seat 313 on main bearing 311 is equal with the angle β 2 between the line of centres L1 of relief opening 3131 with secondary winding 221 central direction L2 with the center of the mounting hole 3132 of the valve seat 313 on supplementary bearing 312 with the angle β 1 between the line of centres L1 of relief opening 3131 with secondary winding 221 central direction L2, i.e. β 1=β 2.Thus, be more prone to assemble motor 2, the setting angle of adjustment motor 2, when the angle at the center of mounting hole 3132 and the center of relief opening 3131 of guaranteeing a secondary winding 221 central direction L2 and valve seat 313 meets the demands, the angle at the center of the mounting hole 3132 of secondary winding 221 central direction L2 and another valve seat 313 and the center of relief opening 3131 also meets the demands simultaneously, thus further increases reliability and the overall performance of compressor 100.Wherein, reference level is the plane perpendicular to bent axle 33 axis.

In description of the present utility model, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", " circumference " they be based on orientation shown in the drawings or position relationship; be only the utility model and simplified characterization for convenience of description; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.

In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection, can also be communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.

Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims (8)

1. a compressor, is characterized in that, comprising:

Motor, described motor comprises stators and rotators, and described stator comprises stator iron core and the secondary winding of winding on described stator iron core; With

Compressing mechanism, described compressing mechanism comprises bent axle, cylinder assembly and two bearings, described two bearings are located at the axial two ends of described cylinder assembly respectively, one end of described bent axle is connected with described rotor, the other end runs through described cylinder assembly and described two bearings, described cylinder assembly comprises cylinder, described cylinder has compression chamber, at least one in described two bearings is formed with the valve seat for installing exhaust valve plate, one end on the length direction of described valve seat is formed with the relief opening be communicated with described compression chamber, the other end on the length direction of described valve seat is formed with the mounting hole for fixing described exhaust valve plate, the center of described mounting hole and the angle β between the line of centres of described relief opening and described secondary winding central direction meet: 0 °≤β≤45 °.

2. compressor according to claim 1, is characterized in that, described β meets further: 0 °≤β≤30 °.

3. compressor according to claim 2, is characterized in that, described β meets further: β=0 °.

4. compressor according to claim 1, is characterized in that, described cylinder is multiple, is provided with dividing plate between two often adjacent described cylinders.

5. compressor according to claim 1, is characterized in that, each described bearing is formed with respectively a described valve seat.

6. compressor according to claim 5, is characterized in that, the center of the described mounting hole of two described valve seats overlaps with the projection of the line of centres on reference level of described relief opening, and wherein said reference level is the plane perpendicular to described crankshaft center line.

7. compressor according to claim 1, is characterized in that, described rotor is located in described stator rotationally.

8. the compressor according to any one of claim 1-7, is characterized in that, described motor is single-phase constant-seed motor.