CN206611253U - Rotor assembly and motor and compressor with it - Google Patents

Abstract

The utility model discloses a kind of rotor assembly and motor and compressor with it, rotor assembly includes：Rotor body；Balance weight, balance weight is located at axial one end of the close compressor pump of rotor body, in rotor body radially, and at least a portion of the lateral surface of the rotation axis of the dorsad rotor body of balance weight protrudes from the outer peripheral face of rotor body.The rigidity of compressor pump can be lifted according to rotor assembly of the present utility model, it is ensured that the reliability and efficiency of compressor.

Description

Rotor assembly and motor and compressor with it

Technical field

The utility model is related to Compressor Technology field, more particularly, to a kind of rotor assembly and with the rotor set The motor of part and the compressor with the motor.

Background technology

Balance weight is to influence one of key factor of vibration, noise and windage of compressor, in order to reduce windage, is reduced flat The disturbance of weighing apparatus block employs the smooth surface blending design of each plane to reduce the balance weight in windage, correlation technique.But, it is Ensure that vibration does not deteriorate, this balance weight, which is employed, to be increased the height of balance weight to ensure the quality of balance weight, to realize used The balance of property power and moment of inertia.Rotor part can be caused away from the pump housing by increasing due to balance weight, so that the pump housing is rigidly disliked Change.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model is carried Go out a kind of rotor assembly, the rotor assembly can lift the rigidity of compressor pump.

The invention also provides a kind of motor with above-mentioned rotor assembly.

The invention also provides a kind of compressor with above-mentioned motor.

According to the rotor assembly of the utility model first aspect, including：Rotor body；Balance weight, the balance weight is located at Axial one end of the close compressor pump of the rotor body, in the rotor body radially, the back of the body of the balance weight The outer peripheral face of the rotor body is protruded at least a portion of the lateral surface of the rotation axis of the rotor body.

The rigidity of compressor pump can be lifted according to rotor assembly of the present utility model, it is ensured that the reliability of compressor and Efficiency.

In addition, can also have technical characteristic additional as follows according to rotor assembly of the present utility model：

According to some embodiments of the present utility model, the rotation axis of the lateral surface of the balance weight and the rotor body Maximum radial distance L meet：L1 ＜ L ＜ L2, wherein, L1 rotates the radial direction of axis for the outer peripheral face of the rotor body Distance, the maximum radial distance of the coil and the rotation axis of the rotor body of motors of the L2 where rotor assembly.

Alternatively, in the axial direction of the rotor body, the balance weight has the inner face towards the rotor body The dorsad outer face of the rotor body and the lateral circle surface between the inner face and outer face, the lateral circle surface shape As it is streamlined and with the inner face and the outer face rounding off.

In some embodiments of the present utility model, in the circumference of the rotor body, the two ends of the balance weight that This is close to extension.

Further, the balance weight is formed as opening towards the C-shaped of the rotation axis of the rotor body.

Alternatively, the medial surface of the rotation axis of the neighbouring rotor body of the balance weight and the rotor body Angle theta between radial section is met：0 degree of ＜ θ≤90 degree °.

Further, the medial surface of the balance weight includes the first face and the second face, and first face is substantially along institute The axially extending of rotor body is stated, second face is connected with one end of the remote rotor body in first face, described Second rotation axis away from the rotor body and the direction extension to the remote rotor body.

Alternatively, the lateral surface of the rotation axis of the dorsad described rotor body of the balance weight is relative to the rotor sheet The angle of inclination beta of the radial section of body is met：90 degree≤β ＜ 180 degrees.

Further, the lateral surface of the balance weight includes the 3rd face and fourth face, and the 3rd face is substantially along institute The axially extending of rotor body is stated, the fourth face is connected with one end of the remote rotor body in the 3rd face, described Fourth face extends to the rotation axis away from the rotor body and to the direction away from the rotor body.

Specifically, in the axial direction of the rotor body, the two ends end face of the balance weight is respectively formed as plane.

In a specific embodiment of the present utility model, the rotor body vertically extends, the balance weight For the lower balance weight for the lower surface for being located at the rotor body, the upper surface of the rotor body is provided with upper balance weight, described The non-bulging outer peripheral face in the rotor body of outer peripheral face of upper balance weight.

According to the motor of the utility model second aspect, including according to rotor assembly of the present utility model.

According to the compressor of the utility model third aspect, including according to motor of the present utility model.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined Become substantially and be readily appreciated that, wherein：

Fig. 1 is the structural representation of the rotor assembly according to the utility model embodiment；

Fig. 2 is the side view of the rotor assembly according to the utility model embodiment；

Fig. 3 is the structural representation of the balance weight of the rotor assembly according to the utility model embodiment；

Fig. 4 is the structural representation of another angle of the balance weight of the rotor assembly according to the utility model embodiment；

Fig. 5 be in Fig. 4 along A-A directions sectional view.

Reference：

Rotor assembly 100；

Rotor body 10；

Balance weight 20；Upper balance weight 20a；Lower balance weight 20b；

Inner face 21；Outer face 22；Lateral circle surface 23；Fixing hole 201；

Medial surface 231；Lateral surface 232；First face 2311；Second face 2312；3rd face 2321；Fourth face 2322；

Portion 210 windward；Leeward portion 220；Interlude 230；

Rotation axis I.

Embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality The limitation of type, one of ordinary skill in the art can be to these in the case where not departing from principle of the present utility model and objective Embodiment carries out a variety of change, modification, replacement and modification, and scope of the present utility model is limited by claim and its equivalent.

In description of the present utility model, it is to be understood that term " on ", " under ", " vertical ", " interior ", " outer ", " axle To ", " radial direction ", the orientation of the instruction such as " circumference " or position relationship be based on orientation shown in the drawings or position relationship, be only for It is easy to description the utility model and simplifies describe, rather than to indicate or imply that signified device or element must have specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Below with reference to the accompanying drawings the rotor assembly 100 according to the utility model embodiment is described in detail.

Referring to figs. 1 to shown in Fig. 5, rotor body may include according to the rotor assembly 100 of the utility model one embodiment 10 and balance weight 20.Balance weight 20 is located at axial one end of the close compressor pump of rotor body 10, for example, such as Fig. 1 and figure Shown in 2, the axial direction of rotor body 10 is vertical direction (above-below direction i.e. shown in Fig. 2) and compressor pump (does not show in figure Go out) be located at rotor assembly 100 lower section when, balance weight 20 can be arranged on the lower surface of rotor body 10.

The one side of the rotation axis I of the dorsad rotor body 10 of balance weight 20 is lateral surface 232, alternatively, in rotor sheet Radially, at least a portion of the lateral surface 232 of balance weight 20 can protrude from the outer peripheral face of rotor body 10 to body 10.Also To say, the part of the lateral surface 232 of balance weight 20 can protrude from the outer peripheral face of rotor body 10, or balance weight 20 outside Face 232 all protrudes from the outer peripheral face of rotor body 10.

Thus, it is possible to increase the distance of the barycenter of balance weight 20 in radial directions with the rotation axis I of rotor body 10, , can be by reducing the axial height of balance weight 20 (i.e. along rotor to keep balance so as to increase the inertia force of balance weight 20 The axially extending size of body 10) reduce the quality of balance weight 20.The axial height reduction of balance weight 20, which can be realized, to be turned The distance of son and compressor pump reduces, and improves the rigidity of compressor pump, finally ensure that the reliability and effect of compressor Rate.

According to the rotor assembly 100 of the utility model embodiment, by by least one of the lateral surface 232 of balance weight 20 Point protrude from the outer peripheral face of rotor body 10 so that the barycenter of balance weight 20 can along rotor body 10 radially outward skew, The inertia force of balance weight 20 is increased, can reduce the height of balance weight 20 in the case where keeping balance, realize rotor body 10 reduce with the distance of compressor pump, lift the rigidity of compressor pump, the final reliability and efficiency for ensureing compressor.This Outside, the rotor assembly 100 also have it is simple in construction, easy to assembly, can reduce that manufacturing cost, manufacturing process are simple and performance is high The advantages of.

In the utility model, rotor assembly 100 can be using known structure or the improved structure of known structure, and this is right It is appreciated that and easily realizes for those skilled in the art, be not described in detail herein, balance weight 20 is entered below Row is described in detail.

Referring to figs. 1 to shown in Fig. 5, according to some embodiments of the present utility model, the lateral surface 232 and rotor of balance weight 20 The maximum radial distance L of the rotation axis I of body 10 is met：L1 ＜ L ＜ L2, wherein, L1 for rotor body 10 outer peripheral face with The radial distance of the rotation axis I of rotor body 10, L2 be the motor where rotor assembly 100 coil (not shown) with The maximum radial distance of the rotation axis I of rotor body 10.Here, radial distance is turning at the center by rotor body 10 The distance radially of sub- body 10, the L and L1 are shown in fig. 2.Thus, the barycenter of balance weight 20 will not too to Outer skew, deviation post is moderate, and balance is good and electromagnetic performance is good, and the reliability and efficiency of compressor are further improved.

In the axial direction of rotor body 10, balance weight 20 has inner face 21, outer face 22 and lateral circle surface 23, with continued reference to Shown in Fig. 1 to Fig. 5, inner face 21 is towards rotor body 10 and can be connected with rotor body 10, the dorsad rotor of outer face 22 Body 10 and it is disposed opposite to each other with inner face 21, lateral circle surface 23 is located between outer face 22 and inner face 21.

Wherein, lateral circle surface 23 is formed as streamlined, and lateral circle surface 23 and inner face 21 and the rounding off of outer face 22. That is, the round and smooth lateral circle surface 23 being connected between inner face 21 and outer face 22 can be formed as streamlined structure.Thus, may be used To avoid lateral circle surface 23, lateral circle surface 23 from being formed greatly with the junction of inner face 21 and lateral circle surface 23 and the junction of outer face 22 Fluctuating and sharp corner angle, the outer surface of rotor body 10 is more smooth, it is possible to reduce windage, reduces flow perturbation, it is to avoid Vortex and turbulent flow, improve motor efficiency, reduce noise.

Alternatively, in some embodiments of the present utility model, in the circumference of rotor body 10, the two ends of balance weight 20 Close to each other it can extend.Specifically, referring to figs. 1 to shown in Fig. 4, along the circumference of balance weight 20, balance weight 20 may include to meet Wind portion 210, leeward portion 220 and interlude 230 windward between portion 210 and leeward portion 220 is connected to, portion 210 is located at windward The front side of the direction of rotation (direction of rotation is as shown in arrow R in Fig. 4) of the rotor body 10 of interlude 230, leeward portion 220 is located at The rear side of the direction of rotation of the rotor body 10 of interlude 230, windward the rear end of the front end in portion 210 and leeward portion 220 lean on each other Nearly extension.

That is, portion 210 can be tilted to interlude 230 windward, leeward portion 220 can also be tilted to interlude 230, turned On the direction of rotation R of sub- body 10, the distance between the rear end in the front end in portion 210 and leeward portion 220 is less than portion 210 windward windward The distance between the front end in rear end and leeward portion 220.Thus, the balance of balance weight 20 preferably, can further improve pressure The reliability and efficiency of contracting machine.

In this kind of embodiment, the lateral surface 232 of interlude 230 can be only set to protrude from the outer peripheral face of rotor body 10, It is of course also possible to make interlude 230, windward the lateral surface 232 in portion 210 and leeward portion 220 have and protrude from rotor body 10 The part of outer peripheral face, flexible design can be carried out as the case may be.

Further, as shown in Figures 1 to 4, balance weight 20 is formed as rotation axis I of the opening towards rotor body 10 C-shaped.Thus, interlude 230 can extend into shaped form structure and with portion 210 windward and the rounding off of leeward portion 220, can Further to reduce windage, flow perturbation is reduced, motor efficiency and reliability is further improved.

In some embodiments of the present utility model, balance weight 20 is integrated part, that is to say, that windward portion 210, Leeward portion 220 and interlude 230 are integrally formed.Thus, manufacture is not only facilitated, and bulk strength is higher, and surface is smoother, enters One step improves motor efficiency and reliability.

According to some embodiments of the present utility model, the inner side of the rotation axis I of the adjacent rotor body 10 of balance weight 20 Angle theta between the radial section of face 231 and rotor body 10 is met：0 degree of ＜ θ≤90 degree, the θ can refer to Fig. 2 and Fig. 3 It is shown.Thus, the barycenter of balance weight 20 is conducive to outwards to offset.Alternatively, according to some specific examples of the present utility model, θ It can be 15 degree, 30 degree, 45 degree, 60 degree, 75 degree or 90 degree etc..

In the embodiment shown in Fig. 1 to Fig. 5, the medial surface 231 of balance weight 20 may include the first face 2311 and the second face 2312, the first face 2311 is substantially along the axially extending of rotor body 10, the remote rotor sheet in the second face 2312 and the first face 2311 One end of body 10 is connected, that is to say, that the adjacent rotor body 10 of the first face 2311, the second face 2312 is away from rotor body 10.The Two faces 2312 extend to the rotation axis I away from rotor body 10 and to the direction away from rotor body 10.In other words, the second face 2312 are formed as the extension of inclination axially outward relative to rotor body 10.Thus, not only assembling effect is good but also balance is good.

It should be noted that the structure that Fig. 1 is shown into Fig. 5 is only described as example, in the utility model, put down The medial surface 231 of weighing apparatus block 20 can also be other structures, for example, medial surface 231 can be integrally outward-dipping, or be divided into multistage Outward-dipping and every section of outward-dipping angle is not equal, these are to be appreciated that and hold to those skilled in the art Easily realize, be not described in detail herein.

In embodiment of the present utility model, not only the medial surface 231 of balance weight 20 can with outward-dipping, balance weight 20 Dorsad the lateral surface 232 of the rotation axis I of rotor body 10 can also be outward-dipping.Specifically, the lateral surface 232 of balance weight 20 Angle of inclination beta relative to the radial section of rotor body 10 is met：180 ° of 90 °≤β ＜, the β can refer to shown in Fig. 2 and Fig. 3. Thus, the barycenter of balance weight 20 is conducive to outwards to offset.Alternatively, according to some specific examples of the present utility model, β can be 90 degree, 120 degree, 135 degree, 150 degree or 165 degree etc..

By taking the specific embodiment shown in Fig. 1 to Fig. 5 as an example, the lateral surface 232 of balance weight 20 may include the He of the 3rd face 2321 Fourth face 2322, the 3rd face 2321 is substantially along the axially extending of rotor body 10, and fourth face 2322 is remote with the 3rd face 2321 One end of rotor body 10 is connected, and fourth face 2322 is to the rotation axis I away from rotor body 10 and to away from rotor sheet The direction extension of body 10.That is, the 3rd face 2321 can be formed as the axially extending plane along rotor body 10, the 4th Face 2322 can be formed as the inclined plane inclined axially outward relative to rotor body 10, the rotor assembly 100 of this kind of structure Not only assembling effect is good but also balance is good.

Alternatively, as shown in Fig. 2 in the specific example, the 3rd face 2321 can be made non-bulging in rotor body 10 Outer peripheral face, and fourth face 2322 is protruded from the outer peripheral face of rotor body 10, assembling and balance are good.

Further to reduce windage, alternatively, as shown in Figures 2 to 5, the first face 2311 can be with round and smooth with the second face 2312 Transition, the 3rd face 2321 and fourth face 2322 can also rounding off so that the surface of balance weight 20 when being formed as cascaded surface still Smoother effect can be kept, sharp corner angle can be avoided, is flowed a gas over more smooth.

Alternatively, such as Fig. 1 and to shown in Fig. 5, in the axial direction of rotor body 10, the two ends end face difference shape of balance weight 20 As plane.Thus, the profile of balance weight 20 is more regular, not only facilitates manufacture, and balance weight 20 and rotor body 10 Contact area is bigger, assembles more firm.In addition, when the two ends end face of balance weight 20 is parallel with the radial section of rotor body 10 When, between the medial surface 231 of the rotation axis I of the adjacent rotor body 10 of balance weight 20 and the radial section of rotor body 10 Angle theta it can be appreciated that angle between the medial surface 231 of balance weight 20 and the inner face 21 of balance weight 20, balance weight 20 Lateral surface 232 can be understood as the lateral surface 232 of balance weight 20 relative to the angle of inclination beta between the radial section of rotor body 10 The angle formed between the inner face 21 of balance weight 20, for example, as shown in Figure 2 and Figure 5.

As depicted in figs. 1 and 2, according to the rotor assembly 100 of the utility model embodiment can include upper balance weight 20a and Lower balance weight 20b, rotor body 10 can form the column vertically extended, and upper balance weight 20a is located at rotor body 10 On upper surface, lower balance weight 20b is located on the lower surface of rotor body 10, and above-mentioned balance weight 20 can be used as lower balance weight 20b Use.During compressor operation, upper balance weight 20a, lower balance weight 20b have balanced action, can for eliminate due to Caused by total quality imbalance including bent axle (not shown), rotary-piston (not shown), rotor assembly 100 The vibration of compressor housing, so as to ensure the reliability and efficiency of compressor operation.

Alternatively, upper balance weight 20a outer peripheral face can be with the non-bulging outer peripheral face in rotor body 10.Specifically, it is upper flat Weighing apparatus block 20a outer peripheral face can be concordant with the outer peripheral face of rotor body 10, or upper balance weight 20a outer peripheral face can concave In the outer peripheral face of rotor body 10.Thus, under upper balance weight 20a and lower balance weight 20b collective effect, rotor set can be made Part 100 has excellent balance.

In the utility model, the connected mode for balance weight 20 and rotor body 10 does not do specifically limited, alternatively, According to some embodiments of the present utility model, balance weight 20 can be fixed on rotor body by connectors such as rivet or screws On 10.For example, as shown in Figures 1 to 4, fixing hole 201 can be set on balance weight 20, for wearing connector, it is convenient with The fixation of rotor body 10.

Included according to the motor of the utility model embodiment according to the utility model embodiment rotor assembly 100.Due to root There is above-mentioned technique effect according to the rotor assembly 100 of the utility model embodiment, therefore according to the utility model embodiment Motor also there is corresponding technique effect, i.e. motor can lift the rigidity of compressor pump, final to ensure the reliable of compressor Property and efficiency.

Motor according to above-described embodiment is included according to the compressor of the utility model embodiment.Due to new according to this practicality The motor of type above-described embodiment has above-mentioned technique effect, therefore, is had according to the compressor of the utility model embodiment higher Reliability and efficiency.

According to the compressor of the utility model embodiment other constitute and operate for this area ordinary skill people It is knowable for member, is not described in detail herein.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art The schematic representation of language is not necessarily referring to identical embodiment or example.Moreover, description specific features, structure, material or Person's feature can in an appropriate manner be combined in any one or more embodiments or example.

Claims (13)

1. a kind of rotor assembly, it is characterised in that including：

Rotor body；

Balance weight, the balance weight is located at axial one end of the close compressor pump of the rotor body, in the rotor sheet Radially, at least a portion of the lateral surface of the rotation axis of the dorsad described rotor body of the balance weight protrudes from institute to body State the outer peripheral face of rotor body.

2. rotor assembly according to claim 1, it is characterised in that the lateral surface of the balance weight and the rotor body Rotation axis maximum radial distance L meet：L1 ＜ L ＜ L2, wherein, L1 rotates for the outer peripheral face of the rotor body The radial distance of axis, the maximum radial of the coil and the rotation axis of the rotor body of motors of the L2 where rotor assembly Distance.

3. rotor assembly according to claim 1, it is characterised in that in the axial direction of the rotor body, the balance Block have towards the rotor body inner face and dorsad the outer face of the rotor body and positioned at the inner face with Lateral circle surface between outer face, the lateral circle surface be formed as it is streamlined and with the inner face and the outer face rounding off.

4. rotor assembly according to claim 1, it is characterised in that in the circumference of the rotor body, the balance The extension close to each other of the two ends of block.

5. the rotor assembly according to claim 4, it is characterised in that the balance weight is formed as opening and turned towards described The C-shaped of the rotation axis of sub- body.

6. the rotor assembly according to claim 1, it is characterised in that the neighbouring rotor body of the balance weight Angle theta between the radial section of the medial surface of rotation axis and the rotor body is met：0 degree of ＜ θ≤90 degree.

7. the rotor assembly according to claim 6, it is characterised in that the medial surface of the balance weight include the first face and Second face, first face is substantially along the axially extending of the rotor body, the remote institute in second face and first face The one end for stating rotor body is connected, described second away from the rotor body rotation axis and to away from the rotor sheet The direction extension of body.

8. the rotor assembly according to claim 1, it is characterised in that the dorsad described rotor body of the balance weight The lateral surface of rotation axis is met relative to the angle of inclination beta of the radial section of the rotor body：90 degree≤β ＜ 180 degrees.

9. the rotor assembly according to claim 8, it is characterised in that the lateral surface of the balance weight include the 3rd face and Fourth face, the 3rd face is substantially along the axially extending of the rotor body, the fourth face and the remote institute in the 3rd face The one end for stating rotor body is connected, and the fourth face is to the rotation axis away from the rotor body and to away from the rotor sheet The direction extension of body.

10. the rotor assembly according to any one of claim 1-9, it is characterised in that in the axial direction of the rotor body On, the two ends end face of the balance weight is respectively formed as plane.

11. rotor assembly according to claim 1, it is characterised in that the rotor body vertically extends, described Balance weight is the lower balance weight for the lower surface for being located at the rotor body, and the upper surface of the rotor body is provided with upper balance Block, the non-bulging outer peripheral face in the rotor body of outer peripheral face of the upper balance weight.

12. a kind of motor, it is characterised in that including the rotor assembly according to any one of claim 1-11.

13. a kind of compressor, it is characterised in that including motor according to claim 12.