CN206917853U - A kind of compressor - Google Patents

A kind of compressor Download PDF

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Publication number
CN206917853U
CN206917853U CN201720736688.9U CN201720736688U CN206917853U CN 206917853 U CN206917853 U CN 206917853U CN 201720736688 U CN201720736688 U CN 201720736688U CN 206917853 U CN206917853 U CN 206917853U
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CN
China
Prior art keywords
housing
groove
upper cylinder
cylinder cover
protuberance
Prior art date
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Active
Application number
CN201720736688.9U
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Chinese (zh)
Inventor
黄波
赵凤荣
刘轩彤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Highly Electrical Appliances Co Ltd
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Shanghai Highly Electrical Appliances Co Ltd
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Priority to CN201720736688.9U priority Critical patent/CN206917853U/en
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Abstract

The utility model provides a kind of compressor, and wherein compressor includes housing, and the inner surface of housing offers the groove of at least one inner periphery for surrounding the housing;Electric machine assembly;Compression assembly, it is placed in the inside of housing, compression assembly includes upper cylinder cover, cylinder and lower cylinder cap, cylinder is arranged between upper cylinder cover and lower cylinder cap, the outer surface of upper cylinder cover is provided with the protuberance of at least one excircle for surrounding the upper cylinder cover, and protuberance is corresponded and is embedded in corresponding groove with groove;And bent axle.The utility model provides a kind of technical scheme for strengthening upper cylinder cover and housing bonding strength, groove is opened up in enclosure interior, into the upper cylinder half box cover die of enclosure interior during casting molten metal, the protuberance coordinated with groove can be formed, physical connection is increased by the binding site of protuberance and groove between housing and upper cylinder cover, strengthens the intensity being connected;Avoid housing and upper cylinder cover stress and disconnect, increase product yield.

Description

A kind of compressor
Technical field
It the utility model is related to Compressor Technology field, more particularly to a kind of pressure for strengthening upper cylinder cover and housing bonding strength Contracting machine.
Background technology
As shown in figure 1, it is a kind of structural representation of the compressor of upper cylinder cover and housing integration in the prior art.It is described Compressor includes housing 101, electric machine assembly 102, bent axle 103 and compression assembly, wherein electric machine assembly 102, bent axle 103 and compression Component may be contained within inside the housing 101, and compression assembly includes upper cylinder cover 104, the and of cylinder 105 set gradually from top to bottom The revolving force of electric machine assembly 102 is transferred to the piston in cylinder 105 by lower cylinder cap 106, bent axle 103, performs compressed action.
Wherein, the integral structure of upper cylinder cover 104 and housing 101 of the prior art, it is double by housing and molten iron mostly The mode of metal hot melt is cast on together, i.e., first places the mould of upper cylinder cover in the housing, high temperature melting of then casting Molten iron, upper cylinder cover and housing are cast on together, then the product by completion of casting integrally cools down.The casting of this mode, two Contact area between kind material is small, and during High-temperature cooling, cast iron meeting contraction distortion, in upper cylinder cover 104 and housing 101 positions combined produce stomata or gap, and this is all very unfavorable for the intensity of casting connection.Therefore prior art is used In compressor structure, in casting cycle, easily there is the loosening of binding site between upper cylinder cover 104 and housing 101, Phenomena such as being come off during processing, it greatly affected production efficiency and product yield.
In addition, a kind of connected mode of upper cylinder cover and housing in the prior art also be present, the upper cylinder cover that will be molded is direct It is put into the substantially smooth housing of inwall, the outer wall of the upper cylinder cover after shaping is substantially smooth, only turnery processing Lines, then upper cylinder cover and housing are welded by solder joint.Such connected mode, on the one hand operate more complicated, the opposing party Face solder joint can not ensure the bonding strength of upper cylinder cover and housing in itself, upper cylinder cover and housing still may because by external force and that This departs from.
The above- mentioned information disclosed in the background section merely to promote understanding to the utility model background technology, Therefore it is possibly comprised in this country's letter that is unknown to those skilled in the art, not forming prior art Breath.
Utility model content
For the problems of the prior art, the purpose of this utility model is to provide a kind of compressor, by housing Portion opens up groove, the binding site increase physical connection between housing and upper cylinder cover, strengthens housing and upper cylinder cover is connected Intensity.
The utility model embodiment provides a kind of compressor, including:
Housing, the inner surface of the housing offer the groove of at least one inner periphery for surrounding the housing;
Electric machine assembly, it is placed in the inside of the housing;
Compression assembly, is placed in the inside of the housing, and the compression assembly includes upper cylinder cover, cylinder and lower cylinder cap, institute State cylinder to be arranged between the upper cylinder cover and the lower cylinder cap, the outer surface of the upper cylinder cover is provided with least one on this The protuberance of the excircle of cylinder cap, the protuberance is corresponding one by one with the groove and is embedded in corresponding groove;With And
Bent axle, it is connected between the electric machine assembly and the compression assembly, the bent axle is used for the electric machine assembly Revolving force be transferred to the piston of the cylinder interior.
Alternatively, the groove meets equation below:
0.5mm≤t<0.5T
Wherein, t is the depth value of the groove in the diametric(al) of the inner periphery of the housing, and T is the housing Total wall thickness.
Alternatively, the groove includes the multiple annular grooves for being opened in the inner surface of the housing, and the annular groove is along the shell The axial direction of body is arranged in order, and each annular groove is set parallel to each other.
Alternatively, the annular groove meets equation below:
1≤T1/T2<4
Wherein, T1 is the width value of the annular groove on the axial direction of the housing, and T2 is in the axial direction of the housing On direction, the distance values between two neighboring annular groove.
Alternatively, the groove includes the thread groove of an inner surface for being opened in the housing.
Alternatively, the thread groove meets equation below:
1≤D/L<4
L=M-D
Wherein, D is the width value of the thread groove on the axial direction of the housing, and M is the spiral shell of the thread groove Away from.
Alternatively, the upper cylinder cover is iron cylinder cap or aluminum alloy cylinder cover.
Compressor provided by the utility model has following advantages:
The utility model provides a kind of technical scheme for strengthening upper cylinder cover and housing bonding strength, by enclosure interior Groove is opened up, into the upper cylinder half box cover die of enclosure interior during casting molten metal, the protuberance coordinated with groove can be formed, passed through The binding site increase physical connection of protuberance and groove between housing and upper cylinder cover, is connected so as to strengthen housing with upper cylinder cover Fixed intensity;Avoid housing and upper cylinder cover stress and disconnect, improve production efficiency, increase product yield.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, other spies of the present utility model Sign, objects and advantages will become more apparent upon.
Fig. 1 is the sectional view of the compressor of an embodiment in the prior art;
Fig. 2 is the sectional view of the compressor of the embodiment of the utility model one;
Fig. 3 is the upper cylinder cover of compressor and the sectional view of housing engaging portion of the embodiment of the utility model one;
Fig. 4 is that the enclosure interior of the embodiment of the utility model one offers the structural representation of annular groove;
Fig. 5 is the scale diagrams of the enclosure interior annular groove of the embodiment of the utility model one;
Fig. 6 is that the enclosure interior of another embodiment of the utility model offers the structural representation of thread groove.
Reference:
Prior art:
101 housings
102 electric machine assemblies
103 bent axles
104 upper cylinder covers
105 cylinders
106 times cylinder caps
The utility model:
1 housing
11 thread grooves
12 annular grooves
2 electric machine assemblies
3 bent axles
4 upper cylinder covers
5 cylinders
6 times cylinder caps
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with a variety of shapes Formula is implemented, and is not understood as limited to embodiment set forth herein;On the contrary, these embodiments are provided so that this practicality is new The design of example embodiment fully and completely, and will be comprehensively communicated to those skilled in the art by type.It is identical in figure Reference represent same or similar structure, thus repetition thereof will be omitted.
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner In.In the following description, there is provided many details fully understand so as to provide to embodiment of the present utility model.So And one of ordinary skill in the art would recognize that, without one or more in specific detail, skill of the present utility model can also be put into practice Art scheme.
As shown in figures 2-3, the utility model embodiment provides a kind of compressor, and the compressor includes housing 1, motor Component 2, compression assembly and bent axle 3, the inner surface of the housing offer the groove of at least one inner periphery for surrounding the housing;Institute State the inside that electric machine assembly 2 is placed in the housing 1;The compression assembly is placed in the inside of the housing 1, the compression group Part includes upper cylinder cover 4, cylinder 5 and lower cylinder cap 6, and the cylinder 5 is arranged between the upper cylinder cover 4 and the lower cylinder cap 6, described The outer surface of upper cylinder cover 4 is provided with the protuberance of at least one excircle for surrounding the upper cylinder cover 4, the protuberance and the groove It is corresponding one by one and be embedded in corresponding groove;The bent axle 3 be connected to the electric machine assembly 2 and the compression assembly it Between, and the bent axle 3 is used to for the revolving force of the electric machine assembly 2 to be transferred to the piston inside the cylinder 5.
In the course of the work, after power supply is connected, rotor therein starts to revolve relative to the stator electric machine assembly 2 Turn, rotor banding dynamic crankshaft 3 rotates, the piston being transferred to revolving force by bent axle 3 in cylinder, piston of the piston in cylinder 5 Move within lumens, compressed gas.The gas for needing to compress enters the cylinder 5 from default air inlet, is compressed, then passed through Default exhaust outlet discharges the cylinder 5.
What is shown in Fig. 2 is only the compressor in a kind of specific embodiment, and in actual applications, compressor can also be it His structure and form, the position relationship between electric machine assembly 2, bent axle 3 and compression assembly are also not necessarily limited to example illustrated, belonged to Within the scope of protection of the utility model.
The utility model embodiment sets groove in the inside of housing 1, and upper cylinder cover 4 is formed with corresponding with groove prominent Portion, by the Qian He between groove and protuberance, increase the physical connection between upper cylinder cover 4 and housing 1, avoid the He of upper cylinder cover 4 Housing 1 is undesirably fallen off.Further, upper cylinder cover 4 and housing 1 are stably connected with, and also avoid whole compressor because upper cylinder half Lid 4 and housing 1 loosen and cause failure, ensure the normal operation of integrating compressor, and improve production yield, improve production Efficiency.
Still optionally further, the upper cylinder cover 4 is using the upper cylinder half box cover die being positioned over inside the housing 1 and cast molten Melt the metal formation of state.I.e. by the metal for molten condition of casting in upper cylinder half box cover die, when forming upper cylinder cover 4, melting The metal of state can be flowed into groove, also just form the protuberance of the outer surface of upper cylinder cover 4, so as to greatly improve the strong of casting connection Degree.
Further, since upper cylinder cover 4 is formed in the metal of the cast inside molten condition of housing 1, therefore the appearance of upper cylinder cover 4 Protuberance and the groove cooperation that face is formed are very close, are fully entrenched in corresponding groove, without fabrication error be present, And it is very close due to coordinating, it further enhancing both bonding strengths.
After the attachment structure of the embodiment, the outturn sample after casting is pressed using forcing press, intensity can surpass 90KN is crossed, even if lasting pressure causes the cast iron of center section to be broken, the part of casting does not still loosen.The utility model Structure also overcome the metal of casting and when housing uses different materials, two kinds of materials because shear strength is different and caused by melt The problem of connecing intensity difference and high-temperature oxydation.Even if the molten iron of casting has a certain degree of contraction in cooling procedure, housing 1 The intensity of axial direction can also meet to require.
The depth capacity of the groove will determine according to the gross thickness of housing 1, be typically chosen on the inwall of housing 1 and open up depth The groove for more than 0.5mm is spent, and the depth capacity 11 of groove will determine according to the gross thickness of housing 1, it is small in housing wall thickness On the basis of 6mm, half of the depth no more than the gross thickness of housing 1 of groove is opened up.The depth of groove refers to herein In the diametric(al) of the inner periphery of housing 1, the depth value of groove.The gross thickness of housing 1 refers to not opening up groove in housing 1 Part, along in the diametric(al) of the inner periphery of housing 1, the thickness value of housing 1.
As shown in figure 4, it is housing 1 in the embodiment of the utility model one and the structural representation at the cooperation of upper cylinder cover 4.Its In, the groove includes the multiple annular grooves 11 for being opened in the inner surface of the housing 1, axle of the annular groove 11 along the housing 1 It is arranged in order to direction, each annular groove 11 is set parallel to each other, and the spacing between the annular groove 11 is identical.I.e. each ring Groove 11 is uniformly distributed on the inner surface corresponding with upper cylinder cover 4 of housing 1.Formed after upper cylinder cover 4, the excircle of upper cylinder cover 4 It is evenly distributed with protuberance.Corresponding with the annular groove 11, the protuberance on the excircle of upper cylinder cover 4 is also set parallel to each other, And it is evenly distributed on the excircle of upper cylinder cover 4.
So that the material of housing 1 is 20# steel, cast inside part (upper cylinder cover 4) material is gray iron as an example.20# steel it is anti-shearing strong Degree is higher than gray iron, therefore the scheme more optimized is when opening up groove, the thickness ratio housing 1 of the molten metal (molten iron) of casting Part is thick.I.e. described annular groove 11 preferably further meets equation below:
1≤T1/T2<4
Wherein, T1 is the width value of the annular groove 11 on the axial direction of the housing 1, and T2 is in the housing 1 On axial direction, the distance values between two neighboring annular groove 11.
The material of housing 1 and cast inside part selection herein is only for example, in actual applications, housing 1 and cast inside Part can also select other materials.For example, upper cylinder cover 4 can be iron cast or aluminium alloy cast, iron material can be ash Mouth cast iron, spheroidal graphite cast-iron or rich chromium cast iron etc., aluminium alloy cast can be ZL101A aluminium alloys or ZL104 aluminium alloys etc..This The protection domain of utility model is not limited with enumerating herein, and in actual applications, housing 1 and cast inside part select other metals Material is possible, and can realize the purpose of enhancing housing 1 and the bonding strength of upper cylinder cover 4 of the present utility model.
As shown in figure 5, show the structural representation of the inner walls using annular groove.As described above, annular groove 11 meets such as Lower formula:
0.5mm≤t<0.5T
Wherein, t is the depth value of annular groove 11 in the diametric(al) of the inner periphery of the housing 1, and T is the housing 1 Total wall thickness.
In addition, as described above, in the wall thickness T of housing 1<On the basis of 6mm, the depth of groove is opened up no more than gross thickness Half.When the total wall thickness of housing 1 is more than or equal to 6mm, then the depth of groove can be suitably increased, it is strong not influence housing 1 itself Degree is limited.The depth span of annular groove 11 listed herewith is merely illustrative, in actual applications, can also be actual according to housing Intensity and the bonding strength demand adjustment depth of annular groove 11, are belonged within the scope of protection of the utility model, and are not limited.
The annular groove 11 is perfectly even distributed in the part that housing 1 is connected with upper cylinder cover 4, the quantity of specific annular groove 11, edge The width of the axial direction of housing 1, along the axial direction of housing 1 distance values can select and set as needed, in scheme What is shown is limited.
As shown in fig. 6, in another embodiment of the present utility model, the groove can also be opened in the shell including one The thread groove 12 of the inner surface of body 1.Corresponding, the outer surface of upper cylinder cover 4 is also formed with the protuberance of a shape of threads, with spiral shell Groove 12 is engaged, increases the contact area of the outer surface of upper cylinder cover 4 and the inner surface of housing 1.
As described above, it is preferred to when opening up groove, the part of the thickness ratio housing of cast is thick.I.e. described thread groove 12 is excellent Be full sufficient equation below:
1≤D/L<4
L=M-D
Wherein, D is the width value of the thread groove on the axial direction of the housing, and M is the spiral shell of the thread groove Away from i.e. L is equal to (pitch-thread groove width).Herein, pitch refers to that adjacent two tooth corresponds to point-to-point transmission on middle line on screw thread Axial distance.
Thread groove 12 is preferably completely distributed in the inner surface of housing 1 and 4 corresponding position of upper cylinder cover.It can increase most possibly The physical contact area of big upper cylinder cover 4 and housing 1, by the occlusion between screw thread and protuberance, strengthens upper cylinder cover 4 and housing 1 Between bonding strength.
Similarly, as described above, the depth of thread groove 12 preferably meets equation below:
0.5mm≤t2<0.5T
Wherein, t2 is that the depth value of thread groove 12, T is the housing in the diametric(al) of the inner periphery of the housing 1 1 total wall thickness.
Two kinds of preferred embodiments of the utility model are illustrate only in Fig. 4 and Fig. 6, you can with the inwall of housing 1 Open up annular groove 11 or thread groove 12.But in actual applications, other kinds of groove can also be selected, for example, it is corrugated recessed Groove or the spaced groove of inner periphery along housing etc., are belonged within the scope of protection of the utility model.In addition, annular groove 11 it can also be provided that uneven distribution, i.e., each annular groove 11 can also not parallel setting mutually, between each annular groove 11 Spacing can also be different, and width value of each annular groove along the axial direction of housing 1 can also be different;Thread groove 12 can also be only The part that housing 1 contacts surface with upper cylinder cover 4 is distributed in, without all covering contact surface, is belonged to of the present utility model Within protection domain, the purpose of utility model of enhancing upper cylinder cover and housing bonding strength of the present utility model can solve the problem that.
Compressor provided by the utility model has following advantages:
The utility model provides a kind of technical scheme for strengthening upper cylinder cover and housing bonding strength, by enclosure interior Groove is opened up, into the upper cylinder half box cover die of enclosure interior during casting molten metal, the protuberance coordinated with groove can be formed, passed through The binding site increase physical connection of protuberance and groove between housing and upper cylinder cover, is connected so as to strengthen housing with upper cylinder cover Fixed intensity;Avoid housing and upper cylinder cover stress and disconnect, improve production efficiency, increase product yield.
Above content is to combine specific preferred embodiment further detailed description of the utility model, it is impossible to Assert that specific implementation of the present utility model is confined to these explanations.For the ordinary skill of the utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should all be regarded To belong to the scope of protection of the utility model.

Claims (7)

  1. A kind of 1. compressor, it is characterised in that including:
    Housing, the inner surface of the housing offer the groove of at least one inner periphery for surrounding the housing;
    Electric machine assembly, it is placed in the inside of the housing;
    Compression assembly, is placed in the inside of the housing, and the compression assembly includes upper cylinder cover, cylinder and lower cylinder cap, the gas Cylinder is arranged between the upper cylinder cover and the lower cylinder cap, and the outer surface of the upper cylinder cover is provided with least one around the upper cylinder cover Excircle protuberance, the protuberance is corresponding one by one with the groove and is embedded in corresponding groove;And
    Bent axle, it is connected between the electric machine assembly and the compression assembly, the bent axle is used for the rotation of the electric machine assembly Turn the piston that power is transferred to the cylinder interior.
  2. 2. compressor according to claim 1, it is characterised in that the groove meets equation below:
    0.5mm≤t<0.5T
    Wherein, t is the depth value of the groove in the diametric(al) of the inner periphery of the housing, and T is the general wall of the housing It is thick.
  3. 3. compressor according to claim 1, it is characterised in that the groove includes the inner surface for being opened in the housing Multiple annular grooves, axial direction of the annular groove along the housing be arranged in order, and each annular groove is set parallel to each other.
  4. 4. compressor according to claim 3, it is characterised in that the annular groove meets equation below:
    1≤T1/T2<4
    Wherein, T1 is the width value of the annular groove on the axial direction of the housing, and T2 is the axial direction in the housing On, the distance values between two neighboring annular groove.
  5. 5. compressor according to claim 1, it is characterised in that the groove includes an interior table for being opened in the housing The thread groove in face.
  6. 6. compressor according to claim 5, it is characterised in that the thread groove meets equation below:
    1≤D/L<4
    L=M-D
    Wherein, D is the width value of the thread groove on the axial direction of the housing, and M is the pitch of the thread groove.
  7. 7. compressor according to claim 1, it is characterised in that the upper cylinder cover is iron cylinder cap or aluminum alloy cylinder cover.
CN201720736688.9U 2017-06-23 2017-06-23 A kind of compressor Active CN206917853U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720736688.9U CN206917853U (en) 2017-06-23 2017-06-23 A kind of compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720736688.9U CN206917853U (en) 2017-06-23 2017-06-23 A kind of compressor

Publications (1)

Publication Number Publication Date
CN206917853U true CN206917853U (en) 2018-01-23

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ID=61321415

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720736688.9U Active CN206917853U (en) 2017-06-23 2017-06-23 A kind of compressor

Country Status (1)

Country Link
CN (1) CN206917853U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113969A (en) * 2017-06-23 2019-01-01 上海海立电器有限公司 A kind of upper cylinder half cover manufacturing method of compressor and compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109113969A (en) * 2017-06-23 2019-01-01 上海海立电器有限公司 A kind of upper cylinder half cover manufacturing method of compressor and compressor

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