CN103857911A

CN103857911A - Compressor block

Info

Publication number: CN103857911A
Application number: CN201280050765.5A
Authority: CN
Inventors: R·B·尤尼奥尔; E·莫雷拉
Original assignee: Whirlpool SA
Current assignee: Whirlpool SA
Priority date: 2011-08-30
Filing date: 2012-06-21
Publication date: 2014-06-11
Anticipated expiration: 2032-06-21
Also published as: WO2013029132A1; EP2751426A1; KR20140058633A; JP2014533333A; US20140298985A1; SG11201400314QA; EP2751426B1; BRPI1103746A2; CN103857911B; CN102966517A

Abstract

The present invention refers to a compressor block (21), which has at least one passage opening of driving member (22), at least one frontal of support (24a) and at least one portion (26), so that at least one first and one second means of structural connection between the portion (26) and the frontal extensions of support (24a) are defined by at least one structural wall (28a) and at least one wall structure (28b). The structural walls (28a, 28b) define the main perimeter of the compressor block (21) and are provided with at least one section of physical association between each other.

Description

Compressor block

Technical field

The present invention relates to a kind of compressor block, be specifically related to reciprocating compressor body (being preferably used for cooling system).

The object that the compressor block of discussing is developed is that employing provides rigidity and durable structure for the raw material of the small amount of its manufacture.

Background technique

Reciprocating compressor, in particular for those reciprocating compressors of cooling system substantially by electric notor and by being used for the installation composition of compression of promoting working processes fluid (coolant fluid).Conventionally, be used for the device of compression of promoting working processes fluid and comprise at least one piston-cylinder assembly, wherein piston can to-and-fro motion in cylinder (in this cylinder can compression working fluid).

In this sense, the motion of piston conventionally provides to electric notor motion (directly or indirectly) is relevant.Typically, the connection between these elements is performed by connecting rod, and this connecting rod can transmit and/or change the piston that moves to of motor (motor rotor).

The layout of the parts of reciprocating compressor is typically by they are associated with in single body and are provided as described above, and this single body is associated with compressor case.

The example of the compressor block that prior art comprises is illustrated in Fig. 1.In this drawing, notice, described compressor block 11 comprises: plate 16, this plate is used for not shown with piston guide 13() associated valve assembly (not shown) is installed to the shell 12 for the rotor (not shown) of motor; With extension part 14, this extension part is used for body 11 to be supported in compressor case (not shown).Although these elements are enumerated by Modularly, also should illustrate, compressor block 11 is overall bodies of single-piece, and these elements are interconnected by plate 17, a large amount of raw material of need of production of this plate (although comprising some points 15 that material reduces).

Also observe, prior art comprises the module of the compressor block that is designed to the Raw Material Demand that reduces its production.

The first example of such structure is at US4, is described in 115,035, wherein can note a kind of body of the reciprocating compressor for refrigerator, and the target of this body is the amount that minimizes it and manufacture required material.This body comprises by connecting the operating area of body and (is used for installing the opening of motor drive shaft; Skirt section sheath and two pressure damping chambers) the geometrical shape that forms of triangular shaped plate substantially.Although this scheme is used the material of relatively small amount, the shortcoming having to be in it is manufactured, make all concentration of tension forces that the operation element of compressor causes in the single region of body: triangular shaped plate substantially.In addition, it causes excessive transfer voice rate, because it is dull and stereotyped.

At document US3, can see the second example in 666,380, the document discloses a kind of body of the reciprocating compressor for refrigerator, adopts the embodiment who greatly simplifies, and this body significantly reduces the amount of material, there is the US4 of being similar to, the geometrical shape of the object of describing in 115,035.But, in the embodiment who more simplifies, not comprising pressure damping chamber and comprise the extension part that the opening from being used for installing live axle extends, this extension part extends to compressor case, and there, it is associated with vibration damping element.Although the less material of compressor block significant need obtaining from this embodiment is manufactured, and need to ensure its rigidity with reinforcing part.This reinforcing part tends to increase the weight of body, and therefore increases the amount of the material of manufacturing this body use.

Therefore, notice, prior art lacks a kind of reciprocating compressor body, and this reciprocating compressor body uses a small amount of material in it is manufactured, the high mechanical resistance of the power that operation is caused is provided, and the hot good capacity that also provides the operation of dissipation compressor to cause.

Summary of the invention

Therefore, a target of the present invention is to provide a kind of reciprocating compressor body, and this reciprocating compressor body uses a small amount of raw material in it is manufactured.

Another target of the present invention is open a kind of reciprocating compressor body, and this reciprocating compressor body has low weight and high mechanical strength.

And another target of the present invention is open a kind of reciprocating compressor body, this reciprocating compressor body is by eliminating the conventional dull and stereotyped low transfer voice that has.

Another target of the present invention is to provide a kind of reciprocating compressor body, and this reciprocating compressor body can provide the good dissipation in absorbed heat of the operation period of compressor.

Target of the present invention is realized by the compressor block disclosing now, and this compressor block comprises at least one opening, at least one front support extension part and at least one part (being used for installing the plate of valve) of driving component.Compressor block disclosed herein provides: at least one first member that structure between this part (being used for installing the plate of valve) and front support extension part, that limited by least one structural walls connects; And at least one second component of structure connection between this part (being used for installing the plate of valve) and front support extension part, that limited by least one structural walls.

According to the present invention, this wall comprises at least one section of physical interconnection each other and limits at least in part the main periphery of compressor block.Preferably, this wall is symmetrical substantially.

More preferably, this wall is made up of the part of curve substantially.

Preferably, compressor block disclosed herein comprises at least one reinforcing part being arranged between front support extension part.

Alternatively, this structural walls can limit the operating area of connecting rod.

Brief description of the drawings

Describe the accompanying drawing based on listing in detail the present invention below, comprising:

Fig. 1 is illustrated in the compressor block that belongs to prior art of seeing in isometric transparent view;

Fig. 2 illustrates present disclosed compressor block with isometric transparent view;

Fig. 3 is illustrated in the present disclosed compressor block of observing in plan view; And

The preferred assembly of the schematically illustrated present disclosed compressor block of Fig. 4.

Embodiment

According to main design of the present invention, a kind of compressor block is shown, this compressor block not usage level plate connects the funtion part (as existing techniques in realizing) of body, but this compressor block is made up of the structure of low weight, high rigidity and their a small amount of raw material of manufacture needs.

The preferred embodiment that the present invention proposes is by open in detail in Fig. 2-4, and this illustrates compressor block 21(target of the present invention).

Compressor block 21 comprises at least one access portal 22 that can allow the driving component that plunger actuation apparatus 32 passes through, wherein preferably eccentric shaft of this plunger actuation apparatus 32, and this eccentric shaft is connected to the motor drive shaft 31 that serves as bent axle.But, it should be noted that and can use equally any other equality unit 32 of power piston and not change scope of the present invention.

In the preferred embodiment of body 21, at least one piston sheath 23 is arranged in the position of access portal 22 that is substantially perpendicular to driving component, and described piston sheath 23 can hold the piston of compressor 34.Piston sheath 23 is designed to hold and allows piston 34 to carry out in himself and swings sliding movement, so that the direction along the access portal 22 of driving component is moved, make it allow refrigerant gas to enter and when they compress this refrigerant gas in the time that contrary direction is moved.

Therefore, it is highly important that, the internal surface of piston sheath 23 has high dimensional accuracy (so that the desirable gap 34 of guarantee and piston, ensure tightness) and suitable surface roughness (to minimize the friction between piston 34 and piston sheath 23, therefore reducing the heating of power loss and two parts).

Allowing with the distribution of compressed refrigerant gas of compression process managed by valve body (not shown), and this valve body is arranged in the part 26 of arranging together with piston sheath 23.

Described valve body limits the geometrical shape of this part 26, and preferably but be not that the valve assembly that comprises inevitably " bypass " formula only flows along the direction of wishing to realize gas, but this valve body can be replaced by equality unit, and does not therefore affect scope of the present invention.

Described body 21 also comprises at least one, but preferred four support extension parts 24 that are arranged in the end of body, this extension part is subdivided into two front support extension part 24a and two rear support extension part 24b.These support extension part 24 intentions and allow body 21 to be arranged on compressor case.

Body 21 shown in Fig. 2 to 4 comprises: at least one structural walls 28a, and at least one first member that this at least one structural walls 28a limiting structure connects, connects this part 26 and front support extension part 24a; With at least one structural walls 28b, at least one second component that this at least one structural walls 28b limiting structure connects, connects this part 26 and front support extension part 24a.In a preferred embodiment,

wall

28a and 28b comprise at least one section of physical interconnection each other.

In a preferred embodiment, body 21 comprises the structural walls 28a of two substantial symmetry.

Equally, in a preferred embodiment, body 21 comprises the structural walls 28b of two substantial symmetry.

Therefore,

wall

28a and 28b are preferably provided with the part of curve substantially and limit the periphery of the main engine body 21 being limited by two pairs of walls, and every a pair of wall comprises structural walls 28a and the structural walls 28b of layout symmetrically and physical interconnection each other.

The use of the girth member 24c that connects two front support extension part 24a is provided in addition.In a preferred embodiment, described girth member 24c has curve geometry.

These

walls

28a and 28b provide rigidity for body of the present invention, and this is because they provide mechanical strength in multiple degrees of freedom, even if they are made up of very thin cross section.Therefore, notice, the cross section of

structural walls

28a and 28b is arranged for the load of support along the direction of their high moment of inertia, provides high rigidity with a small amount of required raw material, therefore causes light weight and economic body 21 more.

The access portal 22 of referenced drive member, notices, it is the structure connection of four reinforcing parts 27 and body 21 by least one but preferably.

Shall also be noted that in the structure of body 21, arrange and cause a large amount of opening 25 by the structure the being connected to form rigidity of

wall

28a and 28b and reinforcing part 27 or permanent, there is no raw material at this opening.This opening 25 represents the volumetric spaces of the high percentage being limited by body 21, this be due to, they are there is no raw-material space, the raw material of the larger percentage of representative are saved (when compared with prior art compressor block).

Due to the existence of this opening 25, also obtain good relationship " volume/surface of heat exchange ", this provides the remarkable improvement (when compared with prior art compressor block) of heat dissipation by convection current.Once compressor block 21 can be with larger easiness its warm that dissipates, result is the lower mean temperature of body 21, and this lower mean temperature represents the higher thermal efficiency of compressor.

The opening 25 associated with

structure

28a and 28b also provides low transfer voice rate for body of the present invention, and this is because they provide non-tablet for it, and compared with the body of the compressor of prior art, flat board more easily vibrates.

Still reference configuration wall 28b notices in Fig. 4, and in the situation of eccentric shaft representative that electric notor 31 is interconnected to connecting rod 33, the motion of the driving component of their skirted pistons 32 limits the zone of action of connecting rod 33.In this, be imposed to motor drive shaft 31 by rotatablely moving, eccentric shaft will move on the rotating locus under the identical central of motor drive shaft, but radial displacement, for the piston associated with connecting rod 33 34 provides straight line motion alternately.

In a preferred embodiment, body 21 is formed by metallic material monomer part, and therefore body 21 is preferably manufactured by casting process, can change this casting process (process of material and acquisition) and area of influence not.The example of alternate embodiment for example comprises the employing of the body 21 of the polymer material formation of manufacturing by plastic injection process.

Although it should be noted that preferable configuration form of the present invention is shown, should be appreciated that those skilled in the art can realize any omission, substitute and structural change, and do not depart from claimed spirit and scope.Also clearly regulation, with substantially the same mode carry out identical function with realize identical result element all combinations within the scope of the invention.Described embodiment's element is also expected completely and conceives by substituting of other element.

Also it should be noted that the description providing based on accompanying drawing relates to only for the possible embodiment of target of the present invention in the above, and the actual range of this target is defined in claims.

Claims

1. a compressor block (21), described compressor block comprises at least one access portal (22), at least one front support extension part (24a) and at least one part (26) of driving component, it is characterized in that, described compressor block comprises by the structure forming with lower component:

At least one first member that structure between described part (26) and described front support extension part (24a), that limited by least one structural walls (28a) connects;

At least one second component that structure between described part (26) and described front support extension part (24a), that limited by least one structural walls (28b) connects;

Described structural walls (28a, 28b) comprises at least one section of physical interconnection each other, and

Described structural walls (28a, 28b) limits the main periphery of described compressor block (21).

2. compressor block according to claim 1 (21), is characterized in that, described compressor block is provided with the structural walls (28a) of two substantial symmetry.

3. compressor block according to claim 1 (21), is characterized in that, described compressor block is provided with the structural walls (28b) of two substantial symmetry.

4. compressor block according to claim 1 (21), is characterized in that, described compressor block comprises at least one girth member (24c) being arranged between described front support extension part (24a).

5. compressor block according to claim 1 (21), is characterized in that, described structural walls (28a, 28b) is made up of the part of curve substantially.

6. compressor block according to claim 1 (21), is characterized in that, described structural walls (28b) limits the operating area of connecting rod (33).