CN205349657U - Piston actuating lever, piston cylinder subassembly and compressor - Google Patents
Piston actuating lever, piston cylinder subassembly and compressor Download PDFInfo
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- CN205349657U CN205349657U CN201620065427.4U CN201620065427U CN205349657U CN 205349657 U CN205349657 U CN 205349657U CN 201620065427 U CN201620065427 U CN 201620065427U CN 205349657 U CN205349657 U CN 205349657U
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Abstract
The utility model relates to a compressor technical field, in particular to piston actuating lever, piston cylinder subassembly and compressor. The utility model provides a piston actuating lever, its first end is used for and hinge joint, and its second end is used for being connected with piston drive arrangement, and is equipped with one section at least constriction portion between its first end and the second end, and one section at least constriction portion is out of shape so that the first end of piston actuating lever can take place along the deflection of the orientation of radial force when the piston receives the radial force. The utility model provides a self -adaptation adjustment is carried out to the mismatch error for connecting piston and piston drive arrangement's piston actuating lever, its the transmission effect that not only can play the axial force, in addition because including the one section at least constriction portion that has less radial rigidity, it can be to owing to making progress in the footpath between piston that design or processing assembly etc. Led to the fact and the cylinder body to the radial atress of piston can be effectively reduced, the friction loss between piston and the cylinder body is reduced.
Description
Technical field
This utility model relates to Compressor Technology field, particularly to a kind of piston drive rod, piston cylinder assembly and compressor.
Background technology
Piston cylinder, generally includes cylinder body and is arranged in cylinder body and cooperatively forms the piston of compression chamber with cylinder body, and piston moves back and forth acting in cylinder body.Therefore, the frictional force between piston and cylinder body can reduce the work efficiency of piston cylinder.Below for the impact on work efficiency of the frictional force between open piston and cylinder body the cylinder of the compressor being applied to refrigerator and air-conditioning.
It is applied to the compressor of refrigerator and air-conditioning, generally include cylinder and piston driver, and the compressor (abbreviation linear compressor) driven by linear electric motors and the compressor (abbreviation rotary compressor) two kinds driven by electric rotating machine can be divided into by the difference of piston driver.Existing linear compressor, generally includes cylinder body, piston and linear electric motors, and wherein, piston two ends are by spring supporting, and linear electric motors drive piston to do linear reciprocating motion in the horizontal direction.And existing rotary compressor, then include cylinder body, piston and electric rotating machine, the poor starting problem that during in order to avoid compressor start, piston causes at top dead center position, electric rotating machine stagger during the compressor design driven certain angle (general 1-3mm) by the center at cylinder-bore center Yu crankshaft hole.Both compressors, it does linear reciprocating motion to promote air work in compression chamber each through piston in cylinder body, and the gas compression of low-temp low-pressure becomes high temperature and high pressure gas, final condensed device, capillary tube and vaporizer complete the circulation of whole refrigeration system.
But, in linear compressor, during piston movement, spring is in the alternately transition status of compression and extended state, owing to spring is elastomer, when above-mentioned alternately conversion, the deformation of spring necessarily causes that the driving force acting on piston, with cylinder axis, certain inclination angle occurs, therefore, there is rubbing action between piston and cylinder body.And in rotary compressor, due to cylinder-bore center and crankshaft hole center not at grade, piston is bound to that in motor process cylinder body has a lateral component, thus always has certain friction loss, is all very disadvantageous to compressor performance or the reliability of part.
Visible, no matter it is linear compressor, or, all there is out-of-alignment phenomenon between piston and cylinder body in rotary compressor, and when piston and cylinder body are not coaxial, piston can be applied radial force by cylinder body, then frictional force is produced, owing to frictional force can consume the energy being originally used for acting, therefore between piston and cylinder body, frictional force between cylinder body and piston can affect the cylinder mechanical efficiency to compression intracavity gas, reduces work efficiency and the reliability of compressor.
In order to reduce the friction of piston and cylinder body, compressor should ensure that in assembling process piston is coaxial with cylinder body as far as possible, to reduce the cylinder body radial force to its generation in piston movement process.But it practice, owing to designing itself, and the impact of the factor such as part's machining errors and rigging error, it is difficult to ensure that being coaxially disposed completely between piston and cylinder body, this means that always there is frictional dissipation between piston and cylinder body.Therefore, need a kind of structure of design badly, it is capable of the self-adaptative adjustment to the piston caused due to design or process and assemble factor etc. with cylinder body mismatch error diametrically, when so the axis between piston with cylinder body is no longer coaxial, namely piston be subject to cylinder body apply radial force effect time, this structure can adjust the axis of piston so that piston moves back and forth along the axis of cylinder body all the time, and then effectively reduces the frictional dissipation between piston and cylinder body.
Utility model content
A technical problem to be solved in the utility model is: realizes the self-adaptative adjustment to the piston caused due to design or process and assemble factor etc. with cylinder body mismatch error diametrically, reduces the frictional dissipation between piston and cylinder body.
In order to solve above-mentioned technical problem, this utility model provides a kind of piston drive rod being arranged between piston and piston driver, additionally provides a kind of piston cylinder assembly and compressor simultaneously.
According to first aspect of the present utility model, this utility model provides a kind of piston drive rod, first end of this piston drive rod is for being connected with piston, second end of piston drive rod is for being connected with piston driver, and it is provided with at least one section of necking section between the first end of this piston drive rod and the second end, when piston is subject to radial force, at least one section of necking section deforms so that the first end of piston drive rod can take place along the deflection in the direction of radial force.
Alternatively, at least one section of necking section is the first necking section.
Alternatively, to be the first necking section and the second necking section, the first necking section and the second necking section set gradually along the direction of the second end by the first end of piston drive rod to piston drive rod at least one section of necking section.
Alternatively, the minimum outer diameter of necking section is the 31 to 32 of the external diameter of piston drive rod；And/or, the length of necking section is 3 to 10 times of the minimum outer diameter of corresponding necking section.
Alternatively, compared with the second end of piston drive rod, necking section is arranged closer to the first end of piston drive rod.
Alternatively, piston drive rod is made up of spring steel wire material or piano wire material.
According to second aspect of the present utility model, this utility model additionally provides a kind of piston cylinder assembly, this piston cylinder assembly includes piston, piston drive rod, cylinder body and piston driver, piston is arranged in cylinder body and cooperatively forms compression chamber with cylinder body, piston drive rod is piston drive rod of the present utility model, first end of piston drive rod is connected with piston, second end of piston drive rod is connected with piston driver, and piston driver drives piston to move back and forth along the central axis of cylinder body by piston drive rod.
Alternatively, piston is the hollow cylindrical configuration that one end is closed, first end of piston drive rod stretches into the hollow cylindrical configuration inside of piston and is connected with one end of the closing of hollow cylindrical configuration, remaining at least partially within inside the hollow cylindrical configuration of piston of the necking section of piston drive rod.
Alternatively, piston driver is linear electric motors or electric rotating machine, and the second end of piston drive rod is connected with the mover of linear electric motors or electric rotating machine.
Alternatively, piston cylinder assembly also includes resilient support assemblies, and resilient support assemblies supports for the mover of linear electric motors or electric rotating machine is formed.
Alternatively, resilient support assemblies includes motor support plate resonator board spring, the stator of the first end of motor support plate and linear electric motors or electric rotating machine leans, second end of motor support plate is connected with the edge of resonant panel spring, and the center of resonant panel spring is connected with one end away from piston drive rod of the mover of linear electric motors or electric rotating machine.
According to the third aspect of the present utility model, this utility model additionally provides a kind of compressor, and this compressor includes piston cylinder assembly of the present utility model.
Piston drive rod for connecting piston and piston driver provided by the utility model, it can not only play the transmission effect of axial force, realize piston driver to transmit to the power of piston, and there is the smaller radial at least one section of necking section to rigidity owing to including, mismatch error diametrically between the piston and the cylinder body that cause due to design or process and assemble etc. can be carried out self-adaptative adjustment by it, it is thus possible to effectively reduce piston radial stress, reduce the frictional dissipation between piston and cylinder body.And, piston drive rod simple in construction of the present utility model, processing and assembly cost are relatively low, it is easy to accomplish.
By exemplary embodiment of the present utility model being described in detail referring to accompanying drawing, further feature of the present utility model and advantage thereof will be made apparent from.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 illustrates the structural representation of the piston drive rod of this utility model first embodiment.
Fig. 2 illustrates the partial enlarged drawing of the necking section of the piston drive rod of embodiment illustrated in fig. 1.
Fig. 3 illustrates the structural representation of the piston drive rod of this utility model the second embodiment.
Fig. 4 illustrates the structural representation of the piston cylinder assembly of this utility model one embodiment.
Fig. 5 illustrates the assembling schematic diagram of the piston of embodiment illustrated in fig. 4 piston cylinder assembly, piston drive rod and mover.
In figure:
1, piston drive rod；11, the first necking section；12, the second necking section；13, the first screw thread；14, the second screw thread；
2, piston；
31, cylinder body；32, electric machine casing；
41, iron core；42, coil；43, magnet steel support；44, the first magnet steel；45, the second magnet steel；
51, motor support plate；52, resonant panel spring；53, the first cushion block；54, the second cushion block；55, the 3rd cushion block.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Description only actually at least one exemplary embodiment is illustrative below, never as any restriction to this utility model and application or use.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not carrying out creative work premise, broadly fall into the scope of this utility model protection.
The known technology of person of ordinary skill in the relevant, method and apparatus are likely to be not discussed in detail, but in the appropriate case, described technology, method and apparatus should be considered to authorize a part for description.
In description of the present utility model, it will be appreciated that, the noun of locality is as " front, after, on, under, left, right ", " laterally, vertically, vertically, level " and " top, the end " etc. indicated orientation or position relationship be normally based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, when not making contrary explanation, these nouns of locality do not indicate that and imply that the device of indication or element must have specific orientation or with specific azimuth configuration and operation, therefore it is not intended that restriction to this utility model protection domain；The noun of locality " inside and outside " refers to inside and outside the profile relative to each parts itself.
In description of the present utility model; it will be appreciated that; the word such as " first ", " second " is used to limit parts; it is intended merely to facilitate and corresponding parts are distinguished; as there is no Stated otherwise; above-mentioned word does not have particular meaning, therefore it is not intended that restriction to this utility model protection domain.
Piston drive rod provided by the utility model, it is arranged between piston and piston driver, for the driving force of piston driver is transferred to piston.With reference to Fig. 1-5, the first end of piston drive rod 1 of the present utility model is for being connected with piston 2, and the second end is for being connected with piston driver, and is provided with at least one section of necking section between the first end and a second end.
Piston drive rod 1 for connecting piston 2 and piston driver provided by the utility model, it can not only play the transmission effect of axial force, realize piston driver to transmit to the power of piston 2, and there is the smaller radial at least one section of necking section to rigidity owing to including, mismatch error diametrically between the piston and the cylinder body that cause due to design or process and assemble etc. can be carried out self-adaptative adjustment by it, it is thus possible to effectively reduce the radial force of piston 2, reduce the frictional dissipation between piston 2 and cylinder body, improve work efficiency and functional reliability.
And, this utility model only by arranging the piston drive rod 1 with at least one section of necking section between piston 2 and piston driver, is namely capable of the self-adaptative adjustment to piston 2 with cylinder body mismatch error diametrically, simple in construction, being easily achieved, processing and assembly cost are relatively low.
The minimum outer diameter φ d of at least one section of necking section of piston drive rod 1 of the present utility model can be the external diameter φ D of piston drive rod 11 to2；And/or, the length L1 of at least one section of necking section can be 3 to 10 times of the minimum outer diameter φ d of corresponding necking section.Such piston drive rod 1 has more satisfactory axial rigidity and radial rigidity ratio such that it is able to more effectively realize the purpose of this utility model.
In addition, change along with piston 2 radial force direction and size, piston drive rod 1 needs alternating bending deformation, this means that piston drive rod 1 is faced with higher fatigue rupture risk, therefore, in order to improve the fatigue strength of piston drive rod 1, piston drive rod 1 can be made up of the spring steel wire material or piano wire material with high-fatigue strength, such as 65Mn, 50CrVA etc., so can effectively reduce the fatigue rupture risk of piston drive rod 1, improve the functional reliability of piston drive rod 1, extend the service life of piston drive rod 1.
Fig. 1-2 illustrates the first embodiment of this utility model piston drive rod 1, in this first embodiment, is provided only with one section of first necking section 11 between the first end and second end of piston drive rod 1.
As shown in Figure 1, the first necking section 11 that length is L1 that the piston drive rod 1 of this first embodiment includes first connecting rod section that length is L2, length is the second connecting rod section of L3 and is connected between first connecting rod section and second connecting rod section, first end of piston drive rod 1 is arranged on first connecting rod section end, for being connected with piston 2, and the second end of piston drive rod 1 is arranged on second connecting rod section end, for being connected with piston driver.
The radial rigidity of the first necking section 11 is less, it is easier to radial deformation, therefore, when because of own axes and cylinder body axis, piston 2 occurs that bias is subject to the radial force that cylinder body applies, first necking section 11 can produce flexural deformation in time, first connecting rod section for being connected with piston 2 can be occurred wilfully along the direction of radial force, such piston 2 also is able to produce the deflection along radial force direction therewith, and the direction of radial force is and the piston axis skew direction opposite direction relative to cylinder body axis, visible, under the effect of the first necking section 11, piston 2 can produce the deflection towards direction, cylinder body axis place when being subject to the radial force of cylinder body, piston 2 can be moved back and forth along cylinder body central axis again, it is thus possible to the radial forces reduced between piston 2 and cylinder body, and then effectively reduce the frictional dissipation between piston 2 and cylinder body.Simultaneously, second connecting rod section owing to being connected with piston driver still has higher axial rigidity and radial rigidity, therefore, when piston 2 is subject to radial force effect, second connecting rod section deforms diametrically hardly, remains able to play good axial force transmission effect.
The connection of this utility model piston drive rod 1 and piston 2 and piston driver can be accomplished in several ways.In this first embodiment, thread connecting mode is adopted to realize.As shown in Figure 1, first end of piston drive rod 1 is provided with the first screw thread 13 for being connected with piston, and the second end of piston drive rod 1 is provided with the second screw thread 14 for being connected with piston driver, so can realize the assembling of piston drive rod 1 and piston 2 and piston driver more conveniently, and process more convenient, less costly.
Additionally, so that first connecting rod section is easier to occur radial deformation and second connecting rod section can transmit axial force better, compared with the second end of piston drive rod 1, the first necking section 11 can be arranged closer to the first end of piston drive rod 1.As shown in Figure 1, in this embodiment, compared with second connecting rod section, first necking section 11 is arranged closer to first connecting rod section, so can increase the impact of the first necking section 11 first connecting rod section on being connected with piston 2 further, and reduce the impact of the first necking section 11 second connecting rod section on being connected with piston driver further, make when piston 2 is subject to radial force, first connecting rod section is easier to radial deformation, and second connecting rod section can keep higher axially and radially rigidity, realize the transmission effect of axial force better.
As shown in Figure 2, in this embodiment, the external diameter φ D of piston drive rod 1 is φ 6mm, 0.45 times of the external diameter φ D that minimum outer diameter φ d is piston drive rod 1 of the first necking section 11, length L1 is its minimum outer diameter φ d 5 times of first necking section 11, and piston drive rod 1 is made up of 65Mn spring steel material.
In order to more intuitively illustrate that piston drive rod 1 of the present utility model has the axial rigidity and radial rigidity suited the requirements, the mechanical property of piston drive rod 1 has been carried out simulation analysis by inventor, and the existing simulation analysis result for this first embodiment piston drive rod 1 illustrates.
For being applied to linear compressor or the rotary compressor of refrigerator, it is generally adopted environment-friendly type R600a coolant as cold-producing medium.ASHRAE23 and ISO947 testing standard according to compressor, the condensing pressure of R600a coolant is 0.77MPa.And according to many experiments result, inventor have found that radial force that the piston 2 that various cumulative error causes is subject to is generally not over the active force of 10N.
Based on above-mentioned boundary condition, the load axially applying 700N at piston drive rod 1, and in the load radially applying 10N of piston drive rod 1, the stress deformation simulation analysis result of first embodiment piston drive rod 1 can be obtained, wherein, when axially applying the active force of 700N, the maximum stress 120MPa of piston drive rod 1, maximum distortion 0.0104mm；Meanwhile, when radially applying the active force of 10N, the maximum stress of piston drive rod 1 and maximum distortion all betide the first necking section 11 place, wherein maximum stress be sized to 118MPa, and radially maximum distortion be sized to 0.115mm.Visible, the piston drive rod 1 of this first embodiment, its operationally radial-deformation be about 10 times of axial deflection, namely its axial rigidity is much larger than radial rigidity, effective transmission of axial force can not only be ensured, and can occur bending and deformation easily when radial force, it is achieved the self-adaptative adjustment to piston 2 with cylinder body mismatch error, effectively reduces frictional dissipation.
Certainly, piston drive rod 1 of the present utility model is not limited to the version of above-mentioned first embodiment, can also arrange the necking section of two sections or more than three sections between its first end and second end.In the second embodiment illustrated in fig. 3, between the first end and second end of piston drive rod 1, namely it is provided with two sections of necking sections.As shown in Figure 3, the difference of this second embodiment and first embodiment is in that, in this second embodiment, the first necking section 11 and the second necking section 12 it is provided with between first end and second end of piston drive rod 1, wherein, first necking section 11 is arranged between first connecting rod section L2 and third connecting rod section L4, and the second necking section 12 is arranged between third connecting rod section L4 and second connecting rod section L3, namely the first necking section 11 and the second necking section 12 set gradually along the direction of the second end by the first end of piston drive rod 1 to piston drive rod 1.The operation principle of the piston drive rod 1 of this second embodiment is identical with first embodiment, repeats no more herein.
Visible, this utility model utilizes piston drive rod 1 axial rigidity being provided with necking section much larger than the characteristic of radial rigidity, under the premise of effectively transmission ensureing axial force, it is capable of the self-adaptative adjustment of mismatch error between piston 2 and cylinder body, it is thus possible to the problem that the frictional force that solves dexterously between piston 2 and the cylinder body caused due to various inevitable errors is bigger, improve service behaviour and the work efficiency of the piston cylinder with this piston drive rod 1.
This utility model second aspect additionally provides a kind of piston cylinder assembly.With reference to Fig. 4-5, piston cylinder assembly of the present utility model includes piston 2, cylinder body 31, piston driver and piston drive rod 1 of the present utility model, wherein, piston 2 is arranged in cylinder body 31 and cooperatively forms compression chamber with cylinder body 31, first end of piston drive rod 1 is connected with piston 2, and the second end of piston drive rod 1 is connected with piston driver.
Owing to piston drive rod 1 of the present utility model is capable of the self-adaptative adjustment of mismatch error between piston 2 and cylinder body 31, therefore, even if there is mismatch error due to factors such as design and process and assemble between the piston 2 of piston cylinder assembly of the present utility model and cylinder body 31, cause that the axis of piston 2 and the axis of cylinder body 31 cannot ensure to be arranged concentrically, but due under the effect of piston drive rod 1, piston 2 can produce the deflection making own axes tend to cylinder body 31 dead in line, therefore, the piston 2 of this utility model piston cylinder assembly can remain along the central axis of cylinder body 31 under the driving force effect of piston driver and move back and forth, thus reducing between piston 2 and cylinder body 31 in interaction radially, reduce frictional force therebetween, reduce frictional force to the loss of energy and the abrasion to piston 2 and cylinder body 31, improve mechanical efficiency and the functional reliability of piston cylinder assembly.
Piston cylinder assembly of the present utility model can be cylinder assembly or cylinder component, and piston driver can adopt linear electric motors, electric rotating machine or other driving mechanisms to be driven.Owing to the piston drive rod 1 action principle in different piston cylinder assemblies is all identical, therefore, piston cylinder assembly of the present utility model is illustrated by the cylinder next only driven for the linear electric motors shown in Fig. 4-5.
As illustrated in figures 4-5, in this embodiment, piston cylinder assembly includes cylinder body 31, electric machine casing 32, piston 2, piston drive rod 1, linear electric motors and resilient support assemblies.
Linear electric motors include stator and mover.As shown in Figure 4, stator includes iron core 41, insulation framework and coil 42, and wherein, insulation framework acts primarily as supporting role, coil 42 is wound in the inside of insulation framework, and the iron core 41 being made up of stalloy is then fixed on the outside magnetic circuit passage forming linear electric motors of insulation framework.As shown in Figure 5, mover includes magnet steel support 43 and the magnet steel being arranged on magnet steel support 43, wherein, the plastic materials such as the PPS (polyphenylene sulfide) of high intensity, PEEK (polyether-ether-ketone) or PET (polyester resin) preferentially selected by magnet steel support 43, and the less demanding application scenario of electric efficiency can also selected cast aluminium alloy；And the difference according to operating mode, magnet steel generally can arrange 1 piece or 2 pieces, as it is shown in figure 5, in this embodiment, mover includes two blocks of magnet steel, i.e. the first magnet steel 44 and the second magnet steel 45.
Piston 2 is connected with the mover of linear electric motors by piston drive rod 1.As shown in Figure 5, in this embodiment, the hollow cylindrical configuration that piston 2 is closed for one end, first end of piston drive rod 1 stretches into the hollow cylindrical configuration inside of piston 2 and is connected with one end of the closing of hollow cylindrical configuration, inside the hollow cylindrical configuration remaining at least partially within piston 2 of at least one section of necking section of piston drive rod 1.This allows for piston 2 no matter which section on whole length direction is subject to the effect of radial force F, and the necking section of piston drive rod 1 all can occur bending and deformation in time, it is achieved the self-adaptative adjustment to piston 2 with the mismatch error of cylinder body 31.
Resilient support assemblies supports for the mover of linear electric motors is formed.As shown in Figure 4, in this embodiment, resilient support assemblies includes motor support plate 51 resonator board spring 52, first end of motor support plate 51 and stator lean, second end of motor support plate 51 is connected with the edge of resonant panel spring 52, and the center of resonant panel spring 52 is connected with one end away from piston drive rod 1 of mover.Resonant panel spring 52 is for the support certain for mover offer, and when piston 2 moves, the border of resonant panel spring 52 is fixed, and core then offsets along with piston 2 moves, thus forming resonator system.Resonant panel spring 52 has the function of flexible member and existing support component concurrently, it has higher radial rigidity and axial rigidity ratio, therefore, it can provide enough rigidity for moving back and forth of mover and have certain stroke when material stress is permitted, and, owing to without wearing terrain, therefore, resonant panel spring 52 has higher reliability and longer service life.
The molded line of resonant panel spring 52 preferentially adopts involute math equation, so can reduce the tensile stress of resonant panel spring 52 further, improve the stressed effect of resonant panel spring 52, improve its functional reliability, extend its service life, certainly, the molded line of resonant panel spring 52 can also adopt the helix of different radian to seamlessly transit to be designed.
In this embodiment, piston cylinder assembly includes two pieces of resonance version springs 52, but it practice, according to real work feature, piston cylinder assembly can include 1 piece or polylith resonant panel spring 52, and these are all within protection domain of the present utility model.
Cylinder body 31 is used for housing piston 2, and electric machine casing 32 is then for housing the stator of linear electric motors, mover and resilient support assemblies.As shown in Figure 4, in this embodiment, cylinder body 31 and electric machine casing 32 are structure as a whole, wherein, the diameter of cylinder body 31 is less than the diameter of electric machine casing 32, one end away from electric machine casing 32 of cylinder body 31 is closed, and the open at one end away from cylinder body 31 of electric machine casing 32, so when assembling, the moving parts of the structure that can first piston 2, piston drive rod 1 and mover be assembled into one, then the one end opened wide by electric machine casing 2 by this moving parts loads in cylinder body 31 and the electric machine casing 32 of integrative-structure, finally installs stator and resilient support assemblies again.
Concrete assembling process can complete in accordance with the following steps:
(1) moving parts is assembled.It is first mover by magnet steel support the 43, first magnet steel 44 and the second magnet steel 45 pre-assembled, then the second end of piston drive rod 1 is fixed on mover, again piston 2 is connected with the first end of piston drive rod 1 afterwards, completes the assembling of moving parts.
(2) this moving parts is loaded in cylinder body 31 and electric machine casing 32 so that piston 2 and cylinder body 31 cooperatively form compression chamber, and mover is then placed in electric machine casing 32.
(3) installation of stator and resilient support assemblies is completed.Stator one end is fixed on the bracket at tail part of cylinder body 31, then motor support plate 51 is placed at the other end of stator, place resonant panel spring 52 afterwards, and between two pieces of resonant panel springs 52 by under set gradually the first cushion block the 53, second cushion block 54 and the 3rd cushion block 55, finally by the hole, location designed in advance, with bolt, resonant panel spring 52 and motor support plate 51 are coupled together.
So far the assembling of piston cylinder assembly is completed.When piston cylinder assembly works, linear electric motors are piston driver, permanent magnetic field produced by rotary electromagnetic field, this electromagnetic field and the first magnet steel 44 and the second magnet steel 45 can be produced after coil 42 passes into alternating current interact, drive piston 2 to do linear reciprocating motion inside cylinder body 31.This piston cylinder assembly is applied in the compressor of refrigerator or air-conditioning, is namely capable of the compression to coolant and exhaust process, the gas compression of low-temp low-pressure becomes high temperature and high pressure gas, final condensed device, capillary tube and vaporizer complete the circulation of whole refrigeration system.
Therefore, this utility model third aspect additionally provides a kind of compressor, and this compressor includes piston cylinder assembly of the present utility model.
The foregoing is only exemplary embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (12)
1. a piston drive rod (1), first end of described piston drive rod (1) is for being connected with piston (2), second end of described piston drive rod (1) is for being connected with piston driver, it is characterized in that, being provided with at least one section of necking section between first end and second end of described piston drive rod (1), when described piston (2) is subject to radial force, described at least one section of necking section deforms so that the first end of described piston drive rod (1) can take place along the deflection in the direction of described radial force.
2. piston drive rod (1) according to claim 1, it is characterised in that described at least one section of necking section is the first necking section (11).
3. piston drive rod (1) according to claim 1, it is characterized in that, described at least one section of necking section is the first necking section (11) and the second necking section (12), and described first necking section (11) and described second necking section (12) set gradually along by the direction of the first end of described piston drive rod (1) to the second end of described piston drive rod (1).
4. piston drive rod (1) according to claim 1, it is characterised in that the external diameter (φ D) that the minimum outer diameter (φ d) of described necking section is described piston drive rod (1)ExtremelyAnd/or, 3 to 10 times of the minimum outer diameter (φ d) that the length (L1) of described necking section is corresponding necking section.
5. piston drive rod (1) according to claim 1, it is characterised in that compared with the second end of described piston drive rod (1), described necking section is arranged closer to the first end of described piston drive rod (1).
6. piston drive rod (1) according to claim 1, it is characterised in that described piston drive rod (1) is made up of spring steel wire material or piano wire material.
7. a piston cylinder assembly, including piston (2), piston drive rod, cylinder body (31) and piston driver, described piston (2) is arranged in described cylinder body (31) and cooperatively forms compression chamber with described cylinder body (31), it is characterized in that, described piston drive rod be as arbitrary in claim 1-6 as described in piston drive rod (1), first end of described piston drive rod (1) is connected with described piston (2), second end of described piston drive rod (1) is connected with described piston driver, described piston driver drives described piston (2) to move back and forth along the central axis of described cylinder body (31) by described piston drive rod (1).
8. piston cylinder assembly according to claim 7, it is characterized in that, the hollow cylindrical configuration that described piston (2) is closed for one end, first end of described piston drive rod (1) stretches into the hollow cylindrical configuration inside of described piston (2) and is connected with one end of the closing of described hollow cylindrical configuration, inside the hollow cylindrical configuration remaining at least partially within described piston (2) of the necking section of described piston drive rod (1).
9. piston cylinder assembly according to claim 7, it is characterised in that described piston driver is linear electric motors or electric rotating machine, described second end of piston drive rod (1) is connected with the mover of described linear electric motors or electric rotating machine.
10. piston cylinder assembly according to claim 9, it is characterised in that described piston cylinder assembly also includes resilient support assemblies, described resilient support assemblies supports for the mover of described linear electric motors or electric rotating machine is formed.
11. piston cylinder assembly according to claim 10, it is characterized in that, described resilient support assemblies includes motor support plate (51) resonator board spring (52), the stator of the first end of described motor support plate (51) and described linear electric motors or electric rotating machine leans, second end of described motor support plate (51) is connected with the edge of described resonant panel spring (52), and the center of described resonant panel spring (52) is connected with one end away from described piston drive rod (1) of the mover of described linear electric motors or electric rotating machine.
12. a compressor, it is characterised in that described compressor include as arbitrary in claim 7-11 as described in piston cylinder assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065427.4U CN205349657U (en) | 2016-01-22 | 2016-01-22 | Piston actuating lever, piston cylinder subassembly and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620065427.4U CN205349657U (en) | 2016-01-22 | 2016-01-22 | Piston actuating lever, piston cylinder subassembly and compressor |
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| CN205349657U true CN205349657U (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620065427.4U Active CN205349657U (en) | 2016-01-22 | 2016-01-22 | Piston actuating lever, piston cylinder subassembly and compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464943A (en) * | 2016-01-22 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston drive rod, piston cylinder assembly and compressor |
| CN110410292A (en) * | 2019-08-13 | 2019-11-05 | 黄石东贝电器股份有限公司 | A kind of Linearkompressor |
-
2016
- 2016-01-22 CN CN201620065427.4U patent/CN205349657U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464943A (en) * | 2016-01-22 | 2016-04-06 | 珠海格力节能环保制冷技术研究中心有限公司 | Piston drive rod, piston cylinder assembly and compressor |
| CN110410292A (en) * | 2019-08-13 | 2019-11-05 | 黄石东贝电器股份有限公司 | A kind of Linearkompressor |
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