CN103291614B - Scroll compressor having a plurality of scroll members - Google Patents
Scroll compressor having a plurality of scroll members Download PDFInfo
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- CN103291614B CN103291614B CN201210049939.8A CN201210049939A CN103291614B CN 103291614 B CN103291614 B CN 103291614B CN 201210049939 A CN201210049939 A CN 201210049939A CN 103291614 B CN103291614 B CN 103291614B
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Abstract
The present invention relates to a scroll compressor. The scroll compressor (100) includes: a housing (2); a compression mechanism (1) provided in the housing and including a non-orbiting scroll member (10) provided with a notch (111, 111b, 111c) and an orbiting scroll member (19); a discharge valve assembly (30) disposed in the recess, the discharge valve assembly including a valve body (32) and a retainer (34, 34b, 34c) for retaining at least one component of the valve body; and a seal assembly (40) disposed about the discharge valve assembly. Wherein an annular groove (14, 14b, 14c) is defined by at least the retainer for receiving at least a portion of the seal assembly. According to the present invention, the structure of the non-orbiting scroll can be simplified, and fluid leakage between the respective compression chambers can be effectively prevented.
Description
Technical field
The present invention relates to a kind of scroll compressor.
Background technique
Scroll compressor has been used extensively in because efficiency is higher in many fluids (such as refrigeration agent) compression applications occasion.
Scroll compressor generally comprises by the compressing mechanism determined scroll element and dynamic scroll element and form.Determine scroll element comprise extend from the rear side of its substrate (namely deviate from front cover and acoustical panel and towards the side of dynamic scroll element) determine scrollwork in roughly spiral, it is roughly spiral dynamic scrollwork that dynamic scroll element then comprises what extend from the front side (namely towards front cover, acoustical panel and the side of determining scroll element) of its substrate.Spirality is determined scrollwork and spirality and is moved scrollwork and cooperatively interact to limit pressing chamber between which.Dynamic scroll element by driving relative to determine scroll element translation rotation (that is, the axis of dynamic scroll element rotates relative to the axis determining scroll element, but dynamic scroll element and determine both scroll elements itself not around they respective axis rotations), thus make to determine by spirality the volume that scrollwork and spirality move the pressing chamber that scrollwork limits and change, to compress the refrigeration agent in pressing chamber.
Referring to Fig. 1, Fig. 2, Fig. 3 A-C and Fig. 4 is to the discharge valve assembly of the scroll compressor according to correlation technique and determine being described for the structure etc. of installing discharge valve assembly on scroll element, wherein, Fig. 1 illustrates the stereogram determining scroll element according to correlation technique, Fig. 2 illustrates the sectional drawing determining scroll element according to correlation technique, Fig. 3 A is the plan view of the maintenance circle illustrated according to correlation technique, Fig. 3 B is the sectional drawing taken along the line B-B in Fig. 3 A of the maintenance circle illustrated according to correlation technique, Fig. 3 C is the stereogram of the maintenance circle illustrated according to correlation technique, and Fig. 4 determines scroll element according to mainly the illustrating of scroll compressor of correlation technique, the section Local map of the parts such as discharge valve assembly and acoustical panel.
According to correlation technique, generally the approximate center of the substrate determining scroll element 10a is provided with floss hole 11a.In addition, scroll compressor generally also comprises acoustical panel 20a and front cover, and the approximate center of acoustical panel 20a is provided with discharge passage 21a, and is limited with emission quotas between acoustical panel 20a and front cover.In compressing mechanism, being flowed into emission quotas by the refrigeration agent compressed via determining the floss hole 11a of scroll element 10a, the discharge passage 21a of acoustical panel 20a, and then discharging joint via the refrigeration agent being arranged at front cover place and discharging scroll compressor.
Usually, the floss hole 11a place determining scroll element 10a is provided with discharge valve assembly 30a.In the operation process of scroll compressor, the movable valve member of the valve body 32a in discharge valve assembly 30a is opened according to the pressure condition of its both sides, thus allows the higher pressure refrigerant gas through overcompression to flow to emission quotas by discharge valve assembly 30a.On the contrary, when such as scroll compressor is shut down, the movable valve member of the valve body 32a in discharge valve assembly 30a is closed thus is closed floss hole 11a, stops refrigeration agent to be back to compressing mechanism from emission quotas thus.
Usually, except valve body 32a (valve body 32a and then comprise movable valve member etc. again), discharge valve assembly 30a also comprises the maintenance circle 34a of the axial displacement for controlling (restriction) valve body 32a.Keep circle 34a be generally mounted to regularly threadably around floss hole 11a be formed in determine scroll element 10a substrate on front side of (with determine scroll element 10a substrate be formed with the contrary side of the rear side of determining scrollwork) annular flange flange 12a (inner annular flange 12a) on.
In addition, usually black box 40a is also provided with at floss hole 11a place, for floss hole 11a and other place are kept apart, floss hole 11a is only communicated with emission quotas with discharge passage 21a, prevents the pressure leakage of the higher pressure refrigerant gas through overcompression thus.Black box 40a generally comprises seal ring 41a and spring 42a, spring 42a in axial direction seal ring 41a is biased to be resisted against such as acoustical panel 20a rear side surface on, make to provide reliable sealing while black box 40a has axial elasticity.In order to provide the installing space in particular for spring 42a, general another annular flange flange 13a (outer annular flanges 13a) processed at the radial outside place of annular flange flange 12a around annular flange flange 12a, thus, between inner annular flange 12a and outer annular flanges 13a, form the annular groove 14a for arranging spring 42a and seal ring 41a.
It can thus be appreciated that, in the related, keeping circle and black box to install, needing determining on front side of the substrate of scroll element, to process two annular flange flange (inner annular flange and outer annular flanges).
Therefore, on the one hand, make the structure of determining scroll element become complicated, thus increase the difficulty of processing determining scroll element, and correspondingly increase the manufacture cost of determining scroll element and then whole scroll compressor.
On the other hand, owing to needing to arrange outer annular flanges at the radial outside place of inner annular flange, therefore, when maintaining the radial dimension determining scroll element and being constant, the space that will inevitably cause being formed in equally the annular recess 15a (see Fig. 1 and Fig. 4) determining to locate on front side of the substrate of scroll element diminishes.Annular recess 15a is for holding floating seal assembly thus forming back pressure chamber.Back pressure chamber provides pressure for determining scroll element, thus is pressed against on dynamic scroll element by determining scroll element, prevents the fluid between each pressing chamber from leaking thus.When the space of annular recess diminishes, the space of back pressure chamber is inevitable also along with diminishing, the back pressure chamber that space diminishes will be difficult to ensure the pressure determined scroll element and provide stable and enough, thus the fluid between each pressing chamber probably can be caused to leak.
It should be pointed out that the technical information that this part provides is intended to contribute to understanding the present invention better, and prior art of the present invention might not be formed.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of scroll compressor of at least one be intended in the problems referred to above existed in solution correlation technique.
According to the present invention, provide a kind of scroll compressor, described scroll compressor comprises: housing; Compressing mechanism, described compressing mechanism to be arranged in described housing and to comprise determines scroll element and dynamic scroll element, describedly determines scroll element and is provided with recess; Discharge valve assembly, described discharge valve assembly is arranged in described recess, and described discharge valve assembly comprises valve body and holder, and described holder is for keeping at least one parts of described valve body; And black box, described black box is arranged around described discharge valve assembly.Wherein, the annular groove at least partially for holding described black box is limited by least described holder.
In above-mentioned scroll compressor, preferably, described holder is substantially in toroidal.
In above-mentioned scroll compressor, preferably, described holder comprises base portion, radial extension part and axial extension part, and, limit described annular groove by the radial extension part of at least described holder and axial extension part.
In above-mentioned scroll compressor, preferably, described radial extension part extends radially inwardly from the top of described base portion, thus the stepped down part being suitable at least one parts keeping described valve body is formed between the lower surface and the inner peripheral surface of described base portion of described radial extension part, and, described axial extension part upwards extends from the radial inner end of described radial extension part, thus forms the portion of topping bar at least partially being suitable for supporting described black box between the outer surface and the upper surface of described radial extension part of described axial extension part.
In above-mentioned scroll compressor, preferably, described recess comprises lower part and upper part, and, limit described annular groove by the radial extension part of described holder, the axial extension part of described holder together with the upper part of described recess.
In above-mentioned scroll compressor, preferably, described recess comprises lower part and upper part and between described lower part and described upper part, is formed with the approximate horizontal step surface being at least partially suitable for supporting described black box, further, described annular groove is limited by the axial extension part of the radial extension part of described holder, described holder, the upper part of described recess together with the step surface of described recess.
In above-mentioned scroll compressor, preferably, described holder comprises holder body and radial extension part, and described holder body comprises upper part and lower part, and, limit described annular groove by the upper part of the holder body of at least described holder.
In above-mentioned scroll compressor, preferably, described holder body extends roughly point-blank along the axial direction of described holder, and described radial extension part extends radially inwardly from the roughly axially middle part of described holder body, thus forms the stepped down part being suitable at least one parts keeping described valve body between the lower surface of described radial extension part and the inner peripheral surface of the lower part of described holder body.
In above-mentioned scroll compressor, preferably, described recess comprises lower part and upper part and between described lower part and described upper part, is formed with the approximate horizontal step surface being at least partially suitable for supporting described black box, further, described annular groove is limited by the upper part of the holder body of described holder, the upper part of described recess together with the step surface of described recess.
In above-mentioned scroll compressor, preferably, described recess comprises lower part and upper part, and the outer surface of the base portion of described holder engages with the lower part of described recess, thus described holder is mounted to the described recess determining scroll element.
In above-mentioned scroll compressor, preferably, described recess comprises lower part and upper part, and, the outer surface of the lower part of the holder body of described holder engages with the lower part of described recess, thus described holder is mounted to the described recess determining scroll element.
In above-mentioned scroll compressor, preferably, described holder comprises the otch of a pair diametrically contraposition for holding setting tool, described otch by excision described axial extension part and described radial extension part in any one or all both a part and formed.
In above-mentioned scroll compressor, preferably, described holder comprises the otch of a pair diametrically contraposition for holding setting tool, and described otch is formed by a part for the upper part of the described holder body of excision.
In above-mentioned scroll compressor, preferably, described scroll compressor is totally enclosed type scroll compressor, one of semi-enclosed scroll compressor and open scroll compressor.
According to one or more mode of executions of the present invention, by arranging the upper part of axial extension part (thus forming portion of topping bar) or holder body on holder, and/or, by being formed with step surface in the recess limited by the annular flange flange of determining on the substrate of scroll element, under the state that holder is mounted to recess, holder and determine scroll element substrate annular flange flange between form annular groove for installing black box.
Therefore, on the one hand, another annular flange flange (outer annular flanges) at the radial outside place processing the annular flange flange (inner annular flange) being positioned at above-mentioned restriction recess on the front surface of the substrate determining scroll element can be exempted, thus simplify the structure of determining scroll element, and correspondingly reduction is determined the difficulty of processing of scroll element and is reduced the manufacture cost of determining scroll element and then whole scroll compressor.
On the other hand, owing to no longer needing to arrange outer annular flanges at the radial outside place of inner annular flange, therefore when maintaining the radial dimension determining scroll element and being constant, effectively can increase the space of the annular recess at the front surface place being formed in the substrate determining scroll element equally, thus effectively increase the space of back pressure chamber.Like this, when the space of back pressure chamber is suitably increased, the pressure that back pressure chamber provides stable and enough for determining scroll element can be guaranteed, thus effectively prevent the fluid between each pressing chamber from leaking.
Accompanying drawing explanation
Fig. 1 illustrates the stereogram determining scroll element according to correlation technique;
Fig. 2 illustrates the sectional drawing determining scroll element according to correlation technique;
Fig. 3 A is the plan view of the maintenance circle illustrated according to correlation technique;
Fig. 3 B is the sectional drawing taken along the line B-B in Fig. 3 A of the maintenance circle illustrated according to correlation technique;
Fig. 3 C is the stereogram of the maintenance circle illustrated according to correlation technique;
Fig. 4 mainly illustrates according to the scroll compressor of correlation technique the section Local map determining the parts such as scroll element, discharge valve assembly and acoustical panel;
Fig. 5 is the sectional arrangement drawing of the scroll compressor illustrated according to exemplary embodiment of the invention;
Fig. 6 illustrates the stereogram determining scroll element according to exemplary embodiment of the invention;
Fig. 7 illustrates the sectional drawing determining scroll element according to exemplary embodiment of the invention;
Fig. 8 A is the plan view of the holder illustrated according to exemplary embodiment of the invention;
Fig. 8 B is the sectional drawing taken along the line A-A in Fig. 8 A of the holder illustrated according to exemplary embodiment of the invention;
Fig. 8 C is the stereogram of the holder illustrated according to exemplary embodiment of the invention;
Fig. 9 mainly illustrates according to the scroll compressor of exemplary embodiment of the invention the section Local map determining the parts such as scroll element, discharge valve assembly and acoustical panel;
Figure 10 is the schematic cross sectional view of holder, annular flange flange and the recess illustrated according to modified example 1 of the present invention; And
Figure 11 is the schematic cross sectional view of holder, annular flange flange and the recess illustrated according to modified example 2 of the present invention.
Embodiment
Referring to Fig. 5, Fig. 6, Fig. 7, Fig. 8 A-C and Fig. 9, exemplary embodiment of the invention is described in detail.Be only for demonstration object to the description of illustrative embodiments, and be never the restriction to the present invention and application or usage.
Fig. 5 is the sectional arrangement drawing of the scroll compressor illustrated according to exemplary embodiment of the invention, Fig. 6 illustrates the stereogram determining scroll element according to exemplary embodiment of the invention, Fig. 7 illustrates the sectional drawing determining scroll element according to exemplary embodiment of the invention, Fig. 8 A is the plan view of the holder illustrated according to exemplary embodiment of the invention, Fig. 8 B is the sectional drawing taken along the line A-A in Fig. 8 A of the holder illustrated according to exemplary embodiment of the invention, Fig. 8 C is the stereogram of the holder illustrated according to exemplary embodiment of the invention, and Fig. 9 determines scroll element according to mainly the illustrating of scroll compressor of exemplary embodiment of the invention, the section Local map of the parts such as discharge valve assembly and acoustical panel.
In Figure 5, scroll compressor indicates with reference character 100 generally.As shown in Figure 5, scroll compressor 100 mainly comprises compressing mechanism 1, housing 2 in general cylindrical shape and electric machine assembly 3.
Housing 2 surrounds compressing mechanism 1 and electric machine assembly 3.Housing 2 generally comprises enclosure body 18, the front cover 22 of (usually also referred to as front side, the right side namely in Fig. 5) that is positioned at discharge side, substantial transverse extension and between enclosure body 18 and front cover 22 acoustical panel 20.In certain embodiments, housing 2 also can comprise and the rear end cover of front cover 22 relative positioning (sign).
Electric machine assembly 3 generally comprises stator 37, rotor 38 and live axle 39.Stator 37 is fixed in housing 2.Rotor 38 is engaged on live axle 39, and live axle 39 drives rotation by rotor 38.Live axle 39 comprises eccentric crank pin (sign).
Compressing mechanism 1 generally comprises determines scroll element 10 and dynamic scroll element 19.Compressing mechanism 1 is driven by electric machine assembly 3.Particularly, when live axle 39 rotates, dynamic scroll element 19 can be driven via crank pin, make dynamic scroll element 19 relative to determining scroll element and 10 carry out translation rotation.In other words, the axis of dynamic scroll element 19 rotates along circular track relative to the axis determining scroll element 10, but moves scroll element 19 and determine both scroll elements 10 itself and can not rotate around their axis separately.
Determine scroll element 10 comprise extend from the rear surface 162 of its substrate 16 determine scrollwork 17 in roughly spiral, it is roughly spiral dynamic scrollwork (sign) that dynamic scroll element 19 then comprises what extend from the front surface (sign) of its substrate.Spirality is determined scrollwork 17 and is moved scrollwork with spirality and cooperatively interact to limit pressing chamber (sign) between which.When dynamic scroll element 19 by driving relative to determine scroll element 10 carry out translation rotation time, determine by spirality the volume that scrollwork 17 and spirality move the pressing chamber that scrollwork limits and change, to compress the refrigeration agent in pressing chamber.
In the illustrated embodiment in which, the approximate center of the substrate 16 determining scroll element 10 is provided with the recess 111 that floss hole 11 and diameter be greater than floss hole 11.One end of floss hole 11 is communicated with recess 111, and the other end is then opened on the rear surface 162 of substrate 16, and floss hole 11 is communicated with the pressing chamber in compressing mechanism 1.The one end open of recess 111 is in the front surface 161 of substrate 16, and the other end is then communicated with floss hole 11.Recess 111 is for holding hereafter by the discharge valve assembly that is described further at least partially.But, in other embodiment, the approximate center of the substrate 16 determining scroll element 10 be provided with run through substrate 16 floss hole 11 (that is, be not provided with the recess that diameter is larger, in other words, floss hole 11 identical with the diameter of recess 111 thus together formed run through floss hole 11 or run through recess 111), in this case, hereafter the discharge valve assembly be described further will be set directly in floss hole 11.
Recess 111 is preferably formed as substantial circular recess.Recess 111 can comprise lower part 112 and upper part 113.In the illustrated embodiment in which, the internal diameter of upper part 113 can be greater than the internal diameter of lower part 112 slightly, thus between lower part 112 and upper part 113, be formed with the step surface 114 at least partially of black box being suitable for supporting and hereafter will being described further.But, in other embodiment, between lower part 112 and upper part 113, step surface 114 can not be formed with.
Can be formed with internal thread at the place at least partially of the inner peripheral surface of lower part 112, this internal thread is used for the fastening holder hereafter will be described further.Upper part 113 by from the further outstanding annular flange flange 12 of the front surface 161 of the substrate 16 determining scroll element 10 around and limit.Upper part 113 is for cooperatively interacting to form the annular groove for black box with a part for holder, and this respect will hereafter be described further.
In the illustrated embodiment in which, the approximate center of acoustical panel 20 is provided with discharge passage 21.In a preferred embodiment, between acoustical panel 20 and front cover 22, emission quotas (also referred to as hyperbaric chamber) 24 is also limited with.Thus, can via determining the floss hole 11 (or also via the recess 111 determining scroll element 10) of scroll element 10, the discharge passage 21 of acoustical panel 20 and flow into emission quotas 24 by the refrigeration agent that compresses in compressing mechanism 1, and then discharge joint 23 via the refrigeration agent being arranged at front cover 22 place and discharge scroll compressor 100 and enter the refrigerant circuit (not shown) of scroll compressor 100 outside.
In the illustrated embodiment in which, recess 111 place determining scroll element 10 is provided with discharge valve assembly 30.Such as, in the operation process of scroll compressor 100, the movable valve member of the valve body 32 in discharge valve assembly 30 is opened according to the pressure condition of its both sides, thus allows the higher pressure refrigerant gas through overcompression to flow to emission quotas 24 by discharge valve assembly 30.On the contrary, when such as scroll compressor 100 is shut down, the movable valve member of the valve body 32 in discharge valve assembly 30 is closed thus is closed floss hole 11, stops refrigeration agent to be back to compressing mechanism 1 from emission quotas 24 thus.
Except valve body 32 (valve body 32 and then comprise movable valve member etc. again), discharge valve assembly 30 also comprises the holder 34 at least one parts of maintaining valve main body 32.Such as, holder 34 is for controlling the axial displacement of at least one parts of (restriction) valve body 32.
In certain embodiments, valve body 32 can comprise movable valve member, fixed valve base and valve stop dog component.Movable valve member can be the sheet form that side be fixed and opposite side is movable.Such as, when the pressure of the pressing chamber in compressing mechanism 1 is enough large relative to the pressure of the discharge passage 21 of acoustical panel 20, the drawer at movable side being resisted against the movable valve member on fixed valve base pushed away from fixed valve base, thus discharge valve assembly 30 is opened.When the pressure of the pressing chamber in compressing mechanism 1 reduces to a certain extent, the drawer at movable side of movable valve member is by means of the natural resiliency of movable valve member and/or be again resisted against on fixed valve base by means of the elastic force of additional resilient member, thus discharge valve assembly 30 is closed.The effect of valve stop dog component is the maximum open position of restriction movable valve member.In these embodiments, the holder 34 of valve assembly 30 can one in the fixed valve base of limiting valve main body 32 and valve stop dog component or all both axial displacement.
In other embodiment, valve body 32 only can comprise movable valve member and valve stop dog component, and is played the effect of fixed valve base by a part for recess 111.In these embodiments, the axial displacement of the valve stop dog component of the holder 34 limiting valve main body 32 of valve assembly 30.
In other embodiment, valve body 32 can only comprise movable valve member and fixed valve base.In these embodiments, holder 34 1 aspect of valve assembly 30 can the axial displacement of fixed valve base of limiting valve main body 32, can also play the work of valve stop dog component in order to limit the maximum open position of movable valve member on the other hand.
More specifically structure about the valve body etc. of discharge valve assembly has in Chinese Patent Application No. 200780042602.1 comparatively to be described in detail.The full content of this patent application is incorporated in the application by reference at this.
In the illustrated embodiment in which, holder 34 is in cardinal principle toroidal (namely in keeping cast formula).Holder 34 preferably includes base portion 341, radial extension part 342 and axial extension part 343.As mentioned above, holder 34 is for controlling the axial displacement of at least one parts in the valve body 32 of (restriction) discharge valve assembly 30.Here it is to be noted that it term " maintenance " and " controlling (restriction) " comprise complete stop and these two kinds of implications of moving-limiting scope.
Base portion 341 is preferably formed as the cirque body of complete closure, and can be formed with outside thread at the place at least partially of the outer surface 346 of base portion 341.This outside thread can engage with the internal thread of above-mentioned recess 111, thus holder 34 is mounted to recess 111 regularly.
Radial extension part 342 extends radially inwardly suitable distance from the top of base portion 341, thus stepped part 347 (that is, stepped down part) is formed between radial extension part 342 (being specially its lower surface) and base portion 341 (being specially its inner peripheral surface).By abutting against with at least one parts of valve body 32, stepped part 347 may be used for the axial displacement of at least one parts of control valve main body 32.
Axial extension part 343 upwards extends from the radial inner end of radial extension part 342, thus extend axially between portion 343 (being specially its outer surface) and radial extension part 342 (being specially its upper surface) and be formed with stepped part 345 (that is, portion of topping bar).Stepped part 345 can play the effect of the spring of black box that support hereafter will be described further.
In the illustrated embodiment in which, holder 34 also comprises the part by excising axial extension part 343 and radial extension part 342 and the otch 344 of a pair diametrically contraposition formed.Otch 344 for holding setting tool, easily holder 34 to be screwed the lower part 112 to recess 111.
Special in Fig. 9, scroll compressor 100 also comprises black box 40.Black box 40 is for keeping apart floss hole 11 and recess 111 with other position (such as back pressure chamber), thus formed from floss hole 11, to recess 111, be communicated with to discharge passage 21 and to the sealed type of emission quotas 24, prevent the pressure leakage of the higher pressure refrigerant gas through overcompression thus.Black box 40 generally comprises Sealing (such as seal ring) 41 and spring (such as helical spring) 42, spring 42 in axial direction Sealing 41 is biased to be resisted against such as acoustical panel 20 rear side surface on, make to provide reliable sealing while black box 40 has axial elasticity.
Same special in Fig. 9, be also formed with annular recess 15 at front surface 161 place of the substrate 16 determining scroll element 10.Annular recess 15 for holding floating seal assembly 151, thus forms back pressure chamber between floating seal assembly 151 and annular recess 15.The bottom of annular recess 15 is formed and makes back pressure chamber form with the middle pressure chamber in compressing mechanism the intercommunicating pore be communicated with.In the operation process of scroll compressor 100, pressure in middle pressure chamber is incorporated in back pressure chamber by intercommunicating pore, thus for determining the pressure that scroll element 10 provides downward, thus being pressed against on dynamic scroll element 19 by determining scroll element 10, leaking to prevent the fluid of compression chamber.
According to exemplary embodiment of the invention, after the lower part 112 holder 34 being mounted to recess 111 with such as engagement thread, limit annular groove 14 (see Fig. 9) primarily of the axial extension part 343 of holder 34, the radial extension part 342 of holder 34 and the annular flange flange 12 (being specially the upper part 113 of the recess 111 limited by annular flange flange 12) be formed on substrate 16.Black box 40 above can be mounted to annular groove 14 by the bottom surface (namely primarily of the surface that the upper surface of the radial extension part 342 of holder 34 serves as) be placed in by its spring 42 in annular groove 14.
Here, it should be noted that, holder 34 shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 A-C and Fig. 9, annular flange flange 12 and by annular flange flange 12 around and the preferable shape of recess 111 limited and structure only for object of demonstrating, according to the present invention, holder, annular flange flange and by annular flange flange around and the shape of recess limited and structure can change, as long as can annular groove be provided thus reliably support and hold black box 40.
Such as, the axial extension part 343 of holder 34 and radial extension part 342 all can be formed as the cirque body of complete closure, and do not arrange the otch of a pair diametrically contraposition for holding setting tool.Or the only one in the axial extension part 343 of holder 34 and radial extension part 342 is formed as the cirque body of complete closure, and form the otch of a pair diametrically contraposition for holding setting tool by a part of excising another one.
Again such as, except otch 344, portion 343 can also be extended axially additional otch is set, make axial extension part 343 be formed by the section more than two thus.In this case, maintaining the suitable intensity of axial extension part 343 with while reliably supporting black box 40, the use of material can also reduced and make the weight of holder 34 itself and whole scroll compressor lighter.
Again such as, holder 34 can be non-circular shape, polygonal shape that such as can be more in limit number.In this case, need to be arranged to that there is corresponding shape by with the recess 111 that holder 34 engages, and need to adopt between holder 34 with recess 111 such as to bond or weld etc. and be fixedly connected with mode.
Referring to Figure 10 and Figure 11 describe according to holder of the present invention, annular flange flange and by annular flange flange around and the modified example 1 of recess limited and modified example 2.
Figure 10 is the schematic cross sectional view of holder, annular flange flange and the recess illustrated according to modified example 1 of the present invention.In modified example 1, the recess 111b limited by annular flange flange 12b comprises lower part 112b and upper part 113b.Especially, the internal diameter of upper part 113b is greater than the internal diameter of lower part 112b, makes recess 111b between lower part 112b and upper part 113b, form the large approximate horizontal step surface 114b being suitable for (such as the spring) at least partially supporting black box 40.
On the other hand, holder 34b comprises holder body 348 and radial extension part 342b.Holder body 348 extends roughly point-blank along the axial direction of holder 34b.Holder body 348 comprises upper part and lower part (all not indicating).The outer surface of the lower part of holder body 348 is fixed to the lower part 112b of recess 111b.Radial extension part 342b extends radially inwardly suitable distance from the roughly axially middle part of holder body 348, thus stepped part 347b (that is, stepped down part) is formed between radial extension part 342b (being specially its lower surface) and the lower part (being specially its inner peripheral surface) of holder body 348.By abutting against with at least one parts of valve body 32, stepped part 347b may be used for the axial displacement of at least one parts of control valve main body 32.
According to modified example 1 of the present invention, after lower part 112b holder 34b being mounted to recess 111b with such as engagement thread, limit the annular groove 14b for supporting and hold black box 40 by the upper part of the holder body 348 of holder 34b and the annular flange flange 12b (being specially upper part 113b and the step surface 114b of the recess 111b limited by annular flange flange 12b) be formed on substrate 16.
Be different from the annular groove 14 (its bottom surface is formed primarily of the upper surface of the radial extension part 342 of holder 34) as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 A-C and Fig. 9, the bottom surface of the annular groove 14b in modified example 1 is formed by the step surface 114b of mouth 111b.
Figure 11 is the schematic cross sectional view of holder, annular flange flange and the recess illustrated according to modified example 2 of the present invention.In modified example 2, the recess 111c limited by annular flange flange 12c comprises lower part 112c and upper part 113c.Recess 111c is also formed with the approximate horizontal step surface 114c being suitable for (such as the spring) at least partially that support black box 40 between lower part 112c and upper part 113c.
On the other hand, holder 34c comprises base portion 341c, radial extension part 342c and axial extension part 343c.In addition, in holder 34c, the stepped part 347c of the axial displacement of at least one parts for control valve main body 32 is formed with (namely between radial extension part 342c (being specially its lower surface) and base portion 341c (being specially its inner peripheral surface), stepped down part), and extend axially between portion 343c (being specially its outer surface) and radial extension part 342c (being specially its upper surface) and be formed with stepped part 345c (that is, portion of topping bar).In a word, the structure basic simlarity of the structure of holder 34c and the holder 34 as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 A-C and Fig. 9.
According to modified example 2 of the present invention, after lower part 112c holder 34c being mounted to recess 111c with such as engagement thread, limit the annular groove 14c for supporting and hold black box 40 by the axial extension part 343c of holder 34c, the radial extension part 342c of holder 34c and the annular flange flange 12c (being specially upper part 113c and the step surface 114c of the recess 111c limited by annular flange flange 12c) be formed on substrate 16.
Be different from the annular groove 14 as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8 A-C and Fig. 9, also be different from the annular groove 14b according to modified example 1, the bottom surface of the annular groove 14c in modified example 2 is formed jointly by the upper surface of the step surface 114c of recess 111c and the radial extension part 342c of holder 34c.
According to the present invention, by arranging the upper part of axial extension part (thus forming portion of topping bar) or holder body on holder, and/or, by being formed with step surface in the recess limited by the annular flange flange of determining on the substrate of scroll element, under the state that holder is mounted to recess, holder and determine scroll element substrate annular flange flange between form annular groove for installing black box.
Therefore, on the one hand, another annular flange flange (outer annular flanges) at the radial outside place processing the annular flange flange (inner annular flange) being positioned at above-mentioned restriction recess on the front surface of the substrate determining scroll element can be exempted, thus simplify the structure of determining scroll element, and correspondingly reduction is determined the difficulty of processing of scroll element and is reduced the manufacture cost of determining scroll element and then whole scroll compressor.Here, in practice, with add the upper part of axial extension part or holder body on the holder that size is less compared with, determine scroll element is arranged outer annular flanges and whole manufacture process will be made larger-size to become more complicated from seeing in comprehensive, and the larger size of determining scroll element mould used of manufacturing dimension can be increased, increase the weight of larger-size processing burden of determining scroll element thus further.
On the other hand, owing to no longer needing to arrange outer annular flanges at the radial outside place of inner annular flange, therefore when maintaining the radial dimension determining scroll element and being constant, effectively can increase the space of the annular recess at the front surface place being formed in the substrate determining scroll element equally, thus effectively increase the space of back pressure chamber.Like this, when the space of back pressure chamber is suitably increased, the pressure that back pressure chamber provides stable and enough for determining scroll element can be guaranteed, thus effectively prevent the fluid between each pressing chamber from leaking.
In this manual, whenever mentioning " illustrative embodiments ", " some embodiments ", " illustrated embodiment ", " other embodiment ", " preferred embodiment " etc., mean that concrete feature, structure or the feature described for this mode of execution/embodiment is included at least one mode of execution/embodiment of the present invention.The different in this manual local appearance of these words differs to establish a capital and refers to same mode of execution/embodiment.In addition, when describing concrete feature, structure or feature for arbitrary mode of execution/embodiment, should think that those skilled in the art can realize this feature, structure or feature in other mode of execution/embodiment in all described mode of execution/embodiments.
Although main, with reference to illustrative embodiments, invention has been described, but should be appreciated that, the present invention is not limited to the embodiment/embodiment describing in detail and illustrate here, when not departing from claims limited range, those skilled in the art can make various change to described illustrative embodiments.
Claims (14)
1. a scroll compressor (100), comprising:
Housing (2);
Compressing mechanism (1), described compressing mechanism (1) to be arranged in described housing (2) and to comprise determines scroll element (10) and dynamic scroll element (19), describedly determine scroll element (10) and be provided with annular flange flange (12,12b, 12c), by described annular flange flange (12,12b, 12c) around the recess (111 with restriction, 111b, 111c) and by described annular flange flange (12,12b, 12c) with described recess (111,111b, 111c) annular recess for the formation of back pressure chamber (15) that separates;
Discharge valve assembly (30), described discharge valve assembly (30) is arranged on described recess (111,111b, 111c), described discharge valve assembly (30) comprises valve body (32) and holder (34,34b, 34c), described holder (34,34b, 34c) is for keeping at least one parts of described valve body (32); And
Black box (40), described black box (40) arranges described recess (111,111b, 111c) and described back pressure chamber to be isolated at the radially inner side of described annular flange flange (12,12b, 12c) around described discharge valve assembly (30),
It is characterized in that, at least limiting the annular groove (14,14b, 14c) for holding described black box (40) at least partially by described holder (34,34b, 34c).
2. scroll compressor (100) as claimed in claim 1, wherein, described holder (34,34b, 34c) is substantially in toroidal.
3. scroll compressor (100) as claimed in claim 1, wherein,
Described holder (34,34c) comprises base portion (341,341c), radial extension part (342,342c) and axial extension part (343,343c),
Further, described annular groove (14,14c) is limited by the radial extension part (342,342c) of at least described holder (34,34c) and axial extension part (343,343c).
4. scroll compressor (100) as claimed in claim 3, wherein,
Described radial extension part (342,342c) from described base portion (341, top 341c) extends radially inwardly, thus at described radial extension part (342, lower surface 342c) and described base portion (341, the stepped down part (347,347c) being suitable at least one parts keeping described valve body (32) is formed between inner peripheral surface 341c)
And, described axial extension part (343,343c) from described radial extension part (342, radial inner end 342c) upwards extends, thus at described axial extension part (343, the portion of topping bar (345,345c) being at least partially suitable for supporting described black box (40) is formed between the upper surface of outer surface 343c) and described radial extension part (342,342c).
5. scroll compressor (100) as claimed in claim 3, wherein,
Described recess (111) comprises lower part (112) and upper part (113),
Further, described annular groove (14) is limited together by the axial extension part (343) of the radial extension part (342) of described holder (34), described holder (34) and the upper part (113) of described recess (111).
6. scroll compressor (100) as claimed in claim 3, wherein,
Described recess (111c) comprises lower part (112c) and upper part (113c) and between described lower part (112c) and described upper part (113c), is formed with the approximate horizontal step surface (114c) being at least partially suitable for supporting described black box (40)
Further, described annular groove (14c) is limited together by the upper part (113c) of the radial extension part (342c) of described holder (34c), the axial extension part (343c) of described holder (34c), described recess (111c) and the step surface (114c) of described recess (111c).
7. scroll compressor (100) as claimed in claim 1, wherein,
Described holder (34b) comprises holder body (348) and radial extension part (342b), and described holder body (348) comprises upper part and lower part,
Further, described annular groove (14b) is limited by the upper part of the holder body (348) of at least described holder (34b).
8. scroll compressor (100) as claimed in claim 7, wherein, described holder body (348) extends roughly point-blank along the axial direction of described holder (34b), and described radial extension part (342b) extends radially inwardly from the roughly axially middle part of described holder body (348), thus forms the stepped down part (347b) being suitable at least one parts keeping described valve body (32) between the lower surface of described radial extension part (342b) and the inner peripheral surface of the lower part of described holder body (348).
9. scroll compressor (100) as claimed in claim 7, wherein,
Described recess (111b) comprises lower part (112b) and upper part (113b) and between described lower part (112b) and described upper part (113b), is formed with the approximate horizontal step surface (114b) being at least partially suitable for supporting described black box (40)
Further, described annular groove (14b) is limited together by the step surface (114b) of the upper part of the holder body (348) of described holder (34b), the upper part (113b) of described recess (111b) and described recess (111b).
10. scroll compressor (100) as claimed in claim 3, wherein,
Described recess (111,111c) comprises lower part (112,112c) and upper part (113,113c),
Further, the base portion (341 of described holder (34,34c), the lower part (112,112c) of outer surface 341c) and described recess (111,111c) engages, thus described holder (34,34c) is mounted to the described recess (111,111c) determining scroll element (10).
11. scroll compressors (100) as claimed in claim 7, wherein,
Described recess (111b) comprises lower part (112b) and upper part (113b),
And, the outer surface of the lower part of the holder body (348) of described holder (34b) engages with the lower part (112b) of described recess (111b), thus described holder (34b) is mounted to the described recess (111b) determining scroll element (10).
12. scroll compressors (100) as claimed in claim 3, wherein, described holder (34,34c) comprise the otch of a pair diametrically contraposition for holding setting tool, described otch is by the described axial extension part (343 of excision, 343c) and described radial extension part (342,342c) in any one or all both a part and formed.
13. scroll compressors (100) as claimed in claim 7, wherein, described holder (34b) comprises the otch of a pair diametrically contraposition for holding setting tool, and described otch is formed by a part for the upper part of the described holder body (348) of excision.
14. scroll compressors (100) as claimed in claim 1, wherein, described scroll compressor (100) is totally enclosed type scroll compressor, one of semi-enclosed scroll compressor and open scroll compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210049939.8A CN103291614B (en) | 2012-02-29 | 2012-02-29 | Scroll compressor having a plurality of scroll members |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210049939.8A CN103291614B (en) | 2012-02-29 | 2012-02-29 | Scroll compressor having a plurality of scroll members |
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| CN103291614B true CN103291614B (en) | 2015-09-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016124120A1 (en) * | 2015-02-03 | 2016-08-11 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
| CN105986996B (en) * | 2015-02-03 | 2018-10-09 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003065270A (en) * | 2001-08-30 | 2003-03-05 | Sanyo Electric Co Ltd | Scroll compressor |
| JP2006300051A (en) * | 2005-04-18 | 2006-11-02 | Copeland Corp | Delivery valve for scroll type compressors |
| CN202510367U (en) * | 2012-02-29 | 2012-10-31 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6537043B1 (en) * | 2001-09-05 | 2003-03-25 | Copeland Corporation | Compressor discharge valve having a contoured body with a uniform thickness |
| US7338265B2 (en) * | 2005-03-04 | 2008-03-04 | Emerson Climate Technologies, Inc. | Scroll machine with single plate floating seal |
| US8517703B2 (en) * | 2010-02-23 | 2013-08-27 | Emerson Climate Technologies, Inc. | Compressor including valve assembly |
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2012
- 2012-02-29 CN CN201210049939.8A patent/CN103291614B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003065270A (en) * | 2001-08-30 | 2003-03-05 | Sanyo Electric Co Ltd | Scroll compressor |
| JP2006300051A (en) * | 2005-04-18 | 2006-11-02 | Copeland Corp | Delivery valve for scroll type compressors |
| CN202510367U (en) * | 2012-02-29 | 2012-10-31 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
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