CN209370071U - One kind can noise reduction flange, compressor and air-conditioning system - Google Patents
One kind can noise reduction flange, compressor and air-conditioning system Download PDFInfo
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- CN209370071U CN209370071U CN201821990145.0U CN201821990145U CN209370071U CN 209370071 U CN209370071 U CN 209370071U CN 201821990145 U CN201821990145 U CN 201821990145U CN 209370071 U CN209370071 U CN 209370071U
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- flange
- noise reduction
- flowing lumen
- silencing cavity
- exhaust outlet
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Abstract
The utility model provide one kind can noise reduction flange, compressor and air-conditioning system, be related to Compressor Technology field, solve that muffler processing cost is high and flange can not itself noise reduction the technical issues of.The noise reduction flange includes exhaust outlet, is opened in silencing cavity of at least one of the described flange for noise reduction；The silencing cavity is connected to the exhaust outlet respectively and the external of the flange is connected to or obstructs with noise reduction and be vented.The utility model can play the role of noise reduction to the air-flow of exhaust outlet discharge in the case where not using muffler and be vented.And then it can quickly and effectively optimize compressor air-discharging noise, and reduce using high production cost caused by muffler.
Description
Technical field
The utility model relates to Compressor Technology fields, can noise reduction flange, compressor and air-conditioning system more particularly, to one kind
System.
Background technique
Compressor can generate noise in the process of running, and pneumatic noise occupies greatly.As shown in figure 3, wherein
Fig. 3 is that compressor uses muffler denoising structure schematic diagram in the prior art.
Currently used is to install muffler 20 in resistance additional at the upper exhaust outlet 11 of upper flange 10, under lower flange 30
Resistance bottom silencer 40 is installed at exhaust outlet 31 additional, to weaken exhaust airstream noise.Wherein, upper flange 10 and lower flange 30 are right respectively
The upper and lower sides of cylinder 50 should be installed on.
But control weakens exhaust airstream noise at present, there are many kinds of muffler structures.And the processing of muffler is to pass through
High-cost mould development, stamping steel plate form.Specific different mold is purchased every time, and price is higher, designs and real
Test many and diverse, and flange itself can not realize noise reduction.
Utility model content
The utility model first aspect be designed to provide one kind can noise reduction flange, it is existing in the prior art to solve
Muffler processing cost is high and flange can not itself noise reduction the technical issues of.
To achieve the above object, the utility model provides following technical scheme:
One kind provided by the utility model can noise reduction flange, including exhaust outlet, further includes: be opened in the flange extremely
Few one is used for the silencing cavity of noise reduction；The silencing cavity be connected to respectively with the exhaust outlet and the external connection of the flange or
Barrier is with noise reduction and is vented.
Based on the above technical solution, the utility model can also do following improvement.
Further, it is described can noise reduction flange, including flange body and the cover board being covered in the flange body；It is described
Silencing cavity is formed between the flange body and the cover board；The exhaust outlet is blocked in the cover board.
Further, it is described can noise reduction flange, the silencing cavity by the flowing lumen that is opened in the flange respectively with
The exhaust outlet connection is connected to or obstructs with the external of the flange.
Further, it is described can noise reduction flange, the flowing lumen includes interconnected the first flowing lumen and the second circulation
Chamber, first flowing lumen are connected to the exhaust outlet, and second flowing lumen is connected to or obstructs with the external of the flange；Institute
Silencing cavity is stated to be connected to second flowing lumen.
Further, it is described can noise reduction flange, the first flowing lumen circumferencial direction opens up, the second flowing lumen setting
It is opened up at least one and along the circumferential direction of first flowing lumen.
Further, it is described can noise reduction flange, the cross section of first flowing lumen and second flowing lumen is formed as
Arc, rectangle, square or one of trapezoidal.
Further, it is described can noise reduction flange, the silencing cavity is set as multiple, and be formed as it is in series or in parallel with each other or
Sections in series part in parallel.
Further, it is described can noise reduction flange, the silencing cavity be according to noise reduction target frequency bands and the expansion chamber that is arranged or/
With Helmholz resonance chamber.
The utility model second aspect is designed to provide a kind of compressor, to solve noise reduction existing in the prior art
Device processing cost is high and flange can not itself noise reduction the technical issues of.
To achieve the above object, the utility model provides following technical scheme:
A kind of compressor provided by the utility model, including as described in the utility model first aspect can noise reduction flange.
The utility model third aspect is designed to provide a kind of air-conditioning system, to solve existing in the prior art disappear
Sound device processing cost is high and flange can not itself noise reduction the technical issues of.
To achieve the above object, the utility model provides following technical scheme:
A kind of air-conditioning system provided by the utility model, including compressor, the compressor include such as the utility model the
It can noise reduction flange described in one side.
The beneficial effects of the utility model are: by opening up at least one silencing cavity in flange, and distinguish silencing cavity
It is connected to exhaust outlet and the external of flange is connected to or obstructs, so as to arrange in the case where not using muffler exhaust outlet
Air-flow out plays the role of noise reduction and is vented.And then it can quickly and effectively optimize compressor air-discharging noise, and reduce use and disappear
High production cost caused by sound device.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the utility model schematic perspective view；
Fig. 2 is the utility model flange overlooking structure diagram；
Fig. 3 is that compressor uses muffler denoising structure schematic diagram in the prior art.
1- exhaust outlet in figure, 2- silencing cavity, 3- flange body, 4- cover board, 5- flowing lumen, 31- hollow-out parts, 51- are first-class
Cavity, the second flowing lumen of 52-, 521- are connected to chamber, and 522- obstructs chamber, 523- noise reduction parallel connection chamber, and 524- noise reduction is connected chamber, on 10-
Flange, the upper exhaust outlet of 11-, the upper muffler of 20-, 30- lower flange, exhaust outlet under 31-, 40- bottom silencer, 50- cylinder.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
The utility model first aspect provide one kind can noise reduction flange, including exhaust outlet 1 further includes being opened in flange
At least one be used for noise reduction silencing cavity 2.Silencing cavity 2 be connected to respectively with exhaust outlet 1 and the external connection of flange or obstruct with
Noise reduction is simultaneously vented.
Specifically, as depicted in figs. 1 and 2, wherein Fig. 1 is the utility model schematic perspective view.Fig. 2 is that this is practical new
Type flange overlooking structure diagram.
Silencing cavity 2 is opened in flange, that is, is opened in the inside of flange.Silencing cavity 2 be connected to respectively with exhaust outlet 1 and
The external connection of flange, so as to make the air-flow gone out from exhaust outlet 1 enter silencing cavity 2 carry out after noise reduction processing recirculation to
The outside of flange.Or after silencing cavity 2 carries out noise reduction, when the outer barrier of silencing cavity 2 and flange, in order to reach noise reduction and
The effect of exhaust, it is multiple that those skilled in the art is easy to know that silencing cavity 2 can be set to, and the air-flow after noise reduction can be through circulating
Road enters other and external 2 recirculation of silencing cavity being connected to of flange to the outside of flange.To play the work of noise reduction and exhaust
With.
In order to make from the airflow that exhaust outlet 1 is gone out to silencing cavity 2, exhaust outlet 1 is blocked in the end face of flange, thus
So that silencing cavity 2 is played the role of noise reduction, and the discharge flange of the air-flow after noise reduction can be made to reach exhaust.
Flange can be upper flange, and the air-flow being discharged after 2 noise reduction of silencing cavity processing from upper flange may finally flow to
The cavity that flange and motor, compressor housing inner wall surround, and it is harmless to other component.And being suitable for the utility model can disappear
The compressor of sound flange can be rotor-type compressor, it is of course also possible to be the compressor that other types can be equally applicable in,
This will not enumerate.
The utility model implement, by opening up at least one silencing cavity 2 in flange, and make silencing cavity 2 respectively with exhaust
1 connection of mouth is connected to or obstructs with the external of flange, so as to the gas that exhaust outlet is discharged in the case where not using muffler
Stream plays the role of noise reduction and is vented.And then it can quickly and effectively optimize compressor air-discharging noise, and reduce using muffler institute
Caused by high production cost.
Optionally embodiment, including flange body 3 and the cover board 4 being covered in flange body 3.2 shape of silencing cavity
At between flange body 3 and cover board 4.Exhaust outlet 1 is blocked in cover board 4.
Specifically, as depicted in figs. 1 and 2, in order to facilitate the installation of and processing, flange includes flange body 3 and cover board 4.Lid
Plate 4 can be fixedly mounted by the 1 place end face of exhaust outlet of bolt and flange body 3.The silencing groove for forming silencing cavity 2 can be opened
Set on the 1 place end face of exhaust outlet of flange body 3, so that silencing cavity 2 is formed in cover board 4 and flange body 3 after installing cover board 4
Between.Simultaneously in order to make from the airflow that exhaust outlet 1 is gone out to silencing cavity 2, exhaust outlet 1 is blocked in cover board 4, that is, is covered
The lid of plate 4 sets exhaust outlet 1, and then air-flow is avoided to go out flange from cover board 4 without silencing cavity 2 from flange.
Optionally embodiment, silencing cavity 2 are connected to exhaust outlet 1 respectively by the flowing lumen 5 being opened in flange,
External with flange is connected to or obstructs.
Specifically, as depicted in figs. 1 and 2, flowing lumen 5 is opened in flange, and the air-flow warp for going out from exhaust outlet 1
Air-flow outside through flowing lumen 5 to flange of the flowing lumen 5 to silencing cavity 2, after noise reduction.In one embodiment, flowing lumen 5 can be with shape
At between flange body 3 and cover board 4, circulation groove is opened up in the end face of the exhaust outlet 1 of flange body 3, then cover board 4 is covered on
Circulation groove is to form flowing lumen 5.
Further, flowing lumen 5 includes interconnected the first flowing lumen 51 and the second flowing lumen 52.First flowing lumen 51
It is connected to exhaust outlet 1.Second flowing lumen 52 is connected to or obstructs with the external of flange.Silencing cavity 2 is connected to the second flowing lumen 52.?
In one embodiment, further, 51 circumferencial direction of the first flowing lumen is opened up, and the second flowing lumen 52 is set as at least one and along
The circumferential direction of one flowing lumen 51 opens up.
Specifically, as depicted in figs. 1 and 2, the first flowing lumen 51 can be formed as the closed circular knot that circumferencial direction opens up
Structure, exhaust outlet 1 is on the first flowing lumen 51 and communicates therewith, the second flowing lumen 52 opened up along the circumferential direction of the first flowing lumen 51 and with
The connection of first flowing lumen 51.So as to circulate in the first flowing lumen 51 from the air-flow that exhaust outlet 1 is gone out and full of the
The second circulation groove 52 is circulated to after one flowing lumen 51.Second circulation groove 52 number setting can according to actual use need and
It is fixed.
Second flowing lumen 52 can be formed as be connected to chamber 521, be connected to chamber 521 both ends respectively with the first flowing lumen 51 and method
Hollow-out parts 31 on blue ontology 3 are connected to.Silencing cavity 2 is opened on connection chamber 521.To which the air-flow gone out from exhaust outlet 1 is through the
To connection chamber 521, recirculation carries out being circulated to hollow-out parts through connection chamber 521 after noise reduction processing into silencing cavity 2 one flowing lumen 51
31.To which flange is discharged through connection chamber 521 in 2 noise reduction of silencing cavity treated air-flow.
Second flowing lumen 52 can be formed as obstructing chamber 522, and one end of barrier chamber 522 is connected to the first flowing lumen 51, separately
One end is connected to silencing cavity 2 and the outer barrier with flange.To by 2 noise reduction of silencing cavity treated air-flow through obstructing chamber 522
Be back to the first flowing lumen 51 and to the second flowing lumen 52 for being connected to hollow-out parts 31 and be circulated to hollow-out parts 31 again, reach noise reduction,
The effect of exhaust.
Certainly, in some embodiments, the first flowing lumen 51 can also form open type cyclic structure, that is, first-class
Cavity 51 can form the structure with certain arc length around the center of flange.Second flowing lumen 52 is along the first circulation
The arc length direction of chamber 51 opens up.
Further, the cross section of the first flowing lumen 51 and the second flowing lumen 52 be formed as arc, rectangle, square or
It is one of trapezoidal.
Specifically, as shown in Figure 1, the generally use of the ring structure of the first flowing lumen 51 is cast, by the first flowing lumen
51 cross section is set as semicircular arc structure, to play the role of being conducive to structure excessively and prevent stress from concentrating.Second
The cross section of flowing lumen 52 can use rectangular or square structure.
It should be noted that section is exactly the section that imagination cuts open object from somewhere.General cross section is in wide direction
Section, longitudinal section be from the section of length direction, such as a cylindrical body, as soon as its cross section is exactly a circle, longitudinal section
It is a rectangle；One cone, longitudinal section are triangle, and cross section is circle.
Optionally embodiment, silencing cavity 2 are set as multiple, and are formed as in series or in parallel with each other or sections in series
Part in parallel.
Specifically, as depicted in figs. 1 and 2, the air-flow gone out from exhaust outlet 1 can circulate through the first flowing lumen 51 to the second
Noise reduction processing is carried out to silencing cavity 2 after chamber 52 and flows out to the second flowing lumen 52, then the hollow-out parts through being opened in flange body 3
31 discharge flanges.
Silencing cavity 2 is opened in the second flowing lumen 52, and the second flowing lumen 52 may include noise reduction parallel connection chamber 523 and noise reduction series connection
Chamber 524.On noise reduction parallel connection chamber 523, two silencing cavities 2 can be oppositely arranged on noise reduction parallel connection chamber 523, to form parallel connection
Mode.On noise reduction series connection chamber 524, two silencing cavities 2 can be sequentially communicated setting along the direction of noise reduction series connection chamber 524, thus
Form series system.Silencing cavity 2 can be opened in the second flowing lumen 52 simultaneously in series and/or in parallel.It is multiple to disappear
Sound chamber 2 can be arranged on demand in flange according to practical noise reduction target frequency bands.
Optionally embodiment, the expansion chamber or/and He Muhuo that silencing cavity 2 is arranged for foundation noise reduction target frequency bands
Hereby resonant cavity.
Specifically, as depicted in figs. 1 and 2, those skilled in the art is easy to according to expansion chamber and Helmholz resonance chamber
Design principle the size of silencing cavity 2 is set according to noise reduction target frequency bands.And suitable type is selected according to noise reduction target frequency
Silencing cavity 2 be also to be readily apparent, details are not described herein.In the above embodiments, expansion is opened up on connection chamber 521
Chamber opens up Helmholz resonance chamber in the end of barrier chamber 522, it is total that Helmholtz in parallel is opened up on noise reduction parallel connection chamber 523
Shake chamber, opens up concatenated expansion chamber on noise reduction series connection chamber 524.
The utility model second aspect provides a kind of compressor, including disappearing as described in the utility model first aspect
Sound flange.The utility model third aspect provides a kind of air-conditioning system, including compressor, and the compressor includes as this is practical
It can noise reduction flange described in novel first aspect.
Specifically, by above with respect to can noise reduction flange detailed description, the technical personnel in the technical field are easy to
To include it is according to the present utility model can noise reduction flange compressor and air-conditioning system.
Here for first choice it should be noted that " inside " is directed towards the direction in accommodating space center, " outside " is far from accommodating
The direction in space center.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model can be to above-described embodiment
It is changed, modifies, replacement and variant, should be covered within the scope of the utility model.Therefore, the utility model
Protection scope should be based on the protection scope of the described claims.
Claims (10)
1. one kind can noise reduction flange, including exhaust outlet (1), which is characterized in that further include:
It is opened in silencing cavity (2) of at least one of the described flange for noise reduction；
The silencing cavity (2) is connected to the exhaust outlet (1) respectively and the external of the flange is connected to or obstructs with noise reduction side by side
Gas.
2. according to claim 1 can noise reduction flange, which is characterized in that including flange body (3) and be covered on the method
Cover board (4) on blue ontology (3)；The silencing cavity (2) is formed between the flange body (3) and the cover board (4)；It is described
Exhaust outlet (1) is blocked in the cover board (4).
3. according to claim 1 can noise reduction flange, which is characterized in that the silencing cavity (2) is by being opened in the method
Flowing lumen (5) in orchid is connected to respectively with the exhaust outlet (1) and the external connection or barrier of the flange.
4. according to claim 3 can noise reduction flange, which is characterized in that the flowing lumen (5) includes interconnected
One flowing lumen (51) and the second flowing lumen (52), first flowing lumen (51) are connected to the exhaust outlet (1), the second
Cavity (52) is connected to or obstructs with the external of the flange；The silencing cavity (2) is connected to second flowing lumen (52).
5. according to claim 4 can noise reduction flange, which is characterized in that the first flowing lumen (51) circumferencial direction is opened
If second flowing lumen (52) is set as at least one and opens up along the circumferential direction of first flowing lumen (51).
6. according to claim 4 can noise reduction flange, which is characterized in that first flowing lumen (51) and the second
The cross section of cavity (52) is formed as arc, rectangle, square or one of trapezoidal.
7. according to claim 1 can noise reduction flange, which is characterized in that the silencing cavity (2) is set as multiple, and is formed
For in series or in parallel with each other or sections in series part in parallel.
8. according to claim 1 can noise reduction flange, which is characterized in that the silencing cavity (2) is according to noise reduction target frequency
Section and be arranged expansion chamber or/and Helmholz resonance chamber.
9. a kind of compressor, which is characterized in that including it is as claimed in any one of claims 1 to 8 can noise reduction flange.
10. a kind of air-conditioning system, which is characterized in that including compressor, the compressor includes such as any one of claim 1 to 8
Described can noise reduction flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821990145.0U CN209370071U (en) | 2018-11-29 | 2018-11-29 | One kind can noise reduction flange, compressor and air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821990145.0U CN209370071U (en) | 2018-11-29 | 2018-11-29 | One kind can noise reduction flange, compressor and air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209370071U true CN209370071U (en) | 2019-09-10 |
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ID=67834694
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821990145.0U Active CN209370071U (en) | 2018-11-29 | 2018-11-29 | One kind can noise reduction flange, compressor and air-conditioning system |
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| CN (1) | CN209370071U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454397A (en) * | 2019-07-02 | 2019-11-15 | 珠海格力电器股份有限公司 | A kind of compressor flange structure and compressor |
| CN112524034A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524033A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524031A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524032A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112555156A (en) * | 2020-12-29 | 2021-03-26 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
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2018
- 2018-11-29 CN CN201821990145.0U patent/CN209370071U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454397A (en) * | 2019-07-02 | 2019-11-15 | 珠海格力电器股份有限公司 | A kind of compressor flange structure and compressor |
| CN110454397B (en) * | 2019-07-02 | 2020-05-19 | 珠海格力电器股份有限公司 | Compressor flange structure and compressor |
| CN112524034A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524033A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524031A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524032A (en) * | 2020-12-29 | 2021-03-19 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112555156A (en) * | 2020-12-29 | 2021-03-26 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524033B (en) * | 2020-12-29 | 2022-05-27 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524032B (en) * | 2020-12-29 | 2022-05-27 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112555156B (en) * | 2020-12-29 | 2022-05-27 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524031B (en) * | 2020-12-29 | 2022-05-27 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
| CN112524034B (en) * | 2020-12-29 | 2022-05-27 | 珠海格力电器股份有限公司 | Flange structure, pump body assembly and fluid machine |
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