CN106679248A - Machining method of throttling pressure-reducing pipeline, throttling pressure-reducing device and refrigerator - Google Patents
Machining method of throttling pressure-reducing pipeline, throttling pressure-reducing device and refrigerator Download PDFInfo
- Publication number
- CN106679248A CN106679248A CN201710033184.5A CN201710033184A CN106679248A CN 106679248 A CN106679248 A CN 106679248A CN 201710033184 A CN201710033184 A CN 201710033184A CN 106679248 A CN106679248 A CN 106679248A
- Authority
- CN
- China
- Prior art keywords
- reducing pressure
- regulating flow
- pipeline
- filter house
- molecular sieve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/06—Damage
Abstract
The invention provides a machining method of a throttling pressure-reducing pipeline, a throttling pressure-reducing device and a refrigerator. The machining method of the throttling pressure-reducing pipeline includes the steps that after a connecting pipe, a filtering portion and a first throttling pipe which communicate in sequence are formed through an integrated forming process, a second throttling pipe is formed between the filtering portion and the first throttling pipe through stretching operation; and after a filter net assembly and molecular sieves are put in the filtering portion, the filter net assembly and the molecular sieves are inhibited from being discharged to the connecting pipe through necking operation, and machining of the throttling pressure-reducing pipeline is finished. By means of the technical scheme, the machined and formed throttling pressure-reducing pipeline is of an integrated structure, the purpose of integrating filtering with throttling and pressure reducing is achieved, and therefore the service life of the throttling pressure-reducing pipeline is prolonged.
Description
Technical field
The present invention relates to pipeline field, in particular to a kind of processing method of reducing pressure by regulating flow pipeline, a kind of throttling drop
Pressure device and a kind of refrigerator.
Background technology
At present, the pipeline for producing in prior art is generally individually as shown in figure 1, by condenser 202 and filter 204 and hair
Welding between tubule 206, reaches the purpose of filtration, reducing pressure by regulating flow, and component needs to be subjected to, and at least carrying 2
Solder joint, welding unstable and solder joint oxidizing process can affect properties of product and shorten the service life of product.
Therefore, how only by a kind of reducing pressure by regulating flow pipeline, will filter, reducing pressure by regulating flow is integrated, and then improve product
Service life become technical problem urgently to be resolved hurrily.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art or correlation technique.
For this purpose, it is an object of the present invention to proposing a kind of processing method of reducing pressure by regulating flow pipeline.
Further object is that proposing a kind of reducing pressure by regulating flow device；
Another object of the present invention is to propose a kind of refrigerator.
For achieving the above object, a kind of technical scheme according to the first aspect of the invention, it is proposed that reducing pressure by regulating flow pipeline
Processing method, including：After connecting tube, filter house and the first segment flow tube being sequentially communicated is formed using integral forming process,
The second throttle pipe between filter house and first segment flow tube is formed using stretched operation；In filter house load screen modules and
After molecular sieve, screen modules are limited using necking operation and molecular sieve drains into connecting tube, to complete adding for reducing pressure by regulating flow pipeline
Work.
The processing method of the reducing pressure by regulating flow pipeline of technology according to the present invention scheme, the reducing pressure by regulating flow pipeline for processing is
Integral structure, has reached filtration, the purpose of reducing pressure by regulating flow one, and then improves the service life of reducing pressure by regulating flow pipeline.Its
In, the integral type material formed by integral forming process, Stability Analysis of Structures reliability, can make the fluid long-time of High Temperature High Pressure has
Effect ground preferably experience, without revealing, is brought, after integral type material forming, by stretched operation shape to user by pipeline
Into the second throttle pipe, the caliber size at the second throttle pipe two ends is different, has reached the purpose of reducing pressure by regulating flow, finally, by connection
The opening of pipe is fixed on screen modules between filter house and the second throttle pipe, and molecular sieve is inserted in filter house and filtered
Between screen component, then by the effectively fixed screen modules of necking operation and molecular sieve, can more fully play molecular sieve
Desiccation, reaches more preferable filtering flow effect, and by such scheme, integral type reducing pressure by regulating flow pipeline is processed and assembled more
It is convenient, and the adverse effect that weld job brings can be eliminated, the service life of product is improved, and then improve user satisfaction.
According to above-mentioned technical proposal of the present invention, it is preferable that also include：Enlarging operation is carried out to the open end of connecting tube.
In the technical scheme, enlarging operation is carried out to the opening of connecting tube, for being connected with other parts, make pipeline
Reliable and stable with other parts links together, it is to avoid fluid produces leakage because connector is unstable, needs user
Jing is often keeped in repair to junction, and to user bad experience is brought.
A kind of technical scheme according to the second aspect of the invention, it is proposed that reducing pressure by regulating flow device, including using such as this
The reducing pressure by regulating flow pipeline that arbitrary technical scheme is processed in bright first aspect, the bore of the filter house of reducing pressure by regulating flow pipeline is more than
Or the bore of the connecting tube equal to reducing pressure by regulating flow pipeline.
In the technical scheme, the bore of filter house is big, can accommodate more molecular sieve, and then has reached good mistake
Filter effect, improves the service life of product.
According to above-mentioned technical proposal of the present invention, it is preferable that the scope of the bore in the first throttle portion of reducing pressure by regulating flow pipeline is
0.5~2mm.
In the technical scheme, by first throttle portion, the pressure that the presence at first throttle portion two ends can be kept certain
Difference, while the fluid flow by pipeline can be controlled.
A technical scheme of the invention, it is preferable that screen modules also include：First drainage screen, located at throttling
Connected region between second throttle pipe of blood pressure lowering pipeline and filter house.
In the technical scheme, fluid enters the second throttle pipe after molecular sieve filtration, then through the first drainage screen,
Fluid in the further filter pipeline of first drainage screen, it is to avoid the fluid with impurity flows into next part along pipeline, makes
Into pipe-line system failure, and then product is damaged, to user bad experience is brought.
According to above-mentioned technical proposal of the present invention, it is preferable that screen modules also include：Second drainage screen, located at connecting tube
Connected region between filter house.
In the technical scheme, fluid is flowed into before filter house, is first passed around the second filter house and is filtered, it is to avoid carries
The fluid of large granular impurity enters molecular sieve, improves the service life of molecular sieve, and then has reached more preferable filter effect.
According to above-mentioned technical proposal of the present invention, it is preferable that also include：Molecular sieve, is uniformly distributed in the inside of filter house, with
And first between drainage screen and the second drainage screen.
In the technical scheme, molecular sieve is uniformly distributed between the first drainage screen and the second drainage screen, and multi-filtering was both
The service life of molecular sieve is improve, filter effect is can guarantee that again, and then ensure that the quality of product, lift Consumer's Experience.
According to any of the above-described technical scheme of the invention, it is preferable that the material of pipeline includes copper and/or aluminum.
In the technical scheme, pipeline is copper pipe, aluminum pipe or compo pipe.Wherein, copper pipe intensity is big, stable performance, no
Leakage is also easy to produce, and is difficult to produce the phenomenon of corrosion, more aluminum pipe low cost, economy.
According to any of the above-described technical scheme of the invention, it is preferable that molecular sieve includes the silicate and/or sial of crystalline state
Hydrochlorate.
In the technical scheme, the silicate and/or aluminosilicate of crystalline state are by silicon-oxy tetrahedron or aluminum-oxygen tetrahedron
It is connected by oxygen bridge key and forms duct and cavity system that molecular dimension is typically sized to 0.3~2nm, because of binding molecule size
It is different with shape and there is the ability of screening fluid molecule of different sizes, and then can more fully play the dry of molecular sieve
Dry effect.
A kind of technical scheme according to the third aspect of the invention we, it is proposed that refrigerator, including appoint in second aspect present invention
The reducing pressure by regulating flow device that one technical scheme is provided.
In the technical scheme, reducing pressure by regulating flow device is integral type structure, has reached filtration, the mesh of reducing pressure by regulating flow one
, improve the service life of reducing pressure by regulating flow pipeline, and then the reliability of refrigerator pipe-line system is ensure that, improve refrigerator
Service life.
The additional aspect and advantage of the present invention will become obvious in following description section, or by the practice of the present invention
Recognize.
Description of the drawings
Fig. 1 shows the pipeline structure schematic diagram of prior art；
Fig. 2 shows the schematic flow sheet of the processing method of reducing pressure by regulating flow pipeline according to an embodiment of the invention；
Fig. 3 shows the structural representation of reducing pressure by regulating flow device according to an embodiment of the invention.
102 connecting tubes, 104 filter houses, 106 second throttle pipes, 108 first segment flow tubes, 110 first drainage screens, 112 second
Drainage screen, 114 molecular sieves, 202 condensers, 204 filters, 206 capillary tubies.
Specific embodiment
It is below in conjunction with the accompanying drawings and concrete real in order to be more clearly understood that the above objects, features and advantages of the present invention
Apply mode to be further described in detail the present invention.It should be noted that in the case where not conflicting, the enforcement of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the present invention, but, the present invention may be used also
Implemented with being different from other modes described here using other, therefore, protection scope of the present invention is not limited to following public affairs
The restriction of the specific embodiment opened.
Reducing pressure by regulating flow pipeline according to an embodiment of the invention is specifically described with reference to Fig. 2 and Fig. 3.
As shown in Fig. 2 embodiment according to the first aspect of the invention, it is proposed that a kind of processing side of reducing pressure by regulating flow pipeline
Method, including：After connecting tube 102, filter house 104 and the first segment flow tube 108 being sequentially communicated is formed using integral forming process,
The second throttle pipe 106 between filter house 104 and first segment flow tube 108 is formed using stretched operation；Load in filter house 104
After screen modules and molecular sieve 114, screen modules are limited using necking operation and molecular sieve 114 drains into connecting tube 102, with
Complete the processing of reducing pressure by regulating flow pipeline.
The processing method of reducing pressure by regulating flow pipeline according to an embodiment of the invention, the reducing pressure by regulating flow pipeline for processing is one
Body formula structure, has reached filtration, the purpose of reducing pressure by regulating flow one, and then improves the service life of reducing pressure by regulating flow pipeline.Wherein,
The integral type material formed by integral forming process, Stability Analysis of Structures reliability can make the fluid long-time of High Temperature High Pressure effectively
Ground, without revealing, to user preferably experience is brought by pipeline, after integral type material forming, is formed by stretched operation
Second throttle pipe 106, the caliber size at the two ends of the second throttle pipe 106 is different, has reached the purpose of reducing pressure by regulating flow, finally, passes through
The opening of connecting tube 102 is fixed on screen modules between the throttle pipe 106 of filter house 104 and second, and molecular sieve 114 is inserted
In filter house 104 and between screen modules, then by the effectively fixed screen modules of necking operation and molecular sieve 114, energy
Enough desiccations for more fully playing molecular sieve 114, reach more preferable filtering flow effect, by such scheme, integral type
Reducing pressure by regulating flow pipeline is processed and assembles more convenient, and can eliminate the adverse effect that weld job brings, and improves the use of product
Life-span, and then improve user satisfaction.
Wherein it is preferred to, molecular sieve is generally the silicate and/or aluminosilicate of crystalline state, be by silicon-oxy tetrahedron or
Aluminum-oxygen tetrahedron is connected by oxygen bridge key and forms duct and cavity system that molecular dimension is typically sized to 0.3~2nm, because inhaling
Attached molecule size and shape is different and there is the ability of screening fluid molecule of different sizes, and then can more fully play
The desiccation of molecular sieve 114.
Preferably, the drainage screen in filter assemblies is respectively arranged in the import and export position of filter house, and multi-filtering was both improved
The service life of molecular sieve 114, can guarantee that filter effect again, and then ensure that the quality of product, user is more satisfied with.
Preferably, it is also possible to only arrange drainage screen in outlet side, entrance side is fixed by necking, is only carrying out one-way flow
In the case of, it is equally reached good filter effect.
According to the above embodiment of the present invention, it is preferable that also include：Enlarging operation is carried out to the open end of connecting tube 102.
In this embodiment, enlarging operation is carried out to the opening of connecting tube 102, for being connected with other parts, makes pipe
Road is reliable and stable with other parts to link together, it is to avoid fluid produces leakage because connector is unstable, needs user
Want Jing often to keep in repair to junction, to user bad experience is brought.
Wherein it is preferred to, the opening of connecting tube 102 is carried out after enlarging operation, in order to connect condenser, making pipeline
Reliable and stable with condenser links together, it is to avoid flows through the secondary refrigerant leakage of pipeline, and then improves the stability of system.
As shown in figure 3, embodiment according to the second aspect of the invention, it is proposed that a kind of reducing pressure by regulating flow device, including adopting
The reducing pressure by regulating flow pipeline processed with arbitrary technical scheme in such as first aspect present invention, the filter house of reducing pressure by regulating flow pipeline
Bore of 104 bore more than or equal to the connecting tube 102 of reducing pressure by regulating flow pipeline.
In this embodiment, the bore of filter house 104 is big, can accommodate more molecular sieve 114, and then has reached very well
Filter effect, improve product service life.
According to the above embodiment of the present invention, it is preferable that the scope of the bore in the first throttle portion of reducing pressure by regulating flow pipeline is 0.5
~2mm.
In this embodiment, by first throttle portion, the pressure differential that the presence at first throttle portion two ends can be kept certain,
The fluid flow by pipeline can be controlled simultaneously.
According to one embodiment of present invention, it is preferable that screen modules also include：First drainage screen 110, located at throttling
Connected region between second throttle pipe 106 of blood pressure lowering pipeline and filter house 104.
In this embodiment, fluid is after the filtration of molecular sieve 114, then enters second section through the first drainage screen 110
Flow tube 106, the fluid in the further filter pipeline of the first drainage screen 110, it is to avoid the fluid with impurity is under pipeline inflow
One part, causes pipe-line system failure, and then damages product, and to user bad experience is brought.
According to the above embodiment of the present invention, it is preferable that screen modules also include：Second drainage screen 112, located at connecting tube
Connected region between 102 and filter house 104.
In this embodiment, fluid is flowed into before filter house 104, is first passed around the second drainage screen 112 and is filtered, it is to avoid
Fluid with large granular impurity enters molecular sieve 114, improves the service life of molecular sieve 114, and then has reached preferably
Filter effect.
According to the above embodiment of the present invention, it is preferable that also include：Molecular sieve 114, is uniformly distributed in the interior of filter house 104
Between portion, and the first drainage screen 110 and the second drainage screen 112.
In this embodiment, molecular sieve 114 is uniformly distributed between the first drainage screen 110 and the second drainage screen 112, multiple
Filtration had both improve the service life of molecular sieve 114, can guarantee that filter effect again, and then ensure that the quality of product, made user
More it is satisfied with.
According to any of the above-described embodiment of the invention, it is preferable that the material of pipeline includes copper and/or aluminum.
In this embodiment, pipeline is copper pipe, aluminum pipe or compo pipe.Wherein, copper pipe intensity is big, and stable performance is difficult
Leakage is produced, and is difficult to produce the phenomenon of corrosion, more aluminum pipe low cost, economy.
According to any of the above-described embodiment of the invention, it is preferable that molecular sieve 114 includes the silicate and/or silicon of crystalline state
Aluminate.
In this embodiment, the silicate and/or aluminosilicate of crystalline state is led to by silicon-oxy tetrahedron or aluminum-oxygen tetrahedron
Peroxide bridged bond is connected and forms molecular dimension and be typically sized to duct and the cavity system of 0.3~2nm, because of binding molecule size and
Shape is different and there is the ability of screening fluid molecule of different sizes, and then can more fully play molecular sieve 114
Desiccation.
A kind of embodiment according to the third aspect of the invention we, it is proposed that refrigerator, including in second aspect present invention it is arbitrary
The reducing pressure by regulating flow device that embodiment is provided.
In this embodiment, reducing pressure by regulating flow device is integral type structure, has reached filtration, the purpose of reducing pressure by regulating flow one,
Improve the service life of reducing pressure by regulating flow pipeline, and then ensure that the reliability of refrigerator pipe-line system, improve refrigerator
Service life.
Technical scheme is had been described in detail above, the present invention proposes a kind of processing side of reducing pressure by regulating flow pipeline
Method, the reducing pressure by regulating flow pipeline for processing is integral type structure, has reached filtration, the purpose of reducing pressure by regulating flow one, and integral type
Reducing pressure by regulating flow pipeline is processed and assembles more convenient, and can eliminate the adverse effect that weld job brings, and improves the use of product
Life-span, and then improve user satisfaction.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of processing method of reducing pressure by regulating flow pipeline, it is characterised in that include：
In the connecting tube (102), filter house (104) and the first segment flow tube (108) that are sequentially communicated using integral forming process formation
Afterwards, the second throttle pipe (106) between the filter house (104) and the first segment flow tube (108) is formed using stretched operation；
Load in the filter house (104) after screen modules and molecular sieve (114), the filtration is limited using necking operation
Screen component and the molecular sieve (114) drain into the connecting tube (102), to complete the processing of the reducing pressure by regulating flow pipeline.
2. the processing method of reducing pressure by regulating flow pipeline according to claim 1, it is characterised in that also include：
Enlarging operation is carried out to the open end of the connecting tube (102).
3. a kind of reducing pressure by regulating flow device, including：Added using the processing method of reducing pressure by regulating flow pipeline as claimed in claim 1 or 2
The reducing pressure by regulating flow pipeline of work, it is characterised in that
Connecting tube of the bore of the filter house (104) of the reducing pressure by regulating flow pipeline more than or equal to the reducing pressure by regulating flow pipeline
(102) bore.
4. reducing pressure by regulating flow device according to claim 3, it is characterised in that
The scope of the bore in the first throttle portion of the reducing pressure by regulating flow pipeline is 0.5~2mm.
5. reducing pressure by regulating flow device according to claim 3, it is characterised in that the screen modules also include：
First drainage screen (110), located at the reducing pressure by regulating flow pipeline the second throttle pipe (106) and the filter house (104) it
Between connected region.
6. reducing pressure by regulating flow device according to claim 5, it is characterised in that the screen modules also include：
Second drainage screen (112), the connected region between the connecting tube (102) and the filter house (104).
7. reducing pressure by regulating flow device according to claim 6, it is characterised in that also include：
Molecular sieve (114), is uniformly distributed in the inside of the filter house (104), and first drainage screen (110) with it is described
Between second drainage screen (112).
8. the reducing pressure by regulating flow device according to any one of claim 3 to 7, it is characterised in that
The material of the pipeline includes copper and/or aluminum.
9. the reducing pressure by regulating flow device according to any one of claim 3 to 7, it is characterised in that
Silicate and/or aluminosilicate of the molecular sieve (114) including crystalline state.
10. a kind of refrigerator, it is characterised in that include：
Reducing pressure by regulating flow device any one of claim 3 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033184.5A CN106679248A (en) | 2017-01-18 | 2017-01-18 | Machining method of throttling pressure-reducing pipeline, throttling pressure-reducing device and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710033184.5A CN106679248A (en) | 2017-01-18 | 2017-01-18 | Machining method of throttling pressure-reducing pipeline, throttling pressure-reducing device and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106679248A true CN106679248A (en) | 2017-05-17 |
Family
ID=58860692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710033184.5A Pending CN106679248A (en) | 2017-01-18 | 2017-01-18 | Machining method of throttling pressure-reducing pipeline, throttling pressure-reducing device and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679248A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06235570A (en) * | 1993-02-10 | 1994-08-23 | Matsushita Refrig Co Ltd | Refrigating plant |
| JPH07103616A (en) * | 1993-10-12 | 1995-04-18 | Matsushita Refrig Co Ltd | Freezer and refrigerant compressor |
| CN2765114Y (en) * | 2004-11-17 | 2006-03-15 | 淳安千岛湖康盛制冷管路研究开发有限公司 | Welding seam free transition tube equipped between dry filter and capillary |
| CN202361717U (en) * | 2011-12-16 | 2012-08-01 | 苏州华越金属有限公司 | Multi-segment capillary tube for air conditioner |
| CN202835953U (en) * | 2012-08-28 | 2013-03-27 | 浙江绿宇制冷配件有限公司 | Integrated-type capillary connecting pipe |
| CN204254942U (en) * | 2014-11-28 | 2015-04-08 | 新昌县丰亿电器有限公司 | A kind of throttling distributor assembly |
| CN105299976A (en) * | 2014-07-21 | 2016-02-03 | 美的集团武汉制冷设备有限公司 | Filter and air conditioner with same |
-
2017
- 2017-01-18 CN CN201710033184.5A patent/CN106679248A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06235570A (en) * | 1993-02-10 | 1994-08-23 | Matsushita Refrig Co Ltd | Refrigating plant |
| JPH07103616A (en) * | 1993-10-12 | 1995-04-18 | Matsushita Refrig Co Ltd | Freezer and refrigerant compressor |
| CN2765114Y (en) * | 2004-11-17 | 2006-03-15 | 淳安千岛湖康盛制冷管路研究开发有限公司 | Welding seam free transition tube equipped between dry filter and capillary |
| CN202361717U (en) * | 2011-12-16 | 2012-08-01 | 苏州华越金属有限公司 | Multi-segment capillary tube for air conditioner |
| CN202835953U (en) * | 2012-08-28 | 2013-03-27 | 浙江绿宇制冷配件有限公司 | Integrated-type capillary connecting pipe |
| CN105299976A (en) * | 2014-07-21 | 2016-02-03 | 美的集团武汉制冷设备有限公司 | Filter and air conditioner with same |
| CN204254942U (en) * | 2014-11-28 | 2015-04-08 | 新昌县丰亿电器有限公司 | A kind of throttling distributor assembly |
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Application publication date: 20170517 |