CN204239334U - A kind of fan casing - Google Patents
A kind of fan casing Download PDFInfo
- Publication number
- CN204239334U CN204239334U CN201420714552.4U CN201420714552U CN204239334U CN 204239334 U CN204239334 U CN 204239334U CN 201420714552 U CN201420714552 U CN 201420714552U CN 204239334 U CN204239334 U CN 204239334U
- Authority
- CN
- China
- Prior art keywords
- back side
- side panel
- annular
- groove
- guide channel
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of blower fan field of engineering technology, a kind of fan casing specifically, comprise front side plate, back side panel and connecting plate, front side plate is connected with back side panel by connecting plate, back side panel is provided with axis hole, it is characterized in that this casing back side panel is provided with and the interior annular groove of axis hole coaxial line and the outer groove of annular, interior annular groove is connected by wind-guiding groove with the outer groove of annular, the diameter of the outer groove of described annular equals draught fan impeller diameter, described air guide channel is curved, the radian direction of air guide channel is along vane rotary direction, air guide channel annular distribution is between interior annular groove and the outer groove of annular, during assembling, after the cooling of solder joint place, back side panel is shunk, casing back side panel inside is subject to outside stress, groove is stretched, eliminate the contraction deformation of welding and bringing, and then reduce the deformation of casing back side panel, there is the contraction deformation can eliminated and weld and bring, ensure blower fan assembly precision, promote air flowing in blower fan, make simple, the advantages such as easy operation.
Description
Technical field
The utility model relates to a kind of blower fan field of engineering technology, and a kind of contraction deformation can eliminated welding and bring, ensures a kind of fan casing of blower fan assembly precision specifically.
Background technique
Fan casing is made up of front side plate, back side panel and connecting plate usually, and in the field of engineering technology of blower fan, general is carried out PWHT of stress relieving to impeller rotary member or blower, compressor etc., does not carry out eliminating stress measure after fan casing welding.At present, after conventional fan casing is processed by one block of material all in one piece by front side plate, by welding mode and connecting plate assemble, because welding process produces a large amount of heat, make back side panel contraction deformation after cooling, thus there is concave surface or convex surface in back side panel, make that original casing back side panel size diminishes, surface irregularity, correct very difficult, thus affect the assembly precision of blower fan.
Summary of the invention
In order to overcome the defect existed in prior art, the present invention aims to provide a kind of contraction deformation can eliminated welding and bring, thus ensures the fan casing of blower fan assembly precision.
For achieving the above object, the technological scheme that the utility model provides is:
A kind of fan casing, comprise front side plate, back side panel and connecting plate, front side plate is connected with back side panel by connecting plate, back side panel is provided with axis hole, it is characterized in that this casing back side panel is provided with and the interior annular groove of axis hole coaxial line and the outer groove of annular, interior annular groove is connected by wind-guiding groove with the outer groove of annular.
The outer groove diameter of annular described in the utility model equals draught fan impeller diameter, to increase gas flow in blower fan.
Air guide channel described in the utility model is curved, the radian direction of air guide channel is along vane rotary direction, air guide channel annular distribution is between interior annular groove and the outer groove of annular, in promotion blower fan while gas flow, the outer groove of interior annular groove and annular is connected, ensure that the structural strength of back side panel.
The utility model is when assembling, after the cooling of solder joint place, back side panel is shunk, casing back side panel inside is subject to outside stress, groove is stretched, eliminate the contraction deformation of welding and bringing, eliminate welding interior stress, and then reduce the deformation of casing back side panel, the utility model has the contraction deformation can eliminated and weld and bring, the advantage such as air flowing, simple, the easy operation of making in guarantee blower fan assembly precision, promotion blower fan.
Accompanying drawing explanation
Fig. 1 stereogram of the present utility model;
Fig. 2 Facad structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated:
A kind of fan casing, comprise front side plate, back side panel 1 and connecting plate 2, front side plate is connected with back side panel 1 by connecting plate 2, back side panel 1 is provided with axis hole 3, the structure of above-mentioned each constituent element and the interconnected relationship between them same as the prior art, this does not repeat, of the present utility modelly be characterised in that this back side panel 1 is provided with and the outer groove 4 of the interior annular groove 5 of axis hole 3 coaxial line and annular, interior annular groove 5 is connected by wind-guiding groove 6 with the outer groove 4 of annular, wind-guiding groove 6 many with three, be preferably between four to six, interior annular groove 5 and annular outward groove 4 and air guide channel 6 generally adopt specialized mould compressing, the diameter of the outer groove 4 of described annular equals draught fan impeller diameter, to increase gas flow in blower fan, described air guide channel 6 is curved, the radian direction of air guide channel 6 is along vane rotary direction, air guide channel 6 annular distribution is between the outer groove of interior annular groove 5 and annular 6, in promotion blower fan while gas flow, the outer groove 4 of interior annular groove 5 and annular is connected, ensure that the structural strength of back side panel.
In welding process, after the cooling of solder joint place, back side panel 1 is shunk, back side panel 1 inside is subject to outside stress, groove is stretched, and eliminates the contraction deformation of welding and bringing, eliminates welding interior stress, and then reduce the deformation of casing back side panel, compared with prior art, the utility model has the contraction deformation can eliminated and weld and bring, the advantage such as air flowing, simple, the easy operation of making in guarantee blower fan assembly precision, promotion blower fan.
Claims (3)
1. a fan casing, comprise front side plate, back side panel and connecting plate, front side plate is connected with back side panel by connecting plate, back side panel is provided with axis hole, it is characterized in that this casing back side panel is provided with and the interior annular groove of axis hole coaxial line and the outer groove of annular, interior annular groove is connected by wind-guiding groove with the outer groove of annular.
2. a kind of fan casing according to claim 1, is characterized in that the diameter of the outer groove of described annular equals draught fan impeller diameter.
3. a kind of fan casing according to claim 1, is characterized in that air guide channel is curved, and the radian direction of air guide channel is along vane rotary direction, and air guide channel annular distribution is between interior annular groove and the outer groove of annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420714552.4U CN204239334U (en) | 2014-11-25 | 2014-11-25 | A kind of fan casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420714552.4U CN204239334U (en) | 2014-11-25 | 2014-11-25 | A kind of fan casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239334U true CN204239334U (en) | 2015-04-01 |
Family
ID=52768836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420714552.4U Active CN204239334U (en) | 2014-11-25 | 2014-11-25 | A kind of fan casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588043A (en) * | 2017-10-20 | 2018-01-16 | 东风博泽汽车***有限公司 | A kind of electric motor fan radiating hub structure and its cooling fan formed |
-
2014
- 2014-11-25 CN CN201420714552.4U patent/CN204239334U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588043A (en) * | 2017-10-20 | 2018-01-16 | 东风博泽汽车***有限公司 | A kind of electric motor fan radiating hub structure and its cooling fan formed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104564452A (en) | Automobile engine intake pipe and integrated manufacturing process thereof | |
| CN102564103B (en) | Novel exhaust system | |
| CN204239334U (en) | A kind of fan casing | |
| CN104214008A (en) | Novel tail cone | |
| CN204942838U (en) | A kind of pipeline flexible connection structure | |
| CN204247914U (en) | A kind of bend pipe casting mould | |
| CN203132220U (en) | Collecting tube improving structure of condenser | |
| CN205714938U (en) | Multistage turbine vacuum pump impeller | |
| CN204006845U (en) | Filter and air-conditioning system | |
| CN209622289U (en) | A kind of pressure-pipe type plastic composite pipe jointing | |
| CN112634853A (en) | Nonmetal wedge array silencer | |
| CN204987955U (en) | Titanium pipe heat exchanger structures | |
| CN105364435A (en) | Sealing method of heat pipe and finished product of sealing method | |
| CN204553331U (en) | A kind of air-conditioner wind flabellum | |
| CN205736768U (en) | A kind of condenser brackets and the attachment structure of pipeline | |
| CN204664671U (en) | A kind of rapid abutting joint pipe | |
| CN205842022U (en) | The non-solder structure of hard pipe joint | |
| CN205592536U (en) | Can rise no flange joint tuber pipe that contracts | |
| CN205001089U (en) | Intake pipe and support assembly structure of admitting air | |
| CN204941826U (en) | A kind of environment-friendly and energy-efficient oilless air compressor valve plate | |
| CN204693469U (en) | A kind of full pre-mix module furnace gases spoiler | |
| CN204114379U (en) | Improve the structure of the nylon turbosupercharging pipeline of vibration friction welding weld strength | |
| CN204307797U (en) | A kind of impregnation finished paper heat sink | |
| CN204572563U (en) | A kind of spiral case of range hood | |
| CN203641742U (en) | Welding-free coaxial tube interface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181025 Address after: 264200 room 604, No. 35, District 1, Xindu District, Huancui, Weihai, Shandong Patentee after: Yu Ruisheng Address before: 264207 Zhangjia Tan Village, Zhangshan village, Gushan Town, Weihai, Shandong Patentee before: WEIHAI LITONG GENERAL MACHINERY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190111 Address after: 264200 Room 806, Block D, 101 Shanghai Road, Xiyuan Street, Weihai Economic and Technological Development Zone, Shandong Province Patentee after: WEIHAI ALEX ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 264200 room 604, No. 35, District 1, Xindu District, Huancui, Weihai, Shandong Patentee before: Yu Ruisheng |
|
| TR01 | Transfer of patent right |