CN203783943U - Protective net for fans - Google Patents
Protective net for fans Download PDFInfo
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- CN203783943U CN203783943U CN201420220218.3U CN201420220218U CN203783943U CN 203783943 U CN203783943 U CN 203783943U CN 201420220218 U CN201420220218 U CN 201420220218U CN 203783943 U CN203783943 U CN 203783943U
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- protective net
- fan
- parts
- cover body
- net according
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Abstract
The utility model discloses a protective net for fans and in particular discloses a protective net for fans of air-cooled coolers. The protective net comprises cover bodies and installing parts, wherein the cover bodies are used for covering fan blades; the installing parts are used for installing the cover bodies on fan bodies; the cover bodies are made from plates; the plates are provided with a plurality of through holes for airflow circulation; the installing parts are fixedly connected with the cover bodies; the cover bodies comprise first parts and second parts; the first parts cover the fronts of the fan blades; the second parts cover the sides of the fan blades; the second parts are fixedly connected between the first parts and the installing parts. The protective net for fans has relatively high strength and relatively low cost.
Description
Technical field
the utility model relates to a kind of protective net for fan, especially a kind of protective net of the fan for air cooled chiller.
Background technique
plate and fin type air cooled chiller normally carries out forced-convection heat transfer by motor, direct current generator or engine-driving fan.In the time that fan passes through motor, direct current generator or engine-driving, on fan, need to arrange protective net, be used for preventing that worker from encountering the fan of High Rotation Speed and coming to harm.Especially for the product in outlet Europe and America, be all that mandatory requirement arranges protective net fan is protected.
in prior art, the protective net that cooler uses is generally the domestic fan cover of similar circle.The technique of moulding is also substantially similar, be all by by steel wire winding on shaping die, then the leg of protective net is linked together leg and protective net steel wire by the mode of electric welding.Protective net is generally fixed on the wind scooper of fan by multiple points (being generally eight) of surrounding, to prevent that staff from directly touching the fan in protective net.Said structure has following two shortcomings: be on the one hand drop into first larger, in the time that steel wire is coiled into circle, shaper must be set, in the time of the initial stage of development of product, have to drop into new die, if need after prototyping testing again to adjust, must correspondingly adjust shaper, will produce so larger die cost; After being product export on the other hand, because main frame is worked for a long time under high vibration, and the steel wire of protective net is to be connected by the mode of spot welding with leg, after work a period of time, there will be sealing-off, serious even can make protective net and fan are interfered, and fan, cooler are broken, and cause huge loss.
Summary of the invention
for the problems referred to above, the purpose of this utility model is to provide a kind of protective net for fan, and it has higher intensity and lower cost.
for solving the problems of the technologies described above, the utility model adopts following technological scheme:
a kind of protective net for fan, described fan has fan body and is installed on the flabellum on described fan body, described protective net comprises cover body for described flabellum is covered and for described cover body is installed on to the assembly department on described fan body, described cover body is made up of sheet material, on described sheet material, offer multiple through holes for airflow, described assembly department is fixedly connected on described cover body.
preferably, described cover body comprises second that covers at the First in described flabellum front and cover at described flabellum side, and described second is fixedly connected between described First and described assembly department.
more preferably, the section of described second is circular arc.
further, offer multiple slotted holes on described second, the long axis direction of described slotted hole parallels with the circumferencial direction of described second.
preferably, the thickness of described cover body is 2 millimeters.
preferably, described sheet material is pressed plate.
preferably, described through hole is slotted hole.
preferably, on described assembly department, offer multiple screw holes for passing so that described protective housing and fan body are fixed for screw.
the utility model adopts above structure, tool has the following advantages: use the sheet material with through hole to replace steel wire of the prior art to make protective housing, with replacing being connected between steel wire and steel wire being connected between sheet material and sheet material, do not affect the permeability of wind and to the protective of fan in, greatly improved the intensity of protective housing and reduced the research and development of products such as die cost in product early stage and dropped into.
Brief description of the drawings
accompanying drawing 1 is stereogram of the present utility model;
accompanying drawing 2 is plan view of the present utility model;
accompanying drawing 3 is the utility model side views.
wherein, 1, First; 2, second; 3, assembly department; 4, through hole; 5, screw hole.
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be those skilled in the art will recognize that, protection domain of the present utility model is made to more explicit defining.
in prior art, the fan of air cooled chiller conventionally has fan body and is installed on the flabellum on described fan body, and the present embodiment provides a kind of Novel protective cover that plays protective action on flabellum that is located at.
in conjunction with shown in Fig. 1 to Fig. 3, a kind of protective net for fan, described protective net is made up of four protective net unit, each described protective net unit comprises cover body for described flabellum is covered and for described cover body being installed on to the assembly department 3 on described fan body, between four protective net unit, there is certain intervals, and four protective nets are arranged in a circle substantially for flabellum is covered, described cover body is made up of pressed plates such as the thick steel plates of 2mm, on described pressed plate, offer multiple through holes 4 for airflow, described assembly department 3 is fixedly connected on described cover body.
described through hole 4 is slotted hole, and slotted hole is multiple and is arranged in equably on cover body.
particularly, described cover body comprises second 2 that covers at the First 1 in described flabellum front and cover at described flabellum side, and described second 2 is fixedly connected between described First 1 and described assembly department 3.
first 1, second 2 and assembly department 3 are made by steel plate, First 1 and second 2 welding mutually, weld mutually with assembly department 3 for second 2.
wherein, First 1 is pressed into the positive shape requiring of protective net by the thick steel plate stamping of 2mm, then goes out slotted hole on whole plate, ensures that the existing some strength of First 1 of cover body can not be out of shape, and has again enough vent areas.
the section of described second 2 is circular arc, and the long axis direction of the slotted hole on described second 2 parallels with the circumferencial direction of described second 2.First gone out after flat board by steel plate, go out slotted hole, then flat board is rolled into circular arc plate with spheronizator.
on described assembly department 3, offer multiple screw holes 5 for passing so that described protective housing and fan body are fixed for screw, protective net when mounted, is passed successively screw hole 5 and is inserted in fan body by screw, and protective net is installed on fan.Assembly department 3 is gone out flat board by steel plate, and dull and stereotyped shape and the circular arc of second 2 match, then on flat board, offer multiple screw holes 5.
this protective net, in working process, does not need to drop into shaping die, and experimental stage need to be tested multiple protective net in the early stage, do not need a large amount of mould expenses of overlapping investment, only in the time of batch production, consider and manufacturing efficiency suitably increase positioning fixture for welding, the expense that entirety drops into is very low; Steel wire protective net by the intensity of the protective net of Plate Welding moulding in compared to existing technology improves a lot, and does not have sealing-off risk, can not cause fan and cooler damage; Protective net of the present utility model had both improved intensity, had also reduced product development cost simultaneously.
above-described embodiment is only explanation technical conceive of the present utility model and feature; it is a kind of preferred embodiment; its object is that person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to Spirit Essence of the present utility model or modification, within all should being encompassed in protection domain of the present utility model.
Claims (8)
1. the protective net for fan, described fan has fan body and is installed on the flabellum on described fan body, it is characterized in that: described protective net comprises cover body for described flabellum is covered and for described cover body is installed on to the assembly department on described fan body, described cover body is made up of sheet material, on described sheet material, offer multiple through holes for airflow, described assembly department is fixedly connected on described cover body.
2. protective net according to claim 1, is characterized in that: described cover body comprises second that covers at the First in described flabellum front and cover at described flabellum side, and described second is fixedly connected between described First and described assembly department.
3. protective net according to claim 2, is characterized in that: the section of described second is circular arc.
4. protective net according to claim 3, is characterized in that: on described second, offer multiple slotted holes, the long axis direction of described slotted hole parallels with the circumferencial direction of described second.
5. protective net according to claim 1, is characterized in that: the thickness of described cover body is 2 millimeters.
6. protective net according to claim 1, is characterized in that: described sheet material is pressed plate.
7. protective net according to claim 1, is characterized in that: described through hole is slotted hole.
8. protective net according to claim 1, is characterized in that: on described assembly department, offer multiple screw holes for passing so that described protective housing and fan body are fixed for screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220218.3U CN203783943U (en) | 2014-04-30 | 2014-04-30 | Protective net for fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220218.3U CN203783943U (en) | 2014-04-30 | 2014-04-30 | Protective net for fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203783943U true CN203783943U (en) | 2014-08-20 |
Family
ID=51320135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420220218.3U Active CN203783943U (en) | 2014-04-30 | 2014-04-30 | Protective net for fans |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203783943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416046A (en) * | 2016-07-07 | 2019-03-01 | 风扇构造者株式会社 | The preceding safety net of fan with favorable compatibility |
-
2014
- 2014-04-30 CN CN201420220218.3U patent/CN203783943U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416046A (en) * | 2016-07-07 | 2019-03-01 | 风扇构造者株式会社 | The preceding safety net of fan with favorable compatibility |
| CN109416046B (en) * | 2016-07-07 | 2020-08-18 | 风扇构造者株式会社 | Front safety net of fan with good compatibility |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |