CN201368041Y - AC axial-flow fan arranged in power converter - Google Patents
AC axial-flow fan arranged in power converter Download PDFInfo
- Publication number
- CN201368041Y CN201368041Y CNU200920067222XU CN200920067222U CN201368041Y CN 201368041 Y CN201368041 Y CN 201368041Y CN U200920067222X U CNU200920067222X U CN U200920067222XU CN 200920067222 U CN200920067222 U CN 200920067222U CN 201368041 Y CN201368041 Y CN 201368041Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- brushless motor
- axial
- motor
- changeover device
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides an AC axial-flow fan arranged in a power converter, which comprises a brushless DC motor, a stator core arranged outside the brushless DC motor, an impeller connected with the stator core and an outer frame arranged outside the impeller. The input end of the power converter is connected with an external AC power supply, and the output end thereof is connected with the brushless DC motor; and the power converter is arranged in the brushless DC motor so as to convert AC power supply into DC power supply of which the parameter is matched with that of the brushless DC motor.
Description
Technical field
The utility model relates to axial-flow blower, relates in particular to a kind of interchange axial-flow blower.
Background technique
Axial-flow blower is used for needs and ventilates and each occasion of cooling off, comprises every field such as PC, electric equipment and factory installation.
Axial-flow blower generally includes direct current or AC motor, and the impeller with a plurality of blades, these blades are clocklike around the hub member setting; Rotor; Stator iron core and housing, protective housing etc.When impeller during by the motor driving of blower fan, the air pressure by blade lowers, and causes producing air and moves to blower fan continuously.Then, fan blade rising pressure promotes the rear of air from blower fan laterally, and the air that moves produces air-flow, and this air-flow plays and ventilates and cooling action.
Axial-flow blower on the market is greatly slightly two kinds now: a kind of is to exchange axial fan, and its principle is the input AC electricity, and motor section is divided into an AC motor, is characterized in: the ac power supply input is convenient; But efficient is low.Another is the direct current axial fan, and its principle is an input dc power, and motor partly is a direct current brushless electric machine, is characterized in that power is big; But DC electrical source is not general.
Therefore, exist a kind of demand in the industry: it is big and use the axial-flow blower of two advantages of ac power supply to develop a kind of efficient that collects simultaneously.
The model utility content
The utility model provides a kind of power supply changeover device built-in interchange axial-flow blower, and its technological scheme that adopts is as follows:
The interchange axial-flow blower that a kind of power supply changeover device is built-in, comprise dc brushless motor, be arranged on the outer stator iron core of dc brushless motor, the impeller that links to each other with stator iron core is arranged at the housing of impeller outer, it is characterized in that, be provided with power supply changeover device in the dc brushless motor, the power supply changeover device input end is connected with outside ac power supply, and output terminal is connected with dc brushless motor, and ac power supply is converted to the DC electrical source that the parameter with dc brushless motor is complementary.
The utility model has the advantages that:
1. compact structure;
2. efficient height;
3. use ac power supply.
Description of drawings
Below in conjunction with accompanying drawing,, will make the technical solution of the utility model and other beneficial effects apparent by detailed description to embodiment of the present utility model.
Fig. 1 is the utility model schematic representation;
Fig. 2 is one of them embodiment's of being connected with the dc brushless motor internal circuit board of the utility model power supply changeover device a schematic representation;
Fig. 3 is another embodiment's of being connected with the dc brushless motor internal circuit board of the utility model power supply changeover device a schematic representation.
Embodiment
In order further to understand feature of the present utility model, see also following about detailed description of the present utility model and accompanying drawing, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for protection domain of the present utility model is limited.
As shown in Figure 1, be product diagram of the present utility model.Axial-flow blower of the present utility model comprises: direct current generator 101, be arranged on the stator iron core 102 outside the dc brushless motor 101, the impeller 103 that links to each other with stator iron core, be arranged at the housing 104 of impeller outer, be positioned at the power supply changeover device 105 of dc brushless motor 101, power supply changeover device 105 input ends are connected with the ac power supply of outside, and output terminal is connected with dc brushless motor 101, it is converted to the Ac of being imported drives the direct current that dc brushless motor 101 rotates.Through stator iron core 102, the rotation impeller 103 of dc brushless motor 101 is rotated, and plays the effect of ventilating with cooling.
Fig. 2 is one of them embodiment's of being connected with the internal circuit board of dc brushless motor 101 of the utility model power supply changeover device a circuit diagram.Present embodiment adopts the 85V-264V Ac.Mains supply 201 enters power supply changeover device 105, through EMI circuit 202, rectifying and wave-filtering 203, Power Conversion 204, rectifying and wave-filtering 205, by output module 206 output DCs, drives dc brushless motor 101 work.Sampling module 208 connects direct current output modules 206, and the magnitude of voltage of current output DC is offered mu balanced circuit 209, adjusts Power Conversions 204 by PWM controller 210, guarantees that the dc voltage value of being exported is constant.Because of adopting general Ac is working power, and be converted to 101 runnings of dc powered dc brushless motor by power supply changeover device 105, therefore, both possessed the advantage of dc fan low-power, big air quantity and big static blast, also possessed the advantage that the AC blower fan power supply is popularized.
Fig. 3 is another embodiment's of being connected with dc brushless motor 101 internal circuit boards of the utility model power supply changeover device 105 a circuit diagram.Present embodiment adopts the Ac of fixed voltage value.Mains supply 301 enters power supply changeover device 105, through capacitance decompression module 302, rectifying and wave-filtering 303, by output module 304 output DCs, drives dc brushless motor 101 work.Because of adopting general Ac is working power, and be converted to 101 runnings of dc powered dc brushless motor by power supply changeover device 105, therefore, both possessed the advantage of dc fan low-power, big air quantity and big static blast, also possessed the advantage that the AC blower fan power supply is popularized.
Should be understood that; above-mentioned detailed description to embodiment is only in order to understand the utility model; for those of ordinary skills; can be improved according to the above description or conversion, so long as reach all improvement of this purpose and the protection domain that conversion all should belong to the utility model claims.
Claims (1)
1. interchange axial-flow blower that power supply changeover device is built-in, comprise dc brushless motor, be arranged on the outer stator iron core of this dc brushless motor, the impeller that links to each other with this stator iron core, be arranged at the housing of this impeller outer, it is characterized in that, also comprise: be provided with power supply changeover device in this dc brushless motor, this power supply changeover device input end is connected with the ac power supply of outside, output terminal is connected with this dc brushless motor, and this ac power supply is converted to the DC electrical source that the parameter with this dc brushless motor is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920067222XU CN201368041Y (en) | 2009-01-21 | 2009-01-21 | AC axial-flow fan arranged in power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920067222XU CN201368041Y (en) | 2009-01-21 | 2009-01-21 | AC axial-flow fan arranged in power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368041Y true CN201368041Y (en) | 2009-12-23 |
Family
ID=41486934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920067222XU Expired - Lifetime CN201368041Y (en) | 2009-01-21 | 2009-01-21 | AC axial-flow fan arranged in power converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368041Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896949A (en) * | 2016-06-15 | 2016-08-24 | 苏州新区百利电子有限公司 | Small-size wide-voltage AC/DC universal axial-flow fan and power supply control method thereof |
-
2009
- 2009-01-21 CN CNU200920067222XU patent/CN201368041Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105896949A (en) * | 2016-06-15 | 2016-08-24 | 苏州新区百利电子有限公司 | Small-size wide-voltage AC/DC universal axial-flow fan and power supply control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091223 |