CN204003330U - The high-pressure portable air compressor of driven by Brush-Less DC motor - Google Patents
The high-pressure portable air compressor of driven by Brush-Less DC motor Download PDFInfo
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- CN204003330U CN204003330U CN201420291559.XU CN201420291559U CN204003330U CN 204003330 U CN204003330 U CN 204003330U CN 201420291559 U CN201420291559 U CN 201420291559U CN 204003330 U CN204003330 U CN 204003330U
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- motor
- air compressor
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- brush
- driven
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Abstract
The utility model discloses the Portable air compressor of driven by Brush-Less DC motor, it relates to air Compressor unit technical field, it comprises DC brushless motor, PI controls, input torque, output torque, back-emf, Hall element, speed feedback, two ports of DC brushless motor are connected with output torque with input torque respectively, be provided with back-emf and Hall element therebetween, speed feedback is connected with DC brushless motor, PI controls and is connected with motor, be placed on smooth level land and move, the phenomenon that can not be moved, the fluctuation of speed of the air compressor of driven by Brush-Less DC motor is less, efficiency is higher, therefore have more superiority.
Description
Technical field:
The utility model relates to the high-pressure portable air compressor of driven by Brush-Less DC motor, belongs to air compressor technical field.
Background technique:
Conventional air compressor is all to adopt belt pulley to drive, and at motor, drives in the process of air compressor, and the noise that belt pulley produces is very large, and belt pulley is after long-time use, easily produces the phenomenon of wearing and tearing.Once belt pulley damages, change pretty troublesome, the work of air compressor will have to interrupt, and the opposed type compressor operation of driven by Brush-Less DC motor is quite steady, noise and vibration all meet the requirements, and are placed on smooth level land and move, the phenomenon that can not be moved, the fluctuation of speed of the air compressor of driven by Brush-Less DC motor is less, and efficiency is higher, therefore has more superiority.
Model utility content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide the high-pressure portable air compressor of driven by Brush-Less DC motor.
The high-pressure portable air compressor of driven by Brush-Less DC motor of the present utility model, it comprises DC brushless motor, PI control, input torque, output torque, back-emf, Hall element, speed feedback, two ports of DC brushless motor are connected with output torque with input torque respectively, be provided with back-emf and Hall element therebetween, speed feedback is connected with DC brushless motor, and PI controls and is connected with motor.
The beneficial effects of the utility model: it can overcome the drawback of prior art, reduce noise and vibration, are placed on smooth level land and move, the phenomenon that can not be moved.
Accompanying drawing explanation:
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is the utility model working principle schematic diagram.
Embodiment:
As shown in Figure 1, this embodiment is by the following technical solutions: it comprises DC brushless motor, PI control, input torque, output torque, back-emf, Hall element, speed feedback, two ports of DC brushless motor are connected with output torque with input torque respectively, be provided with back-emf and Hall element therebetween, speed feedback is connected with DC brushless motor, and PI controls and is connected with motor.
The working principle of this embodiment is: the loading moment of compressor can be by the module self realization of programming. in order to ensure motor smooth running, motor speed adopts PI to control, and when selecting PI parameter, take into full account the fast-changing feature of loading moment of compressor, under the identical condition of compressor operation parameters, the fluctuation of speed to dynamic formula air compressor is much bigger, motor is done reduction of speed motion, the fluctuation of loading moment is larger, the fluctuation of speed of motor is also larger, the fluctuation of speed is large, not only can cause vibration and noise, also can reduce electric efficiency. clearly, motor speed reduction can cause the counterelectromotive force of motor also to decrease, and the busbar voltage of motor is certain, the resistance of motor winding and inductance are also that substantially constant counterelectromotive force reduction can cause phase current to increase, and then output torque also increases, with balanced load moment, guarantee that motor speed can not decline continuously and healthily, due to the peak value much larger than opposed type air compressor loading moment to the peak value of dynamic formula air compressor loading moment, the fluctuation of rotating speed is also much bigger, the more important thing is, the phase current peak value of motor also becomes very large, because electric current is large, the corresponding increasing of the copper loss of motor and iron loss, electric efficiency reduces, the electric machine phase current of opposed type air compressor is much smaller, therefore efficiency is higher.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. the Portable air compressor of a driven by Brush-Less DC motor, it is characterized in that: it comprises DC brushless motor, PI control, input torque, output torque, back-emf, Hall element, speed feedback, two ports of DC brushless motor are connected with output torque with input torque respectively, be provided with back-emf and Hall element therebetween, speed feedback is connected with DC brushless motor, and PI controls and is connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291559.XU CN204003330U (en) | 2014-06-03 | 2014-06-03 | The high-pressure portable air compressor of driven by Brush-Less DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291559.XU CN204003330U (en) | 2014-06-03 | 2014-06-03 | The high-pressure portable air compressor of driven by Brush-Less DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003330U true CN204003330U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420291559.XU Expired - Fee Related CN204003330U (en) | 2014-06-03 | 2014-06-03 | The high-pressure portable air compressor of driven by Brush-Less DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840455A (en) * | 2016-06-12 | 2016-08-10 | 东莞瑞柯电子科技股份有限公司 | High-efficiency inflating pump |
-
2014
- 2014-06-03 CN CN201420291559.XU patent/CN204003330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840455A (en) * | 2016-06-12 | 2016-08-10 | 东莞瑞柯电子科技股份有限公司 | High-efficiency inflating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150603 |
|
| EXPY | Termination of patent right or utility model |