CN109779931A - It is a kind of that the blower fan structure of ventilator compressed gas source is provided - Google Patents
It is a kind of that the blower fan structure of ventilator compressed gas source is provided Download PDFInfo
- Publication number
- CN109779931A CN109779931A CN201711111445.7A CN201711111445A CN109779931A CN 109779931 A CN109779931 A CN 109779931A CN 201711111445 A CN201711111445 A CN 201711111445A CN 109779931 A CN109779931 A CN 109779931A
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- CN
- China
- Prior art keywords
- spiral case
- impeller
- lower spiral
- magnet
- stator winding
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Abstract
The blower fan structure of ventilator compressed gas source, including upper volute, lower spiral case, impeller, stator winding are provided the present invention relates to a kind of, in the recessed portion that is centrally formed of the lower spiral case, the stator winding is fixed in the recessed portion at lower spiral case center；The impeller set is mounted in the stator winding periphery, at the middle part of the impeller, centered on the rotary shaft of impeller, peripherally disposed multiple boss, a vertical slot is formed between every two adjacent boss, one block of magnet is inlayed in each vertical slot, around the magnet and boss, setting one is for fixing the fixing sleeve made of electromagnetic pure iron of the magnet；The upper volute, lower spiral case mutually fasten and pass through screw connection, set air inlet and air outlet respectively on upper volute and lower spiral case.
Description
Technical field
The invention belongs to Medical Devices manufacturing technology fields, are related to a kind of blower fan structure of offer ventilator compressed gas source,
For in electric electricing breathing machine, providing the compressed air that can control pressure and flow velocity, with obtain treat needed for oxygen concentration and
The mixing gas of flow.
Background technique
It is (general usually using hospital's central gas supply system or compressed air gas cylinder in current electric electricing breathing machine
Output pressure is 270kPa~600kPa) clean air is provided, compressed air and compressed oxygen are made by electronic control system
It is obtained by mixing live gas in proportion.But if ventilator on ambulance or field in use, if in addition to ventilator sheet
Outside body, it is necessary to which carrying about standby air bottle, this just increases Item Weight, increases the burden of medical staff.In addition, current
In electric electricing breathing machine, there are also use gas source of the turbofan common in the market as compressed air.But
Since this blower fan volume is larger, biggish space is needed when installing in ventilator, will increase the volume of ventilator itself, with
It is expected that first-aid respirator is small in size, theory easy to carry and mobile is runed counter to.
Summary of the invention
The blower fan structure of ventilator compressed gas source is provided the purpose of the present invention is to provide a kind of, can solve above-mentioned ask
Topic, as the feedway of compressed air needed for electric electricing breathing machine, can directly suck air, without making from atmosphere
With central gas supply system or it is ready to compressed air gas cylinder.
Technical scheme is as follows:
It is a kind of that the blower fan structure of ventilator compressed gas source is provided, it is characterised in that: including upper volute, lower spiral case, impeller, to determine
Sub- winding, in the recessed portion that is centrally formed of the lower spiral case, the stator winding is fixed in the recessed portion at lower spiral case center；Institute
State impeller set mounted in the stator winding periphery, at the middle part of the impeller, centered on the rotary shaft of impeller, along the circumferential direction
Multiple boss are set, forms a vertical slot between every two adjacent boss, one block of magnet is inlayed in each vertical slot, in the magnetic
Around iron and boss, setting one is for fixing the fixing sleeve made of electromagnetic pure iron of the magnet；The upper volute, lower spiral case
Screw connection is mutually fastened and passed through, sets air inlet and air outlet respectively on upper volute and lower spiral case.
For the present invention due to being to be integrally formed the outer rotor of motor and impeller, turbofan structure is simpler, tight
It gathers, so that volume reduces, weight saving.
Detailed description of the invention
Fig. 1 is decomposition texture schematic diagram of the invention；
Fig. 2 is blade wheel structure schematic diagram of the invention；
Fig. 3 is surface structure schematic diagram of the invention.
Specific embodiment
As shown in Figure 1, the present invention includes upper volute 1, lower spiral case 2, impeller 3, stator winding 4, in the lower spiral case
It is formed centrally recessed portion, the stator winding 4 is fixed in the recessed portion at lower 2 center of spiral case；In a kind of specific implementation of the invention
In example, the stator is equipped with 12 teeth.The impeller set is mounted in the stator winding periphery.
As shown in Fig. 2, at the middle part of the impeller 3, it is peripherally disposed multiple centered on the rotary shaft 31 of impeller
Boss 32 forms a vertical slot between every two adjacent boss 32, one block of magnet 33 is inlayed in each vertical slot, in the magnet
33 and boss 32 around, setting one is for fixing fixing sleeve 34 made of electromagnetic pure iron of the magnet.
In a specific embodiment of the invention, 10 boss are equipped with, 9 vertical slots are formed by this 10 boss, it is perpendicular at 9
9 blocks of magnet are inlayed in slot altogether.The effect of the fixing sleeve is on the one hand each magnet can be securely fixed in above-mentioned vertical slot
It is interior, it on the other hand can conduct the magnetic line of force and generate magnetic field.
As shown in figure 3, the upper volute 1, lower spiral case 2 mutually fasten and by screw connections, on upper volute and lower spiral case
Air inlet 5 and air outlet 6 are set respectively.
The present invention is when it is implemented, be respectively formed annular groove on upper and lower volute in addition, in the upper and lower side of impeller
Annular groove is offered respectively, and there is blade in groove, in this way, when impeller and upper and lower volute to be installed together,
Gas flow channel is collectively formed in the groove on groove and upper and lower volute on impeller.
When the invention works, the leading-out terminal of stator winding is connected into DC power supply, stator coil is made to flow through electric current generation
Magnetic field, due to being evenly distributed 9 blocks of magnet around stator winding, the impeller with magnet under the influence of a magnetic field into
Row rotation.During wheel rotation, air is sucked from air inlet, and the gas formed between impeller and upper and lower volute is logical
Road flowing, while being compressed, pressure gradually rises, and finally flows out from gas outlet.The compressed air of outflow by attachment device into
Enter in ventilator gas circuit.Size by changing electric current can control the rotation speed of impeller, it is hereby achieved that different pressures
With the compressed gas of flow velocity, to meet pressure and flow needed for therapeutic process.Size of current can be according to pressure in ventilator
The data that sensor and flow sensor monitor, are changed using control circuit.
Claims (1)
1. a kind of provide the blower fan structure of ventilator compressed gas source, it is characterised in that: including upper volute, lower spiral case, impeller, stator
Winding, in the recessed portion that is centrally formed of the lower spiral case, the stator winding is fixed in the recessed portion at lower spiral case center；It is described
Impeller set, at the middle part of the impeller, centered on the rotary shaft of impeller, is along the circumferential direction set mounted in the stator winding periphery
Multiple boss are set, a vertical slot is formed between every two adjacent boss, one block of magnet is inlayed in each vertical slot, in the magnet
And around boss, setting one is for fixing the fixing sleeve made of electromagnetic pure iron of the magnet；The upper volute, lower spiral case phase
Screw connection is mutually fastened and passed through, sets air inlet and air outlet respectively on upper volute and lower spiral case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111445.7A CN109779931A (en) | 2017-11-12 | 2017-11-12 | It is a kind of that the blower fan structure of ventilator compressed gas source is provided |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711111445.7A CN109779931A (en) | 2017-11-12 | 2017-11-12 | It is a kind of that the blower fan structure of ventilator compressed gas source is provided |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109779931A true CN109779931A (en) | 2019-05-21 |
Family
ID=66485199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711111445.7A Pending CN109779931A (en) | 2017-11-12 | 2017-11-12 | It is a kind of that the blower fan structure of ventilator compressed gas source is provided |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779931A (en) |
-
2017
- 2017-11-12 CN CN201711111445.7A patent/CN109779931A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190521 |
|
| WD01 | Invention patent application deemed withdrawn after publication |