CN100420856C

CN100420856C - Water pump

Info

Publication number: CN100420856C
Application number: CNB2004100898514A
Authority: CN
Inventors: 陈厚助; 陈文川; 翁嘉庆
Original assignee: Delta Optoelectronics Inc
Current assignee: Delta Electronics Inc; Delta Optoelectronics Inc
Priority date: 2004-10-26
Filing date: 2004-10-26
Publication date: 2008-09-24
Anticipated expiration: 2024-10-26
Also published as: CN1766343A

Abstract

The present invention relates to a water pump comprising a casing, a base, a rotor, etc., wherein a yoke iron coated in a magnetic extension part of the rotor can increase the efficiency of the water pump under the condition that the volume of the water pump is not added; simultaneously, the water pump of the present invention also provides a first magnet and a second magnet which are respectively arranged insides the rotor and the casing; mutual generation magnetic force can be used for limiting the rotor to rotate on a preset position so that the service life of the water pump is improved.

Description

Water pump

Technical field

The relevant a kind of water pump of the present invention, particularly a kind of water pump that under the situation that does not increase its volume, can strengthen its usefulness.

Background technique

Water pump generally is to be used for drawing water, makes water move to high level by water pump from the low level place, so water pump application in daily life is very extensive; For example in general building water tower, can utilize water pump that the water of lower is drawn in the water tower of roof, make the building user use water by gravitational effect; If when for example running into the basement waterflooding again, can also utilize water pump, the water of its alluvial is extracted; As seen, water pump and people's life is closely bound up really.

The application mode of another kind of water pump, be in a kind of electronic product that possesses constituent, electronic product is for example in the computer, some assembly therein can produce heat because of long-term use, if the heat of alluvial is too many, may make component faults, general prior art can be utilized a fan, reaches the purpose of heat radiation, but does not reach the radiating effect of expection sometimes; So prior art is developed a kind of water pump that utilizes again and formed a water cycle, make the water of the assembly of flowing through take away the heat that assembly produces, to reach the purpose of heat radiation; Wherein, a kind of existing water pump please refer to Fig. 1, and the water pump 1 shown in the figure has a water intake 11 and a water outlet 12, when water pump 1 running, promptly can produce a differential water pressures, makes water be forced to enter in the water pump 1 from water intake 11, and leaves water pump 1 from water outlet 12; In order further to explain the function mode of water pump 1, please be simultaneously with reference to Fig. 2 A and Fig. 2 B, by shown in the figure as can be seen, a water pump 1 includes a housing 10, a pedestal 16 and a rotor 15 etc.; Wherein, comprise a water intake 11 and a water outlet 12 on the housing 10; Pedestal 16 is to be positioned at

housing

10, and 15 of rotors are to be coupling on pedestal 16 by a rotating shaft 17, and rotating shaft 17 can be fixed on the rotating shaft fixed hole 166 of pedestal 16, and the rotary shaft hole 156 with rotor 15 is socketed in the rotating shaft 17 again; Or can also earlier rotating shaft 17 be fixed on the rotary shaft hole 156 of rotor 15, again rotating shaft 17 is socketed on the pedestal 16, rotor 15 is rotated with respect to pedestal 16; In addition, one coil 18 is provided with around the rotating shaft 17 of pedestal 16, rotor is made of a blade 154 and a magnetic extension part 152, in addition, also comprise an annular gasket 19 in the housing 10 of water pump 1, between rotor 15 and housing 10, and be socketed in the rotating shaft 17, usually annular gasket 19 is made by tool wear resistance Ceramic metal, is used for the activity of restrict rotor 15 along rotating shaft 17; So, after coil 18 passes through electric current, produce a magnetic field, after magnetic extension part 152 is experienced magnetic field, be rotated, then directly driving blade 154 rotates, and then cause differential water pressures between water intake 11 and the water outlet 12, and water can be driven by water pump 1 produce current, reach the purpose of drawing water.

But, when above-mentioned water pump 1 is applied in the electronic product, volume need be limited usually, under this requires, assemblies such as the magnetic extension part of the rotor in the water pump and coil then must dwindle, the usefulness of drawing water of its water pump then can directly be restricted, and directly feasible application with constituent of water pump is restricted.

Summary of the invention

The purpose of this invention is to provide a kind of water pump, can under the configuration state that does not change its volume and assembly, promote the torque of its rotor, and then promote rotor speed, the whole efficiency of water pump is improved.

According to water pump of the present invention, it comprises: a housing; One pedestal is positioned at housing, in order to carry a coil; And a rotor, be coupling in pedestal by a rotating shaft, rotor can be rotated with respect to pedestal, wherein, rotor comprises a blade and a magnetic extension part, and magnetic extension part wound coil is provided with, and the inside of magnetic extension part includes a yoke; Wherein, coil is to be provided with around the position in this axle center of connection of pedestal.

According to above-mentioned conception, rotating shaft is fixed on the pedestal, and the rotary shaft hole with rotor is socketed in the rotating shaft again, and rotor can be rotated with respect to pedestal.

According to above-mentioned conception, rotating shaft is fixed on the rotor, rotating shaft is socketed on the pedestal again, and rotor can be rotated with respect to pedestal.

According to above-mentioned conception, water pump of the present invention also comprises one first magnet and one second magnet, wherein, first magnet is positioned on the rotor, second magnet is positioned at the housing inboard with respect to the first magnet place, and the magnetic force that first magnet and second magnet are produced can make rotor rotate on a predeterminated position.

According to above-mentioned conception, magnetic force can be a magnetic repulsion along this rotating shaft bearing of trend.

According to above-mentioned conception, the shape of first magnet and second magnet can be selected from following group respectively: circular cylinder, circular arc cylinder and cuboid; The preferably, first magnet is identical with being shaped as of second magnet

According to above-mentioned conception, the shape of yoke is to be selected from following group: circular cylinder, circular arc cylinder and cuboid.

Description of drawings

Fig. 1 is the schematic perspective view of the water pump of prior art.

Fig. 2 A is the generalized section of the water pump of prior art.

Fig. 2 B is the thin portion generalized section of rotor of the water pump of prior art.

Fig. 3 A is the generalized section of water pump of the present invention.

Fig. 3 B is the thin portion generalized section of the rotor of water pump of the present invention.

Fig. 4 is the induced magnetism flux density curve distribution figure of rotor of the water pump of the rotor of water pump of the present invention and prior art.

Embodiment

For the effect that is obtained after technical characterstic of the present invention and its enforcement is described, the apparent size of the water pump 3 among the embodiment of the following stated of the present invention is all identical with the water pump 1 of the size of assembly and prior art.

Please be simultaneously with reference to Fig. 3 A and Fig. 3 B, the water pump 3 of present embodiment includes a housing 30, a pedestal 36 and a rotor 35 etc. equally, the function of its relative position and assembly itself roughly with the described water pump 1 of prior art in assembly identical, but, in the magnetic extension part 352 in the rotor 35 in the present embodiment, comprise a yoke (Yoke) 357, this yoke 357 is coated by magnetic extension part 352 fully, the preferably, the shape of this yoke 357 can be circular cylinder, circular arc cylinder or cuboid etc.; So, after passing through electric current, coil 38 produces a magnetic field, magnetic extension part 352 is experienced when being rotated behind this magnetic field, yoke 357 can be brought into play the effect of the magnetic force of centered magnetic field, magnetic force is concentrated and by magnetic extension part 352, and then magnetic extension part 352 of the present invention is sensed compared to the more powerful magnetic field of known magnetic extension part 152, make rotor 35 can produce the bigger torque (Torque) of existing rotor 15, driving blade 154 rotates, produce stronger differential water pressures, so, the water pump 3 of present embodiment can increase usefulness under the situation that does not increase its volume.

In addition, above-mentioned water pump 3 is owing to set up yoke 357, make the rotor 35 of water pump 3 can produce bigger torque, this can make the rotational speed of rotor 35 and rotating force more powerful, at this moment, if rotor 35 is such as described in the prior art, fix the words of the predeterminated position of its rotation as if the mode that is socketed on rotating shaft with an annular gasket, annular gasket is worn and torn more easily, after annular gasket causes wearing and tearing, rotor 35 is maintained on the predeterminated position rotate, rotor 35 can be because rotating force makes that drift is indefinite up and down in its position, has affected indirectly the working life of water pump 3; Therefore, water pump 3 of the present invention also provides the setting of one first magnet 391 and one second magnet 392, solves this problem, and wherein, first magnet 391 is positioned on the rotor 35, and second magnet 392 is positioned at housing 30 inboards with respect to first magnet, 391 places; The shape of first magnet 391 and one second magnet 392 can be respectively circular cylinder, circular arc cylinder or cuboid; The preferably, the shape of first magnet 391 and one second magnet 392 is identical, but should be as limit, as long as can produce mutually along the magnetic force of the bearing of trend of rotating shaft 35 between first magnet 391 and one second magnet 392; Thus, with present embodiment, can design first magnet 391 and one second magnet 392 is oppositely arranged with identical polar, make first magnet 391 and one second magnet 392 produce magnetic repulsions, this magnetic repulsion can make rotor 35 be fixed on the predeterminated position downwards to rotate, and the drift that can not make progress.

In the technical characteristics of the present invention, can use yoke is arranged in the magnetic extension part, can be so that rotor produces stronger torque, if experimentize with two identical rotors of shape, wherein, a rotor 15 is identical described in prior art, identical described in 35 of another rotors as the above-mentioned embodiment, under the identical magnetic field that coil provided of same size, please refer to Fig. 4, it shown in the figure induced magnetism flux density curve 41 of the rotor of the induced magnetism flux density curve 42 of rotor of present embodiment and prior art, horizontal axis is the angular orientation of rotor, vertical axis is the Magnetic flux density that rotor is responded to, by can obviously finding out among the figure, the rotor 35 of present embodiment can obtain stronger Magnetic flux density compared to the rotor 15 of prior art, suffices to show that technical characteristics of the present invention can promote the effect of water pump really significantly.

Moreover, in the magnetic extension part that yoke is arranged at rotor of the present invention, promptly can produce aforesaid effect, what pay special attention to is, yoke needs to be coated by the magnetic extension part fully, because water pump has moisture content and contacts to the surface of magnetic extension part in the process of running, touch moisture content if yoke is exposed, yoke will be got rusty; In addition, difform rotor all can promote the effect of its water pump so as to implementing technology of the present invention, so the rotor in the water pump that is proposed among the present invention and every assembly are not limited to shape, size.

The above only is preferred embodiment of the present invention, the foregoing description only be used for the explanation but not in order to limit claim of the present invention, category of the present invention is that the claim scope by following the application is defined. the change or the replacement of all equivalences of being done according to the application's claim scope of the present invention all should belong to covering scope of the present invention.

Claims

1. water pump, it comprises:

One housing;

One pedestal is positioned at this housing, in order to carry a coil; And

One rotor is coupling in this pedestal by a rotating shaft, and this rotor can be rotated with respect to this pedestal, and wherein, this rotor comprises a blade and a magnetic extension part, and this magnetic extension part is around this coil, and the inside of this magnetic extension part includes a yoke.

2. water pump as claimed in claim 1 is characterized in that this coil is the position setting around this rotating shaft of connection of this pedestal; This rotating shaft is fixed on this pedestal, and a rotary shaft hole of this rotor is socketed on this rotating shaft, and this rotor can be rotated with respect to this pedestal.

3. water pump as claimed in claim 1, it is characterized in that this water pump further comprises one first magnet and one second magnet, wherein, this first magnet is to be positioned on this rotor, this second magnet is to be positioned at this housing inboard with respect to this first magnet place, the magnetic force that this first magnet and this second magnet are produced rotates this rotor on a predeterminated position; Wherein this magnetic force is a magnetic repulsion along this rotating shaft bearing of trend.

4. water pump as claimed in claim 3 is characterized in that this first magnet is identical with the shape of this second magnet.

5. the described water pump of claim 3 is characterized in that the shape of this first magnet and this second magnet is selected from following group respectively: circular cylinder, circular arc cylinder and cuboid.

6. water pump as claimed in claim 1, the shape that it is characterized in that this yoke are to be selected from following group: circular cylinder, circular arc cylinder and cuboid.

7. water pump as claimed in claim 1 is characterized in that this coil is the position setting around this rotating shaft of connection of this pedestal; This rotating shaft is fixed on this rotor, and this rotating shaft is socketed on this pedestal, and this rotor can be rotated with respect to this pedestal.

8. water pump, it comprises:

One housing;

One pedestal is positioned at this housing, in order to carry a coil;

One rotor is coupling in this pedestal by a rotating shaft, and this rotor can be rotated with respect to this pedestal, and wherein this rotor comprises a blade and a magnetic extension part, and this magnetic extension part is around this coil, and the inside of this magnetic extension part includes a yoke;

One first magnet is positioned on this rotor; And

One second magnet is positioned at this housing inboard with respect to this first magnet place, and wherein, the magnetic force that this first magnet and this second magnet are produced rotates this rotor on a predeterminated position.

9. water pump as claimed in claim 8 is characterized in that this coil is the position setting around this rotating shaft of connection of this pedestal; This rotating shaft is fixed on this pedestal, and a rotary shaft hole of this rotor is socketed on this rotating shaft, and this rotor can be rotated with respect to this pedestal.

10. water pump as claimed in claim 8 is characterized in that the shape of this first magnet and this second magnet is selected from following group respectively: circular cylinder, circular arc cylinder and cuboid.

11. water pump as claimed in claim 10 is characterized in that this first magnet is identical with the shape of this second magnet.

12. water pump as claimed in claim 8 is characterized in that the shape of this yoke is selected from following group: circular cylinder, circular arc cylinder and cuboid.

13. water pump as claimed in claim 9 is characterized in that this magnetic force is a magnetic repulsion along this rotating shaft bearing of trend.

14. water pump as claimed in claim 8 is characterized in that this coil is the position setting around this rotating shaft of connection of this pedestal; This rotating shaft is fixed on this rotor, and this rotating shaft is socketed on this pedestal, and this rotor can be rotated with respect to this pedestal.