CN100477449C

CN100477449C - Structure for preventing motor from dropping

Info

Publication number: CN100477449C
Application number: CNB2004100964982A
Authority: CN
Inventors: 刘文豪
Original assignee: Asia Vital Components Co Ltd
Current assignee: Asia Vital Components Co Ltd
Priority date: 2004-12-02
Filing date: 2004-12-02
Publication date: 2009-04-08
Anticipated expiration: 2024-12-02
Also published as: CN1783653A

Abstract

A structure for preventing the fall off of a motor includes a shaft base with a grooving, a motor set with an insulation frame, a silicon-steel sheet, a locating piece set between the groove and the frame with a chucking part, a first end and a second end, in which, said chucking part is inserted in the grooving and the two ends lean against the shaft base and the top edge of the silicon-steel sheet to locate said motor set.

Description

Prevent the structure of motor from dropping

Technical field

The invention relates to a kind of structure that prevents motor from dropping; More particularly be to utilize the axle bed of motor to be provided with keeper to fix this motor, produce obscission so as to avoiding motor.

Background technology

Because the progress of computerized information industry now is rapid, make the arithmetic speed of CPU of information products also more and more fast, the heat that is produced also with increase, in order effectively to get rid of heat, utilizing heat abstractor is the most basic outfit now, and at present the most frequently used heat abstractor is because of the most convenient in its use, also more cheap on the price no more than radiator fan.The quality of a relevant radiator fan quality often depend on that the operating condition of motor, the instability of motor operations must influence system or the whole normal operation of device, and motor bearing influences the key of motor quality and job stability especially.

The stator of general motor sticks together motor the axle bed that is fixed in the said fans seat all in the mode of gluing; But described motor in the running, owing to vibration is peeled off aforementioned gluing, causes its anchor point of motor from dropping, and then have influence on the running and the usefulness thereof of motor easily, for example: shortcomings such as vibration aggravation, generation noise, heating, the empty consumption of power.

So, No. 566757 bulletin of TaiWan, China patent discloses a kind of motor stator fixed structure, be to utilize a clip, this holding part is embedded the grooving of the cover copper of motor, and this location division be against the end face of the coil holder of described motor stator with a location division and a holding part; Yet the height of aforementioned cover copper and coil holder is often also inequality, so that this location division must consider the height of above-mentioned cover copper and coil holder simultaneously when making, and causes the difficulty in the production, the increase on the cost; In addition, its side of extending of the location division of clip to coil holder, extend to the whole winding of energy covering stator, so can avoid coil and friction rotor, since but this coil meeting and friction rotor, the technology that extends to whole winding that can covering stator with the location division position that obviously will rub is transferred to the location division by described coil, cause different sound to produce, aforementioned techniques is contradiction to some extent obviously, not only the material of said fixing button must increase, and, also make the heat of motor operation generation be difficult for distributing because the location division extends to the whole winding of energy covering stator.

Summary of the invention

Therefore, for solving the shortcoming of above-mentioned prior art, main purpose of the present invention, be to provide a kind of structure that prevents motor from dropping, by establishing at least one keeper,, make motor fix and do not come off to strengthen the support effect that stator was produced to motor in the appropriate location of motor axle bed.

An of the present invention purpose is to utilize described keeper to extend in the axle bed, so that the bearing that aforementioned axle bed was held is bestowed precompression, keeps bearing to be in stable operating condition.

According to a kind of structure that prevents motor from dropping of the present invention, comprise at least: an axle bed is arranged with a grooving on it; One groups of motors has an insulating frame, a silicon steel sheet; Be arranged with positioning piece between aforementioned grooving and the insulating frame, this keeper has a holding section, first end and the second end, described holding section is embedded into above-mentioned grooving, this first end and the second end then resist the upper limb of the silicon steel sheet of aforementioned axle bed and groups of motors respectively, to produce the effect of positioning motor group.

Description of drawings

Fig. 1 is the first preferred embodiment schematic diagram of the present invention.

Fig. 2 is the local enlarged diagram of Fig. 1.

Fig. 3 is the schematic perspective view of the keeper of Fig. 2.

Fig. 4 is the second preferred embodiment schematic diagram of the present invention.

Fig. 5 is the local enlarged diagram of Fig. 4.

Fig. 6 is the schematic perspective view of the keeper of Fig. 5.

Fig. 7 is another three-dimensional embodiment schematic diagram of the keeper of Fig. 3.

Fig. 8 is another three-dimensional embodiment schematic diagram of the keeper of Fig. 6.

Fig. 9 is the another three-dimensional embodiment schematic diagram of the keeper of Fig. 6.

Figure 10 is another three-dimensional embodiment schematic diagram of the keeper of Fig. 6.

Figure 11 is the another three-dimensional embodiment schematic diagram of the keeper of Fig. 3.

Figure 12 is another three-dimensional embodiment schematic diagram of the keeper of Fig. 3.

Figure 13 is the Application Example schematic top plan view of the keeper of Fig. 9, Figure 10, Figure 11, Figure 12.

Drawing reference numeral explanation: 10 flabellum groups; 11 flabellum wheel hubs; 111 core seats; 12 axle center; 13 motor shells; 14 magnetic stripes; 15 clasps; 20 groups of motors; 21 insulating frames; 22 silicon steel sheets; 23 circuit boards; 24 coils; 30 fan bases; 31 axle beds; 311 protuberances; 312 groovings; 32 bearings; 33 apertures; 40 keepers; 41 holding sections; 42 first ends; 42 ' the second end; The R spring.

Embodiment

For other advantage of the present invention, purpose, technical characterictic and effect,, and be tending towards understanding by the detailed description of this case preferred embodiment of following conjunction with figs.:

Please refer to Fig. 1, show first preferred embodiment of motor single bearing structure of the present invention, comprising: a flabellum group 10, a groups of motors 20 and a fan base 30; This flabellum group 10 is made up of flabellum wheel hub 11, axle center 12, motor shell 13, magnetic stripe 14, the formed core seat 111 of the bottom center that aforementioned flabellum wheel hub 11 is located in described axle center 12, this motor shell 13 is arranged on the medial margin of described flabellum wheel hub 11, and this magnetic stripe 14 is located at the medial margin of aforementioned motor shell 13.

This groups of motors 20, be set in aforementioned fan base 30, described groups of motors 20 is made of insulating frame 21, silicon steel sheet 22, circuit board 23, coil 24, and aforementioned silicon steel sheet 22 is located at described insulating frame 21 outsides, and this coil 24 is surrounded on the described insulating frame 21 with aforementioned silicon steel sheet 22; The center of said fans seat 30 has the axle bed 31 of a hollow, aforementioned circuit plate 23 is arranged between described insulating frame 21 bottoms and this axle bed 31, above-mentioned axle center 12 is located in these axle bed 31 formed receiving spaces, between 12 outsides, described axle center and aforementioned axle bed 31, be arranged with at least one bearing 32, (this bearing 32 can be ball bearing, have several spheroids in its housing, and in figure, do not show), and make this axle center 12 can be subjected to the carrying of this bearing 32 and rotate, and has a spring R in

aforementioned bearings

32 and 11 of above-mentioned flabellum wheel hubs.

These axle bed 31 inner edges are provided with a protuberance 311, and the end that this axle center 12 is not connected with the flabellum wheel hub 11 of above-mentioned flabellum group 10 is arranged with a clasp 15, borrow aforementioned protuberance 311 to prop up described bearing 32, can be in order to locate this bearing 32, and 32 pairs of these clasps of aforementioned bearings 15 form interference effect, so as to stoping above-mentioned axle center 12 in the running, deviate from from this axle bed 31.

In addition, please refer to Fig. 2 (and please cooperate) with reference to figure 1, described axle bed 31 is concaved with a grooving 312, between the insulating frame 21 of the grooving 312 of aforementioned axle bed 31 and groups of motors 20, be arranged with positioning piece 40, this keeper 40 can roughly be a ring-type and (please cooperate with reference to figure 3, Fig. 6, Fig. 7, Fig. 8) or the non-annularity configuration (please cooperate with reference to figure 9, Figure 10, Figure 11, Figure 12) and have a holding section 41, first end 42, the second end 42 ', when making described holding section 41 embed above-mentioned grooving 312, this first end 42, the second end 42 ' props up the upper limb of the silicon steel sheet 22 of aforementioned axle bed 31 and groups of motors 20 respectively, to produce the effect of the described groups of motors 20 in location.

Please refer to Fig. 4, Fig. 5, be second preferred embodiment of the present invention, be with the difference of above-mentioned first preferred embodiment: described first end 42 extends downwards towards the inside of this hollow axle bed 31 and replaces above-mentioned bearing 32, can form precompression, favourable described bearing 32 reduces vibration and steady running (is supposed aforementioned bearings 32 use ball bearings, more can avoid bear box and its inner spheroid shortcoming precompression and produce inner play, to reduce friction, noise, heating, the empty consumption of power), to promote the running usefulness of motor, avoid motor from dropping, increase useful life etc.

Please refer to Fig. 7, Fig. 8, another possible embodiments for keeper 40 of the present invention, be with the difference of above-mentioned first and second preferred embodiment: the holding section 41 of this keeper 40, the second end 42 ' are provided with for local, so that described holding section 41 is when embedding above-mentioned grooving 312, this first end 42, the second end 42 ' prop up the upper limb of the silicon steel sheet 22 of aforementioned axle bed 31 and groups of motors 20 respectively, to produce the effect of the described groups of motors 20 in location.

Please refer to Fig. 9, Figure 10, Figure 11, Figure 12, be a possible embodiments again of keeper 40 of the present invention, be with the difference of the foregoing description: this keeper 40 can be the non-annularity configuration, with several keepers 40 discrete groups of motors 20 (please refer to Figure 13) that are arranged in; That is described holding section 41 embeds above-mentioned grooving 312, and this first end 42, the second end 42 ' prop up the upper limb of aforementioned axle bed 31 and the silicon steel sheet 22 of groups of motors 20 respectively, to produce the effect (please refer to Figure 11, Figure 12) of the described groups of motors 20 in location, or this first end 42 extends downwards towards the inside of this hollow axle bed 31 and replaces above-mentioned bearing 32 (please refer to Fig. 9, Figure 10), other is identical with aforementioned first or second embodiment, does not repeat them here.

The above only is the preferred embodiment of this case, is not in order to restriction the present invention, if comply with the change that conception of the present invention is done, in not breaking away from the present invention's spirit scope,, modify and use for various variations, the equivalent action that produces all should be contained in the interest field of the present invention.

Claims

1, a kind of structure that prevents motor from dropping comprises at least:

An axle bed is concaved with a grooving; A groups of motors has an insulating frame, one group of silicon steel sheet; Be arranged with keeper between insulating frame and the aforementioned grooving, it is characterized in that:

This keeper has a holding section, a first end and a second end, described holding section embeds above-mentioned grooving, and this first end and the second end prop up the upper limb of the silicon steel sheet of aforementioned axle bed upper limb and groups of motors respectively, to produce the effect of the described groups of motors in location.

2, the structure that prevents motor from dropping as claimed in claim 1, it is characterized in that: described first end extends downwards towards the inside of this axle bed.

3, the structure that prevents motor from dropping as claimed in claim 1 or 2 is characterized in that: the holding section of described keeper, the second end are provided with for local.

4, the structure that prevents motor from dropping as claimed in claim 1 or 2 is characterized in that: described keeper is several and the discrete groups of motors that is arranged in.