CN2312541Y

CN2312541Y - Improved and rust-proof casing of electric motor

Info

Publication number: CN2312541Y
Application number: CN 97220268
Authority: CN
Inventors: 方文哲
Original assignee: HEJIAN ELECGTRIC-MOTOR INDUSTRY Co Ltd
Current assignee: HEJIAN ELECGTRIC-MOTOR INDUSTRY Co Ltd
Priority date: 1997-10-24
Filing date: 1997-10-24
Publication date: 1999-03-31
Anticipated expiration: 2007-10-24

Abstract

The utility model relates to an improved and rust-proof casing of an electric motor, which is composed of an upper cover, a bottom cover, etc. The utility model is characterized in that the periphery of the upper cover is uniformly provided with convex seats and guide grooves, while the periphery of the opening part at the lower part of the upper cover forms a lower clamping edge; the periphery of the bottom cover forms a flange which forms a through groove with the bottom cover and then is connected with the bottom cover though a card holder; the periphery of the opening part at the upper end of the bottom cover forms an upper clamping edge; a stator is positioned between the upper clamping edge and the lower clamping edge; the outer periphery of the upper cover is provided with an internal air cover which can cover each members, and the top end of the internal air cover forms an air hole; the outer periphery of the upper cover is also provided with an external air cover which keeps proper gap with the internal air cover. The air can enter through the gap to provide the rust-proof casing with heat radiation function and easy maintenance.

Description

The antirust shell of modified model motor

The utility model relates to a kind of antirust shell, relates in particular to the antirust shell of a kind of modified model motor.

Most electric equipment must rely on electronic motor and keep normal operation, even on automobile, motor replaces the status of internal combustion engine gradually, therefore in life now, the application of motor is quite extensive, and its most important reason is that electronic motor is the most effective a kind of device of power conversion, and its on-stream not only energy loss is very little, and can not make other yet and have dangerous byproduct, and the splendid fail safe of tool.

Present being seen motor type is quite a lot of, can install the motor of different types according to different demands, no matter but the motor of which kind of pattern, all has shell, members such as inner rotor, stator are located, and, high temperature in the motor operation is loose remove according to the design of other radiator structures.Present traditional shell mechanism, as shown in Figure 4, formed by loam cake 80, middle seat 81 and bottom 82, loam cake 80, middle seat 81 and bottom 82 are made into integration by cast iron, wherein loam cake 80 peripheries form several through holes 803, center bottom forms groove 802, and groove 802 tops form through hole 801, are able to a ccontaining bearing 804 in the groove 802; Middle seat 81 is the central design that connects, the uniform fin of outer peripheral edges, and position of the corresponding through hole 803 of lower peripheral edge surface respectively forms upward screw 811 and screw 812 down on it; Bottom 82 is kenel in the form of sheets, and its corresponding screw 812 places down form perforation 821, and form groove 822 in central top, and groove 822 bottoms are through hole 823, also can ccontaining bearing 824 in the groove 822.

When group is established, the rotor 831 of the power transmission shaft 83 of pulling will be worn, stator 832 structures are directly to compel the mode of pulling, be fixedly arranged in the seat 81, then with loam cake 80 clips in middle seat 81 upper ends, make power transmission shaft 83 end clips in bearing 804, and protrude in through hole 801, on outstanding power transmission shaft 83, set firmly a flabellum 833, then pass through hole 803 and be locked in screw 811 places by bolt 84, make power transmission shaft 83 lower ends pass the bearing 824 and the through hole 823 of bottom 82 again, pass perforation 821 and lock by several bolts 85 again and descending screw 812 places, protrude in the power transmission shaft 83 of bottom 82 this moment, can be connected driving member,, set firmly a top cover 86 again on loam cake 80 tops in addition to drive the driving member rotation, the equal qi-emitting hole 861 in the top of top cover 86, rotation that can be by flabellum 833 during motor operation, from pore 861 places with the air suction, the fin of seat 81 periphery settings in cooperating again and hot-air is discharged.

But there are problems in above-mentioned motor casing, and the result of use that makes motor is not as Expected Results, and for ease of understanding the existing shortcoming of conventional motors shell, the spy is described as follows:

1. stator, the rotor structure of motor are to form according to the cooperation by loam cake, middle seat and bottom three members at present, and press from both sides in the fixed housing volume inside of pulling, therefore three members are made by cast iron, not only manufacturing cost is higher, and cast iron quality weight is heavier, the weight that correspondingly makes motor also has many puzzlements to exist along with increase on assembling is used.

2. stator, rotor structure are to be fixedly arranged on to compel the mode of pulling in the middle seat at present, yet when stator, when the rotor structure damage must be keeped in repair, except the bolt that top cover, loam cake and bottom etc. are located screws off, more must in the mode of beaing it be separated with middle seat stator, the rotor structure that is forced into, therefore increase the difficulty of maintenance.

At present the radiating mode of motor be with air from the upper end suction, dispel the heat with the fin of seat periphery in cooperating, so radiating effect is not good.

The purpose of the utility model design provides the antirust shell of a kind of modified model motor, and it can not only make its weight saving, and splendid anticorrosion, the antirust effect of tool, and for ease of maintenaince.

The purpose of this utility model is achieved in that the antirust shell of a kind of modified model motor, this shell is provided with stator, rotor and power transmission shaft between loam cake and bottom, and between loam cake and power transmission shaft, be provided with bearing, also be provided with bearing between bottom and power transmission shaft, power transmission shaft sets firmly one with a flabellum after passing loam cake, and its characteristics are:

The uniform protruding seat of the periphery of described loam cake, form guide groove between protruding seat, and the periphery of loam cake lower ending opening portion forms down edge clipping, the periphery of bottom forms flange in addition, form groove between flange and bottom, and be connected with bottom with deck, and bottom upper end open technical scheme is to provide a kind of modified model motor antirust shell, this shell is provided with stator between loam cake and bottom, the periphery of transfer part forms edge clipping, stator is promptly between last edge clipping and following edge clipping, and locking together, outer peripheral edges at loam cake are provided with an interior fan housing with each member coating in addition, interior fan housing top forms pore, and interior fan housing outer peripheral edges coat one again and keep the outer fan housing of appropriate gap with interior fan housing, make air from interior fan housing with outside enter in the gap of fan housing.

In the above-mentioned antirust shell of modified model motor, wherein, described interior fan housing can set firmly one with loam cake by clamping bolt, clamping bolt has head, be provided with screw in the head, for outer fan housing together, and form the gap between fan housing and interior fan housing outside with bolt locking.

The utility model compared with the prior art advantage and good effect is very obvious.By above technical scheme as can be known, the utility model can possess following advantage:

1 the utility model is according to the cooperation by loam cake, bottom and several bolts, can be with each member location such as stator, rotor, the structure of fan housing, outer fan housing can be formed the structure of motor casing in cooperating again, though being still by cast iron materials, loam cake and bottom make, right and conventional motors shell is compared the middle holder structure that can omit the volume maximum, cooperate lighter interior fan housing of weight and outer fan housing again, made the overall weight reduction a lot of, therefore not only manufacturing cost is minimized, and motor weight to alleviate assembling also easy.

2 stators of the present utility model, rotor structure are to set firmly one by loam cake, bottom with cooperating of bolt of number, so during as if the palpus maintenance, outside the bolt that the fan housing place sets firmly in fan housing is reached is pulled down, also only the locking loam cake must be pulled down with the bolt of bottom loam cake is separated with bottom, therefore very convenient in the maintenance.

3 radiating modes of the present utility model are to carry out in a looping fashion, and cold air can directly be looped around the periphery of stator, so radiating effect is splendid.

4 loam cakes of the present utility model and bottom are covered by in the interior fan housing mostly, and the pore place of interior fan housing is covered by outer fan housing, and outer fan housing there is no the design of any hole slot, therefore loam cake has contracted to minimum degree with the extraneous area that directly contacts with the bottom place, and can avoid rainwater directly to infiltrate in the outer fan housing, therefore can avoid loam cake or bottom to produce the situation that burn into gets rusty, and prolong the useful life of loam cake and bottom.

By the description of a following embodiment to the antirust shell of the utility model modified model motor, can more specifically understand the purpose of this utility model, architectural feature and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:

Fig. 1 is the three-dimensional decomposition texture schematic diagram according to the antirust shell of modified model motor that the utility model proposes.

Fig. 2 is the sectional structure schematic diagram according to the antirust shell of modified model motor that the utility model proposes.

Fig. 3 analyses and observe the enforcement structural representation according to the antirust shell of modified model motor that the utility model proposes.

Fig. 4 is the sectional structure schematic diagram of prior art motor casing.

As shown in Figure 1, the utility model motor casing is made up of loam cake 10, bottom 20, interior fan housing 30 and outer fan housing 40, please cooperate referring to shown in Figure 2, loam cake 10 is to make the cap shaped attitude by cast iron, the periphery of its lower ending opening portion 11 forms down edge clipping 12, and on central authorities form through hole 13, a groove 14 is extended in last through hole 13 lower ends, in groove 14, be provided with bearing 15, in addition at the uniform protruding seat 16 of the periphery of

loam cake

10,16 formation guide grooves 17 of protruding seat, and on protruding seat 16 tops of appropriate location and side each form perforation 18 and screw 19.

Bottom 20 also is to make the cap shaped attitude by cast iron materials, the periphery of its upper end open portion 21 forms the corresponding last edge clipping 22 of edge clipping 12 down, and form lower through-hole 23 in central authorities, lower through-hole 23 upper end extending flutes 24, groove 24 also can be established bearing 25, form flange 26 in bottom 20 outer peripheral edges, the flange 26 inner grooves 27 that form, and be connected with fin 281 (see figure 1)s of appropriate location setting with deck 28 20 of flange 26 and bottoms and be integral kenel, deck 28 is that correspondence has the protruding seat 16 of perforation 18 and designs, and deck 28 top end faces then are provided with screw 29.

Interior fan housing 30 also is to be the cap shaped attitude, and just it is highly higher, is made by stainless steel material, and its top forms the pore 31 of sky, and count appropriate location at periphery screw 32 is set; Outer fan housing 40 also is to be made by stainless steel material, and it also is the cap shaped attitude, but highly interior fan housing 30 is lower slightly, and the interior fan housing of diameter 30 is big, and the corresponding screw of its periphery 32 places also form fixing threaded hole 41.

When group is established, can place between loam cake 10 and the bottom 20 organizing the members such as stator 50, rotor 51 and power transmission shaft 52 of establishing one, and make stator 50 clips in down between edge clipping 12 and the last edge clipping 22, and make power transmission shaft 52 upper ends pass bearing 15 and reach upward through hole 13, set firmly one with a flabellum 53, power transmission shaft 52 lower ends are then passed bearing 25 and lower through-hole 23 and are protruded in bottom 20, can cooperate and set firmly driving member, can be passed perforation 18 and be locked in screw 29 places this moment by number bolt 60, makes loam cake 10 and bottom 20 that each member is set firmly the all-in-one-piece state.

Interior fan housing 30 directly can be covered in outside each member then, and in making the ora terminalis clip of fan housing 30 in flange 26 places of bottom 20, and the screw 32 of fan housing 30 and screw 19 places of loam cake 10 in locking by clamping bolt 61, fan housing 30 is positioning states in making, form screw 612 in addition in head 611 (see figure 1)s of clamping bolt 61 in addition, in outer fan housing 40 is covered in again during fan housing 30 upper ends, not only rely on the spacing of clamping bolt 61 heads 611, and make

interior fan housing

30 and 40 of outer fan housings form gap 70, when bolt 62 is locked screw 41 and screw 612 places again, and make each component sets all-in-one-piece kenel.

As shown in Figure 3, when the motor entry into service,, drive flabellum 53 rotations simultaneously except driving the driving member running with power transmission shaft 52, during flabellum 53 rotations, promptly cause gas flow, and make outside air 70 suctions, again fan housing 30 inside in pore 31 places enter from the gap, make stator 50 peripheries be full of cold air, reach splendid radiating effect, the hot-air after being in harmonious proportion is then derived from groove 27 places, forms the effect of circulation heat radiation.

The utility model since its structure by loam cake, bottom, interior fan housing and outer fan housing are formed, loam cake and bottom all are the cap shape, the periphery of its peristome all forms edge clipping, stator just is stuck between the edge clipping of loam cake and bottom, be positioning states, and establish protruding seat at the loam cake periphery ring, the perimeter flange of bottom, the inner groove that forms of flange, and the deck that the protruding seat of corresponding loam cake suitably extends, pass protruding seat and be locked in the design of deck by bolt, make stator, members such as power transmission shaft location, and on power transmission shaft, set firmly a flabellum, and whole member is coated and is locked in the flange place of bottom by interior fan housing, fan housing periphery in fan housing then directly is fixedly arranged in addition, between the two and form the gap, when driving the flabellum rotation simultaneously when motor operation, even the gap of air between outer fan housing and interior fan housing enters, and directly contacting the radiating effect that reaches splendid with member such as stator, hot-air then flows out from protruding seat periphery and groove place, forms circulating radiating effect; Simultaneously, by loam cake and bottom this two by castiron member, be coated in the interior fan housing that stainless steel makes, the outer fan housing, not only make weight saving, and the splendid anticorrosion effect of tool; In addition,, therefore, during the desire maintenance, only bolt must be screwed off because stator is to press from both sides the fixing design of the locking mode of pulling up and down with loam cake, bottom, i.e. the internal structure of replaceable damage, so, keep in repair very convenient, so very practicality.

Claims

1 one kinds of antirust shells of modified model motor, this shell is provided with stator, rotor and power transmission shaft between loam cake and bottom, and is provided with bearing between loam cake and power transmission shaft, also is provided with bearing between bottom and power transmission shaft, power transmission shaft sets firmly one with a flabellum after passing loam cake, it is characterized in that:

The uniform protruding seat of the periphery of described loam cake, form guide groove between protruding seat, and the periphery of loam cake lower ending opening portion forms down edge clipping, the periphery of bottom forms flange in addition, form groove between flange and bottom, and be connected with bottom with deck, and the periphery of bottom upper end open portion forms edge clipping, stator is promptly between last edge clipping and following edge clipping, and locking together, and the outer peripheral edges at loam cake are provided with an interior fan housing with each member coating in addition, and interior fan housing top forms pore, interior fan housing outer peripheral edges coat one again and keep the outer fan housing of appropriate gap with interior fan housing, make air from interior fan housing with outside enter in the gap of fan housing.

2 according to the antirust shell of the described modified model motor of claim 1, it is characterized in that: described wherein interior fan housing sets firmly one with clamping bolt with loam cake, clamping bolt has head, be provided with screw in the head, for outer fan housing together, and outside form the gap between fan housing and interior fan housing with bolt locking.