CN100397756C - Motor for dish-washing machine - Google Patents
Motor for dish-washing machine Download PDFInfo
- Publication number
- CN100397756C CN100397756C CNB021567573A CN02156757A CN100397756C CN 100397756 C CN100397756 C CN 100397756C CN B021567573 A CNB021567573 A CN B021567573A CN 02156757 A CN02156757 A CN 02156757A CN 100397756 C CN100397756 C CN 100397756C
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- stator
- shell
- stator core
- rotor
- dish
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- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to a motor for dish-washing machines, which comprises a stator, a rotor and a rotary shaft connected with the rotor into a whole, wherein both ends of the rotor are provided with fan blades which are respectively staggered along the direction of a rotary shaft line; the stator comprises a stator iron core which forms a plurality of narrow grooves which are formed by the superposition of insulating laminated steel plates towards a central area on the edges of a penetrating hole; the output end of the rotary shaft is provided with a first shell, and the other end is provided with a second shell. The first and the second shells are respectively provided with bearing supporting parts of which the outer circumferences are bracket bodies. At least one outer circumference in two bracket bodies extends towards one side of the stator iron core and convexly forms a side wall. A wind discharge hole is formed between the side wall and the stator iron core. The circumference of the bearing supportingpart on the second shell is provided with a plurality of inhalation holes. Air can flow along the side surface of a coil of the end of the stator. Therefore, the present invention can promote the cooling of the coil of the stator. Because the side wall of each shell surrounds the coil of the stator, splashy sparks can be directly cut, and the danger of a short circuit and a caused fire can be avoided.
Description
Technical field
The present invention relates to Motor for dish-washing machine in a kind of electricity field motor, particularly relate to and a kind ofly can promote coil cooling and can suppress the Motor for dish-washing machine that spark splashes.
Background technology
See also shown in Figure 1, existing Motor for dish-washing machine is by forming as the lower part: the inner stator 11 that forms receiving space, be positioned at the inside and the rotatable rotor 21 of stator 11, on the axle center of rotor 21, become one and rotatable rotating shaft 25, be positioned at the both sides of stator 11 and can cooperate first shell 31 and second shell 41 of rotating shaft 25 rotations along the axis direction of rotating shaft with rotor 21.
In addition, on first shell 31 and second shell 41, for rotating shaft 25 is installed, and cooperate rotating shaft 25 rotations, zone in the central is provided with possesses the bearing support 34,44 that can accommodate bearing 35, and the outer circumference of this bearing support 34,44 is respectively pallet body 32,42; , the edge that makes pallet body 32,42 prolongs a plurality of legs and feet portion 36,46 of formation for being incorporated into each angle of stator core 13.
Around the bearing support 44 of pallet body 42 middle sections, be provided with a plurality of inlet holes 45 that when rotor 21 is rotated, can suck air; And along the radial direction of pallet body 42, in the outside of inlet hole 45, have to suck air and concentric arrangement many to intercommunicating pore 48 mutually.
According to said structure, when rotor 21 is the centre-driven rotation with rotating shaft 25, because the rotation of fan blade 23 is arranged air flows takes place; In the inboard of first shell 31, be subjected to the rotation of fan blade 23 and the air that flows, through the space of pallet body 32 and end coil 16a end, and the space between the legs and feet portion 36 discharges.
Field at second shell 41, when fan blade 23 begins to rotate, suck air from the outside by inlet hole 45, and the air that is inhaled into contacts end coil 16b and cools off after this coil, discharge by space and the intercommunicating pore 48 that between legs and feet portion 46, forms.
Above-mentioned Motor for dish-washing machine, though can provide user one to have the convenient Motor for dish-washing machine that cleans effect, really has progressive, but when using, reality but finds also to have in its structure some shortcomings, cause this Motor for dish-washing machine in practical application, fail to reach best result of use, and its shortcoming can be summarized as follows:
On existing this Motor for dish-washing machine, be drawn in the inner air by inlet hole 45 because being subjected to the revolving force of fan blade 23, a part is discharged to the outside along the plate face direction of stator core 13, in addition after the medial surface of a part of contact end coil 16b, flow and discharge by each intercommunicating pore 48 along the rotation direction.Therefore, the lateral surface of coil 16b partly forms and does not almost have the stagnation of air flows space S endways.Therefore, though stator coil 15 is exposed to the outside by the space between first shell 31 and second shell 41,, can not reach the cooling effect of expection because stagnate the existence in space.
In addition, on above-mentioned existing this Motor for dish-washing machine, because stator core 13 is directly exposed to the outside, therefore, the contacted possibility of washings that contains washing agent and irrigation with dishwasher is very big.Like this, drive under the surface of stator core 13 and the contacted state of washings, because the hot conditions of stator core 13 heatings is arranged, washing agent and irrigation react to each other, and cause the damage of stator core 13 insulating coatings.Connect power supply under the situation of insulating coating damage, short circuit phenomenon will occur, spark can splash towards periphery by the space that forms between the legs and feet portion 36,46, therefore, has the danger that causes fire.
This shows that above-mentioned existing Motor for dish-washing machine still has many defectives, and the assistant officer waits to be improved.
The cooling that promotes coil can't be provided and can suppress the splash defective of effect of cremate because above-mentioned existing Motor for dish-washing machine exists, the design people is based on abundant practical experience and professional knowledge, actively studied innovation, through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcomes the defective that existing Motor for dish-washing machine exists, and a kind of Motor for dish-washing machine of new structure is provided, and makes it can promote the coil cooling and can suppress spark to splash.
The present invention solves its technical problem underlying and realizes by the following technical solutions.According to the Motor for dish-washing machine that the present invention proposes, comprise the inner stator that is provided with receiving space that forms, be positioned at the inside and the rotatable rotor of stator, on the axle center of rotor, become one and rotatable rotating shaft with rotor.Described two ends of rotor portion is provided with respectively along rotation direction projection and at a distance of the staggered fan blade of certain distance.Described stator comprises: form at middle section and be provided with through hole, form a plurality of slits that are provided with towards middle section at the through hole edge, and put the stator core that forms with the stacked sheet pack of the insulation that is square shape, be wound on the slit and each forms the stator coil that is provided with end coil in the both sides of stator core along the thickness direction of stator core.Along the axis direction of rotating shaft, at output first shell is housed, in contrast the other end second shell is housed.Outside first shell, the middle section of second shell is respectively equipped with the bearing support that can accommodate bearing, the excircle of this bearing support is a pallet body.Wherein the outer peripheral edges of at least one pallet body are extended and are convexed to form sidewall to each limit of stator core to stator core one side in two pallet bodies, form vent between described sidewall and the stator core.Around the described second shell upper bearing (metal) support sector, form and be provided with a plurality of inlet holes.
The present invention solves its technical problem and can also adopt following technical measures further to realize.
Aforesaid Motor for dish-washing machine, the outer peripheral edges of wherein said two pallet bodies stagger mutually respectively and to extend and convex to form sidewall to each limit of stator core to stator core one side, and described two sidewalls respectively and form vent between the stator core.
Aforesaid Motor for dish-washing machine is provided with the air guide plate that a plurality of ecto-entads tilt near described fan blade one side around the wherein said second shell upper bearing (metal) support sector.
Aforesaid Motor for dish-washing machine, wherein said a plurality of air guide plates are circular-arc arrangement at circumferencial direction.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, Motor for dish-washing machine of the present invention is provided with almost and is vertically arranged pallet body with rotating shaft, the edge of pallet body forms sidewall to each stator core one lateral bending Qu Yanchang, and first shell, second shell all and between each limit of stator core form vent.According to these structures, air can flow along the side surface part of end coil, eliminates air stagnant wake S, thereby can promote the stator coil cooling.Because the sidewall of each shell is round stator coil, thereby can avoid the damage of the insulating coating of the stator coil that washings cause; Simultaneously each sidewall can also directly cut off the spark that splashes, thereby has avoided short circuit and caused the danger of fire.
In sum, Motor for dish-washing machine of the present invention, it is in limited field, technical development space, no matter structurally or bigger improvement all arranged on the function, and have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the profile of existing Motor for dish-washing machine.
Fig. 2 is the profile of Fig. 1 after the axis rotates an angle.
Fig. 3 is the structural representation of second shell among Fig. 1.
Fig. 4 is the profile of Motor for dish-washing machine of the present invention.
Fig. 5 is the profile of Fig. 4 after the axis rotates an angle.
Fig. 6 is the structural representation of second shell among Fig. 4.
The symbol description of each main parts size among the figure:
11: stator 13: stator core
23: fan blade 25: rotating shaft
Shell 32 in 31: the first: pallet body
42: pallet body 56: side wall portion
66: side wall portion 58: vent
68: vent 45: inlet hole
65: the air guide plate
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to Motor for dish-washing machine embodiment, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
See also Fig. 4, Fig. 5, shown in Figure 6, Motor for dish-washing machine of the present invention mainly comprises the inner stator 11 that is provided with receiving space that forms; Be positioned at the inside and the rotatable rotor 21 of stator 11; On the axle center of rotor 21, become one and rotatable rotating shaft 25 with rotor 21.
Wherein stator 11 is by forming as the lower part: form at middle section and be provided with through hole 14a, form a plurality of slit 14b that are provided with towards middle section at through hole 14a edge, and put the stator core 13 that forms with the stacked sheet pack of the insulation that is square shape; Be wound in that slit 14b goes up and each forms the stator coil 15 that is provided with end coil 16a, 16b in the both sides of stator core 12 along the thickness direction of stator core 13.
Along the rotation direction of rotor 21, in its both side ends, the flowing of air in order to promote to rotate, be provided with from each end face to the axis direction projection and along peripheral direction at a distance of the staggered a plurality of fan blade 23 of certain distance.
In addition,, first shell 31 is housed, and second shell 41 is housed at the other end 26b of side in contrast at output 26a along the length direction of rotating shaft 25.First shell 31 and second shell 41 outwards are the circular shape projection from each limit of stator core 13, therefore, and each limit of stator core 13 between formed and be communicated in outside vent 58,68.
On first shell 31, the zone for rotating shaft 25 is installed, and cooperates rotating shaft 25 rotations in the central, is provided with the bearing support 34 that can accommodate bearing 35, and the outer circumference of bearing support 34 is a pallet body 32.From pallet body 32 excircles along axis direction to each limit projection of stator core 13 1 lateral bending Qu Bingxiang stator cores 13, thereby and form the sidewall 56 of vent 58 between the stator core 13.Around above-mentioned pallet body 32,, convex to form and be provided with installation portion 54 in order to combine with blade of not shown dishwasher etc.
On second shell 41, the zone for rotating shaft 25 is installed, and cooperates rotating shaft 25 rotations in the central, is provided with the bearing support 44 that can accommodate bearing 35, and the outer circumference of bearing support 44 is a pallet body 42.Prolong and to each limit projection of stator core 13 from this pallet body 42 along axis direction to stator core 13 1 sides, thereby and form the sidewall 66 of vent 68 between this stator core 13, sidewall 66 is staggered with sidewall 56.Sidewall 66, sidewall 66 is staggered with sidewall 56.
Around bearing support 44, form and be provided with a plurality of inlet holes 45 that can suck air from the outside; And along the radial direction of pallet body 42, the outside at inlet hole 45, can be directing into fan blade 23 1 sides by inlet hole 45 inhaled airs, simultaneously, can guide the effect that is subjected to fan blade 23 and a part along the passage between the side wall portion 66 of the sidewall of end coil 16b and second shell 41 along the radial direction flow air, again be drawn into a plurality of air guide plates 65 of fan blade 23 1 sides, these a plurality of air guide plates 65 are circular-arc arrangement at circumferencial direction.
By above-mentioned these structures, after rotor 21 begins rotation,, form flowing of air in first shell, 31 zones because the rotation of fan blade 23 is arranged.Its part of air outwards flows by the end coil 16a that draws from each slit and the space between the stator core 13 and discharges by vent 58; And another part air at first contacts side wall portion 56, flows through then between side wall portion 56 and the end coil 16a sidewall, and then is drawn into fan blade 23 1 sides, thereby can eliminate the stagnation of air, promotes the cooling of end coil 16a side surface part with this.
Zone at second shell 41, rotation by fan blade 23, suck air from the outside by inlet hole 45, and, directly be discharged to the outside by vent 68 by the part the flow air laterally of space between the stator coil 15 of drawing from each slit.Airborne another part, contact the sidewall 66 of second shell 41 earlier, then along the side flow of end coil 16b, then be subjected to the guiding of air guide plate 65 and attracted to fan blade 23 1 sides again, thereby the air that can eliminate end coil 16b side surface part is stagnated, and promotes the cooling of stator coil 15 with this.
And, on first shell 31 and second shell 41, can be because respectively have around the sidewall 56,66 of stator coil 15, therefore, can prevent that stator coil 15 from directly contacting with the washings that contain washing agent and/or irrigation, thereby can avoid the damage of stator coil 15 insulating coatings that cause because of washings.Because sidewall 56,66 can directly cut off the spark that splashes, also avoid the danger of short circuit and fire simultaneously.
The technological innovation of the Motor for dish-washing machine of the present invention that above-mentioned structure like this constitutes all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified to the equivalent embodiment of equivalent variations, but every technical solution of the present invention content that do not break away from,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1. Motor for dish-washing machine, it is characterized in that comprising the inner stator (11) that is provided with receiving space that forms, be positioned at the inside and the rotatable rotor (21) of stator (11), on the axle center of rotor (21), become one and rotatable rotating shaft (25) with rotor (21); Described rotor (21) both ends are provided with respectively along rotation direction projection and at a distance of the staggered fan blade (23) of certain distance; Described stator (11) comprising: form at middle section and be provided with through hole (14a), form a plurality of slits (14b) that are provided with towards middle section at through hole (14a) edge, and put the stator core (13) that forms with the stacked sheet pack of the insulation that is square shape; Be wound in that slit (14b) is gone up and each forms the stator coil (15) that is provided with end coil (16a, 16b) in the both sides of stator core (12) along the thickness direction of stator core (13); Axis direction along rotating shaft (25), be equiped with first shell (31) at output (26a), be equiped with second shell (41) in contrast the other end (26b), outside this first shell (31), the middle section of second shell (41) is respectively equipped with the bearing support (34 that can accommodate bearing (35), 44), bearing support (34,44) excircle is a pallet body (32,42), pallet body (32,42) have at least pallet body outer peripheral edges to convex to form sidewall in to the extension of stator core (13) one sides and to each limit of stator core (13), described sidewall and stator core form vent between (13), around described second shell (41) the upper bearing (metal) support sector (44), formation is provided with a plurality of inlet holes (45), wherein said two pallet bodies (32,42) outer peripheral edges stagger mutually and convex to form sidewall (56 to the extension of stator core (13) one sides and to each limit of stator core (13) respectively, 66), described two sidewalls (56,66) form respectively and between the stator core (13) and be provided with vent (58,68).
2. Motor for dish-washing machine according to claim 1, what it is characterized in that wherein said second shell (41) upper bearing (metal) support sector (44) is provided with the air guide plate (65) that a plurality of ecto-entads tilt near described fan blade (23) one sides on every side.
3. Motor for dish-washing machine according to claim 1 is characterized in that wherein said a plurality of air guide plates (65) are circular-arc arrangement at circumferencial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021567573A CN100397756C (en) | 2002-12-17 | 2002-12-17 | Motor for dish-washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021567573A CN100397756C (en) | 2002-12-17 | 2002-12-17 | Motor for dish-washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1508956A CN1508956A (en) | 2004-06-30 |
| CN100397756C true CN100397756C (en) | 2008-06-25 |
Family
ID=34236386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021567573A Expired - Fee Related CN100397756C (en) | 2002-12-17 | 2002-12-17 | Motor for dish-washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100397756C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070290560A1 (en) * | 2004-11-04 | 2007-12-20 | Matsushita Electric Industrial Co., Ltd. | Motor and Electric Apparatus Using the Same Motor |
| JP7365960B2 (en) * | 2020-04-27 | 2023-10-20 | 東芝三菱電機産業システム株式会社 | rotating electric machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167683A (en) * | 1976-10-06 | 1979-09-11 | Aktiebolaget Skf | Electric motor for dish washing machines or the like |
| JPS61189159A (en) * | 1985-02-15 | 1986-08-22 | Sanyo Electric Co Ltd | Dc brushless motor |
| US4904891A (en) * | 1988-08-02 | 1990-02-27 | Emerson Electric Co. | Ventilated electric motor assembly |
| US5081384A (en) * | 1988-10-11 | 1992-01-14 | Schorch Gmbh | Cooled electric motor protecting components from coolant |
| CN1305258A (en) * | 1999-11-02 | 2001-07-25 | Lg电子株式会社 | Motor possessing cooling device |
-
2002
- 2002-12-17 CN CNB021567573A patent/CN100397756C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4167683A (en) * | 1976-10-06 | 1979-09-11 | Aktiebolaget Skf | Electric motor for dish washing machines or the like |
| JPS61189159A (en) * | 1985-02-15 | 1986-08-22 | Sanyo Electric Co Ltd | Dc brushless motor |
| US4904891A (en) * | 1988-08-02 | 1990-02-27 | Emerson Electric Co. | Ventilated electric motor assembly |
| US5081384A (en) * | 1988-10-11 | 1992-01-14 | Schorch Gmbh | Cooled electric motor protecting components from coolant |
| CN1305258A (en) * | 1999-11-02 | 2001-07-25 | Lg电子株式会社 | Motor possessing cooling device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1508956A (en) | 2004-06-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20100118 |