CN204597692U - Bracing frame type electric motor end cap - Google Patents
Bracing frame type electric motor end cap Download PDFInfo
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- CN204597692U CN204597692U CN201520329093.2U CN201520329093U CN204597692U CN 204597692 U CN204597692 U CN 204597692U CN 201520329093 U CN201520329093 U CN 201520329093U CN 204597692 U CN204597692 U CN 204597692U
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- layer body
- annular
- electric motor
- end cap
- bracing frame
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Abstract
The utility model provides a kind of bracing frame type electric motor end cap, comprise main body, bearing pedestal and support, described bearing pedestal comprises the outer layer body of hollow cylindrical and the internal layer body of hollow cylindrical, described sidewall, top cover and outer layer body one drawing and forming, the lower end of described sidewall is uncovered, the upper end annulus of described outer layer body is connected with the inner ring of described top cover, the outer wall of described internal layer body is fixedly connected with the inwall of described outer layer body, bearing pedestal is separated into outer layer body and internal layer body by this bracing frame type electric motor end cap, the realization ensureing high-axiality is more conducive to relative to past integrated bearing pedestal after multi-drawing finishing, in addition, the each impact to abnormity, flow harden and stress reducing sheet material due to the minimizing of drawing numbers, the circularity of the main body inner ring of bracing frame type electric motor end cap is improved, axiality and circularity two indexs all on lifting basis to a certain extent, make motor Oscillation Amplitude, frequency and noise in running all receive suppression.
Description
Technical field
The utility model relates to technical field of motors, particularly relates to a kind of bracing frame type electric motor end cap.
Background technology
Be applied in the micro-machine of the housed devices such as air-conditioner outdoor unit, indoor set, air purifier, high-power ventilating fan, air curtain, very important performance index are the axialities between the stator of motor and rotor, because be generally stator is fixed on the inner ring of electric motor end cap main body, rotor is fixed on motor shaft, the two ends of motor shaft are connected with electric motor end cap by the bearing being fixed on bearing pedestal, so this index depends primarily on the axiality between the bearing chamber inner ring of electric motor end cap center and main body inner ring, in the prior art, electric motor end cap utilizes diel to produce through ten multiple working procedures such as blanking punching, stretching, pressing, shapings sheet material, main body and the bearing pedestal of electric motor end cap are one-body molded, be subject to the restriction of mask error and mismachining tolerance, the main body inner ring of electric motor end cap out and the axiality of bearing chamber inner ring are at about 0.1mm, and, mould finishing is utilized to form in order to the precision improving bearing chamber needs to rely on after multi-drawing, owing to being subject to each to abnormity of sheet material, the impact of flow harden and stress, the thickness of local sheet material can be inconsistent, cause the circularity level of the main body inner ring of electric motor end cap at about 0.15mm, the poor motor Oscillation Amplitude in running that makes of axiality is large, frequency is high, produce larger noise, the theme inner ring circularity level of electric motor end cap is lower, and the air gap between stators and rotators can be made larger, therefore electric efficiency is affected, these two kinds of defects that existing electric motor end cap exists, have a strong impact on the Performance and quality level of motor, also counteracts that its utilization in the industries such as air-conditioning.
Utility model content
The technical problems to be solved in the utility model is: for electric motor end cap of the prior art due to through multi-drawing, cause for the main body inner ring of electric motor end cap and the axiality of bearing chamber inner ring is not high and the circularity of main body inner ring is not high problem, the utility model provides a kind of bracing frame type electric motor end cap and solves the problems referred to above.
The utility model solves the technical scheme that its technical problem adopts: a kind of bracing frame type electric motor end cap, comprise main body, bearing pedestal and support, described main body comprises the sidewall of hollow cylindrical and the top cover of annular, described support comprises base plate and the fixed head of integrative-structure, the upper surface that described base plate is fixed on described top cover covers the upper end of described bearing pedestal, described bearing pedestal comprises the outer layer body of hollow cylindrical and the internal layer body of hollow cylindrical, described sidewall, top cover and outer layer body one drawing and forming, the lower end of described sidewall is uncovered, upper end annulus is connected with the outer ring of described top cover, the upper end annulus of described outer layer body is connected with the inner ring of described top cover, the height of the upper end of described outer layer body is equal to or slightly less than the upper end level of described sidewall and described outer layer body is coaxial with described sidewall, the outer wall of described internal layer body is fixedly connected with the inwall of described outer layer body.
As preferably, described top cover comprises the Part I of annular and the Part II of annular, the Part I of described annular and the Part II of annular are all perpendicular to the axis of described sidewall, the outer ring of the Part I of described annular and the upper end annulus of described sidewall are connected as a single entity, the inner ring of the outer ring of the Part II of described annular and the Part I of described annular be connected as a single entity and the height of the Part II of annular a little less than the height of the Part I of described annular, the inner ring of the Part II of described annular and the upper end annulus of described outer layer body are connected as a single entity, described base plate is fixed on the upper surface of the Part II of described annular, the upper surface of described base plate is a little less than the upper surface flush of the upper surface of the Part I of described annular or the Part I with described annular.
As preferably, described support also comprises the connecting portion of hollow cylindrical, the outer ring of described base plate is circular and is connected as a single entity with the lower end annulus of described connecting portion, the race diameter of described base plate is roughly the same with the race diameter of the Part II of described annular, described fixed head is annular and the upper end annulus of its inner ring and described connecting portion is connected as a single entity, the outer ring of described fixed head is also provided with the flange of hollow cylindrical, the upper end annulus of described flange and the outer ring of described fixed head is connected as a single entity or the lower end annulus of described flange and the outer ring of described fixed head are connected as a single entity.
As preferably, described fixed head circumferentially offers at least two installing holes.
As preferably, described base plate offers the axis hole coaxial with described bearing pedestal between two parties.
As preferably, the Part II of described base plate and described annular is welded and fixed or rivets fixing.
As preferably, between the outer wall of described internal layer body and the inwall of described outer layer body, be also provided with a layer insulating.
As preferably, the material of described internal layer body is aluminium, engineering plastics or BMC, and the material of described insulating barrier is rubber or plastics.
As preferably, the radial thickness of described internal layer body is 2 ~ 10mm.
The beneficial effects of the utility model are, bearing pedestal is separated into outer layer body and internal layer body by this bracing frame type electric motor end cap, the bearing pedestal of separate type, by improving the axiality of bearing chamber and main body to the finish turning of internal layer body, is more conducive to relative to past integrated bearing pedestal after multi-drawing finishing the realization ensureing high-axiality; In addition, the each impact to abnormity, flow harden and stress reducing sheet material due to the minimizing of drawing numbers, the circularity of the main body inner ring of electric motor end cap is improved, axiality and circularity two indexs all on lifting basis to a certain extent, motor Oscillation Amplitude, frequency and noise in running is made all to receive suppression, and the air gap between stators and rotators reduces, improve electric efficiency, for the application of motor in every profession and trade with this electric motor end cap, there is positive effect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the axial cross section schematic diagram of an embodiment of the utility model bracing frame type electric motor end cap.
Fig. 2 is the axial cross section schematic diagram of another embodiment of the utility model bracing frame type electric motor end cap.
In figure 1, sidewall, 2, top cover, 3, outer layer body, 4, internal layer body, 5, insulating barrier, 6, support, 201, the Part I of annular, 202, the Part II of annular, 601, fixed head, 602, connecting portion, 603, base plate, 604, flange.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.On the contrary, embodiment of the present utility model comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.In addition, in description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of preferred implementation of the present utility model comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiment person of ordinary skill in the field of the present utility model.
As shown in Figure 1, the utility model provides a kind of bracing frame type electric motor end cap, comprise main body, bearing pedestal and support 6, main body comprises the sidewall 1 of hollow cylindrical and the top cover 2 of annular, support 6 comprises base plate 603 and the fixed head 601 of integrative-structure, the upper surface that base plate 603 is fixed on top cover 2 covers the upper end of bearing pedestal, bearing pedestal comprises the outer layer body 3 of hollow cylindrical and the internal layer body 4 of hollow cylindrical, sidewall 1, top cover 2 and outer layer body 3 one drawing and forming, the lower end of sidewall 1 is uncovered, upper end annulus is connected with the outer ring of top cover 2, the upper end annulus of outer layer body 3 is connected with the inner ring of top cover 2, the height of the upper end of outer layer body 3 is slightly less than the upper end level of sidewall 1 and outer layer body 3 is coaxial with sidewall 1, the outer wall of internal layer body 4 is fixedly connected with the inwall of outer layer body 3, owing to bearing pedestal to be separated into internal layer body 4 and outer layer body 3 two parts, therefore without the need to being adjusted the axiality between bearing chamber and sidewall 1 by stretching finishing repeatedly, decontrol this restriction, by being more conducive to the finish turning of internal layer body 4 axiality improving them, and sheet material is each to abnormity, the influence degree of flow harden and stress reduces greatly, the uniformity coefficient of the local thickness of sidewall 1 improves, therefore the circularity of sidewall 1 inner ring can more be ensured, the raising of circularity can improve the intensity of sidewall 1 accordingly, when turning, the clamping of fixture oppose side wall 1 not easily causes it to be out of shape, more be conducive to the axiality guaranteeing sidewall 1 and internal layer body 4, in addition on the intensity basis not affecting bracing frame type electric motor end cap, the thickness of sheet material can be reduced, save materials.
Top cover 2 comprises the Part I 201 of annular and the Part II 202 of annular, the Part I 201 of annular and the Part II 202 of annular are all perpendicular to the axis of sidewall 1, the outer ring of Part I 201 and the upper end annulus of sidewall 1 of annular are connected as a single entity, outer ring and the inner ring of Part I 201 of annular of the Part II 202 of annular be connected as a single entity and the height of the Part II 202 of annular a little less than the height of the Part I 201 of annular, the inner ring of Part II 202 and the upper end annulus of outer layer body 3 of annular are connected as a single entity, base plate 603 and the Part II 202 of annular are riveted fixing, the upper surface of base plate 603 is a little less than the upper surface of the Part I 201 of annular, the Part II 202 of annular is equivalent to the annular groove being centered at the Part I 201 arranging annular, base plate 603 drops in annular groove and with the Part II 202 of annular and is fixedly connected with, the installation being beneficial to base plate 603 that is designed with of annular groove is located, the height of base plate 603 can not exceed the height of the Part I 201 of annular, base plate 603 is equivalent to be embedded in annular groove, be not vulnerable to the vibration of external force or motor self and depart from top cover 2, support 6 also comprises the connecting portion 602 of hollow cylindrical, the outer ring of base plate 603 is circular and is connected as a single entity with the lower end annulus of connecting portion 602, the race diameter of base plate 603 is roughly the same with the race diameter of the Part II 202 of annular, fixed head 601 is annular and the upper end annulus of its inner ring and connecting portion 602 is connected as a single entity, the outer ring of fixed head 601 is also provided with the flange 604 of hollow cylindrical, the lower end annulus of flange 604 and the outer ring of fixed head 601 are connected as a single entity, flange 604 can the intensity of reinforced support 6, reduce the material thickness of support 6, reduce materials cost, fixed head 601 circumferentially offers at least two installing holes, base plate 603 offers the axis hole coaxial with bearing pedestal between two parties.
The material of internal layer body 4 is aluminium, engineering plastics or BMC, aluminium, engineering plastics and BMC have some strength can ensure the material that motor runs well, and be easy to cut, convenient processing, can also adopt in addition and have some strength and other metal or the nonmetallic materials that can be used for turning; If adopt the nonmetallic materials of such as engineering plastics or BMC, effectively shaft voltage can be reduced for direct current machine, improve the useful life of bearing, and effectively can reduce the impact of supply harmonic on motor, reduce the noise of motor, can because of resonance that bad coupling produces between isolation coupling motor and miscellaneous equipment.As shown in Figure 2, the insulating barrier 5 of one deck rubber or plastic material is also provided with in another embodiment between the outer wall of internal layer body 4 and the inwall of outer layer body 3, if internal layer body 4 is metal material, insulating barrier 5 not only can isolate galvano-cautery, and the stress that can reduce between internal layer body 4 and outer layer body 3, reduce friction, reduce noise.
The radial thickness of internal layer body 4 is different according to the size of different motor and model, is 2 ~ 10mm for thickness the micro-machine being generally applied in the housed devices such as air-conditioner outdoor unit, indoor set, air purifier, high-power ventilating fan, air curtain.
This bracing frame type electric motor end cap proves through overtesting, compare with bracing frame type electric motor end cap of the prior art, within the axiality of sidewall 1 inner ring and bearing chamber inner ring can be reduced to 0.03mm from 0.1mm, within the circularity of sidewall 1 inner ring can be reduced to 0.05mm from 0.15mm, within air gap between stator and rotor is reduced to 0.2mm from 0.25mm, electric efficiency improves about 3 ~ 5%, other side, sheet metal thickness for processing reduces by more than 20%, and material cost reduces greatly.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of described term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (9)
1. a bracing frame type electric motor end cap, comprise main body, bearing pedestal and support, it is characterized in that: described main body comprises the sidewall of hollow cylindrical and the top cover of annular, described support comprises base plate and the fixed head of integrative-structure, the upper surface that described base plate is fixed on described top cover covers the upper end of described bearing pedestal, described bearing pedestal comprises the outer layer body of hollow cylindrical and the internal layer body of hollow cylindrical, described sidewall, top cover and outer layer body one drawing and forming, the lower end of described sidewall is uncovered, upper end annulus is connected with the outer ring of described top cover, the upper end annulus of described outer layer body is connected with the inner ring of described top cover, the height of the upper end of described outer layer body is equal to or slightly less than the upper end level of described sidewall and described outer layer body is coaxial with described sidewall, the outer wall of described internal layer body is fixedly connected with the inwall of described outer layer body.
2. bracing frame type electric motor end cap as claimed in claim 1, it is characterized in that: described top cover comprises the Part I of annular and the Part II of annular, the Part I of described annular and the Part II of annular are all perpendicular to the axis of described sidewall, the outer ring of the Part I of described annular and the upper end annulus of described sidewall are connected as a single entity, the inner ring of the outer ring of the Part II of described annular and the Part I of described annular be connected as a single entity and the height of the Part II of annular a little less than the height of the Part I of described annular, the inner ring of the Part II of described annular and the upper end annulus of described outer layer body are connected as a single entity, described base plate is fixed on the upper surface of the Part II of described annular, the upper surface of described base plate is a little less than the upper surface flush of the upper surface of the Part I of described annular or the Part I with described annular.
3. bracing frame type electric motor end cap as claimed in claim 2, it is characterized in that: described support also comprises the connecting portion of hollow cylindrical, the outer ring of described base plate is circular and is connected as a single entity with the lower end annulus of described connecting portion, the race diameter of described base plate is roughly the same with the race diameter of the Part II of described annular, described fixed head is annular and the upper end annulus of its inner ring and described connecting portion is connected as a single entity, the outer ring of described fixed head is also provided with the flange of hollow cylindrical, the upper end annulus of described flange and the outer ring of described fixed head is connected as a single entity or the lower end annulus of described flange and the outer ring of described fixed head are connected as a single entity.
4. bracing frame type electric motor end cap as claimed in claim 3, is characterized in that: described fixed head circumferentially offers at least two installing holes.
5. bracing frame type electric motor end cap as claimed in claim 4, is characterized in that: described base plate offers the axis hole coaxial with described bearing pedestal between two parties.
6. the bracing frame type electric motor end cap as described in any one of Claims 1 to 5, is characterized in that: the Part II of described base plate and described annular is welded and fixed or rivets fixing.
7. the bracing frame type electric motor end cap as described in any one of claim 6, is characterized in that: be also provided with a layer insulating between the outer wall of described internal layer body and the inwall of described outer layer body.
8. bracing frame type electric motor end cap as claimed in claim 7, it is characterized in that: the material of described internal layer body is aluminium, engineering plastics or BMC, the material of described insulating barrier is rubber or plastics.
9. bracing frame type electric motor end cap as claimed in claim 8, is characterized in that: the radial thickness of described internal layer body is 2 ~ 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329093.2U CN204597692U (en) | 2015-05-20 | 2015-05-20 | Bracing frame type electric motor end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520329093.2U CN204597692U (en) | 2015-05-20 | 2015-05-20 | Bracing frame type electric motor end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597692U true CN204597692U (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520329093.2U Expired - Fee Related CN204597692U (en) | 2015-05-20 | 2015-05-20 | Bracing frame type electric motor end cap |
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| Country | Link |
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| CN (1) | CN204597692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992394A (en) * | 2017-05-12 | 2023-04-21 | 苏州软石智能装备有限公司 | Annular blowing cooling equipment and air chamber thereof |
-
2015
- 2015-05-20 CN CN201520329093.2U patent/CN204597692U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115992394A (en) * | 2017-05-12 | 2023-04-21 | 苏州软石智能装备有限公司 | Annular blowing cooling equipment and air chamber thereof |
| CN116084036A (en) * | 2017-05-12 | 2023-05-09 | 苏州软石智能装备有限公司 | Annular blowing cooling equipment and air chamber thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160729 Address after: 213162 standard workshop A1, industrial square, science and Technology Industrial Park, Hutang Town, Wujin District, Jiangsu, Changzhou Patentee after: CHANGZHOU LEKVA ELECTRONICS CO., LTD. Address before: 213161 industrial square workshop, Hutang science and Technology Industrial Park, Hutang Town, Wujin District, Changzhou, Jiangsu Patentee before: Changzhou power speed electrically Science and Technology Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180625 Address after: 213161 the standard workshop of Hutang science and Technology Industrial Park Industrial Park, Hutang Town, Wujin District, Changzhou, Jiangsu Patentee after: Changzhou power speed electrically Science and Technology Ltd. Address before: 213162 Jiangsu Hutang city Changzhou Wujin science and Technology Industrial Park industrial workshop standard workshop A1 Patentee before: CHANGZHOU LEKVA ELECTRONICS CO., LTD. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |