CN204145141U

CN204145141U - Motor

Info

Publication number: CN204145141U
Application number: CN201420536403.3U
Authority: CN
Inventors: 黄高周; 王喜; 郭丙春
Original assignee: Foshan Welling Washer Motor Manufacturing Co Ltd
Current assignee: Foshan Welling Washer Motor Manufacturing Co Ltd
Priority date: 2014-09-17
Filing date: 2014-09-17
Publication date: 2015-02-04
Anticipated expiration: 2024-09-17

Abstract

The utility model discloses a kind of motor, comprise: cross section is roughly formed as stator core and two end caps of rectangular shape, described two end caps are located at the front-end and back-end of described stator core respectively, and wherein the cross section of each described end cap is roughly formed as round-shaped.According to motor of the present utility model, by the cross section of two end caps is all set to substantial circular, effectively ensure that the continuity that end cap is processed, and processing after end cap not yielding.

Description

Motor

Technical field

The utility model relates to a kind of technical field of motor manufacture, especially relates to a kind of motor.

Background technology

Point out in correlation technique, the end cap processing continuity of traditional motor is bad, easily distortion after processing, and processing circularity is bad; It is little that end cap and stator core assemble contact-making surface, and location is unstable; End cover structure is not simplified, and there is waste of material; The design of end cap inner surface is rough, and reinforcement protrudes, and easily produces wind and makes an uproar.In addition, after end cap and stator core assemble, stator core can rotate, and affects motor performance.

Utility model content

The utility model is intended at least to solve one of technical problem existed in prior art.For this reason, an object of the present utility model is to propose a kind of motor, and the end cap of described motor is to add man-hour continuity good.

According to motor of the present utility model, comprising: cross section is roughly formed as the stator core of rectangular shape; With two end caps, described two end caps are located at the front-end and back-end of described stator core respectively, and wherein the cross section of each described end cap is roughly formed as round-shaped.

According to motor of the present utility model, by the cross section of two end caps is all set to substantial circular, effectively ensure that the continuity that end cap is processed, and processing after end cap not yielding.

Alternatively, the front-end and back-end of described stator core are stretched in corresponding described end cap respectively, and the outer peripheral face at correspondence four angles of the front-end and back-end of described stator core is formed as the shape suitable with the shape of the inner peripheral surface of corresponding described end cap respectively.

Further alternatively, the outer peripheral face at correspondence four angles of described stator core is formed as the shape suitable with the shape of the inner peripheral surface of corresponding described end cap respectively.

Preferably, the outer peripheral face at correspondence four angles of described stator core is formed as outwardly arc surface respectively.

Further, one of them in described stator core and described end cap is provided with guide vane end stop, another in described stator core and described end cap is formed with stopper slot, and described stopper slot coordinates with described guide vane end stop to prevent described stator core from rotating relative to described end cap.

Alternatively, described guide vane end stop is located on the outer peripheral face of described stator core, and described stopper slot is formed on the inner peripheral surface of described end cap.

Alternatively, described guide vane end stop is two and relative two angles that described two guide vane end stops are respectively adjacent to described stator core are arranged, and described stopper slot is four and in described four stopper slots relative two are all suitable for coordinating with described two guide vane end stops.

Further, each described end cap has at least one through hollow bulb of front and back.

Alternatively, described hollow bulb is the uniform intervals distribution in the circumference of the described end cap of correspondence of multiple and described multiple hollow bulb.

Further, the side away from described stator core of each described end cap is provided with at least one reinforcement on the surface.

Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:

Fig. 1 is the stereogram of the motor according to the utility model embodiment;

Fig. 2 is the profile of the motor shown in Fig. 1;

Fig. 3 is the rearview of the motor shown in Fig. 1;

Fig. 4 is the explosive view of the motor shown in Fig. 1, and stator core and two end caps are wherein only shown;

Fig. 5 a is the stereogram of the stator core shown in Fig. 4;

Fig. 5 b is the front view of the stator core shown in Fig. 5 a;

Fig. 5 c is the enlarged drawing in the A portion that Fig. 5 b centre circle shows;

Fig. 5 d is the end view of the stator core shown in Fig. 5 a;

Fig. 6 a is the stereogram being positioned at the end cap of front side shown in Fig. 4;

Fig. 6 b is the front view of the end cap shown in Fig. 6 a;

Fig. 6 c is the rearview of the end cap shown in Fig. 6 a;

Fig. 7 a is the stereogram being positioned at the end cap of rear side shown in Fig. 4;

Fig. 7 b is the front view of the end cap shown in Fig. 7 a;

Fig. 7 c is the rearview of the end cap shown in Fig. 7 a.

Reference numeral:

100: motor;

1: stator core; 11: centre bore; 12: arc surface;

13: stator link slot; 14: guide vane end stop;

2: front end housing; 21: the first front cover bodies; 22: the second front cover bodies; 23: the first connecting portions; 24: hollow bulb;

221: end cap link slot; 222: stopper slot; 231: reinforcement;

3: rear end cap; 31: the first rear cover bodies; 32: the second rear cover bodies; 33: the second connecting portions;

4: rotor; 5: threaded fastener.

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.

In description of the present utility model, it will be appreciated that, term " " center ", " 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 " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.

In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.

Describe the motor 100 according to the utility model embodiment below with reference to Fig. 1-Fig. 7 c, motor 100 can be series excited machine.In description below the application, be described for series excited machine for motor 100.Certainly, those skilled in the art are appreciated that motor 100 can also be the motor 100 of other type, and are not limited to series excited machine.

As shown in Figure 1 and Figure 4, according to the motor 100 such as series excited machine of the utility model embodiment, comprise stator core 1 and two end caps.

With reference to Fig. 5 a composition graphs 5b and Fig. 5 c, the cross section of stator core 1 is roughly formed as rectangular shape, and stator core 1 is formed with the centre bore 11 being suitable for the rotor 4 holding motor 100, centre bore 11 runs through front end face and the rear end face of stator core 1.Here, it should be noted that, the cross section outer contour shape that " cross section of stator core 1 is roughly formed as rectangular shape " can be understood as stator core 1 is the rectangle on a geometric meaning, namely have four edges, and adjacent both sides is mutually vertical; Such as, or the cross section outer contour shape of stator core 1 is roughly a rectangle, chamfering or round-corner transition between adjacent both sides, or at least one limit in four edges is roughly straightway (bottom and upper segment such as, in Fig. 5 b).

Alternatively, the cross section of stator core 1 roughly can be formed as square shape, also can be rectangular shape.Be appreciated that stator core 1 concrete shape can according to the difference of the type of motor 100 adaptive change, the utility model does not make particular determination to this.

Two end caps are located at the front-end and back-end of stator core 1 respectively.In description below the application, by the end cap that is positioned on front side of stator core 1 referred to as front end housing 2, by the end cap that is positioned on rear side of stator core 1 referred to as rear end cap 3.As shown in Figure 1, Figure 2 and Figure 4, the rear open of front end housing 2, front end housing 2 is located at the front side of stator core 1, and the front side of rear end cap 3 is opened wide, and rear end cap 3 is located at the rear side of stator core 1.

Wherein, with reference to Fig. 3 and Fig. 4 composition graphs 6a-Fig. 7 c, the cross section of each end cap is roughly formed as round-shaped.Specifically, the rear side of front end housing 2 and the front side of rear end cap 3 are all roughly circular, thus, by adopting circular configuration design, ensure that the continuity that end cap is processed most possibly, not yielding after processing, and processing circularity is good.

Here, it should be noted that, the cross section outer contour shape that " cross section of each end cap is roughly formed as round-shaped " can be understood as each end cap is the circle on a geometric meaning, namely when line segment planar rotates a circle around its end points, the track of its another end points; Or the cross section outer contour shape of each end cap is roughly a circle, such as, circle has outwards recessed groove (such as, stopper slot 222 hereinafter), wherein, the size of groove is less compared to the size of circle.

According to the motor 100 such as series excited machine of the utility model embodiment, by the cross section of two end caps is all set to substantial circular, effectively ensure that the continuity that end cap is processed, and processing after end cap not yielding.

The front-end and back-end of stator core 1 are stretched in corresponding end cap respectively, the stability of installing to ensure front end housing 2, between stator core 1 and rear end cap 3.In order to ensure end cap and stator core 1 positioning stablity further, the contact area of stator core 1 and end cap can be increased, such as, the outer peripheral face at correspondence four angles of the front-end and back-end of stator core 1 is formed as the shape suitable with the shape of the inner peripheral surface of corresponding end cap respectively, that is, on the outer peripheral face of the front end of stator core 1, the part at corresponding four angles is formed as the shape such as arc surface 12 suitable with the shape of the inner peripheral surface of front end housing 2, on the outer peripheral face of the rear end of stator core 1, the part at corresponding four angles is formed as the shape such as arc surface 12 suitable with the shape of the inner peripheral surface of rear end cap 3.

Further, the outer peripheral face at correspondence four angles of stator core 1 is formed as the shape suitable with the shape of the inner peripheral surface of corresponding end cap respectively, now not only the outer peripheral face at correspondence four angles of the rear and front end of stator core 1 is formed as the shape suitable with the shape of the inner peripheral surface of corresponding end cap, and the outer peripheral face part at correspondence four angles between the front-end and back-end of stator core 1 is also formed as the shape suitable with the shape of the inner peripheral surface of corresponding end cap.Thus, shorten process time, and save material, thus reduce cost.Preferably, the outer peripheral face at correspondence four angles of stator core 1 is formed as outwardly arc surface 12 respectively.

Thus, after front end housing 2 and rear end cap 3 are seated with stator core 1 respectively, four angles place of stator core 1 rear and front end contacts with the corresponding part of front end housing 2 with the inner peripheral surface of rear end cap 3 respectively, and contact area is comparatively large, thus improves the position stability between end cap and stator core 1.

According to further embodiment of the present utility model, one of them in stator core 1 and end cap is provided with guide vane end stop 14, another in stator core 1 and end cap has and forms stopper slot 222.Here following two kinds of situations are comprised: the first, guide vane end stop 14 is located on stator core 1, and stopper slot 222 is formed on end cap; The second, guide vane end stop 14 is located on end cap, and stopper slot 222 is formed on stator core 1.Stopper slot 222 coordinates with guide vane end stop 14 to prevent stator core 1 from rotating relative to end cap.

As shown in Fig. 5 b and Fig. 6 a, guide vane end stop 14 is located on the outer peripheral face of stator core 1, the shape of cross section of guide vane end stop 14 is roughly triangle, guide vane end stop 14 is from the outwardly formation of the outer peripheral face of stator core 1, now guide vane end stop 14 is a part for stator core 1, and certainly, guide vane end stop 14 and stator core 1 also can be respectively two separate parts, and individually processing and manufacturing, then to be formed as one structure by modes such as welding.Stopper slot 222 is formed on the inner peripheral surface of end cap, and stopper slot 222 can inwardly concave by a part for the inner peripheral surface of end cap the shape of cross section forming stopper slot 222 and also be roughly triangle to be suitable for holding guide vane end stop 14.Thus, by coordinating of guide vane end stop 14 and stopper slot 222, rotate shifting phenomena after can effectively avoiding stator core 1 to assemble, thus improve the performance of motor 100.

Wherein, the number of the guide vane end stop 14 of stator core 1 and the stopper slot 222 of end cap can require specific design according to practical set, can be identical, also can be different.Such as, guide vane end stop 14 is two and two guide vane end stops 14 are respectively adjacent to two relative angles of stator core 1 (such as, the lower left corner in Fig. 5 b and Fig. 6 c and the upper right corner) arrange, stopper slot 222 is four, four stopper slots 222 are respectively adjacent to four end cap link slots 221 and arrange, and in four stopper slots 222 relative two are all suitable for coordinating with two guide vane end stops 14.Thus, no matter stator core 1 front is assembled or reverse side assembling, and two guide vane end stops 14 on stator core 1 all can be engaged in two stopper slots 222 at diagonal angle on end cap.

Certainly, guide vane end stop 14 and stopper slot 222 can also be respectively four, four guide vane end stops 14 are respectively adjacent to four angles settings of stator core 1, four stopper slots 222 are respectively adjacent to four end cap link slots 221 and arrange, and guide vane end stop 14 corresponding between two and stopper slot 222 preferably symmetrical about the perpendicular of motor 100, rotate shifting phenomena after can preventing stator core 1 from assembling so better, thus improve the performance of motor 100 further.

Front end housing 2, stator core 1 can be connected by threaded fastener 5 such as bolt with rear end cap 3, installation, convenient disassembly, and when any one parts damages in front end housing 2, stator core 1 and rear end cap 3, the parts of damage can be pulled down, and replace upper new parts, thus save cost.Certainly, front end housing 2, stator core 1 and rear end cap 3 also can adopt other connected mode, and the utility model does not do concrete restriction to this.

Specifically, front end housing 2, stator core 1 is connected by four bolts with rear end cap 3, four bolts lay respectively at four angles place of stator core 1, four arc surfaces 12 of stator core 1 are all formed with the stator link slot 13 inwardly concaved, the inner peripheral surface of each end cap is formed with four the end cap link slots 221 be spaced apart from each other, each end cap link slot 221 is formed from the inner peripheral surface of the end cap of correspondence is outwards recessed, four end cap link slots 221 are corresponding with before and after four stator link slots 13, and from front to back or when seeing from back to front, four end cap link slots 221 and four stator link slots 13 form the complete circular connecting hole of a cardinal principle.

During installation, coordinate with bolt thread after four bolts, four end cap link slots 221 respectively from back to front successively through four stator link slots 13 of four end cap link slots 221 of rear end cap 3, stator core 1, front end housing 2, thus front end housing 2, stator core 1 and rear end cap 3 can link into an integrated entity securely.Certainly, coordinate with bolt thread after four end cap link slots 221 that four bolts also can be distinguished from front to back successively through four stator link slots 13 of four end cap link slots 221 of front end housing 2, stator core 1, rear end cap 3.

Further, each end cap has at least one through hollow bulb 24 of front and back.Alternatively, hollow bulb 24 is the uniform intervals distribution in the circumference of the end cap of correspondence of multiple and multiple hollow bulb 24.Be appreciated that the number of hollow bulb 24 can specific design according to actual needs, the utility model does not do concrete restriction to this.

As shown in Fig. 6 a-Fig. 6 c, front end housing 2 comprises the first front cover body 21, second front cover body 22 and four the first connecting portions 23, first front cover body 21 is positioned at the front side of the second front cover body 22, and the cross-sectional area of the first front cover body 21 is less than the cross-sectional area of the second front cover body 22, second front cover body 22 is roughly circular, four the first connecting portions 23 are connected between the first front cover body 21 and the second front cover body 22, and four angles place of the corresponding stator core 1 of one end cardinal principle be connected with the second front cover body 22 of four the first connecting portions 23.Wherein, be spaced apart from each other to limit hollow bulb 24 between two often adjacent the first connecting portions 23.

As shown in Fig. 7 a-Fig. 7 c, rear end cap 3 comprises the first rear cover body 31, second rear cover body 32 and four the second connecting portions 33, first rear cover body 31 is positioned at the rear side of the second rear cover body 32, and the cross-sectional area of the first rear cover body 31 is less than the cross-sectional area of the second rear cover body 32, second rear cover body 32 is roughly circular, four the second connecting portions 33 are connected between the first rear cover body 31 and the second rear cover body 32, and four angles place of the corresponding stator core 1 of one end cardinal principle be connected with the second rear cover body 32 of four the second connecting portions 33.Wherein, hollow bulb 24 is limited respectively between adjacent two the second connecting portions 33 of two the second connecting portions 33 that top is adjacent and below.

Thus, force analysis is used according to end cap, appropriate design end cover structure, when ensureing force request, by arranging hollow bulb 24 on end cap, end cover structure is simplified, thus efficiently avoid waste of material, in other words, when ensureing that end cover structure requires, the material cost of end cap has been saved.

Further, the side surface (i.e. outer surface) away from stator core 1 of each end cap is provided with at least one reinforcement 231.With reference to Fig. 4 and Fig. 6 a, the front surface of front end housing 2 is provided with multiple reinforcement 231, specifically, the side away from stator core 1 of each first connecting portion 23 is respectively equipped with three reinforcements 231 on the surface, wherein two reinforcements 231 lay respectively at the both sides of the Width of the first corresponding connecting portion 23, and the two ends of these two reinforcements 231 extend to the first front cover body 21 and the second front cover body 22 respectively, another reinforcement 231 is located between these two reinforcements 231, the length of another reinforcement 231 above-mentioned is less than the length of above-mentioned two reinforcements 231, and another reinforcement 231 above-mentioned is positioned at the side of the first front cover body 21 and one end extends to the first front cover body 21.

With reference to Fig. 4 and Fig. 7 a, the front surface of front end housing 2 is provided with multiple reinforcement 231, specifically, the side away from stator core 1 of each first connecting portion 23 is respectively equipped with two reinforcements 231 on the surface, wherein two reinforcements 231 lay respectively at the both sides of the Width of the first corresponding connecting portion 23, and the two ends of these two reinforcements 231 extend to the first front cover body 21 and the second front cover body 22 respectively.

Thus, by being located at by reinforcement 231 on the outer surface of corresponding end cap, while guarantee is stressed, improve the slickness of cover internal, and improve motor 100 wind and make an uproar.

Be all known according to other configuration examples of the motor 100 such as series excited machine of the utility model embodiment to those skilled in the art as rotor 4 grade and operation, be not described in detail here.

In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " 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 above-mentioned 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.

Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.

Claims

1. a motor, is characterized in that, comprising:

Cross section is roughly formed as the stator core of rectangular shape; With

Two end caps, described two end caps are located at the front-end and back-end of described stator core respectively, and wherein the cross section of each described end cap is roughly formed as round-shaped.

2. motor according to claim 1, it is characterized in that, the front-end and back-end of described stator core are stretched in corresponding described end cap respectively, and the outer peripheral face at correspondence four angles of the front-end and back-end of described stator core is formed as the shape suitable with the shape of the inner peripheral surface of corresponding described end cap respectively.

3. motor according to claim 2, is characterized in that, the outer peripheral face at correspondence four angles of described stator core is formed as the shape suitable with the shape of the inner peripheral surface of corresponding described end cap respectively.

4. motor according to claim 3, is characterized in that, the outer peripheral face at correspondence four angles of described stator core is formed as outwardly arc surface respectively.

5. motor according to claim 2, it is characterized in that, one of them in described stator core and described end cap is provided with guide vane end stop, another in described stator core and described end cap is formed with stopper slot, and described stopper slot coordinates with described guide vane end stop to prevent described stator core from rotating relative to described end cap.

6. motor according to claim 5, is characterized in that, described guide vane end stop is located on the outer peripheral face of described stator core, and described stopper slot is formed on the inner peripheral surface of described end cap.

7. motor according to claim 6, it is characterized in that, described guide vane end stop is two and relative two angles that described two guide vane end stops are respectively adjacent to described stator core are arranged, and described stopper slot is four and in described four stopper slots relative two are all suitable for coordinating with described two guide vane end stops.

8. motor according to claim 1, is characterized in that, at least one hollow bulb through before and after each described end cap has.

9. motor according to claim 8, is characterized in that, described hollow bulb is the uniform intervals distribution in the circumference of the described end cap of correspondence of multiple and described multiple hollow bulb.

10. the motor according to any one of claim 1-9, is characterized in that, the side away from described stator core of each described end cap is provided with at least one reinforcement on the surface.