CN210744873U - Insulating frame, stator and motor of motor - Google Patents

Abstract

The utility model discloses an insulating frame, stator and motor of motor, insulating frame includes: the frame body and protect line portion, the axial one side of the frame body is opened in order to inject and protects the yoke groove and protect the tooth groove, protect the yoke groove and be used for overcoat stator core's yoke portion, protect the radial outer end of tooth groove with protect the tooth portion of yoke groove intercommunication with overcoat stator core, protect line portion an organic whole and be formed in on the frame body, be equipped with the mounting hole that supplies the wiring head of winding lead wire and power cord to fill in on the line portion of protecting. From this, through setting up the line protecting part with frame body integrated into one piece, replace current wiring cover through line protecting part, not only reduced the assembly process (need not to carry out the assembly of wiring cover promptly), improved assembly efficiency, reduced assembly cost, need not to set up the wiring cover moreover, saved the material, reduced material cost.

Description

Insulating frame, stator and motor of motor

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to an insulating frame, stator and motor of motor are designed.

Background

In the prior art, a motor includes: a stator and a rotor, the stator comprising: the stator core, locate stator core upper insulation frame, stator winding, insert in the wiring cover in the winding groove, power cord subassembly, parts such as wire clamp constitute.

And then, the stator core is equally divided into two half stator cores, the half stator cores and the insulating frame are assembled, then the two half stator cores and the insulating frame are respectively wound with wires (wound with stator windings), and finally the two half stator cores wound with the stator windings and the insulating frame are assembled into a semi-finished stator.

Wherein, the assembly process comprises the following steps: and respectively inserting the wiring sleeves into designated slots of the semi-finished stator for fixation, then respectively connecting the main heights and the auxiliary heights of the power lines with the enameled wires of the semi-finished stator in each phase sequence by soldering, respectively inserting the connected power lines into the corresponding wiring sleeves, and fixing the other ends of the power lines through wire clamps.

That is, the conventional stator processing method has the following technical problems:

(1) due to the use of the wiring sleeve component, the material cost is increased;

(2) the wiring sleeve is inserted into the corresponding winding groove, manual assembly is needed, assembly cost is improved, and assembly efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an insulating frame of motor, insulating frame's assembly efficiency is higher, manufacturing cost is lower.

The utility model discloses a stator with above-mentioned insulating frame is further proposed.

The utility model also provides a motor of having above-mentioned stator.

According to the utility model discloses insulating frame of motor of first aspect embodiment includes: the frame body and protect line portion, the axial one side of the frame body is opened in order to inject and protects the yoke groove and protect the tooth groove, protect the yoke groove and be used for overcoat stator core's yoke portion, protect the radial outer end of tooth groove with protect the tooth portion of yoke groove intercommunication with overcoat stator core, protect line portion an organic whole and be formed in on the frame body, be equipped with the mounting hole that supplies the wiring head of winding lead wire and power cord to fill in on the line portion of protecting.

According to the utility model discloses insulating frame through setting up and frame body integrated into one piece's protecting wire portion, replaces current wiring cover through protecting wire portion, has not only reduced assembly process (need not to carry out the assembly of wiring cover promptly), has improved assembly efficiency, has reduced assembly cost, need not to set up the wiring cover moreover, has saved the material, has reduced material cost.

According to some embodiments of the utility model, the wire protecting part is rectangular shape, the wire protecting part opens in order to form in length direction one end the mounting hole.

In some embodiments, one end of the mounting hole is an opening, and the other end is a bottom wall, and the area of the opening of the mounting hole is larger than the area of the bottom of the mounting hole.

Further, the inner diameter of the bottom of the mounting hole is larger than or equal to the outer diameter of the power line.

According to some embodiments of the utility model, be equipped with on the wire protecting part with the exhaust hole of mounting hole intercommunication.

In some embodiments, the wire guard is chamfered along an opening of the mounting hole; and chamfers are arranged at the corners of the outer surface of the wire protecting part.

In some embodiments, the yoke slot is semi-circular arc shaped.

Optionally, the wire protecting part is arranged on an end face of the frame body or on an outer peripheral surface of the frame body; the line protecting part is arranged corresponding to the yoke protecting groove and/or the tooth protecting groove.

According to the utility model discloses stator of second aspect embodiment includes: the stator core comprises a yoke portion and a plurality of tooth portions, the tooth portions are connected to the yoke portion, a winding slot is defined between the adjacent tooth portions, the insulating frame is the insulating frame of the motor in the embodiment, the insulating frame is sleeved on the stator core, and at least part of the stator winding is wound on the winding slot.

According to the utility model discloses motor of third aspect embodiment includes: the stator described in the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an angle of an insulating frame according to an embodiment of the invention;

fig. 2 is a schematic view of another angle of an insulating frame according to an embodiment of the invention;

fig. 3 is a schematic view of a stator according to an embodiment of the invention.

Reference numerals:

the stator (1000) is provided with a stator,

an insulation frame 100, a stator core 200, a stator winding 300, a wire clamp 400, a power line 500,

the frame body 110, the yoke protecting groove 111, the tooth protecting groove 112, the wire protecting part 120, the mounting hole 121, the bottom wall 1211 and the exhaust hole 122.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

An insulation frame 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3.

As shown in fig. 1 and 2, an insulation frame 100 of a motor according to an embodiment of the first aspect of the present invention includes: a frame body 110 and a wire guard 120.

One axial side of the frame body 110 is open to define a yoke protecting groove 111 and a tooth protecting groove 112, the yoke protecting groove 111 is used for sheathing a yoke part of the stator core 200, the radial outer end of the tooth protecting groove 112 is communicated with the yoke protecting groove 111 to sheath a tooth part of the stator core 200, so that the yoke part of the stator core 200 and the tooth part of the stator core 200 are respectively insulated and protected through the yoke protecting groove 111 and the tooth protecting groove 112, the wire protecting part 120 is integrally formed on the frame body 110, and the wire protecting part 120 is provided with a mounting hole 121 for plugging a winding lead and a connector lug of the power cord 500.

It should be noted that the region where the winding lead and the power line 500 are electrically connected is formed as a connector lug, the selective power supply to the winding is realized through the electrical connection between the power line 500 and the winding lead, and the connector lug is inserted into the wire protecting portion 120 to be fixed, so that the wire protecting portion 120 and the frame body 110 are integrally formed by replacing a wire sleeve in the prior art with the wire protecting portion 120 on the premise of effectively improving the protection of the connector lug.

According to the utility model discloses insulating frame 100, through setting up the wire protecting portion 120 with frame body 110 integrated into one piece, replace current wiring cover through wire protecting portion 120, not only reduced the assembly process (need not to carry out the assembly of wiring cover promptly), improved assembly efficiency, reduced assembly cost, need not to set up the wiring cover moreover, saved the material, reduced material cost.

It will be understood that the axial and radial directions referred to in this embodiment are in axial and radial alignment with the axis of the machine, i.e. the axial and radial directions of the machine as a whole are incorporated by reference. The shape of the insulating frame 100 of the present embodiment is not limited to the circular shape shown in fig. 1 and 2, and it matches the outer contour of the stator 1000 of the motor, and in the embodiment in which the outer contour of the stator 1000 is a polygon, the outer contour of the insulating frame 100 is also substantially a polygon.

The inward and outward directions mentioned in the present embodiment mean: the direction towards the axis of the motor housing is inward and the direction away from the axis of the motor is outward.

In the specific embodiment shown in fig. 2, the wire guard 120 has a long bar shape, and one end of the wire guard 120 is open in the length direction to form a mounting hole 121. That is, the grommet 120 is fixed to the frame body 110, and the mounting hole 121 is formed at one end of the grommet 120 in the longitudinal direction.

Thus, the connector lug can extend into the wire protection part 120 through the mounting hole 121, so that the connector lug can be mounted in the wire protection part 120 more simply and conveniently, and one end of the wire protection part 120 in the length direction is formed into the mounting hole 121, so that the length of the connector lug inserted into the wire protection part 120 is longer, and the fixing stability and the protection effect of the wire protection part 120 on the connector lug can be effectively improved.

In some embodiments, one end of the mounting hole 121 is an opening, and the other end is a bottom wall 1211, the opening of the mounting hole 121 has an area larger than the area of the bottom wall 1211 of the mounting hole 121, and the inner diameter of the bottom wall 1211 of the mounting hole 121 is equal to or larger than the outer diameter of the power cord 500.

Specifically, the winding lead is constructed as an enameled wire, a thin enameled wire (having a diameter of about 0.16 mm) is wound around the power supply wire 500 and is welded (e.g., soldered) to the power supply wire 500 to construct a terminal, and the area of the opening of the mounting hole 121 is made larger than the area of the bottom wall 1211 of the mounting hole 121, so that the insertion of the terminal into the mounting hole 121 is more simple and convenient.

In addition, in an embodiment in which the inner diameter of the bottom wall 1211 of the mounting hole 121 is equal to the outer diameter of the power cord 500, the inner diameter of the bottom wall 1211 of the mounting hole 121 is made equal to the outer diameter of the power cord 500, so that the terminal inserted into the bottom wall 1211 of the mounting hole 121 is at least partially interference-fitted with the mounting hole 121, to further improve the fixing stability of the terminal in the mounting hole 121.

It will be appreciated that the connector lug comprises: the power cord 500 and the enamel wire wound on the power cord 500, so that the outer diameter of the connector lug is slightly larger than the outer diameter of the power cord 500, and the inner diameter of the bottom wall 1211 of the mounting hole 121 is consistent with the outer diameter of the power cord 500, so that the outer diameter is larger than at least part of the interference fit of the connector lug of the power cord 500 and the mounting hole 121.

Referring to fig. 2, the bottom wall 1211 of the mounting hole 121, that is, the bottom wall of the wire guard 120, and the bottom wall of the wire guard 120 refer to: the wire guard 120 faces away from a sidewall of an end of the opening of the mounting hole 121.

Referring to fig. 2, according to some embodiments of the present invention, the wire guard portion 120 is provided with an air vent 122 communicating with the mounting hole 121. Thus, in the process of inserting the connector lug into the mounting hole 121, the inside of the wire protecting part 120 can be consistent with the atmospheric pressure of the external environment through the vent hole 122, so that the connector lug can be mounted in the mounting hole 121 more simply and conveniently.

It will be appreciated that the vent hole 122 is provided on an end of the wire guard 120 facing away from the opening of the mounting hole 121.

In some embodiments, the wire guard 120 is chamfered along the opening of the mounting hole 121; the outer surface corners of the wire guard portion 120 are provided with chamfers. Thus, the outer wall surface of the wire guard 120 is made smoother to prevent the wire guard 120 from damaging at least a portion of the winding lead (enameled wire) located outside the wire guard 120.

In some embodiments, the yoke slot 111 is semi-circular arc shaped. Specifically, in some embodiments, the stator 1000 is configured to be circular, the yoke slots 111 are configured to be semi-circular, and the two yoke slots 111 are oppositely arranged and connected to insulate and protect the yoke of the circular stator 1000.

Of course, the shape of the yoke slots 111 according to the embodiment of the present invention is not limited thereto, and in other embodiments, the stator 1000 is configured as a polygon, the corresponding yoke slots 111 are configured as a polygon (for example, the stator 1000 is configured as a hexagon, the corresponding yoke slots 111 are configured as two quadrangles, and the shape of the hexagon is substantially the same as the outline of the stator 1000 after splicing), and the two yoke slots 111 configured as a polygon are oppositely arranged to connect the yoke of the next pair of polygons of stators 1000 for insulation protection.

It is understood that the grommet 120 is provided on an end surface of the frame body 110 or on an outer peripheral surface of the frame body 110; the wire guard portion 120 is disposed corresponding to the yoke slot 111 and/or the tooth guard slot 112.

In other words, the wire guard 120 is selectively provided on the end surface of the frame body 110 or on the outer circumferential surface of the frame body 110, and when the wire guard 120 is provided on the end surface of the frame body 110, in some embodiments, the wire guard 120 is provided corresponding to the yoke slot 111; in other embodiments, the wire guard portion 120 is disposed corresponding to the tooth guard groove 112; in still other embodiments, the wire guard portion 120 is disposed between the yoke protecting groove 111 and the tooth protecting groove 112, and at least a portion of the wire guard portion corresponds to the yoke protecting groove 111, and another portion of the wire guard portion corresponds to the tooth protecting groove 112.

As shown in fig. 3, a stator 1000 according to an embodiment of the present invention includes: the stator core 200, the insulating frame 100 disposed on the stator core 200, and the stator winding 300, wherein the stator core 200 has a yoke portion and a plurality of teeth, the plurality of teeth are connected to the yoke portion, a winding slot is defined between adjacent teeth, the insulating frame 100 is the insulating frame 100 of the motor in the above embodiment, the insulating frame 100 is sleeved on the stator core 200, and the stator winding 300 is at least partially wound on the winding slot.

Specifically, the yoke protecting groove 111 of the insulating frame 100 is connected to the yoke of the stator core 200, the tooth protecting groove 112 is connected to the tooth of the stator core 200, the stator winding 300 is wound in the winding groove, and the terminal formed by fixing the winding lead to the power line 500 is inserted into the wire protecting portion 120, so that the other end of the power line 500 is fixed by the wire clamp 400 and selectively connected to the power source.

According to the stator 1000 of the embodiment of the present invention, on one hand, the distance between the wire protecting portion 120 and the wire clamp 400 is shorter than the distance between the wire sleeve and the wire clamp 400 in the prior art, so that the power line 500 is conveniently fixed without further fixing the power line 500 through other components (for example, without using an adhesive tape); on the other hand, a wiring sleeve is not required to be arranged in each winding slot, so that the slot fullness rate in each winding slot is the same; and when the stator 1000 is injected subsequently, no wiring sleeve is arranged in the stator 1000, and processing defects such as injection molding missing wiring sleeves and the like do not need to be considered.

Note that the slot fill factor is a ratio of the space occupied by the coil after the coil is placed in the slot.

According to the utility model discloses motor includes: the stator 1000 in the above embodiment.

According to the utility model discloses the motor adopts above-mentioned stator 1000, not only can reduce the manufacturing cost of motor, improve production efficiency, the quality of the motor after the assembly is accomplished is better moreover, in motor design process, need not to consider the influence of the full rate in groove of each wire winding groove to the motor performance.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An insulating frame for an electrical machine, comprising: the frame body and protect line portion, the axial one side of the frame body is opened in order to inject and protects the yoke groove and protect the tooth groove, protect the yoke groove and be used for overcoat stator core's yoke portion, protect the radial outer end of tooth groove with protect the tooth portion of yoke groove intercommunication with overcoat stator core, protect line portion an organic whole and be formed in on the frame body, be equipped with the mounting hole that supplies the wiring head of winding lead wire and power cord to fill in on the line portion of protecting.

2. The insulation frame of an electric machine according to claim 1, wherein the wire guard is elongated, and one end of the wire guard is open in a length direction to form the mounting hole.

3. The insulation frame of an electric machine according to claim 1, wherein one end of the mounting hole is an opening and the other end is a bottom wall, and an area of the opening of the mounting hole is larger than an area of the bottom wall of the mounting hole.

4. The insulation frame of an electric machine according to claim 3, wherein an inner diameter of a bottom wall of the mounting hole is equal to or greater than an outer diameter of the power supply wire.

5. The insulation frame of an electric machine according to claim 1, wherein the wire guard is provided with a vent hole communicating with the mounting hole.

6. The insulation frame of an electric machine according to claim 1, wherein the wire guard is chamfered along an opening of the mounting hole; and chamfers are arranged at the corners of the outer surface of the wire protecting part.

7. The insulation frame for an electric machine according to claim 1, wherein the yoke slot is semi-circular arc shaped.

8. The insulation frame of an electric machine according to any one of claims 1 to 7, wherein the wire guard portion is provided on an end face of the frame body or on an outer peripheral surface of the frame body; the line protecting part is arranged corresponding to the yoke protecting groove and/or the tooth protecting groove.

9. A stator, comprising: the motor comprises a stator core, an insulating frame and a stator winding, wherein the insulating frame and the stator winding are arranged on the stator core, the stator core is provided with a yoke part and a plurality of tooth parts, the tooth parts are connected onto the yoke part, a winding slot is defined between every two adjacent tooth parts, the insulating frame is the insulating frame of the motor according to any one of claims 1-8, the insulating frame is sleeved on the stator core, and the stator winding is at least partially wound on the winding slot.

10. An electrical machine comprising a stator according to claim 9.

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