CN111953112A - Winding framework and motor stator - Google Patents
Winding framework and motor stator Download PDFInfo
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- CN111953112A CN111953112A CN202010778871.1A CN202010778871A CN111953112A CN 111953112 A CN111953112 A CN 111953112A CN 202010778871 A CN202010778871 A CN 202010778871A CN 111953112 A CN111953112 A CN 111953112A
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- winding
- positioning
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- 238000004804 winding Methods 0.000 title claims abstract description 61
- 238000009826 distribution Methods 0.000 claims abstract description 12
- 230000002452 interceptive effect Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001746 injection moulding Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/12—Machines characterised by the bobbins for supporting the windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The invention provides a winding framework and a motor stator, relates to the field of motors, and solves the technical problems that a power line connected with a winding on the winding framework is poor in wiring and easy to interfere with other structures. The winding framework comprises a framework body with a stator inner cavity, wherein a positioning part and slots for fixing power line wiring terminals are formed in the framework body, at least one positioning part is distributed beside each slot, and the positioning part at a set position is matched with the positioning part to fasten a power line body between the periphery of the stator inner cavity and the periphery of the framework body; the motor stator comprises the winding framework; according to the invention, the slots and the positioning parts are constructed on the framework body, the slots can fix the wiring ends of the power lines, at least one positioning part is distributed beside each slot, the distribution structure can ensure that the power lines are tensioned and fixed in the area between the periphery of the inner cavity of the stator and the periphery of the framework body, the power lines are prevented from interfering with the inner cavity of the stator while being fastened, and the good wiring of the power lines is ensured.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a winding framework and a motor stator.
Background
The motor stator consists of three parts, namely a stator iron core, a winding and a winding framework. The stator core is embedded into a stator inner cavity of the winding frame, and the winding is wound on the winding frame.
The external driving motor of direct current iron shell mainly adopts built-in circuit board welded mode to realize the wiring and the fixed of multiphase winding and power cord, realizes walking the line through circuit board itself and need not worry the power cord and walk the bad problem of line, nevertheless because built-in PCB circuit board cost is higher relatively, this kind of wiring mode has improved the cost of motor complete machine.
The direct-current plastic package motor is characterized in that a wiring terminal is inserted into a framework for welding wiring, the plastic package structure and a wire clip are utilized for fixing a power line and a winding outgoing line, the power line is fixed through the wire clip, the power line is difficult to be wound on the outer circle of the upper end face of the framework, interference between the power line and the inner cavity of a stator is easy to occur, and the scheme is not suitable for wiring of an iron shell structure motor.
The applicant has found that the prior art has at least the following technical problems: the above two wiring modes can not realize the welding and the fixing of the winding and the power line by the motor winding framework structure so as to ensure the wiring of the power line.
Disclosure of Invention
The invention aims to provide a winding framework and a motor stator, and aims to solve the technical problems that power lines connected with windings on the winding framework are poor in wiring and easy to interfere with other structures in the prior art; the technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a winding framework, which comprises a framework body with a stator inner cavity, wherein a positioning part and a slot for fixing a wiring terminal are constructed on the framework body, and the winding framework comprises:
and at least one positioning part is distributed beside each slot and used for tensioning and fixing a power line connected with the wiring terminal to the position between the periphery of the inner cavity of the stator and the periphery of the framework body.
Preferably, the positioning portion is a binding hole defined on the outer periphery of the end face of the frame body.
Preferably, the binding hole is positioned on the power line outlet side of the slot closest to the binding hole.
Preferably, the periphery of the end face of the framework body is connected in a staggered manner in the radial direction to define the binding hole in an open shape.
Preferably, the slot is limited on the periphery of the end face of the framework body and is arranged at intervals with the positioning part.
Preferably, the number s of the slots1N × m, the number s of the positioning portions2N is a positive integer greater than or equal to 0, n is the number of the slots and the value of n is equal to the number of terminals externally connected with the power line by the single-phase winding, and m is the number of winding phases.
Preferably, one positioning portion is distributed beside each slot, and the rest positioning portions are arranged in parallel with the positioning portion for fixing the multi-phase power line.
Preferably, the spacing included angle between the positioning parts arranged in parallel is alpha, and alpha is more than 5 degrees and less than 15 degrees.
Preferably, the included angle between the slot and the positioning part closest to the slot is beta, and beta is more than 10 degrees and less than 25 degrees.
Preferably, the distribution angle γ of all the positioning portions adjacent to the insertion groove satisfies 40 ° < γ < 75 °.
Preferably, the distribution angle γ of all the positioning parts adjacent to the slot and the distribution angle γ of the stator inner cavity are equalInner diameter d1The inner diameter d of the yoke part of the frame body2The distance L between the connecting line of the positioning parts arranged at intervals of the slots and the axis of the inner cavity of the stator meets the following relation:
L–ζ＝d2×cos(γ/2)–ζ>d1and/2, wherein zeta is the calculated compensation amount.
Preferably, the skeleton body includes last skeleton and the lower skeleton that is connected, the slot with location portion is restricted in on the last skeleton.
The embodiment also provides a motor stator, which comprises the winding framework.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the winding framework provided by the invention, the slots and the positioning parts are constructed on the framework body, the slots can fix the wiring ends of the power lines, for example, the slots are matched with the wiring terminals to realize the welding fixation of the multiphase winding outgoing lines and the power lines, and the distribution structure of the positioning parts can tighten and fix the power lines in the area between the periphery of the inner cavity of the stator and the periphery of the framework body, so that the power lines are fastened, the interference of the power lines and the inner cavity of the stator is prevented, and the good routing of the.
2. The motor stator provided by the invention has the winding framework, so that the wiring end of the power line can be connected and fixed with the winding, the interference between the power line wiring and the inner cavity of the stator is prevented, a built-in circuit board is not needed, the cost of the whole machine is reduced, and the service performance of the product is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a top view of a bobbin of the present invention;
FIG. 2 is an isometric view of the bobbin of the present invention;
FIG. 3 is a top view of the bobbin wiring assembly of the present invention;
FIG. 4 is a view of a binding hole of a power cord of the bobbin of the present invention;
FIG. 5 is a side view of the bobbin wiring assembly of the present invention;
fig. 6 is an exploded view of the bobbin wiring assembly of the present invention.
In figure 1, a skeleton body; 11. the winding wire outlet position; 12. an inner cavity of the stator; 2. a slot; 3. binding holes; 301. reserving a binding hole; 4. a wiring terminal; 5. a winding; 51. a wire outlet joint; 6. a power line; 7. binding a belt; 8. and (7) soldering tin.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the equipment or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example 1
Referring to fig. 1 to 6, the present embodiment provides a bobbin, which includes a bobbin body 1 having a stator cavity 12, the stator cavity 12 is used for accommodating a stator core, a positioning portion and a slot 2 for fixing a terminal of a power cord 6 are configured on the bobbin body 1, wherein:
at least one positioning part is distributed beside each slot 2, and the positioning part at a set position can be matched with the power line 6 to fasten the line body of the power line at a position between the periphery of the inner cavity 12 of the stator and the periphery of the framework body 1 (as shown in figures 3 and 5).
In order to fix the power line terminal, the slot 2 can be matched with the terminal 4 to connect and fix the terminal of the power line 6 and the outlet end of the winding 5. As shown in fig. 1 to 3, the slot 2 in the present embodiment is disposed near the winding outlet position 11, and the connection terminal 4 for connecting the winding outlet connector 51 and the power line 6 is inserted into the slot 2.
Each positioning part is arranged beside each slot 2, and the positioning parts at the set positions can be selected according to the actual conditions such as the phase number of the windings and the like, so that the power line 6 is ensured not to interfere with the stator inner cavity 12 in each condition.
The wire winding skeleton of this embodiment, through construct slot 2 and location portion on skeleton body 1, slot 2 realizes 5 outgoing lines of heterogeneous winding and power cord 6's welded fastening with binding post 4 cooperation, and the distribution structure of location portion can fix the power cord 6 taut region between stator inner chamber 12 periphery and skeleton body 1 periphery, prevent power cord 6 and stator inner chamber interference when realizing the fastening of power cord 6, it is good to guarantee that power cord 6 walks the line, tensile strength appears in improvement power cord 6.
In order to prevent the power line 6 from being poorly routed, the line body of the power line 6 should be tensioned as much as possible between the periphery of the inner cavity of the stator and the periphery of the framework body 1, and be as close as possible to but not beyond the periphery of the framework body 1; in order to achieve the above object, as an alternative embodiment, referring to fig. 1 to 6, the positioning portion in the present embodiment is a binding hole 3 defined on the outer periphery of the end face of the frame body 1.
In this embodiment, the frame body 1 may be formed by injection molding of an insulating material through a mold, and the binding hole 3 is formed by mold opening and integral molding during manufacturing. The binding hole 3 can be matched with a binding belt 7 to fasten the power line 6 on the periphery of the end face of the framework body 1. The mode of directly injecing the ligature hole 3 on skeleton body 1 need not unnecessary connection structure and guarantees structural strength, simplifies forming process.
In order to ensure the outgoing tensile strength of the power cord 6 and prevent the power cord 6 from interfering with other structures, as an alternative embodiment, the binding hole 3 is located on the outgoing side of the power cord 6 of the slot 2 closest thereto. As shown in figure 3, the power line 6 is welded with the wiring terminal 4 in the slot 2 and then is fastened by the binding hole 3 and the binding belt 7 on the outgoing side, so that the binding hole 3 is ensured to play a good positioning role, and the power line 6 is prevented from being loosened to influence other structures.
In order to facilitate the construction of the lashing holes 3 when the skeleton body 1 is manufactured, as an alternative embodiment, referring to fig. 4, the peripheries of the end surfaces of the skeleton body 1 are connected in a radially offset manner to define the lashing holes 3 in an open shape.
As shown in fig. 2, the banding hole 3 in the present embodiment is a rectangular opening. By adopting the binding holes 3 with the structural form, when the framework body 1 is opened, only an upper mold and a lower mold are required to be directly inserted to form a framework injection molding cavity, a side mold is not required, and mold opening manufacturing is simplified; and the binding holes 3 are used as a part of the framework body 1, the trend of the power line 6 can be limited by directly utilizing the structure of the framework body 1, and the use is convenient.
As an alternative embodiment, referring to fig. 1 to 6, the slot 2 is defined on the periphery of the end face of the framework body 1 and is spaced from the positioning portion.
The structure setting of above-mentioned slot 2 is convenient for be close to the terminal surface periphery setting of skeleton body 1 with the wiring end of power cord 6 to the periphery that the 6 line bodies of power cord are close to skeleton body 1 is walked the line. The structure that location portion and slot 2 interval were arranged can guarantee that location portion plays the effect of fastening power cord 6 line body.
The slot 2 and the positioning portion of the fixed terminal 4 in this embodiment are not limited to the structures in the drawings, and may be rectangular, circular, or the like, or may be in other shapes, and the positioning portion may be the binding hole 3 in this embodiment, or a hook body, and may have any function of fixing the line body of the power line 6, and the binding hole 3 is described as an example below.
As an optional implementation manner, the slot 2 and the positioning portion in this embodiment satisfy the following relationship, and the number s of the slots 21Of positioning parts (lashing holes 3) n x mQuantity s2When the single-phase winding 5 of the motor has a plurality of outgoing line connectors 51 externally connected with the power line 6, a plurality of groups of slots 2 can be arranged, and m is the winding phase number.
In this embodiment, a three-phase motor is taken as an example, as shown in fig. 1 and fig. 2, only one outlet connector 51 of each phase winding 5 is connected to the power cord 6, a group of three slots 2 for fixing the connecting terminal 4 and four binding holes 3 are provided on the framework body 1, three binding holes 3 are respectively arranged beside the corresponding slots 2, and the remaining one binding hole 3 is arranged in parallel with one binding hole 3.
As an alternative embodiment, one positioning portion is distributed beside each slot 2, and the rest positioning portions are arranged in parallel with the positioning portion for fixing the multi-phase power line 6. In other words, n × m of the binding holes 3 are located beside the slot 2, that is, one binding hole 3 is located beside each slot 2, and the remaining k binding holes 3 may be located in parallel with a part of the binding holes 3.
The binding hole 3 arranged by the structure can ensure good wiring of the power line 6 and ensure the tensile strength of the outgoing line. The binding holes 3 at the preset positions can be selected to be matched to tightly fix the power line 6 at the position close to but not beyond the periphery of the end face of the framework body 1.
The binding holes 3 arranged in parallel have the function of performing multiple fastening at the position where a plurality of power lines 6 are gathered to be outlet, so as to ensure the tensile strength of the power lines 6, as shown in fig. 3, 5 and 6.
The spacing angle of the positioning parts arranged in parallel cannot be too large, otherwise, the fastening effect is poor or multiple fastening effects cannot be achieved. As an alternative embodiment, as shown in fig. 1, 2 and 4, the spacing included angle between the positioning portions arranged in parallel in the present embodiment is α, and 5 ° < α < 15 °. The positioning parts arranged in parallel at the angle can ensure that a plurality of power supplies are gathered to have a good fastening effect.
6 wiring ends of power cord with binding post 4 welded fastening back, need be fixed so that the 1 terminal surface of skeleton body is pressed close to the 6 line bodies of power cord through ligature hole 3 promptly in short distance, prevent that 6 perk of power cord from influencing other structures. As an alternative embodiment, referring to fig. 1, the angle between the slot 2 and the nearest positioning part is β, and 10 ° < β < 25 °. The angles of the beta at all positions can be not completely equal, and particularly, the appropriate value can be adjusted according to the outgoing line position 11 of the three-phase winding and the structure of the framework body 1.
The slot 2 keeps the above-mentioned contained angle scope with the ligature hole 3 that is closest rather than, can guarantee that good walking line promptly after power cord 6 and binding post 4 welded fastening to it is taut fixed by ligature hole 3.
As an alternative embodiment, the distribution angle of all the positioning portions adjacent to the slot 2 is γ, specifically, as shown in fig. 1 and fig. 3, the distribution angle γ refers to that the distribution angle of the banding holes 3 adjacent to the slot 2 is not the coverage angle of all the banding holes 3 (as shown in fig. 1), since the structures of the banding holes 3 and the slot 2 need to occupy space, and for convenient banding, γ is not too small, and the size thereof satisfies 40 ° < γ < 75 °; the angles of gamma at all positions on the framework body 1 can be not completely equal, and the appropriate value can be adjusted according to the outgoing line position 11 of the three-phase winding and the structure of the framework body 1.
And in order to prevent the power line 6 between the adjacent binding holes 3 from passing through the line and interfering with the inner cavity of the stator, as shown in fig. 1 and 3, according to the cosine theorem of triangle, the distribution angle gamma of all the binding holes arranged adjacent to the slot and the inner diameter d of the inner cavity of the stator1Inner diameter d of yoke portion of frame body 12The distance L between the connecting line of the positioning parts arranged in the two adjacent spaced slots 2 and the axis of the inner cavity of the stator meets the following relationship:
L–ζ＝d2×cos(γ/2)–ζ>d1and/2, wherein zeta is the calculated compensation amount.
Specifically, ζ is a calculation compensation amount of the space actually occupied by the power supply line 6 itself in consideration of the manner of bundling and the difference in the wire diameter and the number of the bundled power supply lines 6, and may be an appropriate value according to the actual situation, as shown in fig. 1.
Because the power cord 6 in the embodiment is tensioned on the end face of the framework body 1 by the matching of the binding hole 3 and the binding belt 7 and is in a shape ofIn order to arrange the line body of the power line 6 between the periphery of the inner cavity of the stator and the periphery of the framework body 1, an inflection point on the power line 6 needs to be arranged, in other words, the position of the binding hole 3 needs to be arranged. When the arrangement of the binding holes 3 and the inner diameter d of the inner cavity of the stator1Inner diameter d of yoke portion of frame body 12And when the distance L between the connecting line of the positioning parts arranged in the two adjacent spaced slots 2 and the axis of the stator inner cavity meets the relationship, the bent part and the directly connected part of the power line 6 can be ensured not to interfere with the stator inner cavity.
Can select the ligature hole 3 of set position to cooperate taut fixed power cord 6 line body according to actual conditions in this embodiment, when there are many power cords 6 to need dual or multiple fastening in ligature position department everywhere, can set up 2 or a plurality of ligature holes 3 side by side, walk the line when single power cord 6 and do not need the fastening, and walk the line to stator inner chamber outside crooked or directly link when can not interfering with the stator inner chamber, should locate ligature hole 3 and can only do the reservation.
In the embodiment, two binding holes 3 at the preset positions can be selected on the framework body 1 to be matched with and bind and fix the power line 6, specifically, as shown in fig. 3 and fig. 5, the two binding holes 3 are respectively the junction position of the two-phase power line 6 and the junction outlet position of the three-phase power line 6 (fig. 3), two binding holes 3 are only used as reserved binding holes 301 (fig. 5), one binding hole is a wire passing position of a single power line 6, the power line 6 is directly connected and does not interfere with the inner cavity of the stator, so that the binding holes 3 can be temporarily not used for binding the power line 6, but in order to prevent the power line 6 from interfering with the inner cavity of the stator when the power line 6 is loosened, the binding holes 3 are reserved at the position, and the directly connected power line 6 can be prevented from entering the inner cavity of the; the other part is a three-phase power line 6 gathering outlet position, wherein the binding hole 3 is matched with the binding belt 7 to prevent the power line 6 from being doubly (or multiply) fastened due to insufficient outlet tensile strength (fig. 3, 5 and 6).
As an alternative embodiment, the frame body 1 includes an upper frame and a lower frame connected to each other, and the slot 2 and the positioning portion are defined on the upper frame. This go up skeleton can peg graft with the lower skeleton of adaptation, and the wire winding is around after embedding stator core, guarantees that insulating properties is reliable.
The terminal of the power line 6 in this embodiment can be soldered to the terminal 4 connected to the winding outlet connector 51 by the solder 8.
The winding framework in the embodiment comprises the following steps during assembly:
1. firstly, a winding framework body 1 is formed through injection molding of a mold, and the slot 2 and the binding hole 3 are constructed on the upper framework;
2. inserting the upper framework and the lower framework matched with the upper framework into the stator core in a mutual insertion manner;
3. winding the concentrated winding 5 by using winding equipment;
4. inserting a wiring terminal 4 into the slot 2 of the framework body 1;
5. a winding outlet connector 51 and a power line 6 are welded on the wiring terminal 4;
6. the binding holes 3 at the set positions are penetrated by the binding belts 7, the power line 6 is bound and fastened above the winding 5, and the line body of the power line 6 is tensioned and limited at the position close to but not beyond the periphery of the end face of the framework body 1 by matching the binding holes 3 at the set positions.
The winding framework in the embodiment can ensure that the power line 6 is not interfered with the inner cavity of the stator, the tensile strength of the outgoing line is ensured, and the outgoing line of the winding 5 is fixedly connected with the power line 6. The built-in circuit board is not needed for power connection, the cost of winding outgoing lines and power supply wiring is saved, the die sinking process of the framework body 1 is simplified, and the product performance is improved.
Example 2
The embodiment provides a motor stator, which comprises the winding framework.
Above-mentioned motor stator owing to possess above-mentioned winding skeleton, can make 6 wiring ends of power cord and multiphase winding 5 be connected fixedly and prevent that 6 lines of power cord from walking and stator inner chamber interference, need not built-in circuit board, reduce the complete machine cost, improve the performance of product.
The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (13)
1. The utility model provides a bobbin, its characterized in that, is including the skeleton body that has stator inner chamber, be constructed with location portion and the slot that is used for fixed power cord wiring end on the skeleton body, wherein:
at least one positioning part is distributed beside each slot, and the positioning parts at the set positions are matched to fasten the power line body between the periphery of the inner cavity of the stator and the periphery of the framework body.
2. The winding frame according to claim 1, wherein the positioning portion is a binding hole defined on an outer periphery of an end surface of the frame body.
3. The bobbin of claim 2, wherein the binding hole is located on the power cord outlet side of the slot closest thereto.
4. The winding frame according to claim 2, wherein the outer peripheries of the end faces of the frame bodies are connected in a staggered manner in the radial direction to define the binding holes in an open shape.
5. The bobbin of claim 1, wherein the slot is defined in an outer periphery of an end surface of the bobbin body and spaced apart from the positioning portion.
6. Bobbin according to claim 1, wherein the number s of slots1N × m, the number s of the positioning portions2N × m + k, where k is a positive integer of 0 or more, n is the number of groups of the slots, and n is equal to or greater than nThe number of the connecting terminals externally connected with the single-phase winding and the power line is m, and the number of the winding phases is.
7. The bobbin as claimed in claim 6, wherein one of the positioning portions is disposed beside each of the slots, and the remaining positioning portions are disposed in parallel with the positioning portions for fixing the power line of multiple phases.
8. The bobbin as claimed in claim 7, wherein the angle of the interval between the positioning portions arranged in parallel is α, 5 ° < α < 15 °.
9. The bobbin of any one of claims 1, 2 or 6, wherein the slot and the proximal detent are spaced at an included angle β, 10 ° < β < 25 °.
10. The bobbin according to claim 1 or 7, wherein the distribution angle γ of all the positioning portions adjacent to the slot is such that 40 ° < γ < 75 °.
11. Bobbin according to claim 1 or 7, wherein the distribution angle γ of all the positioning portions adjacent to the slots, the inner diameter d of the stator cavity1The inner diameter d of the yoke part of the frame body2The distance L between the connecting line of the positioning parts arranged at intervals of the slots and the axis of the inner cavity of the stator meets the following relation:
L–ζ＝d2×cos(γ/2)–ζ>d1and/2, wherein zeta is the calculated compensation amount.
12. The bobbin of claim 1, wherein the bobbin body comprises an upper bobbin and a lower bobbin connected to each other, and the slot and the positioning portion are defined in the upper bobbin.
13. A stator for an electrical machine, comprising a bobbin as claimed in any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778871.1A CN111953112A (en) | 2020-08-05 | 2020-08-05 | Winding framework and motor stator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010778871.1A CN111953112A (en) | 2020-08-05 | 2020-08-05 | Winding framework and motor stator |
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| CN111953112A true CN111953112A (en) | 2020-11-17 |
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| CN202010778871.1A Pending CN111953112A (en) | 2020-08-05 | 2020-08-05 | Winding framework and motor stator |
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| CN212726625U (en) * | 2020-08-05 | 2021-03-16 | 珠海凯邦电机制造有限公司 | Winding framework and motor stator |
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