CN112688477B - Stator assembly and motor using same - Google Patents
Stator assembly and motor using same Download PDFInfo
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- CN112688477B CN112688477B CN202011490088.1A CN202011490088A CN112688477B CN 112688477 B CN112688477 B CN 112688477B CN 202011490088 A CN202011490088 A CN 202011490088A CN 112688477 B CN112688477 B CN 112688477B
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Abstract
The invention relates to a stator assembly and a motor using the same, comprising: the stator comprises a stator iron core, an insulating framework, a winding and a binding post; the insulating framework comprises a framework main body and a framework protruding part; the framework bulge part is movably connected with the framework main body; a winding adapted to be wound on the bobbin body; and the binding post is suitable for being fixedly kept on the framework bulge. The binding post of the invention cancels the welding process, thereby simplifying the structure of the whole stator assembly and avoiding the occurrence of possible adverse conditions in the welding process.
Description
Technical Field
The invention relates to the technical field of linear transmission, in particular to a stator assembly and a motor using the same.
Background
The micro-special motor is widely applied in many fields, and when a terminal of a motor part cannot be directly matched with a client, an interface mode matched with a connecting line used by the client needs to be provided for the client during supply.
The terminal of the motor part needs to be connected with a special connector clip after being switched, and the following three modes are generally adopted for switching:
(1) switching by adopting flexible circuit board
As shown in fig. 1: this approach typically involves soldering the connector to the flexible circuit board and then soldering the flexible circuit board to the terminals of the corresponding motor portion.
(2) Adapting by adopting PCB
As shown in fig. 2: the connector and the PCB can be welded at first, and then the PCB is welded on the terminal of the corresponding motor part.
(3) Using bent terminals for connection
As shown in fig. 3: it is also possible to manufacture a connector with bent terminals, and weld the bent portions of the terminals on the connector to the terminals of the corresponding motor portion.
In all three schemes, welding processing procedures are omitted, the structure is complex, the cost is high, and bad conditions such as insufficient soldering, missing soldering, short circuit and garbage caused by welding problems are easy to generate. The structure in which the flexible circuit board or the PCB is required to be connected through the PCB is further disadvantageous due to the defects, breakage, etc. of the flexible circuit board and the copper foil of the PBC. In addition, the welding part of the motor in the case is exposed outside, and the welding part is easy to be damaged or polluted in the circulation process.
Disclosure of Invention
The invention aims to provide a stator assembly to solve the technical problem of simplifying the external connection structure of a binding post.
The second purpose of the invention is to provide a motor to solve the technical problem of improving the use stability of the stator assembly
The stator assembly of the invention is realized by the following steps:
a stator assembly, comprising:
a stator core;
an insulating skeleton comprising a skeleton body and a skeleton protrusion; the framework protruding part is movably connected with the framework main body;
a winding adapted to be wound on the bobbin body; and
a post adapted to be fixedly retained on the cage projection.
In a preferred embodiment of the present invention, the bobbin projection includes a post holding portion for fixedly holding the post, and a coupling portion located between the post holding portion and the bobbin main body to couple the post holding portion and the bobbin main body; wherein
A groove is concavely arranged on the connecting part, and the terminal holding part is suitable for rotating relative to the framework main body around the groove; and
the connecting part extends along one tangential direction of the outer peripheral edge of the framework main body;
the extension direction of the terminal is parallel to the extension direction of the coupling portion.
In a preferred embodiment of the present invention, one end of the terminal is formed in a parallel direction to the coupling portion and a terminal is formed in one end of the terminal in a parallel direction to the coupling portion; and
and a ring-shaped sleeve is sleeved on the wiring end of one of the wiring terminals.
In a preferred embodiment of the present invention, the terminal holding portion has a plurality of insertion holes formed therein along a direction parallel to the connecting portion, the insertion holes being adapted to allow the terminals to pass therethrough.
In a preferred embodiment of the present invention, the insulating bobbin includes a first bobbin and a second bobbin which are axially symmetrical; the first framework and the second framework are connected through the middle electrode plate group; and
the first framework and the second framework both comprise the framework main body and the framework protruding part;
the middle polar plate group comprises a first middle polar plate and a second middle polar plate which are suitable for being matched and fixed.
In a preferred embodiment of the present invention, each of the first middle pole plate and the second middle pole plate includes an annular body, a pole claw formed by being turned over relative to the annular body, and a convex wing formed by being extended and bent convexly at a circumferential edge of the annular body;
the bending direction of the convex wing relative to the annular body is the same as the folding direction of the pole claw relative to the annular body;
the first middle polar plate and the second middle polar plate are suitable for enabling the pawls of the first middle polar plate and the second middle polar plate to be opposite to each other so as to form a middle polar plate group in a matched mode;
after the first framework, the second framework and the middle polar plate group are assembled, the convex wings of the first middle polar plate and the second middle polar plate respectively and correspondingly abut against the framework convex parts of the first framework and the second framework one by one so that the framework convex parts of the first framework and the second framework are bent towards two sides in the axial direction.
In a preferred embodiment of the present invention, a plug hole adapted to insert the terminal therein and a lateral hole vertically penetrating one end of the plug hole to extend to a side end surface of the terminal holding portion penetrate through the terminal holding portion along an axial direction of the frame body;
one end of the binding post is suitable for being bent along the lateral hole relative to the plugging hole to form a binding end, and the part of the binding post, which extends out of one end of the plugging hole far away from the lateral hole, is also suitable for being bent towards one side of the binding end to form the binding end;
when the convex wings of the first middle polar plate and the second middle polar plate respectively abut against the framework protruding parts of the first framework and the second framework in a one-to-one correspondence mode so that the framework protruding parts of the first framework and the second framework are bent towards two sides in the axial direction, the wiring ends of the wiring terminals fixedly kept on the first framework and the second framework are distributed in parallel.
In a preferred embodiment of the present invention, the opposing facing end surfaces of the skeleton body of the first skeleton and the skeleton body of the second skeleton are respectively provided with a columnar protrusion and an annular protrusion at an interval; and
the annular body of each of the first middle pole plate and the second middle pole plate is provided with a matching hole for the annular bulge to pass through;
the columnar bulges and the annular bulges which are respectively positioned on different frameworks and the matching holes on the first middle polar plate and the second middle polar plate are positioned on a concentric shaft;
when the first framework and the second framework are matched and connected with the middle electrode plate group, the columnar protrusions and the annular protrusions which are respectively positioned on different frameworks are suitable for being matched and connected in an interference mode after penetrating through the matching holes.
In a preferred embodiment of the present invention, the stator assembly further includes an outlet box adapted to be in plug-in engagement with the outer housing doubling as the stator core;
the outlet box comprises a box shell and a wire passing hole which is arranged on the box shell and is suitable for a wiring terminal of the wiring terminal to pass through;
a supporting block is further protruded on the side end face of the box shell towards the outer shell;
when the wire outlet box is matched and connected with the shell body, and the wiring end of the wiring terminal penetrates through the wiring hole, the supporting blocks are respectively abutted to the framework protruding parts of the first framework and the second framework.
In a preferred embodiment of the present invention, a notch groove is formed on the side wall of the outer housing along an axial direction parallel to the outer housing; and
the box shell is also provided with an inserting lug which is suitable for being matched with the notch groove in an inserting mode.
In a preferred embodiment of the present invention, the terminal holding portion is formed by bending toward the middle electrode group with respect to the coupling portion;
when the first framework and the second framework are connected with the middle electrode plate group in a matching mode, the end faces, facing oppositely, of the binding post holding parts respectively located on the first framework and the second framework are suitable for being bent and then distributed in a parallel and offsetting mode.
In a preferred embodiment of the present invention, the direction of the coil entering when the coil is wound on the bobbin projection is opposite to the bending direction of the terminal holding portion with respect to the coupling portion.
The motor of the invention is realized by the following steps:
an electric machine comprising: the stator assembly is provided.
Compared with the prior art, the invention has the following beneficial effects: for the stator assembly terminal, the terminal is fixedly kept on the framework protruding part of the insulating framework, and in such a case, compared with the prior art, the stator assembly and the motor using the stator assembly avoid the welding process which is needed by adopting a flexible circuit board or a PCB for switching, thereby simplifying the structure of the whole stator assembly and avoiding the occurrence of possible adverse conditions in the welding process.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of a connection state between a terminal of a motor part and a dedicated connector after being switched according to one implementation case in the prior art;
FIG. 2 is a schematic diagram illustrating a state where a terminal of a motor portion is connected to a dedicated connector after being connected to a terminal of the motor portion by switching according to another embodiment of the prior art;
FIG. 3 is a schematic diagram of a connection state between a terminal of a motor portion and a dedicated connector after the terminal is connected by a switch in another prior art implementation;
fig. 4 is a schematic view showing the overall structure of a stator assembly provided in embodiment 1 of the present invention;
figure 5 shows an exploded view of a stator assembly provided in embodiment 1 of the present invention;
fig. 6 is a schematic structural diagram illustrating an outer casing of a stator assembly provided in embodiment 1 of the present invention;
figure 7 shows a schematic cross-sectional view of the outer casing of a stator assembly provided in embodiment 1 of the present invention;
fig. 8 is a schematic diagram illustrating the matching of the winding and the insulating skeleton of the stator assembly provided in embodiment 1 of the present invention;
fig. 9 is a schematic structural view illustrating an insulating bobbin of a stator assembly provided in embodiment 1 of the present invention;
fig. 10 is a schematic structural view illustrating a bent state of a bobbin protrusion of an insulating bobbin of a stator assembly according to embodiment 1 of the present invention;
fig. 11 is a schematic structural diagram illustrating a plug hole in a frame protruding portion of an insulating frame of a stator assembly provided in embodiment 1 of the present invention;
fig. 12 is a schematic structural diagram illustrating a structure of a stator assembly according to embodiment 1 of the present invention, in which a plug hole of a frame protrusion of an insulating frame is connected to a terminal post;
fig. 13 is a schematic structural view illustrating a plug hole in a frame projection of an insulating frame of a stator assembly and a terminal in a winding state according to embodiment 1 of the present invention;
fig. 14 is a schematic structural view illustrating a structure after bending of a plug hole in a frame protruding portion of an insulating frame of a stator assembly and a terminal of a terminal provided in embodiment 1 of the present invention;
figure 15 shows a structural schematic of a middle pole plate of a stator assembly provided in embodiment 1 of the present invention from a first perspective;
figure 16 shows a structural schematic diagram of a middle pole plate of a stator assembly provided by embodiment 1 of the invention at a second viewing angle;
fig. 17 is a schematic structural diagram illustrating a first frame, a second frame and a middle pole plate group of a stator assembly provided in embodiment 1 of the present invention in a fitted state;
fig. 18 is a schematic structural diagram illustrating a first frame, a second frame and a middle pole plate group of a stator assembly provided in embodiment 1 of the present invention in an exploded state;
fig. 19 shows a first skeleton view and a second skeleton view of a stator assembly provided in embodiment 1 of the present invention;
fig. 20 is a schematic structural diagram of an outlet box of a stator assembly provided in embodiment 1 of the present invention from a first perspective;
fig. 21 is a schematic structural diagram of an outlet box of a stator assembly provided in embodiment 1 of the present invention from a second perspective;
fig. 22 is a schematic structural view illustrating a mating state of a terminal post of a stator assembly and an outlet box provided in embodiment 1 of the present invention;
fig. 23 is a schematic cross-sectional view showing a connection state of a terminal post of a stator assembly and an outlet box provided in embodiment 1 of the present invention;
fig. 24 is a schematic view showing the overall structure of a stator assembly provided in embodiment 2 of the present invention;
figure 25 shows an exploded view of a stator assembly provided in embodiment 2 of the present invention;
figure 26 shows a schematic view from a first perspective of an insulating skeleton of a stator assembly provided in embodiment 2 of the present invention;
figure 27 shows a schematic view from a second perspective of an insulating skeleton of a stator assembly provided in embodiment 2 of the present invention;
fig. 28 is a schematic view illustrating a first perspective of the insulating bobbin of the stator assembly provided in embodiment 2 of the present invention after being assembled with the terminal post;
fig. 29 is a schematic view of a second perspective of the insulating bobbin of the stator assembly provided in embodiment 2 of the present invention after being assembled with the terminal post;
fig. 30 is a schematic view showing a third perspective of the insulating frame of the stator assembly provided in embodiment 2 of the present invention after being assembled with the terminal;
fig. 31 is a schematic view of a stator assembly according to embodiment 2 of the present invention after bending of an insulating bobbin terminal holding portion;
fig. 32 is a schematic view illustrating a first frame and a second frame of a stator assembly and a middle pole plate assembly in a fitted state according to embodiment 2 of the present invention.
In the figure: connector 1, flexible circuit board 2, motor part 3, PCB5, coupler 6, outer housing 7, housing pole claw 71, injection molded body 72, mounting hole 73, winding 8, terminal 10, parallel terminal 101, terminal 103, frame main body 11, terminal holding part 12, plug hole 121, lateral hole 122, coupling part 13, groove 15, first frame 16, second frame 17, first middle pole plate 18, second middle pole plate 19, annular body 21, pole claw 22, protruding wing 23, fitting hole 24, mounting shaft 27, columnar protrusion 28, annular protrusion 29, protruding package 30, box housing 31, wire passing hole 32, support block 33, notch groove 35, plug lug 36, upper housing 37, lower housing 38, half notch groove 40, plug hole 41, bearing hole 42, annular sleeve 43, protruding block 45, and slot hole 46.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1:
referring to fig. 4 to 23, the present embodiment provides a stator assembly including: an outer shell 7 doubling as a stator core, an insulating framework, a winding 8 and a binding post 10. The insulating framework comprises a framework main body 11 and a framework protruding part, wherein the framework protruding part is arranged on the circumferential edge of one axial end of the framework main body 11 and extends towards the radial surface direction of the framework main body 11; the winding 8 is adapted to be wound around the bobbin body 11 and the terminal 10 is adapted to be fixedly retained on the bobbin projection.
In detail, the bobbin projection includes a terminal holding portion 12 for fixedly holding the terminal 10, and a coupling portion 13 located between the terminal holding portion 12 and the bobbin main body 11 to couple the terminal holding portion 12 and the bobbin main body 11; for the present embodiment, the coupling portion 13 extends in one of the tangential directions of the outer peripheral edge of the skeleton body; and after the terminal 10 is fixedly fitted with the terminal holding portion 12, the extending direction of the terminal 10 is parallel to the extending direction of the coupling portion 13. Note that, the overall thickness of the terminal holding portion 12 of the present embodiment is larger than that of the coupling portion 13. The connecting portion 13 is recessed with a groove 15, and in a specific alternative embodiment, the groove 15 of the present embodiment may be distributed along a tangential direction of an outer peripheral edge of one axial end of the frame body 11, that is, an extending direction of the groove 15 is parallel to an extending direction of the connecting portion 13, and thus, an extending direction of the terminal 10 is parallel to an extending direction of the groove 15. The groove 15 is equivalent to a structure formed by thinning a part of the structure on the coupling portion 13 to form a relative recess, and under the action of the groove 15, the terminal holding portion 12 can rotate around the groove 15 relative to the frame body 11 under the action of external force, so that the frame protrusion and the frame body 11 form a movable connection relationship.
In addition, it should be further noted that the insulating framework adopted in the present embodiment includes a first framework 16 and a second framework 17 that are axially symmetric; the first framework 16 and the second framework 17 are connected through the middle electrode plate group; the middle pole plate group here comprises a first middle pole plate 18 and a second middle pole plate 19 which are suitable for matching and fixing.
In an alternative embodiment, each of the first middle pole plate 18 and the second middle pole plate 19 includes an annular body 21, a pole claw 22 formed by being folded relative to the annular body 21, and a convex wing 23 convexly extending and formed by being bent at a circumferential edge of the annular body 21. The bending direction of the convex wing 23 relative to the annular body 21 is the same as the folding direction of the pole claw 22 relative to the annular body 21; the first and second middle pole plates 18 and 19 are adapted such that the respective pawls face away from each other to mate to form a middle pole plate group.
After the first frame 16 and the second frame 17 are assembled with the middle electrode plate group, the convex wing 23 of the first middle electrode plate 18 is abutted against the frame convex part of the first frame 16, and the convex wing 23 of the second middle electrode plate 19 is abutted against the frame convex part of the second frame 17, under the structure, the frame convex parts of the first frame 16 and the second frame 17 are bent towards two axial sides, specifically, the frame convex part of the first frame 16 is bent towards the axial side away from the second frame 17, and the frame convex part of the second frame 17 is bent towards the axial side away from the first frame 16. And in this process, the bending of the bobbin projections of the first bobbin 16 and the second bobbin 17 to both sides in the axial direction is specifically achieved by the rotation of the terminal holding portion 12 about the groove 15 with respect to the bobbin main body 11.
In the present embodiment, the outer shell 7 is a cylindrical structure, and a shell pole claw 71 is formed at one axial end of the outer shell 7 by being folded toward the inner cavity of the outer shell 7. In addition, the end of the outer shell 7, where the shell claw 71 is formed by folding, is sealed by injection molding to form an injection molded body 72, one surface of the injection molded body 72, which is in the same folding direction as the shell claw 71, is convexly provided with a mounting hole 73 concentric with the inner diameter of the shell claw 71, the mounting hole 73 is suitable for inserting the mounting shaft 27 therein, and the outer diameter of the mounting shaft 27 is in interference fit with the inner diameter of the mounting hole 73.
The terminal 10 and the insulating framework of the present embodiment are specifically connected by the following structure:
a plug hole 121 adapted to insert the terminal 10 therein and a lateral hole 122 vertically penetrating one end of the plug hole 121 to extend to a side end surface of the terminal holding portion 12 penetrate through the terminal holding portion 12 in the axial direction of the bobbin body 11. One end of the terminal 10 is adapted to be bent along the lateral hole 122 with respect to the mating hole 121 to form the terminal end 101, and a portion of the terminal 10 protruding from the end of the mating hole 121 far from the lateral hole 122 is further adapted to be bent toward the side of the terminal end 101 to form the terminal 103. It should be noted that when the protruding wings 23 of the first and second middle electrode plates 19 respectively abut against the frame protruding portions of the first and second frames 17 so that the frame protruding portions of the first and second frames 17 are bent toward two axial sides, the terminals 103 of the terminals 10 respectively fixed and held on the first frame 16 and the second frame 17 are distributed in parallel. That is, the external force of the terminal holding portion 12 rotating around the groove 15 relative to the frame body 11 is the abutting action of the protruding wings 23 of the first middle pole plate 18 and the second middle pole plate 19 on the frame protruding portions of the first frame 16 and the second frame 17 during the process of assembling the first and second frames 17 and the middle pole plate group.
The specific coupling process between the first framework 16 and the second framework 17 in the present embodiment is realized by the following structure:
the opposite facing end surfaces of the framework main body 11 of the first framework 16 and the framework main body 11 of the second framework 17 are respectively provided with a columnar protrusion 28 and an annular protrusion 29 at intervals; and the annular body 21 of the first middle pole plate 18 and the second middle pole plate 19 is respectively provided with a matching hole 24 suitable for the annular bulge 29 to pass through.
It should be noted that the column-shaped protrusion 28 and the annular protrusion 29 respectively located on different frameworks and the matching hole 24 on the first middle pole plate 18 and the second middle pole plate 19 are all located on a concentric axis. In detail, the columnar protrusion 28 on the framework main body 11 of the first framework 16, the annular protrusion 29 on the framework main body 11 of the second framework 17, and the matching holes 24 on the first middle pole plate 18 and the second middle pole plate 19 are all located on a same concentric shaft; the columnar protrusion 28 on the framework main body 11 of the second framework 17, the annular protrusion 29 on the framework main body 11 of the first framework 16 and the matching hole 24 on the first middle pole plate 18 and the second middle pole plate 19 are all located on the same concentric shaft.
When the first framework 16 and the second framework 17 are matched with the middle electrode plate group, the columnar protrusions 28 and the annular protrusions 29 which are respectively positioned on different frameworks are suitable for being matched with each other in an interference mode after penetrating through the matching holes 24. In detail, the annular protrusion 29 on the frame body 11 of the first frame 16 and the columnar protrusion 28 on the second frame 17 achieve interference fit between the annular protrusion 29 and the columnar protrusion 28 after passing through the fitting hole 24, and in the process, the columnar protrusion 28 is inserted into the annular protrusion 29. In other words, the first framework 16, the second framework 17 and the middle-level plate group are connected in an inserting mode, and the operation process is convenient and efficient.
It should be noted that, for the first middle pole plate 18 and the second middle pole plate 19 of the present embodiment, since the cylindrical protrusion 28 and the annular protrusion 29 respectively located on different frameworks are inserted through the matching hole 24 and then are matched, the clamping and fixing of the first middle pole plate 18 and the second middle pole plate 19 can be simultaneously achieved through the matching of the cylindrical protrusion 28 and the annular protrusion 29. On the basis of the structure, since the columnar protrusions 28 and the annular protrusions 29 on different frameworks need to simultaneously penetrate through the matching holes 24 on the first middle pole plate 18 and the second middle pole plate 19, in order to improve the efficiency of the matching process of the first framework 16 and the second framework 17 with the first middle pole plate 18 and the second middle pole plate 19, the embodiment is additionally provided with a corresponding matching structure between the first middle pole plate 18 and the second middle pole plate 19.
The specific matching structure between the first middle polar plate 18 and the second middle polar plate 19 is as follows:
at least one convex hull 30 is arranged on the end face of the annular body 21 suitable for being attached oppositely in the matching process of the first middle pole plate 18 or the second middle pole plate 19, the convex hull 30 can be arranged on the annular body 21 of the first middle pole plate 18, can also be arranged on the annular body 21 of the second middle pole plate 19, and can also be arranged on the annular bodies 21 of the first middle pole plate 18 and the second middle pole plate 19. When the first middle pole plate 18 is matched with the second middle pole plate 19, the convex hull 30 on the first middle pole plate 18 is matched with the matching hole 24 on the second middle pole plate 19, or the convex hull 30 on the second middle pole plate 19 is matched with the matching hole 24 on the first middle pole plate 18, that is, for the embodiment, the number of the matching holes 24 on the first middle pole plate 18 and/or the second middle pole plate 19 includes the matching with the annular protrusion 29 and also includes the matching with the convex hull 30. Preferably, the same structure is adopted for the matching holes 24 matching with the annular protrusions 29 and the convex hulls 30, so that the matching holes 24 matching with the annular protrusions 29 and the convex hulls 30 are not required to be distinguished, and the convenience and the efficiency of operation are improved.
In the embodiment, the position of the binding post 10 is fixed, and the stator assembly further comprises an outlet box which is suitable for being in plug-in fit with the outer shell 7 doubling as a stator core; the specific outlet box comprises a box shell 31 and a wire passing hole 32 which is arranged on the box shell 31 and is suitable for the terminal 103 of the binding post 10 to pass through; a support block 33 is further projected on the cartridge case 31 toward the side end face of the outer case 7; when the terminal 103 of the terminal 10 passes through the wire passing hole 32 after the outlet box is mated with the outer housing 7, the supporting blocks 33 abut against the frame protrusions of the first and second frames 17, respectively. The supporting blocks 33 are respectively abutted to the framework protruding parts of the first framework 17 and the second framework 17, so that the contact area of the framework protruding parts and the box shell 31 is increased, and the displacement change generated after the binding post 10 is stressed is reduced. In addition, the outlet box of the present embodiment can also protect the coil winding 8.
The matching between the outlet box and the outer shell 7 of the present embodiment is realized by the following structure:
a gap groove 35 is arranged on the side wall of the outer shell 7 along the axial direction parallel to the outer shell 7; and the cartridge case 31 is further provided with an insertion lug 36 adapted to be inserted into the notch groove 35, and when the cartridge case 31 is coupled to the outer case 7, the insertion lug 36 is inserted into the outer case 7. Specifically, the insertion lug 36 is in an outward-turned structure with respect to the box housing 31, so that the insertion lug 36 does not interfere with the coupling of the terminal 10 with the wire passing hole 32 and the abutment of the supporting block 33 with the frame protruding portions of the first and second frames 17. Under such structure, for the joining in marriage of leading-out box and shell body 7, need not welded fastening, also need not adopt extra auxiliary assembly, not only the simple operation can avoid the emergence of the bad condition that the welding probably exists moreover.
Example 2:
referring to fig. 24 and 32, the stator assembly provided in the present embodiment has substantially the same structure as that of the stator assembly of embodiment 1, based on embodiment 1. Specifically, the stator assembly of this embodiment includes: an outer shell 7 doubling as a stator core, an insulating framework, a winding 8 and a binding post 10. The insulating framework comprises a framework main body 11 and a framework protrusion part, wherein the framework protrusion part is arranged on the circumferential edge of one axial end of the framework main body 11 and extends towards the radial surface direction of the framework main body 11; the winding 8 is adapted to be wound on the bobbin body 11 and the terminal 10 is adapted to be fixedly held on the bobbin projection.
In detail, the bobbin projection includes a terminal holding portion 12 for fixedly holding the terminal 10, and a coupling portion 13 located between the terminal holding portion 12 and the bobbin main body 11 to couple the terminal holding portion 12 and the bobbin main body 11; note that, the overall thickness of the terminal holding portion 12 of the present embodiment is larger than that of the coupling portion 13. A groove 15 is concavely arranged on the connecting part 13, and the extending direction of the groove 15 is defined as an X axis in the embodiment; taking a specific optional implementation case as an example, the grooves 15 of this embodiment may be distributed along a tangential direction of an outer circumferential edge of one axial end of the skeleton body 11. The groove 15 is equivalent to a structure formed by thinning a part of the structure on the coupling portion 13 to form a relative recess, and under the action of the groove 15, the terminal holding portion 12 can rotate around the groove 15 relative to the frame body 11 under the action of external force, so that the frame protrusion and the frame body 11 form a movable connection relationship.
In addition, it should be further noted that the insulating framework adopted in the present embodiment includes a first framework 16 and a second framework 17 that are axially symmetric; the first bobbin 16 and the second bobbin 17 each include a bobbin main body 11 and a bobbin projection connected. The first framework 16 and the second framework 17 are connected through the middle electrode plate group; the middle pole plate group here comprises a first middle pole plate 18 and a second middle pole plate 19 which are suitable for matching and fixing.
Referring to the drawings again, the outer casing 7 of the present embodiment includes an upper casing 37 and a lower casing 38 adapted to cooperate to form a cylindrical structure, and half notches 40 adapted to allow the frame protrusions to pass through are formed at corresponding positions on the upper casing 37 and the lower casing 38, so that the half notches 40 respectively located on the upper casing 37 and the lower casing 38 can correspondingly form an integral notch structure.
More specifically, the terminal holding portion 12 of the present embodiment is provided with a plurality of insertion holes 41 adapted to allow the terminal 10 to pass therethrough, in a direction parallel to the connecting portion, that is, the extending direction of the insertion holes 41 is parallel to the X axis; in the present embodiment, three insertion holes 41 are taken as an example, and the three insertion holes 41 are provided in the terminal holding portion 12 at intervals in a row with reference to the drawings. When the post 10 passes through the insertion hole 41, one end of the post 10 is formed in a parallel direction to the connection portion and the end 101, and one end of the post 10 is formed in a parallel direction to the connection portion as a terminal 103.
The terminal holding portion 12 is formed by bending toward the middle electrode group with respect to the coupling portion 13; when the first framework 16 and the second framework 17 are matched and connected with the middle electrode plate group, the opposite facing end surfaces of the wiring terminal holding parts 12 respectively arranged on the first framework 16 and the second framework 17 are suitable for being bent and then are parallel and distributed in an offsetting way. In the process of matching and connecting the first framework 16 and the second framework 17 with the middle electrode plate group, because the terminal holding parts 12 included in the first framework 16 and the second framework 17 are bent towards the middle electrode plate group relative to the connecting part 13, mutual acting force can be generated between the terminal holding parts 12 respectively positioned on the first framework 16 and the second framework 17 under the structure, so that the first framework 16 and the second framework 17 can be relatively abutted to be bent towards the direction opposite to the initial bending direction, and finally, when the first framework 16 and the second framework 17 are assembled with the middle electrode plate group in place, the terminal holding parts 12 respectively positioned on the first framework 16 and the second framework 17 are in a parallel distribution state. In the process, the terminal holding portions 12 respectively positioned on the first frame 16 and the second frame 17 also act as mutual supporting forces, so that the terminal holding portions 12 on the first frame 16 and the second frame 17 are maintained in a stable parallel distribution state.
In addition, in the embodiment, in consideration of the fact that the framework protruding parts of the first framework 16 and the second framework 17 can effectively keep the mutual supporting and propping action of the terminal holding parts 12 on the two frameworks in the matching process, the embodiment is also provided with a lug 45 and a slot 46 which are suitable for matching and matching on the end surfaces of the two frameworks opposite to the connecting parts 13; here, the connection portion 13 of the first framework 16 and the second framework 17 may be provided with a protrusion 45 and a slot 46 at the same time, and when the first framework 16 is matched with the second framework 17, the protrusion 45 and the slot 46 on the two frameworks are correspondingly matched; of course, the first frame 16 may be provided with the protrusion 45 and the second frame 17 may be provided with the slot 46, or vice versa, which is not limited in this embodiment. Under the structure, in the process of matching the framework convex parts of the first framework 16 and the second framework 17, the matching of the convex blocks 45 and the slotted holes 46 can effectively ensure the alignment effect of the wiring terminal holding parts 12 on the two frameworks, so that the mutual supporting and propping effect of the wiring terminal holding parts 12 on the two frameworks is effectively ensured.
It should be noted that, for the first framework 16 and the second framework 17 of the present embodiment, a bearing hole 42 is distributed at one axial end of the first framework 16 and the second framework 17, and the bearing holes 42 respectively located on the first framework 16 and the second framework 17 are distributed in a state of being away from each other after the first framework 16 and the second framework 17 are coupled. The axial direction of the bearing hole 42 of the present embodiment is the Z-axis.
It should be noted that, with the structure of the coil winding 8 of the present embodiment, the direction of the coil entering when the coil is wound on the bobbin projection is opposite to the direction in which the terminal holding portion 12 is bent with respect to the coupling portion 13. Specifically, when the first framework 16 and the second framework 17 are connected in a matching manner, the end surfaces of the terminal holding parts 12 respectively positioned on the first framework 16 and the second framework 17, which are kept abutting against and attached, are defined as a D surface, the end surface opposite to the D surface is defined as a C surface, and the end surfaces in two length directions intersecting the D surface are defined as an a surface and a B surface respectively; the insertion hole 41 of the present embodiment is formed from the a surface to the B surface. When the coil is wound, the coil is routed from the a surface of the terminal holding portion 12, passes through the B surface of the terminal holding portion 12, and returns to the a surface. With reference to the three terminals 10 of the drawing, it is defined that one end of the terminal 10 extending out of the plane a is a parallel connection end 101, one end of the terminal 10 extending out of the plane B is a terminal 103, the parallel connection end 101 of the terminal 10 located in the middle and extending out of the plane a is a common end, and the terminal 103 of the terminal 10 extending out of the plane B and closest to the slot 15 is sleeved with a ring-shaped sleeve 43, so that the coil bypasses the ring-shaped sleeve 43 during winding to avoid contacting the terminal 10 extending out of the plane B.
After the winding operation is completed, before the first framework 16 and the second framework 17 are matched, namely when the terminal holding parts 12 respectively positioned on the first framework 16 and the second framework 17 are bent towards the middle electrode plate group direction relative to the connecting part 13, coils respectively wound on the first framework 16 and the second framework 17 are in a tightening state and are tightly attached to the surface C; after the first framework 16 and the second framework 17 are connected in a matching mode, mutual acting force can be generated between the binding post retaining parts 12 respectively located on the first framework 16 and the second framework 17, the binding post retaining parts can be relatively abutted to bend in the direction opposite to the initial bending direction, finally, when the first framework 16, the second framework 17 and the middle electrode plate group are assembled in place, the binding post retaining parts 12 respectively located on the first framework 16 and the second framework 17 are in a parallel distribution state, at the moment, the enamelled wires 48 respectively wound on the first framework 16 and the second framework 17 can be changed into a relatively loose state, and therefore the risk that the coil is always in a tightening state and can be broken can be reduced.
Finally, as for the connection structure between the first frame 16 and the second frame 17 and the middle electrode plate group in this embodiment, reference may be made to the specific structure in embodiment 1, and details of this embodiment are not repeated.
Example 3:
on the basis of the stator assembly of embodiment 1 or embodiment 2, the motor provided by the present embodiment includes the stator assembly of embodiment 1 or embodiment 2 and a rotor structure 9.
The above embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above embodiments are only examples of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Claims (13)
1. A stator assembly, comprising:
a stator core;
an insulating skeleton comprising a skeleton body and a skeleton protrusion; the framework protruding part is movably connected with the framework main body; the framework bulge comprises a binding post holding part for fixedly holding a binding post and a connecting part positioned between the binding post holding part and the framework main body to connect the binding post holding part and the framework main body; wherein
A groove is concavely arranged on the connecting part, and the terminal holding part is suitable for rotating relative to the framework main body around the groove;
a winding adapted to be wound on the bobbin body; and
a post adapted to be fixedly retained on the cage projection.
2. The stator assembly of claim 1, wherein the coupling portion extends in one of tangential directions of an outer peripheral edge of the bobbin main body;
the extension direction of the terminal is parallel to the extension direction of the coupling portion.
3. The stator assembly according to claim 2, wherein one end of the terminal is formed in a line end in a direction parallel to the coupling portion, and one end of the terminal is formed in a terminal end in a direction parallel to the coupling portion; and
and a ring-shaped sleeve is sleeved on the wiring end of one of the wiring terminals.
4. The stator assembly according to any of claims 2 or 3, characterized in that the terminal holding part is provided with a plurality of insertion holes suitable for the terminals to pass through along the direction parallel to the connecting part.
5. The stator assembly of claim 2, wherein the insulating backbone comprises first and second axially symmetric backbones; the first framework and the second framework are connected through the middle electrode plate group; and
the first framework and the second framework both comprise the framework main body and the framework protruding part;
the middle polar plate group comprises a first middle polar plate and a second middle polar plate which are suitable for being matched and fixed.
6. The stator assembly of claim 5, wherein the first middle pole plate and the second middle pole plate each comprise an annular body, a pole claw formed by being folded relative to the annular body, and a convex wing convexly extending and formed by being bent at the circumferential edge of the annular body;
the bending direction of the convex wing relative to the annular body is the same as the folding direction of the pole claw relative to the annular body;
the first middle polar plate and the second middle polar plate are suitable for enabling the pawls of the first middle polar plate and the second middle polar plate to be opposite to each other so as to form a middle polar plate group in a matched mode;
when first skeleton and second skeleton and well polar plate group assembly back, the protruding wing of polar plate supports the skeleton bulge of first skeleton and second skeleton so that the skeleton bulge of first skeleton and second skeleton is buckled to axial both sides in the one-to-one correspondence respectively in first well polar plate and the second.
7. The stator assembly according to claim 6, characterized in that a plug hole suitable for inserting the terminal therein and a lateral hole vertically penetrating one end of the plug hole to extend to a side end face of the terminal holding part are penetrated on the terminal holding part along an axial direction of the frame body;
one end of the binding post is suitable for being bent along the lateral hole relative to the plugging hole to form a binding end, and the part of the binding post, which extends out of one end of the plugging hole far away from the lateral hole, is also suitable for being bent towards one side of the binding end to form the binding end;
when the convex wings of the first middle polar plate and the second middle polar plate respectively support the framework protruding parts of the first framework and the second framework in a one-to-one correspondence mode so that the framework protruding parts of the first framework and the second framework are bent towards two sides in the axial direction, the wiring ends of the wiring terminals fixedly kept on the first framework and the second framework are distributed in parallel.
8. The stator assembly according to any one of claims 6 or 7, characterized in that the end surfaces of the framework main bodies of the first framework and the second framework, which face each other, are respectively provided with a columnar bulge and an annular bulge at intervals; and
the first middle polar plate and the second middle polar plate respectively comprise an annular body which is provided with a matching hole suitable for the annular bulge to pass through;
the columnar bulge and the annular bulge which are respectively positioned on different frameworks and the matching holes on the first middle polar plate and the second middle polar plate are positioned on a concentric shaft;
when the first framework and the second framework are matched and connected with the middle electrode plate group, the columnar protrusions and the annular protrusions which are respectively positioned on different frameworks are suitable for being matched and connected in an interference mode after penetrating through the matching holes.
9. The stator assembly of claim 8 further comprising an outlet box adapted for mating with an outer housing doubling as a stator core;
the outlet box comprises a box shell and a wire passing hole which is arranged on the box shell and is suitable for a wiring terminal of the wiring terminal to pass through;
a supporting block is further protruded on the side end face of the box shell towards the outer shell;
when the wire outlet box is matched and connected with the shell body, and the wiring end of the wiring terminal penetrates through the wire passing hole, the supporting block is respectively abutted to the framework protruding parts of the first framework and the second framework.
10. The stator assembly of claim 9, wherein the side wall of the outer housing has a notch groove along an axial direction parallel to the outer housing; and
the box shell is also provided with an inserting lug which is suitable for being matched with the notch groove in an inserting mode.
11. The stator assembly of claim 5, wherein the terminal holding part is formed by bending towards the middle pole plate group relative to the connecting part;
when the first framework and the second framework are connected with the middle electrode plate group in a matching mode, the end faces, facing to each other, of the binding post holding parts, which are respectively included by the first framework and the second framework, are suitable for being bent and then are parallel and distributed in an offsetting mode.
12. The stator assembly of claim 11, wherein a direction of a coil entering when the coil is wound on the bobbin protrusion is opposite to a bending direction of the terminal holding portion with respect to the coupling portion.
13. An electric machine, comprising: a stator assembly according to any of claims 1 to 12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490088.1A CN112688477B (en) | 2020-12-16 | 2020-12-16 | Stator assembly and motor using same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011490088.1A CN112688477B (en) | 2020-12-16 | 2020-12-16 | Stator assembly and motor using same |
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| CN112688477A CN112688477A (en) | 2021-04-20 |
| CN112688477B true CN112688477B (en) | 2022-05-17 |
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| CN113937946B (en) * | 2021-11-05 | 2022-08-19 | 温州晔润电机有限公司 | Motorcycle starting motor convenient to maintenance |
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