CN210608734U - Stator assembly and motor - Google Patents
Stator assembly and motor Download PDFInfo
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- CN210608734U CN210608734U CN201921564665.XU CN201921564665U CN210608734U CN 210608734 U CN210608734 U CN 210608734U CN 201921564665 U CN201921564665 U CN 201921564665U CN 210608734 U CN210608734 U CN 210608734U
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- coil winding
- stator core
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Abstract
The application discloses stator assembly and motor. The stator assembly includes stator core, a plurality of coil winding, terminal, thermal contraction pipe box and plastic envelope shell, the terminal is located on the stator core, the terminal includes the conduction end, the coil winding is around locating on the stator core, the coil winding has the lead-out terminal, the lead-out terminal with the conduction end passes through welded connection, the conduction end with the lead-out terminal overcoat is equipped with the thermal contraction pipe box, the cladding of plastic envelope stator core with the coil winding. The utility model provides a stator assembly and motor is difficult to hindering coil winding, guarantees higher engineering yield, need not carry out the plastic envelope immediately, and the residue after the welding can not fuse each other with plastic packaging material, guarantees the security that the motor used.
Description
Technical Field
The utility model relates to an electrical equipment technical field especially relates to a stator assembly and motor.
Background
The BLDC motor, also called as brushless DC motor, overcomes the congenital defect of the brush DC motor, and replaces a mechanical commutator with an electronic commutator, so that the brushless DC motor has the characteristics of good speed regulation performance of the DC motor, and the like, and has the advantages of simple structure, no commutation spark, reliable operation, easy maintenance and the like of the AC motor. The aluminum core wire in the existing BLDC motor usually adopts two modes of a mechanical stripping paint film welding structure and a direct welding stripping paint film welding structure, and because the wire diameter of the aluminum core wire in the motor is thinner, the mechanical stripping paint film welding is adopted to easily damage the aluminum core wire for the aluminum enameled wire with thinner wire diameter, and the engineering reject ratio is higher; although the reliability of direct welding stripping paint film welding is relatively high, a welding mode of dip welding of a soldering tin furnace is generally adopted, if BMC plastic packaging is not carried out immediately after welding, the welding part of the aluminum core wire is at risk of being oxidized, and if BMC plastic packaging is carried out directly, flux residues attached to the surface of soldering tin and soldering tin are fused with a BMC material in the subsequent BMC plastic packaging process, so that the risk of reducing the insulation voltage resistance safety of the motor exists.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above-mentioned problem, provide a stator assembly and motor, be difficult to hindering coil winding, guarantee higher engineering yield, need not carry out the plastic envelope immediately, and the residue after the welding can not fuse each other with plastic packaging material, guarantees the security that the motor used.
The utility model adopts the following technical scheme: the utility model provides a stator assembly, including stator core, a plurality of coil winding, terminal, heat shrink pipe box and plastic envelope shell, the terminal is located stator core is last, the terminal is including the conduction end, the coil winding is around locating stator core is last, the coil winding has the leading-out terminal, the leading-out terminal with the conduction end passes through welded connection, the conduction end with the leading-out terminal overcoat is equipped with the heat shrink pipe box, the plastic envelope cladding stator core with the coil winding.
In an embodiment of the present invention, the terminal further includes a leading-out terminal, a first connecting portion and a second connecting portion, and the leading-out terminal and the conducting terminal are connected and conducted through the first connecting portion to form a power terminal; the plurality of conduction terminals are connected to each other and conducted through the second connection portion to form a common terminal.
In an embodiment of the present invention, the stator assembly further includes a bracket, the bracket is provided with a positioning through hole and a positioning groove, the leading-out end of the power terminal passes through the positioning through hole, and the conducting end of the power terminal passes through the positioning groove; the bracket is arranged in the plastic package shell corresponding to the power end terminal, the leading-out end of the power end terminal penetrates out of the plastic package shell and is exposed out of the plastic package shell, and the conducting end of the power end terminal is positioned in the plastic package shell.
In an embodiment of the present invention, the stator assembly further includes a first insulating end portion and a second insulating end portion, the first insulating end portion and the second insulating end portion are respectively sleeved on two end faces of the stator core, the first insulating end portion is provided with a mounting groove, the power end terminal and the common end terminal are all inserted into the mounting groove.
In an embodiment of the present invention, the mounting groove is h-shaped, the first connecting portion is Z-shaped, and the second connecting portion is in a linear shape.
In an embodiment of the present invention, the wire outlet is wound around the conducting end, and an end of the wire outlet is connected to the conducting end by welding; the number of windings is at least three.
In an embodiment of the present invention, the coil winding is a direct welding type aluminum wire enameled wire winding.
The utility model also provides a motor, including foretell stator assembly.
The utility model has the advantages that: the utility model provides a stator assembly and motor, coil winding's leading-out terminal and the switching on of terminal are served and are passed through welded connection, be difficult to hindering coil winding, guarantee higher engineering yield, and welded connection back, leading-in end and leading-out terminal overcoat are equipped with the thermal contraction pipe box, the welding department that the thermal contraction pipe box can protect the leading-out terminal and switch on the end is not by the oxidation, need not carry out the plastic envelope immediately, and the residue after the welding is wrapped up in the thermal contraction pipe box, can not fuse each other with plastic packaging material, guarantee the security that the motor used.
Drawings
Fig. 1 is a schematic structural view of a stator assembly of the present invention;
fig. 2 is a schematic view of a first internal structure of the stator assembly of the present invention;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a second internal structural schematic view of the stator assembly of the present invention;
fig. 5 is a schematic structural view of the power terminal sleeve of the present invention having a heat shrinkable sleeve;
fig. 6 is a schematic structural view of the power terminal of the present invention without the thermal shrinkage sleeve;
fig. 7 is a schematic structural view of the common terminal sleeve of the present invention having a heat shrinkable sleeve;
fig. 8 is a schematic structural view of the utility model with the common terminal not covered with the heat shrinkable tube sleeve;
fig. 9 is a plan view of the first insulating end portion of the present invention.
The figures are numbered: 1. a stator core; 2. a coil winding; 3. a heat-shrinkable tube sleeve; 4. plastic packaging the shell; 5. a power supply terminal; 6. a common terminal; 7. a support; 8. a first insulated end portion; 9. a second insulated end portion; 10. a limiting groove; 21. a wire outlet head; 51. a first conducting terminal; 52. leading out the terminal; 53. a first connection portion; 61. a second conducting terminal; 62. a second connecting portion; 71. positioning the through hole; 72. positioning a groove; 81. and (4) mounting the groove.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown.
Please refer to fig. 1-9, the utility model provides a stator assembly, including stator core 1, a plurality of coil winding 2, the terminal, thermal contraction pipe box 3 and plastic envelope shell 4, the terminal is located on stator core 1, the terminal includes the conduction end, coil winding 2 is around locating on stator core 1, coil winding 2 has outlet 21, outlet 21 passes through welded connection with the conduction end, conduction end and outlet 21 overcoat are equipped with thermal contraction pipe box 3, 4 cladding stator core 1 of plastic envelope shell and coil winding 2. The leading-out terminal 21 of coil winding 2 and the conduction end of terminal are served through welded connection, be difficult to hinder coil winding 2, guarantee higher engineering yield, and after the welded connection, conduction end and leading-out terminal 21 overcoat are equipped with thermal contraction pipe box 3, the welding department that thermal contraction pipe box 3 can protect leading-out terminal 21 and conduction end is not by the oxidation, need not carry out the plastic envelope immediately, and the residue after the welding is wrapped up in thermal contraction pipe box 3, can not fuse each other with plastic envelope material, guarantee the security that the motor used.
The thermal contraction pipe sleeve 3 contains a hot melt adhesive structure, and has good adhesive force, so that the thermal contraction pipe sleeve 3 can be tightly attached to the surface of the welding position of the outlet head 21 and the conduction end. The thermal shrinkage pipe sleeve 3 has the advantages of fast shrinkage, short operation time, low cost, good environmental stress resistance and the like, and can effectively improve the anti-oxidation capability of the welding part of the outlet head 21 and the conduction end. But not limited to this, also can not contain the hot melt adhesive structure in the heat shrink pipe box 3, as long as heat shrink pipe box 3 can wrap up completely and switch on the end can, perhaps this kind of inside does not have the heat shrink pipe box 3 of hot melt adhesive structure can be earlier to the junction of leading-out wire head 21 with the end of leading before using brush the three proofings lacquer, the homoenergetic reaches the oxidation that prevents leading-out wire head 21 and the junction of leading-on end, and welded residue can not spill over from heat shrink pipe box 3, the mesh with plastic packaging material fuses each other, the utility model discloses do not limit to this.
The terminal further comprises a lead-out end 52, a first connecting part 53 and a second connecting part 62, and the conducting end comprises a first conducting end 51 and a second conducting end 61; the lead-out terminal 52 and the first conduction terminal 51 are connected to each other and conducted through a first connection portion 53 to form a power source terminal 5; the plurality of second conduction terminals 61 are connected to each other and conducted by the second connection portion 62 to form the common terminal 6. An external power supply introduces current into the stator assembly through a power supply terminal, and the common terminal is a neutral point terminal of the stator assembly.
The stator assembly further comprises a support 7, the support 7 is provided with a positioning through hole 71 and a positioning groove 72, the leading-out end 52 of the power supply terminal 5 penetrates through the positioning through hole 71, and the first conducting end 51 penetrates through the positioning groove 72; the bracket 7 is arranged in the plastic package shell 4 corresponding to the power end terminal 5, the leading-out terminal 52 of the power end terminal 5 penetrates through the plastic package shell 4 and is exposed out of the plastic package shell 4, and the first conducting terminal 51 is located in the plastic package shell 4. The positioning through hole 71 and the positioning groove 72 on the bracket 7 correspond to the leading-out terminal 52 and the first conducting terminal 51 of the power terminal respectively, so that the mounting positions of the power terminal 5 and the bracket 7 are unique, and the positioning through hole 71 and the positioning groove 72 on the bracket 7 can be used for preventing flash in the injection molding process of the injection molding shell.
The stator assembly further comprises a first insulating end portion 8 and a second insulating end portion 9, the first insulating end portion 8 and the second insulating end portion 9 are respectively sleeved on two end faces of the stator core 1, the first insulating end portion 8 is provided with a mounting groove 81, and the power supply end terminal 5 and the public end terminal 6 are inserted into the mounting groove 81. The first conducting end 51, the leading-out end 52 and the second conducting end 61 are not in direct contact with the stator core 1, so that short circuit accidents are avoided, and great loss is avoided.
Referring to fig. 4 to 9, the mounting groove 81 of the first insulating end portion 8 is h-shaped, the first connecting portion 53 of the power terminal 5, which connects the first conductive end 51 and the lead-out end 52, is Z-shaped, the second connecting portion 62 of the common terminal 6, which connects the plurality of second conductive ends 61, is in-line, and the mounting groove 81 is used for mounting both the power terminal 5 and the common terminal 6, so that the first insulating end portion 8 can be produced only in a uniform specification, which is convenient for production. First connecting portion 53 is the zigzag structure, and second connecting portion 62 is the in-line structure, can make second conduction end 61 and the first conduction end 51 in power end terminal 5 on same circumference, and then makes first conduction end 51 and second conduction end 61 all be close to the edge setting of plastic envelope 4, the plastic envelope shaping of the plastic envelope 4 of being convenient for. But not limited to this, mounting groove 81 is H font structure, or first connecting portion 53 and second connecting portion 62 can be the structure of other shapes, sets up mounting groove 81 and both can be used for inserting and establish first connecting portion 53, can be used for inserting the structure of establishing second connecting portion 62 again, can realize equally both can be used for installing power end terminal 5, can be used for installing the purpose of common terminal 6 again, the utility model discloses do not do the restriction to this.
The distance between two adjacent second conducting ends 61 in the public end terminal 6 is more than 5mm, the minimum distance structure of automatic winding of a winding machine can be met, automatic winding is realized, and the production efficiency is improved.
The number of the second conducting ends 61 in the common terminal 6 is two, and it is ensured that each second conducting end 61 only has one outlet 21 of the coil winding 2, and is consistent with the first conducting end 51, so that the consistency of the winding direction and the welding effect is ensured. When the number of the second conducting ends 61 is two, the automatic winding operation is performed by using single-head winding equipment. But not limited to this, second lead-through 61 also can be for three, adopts three spooling equipment to carry out automatic wire winding operation, the utility model discloses do not limit to this.
The wire outlet head 21 is wound on the conducting end and connected with the conducting end through welding; the number of windings is at least three. The wire outlet head 21 is firstly wound on the conduction end and welded with the conduction end, so that the connection structure of the wire outlet head 21 and the conduction end is reliable, and the welding is convenient. When the number of turns of winding reaches three times, the connection structure of leading-out terminal 21 and the end of leading-through is comparatively reliable, and when the number of turns of winding is more, the connection structure of leading-out terminal 21 and the end of leading-through is also more reliable, specifically can select according to the required structural strength of in-service use.
The conducting end is further provided with a limiting groove 10, the wire outlet head 21 is wound in the limiting groove 10, the free end of the conducting end can be a round head or a triangular head and the like, the free end of the conducting end is large, the wire outlet head 21 can be prevented from being separated from the conducting end, and the connecting structure of the wire outlet head 21 and the conducting end is more reliable.
The coil winding 2 is a direct welding type aluminum wire enameled wire winding. Direct welding type aluminium wire enameled wire winding includes the aluminium wire sinle silk, the coating of aluminium wire sinle silk outside has anti-oxidation protective layer, anti-oxidation protective layer outside coating has direct welding lacquer layer, direct welding lacquer layer outside coating has the self-adhesive coating, can the direct welding, so that follow-up mode operation of automatic welding can be adopted, compare in the welding mode of manual operation soldering tin stove dip-soldering, improve production efficiency greatly, do not need personnel regularly to remain the welding residue in the soldering tin stove, manual operation's safe risk has been reduced, and automatic welding can reduce artificial controllable risk, avoid accidental factor to arouse the loss.
The structure of the stator assembly can adopt full-automatic production, production efficiency is greatly improved, safety risk of manual operation is reduced, and accidental factors are avoided from causing loss.
Referring to fig. 1-9, the present invention further provides a method for manufacturing a stator assembly, which is used for manufacturing the stator assembly, and includes the following steps:
the method comprises the following steps: respectively sleeving a first insulating end part 8 and a second insulating end part 9 on two end faces of the stator core 1;
step two: the power terminal 5 and the common terminal 6 are respectively inserted into the mounting grooves 81 of the first insulating end portion 8;
step three: the coil winding 2 is wound on the stator core 1 through an automatic winding machine, and an outlet 21 of the coil winding 2 is wound on the conducting end and is welded and connected;
step four: a plurality of stator cores 1 are sequentially connected to form an in-line stator assembly, and then the in-line stator assembly is subjected to rounding operation to form an annular stator assembly;
step five: the bracket 7 is sleeved on the leading-out end 52 and the first conducting end 51 of the power end terminal 5 through the positioning through hole 71 and the positioning groove 72 structure, so that the bracket 7 is arranged corresponding to the power end terminal 5;
step six: sleeving the thermal shrinkage pipe sleeve 3 outside the conducting end after the welding of the wire outlet head 21, and heating and fixing;
step seven: and (3) plastically packaging the annular stator assembly and the support 7 in the plastic package shell 4 to obtain the stator assembly.
The utility model provides a manufacturing method of stator assembly, lead-out terminal 21 of coil winding 2 and the conduction of terminal are served and are passed through welded connection, be difficult to hinder coil winding 2, guarantee higher engineering yield, and after the welded connection, conduction end and lead-out terminal 21 overcoat are equipped with thermal contraction pipe box 3, thermal contraction pipe box 3 can protect lead-out terminal 21 and the welding department who switches on the end not by the oxidation, need not carry out the plastic envelope immediately, and the residue after the welding is wrapped up in thermal contraction pipe box 3, can not fuse each other with plastic packaging material, guarantee the security that the motor used.
The plastic package shell 4 is formed by injection molding, so that the welding part of the wire outlet 21 and the terminal conduction end can be completely sealed, and the reliability of the welding part is further improved. The plastic package shell 4 is formed by BCM plastic package, and the prepared product has the advantages of good mechanical property, high dimensional stability, good surface smoothness, excellent water resistance, oil resistance and corrosion resistance, heat resistance and excellent electrical property.
Wave soldering is adopted in the welding in the third step, and the method comprises the following steps: automatically immersing the conducting end wound with the wire outlet head 21 into a first treating agent for treatment, and then automatically immersing into high-temperature soldering tin for paint film removing operation; and then automatically immersing the substrate in a second treating agent, and then automatically immersing the substrate in high-temperature soldering tin again to perform soldering operation. Soldering tin is the mobile body during wave crest soldering tin, compares in static soldering tin's mode, can reduce the soldering tin surface and easily by oxidation and the soldering tin residue remains in the bad risk of soldering tin that leads to the fact on soldering tin surface scheduling problem, guarantees soldering tin welding effect, improves manufacturability and stability of quality. Wave soldering has the advantages of environmental protection, good reliability, low energy consumption, flux saving, great reduction of tin slag generation and the like, and can ensure that a soldering tin connection structure is more reliable. Wherein the soldering tin temperature during the welding operation is higher than the soldering tin temperature during the paint film removing operation.
The first treating agent is soldering flux or paint remover; the second treating agent is soldering flux. The soldering flux has certain paint removing performance and soldering assisting performance. When the paint film on the outer layer of the coil winding 2 is of a single-layer structure, the purpose of paint removal can be achieved by using soldering flux; when the paint film on the outer layer of the coil winding 2 is of a double-layer structure, the paint can be removed only by adopting a paint remover.
The utility model also provides a motor, including foretell stator assembly or the stator assembly who makes by the manufacturing approach of foretell stator assembly. The motor has high automation degree during manufacturing and is safe and reliable during use.
The above only is the preferred embodiment of the present invention, not therefore the limit the patent protection scope of the present invention, all applications the equivalent structure transformation made by the contents of the specification and the drawings of the present invention is directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a stator assembly, its characterized in that includes stator core, a plurality of coil winding, terminal, thermal contraction pipe box and plastic envelope shell, the terminal is located stator core is last, the terminal includes the conduction end, the coil winding is around locating stator core is last, the coil winding has the leading-out terminal, the leading-out terminal with the conduction end passes through welded connection, the conduction end with the leading-out terminal overcoat is equipped with the thermal contraction pipe box, the cladding of plastic envelope shell stator core with the coil winding.
2. The stator assembly according to claim 1, wherein the terminal further comprises a lead-out terminal, a first connection portion, and a second connection portion, the lead-out terminal and the conduction terminal being connected to each other and conducted through the first connection portion to form a power terminal; the plurality of conduction terminals are connected to each other and conducted through the second connection portion to form a common terminal.
3. The stator assembly according to claim 2, further comprising a bracket provided with a positioning through hole through which the lead-out terminal of the power terminal is disposed and a positioning groove through which the conducting terminal of the power terminal is disposed; the bracket is arranged in the plastic package shell corresponding to the power end terminal, the leading-out end of the power end terminal penetrates out of the plastic package shell and is exposed out of the plastic package shell, and the conducting end of the power end terminal is positioned in the plastic package shell.
4. The stator assembly according to claim 2, further comprising a first insulating end portion and a second insulating end portion, wherein the first insulating end portion and the second insulating end portion are respectively sleeved on two end surfaces of the stator core, the first insulating end portion is provided with a mounting groove, and the power end terminal and the common end terminal are inserted into the mounting groove.
5. The stator assembly according to claim 4, wherein the mounting groove has an h-shaped configuration, the first connecting portion has a Z-shaped configuration, and the second connecting portion has an in-line configuration.
6. The stator assembly of claim 1, wherein the outlet head is wound around the conducting end, and an end of the outlet head is connected to the conducting end by welding; the number of windings is at least three.
7. The stator assembly of claim 1, wherein the coil winding is a wire-wound aluminum wire winding.
8. An electrical machine comprising a stator assembly according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921564665.XU CN210608734U (en) | 2019-09-19 | 2019-09-19 | Stator assembly and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921564665.XU CN210608734U (en) | 2019-09-19 | 2019-09-19 | Stator assembly and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210608734U true CN210608734U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921564665.XU Active CN210608734U (en) | 2019-09-19 | 2019-09-19 | Stator assembly and motor |
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| CN (1) | CN210608734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474464A (en) * | 2019-09-19 | 2019-11-19 | 卧龙电气驱动集团股份有限公司 | The manufacturing method of field frame assembly, motor and field frame assembly |
-
2019
- 2019-09-19 CN CN201921564665.XU patent/CN210608734U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474464A (en) * | 2019-09-19 | 2019-11-19 | 卧龙电气驱动集团股份有限公司 | The manufacturing method of field frame assembly, motor and field frame assembly |
| CN110474464B (en) * | 2019-09-19 | 2024-08-13 | 卧龙电气驱动集团股份有限公司 | Stator assembly, motor and manufacturing method of stator assembly |
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