CN204408153U - A kind of winding construction - Google Patents
A kind of winding construction Download PDFInfo
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- CN204408153U CN204408153U CN201520016360.0U CN201520016360U CN204408153U CN 204408153 U CN204408153 U CN 204408153U CN 201520016360 U CN201520016360 U CN 201520016360U CN 204408153 U CN204408153 U CN 204408153U
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Abstract
A kind of winding construction.It is characterized in that the even number of winding mutually can be in parallel.The even number using winding in the design, development and production of motor mutually can parallel-connection structure, can realize the full magnet of the equal electric current of full winding and all utilize.Solve the problem that product composition resource utilization is low, population theory potential energy fulfilling rate is low of three-phase windings structure.Its exportable power is made to improve 50%.Can reduce costs compared with the product of same power output, weight reduction, reduced volume.Simultaneously for the exploitation of the raising of electric efficiency, the improvement of performance and function provides better resource structures environment.
Description
Technical field
Dynamo-electric---the design and control method of winding construction.
Background technology
Now widely used three-phase winding motor utilizes the change of the magnetic field position achieved by the appropriate configuration of winding to produce the moment (or electromotive force) of assigned direction.But there is following problem in the structure achieved by this three-phase windings: (for DC Brushless Motor)
It is low that defect 1, motor form resource utilization.Three-phase windings structure always has certain phase when taking turns sequence work and " leaves unused ", or works under " halfload " state.Corresponding magnet resource is also underutilized.Simultaneously this " leave unused " utilance of also result in power device is too low, thus causes " waste " of motor formation resource.
Be analyzed as follows:
Analyze (1), as accompanying drawing 1(a) shown in, suppose that the winding number of every phase winding is 1 circle, operating current is 2 amperes.When U, V two-phase is inflow current, W phase is for flowing out electric current.According to Kirchhoff's current law (KCL), then W phase current is 2 amperes, and the potential energy produced is 2 ampere-turns; U phase, V phase current are respectively 1 ampere-turn+1 ampere-turn=2 ampere-turn for 1 ampere of potential energy produced, and the total potential energy of U, V, W three-phase windings is 4 ampere-turns.
Analyze (2), as accompanying drawing 1(b) shown in, assumed condition is the same.When U phase is inflow current, W phase is for flowing out electric current, V phase no current.Then U phase current is 2 amperes, and the potential energy produced is 2 ampere-turns; W phase current is 2 amperes, and the potential energy produced also is 2 ampere-turns; V phase produces without potential energy, and the total potential energy of U, V, W three-phase windings is 4 ampere-turns.
Above-mentioned two kinds of working methods of winding, it is the same for stressing results from generation potential energy angle.Three-phase windings structure does not participate in work, so the formation resource of more than 33% is not fully utilized because there being a phase winding (or being equivalent to a phase winding) simultaneously.
Defect 2, motor population theory potential energy fulfilling rate are low.Still suppose that the winding number of every phase winding is 1 circle, the maximum operating currenbt of winding is 2 amperes, then the motor of three-phase windings structure can hold total number of turns is 3 circles.The total potential energy of theory that can produce is 2 amperes × 3 circle=6 ampere-turns.Three characteristics of the middle term winding construction can not make whole winding have the electric current of 2 amperes to flow through simultaneously, so the actual available total potential energy of motor only has 4 ampere-turns.Be about 67% of the total potential energy of theory that motor resource can provide.
Summary of the invention
The design addressed the aforementioned drawbacks and the method adopted:
Winding employing even number mutually can parallel-connection structure and control.In the mode of " hand in hand work ", construct the structural environment that an equal electric current of full winding, full magnet all utilize.Thus the utilance improving motor formation resource also can realize the total potential energy of theory that motor formation resource can provide completely.
Mutually can under the conceptual framework of parallel-connection structure and control at even number, the design of experiment is " two & tetra-" scheme (also can have more assembled scheme).That is: two-phase winding can parallel operation, four phase windings wheel sequences control.Its principle is as accompanying drawing 2.
As accompanying drawing 2(a) shown in, when A, B are identical during inflow current, when C, D are identical, flow out electric current.
As accompanying drawing 2(b) shown in, when B, C are identical during inflow current, when D, A are identical, flow out electric current.
The combined of other is so analogized, and motor at work each phase winding has equal electric current to flow through simultaneously, eliminates idle winding.Thus solve the problem of three-phase windings fault of construction 1.
Assumed condition is the same, and when same groove is held, the held total number of turns of motor winding is 3 circles, then during four phase winding structures, every phase winding can be assigned as 0.75 circle.The potential energy that every phase winding produces is 2 ampere of * 0.75 circle=1.5 ampere-turn.The total potential energy of the producible theory of motor is 1.5 ampere-turn * 4 phase=6 ampere-turns.Four phase winding structures are that the electric current that each phase winding of motor flows through 2 amperes simultaneously provides condition, and therefore theoretical total potential energy can be accomplished.Thus solve the problem of three-phase windings fault of construction 2.
Winding construction improve after its effect be: reduce costs, reduced volume, weight reduction.Simultaneously again for the exploitation of the raising of electric efficiency, the improvement of performance and function provides a kind of better resource structures environment.
Four phase winding structures are compared with three-phase windings structure: by making full use of the formation resource of motor, make the exportable power of motor improve 50%(by under assumed condition produce 4 ampere-turn potential energy bring up to can produce 6 ampere-turn potential energy).
If other resources supplIes license (as tankage, magnetic flux etc.) of motor, only need with identical wire diameter increase by 25% with line amount and increase about 30% magnet amount (as long as the magnet demand that corresponding power exports can be met), the power output of motor just can be made to double.(2 amperes × 1 phase=8, circle × 4 ampere-turn).
Accompanying drawing explanation
Accompanying drawing 1, illustrates several working methods of the three-phase windings structure of current extensive use.In figure, arrow is the direction that operating current flows simultaneously in the windings.So as to analyzing the defect that it exists.
Accompanying drawing 2, illustrates the working method of the present invention's " even number mutually can parallel-connection structure ".In figure, arrow is the direction that operating current flows simultaneously in the windings.So as to the settling mode to three-phase windings fault of construction is described.
Accompanying drawing 3, illustrates even number and can produce the principle of oriented moment by parallel-connection structure Working winding when taking turns sequence conducting mutually.
Embodiment
Motor running controls the phase change method that can adopt three-phase windings motor.Mutually a kind of new phase change method also can be used by the environment that provides of parallel-connection structure by even number.And be referred to as " relay-type free of discontinuities commutation method ".That is, when circuit transfers B, C parallel operation to by A, B parallel operation, B phase control does not change, and closes the relevant elements of A phase in above-mentioned grouping, is taken over job by the relevant elements of C phase in above-mentioned grouping.Achieve free of discontinuities commutation like this, the dead zone of " inactivity input " during commutation can be eliminated and create useful " a preorder moment ".
As accompanying drawing 3(a) shown in: in forward wheel program process, when wheel sequence is turned off for being converted to A phase when B, C are in parallel by A, B parallel connection, become the single-phase magnetic pole of B phase from A, B produced composite pole that is in parallel, the corresponding the shortest position of magnetic circuit also there occurs change (center to B).And change direction conforms to lower order B, C phase composite pole produces direction.
In like manner, as shown in Figure 3 (b): in reversing wheel program process, turned off for being converted to B phase when A, D are in parallel by A, B parallel connection.Become the single-phase magnetic pole of A phase from A, B produced composite pole that is in parallel, the corresponding the shortest position of magnetic circuit also there occurs change (center to A).And change direction conforms to lower order A, D phase composite pole produces direction.
Therefore, the moment that new commutation method produces also just act as " the preorder moment " that is of value to the moment that lower order composite pole produces.The generation of preorder moment and have and help improve electric efficiency and improve motor performance.
When combination wheel sequence is: when AB-BC-CD-DA is forward torque.Then: combination wheel sequence is: during AB-DA-CD-BC, can opposing torque be produced.
According to the thinking of " two & tetra-" scheme, designing and having produced winding is that even number mutually can the motor of parallel-connection structure.Experimental result: achieving two-phase winding can parallel operation, four phase windings wheel sequences control, and produces and points to the function of rotating torque.
Claims (2)
1. a winding construction, is characterized in that the even number of winding mutually can be in parallel.
2. winding construction according to claim 1, it is characterized by winding is motor winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016360.0U CN204408153U (en) | 2015-01-12 | 2015-01-12 | A kind of winding construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016360.0U CN204408153U (en) | 2015-01-12 | 2015-01-12 | A kind of winding construction |
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| Publication Number | Publication Date |
|---|---|
| CN204408153U true CN204408153U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520016360.0U Expired - Fee Related CN204408153U (en) | 2015-01-12 | 2015-01-12 | A kind of winding construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578662A (en) * | 2015-01-12 | 2015-04-29 | 夏阳 | Even number phase parallel structure and control for winding |
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2015
- 2015-01-12 CN CN201520016360.0U patent/CN204408153U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578662A (en) * | 2015-01-12 | 2015-04-29 | 夏阳 | Even number phase parallel structure and control for winding |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20220112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |