CN201278314Y - Integration type coil skeleton and guidance sleeve - Google Patents
Integration type coil skeleton and guidance sleeve Download PDFInfo
- Publication number
- CN201278314Y CN201278314Y CNU2008202218491U CN200820221849U CN201278314Y CN 201278314 Y CN201278314 Y CN 201278314Y CN U2008202218491 U CNU2008202218491 U CN U2008202218491U CN 200820221849 U CN200820221849 U CN 200820221849U CN 201278314 Y CN201278314 Y CN 201278314Y
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- China
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- fairlead
- wall thickness
- coil rack
- coil
- guide sleeve
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Abstract
The utility model relates to the field of coil frames and guide sleeve devices in a magnetic circuit system. An integral coil frame and guide sleeve comprises a coil frame and a guide sleeve. The coil frame is formed by plasticizing on the guide sleeve through the plasticizing forming technology, the coil frame and the guide sleeve form an integer, the hole wall thickness of the coil frame in the integral coil frame and guide sleeve is 40 percent to 70 percent of the hole wall thickness of a split type coil frame with the same specification, and the hole wall thickness of the guide sleeve in the integral coil frame and guide sleeve is 40 percent to 70 percent of the hole wall thickness of a split type guide sleeve with the same specification. The utility model has simple structure, can efficiently reduce magnet gap, lowers magnetic leakage and magnetic reluctance, and dramatically enhances the magnetic induction efficiency of a magnetic circuit system.
Description
Technical field:
The utility model relates to coil rack and the fairlead device field in the magnetic circuit system.
Background technology
A large amount of magnetic circuit systems that use in the industrial products such as industrial computer sewing machine in the market, coil rack wherein and fairlead are vitals in the magnetic circuit system, general employing is coil rack and the fairlead that split is made in the tradition, by method coil rack and fairlead are connected at the nested fairlead of coil rack inwall, but the magnetic gap that exists, leakage field, magnetic resistance etc. can reduce magnetic induction efficient, cause bigger magnetic loss.
Summary of the invention
A kind of integrated coil skeleton and the fairlead of providing to be solved by this invention effectively reduces magnetic gap, reduced leakage field and magnetic resistance, significantly improves the magnetic induction efficient of magnetic circuit system.
In order to achieve the above object, the technical solution adopted in the utility model is: by the coil rack of plasticizing process plasticizing forming suitable dimension on the fairlead outer wall, make fairlead and coil rack become an indivisible integral body, become an integrated coil skeleton and fairlead.According to fairlead internal diameter size size discrimination is the coil rack and the fairlead of different size, wherein under fairlead internal diameter specification same case, fairlead pore wall thickness in integrated coil skeleton and the fairlead is the 40-70% of traditional split type fairlead pore wall thickness, and the best pore wall thickness of fairlead is 50% of the split type fairlead pore wall thickness of same specification in integrated coil skeleton and the fairlead; Coil rack pore wall thickness in integrated coil skeleton and the fairlead is the 40-70% of the split type coil rack pore wall thickness of same specification, and the pore wall thickness of best coil rack is 50% of the split type coil rack hole wall of a same specification wall thickness in integrated coil skeleton and the fairlead.
The beneficial effects of the utility model: coil rack and fairlead that integrated coil skeleton and fairlead are split type with respect to tradition, the wall thickness dimension of coil rack and fairlead is less, coil rack can load more coil, magnetic gap, leakage field, magnetic resistance are less, can significantly improve the magnetic induction efficient of magnetic circuit system.
Description of drawings
The split type coil rack cutaway view of Fig. 1 tradition
Split type coil rack A-A is to cutaway view for Fig. 2 tradition
The split type fairlead cutaway view of Fig. 3 tradition
The split type fairlead right view of Fig. 4 tradition
Fig. 5 integrated coil skeleton and fairlead cutaway view
Fig. 6 integrated coil skeleton and fairlead right view
1. coil racks among the figure, 2. coil rack inwall, 3. fairlead, 4. fairlead outer wall
Embodiment
Because employed coil rack and fairlead in the industrial circle, similar substantially to the coil rack that uses in the sewing devices such as industrial sewing machine with fairlead, below in conjunction with a kind of split type coil rack and fairlead commonly used in sewing devices such as industrial sewing machine, structure, the utility model to traditional split type coil rack and fairlead is described in further detail in conjunction with the accompanying drawings, proves absolutely execution mode of the present utility model:
Shown in Fig. 1 is a kind of cutaway view of the traditional split type coil rack of using always in sewing devices such as industrial sewing machine (1), and it is parts of making separately, and the round plastic pipe of square flange is arranged for two ends.
Fig. 2 be the A-A of the split type coil rack of tradition shown in Figure 1 (1) to cutaway view, can find out that the endoporus of coil rack (1) is circle.
Shown in Figure 3 is a kind of traditional split type fairlead (3) commonly used in sewing devices such as industrial sewing machine, it is the circular metal copper pipe of making separately, wherein the internal diameter size of the outside dimension of fairlead outer wall (4) and coil rack inwall (2) adapts, and fairlead (2) can more closely insert in the endoporus of coil rack (1).
Shown in Figure 4 is the right view of split type fairlead shown in Figure 3 (3), can find out that fairlead (3) is the circular metal copper pipe.
What traditional coil rack (1) and fairlead (3) adopted is split type, i.e. fairlead (3) and plastic skeleton (1) split manufacturing, on coil rack (1), wind line after, when assembling, again fairlead (3) is inserted in the endoporus of coil rack (1).Because the two all has separate component of one's own, give enough thickness when design, must for the hole wall of two parts.Be convenient to first shape, second have enough mechanical strengths.
The disadvantage of this practice is:
A, because the hole wall of coil rack (1) is thicker, leave enough spaces also will for during its bore design fairlead (3), so under the situation of given overall dimension and volume, just must dwindle the window area that skeleton winds the line.Like this magnetic potential parameter ampere-turn (IW) value that increases electromagnet just is restricted.
B, because coil rack (1) hole wall is thicker, after fairlead (3) assembling, leave air gap (title air gap) between the two in addition, just increase magnetic gap and leakage field.Thereby reduced magnetic conduction efficient, reduced attraction.
C, since copper material have magnetic screening action (every magnetic), material thickness is big more, shielding action is obvious more.So the independent fairlead (3) that is shaped must have adequate thickness to guarantee intensity required when assembling and the supporting role of himself.This has just increased the separated magnetic effect of fairlead (3), increases magnetic resistance, has reduced magnetic conduction efficient.
D, in the plastic compression process of coil rack (1), inevitably contraction distortion and machining tolerance will appear.During the electromagnet assembling generally all is to locate with the step surface of ferromagnetic part.This just cause individual product since the distortion of coil rack (1) and tolerance and with the accumulation of positioning step tolerance, coil rack (1) assembling will appear and after, upper and lower iron body is to its phenomenon that does not press tightly.The problem that this bad phenomenon is brought be when work of electromagnet in the conversion process of energy of system, active force and reaction force must appear, under the effect of these two kinds of power, do not press tightly coil and play will occur.So just should static potential energy field becoming a dynamic potential energy field.Because dynamically the heating, aging of solenoid has been quickened in the existence of potential energy field, finally causes product early failure.
E, coil sections skeleton (1) is arranged the time because of making the pulling force that reasons such as flaw are difficult to bear electromagnetic wire in coiling, contracting in irregular appears in the endoporus that makes it coil rack (1).Cause fairlead (3) to assemble and cause waste product.
In Fig. 5, Fig. 6, the utility model adopts plastic pressure forming technology directly to go up plastic pressure forming coil rack (1) at fairlead (3), make integrated coil skeleton and fairlead, just overcome the above drawback of traditional split type fairlead (1) and coil rack (3) fully, the utility model is described in further detail below in conjunction with accompanying drawing:
Shown in Figure 5 is the cutaway view of integrated coil skeleton and fairlead, and the surface of fairlead outer wall (4) is the coil rack (1) through plasticizing forming, makes that fairlead (3) and coil rack (1) are an integral body.
Shown in Figure 6 is the right view of skeleton of integrated coil shown in Fig. 5 and fairlead.
The utility model is that fairlead (3) and coil rack (1) are directly become one, rely on each other, can reduce the pipe thickness of fairlead (3) and the endoporus wall thickness of coil rack (1) simultaneously, the pipe thickness of fairlead of integrated coil skeleton and fairlead (3) and coil rack (1) is lower than traditional split type fairlead and coil rack, but still can reach due mechanical strength and support force, following effect can occur simultaneously:
A, because the endoporus aperture of fairlead (3) is certain, adopt the utility model to reduce the pipe thickness of fairlead (3) and the endoporus wall thickness of coil rack (1), eliminated the fit-up gap between fairlead (3) and the coil rack (1) simultaneously again.This has just effectively increased the window area Q of coil rack (1) coiling, has created condition for increasing magnetic potential (worker W).
B, since coil rack (1) wall thickness reduce and fairlead (3) between the elimination of fit-up gap, greatly reduce magnetic conduction gap between movable iron body and the helix tube, and eliminated leakage field, thereby increased magnetic conduction efficient, increased attraction.
The pipe thickness of c, reduction fairlead (3) has also just reduced the magnetic screening action of copper material screen, reduces magnetic resistance, improves magnetic conduction efficient.
After the main body assembling of d, electromagnet is finished, will turn over riveting to fairlead (3) handles, fairlead after turning over riveting (3) just is fixed up with upper and lower iron body firmly, so just and fairlead (3) plastic compression all-in-one-piece coil rack (1) also just be fixed up firmly, avoided having improved the useful life of product because of the solenoid play causes product early failure.
E, adopt integrated coil skeleton and fairlead, can significantly improve the intensity and the enabling capabilities of coil rack (1) inwall, be enough to during coiling carry the pulling force of electromagnetic wire and do not produce distortion, reduced percent defective.
Claims (6)
1, a kind of integrated coil skeleton and fairlead are made up of coil rack and fairlead, it is characterized in that, the coil rack of integrated coil skeleton and fairlead is attached on the fairlead, and coil rack and fairlead are an integral body.
2, integrated coil skeleton according to claim 1 and fairlead is characterized in that, the pore wall thickness of fairlead is the 40-70% of the traditional split type fairlead pore wall thickness of same size in integrated coil skeleton and the fairlead.
3, integrated coil skeleton according to claim 1 and 2 and fairlead is characterized in that, in integrated coil skeleton and the fairlead the best pore wall thickness of fairlead be same size traditional split type fairlead pore wall thickness 50%.
4, integrated coil skeleton according to claim 1 and fairlead is characterized in that, the pore wall thickness of the coil rack in integrated coil skeleton and the fairlead is the 40-70% of the split type coil rack pore wall thickness of same size.
According to claim 1 or 4 described integrated coil skeleton and fairleads, it is characterized in that 5, the best pore wall thickness of the coil rack in integrated coil skeleton and the fairlead is 50% of the split type coil rack pore wall thickness of same specification.
6, integrated coil skeleton according to claim 1 and fairlead is characterized in that, the fairlead in integrated coil skeleton and the fairlead also can connect as one by turning over riveting processing and coil rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202218491U CN201278314Y (en) | 2008-10-15 | 2008-10-15 | Integration type coil skeleton and guidance sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202218491U CN201278314Y (en) | 2008-10-15 | 2008-10-15 | Integration type coil skeleton and guidance sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201278314Y true CN201278314Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202218491U Expired - Fee Related CN201278314Y (en) | 2008-10-15 | 2008-10-15 | Integration type coil skeleton and guidance sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201278314Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023740A (en) * | 2014-04-30 | 2015-11-04 | 桐乡市伟达电子有限公司 | Micro mutual inductor and packaging manufacturing method thereof |
-
2008
- 2008-10-15 CN CNU2008202218491U patent/CN201278314Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023740A (en) * | 2014-04-30 | 2015-11-04 | 桐乡市伟达电子有限公司 | Micro mutual inductor and packaging manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090722 Termination date: 20171015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |