CN1048351C - Polarized electro-magnet with rotative supporting point - Google Patents
Polarized electro-magnet with rotative supporting point Download PDFInfo
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- CN1048351C CN1048351C CN95100437A CN95100437A CN1048351C CN 1048351 C CN1048351 C CN 1048351C CN 95100437 A CN95100437 A CN 95100437A CN 95100437 A CN95100437 A CN 95100437A CN 1048351 C CN1048351 C CN 1048351C
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Abstract
To provide a magic vessel applicable to toys by forming the vessel by a thermally discoloring resin material, so that a condition such that a liquid having a specified color is poured is imitatively sensed by the eyes, when a liquid having a temperature lower than a specified temperature is poured into the vessel.In a magic vessel 5, the whole body including the side part circumferential wall 6 and bottom part 6 of the vessel is formed by use of a thermally discoloring resin. Transparency is imparted to the whole vessel. Further, the color similar to the color naturally possessed by a specified liquid is set in such a manner as to be capable of being reversibly shield by a temperature change. A liquid having a temperature lower than a specified temperature is poured into the vessel, whereby a condition such that a liquid having the specified color is poured is imitatively sensed by the eyes. Namely, the thermally discoloring resin material mainly consisting of a transparent thermoplastic material containing 0.2-5wt% of a thermally discoloring material and 3-50wt.% of a higher fatty acid ester or its metal salt is used. and it is molded at a temperature not exceeding 180 deg.C.
Description
The present invention relates to polarized electro-magnet with rotative supporting point, particularly constitute the polarized electro-magnet with rotative supporting point of monostable type or latch-type with simple structure.
The polarized electro-magnet with rotative supporting point of known latch-type or monostable type is made of coil block, chevron permanent magnet and armature, coil block be with coil on the iron core that slightly is " " font and constitute; The chevron permanent magnet is to utilize methods such as laser welding to be fixed between the relative magnetic pole of iron core of coil block; Armature is that handle rotates as the center with the contacted fulcrum in the summit of chevron permanent magnet.The power supply that utilization is added on the coil of coil block forms electromagnet, and armature rotation back is contacted with relative magnetic pole.
Below, be structure and the action that example illustrates existing polarized electro-magnet with rotative supporting point with the polarized electro-magnet with rotative supporting point of monostable type.
Figure 11 is the profile of the example structure of existing monostable type polarized electro-magnet with rotative supporting point, and Figure 12 is the action specification figure of existing monostable type polarized electro-magnet with rotative supporting point.
In Figure 11, the existing polarized electro-magnet with rotative supporting point 101 of monostable type is made of coil block 102, chevron permanent magnet 104 and armature 105, and coil block 102 is that coil 102A is gone up and constitutes around the iron core 102B that slightly is " " font; The chevron permanent magnet is to utilize methods such as laser welding to be fixed between the magnetic pole 103A of iron core 102B and the magnetic pole 103B; Armature 105 is that handle is rotated motion with the contacted fulcrum 105A in the summit of chevron permanent magnet 104 as the center.
Only when the power supply that will pre-determine polarity is received on the coil block 102, armature 105 is the motion that seesaw type is made at the center with fulcrum 105A, convert to the magnetic pole (for example magnetic pole 103B) of another side from the connection of on one side magnetic pole (for example magnetic pole 103A) and to be connected, when cutting off the electricity supply, just get back to original magnetic pole (for example magnetic pole 103A) on one side.
In order stably to form monostable (monostable fixed) state, the two ends of chevron permanent magnet 104 length directions are magnetized to the S utmost point, to be magnetized to the N utmost point apart from the position of the summit C distance to a declared goal X of chevron, assembly precision in order to keep constituting polarized electro-magnet with rotative supporting point 101 utilizes methods such as laser welding to be fixed between magnetic pole 103A and the magnetic pole 103B.
In Figure 12, the unexcited stable state on the coil block 102 is not received power supply in Figure 12 (a) expression, and armature 105 is in the state of contact with magnetic pole 103A.
Under this state, formation is the magnetic circuit of ring with the magnetic pole 103A of magnetic pole 103A → chevron permanent magnet 104 → armature 105 → iron core 102B of iron core 102B, magnetic flux Φ
aSensing along arrow takes place.
Never excited state is received power supply on the coil block 102 and is produced after the excitation shown in Figure 12 (b), coil block 102 forms magnetic pole 103A one side and is geomagnetic into the electromagnet that the N utmost point, magnetic pole 103B one side are geomagnetic into the S utmost point, the corresponding active force of product of the volume number (number of turn N) of generation and electric current I and coil, on the magnetic pole 103A of armature 105 side, acting on repulsive force by identical polarity (the N utmost point), on the magnetic pole 103B of armature 105 side, acting on attraction by different polarity (the S utmost point).
Under this state, with magnetic flux Φ
a Magnetic pole 103B → iron core the 102B that forms together with iron core 102B → chevron permanent magnet 104 → armature 105 → iron core 102B is the magnetic circuit of ring, is far longer than magnetic flux Φ along the direction of arrow
aMagnetic flux Φ
b
Figure 12 (c) expression armature 105 from the state of Figure 12 (b) leave magnetic pole 103A and with the contacted inverted status of magnetic pole 103B.
Under this state, owing to armature 105 contacts with magnetic pole 103B, so, the magnetic flux Φ of Figure 12 (b)
bBe changed to magnetic flux Φ
d, simultaneously, formation is the magnetic circuit of ring with the magnetic pole 103B of magnetic pole 103B → chevron permanent magnet 104 → armature 105 → iron core 102B of iron core 102B, along the sensing generation magnetic flux Φ of arrow
c
When the state of Figure 12 (c) is cut off the electricity supply, the N utmost point by chevron permanent magnet 104 is set at is partial to magnetic pole 103A one side, the same with initial state, formation is the magnetic circuit of ring with the magnetic pole 103A of magnetic pole 103A → chevron permanent magnet 104 → armature 105 → iron core 102B of iron core 102B, because magnetic flux Φ
aEffect, armature 105 is got back to magnetic pole 103A one side from magnetic pole 103B one side.
Like this, monostable type polarized electro-magnet with rotative supporting point 101 only forms just that armature 105 keeps in touch state with magnetic pole 103B when connecting with the mains, and armature 105 always keeps in touch the rotative supporting point electromagnet of monostable (monostable fixed) type of state with magnetic pole 130A when not connecing power supply.
The not shown rotative supporting point electromagnet that latchs (bistable) type is to be that the center of S, length direction is that the N utmost point constitutes by the two ends that chevron permanent magnet 104 are magnetized into length direction.
In addition, as shown in figure 11, existing polarized electro-magnet with rotative supporting point is provided with the gap between the bottom surface sections of the coil shape portion of coil block 102 and chevron permanent magnet 104, insulate between the two in order to guaranteeing.
Below, the structure of the coil block of existing polarized electro-magnet with rotative supporting point is described.
Figure 13 is the structure chart that coil is not set of the coil block of existing polarized electro-magnet with rotative supporting point, and Figure 14 is the iron core profile of Figure 13.
In Figure 13 and Figure 14, the coil block 102 of existing polarized electro-magnet with rotative supporting point, top and bottom amplitude broad, the narrower iron core 102B of left and right side amplitude are arranged on the coil former 111A that a pair of resin constitutes, between the 111B, be integrally formed into resin insulating barrier 112A in the left and right side of iron core 102B, 112B, by insulating barrier 112A, 112B with the coil (not shown) around coil former 111A, in the 111B.
Insulating barrier 112A, the gauge of 112B is set at t11, and the height setting outstanding from the top and bottom of iron core 102B is t12.
Insulating barrier 112A, (not shown) in the die cavity of metal pattern is normally injected the resin of fusion in the shaping of 112B, makes this molten resin flow to coil former 111A equably, between the 111B and it is solidified to form.
Like this, the coil block 102 of existing polarized electro-magnet with rotative supporting point forms resin insulating barrier 112A by the left and right side at iron core 102B, 112B, around when iron core 102B goes up, the overlay that just can prevent coil is peeled off coil that the back produces and the short circuit between the iron core 102B with coil.
But, because existing polarized electro-magnet with rotative supporting point 101 uses chevron permanent magnet 104 as permanent magnet, and be that the center is rotated motion with fulcrum 105A with the contacted armature 105 in the summit of chevron permanent magnet 104, so, require the dimensional accuracy height of chevron permanent magnet 104, simultaneously complex-shaped, this just brings the problem that cost is improved.
In addition, in order suitably to keep the chevron permanent magnet 104 and the position of armature 105 to concern, requirement utilizes method such as laser welding chevron permanent magnet 104 to be fixed between the relative magnetic pole 103A and magnetic pole 103B of iron core 102B, thereby the problem of assembling trouble is arranged.
Between the bottom surface sections of the coil shape portion of coil block 102 and chevron permanent magnet 104, be provided with the gap, when the gap is increased, shape will thicken, thereby just the problem of the miniaturization that can not realize polarized electro-magnet with rotative supporting point be arranged.
In addition, in order to make coil block 102 at coil former 111A, form insulating barrier 112A between the 111B reliably, 112B must increase die cavity so that molten resin flows easily, coil former 111A particularly, the distance L between the 111B
0Longly more be necessary more.
Therefore, insulating barrier 112A, the gauge t11 of 112B increases, insulating barrier 112A, the outer wide size W between 112B
0Also increase, the coil of appointment twine in the space 113 can around the number of turns of coil will reduce, can not increase number of ampere turns, thereby the rotative supporting point electromagnet of the magnetic force that can not realize having requirement is arranged.
The objective of the invention is a kind of polarized electro-magnet with rotative supporting point of confession under directions, by the chevron permanent magnet that uses tabular yoke and simple rectangular permanent magnets to replace existing polarized electro-magnet with rotative supporting point to use, the length direction center line of the recess of tabular yoke and tabular yoke is asymmetric or be provided with symmetrically, permanent magnet configuration to asymmetric or symmetrical recess, just can be realized monostable (monostable calmly) type or latch the polarized electromagnet of (bistable) type with simple structure.
In addition, the present invention also aims to by on the tabular yoke, being provided for regulating the magnetic resistance adjustment part of magnetic resistance, thereby a kind of polarized electro-magnet with rotative supporting point that carries out stable monostable (monostable fixed) action is provided.
And then the objective of the invention is will be by forming thin dielectric film on the whole surface of tabular yoke, reduces the gap between the coil shape portion of tabular yoke and coil block, and slim polarized electro-magnet with rotative supporting point is provided.
In addition, the present invention also aims to by being integrally formed into thin resinousness insulating barrier in the periphery of the iron core top and bottom of coil block and left and right side and a pair of resin coil frame, make coil in the regulation of coil former twine in the space around on more coil, the polarized electro-magnet with rotative supporting point that can obtain big magnetic force is provided thus.
As mentioned above, utilize simple structure just can realize good insulating, slim and monostable that magnetic force is big (monostable fixed) type or latch the polarized electro-magnet with rotative supporting point of (bistable) type.
Therefore, the dimensional requirement precision height of the chevron permanent magnet that the present invention has existing polarized electro-magnet with rotative supporting point, complex-shaped and cause the problem that cost improves, owing to utilize method such as the laser welding fixing assembly working complicated problems of chevron permanent magnet accurately, the gap is set fully to guarantee insulation between coil shape portion and chevron permanent magnet bottom surface sections, shape thicken and the outer wide size that is difficult to realize the problem of miniaturization and insulating barrier increase the coil that causes in appointment twine institute in the space can around the number of turns of coil reduce and can not guarantee that the problem etc. of desirable magnetic force has all solved, it is easy just can to realize assembling with simple structure, miniaturization, the polarized electro-magnet with rotative supporting point that magnetic force is big.
Fig. 1 is the overall construction drawing of monostable type polarized electro-magnet with rotative supporting point of the present invention,
Fig. 2 is the assembly drawing of monostable type polarized electro-magnet with rotative supporting point of the present invention,
Fig. 3 is the profile of monostable type polarized electro-magnet with rotative supporting point of the present invention,
Fig. 4 is the structure chart of another embodiment of the magnetic resistance adjustment part of tabular yoke,
Fig. 5 is the action specification figure of monostable type polarized electro-magnet with rotative supporting point of the present invention,
Fig. 6 is the overall construction drawing of latch-type polarized electro-magnet with rotative supporting point of the present invention,
Fig. 7 is the assembly drawing of latch-type polarized electro-magnet with rotative supporting point of the present invention,
Fig. 8 is the action specification figure of latch-type polarized electro-magnet with rotative supporting point of the present invention,
Fig. 9 is the structure chart that coil is not set of polarized electro-magnet with rotative supporting point coil block of the present invention,
Figure 10 is the iron core profile of Fig. 9,
Figure 11 is the section of structure of the embodiment of existing monostable type polarized electro-magnet with rotative supporting point,
Figure 12 is the action specification figure of existing monostable type polarized electro-magnet with rotative supporting point,
Figure 13 is the structure chart that coil is not set of the coil block of existing polarized electro-magnet with rotative supporting point,
Figure 14 is the iron core profile of Figure 13.
Below, contrasting accompanying drawing most preferred embodiment of the present invention is being described.
Following explanation, be to be that the center describes with the embodiment that polarized electro-magnet with rotative supporting point of the present invention is applied to monostable type polarized electro-magnet with rotative supporting point, for the latch-type polarized electro-magnet with rotative supporting point, the different part of a description architecture and action.
Fig. 1～Fig. 2 represents the structure of monostable type polarized electro-magnet with rotative supporting point of the present invention.
Fig. 1 is the overall construction drawing of monostable type polarized electro-magnet with rotative supporting point of the present invention, and Fig. 2 is the assembly drawing of monostable polarized electro-magnet with rotative supporting point of the present invention, and Fig. 3 is the profile of monostable type polarized electro-magnet with rotative supporting point of the present invention.
In Fig. 1～Fig. 3, monostable type polarized electro-magnet with rotative supporting point 1 is made of coil block 2, tabular yoke 4, rectangular permanent magnets 5 and armature 6.Coil block 2 is that coil 2A is gone up and constitutes around the iron core 2B that slightly is " " font; Tabular yoke 4 is the magnetic pole 3A that insert and be fixed to coil block 2, between the 3B, and iron core 2B between form magnetic circuit; Rectangular permanent magnets 5 is to be assemblied in the set recess 4A in the offset from center position of tabular yoke 4, and armature 6 is to be that fulcrum rotates with the central part, end 6A, end 6B respectively with magnetic pole 3A, magnetic pole 3B is contacted.
As shown in Figure 2, tabular yoke 4 at the magnetic pole 3A of coil block 2, asymmetricly forms recess 4A on the center line X between magnetic pole 3B, under the no energized condition when accommodating rectangular permanent magnets 5, the route that forms owing to the magnetic force of rectangular permanent magnets 5 is magnetic pole 3A one side relatively always.
In addition, tabular yoke 4 forms the magnetic resistance adjustment member 4B that is made of otch and hole, is the magnetic resistance of the few side of center, recess 4A volume in order to increase with center line X.
By forming magnetic resistance adjustment part 4B magnetic resistance is increased, and with respect to center line X, asymmetricly form recess 4A, with rectangular permanent magnets 5 secundly settings, make its when not having excitation, realize reliably armature 6 always with magnetic pole 3A contacted monostable (monostable fixed) state.
Fig. 4 is the structure chart of another embodiment of the magnetic resistance adjustment part of tabular yoke.
The tabular yoke 7 of Fig. 4 (a) is by constituting magnetic resistance adjustment part 7B with the both sides excision, and the tabular yoke 8 of Fig. 4 (b) is by central part and both ends excision being formed magnetic resistance adjustment part 8B, increasing magnetic resistance with this respectively.
In addition, tabular yoke 4,7 and 8 is all with the (chemical vapor deposition: CVD), form (about 5 μ m～10 μ m) dielectric film as thin as a wafer from the teeth outwards of water white xylene resin on its whole surperficial evaporation.
Specifically, make two paraxylene (DPX) monomer dimer gasification exactly as raw material, stable bilvalent radical paraxylene monomer (PX) takes place in the thermal decomposition by this dimer, on base material, carry out simultaneously the absorption and the polymerization of bilvalent radical paraxylene, form the film of the Parylene (PPX) of HMW.
Like this, form the tabular yoke 4 of dielectric film, just formed a layer thickness extremely thin xylene resin uniformly on 7 and 8, owing to have excellent electrical characteristic such as electrical insulating property, dielectricity, so, can make the gap between the bottom surface of the upper end of coil 2A and tabular yoke 4,7 and 8 very little.
The dielectric film that is coated on tabular yoke 4,7 and 8 can form by fluororesin-coated.
Rectangular permanent magnets 5 is used simple rectangular permanent magnets, formation can be accommodated the consistent shape of the shape with recess 4A in the recess 4A that is located on the tabular yoke 4, make the side that contacts with the bottom surface of recess 4A be magnetized to the S utmost point, make opposite side be magnetized to the N level.
Because the structure of armature 6 as shown in Figure 3, the part that contacts with rectangular permanent magnets 5 on center line X is being provided with the chevron protuberance 6c of rake, armature 6 is that fulcrum is rotated motion with this chevron protuberance 6c, end 6A, the end 6B respectively with magnetic pole 3A, magnetic pole 3B contacts, so, can obtain the stable rotation motion.
The assembling of monostable type polarized electro-magnet with rotative supporting point 1 as shown in Figure 2, after tabular yoke 4 being pressed in the coil block 2 and rectangular permanent magnets 5 being inserted in the recess 4A of tabular yoke 4, by armature 6 is assembled on the rectangular permanent magnets 5, just can carry out unidirectional simple assembling.
In addition, by the profile of Fig. 3 as can be known, because monostable type polarized electro-magnet with rotative supporting point 1 to be to be the center along center line X section vertically downward, both sides become unsymmetric structure, so, can carry out monostable (monostable fixed) action.
Below, the action of monostable type polarized electro-magnet with rotative supporting point 1 of the present invention is described.
Fig. 5 is the action specification figure of monostable type polarized electro-magnet with rotative supporting point of the present invention.
Unexcited stable state when Fig. 5 (a) expression is not given coil block 2 energized, end 6A, the 6B of armature 6 is owing to be subjected to the magnetization of rectangular permanent magnets 5 to become the N utmost point, on the other hand, according to said structure, because magnetic pole 3A always is in S utmost point state, magnetic pole 3B always is in N utmost point state, so armature 6 just becomes the stable state with magnetic pole 3A one side contacts.
Under this state, form magnetic circuit by the loop of magnetic pole 3A → tabular yoke 4 → rectangular permanent magnets 5 → armature 6 → magnetic pole 3A, produce magnetic flux Φ 1 along the direction of arrow.
Never excited state, as Fig. 5 (b), the predetermined power supply of polarity is received and is carried out on the coil block 2 after the excitation, magnetic pole 3A becomes the N utmost point from the S utmost point owing to the electromagnet that is made of coil block 2 for example makes, magnetic pole 3B becomes the S utmost point from the N utmost point, so, between armature 6 and magnetic pole 3A, just produce the repulsive force effect, between armature 6 and magnetic pole 3B, produce attraction force acts.
Under this state, except the magnetic flux Φ 1 of Fig. 5 (a), the loop of the iron core 2B that constitutes by following energized → tabular yoke 4 → iron core 2B forms magnetic circuit, produces magnetic flux Φ 2.
Fig. 5 (c) expression armature 6 from the state of Fig. 5 (b) leave magnetic pole 3A side and with the contacted inverted status of magnetic pole 3B.
Under this state, effect by rectangular permanent magnets 5, loop by magnetic pole 3B → tabular yoke 4 → rectangular permanent magnets 5 → armature 6 → magnetic pole 3B forms magnetic circuit, produce magnetic flux Φ 3, simultaneously, by the effect of electromagnet, form magnetic circuit by the loop of iron core 2B → tabular yoke 4 → rectangular permanent magnets 5 → armature 6 → magnetic pole 3B → iron core 2B, produce magnetic flux Φ 4.
When this state is removed power supply, because the magnetic resistance of magnetic pole 3B one side of tabular yoke 4 is greater than magnetic pole 3A one side, again because rectangular permanent magnets 5 is partial to the setting of magnetic pole 3A one side, so, the magnetic flux that is produced by the magnetic force of rectangular permanent magnets 5 is also greater than magnetic flux Φ 3, so armature 6 contacts with magnetic pole 3A, keep monostable (monostable fixed) state.
Like this, because the monostable type polarized electro-magnet with rotative supporting point 1 of having used polarized electro-magnet with rotative supporting point of the present invention has the permanent magnet of tabular yoke and simple shape, and on the tabular yoke, recess asymmetricly is set and fits into permanent magnet with respect to the center line between magnetic pole, side at center line forms the magnetic resistance adjustment part of regulating magnetic resistance simultaneously, make and simplify the structure, needn't position and adjust, so, can subtract and fall cost and make stable performance.
In addition, because using, monostable type polarized electro-magnet with rotative supporting point of the present invention 1 do not need the tabular yoke and the rectangular permanent magnets of locating and adjusting, can utilize the mode of being pressed into that the tabular yoke is inserted between the relative magnetic pole and be fixed, so, can make assembling operation simple and convenient.
Owing to monostable type polarized electro-magnet with rotative supporting point 1 of the present invention forms as thin as a wafer dielectric film at the whole surperficial evaporation xylene resin of tabular yoke or coating fluororesin, can make the gap between the bottom surface of the upper end of coil and tabular yoke very little, so, can realize slimming.
Again since monostable type polarized electro-magnet with rotative supporting point 1 of the present invention on armature and the contacted part of permanent magnet, setting has the chevron protuberance of rake, so that armature can be that fulcrum is rotated motion with this chevron protuberance, so, can realize stable action.
Below, the structure and the action of latch-type polarized electro-magnet with rotative supporting point are described.
Fig. 6 and Fig. 7 are the structures of latch-type polarized electro-magnet with rotative supporting point of the present invention.
Fig. 6 is the overall construction drawing of latch-type polarized electro-magnet with rotative supporting point of the present invention, and Fig. 7 is the assembly drawing of latch-type polarized electro-magnet with rotative supporting point of the present invention.
In Fig. 6 and among Fig. 7, the difference of latch-type polarized electro-magnet with rotative supporting point 11 and monostable type polarized electro-magnet with rotative supporting point 1 shown in Figure 1, only be that it is provided with magnetic pole 3A with respect to coil block 2, the center line X between magnetic pole 3B forms the tabular yoke 9 of recess 9A symmetrically.
Because tabular yoke 9 forms recess 9A symmetrically with respect to center line X, so, when constituting polarized electro-magnet with rotative supporting point, be symmetry with center line X, the magnetic resistance of the magnetic circuit of magnetic pole 3A one side and magnetic pole 3B one side equates, thereby can constitute latch-type polarized electro-magnet with rotative supporting point 11.
Can utilize the mode of being pressed into to carry out when tabular yoke 9 being inserted between relative magnetic pole fixedly, the dielectric film that forms as thin as a wafer at the whole surperficial evaporation xylene resin of tabular yoke 9 or coating fluororesin is all identical with monostable type polarized electro-magnet with rotative supporting point 1 with the design features such as chevron protuberance that the part that contacts with permanent magnet 5 at armature 6 is provided with rake.
Below, the action of latch-type polarized electro-magnet with rotative supporting point 11 is described.
Fig. 8 is the action specification figure of latch-type polarized electro-magnet with rotative supporting point of the present invention.
Fig. 8 (a) represents not the unexcited stable state of connecting with the mains for coil block 2, magnetization by rectangular permanent magnets 5, the end 6A of armature 6,6B becomes the N utmost point, on the other hand, because for example magnetic pole 3A is in the state of the S utmost point, magnetic pole 3B is in the state of the N utmost point, so armature 6 becomes the contacted state with magnetic pole 3A.
Under this state, form magnetic circuit by the loop of magnetic pole 3A → tabular yoke 9 → rectangular permanent magnets 5 → armature 6 → magnetic pole 3A, produce magnetic flux Φ 1 along the direction of arrow.
Never excited state, as Fig. 8 (b), power supply is received and is carried out on the coil block 2 after the excitation, the electromagnet that is made of coil block 2 makes magnetic pole 3A become the N utmost point from the S utmost point, make magnetic pole 3B become the S utmost point from the N utmost point, so, between armature 6 and magnetic pole 3A, acting on repulsive force, attractive effect between armature 6 and magnetic pole 3B.
Under this state, except the magnetic flux Φ 1 of Fig. 8 (a), form magnetic circuit by the loop of the iron core 2B that follows energized to constitute → tabular yoke 9 → iron core 2B, produce magnetic flux Φ 2.
Fig. 8 (c) expression armature 6 leaves magnetic pole 3A and the inverted status that contacts with magnetic pole 3B from the state of Fig. 8 (b).
Under this state, effect by rectangular permanent magnets 5, loop by magnetic pole 3B → tabular yoke 9 → rectangular permanent magnets 5 → armature 6 → magnetic pole 3B forms magnetic circuit, produce magnetic flux Φ 4, while is by the effect of electromagnet, loop by iron core 2B → tabular yoke 9 → rectangular permanent magnets 5 → armature 6 → magnetic pole 3B → iron core 2B forms magnetic circuit, produces magnetic flux Φ 5.
In Fig. 8 (b), the magnetic resistance of the bypass (central part → armature 6 → magnetic pole 3B of tabular yoke 9) that is formed with contacting of magnetic pole 3B by armature 6 is very little, and, make the magnetic flux Φ 2 of the right-hand part of tabular yoke 9 become minimum value by the negative function that magnetic flux Φ 3 causes.
When this state is removed power supply, become the state of Fig. 8 (d), holding armature 6 and the contacted stable state of magnetic pole 3B.
Under this state, by the effect of rectangular permanent magnets 5, form magnetic circuit by the loop of magnetic pole 3B → tabular yoke 9 → rectangular permanent magnets 5 → armature 6 → magnetic pole 3B, produce magnetic flux Φ 6.
Desire to make when this state becomes armature 6 with magnetic pole 3A state of contact, receive again on the coil block 2 after the polarity of the power supply that swaps round and just can realize.
Like this, used the latch-type polarized electro-magnet with rotative supporting point 11 of polarized electro-magnet with rotative supporting point of the present invention, owing to have the permanent magnet of tabular yoke and simple shape, on the tabular yoke, make magnetic resistance equally be symmetrical arranged recess and fit into rectangular permanent magnets with respect to the center line between magnetic pole, make and simplify the structure, needn't position and adjust simultaneously, so, can reduce cost and make stable performance.
Below, the structure of the coil block of polarized electro-magnet with rotative supporting point of the present invention is described.
Fig. 9 is the structure chart that the coil block of polarized electro-magnet with rotative supporting point of the present invention is not provided with coil, and Figure 10 is the iron core profile of Fig. 9.
In Fig. 9 and Figure 10, coil block 2 constitutes around the coil 2A shown in Figure 1 on this iron core 2B by being located at the iron core 2B that slightly is " " font between a pair of resin coil frame 21A, the 21B and passing through resin insulating barrier 22.
The iron core 2B of coil block 2 is top and bottom broad, the narrower rectangular section in left and right side, is located at a pair of resin coil frame 21A, between the 21B (coil former 21A, the distance between the inner of 21B is L1).
The periphery of the top and bottom of iron core 2B and left and right side cover (iron core 2B only exposes the surface of the central portion of top and bottom) with resinousness insulating barrier 22.
Gauge t1 is identical with the projecting height t12 of prior art shown in Figure 14.
The top and bottom of iron core 2B are by insulating barrier portion 23 up and down, with the periphery (coil former 21A, the periphery of the inner side of 21B) of length L 2 overlay length directions, with the periphery of width W 1 cover width direction.
Like this, the central portion of the length direction of iron core 2B just becomes and is covered into section by resinousness insulating barrier 22 and be " " font (section " " font part yardstick L3=L1-L2-L2).
In addition, resinousness insulating barrier 22 can with a pair of resin coil frame 21A, 21B is integrally formed into.
Below, coil former 21A is described, the manufacturing process of 21B and resinousness insulating barrier 22.
Because molten resin is from making each coil former 21A, die cavity one side that 21B is shaped can be injected to the central authorities one side flow ground of the length direction of iron core 2B, so, can be integrally formed into resin coil frame 21A, 21B and resinousness insulating barrier 22.
Owing to make the section of the length direction central portion of resinousness insulating barrier 22 be " " font, and the length L 3 that this section is " " font part is set less than distance L 1, so, molten resin flow to central portion easily, and insulating barrier 22 can be configured as very homogeneous thickness with the thickness t 11 thin thickness t 2 than prior art shown in Figure 14.
Like this, because thickness t 2 attenuation, the number of turns of the coil 2A in the coil coiling space 20 of regulation is increased, so, number of ampere turns can be increased, thereby the magnetic force that polarized electro-magnet with rotative supporting point produces can be increased.
As top describe in detail according to each embodiment, because the present invention has the permanent magnet of tabular yoke and simple shape, on the tabular yoke, recess asymmetricly is set and fits into permanent magnet with respect to the center line between magnetic pole, side at this center line forms the magnetic resistance adjustment part of regulating magnetic resistance simultaneously, so, can constitute the monostable type polarized electro-magnet with rotative supporting point simple in structure that needn't locate and adjust, cost is low, the polarized electro-magnet with rotative supporting point of stable performance thereby can provide.
Again because the present invention uses tabular yoke and the rectangular permanent magnets that needn't locate and adjust, can carry out with the mode of being pressed into when inserting between the relative magnetic pole tabular yoke fixedly, so, the polarized electro-magnet with rotative supporting point that improves assembling operation efficient can be provided.
Because the present invention is evaporation xylene resin or coating fluororesin formation dielectric film as thin as a wafer on the whole surface of tabular yoke, can make the gap between the bottom surface of the upper end of coil and tabular yoke very little, so, the polarized electro-magnet with rotative supporting point of slimming can be provided.
Because the part setting that the present invention contacts with permanent magnet at armature has the chevron protuberance of rake, armature can the chevron protuberance be that fulcrum is rotated motion, so, the polarized electro-magnet with rotative supporting point that can realize stable action can be provided.
In addition, because the present invention has the permanent magnet of tabular yoke and simple shape, on the tabular yoke, with respect to the center line between magnetic pole, be provided with and make the recess that the both sides magnetic resistance equates and to fit into rectangular permanent magnets symmetrically, so, can make simple in structure, simultaneously can constitute the latch-type polarized electro-magnet with rotative supporting point simple in structure that needn't locate and adjust, thus may be provided in low, the polarized electro-magnet with rotative supporting point of stable performance.
Because the thin resinousness insulating barrier that use of the present invention and coil former are integrally formed into covers the top and bottom periphery and the left and right side of the iron core of coil block, so, can increase the number of turns of coil, thereby can increase number of ampere turns, provide magnetic force big polarized electro-magnet with rotative supporting point.
Claims (10)
1. polarized electro-magnet with rotative supporting point, it has coil block, tabular yoke, permanent magnet and armature, and on the iron core that is " " font and constitute, its relative two ends form magnetic pole to coil block by coil; The tabular yoke is to insert and be fixed between above-mentioned relative magnetic pole, forms the magnetic loop of bypass; Permanent magnet is assembled in the recess that is located on this tabular yoke, is magnetized into different polarity mutually along thickness direction; Armature is to contact with this permanent magnet, contacted after under the effect of electromagnet, rotatablely moving with above-mentioned magnetic pole, it is characterized in that: on above-mentioned tabular yoke, asymmetricly form recess, and above-mentioned permanent magnet is assembled in this recess with respect to the center line between above-mentioned magnetic pole.
2. polarized electro-magnet with rotative supporting point as claimed in claim 1 is characterized in that: form the magnetic resistance adjustment part of regulating magnetic resistance on above-mentioned tabular yoke.
3. polarized electro-magnet with rotative supporting point, it has coil block, tabular yoke, permanent magnet and armature, and on the iron core that is " " font and constitute, its relative two ends form magnetic pole to coil block by coil; The tabular yoke is to insert and be fixed between above-mentioned relative magnetic pole, forms the bypass magnetic loop; Permanent magnet is assembled in the recess that is located on this tabular yoke, is magnetized into different polarity mutually along thickness direction; Armature contacts with the central part of this permanent magnet, contact with above-mentioned magnetic pole after under the effect of electromagnet, rotatablely moving, it is characterized in that: above-mentioned tabular yoke forms recess symmetrically with respect to the center line between above-mentioned magnetic pole, simultaneously, is symmetrical in this center line and forms equal magnetic resistance.
4. polarized electro-magnet with rotative supporting point, it has coil block, tabular yoke, permanent magnet and armature, and on the iron core that is " " font and constitute, its relative two ends form magnetic pole to coil block by coil; The tabular yoke inserts and is fixed between above-mentioned relative magnetic pole, forms the bypass magnetic loop; Permanent magnet is assembled in the recess that is located on this tabular yoke, is magnetized to different polarity mutually along thickness direction simultaneously; Armature is to contact with this permanent magnet, and the back that rotatablely moves under the effect of electromagnet contacts with above-mentioned magnetic pole, it is characterized in that: generally form one deck dielectric film as thin as a wafer on above-mentioned tabular yoke.
5. polarized electro-magnet with rotative supporting point as claimed in claim 4 is characterized in that: above-mentioned dielectric film forms by evaporation xylene resin or coating fluororesin.
6. polarized electro-magnet with rotative supporting point, it has coil block, tabular yoke, permanent magnet and armature, coil block is assembled between a pair of resin coil frame and with coil by the iron core with top and bottom broad, narrower being in left and right side " " font and constitutes on this iron core by the resinousness insulating barrier, and its relative two ends form magnetic pole; The tabular yoke inserts and is fixed between above-mentioned relative magnetic pole, forms the bypass magnetic loop; Permanent magnet is assembled in the recess that is located on this tabular yoke, and is magnetized to different polarity mutually along thickness direction; Armature contacts with this permanent magnet, and the back that rotatablely moves under the effect of electromagnet contacts with above-mentioned magnetic pole, it is characterized in that: the periphery and the left and right side of the top and bottom of above-mentioned resinousness insulating barrier by covering above-mentioned iron core form.
7. polarized electro-magnet with rotative supporting point as claimed in claim 6 is characterized in that: above-mentioned resinousness insulating barrier is integrally formed into above-mentioned coil former.
8. as any described polarized electro-magnet with rotative supporting point in the claim 1,3,4 and 6, it is characterized in that: above-mentioned permanent magnet is to use simple rectangular permanent magnets.
9. as any described polarized electro-magnet with rotative supporting point in the claim 1,3,4 and 6, it is characterized in that: above-mentioned armature has the chevron protuberance of rake in the part setting that contacts with above-mentioned permanent magnet, is that fulcrum is rotated motion with this chevron protuberance.
10. as any described polarized electro-magnet with rotative supporting point in the claim 1,3,4 and 6, it is characterized in that: above-mentioned tabular yoke is being inserted between above-mentioned relative magnetic pole and fixedly the time, utilizing method of press-fitting to carry out.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP76185/94 | 1994-04-14 | ||
| JP6076185A JP2897860B2 (en) | 1994-04-14 | 1994-04-14 | Single-stable type polarized electromagnet |
| JP76186/94 | 1994-04-14 | ||
| JP6076186A JPH07282707A (en) | 1994-04-14 | 1994-04-14 | Polarized latching electromagnet |
| JP5673/94 | 1994-05-24 | ||
| JP1994005673U JP3007809U (en) | 1994-05-24 | 1994-05-24 | electromagnet |
| JP1994012147U JP3013864U (en) | 1994-09-30 | 1994-09-30 | Rotating fulcrum type polar electromagnet and rotating fulcrum type polar relay incorporating this |
| JP12147/94 | 1994-09-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1118926A CN1118926A (en) | 1996-03-20 |
| CN1048351C true CN1048351C (en) | 2000-01-12 |
Family
ID=27455742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95100437A Expired - Fee Related CN1048351C (en) | 1994-04-14 | 1995-02-28 | Polarized electro-magnet with rotative supporting point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1048351C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2466722B1 (en) * | 2010-12-20 | 2013-07-31 | Siemens Aktiengesellschaft | Yoke for a permanent magnet machine |
| CN106162472A (en) * | 2016-08-31 | 2016-11-23 | 苏州倍声声学技术有限公司 | A kind of dynamic ferrum loudspeaker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101911A (en) * | 1985-03-25 | 1986-11-19 | 松下电工株式会社 | Polarized electromagnetic actuator device |
-
1995
- 1995-02-28 CN CN95100437A patent/CN1048351C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101911A (en) * | 1985-03-25 | 1986-11-19 | 松下电工株式会社 | Polarized electromagnetic actuator device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1118926A (en) | 1996-03-20 |
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