JPS6053004A - Highly responsive electromagnetic solenoid - Google Patents

Abstract

PURPOSE:To obtain an electromagnetic solenoid which is easy in manufacture and adjustment as a complex of simple construction parts, highly responsive and has a comparatively great stroke by arranging plural electromagnetic solenoids in a tandem shape and operating in connection. CONSTITUTION:An iron core 1 is fixed by a faucet joint on connecting plates 4, 4 which are fixed on both sides with bolts 9, 9 and each iron core 1 houses an exciting coil 3 of the same shape. A plunger type mobile piece 2 is fixed by such means as tandem 7 on a connecting rod 5 in order to be returned on the top surface of each iron core 1 by a returning spring which is not shown in the drawing when each exciting coil is not excited. In this way, solenoids are arranged in a tandem shape and by exciting each coil 3 simultaneously, each mobile piece 2 is operated as a highly responsive electromagnetic solenoid receiving magnetic force. There is also no delay of response due to increase of inductance and delay of exciting current rise due to eddy current loss is slight since the iron core is thin and good quality. Consequently, far higher speed response than that of a single large type electromagnetic solenoid can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an electromagnetic unit (3!I) with high responsiveness.

Conventional electromagnetic solenoids are divided into movable piece types such as plunger type, flat plate type, rotary type, hinge type, etc., but all of them are used for relatively low speed machines. The target was used for driving 1. For example, an electromagnetic solenoid for continuous operation of 1 to 5 has a response time of about b-1 milliseconds at the highest speed, and a special solenoid of 6 for single-shot operation can be used for several milliseconds when the incoming current is instantaneously energized. Response performance on the order of seconds 1. However, there is an electromagnetic solenoid for high-speed actuation with electronic/combi coater control.
In this case, a high response stinging pain within a few milliseconds is required with continuous movement.
It is blue. In response to this request, the electromagnetic solenoid was released in February 1981? F to S of j
Technical paper 1810462 states ``=Lunoid Synocticoator-High Response Solenoid Light (00L E N OI
D A C1” U A T ORS -F U R1
-HE RD E V E 10 P M E N T
S I N EX King RFMELY FAS-T'A
C'1lNGSOI IENOJDS)J was introduced in the paper. Collenoid actuators (1, Iron core d3 J, H) The movable piece is formed in a spiral or circular shape, and the structure of the excitation part is complex, requiring a special method to support the movable piece. , production and adjustment are difficult, and the high-response type is also difficult to manufacture and adjust.
There are some problems, such as being short and small. *The invention is
By arranging multiple electromagnetic solenoids in a small size to facilitate the connection operation, we decided to create a simple 41" complex of 4 parts, which is easy to adjust and easy to adjust. There are high-response electromagnetic solenoids with a stroke of several millimeters or more.

The high-response electromagnetic solenoid according to the present invention will be divided into a one-way drive system and a two-way drive force based on the drawings.

First of all, the first embodiment shows a part of the planar drive lj type. Fig. 1 shows a plunger type, Fig. 2 shows a flat plate type, and Fig. 3 shows a half-plunge type. Each shows a high-response electromagnetic solenoid to which the present invention is applied.

In FIG. 1, each numeral 1 is an iron core having a normal rectangular cross section, and the iron core 1 has poles 1-9 on both sides.

It is fixed by a spigot structure 8 to the connecting plates 4, 71 which are fixed by a spigot structure 8. In this case, a portion of both connecting plates 4.degree. 4 may be designed to have the effect of a yoke for the magnetic circuit. The 8 iron core 1 has an excitation coil 3 of the same shape built in. Each 2 is a Branzilet type movable piece, and each movable) 'l' 2 is an unillustrated part when each excitation coil 3 is not energized. J
: It is fixed to the sea urchin connecting rod 5 by means such as screws 7. The connecting rod 5 is accurately centered and guided by a plurality of bearings 6 fixed to one part of the iron core 1. 1o is between the iron core 1 and the connecting rod ξ], 11 is between the iron core 1 and the movable piece 2
This is a minute gap formed between the shaft part and the shaft part, and is designed to prevent C:111 dynamic resistance from occurring when the movable piece 2 is driven upward. Each exciting coil 3 is electrically connected in parallel. In this embodiment, the Branzilet type electromagnetic solenoid is arranged in a medium-sized arrangement and is the 14th structure.

By simultaneously exciting each excitation coil 3, each movable piece 2 receives a magnetic saw and operates as a high-response electromagnetic solenoid.

In general, a Φ-body electromagnetic solenoid increases the attractive force for the purpose of speeding up its response and increases the magnetic circuit cross-sectional area. Therefore, when the overall size increases, the inertial mass of the movable piece increases the magnetic circuit. Cross section A? 1/, : The force increases in proportion to the 3/2 power of the attraction force, and the inductance of the excitation part and the eddy current loss in the core increase, etc. ++3 ! Warping from both mechanical and electrical aspects (
The response slows down and performance deteriorates, causing some noise. Tree nuts/19
1 example Ll,! [Well, the Ili body solenoid 1- itself remains small, and it is made up of several solenoids] Geometrically, it becomes rota 1 [
The excitation coils are electrically connected in parallel to drive each movable piece 2 simultaneously. Therefore, the inertia of the movable piece 2 increases only in proportion to the cross-sectional area of the magnetic circuit, specifically the number of connected solenoids, and the response delay due to increased inductance. Since the iron core can be thin, the delay in the rise of the exciting current due to eddy current loss is also minimal. Therefore, the high response electromagnetic solenoid according to this embodiment is
A single doll electromagnetic solenoid J has a high-speed response of 1jJ.

Note that the number of small electromagnetic solenoids arranged is not limited to three. In addition, in order to hold the movable J-12 in this position and maintain the J3 position, a small holding current is applied to the excitation ':] field like a normal electromagnetic solenoid.
Also, it is only necessary to provide one return spring (not shown) for cutting off the current supply to the coil and returning the movable piece 2.

Figure 2 shows the high response according to the present invention, which uses a medium-sized arrangement of flat electromagnetic solenoids. Ui magnetsinlenoid.

1' is an iron core, 2' is a flat movable piece, and 3' is an excitation coil, and each excitation coil 3' is electrically connected in parallel. 4 is a connecting plate, 5 is a series 1+! i dedicated, 6 is bearing, 9 (
It's Yo Bolt. Each ijJ! l'JJ J'i' 2
'+ is screwed 7 to the connecting rod 5, and both connecting plates 4 and 4 are fixed to the iron core 1' with screws 12.

10 is a minute gap provided between the iron core 1 and the connecting rod 5, and between the inner surface of the movable piece 2/the connecting plate 4. In this embodiment, bEach excitation 1Ill-1Ill3
By energizing /, the same effect as in the case of the plunge~・151+ electromagnetic solenoid is exhibited.

Figure 3 shows a 2+' plancito type rU magnetic solenoid.
High-response electromagnetic trenor r1~ according to the present invention in a type arrangement is shown. Jo1'' is an iron core, 2'' is a semi-blank movable piece, and 3'' is a semi-blank movable piece.
is an excitation coil, and each excitation coil 3// is electrically connected in parallel. 4 is a connecting plate, 5 is a connecting rod, 6 is a bearing, ≦) is a bolt ((vine). Each movable piece 2'' is a connecting rod 5
Each iron core 1 is fixed to both connecting plates 4.4 by an in 11-structure 8. Reference numeral 10 indicates a minute gap between the iron core 1'' and the connecting rod 5, and 11 indicates a minute gap with a step weight of J between the iron core 1 and the shaft portion of the movable piece 2''.

In this embodiment as well, by energizing each exciting coil 3'', the same effect as in the case of a plunger type electromagnetic solenoid can be achieved. The case where the present invention is applied is shown. 1 α is an iron core, which is formed into a cylindrical automorphic shape to form a magnetic closed circuit. 2 is a plunger-type movable piece, which is a magnetic core. It constitutes a part of a closed circuit. 3G is an excitation coil, and each excitation coil 3q is electrically connected in parallel. 40 is a connecting cylinder, two? , 1J and each iron core 1a are housed in the spigot structure 8, and the ears provided below are tightened with bolts 9CL.
j#j There are both T and -C. 5 is a connecting rod to which the movable piece 2 is screwed 7;

6 is a bearing, 10 is an iron core 1a, and between the connecting rod 5, 11
are minute gaps between the iron core 1a and the shaft of the movable piece 2. Even in the case of d3 in this embodiment, each excitation coil 3c [, . bd3, since each magnetic circuit is completely symmetrical with respect to the connecting rod 5 (I), the volumetric effect: e is increased and the size is reduced, and the iron core 1a, the new area of the 01 company air mass road is a9, and the vortex current 1 [ ! response performance is improved by reducing losses. Also for production (
13, it is easy to make the excitation coil, iron core, etc. perfectly round.

d3, flat plate type (disk type) electromagnetic solenoid and half-plunger type electromagnetic solenoid are also configured into a double cylindrical magnetic closed circuit.
Of course, the present invention can be applied.

Next, a two-way drive system will be described as a second embodiment.

Fig. 5 (J two-handed cylindrical magnetic closed circuit J: Rinaru Blancito type
This is an application of the present invention. , 1b1. An L iron core is shown, with a hole in the center placed under -1, an end cylinder with a partially cut bottom plate, and a chair placed in the middle with a hole in the center. An annular spacer 1b made of a magnetic material and an intermediate cylindrical iron core 1b'' having a stop plate provided in the center thereof.
Sandwich and stack them together and tighten with bolts 9b.
) 174 to tile and (enter 7).

2 is a plunger-type movable piece, which constitutes a part of the magnetic material IE lead path, and is formed into a normal cylindrical body in order to pass through the 'ruTl of the annular spacer 1b''. 37α
, 3'b is an excitation coil, and each annular spacer 1b//
The pair of excitation coils 3
/a, 3/b [each iiJ moving piece 2 is located here. Each excitation coil 3'a, L is electrically connected in parallel to generate a magnetic force that drives the movable piece 2 in a negative direction as shown in the figure, and each excitation coil 3/b is also electrically connected in parallel. This generates a magnetic force that drives the movable piece 2 downward in the drawing.

5) is a connecting rod, and the moving pieces 2 are connected at appropriate intervals (threaded 7). 6 is a guide bearing for the connecting rod 5, and 10 is a connecting rod between the connecting rod 5 and the cylindrical iron core 1b''. It is a minute gap with the hole 1rlJ of the stop plate, and 11 is a minute gap between the movable piece 2 and the ring i and the human seat 1b''.

Therefore, when power is applied to a group of auxiliary research coils 310, the connecting rod 5 is driven upward in the figure, and when power is applied to the liver excitation coil 3/b, it is connected (A (5 is shown in the figure). Driven downwards.

In such a 4M structure, the two electromagnetic lenses 1 to 1 are provided with an annular spacer 11)'// which is a part of the iron core, so the volumetric efficiency is improved and the spacer is made smaller. 1. Electrification;
The electromagnetic solenoid returns [JneniΔ:ru((st+
)) Su direction response method IQ Although it is slower than IJ movement direction,
In this embodiment, the return spring is omitted.
Jj7 is added to the Il effect suction horn for moving piece 2, and LμC is applied.
Not only is it possible to improve ÷j 1 island, but also a property nu that is <111 eyes 2; in two directions can be obtained.

Figure 6 shows the case where a flat plate type (disk type) movable j''1 is used to form C second fruit 771st 4j, i. The end inner cylindrical iron core 1c' is placed on the right side of the boss with a through hole on the C side. 1c''. 2' (Yoko 4N 'l', I
(disk type) movable pieces, 3//a, 3//l
) is an excitation coil built in the space of the iron core 1c, and the movable piece 2 is located between excitation coils 3''o and 3''b to form a magnetic closed circuit. Each excitation coil 3// is electrically connected in parallel to generate a magnetic force that drives the movable piece 2' upward in the figure, and each excitation coil 3''b is also connected in parallel to generate a magnetic force that drives the movable piece 2' upward in the figure. 2' is generated downward in the figure. 4a is a connecting cylinder, and the two swivels form one groove, and the iron cores IC/, 1c// are connected to the spigot structure 8.
Accommodated at.

Then, tighten the ears with hQ up and down to Pol 1 to 90 -C fJ
We are united in G-no. 5 is a connecting rod to which the movable piece 2 is screwed 71. There is a T. 6 is a bearing C for guiding the connecting rod 5, and 10 is a bearing 1 between the inner circumferential surface of the iron core 1c and the outer circumferential surface of the connecting rod.
1' is a minute gap provided between the outer peripheral surface of the movable piece 2' and the inner peripheral surface of the connecting cylinder 40. Therefore, a group of excitation coils 3
By alternately energizing the excitation coils 3''b of ``a'' and ``-IfY'', the same effect as in the second embodiment can be obtained.

FIG. 7 shows a case where the second embodiment is constructed using a semi-blank movable piece.
An inner IJ is arranged vertically facing each other, has a through hole on one side, and has a boss located inside the end surface of the outer cylinder. A pair of 1 character shapes with a middle circle 1 + U-shaped Tsuyoshi.

The core 1d'' is tightened with a plurality of poles 1-9b via the magnetic material in the middle. is a semi-blank movable piece, which cooperates with the spacer 1d/// to form a magnetic closed circuit. 3/'/a and 3b are the spacers P
It is an excitation coil that is built in the space of the iron core 1d by sandwiching the M'I d-'l, and each excitation coil 3al is electrically connected in parallel to make the movable piece 2''. It generates a magnetic force that drives the
1 is also connected in parallel and generates a magnetic force that drives the movable R' 2 '' upwards. 7. Movable 1
1' 2 ''i;L A slight spacer::: 11 is set between the inner circumference of the annular spacer 1d/// (lJ and υl are placed. 1
0 is a minute gap between the iron core 1d and the guide rod 5.

Therefore, a group of excitation coils 3''/a unit.

By alternately energizing the group of excitation coils 3//lb, the same effects as in the second embodiment can be achieved.

Above, the present invention has been described as a two-way drive method applied to an electromagnetic solenoid consisting of a double cylindrical magnetic closed circuit, but it is also applied to a rectangular cross-section magnetic circuit explained based on FIGS. 1 to 3. Of course it can be done.

A third embodiment will be described with reference to FIGS. 1 to 7. This embodiment is based on the movable piece 2 in J3 in the first and second embodiments.
2' or 2〃 is made of a permanent magnet, or Iζ is made of a permanent magnet in the center of the movable piece 2, 2〃 or 2'', and the part that contacts the iron core is made of a thin I-strip yoke. .: Composed of movable piece 2CL.

210 or 2″O.And (movable piece 2a.

The polarity of 2/CL or 2'/CL is configured to be aligned with respect to the driving direction. In addition, in the case of a flat plate type (disc type) movable piece 2/a, the directions of the center iron core and the outer peripheral iron core (6 bundles are reversed, so each of the movable pieces 2' (l) It is a permanent magnet whose contacting parts have polarities in opposite directions.

In the first embodiment of the unidirectional drive system explained in FIGS. 1 to 4, when driving the movable pieces 2CL, 2'CL, or 2"α, the excitation coil 3 is moved in the direction that attracts the permanent magnet. 3' or 3'', and when the return spring is to be avoided, the excitation coil 3.3' or 3'' is energized in the direction to repel it. Compared to the case where the movable piece 2.2' or 2'' is an iron piece as in the first embodiment, the return spring bullet 15! It can make the force extremely weak.

In the second embodiment of the two-way drive system shown in FIGS.
When driving LJ and 2"CL in one direction as shown in Figure 2, one excitation D- (L3'α, ζ3"0 or 3C
Ll! All movable parts in Y 2a, 2'α +, 1
Apply current in the direction of attracting 2″a, ll-It It
;) to encourage others (public) 3'b, 3"b or 3
) b I! Y to i1 ■ Moving piece 2 (1, 2'CL or 27
Repulse IQ (with 33 current energized in the direction of the blade, permanent magnet J, movable piece 2Q, 2'CL or 2) /
CL simultaneously receives the strong combined force of the suction horn and the repulsive force acting in one direction, and moves upward at high speed. In addition, when driving the movable piece 2 (1, 2'Q or 2''α downward), one excitation coil 3'α, 3''α or 3''CLnY
in the direction that repulses the movable piece 2Q, 2'■ or 2''■,
The other excitation coil 3/b, 3// b, 3//
/b group is excited in the direction of attracting the movable pieces 2CL, 2'CL or 2'' opening.

In the case of a normal iron movable piece 2.2' or 2'', as shown by the (△) curve in Fig. 8, a large force is required to start the drive 11, which is due to the large gap with the magnetic circuit. However, the movable pieces 2Q, 2'c, or 2q- made of permanent magnets of this embodiment have the disadvantage that the attractive force is small and increases as the stroke gap becomes shorter. At the start of driving, the stroke increases due to strong reaction force from the iron core side in contact, and as the stroke gap becomes shorter, the suction from the iron core on the opposite side increases. ) It has the characteristic that a constant strong driving force is applied almost regardless of the stroke as in a straight line.

In this embodiment, all excitation coils can be operated at all times, and are made into small electromagnetic solenoids.
('1!'!1 performance b can be provided.In addition, the movable piece 2CL.

c' 1iJ moving piece 2C when driving 2'Q or 2〃α
L.

When 2'α or 2''Q is held, a slight excitation (6'-rail current may be reduced). Using the suction nozzle to omit holding energization-C
3, J3, movable 1'l' 2α.

27α or permanent magnet (,) used for 2″α 1.J 1
^Magnetic power?
-Category 1.1 flea) J, J, J, J motion for using ferritic parent stone) "12a, 2'a or 2/10
The response performance can be improved in a small light vehicle11). In addition, the two-way drive consisting of the rectangular cross-sectional magnetic circuit explained with reference to FIGS. 1 to 3! The present invention is applied using the 1IIJ method.
11. Using l motion j1. Of course.

The high-response electromagnetic solenoid according to the present invention has a plurality of electromagnetic solenoids arranged and fixed in series with an iron core and an excitation coil of the same shape, and the movable pieces of each electromagnetic solenoid are connected in a small size in the driving direction by a connecting rod. It is.

Therefore, it has been possible to provide an electromagnetic solenoid that is a composite of components with a simple structure, has high responsiveness, is easy to manufacture and adjust, and has a relatively large stroke.

In addition, a plurality of electromagnetic solenoids with excitation coils of the same shape as the iron core are arranged and fixed in a row, and the movable pieces of each electromagnetic solenoid are connected to the connecting rod in the J and C driving directions in a medium-sized manner, and the excitation coil is Each coil exerts magnetic force in both forward and reverse directions on the movable piece. The two excitation coils are arranged in a single line and correspond to the movable pieces, and the excitation coils are electrically connected in parallel so that magnetic force in the same direction is not applied to each movable piece.

Therefore, the J3 is a comparatively small and high-response electromagnetic solenoid with a stroker, and the return spring is omitted, which not only provides the same performance for operation in two directions, but also improves the volumetric efficiency and makes it more compact. Furthermore, by using a part of the 11i1 moving piece as an open circuit for the magnetic circuit, it is possible to improve the volumetric efficiency, reduce the size, and improve the response speed.
By using a permanent magnet in a part of the movable piece, a constant strong and sharp driving force is achieved almost regardless of the position, and the excitation coil is made smaller and more efficient. It has been possible to provide a high response electromagnetic solenoid with a relatively large stroke that reduces the current to 1f.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a unidirectional drive type plansite electromagnetic solenoid according to the present invention, Fig. 2 is a sectional view of the same flat plate electromagnetic solenoid, Fig. 3 is a sectional view of a regenerative plunger type electromagnetic solenoid, and Fig. 4. 5 is a side view of the double cylindrical rigid magnetic closed path J of the one-way drive system according to the present invention: Rinaru Plunge Figure 6 is a cross-sectional view of the flat plate type electromagnetic solenoid, Figure 7 is a cross-sectional view of the regenerative plunger type electromagnetic solenoid, and Figure 8 is the stroke of the movable piece. FIG. 3 is a diagram showing the relationship with driving force. 1.1', 1'', 1 (L, 1b, IC, Id,: iron core 2.2G-: (plunge V type) movable piece 2', 2'α
; (flat plate type) movable piece 2'', 2''O; (half-plunge (-type) movable piece 3
, 3', 3'', 3 a,, 3'a, 3'b,
3"0゜3Ub, 3///a, 3"b: Exciting coil 4; Connecting plate 4Q,; Connecting cylinder 5: Connecting rod 6; Bearing〃 7 Surface stroke → S Figure 8

Claims (1)

[Scope of Claims] 1. A plurality of electromagnetic solenoids having an iron core and an excitation coil of the same shape are arranged and fixed in series, and the movable pieces of each electromagnetic solenoid are connected in the driving direction in a shape by a connecting rod. High 1 + i5 answering electric current (drum solenoid) characterized by 2. A plurality of electromagnetic solenoids are arranged and fixed in series, with an excitation coil of the same shape as a nail, a heart, etc. in series, 8 electromagnetic solenoids 1-
The movable pieces are connected centrally in the +S+<movement direction by a connecting rod, and the excitation coil is applied to the -C movable piece in both forward and reverse directions! A set of J2 excitation 1.l coils corresponds to the movable piece, and a magnetic force in the same direction is applied to each of the 7' IJ moving parts. It's so hot! High response with 14 characteristics when connected to lρ column
City magnet solenoid 1~. 3. Make a magnetic closed circuit using the iron core and the 01 moving piece.
A high response electromagnetic solenoid according to claim 1 or 2. 4. A high-response electromagnetic solenoid according to claim 1, d) 2, or 3, wherein at least a portion of the movable piece is a permanent magnet.