JPS59148305A - Polarized electromagnet device - Google Patents

Abstract

PURPOSE:To avoid inconvenience such as the attractive force of an armature yields to the external spring load so that the armature stops at an intermediate position by a method wherein a concave part is provided to a level piece of the 1st yoke and an end part of a plate provided to the armature is set in this concave part. CONSTITUTION:The 1st yoke 30 is composed of a left side piece 31, right side piece 32 and a level piece 33 and a concave part 34 is formed in the level piece 33 at the position close the left side piece 31. A permanent magnet 38 and the 2nd yoke 35 are attached to the center part of the level piece 33 and the distance between the left side piece 31 and the 2nd yoke 35 is made larger than that between the right side piece 32 and the 2nd yoke 35. A plate 42 is provided to a right end of an armature 39 and a plate 41, longer than the plate 42, is provided to a left end of the armature 39 and the end part of the plate 41 is set in the concave part 34. With this configuration, when a current is applied to a coil 55, the armature 39 is attracted to the arrow direction by the flux Y of the coil and the flux X of the magnet. When the plate 41 touches the pole contact surface of the yoke 30, the attractive force of the armature 39 increases rapidly.

Description

Detailed Description of the Invention Technical Field The present invention provides a permanent magnet in a magnetic circuit composed of an armature and a yoke, and superimposes and attenuates the magnetomotive force of a coil on the magnetic flux of this permanent magnet. The present invention relates to a so-called polarized electromagnet device for moving an armature, and particularly to a polarized electromagnet device for horizontally reciprocating an armature.

Prior art Figure 1 shows a polarized electromagnet device in the prior art.
It is an r-plane view. The U-shaped yoke l made of magnetic material is
It has a left side piece 2 and a right side piece 3 whose inner surfaces are polarized surfaces, and a horizontal piece 4 that connects the left and right side pieces 2.3. York 5
faces the horizontal piece 4 with a length shorter than 2°3 of the left and right side pieces of the yoke l. Left and right outside of yoke 5 +f! ] to the polarity 11
1J6, 7. Eight permanent magnets are interposed between the yoke 1 and the yoke 5, and the direction of the magnetization axis corresponds to the fresh blood.

Yoke 1, yoke 5, and permanent magnet 8 are arranged one above the other as one block. The armature 9 is of a horizontal multi-row type and consists of a horizontal rod 12 and an armature plate 1 (1, l1).

The armature brake) 10 is an IIM whose both sides are polarized.
, +13. , 14. The armature plate 11 has its inner and outer openings serving as armature surfaces 15 and 16. The armature surface 13 of the armature plate 10 faces the armature surface 6 of the yoke 5, and the armature surface 14 of the armature plate 10 faces the yoke l.
1 o'clock to the armature surface 17 of the left piece 2. armature plate 11 faces the armature surface 7 of the yoke 5, and the armature surface 16 of the armature plate 11 faces the armature surface 1 of the yoke l.
Confront 8. There is an air gap 19 between the armature surface 6 and the armature surface 13, and an air gap 20 between the armature surface 14 and the armature surface 17. Also, the armature surface 7 and the armature trr
There is an air gap 21 between the + 15 and the armature surface 16, and an air gap 22 is loaded between the armature surface 16 and the armature surface 18. The horizontal body 12 of the armature 9 passes through the coil 23. .

The magnetic flux of the permanent magnet 8 is shown by a solid line X, and the magnetic flux of the coil 23 is shown by a broken line y. The magnetic flux xH of the permanent magnet 8 flows as follows.

N pole of permanent magnet 8 → Yoke 1 → Air gaps 20 and 22 → Amachi V plates 10 and 11 - Yoke 5
- Becomes the S pole of the permanent magnet 8.

The magnetic flux y of the coil 23 flows as follows.

Coil 23 → horizontal shaft 12 → armature plate 10 → air gap 19 → yoke 5 → air gap 21 → armature plate 11 → water rod 12.

Also, from the armature plate 10 to the air gap 20→
Yoke 1 → Air gap 22 → Armature plate 11
→ Also serves as horizontal bar 12.

Therefore, due to the magnetic flux x + Y, the armature 9 is moved to the axis @
25 to the right in FIG.

If the direction of the current flowing through the coil 23 is reversed, the armature 9 will move to the left in FIG.

Generally, such a polarized electromagnetic device is used to drive an externally housed spring load (not shown). FIG. 2 shows a state in which the magnetic attraction force and spring load are matched by the polarized electromagnet device shown in FIG. 1. In FIG. 2, curve A shows the attractive force characteristics of coil 23 in the rated excitation state, and curve BFi shows coil 23
Curve C shows the attractive force characteristic when the coil 23 is in the open excitation state, and curve dD shows the attractive force characteristic when the coil 23 is in the non-excited state. The curve Ei also shows the spring load. Furthermore, in FIG. 2, a line L1 at the left end indicates the position where the air gap 20.21 closes, and a line L2 at the right end indicates the position where the air gap 19.22 closes.

As is clear from FIG. 2, when the coil 23 is not energized, it remains stable with the air gaps 20 and 21 closed;
When a voltage is applied to the coil 23, the air gap 19, 22 is closed. If this spring load is biased to a part of the amount of movement of the armature 9 as shown in FIG. 2, it is not easy to match the magnetic attraction force and the spring load in the polarized electromagnet device shown in FIG. For example, at points a and 2 shown in Fig. 2, there may be a problem in which the armature 9 succumbs to the spring load and stops midway, or a problem in which the holding force of the armature 9 is insufficient and the vibration resistance and impact resistance characteristics are poor. .

Object The object of the present invention is to solve the above-mentioned technical problem and provide a polarized electromagnet device that prevents the armature from stopping midway due to the spring load.

Embodiment FIG. 3 is a basic structural diagram of an embodiment of the present invention. The U-shaped first yoke 30 made of a magnetic material has a left side piece 31 and a right side piece 32 whose inner surfaces are polarized surfaces, and a horizontal piece 33 that connects the left and right side pieces 31 and 32. This horizontal piece 33 has a notch 34 cut out in a direction from the front to the back of the paper in FIG. The second yoke 35 has a length shorter than the left and right side pieces 31 and 32 of the first yoke 30, and is paired with the horizontal piece 33. The left and right outer surfaces of the second yoke 35 are polarized surfaces 36 and :37. The permanent IΩ stone 38 is interposed between the first yoke 30 and the second yoke 35, and its magnetization axis direction is perpendicular. The first yoke 30, the second yoke 35, and the permanent magnet 38 are arranged one block above the other.

The armature has 39 pieces and is of the horizontal transition type, consisting of horizontal #40 and armature plates 41 and 42. The armature plate 41 has polarized surfaces 4:3 and 44 on its inner and outer sides. The upper and lower ends of the armature plate 41 are fitted into the 9J notches 34 of the upper and lower first yokes 30, respectively. The armature plate 42 has polarized surfaces 45 and 4'6 on both its inner and outer surfaces. The armature surface 43 of the armature plate 41 is connected to the armature surface 36 of the second yoke 35 and the armature surface 47 of the J defect 34. The armature surface 48 of the left piece 31 and the armature surface 49 of the vJ input part 34 are connected to the armature surface 45 of the armature plate 42.
The armature surface 46 of the armature plate 42 faces the armature surface 50 of the right side piece 32 of the l-th yoke 30.

An air gap 51 is provided between the armature surface 44 and the armature surface 48 and between the armature surface 44 and the armature surface 49 . An air gap 52 is formed between the armature surface 36 and the armature surface 43. There is an air gap 47a between the armature surface <7 and the armature surface 43.

There is an air gap 53 between the armature surface 46 and the armature surface 50, and an air gap 54f between the armature surface 45 and the armature surface 37. A horizontal rod 40 of the armature 39 passes through the coil 55.

The magnetic flux of the permanent magnet 38 is r/i, and the magnetic flux of the coil 55 is y. Permanent magnet: 38 (1 flux X flows as follows.

N pole of water entry ring 38 - horizontal piece 33 of first yoke 3o → air gear 7' 47 a → armature plate 41 → air gear young 51 → left side piece 31 of first yoke 3o → air gap 51 → armature play) 41 → machine gear 52 → second yoke 35 → S1 blow of Mizuku magnet 38.

Also, the N pole of the permanent magnet 38 - the horizontal piece 33 of the first yoke 3o
-> Air gear young 47a -> Armature grate 41 -> Air gap 52 - Water container 1a (X 38 (7) Also serves as the S pole.

Also, the N4 section of the permanent magnet 38 - the horizontal piece 33 of the yoke 3o - the right side piece 32 of the first yoke 3o - the air gap 53 - 4 the armature plate 42 - 4 the air gear young 54
-Second yoke 35-Also serves as the S pole of the Gyukyu Senshi 38.

The magnetic flux y of the coil 55 flows as follows.

1-Air gap 51 → left side piece 31 of first yoke 3o
- Air gap 51 on the notch q4 side → Amajiya plate 41 → Air gap 4 a → Horizontal piece 33 → Right side piece 3
2→air gear young 53→armature plate 42→horizontal rod 4o.

Also, from the armature plate 41 to the air gap 52-
The second yoke 35 → air gap 54 → armature plate 42 → horizontal bar 4o.

Therefore, the magnetic flux x+'Y is in the same direction in the air gap 5253 and in opposite directions in the air gaps 47a, 51 and 54, so the armature 3
Due to the attraction force in the same direction, the arrow W is drawn along the axis Q.
move in the direction of

As the armature 39 moves in the direction of the arrow W, the magnetic flux y
becomes a ball current, and the magnetic flux y flows as follows.

Coil 55 - horizontal bar 4o → armature plate 41 - large part 34 → horizontal piece 33 of first yoke 3o - right side piece 32 → armature plate 42 → horizontal bar 4° Since the magnetic resistance of the magnetic circuit is very small, the armature 39's magnetic attraction increases rapidly.

If the direction of the current flowing through the coil 55 is reversed, the armature 39 moves in the opposite direction to the arrow W.

Generally, such a polarized electromagnetic device is used to drive an externally housed spring load (not shown). FIG. 4 shows the trapezoidal bending of the magnetic attraction force and spring load caused by the polarized type 1000 stone-mounted box shown in FIG. 3.

In FIG. 4, curve F is the rated excitation state of coil 55) R
The curve G shows the attraction force characteristics at 1 tooth of the coil 55! Curve 1 shows the attractive force characteristics in the 1JIJ excitation state.
1 shows the attractive force ability of the coil 55 in the open energized state, and the curve J shows the attractive force ability of the fill 55 in the non-energized state.The curve also shows the spring load.
In the figure, the leftmost line Ll is the air gap 51.
54 indicates the closed position, and the line L2 at the right end is the air gap 47a.

53 indicates the closed position.

As is clear from FIG. 4, when the coil 55 is not energized, it is stable in a state where the air gaps 51, 54'r are closed, and when a voltage is applied to the coil 55, the air gaps 47a and 53 are closed. to move to. Even if the spring load shown by the curve is biased as shown by points l and m, the curve G and the curve HK do not intersect, so the spring negative gear jK is matched and the armature 39 does not become heavier in the middle.

FIG. 5 is a diagram of the prefecture tree structure of another embodiment of the present invention. The U-shaped first yoke 60 made of a magnetic material has an inner side (JJI
It has a left side piece 61 and a right side piece 62 which have polarized surfaces, and a horizontal piece 63 that connects the left and right side pieces 61 and 62. The horizontal piece 63 has an inwardly projecting capital 63a.

The second yoke 65 includes left and right side pieces 61.6 of the first yoke 60.
It has a length shorter than 2 and faces the horizontal piece 63. The left and right outer surfaces of the second yoke 65 serve as armature surfaces 66 and 67. The water/fire magnet 68 is interposed between the first yoke 60 and the second yoke 65, and its magnetization axis direction is perpendicular. first yoke 60,
The second yoke 65 and the water/fire magnet 68 are arranged one above the other as one block.

The armature 69 is of a horizontal transition type and consists of a horizontal bar 7 () and armature plates 71 and 72. The armature plate 71 has dust-proof surfaces 73 and 74 on both its inner and outer sides. Further, the inward side of the upper Fld11 end of the armature plate 71 faces the protruding portion 63a6D and the surrounding wall 63b. Amateur great 71's touch song 73 plays against 2nd Yotaro 5's touch mrkJ66. Also amateur plate 7
The armature surface 74 of the first yoke 60 faces the armature surface 78 of the left piece 61 of the first yoke 60 . Armature surface 75 of armature plate 72
faces the armature surface 67 of the second yoke 65, and the armature surface 76 of the armature plate 72 faces the armature surface 80 (/C) of the right side piece 62 of the first yoke 60.

An air gap 81 is provided between the contact surface 74 and the contact surface 78. An air gap 82 is provided between the contact surface 73 and the contact surface 66. It 6
1c month with 3b is air gear young 71a. There is an air gap 8 between the armature surface 75 and the armature surface 67.
What do you do with 4? An air gap 83 exists between the contact surface 76 and the contact surface 80 . The coil 85 has an armature 69
A horizontal bar 70 passes through it.

The magnetic flux of the water/fire magnet 68 is shown by real #X, and the magnetic flux of the coil 85 is shown by a broken line y. The magnetic flux X of the water/fire magnet 68 flows as follows.

N coffin of water/fire magnet 68 → horizontal piece 63 of first yoke 60 − left side piece 61 of first yoke 60 → air gap 81 → A F
gear plate 71 - air gap 82 → second yoke 6
5-S becomes the south pole of the water/fire magnet 68.

Nm of the enclosed water/fire magnet 68 - horizontal piece 63 - air gap 71a → armature play) 71 → construction gear young 82 →
The second yoke 65 also becomes the S pole of the Hiku magnet 68.

Also, the N pole of the water/fire magnet 68 - the horizontal piece 63 - the right piece 62 -> the air gap 83 -> the armature plate 72 -> the air gap 84 -> the second yoke 65 -> the S pole of the Hikyu magnet 68.

Next, the magnetic flux y of the coil 85 flows as follows.

Coil 85 -> horizontal rod 70 - armature plate 71 -> air gap 81 - left side 61 of first yoke 60 - horizontal piece 63 - right side 62 -> air gap 83 -> armature plate 72 - horizontal rod 70.

Also, from amateur plate 71 to air gatsu 7'82
-%2 yoke 65 -> air gap 84 -> armature plate 72 - also serves as horizontal bar 70.

Also, from the armature plate 71 to the air gap 71a
-4'4 exit 63a → horizontal piece 63 → right side piece 62 → air gap 83 → armature plate 72 - horizontal rod 70.

Therefore, the magnetic fluxes x and y are in the same direction in the air gap 82° 83, and in opposite directions in the air gaps 81, 71a, and 84, and the armature 69 is moved by the attraction force in the same direction. Move in the direction of W.

As the armature 69 moves in the direction of the arrow W, the magnetic flux y
becomes the mainstream, and the magnetic flux y flows as follows.

Coil 85 - horizontal rod 70 -> armature plate 71 - protrusion 63 a - horizontal piece 63 - right side piece 62 - armature plate 72 -> water rod 70.

Since the magnetic resistance of the anaerobic circuit formed in this state is very small, the magnetic attraction force of the armature 69 suddenly increases.

If the direction of the stream flowing through the coil 85 is reversed, the armature 69 will move in the opposite direction to the arrow W.

Similar to the embodiment described above, the alignment state between the externally installed spring load (not shown) and the magnetic attraction force generated by this polarized electromagnet device is shown below! , as shown in Figure 4.

Therefore, in this embodiment, the armature 69 matches the spring load and does not stop midway.

FIG. 6 is a basic structural diagram of still another embodiment of the present invention. This embodiment is different from the embodiment shown in FIG. 5 in the first yoke 60, but the other configurations are the same. In FIG. 6, the same components as those shown in FIG. 5 are given the same reference numerals. In FIG. 6, the first yoke 90 includes a left side piece 91 and a right side piece 92, each having an inward facing surface.
A horizontal piece 93 that connects left and right side pieces 91 and 92 is published.

The horizontal piece 93 has a 9-notch bent end 90. cut out at right angles inward toward the left side piece 91. The first and second yokes 65 having a length Jk are shorter than the left stone side piece 91°92 of the first yoke 90, and are opposite to the water piece 93. 2nd yoke 6
The left and right outer songs of No. 5 are called 66.67. The water-filled magnet 68 is interposed between the yoke 90 and the yoke 65, and its 4-axis direction is perpendicular to 11-. 1st yoke 90. The second yoke 65, the permanent one, and the base stone 68 are one
Allocate to one person as a block.

The armature 69 is horizontally transitional and deflects from the horizontal bar 70 and armature plates 71 and 72. The armature plate 71 has both its inner and outer surfaces serving as armature surfaces 73 and 74. The armature surface 73 of the armature plate 71 is connected to the second yoke 6
The armature surface 66 and the notch curve of 5 are in contact with the tangent 41 of the capital 90a and the quotient 93a. The armature surface 74 of the armature plate 72 is aligned with the armature surface 98 of the first yoke 90 . The armature surface 75 of the armature plate 72 faces the armature surface 67 of the second yoke 65, and the armature surface 76 of the armature plate 72 faces the armature surface 67 of the second yoke 65.
faces the armature surface 99 of the right piece 92 of the first yoke 90.

There is an air gap 81 between the armature surface 74 and the armature surface 98.
has. There is an air gap 82 between the contact 4#, 73 and the contact 111166. Furthermore, there is an air gap 93b between the armature surface 73 and the armature surface 93a. An air gap 84 is sealed between the armature surface 75 and the armature surface 67. An air gap 83 is formed between the armature surface 76 and the armature surface 99.

The coil 85 is penetrated by the horizontal 4$70 of the armature 69.

The magnetic flux of the permanent magnet 68 is shown by a solid line X, and the magnetic flux of the coil 85 is shown by a broken line y. The magnetic flux X of the permanent magnet 68 flows as follows.

N pole of permanent magnet 68 - horizontal piece 93 of first yoke town O - right side piece 91 of first yoke 90 -> air gap 81 - armature plate 71 - air gap 82 -> second yoke 6
5 → becomes the S pole of the Hiku magnet 68.

In addition, water input (N pole of play slot 68 - horizontal piece 93-1. IJ notched bent part 90a - air gap 931) → armature plate 71 → air gap 82 → second yoke 65-7
It also serves as the S pole of the permanent magnet 68.

It also becomes the N pole of the water-immersed magnet 68 - the horizontal piece 93 - the right piece 92 -> the air gap 83 -> the armature plate 72 -> the air gap 84 - the second yoke 65 -> the S pole of the Hikyu stone 68.

Next, the magnetic flux y of the coil 85 flows as follows.

Coil 85 -> horizontal rod 70 -> armature plate 71 -> air gap 81 -> left piece 91 of first yoke 90 -> horizontal piece 93 -> right measuring piece 92 - air gap 83 -> armature plate 72 -> horizontal forest 70.

From the armature plate 71 to the air gap 82 →
Second yoke 65 -> air gap 84 - armature plate 72 - horizontal $70.

Also, the air gap from the armature plate 71 is 9:3.
b → horizontal piece 93 → right side piece 92 - air gap 83 -
Amateur plate 72 → horizontal keyaki 70.

Therefore, the magnetic flux x r 3' is in the same direction in the air gaps 82, 83, and in the air gaps 81, 84, 9
3b, the armature 69 moves in the direction of the arrow W along the axis Q due to attraction forces in the same direction.

As the armature 69 moves in the direction of the arrow W, the magnetic flux y
becomes the mainstream, and the magnetic flux y flows as follows.

Coil 85 - horizontal rod 70 -> armature plate 71 - notch bent portion 90a - horizontal piece 93 - right side piece 92 -> armature plate 72 -> horizontal rod 70.

Since the magnetic resistance of the magnetic circuit in such a state is very small, the magnetic attraction force of the armature 69 increases rapidly.

If the direction of the current flowing through the coil 85 is reversed, the armature 69 moves in the opposite direction to the arrow W.

Similar to the previous embodiment, the spring negative m installed externally
(not shown) and the magnetic attraction force generated by this polar stack electromagnet device are shown in FIG. 4.

Therefore, in this embodiment as well, the armature 69 is aligned with the spring negative 1ilr and does not stop midway.

According to Kiensu, the horizontal piece of the first yoke is
By providing the armature's left and right armature plates and making the upper and lower sides longer than the other armature plate so that one of the left and right armature plates of the armature extends one hole into the 9-hole section, the magnetic attraction force of the armature is As the number of cores increases, the number of cores becomes thicker, and it becomes possible to easily align the load even with a biased external load.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the basic structure of the prior art Hyugokuri'ichi magnet device. Figure LI+J2 is a graph showing the characteristics of the magnetic attraction force and spring load of the polar stack electromagnet device shown in Figure 951. A basic structural diagram of the first embodiment of the invention, FIG. 4 is a graph showing the characteristics of magnetic attraction force and spring load of the embodiment of FIG.
The figure is a basic structural diagram of another embodiment of the present invention, and FIG. 6 is a basic landscaping diagram of still another embodiment of the present invention. 30.60.90・・1st yoke, 31.61°91・
...Left side, 32,62.92...Right side, 33゜6
3.93...Horizontal piece, 35.65, 2nd yaw, 36.37, 43, 44, 45, 46, 48, 50.
66,. 67.73, 74, 75, 76.78°80.
98.99...Archive surface, 38.68...Water entry magnetic filter,
39.69...amateur, 41,42,71°72.
・Amateur plate, 40.70...Mizumo stick, 34・
・Notch part, 63a... Projection part, 90a... Notch bending part Agent Patent Attorney Kei Nishi Part 1 Figure 2 Pliφ1 of Dengma τ Procedural Amendment 1, Case Indication Patent Application 1982 -23517 2. Name of the invention Polarized electromagnet device 3. Relationship with the amended case Applicant address name (58F) Matsushita Electric Works Co., Ltd. Representative 4, Agent address 1-13 Nishihonmachi, Nishi-ku, Osaka No. 38 Emerging Building Country Equipment EX 0525-5985 INTAPT
J International FAX GIII & GII (06)538
-02476, Detailed Description of the Invention column of the specification to be amended, Drawing 7, Contents of the amendment (1) Line 17 of page 4 of the specification is corrected as follows. Note 1 → Air gaps 19 and 21 → Yoke 5 → S pole of permanent magnet 8. (2) Line 13 of page 6 of the specification is corrected as follows. At this point, the armature 9 is defeated by the attractive force or spring load of the armature 9, and the armature 9 stops working. Note 41→air gap 52→second yoke 35→hiku magnet 38 (4) Lines 4 to 5 of page 12 of the specification are corrected as follows. Transition. Even if the spring load shown by the song MK is biased as shown in FIG. 4, correct the curve G and (5) line 19 on page 17 of the specification as follows. write down The armature surface 74 of the armature plate 71 is corrected on page 18, line 18 of the (6) specification as follows. Note 93 → Left piece 91 of first yoke 90 → Air gear (7) Figures 2, 4, and 6 of the drawings are corrected as shown in the attached sheet. Above Figure 2 Figure 4 Transfer amount to amateur Figure 6-31=

Claims (3)

[Claims] (1) A U-shaped first yoke including a horizontal piece that connects left and right pieces with the inner side as the polarizing surface, and facing the horizontal piece that is shorter than the distance between the left and right pieces, and the left and right outer surfaces as the polarizing surface. a second yoke, a permanent magnet interposed between the horizontal piece of the first yoke and the second yoke with their magnetization axes perpendicular and arranged above and below; It is a horizontally transition type armature that separates from each armature surface of the two yokes, and this armature has both inner and outer surfaces that are opposite to the armature surfaces of the left and right side pieces of the upper and lower first yokes as armature surfaces. In a shaped electromagnet device that includes left and right armature plates and a horizontal bar that connects the left and right armature plates, the shaped electromagnet device includes such an armature, and has a coil through which the horizontal bar can be horizontally moved. The horizontal piece of the first yoke is provided with a large portion, and one of the left and right armature plates of the armature is made longer in the upper and lower lengths than the other armature plate so that one of the left and right armature plates fits into the notch line. type electromagnet device. (2) The scope of patent a claimed in item 1, characterized in that the horizontal piece of the first yoke has an inwardly protruding protrusion facing the inner surface of both ends of one of the left and right armature plates of the armature. Yes) i! j! , type electromagnetic device. (3) A notch is formed in the horizontal piece of the first yoke so as to be aligned with the inner surface of one of the ends of the left and right armature plates of the armature. The shaped electromagnet device according to item 2.