JPS58501249A - Fast response solenoid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Fast response solenoid Technical field The present invention relates generally to electromagnetic transducers, and in particular to short magnetic circuits and relative to the mass of the armature. This invention relates to a type of fast-response solenoid that has a relatively large operating surface.

Background technology As a result of recent advances in the field of control technology, it is now possible to quickly transform control signals into machine control actions. There is an emerging need for converters with sufficient drive power and response time to convert . Conventional transducers used for this purpose, commonly known as solenoids. As these devices are newly developed, their response times may change. and decreased with driving force. The requirements for a high-speed response, high-output trenoid are 1. U.S. Patent No. 4, issued January 11, 977, to Cyso , 003,013.

The solenoid disclosed in the above-mentioned patent is an E-type iron core solenoid formed in a spiral shape. This solenoid consists of two coaxial cylinders, which are They are the inner core and outer armature; the male threads on the inner core (, nal thread) is the female thread of the external armature (]nt, ernal thr ead) and are loosely interlocking with each other. The shape of both screws is double thread (t winstart variety’), a series of helices wound on an iron core. The coil windings are connected as follows, i.e. each ring conductor is first connected to the iron It heals and passes through the first thread groove of the heart, then returns to the second thread groove. The current is Because the flow flows in opposite directions in adjacent spiral grooves, it is extremely difficult to be magnetized. There is only a short local path, and this local path connects individual independent screw grooves with each other. The working surfaces are clearly separated by threaded grooves and are connected by lines of magnetic force.

This construction minimizes the amount of magnetic material required for a given force rating and The amount of reduction in armature mass with respect to It shall be constant independent of the force rating required in the application.

Spiral solenoids of the type described above have two drawbacks. continuous spiral coil Since it is a winding, the composite magnetic field applied to the armature has all the torque components, so the electric Provides rotational force during the operating stroke of the machine. This problem has been solved in the past by It is installed between the armature and the iron core and is processed by limiting the movement of the armature in the axial direction. These sliding mechanisms not only add to the complexity of the solenoid, but also naturally cause damage to the parts. This adds frictional resistance and reduces operating efficiency.

Another disadvantage with the helical solenoids mentioned above is that the iron core and armature are not provided. related to the fact that each is a single component dimension for specified usage. This means that each solenoid has a fixed force rating, which is limited to only a limited range of use. This means that it is only suitable. Therefore, a full range of soles with different force ratings The cost of manufacturing the noids is relatively high.

Disclosure of invention The present invention overcomes the drawbacks of prior art helical solenoids by using a unique coil winding arrangement. With modular core construction, these are available in a variety of dimensions with different force ratings. This not only makes it possible to assemble the solenoid quickly and painstakingly, but also allows the armature to It also eliminates the tendency to rotate relative to the iron r□.

According to an aspect of the present invention, the first magnetic member has a plurality of independent annular grooves along a displacement axis. Each groove, including the portion along which it rests, lies in a reference plane extending perpendicular to the axis of displacement. ing. The second magnetic member has a plurality of protrusions, each of which is a part of the first member. The width of each groove is narrower than that of the corresponding groove, and the plurality of gaps are connected to the first and second grooves. It is made between the second member and the second member. A current is passed through it to generate a magnetic field, and the first and The conductive winding that causes relative movement in the displacement axis direction between the second members is 1. multiple windings It is arranged in a groove to surround the displacement axis. The winding part is electrically A means is provided to allow current to flow in the opposite direction to adjacent windings. Ru.

According to another aspect of the invention, the first member comprises a plurality of individually separable modules. It consists of Joule-type core parts, which are arranged side by side with each other. Each of the iron core parts has a main body on which a corresponding winding part is wound, and a pair of core parts. It consists of an electrical connector and a plug, and this connector and plug are made of iron. ・When assembling, it can be rotated, and the windings of adjacent iron cores can be connected alternately, Adjacent windings allow current to flow in opposite directions.

Brief description of the drawing In the festival map: FIG. 1 is a front view of a fast-response solenoid constituting a preferred embodiment of the present invention; Figure 2 is a cross-sectional view of the solenoid shown in Figure 1, with half of the armature removed and the initial position A cross-sectional view showing the retracted armature in; Figure 3 is similar to Figure 2, but shows the armature moved to its fully extended position. Figure 4 is a cross-sectional view taken along line 4--4 in Figure 1; Figure 5 is a cross-sectional view of one end of the solenoid shown in Figure 1 to make it clearer. Cross-sectional view with parts partially removed; FIG. 6 is an exploded perspective view of two adjacent cores of the solenoid shown in FIG. 1; Figure 7 shows the state in which the non-noid according to the present invention is connected between the fixed retainer and the load. Figure 8 shows a solenoid according to the present invention housed in a storage container. Cross section shown: FIG. 9 is a sectional view showing another structure of the core portion of the solenoid according to the present invention.

Best way to implement the invention 1 to 6, the invention has the broad characteristics of a solenoid 10. Regarding electromagnetic transducers, it converts electrical energy into total mechanical motion and performs various controls. It is suitable for traveling. Is the solenoid 10 the first magnetic member 12? have, This is arranged inside a second magnetic member 14 which is cylindrical and hollow. First member 1 2 and the second member 14 are arranged on a displacement axis indicated by the numeral 36 and are respectively axially aligned relative to each other. It is installed so that it can be moved in both directions.

The first member 12 is composed of an elongated cylindrical core, which is made up of a plurality of separable modules. The core portions 16 are arranged adjacent to each other. Iron core part 16 are arranged symmetrically with respect to the displacement axis 36, and collectively they form a plurality of individually discriminated An annular groove 18 is created. Each of these grooves has a reference plane perpendicular to axis 36. essentially lying inside.

The second member 14 functions as an armature and has two elongated vertically divided semi-cylindrical parts 1.4 and 14. and 141) are aligned with the seam 13 and fixed with screws 86. 68, which are tied at several points in the axial direction. The inner wall of the second member 14 has a plurality of There are annular protrusions 20 corresponding to each groove 18 and extending into the grooves. Ru. The width of the protrusions 200 is narrower than the corresponding groove 18, and the width of the protrusions 200 and the iron A plurality of annular gaps 22 are created between the opposing surfaces of the core 16.

Each core portion 16 includes a main body portion 58 made of a magnetic material, and inside the main body 58, A circular hole 82 is hollowed out in the vertical direction, and an electrical insulator 60 is housed therein. Ru. The body portion 58 abuts the cylindrical outer surface 56 and extends directly from one end of the outer surface 56. It includes an upright annular side wall 54. On the cylindrical outer surface 56 of each body portion 58 has a pair of openings 96 and 98 at positions completely opposite to the central axis. . The insulating portions 60 are comprised of a suitable electrically insulating material and are arranged in a pair of coplanar longitudinal directions. Holes 62 and 64 extending in the vertical direction are drilled at symmetrical positions with respect to the through hole 67 extending in the vertical direction. 9, an elongated hollow rod 24 is housed in this through hole.

As clearly shown in FIGS. 6 and 7, the iron core 16 serves as the shaft sheath of the rod 24. shoulder 102 fixed to one end of rod 24 and threaded on the opposite side of rod 24. are connected to each other by a NAND and washer combination 26 attached to the held to touch. Therefore, the rod 24, the nut and one shoe combination 26, and The shoulder 102 serves as a device for holding the core portions 16 adjacent to each other in a straight line. It is understood that

The electric winding 34 generates a magnetic field that moves the first member 12 and the second member 14 relative to each other along the axis. However, this can be separated into multiple pieces, each of which can be moved individually. The winding part 38 is arranged in the groove 18 in combination with each iron core part 16. It is. Winding section 38 consists of a single turn or multiple turns of suitable wire, and includes two turns. having ends 92 and 94, each opening into a corresponding body portion 58 of core portion 16; 96 and 98.

The means for electrically connecting the winding portions 38 of the core portion 160 adjacent to each other is a pair of electrical connections. The connectors 40 are respectively housed in holes 62 and 64 in the insulating section 60.

Each connector 40 extends outward from the core 16 to which it is attached. The male insert part 42 is connected to the female insert part 42 of the adjacent iron core part 16 by frictional force. It has a female socket portion 44 which is received by the female socket portion 44.

The connector 40 collectively constitutes a pair of conductive busbars 66, which are connected to the power supply device (Fig. (not shown) with a conductor 90, which passes through the rod 24 and connects to the iron core section at the final end. Omotesho 58-! 1 (11249(4) The electrically conductive plug 104 is connected to the contact portion 44 of No. 16.

Each core part 16 has a winding part 38 and a connector 40 in exactly the same way. It is already built in. The ends 92 and 94 of each respective winding 38 are preferably It is connected to the connector 40 by, for example, a /da attachment. Individual core components is composed of an iron core part 16, a winding part 38, and a connector 40, all of which have the same structure. However, the terminal ends 92 and 94 of adjacent winding portions 38 are alternately connected to the two conductive busbars 66. The adjacent winding portion 38 connected to the Ru.

Such an alternate connection arrangement of the winding portions 38 means that every other winding portion 38 is connected during assembly of the first member 120. By rotating the core component 180 degrees relative to the adjacent core component realizable. The interleaving arrangement is better understood by referring to FIG. FIG. 6 shows the assembly process of two adjacent parts 16a and 161). has been done. Terminations 92 and 94 of windings 38 of each assembly 16a and 16b are connected to connectors 40a and 40b, respectively. However, the core assembly Since 16b is rotated 180 degrees with respect to core assembly 16a, as a result, The locations of connectors 40a and 40b of core assembly 16a are the same as those of assembly 16b. It is completely the opposite. The result of the alternating connection arrangement with The sign (+) indicates that the current flows toward the paper, and the black sign (・) indicates that the current flows toward the paper. It shows the state where it flows out from the surface towards you. Adjacent volumes due to the so-called right-handed rule The currents flowing in opposite directions within the wire portion 38 are shown by arrows 106 in FIG. generate magnetic fields of opposite rotation to each other, which are created by the protrusion 20 and the side surface 54. They merge at the interface between gaps 220. Magnetic force applied between protrusion 20 and side surface 54 moves the protrusion 20 over the axis toward the side surface 54, thus moving the second member 14 toward the axis 36. move it along.

Next, FIG. 9 shows another means for holding the core portions 16 in alignment. It is. This retaining device consists of a telescoping arrangement shown at 28, with each main body Portion 58 is provided with an annular protrusion 32 which extends to adjacent body portion 58. It is firmly fitted into the hollow annular recess 30 by frictional force. suitable adhesive A chemical compound is applied to the interface of the body portion 58 to ensure that the core portions 16 are held together. It is also possible to do so. Insulator portion 60. The first part is made of hard material. It is also possible to increase the axial strength of 12. Furthermore, the connector 46 is the connector described above. 40, but this one connects a plug 50 and a socket 48 with a connecting wire 52. The entire structure is formed within each insulator 60.

Referring now to FIG. It is installed between the control load and the screw portion 12 is used to secure one end of the first member 12. It is connected to a fixed frame 84. The second member 14 has an introduction portion 78a surrounding the rod 24. and 78t) can be formed. A bearing formed in an annular shape is Devices 80a and 80b are inserted between rod 24 and introduction parts 78a and 781). , can be made of plastic, Teflon/bronze or equivalent; A terminal end of each second member 14 is slidably retained on a rod 24. Second member 14 At one end, adjacent to rod 76, there is a threaded neck 75 which allows the screw at the end of rod 16 to It is engaged inside the grooved yoke 100.

The introduction portions 78a and 78b have annular projections 81& and 81b. A ring 69 is tightened around the circumference, and the semi-cylindrical cylinders 14a and 14b are combined. There is.

Although it is clear from the description up to now, as a result of the mounting method shown in FIG. remains fixed, and the force cylinder 2 member 14 reciprocates in the axial direction to move the load. vinegar.

In some cases, it may be desirable to place the solenoid 10 within a storage box. In that case This storage method can be realized by providing a storage means 70 as shown in FIG. The stage substantially surrounds the entire solenoid 10.

An opening 108 is provided at one end of the storage device 70 for connecting the second member 14 and the load or rod 7. It houses the means for connecting with 6. The device for tightening the first member 12 to the storage portion is the first It includes a threaded portion 72 connected to one end of member 12. External circle of second member 14 The cylinder surface is slidably close to the inner wall of the storage means 1o. The bearing is made of material 110 e.g. Teflon or the like is attached to the inner wall of the storage means 7o or the outer surface of the second member 14 and It is slipping eiL<. The means including the ring 74 includes a T-shaped extension TI of the rod 16; Regarding the embodiment shown in FIG. In other words, the two semi-cylinders 14a and 14b of the second member are spaced apart in the axial direction. Arranged annular belts placed in annular recesses dug in the outer surface of the second member 14 112.

industrial adaptability The solenoid of the present invention is well suited for quickly converting electrical signals into mechanical movements. are responsive, especially when relatively large forces are required and are dominated by solenoids Effective when it is necessary to minimize space. As a typical application example of the present invention Examples include the operation of the fuel bonder and valve mechanism.

As mentioned earlier, the solenoid/noid according to the present invention has an axial direction between the iron core and the armature. This causes relative motion, which causes current to flow in the opposite direction in adjacent coil windings 38. This is done by means of an additional magnetic field generated by the flow.

The difference compared to prior art solenoids is that the coil winding used in the present invention generates the necessary additional magnetic field and that the winding part 38 is entirely within a separate annular groove. This means that it is carried out despite the fact that it is placed in Therefore continuous Prior art solenoids with typical helical coil windings rotate or “torque”. The solenoid according to the present invention generates a magnetic field having a component of Ido does not produce anything. Therefore, the present invention provides a vector mechanism for preventing rotation between the iron core and the armature. This eliminates the need for

Furthermore, the solenoid according to the invention can be used in various applications requiring different driving forces. It can also be adapted well. The iron core shown as the second member 12 includes a plurality of Constructed of separable modular core assemblies that allow you to assemble any number of parts. They can be assembled together to match the drive power needs of individual applications.

As a result of this feature, a wide variety of tools are required when fabricating single cores of different dimensions. Equipment etc. will no longer be required.

Although the present invention has been described with reference to specific examples, it will be appreciated by those skilled in the art that the invention has been described with reference to specific examples. Therefore, various modifications may be considered. Other specifications and objectives regarding the present invention And advantages will be obtained from the festival illustrations, presentation contents and cool #drawing claims.

Claims (1)

[Claims] 1. a first magnetic body portion having a displacement axis (36); having a plurality of individual portions (16); At least some of the portions (16) of the material (12) are provided with a plurality of annular grooves (18). ) is formed in the first member (12); - the first magnetic member (12); A second magnetic field having a plurality of protrusions (20,) corresponding to each of the grooves (18). between the body member (14) and the first and second members (12, 14) that generate a magnetic field. an electromagnetic device (34) for causing relative interlocking along a displacement axis (36); converter. 2. In the electromagnetic transducer according to claim 1, at least some of the protrusions The protrusions (2o) extend into the corresponding grooves (18), and the widths of the protrusions (2o) are relative to each other. The electromagnetic transducer is narrower than the width of the corresponding groove (18). 6. In the electromagnetic transducer according to claim 1, the magnetic field generator (34) are included in a plurality of separable winding portions (38)', each of which is connected to the first member (12). ) are attached to each of the portions (16) of the grooves (16), each corresponding to the groove (1). 8) an electromagnetic transducer located within. 4. In the electromagnetic transducer according to claim 3, the winding portion (38) has one or more windings. includes several turns of conductive material, and the winding portion (38) and the first magnetic member (12). An electromagnetic transducer whose is coaxial. 5. In the electromagnetic converter according to claim 3, the winding component (38) is The adjacent winding parts (38) are connected to each other electrically, and the adjacent winding parts (38) are connected to . - An electromagnetic transducer further comprising means (40). 6. In the electromagnetic transducer according to claim 5, each of the portions (16) includes a magnetic body part (58), on which a corresponding winding part (38) is arranged. , an electrically insulating portion (60) is located inside the magnetic body portion (58), and the electrically insulating portion (60) The portion (60) is electrically connected between the magnetic body portion (58) and the connection device (40). An electromagnetic transducer arranged to create an electrically insulating relationship. 7. In the electromagnetic transducer according to claim 1. Each said portion (16) has said annular side wall (54) in a corresponding reference plane. each reference plane is perpendicular to the displacement axis (36) and the adjacent The side walls (54) of the portions (, 16) are axially spaced apart from each other and are aligned with the grooves (, 16). 18) An electromagnetic converter that produces 8. An electromagnetic transducer according to claim 1, in which each stiff and elongated member (24) each of said portions (16), and said portion (16) extends along the axis of said elongated member (24). An electromagnetic transducer that is fixed relative to the direction. 9. In the electromagnetic transducer according to claim 1. The second member (14) has first and second halves (14a). 14b), the two halves (14a, 14b) are combined with each other and tightened. electromagnetic transducer. 10. In the electromagnetic transducer according to claim 1; the first and second members ( 12, 14) and an end portion of the first member (12). proximate and for securing said first member (12) to said storage means (70); means (72), said second member being slidably attached to said storage means (70). electromagnetic transducer. 11. In the electromagnetic transducer according to claim 1, the first and second magnetic bodies An electromagnetic transducer in which the members (12, 14) are coaxial. 12. The electromagnetic transducer according to claim 1, in which the portion (16) is An electromagnetic transducer including means for coupling side by side on a line. 13, a displacement axis (36) t- having a plurality of generally annular grooves (18) therein; a first magnetic member (12), each of which is connected to one of said grooves (18), respectively; A second magnetic member (14) having a plurality of related protrusions (20) and a second magnetic member (14) that generates a magnetic field. A displacement shaft (36) is provided between the first and second members (12, 14). i=? In an electromagnetic transducer configured with a device (34) for causing relative motion of a plurality of magnetic field generating means (34) each disposed within the groove (18); A conductive winding part (38) of the winding part (38) and a current in the opposite direction between the adjacent windings of the winding part (38) an electromagnetic transducer comprising means (4o) for generating a total flow; 14. In the electromagnetic transducer according to claim 16, at least some of the The protrusions (2o) extend into the corresponding grooves (18), and the width of the protrusions (2o) is narrower than the width of the corresponding groove (18). [15, In the electromagnetic converter according to claim 16, the conductive winding portion (3 8) each can be individually separated and includes at least one turn of conductive material and includes a displacement shaft (36). and an electromagnetic transducer coaxially arranged. 16. In the electromagnetic transducer according to claim 15, generating current in the opposite direction. The means (40) for connecting the conductive windings (38) alternately An electromagnetic transducer comprising a device (42, 44, 50, 52). 17. In the electromagnetic transducer according to claim 13, the first magnetic member (12) includes a plurality of separable parts (16) that are fastened together. Each of the 91 parts (16) has the conductive winding part (38) mounted thereon. Electromagnetic converter.