• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A magnet assembly is disclosed suitable for use in an impact printer to produce a magnetic field for propelling movably mounted hammer coils toward a type bearing surface. The magnet assembly is comprised of a plurality of spaced relatively thin substantially rectangular magnetic members mounted along first and second parallel rows. End bridging bars are provided which, together with the members, form a closed magnetic field path in which the flux lines extend through the thin dimension of the members in one direction in the first row and in an opposite direction in the second row. The members in the first and second rows are aligned so as to define aligned gaps, each pair of aligned gaps receiving a flat hammer coil. In one embodiment, all of the magnetic members are permanent magnets in which rare earth and Alnico type magnets are interleaved. In a second embodiment, rare earth magnets are interleaved with members of soft iron.
    公开号:SU740147A3
    申请号:SU772529049
    申请日:1977-09-20
    公开日:1980-06-05
    发明作者:Саркис Арзоуманиан Арам
    申请人:Дейта Продактс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to magnetic nodes of a printing device.
    A known magnetic assembly of a printing device containing magnetic elements of the same shape, installed with a gap in two parallel rows, and flow-forming magnetic elements forming a closed magnetic circuit G1 with the extreme magnetic elements of the rows]. 10
    The aim of the invention is to increase the efficiency of use of the node.
    This goal is achieved by the fact that some magnetic elements are made of a material having a greater differential magnetic permeability than other magnetic elements, and are arranged in alternating order.
    Fig. 1 shows an impact printing apparatus with moving coil electric breakers; figure 2 is a section aa of figure 1; Fig. 3 is a graph illustrating the demagnetization curves of the magnetic 20 material SmCo 5 and the magnetic material Alnico-8; figure 4 is a structural diagram of a magnetic node; figure 5 is the same, an embodiment; 6 is a graph illustrating the conductive reeultiruyu- m magnetic flux density B in the gap g65 (sm.fig.5) depending on the increment of the differential magnetic permeability pA any type of magnetic material, Alnico, rare-earth magnet are sandwiched materials!; Figure 7 - a graph illustrating a resultant magnetic flux density B in the gap rec (5) depending on the density of the magnetic 'flux B RE rare earth magnets which are sandwiched Alnico different magnetic materials (Alniko- 5j -6; -7; - 8; -9).
    The printing device (FIGS. 1 and 2) comprises a drum 1 having embossed symbols (not shown) that are located on the peripheral surface of the drum and are arranged in rows running parallel to the axis of the drum, node 2 of electromagnetic choppers, electromagnetic chopper 3_, paper 4, on which is printed, typewritten tape 5, mounting frame 6, module 7 of electrical breakers, magnetic module 8, tubular elements 9 and 10, mounted in parallel to each other, end plate 11, element 12: H ·· · - · '· · - -. . '··· -.
    fastenings, bored holes 13 ,. and 14, a common support member 15, a rear support portion 16, a portion 17 supporting the modules 7, a bolt 18 that is screwed into the hole 13 of the member 12, a rigid housing 19 having a multi-turn coil (not shown), conductive springs 20 and 21 , stranded cable 22, shock tip 23, support element 24 of the magnetic module, parallel rows 25 and 26, magnetic rod 27.
    The node 2 of the electromagnetic breakers consists of a mounting frame 6 and modules 7 of the electrical breakers and magnetic modules 8. The frame 6 has tubular elements 9 and 10, which · do not carry the fastening elements 12, and the end plate 11.
    The module 7 contains a common support element 15, which includes a rear Controversial section 16, the fastening module to the element 9 of the frame 6, and section 17.
    Springs 20 and 21 supply current to a coil located in the housing 19.
    The electric breaker modules 7 are arranged in a single row, located n £ and meshing the element 9 within the arcuate recess in the supporting elements by engaging the bolts 18 passing into the fastening elements 12. The ends of all the shock tips 23 are located along a common horizontal line running parallel to the axis of the drum 1 (Fig. 1.)
    The magnetic assembly consists of magnetic modules 8.
    ............ The device operates as follows.
    When the device is turned on, a force is developed in the coil body of the electromagnetic chopper 3, which ensures forward movement of the impact tip 23 to the drum 1. In this case, a magnetic field develops in the magnetic modules 8, which extends perpendicular to the plane of the coil bodies 19. .
    A magnetic assembly, consisting of magnetic modules 8, provides a certain number of gaps, the number and geometrical dimensions of which depend on the characteristics of the electrical breakers. The magnets are located (figure 2) along the rows 25 and 26, taking into account the gaps.
    The magnets are oriented so that their pole surfaces are adjacent to the gaps and the magnets generate magnetic flux along parallel rows in opposite directions. Magnetic 27 are connected to the adjacent ends of the first and second rows of magnets and thus create a closed path (magnetic flood passing through the first and second rows and magnetic rods.
    In known magnetic nodes, identical magnets from Alniko’s magnetic material are usually used, 5 which ensures the creation of a relatively low magnetic flux density in the gaps (FIG. 2), For example, from FIG. 3 it can be seen that the load line P = 3, 4 for .q of the groove (Fig. 2) crosses the demagnetization curve of the Alnico alloy at point E, where the energy product BdHd is 94% of the maximum energy product BmHm obtained at point F.
    the same load line P s 3.4 crosses the demagnetization curve SmCo 5 at point A, where the energy product BdHd is 74% of the maximum energy product BmHm obtained at point D,
    An assessment of the use of Alnico and SmCo 5 alloy magnets shows that the resulting energy product 25 is preferable in the case of using Alnico alloy, and the resulting magnetic flux density B rea is higher in the case of SmCog.
    To obtain a high magnetic flux density in the gap, it is proposed to use a combination of magnetic materials having different characteristics. So, from Fig. 4 it is seen that in order to raise the operating point of the SmCos energy product closer to its maximum value BmHm with the design of the entire device unchanged (Fig. 2), it is proposed to form a magnetic circuit in which magnets alternating from SmCo 9 material and soft gland. The value of the energy product is 96% of the maximum energy product for the point. D. An analysis of the data presented shows that in this case an increased magnetic flux density is achieved and at the same time an improved use of magnetic material is achieved, since the ratio of the energy product obtained at the operating point to the maximum value of the energy product is increased.
    uh The magnetic circuit (see Fig. 5) is formed of alternating magnets from SmCo 5 and Alnico material. This results in a higher magnetic flux density than the average flux density of these magnets, Used individually, if they are used in the same device (Fig. 2). Here, the magnetic flux density in the gaps is characteristic of 65
    SmCo s , and for magnets like Alnico.
    The curves shown in Fig. 6 give an idea of the resulting magnetic flux density Bres as a function of the differential magnetic permeability jua of various types of magnets from SmCog. The maximum magnetic flux density (relative to average magnetic flux values) for different magnetic materials can be achieved if the differential magnetic permeability takes values in the range of 1.1-7. Moreover, one group of magnets has a differential magnetic permeability equal to jm = 1.1, and the other group has a higher differential magnetic permeability, for example, jmA = 7.
    Example. A SmCog magnet having a magnetic flux density of 6650 G at P = 3.4 (FIG. 6) is interlaced with a magnet with a magnetic flux density of 5500 G at P = 3.4 and pL = 5. The result is a resulting magnetic flux density , equal to 6310 G or an increase of 235 G relative to the average magnetic flux density of both magnets, equal to 6075 G.
    7 shows the resulting magnetic flux density B res as a function of the magnetic flux density B RE of the rare earth magnet. Here, the dependences B res = f (B Rf ) are straight lines.
    A magnetic assembly containing magnets with a low differential magnetic permeability (such as rare earth magnets from SmCoj-) and arranged in alternating order · 5 'kecks with magnets with high differential magnetic permeability (such as magnets from Alnico), provides the optimal from the point of view of the magnetic flux density in the gap, and from the point of view of the energy product of the use of magnetic material.
    权利要求:
    Claims (1)
    [1]
    fastenings, bore holes 13 and 14, common support element 15, rear support section 16, section 17, supporting modules 7, bolt 18 that is screwed into the hole 13 of element 12, rigid body 19 having a multi-turn coil (not shown), conductors springs 20 and 21, stranded cable 22, impact tip 23, supporting element 24 of the magnetic module, parallel rows 25 and 26, magnetic rod 27, Node 2 electromagnetic interrupters consists of mounting frame 6 and modules 7 electrical interrupters and magnetic modules 8 Karka 6 has tubular elements 9 and 10, which are elements 12 of the fastening and end plate 11. Module 7 contains a common support element 15, which includes a rear support section 16, securing the module to element 9 of frame b, and section 17. Springs 20 and 21 is energized to a coil located in housing 19. Electric breaker modules 7 are located in a single row, which engages element 9 within an arcuate recess in supporting elements by engaging bolts 18 passing into fastening elements 12. The ends of all impact lugs 23 are located along a common horizontal line parallel to the axis of the drum 1 (Fig. 1). The magnetic node consists of magnetic modules B. The device operates as follows. When the device is switched on, develop a force in the coil body of the electromagnetic interrupter 3, which both bakes forward to the drum 1 of the impact tip 23. At the same time, in magnetic modules 8, you develop a magnetic field perpendicular to the plane of the coil body 19. .,. The magnet assembly, consisting of magnet modules 8, provides a certain number of gaps, and the size of the gages is 6 mm. The size of the gages depends on the characteristics of the electrical TSHSIFT & iSiBaiT. . The magnets are so arranged that their surfaces are located close to each other at intervals, and the magnets produce a magnetic flux along parallel RODs in opposite directions of magnetically 27 magnetically connected to 6 neighboring magnets of the first and second magnets. thus, a closed path of a magnetic flux passing through the first and second rows and magnetic rods. In known magnetic assemblies, identical magnets are usually used from Alnico magnetic material, which ensures the creation of a relatively low magnetic flux density in the gaps (.Fig.2), For example, from FIG. (FIG. 2) intersects the demagnetization curve of the Alnico alloy at point E, where the energy product BdHd is 94% of the maximum energy product WHHg obtained at point F. The same load line P s 3.4 intersects the demagnetization curve SmCog at point A, Where the energy product BdHd is 74% of the maximum energy product BmHm / obtained at point D. The evaluation of the use of Alnico and SmCog magnets shows that the resulting energy product is preferable in the case of using C1g Alnico, and the resulting magnetic flux density B is higher in the case of SmCog. To obtain a high magnetic flux density in between, it is proposed to use a combination of magnetic materials various characters. Thus, from Fig. 4, it can be seen that in order to raise the operating point of the energy product or SmCo closer to its maximum BmHm value with the unchanged design of the entire device (Fig.2), it is proposed to form a magnetic circuit in which SmCOg magnets alternate and soft iron. The value of the energy product is 96% of the maximum energy product for a point. D. Analysis of the data shows that in this case an increased magnetic flux density is achieved and at the same time an improved use of magnetic material is achieved, as the ratio of the energy product obtained at the operating point to the maximum energy product is increased. The magnetic circuit (see Fig. 5) is formed from alternating magnets of SraCog and Alnico material. At. This results in a higher magnetic flux density than the average flux density of these magnets, which are used separately, when used in the same device (Fig. 2). Here, the magnetic flux density in the gaps is typical both for SmCos magnet magnets and for Alnico magnets. The curves depicted in FIG. 6 give an idea of the resulting Bres magnetic flux density as a function of the differential magnetic permeability fj &. Different types of magnets from SmCo Maximum magnetic flux density (relative to average magnetic flux values) for different magnetic materials can be achieved if the differential magnetic permeability is in the range of 1.1-7. At the same time, one group of magnets has a differential magnetic permeability equal to | dd 1.1, and the other group has a higher differential magnetic permeability, HanpHMep ,, Example. An SmCoj magnet having a magnetic flux density of 6,650 Gs at P 3.4 (6) is laminated to a magnet with a magnetic flux density of 5,500 Gs at. As a result, the resulting magnetic flux density is equal to 6,310 Gs or an increase of 235 Gs relative to the average magnetic flux density of both magnets, equal to 6075 Gs. Fig. 7 shows the resultant magnetic flux density Bpg in the form of the FUNCTION of the magnetic flux density of the Hc rare earth magnet. Here the dependencies BPr f () are with straight lines. A magnet assembly containing magnets with a yoke of differential magnetic permeability (for example, rare earth magnets from and arranged alternately with magnets with high differential magnetic permeability (for example, magnets from Alnico) provides the optimum flux in the gap as well as in terms of the energy production using a magnetic material. Formula of the Invention A magnetic assembly of a printed device containing magnetic elements of the same a new formula, installed with a gap in two parallel rows, and flow-forming magnetic elements, formed with extreme magnetic elements of a series of closed magnetic circuit, so that, in order to keep the node efficient , some magnetic elements are made of a material that has a large differential magnetic permeability than other magnetic elements, and are arranged in alternate order.Sources of information taken into account in etxparti 1. US patent I 398306, class, 101 -93.48, 1976 (protot un).
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    同族专利:
    公开号 | 公开日
    JPS5346661A|1978-04-26|
    DE2744554A1|1978-04-13|
    FR2367612A1|1978-05-12|
    NL7710290A|1978-04-14|
    JPS598051B2|1984-02-22|
    DE2744554C2|1982-06-09|
    NL178301C|1986-03-03|
    NL178301B|1985-10-01|
    IT1088476B|1985-06-10|
    US4114532A|1978-09-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB835173A|1957-02-26|1960-05-18|Csf|Improvements in or relating to permanent magnet constructions|
    FR1272074A|1960-07-29|1961-09-22|Magnet applicable in particular in magnetic closures|
    US3285166A|1964-12-18|1966-11-15|Data Products Corp|High speed print hammer and bar magnet means|
    GB1179855A|1967-03-14|1970-02-04|Newport Instr Ltd|Improvements in or relating to Magnet Assemblies|
    US3755706A|1972-03-20|1973-08-28|Varian Associates|Miniaturized traveling wave tube|
    US3606834A|1969-06-24|1971-09-21|Mohawk Data Sciences Corp|Printer having a permanent magnet hammer mechanism|
    BE794846A|1972-02-02|1973-05-29|Neil Holdings Ltd James|PERMANENT MAGNETATION DEVICE|
    DE2232613A1|1972-07-03|1974-01-24|Spodig Heinrich|METHODS FOR IMPROVING THE MAGNETIZATION BEHAVIOR, ESPECIALLY. ALL DIFFICULT AND VERY DIFFICULT MAGNETIZABLE PERMANENT MAGNETIC FERRO, FERRI MAGNET MATERIALS FOR ACHIEVING HIGH FLOW DENSITY B DEEP M AND FIELD STRENGTH H DEEP M WHEN THE MAGNETIC IS USED AT THE SAME TIME, VERY SIGNIFICANTLY ONE|
    NL7217051A|1972-12-15|1974-06-18|
    US3983806A|1973-12-10|1976-10-05|Data Products Corporation|Hammer bank assembly|DE2837550A1|1978-08-29|1980-03-20|Ibm Deutschland|HOLDING SYSTEM FOR RELEASE DEVICES WITH A MOVEMENT ELEMENT|
    US4211493A|1978-08-30|1980-07-08|Burroughs Corporation|Impact printing apparatus|
    US4228416A|1978-09-15|1980-10-14|Hov-Air-Ship, Inc.|Composite magnet and magnetic anchoring|
    US4258623A|1979-01-30|1981-03-31|Printronix, Inc.|Print hammer mechanism having dual electromagnetic coils and pole pieces|
    US4395945A|1979-08-13|1983-08-02|Dataproducts Corporation|Hammer bank assembly|
    US4497110A|1981-09-03|1985-02-05|Dataproducts Corporation|Method of making a hammer bank assembly|
    US4324497A|1979-11-05|1982-04-13|Xerox Corporation|Print hammer assembly with amplified multi-location impacts|
    US4327639A|1979-11-05|1982-05-04|Xerox Corporation|Print hammer assembly with multi-location impacts|
    US4319096A|1980-03-13|1982-03-09|Winey James M|Line radiator ribbon loudspeaker|
    US4493568A|1983-02-22|1985-01-15|Estabrooks David A|Dot matrix printhead employing moving coils|
    US4590853A|1984-04-23|1986-05-27|General Instrument Corporation|Modular print head|
    JPH06104366B2|1986-12-17|1994-12-21|キヤノン株式会社|Impact record head|
    US5627505A|1996-07-01|1997-05-06|T. D. Wright, Inc.|Magnetic cylinder with axial extending permanent bar magnets|
    US6454686B1|2001-04-30|2002-09-24|T.D. Wright, Inc.|Modular magnetic cylinder|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/731,694|US4114532A|1976-10-12|1976-10-12|Impact printer magnet assembly|
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