• 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:
    The shackle springs for securing at least one component arranged according to the prior art inside the housing of the electric motor have a bending area subject to high mechanical tension. The shackle springs 1, 1 ′ according to the invention comprise at least one second bending zone, so that the mechanical tension is distributed between the two bending zones.
    公开号:KR20030010735A
    申请号:KR1020027017206
    申请日:2001-06-25
    公开日:2003-02-05
    发明作者:마포우드사미르；마르텔질로메
    申请人:로베르트 보쉬 게엠베하；
    IPC主号:
    专利说明:

    Shackle spring
    [2] A shackle spring is known from US Pat. No. 5,391,063, which has a U-shape, which fixes two magnets inside the motor housing of the electric motor. The shackle spring has one bending area. The high mechanical stress strength of the shackle springs within the flexion zone results in significantly greater mechanical stress and rapid breakage of the springs. Therefore, in the shackle spring according to the prior art, spring steel should be used as the material. Because spring steel is magnetically conductive, related magnetic field losses occur. This causes a reduction in the efficiency of the motor or the expansion of the overall space of the motor and the increase in the price of parts.
    [1] The invention relates to a shackle spring for fixing at least one component arranged in a housing of an electric motor according to the preamble of claim 1.
    [9] 1 is a shackle spring according to the present invention in an undeformed state.
    [10] 2 is a shackle spring according to the invention in an assembled state inside a housing between two parts;
    [11] 3 is another shackle spring according to the present invention.
    [3] The shackle spring according to the invention has the advantage of significantly reducing the mechanical stress of the shackle spring and raising the spring elasticity in a simple manner.
    [4] The slightly induced stress levels of the shackle springs according to the invention allow the use of inexpensive materials or weak magnetic special steels. The use of special steels with weak magnetics provides improved efficiency of the motor. The shackle spring according to the present invention allows for the generation of high restoring forces at relatively low stress levels of the material. The shape of the shackle spring also improves the rebound characteristics of the shackle spring according to the prior art.
    [5] The measures set forth in the dependent claims enable the desired improvement of the shackle springs set forth in claim 1.
    [6] It is particularly preferable to apply at least a part of the U-shaped first and / or second legs to the part. This is because the elasticity of the shackle springs thus works optimally on the part.
    [7] The width of the shackle spring is preferably implemented to be smaller than the spacing between two V-shaped sections facing each other. This is because the shackle springs are released from each other.
    [8] Embodiments of the present invention are briefly shown in the drawings and are described in detail below.
    [12] 1 shows the shackle spring 1 according to the invention in an unmodified state. The shackle spring 1 has a U-shaped base 5, to which the first leg 9 and the second leg 12 are connected in both directions. U-shaped base 5 and legs 9 and 12 form a U-shaped mold 14. At the end 15 of the first leg 9 is followed by a first V mold 25 formed of two legs 26, 28 with a common leg intersection 27. At the end 19 of the second leg 12, for example, a second V mold 29 is connected by a leg intersection 31. The second V mold 29 has two legs 32 and 33 and is open to the outside. The first V mold 25 and the second V mold 29 lie on opposite sides, for example, and the leg intersections 27, 31 are at a distance v from each other. The shackle spring 1 made of a parent material is bent by, for example, a rectangular cross section having a width b. It is preferable that the spacing v is wider than the width b of the shackle spring 1 in order to release the fixed state of the sagging spring 1 from the reservoir.
    [13] 2 shows the shackle spring 1 in an assembled state. The shackle spring 1 is assembled inside the housing 38 of the electric motor, whereby the first part 43 and the second part 44 of the housing 38 are fixed by stress. In this embodiment the magnets 43, 44 are inside the housing 38 of the stator. As a component to be fixed inside the housing 38 of the electric motor, for example, a magnetic inference element is suitable. The housing 38 has a centerline 39. The magnets 43, 44 are pressed against, for example, the inner mold of the housing 38, and at least a part of the magnet 38 is applied directly to the inner wall of the housing 38. In this case, the shackle spring 1 is located between the magnets 43 and 44 in this embodiment. Each magnet 43, 44 is pressed into the housing 38 by the elasticity of the two shackle springs 1. Instead of the second shackle spring 1 a projection is provided, for example, projecting from the inner wall of the housing 38, to which the end face 47 of the two magnets 43, 44 is applied. A shackle spring 1 is sufficient to secure the magnets 43, 44 inside the housing 38, which spring is located between opposite end faces 47 of the magnets 43, 44.
    [14] When the part is fixed inside the housing 38, the shackle spring 1 must be provided with a second projection from the inner wall of the housing 38, and the spring can be supported by the projection.
    [15] The shackle spring 1 has a first region 51 at the transition portion between the U-shaped base 5 and the legs 9, 12, a second region 52 at the leg ends 15, 19, and a leg intersection point. A third region 53 at 27 and 31 and a fourth region 54 at the transition of the legs 28 and 33 towards the end sections 35 and 36. The regions 52, 54 of the shackle spring 1 are compressed during assembly, and mechanical stresses occur in the regions 51, 52, 53. When the area 53 of the shackle spring 1 is closed, i.e., when both V molds 25 and 29 are applied, the second of the spring characteristic field in which the first V mold 25 and the second V mold 29 are bent. Steps work Since the elasticity is distributed over a number of areas, a reduction in stress on the shackle springs according to the prior art is achieved. The symmetrical structure and both insertion bevels within the area 51 are used to assemble simply and automatically into the housing 38 automatically.
    [16] 3 shows another embodiment of a shackle spring 1 ′ according to the invention. The shackle spring 1 ′ is connected to both the V molds 25 and 29 and the third V mold 60 and for example the fourth V mold 61 respectively by an improvement of the shackle spring 1 according to FIG. 1.
    权利要求:
    Claims (5)
    [1" claim-type="Currently amended] At least two parts disposed in the housing 38 of the electric motor comprising a first U-shaped cross section 14 having a first leg 9, a second leg 12 and a U-shaped base 5) 43,44, in particular the shackle springs 1,1 'for fixing the magnets,
    The shackle spring (1,1 ') comprises at least one V-shaped cross section (25,29), said cross section being connected to one of the legs (9, 12).
    [2" claim-type="Currently amended] Shackle spring according to claim 1, characterized in that the first and / or second legs (12) apply at least partly to the parts (43, 44) in plane.
    [3" claim-type="Currently amended] Shackle spring according to claim 1, characterized in that at least two V-shaped cross sections (25,29) face each other.
    [4" claim-type="Currently amended] 4. The shackle spring according to claim 3, wherein the width b of the shackle spring (1,1 ') is smaller than the spacing (v) between two V-shaped cross sections facing each other.
    [5" claim-type="Currently amended] 4. The shackle spring according to claim 1 or 3, characterized in that a weak magnetic special steel is used for the shackle spring (1,1 ').
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    同族专利:
    公开号 | 公开日
    US20030020350A1|2003-01-30|
    JP2004512789A|2004-04-22|
    EP1297604A1|2003-04-02|
    WO2002001699A1|2002-01-03|
    KR100808390B1|2008-02-29|
    DE50115773D1|2011-02-24|
    ES2358318T3|2011-05-09|
    EP1297604B1|2011-01-12|
    BR0111932A|2003-06-17|
    DE10031254A1|2002-01-10|
    US6794782B2|2004-09-21|
    JP4241034B2|2009-03-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2000-06-27|Priority to DE10031254.3
    2000-06-27|Priority to DE2000131254
    2001-06-25|Application filed by 로베르트 보쉬 게엠베하
    2001-06-25|Priority to PCT/DE2001/002290
    2003-02-05|Publication of KR20030010735A
    2008-02-29|Application granted
    2008-02-29|Publication of KR100808390B1
    优先权:
    申请号 | 申请日 | 专利标题
    DE10031254.3|2000-06-27|
    DE2000131254|DE10031254A1|2000-06-27|2000-06-27|Bow spring|
    PCT/DE2001/002290|WO2002001699A1|2000-06-27|2001-06-25|Shackle spring|
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