Abstract:
A cable magnet ring of adjustable length and able to include anti-EMI magnets of different strengths includes a bracket and a number of pairs of magnetic blocks. The bracket includes a first connecting member and a second connecting member detachably mounted to the first connecting member. The magnetic blocks are detachably received in the first and second connecting members. The first connecting member is movable relative to the second connecting member, to adjust a length of the bracket. Through holes for receiving a cable are defined in the shape of each pair of magnetic blocks, in the first connecting member, and in the second connecting member.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure relates to a cable magnet ring. 
         [0003]    2. Description of Related Art 
         [0004]    A magnet ring is fitted about a cable for preventing electromagnetic interference (EMI). The resistance of the cable gradually increases with service life of the cable, so the effect of EMI on the cable is gradually increased. However, the magnet ring is not adjusted accordingly, thus, the magnet ring cannot shield the cable from EMI effectively after having been used for a long time. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0005]    Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, all the views are schematic, and like reference numerals designate corresponding parts throughout the several views. 
           [0006]      FIG. 1  is an exploded, isometric view of an embodiment of a cable magnet ring. 
           [0007]      FIG. 2  is a partially assembled, isometric view of the cable magnet ring of  FIG. 1 . 
           [0008]      FIG. 3  is an assembled, isometric view of the cable magnet ring of  FIG. 1 . 
           [0009]      FIG. 4  is similar to  FIG. 3 , but showing a different state of use. 
       
    
    
     DETAILED DESCRIPTION 
       [0010]    The disclosure, including the accompanying drawings, is illustrated by way of example and not by way of limitation. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean “at least one.” 
         [0011]      FIG. 1  shows an embodiment of a cable magnet ring  100  including a bracket  20  and a plurality pairs of magnetic blocks  40 . 
         [0012]    The bracket  20  includes a first connecting member  22  and a second connecting member  25 . 
         [0013]    The first connecting member  22  includes a first base  221  and a first cover  222 . The first base  221  includes a first bottom plate  2211 , a first front plate  2212  perpendicularly extending up from a front side of the first bottom plate  221 , a first rear plate  2213  extending up from a rear side of the first bottom plate  221  opposite to the first front plate  2212 , and a first end plate  2215  perpendicularly extending up from an end of the first bottom plate  221  and connected between the first front plate  2212  and the first rear plate  2213 . A wedge-shaped latching block  2216  protrudes out from an upper portion of the first front plate  2212 , and is adjacent to the first end plate  2215 . A middle of an upper portion of the first end plate  2215  defines a semicircular cutout  2217 . Inner surfaces of the first bottom plate  2211 , the first front plate  2212 , and the first rear plate  2213  define a first sleeving space  2218 . The first sleeving space  2218  is away from the first end plate  2215 . The first front plate  2212  and the first rear plate  2213  define a plurality of position holes  2219  communicating with the first sleeving slot  2218 . 
         [0014]    The first cover  222  includes a first top plate  2221 , a second front plate  2222  perpendicularly extending down from a front side of the first top plate  2221 , a second rear plate  2223  extending down from a rear side of the first top plate  2221  opposite to the second front plate  2222 , and a second end plate  2225  perpendicularly extending down from an end of the first top plate  2221 , the second end plate  2225  being connected between the second front plate  2222  and the second rear plate  2223 . A bottom side of the second rear plate  2223  is rotatably connected to a top side of the first rear plate  2213 . A resilient latching piece  2226  protrudes down from a bottom side of the second front plate  2222 . The latching piece  2226  is adjacent to the second end plate  2225 . The latching piece  2226  defines a latching hole  2227 . A middle of a lower portion of the second end plate  2225  defines a semicircular cutout  2228 . Inner surfaces of the first top plate  2221 , the second front plate  2222 , and the second rear plate  2223  define a second sleeving space  2229 . The second sleeving space  2229  is away from the second end plate  2225 . 
         [0015]    The second connecting member  25  includes a second base  251  and a second cover  252 . The second base  251  includes a second bottom plate  2511 , a third front plate  2512  perpendicularly extending up from a front side of the second bottom plate  2511 , a third rear plate  2513  extending up from a rear side of the second bottom plate  2511  opposite to the third front plate  2512 , and a third end plate  2515  perpendicularly extending up from an end of the second bottom plate  2511 , the third end plate  2515  being connected between the third front plate  2512  and the third rear plate  2513 . A wedge-shaped latching block  2516  protrudes out from an upper portion of the third front plate  2512 , and is adjacent to the third end plate  2515 . A middle of an upper portion of the third end plate  2515  defines a semicircular cutout  2517 . A substantially U-shaped first sliding shell  2518  extends out from ends of the third front plate  2512 , the second bottom plate  2511 , and the third rear plate  2513 , away from the third end plate  2515 . A plurality of hemispherical protuberances  2519  protrude out from front and rear sides of the first sliding shell  2518 . 
         [0016]    The second cover  252  includes a second top plate  2521 , a fourth front plate  2522  perpendicularly extending down from a front side of the second top plate  2521 , a fourth rear plate  2523  extending down from a rear side of the second top plate  2521  opposite to the fourth front plate  2522 , and a fourth end plate  2525  perpendicularly extending down from an end of the second top plate  2521 , the fourth end plate  2525  being connected between the fourth front plate  2522  and the fourth rear plate  2523 . A bottom side of the fourth rear plate  2523  is rotatably connected to a top side of the third rear plate  2513 . A resilient latching piece  2526  protrudes down from a bottom side of the fourth front plate  2522 . The latching piece  2526  is adjacent to the fourth end plate  2525 . The latching piece  2526  defines a latching hole  2527 . A middle of a lower portion of the fourth end plate  2525  defines a semicircular cutout  2528 . A substantially U-shaped second sliding shell  2529  extends out from ends of the fourth front plate  2522 , the second top plate  2521 , and the fourth rear plate  2523 , away from the fourth end plate  2525 . 
         [0017]    Each magnetic block  40  is rectangular, and a middle of a side of the magnetic block  40  defines a semicircular cutout  42 . 
         [0018]      FIGS. 2 and 3  show that, in assembly of the cable magnet ring  100 , the first sliding shell  2518  and the second sliding shell  2529  are slidably inserted into the first sleeving slot  2218  and the second sleeving space  2229  respectively, to facilitate the latching of the protuberances  2519  in the position holes  2219 . Thus, the first base  221  and the second base  251  cooperatively bound a first receiving space  27 , and the first cover  222  and the second cover  252  cooperatively bound a second receiving space  28 . One of the magnetic block  40  of each pair of magnetic blocks  40  is received in the first receiving space  27 , with the cutout  42  aligning with the cutouts  2217  and  2517  of the first and second bases  221  and  251 . The other magnetic block  40  of each pair of magnetic blocks  40  is received in the second receiving space  28 , with the cutouts  42  aligning with the cutouts  2228  and  2528  of the first cover  222  and the second cover  252 . The cutout  2217  of the first base  221  and the cutout  2228  of the first cover  2228  cooperatively bound a through hole  223  for receiving a cable  300  (shown in  FIG. 4 ), the cutout  2517  of the second base  251  and the cutout  2528  of the second cover  252  cooperatively bound a through hole  253  for receiving the cable  300 , and the cutouts  42  of each pair of magnetic blocks  40  cooperatively bound a through hole  43  for receiving the cable  300 . 
         [0019]    In use, a lower portion of the cable  300  is received in the cutout  2217  of the first base  221 , the cutout  2517  of the second base  251 , and the cutouts  42  of the magnetic blocks  40  received in the first receiving space  27 . The first cover  222  and the second cover  252  are rotated toward the first base  221  and the second base  251  respectively, until the latching blocks  2216  and  2516  latch in the latching holes  2227  and  2527 . An upper portion of the cable  300  is received in the cutout  2228  of the first cover  222 , the cutout  2528  of the second cover  252 , and the cutouts  42  of the magnetic blocks  40  received in the second receiving space  28 . The cable  300  is thus sandwiched between the magnetic blocks  40  for preventing electromagnetic interference (EMI). 
         [0020]      FIG. 4  shows the cable magnet ring  100  used in another state. When the resistance of the cable  300  increases after being used for a long time, the effects of EMI are increased. The latching pieces  2226  and  2526  are pulled away from the latching blocks  2216  and  2516 , to detach the latching blocks  2216  and  2516  from the latching holes  2227  and  2527 . The first cover  222  and the second cover  252  are rotated away from the first base  221  and the second base  251  respectively. The second connecting member  25  is pulled away from the first connecting member  22 . The protuberances  2519  are detached from the position holes  2219 . Therefore, the lengths of the first and second receiving spaces  27  and  28  are increased, until the protuberances  2519  are latched in other position holes  2219 . More pairs of magnetic blocks  40  can then be installed in the increased space of the first and second receiving spaces  27  and  28 . 
         [0021]    Even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and the functions of the embodiments, the disclosure is illustrative only, and changes may be made in details, especially in the matters of shape, size, and arrangement of parts within the principles of the embodiments to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.