Abstract:
A motor driver includes a circuit board and a connection apparatus. The connection apparatus includes two connection components. Each connection component includes two connection portions and a number of pins. The two connection components are mounted to the circuit board to connect to a positive pole and a negative pole of the circuit board correspondingly via the number of pins. The two connection portions are configured for being connected to wires.

Description:
BACKGROUND 
       [0001]    1. Technical Field 
         [0002]    The present disclosure relates to a motor driver and a connection apparatus of the motor driver. 
         [0003]    2. Description of Related Art 
         [0004]    In the field of industrial controls, a plurality of motors together used in a system is common. As a result, there must be a plurality of motor drivers to control the motors. However, connecting wires among the plurality of motor drivers for them to use a common power supply is not an easy task. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0005]      FIG. 1  is an exploded, isometric partial view of an exemplary embodiment of a circuit board of a motor driver, including a connection apparatus. 
           [0006]      FIG. 2  is an assembled view of the connection apparatus and circuit board of  FIG. 1 . 
           [0007]      FIG. 3  is an isometric view of three motor drivers each using the connection apparatus of  FIG. 1 . 
       
    
    
     DETAILED DESCRIPTION 
       [0008]    Referring to  FIG. 1 , an exemplary embodiment of a motor driver  5  includes a circuit board  10  and a connection apparatus  20 . The connection apparatus  20  includes a first connection component  200  and a second connection component  300 . In one embodiment, the first connection component  200  and the second connection component  300  have the same configuration. It can be understood that the motor driver  5  further includes other components, such as a controller, however they are not shown in  FIG. 1 . 
         [0009]    Each of the first and second connection components  200  and  300  includes a base  210 , two sidewalls  230  perpendicularly extending from opposite sides of the base  210 , and two pairs of pins  232  extending from a corresponding end of each sidewall  230 . The base  210  defines a slot  211 , and two connection portions  212  and  222  located at opposite sides of the slot  211 . In the embodiment, the connection portions  212  and  222  are screw holes. 
         [0010]    The circuit board  10  includes a first group of vias  11  electrically connected to a positive pole of the circuit board  10 , and a second group of vias  12  electrically connected to a negative pole of the circuit board  10 . Each group of the first and second groups of vias  11  and  12  includes two pairs of vias. The first group of vias  11  is configured to mount the first connection portion  200 . The second group of vias  12  is configured to mount the second connection portion  300 . 
         [0011]    Referring to  FIG. 2 , in assembly, the pins  232  of the first connection component  200  are inserted into the first group of vias  11  of the circuit board  10 , and the pins  232  of the second connection component  300  are inserted into the second group of vias  12  of the circuit board  10 . As a result, the first connection component  200  is electronically coupled to the positive pole of the circuit board  10 , and the second connection component  300  is electronically coupled to the negative pole of the circuit board  10 . In other embodiments, the pins  232  of the first and second connection components  200 ,  300  can be welded together with the circuit board  10 . 
         [0012]    Referring to  FIG. 3 , three motor drivers  40 ,  50 , and  60  with different specifications share a power supply  70 . Each motor driver  40 ,  50 ,  60  includes a connection apparatus  20 . In use, a positive pole of the power supply  70  is electronically coupled to the connection portion  212  of the first connection component  200  of the motor driver  40 , and a negative pole of the power supply  70  is electronically coupled to the connection portion  212  of the second connection component  300  of the motor driver  40 . The connection portion  222  of the first connection component  200  of the motor driver  40  is electronically coupled to the connection portion  212  of the first connection component  200  of the motor driver  50 , and the connection portion  222  of the second connection component  300  of the motor driver  40  is electronically coupled to the connection portion  212  of the second connection component  300  of the motor driver  50 . The connection portion  222  of the first connection component  200  of the motor driver  50  is electronically coupled to the connection portion  212  of the first connection component  200  of the motor driver  60 , and the connection portion  222  of the second connection component  300  of the motor driver  50  is electronically coupled to the connection portion  212  of the second connection component  300  of the motor driver  60 . As a result, the motor drivers  40 ,  50 , and  60  can conveniently share the power supply  70 . It can be understood that one motor driver is electronically coupled to another motor driver via wires  80 , the motor driver  40  is electronically coupled to the power supply  70  via the wires  80 , and the wires  80  are connected to the connection portions  212  and  222  via screws  90 . 
         [0013]    The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above everything. The embodiments were chosen and described in order to explain the principles of the disclosure and their practical application so as to enable others of ordinary skill in the art to utilize the disclosure and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those of ordinary skills in the art to which the present disclosure pertains without departing from its spirit and scope. Accordingly, the scope of the present disclosure is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein.