Circuit board, device mounting structure, device mounting method, and electronic apparatus

Abstract

A circuit board is used in common for the first electronic apparatus as the first configuration and for the second electronic apparatus as the second configuration, and the circuit board includes an area which is used in common for installing the first electronic device in installing the circuit board into the first electronic apparatus, and for installing the second electronic device in installing the circuit board into the second electronic apparatus, wherein the first electronic device is used only for the first electronic apparatus, and the second electronic device is used only for the second electronic apparatus.

1 . A circuit board which is used in common for the first electronic apparatus as the first configuration and for the second electronic apparatus as the second configuration, said circuit board comprising an area which is used in common for installing the first electronic device in installing the circuit board into the first electronic apparatus, and for installing the second electronic device in installing the circuit board into the second electronic apparatus, 
 wherein the first electronic device is particularly used for the first electronic apparatus, and the second electronic device is particularly used for the second electronic apparatus.    
   
   
       2 . The circuit board according to  claim 1 , wherein the third electronic device is installed on the circuit board both in the first configuration and the second configuration, and the second electronic device is used instead of the third electronic device alternatively.  
   
   
       3 . The circuit board according to  claim 1 , wherein the circuit board is a single board on which a processing circuit that processes a main control of the first electronic apparatus or the second electronic apparatus is installed.  
   
   
       4 . The circuit board according to  claim 3 , wherein the single board is a motherboard.  
   
   
       5 . The circuit board according to  claim 3 , wherein the processing circuit is a CPU.  
   
   
       6 . The circuit board according to  claim 1 , wherein the first electronic device includes a drive unit for portable storage media and the second electronic device includes a display circuit.  
   
   
       7 . The circuit board according to  claim 1 , wherein a cooler to cool the second electronic device is installed on the circuit board.  
   
   
       8 . The circuit board according to  claim 7 , wherein the cooler is installed in the area.  
   
   
       9 . The circuit board according to  claim 7 , wherein the cooler is a heat sink unit that comprises: 
 a heat receiving plate that receives heat from the second electronic device by contacting the second electronic device, a heat conductor that conducts heat from the heat receiving plate to a radiation plate; and    a cooling fan that cools the radiation plate by blowing.    
   
   
       10 . The circuit board according to  claim 9 , wherein the heat sink unit has a ventilator that exhausts air from the cooling fan, and the ventilator is located near a device to connect an external memory that is installed on the circuit board.  
   
   
       11 . The circuit board according to  claim 1 , wherein an extension connector part is installed on the circuit board, said extension connector connects an extension unit that is removablly attachable to the first electronic apparatus and the second electronic apparatus.  
   
   
       12 . The circuit board according to  claim 11 , wherein the extension connector part is installed substantially adjacent to both the install position of the second electronic device on the circuit board and the install position of the third electronic device on the circuit board.  
   
   
       13 . The circuit board according to  claim 12 , wherein the second electronic device is installed at a position in the area so that the distance between the extension connector part and the second electronic device is substantially the same as the distance between the extension connector part and the third electronic device.  
   
   
       14 . The circuit board according to  claim 11 , wherein the extension connector part is installed in an overlapped area that is used both when the circuit board is installed in the electronic apparatus in the first direction and when the circuit board is installed in the electronic apparatus in the second direction.  
   
   
       15 . The circuit board according to  claim 14 , wherein an install position of the extension connector part is within a specific distance from a back face of the electronic apparatus when the circuit board is installed in the electronic apparatus, and within a specific distance from a centerline of width of the electronic apparatus.  
   
   
       16 . The circuit board according to  claim 11 , wherein the extension unit is a connection apparatus that has a plurality of connectors for peripheral apparatuses.  
   
   
       17 . The circuit board according to  claim 16 , wherein the connection apparatus that has a width substantially the same as the width of the electronic apparatus is removablly attachable to the back face of the electronic apparatus, and said connection apparatus has a projection part on which a connector being connectable to the extension connector part is located.  
   
   
       18 . An electronic apparatus in which a circuit board is installed, 
 wherein the circuit board is used in common for the first electronic apparatus as the first configuration and for the second electronic apparatus as the second configuration, said circuit board comprising an area which is used in common for installing the first electronic device in installing the circuit board into the first electronic apparatus, and for installing the second electronic device in installing the circuit board into the second electronic apparatus,    wherein the first electronic device is particularly used for the first electronic apparatus, and the second electronic device is particularly used for the second electronic apparatus.    
   
   
       19 . The electronic apparatus according to  claim 18 , wherein the electronic apparatus can be used in common for the first configuration and for the second configuration, and has a package being substantially rectangular parallelepiped shape.  
   
   
       20 . The electronic apparatus according to  claim 18 , wherein the electronic apparatus is a notebook type computer.  
   
   
       21 . A circuit board for an electronic apparatus having a plurality of electronic devices installed on the surface of the circuit board, and used in common for at least two configurations, 
 wherein an install position of at least two electronic devices on the surface of the circuit board is in a united area,    wherein said at least two devices are not installed on the surface of the circuit board in the first configuration of the at least two configurations, and are installed on the surface of the circuit board in the second configuration of the at least two configurations.    
   
   
       22 . An electronic apparatus comprising a circuit board that has a plurality of electronic devices installed on the surface of the circuit board, and is used in common for at least two configurations, 
 wherein an install position of at least two electronic devices on the surface of the circuit board is in a united area,    wherein said at least two devices are not installed on the surface of the circuit board in the first configuration of the at least two configurations, and are installed on the surface of the circuit board in the second configuration of the at least two configurations.