Base plate and key assembly

Abstract

The disclosure provides a base plate adapted for disposing a support unit. The base plate includes a thermally sensitive material plate and a connecting member. The connecting member includes a junction part joined to the thermally sensitive material plate, and a connection part extending from the junction part. The connection part protrudes from a surface of the thermally sensitive material plate. A key assembly are also provided.

What is claimed is: 
     
         1 . A base plate adapted for disposing a support unit, the base plate comprising:
 a thermally sensitive material plate; and   a connecting member comprising a junction part joined to the thermally sensitive material plate, and a connection part extending from the junction part, wherein the connection part protrudes from a surface of the thermally sensitive material plate, wherein the thermally sensitive material plate comprises a first surface and a second surface opposite to the first surface, the connection part protrudes from the first surface and/or the second surface of the thermally sensitive material plate for connecting the support unit, the thermally sensitive material plate comprises a through hole penetrating the first surface and the second surface, the thermally sensitive material plate comprises at least one slot arranged beside the through hole, the at least one slot penetrates the first surface and the second surface, and the junction part is filled in the through hole and the at least one slot.   
     
     
         2 . The base plate according to  claim 1 , wherein the thermally sensitive material plate may be a thermoplastic fiber composite material plate, or a remodelable thermosetting plate material. 
     
     
         3 . The base plate according to  claim 1 , wherein a material of the connecting member is different from a material of the thermally sensitive material plate, and the thermally sensitive material plate comprises a junction region, the junction part of the connecting member is joined to the junction region. 
     
     
         4 . The base plate according to  claim 3 , wherein the material of the connecting member is plastic and is integrally formed with the thermally sensitive material plate by injection molding. 
     
     
         5 . The base plate according to  claim 3 , wherein the junction region is surface-processed or surface-treated, and the junction part is bonded to the junction region. 
     
     
         6 . The base plate according to  claim 3 , wherein the thermally sensitive material plate comprises a recess part recessed on the first surface or the second surface, and the junction part is filled in the recess part. 
     
     
         7 . The base plate according to  claim 5 , wherein the junction region comprises a recess part recessed on the first surface or the second surface, and the junction part is filled in the recess part. 
     
     
         8 . The base plate according to  claim 6 , wherein the through hole communicating with the recess part to form a stepped through hole penetrating the first surface and the second surface, and the junction part is filled in the stepped through hole. 
     
     
         9 . The base plate according to  claim 8 , wherein the stepped through hole of the thermally sensitive material plate comprises a first portion and a second portion, a hole diameter of the first portion or the second portion is larger than a hole diameter of the second portion or the first portion, and the junction part is filled in the stepped through hole. 
     
     
         10 . The base plate according to  claim 3 , wherein the thermally sensitive material plate comprises a protrusion structure protruding from the first surface or the second surface around the through hole, and the junction part is filled in the through hole. 
     
     
         11 . The base plate according to  claim 10 , wherein the protrusion structure is formed a recess recessed on the second surface, the recess communicates with the through hole, and the junction part is filled in the through hole and the recess. 
     
     
         12 . The base plate according to  claim 1 , wherein the at least one slot located around the through hole. 
     
     
         13 . The base plate according to  claim 8 , wherein the at least one slot located around the stepped through hole, and the junction part is filled in the stepped through hole and the at least one slot. 
     
     
         14 . The base plate according to  claim 10 , wherein the at least one slot located around the protrusion structure. 
     
     
         15 . The base plate according to  claim 1 , wherein a bottom of the junction part is flush with the second surface, protrudes from the second surface, or part extends along the second surface. 
     
     
         16 . The base plate according to  claim 8 , wherein a bottom of the junction part is flush with the second surface, protrudes from the second surface, or part extends along the second surface. 
     
     
         17 . The base plate according to  claim 10 , wherein a bottom of the junction part is flush with the second surface, protrudes from the second surface, or part extends along the second surface. 
     
     
         18 . The base plate according to  claim 12 , wherein a bottom of the junction part is flush with the second surface, protrudes from the second surface, or part extends along the second surface. 
     
     
         19 . The base plate according to  claim 13 , wherein a bottom of the junction part is flush with the second surface, protrudes from the second surface, or part extends along the second surface. 
     
     
         20 . A key assembly, comprising:
 the base plate according to  claim 1 ;   a keycap disposed on the base plate; and   the support unit disposed between the keycap and the base plate, wherein a bottom end of the support unit is pivotally connected to the connecting member of the base plate.   
     
     
         21 . The key assembly according to  claim 20 , wherein the base plate comprising:
 a hollow region; and   a backlight module disposed under the base plate.   
     
     
         22 . The key assembly according to  claim 21 , wherein the backlight module comprising:
 a reflective layer;   a light-guiding layer disposed on the reflective layer;   a light emitting unit located beside the light-guiding layer; and   a light-shielding layer disposed on the light-guiding layer and comprising a transparent region, wherein light emitted by the light emitting unit is adapted to enter the light-guiding layer, pass through the transparent region of the light-shielding layer, and then exit through the hollow region of the base plate.   
     
     
         23 . The key assembly according to  claim 22 , wherein the light-shielding layer comprises a hole corresponding to a bottom portion of the connecting member, and the bottom portion of the connecting member is housed in the hole. 
     
     
         24 . The key assembly according to  claim 22 , wherein a bottom of the connecting member abuts an upper surface of the light-shielding layer.