Outer casing having waterproof function for electronic apparatus

Abstract

An outer casing having a waterproof function for an electronic apparatus includes a casing body and a side cover waterproof mechanism. The side cover waterproof mechanism includes a cover body and a limit rib. The cover body includes a plastic layer and a silica gel layer integrally disposed under the plastic layer. The plastic layer is embedded an outer interface of the casing body. The silica gel layer is embedded in an inner interface of the casing body. The limit rib is slidably disposed in an accommodation trough. Between upper and lower casing bodies of the casing body is provided with a silica gel seal ring for sealing. Thus, between the upper and lower casing bodies of the electronic apparatus and between the interfaces of the casing bodies are provided with a waterproof mechanism, respectively, to enhance the waterproof capability of the electronic apparatus.

I claim: 
     
         1 . An outer casing having a waterproof function for an electronic apparatus, comprising a casing body and a side cover waterproof mechanism disposed at a side wall of the casing body, the side wall of the casing body has an interface and an accommodation trough connected with the interface, the interface including an outer interface and an inner interface which communicate with each other; the side cover waterproof mechanism comprising a cover body and a soft limit rib connected to one end the cover body, the cover body comprising a silica gel layer and a plastic layer, the silica gel layer being integrally disposed under the plastic layer, the plastic layer being embedded in the outer interface in a plug-in way, the silica gel layer being embedded in the inner interface in a plug-in way, the soft limit rib being slidably disposed in the accommodation trough; the casing body comprising an upper casing body and a lower casing body, one of the upper casing body and the lower casing body being circumferentially formed with a silica gel groove, the silica gel groove being integrally formed a silica gel seal ring, the silica gel seal ring having a seal groove thereon along its extending direction, a lower surface of the other of the upper casing body and the lower casing body being provided with an engaging flange corresponding to the seal groove, the engaging flange being embedded in the seal groove in a plug-in way. 
     
     
         2 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 1 , wherein one end of the plastic layer is provided with a buckle for fixing the cover body on the interface, and an inner side of the outer interface has a step corresponding to the buckle, wherein after the cover body is covered on the interface, the buckle is engaged on the step. 
     
     
         3 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 2 , wherein the soft limit rib and the buckle are made of Thermoplastic Polyurethane, the silica gel layer being a liquid silica gel layer, the plastic layer being an inflexible plastic layer, the soft limit rib being integrally formed with another end of the plastic layer, a distal end of the soft limit rib being provided with a barb, an entrance of the accommodation trough being provided with a limit stopper, wherein when the soft limit rib is pulled outward relative to the accommodation trough, the barb of the soft limit rib is hooked on the limit stopper. 
     
     
         4 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 1 , wherein the side wall of the casing body is provided with a button waterproof mechanism, the button waterproof mechanism comprising a button, a hole, and a waterproof member, the button being placed in the hole, the waterproof member being disposed between the button and the hole, the waterproof member comprising a stainless steel plate and a liquid silica gel which is integrally formed to wrap the stainless steel plate. 
     
     
         5 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 4 , wherein an outer wall of the waterproof member is engaged in the hole, the outer wall of the waterproof member and the hole forming an interference, a front end of the waterproof member being provided with a trigger block, a rear end of the waterproof member having an accommodation cavity, a front end of the button being provided with a boss, the boss extending into the accommodation cavity to lean against a bottom wall of the accommodation cavity. 
     
     
         6 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 1 , wherein the silica gel groove is disposed on the lower casing body, a lower surface of the upper casing body being circumferentially provided with an engaging board, the engaging flange being integrally disposed at a lower end of the engaging board. 
     
     
         7 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 6 , wherein an engaging room is surrounded by a side wall of the lower casing body for installing the upper casing body, the seal groove being disposed in the engaging room, wherein after the upper casing body is coupled to the lower casing body, an outer wall of the engaging board of the upper casing body being tightly against an inner side of the side wall of the lower casing body. 
     
     
         8 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 1 , wherein the silica gel seal ring is liquid silica gel. 
     
     
         9 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 1 , wherein the seal groove has a curve shape, and the engaging flange has a curve shape corresponding to the seal groove. 
     
     
         10 . The outer casing outer casing having a waterproof function for an electronic apparatus as claimed in  claim 1 , wherein a top wall of the upper casing body has a rectangular through hole, a circumferential side of the rectangular through hole having an engaging step, a screen being installed on the engaging step.