Patent Publication Number: US-2013241374-A1

Title: Isolation Device

Description:
CROSS-REFERENCES TO RELATED APPLICATIONS 
     This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No. 101204861 filed in Taiwan, R.O.C. on Mar. 16, 2012, the entire contents of which are hereby incorporated by reference. 
     BACKGROUND OF THE INVENTION 
     1. Technical Field 
     The present invention relates to an isolation device, and in particular, to an isolation device that is completely isolated from the outside after being assembled. 
     2. Related Art 
     A common isolator is loaded on a printed circuit board (PCB) and used to connect electronic components on the PCB. Please refer to  FIG. 1 ,  FIG. 1  is a schematic structural view of a conventional isolator. A conventional isolator A 1  consists of an upper cover A 11 , a bottom frame A 12 , and a terminal portion A 13 . The upper cover A 11  is a board that forms four side plates A 112  at four side edges of a main body A 111  through bending, and a plurality of position bumps A 113  is provided on an internal side surface of the side plates A 112 . The bottom frame A 12  is formed through bending a board, and after bending, an extending sheet A 121  at one side edge is fixed with another side edge, presenting a rectangular shape. In addition, an external side surface of the bottom frame A 12  is provided with a plurality of position concave portions A 122 , and is provided with a via hole A 123  at a proper position used for the terminal portion A 13  to pass through. 
     When the upper cover A 11  is integrated with the bottom frame A 12 , four side plates A 112  of the upper cover A 11  cover the external side surface of the bottom frame A 12 , and the plurality of position bumps A 113  is inserted in the corresponding position concave portions A 122 , so as to fix the upper cover A 11  on the bottom frame A 12 . However, although the conventional bottom frame A 12  is fixed through the extending sheet A 121  and presents a rectangular shape, seams may appear at fixing joints due to different fixing manners. Furthermore, after the isolator A 1  is assembled, seams may appear between the side plates A 112  at four side edges of the upper cover A 11  and the bottom frame A 12  because the upper cover A 11  and the bottom frame A 12  cannot be integrated tightly. These seams lead to electric wave intrusion or leakage, affecting the communication. In addition, the conventional bottom frame A 12  is formed through bending a board, resulting in a poor structural strength. Even a slight force applied on the bottom frame A 12  produces a concavity thereon. 
     SUMMARY 
     Accordingly, an embodiment of the present invention provides an isolation device, which includes a frame body and a cover body. The frame body is formed through stamping, and includes a base body and an abutting member. The abutting member is connected at a periphery at a side of the base body. The cover body includes a main body and a clamping member. The clamping member is connected at a periphery of the main body, and is inserted in the frame body at the cover body. The abutting member abuts tightly against the clamping member, thereby seamlessly integrating the cover body and the frame body. 
     The efficacy of the embodiment of the present invention lies in that, after the cover body is inserted in the frame body, the abutting member abuts tightly against the clamping member, achieving a seamless integration effect. Additionally, the frame body has a seamless structure formed through stamping, avoiding the seam at each joint in the conventional isolator. Furthermore, the frame body is formed through stamping. Therefore, with the same thickness, the structural strength of the frame body is better than that of the conventional isolator. The frame body can desirably prevent an external force from producing a concavity thereon. 
     Detailed characteristics and advantages of the present invention are described in detail in the following embodiments. The content is sufficient for any person skilled in the art to understand and implement the technical content of the present invention. In addition, according to the content disclosed in the specification of the present invention, the scope of the patent application and the drawings, any person skilled in the art can easily understand the related objects and advantages of the present invention. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will become more fully understood from the detailed description given herein below for illustration only, and thus not limitative of the present invention, wherein: 
         FIG. 1  is a schematic structural view of a conventional isolator; 
         FIG. 2  is a schematic exterior view of an embodiment of the present invention; 
         FIG. 3  is an exploded exterior view of an embodiment of the present invention; 
         FIG. 4  is an exploded schematic view from another viewing angle of an embodiment of the present invention; 
         FIG. 5  is a partial sectional schematic view during assembly of an embodiment of the present invention; and 
         FIG. 6  is a sectional schematic view during assembly of an embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     Please refer to  FIG. 2 ,  FIG. 3  and  FIG. 4 .  FIG. 2  is a schematic exterior view of an embodiment of the present invention,  FIG. 3  is an exploded schematic view of an embodiment of the present invention, and  FIG. 4  is an exploded schematic view from another viewing angle of an embodiment of the present invention. An isolation device  1  according to an embodiment of the present invention includes a frame body  2  and a cover body  3 . 
     The frame body  2  is made of a metal material, and is formed through stamping. Seen as a whole, the frame body  2  presents a rectangular shape (as shown in  FIG. 4 ). Relevant electronic components may be disposed in the frame body  2 , which are not specifically limited herein. The frame body  2  mainly consists of a base body  21  and an abutting member  22 . The base body  21  is a hollow body. The abutting member  22  is connected at a periphery at a side of the base body  21 , and extends from the periphery towards a central position of the base body  21 . The abutting member  22  mainly consists of a connection portion  221  and an abutting portion  222 . The connection portion  221  is substantially perpendicular to the base body  21 ; an end of the connection portion  221  is connected at a periphery of the base body  21 , and the other end is connected to the abutting portion  222 . The abutting portion  222  is substantially perpendicular to the connection portion  221 , and extends from the connection portion  221  to a bottom portion of the base body  21 . In addition, an arc lead angle  223  may be provided at an outer edge of a joint between the connection portion  221  and the abutting portion  222  (as shown in  FIG. 5 ). The structure of the abutting member  22  described above is merely an example, and the present invention is not limited thereto. The composition and structure thereof may be changed according to actual design requirements, for example, the abutting member  22  is a flat board and connected at the base body  21  in a perpendicular manner, and a block corner thereof may be a round angle. 
     In this embodiment, the frame body  2  is formed with a plurality of pins  25  at the bottom portion of the base body  21  through stamping, in which the plurality of pins  25  is formed at four block corners of the base body  21 . In addition, one side wall of the base body  21  of the frame body  2  is provided with a hole-shaped via portion  26 , and the via portion  26  is used for a terminal member  5  to pass through. The terminal member  5  herein is fastened on the base body  21  through stamping, and a tin sheet (not shown) may be disposed therebetween to enhance the torsion performance. Additionally, fused tin fills a contact seam between metals. 
     The cover body  3  is made of a metal material and may be integrally formed through stamping. Seen as a whole, the cover body  3  is saucer-shaped (as shown in  FIG. 3 ). The cover body  3  mainly consists of a main body  31  and a clamping member  32 . The main body  31  is basically a rectangular sheet body, and the clamping member  32  is connected at a periphery of the main body  31 . The abutting member  22  and the clamping member  32  are designed to tightly fit with each other. When the cover body  3  is inserted in the frame body  2 , the abutting member  22  can tightly abut against the clamping member  32 , thereby seamlessly integrating the cover body  3  and the frame body  2 . The clamping member  32  mainly consists of a butting portion  321  and an extending portion  322 . The butting portion  321  is substantially perpendicular to the main body  31 ; an end of the butting portion  321  is connected at a periphery of the main body  31 , and the other end is connected to the extending portion  322 . Additionally, the extending portion  322  is substantially perpendicular to the butting portion  321 , and extends outward from the butting portion  321 . In addition, an arc lead portion  323  may be provided at an outer edge of a joint between the butting portion  321  and the main body  31  (as shown in  FIG. 5 ). The structure of the clamping member  32  described above is merely an example, and the present invention is not limited thereto. The composition and structure thereof may be changed according to actual design requirements, for example, the clamping member  32  is a flat board and connected at the main body  31  in a perpendicular manner, and a block corner thereof may be a round angle. 
     Please refer to  FIG. 5  and  FIG. 6 .  FIG. 5  is a partial sectional schematic view during assembly of an embodiment of the present invention, and  FIG. 6  is a sectional schematic view during assembly of an embodiment of the present invention. During assembly, the cover body  3  is inserted in the frame body  2 , the lead portion  323  of the cover body  3  leans against the lead angle  223  of the frame body  2 , and a force is applied to enable the lead portion  323  to move along the lead angle  223  and to be gradually inserted in the frame body  2 . During the displacement, the lead angle  223  moves along a wall of the abutting portion  222 . After assembly, the butting portion  321  of the cover body  3  is tightly adhered to the abutting portion  222  of the frame body  2 , and covering the connection portion  221  of the frame body  2  through the extending portion  322 . The butting portion  321  is tightly adhered to the abutting portion  222 , so that the cover body  3  and the frame body  2  are seamlessly integrated. 
     In the foregoing description, the block corners between the abutting member  22  and the clamping member  32  being round angles is merely an illustrative example to make the assembly of the cover body  3  and the frame body  2  easier, but the present invention is not limited thereto. The block corners between the abutting member  22  and the clamping member  32  may be right angles or other structures. 
     The abutting member abuts tightly against the clamping member, achieving a seamless integration effect. Additionally, the frame body has a seamless structure formed through stamping, avoiding the seam at each joint in the conventional isolator. Furthermore, the frame body is formed through stamping. Therefore, with the same thickness, the structural strength of the frame body is better than that of the conventional isolator. The frame body can desirably prevent an external force from producing a concavity thereon. 
     While the present invention has been described by the way of example and in terms of the preferred embodiments, it is to be understood that the invention need not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims, the scope of which should be accorded the broadest interpretation so as to encompass all such modifications and similar structures.