BACKGROUND OF THE INVENTION

Field of the Invention

The present invention generally relates to a plastic housing and, in particular to a housing device with combination structures.

Description of Prior Art

A housing device of a product not only maintains the appearance of the product, but also provides functions such as accommodating electrical components. In addition, materials of the housing device generally can be divided into metal or plastic. For plastic materials, the housing device is mostly composed of two shells which are combined with each other, wherein, the two shells are separately formed by injection molding and combined by means of snapping, locking or bonding, thereby the assembly of the product is completed.

Moreover, the fixing methods of traditional housing devices are very time consuming and difficult to disassemble in the assembly process, and now the fixing method is processed by hooks and ultrasonic welding. However, the hook structures of conventional shells are directly protruded from the wall of the shell. In order to avoid the formation of barbs or interference during injection molding that may not be demolded, traditional housings cannot form ultrasonic welding structures under hooks. Therefore, conventional housings cannot perform ultrasonic welding at the positions of hooks, so that the ultrasonic welding cannot be performed on the entire circumference of the housing, and that leads to the structural strength of the housing at the position of hooks is weak and easily damaged.

In view of the above drawbacks, the Inventor proposes the present invention based on his expert knowledge and elaborate researches in order to solve the problems of prior art.

SUMMARY OF THE INVENTION

Accordingly, an object of the present invention is to provide a housing device with combination structures, wherein the ultrasonic welding can be performed at the entire circumference of the housing device, and the structural strength of the hooks can be enhanced; therefore, the reliability of the housing device will be improved.

In order to achieve the object mentioned above, the present invention provides a housing device with combination structures including a first housing body. The first housing body includes a first housing seat and a first combination structure. The first housing seat has a first bottom surface, a first wall and an extension wall. The first wall and the extension wall are respectively extended from the first bottom surface in a direction away from the first bottom surface, and the extension wall is located at an inner side of the first wall and higher than the first wall. The first combination structure includes a hook, a base and a first bump provided as an energy director. The hook is disposed at a side of the extension wall facing the first wall. The base is protruded from the first wall and located below the hook correspondingly, and the first bump is disposed on the base.

In order to achieve the object mentioned above, the present invention provides a housing device with combination structures including a first housing body. The first housing comprises a first housing seat a first housing seat and a first combination structure. The first housing seat has a first bottom surface and a first wall, the first wall extended from the first bottom surface in a direction away from the first bottom surface. The first combination structure includes a hook, a base and a first bump provided as an energy director. The hook is protruded from the first wall; the base is protruded from the first wall and located below the hook correspondingly, and the first bump is disposed on the base.

Comparing to the prior art, the first housing seat of the housing device of the present invention has formed a first wall and an extension wall, and the extension wall is located at an inner side of the first wall and higher than the first wall; in addition, the first housing seat has further comprises a first combination structure including a hook, a base and a first bump provided as an energy director. Moreover, the hook is disposed at the extension wall. The base is protruded from the first wall and located below the hook correspondingly, and the first bump is disposed on the base. Furthermore, the housing device further includes a second housing body combined with the first housing body. Besides, the second housing seat further comprises a second combination structure including a slot and an abutting block. Thereby, the second bump of the second housing body is inserted in the groove of the first housing body for ultrasonic welding and bonded through melting the second bump where the first wall and the second wall are not provided with hooks. On the other hand, the ultrasonic welding can also be performed on the first housing body and the second housing body at the place where the hooks are provided, wherein the second housing body engages the hook of the first housing body through the slot and abuts the base of the first housing body through the abutting block for positioning. When the first housing body is combined with the second housing body by the ultrasonic welding, the base and the abutting block are bonded through melting the first bump. Thereby, the ultrasonic welding can be performed on the entire circumference between the first housing body and the second housing body for enhancing the structural strength of combination therebetween to improve the reliability of the housing device.

