Patent Application
20110242768
1. Field of the Invention
The present invention generally relates to a power supply, and more particularly, to a power supply and the handle structure thereof.
2. Description of Related Art
Usually, an electrical device such as a industrial computer host or a server mostly adopts a power supply conformable to the system operation demand so as to convert an AC power into a DC power with capability of meeting the power requirement for the system operation. In the prior art, a common power supply has different output power specifications for user selection, and in addition, has a body compatible with the general electrical device. The body of the power supply should includes disposing thread holes to conform the requirement of the electrical device for assembling and disassembling. The body even employs an electrical connection terminal so that a drawer power supply can link the electrical device directly by plugging in.
In terms of application practices however, when the user holds the handle of the power supply's body and applies a side force thereon, due to the small outer diameter of the handle, the handle easily gets fracture by the side bending. Moreover, due to the smaller faceplate of the body so as to hardly accommodate a larger handle and the safety standard limitation so as to hardly employ a metal handle with larger strength, the conventional insulation handle is allowed to use general small screws to be fixed on the faceplate and the conventional handle is obviously strength-insufficient. Under the situation, the handle easily gets fracture by a moment of a side force at the joint place with weaker structure strength. Therefore, it is very important to solve the insufficient strength problem with a conventional handle.
Accordingly, the present invention is directed to a power supply and the handle structure thereof to increase the structure strength of the handle.
The present invention provides a handle structure assembled on a faceplate, and the handle structure includes a holding portion, a first inner-thread structure and a second inner-thread structure. The holding portion has a first fixing pillar, a second fixing pillar and a force-applying rod connected between the first fixing pillar and the second fixing pillar parallel to the first fixing pillar. The first inner-thread structure is inlaid in the first end of the first fixing pillar. The first fixing pillar has a first height perpendicular to the faceplate, and the height of the first inner-thread structure perpendicular to the faceplate is greater than the half of the first height. The second inner-thread structure is inlaid in the second end of the second fixing pillar. The second fixing pillar has a second height perpendicular to the faceplate, and the height of the second inner-thread structure perpendicular to the faceplate is greater than the half of the second height.
The present invention provides a power supply assembled in an electrical device and includes a casing, an elastic fastening strip and a handle structure. The elastic fastening strip is disposed at the side of the casing and protruded out of the faceplate. The handle structure is assembled on the faceplate and includes a holding portion, a first inner-thread structure and a second inner-thread structure. The holding portion has a first fixing pillar, a second fixing pillar and a force-applying rod connected between the first fixing pillar and the second fixing pillar parallel to the first fixing pillar. The first inner-thread structure is inlaid in the first end of the first fixing pillar. The first fixing pillar has a first height perpendicular to the faceplate, and the height of the first inner-thread structure perpendicular to the faceplate is greater than the half of the first height. The second inner-thread structure is inlaid in the second end of the second fixing pillar. The second fixing pillar has a second height perpendicular to the faceplate, and the height of the second inner-thread structure perpendicular to the faceplate is greater than the half of the second height.
In an embodiment of the present invention, the above-mentioned first inner-thread structure has a first thread hole for accommodating a first bolt, and the first bolt goes through the faceplate to be fastened in the first thread hole.
In an embodiment of the present invention, the above-mentioned first bolt has a first length, which is substantially equal to the height of the first inner-thread structure perpendicular to the faceplate.
In an embodiment of the present invention, an end of the above-mentioned first inner-thread structure far away from the faceplate is a conic body structure having a first outer diameter and a slanted surface and the slanted surface is tilted towards the first thread hole so as to form a second outer diameter smaller than the first outer diameter.
In an embodiment of the present invention, the above-mentioned first fixing pillar has an enhancing structure formed in the conic body structure.
In an embodiment of the present invention, the above-mentioned second inner-thread structure has a second thread hole for accommodating a second bolt, and the second bolt goes through the faceplate to be fastened in the second thread hole.
In an embodiment of the present invention, the above-mentioned second bolt has a second length, which is substantially equal to the height of the second inner-thread structure perpendicular to the faceplate.
In an embodiment of the present invention, an end of the above-mentioned second inner-thread structure far away from the faceplate is a conic body structure having a first outer diameter and a slanted surface and the slanted surface is tilted towards the second thread hole so as to form a second outer diameter smaller than the first outer diameter.
In an embodiment of the present invention, the above-mentioned second fixing pillar has an enhancing structure formed in the conic body structure.
In an embodiment of the present invention, the above-mentioned first fixing pillar is formed by injecting plastic and encloses the first inner-thread structure.
In an embodiment of the present invention, the above-mentioned second fixing pillar is formed by injecting plastic and encloses the second inner-thread structure.
In an embodiment of the present invention, the above-mentioned first fixing pillar, second fixing pillar and force-applying rod together form a -shape structure.
Based on the depiction above, the present invention provides a handle structure with higher strength so that the handle is not easily to get fracture by the moment of a side force at the joint place with weaker structure strength. In this way, the insufficient strength problem of the conventional handle structure is solved.
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.
Reference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
Assuming the first fixing pillar 102 and the second fixing pillar 104 have the same height, and the heights of the first inner-thread structure 110 and the second inner-thread structure 120 perpendicular to the faceplate 20 are the same as well, then, the ends of the first inner-thread structure 110 and the second inner-thread structure 120 would be beyond the middle lines of the first fixing pillar 102 and the second fixing pillar 104, i.e., beyond the halves of the first height and the second height. As a result, the strength of the handle structure 10 withstanding deformation is relatively enhanced. Meanwhile, the force-arm length r between the force-applying point A on the force-applying rod 106 and the force-accepting point B at a joint place with a weaker strength is relatively shortened so as to make r at least less than a half of any of the two fixing pillars, and thereby, the moment amount (product of the force by the force-arm length) is reduced.
Referring to
In the embodiment, the first fixing pillar 102 is formed, for example, by injecting plastic and encloses the first inner-thread structure 110. At the outside of the first inner-thread structure 110, a groove 114 is disposed and the first fixing pillar 102 has an inlay portion 102b protruded from the first fixing pillar 102 and located corresponding to the groove 114, so that the first inner-thread structure 110 and the first fixing pillar 102 are fastened by each other. The first inner-thread structure 110 can have a dumbbell-shape, i.e. a cylinder shape having two ends respectively with a dimension greater than the dimension of the middle portion of the cylinder. The first fixing pillar 102 has thermal isolation effect so as to conform the safety standard.
Similarly, the second fixing pillar 104 is formed, for example, by injecting plastic and encloses the second inner-thread structure 120. At the outside of the second inner-thread structure 120, a groove 124 is disposed and the second fixing pillar 104 has an inlay portion 104b protruded from the second fixing pillar 104 and located corresponding to the groove 124, so that the second inner-thread structure 120 and the second fixing pillar 104 are knocked by each other. The second inner-thread structure 120 can have a dumbbell-shape, i.e. a cylinder shape having two ends respectively with a dimension greater than the dimension of the middle portion of the cylinder. The second fixing pillar 104 has thermal isolation effect so as to conform the safety standard.
Continuing to -shape structure. In this way, the user can easily apply a side force to release the fastening action of the elastic fastening strip 160, followed by applying a forwarding force to pull out the casing 150. It should be noted that the first inner-thread structure 110 and the second inner-thread structure 120 are respectively located at both sides of the
-shape structure and are respectively inlaid in the first fixing pillar 102 and the second fixing pillar 104. The above-mentioned design is like that there are two metal bushes with larger strength added in the handle, which can withstand the moment produced by the side force. In other words, when the first inner-thread structure 110 or the second inner-thread structure 120 has a longer length, the force-arm length r between the force-applying point A on the force-applying rod 106 and the force-accepting point B at the joint place with a weaker structure strength is relatively shortened. In comparison with the conventional design where the force-arm length between the force-applying point and the force-accepting point on a conventional handle structure is roughly equal to the length of the fixing pillar, the present invention can largely reduce the moment produced by a side force.
In summary, the present invention features to increase the strength of the handle structure, so that the handle structure is unlikely fractured by a moment produced by a side force at the joint place with a weaker structure strength thereof. Therefore, the present invention can solve the conventional problem of the insufficient strength of the handle structure.
It will be apparent to those skilled in the art that the descriptions above are several preferred embodiments of the present invention only, which does not limit the implementing range of the present invention. Various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention.
