TWM488763U - Housing structure of power plug - Google Patents

Description

Housing structure of the power plug

The present invention relates to a housing structure for a power plug, and more particularly to a housing structure having a drain to avoid leakage.

Generally, the power supply produced is a safety standard for insulation resistance, and all of them need to pass the tracking test. The test conditions for the tracking test are specified in the safety test standards set by the countries such as IEC6012, UL 746A, GB/T4207, GB4706.1, and ASTM D 3638-92. The leakage tracking test is to apply a certain voltage between the platinum electrodes of the specified size (2mm × 5mm) on the surface of the solid insulating material and to drop the specified droplet volume of the conductive liquid at a predetermined (30s) height (35mm). %NH4CL) is used to evaluate the leakage resistance of solid insulating materials under the combined action of electric field and wet or contaminated medium. The electrical tracking index (CT1) and electrical tracking index (PT1) are determined.

Referring to FIG. 1 to FIG. 2, the prior art housing structure (4) includes a top surface (40), a first side surface (400), a second side surface (402), and at least one groove (42). ). The length of the groove (42) is approximately equal to the distance between the first side (400) and the second side (402), and the bottom of the groove (42) presents a slope (420). The groove (42) can utilize the slope (420) And strengthen the function of drainage.

However, although the function of drainage can be enhanced in the prior art, because of the design problem of the slope (420), a conductive leg group (5) on the casing structure (4) needs to be set off-center, mainly because The presence of the ramp (420) provides a raised area with a slope relative to the inside surface of the housing structure (4). Therefore, if the conductive leg group (5) is disposed at the center, the fixing member (6) for fixing the conductive leg group (5) will have a problem of interference with the protruding region. In order to solve this problem, it is conventional to set the conductive leg group (5) and the fixing member (6) away from the center to avoid interference with the protruding region.

In view of this, the purpose of the present invention is to provide a housing structure of a power plug, which utilizes an increase in the slope of the slope to achieve a faster drainage effect.

Another object of the present invention is that the arrangement of the conductive leg sets of the housing structure does not deviate from the original central area.

To achieve the above or other objects, the present invention provides a housing structure for a power plug, wherein the housing structure includes a top surface, a first side surface, a second side surface, and at least a first groove. An opposite side of the top surface is respectively connected to each of the first side and the second side, and the first groove is disposed on the top surface, and the bottom of the first groove is presented There is a first inclined surface, and the first inclined surface and the top surface are in a non-parallel state. The first forming groove has a length smaller than a distance between the first side surface and the second side surface, and the first side surface has a first opening area. The first open area is connected to one end of the first trench, and the first oblique The surface gradually deepens the depth of the first trench and the top surface from the other end of the first trench toward the first side surface.

In summary, when the housing structure of the power plug is used for experimental testing or by the consumer, if the product related to the creation is accidentally splashed onto the body by the liquid, because of the groove design of the drainage beside the conductive leg group, This avoids leakage.

1‧‧‧Shell structure

10‧‧‧ top surface

100‧‧‧ first side

102‧‧‧ second side

104‧‧‧ third side

106‧‧‧ fourth side

12‧‧‧First trench

120‧‧‧First slope

122‧‧‧First opening area

14‧‧‧Second trench

140‧‧‧second bevel

142‧‧‧Second opening area

2‧‧‧Electrical foot set

3‧‧‧Fixed parts

4‧‧‧Shell structure

40‧‧‧ top surface

400‧‧‧ first side

402‧‧‧ second side

42‧‧‧ trench

420‧‧‧Bevel

5‧‧‧Electrical foot set

6‧‧‧Fixed parts

1 is a partial perspective view of a prior art; FIG. 2 is a schematic cross-sectional view of a prior art; FIG. 3 is a partial perspective view of the first preferred embodiment of the present invention; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 5 is a partial perspective view of a second preferred embodiment of the present invention.

The above and other objects, features and advantages of the present invention will become more apparent and understood.

Please refer to FIG. 3 to FIG. 4 , which are respectively a partial perspective view of the first preferred embodiment and an internal cross-sectional view. The housing structure (1) of the present invention is exemplified by a rectangular body, but is not limited thereto, and since the main technical feature is the upper casing, only the upper casing is shown in the drawing. The housing structure (1) includes a top surface (10), a first side surface (100), a second side surface (102), and at least one first trench (12) (in this embodiment, three trenches are used For example, but not for this limitation). An opposite side of the top surface (10) is respectively engaged with each side of the first side (100) and the second side (102), and the other opposite sides of the top surface (10) The sides are respectively connected to the respective sides of a third side (104) and a fourth side (106). The first groove (12) is disposed on the top surface (10), and the bottom of the first groove (12) is provided with a first slope (120), the first slope (120) and the top surface ( 10) Present a non-parallel state.

Furthermore, the length of the first grooving groove (12) is smaller than the distance between the first side surface (100) and the second side surface (102), and the first side surface (100) has a first opening area (122). The first open area (122) is connected to one end of the first trench (12), and the first inclined surface (120) can make the depth of the first trench (12) and the top surface (10) The other end of the first groove is gradually deepened toward the first side. Wherein, the length of the first groove (12) is relatively shortened compared with the prior art, so that the slope of the first slope (120) is relatively increased under the condition of constant depth, which is advantageous for the function of drainage.

The housing structure (1) can be combined with a conductive leg set (2), which can be a conductive pin of a general plug. One end of the conductive leg group (2) may protrude from the top surface (10) of the housing structure (1), and the other end of the conductive leg group (2) protrudes from the housing structure (1) The inner side surface is fixed by a fixing member (3) to the conductive leg group (1).

Please refer to FIG. 5, which is a partial perspective view of a second preferred embodiment of the present invention. This embodiment only describes differences from the previous embodiment, and the rest of the same points will not be described again. The housing structure (1) further has a second trench (14) The second groove (14) is disposed on the top surface (10), and the bottom of the second groove (14) presents a second slope (140), the second slope (140) and The top surface (10) assumes a non-parallel state. The length of the second grooving groove (140) is smaller than the distance between the first side surface (100) and the second side surface (102), and the second side surface (102) has a second opening area (142). The second open area (142) is connected to one end of the second groove (14), and the second inclined surface (140) is such that the second groove (14) and the top surface (100) have a depth from the second The other end of the groove (14) is gradually deepened toward the second side (104). The other end of the first trench (12) and the other end of the second trench (14) may be the same, and may form a watershed state.

Furthermore, the first inclined surface (120) and the second inclined surface (140) may be in a general planar shape, and may be a convex curved surface type or a concave curved surface type (not shown), and the above various types. The effect of rapid drainage can be achieved to avoid the occurrence of leakage.

Because the use of electronic products requires the use of electricity, it is prone to accidents. Therefore, there are safety regulations on electronic products to limit them in order to meet the safety of use. Among the products of this creation, the depth of the groove is limited to a range in the requirements of safety regulations, and the creation uses the design change to increase the slope of the slope at a limited groove depth to better facilitate the drainage effect. And it can further prevent leakage.

Secondly, the conductive leg set (2) of the present creation does not need to be placed away from the center as is conventional. According to the embodiment of the present creation, if the same casing is used again The length of the first slope (120) is shorter than the length of the conventional slope. In contrast, the inner surface of the casing structure (1) has a slope with the first groove (12). The raised area, the lowest point of the raised area is at a distance from the second side, and is conventionally coupled to the second side. Therefore, the conductive leg group (2) and the fixing member (3) can be brought closer to the center.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application.

1‧‧‧Shell structure

10‧‧‧ top surface

100‧‧‧ first side

102‧‧‧ second side

104‧‧‧ third side

106‧‧‧ fourth side

12‧‧‧First trench

120‧‧‧First slope

122‧‧‧First opening area

2‧‧‧Electrical foot set

Claims (5)

A housing structure of a power plug, wherein the housing structure includes a top surface, a first side surface, a second side surface, and at least one first trench, and an opposite side edge of the top surface respectively corresponds to the first The first side of the first groove is disposed on the top surface, and the first groove has a first slope. The first slope and the top surface are non- The parallel state is characterized in that the length of the first groove is smaller than the distance between the first side and the second side, and the first side has a first opening area, and the first opening area is connected to the first An end of a trench, the first beveling surface gradually deepening the depth of the first trench and the top surface from the other end of the first trench toward the first side. The housing structure of the power plug of claim 1, wherein the housing structure further has a second groove, the second groove is disposed on the top surface, and the bottom of the second groove Presenting a second inclined surface, the second inclined surface exhibiting a non-parallel state with the top surface, the length of the second forming groove is smaller than the distance between the first side surface and the second side surface, and the second side surface has a second side An opening area, the second opening area is connected to one end of the second groove, and the second inclined surface has a depth of the second groove and the top surface from the other end of the second groove toward the second side Gradually deepen. The housing structure of the power plug of claim 2, wherein the other end of the first groove is the same as the other end of the second groove. The housing structure of the power plug of claim 3, wherein the housing structure is coupled with a conductive leg set, the conductive leg set protruding from the top surface. The housing structure of the power plug of claim 4, wherein the first inclined surface and the second inclined surface are in any of the following options: a flat type, a convex shape Face type and a concave surface type.