CN212367113U

CN212367113U - Waterproof assembly structure of power adapter

Info

Publication number: CN212367113U
Application number: CN202021939360.5U
Authority: CN
Inventors: 李星光
Original assignee: Foshan Shunde Guangyuda Power Supply Co
Current assignee: Foshan Shunde Guangyuda Power Supply Co
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-01-15
Anticipated expiration: 2030-09-07

Abstract

A waterproof assembly structure of a power adapter comprises an upper shell and a lower shell, wherein a U-shaped ring groove is formed in the upper shell, an annular inclined pin is arranged on the lower shell, and a sealing element is arranged between the U-shaped ring groove and the annular inclined pin; go up the casing and go up mutual fixed connection between the casing and the lower casing, go up the casing and insert the extrusion sealing member through annular slope when fixed, the sealing member inserts through the extrusion of annular slope and seals the laminating on the clearance that forms between last casing, lower casing. Through the improvement of the structure, the annular inclined pin is used for extruding the sealing element in the U-shaped ring groove, all gaps formed between the upper shell and the lower shell during assembly can be effectively filled, so that water vapor or moisture can be completely prevented from entering the upper shell and the lower shell, meanwhile, due to the inclined insertion effect of the annular inclined pin, the rebound stress generated during the extrusion deformation of the sealing element can be dispersed, the assembly stability between the upper shell and the lower shell is improved, and the service life of the power adapter is prolonged.

Description

Waterproof assembly structure of power adapter

Technical Field

The utility model relates to a waterproof assembly structure of power adapter.

Background

Chinese patent document No. CN109890163A discloses a male-female kiss waterproof device in 2019, 6.14.a, which includes a power supply housing having an inner cavity and leads disposed at both ends of the power supply housing, wherein the leads are provided with connectors, both ends of the power supply housing are provided with wiring interfaces for accommodating the connectors, the inner wall surface of the wiring interface is provided with a first groove, the connector is convexly provided with a first protrusion matched with the first groove, the first protrusion abuts against the end surface of the first groove to fix the connector on the wiring interface, and waterproof glue is further applied and filled between the connector and the wiring interface. The concave-convex mutual-inosculating waterproof device is characterized in that the concave-convex mutual-inosculating structures are arranged through the wiring interfaces of the power supply shell and the joints of the leads, and waterproof glue filled in gaps between the concave-convex structures, water vapor or moisture blocked by the grooves and the bumps can not directly enter the interior of the power supply shell through the wiring interfaces, so that the waterproof performance of the power supply is greatly improved, and the safety of the power supply is correspondingly improved; however, the lower shell and the upper shell are only connected in a glue applying mode, the problem of loosening is easily caused in the using process, the service life of a product is influenced, the lower shell and the upper shell can move after the glue is condensed when being assembled, otherwise, the assembly goodness of fit of the lower shell and the upper shell is influenced, and the production efficiency is low. Therefore, further improvements are necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waterproof assembly structure of power adapter to overcome the weak point among the prior art.

According to the waterproof assembly structure of this purpose design's a power adapter, including last casing and lower casing, its characterized in that: the upper shell is provided with a U-shaped ring groove, the lower shell is provided with an annular inclined pin, and a sealing element is arranged between the U-shaped ring groove and the annular inclined pin.

The upper shell and the lower shell are fixedly connected with each other, the upper shell extrudes the sealing element through the annular inclined pin when being fixed, and the sealing element is attached to a gap formed between the upper shell and the lower shell through the extrusion sealing of the annular inclined pin.

The sealing element is circular and has the size equivalent to the size of the inside of the U-shaped annular groove; the annular inclined plug pins are inserted into the U-shaped annular grooves and extrude the sealing elements when the annular inclined plug pins are inserted, and the sealing elements deform and seal gaps formed between the upper shell and the lower shell when the sealing elements are extruded.

One side of the annular inclined pin is vertically arranged and depends on one side of the U-shaped annular groove, and the other side of the annular inclined pin is obliquely arranged and is in clearance fit with the other side of the U-shaped annular groove.

The bottom of the annular inclined pin and the bottom of the U-shaped annular groove are mutually depended or in clearance fit; the annular inclined pin is inserted into the U-shaped ring groove, the sealing element is extruded to move towards the gap between the annular inclined pin and the U-shaped ring groove and deform, and the sealing element is sealed on a gap formed between the upper shell and the lower shell and a gap formed between the U-shaped ring groove and the annular inclined pin when deforming.

The upper shell and the lower shell are fixedly connected with each other through clamping, and/or welding, and/or pasting, and/or fasteners.

The upper shell is provided with a buckling part, and the lower shell is provided with a buckling matching part; the upper shell is fixedly clamped with the buckle matching part of the lower shell through the buckle part.

The buckling part is a buckling hole and is positioned on the inner side of the U-shaped ring groove; the buckle matching part is formed by a buckle positioned at the inner side of the annular inclined pin; the lower shell is clamped on the clamping hole of the upper shell through the clamping positioning.

The upper shell is provided with an upper relying part, the lower shell is provided with a lower relying part, and the upper shell and the lower shell are embedded and connected with each other in an interference manner through the upper relying part and the lower relying part; the upper depending part and the lower depending part are mutually welded through ultrasonic after the upper and lower shells are embedded and connected.

The upper shell is provided with an upper opening, and the upper depending part inclines towards the inner side or the outer side of the upper opening of the upper shell and forms an inclination angle b; the lower shell is provided with a lower opening, and the lower depending part inclines towards the inner side or the outer side of the lower opening of the lower shell and forms an inclination angle a; the inclination angle a is the same as the inclination angle b.

The outer side of the upper shell is also provided with an upper positioning step, and the outer side of the lower shell is also provided with a lower positioning step; the upper shell is positioned on the lower positioning step of the lower shell through the upper positioning step when being fixed.

The utility model discloses an above-mentioned structure's improvement goes up the casing and passes through joint, and/or butt fusion, and/or paste, and/or the arbitrary one kind mode of fastener and lower casing mutual fixed connection to realize last casing and the stable assembly down between the casing, thereby simplify the assembly process between last casing and the lower casing, reduction in production cost improves production efficiency.

Utilize the annular to incline to participate in the sealing member of carrying out the extrusion effect in the U-shaped annular groove, the sealing member produces deformation after the extrusion, can seal the gap that forms between laminating upper casing, the lower casing, and the gap that forms between U-shaped annular groove and the annular is inclined to participate in, thereby all gaps that form when the assembly between upper casing and the lower casing have been filled up effectively, with prevent steam or moisture entering upper casing, the inside of lower casing completely, the waterproof performance of product has been improved widely, also corresponding improvement the safety in utilization and the life of product, thereby the difficult technical problem of power adapter waterproofing among the prior art has been solved effectively.

Due to the inclined insertion effect of the annular inclined insertion pin, the sealing element can be driven to move in the U-shaped annular groove to generate rebound sealing force towards one side, so that the rebound stress generated when the sealing element is extruded and deformed is partially dispersed, the technical problems that the sealing element cannot move and generates larger rebound stress due to the fact that the sealing element is only acted by a plane in the prior art, the upper shell and the lower shell are easy to unfold or crack during assembly, the assembly is not firm, the production efficiency is low and the like are effectively solved, the stable and firm assembly between the upper shell and the lower shell is improved, and the service life of the power adapter is prolonged.

In summary, the waterproof structure has the characteristics of simple and reasonable structure, firm assembly, high production efficiency, long service life, good waterproof effect, low manufacturing cost, easy production, easy realization and the like, and is strong in practicability.

Drawings

Fig. 1-3 are schematic exploded structural views of an embodiment of the present invention.

Fig. 4 and 5 are schematic views of an assembly structure according to an embodiment of the present invention.

Fig. 6 is an enlarged schematic view of a portion a in fig. 3.

Fig. 7 is an enlarged schematic view of a portion B in fig. 3.

Fig. 8 is an enlarged schematic view of the structure at C in fig. 5.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-8, the waterproof assembly structure of the power adapter includes an upper housing 1 and a lower housing 2, and is characterized in that: the upper shell 1 is provided with a U-shaped ring groove 3, the lower shell 2 is provided with an annular inclined pin 4, and a sealing element 5 is arranged between the U-shaped ring groove 3 and the annular inclined pin 4.

The upper shell 1 and the lower shell 2 are fixedly connected with each other, the upper shell 1 presses the sealing piece 5 through the annular inclined pin 4 when being fixed, and the sealing piece 5 is tightly attached to a gap formed between the upper shell 1 and the lower shell 2 through the pressing of the annular inclined pin 4.

Utilize annular to incline to participate in 4 and carry out the extrusion to sealing member 5 in the U-shaped ring groove 3, deformation takes place after sealing member 5 extrudees, can seal laminating upper housing 1, the gap that forms between the lower housing 2, and the gap that forms between U-shaped ring groove 3 and the annular is inclined to participate in 4, thereby all gaps that form when the assembly between upper housing 1 and the lower housing 2 have been filled up effectively, with prevent steam or moisture entering upper housing 1 completely, the inside of lower housing 2, the waterproof performance of product has been improved widely, also corresponding improvement the safety in utilization and the life of product, thereby the difficult technical problem of power adapter waterproof among the prior art has been solved effectively.

Meanwhile, due to the inclined arrangement of the annular inclined pin 4, when the sealing element 5 is acted, the sealing element 5 can be driven to deform and move towards one direction and act on one side of the U-shaped annular groove 3 in a sealing manner, so that the sealing element 5 is ensured not to have any displacement problem after being assembled, and the sealing effect of the sealing element 5 is improved.

The sealing element 5 is circular and made of a resilient or plastic material, and has a size corresponding to the inner size of the U-shaped ring groove 3. This sealing member 5 can use simple, the low cost's of preparation simple process waterproof sealing washer to use, and its size is equivalent with the inslot size of U-shaped ring groove 3 simultaneously, and when the assembly, sealing member 5 can directly be placed in U-shaped ring groove 3, inserts the extrusion of 4 through the annular slope afterwards and can accomplish the assembly of sealing member 5, therefore sealing member 5 can reach simple, swift, convenient, high-efficient, reliable assembly effect.

The annular inclined pin 4 is inserted into the U-shaped annular groove 3 and presses the sealing member 5 when inserted, and the sealing member 5 deforms when pressed and acts to seal a gap formed between the upper casing 1 and the lower casing 2.

When adopting sealing member 5 to carry out gap seal between last casing 1 and the casing 2 down, because sealing member 5 can produce certain rebound stress when the compression, go up casing 1 and casing 2 down and can strut or the fracture problem because the bounce-back force of sealing member 5 can appear, cause and go up casing 1 and casing 2 assembly difficulty down or the assembly back easily pine take off.

This embodiment has adopted the annular to incline to participate in 4 pressure to establish and act on the mode of sealing member 5, because the effect of inserting of inclining of annular to incline to participate in 4, can drive sealing member 5 and do certain activity in U-shaped ring groove 3, make sealing member 5 produce the sealing force of bounce-back to one side, thereby the part has disperseed sealing member 5 and has made the rebound stress when extrusion deformation, in order to solved prior art effectively and only utilized plane effect sealing member 5, cause the unable activity of sealing member 5, and produce great rebound stress, prop open or the fracture appears when leading to going up casing 1 and casing 2 assembly easily, the assembly is insecure, technical problem such as production efficiency hangs down, in order to improve the assembly fastness between casing and the lower casing, the life of extension power adapter.

Furthermore, one side of the annular inclined pin 4 is vertically arranged and is mutually depended on one side of the U-shaped annular groove 3, the other side of the annular inclined pin 4 is obliquely arranged and is in clearance fit with the other side of the U-shaped annular groove 3, and the bottom of the annular inclined pin 4 is mutually depended on or in clearance fit with the bottom of the U-shaped annular groove 3.

The annular inclined pin 4 is inserted into the U-shaped annular groove 3, the pressing sealing piece 5 moves towards the gap between the annular inclined pin 4 and the U-shaped annular groove 3 and generates deformation, and the sealing piece 5 acts on the gap formed between the upper shell 1 and the lower shell 2 and the gap formed between the U-shaped annular groove 3 and the annular inclined pin 4 in a sealing mode when deformed.

The upper casing 1 and the lower casing 2 can be fixedly connected with each other by any means such as clamping, and/or welding, and/or pasting, and/or fastening.

Specifically, the upper shell 1 is provided with a buckling part 6, and the lower shell 2 is provided with a buckling matching part 7; the upper shell 1 is fixedly clamped with the snap-fit part 7 of the lower shell 2 through the snap-fit part 6.

Meanwhile, an upper depending part 10 is arranged on the upper shell 1, a lower depending part 11 is arranged on the lower shell 2, and the upper shell 1 and the lower shell 2 are embedded and connected with each other in an interference manner through the upper depending part 10 and the lower depending part 11; the upper depending part 10 and the lower depending part 11 are welded together by ultrasonic after the upper and lower shells are embedded.

The upper casing 1 of the embodiment is mutually clamped with the buckling matching part 7 of the lower casing 2 through the buckling part 6 to realize stable assembly between the upper casing 1 and the lower casing 2, then the cooperation of the U-shaped ring groove 3 and the annular inclined pin 4 is recycled to realize the mutual connection between the upper casing 1 and the lower casing 2, and finally the interference fit between the upper relying part 10 and the lower relying part 11 is recycled to realize the mutual embedding between the upper casing 1 and the lower casing 2, so as to ensure the firm assembly between the upper casing 1 and the lower casing 2, effectively solve the problem that the upper casing 1 and the lower casing 2 are easy to loosen after assembly in the prior art, further improve the stability after the assembly of the upper casing 1 and the lower casing 2, so as to improve the use safety and the service life of a product, and the clamping between the buckling part 6 and the buckling matching part 7 can also ensure that the upper casing and the lower casing can be easily loosened after the assembly of the upper relying part 10 and the, The lower depending part 11 can be stably assembled after welding failure, and the use stability of the power adapter is guaranteed.

In order to make the assembly between the upper shell 1 and the lower shell 2 more stable, the buckling part 6 is a buckling hole and is positioned at the inner side of the U-shaped ring groove 3; the buckle matching part 7 is a buckle which is positioned at the inner side of the annular inclined pin 4; the lower shell 2 is clamped on the clamping hole of the upper shell 1 through the clamping positioning. The cooperation between buckle and the buckle hole is simple reasonable, makes and goes up casing 1 and casing 2 can be fairly stable, firm after the joint down.

Specifically, the upper depending portion 10 is provided obliquely on the upper case 1; the lower depending part 11 is arranged on the lower shell 2; the inclined direction of the upper depending part 10 and the inclined direction of the lower depending part 11 are parallel to each other.

The upper shell 1 is provided with an upper opening, and the upper relying part 10 inclines towards the inner side or the outer side of the upper opening of the upper shell 1 and forms an inclination angle b; the lower shell 2 is provided with a lower opening, and the lower depending part 11 inclines towards the inner side or the outer side of the lower opening of the lower shell 2 and forms an inclination angle a; the inclination angle a is the same as the inclination angle b.

Because the incline direction of last dependence portion 10 is parallel to each other with the incline direction of lower dependence portion 11, and the inclination of the two is unanimous simultaneously, consequently, go up casing 1 and lower casing 2 and close the back in-process at the ultrasonic wave, thereby the contact between last dependence portion 10 and the lower dependence portion 11 will produce the frictional heat and melt each other, after the ultrasonic wave retreats, go up dependence portion 10 and will weld and fix together with relying on between the portion 11 down to ensure the firm assembly between last casing 1 and the lower casing 2. And go up dependence portion 10 and rely on portion 11 to form certain phenomenon of moving back when inlaying and establish, consequently can improve the contact surface when the two are inlayed each other and establish, and then improve the butt fusion position of the two to further improve assembly fastness and waterproof nature between last casing 1 and the lower casing 2.

Go up the slope between dependence portion 10 and the lower dependence portion 11 and inlay and establish the effect and can change casing 1, casing 2's atress direction down, it mainly shows that friction about can forming between casing 1 and the casing 2 down, the bounce-back of sealing member 5 can be offset to friction about this, can further guarantee casing 1 and casing 2 can not appear strutting or the fracture problem when the assembly down, casing 1 and casing 2 assembly degree of difficulty down on the reduction, improve assembly stability.

In order to make the assembly between the upper shell 1 and the lower shell 2 more reasonable, the upper shell 1 is provided with an upper positioning step 8, and the upper positioning step 8 is positioned outside the upper depending part 10; the lower shell 2 is provided with a lower positioning step 9, and the lower positioning step 9 is positioned outside the lower depending part 11; the upper housing 1 is positioned on a lower positioning step 9 of the lower housing 2 by an upper positioning step 8 when being fixed.

The structure adopts the mode that the annular inclined pin 4 is pressed and acts on the sealing element 5, so that the larger rebound stress of the sealing element 5 is decomposed, the decomposition direction is shown by arrow X in fig. 8, which is directed to decomposition, not only reducing the elastic stress generated by the sealing member 5 during deformation, thereby greatly reducing the reverse acting force between the upper shell 1 and the lower shell 2 when the upper shell 1 and the lower shell 2 are fixed by clamping, and/or welding, and/or pasting, and/or fasteners and the like, facilitating the assembly of the upper shell 1 and the lower shell 2, improving the production efficiency, meanwhile, the problem that the upper shell 1 and the lower shell 2 are loosened after assembly can be effectively solved, the assembly stability and fastness of the power adapter are guaranteed, the problem of opening or cracking after the upper shell 1 and the lower shell 2 are assembled is avoided, the effective waterproof effect is achieved, and the service life of the power adapter is prolonged.

Known through the experiment, this structure can reach IP 67's waterproof test, and waterproof performance is very strong, can satisfy different users and use under different environment.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, but rather that various changes and modifications may be made without departing from the spirit and scope of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a waterproof assembly structure of power adapter, includes casing (1) and casing (2) down, its characterized in that: a U-shaped ring groove (3) is arranged on the upper shell (1), an annular inclined pin (4) is arranged on the lower shell (2), and a sealing element (5) is arranged between the U-shaped ring groove (3) and the annular inclined pin (4);

the upper shell (1) and the lower shell (2) are fixedly connected with each other, the upper shell (1) extrudes the sealing piece (5) through the annular inclined pin (4) when being fixed, and the sealing piece (5) is attached to a gap formed between the upper shell (1) and the lower shell (2) in a sealing mode through the extrusion of the annular inclined pin (4).

2. The waterproof assembling structure of a power adapter according to claim 1, characterized in that: the sealing element (5) is annular and has the size equivalent to the size of the inside of the U-shaped annular groove (3); the annular inclined pin (4) is inserted into the U-shaped annular groove (3) and extrudes the sealing element (5) when the annular inclined pin is inserted, and the sealing element (5) deforms when being extruded and acts on a gap formed between the upper shell (1) and the lower shell (2) in a sealing mode.

3. The waterproof assembling structure of a power adapter according to claim 2, characterized in that: one side of the annular inclined pin (4) is vertically arranged and depends on one side of the U-shaped ring groove (3), and the other side of the annular inclined pin (4) is obliquely arranged and is in clearance fit with the other side of the U-shaped ring groove (3).

4. The waterproof assembling structure of a power adapter according to claim 3, characterized in that: the bottom of the annular inclined pin (4) is mutually depended on or in clearance fit with the bottom of the U-shaped annular groove (3); the ring-shaped inclined pin (4) is inserted into the U-shaped ring groove (3), the sealing element (5) is extruded to move towards the gap between the ring-shaped inclined pin (4) and the U-shaped ring groove (3) and deform, and the sealing element (5) is sealed in the gap formed between the upper shell (1) and the lower shell (2) and the gap formed between the U-shaped ring groove (3) and the ring-shaped inclined pin (4) during deformation.

5. The waterproof assembling structure of a power adapter according to any one of claims 1 to 4, characterized in that: the upper shell (1) and the lower shell (2) are fixedly connected with each other through clamping, and/or welding, and/or pasting, and/or fasteners.

6. The waterproof assembling structure of a power adapter according to claim 5, characterized in that: the upper shell (1) is provided with a buckling part (6), and the lower shell (2) is provided with a buckling matching part (7); the upper shell (1) is fixedly clamped with the clamping matching part (7) of the lower shell (2) through the clamping part (6).

7. The waterproof assembling structure of a power adapter according to claim 6, characterized in that: the buckling part (6) is a buckling hole and is positioned on the inner side of the U-shaped ring groove (3); the buckle matching part (7) is positioned at the inner side of the annular inclined pin (4) in a buckle way; the lower shell (2) is clamped on the clamping hole of the upper shell (1) through the clamping positioning.

8. The waterproof assembling structure of a power adapter according to claim 5, characterized in that: an upper depending part (10) is arranged on the upper shell (1), a lower depending part (11) is arranged on the lower shell (2), and the upper shell (1) and the lower shell (2) are embedded and connected with each other in an interference manner through the upper depending part (10) and the lower depending part (11); the upper depending part (10) and the lower depending part (11) are welded with each other through ultrasonic after the upper and lower shells are embedded and connected.

9. The waterproof assembling structure of a power adapter according to claim 8, characterized in that: the upper shell (1) is provided with an upper opening, and the upper depending part (10) inclines towards the inner side or the outer side of the upper opening of the upper shell (1) and forms an inclination angle b; the lower shell (2) is provided with a lower opening, and the lower depending part (11) inclines towards the inner side or the outer side of the lower opening of the lower shell (2) and forms an inclination angle a; the inclination angle a is the same as the inclination angle b.

10. The waterproof assembling structure of a power adapter according to claim 1, or 2, or 3, or 4, or 6, or 7, or 8, or 9, characterized in that: an upper positioning step (8) is further arranged on the outer side of the upper shell (1), and a lower positioning step (9) is further arranged on the outer side of the lower shell (2); the upper shell (1) is positioned on a lower positioning step (9) of the lower shell (2) through an upper positioning step (8) when being fixed.