A power supply waterproof structure

Abstract

A power supply waterproof structure comprises an upper cover, a lower cover and a power cord, wherein a buckle portion and an upper annular groove are provided on the upper cover, and a buckle fitting portion and a lower annular groove are provided on the lower cover; wherein a fluid paste is pre-placed in the lower annular groove, and the power cord is preset on the lower cover, and the upper cover is mutually buckled with the buckle fitting portion of the lower cover through the buckle portion and pressed on the power cord; the upper cover and the lower cover are buckled and turned over, and the fluid paste flows into the upper annular groove by its own gravity, and solidifies and seals and fits on the gap between the upper cover, the lower cover and the power cord after a certain period of time. The present invention utilizes a buckling method to improve the stability of the upper cover and the lower cover after assembly, so as to improve the assembly firmness of the two, and at the same time, the upper cover and the lower cover are buckled and then turned over 180 degrees, and the fluid paste flows by its own gravity and can fill all gaps formed by the upper cover, the lower cover and the power cord when they are assembled, so as to achieve multiple waterproof effects, so as to maximize the waterproofness of the power supply.

Description

Technical Field

[0001] The invention relates to a power supply waterproof structure. Background Art

[0002] Chinese patent document number CN109890163A disclosed on June 14, 2019 a concave-convex kissing waterproof device, which includes a power supply shell with an inner cavity and wires arranged at both ends of the power supply shell, a connector is arranged on the wire, and wiring interfaces for accommodating the connector are arranged at both ends of the power supply shell, a first groove is opened on the inner wall surface of the wiring interface, a first protrusion matching the first groove is protruded from the joint, the first protrusion and the end face of the first groove abut against each other to fix the joint on the wiring interface, and waterproof glue is also smeared and filled between the joint and the wiring interface. It is said that the concave-convex kissing waterproof device is provided with mutually matching concave-convex structures through the wiring interface of the power supply housing and the joint of the wire, and waterproof glue is filled in the gap between the concave-convex structures. The grooves and convex blocks water vapor or moisture from directly entering the interior of the power supply housing through the wiring interface, which greatly improves the waterproof performance of the power supply and correspondingly improves the safety of the power supply; however, the lower housing and the upper housing are only connected by gluing, which is easy to get loose during use, affecting the service life of the product, and the lower housing and the upper housing must wait for the glue to solidify before moving, otherwise it will affect the assembly fit between the lower housing and the upper housing, resulting in low production efficiency. Therefore, further improvement is necessary. Summary of the invention

[0003] The purpose of the present invention is to provide a power supply waterproof structure with simple and reasonable structure, excellent performance, firm assembly, high production efficiency, long service life, good waterproof effect, low manufacturing cost, easy production and easy implementation, so as to overcome the shortcomings of the prior art.

[0004] A power supply waterproof structure designed for this purpose comprises an upper cover, a lower cover and a power cord, and is characterized in that: a buckle portion and an upper annular groove are provided on the upper cover, and a buckle fitting portion and a lower annular groove are provided on the lower cover; wherein a fluid affixed substance is pre-placed in the lower annular groove, the power cord is preset on the lower cover, the upper cover is buckled with the buckle fitting portion of the lower cover through the buckle portion, and is pressed onto the power cord; the upper cover and the lower cover are flipped after being buckled, and the fluid affixed substance flows into the upper annular groove by its own gravity, and solidifies and seals and fits on the gap between the upper cover, the lower cover and the power cord after a certain period of time.

[0005] The upper cover is provided with an upper inner wall, and the lower cover is provided with a lower inner wall; the buckle portion is provided on the upper inner wall, and the buckle fitting portion is provided on the lower inner wall; the upper inner wall and the lower inner wall are tightly attached to each other, and the two are engaged with each other through the cooperation of the buckle portion and the buckle fitting portion; the fluid-bonded substance is turned over on the upper and lower covers, and solidifies and seals on the gap between the upper inner wall and the lower inner wall and / or seals on the gap between the buckle portion and the buckle fitting portion after a certain period of time.

[0006] The upper cover is also provided with an upper outer wall, and an upper annular groove is formed between the upper outer wall and the upper inner wall; the lower cover is also provided with a lower outer wall, and a lower annular groove is formed between the lower outer wall and the lower inner wall.

[0007] The upper outer wall is provided with an upper positioning step, and the lower outer wall is provided with a lower positioning step, and the upper outer wall is positioned relative to the lower positioning step by the upper positioning step and the lower positioning step of the lower outer wall; the fluid adhesive is turned over by the upper and lower covers, and solidifies and seals on the gap between the upper positioning step and the lower positioning step after a certain period of time.

[0008] The lower inner wall is provided with a wire passing opening; the power cord is tightly attached to the lower inner wall and bent at the wire passing opening, and extends into between the upper and lower covers through a avoiding space formed between the upper inner wall and the lower inner wall; the fluid paste is turned over by the upper and lower covers, and solidifies and seals on the gap between the power cord and the lower inner wall, and / or seals on the gap between the power cord and the wire passing opening, and / or seals on the gap between the power cord and the avoiding space after a certain period of time.

[0009] A cavity is arranged between the upper cover and the lower cover, and a power board is arranged in the cavity; the power line is electrically connected to the power board.

[0010] The upper inner wall is provided with a recessed portion, and a space for the power line to extend into the space between the upper cover and the lower cover is formed between the recessed portion and the lower inner wall.

[0011] The power cord is provided with a connector, an upper snap-in is provided on the upper outer wall, and a lower snap-in is provided on the lower outer wall. The power cord is arranged between the upper snap-in and the lower snap-in through the connector; the fluid paste is turned over on the upper and lower covers, and solidifies and seals on the gap between the connector and the upper and lower snap-ins after a certain period of time.

[0012] The present invention improves the above structure, and the upper cover is snapped to the snap-fitting part of the lower cover by the snap-fitting part, so as to ensure the firm assembly between the upper cover and the lower cover, and effectively solves the problem that the upper cover and the lower cover are easily loosened after long-term use in the prior art where the upper cover and the lower cover are assembled only by gluing, thereby improving the stability of the upper cover and the lower cover after assembly, so as to improve the use safety and service life of the power supply; after the upper cover and the lower cover are snapped, they are turned 180 degrees, so that the fluid paste placed in the lower annular groove in advance flows into the upper annular groove by its own gravity, and the fluid paste solidifies and seals the gap formed between the upper cover, the lower cover and the power cord during assembly after a certain period of time, so as to effectively fill the gap. All gaps formed by the upper cover, the lower cover and the power cord during assembly are blocked to achieve multiple waterproof effects, so as to maximize the waterproof performance of the power supply. At the same time, since the upper cover and the lower cover have been assembled by snap-fitting before, the upper and lower covers can be moved even if the fluid adhesive has not solidified, which effectively solves the problem of the prior art that the upper and lower covers must wait for the glue to solidify before moving, so as to improve the production efficiency of the power supply. Moreover, when the fluid adhesive is solidified, it can completely prevent water vapor or moisture from entering the interior of the upper and lower covers, greatly improving the waterproof performance of the power supply, and correspondingly improving the safety of use and the service life of the power supply, thereby effectively solving the technical problem of the difficulty in waterproofing the power supply.

[0013] In general, it has the characteristics of simple and reasonable structure, excellent performance, firm assembly, high production efficiency, long service life, good waterproof effect, low manufacturing cost, easy production, easy implementation, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 , Figure 2 FIG. 1 is a schematic diagram of the exploded structure of the first embodiment of the present invention.

[0015] Figure 3 , Figure 4 It is a schematic diagram of the assembly structure of the first embodiment of the present invention.

[0016] Figure 5 It is a schematic diagram of the assembly structure of the lower cover, power cord and power board of the first embodiment of the present invention.

[0017] Figure 6 It is a schematic diagram of the cross-sectional assembly structure of the first embodiment of the present invention.

[0018] Figure 7 FIG. 2 is another cross-sectional assembly structure schematic diagram of the first embodiment of the present invention.

[0019] Figure 8 It is another cross-sectional assembly structure schematic diagram of the first embodiment of the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-Figure 8 The power supply waterproof structure is mainly suitable for switching power supplies and power adapters, and includes an upper cover 1, a lower cover 2 and a power cord 3. The upper cover 1 is provided with a buckle portion 4 and an upper annular groove 5, and the lower cover 2 is provided with a buckle fitting portion 6 and a lower annular groove 7; wherein a fluid paste 8 is pre-placed in the lower annular groove 7, and the power cord 3 is preset on the lower cover 2, and the upper cover 1 is mutually engaged with the buckle fitting portion 6 of the lower cover 2 through the buckle portion 4 and is pressed on the power cord 3; after the upper cover 1 and the lower cover 2 are engaged, they are flipped over, and the fluid paste 8 flows into the upper annular groove 5 by its own gravity, and solidifies and seals and fits on the gap between the upper cover 1, the lower cover 2 and the power cord 3 after a certain period of time.

[0022] like Figure 1 , Figure 2 As shown, the upper cover 1 is provided with an upper inner wall 9, and the lower cover 2 is provided with a lower inner wall 10; the buckle portion 4 is a button hole and is provided on the upper inner wall 9, and the buckle fitting portion 6 is a buckle platform and is provided on the lower inner wall 10. At the same time, because the buckle platform is inserted into the button hole, the upper cover 1 and the lower cover 2 cannot be easily loosened, ensuring that the fluid adhesive 8 will not fall off due to the drop of the product after solidification.

[0023] like Figure 6 or Figure 8 As shown, the upper inner wall 9 and the lower inner wall 10 are tightly attached to each other, and the two are engaged with each other through the cooperation of the snap-fit ​​portion 4 and the snap-fit ​​portion 6; the upper cover 1 and the lower cover 2 are firmly assembled by snap-fitting, thereby ensuring that the upper cover 1 and the lower cover 2 will not become loose after long-term use, and at the same time, the two will not become separated when they fall from a height after assembly, thereby ensuring the safety of use and the service life of the power supply.

[0024] The fluid adhesive 8 is turned over by the upper and lower covers, and solidifies and seals on the gap between the upper inner wall 9 and the lower inner wall 10 and / or seals on the gap between the buckle part 4 and the buckle fitting part 6 after a certain period of time. Since the upper inner wall 9 and the lower inner wall 10 are closely attached to each other, when the upper and lower covers are turned over, the fluid adhesive 8 will solidify and seal on the gap between the upper inner wall 9 and the lower inner wall 10 after a certain period of time, and will also seal on the gap between the buckle part 4 and the buckle fitting part 6, thereby achieving a waterproof function.

[0025] The upper cover 1 is also provided with an upper outer wall 11 , and the upper annular groove 5 is formed between the upper outer wall 11 and the upper inner wall 9 ; the lower cover 2 is also provided with a lower outer wall 12 , and the lower annular groove 7 is formed between the lower outer wall 12 and the lower inner wall 10 .

[0026] An upper positioning step 13 is provided on the upper outer wall 11 , and a lower positioning step 14 is provided on the lower outer wall 12 .

[0027] like Figure 6-Figure 8 As shown, the upper outer wall 11 is positioned relative to the lower outer wall 12 through the upper positioning step 13 and the lower positioning step 14; the fluid paste 8 is turned over on the upper and lower covers, and solidifies and seals on the gap between the upper positioning step 13 and the lower positioning step 14 after a certain period of time.

[0028] A wire passing opening 15 is provided on the lower inner wall 10 .

[0029] like Figure 7 As shown, the power cord 3 is tightly attached to the lower inner wall 10 and bent on the wire opening 15, and extends into the space between the upper and lower covers through the avoidance formed between the upper inner wall 9 and the lower inner wall 10; the fluid paste 8 is turned over by the upper and lower covers, and solidifies and seals on the gap between the power cord 3 and the lower inner wall 10 and / or the gap between the power cord 3 and the wire opening 15 and / or the gap between the power cord 3 and the avoidance after a certain period of time. Since the fluid paste is placed in the lower annular groove in advance, it will form a fitting wall on the lower inner wall 10 when placed, and the power cord 3 is bent on the wire opening 15 and tightly attached to the left and right sides of the lower inner wall 10 through the fitting wall, so the power cord 3 will not have displacement problems. When the upper and lower covers are turned over, the fluid adhesive 8 solidifies and seals the gap between the power cord 3 and the lower inner wall 10 after a certain period of time, further ensuring the stability of the power cord 3 after assembly. At the same time, the fluid adhesive 8 will also seal the gap between the power cord 3 and the wire opening 15, and the gap between the power cord 3 and the avoidance position, thereby ensuring the waterproofness of the power supply.

[0030] A cavity is provided between the upper cover 1 and the lower cover 2 , and a power board 17 is provided in the cavity; the power line 3 is electrically connected to the power board 17 .

[0031] A recess 18 is provided on the upper inner wall 9 , and a space is formed between the recess 18 and the lower inner wall 10 for the power cord 3 to extend into a space between the upper and lower covers.

[0032] A connector 19 is provided on the power line 3 , an upper clamping opening 20 is provided on the upper outer wall 11 , and a lower clamping opening 21 is provided on the lower outer wall 12 .

[0033] like Figure 6-Figure 8 As shown, the power cord 3 is arranged between the upper clamp 20 and the lower clamp 21 through the joint 19; the fluid paste 8 is turned over at the upper and lower covers, and solidifies and seals the gap between the joint 19 and the upper clamp 20 and the lower clamp 21 after a certain period of time. Due to the effect of the fluid paste 8, not only the waterproofness of the power supply is further improved, but also the power cord 3 will not be loosened after long-term use.

[0034] The assembly process is as follows:

[0035] 1. Weld the half of the power line 3 and the half of the power board 17.

[0036] 2. Pre-fill a certain amount of fluid paste 8 into the lower annular groove 7 of the lower shell 2, then align the welded connector 19 of the power cord 3 with the lower snap-on opening 21 of the lower outer wall 12, and snap-fit ​​the power cord 3 onto the lower snap-on opening 21, then place the power cord 3 on the wire opening 15 of the lower inner wall 12, then bend the power cord 3 and press it against the fitting walls on the left and right sides of the lower inner wall 12, thus completing the assembly of the lower shell 2, the power board 17, and the power cord 3.

[0037] 3. Then, the upper cover 1 is closed on the lower cover 2 by using the positioning function of the upper positioning step 13 and the lower positioning step 14. At the same time, the upper bayonet 20 is also clamped on the connector 19 of the power cord 3. In the above process, the upper cover 1 is clamped on the buckle fitting part 6 of the lower cover 2 through the buckle part 4, thereby ensuring the firm assembly between the upper cover 1 and the lower cover 2. The two will not separate from each other after falling or long-term use, thereby improving the safety and service life of the power supply.

[0038] Fourth, when the upper cover 1 and the lower cover 2 are snapped together and then turned 180 degrees, the fluid paste 8 in the lower annular groove 7 will flow from top to bottom into the upper annular groove 5 due to its own gravity, thereby filling up the upper annular groove 5. At the same time, the fluid paste 8 solidifies after a certain period of time, and is sealed and attached to all gaps formed between the upper cover 1, the lower cover 2 and the power cord 3 during assembly, thereby effectively blocking all gaps formed between the upper cover 1, the lower cover 2 and the power cord 3 during assembly. When the fluid paste 8 solidifies, it can completely seal the internal space between the upper cover 1 and the lower cover 2, thereby completely preventing water vapor or moisture from entering the interior of the upper cover 1 and the lower cover 2, greatly improving the waterproof performance of the power supply, and correspondingly improving the safety and service life of the power supply.

[0039] After testing, the dustproof and waterproof levels of this structure reach the highest dustproof and waterproof levels of IP67 or above, thus solving the problem that the current switching power supply and power adapter cannot truly and effectively achieve the highest level of waterproofness, thereby improving the environmental applicability of the switching power supply and power adapter.

[0040] The accompanying drawings are only for illustrative purposes and are schematic diagrams rather than actual drawings, and should not be construed as limitations on this patent. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0041] Moreover, the same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "lateral", "longitudinal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships, they are all based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent.

Claims

1. A power supply waterproof structure, comprising an upper cover (1), a lower cover (2) and a power cord (3), characterized in that: The upper cover (1) is provided with a buckle portion (4) and an upper annular groove (5), and the lower cover (2) is provided with a buckle fitting portion (6) and a lower annular groove (7); wherein a fluid paste (8) is pre-placed in the lower annular groove (7), and the power cord (3) is preset on the lower cover (2); the upper cover (1) is buckled with the buckle fitting portion (6) of the lower cover (2) through the buckle portion (4) and is pressed onto the power cord (3); after the upper cover (1) and the lower cover (2) are buckled, they are turned over, and the fluid paste (8) flows into the upper annular groove (5) by its own gravity, and solidifies and seals the gap between the upper cover (1), the lower cover (2) and the power cord (3) after a certain period of time; The upper cover (1) is provided with an upper inner wall (9), and the lower cover (2) is provided with a lower inner wall (10); the buckle portion (4) is provided on the upper inner wall (9), and the buckle fitting portion (6) is provided on the lower inner wall (10); the upper inner wall (9) and the lower inner wall (10) are closely attached to each other, and the two are mutually engaged through the cooperation of the buckle portion (4) and the buckle fitting portion (6); the fluid adhesive (8) is turned over on the upper and lower covers, and after a certain period of time, solidifies and seals on the gap between the upper inner wall (9) and the lower inner wall (10), and / or seals on the gap between the buckle portion (4) and the buckle fitting portion (6); The upper cover (1) is also provided with an upper outer wall (11), and an upper annular groove (5) is formed between the upper outer wall (11) and the upper inner wall (9); the lower cover (2) is also provided with a lower outer wall (12), and a lower annular groove (7) is formed between the lower outer wall (12) and the lower inner wall (10); The lower inner wall (10) is provided with a wire passing opening (15); the power cord (3) is closely attached to the lower inner wall (10) and bent on the wire passing opening (15), and extends into between the upper and lower covers through a clearance formed between the upper inner wall (9) and the lower inner wall (10); the fluid paste (8) is turned over by the upper and lower covers, and solidifies and seals on the gap between the power cord (3) and the lower inner wall (10) after a certain period of time, and / or seals on the gap between the power cord (3) and the wire passing opening (15), and / or seals on the gap between the power cord (3) and the clearance.

2. The power supply waterproof structure according to claim 1, characterized in that: The upper outer wall (11) is provided with an upper positioning step (13), and the lower outer wall (12) is provided with a lower positioning step (14); the upper outer wall (11) and the lower outer wall (12) are positioned relative to each other via the upper positioning step (13) and the lower positioning step (14); the fluid adhesive (8) is turned over on the upper and lower covers, and after a certain period of time, solidifies and seals the gap between the upper positioning step (13) and the lower positioning step (14).

3. The power supply waterproof structure according to claim 1, characterized in that: A cavity is provided between the upper cover (1) and the lower cover (2), and a power board (17) is provided in the cavity; the power line (3) is electrically connected to the power board (17).

4. The power supply waterproof structure according to claim 1, characterized in that: The upper inner wall (9) is provided with a recess (18), and a clearance space is formed between the recess (18) and the lower inner wall (10) for the power cord (3) to extend into between the upper and lower covers.

5. The power supply waterproof structure according to claim 1, characterized in that: The power cord (3) is provided with a connector (19), the upper outer wall (11) is provided with an upper snap-in opening (20), and the lower outer wall (12) is provided with a lower snap-in opening (21); the power cord (3) is arranged between the upper snap-in opening (20) and the lower snap-in opening (21) via the connector (19); the fluid adhesive (8) is turned over on the upper and lower covers, and after a certain period of time, solidifies and seals the gap between the connector (19) and the upper snap-in opening (20) and the lower snap-in opening (21).

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