A waterproof device for power supply shell

Abstract

A power supply shell waterproof device comprises an upper shell, a lower shell, a power cord, and a waterproof component. The waterproof component is formed integrally by a sealing position and a shell sealing position connected end to end. A joint is provided on the power cord, and is sealed and sleeved in the sealing position through the joint. An upper waterproof rib is provided on the upper shell, and is sealed and pressed above the sealing position and the shell sealing position through the upper waterproof rib. A lower waterproof rib is provided on the lower shell, and is sealed and pressed below the sealing position and the shell sealing position through the lower waterproof rib. The present invention not only increases the contact position between the upper shell, the lower shell, the joint, and the waterproof component after assembly to form more fitting surfaces through the improvement of the above structure, but also avoids the gap formed by the upper shell, the lower shell, the joint, and the waterproof component after assembly, thereby completely preventing water vapor or moisture from entering the interior of the upper shell and the lower shell, greatly improving the waterproof performance of the power supply shell, not only achieving the maximum waterproof effect, but also correspondingly improving the use safety and service life of the power supply shell.

Description

Technical Field

[0001] The invention relates to a waterproof device for a power supply shell. Background Art

[0002] Chinese patent document number CN207466404U disclosed a waterproof new energy vehicle charging control box on June 8, 2018, which includes an upper box body and a lower box body. An inlet sealing ring is provided in the spiral sheath at one end of the upper and lower box bodies, and an outlet sealing ring is provided in the spiral sheath at the other end. A plurality of sets of locking screws are symmetrically provided in the lower box body, and a conformal sealing strip is provided between the upper box body and the lower box body, and the cross-section of the sealing strip is H-shaped. It is said that the structure has the advantages of retaining the light-transmitting effect and absolutely guaranteeing the waterproof performance, solving the problem of cracking of the plastic shell, preventing the box body from breaking at the root of the nut when the box vibrates or falls, and extending its service life; however, the upper and lower boxes of the above structure use a flat pressed H-shaped sealing strip to achieve sealing and waterproofing, and its waterproofing effect is effective, and the input line and output line of the power supply are respectively sealed and waterproofed by using a separate setting of an incoming line sealing ring and an outgoing line sealing ring. Since the sealing strip, the incoming line sealing ring, and the outgoing line sealing ring are separately set, there will always be large or small gaps between the components after assembly. In actual use, water vapor or moisture will enter the interior of the upper and lower boxes from these gaps, affecting the normal operation of the electrical components inside the upper and lower boxes, and failing to achieve an effective sealing and waterproofing effect. Therefore, it is necessary to make further improvements. Summary of the invention

[0003] The purpose of the present invention is to provide a power supply shell waterproof device with simple and reasonable structure, excellent performance, firm assembly, 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 shell waterproof device designed for this purpose includes an upper shell, a lower shell, and a power cord, and is characterized in that: it also includes a waterproof component, which is integrally formed by a sealing line position and a shell sealing position connected end to end; a joint is provided on the power cord, and is sealed in the sealing line position through the joint sleeve; an upper waterproof rib is provided on the upper shell, and is sealed and pressed above the sealing line position and the shell sealing position through the upper waterproof rib; a lower waterproof rib is provided on the lower shell, and is sealed and pressed below the sealing line position and the shell sealing position through the lower waterproof rib.

[0005] The ends of the upper waterproof ribs and the lower waterproof ribs are respectively angular or arc-shaped, and / or the ends of the sealing line position and the shell sealing position are respectively angular or arc-shaped; the upper waterproof ribs are sealed and connected to the sealing line position and the shell sealing position through an angle or an arc, and the lower waterproof ribs are sealed and connected to the sealing line position and the shell sealing position through an angle or an arc.

[0006] The cross-section of the line sealing position and the shell sealing position is H-shaped, and an upper groove and a lower groove are respectively arranged on the upper and lower parts of the two; the end of the upper waterproof rib is angular or arc-shaped, and the sealing is pressed on the upper groove above the line sealing position and the shell sealing position; the lower waterproof rib is angular or arc-shaped, and the sealing is pressed on the lower groove below the line sealing position and the shell sealing position.

[0007] The inner ring of the line sealing position is provided with a waterproof bayonet; the joint is provided with an inner concave clamping ring, and is sealed and sleeved in the waterproof bayonet through the inner concave clamping ring.

[0008] An upper fixing groove is provided on the upper shell, and a lower fixing groove is provided on the lower shell; the joints are fixedly provided on the upper fixing groove and the lower fixing groove respectively; the ends of the waterproof bayonet and / or the concave snap ring are angular or arc-shaped, and the waterproof bayonet and the concave snap ring are sealed and connected to each other through the angle or arc.

[0009] The upper fixing groove is located outside the upper waterproof rib, and the lower fixing groove is located outside the lower waterproof rib.

[0010] The upper shell is also provided with an upper welding edge, and the lower shell is also provided with a lower welding edge; the upper shell is welded and fixed to each other through the upper welding edge and the lower welding edge of the lower shell, and after welding, the upper and lower waterproof ribs are respectively squeezed and sealed at the upper and lower parts of the sealing line position and the sealing shell position; wherein, the sealing line position is squeezed and sealed on the joint after the upper and lower shells are welded.

[0011] A cavity is arranged between the upper shell and the lower shell, and a power board is arranged in the cavity; the power line is electrically connected to the power board.

[0012] The upper welding edge is located outside the upper waterproof rib, and the lower welding edge is located outside the lower waterproof rib.

[0013] The waterproof part is made of a material with certain elasticity or plastic.

[0014] The present invention improves on the above structure, and is respectively provided with an upper waterproof rib and a lower waterproof rib with angular or arc-shaped ends on the upper shell and the lower shell, and at the same time, a waterproof part including a sealing line position and a sealing shell position is made of a material with a certain elasticity or plastic; during assembly, the upper shell and the lower shell are welded to each other, and then the two will use the pressure generated by welding to respectively press the upper and lower sides of the sealing line position and the sealing shell position through the angular or arc-shaped extrusion-type seal of the upper waterproof rib and the lower waterproof rib, and at the same time, when the upper shell and the lower shell are welded, the sealing line position will be pressed on the joint due to the effect of the welding pressure by the extrusion-type seal. Since the sealing method between the upper shell, the lower shell, the joint and the waterproof part is extrusion-type, the sealing connectivity between them can be effectively improved. At the same time, since the contact positions between the upper shell, the lower shell, the joint and the waterproof part are all angular or arc-shaped, not only the contact positions between them are increased, but also the shape More fitting surfaces are formed, and the waterproof parts can be effectively squeezed after assembly, so that the waterproof parts can produce the maximum deformation and the maximum resilience, so that the contact between the waterproof parts and the upper shell, the lower shell, and the joint is more closely fitted, and the integrated setting of the waterproof parts can avoid gaps formed by the upper shell, the lower shell, the joint, and the waterproof parts after assembly, thereby completely preventing water vapor or moisture from entering the interior of the upper shell and the lower shell, greatly improving the waterproof performance of the power supply shell, not only achieving the maximum waterproof effect, but also correspondingly improving the safety of use and the service life of the power supply shell, so as to solve the problem that the prior art only uses O-shaped or H-shaped sealing strips with poor waterproof effect, especially the openings with power input and output lines cannot achieve effective waterproofing during assembly, so that the upper shell, the lower shell, and the power cord can quickly and effectively achieve the highest waterproof effect after assembly.

[0015] In general, it has the characteristics of simple and reasonable structure, excellent performance, firm assembly, long service life, good waterproof effect, low manufacturing cost, easy production, easy implementation, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 , Figure 2 FIG. 1 is a schematic diagram of the exploded structure of the first embodiment of the present invention.

[0017] Figure 3 , Figure 4 , Figure 5 It is a schematic diagram of the assembly structure of the first embodiment of the present invention.

[0018] Figure 6 for Figure 5 Schematic diagram of the assembly structure cut along line AA.

[0019] Figure 7 for Figure 5 Schematic diagram of the decomposed structure cut along line AA. 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 7 The power supply shell waterproof device is mainly suitable for a switch power supply shell and a power adapter shell, and comprises an upper shell 1, a lower shell 2, a power cord 3, and a waterproof part 4.

[0022] like Figure 1 , Figure 2 As shown, the waterproof member 4 is formed in one piece by a material having a certain elasticity or plasticity, and includes a sealing line position 5 and a sealing shell position 6 connected end to end.

[0023] There are two power lines 3, which correspond to the power input line and the output line respectively, so there are two sealing positions 5 corresponding to the power lines 3, which are respectively located at the left and right ends of the enclosure position 6. Specifically, the sealing position 5 is in a circular ring shape or an elliptical ring shape, and the enclosure position 6 is in a square ring shape or a polygonal ring shape.

[0024] The power line 3 is provided with a connector 7 and is sealed and sleeved in the sealing line position 5 .

[0025] The upper shell 1 is provided with an upper waterproof rib 8, and is sealed and pressed above the sealing line position 5 and the shell sealing position 6 through the upper waterproof rib 8; the lower shell 2 is provided with a lower waterproof rib 9, and is sealed and pressed below the sealing line position 5 and the shell sealing position 6 through the lower waterproof rib 9.

[0026] The one-piece molding of the waterproof part 4 not only reduces the number of components and reduces production costs, but also avoids gaps formed between the upper shell 1, the lower shell 2, and the joint 7 after assembly, thereby completely preventing water vapor or moisture from entering the interior of the upper shell 1 and the lower shell 2, thereby improving the waterproof performance of the power supply shell.

[0027] The ends of the upper waterproof rib 8 and the lower waterproof rib 9 are respectively angular or arc-shaped, and / or the ends of the sealing line position 5 and the shell sealing position 6 are respectively angular or arc-shaped; the upper waterproof rib 8 and the sealing line position 5 and the shell sealing position 6 are sealed and connected to each other through an angle or an arc, and the lower waterproof rib 9 and the sealing line position 5 and the shell sealing position 6 are sealed and connected to each other through an angle or an arc.

[0028] Specifically, if Figure 6 , Figure 7 As shown, the cross-section of the sealing line position 5 and the sealing shell position 6 is H-shaped, and an upper groove 10 and a lower groove 11 are respectively provided on the upper and lower parts of the two; the end of the upper waterproof rib 8 is angular or arc-shaped, and is sealed and pressed on the upper groove 10 above the sealing line position 5 and the sealing shell position 6; the lower waterproof rib 9 is angular or arc-shaped, and is sealed and pressed on the lower groove 11 below the sealing line position 5 and the sealing shell position 6.

[0029] The inner ring of the sealing position 5 is provided with a waterproof bayonet 12 ; the joint 7 is provided with an inner concave snap ring 13 , and is sealed and sleeved in the waterproof bayonet 12 through the inner concave snap ring 13 .

[0030] like Figure 1 , Figure 2 As shown, the upper shell 1 is provided with an upper fixing groove 14, and the lower shell 2 is provided with a lower fixing groove 15; Figure 6 , Figure 7 As shown, the connector 7 is fixedly arranged on the upper fixing groove 14 and the lower fixing groove 15 respectively; wherein, the ends of the waterproof bayonet 12 and / or the concave snap ring 13 are angular or arc-shaped. In this embodiment, the ends of the waterproof bayonet 12 and the concave snap ring 13 are preferably arc-shaped, and the waterproof bayonet 12 and the concave snap ring 13 are sealed and connected to each other through the arc.

[0031] The contact positions between the upper shell 1, the lower shell 2, the joint 7, and the waterproof component 4 are all angular or arc-shaped, which not only increases the contact positions between each other and forms more fitting surfaces, but also allows the waterproof component 4 to be effectively squeezed after assembly, allowing the waterproof component 4 to produce the maximum degree of deformation and the maximum resilience, making the contact between the waterproof component 4 and the upper shell 1, the lower shell 2, and the joint 7 more closely fitted.

[0032] An upper welding edge 16 is also provided on the upper shell 1, and a lower welding edge 17 is also provided on the lower shell 2; the upper shell 1 is welded and fixed to each other through the upper welding edge 16 and the lower welding edge 17 of the lower shell 2, and after welding, they are respectively squeezed and sealed at the upper and lower parts of the sealing position 5 and the sealing position 6 through the upper waterproof ribs 8 and the lower waterproof ribs 9; wherein, the sealing position 5 is squeezed and sealed on the joint 7 after the upper and lower shells are welded.

[0033] Specifically, when the upper shell 1 and the lower shell 2 are ultrasonically welded, the ultrasonic line plastic on the upper welding edge 16 and the lower welding edge 17 will be welded due to the pressure and melting of the ultrasonic machine. In this process, a relatively active pressure will be generated between the upper shell 1 and the lower shell 2, so the upper shell 1 will be pressed above the sealing line position 5 and the sealing shell position 6 through the angle or arc extrusion seal of the upper waterproof rib 8, and the lower shell 2 will also be pressed below the sealing line position 5 and the sealing shell position 6 through the angle or arc extrusion seal of the lower waterproof rib 9. Because the waterproof part 4 has a certain elasticity or plasticity, the waterproof part 4 It will produce the maximum deformation and the maximum resilience. Similarly, the sealing line 5 will also be deformed and interact with the joint 7, which not only increases the contact position between the upper shell 1, the lower shell 2, the waterproof part 4, and the joint 7 to form more fitting surfaces, but also makes the contact between the upper shell 1, the lower shell 2, the waterproof part 4, and the joint 7 more closely fitted, thereby completely preventing water vapor or moisture from entering the interior of the upper shell 1 and the lower shell 2, greatly improving the waterproof performance of the power supply shell, not only achieving the maximum waterproof effect, but also correspondingly improving the safety of use and the service life of the power supply shell.

[0034] A cavity is provided between the upper shell 1 and the lower shell 2 , and a power board 18 is provided in the cavity; the power line 3 is electrically connected to the power board 18 .

[0035] The upper fixing groove 14 and the upper welding edge 16 are respectively located outside the upper waterproof rib 8, and the lower fixing groove 15 and the lower welding edge 17 are located outside the lower waterproof rib 9. Therefore, when the upper shell 1, the lower shell 2, and the power cord 3 are assembled, multiple waterproof effects will be formed between them, further improving the waterproofness of the power shell.

[0036] The assembly process is as follows:

[0037] 1. Insert the inner concave clamp ring 13 of the connector 7 into the waterproof clamping opening 12 of the sealing line position 5, and then weld the half of the power line 3 and the half of the power board 18.

[0038] Second, install the lower grooves 11 of the sealing line position 5 and the sealing shell position 6 into the lower waterproof rib 9 of the lower shell 2, and then install the connector 7 into the lower fixing groove 15 of the lower shell 2 to complete the assembly of the lower shell 2, the power line 3, and the power board 18.

[0039] 3. Install the upper waterproof rib 8 of the upper shell 1 into the upper clamping groove 10 of the sealing line position 5 and the sealing shell position 6, and then install the upper fixing groove 14 into the connector 7 to complete the pre-assembly of the upper shell 1, the lower shell 2, the power cord 3, and the power board 18.

[0040] Fourth, use an ultrasonic welding machine to weld the upper welding edge 16 and the lower welding edge 17 to complete the assembly of the upper shell 1, the lower shell 2, the power cord 3, and the power board 18. After the upper shell 1 and the lower shell 2 are welded, the highest waterproof effect of the power shell can be achieved quickly and effectively.

[0041] After testing, the dustproof and waterproof level of the power supply shell reaches the highest dustproof and waterproof level of IP67 or above, thus solving the dilemma that the prior art only uses O-shaped or H-shaped sealing strips with poor waterproof effect, especially the openings with power input and output lines cannot achieve effective waterproofing during assembly, thereby improving the environmental applicability of the power supply shell.

[0042] 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.

[0043] 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 housing waterproof device, comprising an upper housing (1), a lower housing (2), and a power cord (3), characterized in that: The device further comprises a waterproof component (4), wherein the waterproof component (4) is integrally formed by a sealing position (5) and a sealing position (6) connected end to end; a connector (7) is provided on the power cord (3), and is sealed and sleeved in the sealing position (5) through the connector (7); an upper waterproof rib (8) is provided on the upper shell (1), and is sealed and pressed above the sealing position (5) and the sealing position (6) through the upper waterproof rib (8); a lower waterproof rib (9) is provided on the lower shell (2), and is sealed and pressed below the sealing position (5) and the sealing position (6) through the lower waterproof rib (9); The ends of the upper waterproof rib (8) and the lower waterproof rib (9) are respectively angular or arc-shaped, and / or the ends of the sealing line position (5) and the sealing shell position (6) are respectively angular or arc-shaped; the upper waterproof rib (8) and the sealing line position (5) and the sealing shell position (6) are sealed to each other through the angle or arc, and the lower waterproof rib (9) and the sealing line position (5) and the sealing shell position (6) are sealed to each other through the angle or arc; The cross-sections of the line sealing position (5) and the shell sealing position (6) are H-shaped, and an upper groove (10) and a lower groove (11) are respectively arranged above and below the two positions; the end of the upper waterproof rib (8) is angular or arc-shaped, and is sealed and pressed on the upper groove (10) above the line sealing position (5) and the shell sealing position (6); the lower waterproof rib (9) is angular or arc-shaped, and is sealed and pressed on the lower groove (11) below the line sealing position (5) and the shell sealing position (6); The inner ring of the sealing position (5) is provided with a waterproof snap-in (12); the joint (7) is provided with an inner concave snap-in ring (13) and is sealed and sleeved in the waterproof snap-in ring (12) through the inner concave snap-in ring (13).

2. The power supply housing waterproof device according to claim 1, characterized in that: The upper shell (1) is provided with an upper fixing groove (14), and the lower shell (2) is provided with a lower fixing groove (15); the joint (7) is fixedly arranged on the upper fixing groove (14) and the lower fixing groove (15), respectively; the ends of the waterproof bayonet (12) and / or the concave snap ring (13) are angular or arc-shaped, and the waterproof bayonet (12) and the concave snap ring (13) are sealed and connected to each other via the angle or arc.

3. The power supply housing waterproof device according to claim 2, characterized in that: The upper fixing groove (14) is located outside the upper waterproof rib (8), and the lower fixing groove (15) is located outside the lower waterproof rib (9).

4. The power supply housing waterproof device according to claim 1, characterized in that: The upper shell (1) is also provided with an upper welding edge (16), and the lower shell (2) is also provided with a lower welding edge (17); the upper shell (1) is welded and fixed to the lower shell (2) by the upper welding edge (16), and after welding, the upper and lower waterproof ribs (8) and (9) are respectively squeezed and sealed at the upper and lower parts of the sealing line position (5) and the sealing shell position (6); wherein the sealing line position (5) is squeezed and sealed on the joint (7) after the upper and lower shells are welded.

5. The power supply housing waterproof device according to claim 4, characterized in that: The upper welding edge (16) is located outside the upper waterproof rib (8), and the lower welding edge (17) is located outside the lower waterproof rib (9).

6. The power supply housing waterproof device according to claim 1, characterized in that: A cavity is provided between the upper shell (1) and the lower shell (2), and a power board (18) is provided in the cavity; the power line (3) is electrically connected to the power board (18).

7. The power supply housing waterproof device according to claim 1, characterized in that: The waterproof component (4) is made of elastic or plastic material.

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