An easy-to-assemble waterproof power supply structure

Abstract

An easily assembled waterproof power supply structure includes a shell, a circuit board, an SR line and a fastener. The shell is integrally formed with an electrical connection part and a fastening fitting part. The SR line is integrally formed with an electrical connection fitting part, and is electrically connected to one end of the electrical connection part through the electrical connection fitting part, and is fastened to the shell through the cooperation of the fastener and the fastening fitting part. The circuit board is built into the shell and is electrically connected to the other end of the electrical connection part. The present invention can achieve a quick fastening connection between the SR line, the shell, and the circuit board through the improvement of the above structure, avoiding the prior art of opening a hole in the shell, then assembling the power lead on the hole, and then filling glue to complete the assembly between the power lead, the shell, and the circuit board, which brings a series of problems such as multiple assembly processes, low production efficiency, and poor waterproof stability. At the same time, since the circuit board is built into the shell, it can protect the circuit board well, so that the circuit board can achieve a good sealing and waterproof assembly effect.

Description

Technical Field

[0001] The invention relates to an easily assembled waterproof power supply structure. Background Art

[0002] Chinese patent document number CN209562392U disclosed a waterproof power adapter on October 29, 2019, which includes a shell, a circuit board arranged in the shell and power leads arranged at both ends of the shell, and the shell is provided with a wiring hole corresponding to the power lead, and the power lead is sealed and connected to the wiring hole through a sealing component, the shell includes a bottom shell, a cover body covering the opening of the bottom shell, the cover body includes a cover plate and a guide inclined plate arranged on the edge of the cover plate, the top end of the guide inclined plate is connected to the cover plate, and the bottom end of the guide inclined plate is connected to the bottom shell, and a glue pouring groove for pouring sealant is formed between the guide inclined plate and the inner side wall of the bottom shell; a glue storage groove is provided on the bottom shell corresponding to the wiring hole, and the glue pouring groove is connected to the glue storage groove. When installing the power lead of the above structure, it must first be pre-installed on the wiring hole of the housing, then wait for the machine or manual glue filling operation to be completed, and finally wait for the glue to solidify before the power lead can be waterproofed. The assembly process is multi-step and the production efficiency is low. At the same time, the amount of glue, flow direction, solidification time, etc. cannot be controlled, resulting in poor waterproof stability of the power lead. Therefore, further improvement is necessary. Summary of the invention

[0003] The purpose of the present invention is to provide an easy-to-assemble waterproof power supply structure to overcome the shortcomings of the prior art, such as multiple power lead assembly processes, low production efficiency, and poor waterproof stability.

[0004] An easy-to-assemble waterproof power supply structure designed for this purpose includes a shell, a circuit board and an SR line, and is characterized in that: it also includes a fastener; the shell is integrally formed with an electrical connection part and a fastening fitting part, the SR line is integrally formed with an electrical connection fitting part, and is electrically connected to one end of the electrical connection part through the electrical connection fitting part, and is fastened to the shell through the cooperation of the fastener and the fastening fitting part; the circuit board is built into the shell and is electrically connected to the other end of the electrical connection part.

[0005] A waterproof component is also provided between the SR line and the housing, and the two are waterproofly fastened and connected via the waterproof component.

[0006] The fastener and the fastening matching part are matched with each other through threads, snaps, or adhesion.

[0007] The fastener is a nut; the outer wall of the shell is integrally formed with a hollow boss; the fastening fitting portion is a threaded portion, and is integrally arranged on the periphery of the hollow boss; the SR wire is passed through the nut, and the nut is threadedly fitted with the threaded portion of the hollow boss to achieve a fastened connection between the SR wire and the shell.

[0008] The shell is made of plastic; the electrical connection part is injection-molded and integrally arranged on the shell, and one end of it is located in the hollow boss; the SR line is positioned and inserted in the hollow boss, and is electrically connected to one end of the electrical connection part through the electrical connection mating part; the other end of the electrical connection part is located in the shell, and is electrically connected to the circuit board.

[0009] A positioning portion is provided at the inner end of the nut member; an inserting portion and a positioning matching portion are provided on the SR line, wherein the outer dimension of the inserting portion is smaller than the inner dimension of the hollow boss; the SR line is inserted into the hollow boss through the inserting portion for positioning; the nut member passes through the SR line and acts on the positioning matching portion of the SR line for positioning through the positioning portion.

[0010] The outer dimension of the positioning fitting part is larger than the outer dimension of the plug-in part and the inner dimension of the hollow boss; the waterproof part is sleeved on the plug-in part and positioned between the positioning fitting part and the hollow boss; during assembly, the nut part acts through the positioning part and drives the positioning fitting part to extrude the waterproof part, and the waterproof part is deformed by the extrusion of the positioning fitting part and is sealed on the gap formed between the positioning fitting part and the hollow boss to realize a waterproof fastening connection between the SR line and the shell.

[0011] The shell includes a first shell and a second shell, the first shell and the second shell are respectively made of plastic and fixedly connected to each other, and a cavity is formed between the two; the circuit board is arranged in the cavity; the electrical connection part is injection-molded and integrally arranged on the first shell or the second shell, and one end of it is located outside the cavity and is electrically connected to the electrical connection matching part of the SR line, and the other end is located in the cavity and is electrically connected to the circuit board.

[0012] The circuit board is provided with a conductive part; the electrical connection part is assembled on the conductive part, and the two are electrically connected by welding after being assembled.

[0013] The first shell is provided with a slot, and the second shell is provided with a pin, or the first shell is provided with a pin, and the second shell is provided with a slot.

[0014] A sealing member is arranged on the groove.

[0015] The first shell and the second shell are fixed to each other and the seal is squeezed by the pins. The seal is deformed by the squeezing of the pins and is sealed to the gap formed between the pins and the slots to achieve a sealed fixed connection between the first shell and the second shell.

[0016] The present invention improves upon the above structure by integrally forming an electrical connection portion on the shell, and the SR line is electrically connected to one end of the electrical connection portion by utilizing the electrical connection mating portion integrally formed thereon, and then the fastener cooperates with the fastening mating portion integrally formed on the shell, thereby achieving a fastened connection between the SR line and the shell. Due to the fastening effect of the fastener and the fastening mating portion, the SR line can be firmly assembled on the shell, thereby avoiding the problem of the SR line loosening from the shell due to external force, thereby improving the stability and life of the product.

[0017] The other end of the electrical connection part is electrically connected to the circuit board in the shell, thereby realizing the rapid assembly of the SR line and the circuit board, avoiding the prior art of drilling a hole in the shell, then assembling the power lead on the hole, and then filling glue to complete the assembly between the power lead, the shell, and the circuit board, which brings a series of problems such as many assembly steps, low production efficiency, and poor waterproof stability. This effectively simplifies the assembly structure between the shell, the circuit board, and the SR line, reduces production costs, and improves production efficiency. At the same time, since the circuit board is built into the shell, it can protect the circuit board well, so that the circuit board can achieve a good sealing and waterproof assembly effect.

[0018] In general, it has the characteristics of simple and reasonable structure, excellent performance, low manufacturing cost, convenience, safety, reliability, comfort and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 , Figure 2 It is a schematic diagram of the decomposed structure of an embodiment of the present invention.

[0020] Figure 3 , Figure 4 It is a schematic diagram of the assembly structure of an embodiment of the present invention.

[0021] Figure 5 It is a schematic diagram of a cross-sectional assembly structure of an embodiment of the present invention.

[0022] Figure 6 for Figure 5 A in the figure is an enlarged structural diagram. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 6The easy-to-assemble waterproof power supply structure includes a shell, a circuit board 1, an SR line 2, and a fastener; the shell is integrally formed with an electrical connection part 3 and a fastening fitting part, the SR line 2 is integrally formed with an electrical connection fitting part 4, and is electrically connected to one end of the electrical connection part 3 through the electrical connection fitting part 4, and is fastened to the shell through the fastener and the fastening fitting part; the circuit board 1 is built into the shell and is electrically connected to the other end of the electrical connection part 3.

[0025] An electrical connecting part 3 is integrally formed on the shell, and the SR line 2 is electrically connected to one end of the electrical connecting part 3 by utilizing the electrical connecting matching part 4 integrally formed thereon, and then the fastener cooperates with the fastening matching part integrally formed on the shell, thereby realizing the fastening connection between the SR line 2 and the shell. Due to the fastening effect of the fastener and the fastening matching part, the SR line 2 can be firmly assembled on the shell, avoiding the problem of the SR line 2 loosening from the shell due to external force, thereby improving the stability and life of the product.

[0026] The other end of the electrical connection portion 3 is electrically connected to the circuit board 1 in the shell, thereby realizing the rapid assembly of the SR line 2 and the circuit board 1, avoiding the prior art of drilling a hole in the shell, then assembling the power lead on the hole, and then filling glue to complete the assembly between the power lead, the shell, and the circuit board, which brings a series of problems such as many assembly steps, low production efficiency, and poor waterproof stability. This effectively simplifies the assembly structure between the shell, the circuit board 1 and the SR line 2, reduces production costs, and improves production efficiency. At the same time, since the circuit board 1 is built into the shell, it can protect the circuit board 1 very well, so that the circuit board 1 can achieve a good sealing and waterproof assembly effect.

[0027] In order to further improve the sealing and waterproof effect of the SR line 2 during assembly, a waterproof member 5 is further provided between the SR line 2 and the housing, and the two are waterproofly fastened and connected via the waterproof member 5 .

[0028] There are many ways to cooperate between the fastener and the fastening matching part, and the two can cooperate with each other through threads, snaps, or adhesion.

[0029] The preferred fastener of this embodiment is a nut member 6; the outer wall of the shell is integrally formed with a hollow boss 7; the fastening fitting portion is a threaded portion 8, and is integrally arranged on the periphery of the hollow boss 7; the SR wire 2 is passed through the nut member 6, and the nut member 6 is threadedly matched with the threaded portion 8 of the hollow boss 7 to achieve a fastened connection between the SR wire 2 and the shell.

[0030] The nut member 6 cooperates with the hollow boss 7 by means of threads, thereby simplifying the assembly process of the two. At the same time, the interaction of the threads can make the assembly of the two quite firm, so that the SR wire 2 is tightly assembled on the housing.

[0031] In order to further reduce production costs, the shell is made of plastic; the electrical connection part 3 is a metal connector and is integrally arranged on the shell by injection molding, and one end of it is located in the hollow boss 7; the electrical connection matching part 4 is a metal plug hole and is arranged at the end of the SR line 2; the SR line 2 is positioned and inserted in the hollow boss 7, and is electrically connected to one end of the electrical connection part 3 through the electrical connection matching part 4; the other end of the electrical connection part 3 is located in the shell and is electrically connected to the circuit board 1.

[0032] Furthermore, a positioning portion 9 is provided at the inner end of the nut member 6; an inserting portion 10 and a positioning matching portion 11 are provided on the SR wire 2, wherein the outer dimension of the inserting portion 10 is smaller than the inner dimension of the hollow boss 7; the SR wire 2 is positioned and inserted in the hollow boss 7 through the inserting portion 10; the nut member 6 passes through the SR wire 2, and is positioned on the positioning matching portion 11 of the SR wire 2 through the positioning portion 9.

[0033] The outer dimensions of the positioning fitting portion 11 are larger than the outer dimensions of the plug-in portion 10 and the inner dimensions of the hollow boss 7; the waterproof component 5 is sleeved on the plug-in portion 10 and positioned between the positioning fitting portion 11 and the hollow boss 7; during assembly, the nut component 6 acts through the positioning portion 9 and drives the positioning fitting portion 11 to extrude the waterproof component 5, and the waterproof component 5 is deformed by the extrusion of the positioning fitting portion 11 and is sealed to the gap formed between the positioning fitting portion 11 and the hollow boss 7, so as to realize a waterproof fastening connection between the SR line 2 and the shell.

[0034] The nut member 6 is used to push the positioning fitting portion 11 through the positioning portion 9 during assembly, and the positioning fitting portion 11 then squeezes the waterproof member 5 so that the waterproof member 5 is sealed and fits in the gap formed between the positioning fitting portion 11 and the hollow boss 7, thereby effectively filling all gaps formed between the SR line 2 and the shell during assembly to completely prevent water vapor from entering the interior of the shell, greatly improving the waterproof performance of the product, and correspondingly improving the product's safety and service life, effectively solving the technical problem of waterproofing difficulty in the prior art.

[0035] Furthermore, the shell includes a first shell 12 and a second shell 13, the first shell 12 and the second shell 13 are respectively made of plastic and fixedly connected to each other, and a cavity 14 is formed between the two; the circuit board 1 is arranged in the cavity 14; the electrical connection part 3 is injection-molded and integrally arranged on the first shell 12 or the second shell 13, and one end of it is located outside the cavity 14 and is electrically connected to the electrical connection matching part 4 of the SR line 2, and the other end is located in the cavity 14 and is electrically connected to the circuit board 1.

[0036] The circuit board 1 is provided with a conductive part 15; the electrical connection part 3 is assembled on the conductive part 15, and the two are electrically connected by welding after being assembled.

[0037] The electrical connection part 3 is a metal connector and is L-shaped. One end of the metal connector is located outside the cavity 14 and is electrically connected to the electrical connection matching part 4 of the SR line 2 by quick plugging. The other end of the metal connector is located inside the cavity 14 and is quickly plugged into the conductive part 15 on the circuit board 1, and then the electrical connection is achieved by soldering. The quick plugging method can achieve quick assembly between the SR line 2 and the circuit board 1, simplify the assembly structure, reduce the difficulty of production, and cooperate with the nut 6 to ensure a firm connection between the housing, the circuit board 1 and the SR line 2.

[0038] The first shell 12 is provided with a slot 16 , and the second shell 13 is provided with a pin 17 , or the first shell 12 is provided with a pin 17 , and the second shell 13 is provided with a slot 16 .

[0039] A sealing member 18 is disposed on the groove 16 .

[0040] The first shell 12 and the second shell 13 are fixed to each other and the seal 18 is squeezed by the pin 17. The seal 18 is deformed by the squeezing of the pin 17 and is sealed to the gap formed between the pin 17 and the slot 16 to achieve a sealed fixed connection between the first shell 12 and the second shell 13.

[0041] The seal 18 is squeezed by the pin 17 during assembly, so that the seal 18 is sealed and fitted in the gap formed between the pin 17 and the slot 16, thereby effectively filling all gaps formed between the first shell 12 and the second shell 13 during assembly to completely prevent water vapor from entering the cavity 14, greatly improving the waterproof performance of the product, and correspondingly improving the product's safety and service life, effectively solving the technical problem of waterproofing difficulty in the prior art, and maximizing the product's sealing and waterproofing effect.

[0042] The first shell 12 and the second shell 13 may be fixed together by means of snap connection, welding, screws, glue injection, etc., and this embodiment does not limit the fixing method.

[0043] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. An easily assembled waterproof power supply structure, comprising a housing, a circuit board (1) and an SR line (2), characterized in that: It also includes a fastener; the housing is integrally formed with an electrical connection portion (3) and a fastening matching portion, the SR line (2) is integrally formed with an electrical connection matching portion (4), and is electrically connected to one end of the electrical connection portion (3) through the electrical connection matching portion (4), and is fastened to the housing through the fastener and the fastening matching portion; the circuit board (1) is built into the housing and is electrically connected to the other end of the electrical connection portion (3); A waterproof component (5) is also provided between the SR line (2) and the housing, and the two are waterproofly fastened and connected via the waterproof component (5); The fastener and the fastening matching part are matched with each other through threads, buckles, or adhesion; The fastener is a nut (6); the outer wall of the shell is integrally formed with a hollow boss (7); the fastening fitting portion is a threaded portion (8) and is integrally arranged on the outer periphery of the hollow boss (7); the SR wire (2) is passed through the nut (6) and threadedly fitted with the threaded portion (8) of the hollow boss (7) by the nut (6) to achieve a fastened connection between the SR wire (2) and the shell; The housing is made of plastic; the electrical connection part (3) is integrally provided on the housing by injection molding, and one end of the electrical connection part (3) is located in the hollow boss (7); the SR line (2) is inserted into the hollow boss (7) and is electrically connected to one end of the electrical connection part (3) through the electrical connection matching part (4); the other end of the electrical connection part (3) is located in the housing and is electrically connected to the circuit board (1); The inner end of the nut member (6) is provided with a positioning portion (9); the SR wire (2) is provided with an inserting portion (10) and a positioning matching portion (11), wherein the outer dimension of the inserting portion (10) is smaller than the inner dimension of the hollow convex column (7); the SR wire (2) is inserted and positioned in the hollow convex column (7) through the inserting portion (10); the nut member (6) passes through the SR wire (2) and is positioned on the positioning matching portion (11) of the SR wire (2) through the positioning portion (9); The outer dimensions of the positioning fitting portion (11) are larger than the outer dimensions of the plug-in portion (10) and the inner dimensions of the hollow protrusion (7); the waterproof component (5) is sleeved on the plug-in portion (10) and positioned between the positioning fitting portion (11) and the hollow protrusion (7); during assembly, the nut component (6) acts through the positioning portion (9) and drives the positioning fitting portion (11) to extrude the waterproof component (5); the waterproof component (5) is deformed by the extrusion of the positioning fitting portion (11) and is sealed to the gap formed between the positioning fitting portion (11) and the hollow protrusion (7), so as to realize a waterproof fastening connection between the SR line (2) and the housing.

2. The easily assembled waterproof power supply structure according to claim 1, characterized in that: The shell comprises a first shell (12) and a second shell (13), the first shell (12) and the second shell (13) are respectively made of plastic and are fixedly connected to each other, and a cavity (14) is formed between the two; the circuit board (1) is arranged in the cavity (14); the electrical connection part (3) is injection-molded and integrally arranged on the first shell (12) or the second shell (13), and one end of the electrical connection part (3) is located outside the cavity (14) and is electrically connected to the electrical connection matching part (4) of the SR line (2), and the other end is located in the cavity (14) and is electrically connected to the circuit board (1).

3. The easily assembled waterproof power supply structure according to claim 2, characterized in that: The circuit board (1) is provided with a conductive part (15); the electrical connection part (3) is assembled on the conductive part (15), and the two are electrically connected by welding after being assembled.

4. The easily assembled waterproof power supply structure according to claim 2, characterized in that: The first shell (12) is provided with a slot (16), and the second shell (13) is provided with a pin (17), or the first shell (12) is provided with a pin (17), and the second shell (13) is provided with a slot (16); A sealing member (18) is provided on the groove (16); The first shell (12) and the second shell (13) are fixed to each other and the sealing member (18) is squeezed by the plug pin (17). The sealing member (18) is deformed by the squeezing of the plug pin (17) and is sealed to the gap formed between the plug pin (17) and the slot (16), so as to realize a sealed fixed connection between the first shell (12) and the second shell (13).

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