Waterproof switching power supply

Abstract

The utility model discloses a waterproof switching power supply, and relates to the technical field of switching power supplies, the switching power supply comprises a lower shell, an installation mechanism, a sealing mechanism and a fixed supporting mechanism, the upper end of the lower shell is provided with an upper shell, two opposite side walls of the lower shell are respectively provided with a second fixed cylinder, the two second fixed cylinders are internally provided with leads, and the leads are connected with the upper shell through a connecting rod. According to the utility model, the gap between the lower shell and the upper shell is sealed through the sealing ring, and the gap between the first fixing cylinder and the limiting cylinder is sealed through the sealing gasket; an elastic ring and an elastic rubber blocking piece are arranged on the side wall of a fixing frame in a sleeving mode, a gap between a second fixing cylinder and a wire is sealed, comprehensive sealing and water prevention of the switching power supply are achieved, water is prevented from entering the switching power supply, the switching power supply is protected, the wire is clamped and fixed through two clamping plates, and the stability of wire connection is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of switching power supplies, in particular to a waterproof switching power supply. Background Art

[0002] A switching power supply, also known as an exchange power supply or a switching converter, is a high-frequency power conversion device and a type of power supply. Its function is to convert a voltage level into the voltage or current required by the user through different forms of architecture. The input of a switching power supply is mostly AC power (such as mains) or DC power, and the output is mostly a device that requires DC power, such as a personal computer, and the switching power supply performs the voltage and current conversion between the two.

[0003] When the switching power supply is produced, the two shells are usually snapped together, and there will be a gap between the two shells, which can easily cause water to enter the switching power supply, causing the switching power supply to short-circuit. For example, the charging cable of a computer is often placed on a desktop when in use, and sometimes a cup of water is placed on the desktop. If the user accidentally knocks over the cup of water, water will spill on the charging cable switching power supply of the computer. The switching power supply that has water in it will short-circuit, affecting the safety of electricity use and making it inconvenient for users to use.

[0004] In view of the above problems, an improved waterproof switching power supply is now designed. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof switching power supply to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A waterproof switching power supply comprises a lower shell, a mounting mechanism, a sealing mechanism and a fixing support mechanism, wherein an upper shell is arranged at the upper end of the lower shell, and second fixing cylinders are installed on two opposite side walls of the lower shell, and wires are arranged inside the two second fixing cylinders, and the two wires are respectively electrically connected to the input end and the output end of the electric energy conversion module inside the lower shell.

[0008] The mounting mechanism is arranged on the lower shell and the upper shell, and is used to fix the lower shell and the upper shell together and seal the gap between the lower shell and the upper shell.

[0009] The sealing mechanism is arranged inside the second fixing tube and is used to seal the gap between the second fixing tube and the wire to prevent water from entering the interior of the lower shell through the second fixing tube.

[0010] The fixing support mechanism is arranged inside the second fixing cylinder, and is used to support and fix the wire, so as to prevent the connection point between the wire and the electric energy conversion module inside the lower shell from loosening and detaching during use.

[0011] As a further solution of the present invention: the mounting mechanism includes four first internally threaded cylinders, which are respectively vertically mounted on the four corners of the top of the upper shell, and first fixed cylinders corresponding to the first internally threaded cylinders are respectively vertically mounted on the four corners of the lower end of the lower shell, a first threaded rod used in conjunction with the first internally threaded cylinder is vertically arranged at the center position of the top of the first fixed cylinder, the upper end of the first threaded rod passes through the top of the first fixed cylinder and is arranged on the outside of the first fixed cylinder, a third rotating block for driving the first threaded rod to rotate is installed at the lower end of the first threaded rod, and the third rotating block is slidably connected to the inner wall of the first fixed cylinder, a limiting sealing assembly for sealing the gap is arranged between the lower shell and the upper shell, and between the first fixed cylinder and the first internally threaded cylinder, and an anti-detachment assembly is arranged inside the first fixed cylinder to prevent the third rotating block and the first threaded rod from detaching from the first fixed cylinder.

[0012] As a further solution of the utility model: the limit sealing assembly includes a block, which is installed at the lower end of the upper shell, and the upper end of the lower shell is provided with a slot used in conjunction with the block, and a sealing ring for sealing is installed at the bottom of the slot, and the block is inserted into the interior of the slot, and a limit cylinder used in conjunction with the first fixed cylinder is installed on the side wall of the first internal threaded cylinder, and the limit cylinder slides on the side wall of the first fixed cylinder, and a sealing gasket for sealing the gap between the limit cylinder and the first fixed cylinder is installed on the inner wall of the limit cylinder.

[0013] As a further solution of the utility model: the anti-disengagement component includes a retaining ring, which is installed on the inner wall of the first fixed cylinder, and the center position of the retaining ring is slidably connected with a sliding rod, the upper end of the sliding rod passes through the retaining ring and is installed on the lower end of the third rotating block, and the lower end of the sliding rod passes through the retaining ring and is installed with a second rotating block for driving the sliding rod to rotate, and the lower end of the second rotating block is provided with a cross groove for facilitating the staff to use a cross lift to rotate the second rotating block.

[0014] As a further solution of the utility model: the sealing mechanism includes a fixed frame, the fixed frame is installed on the side wall of the wire, the side wall of the fixed frame is sleeved with an elastic ring for sealing, the side wall of the elastic ring is installed with an elastic rubber baffle, and the end of the elastic rubber baffle away from the elastic ring is installed on the inner wall of the second fixed cylinder.

[0015] As a further solution of the utility model: a sealing ring is installed on the side wall of the fixing frame, and the elastic ring is sleeved on the side wall of the sealing ring.

[0016] As a further solution of the utility model: the fixed support mechanism includes two second internally threaded cylinders, the two second internally threaded cylinders are installed on two opposite side walls of the second fixed cylinder, the inner wall of the second internally threaded cylinder is rotatably connected to a second threaded rod through a thread, the end of the second threaded rod away from the center position of the second fixed cylinder passes through the second internally threaded cylinder and is installed with a first rotating block that is convenient for staff to rotate the second threaded rod, and the end of the second threaded rod away from the first rotating block passes through the second internally threaded cylinder and is rotatably connected to a clamp for clamping and fixing the wire.

[0017] As a further solution of the utility model: a cross groove is formed at one end of the first rotating block away from the second fixed cylinder, which is convenient for a worker to use a cross-type screwdriver to rotate the first rotating block.

[0018] As a further solution of the utility model: a rubber pad for protecting the wire is installed at one end of the clamping plate close to the wire.

[0019] As a further solution of the utility model: heat sinks for heat dissipation and temperature reduction are installed on the side walls of the lower shell and the upper shell.

[0020] As a further solution of the utility model: a rib plate for supporting the second fixed cylinder is installed on the side wall of the second fixed cylinder close to the lower shell, and the rib plate is installed on the side wall of the lower shell.

[0021] As a further solution of the utility model: a stopper for preventing the elastic ring from detaching from the fixing frame is installed on the side wall of the fixing frame away from the wire.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model inserts a card block into the card slot so that a sealing ring seals the gap between a lower shell and an upper shell, sleeves a limiting cylinder on the side wall of a first fixing cylinder so that a sealing gasket seals the gap between the first fixing cylinder and the limiting cylinder, fixes a fixing frame on the side wall of a wire, and sleeves an elastic ring and an elastic rubber baffle on the side wall of the fixing frame so as to seal the gap between a second fixing cylinder and the wire, thereby achieving comprehensive sealing and waterproofing of a switching power supply, preventing water from entering the inside of the switching power supply, and protecting the switching power supply.

[0024] The third rotating block is blocked by the retaining ring to prevent the third rotating block and the first threaded rod from being separated from the first fixed tube when the third rotating block and the first threaded rod are disassembled, thereby reducing the risk of losing the third rotating block and the first threaded rod and facilitating use by users.

[0025] The wires are clamped and fixed by two clamps to prevent the wires from shaking during use, thereby ensuring the stability of the wire connection and facilitating use by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model.

[0027] Figure 2 It is a structural schematic diagram of the limit sealing component in the utility model.

[0028] Figure 3 It is a structural schematic diagram of the anti-separation component in the utility model.

[0029] Figure 4 It is a structural schematic diagram of the sealing mechanism in the utility model.

[0030] Figure 5 It is a structural schematic diagram of the fixed support mechanism in the utility model.

[0031] Figure 6 It is a structural schematic diagram of the fixing frame in the utility model.

[0032] Among them: 1. lower shell; 2. upper shell; 3. first fixed cylinder; 4. second fixed cylinder; 5. wire; 6. first rotating block; 7. slot; 8. first threaded rod; 9. sealing ring; 10. limiting cylinder; 11. block; 12. sealing gasket; 13. first internally threaded cylinder; 14. second rotating block; 15. retaining ring; 16. sliding rod; 17. third rotating block; 18. fixed frame; 19. sealing ring; 20. elastic ring; 21. elastic rubber retaining sheet; 22. splint; 23. second internally threaded cylinder; 24. second threaded rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1-Figure 6 In an embodiment of the utility model, a waterproof switching power supply includes a lower shell 1, a mounting mechanism, a sealing mechanism and a fixing support mechanism. An upper shell 2 is arranged at the upper end of the lower shell 1. Second fixing cylinders 4 are installed on two opposite side walls of the lower shell 1. Wires 5 are arranged inside the two second fixing cylinders 4. The two wires 5 are electrically connected to the input end and the output end of the power conversion module inside the lower shell 1 respectively.

[0035] The mounting mechanism is arranged on the lower shell 1 and the upper shell 2 , and is used to fix the lower shell 1 and the upper shell 2 together and seal the gap between the lower shell 1 and the upper shell 2 .

[0036] The sealing mechanism is disposed inside the second fixing tube 4 , and is used to seal the gap between the second fixing tube 4 and the wire 5 , so as to prevent water from entering into the lower shell 1 through the second fixing tube 4 .

[0037] The fixing support mechanism is arranged inside the second fixing cylinder 4, and is used to support and fix the wire 5, so as to prevent the connection point between the wire 5 and the electric energy conversion module inside the lower shell 1 from loosening and detaching during use.

[0038] The mounting mechanism includes four first internally threaded barrels 13, which are respectively vertically mounted on the four corners of the top of the upper shell 2, and first fixed barrels 3 corresponding to the first internally threaded barrels 13 are respectively vertically mounted on the four corners of the lower end of the lower shell 1, and a first threaded rod 8 used in conjunction with the first internally threaded barrel 13 is vertically arranged at the center position of the top of the first fixed barrel 3, the upper end of the first threaded rod 8 passes through the top of the first fixed barrel 3 and is arranged on the outside of the first fixed barrel 3, and a third rotating block 17 for driving the first threaded rod 8 to rotate is installed at the lower end of the first threaded rod 8, and the third rotating block 17 is slidably connected to the inner wall of the first fixed barrel 3, and a limiting sealing assembly for sealing the gap is arranged between the lower shell 1 and the upper shell 2, and between the first fixed barrel 3 and the first internally threaded barrel 13, and an anti-separation assembly for preventing the third rotating block 17 and the first threaded rod 8 from detaching from the first fixed barrel 3 is arranged inside the first fixed barrel 3.

[0039] The limiting sealing assembly includes a block 11, which is installed at the lower end of the upper shell 2. The upper end of the lower shell 1 is provided with a slot 7 for use with the block 11. A sealing ring 9 for sealing is installed at the bottom of the slot 7. The block 11 is inserted into the slot 7. A limiting cylinder 10 for use with the first fixed cylinder 3 is installed on the side wall of the first internal threaded cylinder 13. The limiting cylinder 10 is slidably sleeved on the side wall of the first fixed cylinder 3. A sealing gasket 12 for sealing the gap between the limiting cylinder 10 and the first fixed cylinder 3 is installed on the inner wall of the limiting cylinder 10.

[0040] The anti-separation component includes a retaining ring 15, which is installed on the inner wall of the first fixed cylinder 3. The center position of the retaining ring 15 is slidably connected with a slide rod 16. The upper end of the slide rod 16 passes through the retaining ring 15 and is installed on the lower end of the third rotating block 17. The lower end of the slide rod 16 passes through the retaining ring 15 and is installed with a second rotating block 14 for driving the slide rod 16 to rotate. The lower end of the second rotating block 14 is provided with a cross groove for the staff to use a cross to rotate the second rotating block 14.

[0041] When in use, the limiting cylinder 10 is sleeved on the side wall of the first fixed cylinder 3, and the lower shell 1 and the upper shell 2 are merged together. At this time, the card block 11 is inserted into the inside of the card slot 7, and the card slot 7 squeezes the sealing ring 9. The sealing ring 9 is used to seal the gap between the lower shell 1 and the upper shell 2. At the same time, the sealing gasket 12 on the limiting cylinder 10 seals the gap between the limiting cylinder 10 and the first fixed cylinder 3.

[0042] Then the staff rotates the second rotating block 14, the second rotating block 14 drives the sliding rod 16 to rotate, the sliding rod 16 drives the third rotating block 17 to rotate, and the third rotating block 17 drives the first threaded rod 8 to rotate. Under the action of the thread, the first threaded rod 8 and the first internally threaded tube 13 are fixed together, so that the lower shell 1 and the upper shell 2 are fixed together. At the same time, the clamping block 11 can squeeze the sealing ring 9 to improve the sealing efficiency of the sealing ring 9.

[0043] During disassembly, the staff rotates the second rotating block 14, the second rotating block 14 drives the sliding rod 16 to rotate, the sliding rod 16 drives the third rotating block 17 to rotate, the third rotating block 17 drives the first threaded rod 8 to rotate, and the first threaded rod 8 is separated from the first internal threaded tube 13. Due to the obstruction of the retaining ring 15, the third rotating block 17 and the first threaded rod 8 will not fall off the first fixed tube 3, thereby avoiding the loss of the third rotating block 17 and the first threaded rod 8.

[0044] The sealing mechanism includes a fixed frame 18, which is installed on the side wall of the wire 5. An elastic ring 20 for sealing is sleeved on the side wall of the fixed frame 18. An elastic rubber baffle 21 is installed on the side wall of the elastic ring 20. The end of the elastic rubber baffle 21 away from the elastic ring 20 is installed on the inner wall of the second fixed cylinder 4. A sealing ring 19 is installed on the side wall of the fixed frame 18, and the elastic ring 20 is sleeved on the side wall of the sealing ring 19.

[0045] Since the elastic ring 20 is elastic, the elastic ring 20 will be tightly fitted on the side wall of the fixed frame 18, and cooperate with the elastic rubber baffle 21 to seal the gap between the second fixed cylinder 4 and the wire 5. When the wire 5 shakes, since both the elastic ring 20 and the elastic rubber baffle 21 are elastic, the sealing effect of the elastic ring 20 and the elastic rubber baffle 21 will not be affected.

[0046] The fixed support mechanism includes two second internally threaded barrels 23, which are installed on two opposite side walls of the second fixed barrel 4. The inner wall of the second internally threaded barrel 23 is connected to a second threaded rod 24 through a threaded rotation. One end of the second threaded rod 24 away from the center position of the second fixed barrel 4 passes through the second internally threaded barrel 23 and is installed with a first rotating block 6 for facilitating the staff to rotate the second threaded rod 24. One end of the second threaded rod 24 away from the first rotating block 6 passes through the second internally threaded barrel 23 and is rotatably connected to a clamping plate 22 for clamping and fixing the wire 5.

[0047] When in use, the staff rotates the first rotating block 6, and the first rotating block 6 drives the second threaded rod 24 to rotate. Under the action of the thread, the second threaded rod 24 drives the clamping plate 22 to move, so that the clamping plate 22 clamps and fixes the wire 5 to prevent the wire 5 from shaking.

[0048] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A waterproof switching power supply, comprising a lower shell (1), a mounting mechanism, a sealing mechanism and a fixing support mechanism, wherein an upper shell (2) is arranged at the upper end of the lower shell (1), characterized in that: Second fixing cylinders (4) are installed on two opposite side walls of the lower shell (1), and wires (5) are arranged inside the two second fixing cylinders (4), and the two wires (5) are respectively electrically connected to the input end and the output end of the electric energy conversion module inside the lower shell (1); The mounting mechanism is arranged on the lower shell (1) and the upper shell (2) and is used to fix the lower shell (1) and the upper shell (2) together and to seal the gap between the lower shell (1) and the upper shell (2); The sealing mechanism is arranged inside the second fixing tube (4) and is used to seal the gap between the second fixing tube (4) and the wire (5) to prevent water from entering the interior of the lower shell (1) through the second fixing tube (4); The fixing support mechanism is arranged inside the second fixing cylinder (4) and is used to support and fix the wire (5) to prevent the connection point between the wire (5) and the electric energy conversion module inside the lower shell (1) from loosening and detaching during use.

2. A waterproof switching power supply according to claim 1, characterized in that: The mounting mechanism comprises four first internally threaded cylinders (13), which are respectively vertically mounted on the four corners of the top of the upper shell (2); first fixed cylinders (3) corresponding to the first internally threaded cylinders (13) are respectively vertically mounted on the four corners of the lower end of the lower shell (1); a first threaded rod (8) used in conjunction with the first internally threaded cylinder (13) is vertically arranged at the center of the top of the first fixed cylinder (3); the upper end of the first threaded rod (8) passes through the top of the first fixed cylinder (3) and is arranged on the first fixed cylinder (3); On the outside, a third rotating block (17) for driving the first threaded rod (8) to rotate is installed at the lower end of the first threaded rod (8), and the third rotating block (17) is slidably connected to the inner wall of the first fixed cylinder (3). A limiting sealing component for sealing the gap is provided between the lower shell (1) and the upper shell (2), and between the first fixed cylinder (3) and the first internally threaded cylinder (13). An anti-separation component for preventing the third rotating block (17) and the first threaded rod (8) from separating from the first fixed cylinder (3) is provided inside the first fixed cylinder (3).

3. A waterproof switching power supply according to claim 2, characterized in that: The limit seal assembly comprises a clamping block (11), wherein the clamping block (11) is mounted at the lower end of the upper shell (2); a clamping groove (7) for use with the clamping block (11) is provided at the upper end of the lower shell (1); a sealing ring (9) for sealing is installed at the bottom of the clamping groove (7); the clamping block (11) is inserted into the interior of the clamping groove (7); a limit cylinder (10) for use with the first fixed cylinder (3) is installed on the side wall of the first internally threaded cylinder (13); the limit cylinder (10) is slidably sleeved on the side wall of the first fixed cylinder (3); and a sealing gasket (12) for sealing the gap between the limit cylinder (10) and the first fixed cylinder (3) is installed on the inner wall of the limit cylinder (10).

4. A waterproof switching power supply according to claim 2, characterized in that: The anti-separation component comprises a retaining ring (15), wherein the retaining ring (15) is mounted on the inner wall of the first fixed cylinder (3), a sliding rod (16) is slidably connected to the center position of the retaining ring (15), an upper end of the sliding rod (16) passes through the retaining ring (15) and is mounted on the lower end of a third rotating block (17), a lower end of the sliding rod (16) passes through the retaining ring (15) and is mounted with a second rotating block (14) for driving the sliding rod (16) to rotate, and a cross groove is provided at the lower end of the second rotating block (14) for facilitating a worker to use a cross to rotate the second rotating block (14).

5. The waterproof switching power supply according to claim 1, characterized in that: The sealing mechanism comprises a fixing frame (18), the fixing frame (18) being mounted on the side wall of the wire (5), an elastic ring (20) for sealing being sleeved on the side wall of the fixing frame (18), an elastic rubber baffle (21) being mounted on the side wall of the elastic ring (20), and an end of the elastic rubber baffle (21) away from the elastic ring (20) being mounted on the inner wall of the second fixing cylinder (4).

6. A waterproof switching power supply according to claim 5, characterized in that: A sealing ring (19) is installed on the side wall of the fixing frame (18), and the elastic ring (20) is sleeved on the side wall of the sealing ring (19).

7. A waterproof switching power supply according to claim 1, characterized in that: The fixed support mechanism comprises two second internally threaded cylinders (23), the two second internally threaded cylinders (23) being mounted on two opposite side walls of the second fixed cylinder (4), the inner wall of the second internally threaded cylinder (23) being rotatably connected to a second threaded rod (24) through a thread, one end of the second threaded rod (24) away from the center of the second fixed cylinder (4) passing through the second internally threaded cylinder (23) being mounted with a first rotating block (6) for facilitating the rotation of the second threaded rod (24) by a staff, and one end of the second threaded rod (24) away from the first rotating block (6) passing through the second internally threaded cylinder (23) being rotatably connected to a clamping plate (22) for clamping and fixing the wire (5).

8. A waterproof switching power supply according to claim 7, characterized in that: The end of the first rotating block (6) away from the second fixed cylinder (4) is provided with a cross groove for facilitating a worker to use a cross-type screwdriver to rotate the first rotating block (6).

9. The waterproof switching power supply according to claim 7, characterized in that: A rubber pad for protecting the wire (5) is installed at one end of the clamping plate (22) close to the wire (5).

10. The waterproof switching power supply according to claim 1, characterized in that: Heat sinks for facilitating heat dissipation and temperature reduction are installed on the side walls of the lower shell (1) and the upper shell (2).

11. The waterproof switching power supply according to claim 1, characterized in that: A rib plate used to support the second fixed cylinder (4) is installed on the side wall of the second fixed cylinder (4) close to the lower shell (1), and the rib plate is installed on the side wall of the lower shell (1).

12. The waterproof switching power supply according to claim 5, characterized in that: A stopper for preventing the elastic ring (20) from detaching from the fixing frame (18) is installed on the side wall of the fixing frame (18) away from the wire (5).

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