CN209948979U

CN209948979U - Power adapter with waterproof function for LED screen

Info

Publication number: CN209948979U
Application number: CN201921253924.7U
Authority: CN
Inventors: 梅达喜
Original assignee: Sichuan Weifangda Electronic Technology Co Ltd
Current assignee: Sichuan Weifangda Electronic Technology Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-01-14
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a LED screen is with power adapter who has waterproof function, including the adapter shell, it has soft backing plate to bond on the outer wall of adapter shell bottom, open at the top of adapter shell has the installing port, all bond on the installing port inner wall all around and have the sealing strip, and the expansion shape of sealing strip is the bar, it has sealed apron to peg graft in the inside of installing port, it has the thermovent that the equidistance distributes to open on the outer wall at sealed apron top, and the inside fixed mounting of thermovent has the dust screen, sealed apron is close to and has the heat dissipation fan through the bolt fastening on the outer wall of thermovent bottom, and it has the mounting hole to open on the outer wall of adapter shell one end. The utility model discloses can play water protection's effect to the PCB board in the inside of adapter shell, when having avoided the adapter to intake on the direct PCB board that enters into of water, can play the purpose of good water conservancy diversion, avoid the inside electronic components of adapter and the phenomenon that the water contact appears burning out.

Description

Power adapter with waterproof function for LED screen

Technical Field

The utility model relates to a LED screen technical field especially relates to a LED screen is with power adapter who has waterproof function.

Background

The LED screen is a novel imaging electronic device made of light emitting diodes arranged in sequence, and the power adapter is a power supply conversion device of the LED screen and generally comprises a shell, a transformer, an inductor, a capacitor, a control IC, a PCB and other components. The existing power adapter still has some defects when in use.

Present power adapter is in structural design, often designs into the mode that utilizes board and bolt concatenation, and this kind of mode is convenient for people to the maintenance of the equipment of power adapter and later stage, but its water-proof effects is not good, in case power adapter meets water, then can make its inside electronic components phenomenon that burns out appear, lets power adapter work that can not be normal, if structural design becomes the integral type, though can play better waterproof effect, but bring great trouble for power adapter's processing and maintenance. Therefore, it is desirable to design a power adapter for an LED panel with waterproof function to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the power adapter who has waterproof function is used to a LED screen that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a power adapter with a waterproof function for an LED screen comprises an adapter shell, wherein a soft base plate is bonded on the outer wall of the bottom of the adapter shell, a mounting opening is formed in the top of the adapter shell, sealing strips are bonded on the inner wall of the periphery of the mounting opening, the expansion shape of the sealing strips is strip-shaped, a sealing cover plate is inserted into the mounting opening, radiating openings distributed at equal intervals are formed in the outer wall of the top of the sealing cover plate, a dustproof net is fixedly mounted inside the radiating openings, a radiating fan is fixedly mounted on the outer wall, close to the bottom of the radiating openings, of the sealing cover plate through bolts, a mounting hole is formed in the outer wall of one end of the adapter shell, a rubber sleeve is inserted into the mounting hole, a low-voltage wire is inserted into the rubber sleeve, the low-voltage wire and the rubber sleeve are in interference fit, and one end, far away from the adapter shell, of the low, the connector is adaptive to an interface of the LED screen, a mounting groove is formed in the outer wall of one end of the adapter shell, a fixing plate is fixedly mounted inside the mounting groove, three first conductive terminals distributed in a triangular mode are arranged on the fixing plate, a connecting core is inserted inside the mounting groove, three jacks distributed in a triangular mode are formed in one end of the connecting core, and the specifications of the jacks are adaptive to the specifications of the first conductive terminals.

Furthermore, threaded holes are formed in four corners of the top of the sealing cover plate, the threaded holes are connected with fixing bolts through threads, raised rib plates are fixedly mounted on the periphery of the inner wall of the mounting hole, the threaded holes are formed in the positions, corresponding to the threaded holes, of the raised rib plates, and the fixing bolts are connected inside the two threaded holes through threads.

Furthermore, the connecting core is connected with a high-voltage wire, one end of the high-voltage wire, which is far away from the connecting core, is connected with a power plug, and one end of the power plug is fixedly provided with three second conductive terminals which are distributed in a triangular shape.

Furthermore, the inside of adapter shell is fixed with leakage switch through the bolt, and two wires have been drawn forth to leakage switch's outside, and two wires are respectively with the inside two of mounting groove first conductive terminal is connected, two first conductive terminal is zero line and live wire respectively.

Furthermore, two second conductive terminals are respectively provided with a change-over switch, the two second conductive terminals are respectively a zero line and a live line, and the two change-over switches and the leakage switch are electrically connected.

Furthermore, a PCB is fixedly installed on the inner wall of the bottom of the adapter shell, an electronic component is fixedly installed on the PCB, a water retaining cover is fixedly installed above the PCB and covers the PCB, and the water retaining cover is fixedly connected with the adapter shell.

Further, all open the louvre that has the equidistance to distribute on the both sides outer wall of manger plate cover, the inside of louvre is provided with the axis of rotation, the welding has the equidistance to be the unidirectional rotation blade that the annular distributes on the outer wall of axis of rotation, the inside intermediate position of louvre is opened there is the circular recess, and axis of rotation and unidirectional rotation blade are located the inside of circular recess.

The utility model has the advantages that:

1. through thermovent and the louvre that sets up, can be effective and timely the heat effluvium that produces the electronic components of adapter shell, guaranteed that electronic components is in normal operating condition, prolonged the life of adapter.

2. Through the manger plate cover that sets up, can play water protection's effect to the PCB board in the inside of adapter shell, on the direct PCB board that enters into of water when having avoided the adapter to intake, can play the purpose of good water conservancy diversion.

3. Through the leakage switch and the change-over switch that set up, can play the effect of in time cutting off external power source from the outside of adapter, avoid the phenomenon that electronic components inside the adapter appears burning out with the water contact.

Drawings

Fig. 1 is a schematic structural diagram of a power adapter with a waterproof function for an LED screen according to the present invention;

fig. 2 is a schematic diagram of a connection structure of a leakage switch circuit of a power adapter with a waterproof function for an LED screen according to the present invention;

fig. 3 is a schematic structural view of a PCB and a water blocking cover of a power adapter with a waterproof function for an LED screen according to the present invention;

fig. 4 is the utility model provides a heat dissipation hole structure schematic diagram of power adapter with waterproof function is shielded to LED.

In the figure: the power supply comprises an adapter shell 1, a soft cushion plate 2, a mounting port 3, a sealing strip 4, a sealing cover plate 5, a heat dissipation port 6, a fixing bolt 7, a rubber sleeve 8, a low-voltage lead 9, a connector 10, a mounting groove 11, a first conductive terminal 12, a connecting core 13, a power plug 14, a second conductive terminal 15, a leakage switch 16, a PCB 17, a water retaining cover 18, a heat dissipation hole 19, a rotating shaft 20, a unidirectional rotating blade 21 and a heat dissipation fan 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, a power adapter with a waterproof function for an LED screen includes an adapter housing 1, the adapter housing 1 is made of an insulating plastic material, a soft pad 2 is bonded to an outer wall of a bottom of the adapter housing 1, the adapter housing 1 is convenient to place and can protect the adapter, a mounting opening 3 is formed in a top of the adapter housing 1, sealing strips 4 are bonded to inner walls around the mounting opening 3, the sealing strips 4 are in a strip shape in an expanded shape, a sealing cover plate 5 is inserted into the mounting opening 3, the sealing cover plate 5 is taken out from the mounting opening 3, an operator can mount, maintain and replace electronic components inside the adapter housing 1, heat dissipation openings 6 are formed in an outer wall of the top of the sealing cover plate 5, a dust screen is fixedly mounted inside the heat dissipation openings 6, and a good heat dissipation effect can be achieved, the dustproof function can be achieved, a heat dissipation fan 22 is fixed on the outer wall of the sealing cover plate 5 close to the bottom of the heat dissipation port 6 through bolts, a large air draft amount is generated, and the heat dissipation efficiency is accelerated, a mounting hole is formed in the outer wall of one end of the adapter shell 1, a rubber sleeve 8 is inserted in the mounting hole, a low-voltage lead 9 is inserted in the rubber sleeve 8, the low-voltage lead 9 and the rubber sleeve 8 are in interference fit, the rubber sleeve 8 can prevent water from entering the adapter shell 1, one end of the low-voltage lead 9 far away from the adapter shell 1 is connected with a connector 10, the connector 10 is matched with an interface of an LED screen, a mounting groove 11 is formed in the outer wall of one end of the adapter shell 1, a fixing plate is fixedly mounted in the mounting groove 11, three first conductive terminals 12 which are distributed in a triangular shape are arranged on the fixing plate, and the fixing plate and the, can strengthen adapter shell 1's seal, the inside grafting of mounting groove 11 has connecting core 13, and the one end of connecting core 13 is opened has three jacks that are triangular distribution, and the specification of jack and the specification looks adaptation of first conductive terminal 12, is convenient for be connected between power cord and the adapter through connecting core 13.

Further, threaded holes are formed in four corners of the top of the sealing cover plate 5, the internal threads of the threaded holes are connected with fixing bolts 7, protruding rib plates are fixedly mounted on the periphery of the inner wall of the mounting hole 3, the threaded holes are formed in the positions, corresponding to the threaded holes, of the protruding rib plates, the fixing bolts 7 are connected in the two threaded holes in a threaded mode, the fixing bolts 7 are disassembled by an operator, the sealing cover plate 5 can be taken out from the inside of the mounting hole 3, and the operation is simple and rapid.

Furthermore, a high-voltage wire is connected to the connecting core 13, one end of the high-voltage wire, which is far away from the connecting core 13, is connected to a power plug 14, three second conductive terminals 15 which are distributed in a triangular shape are fixedly mounted at one end of the power plug 14, and the high-voltage wire and the adapter are conveniently connected through the connecting core 13.

Further, the inside of adapter shell 1 is fixed with leakage switch 16 through the bolt, and leakage switch 16's outside has been drawn forth two wires, and two wires are connected with two inside first conductive terminal 12 of mounting groove 11 respectively, and two first conductive terminal 12 are zero line and live wire respectively, monitor external high-voltage wire through leakage switch 16, and when the short circuit appeared in zero line and live wire, leakage switch 16 opened immediately.

Furthermore, change-over switches are respectively arranged on the two second conductive terminals 15, the two second conductive terminals 15 are respectively a zero line and a live line, an electric connection is formed between the two change-over switches and the leakage switch 16, the leakage switch 16 after the on-state is used for controlling the change-over switches, and the two second conductive terminals 15 are respectively disconnected by the change-over switches, so that the electronic components inside the adapter shell 1 are well protected.

Further, the inner wall of the bottom of the adapter shell 1 is fixedly provided with a PCB 17, the PCB 17 is fixedly provided with electronic components, the electronic components comprise a transformer, an inductor, a capacitor, a control ID, the PCB 17 and the like, a water retaining cover 18 is fixedly arranged above the PCB 17, the water retaining cover 18 covers the PCB 17, and the water retaining cover 18 is fixedly connected with the adapter shell 1.

Furthermore, the outer walls of the two sides of the water retaining cover 18 are provided with heat dissipation holes 19 distributed equidistantly, a rotating shaft 20 is arranged inside the heat dissipation holes 19, the outer wall of the rotating shaft 20 is welded with unidirectional rotating blades 21 distributed annularly at equal intervals, a circular groove is formed in the middle of the inside of the heat dissipation holes 19, and the rotating shaft 20 and the unidirectional rotating blades 21 are located inside the circular groove.

The working principle is as follows: when the power adapter is used, the external high-voltage wire is monitored through the leakage switch 16, when a short circuit occurs between a zero line and a live line, the leakage switch 16 is immediately opened, the change-over switch 16 after the opening is controlled, the change-over switch is used for respectively disconnecting the two second wire terminals 15, so that electronic components inside the adapter shell 1 are well protected, when water enters the heat dissipation port 6 at the top of the adapter shell 1, the water is blocked by the top of the water retaining cover 18, then the water is guided by the water retaining cover 18, the water flows out from a gap between the water retaining cover 18 and the adapter shell 1, so that a good waterproof effect is achieved on the PCB 17, when the power adapter works, the electronic components on the PCB 17 generate a large amount of heat, at the moment, the heat dissipation fan 22 is started, so that the heat dissipation fan 22 generates a large wind absorption force inside the adapter shell 1, the unidirectional rotation blade 21 located inside the heat dissipation hole 19 rotates around the rotation shaft 20, so that the PCB 17 is effectively cooled, and the unidirectional rotation blade 21 can play a reverse waterproof effect.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a LED screen is with power adapter who has waterproof function, includes adapter shell (1), its characterized in that, it has soft backing plate (2) to bond on the outer wall of adapter shell (1) bottom, open at the top of adapter shell (1) has installing port (3), all bond on the inner wall all around of installing port (3) sealing strip (4), and the expansion shape of sealing strip (4) is the bar, the inside grafting of installing port (3) has sealed apron (5), it has heat dissipation port (6) that the equidistance distributes to open on the outer wall at sealed apron (5) top, and the inside fixed mounting of heat dissipation port (6) has the dust screen, it has heat dissipation fan (22) through the bolt fastening on the outer wall that sealed apron (5) are close to heat dissipation port (6) bottom, it has the mounting hole to open on the outer wall of adapter shell (1) one end, and rubber sleeve (8) are inserted in the mounting hole, low-voltage wire (9) is inserted in the rubber sleeve (8), interference fit is formed between the low-voltage wire (9) and the rubber sleeve (8), one end, far away from adapter shell (1), of the low-voltage wire (9) is connected with connector (10), the connector (10) is matched with an interface of an LED screen, mounting groove (11) is formed in the outer wall of one end of the adapter shell (1), a fixing plate is fixedly mounted in the mounting groove (11), three first conductive terminals (12) which are distributed in a triangular shape are arranged on the fixing plate, a connecting core (13) is inserted in the mounting groove (11), three jacks which are distributed in a triangular shape are formed in one end of the connecting core (13), and the specifications of the jacks are matched with the specifications of the first conductive terminals (12).

2. The power adapter with the waterproof function for the LED screen according to claim 1, wherein threaded holes are formed in four corners of the top of the sealing cover plate (5), fixing bolts (7) are connected to the inner portions of the threaded holes in a threaded manner, protruding rib plates are fixedly mounted on the periphery of the inner wall of the mounting opening (3), threaded holes are formed in positions of the protruding rib plates corresponding to the threaded holes, and the fixing bolts (7) are connected to the inner portions of the two threaded holes in a threaded manner.

3. The power adapter with the waterproof function for the LED screen according to claim 1, wherein a high-voltage wire is connected to the connecting core (13), a power plug (14) is connected to one end of the high-voltage wire, which is far away from the connecting core (13), and three second conductive terminals (15) which are distributed in a triangular shape are fixedly mounted at one end of the power plug (14).

4. The power adapter with the waterproof function for the LED screen according to claim 1, wherein the adapter housing (1) is internally fixed with a leakage switch (16) through a bolt, two wires are LED out of the leakage switch (16), the two wires are respectively connected with the two first conductive terminals (12) in the mounting groove (11), and the two first conductive terminals (12) are respectively a zero line and a live line.

5. The power adapter with waterproof function for the LED screen according to claim 3, wherein two second conductive terminals (15) are respectively provided with a change-over switch, the two second conductive terminals (15) are respectively a zero line and a live line, and an electrical connection is formed between the two change-over switches and the leakage switch (16).

6. The power adapter with the waterproof function for the LED screen is characterized in that a PCB (17) is fixedly installed on the inner wall of the bottom of the adapter shell (1), an electronic component is fixedly installed on the PCB (17), a water retaining cover (18) is fixedly installed above the PCB (17), the water retaining cover (18) covers the PCB (17), and the water retaining cover (18) is fixedly connected with the adapter shell (1).

7. The power adapter with waterproof function for the LED screen according to claim 6, wherein the water blocking cover (18) is provided with heat dissipation holes (19) distributed equidistantly on the outer walls of two sides, a rotation shaft (20) is arranged inside the heat dissipation holes (19), unidirectional rotating blades (21) distributed equidistantly and annularly are welded on the outer wall of the rotation shaft (20), a circular groove is formed in the middle position inside the heat dissipation holes (19), and the rotation shaft (20) and the unidirectional rotating blades (21) are located inside the circular groove.