CN211127546U

CN211127546U - Waterproof shell of switching power supply

Info

Publication number: CN211127546U
Application number: CN201922346344.9U
Authority: CN
Inventors: 李啟国
Original assignee: Nanjing Geyi Power Supply Technology Co ltd
Current assignee: Nanjing Geyi Power Supply Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-07-28
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a switching power supply waterproof case, the power distribution box comprises a box body, the dampproofing case of interior diapire fixedly connected with of box, bolt fixedly connected with switching power supply is passed through to the upper surface of dampproofing case, switching power supply's upper surface electric connection has the on & off switch, first circular mouth has been seted up to the upper surface of box, the solid fixed cylinder of lateral wall fixedly connected with of first circular mouth, the both ends of solid fixed cylinder are the opening setting, gu fixed cylinder is close to the inside one end fixedly connected with fixed plate of box, gu fixed cylinder keeps away from the inside one end activity nestification of box and has the movable cover. The utility model discloses a sealed connection structure between setting up shell and the switching power supply makes the setting make the shell accomplish sealed waterproof in, can conveniently carry out the switch to the switching power supply of inside again, through dampproof device and the setting of the dismantlement structure that has sealed function, makes it have the function of carrying out the dehumidification and the change of the dry package of being convenient for inside the shell.

Description

Waterproof shell of switching power supply

Technical Field

The utility model relates to a waterproof case field especially relates to a switching power supply waterproof case.

Background

The switching power supply is a power supply which utilizes modern power electronic technology to control the on-off time ratio of a switching tube and maintain stable output voltage, generally comprises a Pulse Width Modulation (PWM) control IC and an MOSFET, and the switching power supply technology is continuously innovated along with the development and innovation of the power electronic technology. The switch power supply shell on the market at present has poor waterproof function, and the phenomenon of switch interface infiltration can appear when raining, causes short circuit and switch power supply internal element to damage easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a waterproof shell of a switching power supply.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a waterproof shell of a switching power supply comprises a box body, wherein a damp-proof box is fixedly connected to the inner bottom wall of the box body, a switching power supply is fixedly connected to the upper surface of the damp-proof box through bolts, an on-off key is electrically connected to the upper surface of the switching power supply, a first circular opening is formed in the upper surface of the box body, a fixed cylinder is fixedly connected to the side wall of the first circular opening, two ends of the fixed cylinder are arranged in an opening mode, a fixed plate is fixedly connected to one end, close to the interior of the box body, of the fixed cylinder, a movable cover is movably nested to one end, far away from the interior of the box body, of the fixed cylinder, the outer side wall of the movable cover is in sliding connection with the inner side wall of the fixed cylinder through a sliding groove in the inner side wall of the fixed cylinder, rubber sheets are fixedly connected to the inner wall of the movable cover, and the top end and the bottom end of the first spring are fixedly connected with the inner top wall of the movable cover and the upper surface of the fixed plate respectively.

As a further description of the above technical solution:

a second round opening is formed in the middle of the fixing plate, and the on-off key penetrates through the second round opening to extend to the inside of the fixing barrel.

As a further description of the above technical solution:

the box is close to one side of dampproofing case and has been seted up the switch cover, the switch cover all sets up flutedly with box both sides inside wall, be provided with L type fixed pin in the recess, the one end of L type fixed pin runs through the switch cover and extends to the outside, and in the recess of L type fixed pin's the other end embedding box, fixedly connected with second spring between the inner wall of recess and the L type fixed pin, the one end fixedly connected with fixed block of box is kept away from to L type fixed pin.

As a further description of the above technical solution:

the fixed block is greater than the opening of the inside recess of box, be provided with sealed the pad between one side that the fixed block is connected and L type fixed pin and the box, the kneck of switch lid and box all is provided with the sealing strip.

As a further description of the above technical solution:

switch power supply's both sides electric connection has the switch power cord, the one end that switch power cord kept away from switch power supply runs through the lateral wall of box and extends to the outside, the rubber circle has been cup jointed to the surface of switch power cord, the lateral wall fixed connection of rubber circle and box.

As a further description of the above technical solution:

the drying bag is placed in the moisture-proof box, a plurality of air holes are formed in the top wall of the moisture-proof box, and the inner side wall of the box body is fixedly connected with a heat dissipation plate.

The utility model discloses following beneficial effect has:

1. through the setting of first spring, rubber, movable cover, press the movable cover and make rubber and spring compression press the on & off switch, open switching power supply, loosen the movable cover, the elasticity of first spring makes movable block and rubber recover, through rubber and fixed plate fixed connection, makes it play a sealed effect, can guarantee the waterproof type of sealed waterproof of shell, can conveniently switch the switching power supply of inside again.

2. Through the setting of dampproofing case, dry package, be convenient for the inside dehumidification of shell, be favorable to protecting internal circuit and switching power supply internal element, through the setting of fixed block, fixed pin, second spring and recess, conveniently stimulate the fixed block, spring compression makes L type dead lever break away from the recess on the box lateral wall, opens the convenience with sealed switch cover and changes dry package.

The utility model discloses a sealed connection structure between setting up shell and the switching power supply makes the setting make the shell accomplish sealed waterproof in, can conveniently carry out the switch to the switching power supply of inside again, through dampproof device and the setting of the dismantlement structure that has sealed function, makes it have the function of carrying out the dehumidification and the change of the dry package of being convenient for inside the shell.

Drawings

Fig. 1 is a schematic view of an overall structure of a waterproof case of a switching power supply according to the present invention;

fig. 2 is a cross-sectional view of a moisture-proof portion of a waterproof case of a switching power supply according to the present invention;

fig. 3 is an enlarged view of a waterproof case a in fig. 1 of the switching power supply according to the present invention;

fig. 4 is an enlarged view of B in fig. 2 of a waterproof case of a switching power supply according to the present invention.

Illustration of the drawings:

1. the device comprises a box body, a moisture-proof box, a switch power supply, a switch key, a first round opening, a fixed cylinder, a rubber sheet, a second round opening, a fixed plate, a movable cover, a first spring, a second spring, a fixed plate, a movable cover, a second spring, a first spring, a second spring, a switch cover, a groove, a fixing pin of 15 and L types, a fixing block, a heat dissipation plate, a rubber ring, a switch power supply line, a drying bag, a ventilation hole and a ventilation hole, wherein the box body comprises 2, the moisture-proof box, 3.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a waterproof shell of a switching power supply comprises a box body 1, wherein a damp-proof box 2 is fixedly connected to the inner bottom wall of the box body 1, the upper surface of the damp-proof box 2 is fixedly connected with the switching power supply 3 through bolts, the upper surface of the switching power supply 3 is electrically connected with a switch key 4, a first round opening 5 is formed in the upper surface of the box body 1, a fixed cylinder 6 is fixedly connected to the side wall of the first round opening 5, two ends of the fixed cylinder 6 are arranged in an opening mode, a fixed plate 9 is fixedly connected to one end, close to the interior of the box body 1, of the fixed cylinder 6, a movable cover 10 is movably nested at one end, far away from the interior of the box body 1, of the fixed cylinder 6, the outer side wall of the movable cover 10 is connected with the inner side wall of the fixed cylinder 6 in a sliding mode through a sliding groove in the inner side wall of the fixed cylinder 6, rubber sheets 7 are fixedly connected to the inner, the top end and the bottom end of the first spring 11 are fixedly connected with the inner top wall of the movable cover 10 and the upper surface of the fixed plate 9 respectively.

The middle position of a fixing plate 9 is provided with a second circular opening 8, a switch key 4 penetrates through the second circular opening 8 and extends into a fixing cylinder 6, the switch key 4 is convenient to open and close through a movable cover 10, one side of a box body 1 close to a moisture-proof box 2 is provided with a switch cover 13, grooves 14 are formed in the switch cover 13 and the two side walls of the box body 1, L-type fixing pins 15 are arranged in the grooves 14, one end of a L-type fixing pin 15 penetrates through the switch cover 13 and extends to the outside, the other end of a L-type fixing pin 15 is embedded into the grooves 14 of the box body 1, a second spring 12 is fixedly connected between the inner wall of each groove 14 and the L-type fixing pin 15, one end of the L-type fixing pin 15, far away from the box body 1, is fixedly connected with a fixing block 16 and seals the opening of the groove 14, the fixing block 16 is larger than the opening of the groove 14 in the box body 1, a heat dissipation plate 16 is connected with the side of the L-type fixing pin 15, a sealing gasket is arranged between the box body 1, sealing strips are arranged at the joints of the switch cover 13 and the box body 1, so as to prevent water from entering from gaps due to water entering the moisture-proof box, two sides of a power line is electrically connected with a power supply wire 19, the switch 3, one end of the switch 19 is electrically connected with a power wire 19, a drying rubber bag, the drying box, the drying.

When the switch power supply 3 needs to be started, the switch key 4 is pressed, the first spring 11 and the rubber sheet 7 are compressed under the action of external force, the inner top wall of the movable cover 10 is made to contact with the switch key 4, the switch power supply 3 is opened by pressing the switch key 4, the movable cover 10 is loosened, the movable cover 10 and the rubber sheet 7 return to the original positions under the action of the elastic force of the first spring 11, the switch power supply 3 can be closed by the same method, and when the drying bag 20 in the moisture-proof box 2 needs to be replaced, the fixing block 16 is pulled towards the direction of the second spring 12, the L type fixing rod is separated from the groove 14 in the side wall of the box body 1, the switch cover 13 is opened, and the drying bag 20 is replaced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a waterproof shell of switching power supply, includes box (1), its characterized in that: the damp-proof box (2) is fixedly connected with the inner bottom wall of the box body (1), the upper surface of the damp-proof box (2) is fixedly connected with a switching power supply (3) through a bolt, the upper surface of the switching power supply (3) is electrically connected with an on-off key (4), a first round opening (5) is formed in the upper surface of the box body (1), a fixed cylinder (6) is fixedly connected with the side wall of the first round opening (5), the two ends of the fixed cylinder (6) are arranged in an opening mode, one end, close to the interior of the box body (1), of the fixed cylinder (6) is fixedly connected with a fixed plate (9), one end, far away from the interior of the box body (1), of the fixed cylinder (6) is movably nested with a movable cover (10), the outer side wall of the movable cover (10) is connected with the inner side wall of the fixed cylinder (6) through a sliding groove in the inner side wall of the fixed, the rubber skin (7) is kept away from the one end of movable cover (10) and is connected with the upper fixed surface of fixed plate (9), first spring (11) of fixedly connected with between movable cover (10) and fixed plate (9), first spring (11) top and bottom are connected with the interior roof of movable cover (10) and the upper fixed surface of fixed plate (9) respectively.

2. The waterproof casing of switching power supply of claim 1, characterized in that: a second round opening (8) is formed in the middle of the fixing plate (9), and the on-off key (4) penetrates through the second round opening (8) and extends to the inside of the fixing barrel (6).

3. The waterproof shell of the switching power supply according to claim 1, wherein a switch cover (13) is arranged on one side of the box body (1) close to the moisture-proof box (2), grooves (14) are formed in the switch cover (13) and the two side walls of the box body (1), L type fixing pins (15) are arranged in the grooves (14), one end of each L type fixing pin (15) penetrates through the switch cover (13) and extends to the outside, the other end of each L type fixing pin (15) is embedded into the corresponding groove (14) of the box body (1), a second spring (12) is fixedly connected between the inner wall of each groove (14) and the L type fixing pin (15), and a fixing block (16) is fixedly connected to one end, far away from the box body (1), of the L type fixing pin (15).

4. The waterproof shell of the switching power supply according to claim 3, wherein the fixing block (16) is larger than an opening of the groove (14) in the box body (1), a sealing gasket is arranged between one side of the fixing block (16) connected with the L type fixing pin (15) and the box body (1), and sealing strips are arranged at the interfaces of the switch cover (13) and the box body (1).

5. The waterproof casing of switching power supply of claim 1, characterized in that: both sides electric connection of switching power supply (3) has switching power supply line (19), the lateral wall that switching power supply (3) was kept away from in switching power supply line (19) runs through box (1) extends to the outside, rubber circle (18) have been cup jointed to the surface of switching power supply line (19), the lateral wall fixed connection of rubber circle (18) and box (1).

6. The waterproof casing of switching power supply of claim 1, characterized in that: the drying bag (20) is placed in the moisture-proof box (2), a plurality of air holes (21) are formed in the top wall of the moisture-proof box (2), and the heat dissipation plate (17) is fixedly connected to the inner side wall of the box body (1).