CN209882306U - Switch power supply shell - Google Patents

Abstract

The application relates to a switching power supply shell, including: the lower shell comprises a bottom plate for mounting the circuit board and side plates positioned on two sides of the bottom plate; the upper shell comprises a main body plate covered on the lower shell, two side bending parts, a front end bending part and a rear end bending part; the four corners of the bottom plate are provided with convex blocks, the convex blocks are provided with L-shaped limiting blocks, and the limiting blocks are used for clamping the four corners of the circuit board; the two side bending parts are formed by bending two side edges of the main body plate and are attached to the side plates, and the two side bending parts and the side plates are provided with matched threaded holes and can be fixed through screws; the front end bending part is formed by bending the edge of the front end of the main body plate and is used for abutting against the wiring part of the circuit board; the rear end kink is formed by bending the rear end edge of the main body plate, and the rear end kink is used for abutting against the rear end of the circuit board. The utility model has the advantages that: the shell does not need to be fixed through screws when the printed circuit board is installed, and is convenient to assemble and firm in structure.

Description

Switch power supply shell

Technical Field

The application belongs to the technical field of switching power supplies, and particularly relates to a switching power supply shell.

Background

Generally, a switching power supply includes a rectangular case made of aluminum alloy or steel and a printed circuit board fixed in the case, and a heat dissipating device such as a heat dissipating fin or a fan is further provided between the case and the printed circuit board, and the switching power supply can be fixed to an electronic device by a fastening member such as a screw and a screw hole provided in the case of the switching power supply. The existing switching power supply generally adopts a base and a cover body which are both in an L shape and are connected together up and down to form a casing which is generally in a cuboid shell shape, the casing needs to punch a printed circuit board firstly when the printed circuit board is installed, then the printed circuit board is screwed down and fixed on the casing after the printed circuit board is penetrated through a screw, and the installation is troublesome.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the switch power supply shell solves the problem that a circuit board is troublesome to mount in the switch power supply shell in the prior art, and therefore the switch power supply shell is provided.

The utility model provides a technical scheme that its technical problem adopted is: a switching power supply enclosure comprising:

the lower shell comprises a bottom plate for mounting the circuit board and side plates positioned on two sides of the bottom plate;

the upper shell comprises a main body plate covered on the lower shell, two side bending parts, a front end bending part and a rear end bending part;

the four corners of the bottom plate are provided with convex blocks, each convex block is provided with an L-shaped limiting block, and the limiting blocks are used for clamping the four corners of the circuit board;

the two side bending parts are formed by bending two side edges of the main body plate and are attached to the side plates, and the two side bending parts and the side plates are provided with matched threaded holes and can be fixed through screws; the front end bending part is formed by bending the edge of the front end of the main body plate and is used for abutting against a wiring part of a circuit board; the rear end bending part is formed by bending the edge of the rear end of the main body plate, and the rear end bending part is used for abutting against the rear end of the circuit board.

Preferably, the utility model discloses a switching power supply shell, the middle part of bottom plate still is equipped with the supporting shoe that is used for supporting the circuit board.

Preferably, the utility model discloses a switching power supply shell, the rear end kink includes the first kink of rear end and rear end second kink, the first kink of rear end by the rear end edge bending type of main part plate forms, the rear end second kink by the edge bending type of the first kink of rear end forms, the lower surface of rear end second kink supports the upper surface that leans on the circuit board.

Preferably, the utility model discloses a switching power supply shell, be equipped with ventilative grid on the lower casing.

Preferably, the utility model discloses a switching power supply shell, be equipped with the bleeder vent on the last casing.

Preferably, the utility model discloses a switching power supply shell, be equipped with the clamp plate on the bottom plate, the next door of lug is located to the clamp plate, the clamp plate is L shape, divide into the perpendicular to the support section of bottom plate with be on a parallel with the compact heap of bottom plate, the compact heap lid is in the lug upper surface, the through-hole has on the compact heap, can be in through screw locking on the bottom plate.

Preferably, the utility model discloses a switching power supply shell, the height more than or equal to of support section the height of lug.

Preferably, the utility model discloses a switching power supply shell, the axis of the through-hole on the compact heap does not pass the lug.

The utility model has the advantages that: the shell does not need to be fixed through screws when the printed circuit board is installed, and is convenient to assemble and firm in structure.

Drawings

The technical solution of the present application is further explained below with reference to the drawings and the embodiments.

Fig. 1 is a schematic structural diagram of a switching power supply housing according to an embodiment of the present application;

FIG. 2 is a schematic view of a lower housing construction of an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an upper housing of an embodiment of the present application;

fig. 4 is a schematic view of an assembly structure of a switching power supply housing according to an embodiment of the present application;

FIG. 5 is a schematic view of a platen mounting structure according to an embodiment of the present application.

The reference numbers in the figures are:

1 lower casing

2 upper shell

3 pressing plate

4 circuit board

11 bottom plate

12 side plate

21 main body plate

22 two side bending parts

23 front end bending part

24 rear end bend

31 support section

32 compact block

111 bump

112 limited block

113 supporting block

241 first bending part

242 a second bending portion.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 application can be understood by those of ordinary skill in the art through specific situations.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. Examples

The present embodiment provides a switching power supply casing, as shown in fig. 1 to 4, including:

a lower case 1 including a bottom plate 11 for mounting a circuit board and side plates 12 positioned at both sides of the bottom plate 11;

an upper shell 2, which comprises a main body plate 21 covered on the lower shell 1, two side bending parts 22, a front end bending part 23 and a rear end bending part 24;

the four corners of the bottom plate 11 are provided with convex blocks 111, each convex block 111 is provided with an L-shaped limiting block 112, and the limiting blocks 112 are used for clamping the four corners of the circuit board;

the two-side bent parts 22 are formed by bending two side edges of the main body plate 21 and are attached to the side plates 12, and the two-side bent parts 22 and the side plates 12 are provided with matched threaded holes and can be fixed through screws; the front end bent portion 23 is formed by bending the front end edge of the main body plate 21, and the front end bent portion 23 is used for abutting against the wiring portion of the circuit board 4 (as shown in fig. 4, the frame of the wiring portion is pressed by the bent portion 23); the rear end bent portion 24 is formed by bending the rear end edge of the main body panel 21, and the rear end bent portion 24 is used for abutting against the rear end of the circuit board 4.

Preferably, as shown in fig. 2, in the switching power supply housing of this embodiment, a supporting block 113 for supporting the circuit board is further provided in the middle of the bottom plate 11. As shown in fig. 4, the supporting block 113 abuts against the middle portion of the circuit board 4, and can stabilize the circuit board 4.

Preferably, as shown in fig. 3 and 4, in the switching power supply housing of this embodiment, the rear end bending portion 24 includes a rear end first bending portion 241 and a rear end second bending portion 242, the rear end first bending portion 241 is formed by bending the rear end edge of the main body plate 21, the rear end second bending portion 242 is formed by bending the edge of the rear end first bending portion 241, and the lower surface of the rear end second bending portion 242 abuts against the upper surface of the circuit board. The second bending part 242 is tightly attached to the surface of the circuit board 4, the fixing is more stable, and the first bending part 241 is flush with the tail end of the bottom plate 11, so that the appearance is more attractive.

Preferably, as shown in fig. 2, in the switching power supply housing of the present embodiment, the lower case 1 is provided with an air permeable grid.

Preferably, as shown in fig. 3, in the switching power supply housing of the present embodiment, the upper case 2 is provided with an air hole.

Preferably, as shown in fig. 5, in the switching power supply housing of this embodiment, a pressing plate 3 is disposed on the bottom plate 11, the pressing plate 3 is disposed beside the protrusion 111, the pressing plate 3 is L-shaped and is divided into a supporting section 31 perpendicular to the bottom plate 11 and a pressing block 32 parallel to the bottom plate 11, the pressing block 32 covers the upper surface of the protrusion 111, and the pressing block 32 has a through hole and can be locked on the bottom plate 11 by a screw. The press plate 3 is capable of pressing against the circuit board 4 without screws having to pass through the circuit board.

Preferably, in the switching power supply housing of this embodiment, the height of the supporting section 31 is greater than or equal to the height of the protrusion 111. So that the pressure of the holding-down block 32 can be applied to the circuit board 4 when the screw is locked.

Preferably, in the switching power supply housing of the embodiment, the axis of the through hole in the pressing block 32 does not pass through the projection 111.

In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.

Claims (8)

1. A switching power supply enclosure, comprising:

the lower shell (1) comprises a bottom plate (11) for mounting a circuit board and side plates (12) positioned on two sides of the bottom plate (11);

an upper shell (2) which comprises a main body plate (21) covered on the lower shell (1), two side bending parts (22), a front end bending part (23) and a rear end bending part (24);

the four corners of the bottom plate (11) are provided with convex blocks (111), each convex block (111) is provided with an L-shaped limiting block (112), and the limiting blocks (112) are used for clamping the four corners of the circuit board;

the two-side bent parts (22) are formed by bending two side edges of the main body plate (21) and are attached to the side plates (12), and the two-side bent parts (22) and the side plates (12) are provided with matched threaded holes and can be fixed through screws; the front end bent part (23) is formed by bending the edge of the front end of the main body plate (21), and the front end bent part (23) is used for abutting against a wiring part of a circuit board; the rear end bent part (24) is formed by bending the rear end edge of the main body plate (21), and the rear end bent part (24) is used for abutting against the rear end of the circuit board.

2. A switching power supply casing according to claim 1, characterized in that the middle of the bottom plate (11) is further provided with a support block (113) for supporting a circuit board.

3. The switching power supply housing according to claim 2, wherein the rear end bending portion (24) includes a rear end first bending portion (241) and a rear end second bending portion (242), the rear end first bending portion (241) is formed by bending a rear end edge of the main body plate (21), the rear end second bending portion (242) is formed by bending an edge of the rear end first bending portion (241), and a lower surface of the rear end second bending portion (242) abuts against an upper surface of the circuit board.

4. A switching power supply casing according to any of claims 1-3, characterized in that the lower casing (1) is provided with an air permeable grid.

5. A switching power supply casing according to any one of claims 1-3 characterized in that the upper casing (2) is provided with air holes.

6. A switching power supply casing according to any one of claims 1-3, characterized in that a pressure plate (3) is provided on the bottom plate (11), the pressure plate (3) is provided beside the protrusion (111), the pressure plate (3) is L-shaped and is divided into a support section (31) perpendicular to the bottom plate (11) and a pressing block (32) parallel to the bottom plate (11), the pressing block (32) covers the upper surface of the protrusion (111), and the pressing block (32) is provided with a through hole capable of being locked on the bottom plate (11) by a screw.

7. A switching power supply housing according to claim 6, characterized in that the height of the support section (31) is equal to or greater than the height of the projection (111).

8. A switching power supply casing according to claim 6, characterized in that the axis of the through hole in the hold-down block (32) does not pass through the projection (111).