CN104279436B - Lamps and lanterns - Google Patents

Abstract

The invention discloses a lamp, which comprises a cooling box, a plurality of MOS tubes, a circuit board and a plurality of fixing frames. The MOS tube is installed on the circuit board, and the fixing frame is installed on the circuit board. The cooling box is provided with a storage space, a pair of positioning grooves and a plurality of first fixing holes. The MOS tube, the circuit board and the fixing frame are stored in the storage space. slot to position the circuit board in the thermal box. The first fixing hole runs through a pair of opposite side walls of the cooling box, and each fixing frame is provided with a second fixing hole, and a plurality of first fixing pieces pass through the first fixing hole and are fixed in the second fixing hole, so that the fixing frame fixed on the cooling box. The lamp provided by the present invention uses the first fixing member to fix the fixing frame to the heat dissipation box from outside to inside, so as to fix the MOS tube to the heat dissipation box, so that the installation and disassembly of the MOS tube are relatively convenient, which solves the problem of the screw in the prior art. It is difficult to install and disassemble the MOS tube due to the installation from inside to outside.

Description

lamps

technical field

The invention relates to the field of lighting lamps, in particular to a lamp.

Background technique

A lamp generally includes a circuit board installed with a MOS tube (Metal Oxide Semiconductor Field Effect Transistor, MOSFET) and a heat dissipation box, and the circuit board is installed in the heat dissipation box. However, in the existing lamps, the MOS tube is fixed to the heat dissipation box from the inside to the outside by screws, which makes installation and disassembly difficult.

Contents of the invention

The purpose of the present invention is to provide a lamp which is easy to install.

In order to solve the above technical problems, the present invention provides a lamp, which includes a heat dissipation box, a plurality of MOS tubes (Metal Oxide Semiconductor Field Effect Transistor, MOSFET), a circuit board and a plurality of fixing frames, and the MOS tubes are installed on the The circuit board, the fixing frame is installed on the circuit board and is close to the MOS tube to protect the MOS tube, the heat dissipation box is provided with a receiving space, a pair of positioning grooves and a plurality of first fixing holes, the The MOS tube, the circuit board and the fixing frame are accommodated in the accommodation space, the positioning grooves are arranged on a pair of inner side walls of the accommodation space, and the pair of opposite side walls of the circuit board are accommodated in the accommodation space. In the positioning groove, to position the circuit board in the heat dissipation box, the first fixing hole runs through a pair of opposite side walls of the heat dissipation box, and each of the fixing brackets is provided with the first fixing hole. The hole corresponds to the second fixing hole, and a plurality of first fixing pieces pass through the first fixing hole and are fixed in the second fixing hole, so as to fix the fixing frame to the heat dissipation box.

Wherein, the first fixing hole is a through hole, and the second fixing hole is a threaded hole.

Wherein, the circuit board is provided with multiple pairs of positioning holes, and each of the fixing frames includes a pair of positioning feet, and the positioning feet are inserted into the positioning holes to position the fixing frame on the circuit board.

Wherein, the cross-sectional shape of each of the positioning feet is an I-shape, so as to prevent the fixing frame from accidentally detaching from the circuit board.

Wherein, each of the fixing brackets includes a fixing piece, the fixing piece is bent from the top of the fixing bracket to the MOS tube, and the fixing piece 44 buckles the top of the MOS tube to protect the MOS tube. Tube.

Wherein, the heat dissipation box further includes a plurality of heat dissipation ribs, the heat dissipation ribs protrude from the outer surface of the side wall of the heat dissipation box, and the first fixing hole penetrates the heat dissipation ribs.

Wherein, the first fixing hole is a counterbore and includes a first hole and a second hole, the first hole communicates with the second hole, and the diameter of the first hole is larger than the diameter of the second hole , the head of the first fixing member is accommodated in the first hole.

Wherein, the lamp further includes a pair of holding plates, and the holding plates are installed at both ends of the heat dissipation box for sealing the circuit board and the MOS tube.

Wherein, each of the holding plates is provided with a rectangular receiving groove, and two ends of the circuit board are provided with terminals, and the terminals protrude from the receiving groove.

Wherein, the heat dissipation box is provided with a plurality of first holding holes, the first holding holes are arranged at the corners of the receiving space, and each of the holding plates is provided with a plurality of holes corresponding to the first holding holes. A second fixing hole through which a plurality of second fixing members are fixed in the first fixing hole, so as to fix the fixing plate to the end of the heat dissipation box.

The lamp provided by the present invention uses the first fixing member to fix the fixing frame to the heat dissipation box from outside to inside, so as to fix the MOS tube to the heat dissipation box, so that the installation and disassembly of the MOS tube are relatively convenient, which solves the problem of the screw in the prior art. It is difficult to install and disassemble the MOS tube due to the inside-out installation.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings used in the implementation will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. Technical personnel can also obtain other drawings based on these drawings without paying creative labor.

Fig. 1 is an exploded schematic diagram of a lamp provided by an embodiment of the present invention;

Fig. 2 is a partially exploded schematic diagram of the lamp shown in Fig. 1;

Fig. 3 is a schematic diagram of the cooling box shown in Fig. 1;

Fig. 4 is a sectional view along line IV-IV in Fig. 3;

Fig. 5 is a schematic diagram of the fixed mount shown in Fig. 1;

Fig. 6 is a sectional view along broken line VI-VI in Fig. 5;

Fig. 7 is a schematic diagram of the assembly of the lamp shown in Fig. 1;

FIG. 8 is a schematic cross-sectional view of FIG. 7 .

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

Please refer to FIG. 1 to FIG. 4 , which are a lamp 100 provided by the present invention. The lamp 100 includes a cooling box 10 , a plurality of MOS tubes 20 (Metal Oxide Semiconductor Field Effect Transistor, MOSFET), a circuit board 30 and a plurality of fixing frames 40 . The MOS transistor 20 is installed on the circuit board 30 , and the fixing frame 40 is installed on the circuit board 30 and closely attached to the MOS transistor 20 to protect the MOS transistor 20 . The cooling box 10 is provided with a receiving space 12, a pair of positioning grooves 14 and a plurality of first fixing holes 16, the MOS tube 20, the circuit board 30 and the fixing frame 40 are accommodated in the receiving space 12, and the The positioning groove 14 is arranged on a pair of opposite inner walls of the receiving space 12, and a pair of opposite side walls of the circuit board 30 is accommodated in the positioning groove 14, so as to position the circuit board 30 on the The heat dissipation box 10, the first fixing hole 16 runs through a pair of opposite side walls of the heat dissipation box 10, and each of the fixing brackets 40 is provided with a second fixing hole corresponding to the first fixing hole 16 46 , a plurality of first fixing members 90 pass through the first fixing holes 16 and are fixed in the second fixing holes 46 , so as to fix the fixing frame 40 to the heat dissipation box 10 .

In this embodiment, the heat dissipation box 10 is formed by extrusion molding. The fixing frame 40 is formed by stamping and forming of galvanized sheet.

In the lamp 100 provided by the present invention, the fixing frame 40 is fixed to the heat dissipation box 10 from the outside to the inside by the first fixing member 90 to fix the MOS tube 20 to the heat dissipation box 10 . Because this fixing method is convenient for the staff to install and remove the first fixing member 90, that is, the installation and removal of the MOS tube 20 is relatively convenient, and it solves the problem that the screw is installed from the inside to the outside in the prior art and causes the installation and removal of the MOS tube to be difficult. difficult question.

As shown in FIG. 3 and FIG. 4 , in this embodiment, the first fixing hole 16 is a through hole, the second fixing hole 46 is a threaded hole, and the first fixing member 90 is a screw. During installation, the first fixing member 90 passes through the first fixing hole 16 and is locked in the threaded hole, so as to fix the fixing frame 40 to the heat dissipation box 10 .

As a further improvement of the present invention, the heat dissipation box 10 also includes a plurality of heat dissipation ribs 18 protruding from the outer surface of the side wall of the heat dissipation box 10, and the first fixing hole 16 runs through the Radiating ribs 18.

Furthermore, the first fixing hole 16 is a counterbore and includes a first hole 162 and a second hole 164, the first hole 162 communicates with the second hole 164, and the diameter of the first hole 162 is larger than The diameter of the second hole 164 is such that the head of the first fixing member 90 is accommodated in the first hole 162 (please refer to FIG. 8 ).

As shown in FIG. 1 , each MOS transistor 20 is provided with multiple pins 21 , and the circuit board 30 is provided with multiple groups of sockets 31 corresponding to the pins 21 . During installation, the pins 21 are inserted into the jacks 31 to install the MOS tube 20 on the circuit board 30 .

Please refer to FIG. 5 and FIG. 6 at the same time. As a further improvement of the present invention, the circuit board 30 is provided with multiple pairs of positioning holes 32, and each of the fixing brackets 40 includes a pair of positioning feet 42, and the positioning feet 42 are inserted into the positioning holes. hole 32 to position the fixing frame 40 on the circuit board 30 .

In this embodiment, the cross-sectional shape of each positioning foot 42 is an I-shape, so as to prevent the fixing bracket 40 from accidentally detaching from the circuit board 30 . During installation, each positioning foot 42 is pressed through the positioning hole 32 to install each fixing frame 40 on the circuit board 30 . When in use, because the cross-sectional shape of each positioning leg 42 is I-shaped, the positioning leg 42 is not easy to disengage from the positioning hole 32 during use, thereby preventing the fixing frame 40 from accidentally detaching from the circuit board 30 .

As a further improvement of the present invention, each fixing frame 40 further includes a fixing piece 44 bent from the top of the fixing frame 40 to the MOS tube 20 . After installation, each fixing piece 44 buckles the top of the MOS tube 20 to protect the MOS tube 20 .

Because the fixing piece 44 of the fixing frame 40 buckles the MOS tube 20, the MOS tube 20 is not easy to shake and break away from the circuit board 30 during transportation and use, so that the MOS tube 20 can be firmly installed on the circuit board 30, thereby improving the brightness of the lamp. 100 quality.

As shown in Fig. 1 and Fig. 2, as a further improvement of the present invention, the lamp 100 further includes a pair of holding plates 50, the holding plates 50 are installed at both ends of the heat dissipation box 10 for closing the The circuit board 30 and the MOS transistor 20 .

In this embodiment, the holding plate 50 is formed by stamping an aluminum plate. The cross-sectional shape of each holding plate 50 is substantially L-shaped.

Furthermore, each of the holding plates 50 is provided with a rectangular receiving groove 52 , terminals 38 are provided at both ends of the circuit board 30 , and the terminals 38 protrude from the receiving groove 52 .

In this embodiment, the heat dissipation box 10 is provided with a plurality of first holding holes 11, the first holding holes 11 are arranged at the corners of the receiving space 12, and each of the holding plates 50 is provided with a plurality of The second holding hole 51 corresponding to the first holding hole 11, a plurality of second fixing members 80 pass through the second holding hole 51 and are fixed in the first holding hole 11, so that the holding plate 50 It is fixed on the end of the heat dissipation box 10 .

Please refer to FIG. 1 to FIG. 8 together. During installation, the pin 21 of the MOS tube 20 is inserted into the socket 31 of the circuit board 30 to install the MOS tube 20 on the circuit board 30; the positioning pin 42 of the fixing frame 40 Insert into the positioning hole 32 of the circuit board 30 to position the fixing frame 40 on the circuit board 30; a pair of opposite side walls of the circuit board 30 are accommodated in the positioning groove 14 of the heat dissipation box 10 , to position the circuit board 30 in the heat dissipation box 10; a plurality of first fixing members 90 pass through the first fixing holes 16 of the heat dissipation box 10 and are fixed in the second fixing holes 46 of the fixing frame 40, so as to The fixing frame 40 is fixed to the heat dissipation box 10, so that the circuit board 30 is fixed to the heat dissipation box 10; a plurality of second fixing members 80 pass through the second holding holes 51 of the holding plate 50 and are fixed to the heat dissipation box 10 In the first holding hole 11, the holding plate 50 is fixed to the end of the heat dissipation box 10, so that the heat dissipation box 10, MOS tube 20, circuit board 30, fixing frame 40 and holding plate 50 are assembled into a lamp 100.

The above description is a preferred embodiment of the present invention, and it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also considered Be the protection scope of the present invention.

Claims (9)

1. a kind of lamps and lanterns, it is characterised in that the lamps and lanterns include heat dissipation box, multiple metal-oxide-semiconductors (Metal Oxide Semiconductor Field Effect Transistor, MOSFET), circuit board and multiple fixed frames, the metal-oxide-semiconductor peace Loaded on the circuit board, the fixed frame is installed on the circuit board and is close to the metal-oxide-semiconductor, described to protect the metal-oxide-semiconductor Heat dissipation box is equipped with receiving space, a pair of of locating slot and multiple first mounting holes, the metal-oxide-semiconductor, the circuit board and the fixation Frame is contained in receiving space, and the locating slot is arranged at a pair of inside wall of the receiving space, a pair of the circuit board Opposite side wall is contained in the locating slot, the circuit board is positioned at the heat dissipation box, first mounting hole passes through Wear a pair of opposite side wall of the heat dissipation box, first mounting hole is for counterbore and including the first hole and the second hole, and described the One hole is connected with second hole, and the diameter in first hole is more than the diameter in second hole, each described fixed frame Equipped with the second mounting hole corresponding with first mounting hole, multiple first fixing pieces are through first mounting hole and are fixed on In second mounting hole, the head of first fixing piece is contained in first hole, the fixed frame is fixed In the heat dissipation box.

2. lamps and lanterns according to claim 1, it is characterised in that first mounting hole is through hole, second mounting hole For threaded hole.

3. lamps and lanterns according to claim 1, it is characterised in that the circuit board is equipped with multipair location hole, described in each Fixed frame includes a pair of of angle, and the angle is inserted into the location hole, and the fixed frame is positioned the circuit board.

4. lamps and lanterns according to claim 3, it is characterised in that the cross sectional shape of each angle is in work shape, with Prevent the fixed frame from undesirably falling off the circuit board.

5. lamps and lanterns according to claim 3, it is characterised in that each described fixed frame includes fixinig plate, the fixation Piece is bent from the top of the fixed frame to the metal-oxide-semiconductor, the top of metal-oxide-semiconductor described in the fixinig plate clasp, with described in protection Metal-oxide-semiconductor.

6. lamps and lanterns according to claim 1, it is characterised in that the heat dissipation box further includes multiple radiating ribs, the heat dissipation Muscle is protruded from the wall outer surface of the heat dissipation box, and first mounting hole runs through the radiating ribs.

7. lamps and lanterns according to claim 1, it is characterised in that the lamps and lanterns further include a pair of of holding board, the holding board The both ends of the heat dissipation box are installed on, for closing the circuit board and the metal-oxide-semiconductor.

8. lamps and lanterns according to claim 7, it is characterised in that each described holding board is equipped with rectangular container, Both ends on the circuit board are equipped with terminal, and the terminal is protruded from the container.

9. lamps and lanterns according to claim 7, it is characterised in that the heat dissipation box is equipped with multiple first holding holes, and described One holding hole is arranged at the corner of the receiving space, each described holding board is equipped with multiple corresponding with first holding hole The second holding hole, multiple second fixing pieces are fixed in first holding hole through second holding hole, will described in Holding board is fixed on the end of the heat dissipation box.