CN204168111U - A power box for switching power supply - Google Patents

Abstract

The utility model relates to a power supply box for switching power supply, including power supply box main part (1) be equipped with 220V input power line interface (2) in power supply box main part (1) go up and be equipped with low pressure output interface (3) with the position and the shape of 220V input power line interface (2) difference mutually. The utility model discloses a switching power supply's power supply box, separately set up high pressure input interface and low pressure output interface, and adopt different interface shapes, the potential safety hazard is brought in the time of avoiding using to insert the mistake; the upper end cover of the power box adopts a buckle type structure, covers the barrel of the power box, has no external leakage screw hole, and reduces the probability of water inflow inside the power supply; a heat dissipation channel is arranged in the power supply, so that the air circulation in the power supply is enhanced, and the heat of the whole power supply is reduced; the heat dissipation of the key components of the power supply adopts the main aluminum shell to directly dissipate heat, so that the heat dissipation area is increased; the power end cover is made of plastic, and the fan is fixed on the plastic end cover to reduce resonance noise.

Description

A power box for switching power supply

【Technical field】

The utility model relates to a power supply box, in particular to a power supply box used for switching power supplies.

【Background technique】

Switching power supply is a kind of power supply that uses modern power electronic technology to control the time ratio of switching on and off to maintain a stable output voltage. Switching power supply is generally composed of pulse width modulation (PWM) control IC and MOSFET. With the development and innovation of power electronics technology, switching power supply technology is constantly innovating. At present, switching power supply is widely used in almost all electronic devices due to its small size, light weight and high efficiency. It is an indispensable power supply method for the rapid development of today's electronic information industry, and the power box related to the power supply is also important. In the traditional power box, the 220V high-voltage input interface and the low-voltage output interface for supplying LED lights are set on a terminal block. The left side of the terminal block is high voltage, and the right side is low voltage. The input interface and output interface are not easy to distinguish, so in actual use, it is easy to Misplugging the high and low voltage ports is not only inconvenient to use, but may also bring potential safety hazards;

If the power supply is used outdoors, the inside of the power supply and the connecting screws are easily soaked by rainwater, which also poses a safety hazard;

The internal design of the traditional power box lacks fan heat channels, or the design of the heat dissipation channels is unreasonable, resulting in internal high temperature and easy fire.

The utility model is exactly the improvement that makes under the situation of above background.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a power supply box with separated high and low voltage interfaces, good heat dissipation performance and high safety performance.

In order to solve the above-mentioned technical problems, a power supply box for switching power supply of the utility model adopts the following technical solutions:

A power supply box for switching power supply, characterized in that it includes a power supply box main body 1, on which a 220V input power line interface 2 is provided, on the power supply box main body 1 and connected to a 220V input power supply The position and shape of the line interface 2 are different from the low-voltage output interface 3 .

A power box for switching power supply as described above is characterized in that: the main body of the power box 1 includes an inner mounting plate 11 for installing power supply components, and a tube made of aluminum is surrounded by the inner mounting plate 11 body 12, an upper end cover 13 capable of covering the cylinder 12 is provided at the upper end of the cylinder 12, and a lower end cover 14 is provided at the lower end of the cylinder 12.

A power supply box for switching power supply as described above is characterized in that: the cylinder body 12 and the upper end cover 13 adopt a snap-fit structure, and the upper end wall of the cylinder body 12 is provided with a clamping hole 121, and the upper end The inner surface of the cover 13 is provided with a buckle 131 that fits into the locking hole 121 .

A power supply box for switching power supply as described above is characterized in that: the lower end cover 14 is provided with a fan area 141 and a heat dissipation area 142, the fan area 141 is fixed with a fan 4, and the heat dissipation area 142 There are heat dissipation holes on the top, and a partition plate 111 for dividing the inside of the power supply box into left and right chambers is provided on the internal mounting plate 11 , and heat dissipation channels 112 are formed in the left and right chambers and the passage between the left and right chambers.

The above-mentioned power box for switching power supply is characterized in that: the lower end cover 14 is a plastic bracket capable of reducing fan resonance noise.

The above-mentioned power box for switching power supply is characterized in that: the input power line interface 2 and the low-voltage output interface 3 are both arranged on the lower end cover 14 .

The above-mentioned power supply box for switching power supply is characterized in that: the upper end cover 13 is provided with a hanging hole 132 which is convenient for wall hanging.

The above-mentioned power box for switching power supply is characterized in that: the input power line interface 2 is a circular interface, and the low-voltage output interface 3 is an elongated terminal interface.

The beneficial effects of the utility model are: the power supply box of the switching power supply of the utility model sets the high-voltage input interface and the low-voltage output interface separately, and adopts different interface shapes to avoid safety hazards caused by wrong insertion during use; the upper end cover of the power supply box The buckle-type structure is adopted to cover the cylinder of the power supply box, and there is no leaking screw hole, which reduces the chance of water entering the power supply; the inside of the power supply is equipped with a cooling channel to enhance the internal air circulation and reduce the overall heat of the power supply; the key components of the power supply dissipate heat The aluminum shell of the main body is used to dissipate heat directly, which increases the heat dissipation area; the power supply end cover is made of plastic, and the fan is fixed on the plastic end cover to reduce resonance noise; the upper end cover of the power supply is made of plastic wall-mounted type, and there are hanging holes on it, which is easy to install fixed.

【Description of drawings】

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a perspective view of the utility model from another angle.

Fig. 3 is a front view of the lower end cover of the present invention.

Figure 4 is an exploded view of the utility model.

【Detailed ways】

The utility model is described in detail below in conjunction with accompanying drawing:

As shown in Figure 1, a power box for switching power supply, including a power box main body 1, 220V input power line interface 2 is provided on the power box main body 1, and 220V input power line interface 2 is provided on the power box main body 1. The position and shape of the input power line interface 2 are differently provided with a low-voltage output interface 3, and the low-voltage output interface 3 can be connected to electrical equipment such as LED lamps.

The main body 1 of the power box includes an internal mounting plate 11 for installing power components, and a cylindrical body 12 made of aluminum is surrounded around the internal mounting plate 11. The aluminum shell is in direct contact with the power components, which is beneficial to For heat dissipation, an upper end cover 13 capable of covering the cylinder 12 is provided at the upper end of the cylinder 12 , and a lower end cover 14 is provided at the lower end of the cylinder 12 .

The input power line interface 2 is a circular interface connected to a 220V power supply, the low-voltage output interface 3 is a strip-shaped terminal interface, the input power line interface 2 and the low-voltage output interface 3 are both set on the lower end cover 14, and the low-voltage The output interface 3 is located below the input power line interface 2, and the positions are spaced apart, so as to avoid plugging into the wrong socket during use.

The cylinder body 12 and the upper end cover 13 are fastened together with a snap-fit structure, and the length and width of the end cover 13 are slightly larger than the size of the cylinder body 12, which can cover the cylinder body 12 from above to prevent rainwater from entering the power supply box. pose a safety hazard. The upper end wall of the cylinder 12 is provided with a clamping hole 121, and the inner surface of the upper end cover 13 is provided with a buckle 131 which is inserted into the clamping hole 121. The clamping holes 121 are respectively provided with two on the front and rear walls of the cylinder 12, and two on the left and right walls. One for each, and the buckles 131 are correspondingly arranged on the upper end cover 13 to ensure smooth and firm buckling.

The lower end cover 14 is divided into two areas, respectively a fan area 141 and a heat dissipation area 142, the fan area 141 is fixed with a fan 4, and the heat dissipation area 142 is provided with heat dissipation holes, and the inner mounting plate 11 is provided with a partition plate 111 that divides the inside of the power supply box into left and right chambers. The bottom of the partition plate 111 is close to the lower end cover 14, and there is a gap between the upper end and the upper end cover 13. The left and right chambers and the partition The gap between the plate 111 and the upper end cover 13 forms a heat dissipation channel 112 , and when the fan 4 is in operation, the wind will take out the heat in the power supply box through the heat dissipation channel 112 .

The lower end cover 14 is made of plastic, and the fan 4 is fixed thereon, which can reduce the resonance noise generated when the fan 4 is in operation.

The upper end cover 13 is provided with a hanging hole 132 for convenient wall hanging. The utility model is provided with two hanging holes to ensure stable suspension. The upper end cover 13 is made of plastic, which can also avoid rainwater soaking and increase the service life.

Claims (8)

1. A power supply box for switching power supply, characterized in that: it comprises a power supply box main body (1), and a 220V input power line interface (2) is provided on the power supply box main body (1). The main body (1) is provided with a low-voltage output interface (3) which is different from the position and shape of the 220V input power line interface (2). 2. A power box for switching power supply according to claim 1, characterized in that: said power box main body (1) includes an internal mounting plate (11) for installing power supply components, and the internal mounting plate ( 11) is surrounded by a cylindrical body (12) made of aluminum, and the upper end of the cylindrical body (12) is provided with an upper end cover (13) that can cover the cylindrical body (12). ) is provided with a lower end cover (14) at the lower end. 3. A power supply box for switching power supply according to claim 2, characterized in that: the cylinder body (12) and the upper end cover (13) adopt a snap-fit structure, and the cylinder body (12) ) The upper end wall is provided with a clamping hole (121), and the inner surface of the upper end cover (13) is provided with a buckle (131) which is inserted into the clamping hole (121). 4. A power supply box for switching power supply according to claim 2 or 3, characterized in that: said lower end cover (14) is provided with a fan area (141) and a heat dissipation area (142), said fan A fan (4) is fixed on the area (141), heat dissipation holes are provided on the heat dissipation area (142), and a partition plate ( 111), the left and right cavities and the channels between the left and right cavities are formed with cooling channels (112). 5. A power supply box for switching power supply according to claim 2 or 3, characterized in that: the lower end cover (14) is a plastic bracket capable of reducing fan resonance noise. 6. A power supply box for switching power supply according to claim 2 or 3, characterized in that: the input power line interface (2) and the low-voltage output interface (3) are all arranged on the lower end cover (14) . 7. The power supply box for switching power supply according to claim 2 or 3, characterized in that: the upper end cover (13) is provided with a hanging hole (132) which is convenient for wall hanging. 8. A power supply box for switching power supply according to claim 1, characterized in that: the input power line interface (2) is a circular interface, and the low-voltage output interface (3) is a long strip terminal interface.