CN210986649U

CN210986649U - Power supply box structure for preventing high-voltage arc discharge

Info

Publication number: CN210986649U
Application number: CN201921644238.2U
Authority: CN
Inventors: 黄坤龙
Original assignee: Shenzhen Keyingtong Electronic Technology Co ltd
Current assignee: Shenzhen Keyingtong Electronic Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-07-10
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a power supply box structure for preventing high-voltage arc discharge, which comprises a control panel, an upper box body and a lower box body, wherein the upper box body and the upper box body are enclosed to form a cavity for accommodating the control panel; the control panel still is fixed with the switch tube, and the switch tube hugs closely in the inner wall of the first curb plate of box body down, and the pin and the control panel electricity of switch tube are connected simultaneously, and the part that the bottom plate of first curb plate and box body down met outwards bulges to form the clearance of preventing the high pressure and drawing the arc between the pin of switch tube and the first curb plate. The utility model discloses can enlarge the pin of switch tube and the distance of first curb plate, guarantee the heat dissipation of switch tube again, simple structure and stability.

Description

Power supply box structure for preventing high-voltage arc discharge

Technical Field

The utility model relates to an installation device's of control panel technical field especially relates to a prevent power pack structure of high pressure arc discharge.

Background

The power supply box is used as a conventional part in the electric device and comprises a box body, a driving circuit board arranged in the box body and an output wire electrically connected with the driving circuit board, wherein the output wire can be connected with a functional element in the electric device, and the driving circuit board can adjust the received commercial power and output the commercial power to the functional element through the output wire, so that the functional element can normally work; the control panel is generally provided with a switch tube which is provided with a high pressure foot, the high pressure foot is easy to generate electric arc, the power supply box is generally made of metal or alloy materials due to the heat dissipation requirement of the power supply box, therefore, when the voltage of the high pressure foot of the switch tube is overhigh, the electric arc is easy to generate, the switch tube is also a high-heating element, the switch tube and the side plate of the power supply box are generally arranged close to each other, so when the voltage of the high pressure foot of the switch tube is overhigh to generate the electric arc, the side plate is easy to generate the arc discharge due to the material characteristics of the side plate, when the arc discharge is arranged at one high pressure end, the voltage of the high pressure end can be changed, the power supply panel is burnt, peripheral materials can be ignited due to continuous arc discharge at high temperature, and great potential safety hazards exist particularly in some.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides a prevent power pack structure of high pressure arc of drawing can draw the distance of the pin of big switch tube and first curb plate, guarantees the heat dissipation of switch tube again, simple structure and stability.

In order to achieve the purpose, the utility model provides a power supply box structure for preventing high-voltage arc discharge, which comprises a control panel, an upper box body and a lower box body, wherein the upper box body and the upper box body are enclosed to form a cavity for accommodating the control panel; the control panel still is fixed with the switch tube, just the switch tube hug closely in the inner wall of the first curb plate of box body down, simultaneously the pin of switch tube with the control panel electricity is connected, first curb plate with the part that the bottom plate of box body meets is outside protruding down, so that the pin of switch tube with form the clearance of preventing that the high pressure draws the arc between the first curb plate.

The first side plate is provided with a plurality of first heat dissipation holes, and the first heat dissipation holes are polygonal holes.

The switch tube fixing device is characterized by further comprising a pressing plate, the pressing plate is made of aluminum magnesium alloy, screw holes are formed in the pressing plate, one end of the pressing plate is abutted to the first side plate, the other end of the pressing plate is abutted to the switch tube, and the switch tube is fixed to the first side plate through screws.

The lower box body further comprises a second side plate adjacent to the first side plate, one side of the upper box body is connected with the second side plate, the other side of the upper box body extends in the vertical direction and then is connected with the bottom plate, and the upper box body and the lower box body enclose a cavity with one open end.

Wherein, one side of the upper box body is provided with a back hook part, and the other side is provided with a mounting hole; the second side plate is provided with a buckling part matched with the back hook part, the bottom plate is provided with a through hole corresponding to the mounting hole, the first side plate and the second side plate are discontinuously arranged, and the upper box body and the lower box body are detachably connected.

The inner wall of the second side plate is provided with a plurality of clamping grooves, the clamping grooves are flush with the protruding portions, and one side of the control plate is clamped on the clamping grooves and is pasted on the protruding portions.

The upper box body is made of an aluminum oxide material, a plurality of second heat dissipation holes are formed in the upper box body, and the second heat dissipation holes are arranged in an array mode to form heat dissipation channels.

The second radiating holes are in a regular hexagonal shape, and a honeycomb-shaped second radiating channel is formed after the second radiating holes are arrayed.

Wherein, the height of first curb plate and second curb plate is 30-35 mm.

The utility model has the advantages that: compared with the prior art, the utility model provides a prevent power pack structure of high pressure arc discharge, including control panel, upper box body and lower box body, upper box body and upper box body enclose to close and form the cavity of a holding control panel, and the control panel still is fixed with the switch tube, and the switch tube hugs closely the inner wall of the first curb plate of lower box body, the pin and the control panel electricity of switch tube are connected simultaneously, the part that the bottom plate of first curb plate and lower box body meets is outwards protruding, so that form the clearance of preventing the high pressure arc discharge between the pin of switch tube and the first curb plate, because one of the switch tube is high presser foot, it produces the high pressure arc discharge easily, therefore, current way is to cover an insulating silica gel cover on the high presser foot of switch tube, long-term use, insulating silica gel cover is easily burnt out, the life-span is limited, need often change, it is comparatively troublesome; therefore, the utility model discloses directly through being located the part of switch tube pin with first curb plate, the part that the bottom plate of first curb plate and lower box body meet is outside protrusion promptly, draws the pin of big switch tube and the distance of first curb plate, guarantees the heat dissipation of switch tube again, simple structure and stability.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is another schematic angle view of FIG. 2;

fig. 4 is a schematic structural view of the lower case of the present invention;

FIG. 5 is a schematic structural view of the upper case of the present invention;

fig. 6 is another angle view of fig. 1.

The main element symbols are as follows:

1. an upper box body; 2. a control panel; 3. a lower box body; 4. pressing a plate; 11. a back hooking part; 12. mounting holes; 13. a second heat dissipation hole; 21. a switching tube; 31. a base plate; 32. a boss portion; 33. a first side plate; 34. a first heat dissipation hole; 35. a second side plate; 351. a fastening part; 352. and a through hole.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-3, the power supply box structure for preventing high voltage arcing of the present invention includes a control panel 2, an upper box 1 and a lower box 3, the upper box 1 and the upper box 3 enclose a cavity for accommodating the control panel 2, a bottom plate 31 of the lower box 3 extends in the direction of the upper box 1 to form a plurality of protrusions 32, the control panel 2 is placed on the cavity, and then the bottom surface is adhered to the protrusions 32, so that the control panel 2 is fixed on the lower box 3, a certain gap is formed between the control panel 2 and the bottom plate 31 of the lower box 3, since the side of the control panel 2 away from the electronic component is provided with protruding pins, the gap is just used for accommodating the pins, so that the control panel 2 is accommodated on the bottom case 3 and is integrally located on the same plane, and the defect of uneven placement due to uneven arrangement of the pins does not occur; the control panel 2 is further fixed with a switch tube 21, the switch tube 21 is tightly attached to the inner wall of a first side plate 33 of the lower box body 3, a pin of the switch tube 32 is electrically connected with the control panel 2, a part of the first side plate 33 connected with a bottom plate 31 of the lower box body 3 protrudes outwards, and a gap for preventing high-voltage arc discharge is formed between the pin of the switch tube 32 and the first side plate 33, at the moment, the switch tube 21 can be a schottky diode, an MOS (metal oxide semiconductor) tube and the like, and because one of the switch tubes 21 is a high pressure foot, high-voltage arc discharge is easy to generate, therefore, the existing method is that an insulating silica gel sleeve is sleeved on the high pressure foot of the switch tube 21, and the insulating silica gel sleeve is easy to burn out and limited in service life and needs to be frequently replaced, so; therefore, the utility model discloses directly through the part that is located first curb plate 33 switch tube 32 pin, the part that first curb plate 33 meets with the bottom plate 31 of lower box body 3 is outside salient promptly, draws the distance of the pin of big switch tube 32 and first curb plate 33, guarantees the heat dissipation of switch tube 32 again, and can realize through ordinary shaping industry, for example stamping forming etc. simple structure and stability.

In this embodiment, referring to fig. 2 to 5, a plurality of first heat dissipation holes 34 are formed in the first side plate 33, and the first heat dissipation holes 34 are polygonal holes, such as regular hexagonal holes, and the plurality of first heat dissipation holes 34 are arranged in a honeycomb shape, so that the heat dissipation effect is greatly improved by using the honeycomb effect, but of course, the first heat dissipation holes may also be quadrilateral or pentagonal, where the regular hexagonal effect is the best; still include clamp plate 4, clamp plate 4 is made for the almag material, adopt almag material to make, good coefficient of heat dissipation has, and the texture is hard, and weight is lighter, and be equipped with the screw hole on clamp plate 4, clamp plate 4 one end is supported and is held on first curb plate 33, the other end supports and leans on switch tube 32, and fix switch tube 32 on first curb plate 33 through the screw, it is fixed more stable to set up clamp plate 4 firstly, secondly, clamp plate 4 has certain heat conductivility, make switch tube 32's two sides all can go out the heat transfer, the radiating rate is more accelerated.

In the present embodiment, referring to fig. 2 to 6, one of the connection modes of the upper box 1 and the lower box 3 is: the lower box body 3 further comprises a second side plate 35 adjacent to the first side plate 33, one side of the upper box body 1 is detachably connected with the second side plate 35, the other side of the upper box body extends in the vertical direction and then is connected with the bottom plate 31, the upper box body and the lower box body further form a cavity with one open end in an enclosing mode, a wiring terminal can be arranged at the position, located at the opening, of the control plate 2, and therefore a device for arranging the wiring terminal is not needed to be additionally arranged, and the integrity is good; more specifically, one side of the upper box body 1 is provided with a back hook part 11, and the other side is provided with a mounting hole 12; the second side plate 35 is provided with a buckling part 351 matched with the back hook part 11, the bottom plate 31 is provided with a through hole 311 corresponding to the mounting hole 12, and the first side plate 32 and the second side plate 35 are discontinuously arranged, at this time, the back hook part 11 faces the direction of the first side plate 32, at this time, the upper box body 32 advances from the first side plate 32 to the opening direction until the back hook part 11 is buckled with the buckling part 351 to form a buckling structure, and the mounting hole 12 and the through hole 311 are fixed through screws, so that the upper box body 1 and the lower box body 3 are detachably connected, and the maintenance of the control panel 2 at the later stage is facilitated; in order to fix the control board 2 more stably, a plurality of slots 352 are formed in the inner wall of the second side plate 35, the slots 352 are flush with the protruding portion 32, one side of the control board 2 is connected to the slots 352 in a clamped manner and is adhered to the protruding portion 32, the control board 352 is well positioned, and the installation is more stable.

In this embodiment, the upper case 1 is made of an aluminum oxide material, the iron oxide material has a good heat dissipation coefficient and has a certain heat dissipation and cooling effect, the upper case 1 is provided with a plurality of second heat dissipation holes 13, the second heat dissipation holes 13 are arranged in an array to form a heat dissipation channel, due to the structural characteristics of the upper case 1, the upper case 1 has two sides, an upper cover surface and a side surface, the two sides of the upper case 1 are provided with the plurality of second heat dissipation holes 13, so that the heat dissipation area is greatly increased, similarly, the second heat dissipation holes 13 are of a regular hexagonal shape, and the plurality of second heat dissipation holes 13 are arranged in an array to form a honeycomb-shaped second heat dissipation channel, so that the overall heat dissipation effect of the entire case cover 1 is greatly improved by using a honeycomb effect, and certainly, the whole case can be of a quadrilateral or pentagonal shape, where the regular hexagonal effect is the best, on the other hand, in order to reduce the overall shape, the height of the first side plate 33 and the second side plate 35 is set to be 30-35mm, the height of a common power supply device is 40mm, and some types of the control boards 2 do not need to have a high RS accommodating space, such as L, for example, and the power supply box has a good heat dissipation effect, and the height of the first side plate is set to be just as well as required by reducing RS 30.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. The power supply box structure is characterized by comprising a control panel, an upper box body and a lower box body, wherein the upper box body and the upper box body are enclosed to form a cavity for accommodating the control panel; the control panel still is fixed with the switch tube, just the switch tube hug closely in the inner wall of the first curb plate of box body down, simultaneously the pin of switch tube with the control panel electricity is connected, first curb plate with the part that the bottom plate of box body meets is outside protruding down, so that the pin of switch tube with form the clearance of preventing that the high pressure draws the arc between the first curb plate.

2. The structure of claim 1, wherein the first side plate has a plurality of first heat dissipating holes, and the first heat dissipating holes are polygonal holes.

3. The structure of claim 2, further comprising a pressing plate made of aluminum-magnesium alloy, wherein the pressing plate is provided with a screw hole, one end of the pressing plate abuts against the first side plate, the other end of the pressing plate abuts against the switch tube, and the switch tube is fixed on the first side plate through a screw.

4. The structure of claim 1, wherein the lower case further comprises a second side plate adjacent to the first side plate, one side of the upper case is connected to the second side plate, and the other side of the upper case extends in a vertical direction and is connected to the bottom plate, so that the upper and lower cases enclose a cavity with an opening at one end.

5. The structure of the power supply box for preventing high-voltage arc discharge as claimed in claim 4, wherein one side of the upper box body is provided with a back hook part, and the other side is provided with a mounting hole; the second side plate is provided with a buckling part matched with the back hook part, the bottom plate is provided with a through hole corresponding to the mounting hole, the first side plate and the second side plate are discontinuously arranged, and the upper box body and the lower box body are detachably connected.

6. The structure of claim 5, wherein a plurality of slots are formed in the inner wall of the second side plate, the slots are flush with the protrusions, and one side of the control plate is clamped in the slots and adhered to the protrusions.

7. The structure of claim 4, wherein the upper case is made of an aluminum oxide material, and the upper case has a plurality of second heat dissipation holes, and the second heat dissipation holes are arranged in an array to form a heat dissipation channel.

8. The structure of claim 7, wherein the second heat dissipation holes are hexagonal and form a honeycomb-shaped second heat dissipation channel after being arrayed.

9. The structure of claim 1, wherein the height of the first side plate and the second side plate is 30-35 mm.