CN205178846U - Heat dissipation lamp house power - Google Patents
Heat dissipation lamp house power Download PDFInfo
- Publication number
- CN205178846U CN205178846U CN201520789020.1U CN201520789020U CN205178846U CN 205178846 U CN205178846 U CN 205178846U CN 201520789020 U CN201520789020 U CN 201520789020U CN 205178846 U CN205178846 U CN 205178846U
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- CN
- China
- Prior art keywords
- power supply
- outer casing
- power
- upper cover
- lamp box
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a heat dissipation lamp house power, including power shell and power supply circuit, the power shell includes box at the bottom of power shell upper cover and the power shell, power shell upper cover with the box is put together at the bottom of the power shell, power supply circuit is fixed in in the inside cavity of power shell. The utility model discloses an ultra -thin lamp house power of LED adopts unique shell structure and packaging technology, makes three kinds of electronic component that mainly generate heat of the ultra -thin lamp house power of LED, can both have better heat dissipation path, has reduced by three kinds of electronic component's that mainly generate heat of the ultra -thin lamp house power of LED temperature rise and whole temperature rise effectively, has improved the life and the reliability level of the ultra -thin lamp house power of LED.
Description
Technical field
The utility model relates to a kind of heat radiation lamp box power supply.
Background technology
LED ultrathin lamp box is a kind of advertising apparatus of extensive use, and it adopts LED as light source, and traditional fluorescent tube of comparing, has significant power savings advantages.LED ultrathin lamp box needs important parts, is power source special, and the effect of this power source special is by the alternating current of civil power, converts the direct current of applicable driving LED light source to, and industry is generally referred to as LED ultrathin lamp box power supply.
LED ultrathin lamp box power supply, has the feature of the following aspects:
1, power output is generally 10W-60W; 2, profile is elongated strip, and cross sectional shape is square, and sectional dimension is generally less than 20*20mm;
LED ultrathin lamp box power supply, general employing high frequency switch power technology, energy conversion efficiency is generally 75-90%, and the electric energy of loss is 10-25%.The electric energy of this part loss mainly distributes with the form of heat.Loss mainly results from three kinds of elements: switching power tube, high frequency transformer, output rectifier diode, so in LED ultrathin lamp box power supply, generating heat maximum is also these three kinds of elements.The useful life of electronic component and its working temperature are negative correlation, and temperature is higher, and useful life is shorter, and if electronic component heating is serious, can directly causes electronic component disabling damage, and then cause the damage of LED ultrathin lamp box power supply.So need to adopt suitable mode, the heat that electric energy loss produces is shifted away effectively, reduce the temperature rise of electronic component as far as possible, thus ensure useful life and the dependability of LED ultrathin lamp box power supply.Resolving the heat dissipation problem of LED ultrathin lamp box power supply, is the key ensureing LED ultrathin lamp box power quality.
LED ultrathin lamp box power supply on sale on the market, shell has following several: 1, plastic cement square tube shell; 2, irony punching press shell; 3, aluminium matter punching press shell; 4, aluminium matter square tube shell.
Shell adopts the LED ultrathin lamp box power supply of plastic cement square tube, is directly placed in square tube by power circuit during assembling.Three kinds of heater elements of LED ultrathin lamp box power supply, are delivered to the inwall of plastic cement square tube, then by the wall thickness of plastic pipe, heat are delivered to outside by heat by radiation.Because the heat conductivility of radiant heat transfer and plastic cement is all undesirable, so adopt the LED ultrathin lamp box power supply of plastic cement square tube shell, radiating effect is bad.
Adopt other three kinds of shells, irony punching press shell, aluminium matter punching press shell and aluminium matter square tube, the LED ultrathin lamp box power supply of manufacture, during assembling, first wraps up power circuit with insulating paper, is then placed in shell by power circuit.These three kinds of shells are irony or aluminium matter, and heat transfer property is relatively good, but owing to wrapping up the insulating paper of power circuit, heat transfer property is very poor, so overall heat dissipation effect is also bad.
LED ultrathin lamp box power supply on sale on the market, exchanges input and the general wire that adopts of direct current output is directly drawn, and user is inconvenient when installation and maintenance.
Utility model content
The utility model proposes a kind of heat radiation lamp box power supply, solve the problems of the prior art.
The technical solution of the utility model is achieved in that
A kind of heat radiation lamp box power supply, comprise outer casing of power supply and power circuit, described outer casing of power supply comprises box at the bottom of outer casing of power supply upper cover and outer casing of power supply, and at the bottom of described outer casing of power supply upper cover and described outer casing of power supply, box is combined, and described power circuit is fixed in described outer casing of power supply internal cavities.
As preferred version of the present utility model, the described outer casing of power supply upper cover left and right sides is provided with dovetail configuration, at the bottom of described outer casing of power supply, box two-phase inner surface sides is provided with oat tail groove structure, described dovetail configuration and described oat tail groove structure block mutually and, at the bottom of the relatively described outer casing of power supply of described outer casing of power supply upper cover box slide.
As preferred version of the present utility model, two ends, described power circuit left and right are provided with input wires terminal and output wiring terminal.
As preferred version of the present utility model, be fixed with high frequency transformer in the middle of described power circuit, a thermal conductive silicon rubber cushion is posted in described high frequency transformer upper end, and described thermal conductive silicon rubber cushion upper end is bonded on described outer casing of power supply and covers.
As preferred version of the present utility model, described power circuit upper left side part is provided with input filter capacitor, is provided with input switch power tube on the right side of described input filter capacitor, and described input switch power tube is fixed on described outer casing of power supply by the first rivet and covers.
Described power circuit right part is provided with output filter capacitor, and the left side of described output filter capacitor is provided with output rectifier diode, and described output rectifier diode is riveted by the second rivet and described outer casing of power supply upper cover.
Beneficial effect
LED ultrathin lamp box power supply of the present utility model, adopt unique shell mechanism and packaging technology, make three kinds of main heat-generating electronic elements of LED ultrathin lamp box power supply, good heat dissipation path can be had, significantly reduce the temperature rise of LED ultrathin lamp box power supply three kinds of main heat-generating electronic elements and overall temperature rise, improve useful life and the reliability level of LED ultrathin lamp box power supply.
LED ultrathin lamp box power supply of the present utility model, has following several advantage:
In main three kinds of heat generating components of LED ultrathin lamp box power supply, switching power tube and output rectifier diode, be directly reliably connected with outer casing of power supply upper cover, and heat is directly delivered in box heat radiation at the bottom of outer casing of power supply upper cover and outer casing of power supply, good heat dissipation effect.And market is at like product on sale, all switching power tube directly cannot be connected with shell with output rectifier diode, radiating effect is poor;
Another heat generating components high frequency transformer of LED ultrathin lamp box power supply, the thermal conductive silicon rubber cushion good by heat conductivility is connected with outer casing of power supply upper cover, and radiating effect is better; And market is at like product on sale, all high frequency transformer directly cannot be connected by conducting-heat elements with shell, radiating effect is poor;
LED ultrathin lamp box power supply, is furnished with input wires terminal and output wiring terminal, facilitates user installation to safeguard.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is the structural representation of each parts of the utility model shown in Fig. 1;
Fig. 3 is the utility model outer casing of power supply end view.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
LED ultrathin lamp box power supply of the present utility model is assembled by outer casing of power supply and power circuit two parts.
Outer casing of power supply is made up of box 2 at the bottom of outer casing of power supply upper cover 1, outer casing of power supply.
Fig. 3 is the side schematic view of box 2 at the bottom of outer casing of power supply upper cover 1, outer casing of power supply, and respectively there is a dovetail configuration on outer casing of power supply upper cover 1 both sides, corresponding, box 2 at the bottom of outer casing of power supply has two oat tail groove structures.Dovetail configuration and oat tail groove structure match, and can be assembled into complete outer casing of power supply.
Power circuit is made up of the major part such as input filter capacitor 3, switching power tube 4, high frequency transformer 7, output rectifier diode 8, output filter capacitor 10, circuit board 11, input wires terminal 12, output wiring terminal 13.
The assemble method of LED ultrathin lamp box power supply is as follows:
The first step, is attached to the end face of high frequency transformer 7 by thermal conductive silicon pad 6;
Second step, aligns outer casing of power supply upper cover 1 with circuit board 11, is bonded together by thermal conductive silicon rubber cushion 6;
3rd step, is riveted together outer casing of power supply upper cover 1 and switching power tube 4 with rivet 5;
4th step, is riveted together outer casing of power supply upper cover 1 and output rectifier diode 8 with rivet 9;
5th step, by the outer casing of power supply upper cover 1 that fits together together with circuit board 11, inserts the dovetail groove of box 2 at the bottom of outer casing of power supply, until complete matching by the dovetail of outer casing of power supply upper cover 1.So far the assembling of LED ultrathin lamp box power supply is completed.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. a heat radiation lamp box power supply, comprise outer casing of power supply and power circuit, it is characterized in that, described outer casing of power supply comprises box (2) at the bottom of outer casing of power supply upper cover (1) and outer casing of power supply, at the bottom of described outer casing of power supply upper cover (1) and described outer casing of power supply, box (2) is combined, described power circuit is fixed in described outer casing of power supply internal cavities, be arranged on a circuit board (11), described outer casing of power supply upper cover (1) left and right sides is provided with dovetail configuration, at the bottom of described outer casing of power supply, box (2) two-phase inner surface sides is provided with oat tail groove structure, described dovetail configuration and described oat tail groove structure block mutually and, box (2) at the bottom of the relatively described outer casing of power supply of described outer casing of power supply upper cover (1) slides.
2. one heat radiation lamp box power supply according to claim 1, it is characterized in that, two ends, described power circuit left and right are provided with input wires terminal (12) and output wiring terminal (13).
3. one heat radiation lamp box power supply according to claim 1, it is characterized in that, high frequency transformer (7) is fixed with in the middle of described power circuit, a thermal conductive silicon rubber cushion (6) is posted in described high frequency transformer (7) upper end, and described thermal conductive silicon rubber cushion (6) upper end is bonded on described outer casing of power supply upper cover (1).
4. one heat radiation lamp box power supply according to claim 1, it is characterized in that, described power circuit upper left side part is provided with input filter capacitor (3), described input filter capacitor (3) right side is provided with input switch power tube (4), and described input switch power tube (4) is fixed on described outer casing of power supply upper cover (1) by the first rivet (5).
5. one heat radiation lamp box power supply according to claim 1, it is characterized in that, described power circuit right part is provided with output filter capacitor (10), the left side of described output filter capacitor (10) is provided with and exports rectifier diode (8), and described output rectifier diode (8) is riveted by the second rivet (9) and described outer casing of power supply upper cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789020.1U CN205178846U (en) | 2015-10-12 | 2015-10-12 | Heat dissipation lamp house power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520789020.1U CN205178846U (en) | 2015-10-12 | 2015-10-12 | Heat dissipation lamp house power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205178846U true CN205178846U (en) | 2016-04-20 |
Family
ID=55742776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520789020.1U Expired - Fee Related CN205178846U (en) | 2015-10-12 | 2015-10-12 | Heat dissipation lamp house power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205178846U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683325A (en) * | 2018-06-15 | 2018-10-19 | 从云敬 | A kind of Switching Power Supply with blimp |
-
2015
- 2015-10-12 CN CN201520789020.1U patent/CN205178846U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108683325A (en) * | 2018-06-15 | 2018-10-19 | 从云敬 | A kind of Switching Power Supply with blimp |
| CN108683325B (en) * | 2018-06-15 | 2020-03-24 | 万金芬 | Switching power supply with sound-proof housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20171012 |