CN103200724A - Light-emitting diode (LED) drive power supply and adhesive pouring method thereof - Google Patents
Light-emitting diode (LED) drive power supply and adhesive pouring method thereof Download PDFInfo
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- CN103200724A CN103200724A CN2013101189425A CN201310118942A CN103200724A CN 103200724 A CN103200724 A CN 103200724A CN 2013101189425 A CN2013101189425 A CN 2013101189425A CN 201310118942 A CN201310118942 A CN 201310118942A CN 103200724 A CN103200724 A CN 103200724A
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- housing
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- sealing gasket
- shell body
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Abstract
The invention discloses a light-emitting diode (LED) drive power supply which comprises a shell body, a PCBA component arranged in the shell body and a wire which is led out from the shell body to the outside of the shell body. Two ends of the shell body form openings and respectively provided with a first end cover and a second end cover. Potting adhesive is poured into two ends in the shell body. A hollow interlayer without potting adhesive is reserved between the potting adhesive at two ends. The invention further discloses a pouring method of the LED drive power supply. The pouring method of the LED drive power supply includes the following steps. Firstly, a first end of the shell body is sealed, secondly, the potting adhesive is poured for the first time and thirdly, after the potting adhesive poured for the first time is solidified, second pouring is performed and a second end of the shell body is sealed. Fourthly, the shell body is inverted. The potting adhesive is poured into the two ends in the shell body for two times and the hollow interlayer is reserved in the middle of the shell body, production technology is simple, good airtight performance is achieved, potting adhesive consumption is reduced, the whole weight of the drive power supply is reduced, manufacturing cost is reduced and meanwhile, tensile strength of the wire is improved and forced detachment is prevented.
Description
Technical field
The present invention relates to a kind of power supply, relate in particular to a kind of LED driving power and encapsulating mode thereof.
Background technology
Along with the continuous enhancing of people's energy saving consciousness, the trend that the LED light fixture replaces conventional lamp is more and more obvious, and the LED driving power has obtained extensive use as an important step on the LED industrial chain.At present, LED driving power on the market is of a great variety, structure and performance differ, be that ZL201120361554.6(Granted publication number is CN202328020U as the patent No.) Chinese utility model patent " a kind of LED driving power " disclosed, this LED driving power includes housing and is located at the interior power control circuit of housing, housing is mainly by body, baffle plate and cover plate are formed, described baffle plate inboard is provided with fixing pin and lug boss, described body two ends are provided with mounting groove, described fixing pin is entrapped in the described mounting groove, simultaneously, described lug boss is embedded in the body both side ends, and baffle plate and body namely are connected and fixed.As seen, simple in structure, assembling flow path simplification that this LED driving power has, assembly and disassembly are convenient, fast, advantage of high production efficiency, still, the sealing between baffle plate and body and the resistance to tension of lead are still waiting further raising.
In order to improve the air-tightness of driving power, existing many water proof type LED driving powers all are perfused with casting glue in enclosure interior, and fill with whole housing by casting glue and realize sealing.Though, adopt this encapsulating mode also can obtain good air tightness, and the resistance to tension of lead is effectively improved, but because whole enclosure interior is filled with casting glue, thereby not only cause the overall weight of LED driving power bigger, and casting glue consumption is bigger, and the production cost of driving power is higher.
In addition; influence along with construction requirement and terrain environment; increasing LED driving power need be installed and used in water or in the moist environment, according to the characteristic requirement of electrical network electricity consumption rule and driving power, for improving the security reliability of LED waterproof driving power; the product electric part is not required short circuit; overcurrent, protections such as overload, and require also to want on the product structure waterproof; moisture proof, sun-proof.Requirement on the product structure is mainly realized by the shell design of LED waterproof driving power with to internal body perfusion marine glue.In the process of producing assembling LED waterproof driving power, generally be that a heat conduction film is packed into earlier in the integral piece aluminium box, in again circuit board being prevented inserting, then untight any end of aluminium box is stamped the screw sealing with face-piece, again the aluminium box is erected on the operating desk, an end of just adorning face-piece down, the aluminium box not close mouth the other end up, and never closed port is irritated marine glue, after marine glue is irritated, fix with the key screw face-piece at close mouth end not, make the aluminium box be the cuboid box body of octahedral sealing, finish installation.Adopt this encapsulating mode to seal, casting glue only seals at a wherein end of aluminium box, causes the sealing property of driving power bad, product fraction defective height.
Summary of the invention
First technical problem to be solved by this invention is at above-mentioned prior art present situation, and the LED that a kind of air-tightness is good and weight is less, production cost is lower is provided driving power.
Second technical problem to be solved by this invention is at above-mentioned prior art present situation, and the LED driving power encapsulating that a kind of production technology is simple, air-tightness good, production cost is low and the lead resistance to tension is strong mode is provided.
The present invention solves the problems of the technologies described above the technical scheme that adopts: this LED driving power, comprise housing, be located at the PCBA assembly of enclosure interior and in housing, lead to lead outside the housing, described housing two ends form opening, be respectively equipped with first end cap and second end cap at the housing two ends, be equipped with the through wires hole that passes for described lead at first end cap and second end cap, it is characterized in that: the two ends in described enclosure interior are perfused with casting glue, and, between the casting glue at above-mentioned two ends, leave the folder dead level that does not contain casting glue.
In order further to improve the air-tightness of driving power, between described first end cap and housing, be provided with first sealing gasket, between described second end cap and housing, be equipped with second sealing gasket.
Improvement as such scheme, described housing is rectangular box, described first end cap, second end cap, first sealing gasket and second sealing gasket all are rectangle, hold four end angles of angle and second end face all to have double-screw bolt for four at the housing first end face, at first end cap, second end cap, four end angles of first sealing gasket and second sealing gasket all have screw, described first end cap and first sealing gasket are fixedlyed connected with described housing after screwing in screw and corresponding double-screw bolt by lock screw, and described second end cap and second sealing gasket are fixedlyed connected with described housing screw in the double-screw bolt of screw and correspondence by lock screw after.
The edge of the through wires hole on first end cap and second end cap scratches even cuts off lead, be provided with protective ring at described lead, and described protective ring is arranged on the through wires hole place of first end cap and second end cap.
A kind of encapsulating mode of LED driving power is characterized in that comprising the steps:
1), closure casing first end;
2), with completing steps 1) driving power place vertically and make second end of the housing up, described casting glue injects enclosure interior from the opening part of second end of the housing from top to bottom and carries out filling first time;
3), treat step 2) in after the casting glue that injects solidifies, casting glue injects enclosure interior from the opening part of second end of the housing to carry out second time and fills, and fills back horse back closure casing second end for the second time;
4), be inverted housing and make second end of the housing down, the uncured casting glue of filling for the second time in the step 3) flows to second end of the housing and is cured, to form described folder dead level in the middle of enclosure interior.
Closure casing first end comprises the following steps: earlier lead to be passed protective ring and protective ring is encased in the through wires hole of first end cap in the step 1) described above, compresses first sealing gasket that is between first end cap and the housing first end face by lock screw again; Closure casing second end comprises the following steps: earlier lead to be passed protective ring and protective ring is encased in the through wires hole of second end cap in the described step 4), compresses second sealing gasket that is between second end cap and the second end of the housing face by lock screw again.
Described casting glue can adopt multiple material, and preferably, described casting glue adopts polyurethane or epoxy resin.
Compared with prior art, the present invention is by being poured in casting glue at the two ends of housing, and in the middle of enclosure interior, leave the folder dead level that does not contain casting glue, not only can obtain good air tightness, and can reduce casting glue material consumption, alleviate the overall weight of driving power and reduce the production cost of driving power, simultaneously, the direct embedding of colloid and lead can also improve the resistance to tension of lead, prevents the violence dismounting.In addition, the design of the present invention by twice encapsulating, it is abundant more and production technology is simple, air-tightness is good, water resistance is excellent to make colloid and contact-making surface fill ground.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the perspective exploded view of Fig. 1;
Fig. 3 uses the preceding structural representation of casting glue for the embodiment of the invention;
Fig. 4 is the cutaway view of Fig. 1;
Fig. 5 is the embodiment of the invention at the first time encapsulating and the structural representation during encapsulating for the second time;
Fig. 6 is the structural representation of the embodiment of the invention after being inverted housing behind the encapsulating second time.
Embodiment
Describe in further detail below in conjunction with the present invention of accompanying drawing embodiment.
As shown in Figure 1 to Figure 3, LED driving power in the present embodiment comprises the housing 3 that is rectangular box, housing 3 inside are provided with PCBA assembly 5, housing 3 two ends are that first end and second end of housing 3 all forms opening, and first end cap 41 is installed at an end opening place of housing 3, and, seal by first sealing gasket 71 between first end cap 41 and the housing 3; The other end opening part of housing 3 is installed second end cap 42, and, seal by second sealing gasket 72 between second end cap 42 and the housing 3.Center at first end cap 41 and second end cap 42 all has through wires hole 8, and lead 1 passes to housing 3 through through wires hole 8 from housing 3 inside.
In the present embodiment, first end cap 41, second end cap 42, first sealing gasket 71 and second sealing gasket 72 are rectangle, four end angles at housing 3 first end faces and housing 3 second end faces all have double-screw bolt 9, at first end cap 41, second end cap 42, four end angles of first sealing gasket 71 and second sealing gasket 72 all have screw 10, lock screw 2 screws in screw 10 with corresponding double-screw bolt 9 backs and with first end cap 41, first sealing gasket 71 is fixedlyed connected with housing 3 and with second end cap 42, second sealing gasket 72 is fixedlyed connected with housing 3, as seen, after adopting first sealing gasket 71 and second sealing gasket 72, can strengthen the air-tightness of this LED driving power.In addition, the edge of the through wires hole 8 on first end cap and second end cap scratches even cuts off lead 1, is provided with protective ring 6 at lead 1, and protective ring 6 is two and is separately positioned on through wires hole 8 places of first end cap 41 and second end cap 42.
As shown in Figure 4, LED driving power in the present embodiment adopts twice process for filling colloid into to seal, perfusion is casting glues 11 such as polyurethane or epoxy resin in housing 3, and, after encapsulating finishes, form solid-state casting glue 11 at the two ends of housing 3 inside, between the casting glue 11 of housing 3 inside at two ends, leave the folder dead level 12 that does not contain casting glue.The LED driving power that adopts this encapsulating structure makes colloid and contact-making surface fill ground more fully on the basis, and also have the following advantages: at first, production technology is simple, air-tightness reaches the water resistance excellence well; Secondly, production cost is low, material consumption is few, overall weight is light and safe and reliable; At last, the direct embedding of casting glue and lead has improved the resistance to tension of lead, prevents the violence dismounting.
As shown in Figure 5 and Figure 6, the encapsulating mode of this LED driving power comprises the steps:
1), closure casing first end 31;
2), with completing steps 1) driving power place vertically and make second end of the housing 32 up, described casting glue 11 injects housing 3 inside from the opening part of second end of the housing 32 from top to bottom and carries out filling first time;
3), treat step 2) in after the casting glue that injects solidifies, casting glue 11 injects housing 3 inside from the opening part of second end of the housing 32 to carry out second time and fills, and is filling second end of back horse back closure casing 3 for the second time;
4), be inverted housing 3 and make second end of the housing 32 down, the uncured casting glue 11 of filling for the second time in the step 3) flows to second end of the housing 32 and is cured, to form described folder dead level 12 at housing 3 bosoms.The secondary encapsulating is finished and is solidified driving power after finishing referring to shown in Figure 4.
In conjunction with shown in Figure 2, above-mentioned steps 1) closure casing first end 31 comprises the following steps: earlier lead 1 to be passed protective ring 6 and protective ring 6 is encased in the through wires hole 8 of first end cap 41 in, compresses first sealing gasket 71 that is between first end cap 41 and housing 3 first end faces by lock screw 2 again.Above-mentioned steps 4) closure casing second end 32 comprises the following steps: earlier lead 1 to be passed protective ring 6 and protective ring 6 is encased in the through wires hole 8 of second end cap 42 in, compresses second sealing gasket 72 that is between second end cap 42 and housing 3 second end faces by lock screw 2 again.
The above only is preferred implementation of the present invention; should be understood that; for those of ordinary skills; do not breaking away under the principle prerequisite of the present invention; can make multiple remodeling or improvement to the present invention; the encapsulating mode that provides such as present embodiment is not limited to waterproof driving power product etc., and these all are regarded as within protection scope of the present invention.
Claims (7)
1. LED driving power, comprise housing (3), be located at the PCBA assembly (5) of enclosure interior and in housing, lead to lead (1) outside the housing, described housing (3) two ends form opening, be respectively equipped with first end cap (41) and second end cap (42) at housing (3) two ends, be equipped with the through wires hole (8) that passes for described lead (1) at first end cap (41) and second end cap (42), it is characterized in that: the two ends inner at described housing (3) are perfused with casting glue (11), and, between the casting glue (11) at above-mentioned two ends, leave the folder dead level (12) that does not contain casting glue.
2. LED driving power according to claim 1 is characterized in that: be provided with first sealing gasket (71) between described first end cap (41) and housing (3), be equipped with second sealing gasket (72) between described second end cap (42) and housing (3).
3. LED driving power according to claim 2, it is characterized in that: described housing (3) is rectangular box, described first end cap (41), second end cap (42), first sealing gasket (71) and second sealing gasket (72) all are rectangle, hold four end angles of angle and second end face all to have double-screw bolt (9) for four at housing (3) first end faces, in first end cap (41), second end cap (42), four end angles of first sealing gasket (71) and second sealing gasket (72) all have screw (10), described first end cap (41) screws in screw (10) with first sealing gasket (71) by lock screw (2) fixedlys connected with described housing (3) with corresponding double-screw bolt (9) back, and described second end cap (42) screws in screw (10) with second sealing gasket (72) by lock screw (2) and fixedlys connected with described housing (3) with corresponding double-screw bolt (9) back.
4. according to claim 1 or 2 or 3 described LED driving powers, it is characterized in that: be provided with protective ring (6) at described lead (1), and the through wires hole (8) that described protective ring (6) is arranged on first end cap and second end cap is located.
5. the encapsulating mode of the described LED driving power of claim 1 is characterized in that comprising the steps:
1), closure casing first end;
2), with completing steps 1) driving power place vertically and make second end of the housing up, described casting glue injects enclosure interior from the opening part of second end of the housing from top to bottom and carries out filling first time;
3), treat step 2) in after the casting glue that injects solidifies, casting glue injects enclosure interior from the opening part of second end of the housing to carry out second time and fills, and fills back horse back closure casing second end for the second time;
4), be inverted housing and make second end of the housing down, the uncured casting glue of filling for the second time in the step 3) flows to second end of the housing and is cured, to form described folder dead level in the middle of enclosure interior.
6. the encapsulating mode of LED driving power according to claim 5, it is characterized in that: closure casing first end comprises the following steps: earlier lead to be passed protective ring and protective ring is encased in the through wires hole of first end cap in the described step 1), compresses first sealing gasket that is between first end cap and the housing first end face by lock screw again; Closure casing second end comprises the following steps: earlier lead to be passed protective ring and protective ring is encased in the through wires hole of second end cap in the described step 4), compresses second sealing gasket that is between second end cap and the second end of the housing face by lock screw again.
7. according to the encapsulating mode of claim 5 or 6 described LED driving powers, it is characterized in that: described casting glue adopts polyurethane or epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101189425A CN103200724A (en) | 2013-04-08 | 2013-04-08 | Light-emitting diode (LED) drive power supply and adhesive pouring method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101189425A CN103200724A (en) | 2013-04-08 | 2013-04-08 | Light-emitting diode (LED) drive power supply and adhesive pouring method thereof |
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| CN103200724A true CN103200724A (en) | 2013-07-10 |
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| CN2013101189425A Pending CN103200724A (en) | 2013-04-08 | 2013-04-08 | Light-emitting diode (LED) drive power supply and adhesive pouring method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104913283A (en) * | 2015-06-05 | 2015-09-16 | 欧普照明股份有限公司 | Sealing structure for irregular cavity of sealing end face, lamp with sealing structure and sealing method |
| CN106368484A (en) * | 2016-10-31 | 2017-02-01 | 常州工学院 | Low-cost anti-buckling support |
| CN107896445A (en) * | 2017-12-28 | 2018-04-10 | 广东正力通用电气有限公司 | A kind of shell structure and assembly technology of street lamp single-lamp controller |
| CN111013942A (en) * | 2019-12-06 | 2020-04-17 | 青岛歌尔智能传感器有限公司 | Heart rate module glue filling method |
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| CN203136293U (en) * | 2013-04-08 | 2013-08-14 | 宁波赛耐比光电有限公司 | LED driving power supply |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101262757A (en) * | 2008-04-09 | 2008-09-10 | 艾默生网络能源有限公司 | Tool for filling glue of power module and filling method |
| CN101877564A (en) * | 2009-04-30 | 2010-11-03 | 浙江关西电机有限公司 | Submersible servodrive system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913283A (en) * | 2015-06-05 | 2015-09-16 | 欧普照明股份有限公司 | Sealing structure for irregular cavity of sealing end face, lamp with sealing structure and sealing method |
| CN106368484A (en) * | 2016-10-31 | 2017-02-01 | 常州工学院 | Low-cost anti-buckling support |
| CN107896445A (en) * | 2017-12-28 | 2018-04-10 | 广东正力通用电气有限公司 | A kind of shell structure and assembly technology of street lamp single-lamp controller |
| CN107896445B (en) * | 2017-12-28 | 2024-03-26 | 广东正力通用电气有限公司 | Shell structure of street lamp single lamp controller and assembly process |
| CN111013942A (en) * | 2019-12-06 | 2020-04-17 | 青岛歌尔智能传感器有限公司 | Heart rate module glue filling method |
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Application publication date: 20130710 |