CN210219456U - Heat-conducting plastic radiator for LED street lamp module - Google Patents
Heat-conducting plastic radiator for LED street lamp module Download PDFInfo
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- CN210219456U CN210219456U CN201921249202.4U CN201921249202U CN210219456U CN 210219456 U CN210219456 U CN 210219456U CN 201921249202 U CN201921249202 U CN 201921249202U CN 210219456 U CN210219456 U CN 210219456U
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Abstract
The utility model discloses a LED street lamp module thermal conductivity plastic radiator, include plastics heat conduction base plate, locate fin and wire fixed head on the plastics heat conduction base plate, be equipped with the through wires hole on the plastics heat conduction base plate, the through wires hole is the shoulder hole, the wire fixed head includes threading pipe and seal cover, outside the seal cover was located to the threading pipe cover, be equipped with the seal ring limit on the outer circumference of seal cover lower extreme, be equipped with the engaging lug of symmetry on the outer circumference of threading pipe, engaging lug and plastics heat conduction base plate fixed connection, the part that the threading pipe is located the engaging lug below is located the threading hole, form sealing contact between the ladder face of seal ring limit mode and threading hole with elastic deformation. The utility model discloses simple structure, convenient assembling is difficult for piling up dust and rainwater, and leakproofness and waterproof nature are good, are favorable to improving LED street lamp life.
Description
Technical Field
The utility model relates to a radiator especially relates to a LED street lamp module thermal conductivity plastic radiator.
Background
The LED street lamp gradually enters the visual field of people with the advantages of directional light emission, low power consumption, good driving characteristic, high response speed, high shock resistance, long service life, environmental protection and the like, and becomes a new generation of energy-saving light source which has the advantage of replacing the traditional light source in the world, so the LED street lamp becomes the best choice for energy-saving reconstruction of road lighting.
The LED street lamp module generally includes a LED light source, a heat sink, and other structures, for example, chinese patent No. CN 204227389U, granted No. 2015.03.25 discloses a heat sink structure of an LED street lamp module, which includes a bottom plate and fins disposed on the bottom plate, and the arrangement directions and angles of the fins are the same; the bottom plate is provided with a group of convex ribs, a group of blind holes are distributed on the convex ribs, and the thickness of the convex ribs is matched with the depth of the blind holes. The fin is provided with at least one columnar structure, and the columnar structure is perpendicular to the bottom plate and extends from the surface of the bottom plate to the top end of the fin; the columnar structures are arranged on two sides of the fins. The radiator has the following defects: (1) dust is easily accumulated in the grooves among the transversely arranged convex ribs, the heat dissipation effect of the heat radiator is influenced, meanwhile, water is easily accumulated, and the service life of the LED street lamp is shortened; (2) the lead on the lamp panel in the LED street lamp module directly passes through the threading hole on the bottom plate of the radiator to be connected with the power supply, the lead is not fixed, and when the lead is pulled in the installation of the LED street lamp (relative movement is easy to generate between the lead and the threading hole), the separation of the welding part of the lead and the lamp panel is easy to cause; (3) a gap is easily formed between the wire and the threading hole in the bottom plate of the radiator, and the sealing performance and the waterproof performance are poor, so that the service life of the LED street lamp is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a solve the above-mentioned technical problem that LED street lamp module group radiator of prior art exists, provide a simple structure, convenient assembling is difficult for piling up dust and rainwater, and leakproofness and waterproof nature are good, are favorable to improving LED street lamp module group thermal conductivity plastic radiator of LED street lamp life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a LED street lamp module thermal conductivity plastic radiator, include plastics thermal conductivity base plate and locate the fin on the plastics thermal conductivity base plate, be equipped with the through wires hole on the plastics thermal conductivity base plate, LED street lamp module thermal conductivity plastic radiator still includes the wire fixed head, the through wires hole is the shoulder hole, the wire fixed head includes threading pipe and seal cover, outside the seal cover was located to the threading pipe cover, be equipped with the seal ring limit on the outer circumference of seal cover lower extreme, be equipped with the engaging lug of symmetry on the outer circumference of threading pipe, engaging lug and plastics thermal conductivity base plate fixed connection, the part that the threading pipe is located the engaging lug below is located the threading hole, form sealing contact between the ladder face of seal ring limit mode with elastic deformation and threading hole. The utility model discloses in through the cooperation of wire fixed head and through wires hole, fix, seal the wire, can not only improve the leakproofness and waterproof nature of the utility model, when installing the LED street lamp and pulling the wire, be difficult for causing the wire to throw off with the welding department of lamp plate moreover; the threading hole is a stepped hole with a large upper part and a small lower part, the large-diameter section of the stepped hole is used for placing the threading pipe, the outer diameter of the threading pipe is matched with the inner diameter of the large-diameter section of the stepped hole, a connecting lug on the threading pipe is fixedly connected with the plastic heat-conducting substrate to fix the threading pipe, a lead penetrates out of the small-diameter section of the stepped hole and then penetrates into the sealing sleeve, and finally penetrates out of the threading pipe; meanwhile, the lead and the sealing sleeve are sealed, so that the waterproof effect is good; the sealing ring edge is in sealing contact with the stepped surface of the threading hole in an elastic deformation mode, so that the tightness between the threading pipe and the plastic heat-conducting substrate is improved, and the waterproof effect is improved.
Preferably, the thickness of the plastic heat-conducting substrate in the width direction gradually decreases from the middle to both sides, so that two symmetrical inclined slopes are formed on the surface of the plastic heat-conducting substrate. The middle of the thickness of the plastic heat conduction substrate is large, and the two sides of the thickness of the plastic heat conduction substrate are small, so that the surface of the plastic heat conduction substrate forms a convex ridge structure, the structural strength of the plastic heat conduction substrate is favorably improved, and the plastic heat conduction substrate is not easy to warp; the slope surface is not easy to accumulate impurities such as dust, and drainage is convenient, so that the service life of the LED street lamp is prolonged.
Preferably, the slope of the inclined slope surface is 10-20 degrees.
Preferably, the plastic heat-conducting substrate is provided with a local boss along the width direction, the upper surface of the local boss is a plane, the plane forms an installation surface, the connecting lug is in contact with the installation surface, and the threading hole is formed in the middle of the local boss. The local boss can increase the local thickness of the plastic heat-conducting substrate so as to meet the embedded depth of the copper nut; the mounting surface is used for placing the connecting lug, so that the connecting lug can be stably placed.
Preferably, the local bosses on two sides of the threading hole are embedded with copper nuts, and the connecting lugs are fixedly connected with the local bosses through screws in threaded connection with the copper nuts. The engaging lug is fixedly connected with the local boss through a screw in threaded connection with the copper nut, so that the connection is firm, and the disassembly and the assembly are convenient.
Preferably, the local boss is provided with a stress dispersion groove at a position outside the copper nut. The thickness of local boss is thicker, easily causes the interior outer cooling rate of material inconsistent and produces the internal stress when injection moulding for the back of plastics heat conduction base plate produces the pit, and the stress dispersion groove has certain degree of depth, makes the interior outer cooling rate of material even unanimous when injection moulding of local boss, and the internal stress that can effective dispersion production effectively prevents the production of pit.
Preferably, the local boss and the plastic heat-conducting substrate are of a homogeneous and integral structure.
Preferably, the radiating fins comprise high radiating fins and low radiating fins, the high radiating fins are arranged at intervals along the length direction of the heat conducting substrate, and the low radiating fins are arranged between the adjacent high radiating fins on the two sides of the local boss. The radiating fins in the utility model comprise high radiating fins and low radiating fins, and the height of the low radiating fins is lower than that of the high radiating fins, so that the height difference exists between the low radiating fins and the high radiating fins, which is beneficial to the convection of air; meanwhile, the heat dissipation area of the low heat dissipation fins is smaller than that of the high heat dissipation fins, so that the low heat dissipation fins and the high heat dissipation fins have different temperatures, and air near the heat dissipation fins with higher temperatures can actively circulate to the heat dissipation fins with lower temperatures to form convection, thereby being beneficial to improving the heat dissipation effect and the heat dissipation efficiency.
Preferably, reinforcing ribs are arranged between the high radiating fin and the plastic heat conducting substrate and between the low radiating fin and the plastic heat conducting substrate.
Preferably, an annular rib is arranged on the edge of the inner side of the opening at the upper end of the threading pipe, and the upper end of the sealing sleeve abuts against the annular rib. The annular flange plays a limiting role, and the sealing sleeve is prevented from being pulled out from the threading pipe.
Therefore, the utility model discloses following beneficial effect has:
(1) the lead penetrates out of the small-diameter section of the stepped hole and then penetrates into the sealing sleeve, and finally penetrates out of the threading pipe, the sealing sleeve is made of elastic materials such as rubber, the lead and the sealing sleeve are in interference fit, and the friction force between the lead and the sealing sleeve is large after the lead penetrates into the sealing sleeve, so that the lead is not easy to pull when the lead is pulled, and the separation of a welding part of the lead and a lamp panel caused by the pulling of the lead can be effectively prevented;
(2) the lead and the sealing sleeve are sealed, so that the waterproof effect is good;
(3) the sealing ring edge is in sealing contact with the stepped surface of the threading hole in an elastic deformation mode, so that the tightness between the threading pipe and the plastic heat-conducting substrate is improved, and the waterproof effect is improved.
Drawings
Fig. 1 is an axial view of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is an exploded view of the lead anchor head of fig. 2.
Fig. 4 is a sectional view taken along a-a in fig. 1.
Fig. 5 is a sectional view taken along the direction B-B in fig. 1.
In the figure: the heat-conducting plastic wire-wrapped type heat-conducting base plate comprises a plastic heat-conducting base plate 1, a wire-wrapping hole 2, a wire-wrapping pipe 3, a sealing sleeve 4, a sealing ring edge 5, a connecting lug 6, an inclined slope surface 7, a local boss 8, a mounting surface 9, a copper nut 10, a stress dispersion groove 11, a high radiating fin 12, a low radiating fin 13, a reinforcing rib 14 and an annular flange 15.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, 2 and 3, the heat-conducting plastic radiator for the LED street lamp module comprises a plastic heat-conducting substrate 1, and a heat sink and a wire fixing head fixed on the plastic heat-conducting substrate; the thickness of the plastic heat-conducting substrate in the width direction is gradually reduced from the middle to two sides, so that two symmetrical inclined slopes 7 (shown in figure 4) are formed on the surface of the plastic heat-conducting substrate, and the gradient of each inclined slope is 10 degrees; a local boss 8 is formed in the middle of the plastic heat-conducting substrate in a protruding mode upwards along the width direction of the plastic heat-conducting substrate, the upper surface of the local boss is a plane, an installation surface 9 is formed on the plane, a threading hole 2 is formed in the middle of the installation surface, the threading hole is a stepped hole with the inner diameter being large at the top and small at the bottom, and copper nuts 10 are embedded in the local bosses located on the two sides of the threading hole (see fig. 5); two stress dispersion grooves 11 are formed in the positions, located on the outer sides of the copper nuts, of the local bosses; the lead fixing head comprises a threading pipe 3 and a sealing sleeve 4, the threading pipe is sleeved outside the sealing sleeve, the edge of the inner side of an opening at the upper end of the threading pipe protrudes inwards to form an annular flange 15, the upper end of the sealing sleeve is abutted against the annular flange, the outer circumferential surface at the lower end of the sealing sleeve extends outwards to form a sealing ring edge 5, the section of the sealing ring edge is in a right-angled triangle shape, and symmetrical connecting lugs 6 are fixed on the outer circumference of the threading pipe; the part of the threading pipe below the connecting lug is positioned in the threading hole, and the connecting lug is contacted with the local boss and is fixedly connected with the local boss through a screw in threaded connection with a copper nut; the sealing ring edge is in sealing contact with the stepped surface of the threading hole in an elastic deformation mode; the radiating fins comprise high radiating fins 12 and low radiating fins 13, the high radiating fins are arranged at intervals along the length direction of the heat conducting substrate, the low radiating fins are arranged between the adjacent high radiating fins positioned at two sides of the local boss, and reinforcing ribs 14 are arranged between the high radiating fins and the plastic heat conducting substrate and between the low radiating fins and the plastic heat conducting substrate.
The utility model discloses a concrete installation does: after the lead of the LED street lamp is penetrated out from the small-diameter section of the threading hole, the penetrated lead penetrates into the sealing sleeve, the lead is forcibly pulled out from the sealing sleeve until the lead has enough connection length, the part of the threading pipe below the connecting lug is sleeved into the large-diameter section of the threading hole, the connecting lug is attached to the mounting surface on the local boss, finally, the screw is screwed into the copper nut to fix the connecting lug and the local boss, meanwhile, the sealing ring edge is in sealing contact with the step surface of the threading hole in an elastic deformation mode, and then the whole mounting process is completed. Because the lead and the sealing sleeve are in interference and sealing fit, after the lead penetrates into the sealing sleeve, the friction force between the lead and the sealing sleeve is large, so that when the lead is connected with a power supply, the lead is not easy to move relative to the sealing sleeve by pulling, and the separation of the welding part of the lead and the lamp panel caused by pulling the lead can be effectively prevented; simultaneously sealed cooperation between wire and the seal cover forms sealing contact between the ladder face of seal ring limit with elastic deformation's mode and through wires hole, through double sealing in order to guarantee the utility model discloses a leakproofness and waterproof nature.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent structure transform of doing to above embodiment the utility model discloses technical scheme's protection scope.
Claims (10)
1. The utility model provides a LED street lamp module thermal conductivity plastic radiator, includes plastics thermal conductivity base plate (1) and locates the fin on the plastics thermal conductivity base plate, be equipped with through wires hole (2) on the plastics thermal conductivity base plate, its characterized in that, LED street lamp module thermal conductivity plastic radiator still includes the wire fixed head, the through wires hole is the shoulder hole, the wire fixed head includes threading pipe (3) and seal cover (4), outside the seal cover was located to the threading pipe box, be equipped with seal ring limit (5) on the outer circumference of seal cover lower extreme, be equipped with engaging lug (6) of symmetry on the outer circumference of threading pipe, engaging lug and plastics thermal conductivity base plate fixed connection, the part that the threading pipe is located the engaging lug below is located the threading hole, form sealing contact between the shoulder with elastic deformation's mode and the shoulder step face of through wires hole.
2. The LED street lamp module thermal conductive plastic heat sink according to claim 1, wherein the thickness of the plastic thermal conductive substrate in the width direction gradually decreases from the middle to both sides, so that two symmetrical inclined slopes (7) are formed on the surface of the plastic thermal conductive substrate.
3. The LED street lamp module thermally conductive plastic heat sink as claimed in claim 2, wherein the slope of the inclined slope is 10-20 °.
4. The LED street lamp module heat-conducting plastic radiator as claimed in claim 1, 2 or 3, wherein the plastic heat-conducting substrate is provided with a local boss (8) along the width direction thereof, the upper surface of the local boss is a plane which forms a mounting surface (9), the connecting lug is in contact with the mounting surface, and the threading hole is formed in the middle of the local boss.
5. The LED street lamp module thermal conductive plastic radiator as claimed in claim 4, wherein the local bosses at two sides of the threading hole are embedded with copper nuts (10), and the connection lug is fixedly connected with the local bosses through screws screwed with the copper nuts.
6. The LED street lamp module thermal conductive plastic radiator as claimed in claim 5, wherein the local bosses are provided with stress dispersion grooves (11) at positions outside the copper nuts.
7. The LED street lamp module thermally conductive plastic heat sink as claimed in claim 6, wherein the local bosses and the plastic thermally conductive substrate are of a homogeneous and integral structure.
8. The LED street lamp module thermal conductive plastic radiator as claimed in claim 1, wherein the heat sink comprises high heat sinks (12) and low heat sinks (13), the high heat sinks are arranged at intervals along the length direction of the heat conductive substrate, and the low heat sinks are arranged between the adjacent high heat sinks on both sides of the local boss.
9. The LED street lamp module heat-conducting plastic radiator according to claim 8, wherein reinforcing ribs (14) are arranged between the high heat dissipation plate and the plastic heat-conducting substrate, and between the low heat dissipation plate and the plastic heat-conducting substrate.
10. The LED street lamp module heat-conducting plastic radiator as claimed in claim 1, wherein an annular rib (15) is arranged on the inner side edge of the opening at the upper end of the threading tube, and the upper end of the sealing sleeve abuts against the annular rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921249202.4U CN210219456U (en) | 2019-08-02 | 2019-08-02 | Heat-conducting plastic radiator for LED street lamp module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921249202.4U CN210219456U (en) | 2019-08-02 | 2019-08-02 | Heat-conducting plastic radiator for LED street lamp module |
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| Publication Number | Publication Date |
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| CN210219456U true CN210219456U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921249202.4U Active CN210219456U (en) | 2019-08-02 | 2019-08-02 | Heat-conducting plastic radiator for LED street lamp module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543554A (en) * | 2022-02-24 | 2022-05-27 | 天地（常州）自动化股份有限公司 | Heat radiator |
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2019
- 2019-08-02 CN CN201921249202.4U patent/CN210219456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114543554A (en) * | 2022-02-24 | 2022-05-27 | 天地（常州）自动化股份有限公司 | Heat radiator |
| CN114543554B (en) * | 2022-02-24 | 2024-06-11 | 天地（常州）自动化股份有限公司 | Heat dissipation system |
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