CN216897220U

CN216897220U - Waterproof power supply connection structure of LED lamp area

Info

Publication number: CN216897220U
Application number: CN202123150971.9U
Authority: CN
Inventors: 伍雄练
Original assignee: Jiangmen Weipu Wire Rod Co ltd
Current assignee: Jiangmen Yuxuan Lighting Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-05
Anticipated expiration: 2031-12-15

Abstract

The waterproof power supply connecting structure of the LED lamp strip comprises a power supply connector, a relay connector and a screw sleeve, wherein a jack is arranged on the power supply connector, a conductive cylinder which is retracted into the jack is arranged in the jack, the relay connector is provided with a connecting plug and a lamp strip contact pin, a square sealing sleeve is arranged on the periphery of the lamp strip contact pin, the screw sleeve is provided with a square inner hole, a bent abdicating groove is arranged on the side wall of the screw sleeve, the abdicating groove divides the side wall of the screw sleeve into a plurality of pressing blocks, an inner pressing plate and an outer pressing plate mutually extend between two adjacent pressing blocks, and the inner pressing plate and the outer pressing plate are mutually overlapped in the radial direction of the screw sleeve; the sealing sleeve is sleeved on the LED lamp strip outer skin, the lamp strip contact pin of the sealing sleeve is in electrical contact with the wiring terminal, the connecting contact pin of the sealing sleeve is inserted into the jack, the fastening nut fastens the connector, the relay connector and the threaded sleeve, the conical nut tightly presses the pressing block on the sealing sleeve, and the outer pressing plate is pressed on the inner pressing plate.

Description

Waterproof power supply connection structure of LED lamp area

Technical Field

The utility model relates to a lamp, in particular to a waterproof power supply connecting structure of an LED lamp strip.

Background

Refer to fig. 2. LED lamp area L has square crust L1, and the parcel has circuit board L2 in the crust L1, and the welding has LED lamp pearl L3 and a plurality of binding post L4 on the circuit board L2, binding post L4 can include positive negative pole power supply terminal and signal connection terminal. Referring to fig. 1, a power connection structure of an existing LED lamp strip includes a power connector, where the power connector includes a plug 11, a wire 12, a lamp strip connector 013, a threaded sleeve 04 sleeved on the lamp strip connector 013, and a conical nut 5 sleeved on the threaded sleeve 04, which are connected in sequence. The light strip connector 013 comprises a light strip pin 014 corresponding to the wiring terminal L4 and a sealing sleeve 025 surrounding the light strip pin 014. The lamp area contact pin 014 inserts the wiring terminal L4 electricity on the circuit board in the LED lamp area internally with LED lamp area and is connected, the seal cover 25 cup joints on LED lamp area crust, be provided with the groove of stepping down 61 on the swivel nut 04 lateral wall, the groove of stepping down separates swivel nut 04 lateral wall for four lamella briquetting 042 evenly, and the swivel nut 04 is screwed up the back by conical nut 5, briquetting 042 compresses tightly seal cover 025 on LED lamp area crust L1. The power connection structure in current LED lamp area has following problem: 1) on the connecting end of the screw sleeve and the lamp strip, because the sealing sleeve is made of soft materials, the friction force is large in the pressing block folding process, the pressing blocks are difficult to be completely folded, the installation difficulty is high, and a gap is easily left between the two pressing blocks to cause poor sealing; 2) on lamp area and lamp area connector link end, because the seal cover is uncovered great, in the installation, if not paying attention to insert supply socket with the plug earlier, the finger touches the lamp area contact pin in the seal ring easily and leads to electrocuteeing, and the security is poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the waterproof power supply connecting structure of the LED lamp strip, which has the advantages of good waterproof performance, simplicity in installation and high safety.

The technical means for solving the technical problems of the utility model is as follows: the waterproof power supply connecting structure of the LED lamp strip comprises the LED lamp strip and a waterproof power supply connecting assembly connected with the LED lamp strip, wherein the LED lamp strip is provided with a square outer skin, a circuit board is wrapped in the outer skin, a plurality of wiring terminals are welded on the circuit board, the waterproof power supply connecting assembly comprises a power supply connector, a relay connector connected with the power supply connector, a waterproof ring arranged between the power supply connector and the relay connector, a threaded sleeve sleeved outside the relay connector, and a conical nut and a fastening nut sleeved on two ends of the threaded sleeve; the power connector comprises a plug, a wire and a connector which are connected in sequence, the end face of the connector is provided with a jack corresponding to the wiring terminal on the circuit board, a conductive cylinder body electrically connected with the wire is arranged in the jack, and the end face of the conductive cylinder body is retracted into the jack; the relay connector comprises a fixing part, one side of the fixing part is provided with a connecting contact pin corresponding to the jack, the other side of the fixing part is provided with a plurality of lamp strip contact pins electrically connected with the connecting contact pins, and the periphery of each lamp strip contact pin is provided with a square sealing sleeve matched with the shape of the LED lamp strip; the lamp belt comprises a lamp belt outer skin, a screw sleeve and a plurality of pressing blocks, wherein the screw sleeve is provided with a cylindrical outer wall surface and a square inner hole matched with the lamp belt outer skin in shape, a sealing end and a connecting end are respectively arranged at two ends of the screw sleeve, external threads are arranged on the outer surfaces of the sealing end and the connecting end, a plurality of bent abdicating grooves are uniformly arranged on the side wall of the sealing end, the abdicating grooves divide the side wall of the sealing end into a plurality of pressing blocks, an inner pressing plate and an outer pressing plate mutually extend between every two adjacent pressing blocks, and the inner pressing plate and the outer pressing plate are mutually overlapped in the radial direction of the screw sleeve; the sealing sleeve is sleeved on the LED lamp strip outer skin, the wiring terminal electrical contact in the lamp strip contact pin and the LED lamp strip is provided, the connecting contact pin is inserted into the jack of the connector and is in electrical contact with the conductive cylinder in the jack, the fastening nut is screwed on the connecting end of the screw sleeve, the connector, the relay connector and the screw sleeve are fastened, the conical nut is screwed on the sealing end of the screw sleeve, the pressing block is pressed on the sealing sleeve, and the outer pressing plate is pressed on the inner pressing plate.

The utility model has the beneficial effects that: according to the utility model, the independent relay connector is adopted, two sides of the relay connector are respectively connected with the LED lamp strip and the connecting part of the power supply connector through the lamp strip contact pin and the connecting contact pin, the diameter of the jack on the connecting part is small, the end face of the conductive cylinder body is retracted into the jack, in the installation process, fingers cannot touch the conductive cylinder body to cause electric shock, and the safety is high.

The pressing blocks are four pressing blocks, the inner pressing plate is arranged on two sides of one pressing block and the outer pressing plate is arranged on two sides of the other pressing block in two adjacent pressing blocks. The seal sleeve and the fixing part are of an integral structure through injection molding. A sealing groove is formed in the periphery of the jack of the connector, and a sealing sleeve is arranged on the periphery of a connecting pin on the fixed part of the relay connector and inserted into the sealing groove; a fixing plate is arranged on the outer side of the connector, the fastening nut is pre-arranged in the lead in a penetrating manner, one end of the fastening nut is connected with the threaded sleeve, the other end of the fastening nut is provided with a baffle, a fixing rib is arranged on the outer surface of the fixing part of the relay connector, and a limiting step is arranged in the connecting end of the threaded sleeve; the waterproof ring is sleeved outside the sealing sleeve, the baffle of the fastening nut abuts against the fixing plate of the connector, the end face of the connector abuts against the outer side of the fixing rib of the relay connector and compresses the waterproof ring, the inner side of the fixing rib abuts against the limiting step in the thread sleeve connecting end, and the fastening nut fixes the connector, the relay connector and the thread sleeve.

Drawings

Fig. 1 is an assembly structure schematic diagram of a conventional waterproof power supply connection assembly for an LED strip.

Fig. 2 is a schematic structural diagram of the LED strip.

Fig. 3 is an assembly schematic view of the waterproof power connection assembly according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of a partial cross-sectional structure of the power connector connection terminal in embodiment 1 of the present invention.

Fig. 5 is a schematic structural diagram of a relay connector in embodiment 1 of the present invention.

Fig. 6 is a schematic half-sectional structure view of a relay joint in embodiment 1 of the present invention.

Fig. 7 is a schematic structural view of a screw shell according to embodiment 1 of the present invention.

Fig. 8 is a schematic view of a connection structure between the waterproof power connection assembly and the LED strip in embodiment 1 of the present invention.

Fig. 9 is a schematic structural view of the section a-a in fig. 8.

Fig. 10 is a structural diagram of a section B-B in fig. 8.

Fig. 11 is an assembly schematic view of a waterproof relay connection assembly according to embodiment 2 of the present invention.

Fig. 12 is a schematic structural diagram of a relay connector according to embodiment 2 of the present invention.

Fig. 13 is a schematic structural view of a screw insert according to embodiment 2 of the present invention.

Fig. 14 is a schematic view of a connection structure between the waterproof relay connection assembly and the LED strip in embodiment 2 of the present invention.

Fig. 15 is a structural view of the section C-C in fig. 14.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. The following description of the relative orientations of the components in the left, right, upper, lower, inner, and outer directions merely indicates the relative positions of the components as illustrated in the drawings, and should not be construed as absolutely limiting the scope of the present invention.

Refer to fig. 2. The LED lamp strip L suitable for the utility model is provided with a square outer skin L1, a circuit board L2 is wrapped in the outer skin L1, an LED lamp bead L3 and a plurality of wiring terminals L4 are welded on the circuit board L2, and the wiring terminals L4 can comprise positive and negative power terminals and signal wiring terminals.

Example 1. Refer to fig. 3. Waterproof power connection structure in LED lamp area includes above-mentioned LED lamp area and the waterproof power coupling assembling who is connected with it. The waterproof power supply connecting assembly comprises a power supply connector 1, a relay connector 2 connected with the power supply connector 1, a waterproof ring 3 arranged between the power supply connector 1 and the relay connector 2, a threaded sleeve 4 sleeved outside the relay connector 2, and a conical nut 5 and a fastening nut 6 sleeved at two ends of the threaded sleeve 4.

Refer to fig. 3 and 4. The power connector 1 comprises a plug 11, a lead 12 and a connector 13 which are connected in sequence. Be provided with on the connector 13 terminal surface with a plurality of jacks 14 that binding post L4 on the circuit board corresponds, be provided with in the jack 14 with the electrically conductive barrel 15 that wire 12 electricity is connected, the retraction of electrically conductive barrel 15 terminal surface in the jack 14, a plurality of jacks 14 peripheries are provided with annular seal groove 16, be provided with in the seal groove 16 along jack 14 axial extension's guide way 18, the connector 13 outside is provided with fixed plate 17. One end of the fastening nut 6 is used for being connected with the threaded sleeve 4, and the other end of the fastening nut is provided with a baffle 61 matched with the fixing part 17. The clamping nut 6 is preferably pre-fitted on the conductor 12, so that the volume of the clamping nut can be reduced and loss can be prevented.

Refer to fig. 5 and 6. The relay connector 2 comprises a fixing part 21, a plurality of connecting pins 22 corresponding to the jacks 14 on the connector 13 are arranged on one side of the fixing part 21, a sealing sleeve 23 is arranged on the periphery of each connecting pin 22, and a guide rib 27 matched with the guide groove 18 on the connecting end of the power connector is arranged on the outer side of each sealing sleeve 23; the LED lamp strip comprises a fixing portion 21 and is characterized in that a plurality of lamp strip contact pins 24 electrically connected with connecting contact pins 22 are arranged on the other side of the fixing portion 21, square sealing sleeves 25 matched with the LED lamp strips in shape are arranged on the peripheries of the lamp strip contact pins 24, the sealing sleeves 25 and the fixing portion 21 are in an injection molding integrated structure, and fixing ribs 26 are arranged on the outer surface of the fixing portion 21.

Refer to fig. 7 to 10. The screw sleeve 4 is provided with a cylindrical outer wall surface and a square inner hole 40 which is matched with the lamp belt outer skin L1 in shape, two ends of the screw sleeve are respectively a sealing end 41 and a connecting end 42, and outer threads 43 are arranged on the outer surfaces of the sealing end 41 and the connecting end 42. The side wall of the sealing end 41 is uniformly provided with four bent yielding grooves 44, the side wall of the sealing end 41 is divided into four pressing blocks 45 by the yielding grooves 44, and an inner pressing plate 451 used for pressing the sealing sleeve 25 and an outer pressing plate 452 pressed on the inner pressing plate 451 extend out of the two adjacent pressing blocks 45. The inner press plate 451 and the outer press plate 452 are overlapped with each other in the radial direction of the screw sleeve 4, or at least can be overlapped when two adjacent press pieces 45 are brought together. Specifically, the two sides of one of the two pressing blocks 45 are arranged in the two adjacent pressing blocks 45, the inner pressing plate 451 is arranged on the two sides of the other pressing block 45, and the outer pressing plate 452 is arranged on the two sides of the other pressing block 45, so that when the pressing blocks 45 are extruded by the conical nuts 5, the pressing blocks 45 of which the two sides are provided with the inner pressing plates 451 can be attached to the outer skin of the lamp strip to be kept static, and the pressing blocks 45 of which the two sides are provided with the outer pressing plates 452 are closed to the outer pressing blocks, so that the sliding friction force between the pressing blocks 45 and the sealing sleeve 25 is further reduced. Or the two sides of the same pressing block 45 are respectively provided with an inner pressing plate 451 and an outer pressing plate 452, and the inner pressing plate 451 and the outer pressing plate 452 between two adjacent pressing blocks 45 are mutually matched. A limiting step 46 matched with the fixing rib 26 on the fixing part 21 is arranged in the connecting end 42. Refer to fig. 6. The conical nut 5 is provided with a conical screw hole 51, the big end of the conical screw hole 51 is used for being connected with the threaded sleeve 4, and the small end of the conical screw hole 51 is provided with a limiting ring 52 matched with the end face of the sealing end 41 of the threaded sleeve 4.

Refer to fig. 3, 8, 9 and 10. The method for connecting the waterproof power supply connecting assembly with the LED lamp strip comprises the following steps: firstly, sequentially sleeving a conical nut 5 and a threaded sleeve 4 on an LED lamp strip L; then, the sealing sleeve 25 of the relay connector 2 is sleeved on the end face of the LED lamp strip, and the lamp strip contact pin 24 is inserted into the end face of the LED lamp strip to be electrically contacted with the wiring terminal L4 in the LED lamp strip L; then, the waterproof ring 3 is sleeved outside the sealing sleeve 23 of the relay connector 2 or in the sealing groove 16 of the power connector connection end, the sealing sleeve 23 is inserted into the sealing groove 16, the guide rib 27 is matched with the guide groove 18, so that the connecting pin 22 can be aligned with the jack 14, and the connecting pin 22 is inserted into the jack 14 and electrically contacted with the conductive cylinder 15 in the jack 14; then screwing a fastening nut 6 into the connecting end 42 of the threaded sleeve 4, wherein a baffle 61 of the fastening nut abuts against a fixing plate 17 of the power supply connector 13, the end surface of the connector 13 abuts against the outer side of a fixing rib 26 of the relay connector 2 and compresses the waterproof ring 3, the inner side of the fixing rib 26 abuts against a limiting step 46 in the threaded sleeve connecting end, and the fastening nut 6 fixes the connector 13, the relay connector 2 and the threaded sleeve 4; finally, the big end of the conical nut 5 is screwed into the sealing end 41 of the threaded sleeve 4 until the end face of the sealing end 41 of the threaded sleeve 4 abuts against the limiting ring 42 of the conical nut 5; at the moment, the conical nut 5 extrudes the pressing block 45 on the threaded sleeve 4, the pressing blocks 45 are mutually closed, the inner pressing plate 451 is attached to the LED lamp strip outer skin, the outer pressing plate 452 is pressed on the inner pressing plate 451, the four pressing blocks 45 surround a square inner hole matched with the LED lamp strip outer skin, and the sealing sleeve 25 is pressed on the LED lamp strip outer skin L1.

In the embodiment 1 of the utility model, the bent abdicating groove is formed in the side wall of the screw sleeve, the abdicating groove divides the side wall of the screw sleeve into the plurality of pressing blocks, the inner pressing plate and the outer pressing plate which are mutually overlapped in the radial direction of the screw sleeve are arranged between the adjacent pressing blocks, the inner pressing plate is attached to the outer skin of the LED lamp strip, and the outer pressing plate is pressed on the inner pressing plate, so that the sliding friction force between the pressing blocks and the sealing sleeve can be reduced, the installation is easier, no gap is ensured between the two pressing blocks, and the sealing is reliable; and because the independent relay connector is adopted, two sides of the relay connector are respectively connected with the LED lamp strip and the connecting part of the power supply connector through the lamp strip contact pin and the connecting contact pin, the diameter of the jack on the connecting part is small, the end face of the conductive barrel is retracted into the jack, in the installation process, fingers cannot touch the conductive barrel to cause electric shock, and the safety is high.

Example 2. The embodiment 2 has the same technical features as the embodiment 1, and the differences between the embodiment 1 and the embodiment are mainly described below, and the detailed description is omitted with reference to the embodiment 1. Refer to fig. 11. The waterproof relay connection structure of the LED lamp strip comprises two sections of LED lamp strips L and a waterproof relay connection assembly for connecting the two sections of LED lamp strips.

Refer to fig. 11 to 15. The waterproof relay connecting assembly comprises a relay connector 2, a threaded sleeve 4 and taper nuts 5, wherein the threaded sleeve 4 is sleeved on the relay connector 2, and the taper nuts 5 are connected to two ends of the threaded sleeve 4. The relay connector 2 comprises a fixing portion 21, light strip pins 24 corresponding to the wiring terminals L4 on the LED light strips L are arranged on two sides of the fixing portion 21, the light strip pins 24 on the two sides of the fixing portion 21 are electrically connected with each other, a square sealing sleeve 25 adapted to the shape of the LED light strip is arranged on the periphery of each light strip pin 24, and the sealing sleeve 25 and the fixing portion 21 are in an injection molding structure. The threaded sleeve 4 is provided with a cylindrical outer wall surface and a square inner hole 40 which is matched with the shape of the lamp belt sheath, two ends of the threaded sleeve are sealed ends, and outer threads 43 are arranged on the outer surfaces of the two sealed ends. The side walls of both ends of the screw sleeve 4 are provided with the same abdicating groove 44, the pressing block 45, the inner pressing plate 451 and the outer pressing plate 452 as those of the screw sleeve sealing end of the embodiment 1.

Refer to fig. 11 to 15. The method for connecting the waterproof relay connection assembly and the LED lamp strip in the embodiment 2 includes the steps that firstly, two conical nuts 5 are respectively sleeved into two sections of LED lamp strips L, the large end of each conical nut 5 faces the end face of each LED lamp strip, and meanwhile, a threaded sleeve 4 is sleeved on one section of the LED lamp strip L; then, the sealing sleeve 25 of the relay connector 2 is sleeved on the end surface of one section of the LED lamp strip, the lamp strip contact pin 24 is inserted into the end surface of the LED lamp strip to be electrically contacted with the wiring terminal L4 in the LED lamp strip L, and the other end of the relay connector 2 is connected with the other section of the LED lamp strip in the same way; then, the threaded sleeve 4 is sleeved on the relay connector 2, finally, the two conical nuts 5 are respectively screwed with two ends of the threaded sleeve 4, the four press blocks 45 surround a square inner hole matched with the outer skin of the LED lamp strip, and the seal sleeve 25 is pressed on the outer skin L1 of the LED lamp strip.

In embodiment 2 of the utility model, the bent abdicating groove is formed in the side wall of the screw sleeve, the abdicating groove divides the side wall of the screw sleeve into a plurality of pressing blocks, the inner pressing plate and the outer pressing plate which are mutually overlapped in the radial direction of the screw sleeve are arranged between the adjacent pressing blocks, the inner pressing plate is attached to the outer skin of the LED lamp strip, and the outer pressing plate is pressed on the inner pressing plate, so that the sliding friction force between the pressing blocks and the sealing sleeve can be reduced, the installation is easier, meanwhile, no gap is ensured between the two pressing blocks, and the sealing is more reliable.

The above description of the preferred embodiments is only a preferred embodiment of the present invention, and does not represent a limitation to the protection content of the present invention, and any technical solutions that can be derived from the normal reasoning of the ordinary skilled person in the spirit of the present invention are the protection scope of the present invention.

Claims

The utility model discloses a waterproof power connection structure in LED lamp area, including LED lamp area and the waterproof power coupling assembling who is connected with it, LED lamp area has square crust, and the parcel has the circuit board in the crust, and the welding has a plurality of binding post, its characterized in that on the circuit board: the waterproof power supply connecting assembly comprises a power supply connector, a relay connector connected with the power supply connector, a waterproof ring arranged between the power supply connector and the relay connector, a threaded sleeve sleeved outside the relay connector, and a conical nut and a fastening nut sleeved on two ends of the threaded sleeve; the power connector comprises a plug, a wire and a connector which are connected in sequence, the end face of the connector is provided with a jack corresponding to the wiring terminal on the circuit board, a conductive cylinder body electrically connected with the wire is arranged in the jack, and the end face of the conductive cylinder body is retracted into the jack; the relay connector comprises a fixing part, one side of the fixing part is provided with a connecting contact pin corresponding to the jack, the other side of the fixing part is provided with a plurality of lamp strip contact pins electrically connected with the connecting contact pins, and the periphery of each lamp strip contact pin is provided with a square sealing sleeve matched with the shape of the LED lamp strip; the lamp belt comprises a lamp belt outer skin, a screw sleeve and a plurality of pressing blocks, wherein the screw sleeve is provided with a cylindrical outer wall surface and a square inner hole matched with the lamp belt outer skin in shape, a sealing end and a connecting end are respectively arranged at two ends of the screw sleeve, external threads are arranged on the outer surfaces of the sealing end and the connecting end, a plurality of bent abdicating grooves are uniformly arranged on the side wall of the sealing end, the abdicating grooves divide the side wall of the sealing end into a plurality of pressing blocks, an inner pressing plate and an outer pressing plate mutually extend between every two adjacent pressing blocks, and the inner pressing plate and the outer pressing plate are mutually overlapped in the radial direction of the screw sleeve; the sealing sleeve is sleeved on the LED lamp strip outer skin, the lamp strip contact pin is in electrical contact with a wiring terminal in the LED lamp strip, the connecting contact pin is inserted into the jack of the connector and is in electrical contact with a conductive cylinder in the jack, the fastening nut is screwed on the connecting end of the screw sleeve, the connector, the relay connector and the screw sleeve are fastened, the conical nut is screwed on the sealing end of the screw sleeve, the pressing block is pressed on the sealing sleeve, and the outer pressing plate is pressed on the inner pressing plate.
2. The waterproof power connection structure of an LED lamp strip as claimed in claim 1, wherein: the pressing blocks are four-clack, the inner pressing plate is arranged on two sides of one of the two adjacent pressing blocks, and the outer pressing plate is arranged on two sides of the other pressing block.
3. The waterproof power connection structure of an LED lamp strip as claimed in claim 1, wherein: the seal sleeve and the fixing part are of an integral structure through injection molding.
4. The waterproof power connection structure of an LED lamp strip as claimed in claim 1, wherein: the periphery of the jack of connector is provided with the seal groove, the connection contact pin periphery on the relay connector fixed part is provided with sealing sleeve, sealing sleeve inserts in the seal groove.
5. A waterproof power supply connection structure of an LED lamp strip as claimed in claim 4, wherein: a fixing plate is arranged on the outer side of the connector, the fastening nut is pre-arranged in the lead in a penetrating manner, one end of the fastening nut is connected with the threaded sleeve, the other end of the fastening nut is provided with a baffle, a fixing rib is arranged on the outer surface of the fixing part of the relay connector, and a limiting step is arranged in the connecting end of the threaded sleeve; the waterproof ring is sleeved outside the sealing sleeve, the baffle of the fastening nut abuts against the fixing plate of the connector, the end face of the connector abuts against the outer side of the fixing rib of the relay connector and compresses the waterproof ring, the inner side of the fixing rib abuts against the limiting step in the thread sleeve connecting end, and the fastening nut fixes the connector, the relay connector and the thread sleeve.